CN115084880A - Terminal table structure with elastic fixing piece - Google Patents

Abstract

The invention relates to a terminal block structure with a flexible fixing piece, which comprises an insulating base, a cover body, a conductive assembly and the flexible fixing piece, wherein the insulating base is provided with a containing cavity and a wire slot communicated with the containing cavity; the cover body covers the insulating base and is provided with a tool access hole; the conductive component is arranged in the accommodating cavity and comprises a bearing piece; the elastic fixing piece is arranged corresponding to the tool access hole and comprises an elastic element and a fixing piece, the elastic element is arranged between the fixing piece and the cover body, the fixing piece can be moved away from the cover body to be combined with the bearing piece assembly, and the cover body is retracted through the restoring force of the elastic element. Therefore, the fixing piece can be effectively prevented from being separated, and further the risk caused by the loss or falling of parts into the equipment is reduced.

Description

Terminal block structure with retractable fasteners

technical field

The present invention relates to the technical field of a terminal block structure, in particular to a terminal block structure with an elastic and retractable fixing member.

Background technique

Terminal blocks have been widely used in industrial computers, uninterruptible power supply systems, power supplies and other machinery and equipment, electromechanical systems, industrial control equipment such as refrigeration air conditioners or programmable controllers, or electrical appliances such as air conditioners, refrigerators, washing machines or ovens. The structure (Terminal Block) is mainly used to provide an electrical conductive device for electrical connection of wires.

The existing terminal block structure mainly includes an insulating base, a conductive component and an upper cover, a wire slot is arranged on the insulating base, the conductive component is fixed inside the insulating base, and the conductive component includes a conductive plate, A screw connecting the conductive plate and a nut for locking the corresponding screw, the upper cover is set above the insulating base; when wiring, you need to open the upper cover first, then remove the nut completely, and place a wire in place After that, install the nut to lock it.

However, in the existing terminal block structure, since each component is independent, there are problems such as complicated wiring process, inconvenient wiring, and time-consuming wiring, which in turn leads to high labor costs. In addition, when the nut is removed, it often falls into the equipment or is lost. On the one hand, it is not easy to find, and on the other hand, the nut left in the equipment may cause a safety hazard.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a terminal block structure with a retractable fixing member, which can effectively prevent the detachment of the fixing member during the installation and replacement process, thereby reducing the loss of parts or falling into the equipment. create risk.

In order to achieve the above object, the present invention provides a terminal block structure with a retractable fixing member, comprising an insulating base, a cover, a conductive component and a retractable fixing member, the insulating base has a container cavity and a wire slot connected to the cavity; the cover covers the insulating base, and the cover is provided with a tool access hole; the conductive component is arranged in the cavity of the insulating base , and the conductive component includes a receiving member; the elastically retractable fixing member is arranged corresponding to the tool access hole, the elastically retractable fixing member includes an elastic element and a fixing member, and the elastic element is arranged on the fixing member and the cover body. In between, the fixing piece can be operably moved away from the cover body to be assembled with the receiving piece, and after being disconnected from the receiving piece, the cover body is retracted by the restoring force of the elastic element.

Optionally, the elastic element includes a helical segment and a tightening ring that shrinks inwardly from the helical segment, and the fixing piece includes a nut body and a stop ring connected to the nut body. A clamping groove for the tightening ring to be sleeved and fixed is arranged between the baffle ring and the baffle ring.

Optionally, the cover body includes a frame plate and a hollow column extending from the frame plate, and the tool access hole is formed in the center of the hollow column.

Optionally, the frame plate around the hollow column is extended with several hooks, the elastic element is a coil spring, the coil spring is sleeved around the outer circumference of the hollow column, and one end of the coil spring is held by each The snap hook is fixed.

Optionally, the insulating base includes a front housing seat and a rear housing seat corresponding to the front housing seat, the cavity and the wire slot are formed between the front housing seat and the rear housing seat, the The frame plate is extended with a plurality of hooks, and the front shell seat and the rear shell seat are respectively extended with a plurality of hooks for fixing the hooks.

