CN219118908U

CN219118908U - Horizontal cross arm fixer capable of being adjusted in angle direction

Info

Publication number: CN219118908U
Application number: CN202320120010.3U
Authority: CN
Inventors: 孙学斌; 王家峰; 刘克冰; 牟银笛; 薛俏; 刘成鹏; 杨继成; 王诺笛; 于浩; 郭绍男; 李志铭; 常金辉
Original assignee: Anshan Power Supply Co Of State Grid Liaoning Electric Power Co; State Grid Corp of China SGCC
Current assignee: Anshan Power Supply Co Of State Grid Liaoning Electric Power Co; State Grid Corp of China SGCC
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-06-02
Anticipated expiration: 2033-02-01

Abstract

The utility model relates to a horizontal cross arm fixer capable of being adjusted in an angle, which comprises a cross stretcher, a cross arm support arm, a clamping mechanism, a sliding screw and a base plate; the cross arm support arm is connected with the clamping mechanism through an eccentric pin shaft, two ends of the cross arm support arm are fixedly connected with base plates, and the base plates are connected with the cross arm; the clamping mechanism is clamped and fixed on the tower, and comprises a clamping arm A, a clamping arm B, a connecting pin, a bidirectional screw rod and a ratchet operation rod, wherein one end of the clamping arm A is connected with one end of the clamping arm B through the connecting pin, the other end of the clamping arm A is connected with the other end of the clamping arm B through the bidirectional screw rod, and the bidirectional screw rod is connected with the ratchet operation rod; the upper part of the transverse stretcher is of a U-shaped structure and is used for supporting the cross arm, and the lower part of the transverse stretcher is connected with the base plate through a sliding screw. The advantages are that: the sliding screw is adopted to realize the fine adjustment of the parallelism of the cross arm, so that a cross arm fixer is not required to be disassembled, and the labor intensity is reduced.

Description

Horizontal cross arm fixer capable of being adjusted in angle direction

Technical Field

The utility model belongs to the field of power supply of distribution networks, and particularly relates to a horizontal cross arm fixer capable of being adjusted in an angle direction.

Background

In recent years, with the further improvement of the design standard of distribution network power supply lines, the increase of distribution lines, the replacement of single cross arms of a distribution line tower and the upgrading of the single cross arms into double cross arms are increasingly carried out, so that at present, the common practice is that the operation of a trolley is carried out by at least 3 people, and the operation is completed by completely relying on manpower when the cross arms are lifted, thereby wasting time and labor. And the parallelism between the towers and between the two cross arms of a single tower can not be accurately controlled in the process of fixing the cross arms. See fig. 1, if two cross arms of the same tower are fixed, one is fixed, and the other is to be fixed, when the cross arm to be fixed is installed, once the cross arm to be fixed is not parallel to the cross arm which is fixed, fine adjustment cannot be performed, only the cross arm can be completely removed, and the cross arm can be reinstalled, so that the difficulty of replacing the cross arm is increased, the labor intensity is too high, and the defects that the installation levelness of the cross arm is not up to standard, the parallel distortion is not up to standard and the like exist, so that the reliability of power transmission equipment and live working rate is affected. In the prior art, patent application number CN201720851941.5 discloses an insulator hanging point singly changes two cross arms fixer, can lift the cross arm, realizes that the cross arm is firmly fixed, but can't adjust the parallelism between the cross arm in the installation.

Disclosure of Invention

The utility model aims to provide a horizontal cross arm fixer capable of adjusting the angle, which can support cross arms and ensure the parallelism between two cross arms in the process of fixing the cross arms.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

a horizontal cross arm fixer capable of being adjusted in an angle comprises a cross arm, a cross arm support arm, a clamping mechanism, a sliding screw and a base plate; the cross arm support arm is connected with the clamping mechanism through an eccentric pin shaft, two ends of the cross arm support arm are fixedly connected with base plates, and the base plates are connected with the cross arm; the clamping mechanism is clamped and fixed on the tower, and comprises a clamping arm A, a clamping arm B, a connecting pin, a bidirectional screw rod and a ratchet operation rod, wherein one end of the clamping arm A is connected with one end of the clamping arm B through the connecting pin, the other end of the clamping arm A is connected with the other end of the clamping arm B through the bidirectional screw rod, and the bidirectional screw rod is connected with the ratchet operation rod; the upper part of the transverse stretcher is of a U-shaped structure and is used for supporting the cross arm, and the lower part of the transverse stretcher is connected with the base plate through a sliding screw.

The upper part of the eccentric pin shaft is a flat head, the middle bottom of the cross arm support arm is fixed with a positioning plate, and the flat head can be inserted between the two positioning plates.

The top of the eccentric pin shaft is provided with a threaded hole, the center of the threaded hole is not coaxial with the center of the eccentric pin shaft, and the cross arm support arm is fixedly connected with the eccentric pin shaft through the threaded hole and a bolt.

The two ends of the bidirectional screw are provided with threads, one end of the bidirectional screw is provided with left-handed threads, and the other end of the bidirectional screw is provided with right-handed threads.

