Wire alignment device for electrical installation

Abstract

The utility model discloses a wire aligner for electrical installation, which comprises a side frame, a butt joint adjusting mechanism, a butt joint clamping mechanism and a clamping auxiliary mechanism, the butt joint adjusting mechanism comprises a guide rail, a moving plate, a guide block, a wire groove, a hydraulic cylinder and a butt joint sleeve, and the butt joint clamping mechanism comprises a clamping pipe, a clamping rod, a clamping groove, a screw pushing frame, a rotating sleeve and rotating teeth. Through cooperation of the guide rail, the moving plate, the guide block, the hydraulic cylinder and other components, it is ensured that the position of the butt joint sleeve can be accurately adjusted, the precision of the butt joint position can be effectively controlled, the precision during line butt joint is ensured, the sliding fit of the guide rail and the guide block enables the moving plate to move stably, vibration and errors are reduced, and the production efficiency is improved. Through the structural design of the clamping rod and the clamping pipe, the clamping rod can extend into the clamping pipe and is adjusted through the rotating sleeve, a stable clamping state is formed, and stable and reliable line connection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of wire pairing technology, and more specifically, to a wire pairing device for electrical installation. Background Technology

[0002] In existing electrical installation technologies, many wire pairers present a series of inconvenient operational problems during the wire pairing process, especially in terms of height adjustment. Height adjustment is crucial in electrical installation, particularly when precise connection and alignment are required. The purpose of height adjustment is to ensure that the wire pairer can adapt to different installation heights under varying operating conditions, facilitating accurate electrical wiring connections. Traditional wire pairers mostly rely on manual adjustment, which may require operators to adjust the height of the device multiple times, each time forcefully moving or rotating fixed components. Some devices even require auxiliary tools. This is not only time-consuming and labor-intensive but can also lead to inaccurate adjustments, increasing the impact on installation precision.

[0003] When adjusting the position of the connector, the stability of the locking mechanism is crucial after the device is adjusted to the required position. However, in many existing designs, the locking mechanism often fails to achieve the desired effect, and there may be cases where the locking is not secure enough, causing the device to shift position during operation and affecting the docking accuracy. The locking device may be designed to be too complex, requiring the operator to take multiple steps to complete the locking operation. Such a design increases the complexity of use. In some cases, the operation of the locking device is not intuitive enough, which can easily cause confusion or errors for the operator. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a wire pairing device for electrical installation, which solves the technical problems mentioned in the background art, such as the inconvenience of height adjustment during the wire pairing process and the difficulty of disassembly and locking during the process of moving to the appropriate position.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electrical installation wiring device, comprising a side frame, a docking adjustment mechanism, a docking snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism. The docking adjustment mechanism includes a guide rail, a moving plate, a guide block, a wire groove, a hydraulic cylinder, and a docking sleeve. The guide rail is symmetrically mounted on the side frame, and the guide block is symmetrically mounted on one end face of the moving plate. The guide block is slidably guided on the guide rail. The wire groove is longitudinally opened on the side frame. The hydraulic cylinder is mounted at the bottom end of the moving plate, and the docking sleeve is mounted on one end face of the moving plate. The docking snap-fit ​​mechanism includes a snap-fit ​​tube, a snap-fit ​​rod, a snap-fit ​​groove, a screw pusher, a rotating sleeve, and a rotating tooth. The snap-fit ​​rod can extend into the interior of the snap-fit ​​tube. The snap-fit ​​groove is set on the side wall of the snap-fit ​​rod. The rotating sleeve is mounted on the side wall of the snap-fit ​​tube for limiting lateral rotation. The screw pusher is threadedly connected to the rotating sleeve, allowing the screw pusher to extend into or away from the snap-fit ​​groove. The rotating tooth is mounted on one end of the rotating sleeve.