Optionally, the frame plate is respectively extended with a plurality of embedded shafts, the front shell seat and the rear shell seat are respectively extended with a plurality of embedded grooves, and each of the embedded shafts is embedded and fixed corresponding to each of the embedded grooves.

Optionally, the receiving member is a screw rod, the fixing member is a nut screwed together with the screw rod, and the elastic element is a coil spring.

Optionally, the conductive component further includes a conductive plate, and the conductive plate is used for connecting through the receiving member.

Optionally, the number of the tool access hole, the receiving member and the elastically retractable fixing member are the same, and they are all provided in several numbers.

Optionally, the insulating base includes a front shell seat and a rear shell seat corresponding to the front shell seat, the front shell seat is formed with a placing table, and the front shell seat around the placing table is provided with several numbers. a plurality of bolts and a plurality of pin holes, the rear shell base is formed with another placing table, and the rear shell seat around the other placing table is provided with a plurality of other bolts and a plurality of other pin holes, the placing table The platform is correspondingly engaged with the other placing platform, and each of the pins and each of the pin holes is corresponding to each of the other pin holes and each of the other pin holes for insertion and combination.

Optionally, the cover body includes a frame plate, a hollow column extending from the frame plate and a dust cover, the tool access hole is formed in the center of the hollow column, the dust cover is pivotally connected to the hollow column and Covered with the tool access hole.

Optionally, the cover body includes a hollow column, the elastically retractable fixing member further includes an inner sleeve, the elastic element is sleeved on the outer periphery of the inner sleeve, and is threaded in the hollow together with the inner sleeve. inside the column.

Optionally, the retractable fixing member further includes an arcuate spring, and the fixing member is clamped by the arcuate spring and fixed to the inner sleeve.

Optionally, the hollow column is provided with a guide groove, the inner sleeve includes a cylindrical body and a convex block, and the convex block extends radially from one side of the cylindrical body to be connected with the guide groove. Slot fit slip.

Optionally, the inner sleeve further includes an upper lip and a lower retaining hook, the upper lip extending radially from the top end of the cylindrical body, and the lower retaining hook is formed at the bottom end of the cylindrical body.

Optionally, the upper and lower ends of the elastic element are interposed between the upper lip and the lower hook.

The present invention also has the following effects, which can simplify the wiring steps, improve the operation efficiency of the wiring terminal, and further reduce the time and labor cost during wiring. After the fixing piece and the receiving piece are loosened and withdrawn, the fixing piece is still firmly held by the elastic element, and there is no need to worry about the loss of parts or falling inside the equipment, which will cause hidden safety hazards and use risks. One end of the elastic element is fixed by each hook and surrounded along the outer periphery of the hollow column, after the fixing piece is separated from the receiving piece, it can be stably bounced and retracted into the access hole of the tool. The cover body is combined with the catches of each block of the insulating base through the hooks, which facilitates the assembly and disassembly of the cover body and the insulating base.

Description of drawings

FIG. 1 is a perspective exploded view of the structure of the terminal block of the present invention.

FIG. 2 is a three-dimensional appearance view of the cover of the present invention.

FIG. 3 is an external view of the structure combination of the terminal block of the present invention.

FIG. 4 is a cross-sectional view of the terminal block structure of the present invention.

FIG. 5 is a partial cross-sectional view of the insulating base and the cover of the present invention after being assembled.

FIG. 6 is a cross-sectional view of the combination of the cover body and the retractable fixing member of the present invention.

FIG. 7 is a cross-sectional view of the structure of the terminal block and the conductor in the first use state of the present invention.

FIG. 8 is a cross-sectional view of the terminal block structure and the wire in the second use state of the present invention.

FIG. 9 is an exploded perspective view of another embodiment of the cover body and the retractable fixing member of the present invention.

FIG. 10 is a cross-sectional view of another embodiment of the terminal block structure of the present invention in a use state.

