WO2016165115A1 - Knob structure and follow-focus remote controller using same - Google Patents

Abstract

A knob structure (100), comprising a fixed piece (12), a rotational piece (32) rotatably disposed on the fixed piece (12), and at least one movable piece (34) movably disposed between the fixed piece (12) and the rotational piece (32). The fixed piece (12) comprises a socket portion (121), the rotational piece (32) being disposed on the socket portion (121). First damping grease is provided between the at least one movable piece (34) and the fixed piece (12), second damping grease is provided between the at least one movable piece and the rotational piece (32), and the damping magnitudes of the first damping grease and the second damping grease are different. Also provided is a follow-focus remote controller (200) using the knob structure (100). A rotation damping regulation range of the knob structure (100) is relatively large.

Description

Knob structure and focus control remote control using the same Technical field

The invention relates to a knob structure, in particular to a hard disk knob structure for fixing a hard disk and a focus control remote controller using the same.

Background technique

The traditional focus control remote control uses a knob structure to remotely control the focus of the camera. Generally, the knob structure includes a rotatable rotating member and a fixing member, and a damping grease disposed between the rotating member and the fixing member. The rotating member is made of an elastic material such as plastic or rubber, and the fixing member is made of metal, and the rotating member can be adjusted by adjusting the pressing force of the rotating member and the fixing member against the damping grease. And a rotation resistance between the fixing members, so that the rotation between the rotating member and the fixing member is smoother. However, since the contact area between the rotating member and the fixing member of the knob structure is small, the capacity of the damping grease is limited, and the rotating member and the fixing member are added to the damping grease. When the pressure is applied, the damping grease is easily squeezed from between the rotating member and the fixing member, causing the rotating member to directly contact the fixing member, and the friction between the two increases. The knob assembly is squeaky during adjustment, which is not conducive to accurately adjusting the rotation angle of the knob assembly, and is not conducive to controlling the focus of the camera. In addition, the above-described knob assembly has a relatively small damping adjustment range.

Summary of the invention

In view of this, it is necessary to provide a knob structure having a relatively large damping adjustment range and a focus control remote controller using the knob structure.

A knob structure includes a fixing member, a rotating member rotatably disposed on the fixing member, and at least one movable member movably disposed between the fixing member and the rotating member. The fixing member includes a receiving portion, and the rotating member is disposed on the receiving portion. a first damping grease is disposed between the at least one movable member and the fixing member, and a second damping grease is disposed between the at least one movable member and the rotating member, the first damping grease and the first The damping of the two damping greases is not the same.

Further, the number of the movable members is plural, a plurality of the movable members are stackedly disposed between the fixing member and the rotating member, and the first damping grease is disposed in the plurality of the movable members. Between one of the fixing members and the fixing member, the second damping grease is disposed between one of the plurality of movable members near the rotating member and the rotating member, and each adjacent two A third damping grease is also disposed between the movable members to form a plurality of damping grease layers.

Further, the damping levels of the plurality of damping grease layers are different.

In some embodiments, the plurality of damping grease layers have the same damping magnitude.

In some embodiments, a portion of the plurality of damping grease layers have the same damping size, and the other portion of the damping grease layer has a different damping magnitude.

Further, the knob structure further includes an adjustment assembly including a guide member coupled to the fixing member and the rotating member and an adjusting member movably disposed on the guiding member, the adjusting The member is capable of driving the movement of the rotating member under the driving of an external force to adjust the pressure between the movable member and the rotating member and the fixing member, respectively.

Further, a screw connection is formed between the adjusting member and the guiding member, and by rotating the adjusting member, a mounting position of the adjusting member relative to the guiding member can be adjusted.

Further, the adjusting member is slidably disposed on the guiding member, and the guiding member is formed with a plurality of latching portions, and the adjusting member is formed with a latching engagement with the latching portion And the adjusting member is selectively engageable with one of the plurality of the holding portions under the driving of the external force to adjust the mounting position of the adjusting member relative to the guiding member.

Further, one of the holding portion and the engaging portion is a groove, and the other is a holding protrusion that is engaged with the groove.

Further, the adjusting component further includes an elastic member disposed between the adjusting member and the rotating member, and the adjusting member can adjust the elastic force of the elastic member under the driving of an external force, thereby adjusting The movable member is respectively pressed with the pressure between the rotating member and the fixing member.

Further, the adjustment assembly further includes a pressing member that abuts between the elastic member and the adjusting member.

Further, the elastic member is a coil spring sleeved on the guide member, and the pressing member includes an outer sleeve sleeved on the guide member and a flange formed on the outer sleeve. The outer sleeve is inserted into the elastic member such that the flange abuts against an end of the elastic member.

Further, the pressing member further includes an inner sleeve rotatably disposed between the guide member and the outer sleeve, and a roller disposed between the inner sleeve and the outer sleeve; the adjusting The pieces are held against the inner kit.

Further, the rotating member includes a peripheral wall and a bottom wall formed at one end of the peripheral wall, the bottom wall is disposed adjacent to the fixing member, the bottom wall is provided with a fitting portion, and the movable member is disposed at the fixing Between the piece and the mating portion.

Further, the knob structure further includes a connecting shaft, the connecting shaft is disposed through the fixing member and the bottom wall, and the guiding member is disposed on the connecting shaft.

Further, a through hole is formed in the fixing member, and a through hole is disposed in the through hole; the connecting shaft is disposed through the sleeve and connected to the bottom wall, The connecting shaft is rotatably connected to the fixing member through the sleeve.

Further, the through hole is a stepped hole and has a stepped surface, and the sleeve comprises an outer sleeve sleeved on the connecting shaft and a flange formed on the outer sleeve, the outer sleeve The hole is received in the through hole, and the flange is pressed against the stepped surface of the through hole.

Further, the sleeve further includes an inner sleeve disposed between the connecting shaft and the outer sleeve, and a roller disposed between the inner sleeve and the outer sleeve; the connecting shaft is worn The inner kit is provided and fixedly coupled to the inner kit.

Further, the connecting shaft includes a socket portion and a plug portion and an abutting portion respectively formed at two ends of the socket portion, the socket portion is fixedly connected to the inner sleeve, and the plug portion is disposed The bottom wall is connected to the guiding member, the abutting portion has a diameter larger than a diameter of the socket portion, and the abutting portion abuts the end portion of the inner sleeve.

Further, the receiving portion is provided with a connecting portion, the connecting portion is provided with a first receiving cavity, the movable member is received in the first receiving cavity, and the engaging portion protrudes into the first portion In the containment chamber.

Further, a first receiving groove is defined in the bottom wall of the first receiving cavity, and the first receiving groove is configured to receive the first damping grease.

Further, the first receiving groove comprises at least one of a plurality of concentric annular grooves, a radial groove, a plurality of concave points, a plurality of elongated grooves, and a plurality of curved grooves.

Further, a second receiving cavity is disposed on a side of the bottom wall facing the fixing member, the connecting portion is protruded and received in the second receiving cavity, and the engaging portion is formed by the second receiving cavity The bottom wall is formed to protrude toward the first receiving cavity.

