Lightning arrester with protection structure

Abstract

The utility model relates to the technical field of high-voltage transmission lines, in particular to a lightning arrester with a protection structure, which comprises a lightning arrester component, a protection component is mounted at the top of the lightning arrester component, and a first explosion-proof component and a second explosion-proof component are mounted at the bottom of the lightning arrester component. The lightning arrester assembly comprises a lightning arrester body, a first wiring terminal is installed at the top of the lightning arrester body, an installation cross arm is installed on the outer wall of the bottom of the lightning arrester body, a disconnector is installed at the bottom of the lightning arrester body, and a second wiring terminal is installed at the bottom of the disconnector. According to the improved lightning arrester, the protection assembly is adopted, so that the situation that when the lightning arrester is used, water and dust are accumulated at the joint of the first wiring terminal and the lightning arrester body, and use of the lightning arrester is affected can be prevented; and the first explosion-proof assembly and the second explosion-proof assembly are adopted, so that when the lightning arrester is used, fragments generated by explosion of the disconnector can be prevented from hurting surrounding people and equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage power transmission lines, in particular to a lightning arrester with a protection structure. Background Art

[0002] High-voltage transmission lines refer to lines that transmit electricity at a transmission voltage of less than 220 kV. High-voltage transmission lines are mainly composed of transmission towers, transmission wires, insulators and transmission transformers.

[0003] The function of a lightning arrester is to protect various electrical equipment in the power system from damage caused by lightning overvoltage, operating overvoltage, and power frequency transient overvoltage. When in use, the lightning arrester is installed near the protected equipment and connected in parallel with the protected equipment. Under normal circumstances, the lightning arrester is not conductive. When the voltage acting on the lightning arrester reaches the operating voltage of the lightning arrester, the lightning arrester is conductive, passes a large current, releases the overvoltage energy and limits the overvoltage to a certain level, thereby protecting the insulation of the equipment.

[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. When the existing ordinary lightning arrester is in use, rainwater and dust may accumulate at the connection between the wiring terminal and the lightning arrester, and dust may enter the interior of the lightning arrester and damage the lightning arrester; 2. When the existing ordinary lightning arrester is in use, when the disconnector on the lightning arrester explodes, the explosion fragments may cause harm to surrounding people or equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a lightning arrester with a protective structure to solve the problem in the above background technology that there is no protective structure at the connection between the existing ordinary lightning arrester terminal and the lightning arrester, and the explosion of the disconnector of the ordinary lightning arrester may harm the surrounding people or equipment. To achieve the above purpose, the utility model provides the following technical solution: the lightning arrester with a protective structure includes a lightning arrester assembly, the top of the lightning arrester assembly is equipped with a protective assembly, and the bottom of the lightning arrester assembly is equipped with a first explosion-proof assembly and a second explosion-proof assembly.

[0006] The arrester assembly comprises an arrester body, a first terminal is mounted on the top of the arrester body, a mounting cross arm is mounted on the bottom outer wall of the arrester body, a disconnector is mounted on the bottom of the arrester body, and a second terminal is mounted on the bottom of the disconnector.

[0007] The protective assembly includes a first arc-shaped insulating rubber block that is in contact with the outer wall of the first terminal, a first protective cover is installed at the bottom of the first arc-shaped insulating rubber block, a first arc-shaped insulating rubber strip is installed at the bottom of the first protective cover, a first mounting block is installed at the front end of the first protective cover, a hinge is installed at the rear end of the first protective cover, a second protective cover is installed at the front end of the hinge, a second arc-shaped insulating rubber block is installed at the top of the second protective cover, a second arc-shaped insulating rubber strip is installed at the bottom of the second protective cover, and a second mounting block is installed at the front end of the second protective cover.

[0008] The first explosion-proof component includes a third arc-shaped insulating rubber block that is attached to one side of the outer wall of the second terminal, a first mounting plate is installed on one side of the third arc-shaped insulating rubber block, a first small arc-shaped plate and a first large arc-shaped plate are installed on the top of the first mounting plate in sequence from inside to outside, and a fixing block and a third mounting block are installed on the front end of the first large arc-shaped plate in sequence from top to bottom.

[0009] The second explosion-proof component includes a fourth arc-shaped insulating rubber block that is in contact with the other side of the outer wall of the second terminal block, a second mounting plate is installed on one side of the fourth arc-shaped insulating rubber block, a second small arc-shaped plate and a second large arc-shaped plate are installed on the top of the second mounting plate from the inside to the outside, a connecting block and a fourth mounting block are installed on the front end of the second large arc-shaped plate from top to bottom, and a plug rod is installed on one side of the connecting block.

