A fastening type strain clamp for cable erection

Abstract

The present invention discloses a tightening type tension clamp for cable erection, comprising a U-shaped frame, a first clamping bolt is rotatably connected to the end of the U-shaped frame, a first clamping block is rotatably connected to one end of the first clamping bolt located inside the U-shaped frame, the side wall of the U-shaped frame is rotatably connected to two symmetrically arranged strip plates through a rotating shaft, a pin is rotatably connected to the side walls of the two strip plates, a groove wheel is rotatably connected to the inner wall of the U-shaped frame through a rotating shaft, a tensioning adjustment mechanism is installed on the side wall of the U-shaped frame, and a tightening mechanism is movably installed inside the U-shaped frame. The present invention solves the problem that after the traditional twisted type tension clamp fixes the cable, the cable may break at the hanging part and the cable may become loose at the winding part due to the long-term wind force on the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission and distribution hardware, and particularly to a fastening type strain clamp for cable erection. Background Art

[0002] Comparative Document 1 (authorized announcement number: CN102856863B; authorized announcement date: October 7, 2015) discloses a preformed strain clamp. A part of the cable needs to be drawn out and wound around the preformed strain clamp, that is, hung and wound around a heart-shaped ring, and then wound on the original cable. The operation is very troublesome, and the number of cable strands used for hanging is much smaller than the number of strands of the original cable, greatly reducing the strength of the cable at the hanging connection. Under the action of long-term wind force on the cable dancing, the cable at the hanging connection will break, and the wound part of the cable will also become loose. Therefore, we propose a fastening type strain clamp for cable erection. Summary of the Invention

[0003] In order to solve the problem that after the traditional preformed strain clamp fixes the cable, under the action of long-term wind force on the cable dancing, the cable at the hanging connection will break, and the wound part of the cable will also become loose, the purpose of the present invention is to provide a fastening type strain clamp for cable erection.

[0004] In order to achieve the above purpose, the present invention adopts the following technical scheme: A fastening type strain clamp for cable erection, including a U-shaped frame. The end of the U-shaped frame is rotatably penetrated by a first pressing bolt. One end of the first pressing bolt located inside the U-shaped frame is rotatably connected to a first pressing block. The side wall of the U-shaped frame is rotatably connected to two symmetrically arranged strip-shaped plates through a rotating shaft. The side walls of the two strip-shaped plates are rotatably penetrated by a pin shaft. The inner wall of the U-shaped frame is rotatably connected to a sheave through a rotating shaft. A tension adjusting mechanism is installed on the side wall of the U-shaped frame, and a fastening mechanism is movably installed inside the U-shaped frame;

[0005] The tension adjusting mechanism includes a driving block;

[0006] The fastening mechanism includes a rectangular block fixedly connected to the side wall of the driving block. Through holes and cable fastening holes are provided on the side wall of the rectangular block. Two second pressing blocks are arranged in the cable fastening holes. Two second pressing bolts are threadedly connected to the top of the rectangular block.

[0007] Preferably, a first arc-shaped groove is provided on the side of the first pressing block away from the first pressing bolt.

[0008] Preferably, the inner wall of the sheave is slidably connected to both side walls of the first pressing block.

[0009] Preferably, the tension adjusting mechanism further includes two fixing plates fixedly arranged on the side walls of the U-shaped frame and symmetrically arranged. A lead screw is rotatably inserted through the side walls of the two fixing plates, and the lead screw threadedly passes through the side wall of the driving block.

[0010] Preferably, two sliding grooves are formed on the two side walls of the rectangular block, and the inner walls of the two sliding grooves are slidably connected to the two side walls and the inner wall of the U-shaped frame.

[0011] Preferably, the bottom of the cable fastening hole is semicircularly arranged, and the two inner walls are vertically arranged. The two side walls of the second pressing block are slidably connected to the two inner walls of the cable fastening hole.

[0012] Preferably, the bottom of the second pressing bolt is rotatably connected to the top of the second pressing block.

