Compression type adjustable tensioning wire clamp for flexible anti-falling device of tower

Abstract

The utility model relates to the technical field of tower maintenance equipment, in particular to a compression type adjustable tensioning wire clamp for a tower flexible anti-falling device. The adjustable tensioning wire clamp comprises a spiral sleeve, a U-shaped connecting screw rod and a strain screw rod, one end of the strain screw rod is used for being connected with a steel strand, the other end of the strain screw rod is in threaded connection with one end of the spiral sleeve, one end of the U-shaped connecting screw rod is in threaded connection with the other end of the spiral sleeve, and the other end of the U-shaped connecting screw rod is in threaded connection with the other end of the spiral sleeve. The tension screw, the spiral sleeve and the U-shaped connecting screw are coaxially arranged, and nuts are arranged between the tension screw and the spiral sleeve and between the U-shaped connecting screw and the spiral sleeve. The strain screw, the spiral sleeve and the U-shaped connecting screw are in threaded connection and are coaxially arranged, so that the length of the adjustable tensioning wire clamp is adjusted, and then the adjustable tensioning wire clamp is further reinforced through the nut, so that the flexible guide rail occupied by the fitting is shorter, and more flexible guide rail length is reserved so as to be convenient for tower climbing personnel to move.

Description

Technical Field

[0001] The utility model relates to the technical field of pole tower maintenance equipment, in particular to a compression type adjustable tensioning wire clamp used for a pole tower flexible anti-falling device. Background Art

[0002] In order to ensure the personal safety of workers working at heights, the State Grid Corporation of China has put forward clear requirements for the configuration of anti-fall equipment in recent years: steel pipe towers, towers of 30 meters and above (full height) and line towers of 220 kV and above should be equipped with anti-fall safety protection devices for workers to go up and down the tower and move horizontally. Anti-fall devices are mainly divided into rigid and flexible types. The guide rails of flexible anti-fall devices are steel strands, aluminum-clad steel strands, stainless steel wire ropes, etc. The ends are required to be fixed on the tower components, and the ends are crimped. The breaking strength should comply with the provisions of GB / T25821, and the holding strength shall not be less than 90% of the designed tensile force of the flexible guide rail. The installation tension of the flexible guide rail should not be less than 2kN, and should not be greater than 2.6kN. Usually, tension clamps and basket bolts are used to crimp and tighten the flexible guide rails in the installation of flexible guide rails.

[0003] However, the traditional installation method of connecting the tension clamp with the basket bolts in sequence is inconvenient and costly. In addition, the hardware occupies a long period of the flexible guide rail, and there is no room for more flexible guide rail length to facilitate the movement of tower climbers.

[0004] Therefore, it is urgent to design a compression-type adjustable tensioning wire clamp for a flexible anti-fall device of a tower to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the background technology, the utility model discloses a compression type adjustable tensioning wire clamp for a flexible anti-fall device of a pole tower, which makes the hardware occupy a shorter flexible guide rail, leaving more flexible guide rail length for tower climbers to move their positions.

[0006] In order to solve the above problems, an embodiment of the utility model proposes a compression-type adjustable tensioning wire clamp for a flexible anti-fall device of a pole tower, comprising a spiral sleeve, a U-shaped connecting screw and a tension screw, one end of the tension screw is used to connect the steel strand, the other end of the tension screw is threadedly connected to one end of the spiral sleeve, one end of the U-shaped connecting screw is threadedly connected to the other end of the spiral sleeve, and the tension screw, spiral sleeve and U-shaped connecting screw are coaxially arranged, and nuts are arranged between the tension screw and the spiral sleeve, and between the U-shaped connecting screw and the spiral sleeve.

[0007] In an optional embodiment, one end of the tension screw has a hole connected to the steel strand.

[0008] In an optional embodiment, the nut is installed on the threaded connection portion of the tension screw and the U-shaped connecting screw, and the nut is located outside the threaded hole of the spiral sleeve.

[0009] In an optional embodiment, it further includes a pin shaft, a first pin hole is provided on the U-shaped connecting screw, and the pin shaft passes through the first pin hole of the U-shaped connecting screw; a second pin hole is provided on the pin shaft, and a closed pin is provided in the second pin hole.

[0010] In an optional embodiment, the U-shaped connecting screw is connected to the external U-shaped ring through the pin shaft.

[0011] In an optional embodiment, the U-shaped ring is installed on an external component to be connected.

[0012] In an optional embodiment, the other end of the steel strand is connected to an external tension clamp, and the tension clamp is connected to another external component to be connected through the U-shaped ring.