[0008] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes an outer rotating ring, a rotating block, an extension rod, a longitudinal frame, a rack, a top block, and a compression spring. The longitudinal frame is longitudinally slidably mounted on the outer wall of the snap-fit ​​tube. The rack is mounted on the longitudinal frame and meshes with the rotating teeth. The longitudinal sliding of the rack drives the rotating teeth and the rotating sleeve to rotate. The outer rotating ring is rotatably mounted on the outer wall of the snap-fit ​​tube. The rotating block is mounted on the bottom end of the outer rotating ring. The extension rod is mounted on the side of the rotating block. The top block is mounted on the top end of the longitudinal frame. The compression spring is mounted on the top block. The extension rod can extend into the top block, and the compression spring can press the extension rod tightly inside the top block, so that the adjusted longitudinal frame is longitudinally fixed.

[0009] The present invention is further configured such that a docking plate is installed at the bottom of the side frame, and the docking plate and the docking adjustment mechanism are arranged in pairs, and the docking plates are slidably arranged facing each other and back to back. The pair arrangement and the sliding facing each other and back to back ensure that the docking plates on both sides can be adjusted synchronously, improve the accuracy of the alignment, and make the line connection smoother.

[0010] The present invention is further configured such that a guide sleeve is installed at the bottom end of the docking plate, and a guide rod is installed at the bottom end of another set of docking plates. The guide rod is fixed in the guide sleeve by the docking snap-fit ​​mechanism. The guide rod and the guide sleeve work together and are fixed by the snap-fit ​​mechanism, making the docking plates more stable during installation and improving the overall reliability of the equipment.

[0011] The present invention is further configured such that a locking bolt is installed on the docking sleeve, and the locking bolt clamps the wire introduced into the docking sleeve through the wire groove. The docking sleeve is used to accommodate and fix the wire, and works with the locking bolt to clamp the wire, ensuring that the wire will not loosen during docking and improving the reliability of the connection.

[0012] The present invention is further provided that a connecting plate is installed at the bottom of the side wall of the clamping tube, and the connecting plate is fixed on the outer wall of the guide sleeve. The connection plate facilitates the stable installation of the clamping tube.

[0013] The present invention is further configured such that the guide rod has an adjustment hole, one end of the snap-fit ​​rod can extend through the guide sleeve and different adjustment holes on the guide rod, and can be quickly snapped into place with the snap-fit ​​tube. The adjustment hole on the guide rod provides different snap-fit ​​positions, and the snap-fit ​​rod can be inserted into different holes to achieve quick adjustment and improve assembly flexibility.

[0014] The present invention is further configured such that a guide groove is provided on the inner wall of the clamping tube, and the top and bottom ends of the screw pusher are slidably guided in cooperation with the guide groove. The top and bottom ends of the screw pusher slide in cooperation with the guide groove, so that the screw pusher can move stably along a predetermined trajectory, avoid deviation, and improve adjustment accuracy and stability.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a wire pair for electrical installation, which has the following advantages:

[0017] This utility model is equipped with a docking adjustment mechanism. Through the cooperation of components such as guide rails, moving plates, guide blocks, and hydraulic cylinders, it ensures that the docking sleeve can be precisely adjusted in position, effectively controlling the accuracy of the docking position and ensuring the precision of line docking. The sliding cooperation of the guide rails and guide blocks allows the moving plate to move smoothly, reducing vibration and errors and improving the stability and accuracy of docking adjustment. The hydraulic cylinder provides a large adjustment force, which can easily complete the precise adjustment of the docking position, making the operation simpler and more efficient.

[0018] This utility model features a docking and snap-fit ​​mechanism. The design of the snap-fit ​​rod and snap-fit ​​tube allows the snap-fit ​​rod to extend into the snap-fit ​​tube and be adjusted by the rotating sleeve to form a stable snap-fit ​​state, ensuring a stable and reliable circuit connection. Through the cooperation of the rotating sleeve and the screw pusher, the snap-fit ​​rod can be precisely adjusted to achieve multi-position snap-fit ​​operation, facilitating adjustment under different installation requirements. The linkage between the rotating teeth and the screw pusher makes the snap-fit ​​state tighter, avoiding possible loosening during the snap-fit ​​process and improving the reliability of the structure.

