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

Abstract

The utility model relates to a horizontal cross-arm fixer capable of adjusting angles, comprising a cross-stretch frame, a cross-stretch support arm, a clamping mechanism, a sliding screw, and a base plate; the cross-stretch support arm and the clamping mechanism are connected through an eccentric pin shaft, The two ends of the arms of the cross stretcher are fixedly connected with the base plate, and the base plate is connected with the cross stretcher; the clamping mechanism is clamped and fixed on the pole tower, and the clamping mechanism includes clamping arm A, clamping arm B, connecting pin, two-way screw, Ratchet operating rod, one end of clamping arm A is connected with one end of clamping arm B through a connecting pin, the other end of clamping arm A is connected with the other end of clamping arm B through a two-way screw, and the two-way screw is connected with the ratchet operating rod; the upper part of the stretcher is The U-shaped structure is used to support the cross arm, and the lower part is connected with the base plate through a sliding screw. The advantage is that the fine adjustment of the parallelism of the cross-arm is realized by using the sliding screw, and the cross-arm fixer does not need to be disassembled, thereby reducing labor intensity.

Description

An angularly adjustable horizontal cross-arm fixer

technical field

The utility model belongs to the field of distribution network power supply, in particular to a horizontal cross-arm fixer capable of adjusting angles.

Background technique

In recent years, with the further improvement of the design standards of distribution network power supply lines, the increase of distribution circuits, the replacement of single cross-arms of distribution line towers and the upgrading of single cross-arms to double cross-arms are increasing. , at least 3 people are required for the operation, and it is time-consuming and labor-intensive to completely rely on manpower to complete the cross-arm lifting. And the parallelism between the pole towers and the two cross arms of a single pole tower cannot be accurately controlled in the process of fixing the cross arms. As shown in Figure 1, if one of the two cross-arms of the same tower has been fixed and the other is to be fixed, when installing the cross-arm to be fixed, once it is not parallel to the fixed cross-arm, fine-tuning cannot be performed, and all can only be removed and reinstalled. Installation increases the difficulty of replacing the cross-arm, the labor intensity is too high, there are many disadvantages such as the installation level of the cross-arm is not up to standard, and the parallel distortion is not up to standard, which affects the reliability of power transmission equipment and live operation rate. In the prior art, the patent application number CN201720851941.5 discloses a double cross-arm fixer with a single hanging point for insulators, which can lift the cross-arms and securely fix the cross-arms, but the distance between the cross-arms cannot be adjusted during the installation process. parallelism.

Contents of the invention

The purpose of the utility model is to provide an angularly adjustable horizontal cross-arm fixer, which can support the cross-arm and ensure the parallelism between the two cross-arms during the process of fixing the cross-arm.

In order to achieve the above object, the utility model is realized through the following technical solutions:

An angle-adjustable horizontal cross-arm fixer, including a cross-stretch frame, a cross-stretch support arm, a clamping mechanism, a sliding screw, and a base plate; the cross-stretch support arm and the clamping mechanism are connected by an eccentric pin shaft, The two ends are fixedly connected with the base plate, and the base plate is connected with the stretcher; the clamping mechanism is clamped and fixed on the pole tower, and the clamping mechanism includes a clamping arm A, a clamping arm B, a connecting pin, a two-way screw rod, and a ratchet operating rod. One end of clamping arm A is connected with one end of clamping arm B through a connecting pin, the other end of clamping arm A is connected with the other end of clamping arm B through a two-way screw, and the two-way screw is connected with the ratchet operating rod; the upper part of the stretcher is U-shaped structure, It is used to support the cross arm, and the lower part is connected with the base plate through a sliding screw.

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

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

Both ends of the two-way screw are threaded, one end of the two-way screw is left-handed, and the other end is right-handed.

The other ends of the clamping arm A and the clamping arm B are fixedly connected with a screw seat for connecting with a two-way screw.

There is an oblong hole in the base plate, and the sliding screw passes through the oblong hole and is threadedly connected with the base plate.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model adopts the eccentric pin shaft to fix the arm of the cross arm, realizes the fine adjustment of the gap between the arm and the tower, stabilizes the arm of the cross arm, and can effectively solve the disadvantage of the pulling force caused by the excessive parallel distortion of the arm between the towers. Participate.

