Wiring terminal wrench and wire clamping elastic sheet
By designing rectangular closed grooves in the wiring terminal wrench and clamping shrapnel to reduce the area of the clamping shrapnel and increase its elastic deformation, the problem of high operating force and time consumption of terminal wrench and clamping shrapnel in the prior art is solved, and a more labor-saving wiring operation is achieved.
Patent Information
- Application Number
- CN202421322222.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The existing terminal wrench and clamping shrapnel have a high pressure when the conductor is connected to the terminal, and the force required to rotate the operating handle is also high, which makes it difficult to install or connect the conductor and increases time consumption.
A terminal wrench and a wire clamping shrapnel are designed. The lower end of the function part of the wrench is equipped with a rectangular closed groove. The retaining legs of the wire clamping shrapnel pass through the groove, reducing the area of the shrapnel, increasing elastic deformation, and achieving the purpose of saving labor.
By reducing the area of the clamping wire shrapnel and increasing its elastic deformation, the force required for operation is reduced, the installation and connection process of the conductor is simplified, and the operating time is reduced.
Smart Images
Figure CN222915371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical conductor connection, in particular to a terminal wrench and a wire clamping spring piece. Background Art
[0002] The terminal wrench and the wire clamping spring piece are accessory products for realizing the connection of electrical conductors. Generally, it includes an insulating housing, a terminal wrench, a wire clamping spring piece, and an electrical conductor. By inserting a wire into a wire clamping channel through an insertion port of the insulating housing, and electrically connecting and conducting through the wire clamping spring piece and the electrical conductor, thereby realizing the electrical connection with an external electrical component. Therefore, there is a particular need for a terminal wrench and a wire clamping spring piece.
[0003] However, for existing terminal wrenches and wire clamping spring pieces, most terminals require a relatively large downward pressure when connecting a wire to the terminal. Even when the terminal is unloaded, the force required to turn the operating handle is also very large. The manual operation of the operating element makes the installation or connection of the conductor difficult for the user because the operation is troublesome and thus also increases the time consumption. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a terminal wrench and a wire clamping spring piece to solve the problem in the above-mentioned background art that for existing terminal wrenches and wire clamping spring pieces, most terminals require a relatively large downward pressure when connecting a wire to the terminal. Even when the terminal is unloaded, the force required to turn the operating handle is also very large. The manual operation of the operating element makes the installation or connection of the conductor difficult for the user because the operation is troublesome and thus also increases the time consumption.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A terminal wrench and a wire clamping spring piece, including a wrench, the wrench is installed on a rotating shaft in an installation cavity of an insulating housing C. The wrench includes an operating part and an acting part. Its operating part is located at the upper position outside the insulating housing C, and its acting part extends into the insulating housing C. At the lower end of the acting part of the wrench, there is a rectangular closed slot. The width inside the rectangular closed slot is such that the holding leg of the wire clamping spring piece can pass through. On both sides are the holding leg and the clamping leg. The holding leg is connected to the clamping leg through a U-shaped bent arm structure. The wrench is always dynamically engaged with the holding leg at the clamping position and the opening position. The holding leg is swingably supported. The clamping leg is disengaged from the electrical conductor B through the wire clamping spring piece.
[0006] Preferably, the holding leg of the wire clamping spring piece is slightly narrower than the clamping leg, and forms a concave structure at the connection with the U-shaped bent arm structure. The holding leg passes through the rectangular closed slot at the lower end of the acting part.
[0007] Preferably, the terminal wrench is fixed on the insulating housing C as a separate component.
[0008] Preferably, the acting part is rotated upward through the operating part, the holding leg is lifted upward through the acting part, the whole wire clamping elastic piece is rotated upward, and the clamping leg is lifted upward to leave the electrical conductor B to form a wire insertion channel.
[0009] Preferably, after the wrench is opened, there is a downward concave fixing position at the lower end of the acting part, which is embedded into the protruding fixing position in the installation cavity of the insulating housing C.
[0010] Preferably, a space is formed at the position behind the acting part after the wrench is opened.
[0011] Preferably, the holding leg of the wire clamping elastic piece is rotated downward through the acting part to return to the closed position, and the clamping leg of the wire clamping elastic piece clamps the electrical conductor B downward to form an electrical circuit path.
[0012] Preferably, the wire clamping elastic piece is made of stainless steel.