Further, a second receiving groove is defined in the bottom wall of the second receiving cavity, and the second receiving groove is configured to receive the second damping grease.

Further, the second receiving groove comprises at least one of a plurality of concentric annular grooves, a radial groove, a plurality of concave points, a plurality of elongated grooves, and a plurality of curved grooves.

Further, a frictional force when the first damping grease is disposed between the fixing member and the movable member is smaller than a friction between the fixing member and the movable member when the first damping grease is not disposed force.

Further, the fixing member and the movable member are respectively made of materials having different hardnesses.

Further, the fixing member is made of an aluminum alloy, and the movable member is made of brass.

Further, a frictional force when the second damping grease is disposed between the rotating member and the movable member is smaller than a frictional force when the second damping grease is not disposed between the rotating member and the member .

Further, the rotating member and the movable member are respectively made of materials having different hardnesses.

Further, the rotating member is made of an aluminum alloy, and the movable member is made of brass.

A focus remote controller includes a controller, an angle sensor electrically connected to the controller, and a knob structure electrically connected to the controller and the angle sensor. The knob structure includes a fixing member and a rotating member rotatably disposed on the fixing member, the fixing member includes a receiving portion, and the rotating member is disposed on the receiving portion. The knob structure further includes at least one movable member movably disposed between the fixed member and the rotating member. A first damping grease is disposed between the at least one movable member and the fixing member, and a second damping grease is disposed between the at least one movable member and the rotating member. Wherein the first damping grease and the second damping grease have different damping sizes, the angle sensor is electrically connected to the knob structure, and is used for sensing rotation angle information of the rotating member, and the The rotation angle information is communicated to the controller, which issues a corresponding control command.

Further, the number of the movable members is plural, a plurality of the movable members are stackedly disposed between the fixing member and the rotating member, and the first damping grease is disposed in the plurality of the movable members. Between one of the fixing members and the fixing member, the second damping grease is disposed between one of the plurality of movable members near the rotating member and the rotating member, and each adjacent two A third damping grease is also disposed between the movable members to form a plurality of damping grease layers.

Further, the damping levels of the plurality of damping grease layers are different.

In some embodiments, the plurality of damping grease layers have the same damping magnitude.

In some embodiments, a portion of the plurality of damping grease layers of the movable member have the same damping size, and the other portion of the damping grease layer has a different damping magnitude.

Further, the knob structure further includes an adjustment assembly including a guide member coupled to the fixing member and the rotating member and an adjusting member movably disposed on the guiding member, the adjusting The member is capable of driving the movement of the rotating member under the driving of an external force to adjust the pressure between the movable member and the rotating member and the fixing member, respectively.

Further, a screw connection is formed between the adjusting member and the guiding member, and by rotating the adjusting member, a mounting position of the adjusting member relative to the guiding member can be adjusted.

Further, the adjusting member is slidably disposed on the guiding member, and the guiding member is formed with a plurality of latching portions, and the adjusting member is formed with a latching engagement with the latching portion And the adjusting member is selectively engageable with one of the plurality of the holding portions under the driving of the external force to adjust the mounting position of the adjusting member relative to the guiding member.

Further, one of the holding portion and the engaging portion is a groove, and the other is a holding protrusion that is engaged with the groove.

Further, the adjusting component further includes an elastic member disposed between the adjusting member and the rotating member, and the adjusting member can adjust the elastic force of the elastic member under the driving of an external force, thereby adjusting The movable member is respectively pressed with the pressure between the rotating member and the fixing member.

Further, the adjustment assembly further includes a pressing member that abuts between the elastic member and the adjusting member.

Further, the elastic member is a coil spring sleeved on the guide member, and the pressing member includes an outer sleeve sleeved on the guide member and a flange formed on the outer sleeve. The outer sleeve is inserted into the elastic member such that the flange abuts against an end of the elastic member.

Further, the pressing member further includes an inner sleeve rotatably disposed between the guide member and the outer sleeve, and a roller disposed between the inner sleeve and the outer sleeve; the adjusting The pieces are held against the inner kit.

Further, the rotating member includes a peripheral wall and a bottom wall formed at one end of the peripheral wall, the bottom wall is disposed adjacent to the fixing member, the bottom wall is provided with a fitting portion, and the movable member is disposed at the fixing Between the piece and the mating portion.

Further, the knob structure further includes a connecting shaft, the connecting shaft is disposed through the fixing member and the bottom wall, and the guiding member is disposed on the connecting shaft.

Further, a through hole is formed in the fixing member, and a through hole is disposed in the through hole; the connecting shaft is disposed through the sleeve and connected to the bottom wall, The connecting shaft is rotatably connected to the fixing member through the sleeve.

Further, the through hole is a stepped hole and has a stepped surface, and the sleeve comprises an outer sleeve sleeved on the connecting shaft and a flange formed on the outer sleeve, the outer sleeve The hole is received in the through hole, and the flange is pressed against the stepped surface of the through hole.

Further, the sleeve further includes an inner sleeve disposed between the connecting shaft and the outer sleeve, and a roller disposed between the inner sleeve and the outer sleeve; the connecting shaft is worn The inner kit is provided and fixedly coupled to the inner kit.

Further, the connecting shaft includes a socket portion and a plug portion and an abutting portion respectively formed at two ends of the socket portion, the socket portion is fixedly connected to the inner sleeve, and the plug portion is disposed The bottom wall is connected to the guiding member, the abutting portion has a diameter larger than a diameter of the socket portion, and the abutting portion abuts the end portion of the inner sleeve.

Further, the receiving portion is provided with a connecting portion, the connecting portion is provided with a first receiving cavity, the movable member is received in the first receiving cavity, and the engaging portion protrudes into the first portion In the containment chamber.

Further, a first receiving groove is defined in the bottom wall of the first receiving cavity, and the first receiving groove is configured to receive the first damping grease.

Further, the first receiving groove comprises at least one of a plurality of concentric annular grooves, a radial groove, a plurality of concave points, a plurality of elongated grooves, and a plurality of curved grooves.

Further, a second receiving cavity is disposed on a side of the bottom wall facing the fixing member, the connecting portion is protruded and received in the second receiving cavity, and the engaging portion is formed by the second receiving cavity The bottom wall is formed to protrude toward the first receiving cavity.

Further, a second receiving groove is defined in the bottom wall of the second receiving cavity, and the second receiving groove is configured to receive the second damping grease.

Further, the second receiving groove comprises at least one of a plurality of concentric annular grooves, a radial groove, a plurality of concave points, a plurality of elongated grooves, and a plurality of curved grooves.

Further, a frictional force when the first damping grease is disposed between the fixing member and the movable member is smaller than a friction between the fixing member and the movable member when the first damping grease is not disposed force.

Further, the fixing member and the movable member are respectively made of materials having different hardnesses.

Further, the fixing member is made of an aluminum alloy, and the movable member is made of brass.

Further, a frictional force when the second damping grease is disposed between the rotating member and the movable member is smaller than a frictional force when the second damping grease is not disposed between the rotating member and the member .

Further, the rotating member and the movable member are respectively made of materials having different hardnesses.

Further, the rotating member is made of an aluminum alloy, and the movable member is made of brass.

