Preformed strain clamp

Abstract

The utility model discloses a pre -stranded type strain clamp, and both ends of upper plate body and lower plate body are all seted up first through -hole and second through -hole, and the first through -hole is connected through annular connecting section between upper plate body and lower plate body, and the one end away from annular connecting section is provided with limiting post between upper plate body and lower plate body, and first bolt passes through second through -hole and is equipped with first nut, and one end of U -shaped hanger is set between upper plate body and lower plate body, and U -shaped hanger is sleeved on the outside of first bolt, and the one end away from first bolt of U -shaped hanger is the opening and is equipped with second bolt through third through -hole on both sides, and limiting post is located inside U -shaped hanger, the utility model discloses reasonable structure, when U -shaped hanger is connected with the strain clamp main part through first bolt, limiting post supports inside U -shaped hanger, when even if the cable drives pre -stranded type strain clamp to shake under the environment of strong wind, U -shaped hanger also can not rotate around first bolt, and the stability greatly improves, and also solved the problem of U -shaped hanger and first bolt friction.

Description

Technical Field

[0001] This utility model relates to the field of tension clamp technology, specifically a pre-twisted tension clamp. Background Technology

[0002] Pre-twisted tension clamps, with their unique structural design, effectively utilize the friction between the inner and outer strands and the conductor / ground wire to securely fix the conductor, and installation can be completed without disconnecting the conductor / ground wire. These clamps are particularly suitable for OPGW and ADSS optical cables, as these cables typically require fewer joints, making the pre-twisted design an ideal choice. The clamp portion of the pre-twisted tension clamp connects with the outer strands of the optical cable, and the U-shaped bracket can be bolted to the bracket on the tower.

[0003] Traditional pre-twisted tension clamps have U-shaped brackets connected to the clamp body by bolts. In windy conditions, when the optical cable is blown, it drives the clamp body to rotate, causing the clamp body and U-shaped brackets to rotate around the connecting bolts as the central axis. This causes friction between the U-shaped brackets and the bolts, resulting in reduced stability and a shorter service life due to friction. Therefore, an improved technology is urgently needed to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a pre-twisted tension clamp to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-twisted tension clamp, comprising a clamp body, a U-shaped hanger, a first bolt, a second bolt, a first nut, and a second nut. The clamp body includes an upper plate, a lower plate, and an annular connecting section. The upper and lower plates are parallel to each other. Both ends of the upper and lower plates are provided with a first through hole and a second through hole. The upper and lower plates are connected by the annular connecting section at the first through hole. A limiting post is provided between the upper and lower plates at the end away from the annular connecting section. The first bolt passes through the second through hole and is fitted with a first nut. One end of the U-shaped hanger is located between the upper and lower plates. The U-shaped hanger is sleeved outside the first bolt. The end of the U-shaped hanger away from the first bolt is open, and both sides are provided with third through holes. The second bolt passes through the third through holes on both sides of the U-shaped hanger and is fitted with a second nut. The limiting post is located inside the U-shaped hanger.

[0006] Preferably, in the pre-twisted tension clamp provided by this utility model, the width of the limiting post matches the inner width of the U-shaped hanger.

[0007] Preferably, the pre-twisted tension clamp provided by this utility model has a head at one end of the first bolt and the second bolt, and a washer is provided at the head of the first bolt and the second bolt, as well as at the first nut and the second nut.

[0008] Preferably, the present invention provides a pre-twisted tension clamp in which the first bolt and the second bolt each have a fourth through hole radially formed at the end away from their respective heads, and an elastic pin is inserted at the fourth through hole.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] Because a limiting post is set between the upper and lower plates, when the U-shaped hanger is connected to the clamp body through the first bolt, the limiting post is supported on the inside of the U-shaped hanger. In windy conditions, even if the optical cable drives the pre-twisted tension clamp to sway, the U-shaped hanger will not rotate around the first bolt, which greatly improves stability and solves the problem of friction between the U-shaped hanger and the first bolt. Attached Figure Description

[0011] Figure 1 This is a top view of the structure of this utility model;

[0012] Figure 2 This is a side view of the structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the second bolt structure (the first bolt and the second bolt have the same structure);

[0014] Figure 4 This is a top view of the main body of the wire clamp.

[0015] Figure 5 This is a side view of the main body of the wire clamp.

[0016] In the diagram: 1. Cable clamp body; 2. U-shaped hanger; 3. First bolt; 4. Second bolt; 5. First nut; 6. Second nut; 7. Third through hole; 8. Washer; 9. Fourth through hole; 10. Elastic pin; 10. Upper plate; 101. Lower plate; 102. Annular connecting section; 103. First through hole; 104. Second through hole; 105. Limiting post; 106. Detailed Implementation

[0017] The technical solution of this 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 this utility model, and 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.

[0018] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "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.