In the picture:

1: Terminal block structure; 10: Insulation base; 11: Front shell seat; 111, 121: Placement table; 112, 122: Pin; 113, 123: Pin hole; 114, 124: Block; 115, 125: 12: Rear shell seat; 13: Container; 14: Wire slot; 20, 20A: Cover body; 21: Frame plate; 22: Hollow column; 221: Guide slot; 23: Tool access hole; 24 : buckle; 25: hook; 26: embedded shaft; 27: dust cover; 30: conductive component; 31: conductive plate; Element; 411: Spiral segment; 412: Tightening ring; 42: Fixing part; 421: Nut body; 422: Retaining ring; 423: Slot; 43: Inner sleeve; ; 433: upper lip; 434: lower stop hook; 44: bow spring; 8: wire; 81: O-shaped terminal; 9: socket wrench.

Detailed ways

The present invention is further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

Please refer to FIG. 1 to FIG. 6 , the present invention provides a terminal block structure with a retractable fixing member. The terminal block structure 1 mainly includes an insulating base 10 , a cover body 20 , a conductive element 30 and a Retractable fastener 40 .

Referring first to FIG. 1 , the insulating base 10 of this embodiment is made of a plastic material with good insulating properties, and mainly includes a front housing 11 and a rear housing 12 assembled corresponding to the front housing 11 . , a cavity 13 is formed inside the front shell 11 and the rear shell 12 (as shown in FIG. 4 ), and two sides of the front shell 11 and the rear shell 12 are respectively provided with a connecting cavity 13 Wire slot 14 (see Figure 3).

Further, a placing table 111 is formed in the middle area of the front housing base 11 , and a plurality of pins 112 and a plurality of pin holes 113 are provided on the side surface of the placing table 111 and outside the placing table 111 . Similarly, a placing table 121 is formed in the middle area of the rear housing base 12 , and a plurality of pins 122 and a plurality of pin holes 123 are provided on the side of the placing table 121 and outside the placing table 121 . The pins 112 of the front housing 11 are respectively corresponding to the pin holes 123 of the rear housing 12 for penetrating connection, and the pins 122 of the rear housing 12 are respectively corresponding to the pin holes 113 of the front housing 11. The mounting platforms 111 and 121 are arranged side by side, the aforementioned cavity 13 is formed above the respective mounting platforms 111 and 121, and the aforementioned wire slots 14 are formed on the sides of the respective mounting platforms 111 and 121. side, and the number of the wire slots 14 in this embodiment is two.

2, 3 and 5, the cover body 20 covers the insulating base 10, and mainly includes a frame plate 21, which is roughly in the shape of a long rectangle, and two hollows extend from the frame plate 21. For the columns 22 , a tool access hole 23 is formed in the center of each hollow column 22 respectively; There are hooks 25 extending from the four corners of the frame plate 21 respectively; a plurality of locking blocks 114 and 124 are respectively extended on the inner sides of the front housing base 11 and the rear housing base 12 . The hook 25 is clamped and fixed (as shown in Figure 5). Furthermore, a plurality of embedded shafts 26 are respectively extended at the middle positions of the two sides of the frame plate 21 ; a plurality of embedded grooves 115 and 125 are respectively extended on the outer sides of the aforementioned front shell seat 11 and the rear shell seat 12 , and each embedded shaft 26 corresponds to It is inserted and fixed in each of the embedding grooves 115 and 125 (as shown in FIG. 3 ).

The conductive component 30 is made of a metal material with good electrical conductivity, and mainly includes a conductive plate 31 and a plurality of receiving members 32 penetrating the conductive plate 31. The receiving member 32 in this embodiment is a screw, and the conductive component 30 is a It is fixed on each placing table 111 and 121 and is formed in the cavity 13 of the insulating base 10 .

3, 4 and 6, the elastically retractable fixing member 40 is provided corresponding to the tool access hole 23, and mainly includes an elastic element 41 and a fixing member 42. The elastic element 41 in this embodiment is A coil spring, the fixing member 42 in this embodiment is a nut, the so-called “elastic retraction type” means that after the fixing member 42 is released, the fixing member 42 will be retracted to the original position by the elastic element 41 .

Further, the elastic element 41 mainly includes a helical segment 411 and a tightening ring 412 that shrinks inward from the lower end of the helical segment 411. The upper end is clamped and fixed by the hooks 24 . The fixing member 42 mainly includes a nut body 421 and a retaining ring 422 connected to one end of the nut body 421. A snap groove 423 is provided on the outer periphery of the joint of the nut body 421 and the retaining ring 422 (see FIG. 6 ). ), so that the tightening ring 412 can be set and fixed.