The knob structure of the present invention is provided with a movable member between the rotating member and the fixing member, and the first damping grease is disposed between the movable member and the fixed member, and the first portion is disposed between the rotating member and the movable member The second damping grease is disposed such that the damping amounts of the first damping grease and the second damping grease are different. When the pressure of the rotating member and the fixing member on the damping grease is small, the second damping layer serves as a main damping The buffering effect, when the pressure of the rotating member and the fixing member on the damping grease is large, the first damping layer plays a main damping buffering effect, and expands the damping adjustment range of the knob structure. At the same time, even if the knob structure works under different pressures, since the first damping grease layer and the second damping grease layer can respectively adapt to different working pressures to play a damping buffer, the rotating member can still be relatively fixed. Keeping the rotation smoothly facilitates precise adjustment of the rotation angle of the rotating member, so that the focus remote controller to which the knob structure is applied can accurately control the focus of an external camera.

DRAWINGS

FIG. 1 is a structural block diagram of a focus control remote controller according to an embodiment of the present invention.

2 is an assembled perspective view of the knob structure of the focus control remote controller shown in FIG. 1.

3 is a perspective exploded view of the knob structure of FIG. 2.

Figure 4 is a cross-sectional view taken along line IV-IV of the knob structure of Figure 2;

Main component symbol description

Focus remote control 200 Controller 210 Angle sensor 230 Knob structure 100 Fixed component 10 Fastener 12 Undertaking department 121 Connection 123 First receiving chamber 1231 Hole through 1233 First hole 1234 Second hole 1235 Step surface 1236 First receiving slot 1237 Socket 14 Inner kit 141,561 Roller 143,563, Outer kit 145,565, Flange 147,567 Connecting shaft 16 Socket 161 Abutment 163 Plug-in 165 Rotating component 30 Rotating piece 32 Zhou wall 321 Bottom wall 323 Second receiving chamber 324 Matching department 325 Second receiving slot 327 Adjustment component 50 Guide 52 Connection hole 521 Elastic part 54 Pressing piece 56 Adjustment piece 58

The invention will be further illustrated by the following detailed description in conjunction with the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or the component can be in the middle. When a component is considered to "connect" another component, it can be directly connected to another component or possibly a central component. When a component is considered to be "set to" another component, it can be placed directly on another component or possibly with a centered component. The terms "vertical," "horizontal," "left," "right," and the like, as used herein, are for illustrative purposes only.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

Referring to FIG. 1 , an embodiment of the present invention provides a focus control remote controller 200 for wirelessly connecting with a camera, a camera, and the like (not shown), and remotely controlling the camera to focus. . The focus control remote controller 200 includes a controller 210, an angle sensor 230 electrically connected to the controller 210, and a knob structure 100 electrically connected to the controller 210 and the angle sensor 230. The knob structure 100 is driven to rotate by a certain angle by an external force, and the angle sensor 230 can sense the rotation angle information of the knob structure 100, and transmit the rotation angle information to the controller 210, and the controller 210 issues a corresponding Control commands to control the focus of the camera.

2, the knob structure 100 includes a fixed assembly 10, a rotating assembly 30 rotatably coupled to the fixed assembly 10, and an adjustment assembly 50 disposed within the rotating assembly 30. The fixing assembly 10 and the rotating assembly 30 are filled with a damping grease, and the adjusting assembly 50 is used to adjust the pressing force of the fixing assembly 10 and the rotating assembly 30 against the damping grease.

Referring to FIG. 3 and FIG. 4 , the fixing component 10 includes a fixing component 12 , a sleeve component 14 disposed on the fixing component 12 , and a connecting shaft 16 disposed through the sleeve component 14 .

The fixing member 12 is used to mount the rotating assembly 30 and the adjusting assembly 50. In the present embodiment, the fixing member 12 is made of an aluminum alloy. The fixing member 12 includes a receiving portion 121 and a connecting portion 123 provided on the receiving portion 121. The receiving portion 121 has a substantially disk shape, and the connecting portion 123 is formed at a substantially central position on one side of the receiving portion 121.

The connecting portion 123 is recessed into a first receiving cavity 1231, and the first receiving cavity 1231 is configured to receive a part of the structure of the rotating component 30. The connecting portion 123 further defines a through hole 1233 at a substantially central portion of the first receiving cavity 1231 , and a first receiving groove 1237 is defined in a bottom wall of the first receiving cavity 1231 .

In the present embodiment, the through hole 1233 is a stepped hole, and includes a first hole 1234 communicating with the first receiving cavity 1231 and a second hole 1235 communicating with the first hole 1234. The aperture of the first hole 1234 is smaller than the aperture of the second hole 1235, so that a stepped surface 1236 is formed between the first hole 1234 and the second hole 1235.

In the embodiment, the first receiving groove 1237 is recessed on the bottom wall of the first receiving cavity 1231, and is formed by a plurality of annular concentric grooves and radial grooves. The first receiving groove 1237 is for accommodating the damping grease. It can be understood that the shape of the first receiving groove 1237 can be designed as a plurality of annular concentric grooves, or a plurality of radial grooves, or a plurality of concave points recessed in the bottom wall of the connecting portion 123, and a plurality of parallel sides. Strip grooves, bent grooves, curved grooves, or other irregular groove shapes.

The sleeve member 14 is received in the through hole 1233 for rotatably connecting the connecting shaft 16 to the fixing member 12. In the present embodiment, the sleeve 14 is a bearing that includes an inner sleeve 141, a roller 143, an outer sleeve 145, and a flange portion 147.

The inner sleeve 141 and the outer sleeve 145 are both substantially cylindrical and coaxially disposed in the through hole 1233. Further, the outer sleeve 145 is fixedly coupled to the inner wall of the first hole 1234, and the inner sleeve 141 is received in the outer sleeve 145 and is rotatable relative to the outer sleeve 145. A plurality of rollers 143 are disposed between the inner sleeve 141 and the outer sleeve 145. The flange portion 147 is formed at one end of the outer sleeve 145 and is received in the second hole 1235. The flange portion 147 is formed by the outer peripheral wall of the outer sleeve 145 protruding in the radial direction of the outer sleeve 145. When the outer sleeve 145 is installed in the first hole 1234, the flange portion 147 abuts against the stepped surface of the through hole 1233. On 1236.

The connecting shaft 16 is disposed through the sleeve 14 and is fixedly connected to the inner sleeve 141 of the sleeve 14 . The connecting shaft 16 is configured to mount the rotating assembly 30 and the adjusting assembly 50, and includes a socket portion 161 and abutting portion 163 and the plug portion 165 respectively formed at both ends of the socket portion 161.

The socket portion 161 has a substantially cylindrical shape and is received in the inner sleeve 141 and fixedly coupled to the inner sleeve 141. The abutting portion 163 is formed at one end of the socket portion 161 and is received in the second hole 1235 of the through hole 1233. The diameter of the abutting portion 163 is larger than the diameter of the socket portion 161. When the socket portion 161 is inserted into the inner sleeve 141, the abutting portion 163 abuts against the end of the inner sleeve 141. The insertion portion 165 is formed at one end of the socket portion 161 away from the abutting portion 163 for mounting the adjustment assembly 50. In the present embodiment, one end of the insertion portion 165 away from the socket portion 161 is formed with an externally threaded connection portion (not shown) for connecting a part of the structure of the adjustment assembly 50.