[0013] Compared with the prior art, the utility model of the compression type adjustable tensioning wire clamp for the flexible anti-fall device of the pole tower has the following beneficial technical effects:

[0014] The utility model is a tension-resistant screw, a spiral sleeve and a U-shaped connecting screw that are threadedly connected and coaxially arranged to adjust the length of the adjustable tensioning wire clamp and further reinforce it with a nut, so that the hardware occupies a shorter flexible guide rail, leaving more flexible guide rail length for tower climbers to move their positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a compression type adjustable tensioning wire clamp for a flexible anti-fall device for a pole tower in an embodiment of the utility model;

[0016] Figure 2 It is a top view of a compression type adjustable tensioning wire clamp for a flexible anti-fall device for a pole tower in an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation of a compression-type adjustable tensioning wire clamp applied to a flexible anti-fall device for a pole tower in an embodiment of the utility model;

[0018] Figure numerals: 10 is an adjustable tensioning clamp; 11 is a tension screw; 12 is a nut; 13 is a spiral sleeve; 14 is a U-shaped connecting screw; 15 is a pin shaft; 16 is a closed pin; 20 is a component to be connected; 21 is the main cross arm angle steel; 22 is a connecting plate; 31 is a U-shaped ring; 32 is a tension clamp; 33 is a steel strand. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "cross", "inside", "outside", "front", "back" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] like Figure 1 and Figure 2 As shown, the utility model proposes a compression-type adjustable tensioning wire clamp 10 for a flexible anti-fall device of a pole tower, comprising a spiral sleeve 13, a U-shaped connecting screw 14 and a tension screw 11, one end of the tension screw 11 is used to connect the steel strand, the other end of the tension screw 11 is threadedly connected to one end of the spiral sleeve 13, one end of the U-shaped connecting screw 14 is threadedly connected to the other end of the spiral sleeve 13, and the tension screw 11, the spiral sleeve 13 and the U-shaped connecting screw 14 are coaxially arranged, and nuts 12 are arranged between the tension screw 11 and the spiral sleeve 13, and between the U-shaped connecting screw 14 and the spiral sleeve 13.

[0022] It should be noted that the overall length of the adjustable tensioning clamp 10 can be adjusted by threading the tension screw 11 and the spiral sleeve 13. Furthermore, the overall length of the adjustable tensioning clamp 10 can be further adjusted by threading the U-shaped connecting screw 14 and the spiral sleeve 13. After the lengths of the tension screw 11 and the spiral sleeve 13 and the U-shaped connecting screw 14 and the spiral sleeve 13 are adjusted, the length of the adjustable tensioning clamp 10 can be further maintained by the nut 12, so that the hardware occupies a shorter portion of the flexible guide rail, leaving more flexible guide rail length for the tower climbers to move.

[0023] It should be further explained that one end of the tension screw 11 has a hole connected to the steel strand. Similar to the conventional tension clamp, a hole is provided at the end of the tension screw 11, and the hole is a clamping hole. When one end of the steel strand is inserted into the hole, the tension screw 11 is connected to the steel strand by deforming the portion of the tension screw 11 having the clamping hole.

[0024] Furthermore, the nut 12 is installed at the threaded connection portion of the tension screw 11 and the U-shaped connection screw 14, and the nut 12 is located outside the threaded hole of the spiral sleeve 13. After the tension screw 11 and the spiral sleeve 13, and the U-shaped connection screw 14 and the spiral sleeve 13 are threadedly connected, the tension screw 11 and the spiral sleeve 13, and the U-shaped connection screw 14 and the spiral sleeve 13 are threadedly connected by the nut 12 to be more tightened.

[0025] Optionally, a pin 15 is further included, a first pin hole is provided on the U-shaped connecting screw 14, and the pin 15 passes through the first pin hole of the U-shaped connecting screw 14; a second pin hole is provided on the pin 15, and a closed pin 16 is provided in the second pin hole. The U-shaped connecting screw 14 is connected to the external U-shaped ring through the pin 15. The pin 15 is inserted into the first pin hole to facilitate connection with the U-shaped ring, and at the same time, the closed pin 16 is inserted into the second pin hole to prevent the pin 15 from being separated from the U-shaped connecting screw 14.

[0026] Specifically, the tension screw 11, the spiral sleeve 13 and the U-shaped connecting screw 14 are threadedly connected and coaxially arranged to adjust the length of the adjustable tensioning clamp 10 and then further reinforced by the nut 12, so that the hardware occupies a shorter portion of the flexible guide rail, leaving more flexible guide rail length for the tower climbers to move their positions.

