CN215008918U

CN215008918U - Lightning protection system

Info

Publication number: CN215008918U
Application number: CN202121489424.0U
Authority: CN
Inventors: 张婉; 王宁; 韩帅
Original assignee: Beijing Xingtiantong Telecommunications Technology Co ltd
Current assignee: Beijing Xingtiantong Telecommunications Technology Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-12-03
Anticipated expiration: 2031-07-01

Abstract

The utility model relates to the technical field of lightning protection devices, in particular to a lightning protection system, which is convenient for adjusting the position of a lightning receptor and has higher universality, the lightning protection system comprises the lightning receptor, a down lead and a grounding device which are connected in sequence, the lightning arrester comprises a needle point, a conduction assembly and a base, the base is connected with a connecting assembly, the connecting assembly comprises a connecting seat in threaded connection with the base, an extension plate fixedly connected with the connecting seat, a first connecting plate and a second connecting plate which are fixedly connected with the extension plate and arranged in parallel, the first connecting plate is in threaded connection with a tightening bolt, the axial direction of the tightening bolt is vertical to the first connecting plate, when not influencing arrester, downlead and earthing device and carrying out the thunder and lightning current and let out into the ground, be convenient for through coupling assembling realize the adjustment and the fixing of arrester position for whole lightning-arrest system's commonality obtains improving greatly.

Description

Lightning protection system

Technical Field

The utility model relates to a lightning protection device technical field, in particular to lightning protection system.

Background

Lightning-induced power system overvoltage is caused by lightning to ground discharge. When the field intensity between the thundercloud and the ground is larger than the free critical intensity of the atmosphere, a partial discharge channel is generated and develops from the edge of the thundercloud to the ground, namely pilot discharge. When the thundercloud leader current approaches the ground, the electric field around the high-rise object parts on the ground reaches a strength that ionizes the air and creates a current column, on top of which there are tip conductors where the charge surface density is high. Therefore, the top of the lightning rod can be led to the surrounding objects to generate head-on leading, the descending leading is most easily connected, the development direction of the descending leading is led to the lightning rod, and the lightning rod is only discharged, so that the objects near the lightning rod are protected and prevented from being struck by lightning. The lightning is attracted to be electrically shocked by itself and the lightning current is discharged into the ground, which is the protection action principle of the lightning rod.

The lightning protection system belongs to the lightning protection device of the simplest structure, comprises arrester, downlead and earthing device, and according to its theory of action, the basic thinking that its constitutes is: the lightning receptor is higher than the protected object, the thundercloud discharge channel is led to the lightning receptor, and then the lightning current is discharged to the ground through the down conductor and the grounding device.

Since the lightning receptor is the trigger end for lightning triggering discharge, the stability of the lightning receptor is the key to the operation of the whole lightning protection system. Generally, to ensure the stability of the lightning receptor, the lightning receptor is directly fixed at the installation position, so that when the protected object needs lightning protection only temporarily or needs to be moved, the movement of the position of the lightning receptor becomes inconvenient, resulting in low versatility of the lightning protection system.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a lightning-arrest system is convenient for adjust the position of arrester, has higher commonality.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a lightning-arrest system, is including the arrester, downlead and the earthing device that connect gradually, the arrester includes needle point, conduction subassembly and base, the base is connected with coupling assembling, coupling assembling includes threaded connection in the connecting seat of base, fixed connection in the extension board of connecting seat, fixed connection in the first connecting plate and the second connecting plate of extension board and parallel arrangement, threaded connection has on the first connecting plate to support the tight bolt, support the first connecting plate of axis direction perpendicular to of tight bolt.

Through the technical scheme: when lightning protection system draws thunder to install, be connected coupling assembling and arrester to according to actual mounted position's needs, realize the fixed of extension board and connecting seat through first connecting plate and second connecting plate, simultaneously because threaded connection between connecting seat and the base, and one of them state of threaded connection is fixed connection, and has convenient to detach's characteristics, has the effect of the adjustment arrester position of being convenient for.

And after the installation position of the lightning arrester is confirmed through the first connecting plate and the second connecting plate, the fastening bolt is abutted to realize the fixing of the positions of the connecting assembly and the lightning arrester, and the installation stability of the lightning arrester is ensured while the universality of a lightning protection system is improved.

