Elastic lock type quick-release drainage wire clamp

Abstract

The invention is suitable for the technical field of electric power circuit operation tools, and particularly relates to an elastic lock type quick release drainage wire clamp, which comprises a first insulating sleeve, one end of the first insulating sleeve is connected with an upper clamping seat, the surface of the upper clamping seat is movably provided with a movable clamping claw, and the interior of the first insulating sleeve is slidably connected with a second insulating sleeve. One end of the interior of the second insulating sleeve is connected with a pushing stand column, and one end of the pushing stand column is movably connected with a lower clamping seat. According to the device, the feeding lead screw driving structure, the one-way locking mechanism and the pressing unlocking structure are integrally arranged, so that continuous clamping of a wire can be achieved in the screwing and pushing process of the device, the locking state is automatically kept through clamping matching of the locking part and the locking thread structure after clamping, reverse loosening is prevented, and the connection reliability is improved.

Description

Technical Field

[0001] This invention relates to the field of power line operation tools, specifically a spring-lock type quick-release lead wire clamp. Background Technology

[0002] During power line maintenance and live-line work, it is often necessary to use drain clamps to temporarily connect and drain conductors. Existing drain clamps mostly use threaded or bolted fastening structures, which require repeated tightening to complete the clamping process, making the operation cumbersome. Especially in high-altitude or live-line working environments, this not only increases the working time but also raises the operational difficulty and labor intensity.

[0003] Meanwhile, existing drain clamps, once clamped, still require reverse rotation or gradual loosening of the structure for disassembly, making rapid release difficult and impacting overall operational efficiency. Furthermore, different wire specifications often necessitate repeated adjustments to the clamping position or tool changes during use, further reducing ease of use. Therefore, providing a drain clamp that is easy to operate and enables rapid clamping and unlocking is of great significance. Summary of the Invention

[0004] The purpose of this invention is to provide a spring-lock type quick-release drain clamp, which aims to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A spring-lock type quick-release drain clamp includes a first insulating sleeve, one end of which is connected to an upper clamping seat, and the surface of the upper clamping seat is movably provided with a movable clamping claw. A second insulating sleeve is slidably connected inside the first insulating sleeve, and one end of the second insulating sleeve is connected to a push column. One end of the push column is movably connected to a lower clamping seat.

[0007] A locking sleeve is fitted onto the outer side of the first insulating sleeve. A feed screw is provided inside the locking sleeve. One end of the feed screw is connected to a screw handle, and the feed screw is connected to the second insulating sleeve.

[0008] The locking sleeve is provided with a locking mechanism, which is used to axially lock the feed screw and release it under the action of external force, so as to realize the limiting and release of the feed screw.

[0009] Furthermore, the push column is fixedly connected to the second insulating sleeve, the second insulating sleeve is fixedly connected to the feed screw, and the feed screw is fixedly connected to the screwing handle to form an integrated transmission structure.

[0010] Furthermore, the locking mechanism includes an unlocking press seat disposed on the surface of the locking sleeve, a locking button rotatably connected inside the unlocking press seat, a return spring disposed between the locking button and the locking sleeve, a locking through hole opened on the surface of the locking sleeve, one end of the locking button passing through the locking through hole and extending into the interior of the locking sleeve, a locking part disposed at this end of the locking button, and a locking thread structure with a one-way limiting function disposed on the surface of the feed screw, the locking part being used to engage with the locking thread structure to form a locking effect.

[0011] Furthermore, the surface of the lower clamping seat is provided with a mounting through hole, one end of the push column is inserted into the mounting through hole, the surface of the push column is provided with an annular groove, and the surface of the lower clamping seat is provided with a connecting hole. A pivot pin is provided through the connecting hole and the annular groove to realize the rotatable connection between the push column and the lower clamping seat.

[0012] Furthermore, one end of the movable gripper is provided with an arc-shaped surface.

[0013] Furthermore, the surface of the movable gripper is provided with several anti-slip teeth.

[0014] Furthermore, the surface of the upper clamping seat is provided with guide posts, the surface of the movable clamping claw is provided with guide sliding holes, the guide posts are disposed through the guide sliding holes, and the surfaces of the movable clamping claw and the upper clamping seat are both provided with hanging posts, and the hanging posts on the surfaces of both are connected to a tension spring.

