A fastener

Abstract

The utility model relates to wire clamp technical field, specifically disclose a kind of fixed wire clamp, including first clamp piece, second clamp piece, telescopic module, be equipped with arc slot on second clamp piece, be equipped with adjusting pressure block on arc slot, adjusting pressure block is fixed relative to second clamp piece by fixed part before being pressed;Adjusting pressure block can break the fixed part when being pressed, to make the adjusting pressure block can be deflected relative to arc slot;The present application ensures the accurate positioning of adjusting pressure block before clamping by fixed part, effectively avoids wire slot misplacement;Fixed part is automatically broken after being pressed Trigger pressure block deflection, make two groups of wire slot self-adapting height difference, finally realize the stable, tight and lossless clamping to two diameter difference wires, significantly improve operation reliability and the adaptability of robot automation.

Description

Technical Field

[0001] This utility model relates to the field of wire clamp technology, and in particular to a wire clamp for fixing. Background Technology

[0002] Currently, when performing live-line connection and branch line lead-in work on distribution network lines, wire clamps with double grooves are typically used to achieve electrical connection and mechanical fixation between the main line and the lead-in line, where the installation reliability of the wire clamp is crucial. However, traditional double groove wire clamps have the following shortcomings in practical applications: First, the installation process is cumbersome, requiring frequent replacement of wire clamps of corresponding specifications according to different diameter conductors and lead-in lines; second, to meet the heat generation test requirements under high current conditions, traditional designs often require lengthening the grooves to increase the contact area, making the wire clamp structure bulky and inconvenient to operate; third, there is a lack of positioning or clamping auxiliary structures specifically designed for automated robotic grasping, making it difficult for robotic arms to quickly and accurately position and reliably clamp. In addition, during the screw tightening process, it is essential to ensure that the two grooves of the wire clamp are precisely aligned with the main line and lead-in line at all times; improper operation can easily lead to risks such as wire detachment or cable damage. These complexities pose a significant challenge, especially to scenarios where robotic operations are to be employed, making the design of related mechanical structures and electrical control systems exceptionally complex and costly, severely hindering the mechanization and automation of this operation.

[0003] To address the aforementioned challenges, some technical solutions have attempted improvements, such as the adaptive parallel grooved cable clamp proposed in Chinese Patent Publication No. CN118645823A. This cable clamp assembly includes a first cable clamp and a second cable clamp. The second cable clamp further includes a movable part and a fixed part. The fixed part has an adjustment groove for the movable part to swing along the swing axis. The first cable clamp and the movable part each have at least two grooves along a first direction. A driving component drives the first and second cable clamps to move closer to each other along a second direction, so that the corresponding set of first grooves and the second groove on the movable part clamp their respective cables. This design aims to simplify the installation process, accommodate cables of different diameters, and facilitate automated operation with robots.

[0004] However, the aforementioned patented technology has a key drawback: its movable part can freely deflect in its initial state before the clamping operation. This loose structure means that the position of the wire groove on the movable part may be unstable during the clamping process, making it difficult to accurately position and align with the wire to be clamped below, thus affecting the clamping effect and installation reliability. More specifically, the method of maintaining the initial position of the movable part in this solution (such as using tape for temporary fixation) is unreliable in actual operation. The tape is prone to accidentally falling off during robot operation or transportation, causing the movable part to deflect prematurely or shift its position. This may not only cause repeated hooking failures but may even directly interrupt the entire automated operation process. The new solution in this application is proposed to solve this key reliability problem and the aforementioned high-current heating requirements. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a fixing clamp to solve the above problems.

[0006] A fixed wire clamp includes a first clamp, a second clamp, and a telescopic module for controlling the first clamp and the second clamp to move closer or further apart. The first clamp has two parallel first wire grooves at one end facing the second clamp. The second clamp has an arc-shaped groove, and an adjusting block with a bottom shape matching the arc-shaped groove is provided on the arc-shaped groove. The adjusting block has two second wire grooves, and when the adjusting block is not deflected, the two second wire grooves are respectively located directly below the two first wire grooves. Before being pressed, the adjusting block is fixed relative to the second clamp by at least one fixing member. When the adjusting block is pressed, the fixing member can be broken, allowing the adjusting block to deflect relative to the arc-shaped groove.

[0007] Specifically, the second clamping member includes a bottom shell and a mounting base fixed to the bottom shell; the arc-shaped groove is provided at the upper end of the mounting base; both sides of the upper end of the bottom shell are provided with upwardly extending protective plates, which are used to laterally protect the first clamping member.

[0008] Specifically, the fastener is an I-shaped structure that is narrow in the middle and wide at both ends.

[0009] Specifically, the fastener is a one-piece thermoplastic part.