The utility model discloses further set up to: the connecting seat includes solid fixed ring and fixed connection in solid fixed ring's go-between, gu be provided with in the fixed ring with base complex screw hole, and solid fixed ring's external diameter is greater than the external diameter of go-between, the one end fixed connection of extension board is in solid fixed ring's lateral wall.

Through the technical scheme: realize through the setting of solid fixed ring and screw hole and the base between fixed, and because the external diameter of solid fixed ring is greater than the external diameter of go-between, further improve the connection stability between connecting seat and the base.

The utility model discloses further set up to: the first connecting plate is fixedly connected with an extension sleeve which is sleeved outside the abutting bolt and matched with the abutting bolt.

Through the technical scheme: increase the locking stroke of supporting tight bolt through extending the sleeve, improve locking bolt's locking stability, further improve coupling assembling to the installation stability of connecing the dodge ware.

The utility model discloses further set up to: and a hand wheel is arranged at one end of the abutting bolt far away from the connecting seat.

Through the technical scheme: the hand wheel is convenient for realizing the rotation control of the abutting bolt, and the fixing and the dismounting of the connecting assembly are realized.

The utility model discloses further set up to: and an anti-slip pad is arranged at one end of the tightening bolt, which is far away from the hand wheel.

Through the technical scheme: the stability of abutting and fixing of the abutting bolt is further improved through the anti-slip mat.

The utility model discloses further set up to: the conduction assembly comprises a stainless steel ball, a connecting buckle and a PVC pipe which are sequentially connected from the needle point to the base, an upper connecting rod which penetrates through the connecting buckle and extends into the PVC pipe is arranged in the stainless steel ball, and a piezoresistor which is connected with the upper connecting rod and the base is arranged in the PVC pipe.

Through the technical scheme: the lightning is guided by the needle tip, then the lightning current is transmitted to the down conductor and the grounding device by the conduction assembly and then is discharged to the ground.

The utility model discloses further set up to: an epoxy resin adhesive layer is arranged between the piezoresistor and the PVC pipe.

Through the technical scheme: the piezoresistor is fixed and isolated from the PVC pipe through the epoxy resin adhesive layer.

The utility model discloses further set up to: one end of the epoxy resin adhesive layer, which is far away from the base, is provided with an upper cover which is abutted against the connecting buckle, and the upper connecting rod penetrates through the upper cover and the epoxy resin adhesive layer to be connected to the piezoresistor.

Through the technical scheme: the installation stability of the piezoresistor is further improved through the upper cover, and the influence of the lightning arrester shaking on the contact condition of the piezoresistor is reduced.

The utility model discloses further set up to: the stainless steel ball is provided with a plurality of connecting bolts connected with the upper connecting rod.

Through the technical scheme: the connection stability between the stainless steel ball and the upper section connecting rod is improved through the connecting bolts.

The utility model discloses further set up to: the connecting bolts extend along the radial direction of the stainless steel ball, and the connecting bolts are uniformly distributed on the semicircular tangent plane of the same stainless steel ball.

Through the technical scheme: the stainless steel ball fixing device is arranged on the same semicircular tangent plane, so that the fixing force of the connecting bolts to the stainless steel ball is more concentrated, and the stabilizing effect of the stainless steel ball is stronger.

To sum up, the utility model discloses following beneficial effect has:

realize through coupling assembling and be connected between the base, when not influencing arrester, downlead and earthing device and carry out the thunder and lightning flow and leak into the ground, be convenient for through coupling assembling realize the adjustment and the fixing of arrester position for whole lightning-arrest system's commonality obtains improving greatly.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a schematic structural diagram of the lightning receptor in the present embodiment;

FIG. 3 is a schematic cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic structural view of a bleed passage in the base of the present embodiment;

FIG. 5 is a schematic structural diagram of a drain passage on a stainless steel ball in this embodiment;

fig. 6 is a schematic structural view of the connecting assembly in the present embodiment.

