Strain clamp with stable connection

Abstract

The utility model discloses a strain clamp with stable connection, which comprises a clamp body, two inner sides of the clamp body are provided with clamping pieces, the clamping pieces are provided with pushing blocks, the pushing blocks are fixedly connected with the clamp body through screws, the clamping pieces are provided with threading holes for accommodating wire groups, and the threading holes are connected with the clamping pieces through screws. The wire clamp body is provided with a plurality of wire penetrating holes, the wire penetrating holes are provided with a plurality of clamping plates at equal intervals from left to right, the inner walls of the clamping plates are provided with a plurality of tooth parts protruding at equal intervals, and springs are arranged in the clamping pieces and act on the two ends of the clamping plates so that the clamping plates can move towards the middle of the wire clamp body. The tooth part is embedded into the outer wall of the wire group, so that the friction force is enhanced; the clamping force of the clamping plate is dynamically adjusted by pushing the clamping plate through the spring according to the real-time change of the diameter of the wire set, so that the tooth part is always kept in close contact with the outer wall of the wire set, the phenomena of connection loosening and loosening are effectively prevented, and the connection stability of the wire clamp body and the clamping plate is further improved through the screw.

Description

Technical Field

[0001] This utility model relates to the field of power fittings technology, and in particular to a tension clamp with stable connection. Background Technology

[0002] Tension clamps are hardware used to fix conductors to withstand conductor tension and to hang conductors on tension strings or towers.

[0003] In transmission lines, cable assemblies are typically secured with clamps. However, changes in the external environment, such as thermal expansion and contraction due to temperature variations or the effects of wind, can cause tension on the cable assemblies, pulling on the clamps. This pulling action can lead to loosening or even detachment of the connection between the cable assemblies and the clamps, or damage to the cable sheath due to relative friction between them. Therefore, the applicant has developed a useful design to solve the above problems, and the technical solution described below arose from this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the traditional tension clamp design and provide a product that is anti-slip and has a stable connection.

[0005] A stable tension clamp includes a clamp body, with clamping members on both inner sides of the clamp body. Each clamping member has a pushing block, which is connected and fixed to the clamp body by screws. The clamping member has a threading hole for accommodating a wire assembly. The threading hole has a plurality of equally spaced clamping plates from left to right. The inner wall of each clamping plate has a plurality of equally spaced protruding teeth. A spring is provided inside the clamping member and acts on both ends of the clamping plates, causing the clamping plates to move towards the center of the clamp body.

[0006] Preferably, the wire clamp body is provided with a clamping groove for accommodating a clamping member, and the inner wall of the clamping groove is provided with an inclined surface for allowing the clamping member to move in the middle direction.

[0007] Preferably, an anti-detachment part is provided above the clamping groove, and a connecting part is provided between the two anti-detachment parts, located at the end face of the inlet of the clamping groove.

[0008] Preferably, the connecting part is provided with a threaded hole, and the screw is threaded into the threaded hole.

[0009] Preferably, the threading hole has grooves on both sides, the grooves have blind holes for accommodating the spring, the blind holes have through holes, and the other end of the through holes has a countersunk hole.

[0010] Preferably, the clamping plate has pressure-bearing parts at both ends, and the pressure-bearing parts are provided with guide rods that pass through blind holes and through holes. The end of the guide rod is provided with a detachable retaining ring.

[0011] Preferably, the spring is disposed on the outer wall of the guide rod, and the spring abuts against the pressure bearing part and the bottom of the blind hole respectively. Beneficial effects

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) In this utility model, the teeth are embedded in the outer wall of the wire assembly to enhance the friction. The mechanical engagement effectively improves the bonding strength between the wire assembly and the clamping parts. At the same time, in response to the diameter change of the wire assembly caused by environmental temperature fluctuations or tension, the clamping plate is driven by a spring to adaptively adjust the clamping plate. This mechanism can dynamically adjust the clamping force of the clamping plate according to the real-time change of the wire assembly diameter, ensuring that the teeth are always in close contact with the outer wall of the wire assembly, effectively preventing loosening and detachment, and significantly improving the anti-slip performance and connection reliability of the product.

[0014] (2) In this utility model, when the clamping parts are subjected to external force, they move along the preset inclined surface towards the center of the wire clamp body and abut against each other to achieve self-locking and fixing. Then, the pre-tightening force is further applied by the screws to tightly connect the wire clamp body and the clamping parts, further improving the connection stability, preventing loosening, and ensuring reliable product connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a stable tension clamp according to the present invention;

[0016] Figure 2 This is a cross-sectional view of a tension clamp with stable connection according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a tension clamp body for a stable connection according to the present invention;

[0018] Figure 4 This is a side cross-sectional view of a tension clamp with stable connection according to the present invention.