[0015] Furthermore, a clamping force sensor is installed inside the mounting housing. One end of the clamping force sensor passes through the upper clamping seat and extends above the lower clamping seat to detect the clamping force.

[0016] Furthermore, the interior of the mounting housing is also equipped with a power supply battery and a circuit board, and the power supply battery is electrically connected to the clamping force sensor.

[0017] Furthermore, an insulating operating rod is fitted onto the outer side of the first insulating sleeve.

[0018] The spring-lock type quick-release drain cable clamp provided by the present invention has the following beneficial effects:

[0019] This invention integrates a feed screw drive structure, a one-way locking mechanism, and a press-to-unlock structure. This allows for continuous clamping of the wire during the screwing and pushing process. After clamping, the locking part automatically maintains the locked state through the interlocking action of the locking thread structure, preventing reverse loosening and improving connection reliability. Simultaneously, the operator can quickly release the lock by pressing the unlocking button, allowing the feed screw to be released promptly, thus enabling rapid disassembly of the drain clamp and significantly improving the efficiency of live-line work. Furthermore, the movable clamping claw, with the cooperation of the guide post, guide slide hole, and tension spring, possesses self-adaptive clamping capability, adapting to wires of different outer diameters, further improving clamping stability and operational safety. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a spring-lock type quick-release drain clamp;

[0021] Figure 2 This is a partially enlarged schematic diagram of a spring-lock type quick-release drain wire clamp;

[0022] Figure 3 A schematic diagram of the movable clamping claw in a spring-lock type quick-release drain wire clamp;

[0023] Figure 4 Another perspective view of the overall structure of a spring-lock type quick-release drain cable clamp;

[0024] Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point A;

[0025] Figure 6 A longitudinal sectional view of a spring-lock type quick-release drain cable clamp;

[0026] Figure 7 for Figure 6 A partial sectional view of the upper and middle sections;

[0027] Figure 8 for Figure 6 A partial sectional view of the lower and middle structure;

[0028] Figure 9 A schematic diagram of the clamping head mounting base and connecting column of a spring-lock type quick-release drain cable clamp;

[0029] Figure 10 for Figure 9 A schematic diagram of the cross-sectional structure;

[0030] Figure 11 This is an exploded structural diagram of the clamping head mounting base and connecting column of a spring-lock type quick-release drain clamp.

[0031] In the diagram: 1. Mounting cover; 2. Upper clamping seat; 3. Insulating operating rod; 4. First insulating sleeve; 5. Locking sleeve; 6. Turning handle; 7. Clamping force sensor; 8. Tension spring; 9. Guide post; 10. Guide slide hole; 11. Movable clamping claw; 12. Lower clamping seat; 13. Push column; 14. Arc-shaped surface; 15. Anti-slip teeth; 16. Unlocking press seat; 17. Reset spring; 18. Locking button; 19. Second insulating sleeve; 20. Feed screw; 21. Locking through hole; 22. Rotary pin; 23. Annular groove; 24. Mounting through hole; 25. Connecting hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0034] like Figures 1-11 As shown in the figure, an embodiment of the present invention provides a spring-lock type quick-release drain clamp, including a first insulating sleeve 4, one end of the first insulating sleeve 4 is connected to an upper clamping seat 2, and the surface of the upper clamping seat 2 is movably provided with a movable clamping claw 11. The interior of the first insulating sleeve 4 is slidably connected to a second insulating sleeve 19, and one end of the interior of the second insulating sleeve 19 is connected to a push column 13. One end of the push column 13 is movably connected to a lower clamping seat 12.

[0035] A locking sleeve 5 is fitted onto the outer side of the first insulating sleeve 4. A feed screw 20 is installed inside the locking sleeve 5. One end of the feed screw 20 is connected to a turning handle 6, and the feed screw 20 is connected to the second insulating sleeve 19. The push column 13 is fixedly connected to the second insulating sleeve 19, the second insulating sleeve 19 is fixedly connected to the feed screw 20, and the feed screw 20 is fixedly connected to the turning handle 6, forming an integrated transmission structure.