Reference numerals: 1. a lightning receptor; 2. a down conductor; 3. a needle tip; 4. a conductive component; 5. a base; 6. a bleed passage; 7. stainless steel balls; 8. a connecting buckle; 9. PVC pipes; 10. an upper section connecting rod; 11. mounting holes; 12. a connecting bolt; 13. a voltage dependent resistor; 14. an epoxy resin adhesive layer; 15. an upper cover; 16. a connecting assembly; 17. a connecting seat; 18. an extension plate; 19. a first connecting plate; 20. a second connecting plate; 21. a fixing ring; 22. a connecting ring; 23. a threaded hole; 24. an extension sleeve; 25. tightly abutting against the bolt; 26. a handwheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A lightning protection system, as shown in figure 1, comprises a lightning receptor 1, a down conductor 2 and a grounding device (not shown in the figure) which are connected in sequence, a thundercloud discharge channel is led to the lightning receptor 1 by utilizing the protruding position of the lightning receptor higher than a protected object, and then the lightning current is discharged to the ground through the down conductor 2 and the grounding device.

As shown in fig. 2, the lightning receptor 1 comprises a tip 3, a conducting member 4 and a base 5, wherein the tip 3 and the base 5 are made of stainless steel.

As shown in fig. 3 and 4, the conducting member 4 and the base 5 are provided with a leakage path 6, and the leakage path 6 leaks the lightning current at the needle tip 3 to the ground through the down conductor 2 and the grounding member.

The conducting component 4 comprises a stainless steel ball 7, a connecting buckle 8 and a PVC pipe 9 which are fixedly connected in sequence from the needle tip 3 to the base 5.

As shown in fig. 5, the drain passage 6 of the stainless steel ball 7 extends in the radial direction of the stainless steel ball 7.

As shown in FIG. 3, an upper connecting rod 10 penetrates through the drainage channel 6 of the stainless steel ball 7, a mounting hole 11 is formed in the end part, close to the needle point 3, of the upper connecting rod 10, and the needle point 3 penetrates through the mounting hole 11, so that the fixed connection between the needle point 3 and the upper connecting rod 10 is realized.

The stainless steel ball 7 is provided with a plurality of connecting bolts 12, and the connecting bolts 12 are threaded on the upper connecting rod 10 after penetrating through the stainless steel ball 7. The connecting bolts 12 extend along the radial direction of the stainless steel ball 7 and are perpendicular to the axis of the upper connecting rod 10, and the connecting bolts 12 are uniformly distributed on the semicircular section of the same stainless steel ball 7.

A piezoresistor 13 is arranged in the PVC pipe 9, and two ends of the piezoresistor 13 are respectively connected with the upper section connecting rod 10 and the base 5. And an epoxy resin adhesive layer 14 is arranged between the piezoresistor 13 and the PVC pipe 9. Through the arrangement of the piezoresistor 13 and the epoxy resin adhesive layer 14, the volume of the lightning receptor 1 is reduced, and the generation of electric arcs is reduced.

One end of the epoxy resin adhesive layer 14, which is far away from the base 5, is provided with an upper cover 15 which is abutted against the connecting buckle 8, and the upper section connecting rod 10 passes through the upper cover 15 and the epoxy resin adhesive layer 14 to be connected to the piezoresistor 13. The upper cover 15 further improves the installation stability of the piezoresistor 13, and reduces the influence of the shake of the lightning receptor 1 on the contact condition of the piezoresistor 13.

As shown in fig. 6, to facilitate the position adjustment and fixing of the lightning receptor 1, the base 5 may be additionally connected with a connecting member 16, and the connecting member 16 and the lightning receptor 1 may be placed on any support rod to be used after the connection is completed.

Connecting assembly 16 includes a connecting seat 17 screwed to base 5, an extending plate 18 fixedly connected to connecting seat 17, a first connecting plate 19 and a second connecting plate 20 fixedly connected to extending plate 18 and arranged in parallel, in this embodiment, the first connecting plate 19 is defined as being away from connecting seat 17, and the second connecting plate 20 is defined as being close to connecting seat 17, that is, the first connecting plate 19 is fixedly connected to the end of extending plate 18 away from connecting seat 17.