[0010] Further preferably, the first protective cover and the second protective cover form a sealing structure with the first connecting terminal through the first arc-shaped insulating rubber block and the second arc-shaped insulating rubber block.

[0011] Further preferably, the first protective cover and the second protective cover form a sealing structure with the arrester body through the first arc-shaped insulating rubber strip and the second arc-shaped insulating rubber strip.

[0012] Further preferably, the first protective cover and the second protective cover are made of transparent PVC insulating plastic.

[0013] Further preferably, the outer walls of the first small arc plate, the first large arc plate, the second small arc plate and the second large arc plate are all provided with a plurality of through holes, and the outer wall through holes of the first small arc plate are staggered with the outer wall through holes of the first large arc plate, and the outer wall through holes of the second small arc plate are staggered with the outer wall through holes of the second large arc plate.

[0014] Further preferably, the fixing block and the third mounting block are symmetrically distributed about the horizontal center line of the first large arc plate, and the connecting block, the fourth mounting block and the insertion rod are symmetrically distributed about the horizontal center line of the second large arc plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, through the protective component, the first arc-shaped insulating rubber block and the second arc-shaped insulating rubber block can prevent external rainwater and dust from entering the first protective cover and the second protective cover through the gap between the first wiring terminal and the first protective cover and the second protective cover, and the first arc-shaped insulating rubber strip and the second arc-shaped insulating rubber strip can prevent external rainwater and dust from entering the first protective cover and the second protective cover through the gap between the lightning arrester body and the first protective cover and the second protective cover, thereby avoiding water and dust accumulation at the connection between the first wiring terminal and the lightning arrester body, and protecting the lightning arrester body.

[0017] In the utility model, through the first explosion-proof component and the second explosion-proof component, when the disconnector explodes, the first small arc plate, the first large arc plate, the second small arc plate and the second large arc plate can block the fragments produced by the explosion of the disconnector, thereby preventing the fragments produced by the explosion of the disconnector from harming surrounding people and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the lightning arrester assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the protective component of the utility model;

[0021] Figure 4 This is a rear view structural diagram of the protective assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the first explosion-proof component of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the second explosion-proof component of the utility model.

[0024] In the figure: 1. Arrester assembly; 101. Arrester body; 102. First terminal; 103. Mounting cross arm; 104. Disconnector; 105. Second terminal; 2. Protection assembly; 201. First arc-shaped insulating rubber block; 202. First protective cover; 203. First arc-shaped insulating rubber strip; 204. First mounting block; 205. Hinge; 206. Second protective cover; 207. Second arc-shaped insulating rubber block; 208. Second arc-shaped insulating rubber strip; 2 09, second mounting block; 3, first explosion-proof assembly; 301, third arc-shaped insulating rubber block; 302, first mounting plate; 303, first small arc-shaped plate; 304, first large arc-shaped plate; 305, fixing block; 306, third mounting block; 4, second explosion-proof assembly; 401, fourth arc-shaped insulating rubber block; 402, second mounting plate; 403, second small arc-shaped plate; 404, second large arc-shaped plate; 405, connecting block; 406, fourth mounting block; 407, plug rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 6 The utility model provides a technical solution: a lightning arrester with a protective structure, including a lightning arrester component 1, a protective component 2 is installed on the top of the lightning arrester component 1, and a first explosion-proof component 3 and a second explosion-proof component 4 are installed on the bottom of the lightning arrester component 1.

[0027] The arrester assembly 1 includes an arrester body 101 , a first terminal 102 is mounted on the top of the arrester body 101 , a mounting cross arm 103 is mounted on the bottom outer wall of the arrester body 101 , a disconnector 104 is mounted on the bottom of the arrester body 101 , and a second terminal 105 is mounted on the bottom of the disconnector 104 .

[0028] The protective component 2 includes a first arc-shaped insulating rubber block 201 that is in contact with the outer wall of the first terminal 102, a first protective cover 202 is installed at the bottom of the first arc-shaped insulating rubber block 201, a first arc-shaped insulating rubber strip 203 is installed at the bottom of the first protective cover 202, a first mounting block 204 is installed at the front end of the first protective cover 202, a hinge 205 is installed at the rear end of the first protective cover 202, a second protective cover 206 is installed at the front end of the hinge 205, a second arc-shaped insulating rubber block 207 is installed at the top of the second protective cover 206, a second arc-shaped insulating rubber strip 208 is installed at the bottom of the second protective cover 206, and a second mounting block 209 is installed at the front end of the second protective cover 206.