[0019] Figure 5 This utility model Figure 4 A partially enlarged view of part A of a stable tension clamp;

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] Reference numerals: 1. Wire clamp body; 2. Clamping element; 3. Screw; 4. Clamping plate; 5. Spring; 6. Retaining ring; 11. Clamping groove; 12. Inclined surface; 13. Anti-detachment part; 14. Connecting part; 15. Threaded hole; 21. Push block; 22. Wire hole; 23. Groove; 24. Blind hole; 25. Countersunk hole; 41. Toothed part; 42. Pressure bearing part; 43. Guide rod. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0024] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Reference example Figures 1 to 5 A stable tension clamp includes a clamp body 1, clamping members 2 on both inner sides of the clamp body 1, a pushing block 21 on the clamping member 2, the pushing block 21 being connected and fixed to the clamp body 1 by screws 3, the clamping member 2 having a threading hole 22 for accommodating a wire group, the threading hole 22 having a plurality of equally spaced clamping plates 4 from left to right, the inner wall of the clamping plate 4 having a plurality of equally spaced protruding teeth 41, the clamping member 2 having a spring 5 inside, which acts on both ends of the clamping plate 4, causing the clamping plate 4 to move towards the middle of the clamp body 1, the teeth 41 being embedded in the outer wall of the wire group, thereby enhancing the friction, and effectively improving the bonding strength between the wire group and the clamping member 2 through mechanical engagement;

[0026] It is worth mentioning that the wire clamp body 1 is provided with a clamping groove 11 for accommodating the clamping member 2. The inner wall of the clamping groove 11 is provided with an inclined surface 12 for the clamping member 2 to move in the middle direction. By applying a pushing force to the pushing block 21, the clamping member 2 moves along the preset inclined surface 12 towards the center of the wire clamp body 1 when subjected to external force, and abuts against each other tightly to achieve self-locking fixation.

[0027] It is worth mentioning that an anti-detachment part 13 is provided above the clamping groove 11, and a connecting part 14 is provided between the two anti-detachment parts 13 and located at the end face of the entrance of the clamping groove 11. The anti-detachment part 13 prevents the clamping member 2 from detaching from the clamping groove 11.

[0028] It is worth mentioning that the connecting part 14 is provided with a threaded hole 15, and the screw 3 is threaded into the threaded hole 15. The screw 3 further applies a pre-tightening force to tightly connect the wire clamp body 1 and the clamping part 2, further improving the connection stability, preventing loosening, and ensuring reliable product connection.

[0029] It is worth mentioning that grooves 23 are provided on both sides of the thread hole 22. The grooves 23 are provided with blind holes 24 to accommodate the spring 5. The blind holes 24 are provided with through holes. The other end of the through holes is provided with countersunk holes 25. The grooves 23 serve to accommodate the pressure-bearing part 42. The blind holes 24 provide space for the spring 5. The through holes provide guidance for the guide rod 43. The countersunk holes 25 limit the distance of the clamping plate 4. At the same time, the countersunk holes 25 also prevent the retaining ring 6 from protruding from its surface.

[0030] It is worth mentioning that the clamping plate 4 has pressure bearing parts 42 at both ends, and the pressure bearing parts 42 are provided with guide rods 43 that pass through blind holes 24 and through holes. The end of the guide rods 43 is provided with a detachable retaining ring 6.

[0031] It is worth mentioning that the spring 5 is set on the outer wall of the guide rod 43. The spring 5 abuts against the bottom of the pressure bearing part 42 and the blind hole 24 respectively. In response to the diameter change of the wire group caused by the fluctuation of ambient temperature or the effect of tension, the spring 5 pushes the clamping plate 4 to adaptively adjust the mechanism. This mechanism can dynamically adjust the clamping force of the clamping plate 4 according to the real-time change of the wire group diameter, ensuring that the teeth 41 always maintain close contact with the outer wall of the wire group, effectively preventing loosening and detachment, and significantly improving the anti-slip performance and connection reliability of the product.

[0032] The above design scheme enables the product to achieve the advantages of anti-slip and stable connection.

[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A strain clamp with stable connection, comprising a clamp body (1), the inner two sides of the clamp body (1) are provided with clamping pieces (2), characterized in that: The clamping member (2) is provided with a pushing block (21), which is connected and fixed to the wire clamp body (1) by a screw (3). The clamping member (2) is provided with a wire hole (22) for accommodating the wire group. The wire hole (22) is provided with several equally spaced clamping plates (4) from left to right. The inner wall of the clamping plate (4) is provided with several equally spaced protruding teeth (41). The clamping member (2) is provided with a spring (5) which acts on both ends of the clamping plate (4) to make the clamping plate (4) move towards the middle of the wire clamp body (1).

2. The connection-stabilized strain clamp according to claim 1, characterized in that: The wire clamp body (1) is provided with a clamping groove (11) for accommodating the clamping member (2), and the inner wall of the clamping groove (11) is provided with an inclined surface (12) for moving the clamping member (2) in the middle direction.

3. The tension clamp with stable connection according to claim 2, characterized in that: An anti-detachment part (13) is provided above the clamping groove (11), and a connecting part (14) is provided between the two anti-detachment parts (13) and located at the end face of the entrance of the clamping groove (11).

4. The connection-stabilized strain clamp according to claim 3, characterized in that: The connecting part (14) is provided with a threaded hole (15), and the screw (3) is threaded into the threaded hole (15).

5. The connection-stabilized strain clamp of claim 1, wherein: The thread hole (22) has grooves (23) on both sides, and the grooves (23) have blind holes (24) for accommodating the spring (5). The blind holes (24) have through holes, and the other end of the through holes has countersunk holes (25).

6. The connection-stabilized strain clamp according to claim 5, characterized in that: The clamping plate (4) has pressure-bearing parts (42) at both ends. The pressure-bearing parts (42) are provided with guide rods (43) that pass through blind holes (24) and through holes. The end of the guide rods (43) is provided with a detachable retaining ring (6).

7. The connection-stabilized strain clamp according to claim 6, characterized in that: The spring (5) is disposed on the outer wall of the guide rod (43), and the spring (5) abuts against the bottom of the pressure bearing part (42) and the blind hole (24) respectively.

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