CN211063305U - Screw lifting type insulating cross arm - Google Patents

Abstract

The utility model belongs to the technical field of electrical accessories, in particular to a lead screw lifting type insulating cross arm, comprising a fixed outer cylinder, an upper fixed sleeve of the fixed outer cylinder is connected with a mounting seat, and a front surface of the mounting seat is fixedly mounted with a mounting seat. Arc-shaped abutting block, a mounting plate is fixed with bolts on the front of the mounting seat, a screw rod is movably arranged inside the fixed outer cylinder, and an adjustment inner cylinder is threadedly connected to the screw rod, and the outer wall of the adjustment inner cylinder is connected with the fixed outer cylinder. The inner walls of the barrel are in contact and slidingly connected. In the utility model, the cross-arm frame is fixed on the connecting plate by bolts, and then the fixing outer cylinder is fixed on the cement rod through the cooperation of the mounting seat, the arc-shaped abutting block and the mounting plate, and then the adjusting inner cylinder is driven along the fixing by rotating the screw rod. The outer cylinder slides up in a straight line to adjust the height of the cross-arm frame. At this time, the cable is lifted by the cable support on the cross-arm frame, so it is convenient to disassemble the original metal cross-arm.

Description

A lead screw lifting type insulating cross arm

technical field

The utility model relates to the technical field of electric power accessories, in particular to a lead screw lifting type insulating cross arm.

Background technique

With the continuous popularization of composite materials in the main network transmission lines, in order to improve the insulation level of the 10kV distribution network transmission lines and greatly reduce the operation and maintenance costs, the transformation method of using composite material insulation cross-arms instead of the original metal cross-arms is gradually being used. It has been popularized and applied nationwide, and it has initially shown a good overvoltage protection effect. At the same time, the requirements of the State Grid Corporation for the reliability of power supply are gradually increasing, and the requirements for the service standards of power supply companies to customers are becoming more and more strict. Live work is a line maintenance method with high technical content, strict safety skills and significant economic benefits.

However, in the process of replacing the insulating cross arm with the metal cross arm during live work, there are the following problems:

1. The distribution lines of cement poles generally have a small space size. When installing the insulating cross-arm, it will be closer to the original metal cross-arm. Because the insulating cross-arm needs to be used to lift the wires, the metal cross-arm can be disassembled. , and the installation of the insulating cross-arm needs to be installed after the metal cross-arm is installed. Therefore, during the installation of the insulating cross-arm, at least two high-altitude electricians are required to cooperate. Due to the small active area of the working environment, many live work Affected by the terrain, the construction site cannot be approached by the insulating shaking arm truck, which brings inconvenience to the installation of the insulating cross arm;

2. Although the position of the cable support block on the insulating cross arm can be adjusted, it was difficult to position and fix the cable support block at that time, and it was difficult to perform fine adjustment at high altitude.

Utility model content

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model provides a lead screw lift-type insulating cross-arm, which solves the problems of inconvenient construction and installation and difficulty in adjusting the position of the cable support block during the process of replacing the original metal cross-arm with the existing insulating cross-arm .

(2) Technical solutions

In order to achieve the above purpose, the present utility model provides the following technical solutions: a lead screw lift-type insulating cross arm, comprising a fixed outer cylinder, a mounting seat is connected to the upper fixed sleeve of the fixed outer cylinder, and a front surface of the mounting seat is fixed An arc-shaped abutting block is installed, a mounting plate is fixed with bolts on the front of the mounting seat, a screw is movably arranged inside the fixing outer cylinder, and an adjusting inner cylinder is threadedly connected to the screw, and the outer wall of the adjusting inner cylinder is connected with the inner cylinder. The inner wall of the fixed outer cylinder is in contact and slidingly connected, the top of the adjustment inner cylinder is fixedly installed with a connecting plate, the top of the connecting plate is bolted with a cross arm frame, and the front and back of the inner wall of the cross arm frame are fixedly installed A limit slide plate, the front and back of the cross arm frame are provided with fixing strip holes, the cross arm frame slides through the limit slide plate and the fixed strip hole and is fixed with a cable support for supporting the cable. A fixed seat is fixedly installed on the front of the frame.

As a preferred technical solution of the present invention, one end of the screw rod is fixedly connected to the bottom of the fixed outer cylinder through a bearing seat.

As a preferred technical solution of the present invention, a turning handle is fixedly installed at one end of the screw rod located outside the fixed outer cylinder.

As a preferred technical solution of the present invention, the inner wall of the fixed outer cylinder is symmetrically fixed with two arc-shaped guide strips, and the outer wall of the adjustment inner cylinder is symmetrically provided with two arc-shaped guide strips. The arc guide groove of the arc guide strip is slidably connected with the two arc guide strips through the two arc guide grooves.

As a preferred technical solution of the present invention, the cable support includes a support block body, and two locking blocks are fixedly installed at the bottom of the support block body, and each of the locking blocks corresponds to The limit slide is slidably connected, the top of the support block body is provided with an arc-shaped support groove, and the cable support is fixedly connected to the cross-arm frame through the cooperation of the double-ended stud and the nut assembly.

