Connecting piece for lightning protection and grounding

Abstract

The utility model discloses a connecting piece for lightning protection and grounding, which comprises a first clamping block, a second clamping block is arranged on the rear side of the first clamping block, the sides, close to each other, of the first clamping block and the second clamping block are of arc-shaped structures, and the first clamping block and the second clamping block are used for clamping and connecting a lead and a connecting end of a grounding body. The first clamping and fixing block and the second clamping and fixing block are sleeved with the same protection pipe, and the protection pipe shields and protects the exterior of the connecting end. According to the utility model, through the arrangement of a series of structures, voltage-controlled clamping connection can be carried out on the connecting end of the lead and the grounding body, the situation of connection looseness caused by small clamping force can be effectively reduced, the stability in the clamping connection process is improved, the connecting end can be shielded and protected, the safety in the clamping connection process is improved, and the service life of the grounding body is prolonged. Meanwhile, cold air can be regularly blown to the connecting end for heat dissipation and cooling, the aging rate of the connecting end is reduced, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection grounding connectors, in particular to a lightning protection grounding connector. Background Art

[0002] Lightning protection grounding is divided into two concepts, one is lightning protection, to prevent damage caused by lightning strikes; the other is electrostatic grounding, to prevent harm caused by static electricity. In the power generation process in the wind power field, lightning protection work is required, and the grounding body and down conductor are key components in the lightning protection setting, which can make the lightning rod electrically connected to the earth, so that the lightning rod can smoothly conduct the charge in the cloud into the earth through tip discharge, thereby playing a role in lightning protection. Generally, there needs to be a good electrical connection between the grounding body and the down conductor, and the connecting end of the grounding body and the down conductor is connected by a connector. For example, application number: 202123323349.3 discloses a connector for lightning protection grounding, which belongs to the technical field of grounding connectors; it includes a second fixed part, the A first fixing part is arranged above the second fixing part, baffles are arranged on both sides of the second fixing part, a positioning assembly is arranged between the first fixing part and the second fixing part, and the positioning assembly includes a limiting rod, a connecting block, a positioning screw and a bearing seat, wherein connecting blocks are arranged on both sides of the first fixing part, a limiting rod is arranged on one side of the first fixing part, a positioning screw is arranged on the side of the first fixing part away from the limiting rod, and a bearing seat is arranged at the lower end of the limiting rod and the positioning screw; the device adjusts the distance between the first fixing part and the second fixing part by arranging the positioning assembly to adapt to the fixing of connecting ends of different thicknesses, and prevents the connecting end from being damaged due to excessive pressure between the first fixing part and the second fixing part by arranging the buffer protection assembly;

[0003] The lightning protection grounding connector disclosed in the above patent is also suitable for the field of wind power generation. It fixes the connecting end of the lead and the grounding body through the first fixing part and the second fixing part, and at the same time cooperates with the buffer protection component to buffer the clamping force, thereby reducing the risk of damage to the connecting end caused by the large clamping force. However, there are still some shortcomings in its use: 1. The buffer protection component lacks a structure for monitoring the pressure. Although the buffer protection component can play an effective buffering effect, its pressure is uncontrollable. When the pressure is low, there is an unstable connection; 2. The connector lacks a structure for dissipating the heat of the connecting end of the lead and the grounding body. When the resistance of the grounding body is large, heat will be generated. When the temperature is too high, it is easy to accelerate the aging risk of the lead and the connecting end of the connector, which cannot meet the use requirements. Based on the above situation, improvements are made, so we propose a lightning protection grounding connector. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a lightning protection grounding connector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The first and second clamping blocks are used to clamp and connect the lead wires and the grounding body, and the first and second clamping blocks are used to clamp and connect the lead wires and the grounding body. The first and second clamping blocks are provided with a same protective tube, and the protective tube shields and protects the outside of the connection end. A mounting block is fixedly installed on the inner wall of the front side of the protective tube, and the rear side of the mounting block is fixedly connected to the front side of the first clamping block. The first clamping block, the mounting block and the protective tube are provided with a same connecting blowing mechanism. A cold air blower is embedded and fixed on the front side of the protective tube. The connecting blowing mechanism and the cold air blower cooperate to blow cold air to the connection end to dissipate heat and cool down. The bottom of the cold air blower is fixed and electrically connected to a time-controlled switch. The time-controlled switch is used to set the opening and closing time of the cold air blower. The setting principle is the prior art and will not be elaborated here. The rear side of the cold air blower is The discharge end is connected with the interior of the connecting blowing mechanism, a plurality of ventilation holes are opened on the left inner wall of the protective tube, and a one-way valve with the left side as the outlet is fixedly sleeved in the ventilation hole, and the one-way valve and the ventilation hole cooperate to discharge the gas inside the protective tube, and the rear side of the first clamping block is fixedly connected with two symmetrically arranged L-shaped guide rods, and the second clamping block is slidingly sleeved on the two L-shaped guide rods, and the two L-shaped guide rods have a guiding effect on the second clamping block, and the rear side of the second clamping block is fixedly connected with an elastic pressure detection mechanism, and the rear side of the elastic pressure detection mechanism is fixedly connected with a threaded driving mechanism, and the elastic pressure detection mechanism cooperates with the threaded driving mechanism to drive the second clamping block to move and clamp the connecting end for pressure control and fixation, and the rear side of the threaded driving mechanism extends to the rear side of the protective tube, and the rear side of the protective tube is embedded and fixed with an alarm light, which is electrically connected to the elastic pressure detection mechanism, and the setting of the alarm light is used to light up to remind personnel when the clamping force reaches a preset value.