The rotating assembly 30 is rotatably coupled to the fixture 12 and includes a rotating member 32 and a movable member 34. The rotating member 32 is sleeved on the connecting shaft 16 and stacked on the fixing member 12. The movable member 34 is movably disposed between the rotating member 32 and the fixing member 12. Specifically in the illustrated embodiment, the rotating member 32 acts as a knob for the knob structure 100 for the user to control the focusing of the camera by rotating the knob.

In the present embodiment, the rotating member 32 is substantially in the shape of a cylindrical cylinder having a bottom wall, and includes a peripheral wall 321 and a bottom wall 323 formed at one end of the peripheral wall 321 .

The peripheral wall 321 has a substantially cylindrical shape and is disposed substantially coaxially with the through hole 1233 on the fixing member 12 and is used for receiving the adjustment assembly 50.

The bottom wall 323 is formed at one end of the peripheral wall 321 near the fixing member 12, and is superposed on the connecting portion 123 of the fixing member 12, so that the insertion portion 165 of the connecting shaft 16 passes through the substantially central position of the bottom wall 323 and protrudes into the peripheral wall. 321 so that the connecting shaft 16 is rotatably coupled to the rotating member 32. In the present embodiment, the bottom wall 323 is made of an aluminum alloy.

A second receiving cavity 324 is recessed in a side of the bottom wall 323 facing the connecting portion 123. In the embodiment, the second receiving cavity 324 is substantially a circular groove for receiving the connecting portion 123 of the fixing member 12 . When the bottom wall 323 is sleeved on the connecting shaft 16 and stacked on the fixing member 12, the connecting portion 123 is protruded and received in the second receiving cavity 324, and the peripheral wall of the second receiving cavity 324 is wrapped on the outer side of the connecting portion 123. . Further, when the bottom wall 323 is sleeved on the connecting shaft 16 and stacked on the fixing member 12, a gap is reserved between the bottom wall of the second receiving cavity 324 and the top end of the connecting portion 123 for the adjusting assembly 50. The relative distance between the rotating member 32 and the fixing member 12 is adjusted.

A fitting portion 325 is formed on the bottom wall of the second receiving cavity 324 , and a second receiving groove 327 is defined in the engaging portion 325 . The engaging portion 325 has a substantially annular shape and protrudes into the first receiving cavity 1231 and is spaced apart from the bottom wall of the first receiving cavity 1231. Specifically, in the embodiment of the drawings, the second receiving groove 327 is recessed in the periphery of the engaging portion 325 and is formed by two annular concentric grooves. The second receiving groove 327 is for receiving the damping grease. It can be understood that the shape of the second receiving groove 327 can be designed as a plurality of radial grooves, or a plurality of annular concentric grooves and radial grooves are alternately formed, or a plurality of concave points recessed on the engaging portion 325. Or other irregular groove shapes.

The movable member 34 has a substantially annular sheet shape and is disposed between the bottom wall of the first receiving cavity 1231 of the fixing member 12 and the engaging portion 325 of the rotating member 32. In the present embodiment, the movable member 34 is made of brass.

The first damping grease is filled between the movable member 34 and the bottom wall of the first receiving cavity 1231 to form a first damping grease layer (not shown). The first damping grease has a first damping characteristic, and specifically, the first damping characteristic is expressed as damping and viscosity of the first damping grease.

A second damping grease is filled between the movable member and the fitting portion 325 to form a second damping grease layer (not shown). The second damping grease has a second damping characteristic, and specifically, the second damping characteristic is expressed as damping and viscosity of the second damping grease. In the embodiment, the damping of the first damping grease is greater than the damping of the second damping grease. It can be understood that the damping of the first damping grease can be less than the damping of the second damping grease. The first damping grease and the second damping grease are filled between the rotating member 32 and the fixing member 12 for lubricating and buffering between the rotating member 32 and the fixing member 12, so that the rotating member 32 can smoothly rotate. The knob structure 100 has a better turning feel to facilitate precise adjustment of the rotation angle of the knob structure 100, thereby enabling precise control of the focus of the camera.

The adjusting component 50 is disposed at one end of the insertion portion 165 received in the peripheral wall 321 for adjusting the relative distance between the fixing member 12 and the rotating member 32, thereby adjusting the fixing member 12 and the rotating member 32 to the first damping grease. The pressure of the layer and the second damping grease layer. The adjustment assembly 50 includes a guide member 52 and an elastic member 54, a pressing member 56 and an adjustment member 58 disposed on the guide member 52.

The guide member 52 has a substantially columnar shape, and a connecting hole 521 is formed near one end of the insertion portion 165. An internal thread connection portion (not shown) is formed in the connection hole 521 for screwing with the external thread connection portion of the insertion portion 165 to fix the guide member 52 to the connection shaft 16 . The outer circumference of the guide member 52 is formed with an external thread (not shown) for connection with the adjustment member 58.

The elastic member 54 is movably sleeved on the guiding member 52, and one end thereof abuts against the bottom wall 323 of the rotating member 32. In the present embodiment, the elastic member 54 is a coil spring. It can be understood that the elastic member 54 can be other elastic members such as a spring piece, an elastic sleeve made of an elastic material, or the like.

The pressing member 56 is movably sleeved on the guiding member 52 and located at one end of the elastic member 54 away from the bottom wall 323. One end of the pressing member 56 abuts against the end of the elastic member 54, so that both ends of the elastic member 54 abut against the bottom wall 323 and the pressing member 56, respectively. In the present embodiment, the pressing member 56 is a bearing. The structure of the abutting member 56 is substantially the same as that of the sleeve member 14, which also includes an inner sleeve 561, a roller 563, an outer sleeve 565, and a flange portion 567. The outer sleeve 564 is inserted into the elastic member 54, and the flange portion 567 is formed at one end of the outer sleeve 565 away from the bottom wall 323 and abuts against the end of the elastic member 54.

The adjusting member 58 is sleeved on the guiding member 52 and located at one end of the pressing member 56 away from the elastic member 54 and screwed with the external thread of the guiding member 52. One end of the adjusting member 58 abuts against the inner sleeve 561 of the pressing member 56. By rotating the adjusting member 58, the adjusting member 58 is pushed against the pressing member 56 toward the bottom wall 323 of the rotating member 32, and the convex portion 56 is convex. The edge portion 567 presses the elastic member 54, and the elastic member 54 is compressed. Since the connecting shaft 16 is fixedly connected to the fixing member 12 through the sleeve member 14 and the flange portion 147 of the sleeve member 14 is abutted against the fixing member 12, the elastic member 54 and the sleeve member 14 can respectively respectively face the bottom wall 323 and The fixing member 12 applies pressure, so that the relative distance between the bottom wall 323 and the fixing member 12 is reduced, thereby causing the pressure of the bottom wall 323 and the fixing member 12 against the first damping grease layer and the second damping grease layer. Increase.