2. The sliding screw is used to realize the fine adjustment of the parallelism of the cross-arm, without disassembling the cross-arm fixer, which reduces the labor intensity.

3. Modular design is adopted, only need to replace cross-arms of different specifications to meet the requirements of replacement or new installation of cross-arm angle steel, and realize the same cross-arm holder to replace multi-specification cross-arms.

4. When using the cross-arm fixer to install the cross-arm, only 1 to 2 people are required to cooperate to complete the installation.

5. The distance between the clamping arms is adjusted by a two-way screw, which is suitable for the installation and replacement of cement towers with different diameters and double-layer cross-arms with different heights.

Description of drawings

Figure 1 is a schematic diagram of the installation state of the original cross-arm.

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

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

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

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

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

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

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

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

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

In the figure: 1-horizontal stretcher 2-horizontal stretcher arm 3-clamping arm A4-clamping arm B 5-connecting pin 6-two-way screw 7-ratchet operating lever 8-eccentric pin 9-base plate 10-positioning plate 11 - screw seat 12 - sliding screw 13 - bolt 14 - overhead wire 15 - fixed cross arm and insulator 16 - to be fixed cross arm and insulator.

Detailed ways

The utility model is described in detail below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.

See Fig. 2-Fig. 10, a horizontal cross-arm fixer that can be adjusted in the angle direction, including a stretcher 1, a stretcher arm 2, and a clamping mechanism; the stretcher arm 2 is connected to the clamping mechanism through an eccentric pin 8 The two ends of the stretcher arm 2 are fixedly connected with the base plate 9, and the base plate 9 is fixedly connected with the stretcher 1; the upper part of the stretcher 1 is a U-shaped structure for supporting the cross-arm, and the lower part can be a cylindrical structure with slots at the bottom , the sliding screw 12 is fixed on the 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, and an oblong hole is opened on the base plate 9, and the sliding screw 12 is arranged in the oblong hole, like this, the horizontal The bottom of the stretcher 1 is supported by a sliding screw 12, and the relative position of the sliding screw 12 and the base plate 9 is finely adjusted to realize the relative position of the stretcher 1 and the base plate 9 (the stretcher 1 moves along the oblong hole in the base plate 9), and the stretcher 1 The fine adjustment of the position, as shown in Figure 9, the distance between the two centers of the oblong holes is 10mm, and the cross-stretch frame 1 is offset by 10mm in the direction vertical to the cross-arm, so that the cross-arm can adjust its position during the installation process, and finally achieve parallelism with the fixed cross-arm 15 . There is no need to remove the cross-arm fixer due to the non-parallel between the cross-arms during the installation of the cross-arm.

The clamping mechanism is clamped and fixed on the pole tower. The clamping mechanism includes a clamping arm A3, a clamping arm B4, a connecting pin 5, a two-way screw 6, and a ratchet operating rod 7. One end of the clamping arm A3 is connected to one end of the clamping arm B4. The pin 5 is connected, the other end of the clamping arm A3 is connected with the other end of the clamping arm B4 through a two-way screw 6, and the two-way screw 6 is connected with the ratchet operating lever 7 to adjust the distance between the other ends of the clamping arm A3 and the clamping arm B4, and then Make the clamping arm hold the pole tower tightly to ensure that the cross arm holder is fixed on the pole tower.

Wherein, the upper part of the eccentric pin shaft 8 is a flat head, and a positioning plate 10 is fixed on the middle bottom of the cross stretcher support arm 2, the flat head can be inserted between the two positioning plates 10, and the bottom end of the positioning plate 10 can sit on the eccentric pin shaft 8, It plays the role of stabilizing the cross arm. The flat head of the eccentric pin shaft 8 has a threaded hole separately, and the center of the threaded hole deviates from the center of the eccentric pin shaft 8 by 7.5 mm, as shown in Figure 8. According to the position where the clamping arm is clamped on the pole tower, that is, the installation height of the cross arm is adjusted. If the installation position is low, the diameter of the tower is thick (the top of the tower is thin and the bottom is thick), then the initial state is that the eccentric pin shaft 8 is turned to the threaded hole away from the position of the tower, and then rotated to adjust, so that the gap between the cross arm and the tower is as small as possible , and then the eccentric pin shaft 8 is fixedly connected with the stretcher arm 2 through the threaded hole and the bolt 13 .