[0010] Specifically, both the inner wall of the first groove and the inner wall of the second groove are provided with a number of anti-slip textures.

[0011] Specifically, the telescopic module includes a screw and a nut; the nut is fixedly mounted on the mounting base; one end of the screw is threaded into the nut; the other end of the screw passes through the first clamp and is connected to a hexagonal head.

[0012] Specifically, the screw is connected to a limiting member at the end away from the hexagonal head.

[0013] Specifically, the adjusting block has a first slotted hole through which the screw passes, allowing the adjusting block to move relative to the screw when it deflects; the telescopic module also includes a guide rod; one end of the guide rod is fixedly connected to the first clamp, and the other end passes through the mounting base; the adjusting block has a second slotted hole through which the guide rod passes, allowing the adjusting block to move relative to the guide rod when it deflects.

[0014] Specifically, a protective cover is hinged to one end of the first clamp, and the protective cover is used to cover the first clamp and the wire placed in the first wire groove.

[0015] The beneficial effects of this utility model are:

[0016] The fixed wire clamp of this application includes a first clamp, a second clamp, and a telescopic module. The second clamp has an arc-shaped groove, and an adjusting pressure block is provided on the arc-shaped groove. Before being pressed, the adjusting pressure block is fixed relative to the second clamp by a fixing member. When the adjusting pressure block is pressed, the fixing member can be broken, so that the adjusting pressure block can deflect relative to the arc-shaped groove. This application ensures the accurate positioning of the adjusting pressure block before clamping by the fixing member, effectively avoiding wire groove misalignment. After being pressed, the fixing member automatically breaks, triggering the deflection of the pressure block, so that the two sets of wire grooves adaptively form a height difference, ultimately achieving stable, tight, and non-destructive clamping of two wires with different diameters, significantly improving the reliability of operation and the adaptability of robot automation. Attached Figure Description

[0017] Figure 1 This is a perspective view of the fixing clamp according to an embodiment of this application;

[0018] Figure 2 A perspective cross-sectional view of the fixing clamp according to an embodiment of this application. Figure 1 ;

[0019] Figure 3 A perspective cross-sectional view of the fixing clamp according to an embodiment of this application. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the structure of the fixed wire clamp before it holds the wire, according to an embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the structure of the fixed wire clamp after holding the wire according to an embodiment of this application.

[0022] The attached figures are labeled as follows: first clamp 10, second clamp 20, telescopic module 30, first groove 11, adjusting block 40, second groove 41, bottom shell 21, mounting base 22, protective plate 23, thermoplastic part 50, screw 31, nut 32, hexagonal head 33, limiting part 34, guide rod 35, first strip hole 42, second strip hole 43, protective cover 60, and wire 70. Detailed Implementation

[0023] This utility model provides a fixing clamp. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0024] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] Please refer to Figures 1 to 5 This embodiment discloses a fixing clamp, which is applicable to the scenario in which two cables with different diameters need to be clamped and fixed at the same time during live work of power distribution network, such as the parallel connection scenario of clamping the main line cable 70 and the branch line cable 70 at the same time.

[0026] The fixing clamp of this embodiment includes a first clamp 10, a second clamp 20, and a telescopic module 30 for controlling the first clamp 10 and the second clamp 20 to move closer or further apart. The first clamp 10 has two parallel first wire grooves 11 at one end facing the second clamp 20. The second clamp 20 has an arc-shaped groove, and an adjusting block 40 with a bottom shape matching the arc-shaped groove is provided on the arc-shaped groove. The adjusting block 40 has two second wire grooves 41, and the two second wire grooves 41 are located directly below the two first wire grooves 11 when the adjusting block 40 is not deflected. Before being pressed, the adjusting block 40 is fixed to the second clamp 20 by at least one fixing member. When the adjusting block 40 is pressed, the fixing member can be broken so that the adjusting block 40 can deflect relative to the arc-shaped groove.

[0027] During clamping, the telescopic module 30 drives the first clamp 10 to move closer to the second clamp 20. Before contacting the wire 70, the adjusting block 40 maintains a relatively fixed position relative to the second clamp 20 through the fixing member, at which time the two second wire grooves 41 on it are located directly below the two first wire grooves 11 on the first clamp 10. When the first clamp 10 and the adjusting block 40 simultaneously or subsequently contact the two wires 70 with different diameters, the thicker wire 70 will apply pressure to the adjusting block 40 first. This pressure is sufficient to break the fixing member, release the initial constraint on the adjusting block 40, and allow the adjusting block 40 to adaptively deflect around the arc-shaped groove under pressure. As a result of the deflection, the two sets of wire grooves automatically form a height difference when contacting the wire 70: one set of first wire grooves 11 and second wire grooves 41 tightly clamp the thicker wire 70, and the other set of first wire grooves 11 and second wire grooves 41 also tightly clamp the thinner wire 70.

