High-efficiency explosion-proof shielding type cable joint rear-plug lightning arrester

Abstract

The utility model discloses an efficient explosion-proof shielding type cable joint rear plug lightning arrester, which relates to the technical field of lightning arresters and comprises an outer shielding layer, a cable is arranged on one side of the outer shielding layer, connecting pieces are arranged at the upper end and the lower end of the cable respectively, and anti-skid pieces are arranged on the inner surfaces of the connecting pieces. First connecting plates are arranged at the front ends and the rear ends of the two connecting pieces correspondingly, first bolts used for fixing the two first connecting plates are arranged at the upper ends of the first connecting plates, fixing plates are arranged at one ends of the connecting pieces, empty grooves are formed in the fixing plates, and multiple sets of first springs are arranged in the empty grooves. A limiting plate is arranged at the upper end of the first spring, and a clamping block is arranged at the upper end of the limiting plate. According to the high-efficiency explosion-proof shielding type cable joint rear-inserted lightning arrester, the lightning arrester and the rear end of the cable can be conveniently and rapidly connected in a dismounting manner, and meanwhile, a grounding wire can be stably connected with the zinc oxide electrode, so that the cable is effectively protected from being damaged by lightning stroke.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arresters, in particular to a high-efficiency explosion-proof shielded cable joint rear-insertion lightning arrester. Background Art

[0002] In modern power systems and industrial automation control, cables are widely used to transmit electrical energy, signals, and various data. However, cable lines face many threats during operation, among which lightning overvoltage is one of the most serious risk factors.

[0003] Traditional lightning arresters can protect against lightning overvoltage to a certain extent, but they have many limitations. The installation of ordinary lightning arresters at cable joints is often complicated, requiring a large number of cable modifications and connection operations, which increases the construction difficulty and cost. In addition, during long-term operation, their protection performance is easily affected by problems such as loose connections, which has a certain adverse effect on people's use. In order to solve the shortcomings of the existing technology, we propose a high-efficiency explosion-proof shielded cable joint rear-insertion lightning arrester. Utility Model Content

[0004] The main purpose of the utility model is to provide a high-efficiency explosion-proof shielded cable connector rear-insertion lightning arrester, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high-efficiency explosion-proof shielded cable connector rear-insertion lightning arrester, comprising an outer shielding layer, a cable line is provided on one side of the outer shielding layer, connectors are provided at both upper and lower ends of the cable line, anti-slip parts are provided on the inner surface of the connector, first connecting plates are provided at both front and rear ends of the two connectors, a first bolt for fixing the two first connecting plates is provided at the upper end of the first connecting plate, a fixing plate is provided at one end of the connector, an empty slot is provided in the fixing plate, multiple groups of first springs are provided in the empty slot, a limit plate is provided at the upper end of the first spring, a card block is provided at the upper end of the limit plate, a fixing frame is provided at both upper and lower ends of the outer shielding layer, and an opening is provided at one end of the fixing frame A slot is provided in the outer shielding layer, a first insulating shell is provided in the first insulating shell, a conductive connecting member is provided in the inner shielding layer, a second bolt for fixing the conductive connecting member is provided at the upper end of the outer shielding layer, a second insulating shell is provided at the lower end of the outer shielding layer, a zinc oxide electrode is provided in the second insulating shell, a bottom cover is provided at the lower end of the second insulating shell, a plurality of second springs are provided at the upper end of the bottom cover, a clamping plate is provided at the upper end of the second spring, a grounding wire is inserted into the second insulating shell, second connecting plates are provided on both sides of the second insulating shell and the bottom cover, and a third bolt for fixing the two second connecting plates is provided at the upper end of the second connecting plate.

[0007] Preferably, the anti-slip member is welded inside the connecting member, and two groups of the first connecting plates are respectively welded to the front and rear ends of the two connecting members, and the two first connecting plates are detachably connected by a first bolt.

