Lightning arrester with monitoring and sealing functions

Abstract

The utility model relates to the technical field of lightning arrester monitoring equipment, and discloses a lightning arrester with monitoring and sealing functions, which comprises a shell, the inner wall of the shell is in threaded connection with a gas pipe, the outer wall of the gas pipe is fixedly provided with a gas cylinder, the outer wall of the gas cylinder is fixedly provided with a gas pressure dial plate, and the outer wall of the gas pipe is sleeved with a sealing ring. According to the lightning arrester with the monitoring and sealing functions, the gas pipe is rotated through external force, so that the gas pipe drives the gas cylinder to be in threaded connection with the inner wall of the shell, and when one end of the ejector pin enters the inner wall of the shell, the ejector pin abuts against the rheostat and bears pressure to puncture the plastic film, so that gas on the inner wall of the gas cylinder is mixed with gas on the inner wall of the shell; the air pressure data of the air cylinder can be known through the air pressure dial plate, when the air in the inner wall of the air cylinder is constant, the inner wall of the shell has a sealing effect, when the air pressure of the inner wall of the air cylinder is disordered, the inner wall of the shell has the possibility of leakage, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arrester monitoring equipment, in particular to a lightning arrester with monitoring and sealing functions. Background Technique

[0002] A lightning arrester is an electrical appliance used to protect electrical equipment from high transient overvoltages and limit the follow - current time and often the follow - current amplitude.

[0003] In the long - term operation of the existing lightning arrester with monitoring and sealing functions, due to the decline of the sealing performance, the inside of the lightning arrester may get damp. After the internal resistor chips get damp, the leakage current increases. The resistive current component in the leakage current causes the temperature of the resistor chips to rise. In severe cases, it will lead to the damage or explosion of the lightning arrester. At the same time, the device is not provided with a protection structure, resulting in the interface between the insulating housing and the device being damaged easily by wind and sun when the device is used outdoors for a long time, reducing the service life of the device. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the utility model provides a lightning arrester with monitoring and sealing functions, which has the advantages of monitoring the sealing performance and protection performance, and solves the problems raised in the above - mentioned background technique.

[0005] The utility model provides the following technical scheme: A lightning arrester with monitoring and sealing functions includes a housing. The inner wall of the housing is threadedly connected with an air pipe. An air cylinder is fixedly installed on the outer wall of the air pipe. A pressure dial is fixedly installed on the outer wall of the air cylinder. A sealing ring is sleeved on the outer wall of the air pipe. A thimble is arranged on the outer wall of the air pipe far from the air cylinder. A fixing block is fixedly installed on the top of the housing. A spring is fixedly installed on the outer wall of the fixing block. One end of the spring is fixedly installed with a protective shell. A clamping groove is fixedly arranged on the inner wall of the protective shell. A clamping block is clamped in the inner wall of the clamping groove.

[0006] As a preferred technical scheme of the utility model: A rheostat is arranged at the bottom of the fixing block. A fiberglass strip is clamped on the outer wall of the fixing block. A resin - reinforced rope is sleeved on the outer wall of the fiberglass strip.

[0007] As a preferred technical scheme of the utility model: The inner wall of the clamping groove is adapted to the outer wall of the clamping block, and the clamping groove and the clamping block are arc - shaped.

[0008] As a preferred technical scheme of the utility model: One end of the spring is fixed to the inner wall of the top of the protective shell, and the other end of the spring is fixed to the top of the fixing block.

[0009] As a preferred technical scheme of the utility model: The inner wall of the air cylinder is filled with gas. A plastic film is fixedly installed on the inner wall of the air pipe. The inner wall of the air pipe and the outer wall of the thimble form a sliding socket.

[0010] As a preferred technical solution of the present utility model: the number of the protective cases is two, and the two protective cases are located at the top and bottom of the fiberglass strip.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] 1. For the lightning arrester with monitoring and sealing functions, by rotating the air pipe externally, the air pipe drives the gas cylinder to form a threaded connection with the inner wall of the housing. When one end of the thimble enters the inner wall of the housing, the thimble abuts against the rheostat and punctures the plastic film under pressure, so that the gas inside the gas cylinder is mixed with the gas inside the housing wall. The air pressure data of the gas cylinder can be understood through the air pressure dial. When the gas inside the gas cylinder is constant, the inner wall of the housing has a sealing effect. When the air pressure inside the gas cylinder is disordered, it indicates that there may be a leak in the inner wall of the housing, improving the practicality of the equipment.

