Anti-vibration grading ring

Abstract

The utility model discloses an anti-vibration grading ring, which belongs to the technical field of grading ring equipment, and comprises a lower ring, an upper ring is arranged above the lower ring, a plurality of connecting rods are fixed between the lower ring and the upper ring, the connecting rods are annularly distributed, a mounting sleeve connected with the upper ring is arranged at the center of the upper ring, and the mounting sleeve is connected with the lower ring. An expansion clamping assembly is arranged in the mounting sleeve, and a liquid pressing assembly is arranged outside the expansion clamping assembly; a certain amount of liquid is pressed into the expansion clamping assembly through the liquid pressing assembly, so that the expansion clamping assembly expands, the expansion clamping assembly is tightly attached and fixed to the end portion in an expansion mode, convenient installation of the grading ring is achieved, the problem that a conventional grading ring is tedious in operation when being installed and fixed is solved, and the installation efficiency is improved. The assembling and disassembling efficiency of the grading ring is effectively improved, the grading ring cannot be loosened after long-time vibration, potential safety hazards caused by falling of the grading ring due to loosening of bolts and nuts are avoided, and the service life of the grading ring is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of equalizing ring equipment, and in particular relates to an anti-vibration equalizing ring. Background Art

[0002] Graduating rings primarily protect against side lightning strikes. Suitable for AC voltage applications, they distribute high voltage evenly around an object, ensuring no potential difference between parts of the ring, thus achieving voltage balancing. The ring's purpose is to evenly distribute voltage across the entire insulator or insulator string. Typically, an insulator or insulator string is at the conductor potential and earth potential, respectively, bearing the phase voltage. However, due to the combined capacitance of the conductor to the earth and the combined capacitance between the conductors, the phase voltage is not uniformly distributed across the insulator or insulator string. The voltage drop is greatest on insulators near the conductor end, gradually decreasing further away, and increasing again near the tower crossarm. This can lead to corona. The principle behind grading rings is that installing a grading ring at the conductor end of an insulator or insulator string acts like adding a shunt capacitor, increasing the capacitance between the insulator and the conductor and improving voltage distribution.

[0003] As an essential component for improving the electric field distribution at the end of composite insulators, the grading ring (discharge ring) needs to be installed at high altitude. Conventional grading ring structures are all bolt-locked structures. During the installation and construction process, construction workers need to use fixing tools to tighten multiple bolts to install and fix the grading ring. The operation is cumbersome and the assembly and disassembly are inconvenient. Moreover, when the grading ring (discharge ring) is installed on the composite insulator and is subjected to other external forces such as strong winds, the bolts are prone to loosening and falling off after long-term vibration, affecting the installation stability and service life of the grading ring.

[0004] Therefore, an anti-vibration pressure-equalizing ring is needed to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present invention is to provide an anti-vibration pressure-equalizing ring to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-vibration pressure-equalizing ring, comprising a lower ring, an upper ring is arranged above the lower ring, a connecting rod is fixed between the lower ring and the upper ring, a plurality of connecting rods are provided and the plurality of connecting rods are distributed in a ring shape, a mounting sleeve connected to the upper ring is provided at the center of the upper ring, an expansion clamp assembly is provided inside the mounting sleeve, and a pressure liquid assembly is provided outside the expansion clamp assembly.

[0007] It should be noted that the expansion clamp assembly includes an annular rubber block disposed inside the mounting sleeve and fixedly attached to the inner wall of the mounting sleeve, and an inner cavity is defined inside the annular rubber block.

[0008] It is further worth noting that the liquid pressure component includes an external liquid cylinder fixed on the outer side wall of the annular rubber block and connected to the inner cavity, a nut sleeve is fixed in one end of the external liquid cylinder away from the annular rubber block, a threaded rod is connected to the inner thread of the nut sleeve, and a piston plate is fixed on one end of the threaded rod located inside the external liquid cylinder, which fits tightly with the inner side wall of the external liquid cylinder.

[0009] It should be further explained that an end plate is fixed to one end of the threaded rod located outside the external liquid cylinder, and a plurality of convex ribs distributed in an annular shape are provided on the side surface of the end plate.

[0010] As a preferred embodiment, a connecting block is fixed on the inner side wall of the upper ring, and a plurality of connecting blocks are provided and distributed in a ring shape. A rubber column is fixed between the outer side wall of the mounting sleeve and the connecting block.

[0011] As a preferred embodiment, rubber convex points are fixed on the inner side surface of the annular rubber block, and a plurality of rubber convex points are provided and are distributed at equal intervals.

