High-voltage line cross arm type insulator

Abstract

The utility model relates to the technical field of high-voltage line equipment, in particular to a high-voltage line cross arm type insulator which comprises a connecting shaft, an upper insulator body, a lower insulator body and an inner insulator body, and the upper insulator body, the lower insulator body and the inner insulator body are all connected with the connecting shaft in a sliding mode. A cushioning and anti-collision assembly capable of preventing mutual collision between the insulators is arranged between the upper insulator body and the inner insulator body and between the upper insulator body and the lower insulator body, a cushioning and anti-collision assembly is also arranged below the lower insulator body, and the top end of the connecting shaft is in threaded connection with a limiting cap. According to the technical scheme of the utility model, through the arrangement of the cushioning and anti-collision assembly, the shake between the insulators on the connecting shaft can be relieved by the cushioning and anti-collision assembly, and the collision between the edges of the insulators can be blocked by the cross rod and the inclined rod, so that the cross arm insulators blown by wind cannot collide with each other. Therefore, the cross arm insulator which does not reach the service life limit is not damaged in advance to cause loss.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage line equipment, in particular to a cross-arm insulator for a high-voltage line. Background Art

[0002] High-voltage line cross-arm insulators are a critical insulating component in high-voltage transmission lines. Installed on the cross-arm, they are primarily made of porcelain or composite materials and possess excellent insulating properties. Their significance lies in, on the one hand, effectively isolating the high-voltage conductors from the towers, preventing current leakage through the towers to the ground, ensuring the safe transmission of electrical energy along the conductors and the normal operation of the power system. On the other hand, cross-arm insulators maintain stable insulation performance in diverse environmental conditions (such as wind, rain, ice, and snow), playing an irreplaceable role in ensuring the stability and reliability of power supply and the safety of personnel and equipment near the lines.

[0003] In real life, the function of the cross-arm insulator is to insulate the conductor from the cross-arm and to provide a certain degree of support for the conductor. However, the cross-arm insulator is generally installed on a high-voltage rack located at a high altitude. When blown by a certain wind force at high altitude, the insulator will shake. In severe cases, the cross-arm insulators may collide with each other and cause damage, thereby causing the cross-arm insulator to be damaged prematurely before reaching its service life limit, resulting in losses. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of existing cross-arm insulators that are generally arranged on high-voltage racks located at high places. When blown by a certain wind force at high altitudes, the insulators will shake, and in serious cases, the cross-arm insulators will collide with each other and cause damage, thereby causing cross-arm insulators that have not reached their service life limit to be damaged prematurely, resulting in losses. A cross-arm insulator for high-voltage lines is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-voltage line cross-arm insulator comprises a connecting shaft, an upper insulator body, a lower insulator body, and an inner insulator body. The upper insulator body, the lower insulator body, and the inner insulator body are all slidably connected to the connecting shaft. A shock-absorbing and anti-collision component is provided between the upper insulator body and the inner insulator body and the lower insulator body to prevent the insulators from colliding with each other. A shock-absorbing and anti-collision component is also provided below the lower insulator body. The top end of the connecting shaft is threadedly connected to a limiting cap.

[0007] Preferably, a stopper is fixedly connected to the bottom end of the connecting shaft, symmetrically distributed sliding grooves are provided on the outer wall of the connecting shaft, and an external thread is provided on the outer wall of the top end of the connecting shaft.

[0008] Preferably, a sliding hole is opened at the center of the upper insulator body, the lower insulator body and the inner insulator body, and the sliding hole is slidably connected to the outer wall of the connecting shaft.

[0009] Preferably, the shock-absorbing and anti-collision assembly includes a lower sliding sleeve, an upper sliding sleeve, a limit block, a sliding cavity, a spring, a sliding sleeve, a cross bar, an oblique bar, and a suction cup. The limit block is fixedly connected to the inner wall of the lower sliding sleeve, and the inner wall of the upper sliding sleeve is fixedly connected to the limit block.

[0010] Preferably, the sliding cavity is arranged at the top of the lower sliding sleeve, the spring is arranged in the sliding cavity, the sliding sleeve is fixedly connected to the bottom end of the upper sliding sleeve, the cross bar is fixedly connected to the outer wall of the lower sliding sleeve, the inclined rod is fixedly connected to the outer wall of the upper sliding sleeve, and the suction cup is arranged at the top of the inclined rod.