[0013] 2. For the lightning arrester with monitoring and sealing functions, the protective case compresses the spring. Rotating the protective case drives the card slot, so that the card slot and the card block form a clamping connection to achieve rapid installation, increasing the protection of the equipment. By rotating the protective case externally, the spring releases its elastic force, and the card block disengages from the inner wall of the card slot, achieving rapid disassembly, facilitating personnel to repair and check it, saving time and effort, and enabling the protective case to protect the interface gap between the fixed block and the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 It is a structural schematic diagram of the card block of the present utility model;

[0016] Figure 3 It is a structural schematic diagram of the spring of the present utility model;

[0017] Figure 4 It is a structural schematic diagram of the thimble of the present utility model;

[0018] Figure 5 It is a structural schematic diagram of the gas cylinder of the present utility model.

[0019] In the figure: 1. Housing; 2. Protective case; 3. Gas cylinder; 4. Air pressure dial; 5. Air pipe; 6. Sealing ring; 7. Card slot; 8. Card block; 9. Spring; 10. Thimble; 11. Resin reinforced rope; 12. Fiberglass strip; 13. Rheostat; 14. Fixed block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 - Figure 5 , a lightning arrester with a monitoring and sealing function, including a housing 1. The inner wall of the housing 1 is threadedly connected with an air pipe 5. An air cylinder 3 is fixedly installed on the outer wall of the air pipe 5. A pressure dial 4 is fixedly installed on the outer wall of the air cylinder 3. A sealing ring 6 is sleeved on the outer wall of the air pipe 5. A thimble 10 is provided on the outer wall of the air pipe 5 away from the air cylinder 3. A fixing block 14 is fixedly installed on the top of the housing 1. A spring 9 is fixedly installed on the outer wall of the fixing block 14. One end of the spring 9 is fixedly installed with a protective shell 2. A clamping groove 7 is fixedly provided on the inner wall of the protective shell 2. A clamping block 8 is clamped in the inner wall of the clamping groove 7.

[0022] In the above structure, by installing the housing 1, the insulation effect is increased when the device conducts lightning protection through the housing 1, improving the safety of the device.

[0023] In a preferred embodiment: a variable resistor 13 is provided at the bottom of the fixing block 14. A glass fiber strip 12 is clamped on the outer wall of the fixing block 14. A resin reinforced rope 11 is sleeved on the outer wall of the glass fiber strip 12.

[0024] In the above structure, by the fitting between the fixing block 14 and the variable resistor 13, the variable resistor 13 can transfer kilovolt surges. By sleeving the resin reinforced rope 11 on the outer wall of the glass fiber strip 12, the resin reinforced rope 11 is wound around the outer wall of the glass fiber strip 12 to increase the strength. There are gaps between the windings, which is conducive to the overflow of sparks and smoke generated during power overload, avoiding danger in the use of the device.

[0025] In a preferred embodiment: the inner wall of the clamping groove 7 is adapted to the outer wall of the clamping block 8, and the clamping groove 7 and the clamping block 8 are arc-shaped.

[0026] In the above structure, by the fitting between the inner wall of the clamping groove 7 and the outer wall of the clamping block 8, by rotating the protective shell 2 with an external force, the protective shell 2 drives the clamping groove 7 and the clamping block 8 to form a clamping connection, so that the protective shell 2 protects the interface gap between the fixing block 14 and the housing 1, avoiding poor sealing effect at the interface between the housing 1 and the fixing block 14 during long-term outdoor use of the device, and reducing the insulation and compressive resistance effect.

[0027] In a preferred embodiment: one end of the spring 9 is fixed to the inner wall of the top of the protective shell 2, and the other end of the spring 9 is fixed to the top of the fixing block 14.

[0028] In the above structure, the protective shell 2 is installed by an external force, and the spring 9 is compressed by the protective shell 2. Rotating the protective shell 2 drives the card slot 7, so that the card slot 7 is engaged with the card block 8 to achieve rapid installation and increase the protection of the device. By rotating the protective shell 2 with an external force, the spring 9 releases its elastic force, and the card block 8 disengages from the inner wall of the card slot 7 to achieve rapid disassembly, facilitating personnel to inspect and view it, saving time and effort.

[0029] In a preferred embodiment: The inner wall of the gas cylinder 3 is filled with gas, a plastic film is fixedly installed on the inner wall of the air pipe 5, and the inner wall of the air pipe 5 forms a sliding socket with the outer wall of the thimble 10.