[0007] Preferably, the connecting blowing mechanism includes a connecting groove opened on the front side of the first clamping block, a plurality of blowing holes are opened on the inner wall on the rear side of the connecting groove, and the cold air inside the connecting groove is discharged through the plurality of blowing holes. A connecting pipe is embedded and fixed on the rear side of the mounting block, and the rear end of the connecting pipe extends into the connecting groove. A connecting cavity is opened on the protective pipe, and the front end of the connecting pipe is connected to the rear side of the connecting cavity, and the rear side of the air cooler extends into the connecting cavity.

[0008] Preferably, the elastic pressure detection mechanism includes a moving rod slidably mounted on two L-shaped guide rods, the two L-shaped guide rods guide the moving rod, a pressure sensor is embedded and fixed on the front side of the moving rod, the front side of the pressure sensor is the detection end and is fixedly connected to a connecting plate, a plurality of springs are fixedly connected between the front side of the connecting plate and the rear side of the second clamping block, the pressure sensor detects the squeezing force of the spring through the connecting plate, a controller is built in the alarm light, and the pressure sensor is electrically connected to the controller.

[0009] Preferably, the threaded drive mechanism includes a rectangular rod fixedly connected to the rear side of the moving rod, a rectangular hole is opened on the rear inner wall of the protective tube, the rectangular rod is slidably sleeved in the rectangular hole, a screw rod is rotatably installed in the rectangular hole, the rectangular rod is threadedly sleeved on the screw rod, and the rectangular rod and the screw rod are threadedly connected in such a way that the rectangular rod can be driven to move while the screw rod rotates, and a knob is fixedly connected to the rear end of the screw rod.

[0010] Preferably, the first clamping block and the second clamping block are both bonded and fixed with anti-skid rubber on one side close to each other. The provision of the anti-skid rubber can effectively reduce slipping during the clamping and fixing process. A plurality of connecting holes are provided on the rear side of the anti-skid rubber located on the front side, and the connecting holes are connected to the corresponding blowing holes.

[0011] Preferably, a bearing is fixedly connected between the inner walls of both sides of the rectangular hole, the inner side of the inner ring of the bearing is fixedly connected to the outer side of the screw, the bearing serves to provide a rotatable installation for the screw, and a threaded hole is opened at the rear end of the rectangular rod, which is threadedly connected to the screw.

[0012] Preferably, a rubber pad is bonded and installed on the top of the protective tube, and a cross-shaped perforation is opened on the rubber pad. The cross-shaped perforation is used for the lead wire to pass through. The rubber pad is elastic and can be used to insert leads of different diameters.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1. Through the cooperation of the first clamping block, the second clamping block, the L-shaped guide rod, the elastic pressure detection mechanism, the threaded drive mechanism and the alarm light, the connection end of the lead wire and the grounding body can be clamped and connected and fixed by pressure control. The pressure control clamping and fixing method can effectively reduce the situation of loose connection caused by small clamping force and improve the stability during the clamping connection process;

[0015] 2. The protective tube and rubber pad can be used to shield and protect the connection ends of the lead wire and the grounding body, reduce the risk of collision and damage between the connection ends and external stones, and improve the safety during the clamping connection process;

[0016] 3. Through the coordination of the cooling fan, time-controlled switch, connected blowing mechanism and one-way valve, cold air can be blown to the connection end of the lead wire and the grounding body automatically and regularly to dissipate heat, which can effectively reduce the risk of accelerated aging of the connection end due to high temperature;

