CN206634138U - Quick-release device for bicycle wheel - Google Patents

Abstract

A quick release device for a bicycle wheel includes a spindle, a wrench, at least one key, a limiting member and an elastic member. The mandrel comprises a rod body and a shaft sleeve, wherein the shaft sleeve is sleeved at one end of the rod body and is provided with a plurality of first grooves. The wrench has a sleeve sleeved on the sleeve and can move between a first position and a second position. The sleeve is provided with at least one second groove; when the sleeve is at the first position, the key is positioned in the first groove and the second groove; when the sleeve is at the second position, the key is separated from the first groove. The limiting piece is combined with the mandrel and comprises a stopping part. The elastic piece is arranged between the key and the stopping part. Therefore, the application strength and the service life are improved while the light weight characteristic of the quick release device is maintained.

Description

Quick release device for bicycle wheels

technical field

The utility model relates to an assembly device between a bicycle wheel and a vehicle frame; in particular, it refers to a quick disassembly device for quickly installing or disassembling the wheel on the vehicle frame.

Background technique

The quick release device for the bicycle wheel is an assembly device that can quickly fix the wheel to the frame (front fork or rear fork), or detach the wheel from the frame.

Generally, there are two types of quick release devices. One of the quick release devices has an eccentric cam on the wrench. The user can use the wrench to make the eccentric cam tighten or loosen. In another common quick-release device, one end of the mandrel is provided with an external thread section to be screwed into the internal thread hole on the vehicle frame; the other end of the mandrel is the operating end. The wrench is combined with the operating end of the mandrel, and can drive the mandrel to rotate when rotating, so as to drive the outer threaded section of the mandrel to loosen or tighten the inner threaded hole on the frame, so as to reduce or enlarge the wheel and the car. The distance between the frames can realize the purpose of loading and unloading the wheels on the frame.

However, the above-mentioned quick release device combined with the frame by screwing, after the wheel is firmly installed on the frame, the position of the wrench is often rotated to an inappropriate position, and the angle cannot be changed independently, and it is easy to be out of touch with the surroundings. Components interfere, or create riding safety issues. In order to improve the aforementioned problems, some operators have developed an improved quick release device. After the wheels and the frame are tightly assembled, the wrench can still be rotated independently without interlocking other components. For example, please refer to the "button type adjustable angle quick release" disclosed in TW201540595. One end of the quick-release mandrel of this case is combined with a quick-release handle, and the other end is screwed with a nut. A return spring and a button are accommodated inside the quick release handle, wherein the button is provided with a ratchet gear meshing with an inner ratchet ring on the inner wall of the quick release handle, and the button is combined with the quick release mandrel through a screw. Once the tight assembly of the wheel is completed, the button can be pressed to disengage the ratchet teeth of the button from the inner ratchet ring, so that the quick release handle can freely rotate to adjust the angle, and then use the elastic force of the return spring to make the button and the quick release Restore the meshing relationship between the dismantled handles.

In order to meet the lightweight requirements of bicycles, most of the quick-release devices are made of lightweight aluminum alloy. However, the strength of the material is poor, and it is easy to cause the components to wear each other during the actuation process. As a result, gaps are generated, resulting in loose configuration relationships and affecting Linkage effect, the aforementioned situation is particularly obvious between ratchets and ratchets. If it is made of a high-strength material (for example: steel), it will not be able to meet the lightweight requirements due to its weight.

Utility model content

In view of this, the purpose of the present invention is to provide a quick release device for bicycle wheels, which has the characteristics of application strength and prolonging service life under the conditions of convenient operation and light weight.

In order to achieve the above object, a quick release device for a bicycle wheel provided by the utility model includes a mandrel, a wrench, at least one key, a limiting member and an elastic member; the mandrel includes a coupling section, and its outer ring The surface is provided with a plurality of first grooves parallel to the axial direction of the mandrel; the wrench has a sleeve rotatably sleeved on the joint section, and the inner ring surface of the sleeve has at least one second groove , and can be opposite to the first groove; the sleeve moves between a first position and a second position along the axial direction of the mandrel on the joint section, and the sleeve is located at the first position When the second groove is opposite to the first groove; when the key is at the first position of the sleeve, the key is located in the first groove and the second groove; the sleeve is located in In the second position, the key breaks away from a first groove; the limiting member is combined with the joint section of the mandrel, and includes a stopper; the elastic member is arranged between the key and the stopper , used to drive the key to move into the first groove.

Wherein the sleeve has a blocking portion, and the key is located between the blocking portion and the elastic member.

