Terminal strip wiring positioning device

Abstract

The invention relates to the technical field of electrical engineering, and particularly discloses a terminal strip wiring positioning device which comprises a terminal strip, the wire inlet end and the wire outlet end of the terminal strip are fixedly connected with wire harnesses through screws, and the wire inlet end and the wire outlet end of the terminal strip are each provided with a wire harness positioning structure. The wire harness positioning structure comprises a shell, a plurality of linear push rod motors are fixedly arranged on the surface of a back plate, a spring is hung to the push rod end of each linear push rod motor, the other end of each spring is hung to one end of a connecting plate, clamping jaws are hinged to the two ends of the double-shaft rod base, and the clamping jaws make contact with the inner wall of the sleeve in an attached mode. According to the device, after the wire harness is connected with the terminal strip, the insulating layer end of the wire harness is clamped with the clamping jaw, the controller uniformly controls the push rod of the linear push rod motor to retract, the wire harness can be uniformly clamped and positioned, the connection stability of the wire harness is improved, and therefore the circuit stability is improved; and the positioning of the wire harness can be relieved only by uniformly controlling the extension of the linear push rod motor through the controller.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical engineering, and more specifically, to a wiring positioning device for a terminal block. Background Art

[0002] A terminal block is a standardized component used for connecting, distributing, and transmitting electrical signals or power in the fields of electrical and electronic engineering. It is usually composed of multiple wiring terminals arranged and combined according to certain rules. Its core functions are to simplify wiring, improve connection reliability, facilitate maintenance and expansion, and it is widely used in distribution cabinets, control cabinets, mechanical equipment, communication systems, and other scenarios; The connection between the wire harness and the terminal block is achieved by screwing and pressing the wire end of the wire harness. On some devices with large vibrations, relying solely on the above connection strength cannot ensure the stability of the circuit connection. Generally, a pressing piece is used to position the insulating end of the wire harness. During later maintenance, it is necessary to remove and reinstall the pressing piece of the wire harness. The later maintenance operation is cumbersome and needs to be improved. Therefore, we propose a wiring positioning device for a terminal block. Summary of the Invention

[0003] In view of the above technical problems in the related art, the present invention provides a wiring positioning device for a terminal block, which can solve the above problems.

[0004] To achieve the above technical objectives, the technical solution of the present invention is realized as follows: A wiring positioning device for a terminal block includes a terminal block. The incoming line end and the outgoing line end of the terminal block are both fixedly connected with wire harnesses by screws, and wire harness positioning structures for clamping and positioning the wire harnesses are arranged at the incoming line end and the outgoing line end of the terminal block; The wire harness positioning structure includes a housing. A threaded hole and a through hole are sequentially formed from the outside to the inside on one end face of the housing. A sleeve is threadedly connected in the threaded hole. A back plate is fixedly arranged on the other end face of the housing by screws. A plurality of linear push rod motors are fixedly arranged on the surface of the back plate. A spring is hung on the push rod end of each linear push rod motor. The other end of each spring is hung on one end of an adapter plate. An internal threaded cylinder is fixedly arranged at the other end of the adapter plate. A connecting rod is threadedly connected in the internal threaded cylinder. The other end of the connecting rod is fixedly connected with a double-shaft rod seat. Claw jaws are hinged at both ends of the double-shaft rod seat, and the claw jaws are in close contact with the inner wall of the sleeve; A plurality of linear push rod motors are all electrically connected to a motor controller through wires.

[0005] Further, the claw jaws at both ends of the double-shaft rod seat are both zigzag-shaped, and the two claw jaws approach each other when moving into the sleeve.

[0006] Further, rings are fixedly arranged at both ends of the spring, and climbing buckles are arranged on the push rod end of the linear push rod motor and one end face of the adapter plate, and the climbing buckles are hung on the rings.

[0007] Furthermore, a ring platform is integrally formed on the outer circumferential surface of the sleeve, and the outer diameter of the ring platform is 3 mm larger than that of the threaded hole.

[0008] Furthermore, the distance between the two linear push rod motors is set to be 8 cm to 10 cm.

[0009] Furthermore, the push rod end of the linear push rod motor penetrates through the back plate, and the spring is located between the back plate and the connecting plate.

[0010] Furthermore, the connecting rod is slidably sleeved inside the through hole.

[0011] Advantages of the present invention: After the wire harness is connected to the terminal block, the insulating layer end of the wire harness is clamped with the clamping jaw by the device of the present application. By uniformly controlling the retraction of the push rod of the linear push rod motor through the controller, the wire harness can be uniformly clamped and positioned, improving the connection stability of the wire harness, thereby improving the circuit stability. When the wire harness needs to be repaired, only the controller needs to uniformly control the extension of the linear push rod motor to release the positioning of the wire harness; The inclined surface of the clamping jaw is used in cooperation with the sleeve to clamp and position the wire harness. Compared with a complex clamping jaw structure system, the structure of the present application is more concise, has a lower failure rate, and a lower maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] The present invention will be further described in detail below with reference to the drawings.