The other ends of the clamping arm A and the clamping arm B are fixedly connected with screw bases which are used for being connected with a bidirectional screw.

The substrate is internally provided with a long round hole, and the sliding screw rod penetrates through the long round hole to be in threaded connection with the substrate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the eccentric pin shaft is adopted to fix the cross arm support arm, so that the clearance between the fine adjustment cross arm and the pole tower is realized, the cross arm support arm is stabilized, and the adverse component force of traction force caused by overlarge parallel torsion of the cross arm between the pole towers can be effectively solved.

2. The sliding screw is adopted to realize the fine adjustment of the parallelism of the cross arm, so that a cross arm fixer is not required to be disassembled, and the labor intensity is reduced.

3. By adopting a modularized design, the specification of replacing or newly installing the angle steel of the cross arm can be met only by replacing the cross arm frames with different specifications, and the same cross arm fixer is used for replacing the cross arm with multiple specifications.

4. When the cross arm fixer is adopted to install the cross arm, only 1 to 2 persons are required to cooperate.

5. The space between the clamping arms is adjusted through the bidirectional screw rods, so that the cement pole towers with different diameters and double-layer cross arms with different heights are installed and replaced.

Drawings

Fig. 1 is a schematic view of an original cross arm installation state.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is a top view of the present utility model.

Fig. 5 is a cross-sectional view taken along line A-A of fig. 4.

Fig. 6 is a cross-sectional view of fig. 4 taken along line B-B.

Fig. 7 is a cross-sectional view of fig. 4 taken along line C-C.

Fig. 8 is a cross-sectional view of fig. 4 taken along line D-D.

Fig. 9 is a cross-sectional view of fig. 3 taken along line E-E.

Fig. 10 is a schematic structural view of the present utility model.

In the figure: 1-a cross stretcher 2-a cross arm support arm 3-a clamping arm A4-a clamping arm B5-a connecting pin 6-a bidirectional screw rod 7-a ratchet operation rod 8-an eccentric pin shaft 9-a base plate 10-a positioning plate 11-a screw rod seat 12-a sliding screw rod 13-a bolt 14-an overhead conductor 15-a fixed cross arm and an insulator 16-a cross arm and an insulator to be fixed.

Detailed Description

The present utility model will be described in detail below with reference to the drawings of the specification, but it should be noted that the practice of the present utility model is not limited to the following embodiments.

Referring to fig. 2-10, an angularly adjustable horizontal cross arm fixer comprises a cross stretcher 1, a cross arm support arm 2 and a clamping mechanism; the cross arm support arm 2 is connected with the clamping mechanism through an eccentric pin shaft 8, two ends of the cross arm support arm 2 are fixedly connected with base plates 9, and the base plates 9 are fixedly connected with the cross stretcher 1; the upper portion of the cross stretcher 1 is of a U-shaped structure and is used for supporting a cross arm, the lower portion of the cross stretcher 1 can be of a cylindrical structure and is provided with a groove at the bottom, a sliding screw 12 is fixed on a base plate 9, the bottom of the cross stretcher 1 is inserted into the base plate 9, the sliding screw 12 is arranged in the groove, a slotted hole is formed in the base plate 9, and the sliding screw 12 is arranged in the slotted hole, so that the bottom of the cross stretcher 1 is supported by the sliding screw 12, the relative position of the sliding screw 12 and the base plate 9 is finely adjusted, the relative position of the cross stretcher 1 and the base plate 9 (the cross arm frame 1 moves along the slotted hole in the base plate 9) is achieved, the fine adjustment of the position of the cross stretcher 1 is achieved, the distance between two circle centers of the slotted hole is 10mm, the cross stretcher 1 deviates by 10mm in the direction of the perpendicular cross arm, the position of the cross arm is adjusted in the installation process, and finally the cross arm 15 which is fixed is achieved in parallel. The cross arm fixer is not required to be removed due to non-parallelism among the cross arms in the process of installing the cross arms.

The clamping mechanism is clamped and fixed on the pole tower and comprises a clamping arm A3, a clamping arm B4, a connecting pin 5, a bidirectional screw rod 6 and a ratchet operation rod 7, one end of the clamping arm A3 is connected with one end of the clamping arm B4 through the connecting pin 5, the other end of the clamping arm A3 is connected with the other end of the clamping arm B4 through the bidirectional screw rod 6, the bidirectional screw rod 6 is connected with the ratchet operation rod 7 so as to adjust the distance between the other ends of the clamping arm A3 and the clamping arm B4, and then the clamping arm is used for holding the pole tower tightly, so that the cross arm fixer is ensured to be fixed on the pole tower.