[0012] Compared with the prior art, the anti-vibration pressure-equalizing ring provided by the present invention has at least the following beneficial effects:

[0013] The pressure-liquid component presses a certain amount of liquid into the expansion clamp component, causing the expansion clamp component to expand, and then the expansion clamp component is expanded and fixed tightly to the end, thereby realizing convenient installation of the pressure equalizing ring, solving the problem of cumbersome operation when installing and fixing conventional pressure equalizing rings, and effectively improving the assembly and disassembly efficiency of the pressure equalizing ring. In windy weather and other conditions, when the pressure equalizing ring is subjected to external force, the expansion clamp component and multiple rubber columns can buffer the external force, thereby reducing the damage to the pressure equalizing ring caused by the external force. The pressure equalizing ring will not loosen due to long-term vibration, avoiding the safety hazard caused by the falling off of the pressure equalizing ring due to loose bolts and nuts, improving the installation stability, and extending the service life of the pressure equalizing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall top view of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0017] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the figure: 1. expansion clamp assembly; 101. annular rubber block; 102. inner cavity; 103. rubber bump; 2. liquid pressure assembly; 201. external liquid cylinder; 202. piston plate; 203. nut sleeve; 204. threaded rod; 205. end plate; 3. lower ring; 4. connecting rod; 5. upper ring; 6. rubber column; 7. mounting sleeve; 8. connecting block. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the embodiments.

[0020] See also Figure 1-4 The utility model provides an anti-vibration pressure-equalizing ring, comprising a lower ring 3, an upper ring 5 is arranged above the lower ring 3, a connecting rod 4 is fixed between the lower ring 3 and the upper ring 5, a plurality of connecting rods 4 are provided and the plurality of connecting rods 4 are distributed in a ring shape, a mounting sleeve 7 connected to the upper ring 5 is provided at the center of the upper ring 5, an expansion clamp component 1 is provided inside the mounting sleeve 7, and a pressure liquid component 2 is provided outside the expansion clamp component 1; when the pressure-equalizing ring is placed on the rod-shaped end of a building for installation and use, the rod-shaped end is inserted into the interior of the expansion clamp component 1, and a certain amount of liquid is pressed into the interior of the expansion clamp component 1 through the pressure liquid component 2, thereby The expansion clamp assembly 1 is expanded, and is thereby fixed tightly to the end portion through the expansion clamp assembly 1, thereby realizing convenient installation of the pressure equalizing ring, solving the problem of cumbersome operation during installation and fixation of conventional pressure equalizing rings, effectively improving the assembly and disassembly efficiency of the pressure equalizing ring, and the pressure equalizing ring will not loosen due to long-term vibration, avoiding the safety hazard caused by the pressure equalizing ring falling off due to loose bolts and nuts. In windy weather and other conditions, when the pressure equalizing ring is subjected to external force, the expansion clamp assembly 1 provided can buffer the external force, thereby reducing the damage to the pressure equalizing ring caused by the external force, and extending the service life of the pressure equalizing ring.

[0021] Further as Figure 1 、 Figure 2 and Figure 4As shown, it is worth specifically explaining that the expansion clamp assembly 1 includes an annular rubber block 101 arranged inside the mounting sleeve 7 and fitly fixed on the inner side wall of the mounting sleeve 7, an inner cavity 102 is opened inside the annular rubber block 101, and the pressure liquid assembly 2 includes an external liquid cylinder 201 fixed on the outer side wall of the annular rubber block 101 and communicated with the inner cavity 102, a nut sleeve 203 is fixed in one end of the external liquid cylinder 201 away from the annular rubber block 101, a threaded rod 204 is connected to the inner thread of the nut sleeve 203, and a piston plate 202 that fits tightly with the inner side wall of the external liquid cylinder 201 is fixed on one end of the threaded rod 204 located inside the external liquid cylinder 201; specifically During work, the inner cavity 102 and the external fluid cylinder 201 are filled with a certain amount of liquid, the liquid can be water or hydraulic oil, etc., the rod-shaped end is inserted into the inside of the annular rubber block 101, and the threaded rod 204 is rotated. The threaded rod 204 drives the piston plate 202 to move in the external fluid cylinder 201, thereby squeezing the liquid inside the external fluid cylinder 201 into the inner cavity 102 inside the annular rubber block 101 by the piston plate 202, thereby making the annular rubber block 101 expand and be closely fixed on the end, thereby realizing the convenient installation of the pressure equalizing ring, solving the problem that the conventional pressure equalizing ring is complicated to operate when being installed and fixed, and effectively improving the assembly and disassembly efficiency of the pressure equalizing ring.

[0022] Further as Figure 1 、 Figure 2 and Figure 3 As shown, it is worth mentioning that a connecting block 8 is fixed on the inner wall of the upper ring 5, and a plurality of connecting blocks 8 are provided and distributed in a ring shape, and a rubber column 6 is fixed between the outer wall of the mounting sleeve 7 and the connecting block 8; during specific operation, the vibration is absorbed and buffered by the plurality of rubber columns 6, thereby further increasing the vibration reduction effect of the equalizing ring.