[0014] Figure 1 is a structural schematic diagram of the clamping jaw and the sleeve; Figure 2 is a partial cross-sectional view of the wire harness positioning structure; Figure 3 is an assembly schematic diagram of the wire harness positioning structure, the terminal block, and the wire harness.

[0015] In the figure: 1. Housing; 101. Through hole; 2. Back plate; 3. Linear push rod motor; 4. Sleeve; 401. Ring platform; 402. Threaded hole; 5. Clamping jaw; 6. Spring; 7. Connecting plate; 701. Internal threaded cylinder; 8. Biaxial rod seat; 9. Connecting rod; 10. Wire harness; 11. Terminal block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0017] As Figures 1-3 shown, a wiring positioning device for a terminal block is disclosed according to the present invention, which includes a terminal block 11. The inlet end and the outlet end of the terminal block 11 are both fixedly connected with wire harnesses 10 by screws. The inlet end and the outlet end of the terminal block 11 are both provided with wire harness positioning structures for clamping and positioning the wire harnesses. The wire harness positioning structure includes a housing 1. A threaded hole 402 and a through hole 101 are sequentially formed in the outer-to-inner direction on one side end face of the housing 1. A sleeve 4 is threadedly connected in the threaded hole 402. A back plate 2 is fixedly arranged on the other side end face of the housing 1 by screws. A plurality of linear push rod motors 3 are fixedly arranged on the surface of the back plate 2. The push rod end of each linear push rod motor 3 is hooked with a spring 6. The other end of each spring 6 is hooked to one end of a connecting plate 7. The other end of the connecting plate 7 is fixedly provided with an internally threaded cylinder 701. An inner threaded connection rod 9 is connected in the internally threaded cylinder 701. The other end of the connecting rod 9 is fixedly connected with a double-shaft rod seat 8. Both ends of the double-shaft rod seat 8 are hinged with clamping claws 5. The clamping claws 5 are in fitting contact with the inner wall of the sleeve 4. The push rod end of the linear push rod motor 3 penetrates through the back plate 2. The spring 6 is located between the back plate 2 and the connecting plate 7. The connecting rod 9 is slidably sleeved inside the through hole 101. A plurality of linear push rod motors 3 are all electrically connected with a motor controller through wires.

[0018] Embodiment 1: The double-axis rod seat 8 is composed of a seat body and a double-axis rod. A round hole is provided at the end of the jaw 5, and a bearing is inlaid in the round hole. The inner ring of the bearing is inlaid and matched with the shaft rod to realize the hinge connection between the jaw 5 and the double-axis rod seat 8. The installation steps of the device are as follows: Thread the external thread section of the sleeve 4 with the threaded hole 402 until the ring platform 401 fits the surface of the housing 1. Pass the connecting rod 9 of the double-axis rod seat 8 through the inside of the sleeve 4 and the connecting rod 9 in sequence until the end of the connecting rod 9 is threadedly connected with the internal threaded cylinder 701 of the connection plate 7. Keep the two jaws 5 perpendicular to the wire harness threading direction. Then, buckle the rings at both ends of the spring 6 with the push rod end of the linear push rod motor 3 and the climbing buckle at one end of the connection plate 7 in sequence. Fasten the back plate 2 and the housing 1 by screws. Finally, fix the back plate 2 on both sides of the terminal block 11. Initial state: Control the push rods of all the linear push rod motors 3 to extend through the controller, so that the jaws 5 are unfolded. After the wire harness 10 is matched with the terminal block 11, it is convenient to snap the wire harness 10 into the two jaws 5. After all the wire harnesses are placed in the two jaws 5, control the push rods of all the linear push rod motors 3 to retract in place. First, the spring 6 is stretched, and then the spring 6 generates a return force due to the stretching, thereby lifting the connecting rod 9. Due to the contact force between the inclined surface of the jaw 5 and the sleeve 4, when the jaw 5 moves towards the inside of the sleeve 4, the two jaws 5 merge and close, thereby clamping and positioning the insulating outer surface of the wire harness; when the wire harness needs to be repaired, only the controller needs to uniformly control the extension of the linear push rod motor 3 to realize the removal of the positioning of the wire harness. The inclined surface of the jaw is used in cooperation with the sleeve 4 to realize the clamping and positioning of the wire harness by the jaw. Compared with the complex jaw structure system, the structure of this application is more concise, the failure rate is lower, and the maintenance cost is low.