When assembling the knob structure 100 of the embodiment of the present invention, first, the sleeve member 14 is sleeved on the connecting shaft 16, and the connecting shaft 16 is passed through the through hole 1233, so that the outer sleeve 145 and the fixing member 12 of the sleeve member 14 are assembled. Fixed connection. Next, the first damping grease is coated on the bottom wall of the first receiving cavity 1231 of the fixing member 12, and the movable member 34 is installed in the first receiving cavity 1231, so that the movable member 34 covers the first damping. Grease to form the first damping grease layer. Then, the second damping grease is coated on the bottom wall of the second receiving cavity 324 of the rotating member 32, so that the second damping grease covers the fitting portion 325. The rotating member 32 is sleeved on the connecting shaft 16, so that the peripheral wall of the second receiving cavity 324 is wrapped around the outer side of the connecting portion 123, and the engaging portion 325 protrudes into the first receiving cavity 1231 of the fixing member 12, and cooperates The portion 325 corresponds to the movable member 34 such that the second damping grease layer is formed between the engaging portion 325 and the movable member 34. Finally, the guiding member 52 is connected to the insertion portion 165 of the connecting shaft 16, and the elastic member 54, the pressing member 56 and the adjusting member 58 are sequentially sleeved on the guiding member 52.

When the knob structure 100 of the embodiment of the present invention is used, the rotation angle of the knob structure 100 can be adjusted by rotating the rotating member 32. If the damping between the rotating member 32 and the fixing member 12 is too large or too small, the adjusting member 58 can be relatively moved away from or close to the bottom wall 323 in the axial direction of the guiding member 52 by rotating the adjusting member 58, and the elastic member 54 is adjusted to the bottom. The pressure of the wall 323, thereby adjusting the relative distance between the rotating member 32 and the fixing member 12, thereby adjusting the pressure of the bottom wall 323 and the fixing member 12 on the first damping grease layer and the second damping grease layer, and finally realizing Damping adjustment between the rotating member 32 and the fixing member 12.

Specifically, if there is a requirement for a small rotational damping between the rotating member 32 and the fixing member 12, the adjusting member 58 is rotated away from the bottom wall 323, so that the engaging portion 325 and the fixing member 12 face the first damping grease. The pressure of the layer and the second damping grease layer is reduced. When the rotating member 32 rotates relative to the fixing member 12, since the damping of the first damping grease is large, the damping of the second damping grease, the movable member 34 is stuck to the fixing member 12 through the first damping layer, and then rotates. The member 32 rotates relative to the movable member 34 and the fixed member 12, and the second damping layer functions as a primary damping buffer.

If a large rotational damping between the rotating member 32 and the fixing member 12 is required, the adjusting member 58 is rotated to be relatively close to the bottom wall 323, so that the engaging portion 325 and the fixing member 12 are opposite to the first damping grease layer and the The pressure of the second damping grease layer increases. Since the damping of the second damping grease is greater than the damping of the first damping grease, the second damping grease is first squeezed into the second receiving groove 327 during the pressure adjustment of the rotating member 32, the fitting portion 325 Directly resisted on the movable member 34. When the rotating member 32 rotates relative to the fixing member 12, the friction between the engaging portion 325 and the movable member 34 is dry friction, and the frictional force is relatively large, and the movable member 34 and the fixing member 12 are due to the first damping layer. The friction between the two is relatively small, so that the movable member 34 is stuck on the engaging portion 325 of the rotating member 32, and the rotating member 32 is rotated relative to the movable member 34 and the fixing member 12, the first damping The layer acts as the primary damping buffer.

If it is desired to reduce the rotational damping between the rotating member 32 and the fixing member 12 in the above state, the adjusting member 58 is rotated away from the bottom wall 323, and an external force is applied to the rotating member 32 so that the engaging portion 325 is relatively far from the fixing member 12. Then, a gap occurs between the fitting portion 325 and the movable member 34, and the second damping grease is filled again into the gap between the fitting portion 325 and the movable member 34 due to the negative pressure. At this time, the rotating member 32 rotates relative to the movable member 34 and the fixed member 12, and the second damping layer functions as a main damping buffer.

The knob structure 100 of the present invention is provided with a movable member 34 between the rotating member 32 and the fixing member 12, and the first damping grease is disposed between the movable member 34 and the fixing member 12, and the rotating member 32 and the movable member are disposed. The second damping grease is disposed between the 34, and the damping weights of the first damping grease and the second damping grease are different, and when the pressure of the rotating member 32 and the fixing member 12 on the damping grease is small, The second damping layer functions as a main damping buffer. When the pressure of the rotating member 32 and the fixing member 12 on the damping grease is large, the first damping layer plays a main damping buffer function, and the knob structure is enlarged. The damping adjustment range of 100. Meanwhile, even if the knob structure 100 operates under different pressures, since the first damping grease layer and the second damping grease layer can respectively adapt to different working pressures to function as damping buffers, the rotating member 32 can still be relatively The fixing member maintains a smooth rotation, which facilitates precise adjustment of the rotation angle of the rotating member 32, thereby enabling precise control of the focusing of the photographing device.

In the present embodiment, the fixing member 12 and the bottom wall 323 of the rotating member 32 are made of aluminum alloy, the movable member 34 is made of brass, and the fixing member 12, the rotating member 32 and the movable member 34 have different hardness or different friction coefficients. The purpose of the material is to ensure that when the damping grease is filled between the fixing member 12 and the movable member 34, the friction between the fixing member 12 and the movable member 34 is compared with the friction without the damping grease. It is smaller so that the first damping grease layer and the second damping grease layer can be respectively applied to different working pressures.

It can be understood that the fixing member 12 and the bottom wall 323 of the rotating member 32 can be made of other metal materials than aluminum alloy, such as steel or other alloys, and can also be made of plastic or rubber materials. Similarly, the movable member 34 may be made of other materials than brass, such as tin bronze, polyoxymethylene (Saigang) or rubber, etc., so that the hardness of the fixing member 12 and the movable member 34 are different, and the rotating member 32 is The hardness between the movable members 34 is also different, thereby ensuring that when the damping grease is filled between the fixing member 12 and the movable member 34, the friction between the fixing member 12 and the movable member 34 is compared with that without the damping grease. The friction is smaller so that the first damping grease layer and the second damping grease layer can be respectively applied to different working pressures.

Even when the frictional force between the fixing member 12 and the movable member 34, between the rotating member 32 and the movable member 34 is filled with the frictional force smaller than that without the damping grease, the fixing is fixed. The member 12, the rotating member 32 and the movable member 34 can be made of the same material.

It can be understood that the number of the movable members 34 may be one or more. When the number of the movable members 34 is plural, between the mating portions 325 of the rotating member 32 and the bottom of the first receiving cavity 1231 of the fixing member 12 The damping grease is disposed between the walls and between each two adjacent movable members 34 to form a damping grease layer, and the damping of each damping grease layer is different in size, thereby increasing the rotational damping of the knob structure 100. The adjustment range can also enable the knob structure 100 to maintain smooth rotation under different pressures.