[0028] This embodiment ensures that the second wire groove 41 is accurately aligned with the first wire groove 11 when not under pressure by maintaining the precise initial positioning of the adjusting block 40 with a fixing component before the clamping action is triggered, greatly improving the reliability of the initial clamping stage. The breakable design of the fixing component cleverly releases the lock at the moment of pressure, allowing the adjusting block 40 to automatically deflect as needed, ultimately achieving stable, tight, and damage-free clamping of two wires 70 with significantly different diameters simultaneously, providing a stable and predictable execution foundation for automated robot operation.

[0029] The second clamping member 20 includes a base shell 21 and a mounting base 22 fixed to the base shell 21; an arc-shaped groove is provided at the upper end of the mounting base 22; both sides of the upper end of the base shell 21 have upwardly extending protective plates 23, which are used to laterally protect the first clamping member 10. The protective plates 23 can effectively wrap around and protect the positional stability of the first clamping member 10 during movement, preventing it from lateral displacement or shaking under force during clamping operations, thereby ensuring the accuracy and reliability of the clamping action.

[0030] In a preferred embodiment, the fastener is an I-shaped structure, narrow in the middle and wide at both ends, and is an integrally molded thermoplastic part 50. Before molding, the thermoplastic part 50 is a cylindrical hot-melt plastic column. During installation, this hot-melt plastic column is passed through the two T-shaped holes of the adjusting block 40 and the second clamp 20, and then its two ends are heated to soften it. Pressure is then applied to the softened ends to deform it into a flat shape. After cooling and solidification, the I-shaped thermoplastic part 50 is formed and fixed. The material of the thermoplastic part 50 ensures both a certain strength and toughness, and also ensures that it will not accidentally crack or detach due to accidental asynchronous stress during the shrinkage process of the first clamp 10 or the adjusting block 40 before the wire 70 is clamped. During the locking process, if the two wires 70 are of different diameters, and the thicker wire 70 applies pressure to the adjusting block 40 causing misalignment, the thermoplastic part 50, due to its relatively lower material strength compared to metal, can break even under relatively small pressure. This releases the constraint on the adjusting block 40, allowing it to deflect smoothly to accommodate different wire diameters. If the wires 70 are of the same diameter, no pressure will be generated that would cause misalignment of the adjusting block 40, and the thermoplastic part 50 will not break, nor will it affect the normal clamping function.

[0031] The inner wall surfaces of the first wire groove 11 and the second wire groove 41 are both provided with a number of anti-slip textures. The anti-slip textures can significantly increase the friction between the contact surfaces of the first wire groove 11 and the second wire groove 41 and the wire 70, effectively preventing the wire 70 from sliding or accidentally coming out during the clamping process, thereby ensuring the stability and reliability of the clamping.

[0032] The telescopic module 30 includes a screw 31 and a nut 32; the nut 32 is fixedly mounted on the mounting base 22; one end of the screw 31 is threaded into the nut 32; the other end of the screw 31 passes through the first clamp 10 and is connected to a hexagonal head 33. This telescopic module 30 of the fixed clamp does not have its own power source; its operation relies on an external supporting machine: a motor on the machine drives a wrench, which precisely fits onto and rotates the hexagonal head 33 of the screw 31. Simultaneously, the nut 32, fixed to the mounting base 22, is fixed and cannot rotate, while the hexagonal head 33 of the screw 31 is driven to rotate by the wrench. In this state, the screw 31 achieves precise axial linear movement through the threaded engagement with the nut 32, thereby reliably driving the first clamp 10 and the second clamp 20 closer or further apart. This design not only achieves clamping or loosening operations but also has a simple and reliable structure, and can efficiently complete the drive using an external machine's wrench, making it particularly suitable for the needs of automated machine operations.

[0033] Of course, this embodiment uses two symmetrical screws 31 and two nuts 32, which require two wrenches to be used to synchronously rotate the two hexagonal heads 33 for adjustment.

[0034] A limiting member 34 is connected to the end of the screw 31 away from the hexagonal head 33. The limiting member 34 is a stop bar structure that passes perpendicular to the axis of the screw 31. The two ends of the stop bar extend beyond the outer diameter of the screw 31, forming a physical barrier. Its main function is that during the rotational movement of the screw 31 relative to the nut 32, when the screw 31 is screwed out to a predetermined limit position, the end of the stopping member 34 will directly abut against the mounting base 22 or related components fixedly connected to it, thereby effectively preventing the screw 31 from continuing to rotate and disengaging from the nut 32, and preventing the nut 32 from accidentally coming off the threaded end of the screw 31.