[0036] The locking sleeve 5 is equipped with a locking mechanism, which is used to axially lock the feed screw 20 and release it under the action of external force, so as to realize the limiting and release of the feed screw 20.

[0037] The locking mechanism includes an unlocking press seat 16 disposed on the surface of the locking sleeve 5. A locking button 18 is rotatably connected inside the unlocking press seat 16. A return spring 17 is disposed between the locking button 18 and the locking sleeve 5. A locking through hole 21 is formed on the surface of the locking sleeve 5. One end of the locking button 18 passes through the locking through hole 21 and extends into the interior of the locking sleeve 5. A locking part is provided at this end of the locking button 18. The surface of the feed screw 20 is provided with a locking thread structure with a one-way limiting function. The locking part is used to engage with the locking thread structure to form a locking effect. The locking thread structure is preferably a sawtooth thread structure or a ratchet structure, and the locking part is a snap-fit ​​protrusion or snap-fit ​​block structure that engages with the locking thread structure.

[0038] The surface of the lower clamping seat 12 is provided with a mounting through hole 24. One end of the push column 13 is inserted into the mounting through hole 24. The surface of the push column 13 is provided with an annular groove 23, and the surface of the lower clamping seat 12 is provided with a connecting hole 25. A pivot pin 22 is provided through the interior of the connecting hole 25 and the annular groove 23 to realize the rotatable connection between the push column 13 and the lower clamping seat 12.

[0039] In one embodiment of the present invention, this device is mainly applied to the rapid connection and disconnection of the lead wire during live-line work on power lines, and is particularly suitable for temporary lead wire connections of conductors with different outer diameters. Traditional lead wire clamps usually rely on manual repeated tightening or loosening, which is cumbersome and poses safety hazards at heights or in live environments. Furthermore, the clamping force is difficult to control precisely, easily leading to insecure clamping or damage to the conductor. The present invention, by setting a first insulating sleeve 4 and its external insulating operating structure, allows the operator to complete the clamping and releasing operations from a safe distance, and achieves rapid and reliable mechanical clamping through the internal feeding and locking structure.

[0040] In the specific operation, the operator first drives the feed screw 20 to rotate by turning the handle 6. Since the feed screw 20 is fixedly connected to the second insulating sleeve 19 and threadedly connected to the locking button 18, the rotation of the feed screw 20 is converted into linear motion of the second insulating sleeve 19 along the axis of the first insulating sleeve 4. The second insulating sleeve 19 further drives the push column 13, which is fixedly connected to it, to move synchronously, thereby pushing the lower clamping seat 12 closer to the movable clamping claw 11, realizing the gradual clamping of the wire. In this process, the upper clamping seat 2 and the movable clamping claw 11 form a clamping structure on one side, and the lower clamping seat 12, as the clamping component on the other side, completes the clamping closure through the feeding action of the push column 13, forming a stable clamping channel as a whole.

[0041] During clamping, as the feed screw 20 continues to rotate, the distance between the lower clamping seat 12 and the movable clamping jaw 11 gradually decreases. After the wire is clamped, the feed screw 20 can be further fine-tuned to increase the clamping force, thereby ensuring the reliability of the electrical connection. Simultaneously, the locking mechanism begins to function: under the action of the return spring 17, the locking button 18 always tends to move inwards towards the locking sleeve 5, and its locking part contacts the locking thread structure on the surface of the feed screw 20 through the locking through hole 21. When the feed screw 20 rotates forward, the locking part can achieve a tooth-crossing movement guided by the locking thread structure. When there is a tendency for reverse loosening, the locking part will engage with the locking thread structure, thereby preventing the feed screw 20 from rotating in the opposite direction or sliding directly, achieving a one-way limiting and locking effect.

[0042] Alternatively, before clamping, press the locking button 18 to disengage the locking part from the locking thread structure, thereby releasing the locking mechanism. Then, the user can directly push and turn the handle 6, the feed screw 20, the second insulating sleeve 19, and the push column 13 to make the lower clamping seat 12 abut against the wire. After releasing the locking button 18, the locking mechanism resumes its function, locking and clamping the wire, and then performing a fine-tuning operation.