[0019] This utility model is equipped with a snap-fit ​​auxiliary mechanism. The design of the outer rotating ring, rotating block, and extension rod in the snap-fit ​​auxiliary mechanism allows the longitudinal frame to remain fixed after adjustment, thereby avoiding longitudinal position deviation during the adjustment process. The meshing of the rack and rotating teeth drives the rotation of the rotating sleeve, making the adjustment of the snap-fit ​​mechanism more stable and reducing possible errors or loosening during the snap-fit ​​process. The design of the pressure spring and top block can automatically fix the extension rod, ensuring that the adjusted device can remain stable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the device in this utility model from a bottom view.

[0022] Figure 3 This is a schematic diagram of the docking adjustment mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the docking and snap-fit ​​mechanism and the snap-fit ​​auxiliary mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the docking and snap-fit ​​mechanism and the snap-fit ​​auxiliary mechanism in this utility model.

[0025] In the diagram: 1. Side frame; 2. Guide rail; 3. Moving plate; 4. Guide block; 5. Cable groove; 6. Hydraulic cylinder; 7. Connecting sleeve; 8. Snap-fit ​​pipe; 9. Snap-fit ​​rod; 10. Snap-fit ​​groove; 11. Screw pusher; 12. Rotating sleeve; 13. Rotating gear; 14. Outer rotating ring; 15. Rotating block; 16. Extension rod; 17. Longitudinal frame; 18. Rack; 19. Top block; 20. Compression spring; 21. Connecting plate; 22. Guide sleeve; 23. Guide rod; 24. Locking bolt; 25. Connecting plate; 26. Adjusting hole; 27. Guide groove. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 An electrical installation wiring device includes a side frame 1, a docking adjustment mechanism, a docking snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism. The docking adjustment mechanism includes a guide rail 2, a moving plate 3, a guide block 4, a wire groove 5, a hydraulic cylinder 6, and a docking sleeve 7. The guide rail 2 is symmetrically mounted on the side frame 1, and the guide block 4 is symmetrically mounted on one end face of the moving plate 3. The guide block 4 is slidably guided on the guide rail 2. The wire groove 5 is longitudinally opened on the side frame 1. The hydraulic cylinder 6 is mounted on the bottom end of the moving plate 3, and the docking sleeve 7 is mounted on one end face of the moving plate 3. The docking snap-fit ​​mechanism includes a snap-fit ​​tube 8, a snap-fit ​​rod 9, a snap-fit ​​groove 10, a screw pusher 11, a rotating sleeve 12, and a rotating tooth 13. The snap-fit ​​rod 9 can extend into the interior of the snap-fit ​​tube 8. The snap-fit ​​groove 10 is set on the side wall of the snap-fit ​​rod 9. The rotating sleeve 12 is mounted on the side wall of the snap-fit ​​tube 8 for lateral rotation. The screw pusher 11 is threadedly connected to the rotating sleeve 12, allowing the screw pusher 11 to extend into or away from the snap-fit ​​groove 10. The rotating tooth 13 is mounted on one end of the rotating sleeve 12.

[0030] In this embodiment, the docking adjustment mechanism enables precise docking and positioning of the wires. Guide rails 2 are symmetrically installed on the side frame 1, and the moving plate 3 slides on the guide rails 2 through the guide block 4 to ensure smooth movement. The wire groove 5 on the side frame 1 provides a guide channel for the wires. The hydraulic cylinder 6 at the bottom of the moving plate 3 provides driving force. The docking sleeve 7 on the end face is used to fix the wires. The docking plates 21 are set in pairs at the bottom of the side frame 1 and can slide towards each other. The guide sleeve 22 and guide rod 23 at the bottom of the docking plate 21 provide precise positioning. The locking bolt 24 on the docking sleeve 7 ensures that the wires are clamped and fixed. The docking snap-fit ​​mechanism provides reliable position locking. The snap-fit ​​tube 8 is fixed to the outer wall of the guide sleeve 22 by the connecting plate 25. The snap-fit ​​rod 9 can pass through the adjustment hole 26 on the guide sleeve 22 and the guide rod 23 to form a quick connection with the snap-fit ​​tube 8. The snap-fit ​​groove 10 on the side wall of the snap-fit ​​rod 9 cooperates with the screw pusher 11 in the rotating sleeve 12. The rotation of the rotating sleeve 12 controls the extension and retraction of the screw pusher 11 to lock the snap-fit ​​groove 10. The top and bottom ends of the screw pusher 11 cooperate with the guide groove 27 on the inner wall of the snap-fit ​​tube 8 to ensure accurate movement guidance.