[0011] Preferably, one end of the spring is fixedly connected to the bottom end of the inner wall of the sliding cavity, the other end of the spring is fixedly connected to the bottom end of the outer wall of the sliding sleeve, the sliding sleeve is slidably connected to the sliding cavity, and the cross bar is fixedly connected to the oblique bar.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the utility model is in use, the shock-absorbing and anti-collision component can be installed between the insulators, and the suction cup can be adsorbed on the bottom end of the insulator. When the wind blows, the shaking between different insulators on the connecting shaft will be slowed down by the shock-absorbing and anti-collision component, and the collision between the edges of the insulators will be blocked by the cross bar and the oblique bar, so that the cross-arm insulators blown by the wind will not collide with each other, so that the cross-arm insulators that have not reached the service life limit will not be damaged in advance, causing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a cross-arm insulator for a high-voltage line proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the connecting shaft of a high-voltage line cross-arm insulator proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of an insulator for a high-voltage line cross-arm insulator proposed by the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of a shock-absorbing and anti-collision component of a cross-arm insulator for a high-voltage line proposed by the utility model.

[0018] In the figure: 1. Connecting shaft; 2. Upper insulator body; 3. Lower insulator body; 4. Inner insulator body; 5. Shock-absorbing and anti-collision component; 6. Limiting cap; 7. Stop block; 8. Slide groove; 9. External thread; 10. Slide hole; 11. Lower sleeve; 12. Upper sleeve; 13. Limit block; 14. Slide cavity; 15. Spring; 16. Sleeve; 17. Cross bar; 18. Diagonal bar; 19. Suction cup. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Reference Figures 1-4 A high-voltage line cross-arm insulator includes a connecting shaft 1, an upper insulator body 2, a lower insulator body 3, and an inner insulator body 4. The upper insulator body 2, the lower insulator body 3, and the inner insulator body 4 are all slidably connected to the connecting shaft 1. A shock-absorbing and anti-collision component 5 is provided between the upper insulator body 2 and the inner insulator body 4 and the lower insulator body 3 to prevent the insulators from colliding with each other. A shock-absorbing and anti-collision component 5 is also provided below the lower insulator body 3. The top end of the connecting shaft 1 is threadedly connected to a limiting cap 6.

[0021] It should be noted that the upper insulator body 2, the lower insulator body 3, the inner insulator body 4 and the suction cup 19 are existing technologies. The specific model specifications need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0022] Furthermore, a stopper 7 is fixedly connected to the bottom end of the connecting shaft 1 , symmetrically distributed sliding grooves 8 are provided on the outer wall of the connecting shaft 1 , and an external thread 9 is provided on the outer wall of the top end of the connecting shaft 1 .

[0023] The lower insulator body 3 is located above the stopper 7 , so that the stopper 7 can prevent the lower insulator body 3 from falling.

[0024] Furthermore, a sliding hole 10 is opened at the center of the upper insulator body 2 , the lower insulator body 3 and the inner insulator body 4 , and the sliding hole 10 is slidably connected to the outer wall of the connecting shaft 1 .

[0025] The upper insulator body 2 is located at the top of the connecting shaft 1, the lower insulator body 3 is located at the bottom of the connecting shaft 1, and the inner insulator body 4 is located between the upper insulator body 2 and the lower insulator body 3.

[0026] Furthermore, the shock-absorbing and anti-collision component 5 includes a lower sliding sleeve 11, an upper sliding sleeve 12, a limit block 13, a sliding cavity 14, a spring 15, a sliding sleeve 16, a cross bar 17, an inclined bar 18, and a suction cup 19. The limit block 13 is fixedly connected to the inner wall of the lower sliding sleeve 11, and the inner wall of the upper sliding sleeve 12 is fixedly connected to the limit block 13.

[0027] The size of the limiting block 13 is adapted to the size of the inner wall of the sliding groove 8 , and the limiting block 13 prevents the lower sliding sleeve 11 and the upper sliding sleeve 12 from rotating on the connecting shaft 1 .

[0028] Furthermore, the sliding cavity 14 is arranged at the top of the lower sliding sleeve 11, the spring 15 is arranged in the sliding cavity 14, the sliding sleeve 16 is fixedly connected to the bottom end of the upper sliding sleeve 12, the cross bar 17 is fixedly connected to the outer wall of the lower sliding sleeve 11, the inclined rod 18 is fixedly connected to the outer wall of the upper sliding sleeve 12, and the suction cup 19 is arranged at the top of the inclined rod 18.