[0035] The adjusting block 40 has a first slotted hole 42 through which the screw 31 passes, allowing relative displacement between the adjusting block 40 and the screw 31 during deflection. The telescopic module 30 also includes a guide rod 35; one end of the guide rod 35 is fixedly connected to the first clamp 10, and the other end passes through the mounting base 22. The adjusting block 40 has a second slotted hole 43 through which the guide rod 35 passes, allowing relative displacement between the adjusting block 40 and the guide rod 35 during deflection. When the adjusting block 40 is subjected to pressure from the wire 70, breaking the fixing member and beginning to deflect, the first slotted hole 42 and the second slotted hole 43 allow the screw 31 and the guide rod 35 to slide or displace relative to each other within the holes. This design cleverly avoids interference with the precise axial drive of the screw 31 and the stable guiding effect of the guide rod 35 on the first clamp 10 due to the deflection movement of the adjusting block 40. At the same time, it ensures that the movements of the screw 31 and guide rod 35 and the movable adjusting block 40 are independent of each other and do not interfere with each other.

[0036] A protective cover 60 is hinged to one end of the first clamp 10. The protective cover 60 covers the first clamp 10 and the wire 70 placed in the first wire groove 11. The protective cover 60 provides comprehensive physical isolation protection for exposed critical metal components. When the protective cover 60 is on, it effectively prevents rainwater, moisture, dust, and other corrosive contaminants from directly contacting metal components such as the screw 31, hexagonal head 33, and guide rod 35. This airtight protection significantly reduces the risk of oxidation and corrosion of these critical moving parts due to environmental exposure (especially outdoor operating environments), thereby ensuring the smooth operation and guiding stability of the telescopic module 30 for a long time and greatly extending the service life of the device.

[0037] The preferred embodiments of this utility model have been described in detail above. However, this invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this invention.

Claims

1. A fixing clamp, comprising a first clamp (10), a second clamp (20), and a telescopic module (30) for controlling the first clamp (10) and the second clamp (20) to move closer or further apart, characterized in that: The first clamp (10) has two parallel first grooves (11) at one end facing the second clamp (20). The second clamp (20) has an arc groove. The arc groove has an adjusting block (40) with a bottom shape that matches the arc groove. The adjusting block (40) has two second grooves (41). When the adjusting block (40) is not deflected, the two second grooves (41) are located directly below the two first grooves (11). Before being pressed, the adjusting block (40) is fixed to the second clamp (20) by at least one fixing member. When the adjusting block (40) is pressed, the fixing member can be broken so that the adjusting block (40) can deflect relative to the arc groove.

2. A fixing clamp according to claim 1, characterized in that: The second clamp (20) includes a bottom shell (21) and a mounting base (22) fixed on the bottom shell (21); the arc groove is provided at the upper end of the mounting base (22); both sides of the upper end of the bottom shell (21) are provided with upwardly extending guard plates (23), and the guard plates (23) are used to laterally protect the first clamp (10).

3. A fixing clamp according to claim 1, characterized in that: The fastener is an I-shaped structure that is narrow in the middle and wide at both ends.

4. A fixing clamp according to claim 3, characterized in that: The fastener is a one-piece thermoplastic part (50).

5. A fixing clamp according to claim 1, characterized in that: The inner wall surface of the first groove (11) and the inner wall surface of the second groove (41) are provided with a number of anti-slip patterns.

6. A fixing clamp according to claim 2, characterized in that: The telescopic module (30) includes a screw (31) and a nut (32); the nut (32) is fixedly mounted on the mounting base (22); one end of the screw (31) is threadedly engaged with the nut (32); the other end of the screw (31) passes through the first clamp (10) and is connected to a hexagonal head (33).

7. A fixing clamp according to claim 6, characterized in that: The screw (31) is connected to a limiting member (34) at the end away from the hexagonal head (33).

8. A fixing clamp according to claim 6, characterized in that: The adjusting block (40) has a first slot (42) through which the screw (31) passes. The first slot (42) allows the adjusting block (40) to have relative displacement with the screw (31) when it deflects. The telescopic module (30) also includes a guide rod (35). One end of the guide rod (35) is fixedly connected to the first clamp (10), and the other end passes through the mounting base (22). The adjusting block (40) has a second slot (43) through which the guide rod (35) passes. The second slot (43) allows the adjusting block (40) to have relative displacement with the guide rod (35) when it deflects.

9. A fixing clamp according to claim 1, characterized in that: One end of the first clamp (10) is hinged with a protective cover (60), which is used to cover the first clamp (10) and the wire (70) placed in the first wire groove (11).

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