[0031] The locking auxiliary mechanism includes an outer rotating ring 14, a rotating block 15, an extension rod 16, a longitudinal frame 17, a rack 18, a top block 19, and a pressure spring 20. The longitudinal frame 17 is longitudinally slidably mounted on the outer wall of the locking tube 8. The rack 18 is mounted on the longitudinal frame 17 and meshes with the rotating tooth 13. The longitudinal sliding of the rack 18 drives the rotating tooth 13 and the rotating sleeve 12 to rotate. The outer rotating ring 14 is limited to rotating on the outer wall of the locking tube 8. The rotating block 15 is mounted at the bottom end of the outer rotating ring 14. The extension rod 16 is mounted on the side of the rotating block 15. The top block 19 is mounted at the top end of the longitudinal frame 17. The pressure spring 20 is mounted on the top block 19. The extension rod 16 can extend into the top block 19. The pressure spring 20 can press the extension rod 16 into the top block 19, so that the adjusted longitudinal frame 17 is longitudinally fixed.

[0032] In this embodiment, the longitudinal frame 17 slides on the outer wall of the clamping tube 8, and the rack 18 on it meshes with the rotating tooth 13. By operating the longitudinal frame 17, the toothed plate moves longitudinally, thereby realizing the rotation of the rotating tooth 13 and the rotating sleeve 12. After the screw pusher 11 extends into the clamping groove 10, the outer rotating ring 14 is operated to rotate in a limited position on the outer wall of the clamping tube 8. The rotating block 15 at the bottom and the extension rod 16 cooperate with the top block 19 at the top of the longitudinal frame 17. The compression spring 20 is installed on the top block 19, which can press and fix the extension rod 16, thereby locking the position of the longitudinal frame 17 and realizing stable clamping.

[0033] Please see Figures 1-5 As a supplementary embodiment of an electrical installation cable connector for the docking adjustment mechanism, docking locking mechanism, and locking auxiliary mechanism: A docking plate 21 is installed at the bottom of the side frame 1, and the docking plate 21 and the docking adjustment mechanism are arranged in pairs, with the docking plates 21 sliding towards and away from each other. A guide sleeve 22 is installed at the bottom end of the docking plate 21, and a guide rod 23 is installed at the bottom end of another set of docking plates 21. The guide rod 23 is fixed in the guide sleeve 22 by the docking locking mechanism, and a locking bolt is installed on the docking sleeve 7. 24, and the locking bolt 24 clamps the wire introduced into the docking sleeve 7 by the wire groove 5. The bottom side wall of the clamping tube 8 is equipped with a connecting plate 25, and the connecting plate 25 is fixed on the outer wall of the guide sleeve 22. The guide rod 23 is provided with an adjustment hole 26. One end of the clamping rod 9 can extend through different adjustment holes 26 on the guide sleeve 22 and the guide rod 23 to quickly clamp with the clamping tube 8. The inner wall of the clamping tube 8 is provided with a guide groove 27, and the top and bottom ends of the screw pusher 11 are slidably guided with the guide groove 27.

