A strain clamp with adjustment device

Abstract

The utility model discloses a kind of strain clamp with adjusting device, it relates to high-voltage cable field, and its technical solution main point is including clamp body, the lower contact plate of inside being equipped with up and down free sliding of clamp body, lower contact plate is arc-shaped arrangement, upper contact plate is equipped in the upper side of lower contact plate, the upper contact plate is U-shaped arrangement, and upper contact plate is composed of two mutually inserted rubber plate, and each rubber plate side is slidably arranged along the inner wall of clamp body, the adjusting rod is sleeved outside the clamp body, adjusting rod is U-shaped arrangement, adjusting rod inside is top contact with the top of upper contact plate, reach the effect suitable for different wire specifications, and high degree of fit, simultaneously have the effect of anti-vibration capacity.

Description

Technical Field

[0001] This utility model relates to the technical field of high-voltage cables, specifically to a tension clamp with an adjustment device. Background Technology

[0002] With the rapid development of power application facilities in power distribution networks, tension clamps are required in overhead power systems to anchor and tighten both ends of insulated overhead cables to power poles or towers. Tension clamps are hardware used in high-voltage power transmission to fix conductors, bear conductor tension, and hang conductors on tension strings or towers.

[0003] In the prior art, Chinese patent CN202321634822.6 discloses a tension clamp, which clamps and fixes the cable by means of a moving plate, a damper, a spring, a fixing post, a clamping plate, and a concave plate. However, this tension clamp can only fix one type of cable when in use. Different types of cables require different types of tension clamps, resulting in poor adaptability. It is also inconvenient to prepare tension clamps that correspond to the cable specifications. Furthermore, the fit between the clamp and the cable is insufficient, and there will be movement under external force. Utility Model Content

[0004] The purpose of this invention is to provide a tension clamp with an adjustment device that is suitable for different wire specifications, has a high degree of fit, and is also vibration resistant.

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

[0006] The device includes a wire clamp body, inside which is a lower contact plate that slides freely up and down. The lower contact plate is arc-shaped. Above the lower contact plate is an upper contact plate that is U-shaped and consists of two interlocking rubber plates. The side of each rubber plate slides along the inner wall of the wire clamp body. An adjusting rod is sleeved on the outside of the wire clamp body. The adjusting rod is U-shaped and its inner side contacts the top of the upper contact plate.

[0007] Furthermore, the adjusting rod has a threaded end away from the upper contact plate, and a fixing plate is sleeved on the side of the adjusting rod near the threaded end. The fixing plate has a groove facing the wire clamp body, and the fixing plate abuts against the bottom of the wire clamp body through the groove.

[0008] Furthermore, the threaded end is threadedly connected to a locking nut, and a first spring is fixed between the locking nut and the fixing plate, with the first spring sleeved outside the threaded end.

[0009] The above technical solution facilitates the adjustment of the adjusting rod and reduces the overall structural rigidity.

[0010] Furthermore, one of the rubber sheets has a plug-in block fixed to its side, and the other rubber sheet has a plug-in slot on its side. The number of plug-in blocks and plug-in slots are the same, and each plug-in block is inserted into each plug-in slot.

[0011] Using the above technical solution, the two rubber plates are connected by a plug-in joint, which facilitates installation and is beneficial for future maintenance and replacement.

[0012] Furthermore, a fixing block is fixed to the side of the adhesive plate facing the inner wall of the clamp body, and a groove is provided on the inner wall of the clamp body for the fixing block to slide. The side of the adhesive plate away from the inner wall of the clamp body is inclined, and the inclination angle expands towards the direction of the lower contact plate.

[0013] Using the above technical solution, the upper contact plate slides into the groove through fixing blocks on both sides. The adjusting rod can be moved down according to the size of the wire inside, so as to clamp wires of different specifications. At the same time, due to the mobility of the upper contact plate, the fit is relatively high for wires of different specifications.

[0014] Furthermore, a movable rod is fixed to the bottom of the lower contact plate. Several movable rods are equidistantly arranged along the length of the lower contact plate. Each movable rod is symmetrically arranged. A second spring is fixed to the end of the movable rod away from the lower contact plate. A fixed rod is sleeved on the outside of the second spring. The movable rod slides along the inside of the fixed rod.

[0015] By adopting the above technical solution, after the movable rod moves toward the inside of the fixed rod, it can resist the compression of the second spring. In turn, the friction between the movable rod and the fixed rod can offset the pressure generated by the pulling of the wire, thereby improving the vibration resistance of the wire during use and providing protection for the wire.

[0016] In summary, the beneficial technical effects of this utility model are as follows:

[0017] 1. The upper contact plate is made of two rubber plates. The two rubber plates are connected by a plug-in joint, which is convenient for installation and facilitates future maintenance and replacement.

[0018] 2. An upper contact plate is adopted. The upper contact plate slides into the sliding groove through fixing blocks on both sides. The adjustment rod can be moved down according to the size of the wire inside, so as to clamp wires of different specifications. At the same time, due to the mobility of the upper contact plate, the fit of different specifications of wires is relatively high.

[0019] 3. A movable rod is adopted. After the movable rod moves inward toward the fixed rod, it can resist the compression of the second spring. In turn, the friction between the movable rod and the fixed rod can counteract the pressure generated by the pulling of the wire, thereby improving the vibration resistance of the wire during use and providing protection for the wire. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of a tension clamp with an adjustment device provided in this embodiment;

[0022] Figure 2 This embodiment provides a tension clamp with an adjustment device. Figure 1 A schematic diagram of the side structure;

[0023] Figure 3 This is a cross-sectional schematic diagram of the first connecting pipe and the second connecting pipe of a tension clamp with an adjustment device provided in this embodiment.