[0013] Preferably, a second arc-shaped groove is formed at the bottom of the second pressing block.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: Fix the pin shaft; Pass the cable through the through hole, then bypass the inside of the sheave, and then return to pass through the cable fastening hole. After tightening the cable, rotate the second pressing bolt so that the second pressing block presses the cable in the cable fastening hole. Rotate the lead screw to drive the driving block to move, so that the fastening mechanism slides on the inner wall of the U-shaped frame and moves in the direction away from the sheave, further tightening the cable; Rotate the first pressing bolt so that the first pressing block enters the inner wall of the sheave, and continue to rotate the first pressing bolt so that the first pressing block presses the cable in the sheave. The cable erection fastening type strain clamp is very convenient to operate during the cable fastening process; The cable erection fastening type strain clamp fastens all strands of the cable, ensuring the tensile strength of the cable, and through two-point fastening of the cable in the rectangular block and the sheave, the fastening is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 It is a schematic structural diagram of the whole of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the fastening mechanism of the present invention;

[0018] Figure 3 It is a schematic diagram of the winding direction of the cable of the present invention.

[0019] In the figure: 1-U-shaped frame, 2-first compression bolt, 3-first compression block, 4-strip plate, 5-pin shaft, 6-grooved pulley, 7-tension adjustment mechanism, 8-fastening mechanism, 701-driving block, 702-fixed plate, 703-screw rod, 801-rectangular block, 802-through hole, 803-cable fastening hole, 804-second compression block, 805-second compression bolt. Specific embodiments

[0020] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0021] Please refer to Figures 1 to 3 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change of the technical content, should also be regarded as the scope that the present invention can implement.

[0022] The present invention provides a technical solution: a fastening type strain clamp for cable erection, including a U-shaped frame 1. The end of the U-shaped frame 1 is rotatably penetrated by a first compression bolt 2. One end of the first compression bolt 2 located inside the U-shaped frame 1 is rotatably connected to a first compression block 3. The side wall of the U-shaped frame 1 is rotatably connected to two symmetrically arranged strip plates 4 through a rotating shaft. The side walls of the two strip plates 4 are rotatably penetrated by a pin shaft 5. The inner wall of the U-shaped frame 1 is rotatably connected to a grooved pulley 6 through a rotating shaft. The side wall of the U-shaped frame 1 is provided with a tension adjustment mechanism 7, and the inside of the U-shaped frame 1 is movably provided with a fastening mechanism 8;

[0023] The tension adjustment mechanism 7 includes a driving block 701;

[0024] The fastening mechanism 8 includes a rectangular block 801 fixedly connected to the side wall of the driving block 701. A through hole 802 and a cable fastening hole 803 are provided on the side wall of the rectangular block 801. Two second compression blocks 804 are arranged in the cable fastening hole 803. Two second compression bolts 805 are threadedly connected to the top of the rectangular block 801.

[0025] On the side of the first pressing block 3 away from the first pressing bolt 2, a first arc-shaped groove is provided.

[0026] The inner wall of the grooved pulley 6 is slidably connected to the two side walls of the first pressing block 3.

[0027] The tensioning and adjusting mechanism 7 further includes two fixing plates 702 fixedly arranged on the side wall of the U-shaped frame 1 and symmetrically arranged. A lead screw 703 is rotatably inserted through the side walls of the two fixing plates 702, and the lead screw 703 is threadedly passed through the side wall of the driving block 701.

[0028] On the two side walls of the rectangular block 801, two sliding grooves are provided, and the inner walls of the two sliding grooves are slidably connected to the two side walls and the inner wall of the U-shaped frame 1.

[0029] The bottom of the cable fastening hole 803 is semi-circularly arranged, and the two inner walls are vertically arranged. The two side walls of the second pressing block 804 are slidably connected to the two inner walls of the cable fastening hole 803.

[0030] The bottom of the second pressing bolt 805 is rotatably connected to the top of the second pressing block 804.