[0034] More specifically, at the start of operation, the hydraulic cylinder 6 drives the moving plate 3 to slide along the guide rail 2, maintaining stability through the guide block 4, and adjusting the position of the docking sleeve 7. At this time, the horizontal or vertical position of the docking plate 21 can be precisely controlled through the docking adjustment mechanism. After the docking sleeve 7 is in place, the locking rod 9 extends into the locking tube 8. Using the cooperation of the rotating sleeve 12 and the screw pusher 11, the locking rod 9 is pushed into the locking tube 8. The locking rod 9 is fixed by rotating the gear 13. After the locking is completed, the longitudinal frame 17 and the rack 18 of the locking auxiliary mechanism help fix the relative position of the locking rod 9. The cooperation of the rotating sleeve 12 and the outer rotating ring 14 makes the locking rod 9 less prone to loosening during operation, ensuring the firmness of the locking. The locking bolt 24 on the docking sleeve 7 guides the cable into the docking sleeve 7 through the hydraulic system and clamps the cable with the locking bolt 24 to prevent the wire from coming loose during the docking operation.

[0035] In summary, during use or operation of the overall equipment: When the docking adjustment mechanism is required, it achieves precise docking and positioning of the wires. Guide rails 2 are symmetrically installed on the side frame 1, and the moving plate 3 slides on the guide rails 2 via guide blocks 4, ensuring smooth movement. The wire groove 5 on the side frame 1 provides a guiding channel for the wires. The hydraulic cylinder 6 at the bottom of the moving plate 3 provides driving force. The docking sleeve 7 on the end face is used to fix the wires. The docking plates 21 are arranged in pairs at the bottom of the side frame 1 and can slide towards and away from each other. The guide sleeve 22 and guide rod 23 at the bottom of the docking plate 21 provide precise positioning, and the locking bolt 24 on the docking sleeve 7 ensures the wires are clamped and fixed.

[0036] When the docking and snapping mechanism is in operation, it provides reliable position locking. The snapping tube 8 is fixed to the outer wall of the guide sleeve 22 by the connecting plate 25. The snapping rod 9 can pass through the adjustment hole 26 on the guide sleeve 22 and the guide rod 23 to form a quick connection with the snapping tube 8. The snapping groove 10 on the side wall of the snapping rod 9 cooperates with the screw pusher 11 in the rotating sleeve 12. The rotation of the rotating sleeve 12 controls the extension and retraction of the screw pusher 11 to lock the snapping groove 10. The top and bottom ends of the screw pusher 11 cooperate with the guide groove 27 on the inner wall of the snapping tube 8 to ensure accurate motion guidance.

[0037] When the auxiliary locking mechanism is in operation, the longitudinal frame 17 slides on the outer wall of the locking tube 8, and the rack 18 on it meshes with the rotating tooth 13. By operating the longitudinal frame 17, the tooth plate is driven to move longitudinally, thereby realizing the rotation of the rotating tooth 13 and the rotating sleeve 12. After the screw pusher 11 extends into the locking groove 10, the outer rotating ring 14 is operated to rotate in a limited position on the outer wall of the locking tube 8. The bottom rotating block 15 and the extension rod 16 cooperate with the top block 19 at the top of the longitudinal frame 17. The compression spring 20 is installed on the top block 19, which can press and fix the extension rod 16, thereby locking the position of the longitudinal frame 17 and realizing stable locking.