[0019] In the preferred technical solution, the jaws 5 at both ends of the double-axis rod seat 8 are both zigzag. When the two jaws 5 move towards the inside of the sleeve 4, the two jaws 5 approach each other. The jaw 5 is made of stainless steel as a whole, and a rubber layer is provided on the surface to protect the wire harness. Due to the contact force between the inclined surface of the jaw 5 and the sleeve 4, when the jaw 5 moves towards the inside of the sleeve 4, the two jaws 5 merge and close, thereby clamping and positioning the insulating outer surface of the wire harness.

[0020] In the preferred technical solution, rings are fixedly provided at both ends of the spring 6, and climbing buckles are provided on the push rod end of the linear push rod motor 3 and one end face of the connection plate 7. The climbing buckle is hooked with the ring. The advantage of the structure of the climbing buckle is that it can be stably matched with and removed from the rings at both ends of the spring 6, which is convenient for replacing accessories. The spring 6 connects the linear push rod motor 3 and the connection plate 7. The elastic force of the spring 6 can not only soften the force generated by the asynchronous movement of the linear push rod motor 3, but also provide the clamping force of the jaw when pulling the jaw to close. The spring 6 is a hard spring made of high-carbon steel with a large elastic coefficient, which can soften the force generated by the asynchronous movement of the linear push rod motor 3 while providing the clamping force of the jaw.

[0021] In a preferred technical solution, an annular platform 401 is integrally formed on the outer circumferential surface of the sleeve 4. The outer diameter of the annular platform 401 is 3 mm larger than that of the threaded hole 402. The fact that the annular platform 401 fits the surface of the housing 1 indicates that the sleeve 4 is assembled in place, avoiding the thread slipping due to excessive force.

[0022] In a preferred technical solution, the distance between the two linear push rod motors 3 is set to 8 cm to 10 cm. Setting this distance ensures that the connecting plate 7 can pull the claw 5 to retract while minimizing the number of linear push rod motors 3 invested, thereby reducing costs.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wiring positioning device for a terminal block, comprising a terminal block (11), wherein both the incoming line end and the outgoing line end of the terminal block (11) are fixedly connected with wire harnesses (10) by screws, and it is characterized in that: Both the inlet end and the outlet end of the terminal block (11) are provided with wire harness positioning structures for clamping and positioning the wire harness; The wire harness positioning structure includes a housing (1). On one side end face of the housing (1), a threaded hole (402) and a through hole (101) are successively formed from outside to inside. A sleeve (4) is threadedly connected in the threaded hole (402). On the other side end face of the housing (1), a back plate (2) is fixedly arranged by screws. A plurality of linear push rod motors (3) are fixedly arranged on the surface of the back plate (2). The push rod end of each linear push rod motor (3) is hooked with a spring (6). The other end of each spring (6) is hooked to one end of an adapter plate (7). The other end of the adapter plate (7) is fixedly provided with an internally threaded cylinder (701). An adjusting rod (9) is threadedly connected in the internally threaded cylinder (701). The other end of the adjusting rod (9) is fixedly connected to a double-shaft rod seat (8). Claw jaws (5) are hinged at both ends of the double-shaft rod seat (8). The claw jaws (5) are in close contact with the inner wall of the sleeve (4); The plurality of linear push rod motors (3) are all electrically connected to a motor controller through wires.

2. The wiring positioning device for a terminal block according to claim 1, wherein The claw jaws (5) at both ends of the double-shaft rod seat (8) are both in a folded line shape. When the two claw jaws (5) move into the sleeve (4), the two claw jaws (5) approach each other.

3. A terminal block wiring positioning device according to claim 1, characterized in that, Rings are fixedly arranged at both ends of the spring (6). Mountaineering buckles are arranged on the push rod end of the linear push rod motor (3) and one end face of the adapter plate (7). The mountaineering buckles are hooked to the rings.

4. The wiring positioning device for a terminal block according to claim 1, characterized in that An annular platform (401) is integrally formed on the outer circumferential surface of the sleeve (4). The outer diameter of the annular platform (401) is 3 mm larger than that of the threaded hole (402).

5. A terminal block wiring positioning device according to claim 1, characterized in that, The distance between the two linear push rod motors (3) is set to be 8 cm to 10 cm.

6. The wiring positioning device for a terminal block according to claim 1, characterized in that, The push rod end of the linear push rod motor (3) penetrates through the back plate (2). The spring (6) is located between the back plate (2) and the adapter plate (7).

7. The wiring positioning device for a terminal block according to claim 1, characterized in that, The adjusting rod (9) is slidably sleeved inside the through hole (101).

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