Detachable cavity combined lightning protection device

Abstract

The utility model discloses a combined lightning protection device with a detachable cavity, which relates to the field of electrical engineering and comprises an insulator and intermediate electrodes, the intermediate electrodes are arranged in the insulator and enter a discharge chamber, the discharge chamber is formed between two adjacent intermediate electrodes, an outlet is arranged on the outer surface of the insulator, and the outlet is communicated with the insulator. In actual operation, the inserting barrels can move up and down in the inserting openings of the protruding heads, the inserting barrels can be inserted into the protruding heads, due to the fact that the protruding heads are arranged, the inserting barrels on the protruding heads can slide up and down, the inserting barrels can slide to the same height or slide to the high position, and the inserting barrels can be inserted into the protruding heads. The higher the protrusion is, the higher the difficulty of each discharge combination is.

Description

Technical Field

[0001] The utility model relates to the field of electrical engineering, in particular to a detachable cavity combined lightning protection device. Background Art

[0002] For example, a patent named Multi-cavity lightning arrester with protective electrodes (patent application number: CN201820309109.7) discloses a multi-cavity lightning arrester with protective electrodes. A plurality of protective electrodes are provided, and a protrusion can be provided at the outlet of the discharge cavity on the surface of the insulator to provide an obstacle between adjacent outputs of the discharge cavity so as to merge the separated discharges into one. The higher the protrusion, the more difficult it is to merge the discharges. However, the height of the protrusion is fixed. After the discharge, the protrusion is damaged and is not easy to replace. At the same time, the height of multiple protrusions is consistent, and the current at the same height is prone to cross-current.

[0003] Therefore, it is necessary to propose a detachable cavity combined lightning protection device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a detachable cavity combined lightning protection device to solve the problem that the height of the protrusion is fixed, and after discharge, the protrusion is damaged and difficult to replace; at the same time, the heights of multiple protrusions are consistent, and the current at the same height is prone to cross-current.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable cavity combined lightning protection device, comprising an insulator and an intermediate electrode, wherein the intermediate electrode is arranged in the insulator and enters a discharge chamber, wherein the discharge chamber is formed between two adjacent intermediate electrodes and has an outlet on the outer surface of the insulator, wherein the two ends of the insulator are respectively connected to a first end electrode and a second end electrode, wherein the first end electrode and the second end electrode are directly or through a spark gap connected to the intermediate electrode, wherein one or more protective electrodes connected to the first end electrode and the second end electrode and protruding from the insulator are arranged in the insulator, wherein a protruding head is arranged on the outer side of the protective electrode, wherein the protruding head is arranged in a cylindrical shape, wherein a socket is arranged between the inner wall and the outer wall of the protruding head, wherein a plug sleeve is inserted and connected in the socket.

[0006] Preferably, the top and bottom ends of the protruding head are penetrated, the top and bottom ends of the inserting tube are penetrated, and the bottom end of the protruding head is connected to the inside of the discharge chamber.

[0007] Preferably, a connection port is provided on a side of the first end electrode away from the insulator, and a fastening pin is provided in the inner thread of the connection port.

[0008] Preferably, a fixing ring is provided on the outer side of the connection port, a silicone ring is provided inside the fixing ring, the outer side of the fastening pin is attached to the inner side of the silicone ring, and one side of the fixing ring is fixed to the end of the first end electrode.

[0009] Preferably, an extension end is provided between the second end electrode and the insulator, the height of the extension end is less than the height of the insulator, the second end electrode and the insulator are of the same height, and the inside of the insulator is connected to the extension end.

[0010] Technical effects and advantages of the utility model:

[0011] 1. In the actual operation of the utility model, the insert tube can move up and down in the socket of the protruding head, and the insert tube can be inserted into the protruding head. Since multiple protruding heads are provided, the insert tube on each protruding head can slide up and down, and multiple insert tubes can be slid to the same height, or slid to a higher position. The higher the protrusion, the more difficult it is to merge the discharges.

[0012] 2. At the same time, the heights of multiple plug-ins can also be adjusted to different heights, so that there is a height difference between the two plug-ins, to avoid the currents being combined together when discharging at the same height. With staggered heights, discharge flashover can be reduced; and when the plug-in is damaged, the sliding connection method is also convenient for subsequent replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the detachable cavity combined lightning protection device of the utility model.

[0014] Figure 2 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0015] In the figure: 1. first end electrode; 2. fastening pin; 3. connecting port; 4. insulator; 5. extension end; 6. second end electrode; 7. protruding head; 8. fixing ring; 9. silicone ring; 10. insert sleeve. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1 - Figure 2A detachable cavity combined lightning protection device is shown, comprising an insulator 4 and an intermediate electrode, wherein the intermediate electrode is arranged in the insulator 4 and enters into a discharge chamber, wherein the discharge chamber is formed between two adjacent intermediate electrodes and has an outlet on the outer surface of the insulator 4, wherein the two ends of the insulator 4 are respectively connected with a first end electrode 1 and a second end electrode 6, wherein the first end electrode 1 and the second end electrode 6 are directly or via a spark gap connected to the intermediate electrode, wherein one or more protective electrodes connected to the first end electrode 1 and the second end electrode 6 and protruding from the insulator 4 are arranged in the insulator 4, wherein a protruding head 7 is arranged on the outer side of the protective electrode, wherein the protruding head 7 is arranged in a cylindrical shape, wherein a socket is arranged between the inner wall and the outer wall of the protruding head 7, wherein an insert 10 is inserted and connected into the socket.