For example, when the number of the movable members 34 is two, they may be the first movable member and the second movable member, respectively. The movable member is disposed adjacent to the fixing member 12, and the first damping member is disposed between the first movable member and the bottom wall of the first receiving cavity 1231; the second movable member is disposed adjacent to the engaging portion 325. The second damping grease is disposed between the second movable member and the engaging portion 325. When the rotating member 32 is rotatably coupled to the fixing member 12, the first movable member is substantially parallel to the second movable member, and a third portion is disposed between the first movable member and the second movable member. Damping grease. Wherein the damping of the third grease is greater than the damping of the second damping grease and less than the damping of the first damping grease. When the pressure of the damping member 32 and the fixing member 12 are relatively small, the rotating member 32 rotates relative to the fixing member 12, since the damping of the second damping grease is smaller than the first damping grease and the third damping Damping of the grease, the first movable member is stuck to the fixing member 12 by the first damping grease, and the second movable member is stuck to the first movable member by the third damping grease, The rotating member 32 rotates relative to the second movable member, the first movable member and the fixed member 12, and the second damping grease serves as a main damping buffer.

When the pressure of the damping member 32 and the fixing member 12 increases to a certain value, the second damping grease is first pressed into the second receiving groove 327 at the rotating member 32, so that the engaging portion 325 Directly resisting the second movable member, at this time, the friction between the engaging portion 325 and the second movable member is abruptly increased, and between the second movable member and the first movable member The relative frictional force is small due to the presence of the third damping grease, and the damping of the first damping grease is greater than the third damping grease, and the first movable member is fixed to the fixed by the first damping grease On the piece 12, therefore, the rotating member 32 drives the second movable member to rotate relative to the first movable member and the fixed member 12. The third damping grease serves as a main damping buffer.

By the way, when the pressure of the damping member 32 and the fixing member 12 continues to increase to a certain value, the second damping grease and the first damping grease are squeezed to the corresponding rotation of the rotating member 32. In the receiving groove, the rotating member 32 drives the second movable member and the first movable member to rotate relative to the fixed member 12. The first damping grease serves as a main damping buffer. Similarly, the number of the movable members 34 may be three, four or more, which will not be described in detail in the present specification.

It can also be understood that when the number of the movable members 34 is plural, one of the plurality of movable members and the engaging portion 325 of the rotating member 32, the other of the plurality of movable members and the first of the fixing members 12 A damping grease is disposed between the bottom walls of the receiving cavity 1231 and between each two adjacent movable members to form a plurality of damping grease layers, and the damping of each damping grease layer may be different, thereby increasing the knob The adjustment range of the rotational damping of the structure 100 also enables the knob structure 100 to remain smoothly rotated under different pressures. For example, two damping grease layers of the plurality of damping grease layers have the same damping size, and the remaining damping grease layers have different damping capacities; or, three of the plurality of damping grease layers have a damping grease layer The damping is the same size, and the damping of the remaining damping grease layers is different; or the damping of the plurality of damping grease layers is other combinations, which will not be described in detail in this specification.

It can be understood that the elastic member 54 and the pressing member 56 can be omitted, and the adjusting member 58 is sleeved on the guiding member 52 and abuts against the bottom wall 323 of the rotating member 32, and is guided along the rotating adjusting member 58. The member 52 moves in the axial direction and moves against the rotating member 32, thereby adjusting the pressure of the rotating member 32 and the fixing member 12 against the damping grease.

It will be understood that the structure of the sleeve 14 is not limited to the bearing structure described above, and may be provided as other connection structures such that the connecting shaft 16 is rotatably coupled to the fixing member 12. For example, the sleeve 14 may be a sleeve having a flange portion 147 that is rotatably sleeved on the sleeve portion 161 of the connecting shaft 16, and the flange portion on the sleeve abuts against the fixing The step surface 1236 of the piece 12 is on. Even the sleeve 14 can be omitted, and the diameter of the abutting portion 163 of the connecting shaft 16 is larger than the diameter of the first hole 1234 of the through hole 1233 and smaller than the diameter of the second hole 1235, so that the connecting shaft 16 is passed through When the hole 1233 is bored, the abutting portion 163 abuts against the stepped surface 1236 of the fixing member 12. It can also be understood that when the connecting shaft 16 is disposed on the fixing member 12, the connection between the connecting member 16 and the fixing member 12 may be a fixed connection or a rotational connection; when the connecting shaft 16 passes through the bottom wall 323 of the rotating member 32, The connection between the rotating members 32 can be a sliding connection that is a rotation, and can also be a rotatable and slidable movable connection.

It can be understood that the structure of the pressing member 56 is not limited to the bearing structure described above, and may be provided as another pressing structure, so that the adjusting member 58 can push against the elastic member 54 through the pressing member 56, and the elastic member 54 is generated. The elastic deformation changes the pressure of the rotating member 32 and the fixing member 12 against the damping grease. For example, the pressing member 56 may be a sleeve having a flange portion 147 that is rotatably sleeved on the guide member 52, and the flange portion on the sleeve abuts against the stepped surface of the fixing member 12. On 1236. Even the pressing member 56 can be omitted, and the adjusting member 58 is directly pressed against the elastic member 54, and the pressure of the damping member by the rotating member 32 and the fixing member 12 is adjusted by the adjusting member 58 and the elastic member 54.

It can be understood that the fit between the adjusting member 58 and the guiding member 52 may not be limited to the threaded engagement described above, and may be other mating structures, so that the adjusting member 58 can be slid relative to the guiding member 52 under the driving of an external force, and It can be relatively fixed to the guiding member 52 after the external force is removed, so that the user can adjust the pressure between the rotating member 32 and the fixing member 12 by adjusting the mounting position of the adjusting member 58 with respect to the guiding member 52. .

For example, the adjustment member 58 and the guide member 52 are in a snap fit. Specifically, the guide member 52 is formed with a plurality of latching portions which are spaced apart from each other in the axial direction of the guide member 52. The adjusting member 58 is slidably disposed on the guide member 52, and an engaging portion is formed thereon. The engaging portion is engaged with one of the plurality of latching portions to position the adjusting member 58 on the guiding member 52. The adjusting member 58 can be adjusted by pushing the adjusting member 58 to separate the engaging portion from one of the plurality of the holding portions and engaging with the other of the plurality of the holding portions. The position of the guide member 52 is set to achieve the purpose of adjusting the pressure between the rotating member 32 and the fixing member 12. Further, the latching portion may be a recess recessed in the guiding member 52. Accordingly, the engaging portion is a latching protrusion formed on the adjusting member 58. Alternatively, the engaging portion and the adjusting portion may be configured to match the hook and the card slot.

It can be understood that the connecting shaft 16 and the guiding member 52 can be assembled and coupled together, or can be integrally formed, so that the guiding member 52 is disposed on the rotating member 32 and connected to the fixing member 12 through the connecting shaft 16, so that the adjusting member 58 can be The relative guide member 52 moves to adjust the pressure between the rotating member 32 and the fixing member 12.

In addition, those skilled in the art can make various other changes and modifications in accordance with the technical concept of the present invention, and all such changes and modifications are within the scope of the claims of the present invention.