[0008] Preferably, the two fixing plates are respectively welded to one end of the two connecting parts, the first spring is detachably connected to the empty slot opened in the fixing plate, the limiting plate is movably connected to the empty slot, and the clamping block is welded to the upper end of the limiting plate.

[0009] Preferably, the two fixed frames are respectively welded to the upper and lower ends of the outer shielding layer, the clamping block is clamped with the slot opened at one end of the fixed frame, the first insulating shell is movably connected in the outer shielding layer, the inner shielding layer is movably connected in the first insulating shell, and the conductive connecting part is detachably connected to the outer shielding layer by a second bolt.

[0010] Preferably, the second insulating shell is welded to the lower end of the outer shielding layer, the second spring is detachably connected to the upper end of the bottom cover, the clamping plate is detachably connected to the upper end of the second spring, and the grounding wire is inserted into the second insulating shell.

[0011] Preferably, two groups of the second connecting plates are respectively welded to both sides of the second insulating shell and the bottom cover, and the two second connecting plates are detachably connected by a third bolt.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This high-efficiency explosion-proof shielded cable connector is rear-inserted into the lightning arrester. The two connectors can be easily installed on the outer surface of the cable through the first connecting plate and the first bolt, and the anti-slip part provided on the inner side of the connector can prevent the connector from slipping after installation. The fixed plate and the card block can be provided to fix the cable under the action of the fixing frame and the slot after the cable is inserted into the inner shielding layer. At the same time, the cable can be easily removed from the inner shielding layer when the lightning arrester needs to be disassembled.

[0014] 2. This high-efficiency explosion-proof shielded cable connector rear-insertion lightning arrester can conveniently install the bottom cover on the lower end of the second insulating shell through the second connecting plate and the third bolt. Under the action of the second spring, the clamping plate can be pushed to tighten the grounding wire inserted into the second insulating shell, so that it always fits with the lower end of the zinc oxide electrode, ensuring that the lightning current can be discharged to the ground efficiently and quickly, preventing the protected equipment from being subjected to excessive voltage, and effectively protecting the cable from damage by lightning strikes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the outer shielding layer of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the fixed plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the second insulating shell of the present utility model.

[0019] In the figure: 1. Outer shielding layer; 2. Cable; 3. Connector; 4. Anti-slip part; 5. First connecting plate; 6. First bolt; 7. Fixing plate; 8. Empty slot; 9. First spring; 10. Limiting plate; 11. Block; 12. Fixing frame; 13. Slot; 14. First insulating shell; 15. Inner shielding layer; 16. Conductive connector; 17. Second bolt; 18. Second insulating shell; 19. Zinc oxide electrode; 20. Bottom cover; 21. Second spring; 22. Clamping plate; 23. Grounding wire; 24. Second connecting plate; 25. Third bolt. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Example 1, as Figure 1-Figure 3 As shown, a high-efficiency explosion-proof shielded cable connector rear-inserted lightning arrester is provided. Connectors 3 are provided at the upper and lower ends of the cable line 2. Anti-slip parts 4 are welded on the inner surface of the connector 3. First connecting plates 5 are welded on the front and rear ends of the two connectors 3. The two first connecting plates 5 are detachably connected by a first bolt 6. A fixing plate 7 is welded at one end of the connector 3. An empty slot 8 is provided in the fixing plate 7. Multiple groups of first springs 9 are detachably connected in the empty slot 8. The upper end of the first spring 9 is detachably connected to a limiting plate 10. The limiting plate 10 is movably connected to the empty slot 8. A clamping block 11 is welded on the upper end of the limiting plate 10. Fixed frames 12 are welded at the upper and lower ends of the outer shielding layer 1. A slot 13 is provided at one end of the fixing frame 12. The clamping block 11 is clamped with the slot 13. A first insulating shell 14 is movably connected in the outer shielding layer 1, and an inner shielding layer 15 is movably connected in the first insulating shell 14.