Wherein the mandrel includes a rod body and a shaft sleeve; the shaft sleeve is sheathed on one end of the rod body in a non-rotatable manner relative to the rod body to form the joint section, and the first grooves are arranged on the outside of the shaft sleeve on the torus.

Wherein the outer ring surface of the sleeve is provided with a plurality of guide grooves with the same number as the first grooves and parallel to the axial direction of the mandrel, and each of the guide grooves communicates with each of the first grooves; When the sleeve is at the second position, the key is located in the guiding groove and the second groove.

Wherein, the rod body is covered with an inner screw hole on one end surface of the shaft sleeve, and the restricting member is composed of a bolt and a restricting cylinder; the restricting cylinder is sleeved on the head of the bolt, and the bolt locks It is arranged in the internally threaded hole; the outer periphery of the restricting cylinder has a retaining wall, which forms the stop portion of the restricting member.

Wherein, a spacer is also included, which is located between the elastic member and the key.

Wherein the elastic member is a spring, and its two ends respectively abut against the stop portion and one side surface of the gasket, and the other side surface of the gasket abuts against the key.

The effect of the utility model is to provide users with convenient operation, and improve the application strength and service life of the quick release device on the basis of maintaining the light weight.

Description of drawings

Fig. 1 is a perspective view of a quick release device in a preferred embodiment of the present invention.

FIG. 2 is an exploded perspective view of the quick release device shown in FIG. 1 .

Figure 3 is a partially enlarged view of the mandrel.

Fig. 4 is a cross-sectional view along the line 4-4 in Fig. 1 , revealing the relative relationship between the various components when the wrench is in the first position.

FIG. 5 is a sectional view similar to FIG. 4 , showing the relative relationship between various components when the wrench is in the second position.

Fig. 6 is a cross-sectional view along the line 6-6 in Fig. 1 , revealing the relative relationship between the various components when the wrench is in the first position.

Fig. 7 is similar to Fig. 6, and is a cross-sectional view of the wrench rotating with the axis of the mandrel as the rotation axis, and reveals the relative relationship between the components.

【Main components】

100 quick release device

10 mandrels

12 Rod body 121 First part 122 Second part

122a Internally threaded hole 122b Blocking face 14 Gasket

16 Bushing 161 Flat 162 First groove

163 guide groove

20 wrench

22 Sleeve 221 Second groove 222 Stop

24 Shank

30 keys

40 limit pieces

42 Bolt 44 Restricting Barrel 441 Ring

442 Barring

50 elastic pieces

60 Spacers

P1 first position P2 second position

detailed description

In order to illustrate the utility model more clearly, a preferred embodiment is given and detailed description is as follows in conjunction with the accompanying drawings. Please refer to Fig. 1 to Fig. 2, which is a quick release device 100 of a preferred embodiment of the present invention, including a mandrel 10, a wrench 20, a plurality of keys 30, a limiting member 40, an elastic member 50 and a Gasket 60. The quick release device 100 is an auxiliary structure for quickly coupling or detaching a wheel from a bicycle frame (front fork or rear fork). In this embodiment, a front fork (not shown) is taken as an example, and a fork rod of the front fork has an internally threaded hole.

One end of the mandrel 10 is a coupling section, and the mandrel 10 includes a rod body 12 , a backing ring 14 and a shaft sleeve 16 . The rod body 12 is combined on the front fork, and the rod body 12 has a body and a first part 121 and a second part 122 located at both sides of the body; the first part 121 is an external thread segment, and fit in the internally threaded hole of the front fork; the outer diameter of the second part 122 is smaller than the outer diameter of the body part, and one end surface of the second part 122 has an internally threaded hole 122a extending along the axial direction.

The backing ring 14 is sheathed on the second part 122 of the rod body 12 and adjacent to the body, the backing ring 14 is forced to abut against the side of the other fork rod of the front fork, so that the quick release device 100 creates a tight connection effect with this fork.

The shaft sleeve 16 is sleeved on the second portion 122 in a non-rotatable manner relative to the rod body 12 to form the joint section. Preferably, the inner surface of the shaft sleeve 16 is provided with two planes 161 . The outer surface of the second portion 122 is provided with two retaining surfaces 122 b abutting against the two planes 161 , so that the sleeve 16 can drive the rod body 12 to rotate together when it rotates around the shaft center of the rod body 12 . As shown in FIG. 3 , the outer ring surface of the sleeve 16 is provided with a plurality of first grooves 162 and guide grooves 163 parallel to the axial direction of the mandrel 10 , wherein the number of the first grooves 162 is the same as The guide grooves 163 , the first grooves 162 and the guide grooves 163 are arc-shaped long grooves communicating with each other, and the bottoms of the grooves are smoothly connected.