(3) Beneficial effects

Compared with the prior art, the utility model provides a lead screw lifting type insulating cross arm, which has the following beneficial effects:

1. This lead screw lift-type insulating cross-arm, the cross-arm frame is fixed on the connecting plate by bolts, and then the fixed outer cylinder is fixed on the cement pole through the cooperation of the mounting seat, the arc-shaped resistance block and the mounting plate, and then by rotating The screw drives the adjusting inner cylinder to slide straight up along the fixed outer cylinder, so as to adjust the height of the cross-arm frame. At this time, the cable is lifted by the cable support on the cross-arm frame, so it is convenient to disassemble the original metal cross-arm. , In the process of replacing the metal cross arm, only one aerial worker is needed, and the other worker can rotate the screw on the ground, so the scope of activities of the aerial worker is increased, which is conducive to the installation operation, so it can improve the For the installation efficiency of the insulating cross-arm, after the metal cross-arm is removed, the insulating cross-arm can be fixed with the cement pole.

2. In this lead screw lift-type insulating cross-arm, after the cross-arm frame is fixed with the cement rod, the cross-arm frame and the connecting plate are separated, and then the mounting plate and the mounting seat are disassembled, so the structure of the utility model can be used repeatedly. , the use value is high.

3. The lead screw lift type insulation cross arm, the position of the cable support can be adjusted by the cooperation of the limit slide and the fixed bar hole, and the stability of the cable support position adjustment process is high, so it is convenient for the position adjustment work. , especially when working at heights, which greatly facilitates the operation of the staff.

Description of drawings

1 is a front view of a three-dimensional structure of the present utility model;

2 is a cross-sectional view of the three-dimensional structure of the present utility model;

Figure 3 is a side view of the structure of the utility model;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 of the present utility model.

In the figure: 1. Fixed outer cylinder; 2. Mounting seat; 3. Arc-shaped interference block; 4. Mounting plate; 5. Screw rod; 6. Adjusting inner cylinder; 7. Arc-shaped guide strip; 8. Arc-shaped guide groove; 9. Connecting plate; 10. Cross arm frame; 11. Limiting slide plate; 12. Fixing strip hole; 13. Cable support; 131. Main body of support block; , Turn handle; 15. Fixed seat.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example

1-4, the present utility model provides the following technical solutions: a lead screw lift-type insulating cross arm, comprising a fixed outer cylinder 1, the upper fixed sleeve of the fixed outer cylinder 1 is connected with a mounting seat 2, and the front surface of the mounting seat 2 An arc-shaped abutment block 3 is fixedly installed on it, a mounting plate 4 is fixed with a front bolt of the mounting seat 2, a screw 5 is movably arranged inside the fixed outer cylinder 1, and an adjusting inner cylinder 6 is threadedly connected to the screw 5. The outer wall is in contact with the inner wall of the fixed outer cylinder 1 and is slidably connected, the top end of the adjustment inner cylinder 6 is fixedly installed with a connecting plate 9, the top of the connecting plate 9 is bolted with a cross-arm frame 10, and the front and back of the inner wall of the cross-arm frame 10 are both. The limit slide plate 11 is fixedly installed, and the front and back of the cross arm frame 10 are provided with fixed strip holes 12. The cross arm frame 10 slides through the limit slide plate 11 and the fixed strip hole 12 and is fixed with a cable support 13 for supporting the cable. , the front side of the cross arm frame 10 is fixedly installed with a fixing seat 15 .

In this embodiment, there will be an arc-shaped structure on the inner side of the mounting plate 4. First, the arc-shaped interference block 3 on the mounting seat 2 is brought into contact with the surface of the cement rod, and then the arc-shaped structure of the mounting plate 4 is connected with the cement rod. surface contact, and then the mounting plate 4 and the mounting seat 2 are fixed by the cooperation of bolts, nuts and washers, so as to fix the position of the fixed outer cylinder 1; at this time, the cross arm frame 10 has been fixed on the connecting plate by bolts and 9 top, so only need to rotate the screw 5 to drive the adjustment inner cylinder 6 to slide up along the fixed outer cylinder 1, so as to adjust the height of the cross-arm frame 10, and use the cable support 13 on the cross-arm frame 10 to adjust the cable For lifting, it is not necessary for a staff to maintain the position of the insulating cross-arm at high altitude. In the process of replacing the metal cross-arm, only one high-altitude operator is needed, and another staff can rotate the screw 5 on the ground. , At this time, the range of high-altitude activities of an aerial worker is increased, which is convenient for the disassembly of the original metal cross-arm, which is conducive to the installation of the insulating cross-arm, so the installation efficiency of the insulating cross-arm can be improved. When the metal cross-arm is removed Then, fix the insulating cross arm and the cement pole; the structure of the fixing seat 15 is similar to that of the mounting seat 2, and the hoop type structure is used to fix the fixing seat and the 15 cement pole; when the cross arm frame 10 is installed After completion, remove the bolts between the connecting plate 9 and the cross arm frame 10, then disassemble and separate the mounting plate 4 from the mounting base 2, and remove the mounting structure for installation of the next insulating cross arm.