[0029] The upper sliding sleeve 12 abuts against the central bottom end of the insulator body, and the lower sliding sleeve 11 abuts against the top end of the insulator body.

[0030] Furthermore, one end of the spring 15 is fixedly connected to the bottom end of the inner wall of the sliding cavity 14 , the other end of the spring 15 is fixedly connected to the bottom end of the outer wall of the sliding sleeve 16 , the sliding sleeve 16 is slidingly connected to the sliding cavity 14 , and the cross bar 17 is fixedly connected to the oblique bar 18 .

[0031] Among them, a soft pad is provided at the bottom end of the outer wall of the cross bar 17, and the cross bar 17 and the oblique bar 18 are made of relatively tough and elastic materials, which can prevent the insulators from colliding with each other when the insulators shake.

[0032] Working principle: When using the above device, first insert the shock-absorbing and anti-collision component 5 along the slide groove 8 onto the connecting shaft 1 until it is against the block 7, then insert the lower insulator body 3 onto the connecting shaft 1 and against the top of the upper sleeve 12, then put in the shock-absorbing and anti-collision component 5, the inner insulator body 4, the shock-absorbing and anti-collision component 5, the upper insulator body 2 in sequence, and finally install the limiting cap 6 to the top of the connecting shaft 1, thus completing the installation of the insulator; during use, if strong winds cause the insulator to shake violently, the collision between the insulators can be alleviated by the spring 15 between the upper sleeve 12 and the lower sleeve 11, and the bottom end of the outer wall of the insulator edge will be adsorbed by the suction cup 19. When the outer walls of different insulator edges are about to collide, they will first be blocked by the bottom end of the cross bar 17, and the bottom end of the cross bar 17 is provided with a cushion, which can reduce the collision between the insulators and greatly reduce the damage to the insulator.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cross-arm insulator for a high-voltage line, comprising a connecting shaft (1), an upper insulator body (2), a lower insulator body (3), and an inner insulator body (4), characterized in that: The upper insulator body (2), the lower insulator body (3), and the inner insulator body (4) are all slidably connected to the connecting shaft (1); a shock-absorbing and anti-collision component (5) capable of preventing the insulators from colliding with each other is provided between the upper insulator body (2), the inner insulator body (4), and the lower insulator body (3); a shock-absorbing and anti-collision component (5) is also provided below the lower insulator body (3); and a limiting cap (6) is threadedly connected to the top end of the connecting shaft (1).

2. A high voltage line cross-arm insulator according to claim 1, characterized in that: The bottom end of the connecting shaft (1) is fixedly connected with a stopper (7), the outer wall of the connecting shaft (1) is provided with symmetrically distributed sliding grooves (8), and the top outer wall of the connecting shaft (1) is provided with an external thread (9).

3. The high voltage line cross-arm insulator according to claim 1, characterized in that: Sliding holes (10) are provided at the centers of the upper insulator body (2), the lower insulator body (3), and the inner insulator body (4), and the sliding holes (10) are slidably connected to the outer wall of the connecting shaft (1).

4. A high voltage line cross-arm insulator according to claim 1, characterized in that: The shock-absorbing and anti-collision component (5) comprises a lower sliding sleeve (11), an upper sliding sleeve (12), a limit block (13), a sliding cavity (14), a spring (15), a sliding sleeve (16), a cross bar (17), an inclined bar (18), and a suction cup (19); the limit block (13) is fixedly connected to the inner wall of the lower sliding sleeve (11), and the inner wall of the upper sliding sleeve (12) is fixedly connected to the limit block (13).

5. A high voltage line cross-arm insulator according to claim 4, characterized in that: The sliding cavity (14) is arranged at the top end of the lower sleeve (11), the spring (15) is arranged in the sliding cavity (14), the sliding sleeve (16) is fixedly connected to the bottom end of the upper sliding sleeve (12), the cross bar (17) is fixedly connected to the outer wall of the lower sleeve (11), the inclined rod (18) is fixedly connected to the outer wall of the upper sliding sleeve (12), and the suction cup (19) is arranged at the top end of the inclined rod (18).

6. A high voltage line cross-arm insulator according to claim 5, characterized in that: One end of the spring (15) is fixedly connected to the bottom end of the inner wall of the sliding cavity (14), the other end of the spring (15) is fixedly connected to the bottom end of the outer wall of the sliding sleeve (16), the sliding sleeve (16) is slidably connected to the sliding cavity (14), and the cross bar (17) is fixedly connected to the oblique bar (18).

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