Claims (62)

 A knob structure comprising a fixing member and a rotating member rotatably disposed on the fixing member, wherein the fixing member comprises a receiving portion, and the rotating member is disposed on the receiving portion, The knob structure further includes at least one movable member movably disposed between the fixing member and the rotating member, a first damping grease disposed between the at least one movable member and the fixing member, the at least one activity A second damping grease is disposed between the piece and the rotating member, and the damping amounts of the first damping grease and the second damping grease are different.  The knob structure according to claim 1, wherein the number of the movable members is plural, and the plurality of movable members are stackedly disposed between the fixing member and the rotating member, the first a damping grease is disposed between one of the plurality of movable members adjacent to the fixing member and the fixing member, and the second damping grease is disposed in one of the plurality of movable members adjacent to the rotating member Between the rotating members, a third damping grease is disposed between each adjacent two movable members to form a plurality of damping grease layers.  The knob structure according to claim 2, wherein the plurality of damping grease layers have different damping capacities.  The knob structure according to claim 2, wherein the plurality of damping grease layers have the same damping magnitude.  The knob structure according to claim 2, wherein a part of the plurality of damping grease layers has the same damping size, and the other damping grease layer has a different damping amount.  The knob structure according to claim 1, wherein said knob structure further comprises an adjustment assembly, said adjustment assembly comprising a guide member coupled to said fixing member and said rotating member and movably disposed therein The adjusting member on the guiding member is capable of driving the rotating member to be driven by an external force to adjust the pressure between the movable member and the rotating member and the fixing member.  The knob structure according to claim 6, wherein the adjusting member and the guiding member are screwed, and by rotating the adjusting member, the adjusting member can be adjusted relative to the guiding member. Set the location.  The knob structure according to claim 6, wherein the adjusting member is slidably disposed on the guiding member, and the guiding member is formed with a plurality of holding portions, and the adjusting member is formed with An engaging portion of the latching portion, wherein the adjusting member is selectively drivable with one of the plurality of latching portions under external force driving to adjust the adjusting member relative to the The mounting position of the guide.  The knob structure according to claim 8, wherein one of the latching portion and the engaging portion is a groove, and the other is a latching protrusion that is engaged with the groove.  The knob structure according to claim 6, wherein the adjusting assembly further comprises an elastic member, the elastic member is disposed between the adjusting member and the rotating member, and the adjusting member is driven by an external force The elastic force of the elastic member can be adjusted to adjust the pressure between the movable member and the rotating member and the fixing member, respectively.  The knob structure according to claim 10, wherein the adjusting assembly further comprises a pressing member, the pressing member abutting between the elastic member and the adjusting member.  The knob structure according to claim 11, wherein the elastic member is a coil spring sleeved on the guide member, and the pressing member comprises an outer sleeve sleeved on the guide member and formed a flange on the outer sleeve, the outer sleeve being inserted into the elastic member such that the flange abuts against an end of the elastic member.  The knob structure according to claim 12, wherein said pressing member further comprises an inner sleeve rotatably disposed between said guide member and said outer sleeve, and said inner sleeve and said inner sleeve a roller between the outer sleeves; the adjustment member abuts against the inner sleeve.  The knob structure according to claim 6, wherein the rotating member comprises a peripheral wall and a bottom wall formed at one end of the peripheral wall, the bottom wall is disposed adjacent to the fixing member, and the bottom wall is provided with a fitting The movable member is disposed between the fixing member and the engaging portion.  The knob structure according to claim 14, wherein the knob structure further comprises a connecting shaft, the connecting shaft is disposed through the fixing member and the bottom wall, and the guiding member is disposed on the connecting shaft on.  The knob structure according to claim 15, wherein the fixing member is provided with a through hole, and the through hole is provided with a sleeve; the connecting shaft is disposed through the sleeve And connected to the bottom wall, the connecting shaft is rotatably connected to the fixing member through the sleeve.  The knob structure according to claim 16, wherein the through hole is a stepped hole and has a stepped surface, and the sleeve comprises an outer sleeve sleeved on the connecting shaft and formed on the a flange on the outer sleeve, the outer sleeve being received in the through hole, the flange being pressed against the stepped surface of the through hole.  The knob structure according to claim 17, wherein said sleeve further comprises an inner set disposed between said connecting shaft and said outer sleeve, and said inner set and said outer set a roller between the connecting shaft penetrating the inner sleeve and being fixedly coupled to the inner sleeve.  The knob structure according to claim 18, wherein the connecting shaft comprises a socket portion and a plug portion and an abutting portion respectively formed at two ends of the socket portion, the socket portion and the inner portion The sleeve is fixedly connected, the insertion portion is disposed on the bottom wall and connected to the guiding member, the abutting portion has a diameter larger than a diameter of the socket portion, and the abutting portion and the inner sleeve are The ends abut.  The knob structure according to claim 14, wherein the receiving portion is provided with a connecting portion, the connecting portion is provided with a first receiving cavity, and the movable member is received in the first receiving cavity. The mating portion protrudes into the first receiving cavity.  The knob structure according to claim 20, wherein the bottom wall of the first receiving cavity is provided with a first receiving groove, and the first receiving groove is for receiving the first damping grease.  The knob structure according to claim 21, wherein the first receiving groove comprises at least one of: a plurality of concentric annular grooves, a radial groove, a plurality of concave points, and a plurality of elongated concave portions. Slot, multiple curved grooves.  The knob structure according to claim 21, wherein a side of the bottom wall facing the fixing member is provided with a second receiving cavity, and the connecting portion is protruded and received in the second receiving cavity. The engaging portion is formed to protrude from the bottom wall of the second receiving cavity toward the first receiving cavity.  The knob structure according to claim 23, wherein the bottom wall of the second receiving cavity is provided with a second receiving groove, and the second receiving groove is for receiving the second damping grease.  The knob structure according to claim 24, wherein the second receiving groove comprises at least one of: a plurality of concentric annular grooves, a radial groove, a plurality of concave points, and a plurality of elongated concave portions. Slot, multiple curved grooves.  The knob structure according to any one of claims 1 to 25, wherein a frictional force when the first damping grease is disposed between the fixing member and the movable member is smaller than the fixing member and The frictional force when the first damping grease is not disposed between the movable members.  The knob structure according to claim 26, wherein said fixing member and said movable member are respectively made of materials having different hardnesses.  The knob structure according to claim 27, wherein said fixing member is made of an aluminum alloy, and said movable member is made of brass.  The knob structure according to any one of claims 1 to 25, wherein a frictional force when the second damping grease is disposed between the rotating member and the movable member is smaller than the rotating member and The friction force when the second damping grease is not disposed between the members.  The knob structure according to claim 29, wherein said rotating member and said movable member are respectively made of materials of different hardnesses.  A knob structure according to claim 30, wherein said rotating member is made of an aluminum alloy, and said movable member is made of brass.  