[0029] The first explosion-proof component 3 includes a third arc-shaped insulating rubber block 301 that is attached to one side of the outer wall of the second terminal block 105. A first mounting plate 302 is installed on one side of the third arc-shaped insulating rubber block 301. A first small arc-shaped plate 303 and a first large arc-shaped plate 304 are installed on the top of the first mounting plate 302 in sequence from inside to outside. A fixing block 305 and a third mounting block 306 are installed on the front end of the first large arc-shaped plate 304 in sequence from top to bottom.

[0030] The second explosion-proof component 4 includes a fourth arc-shaped insulating rubber block 401 that is in contact with the other side of the outer wall of the second terminal block 105. A second mounting plate 402 is installed on one side of the fourth arc-shaped insulating rubber block 401. A second small arc-shaped plate 403 and a second large arc-shaped plate 404 are installed on the top of the second mounting plate 402 from the inside to the outside. A connecting block 405 and a fourth mounting block 406 are installed on the front end of the second large arc-shaped plate 404 from top to bottom. A plug rod 407 is installed on one side of the connecting block 405.

[0031] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first protective cover 202 and the second protective cover 206 form a sealing structure with the first terminal 102 through the first arc-shaped insulating rubber block 201 and the second arc-shaped insulating rubber block 207; it can prevent external rainwater and dust from entering the first protective cover 202 and the second protective cover 206 through the gap between the first terminal 102 and the first protective cover 202 and the second protective cover 206, and avoid water and dust accumulation at the connection between the first terminal 102 and the arrester body 101, which affects the safety of the arrester.

[0032] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the first protective cover 202 and the second protective cover 206 form a sealing structure with the arrester body 101 through the first arc-shaped insulating rubber strip 203 and the second arc-shaped insulating rubber strip 208; it can prevent external rainwater and dust from entering the first protective cover 202 and the second protective cover 206 through the gap between the arrester body 101 and the first protective cover 202 and the second protective cover 206, and avoid water and dust accumulation at the connection between the first terminal 102 and the arrester body 101, which affects the safety of the arrester.

[0033] In this embodiment, Figure 3 and Figure 4 As shown, the first protective cover 202 and the second protective cover 206 are made of transparent PVC insulating plastic; the first protective cover 202 and the second protective cover 206 can play a protective role, and the working condition of the connection between the first terminal 102 and the arrester body 101 can be observed through the first protective cover 202 and the second protective cover 206.

[0034] In this embodiment, Figure 5 and Figure 6 As shown, the outer walls of the first small arc plate 303, the first large arc plate 304, the second small arc plate 403 and the second large arc plate 404 are all provided with a plurality of through holes, and the outer wall through holes of the first small arc plate 303 and the outer wall through holes of the first large arc plate 304 are staggered with each other, and the outer wall through holes of the second small arc plate 403 and the outer wall through holes of the second large arc plate 404 are staggered with each other; the first small arc plate 303, the first large arc plate 304, the second small arc plate 403 and the second large arc plate 404 can protect the detacher 104. When the detacher 104 explodes, the first small arc plate 303, the first large arc plate 304, the second small arc plate 403 and the second large arc plate 404 can prevent the fragments generated by the explosion of the detacher 104 from harming the surrounding people and equipment, and the through holes can discharge the air pressure generated by the explosion.

[0035] In this embodiment, Figure 5 and Figure 6 As shown, the fixed block 305 and the third mounting block 306 are symmetrically distributed about the horizontal center line of the first large arc plate 304, and the connecting block 405, the fourth mounting block 406 and the plug rod 407 are symmetrically distributed about the horizontal center line of the second large arc plate 404; the plug rod 407 is inserted into the socket of the fixed block 305, and the third mounting block 306 and the fourth mounting block 406 are connected and fixed by screws, so that the first explosion-proof component 3 and the second explosion-proof component 4 can be connected and fixed, which is convenient for installing and disassembling the first explosion-proof component 3 and the second explosion-proof component 4. When the disconnector 104 explodes, the first explosion-proof component 3 and the second explosion-proof component 4 can be disassembled to clean up the explosion fragments.