[0038] At the start of operation, hydraulic cylinder 6 drives moving plate 3 to slide along guide rail 2, maintaining stability through guide block 4, and adjusting the position of docking sleeve 7. At this time, the horizontal or longitudinal position of docking plate 21 can be precisely controlled through docking adjustment mechanism. After docking sleeve 7 is in place, locking rod 9 extends into locking tube 8. Using the cooperation of rotating sleeve 12 and screw pusher 11, locking rod 9 is pushed into locking tube 8. Locking rod 9 is fixed by rotating gear 13. After locking is completed, longitudinal frame 17 and rack 18 of locking auxiliary mechanism help fix the relative position of locking rod 9. The cooperation of rotating sleeve 12 and outer rotating ring 14 makes locking rod 9 less prone to loosening during operation, ensuring the firmness of locking. Locking bolt 24 on docking sleeve 7 guides cable into docking sleeve 7 through hydraulic system and clamps cable with locking bolt 24 to prevent cable from loosening during docking.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wiring harness for electrical installation, comprising a side bracket (1), a docking adjustment mechanism, a docking locking mechanism, and a locking auxiliary mechanism, characterized in that: The docking adjustment mechanism includes a guide rail (2), a moving plate (3), a guide block (4), a wire groove (5), a hydraulic cylinder (6), and a docking sleeve (7). The guide rail (2) is symmetrically mounted on the side frame (1), and the guide block (4) is symmetrically mounted on one end face of the moving plate (3). The guide block (4) is slidably guided on the guide rail (2). The wire groove (5) is longitudinally opened on the side frame (1). The hydraulic cylinder (6) is mounted on the bottom end of the moving plate (3), and the docking sleeve (7) is mounted on one end face of the moving plate (3). The docking clamp... The connecting mechanism includes a snap-fit ​​tube (8), a snap-fit ​​rod (9), a snap-fit ​​groove (10), a screw pusher (11), a rotating sleeve (12), and a rotating tooth (13). The snap-fit ​​rod (9) can extend into the interior of the snap-fit ​​tube (8). The snap-fit ​​groove (10) is set on the side wall of the snap-fit ​​rod (9). The rotating sleeve (12) is installed on the side wall of the snap-fit ​​tube (8) for limiting lateral rotation. The screw pusher (11) is threaded into the rotating sleeve (12), so that the screw pusher (11) extends into or away from the snap-fit ​​groove (10). The rotating tooth (13) is installed at one end of the rotating sleeve (12).

2. The electrical installation wiring device according to claim 1, characterized in that: The locking auxiliary mechanism includes an outer rotating ring (14), a rotating block (15), an extension rod (16), a longitudinal frame (17), a rack (18), a top block (19), and a compression spring (20). The longitudinal frame (17) is longitudinally slidably mounted on the outer wall of the locking tube (8). The rack (18) is mounted on the longitudinal frame (17) and meshes with the rotating tooth (13). The longitudinal sliding of the rack (18) drives the rotating tooth (13) and the rotating sleeve (12) to rotate. The outer rotating ring (14) is limited to rotating and mounted on the outer wall of the locking tube (8). The rotating block (15) is mounted at the bottom end of the outer rotating ring (14). The extension rod (16) is mounted on the side of the rotating block (15). The top block (19) is mounted at the top end of the longitudinal frame (17). The compression spring (20) is mounted on the top block (19). The extension rod (16) can extend into the top block (19).

3. The electrical installation wiring device according to claim 1, characterized in that: The bottom of the side frame (1) is provided with a docking plate (21), and the docking plate (21) and the docking adjustment mechanism are set in pairs, and the docking plates (21) are slidably arranged facing each other and back to back.

4. A wire pair for electrical installation according to claim 3, characterized in that: The bottom end of the docking plate (21) is provided with a guide sleeve (22), and the bottom end of another set of docking plates (21) is provided with a guide rod (23), and the guide rod (23) is fixed in the guide sleeve (22) by the docking snap-fit ​​mechanism.

5. A wire pair for electrical installation according to claim 1, characterized in that: The docking sleeve (7) is equipped with a locking bolt (24), and the locking bolt (24) clamps the wire introduced into the docking sleeve (7) by the wire groove (5).

6. A wire pair for electrical installation according to claim 4, characterized in that: A connecting plate (25) is installed at the bottom of the side wall of the card tube (8), and the connecting plate (25) is fixed on the outer wall of the guide sleeve (22).

7. A wire pair for electrical installation according to claim 4, characterized in that: The guide rod (23) has an adjustment hole (26). One end of the snap-fit ​​rod (9) can extend through the different adjustment holes (26) on the guide sleeve (22) and the guide rod (23) to quickly snap-fit ​​with the snap-fit ​​tube (8).

8. A wire pair for electrical installation according to claim 1, characterized in that: The inner wall of the card tube (8) is provided with a guide groove (27), and the top and bottom ends of the screw pusher (11) are slidably guided in cooperation with the guide groove (27).

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