Connecting seat 17 includes fixed ring 21 and fixed connection in fixed ring 21's go-between 22, is provided with in the fixed ring 21 with base 5 complex screw hole 23, and fixed ring 21's outer diameter is greater than the outer diameter of go-between 22, the one end fixed connection in fixed ring 21's lateral wall of extension board 18. An extension sleeve 24 is fixedly connected to the first connecting plate 19, a tightening bolt 25 is connected to the extension sleeve 24 through an internal thread, and the axial direction of the tightening bolt 25 is perpendicular to the first connecting plate 19.

The end of the tightening bolt 25 close to the second connecting plate 20 is fixedly connected with a non-slip mat (not shown in the figure), the non-slip mat can be made of rubber, and the end of the tightening bolt 25 far from the second connecting plate 20 is fixedly connected with a hand wheel 26.

Through in the screw hole 23 with base 5 threaded connection in solid fixed ring 21, realize the fixed between arrester 1 and the coupling assembling 16 to arrange first connection and second connecting plate 20 in the both sides of fixed position, then rotate hand wheel 26 and drive and support tight bolt 25 and rotate and support tight fixed position, adopt the design of two-sided clamp, realize the fixed of arrester 1 and position adjustment, improve whole lightning-arrest system's commonality.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a lightning protection system, includes arrester (1), downlead (2) and earthing device that connect gradually, its characterized in that: lightning arrester (1) includes needle point (3), conduction subassembly (4) and base (5), base (5) are connected with coupling assembling (16), coupling assembling (16) include threaded connection in connecting seat (17) of base (5), fixed connection in extension board (18) of connecting seat (17), fixed connection in extension board (18) and parallel arrangement's first connecting plate (19) and second connecting plate (20), threaded connection has on first connecting plate (19) supports fastening bolt (25), support the first connecting plate (19) of axis direction perpendicular to of fastening bolt (25).

2. A lightning protection system according to claim 1, characterized in that: connecting seat (17) are including solid fixed ring (21) and fixed connection in go-between (22) of solid fixed ring (21), be provided with in solid fixed ring (21) with base (5) complex screw hole (23), and the outer diameter of solid fixed ring (21) is greater than the outer diameter of go-between (22), the one end fixed connection of extension board (18) is in the lateral wall of solid fixed ring (21).

3. A lightning protection system according to claim 1, characterized in that: the first connecting plate (19) is fixedly connected with an extension sleeve (24) which is sleeved outside the abutting bolt (25) and matched with the abutting bolt (25).

4. A lightning protection system according to claim 1, characterized in that: and a hand wheel (26) is arranged at one end of the abutting bolt (25) far away from the connecting seat (17).

5. A lightning protection system according to claim 4, characterized in that: and an anti-skid pad is arranged at one end of the tightening bolt (25) far away from the hand wheel (26).

6. A lightning protection system according to claim 1, characterized in that: the conduction assembly (4) comprises a stainless steel ball (7), a connecting buckle (8) and a PVC pipe (9) which are sequentially connected from a needle point (3) to a base (5), an upper connecting rod (10) which penetrates through the connecting buckle (8) and extends into the PVC pipe (9) is arranged in the stainless steel ball (7), and a piezoresistor (13) which is connected with the upper connecting rod (10) and the base (5) is arranged in the PVC pipe (9).

7. A lightning protection system according to claim 6, characterized in that: an epoxy resin adhesive layer (14) is arranged between the piezoresistor (13) and the PVC pipe (9).

8. A lightning protection system according to claim 7, characterized in that: one end, far away from the base (5), of the epoxy resin adhesive layer (14) is provided with an upper cover (15) which is abutted to the connecting buckle (8), and the upper section connecting rod (10) penetrates through the upper cover (15) and the epoxy resin adhesive layer (14) to be connected to the piezoresistor (13).

9. A lightning protection system according to claim 6, characterized in that: the stainless steel ball (7) is provided with a plurality of connecting bolts (12) connected with the upper connecting rod (10).

10. A lightning protection system according to claim 9, characterized in that: the connecting bolts (12) radially extend along the stainless steel balls (7), and the connecting bolts (12) are uniformly distributed on the semicircular tangent plane of the same stainless steel ball (7).