The wrench 20 has a sleeve 22 and a handle 24, wherein the sleeve 22 is rotatably sleeved on the shaft sleeve 16, and its inner ring surface is concavely provided with a plurality of second grooves 221, and can They are respectively opposite to the first grooves 162 . In addition, one end of the sleeve 22 has a blocking portion 222 protruding from the inner ring surface of the sleeve 22 . The sleeve 22 can move between a first position P1 and a second position P2 on the shaft sleeve 16 along the axial direction of the spindle 10, wherein, when the sleeve 22 is located at the first position P1, each The second groove 221 can be opposite to each of the first grooves 162; when the sleeve 22 is in the second position P2, each of the second grooves 221 can be opposite to each of the guide grooves 163 and away from each of the guide grooves. the first groove 162 . The handle 24 is integrally connected with the sleeve 22 for the user to hold and drive the wrench 20 to rotate.

Each of the keys 30 is in the shape of a round bar and can be located in the first grooves 162 . Each of the keys 30 located in the first grooves 162 can slide on the first groove 162 and the guide groove 163 corresponding to the first groove; parts of the keys 30 are accommodated in the sleeve One end of each of the second grooves 221 of the barrel 22 abuts against the blocking portion 222 of the sleeve 22 . As shown in FIG. 4 , when the sleeve 22 is at the first position P1 , the keys 30 are respectively located in the first grooves 162 and the second grooves 221 . As shown in FIG. 5 , when the sleeve 22 is at the second position P2, the keys 30 will be pushed away from the first grooves 162 by the stop portion 222 of the sleeve 22 , so that the keys 30 are located at the The guiding grooves 163 and the second grooves 221 are located.

The limiting member 40 is combined with the joint section of the spindle 10 and is composed of a bolt 42 and a limiting cylinder 44 . The bolt 42 is locked in the internally threaded hole 122 a of the rod body 12 . The limiting cylinder 44 is a liner, and has a ring portion 441, wherein the ring portion 441 is sleeved on the head of the bolt 42, and is located between the head of the bolt 42 and the sleeve 16, so as to limit the The location of the bushing 16. In addition, the restricting barrel 44 also has a retaining wall 442 protruding from the outer peripheral surface of the ring portion 441 to form a retaining portion of the restricting member 40 . In other embodiments, the bolt and the restricting cylinder can also be integrally formed as a single component, which is directly combined with the joint section of the mandrel, and its structure is not limited to the above.

The elastic member 50 is a spring sheathed on the ring portion 441 of the restricting cylinder 44 , and its two ends abut against the retaining wall 442 and one side of the washer 60 respectively. The spacer 60 is located between the elastic member 50 and the keys 30, and is pushed by the elastic member 50 so that the other side is against the keys 30, forcing the keys 30 toward the second The position of the groove 221 and each of the first grooves 162 moves, and drives the keys 30 to push against the blocking portion 222, and indirectly drives the sleeve 22 to move toward the first position P1. The purpose of the washer 60 is to evenly transfer the elastic force of the elastic member 50 to the keys 30 so as to drive the keys 30 to move reliably. In other embodiments, there is no need to provide spacers, and the two ends of the elastic member 50 are directly pressed against the retaining wall 442 and the keys 30 respectively, and the aforementioned effect of driving the keys 30 to move can also be achieved.

Through the design of the aforementioned quick release device 100, under normal conditions, the sleeve 22 of the wrench 20 will indirectly bear the elastic force of the elastic member 50 and maintain it at the first position P1, so that the keys 30 are respectively located at the first positions. A groove 162 is in the second grooves 221 . Therefore, when the wrench 20 is rotated under force, the keys 30 will generate an interlocking relationship to drive the sleeve 16 to rotate together. In other words, when the sleeve 22 is located at the first position P1, the spindle 10 It will be driven by the wrench 20 to rotate at the same time, so as to drive the external thread section of the spindle 10 to unscrew or tighten relative to the internal thread hole of the front fork.

After the quick release device 100 of this embodiment is assembled and tightened between the wheel and the frame, the position of the handle 24 of the wrench 20 can be adjusted by the following actions, so that the handle 24 of the wrench 20 can be placed in a safe place position to avoid interference with surrounding components or the risk of riding safety.