[0019] Please see Figure 1-5 This utility model provides a technical solution: a pre-stretched tension clamp, including a clamp body 1, a U-shaped hanger 2, a first bolt 3, a second bolt 4, a first nut 5, and a second nut 6. The clamp body 1 includes an upper plate 101, a lower plate 102, and an annular connecting section 103. The upper plate 101 and the lower plate 102 are parallel to each other. Both ends of the upper plate 101 and the lower plate 102 are provided with a first through hole 104 and a second through hole 105. The upper plate 101 and the lower plate 102 are connected by the annular connecting section 103 at the first through hole 104. A limit post 106 is provided at the end of the upper plate 101 and the lower plate 102 away from the annular connecting section 103. The first bolt 3 passes through the second through hole 105 and is fitted with a first nut 5. One end of the U-shaped hanger 2 is located between the upper plate 101 and the lower plate 102. The U-shaped hanger 2 is sleeved on the outside of the first bolt 3. The U-shaped hanger 2 is located away from the first bolt 3. The first bolt 3 has an open end and third through holes 7 on both sides. The second bolt 4 passes through the third through holes 7 on both sides of the U-shaped hanger 2 and is connected to the second nut 6. The first bolt 3 and the second bolt 4 are both provided with a head at one end. Washers 8 are provided at the heads of the first bolt 3 and the second bolt 4, as well as at the first nut 5 and the second nut 6, to prevent the first nut 5 and the second nut 6 from loosening. The first bolt 3 and the second bolt 4 are both provided with a fourth through hole 9 radially away from their respective heads, and an elastic pin 10 is inserted at the fourth through hole 9 to prevent the first nut 5 from falling off the first bolt 3 and the second nut 6 from falling off the second bolt 4. The limiting post 106 is located on the inner side of the U-shaped hanger 2. The width of the limiting post 106 matches the inner width of the U-shaped hanger 2. The two sides of the limiting post 106 are connected to the inner side of the U-shaped hanger 2, thereby ensuring that the U-shaped hanger 2 will not sway left and right.

[0020] Installation method and operating principle: First, the main body 1 of the wire clamp and the U-shaped hanger 2 are cast. The upper plate 101 and the lower plate 102 of the main body 1 are connected by an annular connecting section 103 and a limiting post 106. The upper plate 101, the lower plate 102 and the annular connecting section 103 are an integral structure. The limiting post 106 can be an integral structure with the upper plate 101 and the lower plate 102 or it can be welded together. During assembly, the open end of the U-shaped hanger 2 is put on the outside of the limiting post 106. Then, the first bolt 3 is passed through the second through hole 105 of the upper plate 101 and the lower plate 102 and passed through the inside of the U-shaped hanger 2. The first nut 5 is used for limiting. Then, the second bolt 4 is passed through the two third through holes 7 of the open end of the U-shaped hanger 2 and the second nut 6 is used for limiting. When installing the first bolt 3 and the second bolt 4, the washer 8 is installed to prevent the nut from loosening. In use, the outer strands of the optical cable are passed between the upper plate 101 and the lower plate 102 and around the annular connecting section 103. The annular connecting section 103 is used to pull the strands. The U-shaped hanger 2 and the second bolt 4 are then connected to the hanger on the tower to complete the installation of the tension clamp. Because a limiting post 106 is provided between the upper plate 101 and the lower plate 102, when the U-shaped hanger 2 is connected to the clamp body 1 by the first bolt 3, the limiting post 106 supports the inside of the U-shaped hanger 2. In windy conditions, even if the optical cable causes the pre-twisted tension clamp to sway, the U-shaped hanger 2 will not rotate around the first bolt 3, greatly improving stability and solving the problem of friction between the U-shaped hanger 2 and the first bolt 3.

[0021] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0022] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pre-stretched tension clamp, characterized in that: The device includes a wire clamp body (1), a U-shaped bracket (2), a first bolt (3), a second bolt (4), a first nut (5), and a second nut (6). The wire clamp body (1) includes an upper plate (101), a lower plate (102), and an annular connecting section (103). The upper plate (101) and the lower plate (102) are parallel to each other. Both ends of the upper plate (101) and the lower plate (102) are provided with a first through hole (104) and a second through hole (105). The upper plate (101) and the lower plate (102) are connected by the annular connecting section (103) at the first through hole (104). A limiting post (106) is provided between 02) and at one end away from the annular connecting section (103). The first bolt (3) passes through the second through hole (105) and is fitted with a first nut (5). One end of the U-shaped pendant (2) is located between the upper plate (101) and the lower plate (102). The U-shaped pendant (2) is sleeved outside the first bolt (3). The end of the U-shaped pendant (2) away from the first bolt (3) is open and has a third through hole (7) on both sides. The second bolt (4) passes through the third through holes (7) on both sides of the U-shaped pendant (2) and is fitted with a second nut (6). The limiting post (106) is located inside the U-shaped pendant (2).

2. The pre-stretched tension clamp according to claim 1, characterized in that: The width of the limiting post (106) matches the inner width of the U-shaped pendant (2).

3. The pre-stretched tension clamp according to claim 1, characterized in that: The first bolt (3) and the second bolt (4) are each provided with a head at one end, and a washer (8) is provided at the head of the first bolt (3) and the second bolt (4) as well as at the first nut (5) and the second nut (6).

4. A pre-stretched tension clamp according to claim 1, characterized in that: The first bolt (3) and the second bolt (4) each have a fourth through hole (9) radially opened at the end away from their respective heads, and an elastic pin (10) is inserted at the fourth through hole (9).

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