Wherein, eccentric round pin axle 8 upper portion is the shoulder, and the bottom is fixed with locating plate 10 in the middle of the cross arm support arm 2, and the shoulder can insert between two locating plates 10, and locating plate 10 bottom can sit on eccentric round pin axle 8, plays the effect of stable cross arm support arm. The flat head part of the eccentric pin shaft 8 is provided with a threaded hole, the center of the threaded hole deviates from the center of the eccentric pin shaft 8 by 7.5mm, as shown in fig. 8, according to the position of the clamping arm clamped on the pole tower, namely the installation height adjustment of the cross arm, if the installation position is low, the diameter of the pole tower is thick (the pole tower is thin and thick), then the initial state is that the eccentric pin shaft 8 rotates to the position that the threaded hole is far away from the pole tower, and then the rotation adjustment is carried out, so that the gap between the cross arm and the pole tower is as small as possible, and then the eccentric pin shaft 8 is fixedly connected with the support arm 2 of the cross arm through the threaded hole and the bolt 13.

The two ends of the bidirectional screw rod 6 are provided with threads, one end of the bidirectional screw rod 6 is provided with left-handed threads, the other end of the bidirectional screw rod is provided with right-handed threads, and the middle of the bidirectional screw rod is provided with a hexagonal structure matched with the ratchet operation rod 7. The ratchet lever 7 may be a bi-directional ratchet wrench. The other ends of the clamping arm A3 and the clamping arm B4 are fixedly connected with a screw rod seat 11 which is connected with the bidirectional screw rod 6, and threads which are matched with the bidirectional screw rod 6 in rotation direction are arranged in the screw rod seat 11.

The cross arm support arm can be made of carbon fiber materials; the clamping arm A3, the clamping arm B4, the eccentric pin shaft 8 and the cross arm seat can be made of aluminum alloy; the cross stretcher 1 can be made of nylon or glass fiber, so that the weight of the whole cross arm fixer is reduced, and the cross stretcher is convenient to carry and transport.

In the use process, according to the diameter of the tower and the length of the bidirectional screw rod 6 at the installation position, the connecting pin 5 is taken down, the clamping arms A3 and B4 are separated to encircle the tower, and then the clamping arms A3 and B4 are combined and connected by the connecting pin 5; the two-way screw rod 6 is adjusted by the ratchet operating rod to fold the clamping arms A3 and B4 and clamp the cement pole tower until the equipment is firmly fixed on the pole tower, then one or two groups of eccentric pin shafts 8 (the condition of two groups of eccentric pin shafts 8 is shown in fig. 10), the cross arm support arm 2, the sliding screw rod 12 and the cross arm support 1 are sequentially installed, the cross arm is placed on the U-shaped structure of the cross arm support 1, the installation is started, once the cross arm is found to be not parallel to the fixed cross arm 15, the nuts outside the base plate 9 are screwed, the position of the sliding screw rod 12 in the base plate 9 is adjusted, the angle of the cross arm is adjusted until the cross arm 16 to be fixed is parallel to the fixed cross arm 15, and the operation of fixing the cross arm is continuously completed.

The utility model has modularized and lightweight design, and is applicable to the installation of double-layer cross arms with different diameters of towers.

Claims

1. The horizontal cross arm fixer capable of being adjusted in an angle is characterized by comprising a cross stretcher, a cross arm support arm, a clamping mechanism, a sliding screw rod and a base plate; the cross arm support arm is connected with the clamping mechanism through an eccentric pin shaft, two ends of the cross arm support arm are fixedly connected with base plates, and the base plates are connected with the cross arm; the clamping mechanism is clamped and fixed on the tower, and comprises a clamping arm A, a clamping arm B, a connecting pin, a bidirectional screw rod and a ratchet operation rod, wherein one end of the clamping arm A is connected with one end of the clamping arm B through the connecting pin, the other end of the clamping arm A is connected with the other end of the clamping arm B through the bidirectional screw rod, and the bidirectional screw rod is connected with the ratchet operation rod; the upper part of the transverse stretcher is of a U-shaped structure and is used for supporting the cross arm, and the lower part of the transverse stretcher is connected with the base plate through a sliding screw.

2. The horizontal cross arm fixer capable of being adjusted in an angle according to claim 1, wherein the upper part of the eccentric pin shaft is a flat head, a positioning plate is fixed at the middle bottom of the cross arm support arm, and the flat head can be inserted between the two positioning plates.

3. The horizontal cross arm fixer capable of being adjusted in an angle according to claim 1, wherein the top of the eccentric pin shaft is provided with a threaded hole, the center of the threaded hole is not coaxial with the center of the eccentric pin shaft, and the cross arm support arm is fixedly connected with the eccentric pin shaft through the threaded hole and a bolt.

4. The horizontal cross arm fixer capable of being adjusted in an angle according to claim 1, wherein both ends of the bidirectional screw rod are provided with threads, one end of the bidirectional screw rod is provided with left-handed threads, and the other end of the bidirectional screw rod is provided with right-handed threads.

5. The horizontal cross arm fixer capable of being adjusted in an angle according to claim 1, wherein the other ends of the clamping arm A and the clamping arm B are fixedly connected with screw bases for being connected with a bidirectional screw.

6. The horizontal cross arm fixer capable of being adjusted in an angle according to claim 1, wherein the base plate is internally provided with a slotted hole, and the sliding screw rod is connected with the base plate in a threaded manner through the slotted hole.