Specifically, one end of the screw rod 5 is fixedly connected to the bottom of the fixed outer cylinder 1 through a bearing seat.

In this embodiment, it is ensured that the screw 5 can rotate normally and stably.

Specifically, a rotating handle 14 is fixedly installed at one end of the screw 5 located outside the fixed outer cylinder 1 .

In this embodiment, the rotation handle 14 is used to facilitate the rotation of the screw rod 5 and to facilitate the adjustment of the height of the cross arm frame 10 .

Specifically, the inner wall of the fixed outer cylinder 1 is symmetrically fixed with two arc-shaped guide bars 7, and the outer wall of the adjustment inner cylinder 6 is symmetrically provided with two arc-shaped guide grooves 8 that are adapted to the arc-shaped guide bars 7. The arc-shaped guide bar 7 is slidably connected with the two arc-shaped guide bars 7 through the two arc-shaped guide grooves 8 .

In this embodiment, when the screw 5 rotates to drive the adjustment inner cylinder 6 to adjust the height, the two arc guide grooves 8 and the two arc guide strips 7 cooperate to adjust the height of the adjustment inner cylinder 6 during the height adjustment process. Stability is enhanced.

Specifically, the cable support 13 includes a support block main body 131, and two locking blocks 132 are fixedly installed at the bottom of the support block main body 131. The top of the seat block main body 131 is provided with an arc-shaped support groove 133, and the cable support 13 is fixedly connected to the cross arm frame 10 through the cooperation of the double-ended stud and the nut assembly.

In this embodiment, the support block main body 131 is slidably connected to the two limit slide plates 11 through the two locking blocks 132, and the mutual structural design has a limiting effect. Therefore, in the process of adjusting the position of the support block main body 131, only It is only necessary to keep the support block main body 131 sliding on the cross arm frame 10, so the adjustment work is simple, and the support block main body 131 is provided with a mounting hole with a diameter equal to the width of the fixing bar hole 12. Fix the strip hole 12 and the mounting hole, and then set nut assemblies on both ends of the stud, relying on the cooperation of the nut and washer to fix the stud and the front and back of the main body 131 of the support block, at this time, you can The support block main body 131 and the cross arm frame 10 are fixed.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (5)

1. A lead screw lifting type insulating cross arm is characterized in that: comprising a fixed outer cylinder (1), the upper fixed sleeve of the fixed outer cylinder (1) is connected with a mounting seat (2), the mounting seat (2) An arc-shaped abutting block (3) is fixedly installed on the front of the mounting seat (2), a mounting plate (4) is fixed with bolts on the front of the mounting seat (2), and a screw (5) is movably provided inside the fixing outer cylinder (1). , the screw (5) is threadedly connected with an adjustment inner cylinder (6), the outer wall of the adjustment inner cylinder (6) is in contact with the inner wall of the fixed outer cylinder (1) and is slidably connected, the adjustment inner cylinder (6) ) is fixedly installed with a connecting plate (9), the top of the connecting plate (9) is bolted with a cross-arm frame (10), and the front and back of the inner wall of the cross-arm frame (10) are fixedly installed with limited slides (11), the front and back of the cross arm frame (10) are provided with fixing strip holes (12), and the cross arm frame (10) slides through the limit slide plate (11) and the fixing strip hole (12) A cable support (13) for supporting the cable is fixed, and a fixing seat (15) is fixedly installed on the front of the cross arm frame (10). 2 . The lead screw lifting type insulating cross arm according to claim 1 , wherein one end of the screw rod ( 5 ) is fixedly connected to the bottom of the fixed outer cylinder ( 1 ) through a bearing seat. 3 . 3. A lead screw lift-type insulating cross arm according to claim 2, characterized in that: a turning handle (14) is fixedly installed at one end of the screw rod (5) located outside the fixed outer cylinder (1). 4. A lead screw lifting type insulating cross arm according to claim 1, characterized in that: the inner wall of the fixed outer cylinder (1) is symmetrically and fixedly installed with two arc-shaped guide bars (7), and the adjusting The outer wall of the inner cylinder (6) is symmetrically provided with two arc-shaped guide grooves (8) adapted to the arc-shaped guide strips (7), and the arc-shaped guide strips (7) pass through the arc-shaped guide strips (7). The two arc guide grooves (8) are slidably connected with the two arc guide bars (7). 5. A lead screw lift-type insulating cross arm according to claim 1, characterized in that: the cable support (13) comprises a support block main body (131), and the support block main body (131) has a Two locking blocks (132) are fixedly installed at the bottom, each of the locking blocks (132) is slidably connected with the corresponding limit slide (11), and the top of the support block main body (131) is provided with An arc-shaped support groove (133), the cable support (13) is fixedly connected to the cross arm frame (10) by means of a double-ended stud and a nut assembly.

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