[0022] By means of the first connecting plate 5 and the first bolt 6, the two connecting parts 3 can be conveniently installed on the outer surface of the cable 2, and the anti-slip part 4 provided on the inner side of the connecting part 3 can prevent the connecting part 3 from slipping after the installation is completed. By means of the fixed plate 7 and the clamping block 11, after the cable 2 is inserted into the inner shielding layer 15, the cable 2 can be fixed under the action of the fixed frame 12 and the slot 13. At the same time, the cable 2 can be conveniently removed from the inner shielding layer 15 when the lightning arrester needs to be disassembled.

[0023] Example 2, as Figure 1 、 Figure 2 、 Figure 4 As shown, a high-efficiency explosion-proof shielded cable connector rear-insertion lightning arrester, a second insulating shell 18 is welded to the lower end of the outer shielding layer 1, a zinc oxide electrode 19 is arranged in the second insulating shell 18, a bottom cover 20 is provided at the lower end of the second insulating shell 18, a plurality of second springs 21 are detachably connected to the upper end of the bottom cover 20, a clamping plate 22 is detachably connected to the upper end of the second spring 21, a grounding wire 23 is inserted into the second insulating shell 18, and second connecting plates 24 are welded on both sides of the second insulating shell 18 and the bottom cover 20, and the two second connecting plates 24 are detachably connected by third bolts 25.

[0024] The bottom cover 20 can be conveniently installed on the lower end of the second insulating shell 18 by means of the second connecting plate 24 and the third bolt 25. The clamping plate 22 can be pushed under the action of the second spring 21 to tighten the grounding wire 23 inserted into the second insulating shell 18, so that it is always in contact with the lower end of the zinc oxide electrode 19, ensuring that the lightning current can be discharged to the ground efficiently and quickly, preventing the protected equipment from being subjected to excessive voltage, and effectively protecting the cable from damage by lightning strikes.

[0025] It should be noted that the present invention is a high-efficiency explosion-proof shielded cable connector rear-insertion lightning arrester. When in use, the two connectors 3 are respectively clamped at the upper and lower ends of the cable 2, and the two sets of first connecting plates 5 are fitted together. Then the first bolts 6 are tightened to fix the two first connecting plates 5. At the same time, under the action of the anti-slip member 4, the two connectors 3 are fastened and installed on the surface of the cable 2. Then, one end of the cable 2 is inserted into the inner shielding layer 15 in the outer shielding layer 1. After the cable 2 is inserted into the inner shielding layer 15, the cable 2 is inserted into the inner shielding layer 15. When inserting, the fixing plate 7 will be inserted into the fixing frame 12, and the fixing frame 12 will press the card block 11 into the empty slot 8 opened in the fixing plate 7. When the card block 11 moves to the slot 13 opened on the surface of the fixing frame 12, the first spring 9 will push the limit plate 10 and the card block 11 to move upward. At this time, the card block 11 will pop out of the slot 13. At this time, the fixing plate 7 and the fixing frame 12 can be connected, and one end of the cable 2 can be firmly connected to the inner shielding layer 15.