[0043] When it is necessary to disassemble the lead wire, press the unlocking press seat 16, which will cause the locking button 18 to rotate outward against the return spring 17, so that the locking part disengages from the locking thread structure of the feed screw 20 and the locking is released. Subsequently, under the action of gravity, the handle 6, feed screw 20, second insulating sleeve 19, push column 13 and lower clamping seat 12 move axially away from the movable clamping claw 11 to release the wire, thereby completing the quick disassembly and realizing the spring lock function.

[0044] In terms of structural principle, this invention integrates feed drive and anti-loosening locking into one unit by combining "rotation-linear transmission" and "one-way locking". Specifically, the connection between the feed screw 20 and the second insulating sleeve 19 achieves stable axial transmission, while the snap-fit ​​between the locking button 18 and the locking thread structure constitutes a reliable self-locking unit. This allows the device to remain stable without continuous force during clamping, preventing loosening due to vibration or external force, thus forming a locking structure with one-way overrun and reverse self-locking characteristics. Simultaneously, the push column 13 and the lower clamping seat 12 are rotatably connected via a pivot pin 22, allowing the lower clamping seat 12 to adaptively adjust its angle during clamping, thereby better fitting different specifications of wires and improving clamping stability and contact reliability.

[0045] The beneficial effects of the present invention are as follows: On the one hand, by cooperating with the feed screw 20 and the locking mechanism, the clamping process is continuously controllable and automatically locked, which significantly improves the operating efficiency and reduces the labor intensity; in addition, the first insulating sleeve 4 and related insulating structures are provided to effectively improve the safety of the live operation process and reduce the risk of personnel directly contacting the live body.

[0046] In terms of application prospects, this invention can be widely used in power maintenance, line upkeep, and emergency repair scenarios, and is especially suitable for current-draining connection operations in live-line working environments. Its compact structure, simple operation, and reliable clamping make it an effective replacement for traditional current-draining clamps that require multiple manual tightenings, giving it significant potential for widespread adoption and engineering applications.

[0047] In this embodiment, one end of the movable clamping claw 11 is provided with an arc-shaped surface 14, which is used to form a close contact with the outer surface of the wire to increase the contact area and disperse the clamping stress, thereby improving the clamping stability and reducing the risk of damage to the wire.

[0048] In this embodiment, the surface of the movable clamping claw 11 is provided with a plurality of anti-slip teeth 15, which are used to increase the contact friction between the claw and the wire and to limit the wire, thereby effectively preventing the wire from slipping under stress or vibration conditions and improving the clamping reliability.

[0049] In this embodiment, the surface of the upper clamping seat 2 is provided with a guide post 9, and the surface of the movable clamping claw 11 is provided with a guide sliding hole 10. The guide post 9 is disposed through the guide sliding hole 10 to guide and limit the movement of the movable clamping claw 11, so that it moves stably in a predetermined direction.

[0050] Meanwhile, both the movable clamping claw 11 and the upper clamping seat 2 are provided with hanging posts, and a tension spring 8 is connected between them to provide a continuous elastic preload to the movable clamping claw 11, so that it can adaptively fit wires of different specifications.

[0051] Through the above-mentioned structural cooperation, the movable clamping claw 11 maintains a stable posture under the guidance and fully fits against the surface of the wire under the action of the tension spring 8, so that the anti-slip teeth 15 can form more effective contact with the wire. This avoids the situation where the anti-slip teeth 15 are insufficient in contact with wires of different specifications, thereby improving the anti-slip effect and preventing the wire from rotating or shaking when the surface is wet or relatively smooth, thus improving the clamping stability and the reliability of the electrical connection.

[0052] In this embodiment, a clamping force sensor 7 is installed inside the mounting housing 1. One end of the clamping force sensor 7 passes through the upper clamping seat 2 and extends above the lower clamping seat 12 to detect the clamping force. The clamping force sensor 7 is integrally set with the clamping structure, so that the detection result can directly reflect the force state of the clamping component.

[0053] The mounting housing 1 also houses a power supply battery and a circuit board, which are electrically connected to the clamping force sensor 7. The clamping force sensor 7 detects the clamping force applied by the lower clamping seat 12 to the wire in real time, processes the signal through the circuit board, and is powered by the battery. This allows the operator to adjust the feed screw 20 based on the detection results, achieving precise control of the clamping force. Simultaneously, the circuit board can be connected to a display screen, indicator lights, or other information output components to visually display or indicate the clamping force, enabling the operator to monitor the clamping status in real time. This avoids unreliable connections or wire damage caused by insufficient or excessive clamping force, further improving the safety and stability of the device.