[0018] The detachable cavity combined lightning protection device consists of an insulator 4 and an intermediate electrode (not shown in the figure) placed in the insulator 4. The insulator 4, the intermediate electrode, the first end electrode 1 and the second end electrode 6 are all common technical features, so they are not described in detail in the present utility model.

[0019] like Figure 1 As shown, the outlet of the discharge chamber on the surface of the insulator 4 may be provided with a protruding head 7 to provide a barrier between adjacent outputs of the discharge chamber so as to merge the separated discharges into one, and the output of the discharge chamber is mainly located at the center of the protruding head 7.

[0020] In the actual operation of the utility model, the insert 10 can move up and down in the socket of the protruding head 7, and the insert 10 can be inserted into the protruding head 7. Since a plurality of protruding heads 7 are provided, the insert 10 on each protruding head 7 can slide up and down, and the plurality of inserts 10 can be slid to the same height, or to a higher position. The higher such protrusions (i.e., the farther they protrude from the insulator 4), the more difficult it is for the individual discharges to merge (combine).

[0021] At the same time, the heights of the multiple inserts 10 can be adjusted to different heights, so that there is a height difference between the two inserts 10, so as to avoid the currents being combined together when they are at the same height during discharge. With staggered heights, discharge flashover can be reduced. (Similar to the role played by the sheds of different radii on the insulator). And when the insert 10 is damaged, the sliding connection method is also convenient for subsequent replacement.

[0022] At the same time, since the top and bottom ends of the protruding head 7 penetrate, the top and bottom ends of the insert sleeve 10 penetrate, and the bottom end of the protruding head 7 is connected to the inside of the discharge chamber, it will not affect the discharge of the protective electrode.

[0023] A connecting port 3 is provided on the side of the first end electrode 1 away from the insulator 4, and a fastening pin 2 is fitted into the internal thread of the connecting port 3. A fixing ring 8 is provided on the outer side of the connecting port 3, and a silicone ring 9 is provided inside the fixing ring 8. The outer side of the fastening pin 2 is attached to the inner side of the silicone ring 9, and one side of the fixing ring 8 is fixed to the end of the first end electrode 1.

[0024] In the actual operation of the utility model, the insulator 4 can be fixed to the object on which the arrester is installed by the fastening pin 2. At the same time, the fastening pin 2 can also be removed from the first end electrode 1 to replace the fastening pin 2 of different lengths, which is convenient for installation and use.

[0025] An extension end 5 is provided between the second end electrode 6 and the insulator 4. The height of the extension end 5 is less than that of the insulator 4. The second end electrode 6 and the insulator 4 are of the same height. The interior of the insulator 4 is connected to the extension end 5. The extension end 5 is used to extend the length.

Claims

1. A detachable cavity combined lightning protection device, comprising an insulator (4) and an intermediate electrode, characterized in that: The intermediate electrode is arranged in the insulator (4) and enters the discharge chamber, the discharge chamber is formed between two adjacent intermediate electrodes and has an outlet on the outer surface of the insulator (4), the two ends of the insulator (4) are respectively connected to a first end electrode (1) and a second end electrode (6), the first end electrode (1) and the second end electrode (6) are directly or through a spark gap connected to the intermediate electrode, the insulator (4) is provided with one or more protective electrodes connected to the first end electrode (1) and the second end electrode (6) and protruding from the insulator (4), the outer side of the protective electrode is provided with a protruding head (7), the protruding head (7) is arranged in a cylindrical shape, a socket is provided between the inner wall and the outer wall of the protruding head (7), and a plug (10) is inserted and connected in the socket.

2. A detachable cavity combined lightning protection device according to claim 1, characterized in that: The top and bottom ends of the protruding head (7) are penetrated, the top and bottom ends of the inserting tube (10) are penetrated, and the bottom end of the protruding head (7) is connected to the inside of the discharge chamber.

3. The detachable cavity combined lightning protection device according to claim 1 is characterized in that: A connection port (3) is provided on a side of the first end electrode (1) away from the insulator (4), and a fastening pin (2) is fitted into the internal thread of the connection port (3).

4. A detachable cavity combined lightning protection device according to claim 3, characterized in that: A fixing ring (8) is arranged on the outside of the connection port (3), a silicone ring (9) is arranged inside the fixing ring (8), the outside of the fastening pin (2) is attached to the inside of the silicone ring (9), and one side of the fixing ring (8) is fixed to the end of the first end electrode (1).

5. The detachable cavity combined lightning protection device according to claim 1 is characterized in that: An extended end (5) is provided between the second end electrode (6) and the insulator (4); the height of the extended end (5) is less than the height of the insulator (4); the second end electrode (6) and the insulator (4) are of the same height; and the interior of the insulator (4) is connected to the extended end (5).

Images