A focus control remote controller includes a controller and an angle sensor electrically connected to the controller, wherein the focus control remote controller further comprises a knob structure, the knob structure comprises a fixing member and is rotatably disposed at a rotating member on the fixing member, the fixing member includes a receiving portion, the rotating member is disposed on the receiving portion; the knob structure further comprises a movable arrangement between the fixing member and the rotating member At least one movable member; a first damping grease is disposed between the at least one movable member and the fixing member, and a second damping grease is disposed between the at least one movable member and the rotating member; Wherein the first damping grease and the second damping grease have different damping sizes, the angle sensor is electrically connected to the knob structure, and is used for sensing rotation angle information of the rotating member, and the The rotation angle information is communicated to the controller, which issues a corresponding control command.  The focus control remote controller according to claim 32, wherein the number of the movable members is plural, and the plurality of movable members are stackedly disposed between the fixing member and the rotating member, a first damping grease is disposed between one of the plurality of movable members adjacent to the fixing member and the fixing member, and the second damping grease is disposed in one of the plurality of movable members adjacent to the rotating member A third damping grease is disposed between each of the two adjacent movable members to form a plurality of damping grease layers.  A focus control remote controller according to claim 33, wherein said plurality of damping grease layers have different damping sizes.  A follower remote controller according to claim 33, wherein said plurality of damping grease layers have the same damping magnitude.  The focus control remote controller according to claim 33, wherein a part of the plurality of damping grease layers has the same damping amount of the damping grease layer, and the other damping grease layer has a different damping amount.  A focus control remote controller according to claim 32, wherein said knob structure further comprises an adjustment assembly, said adjustment assembly comprising a guide member coupled to said fixing member and said rotating member and movably disposed An adjusting member on the guiding member, the adjusting member is capable of driving the rotating member to be driven by an external force to adjust a pressure between the movable member and the rotating member and the fixing member.  A focus control remote controller according to claim 37, wherein said adjusting member and said guiding member are screwed, and said adjusting member is adjustable relative to said guiding member by rotating said adjusting member Installation location.  A follower remote controller according to claim 37, wherein said adjusting member is slidably disposed on said guiding member, and said guiding member is formed with a plurality of holding portions formed on said adjusting member Having a latching portion that is engaged with the latching portion, the adjusting member is selectively engageable with one of the plurality of latching portions under external force driving to adjust the adjusting member relative to The mounting position of the guide member.  The focus control remote controller according to claim 39, wherein one of the holding portion and the engaging portion is a groove, and the other is a holding protrusion that is engaged with the groove. Start.  A follower remote controller according to claim 37, wherein said adjusting assembly further comprises an elastic member, said elastic member being disposed between said adjusting member and said rotating member, said adjusting member being externally The elastic force of the elastic member can be adjusted under driving, thereby adjusting the pressure between the movable member and the rotating member and the fixing member, respectively.  A follower remote controller according to claim 41, wherein said adjusting assembly further comprises a pressing member, said pressing member abutting between said elastic member and said adjusting member.  The focus control remote control according to claim 42, wherein the elastic member is a coil spring sleeved on the guide member, and the pressing member comprises an outer sleeve sleeved on the guide member. And a flange formed on the outer sleeve, the outer sleeve being inserted into the elastic member such that the flange abuts against an end of the elastic member.  A focus control remote controller according to claim 43, wherein said pressing member further comprises an inner sleeve rotatably disposed between said guide member and said outer sleeve, and said inner sleeve and said inner sleeve a roller between the outer sleeves; the adjustment member abuts against the inner sleeve.  A follower remote controller according to claim 37, wherein said rotating member comprises a peripheral wall and a bottom wall formed at one end of said peripheral wall, said bottom wall being disposed adjacent said fixing member, said bottom wall being disposed There is a fitting portion, and the movable member is disposed between the fixing member and the fitting portion.  The focus control remote control according to claim 45, wherein the knob structure further comprises a connecting shaft, the connecting shaft is disposed through the fixing member and the bottom wall, and the guiding member is disposed on the Connected to the shaft.  The focus control remote controller according to claim 46, wherein the fixing member is provided with a through hole, and the through hole is provided with a sleeve; the connecting shaft is disposed through the sleeve The connecting member is connected to the bottom wall, and the connecting shaft is rotatably connected to the fixing member through the sleeve.  The focus control remote controller according to claim 47, wherein the through hole is a stepped hole and has a stepped surface, and the sleeve comprises an outer sleeve sleeved on the connecting shaft and formed on a flange on the outer sleeve, the outer sleeve being received in the through hole, the flange being pressed against the stepped surface of the through hole.  A focus control remote controller according to claim 48, wherein said sleeve further comprises an inner sleeve disposed between said connecting shaft and said outer sleeve, and said inner kit and said a roller between the outer sleeves; the connecting shaft passes through the inner sleeve and is fixedly coupled to the inner sleeve.  The focus control remote control according to claim 49, wherein the connecting shaft comprises a socket portion and a plug portion and an abutting portion respectively formed at two ends of the socket portion, the socket portion and the socket portion The inner sleeve is fixedly connected, the plug portion is disposed on the bottom wall and connected to the guiding member, the abutting portion has a diameter larger than a diameter of the sleeve portion, and the abutting portion and the inner portion The ends of the kit abut.  The focus control remote control according to claim 45, wherein the receiving portion is provided with a connecting portion, the connecting portion is provided with a first receiving cavity, and the movable member is received in the first receiving cavity The fitting portion protrudes into the first receiving cavity.  The focus control remote control according to claim 51, wherein a first receiving groove is defined in a bottom wall of the first receiving cavity, and the first receiving groove is configured to receive the first damping grease.  The focus control remote controller according to claim 52, wherein the first receiving groove comprises at least one of: a plurality of concentric annular grooves, a radial groove, a plurality of concave points, and a plurality of strips. Shaped groove, multiple curved grooves.  The focus control remote controller according to claim 52, wherein a side of the bottom wall facing the fixing member is provided with a second receiving cavity, and the connecting portion is protruded and received in the second receiving cavity. The engaging portion is formed to protrude from the bottom wall of the second receiving cavity toward the first receiving cavity.  The focus control remote control according to claim 54, wherein a second receiving groove is defined in the bottom wall of the second receiving cavity, and the second receiving groove is configured to receive the second damping grease.  The follow-up remote controller according to claim 55, wherein the second receiving groove comprises at least one of: a plurality of concentric annular grooves, a radial groove, a plurality of concave points, and a plurality of strips. Shaped groove, multiple curved grooves.  The focus control remote controller according to any one of claims 32 to 56, wherein a frictional force when the first damping grease is disposed between the fixing member and the movable member is smaller than the fixing The frictional force when the first damping grease is not disposed between the piece and the movable member.  A follower remote controller according to claim 57, wherein said fixing member and said movable member are respectively made of materials having different hardnesses.  A follower remote controller according to claim 58, wherein said fixing member is made of an aluminum alloy, and said movable member is made of brass.  The focus control remote controller according to any one of claims 32 to 56, wherein a frictional force when the second damping grease is disposed between the rotating member and the movable member is smaller than the rotation The frictional force when the second damping grease is not disposed between the piece and the piece.  A bokeh focus remote controller according to claim 60, wherein said rotating member and said movable member are respectively made of materials having different hardnesses.  A follower remote controller according to claim 61, wherein said rotating member is made of an aluminum alloy, and said movable member is made of brass.

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