[0054] In this embodiment, an insulating operating rod 3 is sleeved on the outer side of the first insulating sleeve 4, which is used for operation by the operator and provides electrical insulation protection.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spring-lock type quick-release drain clamp, comprising a first insulating sleeve (4), characterized in that: One end of the first insulating sleeve (4) is connected to an upper clamping seat (2), and the surface of the upper clamping seat (2) is movably provided with a movable clamping claw (11). The interior of the first insulating sleeve (4) is slidably connected to a second insulating sleeve (19), and one end of the interior of the second insulating sleeve (19) is connected to a push column (13). One end of the push column (13) is movably connected to a lower clamping seat (12). A locking sleeve (5) is sleeved on the outside of the first insulating sleeve (4). A feed screw (20) is provided inside the locking sleeve (5). One end of the feed screw (20) is connected to a screw handle (6), and the feed screw (20) is connected to the second insulating sleeve (19). The locking sleeve (5) is provided with a locking mechanism, which is used to axially lock the feed screw (20) and release it under the action of external force, so as to realize the limiting and release of the feed screw (20).

2. The spring-lock type quick-release drain clamp according to claim 1, characterized in that, The push column (13) is fixedly connected to the second insulating sleeve (19), the second insulating sleeve (19) is fixedly connected to the feed screw (20), and the feed screw (20) is fixedly connected to the screw handle (6) to form an integrated transmission structure.

3. The spring-lock type quick-release drain clamp according to claim 1, characterized in that, The locking mechanism includes an unlocking press seat (16) disposed on the surface of the locking sleeve (5). The unlocking press seat (16) is rotatably connected to a locking button (18). A return spring (17) is disposed between the locking button (18) and the locking sleeve (5). The surface of the locking sleeve (5) is provided with a locking through hole (21). One end of the locking button (18) passes through the locking through hole (21) and extends into the interior of the locking sleeve (5). The locking part is provided at this end of the locking button (18). The surface of the feed screw (20) is provided with a locking thread structure with a one-way limiting function. The locking part is used to engage with the locking thread structure to form a locking effect.

4. The spring-lock type quick-release drain clamp according to claim 1, characterized in that, The surface of the lower clamping seat (12) is provided with an installation through hole (24), one end of the push column (13) is inserted into the installation through hole (24), the surface of the push column (13) is provided with an annular groove (23), and the surface of the lower clamping seat (12) is provided with a connecting hole (25). A pivot pin (22) is provided through the interior of the connecting hole (25) and the annular groove (23) to realize the rotational connection between the push column (13) and the lower clamping seat (12).

5. The spring-lock type quick-release drain clamp according to claim 1, characterized in that, One end of the movable gripper (11) is provided with an arc-shaped surface (14).

6. The spring-lock type quick-release drain clamp according to claim 1, characterized in that, The surface of the movable gripper (11) is provided with several anti-slip teeth (15).

7. A spring-lock type quick-release drain clamp according to claim 6, characterized in that, The surface of the upper clamping seat (2) is provided with a guide post (9), and the surface of the movable clamping claw (11) is provided with a guide sliding hole (10). The guide post (9) is disposed through the guide sliding hole (10). The surfaces of the movable clamping claw (11) and the upper clamping seat (2) are both provided with hanging posts, and the hanging posts on both surfaces are connected to a tension spring (8).

8. A spring-lock type quick-release drain clamp according to claim 1, characterized in that, A clamping force sensor (7) is installed inside the mounting cover (1). One end of the clamping force sensor (7) passes through the upper clamping seat (2) and extends above the lower clamping seat (12) to detect the clamping force.

9. A spring-lock type quick-release drain wire clamp according to claim 8, characterized in that, The mounting cover (1) is also equipped with a power supply battery and a circuit board, and the power supply battery is electrically connected to the clamping force sensor (7).

10. A spring-lock type quick-release drain wire clamp according to claim 1, characterized in that, An insulating operating rod (3) is sleeved on the outside of the first insulating sleeve (4).

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