First, control the sleeve 22 of the wrench 20 to move from the first position P1 to the second position P2, push the keys 30 to slide from the first grooves 162 to the second position P2 through the stopper 222 of the sleeve 22 These guide grooves 163 and compress the elastic member 50, so that the interlocking relationship between the wrench 20 and the mandrel 10 cannot be generated through the keys 30; The handle 24 is moved to an appropriate position (cooperate with FIG. 6 and FIG. 7 ), wherein, the position of the handle 24 is preferably facing upward or backward.

During the rotation of the sleeve 22, the keys 30 will be driven to rotate together, so that the keys 30 will move clockwise (or counterclockwise) from one guide groove 163 to the other. In the guide groove 163. Once the handle 24 is moved to a preferred position, the control of the sleeve 22 can be released, so that the compression spring released by the elastic member 50 can force the keys 30 to slide into the first grooves 162, And indirectly drives the sleeve 22 to return to the first position P1 (please refer to FIG. 4 ).

The purpose of each of the guide grooves 163 is to communicate with each of the first grooves 162, so that when the keys 30 bear the elastic force of the elastic member 50, each of the guide grooves 163 guides each of the keys 30 to return to the corresponding ones smoothly. In the first groove 162, the collision between the keys 30 and the groove wall is prevented from affecting the interlocking cooperation relationship. Furthermore, in this implementation, the keys 30 are in contact with each of the guide grooves 163 and each of the first grooves 162 in an arc surface manner, therefore, the friction of the keys 30 during the sliding process The interference is low, and it is not easy to cause friction loss with the shaft sleeve 16. In addition, in this embodiment, in order to make the bicycle light-weight, most components are made of aluminum alloy (other materials with a small ratio can also be used), and only the keys 30 are made of high-strength and non-deformable steel. (It can also be made of other high-strength materials) so as to withstand greater stress and truly play a linkage role.

The above descriptions are only preferred feasible embodiments of the present utility model, and all equivalent changes made by applying the specification and claims of the present utility model should be included in the patent scope of the present utility model.

Claims (7)

1. a kind of device for quickly disassembling of bicycle quick, it is characterised in that include：

One mandrel, includes an adapter section, and its outer ring surface be provided with it is multiple parallel to axial first groove of the heart；

One spanner, there is a sleeve to be rotationally sheathed on the adapter section, the inner ring surface of the sleeve is recessed with least one second Groove, and can first groove is relative with 1；The sleeve on the adapter section along the mandrel axially in a first position and one Moved between the second place, when the sleeve is located at the first position, first groove is relative with 1 for second groove；

An at least key, when the sleeve is located at the first position, the key mapping is in first groove and second groove；The set When cylinder is located at the second place, the key departs from first groove；

One limited part, is incorporated into the adapter section of the mandrel, and includes a stopper section；And

One elastic component, it is arranged between the key and the stopper section, to drive the key to be moved in first groove.

2. the device for quickly disassembling of bicycle quick as claimed in claim 1, the wherein sleeve have a stopper, and the key mapping is in the stopper Between the elastic component.

3. the device for quickly disassembling of bicycle quick as claimed in claim 1, the wherein mandrel include a body of rod and an axle sleeve；The axle Set is sheathed on the body of rod one end in a manner of it can not be rotated relative to the body of rod and forms the adapter section, and such first groove is set It is placed on the outer ring surface of the axle sleeve.

It is identical that 4. the outer ring surface of the device for quickly disassembling of bicycle quick as claimed in claim 3, the wherein axle sleeve is provided with multiple quantity In such first groove and parallel to the axial guide channel of the heart, and respectively the guide channel connects respectively first groove；The set When cylinder is located at the second place, the key mapping is in the guide channel and second groove.

5. the device for quickly disassembling of bicycle quick as claimed in claim 3, wherein, one end end face that the body of rod is arranged with the axle sleeve has One inner bolt hole, while the limited part is made up of a bolt and a limitation cylinder；The limitation jacket casing is located on the head of the bolt, and The bolt lock is located in the internal thread hole；The limitation cylinder periphery has a gear wall, forms the stopper section of the limited part.

6. the device for quickly disassembling of bicycle quick as claimed in claim 1, wherein, also include a pad, positioned at the elastic component with being somebody's turn to do Between key.

7. the device for quickly disassembling of bicycle quick as claimed in claim 6, the wherein elastic component are a spring, its both ends is butted on this respectively On the one side of stopper section and the pad, and the another side of the pad is butted on the key.