[0026] When installing the grounding wire 23, one end of the grounding wire 23 is inserted into the second insulating shell 18, and then the bottom cover 20 is inserted into the lower end of the second insulating shell 18, and at the same time, the two sets of second connecting plates 24 are fit together, and then the two second connecting plates 24 are connected by the third bolt 25. When the bottom cover 20 is installed, the clamping plate 22 will be pushed upward under the action of the elastic force of the second spring 21, and the clamping plate 22 will cooperate with the zinc oxide electrode 19 to clamp the grounding wire 23 to prevent the grounding wire 23 from falling off from the second insulating shell 18 during use. When the cable 2 is struck by lightning, the lightning current will flow into the grounding wire 23 through the zinc oxide electrode 19 under the guidance of the conductive connector 16, and the grounding wire 23 will then discharge the lightning current to the ground, effectively protecting the cable from damage by lightning.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency explosion-proof shielded cable connector rear-insertion lightning arrester, comprising an outer shielding layer (1), characterized in that: A cable (2) is provided on one side of the outer shielding layer (1), and connectors (3) are provided at both upper and lower ends of the cable (2), and an anti-slip part (4) is provided on the inner surface of the connector (3). A first connecting plate (5) is provided at both front and rear ends of the two connectors (3), and a first bolt (6) for fixing the two first connecting plates (5) is provided at the upper end of the first connecting plate (5). A fixing plate (7) is provided at one end of the connector (3), and a slot (8) is provided in the fixing plate (7). Multiple groups of first springs (9) are provided in the slot (8), and a limiting plate (10) is provided at the upper end of the first spring (9), and a block (11) is provided at the upper end of the limiting plate (10). A fixing frame (12) is provided at both upper and lower ends of the outer shielding layer (1), and a slot (13) is provided at one end of the fixing frame (12). A first insulating shell (14) is provided in the outer shielding layer (1). An inner shielding layer (15) is provided in the first insulating shell (14), a conductive connecting piece (16) is provided in the inner shielding layer (15), a second bolt (17) for fixing the conductive connecting piece (16) is provided at the upper end of the outer shielding layer (1), a second insulating shell (18) is provided at the lower end of the outer shielding layer (1), a zinc oxide electrode (19) is provided in the second insulating shell (18), a bottom cover (20) is provided at the lower end of the second insulating shell (18), a plurality of second springs (21) are provided at the upper end of the bottom cover (20), a clamping plate (22) is provided at the upper end of the second spring (21), a grounding wire (23) is inserted into the second insulating shell (18), second connecting plates (24) are provided on both sides of the second insulating shell (18) and the bottom cover (20), and a third bolt (25) for fixing the two second connecting plates (24) is provided at the upper end of the second connecting plate (24).

2. The high-efficiency explosion-proof shielded cable connector rear-insertion arrester according to claim 1, characterized in that: The anti-slip member (4) is welded inside the connecting member (3), and two groups of the first connecting plates (5) are respectively welded to the front and rear ends of the two connecting members (3), and the two first connecting plates (5) are detachably connected via a first bolt (6).

3. The high-efficiency explosion-proof shielded cable connector rear-insertion arrester according to claim 1, characterized in that: The two fixing plates (7) are respectively welded to one end of the two connecting members (3); the first spring (9) is detachably connected to a slot (8) provided in the fixing plate (7); the limiting plate (10) is movably connected to the slot (8); and the clamping block (11) is welded to the upper end of the limiting plate (10).

4. The high-efficiency explosion-proof shielded cable connector rear-insertion arrester according to claim 1, characterized in that: The two fixing frames (12) are respectively welded to the upper and lower ends of the outer shielding layer (1); the clamping block (11) is clamped to the slot (13) opened at one end of the fixing frame (12); the first insulating shell (14) is movably connected in the outer shielding layer (1); the inner shielding layer (15) is movably connected in the first insulating shell (14); and the conductive connecting member (16) is detachably connected to the outer shielding layer (1) via a second bolt (17).

5. The high-efficiency explosion-proof shielded cable connector rear-insertion arrester according to claim 1, characterized in that: The second insulating shell (18) is welded to the lower end of the outer shielding layer (1), the second spring (21) is detachably connected to the upper end of the bottom cover (20), the clamping plate (22) is detachably connected to the upper end of the second spring (21), and the grounding wire (23) is inserted into the second insulating shell (18).

6. The high-efficiency explosion-proof shielded cable connector rear-insertion arrester according to claim 1, characterized in that: Two groups of the second connecting plates (24) are respectively welded to both sides of the second insulating shell (18) and the bottom cover (20), and the two second connecting plates (24) are detachably connected via a third bolt (25).

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