Both ends of the two-way screw rod 6 are threaded, and one end of the two-way screw rod 6 is a left-handed thread, the other end is a right-handed thread, and the middle is a hexagonal structure matched with the ratchet operating rod 7 . The ratchet operating lever 7 can be a two-way ratchet wrench. The other ends of the clamping arm A3 and the clamping arm B4 are both fixedly connected with a screw seat 11 for connecting with the bidirectional screw 6 , and the screw seat 11 has threads matching the direction of rotation of the bidirectional screw 6 .

The arm of the cross arm can be made of carbon fiber material; the clamping arm A3, clamping arm B4, eccentric pin 8, and the cross arm can be made of aluminum alloy; the cross stretcher 1 can be made of nylon or glass fiber to realize the overall cross arm The light weight of the holder makes it easy to carry and transport.

During use, select the length of the two-way screw 6 according to the diameter of the tower and the installation position, remove the connecting pin 5, separate the clamping arms A3 and B4 to encircle the tower, and then close the clamping arms A3 and B4 and connect them with the connecting pin 5; The ratchet joystick adjusts the two-way screw 6 so that the clamping arm A3 and the clamping arm B4 close together and clamp the cement tower until the equipment is firmly on the tower, and then install one or two sets of eccentric pins 8 in sequence (Figure 10 shows two sets of eccentric pin 8), the cross-arm support arm 2, the sliding screw 12 and the cross-stretch frame 1 place the cross-arm on the U-shaped structure of the cross-stretch frame 1, and start to install. Once it is found that the cross-arm and the fixed cross-arm 15 Parallel, screw the nut outside the base plate 9, adjust the position of the sliding screw 12 in the base plate 9, and then adjust the angle of the cross arm until the cross arm 16 to be fixed is parallel to the fixed cross arm 15, and continue to fix the cross arm homework.

The utility model has a modularized and lightweight design, and is applicable to pole tower diameters of different specifications and double-layer cross-arm installation.

Claims (6)

1. An angularly adjustable horizontal cross arm fixer, characterized in that it comprises a cross stretcher, a cross stretcher arm, a clamping mechanism, a sliding screw, and a base plate; the cross stretcher arm and the clamping mechanism pass through an eccentric pin connection, the two ends of the arm of the stretcher are fixedly connected with the base plate, and the base plate is connected with the stretcher; the clamping mechanism is clamped and fixed on the pole tower, and the clamping mechanism includes clamping arm A, clamping arm B, connecting pin, two-way Screw, ratchet operating rod, one end of clamping arm A is connected with one end of clamping arm B through a connecting pin, the other end of clamping arm A is connected with the other end of clamping arm B through a two-way screw, and the two-way screw is connected with the ratchet operating rod; cross stretcher The upper part is a U-shaped structure for supporting the cross arm, and the lower part is connected with the base plate through a sliding screw. 2. An angularly adjustable horizontal cross-arm fixer according to claim 1, characterized in that the upper part of the eccentric pin is a flat head, and the middle bottom of the cross-stretcher arm is fixed with a positioning plate, the flat head Can be inserted between two positioning plates. 3. An angularly adjustable horizontal cross-arm fixer according to claim 1, characterized in that the top of the eccentric pin has a threaded hole, and the center of the threaded hole is different from the center of the eccentric pin The shaft, the stretcher arm and the eccentric pin are fixedly connected through threaded holes and bolts. 4. The angularly adjustable horizontal cross-arm fixer according to claim 1, wherein both ends of the two-way screw are threaded, one end of the two-way screw is a left-handed thread, and the other end is a thread. Right hand thread. 5. An angularly adjustable horizontal cross-arm fixer according to claim 1, characterized in that, the other ends of the clamping arm A and the clamping arm B are all fixedly connected to the two-way screw rod. screw seat. 6 . The angularly adjustable horizontal cross-arm fixer according to claim 1 , wherein an oblong hole is opened in the base plate, and the sliding screw is threadedly connected with the base plate through the oblong hole. 7 .

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