Please refer to FIG. 7 and FIG. 8 , the terminal block structure 1 of the present invention can be used for a wire 8 to be inserted and connected, and an O-shaped terminal 81 is connected to the end of the wire 8. When assembled, the O-shaped terminal 81 is inserted from the wire. The slot 14 is inserted into and sleeved on the receiving part 32, and a socket wrench 9 is inserted through the tool access hole 23 and sleeved on the fixing part 42; then, the fixing part 42 can be operably pushed from the cover body 20 , and through the rotating operation of the socket wrench 9, the O-shaped terminal 81 is clamped between the conductive plate 31 and the fixing member 42, and the elastic element 41 at this time is in an elongated and extended state. On the contrary, the socket wrench 9 is inserted through the tool access hole 23 when unloading, and through the rotation operation of the socket wrench 9, after the fixing piece 42 and the receiving piece 32 are released and released, the elastic restoring force of the elastic element 41 is used to make The fixing member 42 is retracted into the tool access hole 23 of the cover body 20; in this way, the fixing member 42 can be effectively prevented from being separated from the cover body 20, thereby reducing the risk of the fixing member 42 being lost or falling into the equipment.

Referring to FIG. 9 , in addition to the above-mentioned embodiment, the cover body and the elastic-retractable fixing member of the present invention further include a dust cover 27 , and the dust cover 27 is pivotally connected in the hollow space. The side edge of the column 22 is also used to cover the tool access hole 23 , and a guide groove 221 is also provided in the hollow column 22 .

The retractable fixing member 40A of this embodiment mainly includes an elastic element 41A, a fixing member 42, an inner sleeve 43 and a bow spring 44, wherein the elastic element 41A is a compression coil spring, and the inner sleeve 43 mainly includes a The cylindrical body 431, a convex block 432, an upper lip 433 and a lower hook 434, the convex block 432 extends radially from the top end side of the cylindrical body 431 to cooperate with the aforementioned guide groove 221 to slide. The upper lip 433 also expands and extends radially from the top end of the cylindrical body 431 , and the lower retaining hook 434 is formed at the bottom end of the cylindrical body 431 to prevent the inner sleeve 43 from being detached from the hollow column 22 . out.

The elastic element 41A is sleeved on the outer periphery of the cylindrical body 431 , and passes through the hollow column 22 together with the inner sleeve 43 , so that the elastic element 41A is formed on the inner wall surface of the hollow column 22 and the outer surface of the cylindrical body 431 . Between the walls, and the upper and lower ends of the elastic element 41A are between the upper lip 433 and the lower blocking hook 434 . The fixing member 42 is clamped by the bow spring 44 and fixed to the bottom end of the cylindrical body 431 .

Please refer to FIG. 10 , when the fixing member 42 is moved toward the receiving member 32 during assembly, the cylindrical body 431 will move with the fixing member 42 and compress the elastic element 41A. Conversely, after the fixing piece 42 is released from the receiving piece 32 during disengagement, the fixing piece 42 and the inner sleeve 43 are retracted together into the tool access hole 23 of the cover 20A by the elastic restoring force of the elastic element 41A.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims (16)