[0031] On the bottom of the second pressing block 804, a second arc-shaped groove is provided.

[0032] During use, fix the pin shaft 5; pass the cable through the through hole 802, then bypass the inside of the grooved pulley 6, and then return to pass through the cable fastening hole 803. After tightening the cable, rotate the second pressing bolt 805 so that the second pressing block 804 presses the cable in the cable fastening hole 803. The schematic diagram of the cable winding direction is as Figure 3 , rotate the lead screw 703 to drive the driving block 701 to move, so that the fastening mechanism 8 slides on the inner wall of the U-shaped frame 1 and moves in the direction away from the grooved pulley 6, then further tightens the cable; rotate the first pressing bolt 2 so that the first pressing block 3 enters the inner wall of the grooved pulley 6, and continue to rotate the first pressing bolt 2 so that the first pressing block 3 presses the cable in the grooved pulley 6; this cable erection fastening type strain clamp ensures the tensile strength of the cable by fastening all strands of the cable, and makes the fastening stable by fastening the cable in the rectangular block 801 and the grooved pulley 6 at two places.

[0033] The above embodiments only illustrate the principles and effects of the present invention by way of example, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A fastening type strain clamp for cable erection, comprising a U-shaped frame (1), characterized in that: One end of the U-shaped frame (1) is rotatably penetrated by a first pressing bolt (2). One end of the first pressing bolt (2) located inside the U-shaped frame (1) is rotatably connected to a first pressing block (3). The side wall of the U-shaped frame (1) is rotatably connected to two symmetrically arranged strip plates (4) through a rotating shaft. A pin shaft (5) is rotatably penetrated through the side walls of the two strip plates (4). The inner wall of the U-shaped frame (1) is rotatably connected to a sheave (6) through a rotating shaft. A tension adjusting mechanism (7) is installed on the side wall of the U-shaped frame (1). A fastening mechanism (8) is movably installed inside the U-shaped frame (1); The tension adjusting mechanism (7) includes a driving block (701); The fastening mechanism (8) includes a rectangular block (801) fixedly connected to the side wall of the driving block (701). A through hole (802) and a cable fastening hole (803) are formed in the side wall of the rectangular block (801). Two second pressing blocks (804) are arranged in the cable fastening hole (803). Two second pressing bolts (805) are threadedly connected to the top of the rectangular block (801).

2. The fastening type strain clamp for cable erection according to claim 1, wherein: A first arc-shaped groove is formed on the side of the first pressing block (3) away from the first pressing bolt (2).

3. A fastening type strain clamp for cable erection according to claim 1, characterized in that: The inner wall of the sheave (6) is slidably connected to the two side walls of the first pressing block (3).

4. A fastening type strain clamp for cable erection according to claim 1, characterized in that: The tension adjusting mechanism (7) further includes two fixing plates (702) fixedly arranged on the side wall of the U-shaped frame (1) and symmetrically arranged. A lead screw (703) is rotatably penetrated through the side walls of the two fixing plates (702). The lead screw (703) threadedly penetrates through the side wall of the driving block (701).

5. A fastening type strain clamp for cable erection according to claim 1, characterized in that: Two sliding grooves are formed on the two side walls of the rectangular block (801). The inner walls of the two sliding grooves are slidably connected to the two side walls and the inner wall of the U-shaped frame (1).

6. The fastening type strain clamp for cable erection according to claim 1, wherein: The bottom of the cable fastening hole (803) is semi-circularly arranged, and the two inner walls on both sides are vertically arranged. The two side walls of the second pressing block (804) are slidably connected to the two inner walls on both sides of the cable fastening hole (803).

7. A fastening type strain clamp for cable erection according to claim 1, characterized in that: The bottom of the second pressing bolt (805) is rotatably connected to the top of the second pressing block (804).

8. The fastening type strain clamp for cable erection according to claim 1, wherein: A second arc-shaped groove is formed on the bottom of the second pressing block (804).

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