[0013] Preferably, the electrical conductor B is made of metal.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: for the terminal wrench and the wire clamping elastic piece, the holding arm of the wire clamping elastic piece needs to pass through the rectangular closed slot, which reduces the area of the elastic piece, makes it easier to have elastic deformation, achieves the purpose of saving effort, and the space of the rectangular closed slot is small, making the overall structure more stable and more conducive to the application of downward force, further realizing the effect of saving effort. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front view external structure schematic diagram of the present utility model;
[0016] Figure 2 It is a cross-sectional structure schematic diagram of the terminal of the present utility model;
[0017] Figure 3 It is a structure schematic diagram of the operating part of the present utility model in the lifted state;
[0018] Figure 4 It is a structure schematic diagram of the operating part of the present utility model in the pressed state;
[0019] Figure 5 It is a structure schematic diagram of the cooperation between the wrench and the wire clamping spring of the present utility model in the state where the operating part is lifted;
[0020] Figure 6 It is a structure schematic diagram of the cooperation between the wrench and the wire clamping spring of the present utility model in the state where the operating part is pressed down;
[0021] Figure 7Schematic diagram of the state where the operating part of the terminal is lifted after inserting the wire according to the present utility model;
[0022] Figure 8 Schematic diagram of the state where the operating part of the terminal is pressed down after inserting the wire according to the present utility model;
[0023] Figure 9 Schematic diagram of the wrench structure according to the present utility model;
[0024] Figure 10 Schematic diagram of the wire clamping spring structure according to the present utility model. Detailed implementation manners
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0026] Please refer to Figure 1-10 , the present utility model provides a technical solution: a terminal wrench and a wire clamping elastic piece. In Figure 1 、 Figure 2 a terminal A with a preferred embodiment according to the present utility model 100 is shown.
[0027] Further, as Figure 1-8 shown, the terminal A generally includes an insulating housing C. The insulating housing C can be constructed of insulating plastic. The insulating housing C has a wire insertion opening A1, and the wire L to be connected can be inserted into the housing C along the insertion direction E through the wire insertion opening so as to be connected to the connecting device 100.
[0028] Further, as Figure 1-8 shown, the connecting device 100 is installed inside the insulating housing C. The connecting device 100 includes a terminal wrench 120 and a wire clamping elastic piece 111. Among them, by means of the wire clamping elastic piece 111, the wire L inserted into the insulating housing C can be clamped with the electrical conductor B and thus connected.
[0029] Further, as Figure 9 shown, the wrench 120 is installed on the rotating shaft 123 in the installation cavity of the insulating housing C. The wrench 120 includes an operating part 121 and an acting part 122. Its operating part 121 is placed at the upper position outside the insulating housing C, and its acting part extends into the insulating housing C; at the lower end of the acting part 122 of the wrench 120, a rectangular closed slot 126 is provided, and the width provided inside the rectangular closed slot 126 allows the holding leg 112 of the wire clamping elastic piece 111 to pass through.
[0030] Furthermore, as Figure 10 shown, the wire clamping spring piece 111 is made of stainless steel material. The wire clamping spring piece 111 has a U-shaped bent arm structure 114 in the middle, a holding leg 112 and a clamping leg 113; the middle U-shaped bent arm structure 114 is arranged on a fixed rotating shaft in the inner cavity of the insulating housing C, and the wire clamping spring piece 111 can rotate up and down around the rotating shaft, and the holding leg 112 and the clamping leg 113 can also rotate accordingly so that the holding leg 112 and the clamping leg 113 can rotate to the open position and the closed position. The clamping leg 113 can clamp the wire L inserted from the conductive channel relative to the electrical conductor B in the closed position.
[0031] Furthermore, when the user wants to open the wire insertion channel to insert the wire L, as Figure 3 shown, the user only needs to open the terminal wrench 120. The operating part 121 of the wrench 120 is lifted up, and the acting part 122 rotates upward, driving the holding leg 112 of the wire clamping spring piece passing through the rectangular closed slot 126 to lift upward. The whole wire clamping spring piece 111 rotates upward, and the clamping leg 113 of the wire clamping spring piece 111 lifts upward away from the electrical conductor B to form a wire insertion channel.
[0032] Furthermore, as Figure 3-6 shown, when the operating part 121 of the terminal wrench 120 is lifted up, the clamping leg 113 can rotate from the clamping position as Figure 4 、 Figure 6 shown to the open position as Figure 3 、 Figure 5 shown. The wrench 120 is in dynamic engagement with the holding leg 112 in the clamping position as Figure 4 、 Figure 6 shown and the open position as Figure 3 、 Figure 5 shown. The holding leg 112 is swingably supported, and by operating the wrench 120, the wire clamping spring piece 111 can be rotated up and down so that the clamping leg 113 forms a wire insertion channel with the electrical conductor B.
[0033] Furthermore, as Figure 2-3 shown, after the terminal wrench 120 is opened, there is a downward concave fixed position 13 at the lower end of the acting part 122 embedded in the protruding fixed position 12 in the installation cavity of the insulating housing, preventing it from automatically swinging back to the initial position and making the wrench 120 more stable in the open state, facilitating the insertion of the wire into the conductive channel.
[0034] Furthermore, as Figure 5-9 shown, after the terminal wrench 120 is opened, an inwardly inclined space 127 is left at the back position of the acting part 122 for the up and down rotation of the holding leg 112, and there are two symmetrical sheet-like planes 128A, 128B outside the space to limit the rotation direction and orientation of the holding leg 112.
[0035] Further, such as Figure 3-9 As shown, the terminal wrench 120 includes an operating portion 121 and an action portion 122, a limiting surface 124 is provided below the action portion 122, and the housing C is provided with a platform 14 that cooperates with the limiting surface 125 to limit the upward rotation range of the operating portion 121. At the same time, a cylindrical railing 125 is provided below the limiting surface 124 to limit the rotation range of the clamping spring 111.