[0036] The use method and advantages of the utility model: When the lightning arrester with a protective structure is used, the working process is as follows:

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, firstly, the first protective cover 202 and the second protective cover 206 are clamped and installed on the first wiring terminal 102, and the first mounting block 204 and the second mounting block 209 are connected and installed by screws. The first arc-shaped insulating rubber block 201 and the second arc-shaped insulating rubber block 207 can prevent external rainwater and dust from entering the first protective cover 202 and the second protective cover 206 through the gap between the first wiring terminal 102 and the first protective cover 202 and the second protective cover 206. The first arc-shaped insulating rubber strip 203 and the second arc-shaped insulating rubber strip 208 can prevent external rainwater and dust from entering the first protective cover 202 and the second protective cover 206. Enter the first protective cover 202 and the second protective cover 206 through the gap between the lightning arrester body 101 and the first protective cover 202 and the second protective cover 206 to avoid water and dust accumulation at the connection between the first terminal 102 and the lightning arrester body 101, then insert the four sets of rods 407 into the corresponding jacks of the fixing blocks 305, then connect and fix the third mounting block 306 and the fourth mounting block 406 with screws, and connect and fix the first explosion-proof component 3 and the second explosion-proof component 4. The first explosion-proof component 3 and the second explosion-proof component 4 can block the fragments produced by the explosion of the disconnector 104.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A lightning arrester with a protective structure, comprising a lightning arrester assembly (1), characterized in that: A protection component (2) is installed on the top of the lightning arrester component (1), and a first explosion-proof component (3) and a second explosion-proof component (4) are installed on the bottom of the lightning arrester component (1); The arrester assembly (1) comprises an arrester body (101), a first wiring terminal (102) is installed on the top of the arrester body (101), a mounting cross arm (103) is installed on the bottom outer wall of the arrester body (101), a disconnector (104) is installed on the bottom of the arrester body (101), and a second wiring terminal (105) is installed on the bottom of the disconnector (104); The protective component (2) comprises a first arc-shaped insulating rubber block (201) fitted with an outer wall of the first connecting terminal (102); a first protective cover (202) is installed at the bottom of the first arc-shaped insulating rubber block (201); a first arc-shaped insulating rubber strip (203) is installed at the bottom of the first protective cover (202); a first mounting block (204) is installed at the front end of the first protective cover (202); a hinge (205) is installed at the rear end of the first protective cover (202); a second protective cover (206) is installed at the front end of the hinge (205); a second arc-shaped insulating rubber block (207) is installed at the top of the second protective cover (206); a second arc-shaped insulating rubber strip (208) is installed at the bottom of the second protective cover (206); and a second mounting block (209) is installed at the front end of the second protective cover (206); The first explosion-proof component (3) comprises a third arc-shaped insulating rubber block (301) which is fitted to one side of the outer wall of the second wiring terminal (105); a first mounting plate (302) is installed on one side of the third arc-shaped insulating rubber block (301); a first small arc-shaped plate (303) and a first large arc-shaped plate (304) are installed on the top of the first mounting plate (302) in sequence from inside to outside; and a fixing block (305) and a third mounting block (306) are installed on the front end of the first large arc-shaped plate (304) in sequence from top to bottom; The second explosion-proof component (4) comprises a fourth arc-shaped insulating rubber block (401) which is in contact with the other side of the outer wall of the second connecting terminal (105); a second mounting plate (402) is installed on one side of the fourth arc-shaped insulating rubber block (401); a second small arc-shaped plate (403) and a second large arc-shaped plate (404) are installed on the top of the second mounting plate (402) in sequence from inside to outside; a connecting block (405) and a fourth mounting block (406) are installed on the front end of the second large arc-shaped plate (404) in sequence from top to bottom; and a plug rod (407) is installed on one side of the connecting block (405).

2. The lightning arrester with a protective structure according to claim 1, characterized in that: The first protective cover (202) and the second protective cover (206) form a sealing structure with the first connecting terminal (102) through the first arc-shaped insulating rubber block (201) and the second arc-shaped insulating rubber block (207).

3. The lightning arrester with a protective structure according to claim 1, characterized in that: The first protective cover (202) and the second protective cover (206) form a sealing structure with the arrester body (101) through the first arc-shaped insulating rubber strip (203) and the second arc-shaped insulating rubber strip (208).

4. The lightning arrester with a protective structure according to claim 1, characterized in that: The first protective cover (202) and the second protective cover (206) are made of transparent PVC insulating plastic.

5. The lightning arrester with a protective structure according to claim 1, characterized in that: The outer walls of the first small arc plate (303), the first large arc plate (304), the second small arc plate (403) and the second large arc plate (404) are all provided with a plurality of through holes, and the outer wall through holes of the first small arc plate (303) and the outer wall through holes of the first large arc plate (304) are interlaced with each other, and the outer wall through holes of the second small arc plate (403) and the outer wall through holes of the second large arc plate (404) are interlaced with each other.

6. The lightning arrester with a protective structure according to claim 1, characterized in that: The fixing block (305) and the third mounting block (306) are symmetrically arranged about the horizontal center line of the first large arc plate (304), and the connecting block (405), the fourth mounting block (406) and the insertion rod (407) are symmetrically arranged about the horizontal center line of the second large arc plate (404).

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