[0023] This solution has the following working process: when the pressure equalizing ring is placed at the rod-shaped end of a building for installation and use, the rod-shaped end is inserted into the interior of the annular rubber block 101, and the threaded rod 204 is rotated. The threaded rod 204 drives the piston plate 202 to move in the external liquid cylinder 201, so that the liquid inside the external liquid cylinder 201 is squeezed into the inner cavity 102 of the annular rubber block 101 through the piston plate 202, so that the annular rubber block 101 is expanded and tightly fixed to the end, thereby realizing convenient installation of the pressure equalizing ring, and absorbing and buffering the vibration of the pressure equalizing ring by the expanded annular rubber block 101 and multiple rubber columns 6.

[0024] Further as Figure 4As shown, it is worth noting that a terminal plate 205 is fixed on one end of the threaded rod 204 located outside the external liquid cylinder 201, and a plurality of convex ribs distributed in an annular shape are provided on the side of the terminal plate 205; during specific work, the threaded rod 204 is conveniently rotated by the terminal plate 205 provided, which is convenient for operation, and the friction force when rotating the terminal plate 205 is increased by the convex ribs provided.

[0025] Further as Figure 1 and Figure 2 As shown, it is worth mentioning that a rubber protrusion 103 is fixed on the inner side of the annular rubber block 101, and a plurality of rubber protrusions 103 are provided and the plurality of rubber protrusions 103 are equidistantly distributed; in specific operation, the expansion and clamping friction of the annular rubber block 101 is further increased by the provision of the plurality of rubber protrusions 103, thereby further improving the installation stability of the pressure equalizing ring.

[0026] In summary: a certain amount of liquid is pressed into the expansion clamp component 1 through the pressure liquid component 2, so that the expansion clamp component 1 expands, and is then fixed to the end by the expansion clamp component 1, thereby realizing convenient installation of the equalizing pressure ring, solving the problem of cumbersome operation during installation and fixation of conventional equalizing pressure rings, effectively improving the assembly and disassembly efficiency of the equalizing pressure ring, and the equalizing pressure ring will not loosen due to long-term vibration, avoiding the safety hazard caused by the equalizing pressure ring falling off due to loose bolts and nuts. In windy weather and other conditions, when the equalizing pressure ring is subjected to external force, the expansion clamp component 1 and multiple rubber columns 6 can cooperate to buffer the external force, thereby reducing the damage to the equalizing pressure ring caused by external force and extending the service life of the equalizing pressure ring.

Claims

1. An anti-vibration pressure-equalizing ring, comprising a lower ring (3), characterized in that: An upper ring (5) is provided above the lower ring (3), a connecting rod (4) is fixed between the lower ring (3) and the upper ring (5), a plurality of connecting rods (4) are provided and the plurality of connecting rods (4) are distributed in a ring shape, a mounting sleeve (7) connected to the upper ring (5) is provided at the center of the upper ring (5), an expansion clamp assembly (1) is provided inside the mounting sleeve (7), and a pressure liquid assembly (2) is provided outside the expansion clamp assembly (1).

2. The anti-vibration pressure-equalizing ring according to claim 1, characterized in that: The expansion clamp assembly (1) comprises an annular rubber block (101) disposed inside the mounting sleeve (7) and fixedly attached to the inner side wall of the mounting sleeve (7); an inner cavity (102) is provided inside the annular rubber block (101).

3. The anti-vibration pressure-equalizing ring according to claim 2, characterized in that: The liquid pressure component (2) comprises an external liquid cylinder (201) fixed on the outer side wall of the annular rubber block (101) and connected to the inner cavity (102); a nut sleeve (203) is fixed in one end of the external liquid cylinder (201) away from the annular rubber block (101); a threaded rod (204) is connected to the inner thread of the nut sleeve (203); and a piston plate (202) is fixed on one end of the threaded rod (204) located inside the external liquid cylinder (201) and tightly matched with the inner side wall of the external liquid cylinder (201).

4. The anti-vibration pressure-equalizing ring according to claim 3, characterized in that: An end plate (205) is fixed to one end of the threaded rod (204) located outside the external liquid cylinder (201), and a plurality of convex ribs distributed in an annular shape are provided on the side surface of the end plate (205).

5. The anti-vibration pressure-equalizing ring according to claim 1, characterized in that: A connecting block (8) is fixed on the inner side wall of the upper ring (5), and a plurality of connecting blocks (8) are provided and the plurality of connecting blocks (8) are distributed in an annular shape. A rubber column (6) is fixed between the outer side wall of the mounting sleeve (7) and the connecting block (8).

6. The anti-vibration pressure-equalizing ring according to claim 3, characterized in that: A rubber convex point (103) is fixed on the inner side surface of the annular rubber block (101), and a plurality of the rubber convex points (103) are provided, and the plurality of rubber convex points (103) are distributed at equal intervals.

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