[0024] In the diagram, 1. clamp body; 2. lower contact plate; 3. upper contact plate; 4. rubber plate; 5. adjusting rod; 6. fixing plate; 7. groove; 8. locking nut; 9. first spring; 10. plug block; 11. plug groove; 12. fixing block; 13. slide groove; 14. movable rod; 15. second spring; 16. fixing rod. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-3 The present invention provides a technical solution comprising a wire clamp body, wherein the wire clamp body has a lower contact plate that slides freely up and down inside the wire clamp body, the lower contact plate being arc-shaped, and an upper contact plate being located above the lower contact plate, the upper contact plate being U-shaped and composed of two interlocking rubber plates, each rubber plate having its side side sliding along the inner wall of the wire clamp body, and an adjusting rod being sleeved on the outside of the wire clamp body, the adjusting rod being U-shaped, the inner side of the adjusting rod being in contact with the top of the upper contact plate.

[0028] The adjusting rod has a threaded end away from the upper contact plate, and a fixing plate is fitted on the side of the adjusting rod near the threaded end. The fixing plate has a groove facing the wire clamp body, and the fixing plate abuts against the bottom of the wire clamp body through the groove.

[0029] The threaded end is connected to a locking nut, and a first spring is fixed between the locking nut and the fixing plate. The first spring is sleeved on the outside of the threaded end.

[0030] One of the rubber sheets has a plug-in block fixed to its side, and the other rubber sheet has a plug-in slot on its side. The number of plug-in blocks and plug-in slots are the same, and each plug-in block is inserted into each plug-in slot.

[0031] A fixing block is fixed to the side of the rubber plate facing the inner wall of the clamp body. A groove is provided on the inner wall of the clamp body for the fixing block to slide. The side of the rubber plate away from the inner wall of the clamp body is inclined, and the inclination angle expands towards the downward contact plate.

[0032] A movable rod is fixed to the bottom of the lower contact plate. Several movable rods are evenly spaced along the length of the lower contact plate, and each movable rod is symmetrically arranged. A second spring is fixed to the end of the movable rod away from the lower contact plate. A fixed rod is sleeved on the outside of the second spring. The movable rod slides along the inside of the fixed rod. When the movable rod moves towards the inside of the fixed rod, it can resist the compression of the second spring. In this way, the friction between the movable rod and the fixed rod can offset the pressure generated by the pulling of the wire, thereby improving the vibration resistance of the wire during use and providing protection for the wire.

[0033] The working principle of this utility model is as follows: the wire extends out along the position between the upper contact plate and the lower contact plate. The upper contact plate is composed of two rubber plates inserted together. The two sides of the upper contact plate are inserted into the sliding groove by fixing blocks to slide. The adjusting rod can be adjusted down according to the size of the wire inside, so as to clamp wires of different specifications. At the same time, due to the mobility of the upper contact plate, the fit of wires of different specifications is relatively high.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tension clamp with an adjusting device, characterized in that, The device includes a clamp body (1), inside which is provided a lower contact plate (2) that slides freely up and down. The lower contact plate (2) is arc-shaped. Above the lower contact plate (2) is an upper contact plate (3), which is U-shaped and consists of two interlocking rubber plates (4). The side of each rubber plate (4) slides along the inner wall of the clamp body (1). An adjusting rod (5) is sleeved on the outside of the clamp body (1). The adjusting rod (5) is U-shaped and its inner side contacts the top of the upper contact plate (3).

2. A tension clamp with an adjusting device according to claim 1, characterized in that: The adjusting rod (5) has a threaded end away from the upper contact plate (3), and a fixing plate (6) is sleeved on the side of the adjusting rod (5) near the threaded end. The fixing plate (6) has a groove (7) facing the clamp body (1), and the fixing plate (6) abuts against the bottom of the clamp body (1) through the groove (7).

3. A tension clamp with an adjusting device according to claim 2, characterized in that: The threaded end is threadedly connected to a locking nut (8), and a first spring (9) is fixed between the locking nut (8) and the fixing plate (6). The first spring (9) is sleeved on the outside of the threaded end.

4. A tension clamp with an adjusting device according to claim 1, characterized in that: One of the rubber plates (4) has a plug-in block (10) fixed on its side, and the other rubber plate (4) has a plug-in groove (11) on its side. The number of plug-in blocks (10) and plug-in grooves (11) are the same, and each plug-in block (10) is inserted into each plug-in groove (11).

5. A tension clamp with an adjusting device according to claim 1, characterized in that: The rubber plate (4) is fixed with a fixing block (12) on the side facing the inner wall of the clamp body (1). The inner wall of the clamp body (1) is provided with a sliding groove (13) for the fixing block (12) to slide. The side of the rubber plate (4) away from the inner wall of the clamp body (1) is inclined, and the inclination angle expands towards the lower contact plate (2).

6. A tension clamp with an adjusting device according to claim 1, characterized in that: The bottom of the lower contact plate (2) is fixed with a movable rod (14). Several movable rods (14) are equidistantly arranged along the length of the lower contact plate (2). Each movable rod (14) is symmetrically arranged. A second spring (15) is fixed at the end of the movable rod (14) away from the lower contact plate (2). A fixed rod (16) is sleeved on the outside of the second spring (15). The movable rod (14) slides along the inside of the fixed rod (16).

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