1. a terminal block structure with elastic retractable fastener, is characterized in that, comprises: an insulating base having a cavity and a wire slot connected to the cavity; a cover body, the cover body is covered on the insulating base, and the cover body is provided with a tool access hole; A conductive component is disposed in the cavity of the insulating base, the conductive component includes a receiving member; and An elastic-retractable fixing piece is arranged corresponding to the tool access hole, the elastic-retractable fixing piece includes an elastic element and a fixing piece, the elastic element is arranged between the fixing piece and the cover body, and the fixing piece is operable The cover body is moved away from the cover body to be assembled with the receiving part, and the cover body is retracted by the restoring force of the elastic element after being disconnected from the receiving part. 2 . The terminal block structure with an elastic-retractable fixing member as claimed in claim 1 , wherein the elastic element comprises a helical segment and a tightening ring which shrinks inwardly from the helical segment, and the fixing member comprises: 3 . A nut body and a baffle ring connected to the nut body, and a clamping groove for the tightening ring to be sleeved and fixed between the nut body and the baffle ring. 3 . The terminal block structure as claimed in claim 1 , wherein the cover body comprises a frame plate and a hollow column extending from the frame plate, and the tool access hole is formed in the hollow body. 4 . the center of the column. 4 . The terminal block structure with elastic-retractable fasteners as claimed in claim 3 , wherein a plurality of hooks extend from the frame plate around the outer periphery of the hollow column, the elastic element is a coil spring, and the spiral The spring is sleeved on the outer circumference of the hollow column, and one end of the coil spring is clamped and fixed by each of the buckle hooks. 5 . The terminal block structure with retractable fasteners as claimed in claim 3 , wherein the insulating base comprises a front housing seat and a rear housing seat corresponding to the front housing seat, and the cavity And the wire slot is formed between the front shell seat and the rear shell seat, the frame plate is extended with a plurality of hooks, and the front shell seat and the rear shell seat are respectively extended with hooks for fixing the hooks. Several cards. 6 . The terminal block structure with elastic and retractable fasteners as claimed in claim 5 , wherein the frame plate is respectively extended with a plurality of embedded shafts, and the front housing base and the rear housing base are respectively extended with a plurality of embedded grooves. 7 . , each of the embedded shafts is respectively embedded and fixed corresponding to each of the embedded grooves. 7 . The terminal block structure with an elastic-retractable fixing member as claimed in claim 1 , wherein the receiving member is a screw, the fixing member is a nut screwed with the screw, and the elastic element is a nut. 8 . A coil spring. 8 . The terminal block structure of claim 1 , wherein the conductive component further comprises a conductive plate, and the conductive plate is used for passing through and connecting the receiving member. 9 . 9 . The terminal block structure with retractable fasteners as claimed in claim 1 , wherein the tool access hole, the receiving element and the retractable fastener have the same number and are provided in several. 10 . 10 . The terminal block structure with retractable fasteners as claimed in claim 1 , wherein the insulating base comprises a front housing seat and a rear housing seat corresponding to the front housing seat, and the front housing The seat is formed with a placing table, the front shell seat around the placing table is provided with a plurality of pins and a plurality of pin holes, the rear shell seat is formed with another placing table, the The rear shell seat is provided with several other pins and several other pin holes, the placing platform is correspondingly engaged with the other placing platform, and each of the bolts and each of the pin holes corresponds to each of the other The pin hole is inserted and combined with each of the other pins. 11 . The terminal block structure with retractable fasteners as claimed in claim 1 , wherein the cover body comprises a frame plate, a hollow column extending from the frame plate, and a dust-proof cover, and the tool enters and exits. 12 . A hole is formed in the center of the hollow column, and the dust cover is pivotally connected to the hollow column and covers the tool access hole. 12 . The terminal block structure with an elastic-retractable fixing member as claimed in claim 1 , wherein the cover body comprises a hollow column, the elastic-retractable fixing member further comprises an inner sleeve, and the elastic element is sleeved. 13 . On the outer periphery of the inner sleeve, and together with the inner sleeve pass through the interior of the hollow column. 13. The terminal block structure with an elastically retractable fixing member as claimed in claim 12, wherein the elastically retracting fixing member further comprises an arcuate spring, and the fixing member is clamped by the arcuate spring and fixed on the the inner sleeve. 14. The terminal block structure with elastic-retractable fasteners as claimed in claim 12, wherein the hollow column is provided with a guide groove, the inner sleeve comprises a cylindrical body and a protruding block, the protruding block It extends radially from one side of the cylindrical body to cooperate with the guide groove to slide. 15 . The terminal block structure with retractable fasteners as claimed in claim 14 , wherein the inner sleeve further comprises an upper lip and a lower hook, the upper lip extending along the top of the cylindrical body. 16 . Expanding and extending radially, the lower blocking hook is formed at the bottom end of the cylindrical body. 16 . The terminal block structure with retractable fasteners as claimed in claim 15 , wherein the upper and lower ends of the elastic element are interposed between the upper lip and the lower hook. 17 .

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