[0036] Further, such as Figure 2-3 As shown, when the operating portion 121 of the terminal wrench 120 is rotated upward to the upper limit position, the operating portion 121 is in the same position as the initial position. Figure 2 Shown is an acute angle of 45 degrees.
[0037] Further, such as Figure 7 As shown, when the wire insertion channel is opened, the user can insert the wire L from the direction E into the opening A1 of the wire insertion channel.
[0038] Further, such as Figure 7-8 As shown, when the operating portion 121 of the terminal wrench 120 is pressed down, the action portion 122 rotates downward, driving the retaining leg 112 of the clamping spring 111 passing through the rectangular closed slot 126 to rotate downward and return to the closed position. At the same time, the clamping spring 111 rotates downward as a whole, and the clamping leg 113 of the clamping spring 111 clamps the electrical conductor downward to form a circuit path, completing the quick wiring.
[0039] Furthermore, a limit surface 124 is also provided below the action portion 122 to limit the downward rotation range of the operating portion 121. At the same time, a cylindrical railing 125 is provided below the limit surface 124 to limit the rotation range of the clamping spring 111 and finally return to the original position.
[0040] Further, such as Figure 7-8 As shown, after the wire L is inserted into the conductive channel, the downward turning operation part 121 returns to the original position, the space between the wire clamping spring 111 and the conductor B is squeezed, the wire clamping spring 111 is deformed, and the upper part of the wire L is squeezed by the bottom 115 of the clamping leg 113 of the wire clamping spring 111, which limits the pulling out of the wire and fixes it inside the terminal A, forming a circuit path, and completing the quick wiring.
[0041] Further, such as Figure 8 When the operating portion 121 of the wiring terminal wrench 120 rotates downward to the lower limit position, the operating portion 121 returns to the initial position.
[0042] Further, such as Figure 10 As shown, the U-shaped arm structure 114, the retaining leg 112 and the clamping leg 113 in the wire clamping spring 111 are integrally formed by stamping and bending.
[0043] Furthermore, in other aspects, the connecting device 100 is constructed according to the design shown in Figure 5 and 6 with Figure 9 and 10 .
[0044] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A terminal wrench (120) and a wire clamping spring (111), characterized in that: The invention comprises a wrench (120), wherein the wrench (120) is mounted on a rotating shaft (123) in a mounting cavity of an insulating housing (C), wherein the wrench (120) comprises an operating portion (121) and an action portion (122), wherein the operating portion (121) is disposed at an upper position outside the insulating housing (C), and the action portion extends into the interior of the insulating housing (C); the action portion (122) of the wrench (120) is provided with a rectangular closed slot (126) at the lower end, and the width of the rectangular closed slot (126) is The retaining leg (112) of the clamping spring (111) can pass through, and the retaining leg (112) and the clamping leg (113) are provided on both sides. The retaining leg (112) is connected to the clamping leg (113) through a U-shaped bent arm structure (114). The wrench (120) is dynamically engaged with the retaining leg (112) in the clamping position and the open position. The retaining leg (112) is supported in a swingable manner. The clamping leg (113) is disengaged from the electrical conductor (B) through the clamping spring (111).
2. The terminal wrench (120) and the wire clamping spring (111) according to claim 1, characterized in that: The retaining leg (112) of the clamping spring (111) is slightly narrower than the clamping leg (113), and forms a concave structure at the junction with the U-shaped curved arm structure (114). The retaining leg (112) passes through the rectangular closed slot (126) at the lower end of the action part (122).
3. The terminal wrench (120) and the wire clamping spring (111) according to claim 1, characterized in that: The terminal spanner (120) is fixed on the insulating housing (C) as a separate component.
4. The terminal wrench (120) and the wire clamping spring (111) according to claim 1, characterized in that: The action portion (122) is rotated upward through the operating portion (121), the retaining leg (112) is lifted upward through the action portion (122), the wire clamping spring (111) is rotated upward as a whole, and the clamping leg (113) is lifted upward away from the electrical conductor (B) to form a wire insertion channel.
5. The terminal wrench (120) and the wire clamping spring (111) according to claim 3, characterized in that: When the wrench (120) is opened, the lower end of the action portion (122) has a protruding fixing position (12) which is embedded in the installation cavity of the insulating housing (C) at a downwardly recessed fixing position (13).
6. The terminal wrench (120) and the wire clamping spring (111) according to claim 3, characterized in that: When the wrench (120) is opened, a space (127) is formed at the rear of the action portion (122).
7. The terminal wrench (120) and the wire clamping spring (111) according to claim 3, characterized in that: The retaining leg (112) of the wire clamping spring (111) is rotated downward through the action portion (122) to return to the closed position, and the clamping leg (113) of the wire clamping spring (111) clamps the electrical conductor (B) downward to form a circuit path.
8. The terminal wrench (120) and the wire clamping spring (111) according to claim 3, characterized in that: The wire clamping spring (111) is made of stainless steel.
9. The terminal wrench (120) and the wire clamping spring (111) according to claim 3, characterized in that: The electrical conductor (B) is made of metal material.