[0030] In the above structure, by rotating the air pipe 5 with an external force, the air pipe 5 drives the gas cylinder 3 to form a threaded connection with the inner wall of the housing 1. When one end of the thimble 10 enters the inner wall of the housing 1, the thimble 10 pierces the plastic film under pressure by abutting against the rheostat 13. The sealing ring 6 is used to seal the connection to avoid leakage, so that the gas in the inner wall of the gas cylinder 3 is mixed with the gas in the inner wall of the housing 1. The air pressure data of the gas cylinder 3 can be understood through the air pressure dial 4. When the gas in the inner wall of the gas cylinder 3 is constant, the inner wall of the housing 1 has a sealing effect. When the air pressure in the inner wall of the gas cylinder 3 is disordered, it indicates that there is a possibility of leakage in the inner wall of the housing 1, improving the practicality of the device.

[0031] In a preferred embodiment: The number of the protective shells 2 is two, and the two protective shells 2 are located at the top and bottom of the fiberglass strip 12.

[0032] In the above structure, with the two protective shells 2 located at the top and bottom of the fiberglass strip 12, the protective shells 2 can provide comprehensive protection between the housing 1 and the fixing block 14, extending the service life of the device.

[0033] Working principle: Installing the device on the wire or the distribution box can protect the device from lightning. The device monitors the magnitude of the current. By applying external force to install the protective shell 2, the spring 9 is compressed by the protective shell 2. Rotating the protective shell 2 drives the card slot 7, so that the card slot 7 is engaged with the card block 8 to achieve rapid installation and increase the protection of the device. By applying external force to rotate the protective shell 2, the spring 9 releases its elastic force, and the card block 8 disengages from the inner wall of the card slot 7 to achieve rapid disassembly, which is convenient for personnel to repair and check, saving time and effort. The protective shell 2 protects the interface gap between the fixed block 14 and the housing 1. By applying external force to rotate the air pipe 5, the air pipe 5 drives the gas cylinder 3 to be threadedly connected to the inner wall of the housing 1. When one end of the thimble 10 enters the inner wall of the housing 1, the thimble 10 pierces the plastic film by pressing against the rheostat 13, so that the gas inside the gas cylinder 3 is mixed with the gas inside the inner wall of the housing 1. The air pressure data of the gas cylinder 3 can be understood through the air pressure dial 4. When the gas inside the gas cylinder 3 is constant, the inner wall of the housing 1 has a sealing effect. When the air pressure inside the gas cylinder 3 is disordered, it means that there is a possibility of leakage in the inner wall of the housing 1, improving the practicability of the device.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning arrester with a monitoring and sealing function, comprising a housing (1), characterized in that: The inner wall of the shell (1) is threadedly connected with an air pipe (5), the outer wall of the air pipe (5) is fixedly mounted with a gas cylinder (3), the outer wall of the gas cylinder (3) is fixedly mounted with an air pressure dial (4), the outer wall of the air pipe (5) is sleeved with a sealing ring (6), the outer wall of the air pipe (5) away from the gas cylinder (3) is provided with a thimble (10), the top of the shell (1) is fixedly mounted with a fixing block (14), the outer wall of the fixing block (14) is fixedly mounted with a spring (9), one end of the spring (9) is fixedly mounted with a protective shell (2), the inner wall of the protective shell (2) is fixedly provided with a slot (7), and the inner wall of the slot (7) is clamped with a fixing block (8).

2. The arrester with monitoring and sealing function according to claim 1, characterized in that: A rheostat (13) is provided at the bottom of the fixing block (14), a glass fiber strip (12) is clamped on the outer wall of the fixing block (14), and a resin reinforcement rope (11) is sleeved on the outer wall of the glass fiber strip (12).

3. The arrester with monitoring and sealing function according to claim 2, characterized in that: The inner wall of the clamping slot (7) is matched with the outer wall of the clamping block (8), and the clamping slot (7) and the clamping block (8) are in an arc shape.

4. The arrester with monitoring and sealing function according to claim 1, characterized in that: One end of the spring (9) is fixed to the top inner wall of the protective shell (2), and the other end of the spring (9) is fixed to the top of the fixing block (14).

5. The arrester with monitoring and sealing function according to claim 4, characterized in that: The inner wall of the gas cylinder (3) is filled with gas, the inner wall of the gas pipe (5) is fixedly mounted with a plastic film, and the inner wall of the gas pipe (5) forms a sliding sleeve connection with the outer wall of the ejector pin (10).

6. The arrester with monitoring and sealing function according to claim 1, characterized in that: The number of the protective shells (2) is two, and the two protective shells (2) are located at the top and bottom of the glass fiber strip (12).

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