[0027] In this embodiment, the U-shaped ring 31 is installed on the external component to be connected 20; the other end of the steel strand 33 is connected to the external tension clamp 32, and the tension clamp 32 is connected to another external component to be connected 20 through the U-shaped ring 31.

[0028] In order to further make the technical solution of the utility model easier to understand, Figure 3 As shown, Figure 3 This is a schematic diagram of the installation of a compression-type adjustable tensioning wire clamp applied to a flexible anti-falling device for a pole tower in an embodiment of the utility model; the flexible anti-falling device for a pole tower includes an adjustable tensioning wire clamp 10, a tension clamp 32, a steel strand 33, two groups of parts to be connected 20 and a U-shaped ring 31, wherein the adjustable tensioning wire clamp 10 is the above-mentioned adjustable tensioning wire clamp 10, the two U-shaped rings 31 are respectively installed on the two parts to be connected 20, one end of the tension clamp 32 and the adjustable tensioning wire clamp 10 are respectively connected to the U-shaped ring 31, and the steel strand 33 is arranged between the tension clamp 32 and the adjustable tensioning wire clamp 10.

[0029] It should be noted that, usually, the tension clamp 32 is locked and connected to the steel strand 33 through a connector, and optionally, the tension clamp 32 has a hole that matches and is installed with the steel strand 33. Similar to the tension screw 11, the hole is a clamping hole, and when one end of the steel strand is inserted into the hole, the tension clamp 32 is connected to the steel strand by deforming the portion of the tension clamp 32 having the clamping hole.

[0030] Furthermore, the component 20 to be connected includes a connecting plate 22 and a cross arm main material angle steel 21. The cross arm main material angle steel 21 is fixed to the connecting plate 22 by angle steel clamp screws and is arranged at a right angle to the connecting plate 22. The U-shaped ring 31 is installed on the top of the cross arm main material angle steel 21.

[0031] The specific operation is as follows: first, connect one end of the steel strand 33 to the hole of the tension clamp 32, and then connect the steel strand 33 to the tension screw 11 of the adjustable tension clamp 10. Furthermore, through the adjustable length of the adjustable tension clamp 10 itself, the adjustable tension clamp 10 can be connected to another U-shaped ring 31, so that the hardware occupies a shorter flexible guide rail, leaving more flexible guide rail length for the tower climbers to move.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention are understood according to specific circumstances.

[0033] The above specific embodiments are only one or several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. Compression type adjustable tensioning wire clamp for flexible anti-fall device of pole tower, characterized by: It includes a spiral sleeve, a U-shaped connecting screw and a tension screw, one end of the tension screw is used to connect the steel strand, the other end of the tension screw is threadedly connected to one end of the spiral sleeve, one end of the U-shaped connecting screw is threadedly connected to the other end of the spiral sleeve, and the tension screw, spiral sleeve and U-shaped connecting screw are coaxially arranged, and nuts are arranged between the tension screw and the spiral sleeve, and between the U-shaped connecting screw and the spiral sleeve.

2. The compression type adjustable tensioning clamp for the flexible anti-fall device of the pole tower according to claim 1 is characterized in that: One end of the tension screw rod is provided with a hole connected with the steel strand.

3. The compression type adjustable tensioning clamp for the flexible anti-fall device of the pole tower according to claim 1 is characterized in that: The nut is installed on the threaded connection portion of the tension-resistant screw and the U-shaped connecting screw, and the nut is located outside the threaded hole of the spiral sleeve.

4. The compression type adjustable tensioning clamp for the flexible anti-fall device of the tower according to claim 1 or 3, characterized in that: It also includes a pin shaft, a first pin hole is arranged on the U-shaped connecting screw, and the pin shaft passes through the first pin hole of the U-shaped connecting screw; a second pin hole is arranged on the pin shaft, and a closed pin is arranged in the second pin hole.

5. The compression type adjustable tensioning clamp for the flexible anti-fall device of the pole tower according to claim 4 is characterized in that: The U-shaped connecting screw is connected to the external U-shaped ring through the pin shaft.

6. The compression type adjustable tensioning clamp for the flexible anti-fall device of the pole tower according to claim 5 is characterized in that: The U-shaped ring is installed on the external component to be connected.

7. The compression type adjustable tensioning clamp for the flexible anti-fall device of the pole tower according to claim 6 is characterized in that: The other end of the steel strand is connected to an external tension clamp, and the tension clamp is connected to another external component to be connected through the U-shaped ring.

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