[0017] The utility model can control the pressure and clamp the connection ends of the lead wire and the grounding body through the arrangement of a series of structures, which can effectively reduce the situation of loose connection caused by small clamping force, improve the stability during the clamping connection process, and can shield and protect the connection ends to improve the safety during the clamping connection process. At the same time, cold air can be blown to the connection ends at a regular time to dissipate heat and cool down, which can reduce the aging rate of the connection ends and improve safety in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural schematic diagram of a lightning protection grounding connector proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of a top view and cross-section structure of a lightning protection grounding connector proposed by the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0021] In the figure: 1. protective tube; 2. mounting block; 3. first clamping block; 4. connecting groove; 5. blowing hole; 6. connecting pipe; 7. connecting cavity; 8. air cooler; 9. one-way valve; 10. second clamping block; 11. L-shaped guide rod; 12. moving rod; 13. pressure sensor; 14. spring; 15. rectangular rod; 16. screw; 17. alarm light; 18. rectangular hole; 19. rubber pad; 1901, cross-shaped perforation. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-3A lightning protection grounding connector, comprising a first clamping block 3, a second clamping block 10 is provided on the rear side of the first clamping block 3, and the sides of the first clamping block 3 and the second clamping block 10 close to each other are both set as an arc structure, wherein the sides of the first clamping block 3 and the second clamping block 10 close to each other are both bonded and fixed with anti-slip rubber, and the setting of the anti-slip rubber can effectively reduce the slipping during the clamping and fixing process, and the first clamping block 3 and the second clamping block 10 are used to clamp and connect the connection ends of the lead and the grounding body, and the first clamping block 3 and the second clamping block 10 are sleeved with the same protective tube 1, and the top of the protective tube 1 is bonded and fixed with a male Velcro, and the top of the male Velcro A female Velcro is adhered to the top of the female Velcro, and a rubber pad 19 is adhered and fixed to the top of the female Velcro. The rubber pad 19 is connected to the protective tube 1 through the male Velcro and the female Velcro. The male Velcro and the female Velcro are connected in coordination, so that the rubber pad 19 can be quickly removed from the protective tube 1 during connection. A cross-shaped perforation 1901 is provided on the rubber pad 19, and the cross-shaped perforation 1901 is used for the lead wire to pass through. The rubber pad 19 is elastic and can be used to insert leads of different diameters. The protective tube 1 shields and protects the outside of the connection end. A mounting block 2 is fixedly installed on the inner wall of the front side of the protective tube 1, and the rear side of the mounting block 2 is fixedly connected to the front side of the first clamping block 3;

[0024] The same connecting blowing mechanism is provided on the first clamping block 3, the mounting block 2 and the protective tube 1, and a cooling fan 8 is embedded and fixed on the front side of the protective tube 1, and the bottom of the cooling fan 8 is fixed and electrically connected to a time-controlled switch, and the time-controlled switch is used to set the opening and closing time of the cooling fan 8, and its setting principle is the prior art and is not elaborated here. The rear side of the cooling fan 8 is the discharge end and is connected to the interior of the connecting blowing mechanism, wherein the connecting blowing mechanism includes a connecting groove 4 provided on the front side of the first clamping block 3, and a plurality of blowing holes 5 are provided on the inner wall on the rear side of the connecting groove 4, and a plurality of connecting holes are provided on the rear side of the anti-slip rubber on the front side, and the connecting holes are connected to the corresponding blowing holes 5 , the cold air inside the connecting groove 4 is discharged through a plurality of blowing holes 5, a connecting pipe 6 is embedded and fixed on the rear side of the mounting block 2, wherein a first through hole is opened on the rear side of the mounting block 2, the inner wall of the first through hole is fixedly connected to the outer side of the connecting pipe 6, the rear end of the connecting pipe 6 extends into the connecting groove 4, a connecting cavity 7 is opened on the protective tube 1, the front end of the connecting pipe 6 is connected to the rear side of the connecting cavity 7, wherein a second through hole is opened on the inner wall of the rear side of the connecting cavity 7, the inner wall of the second through hole is fixedly connected to the outer side of the connecting pipe 6, the rear side of the cooling fan 8 extends into the connecting cavity 7, wherein a third through hole is opened on the inner wall of the front side of the connecting cavity 7, the inner wall of the third through hole is fixedly connected to the outer side of the cooling fan 8;

[0025] A plurality of vent holes are provided on the left inner wall of the protective tube 1, and a one-way valve 9 with the left side as the outlet is fixedly sleeved in the vent hole. The one-way valve 9 cooperates with the vent hole to discharge the gas inside the protective tube 1. The rear side of the first clamping block 3 is fixedly connected to two symmetrically arranged L-shaped guide rods 11, and the second clamping block 10 is slidably sleeved on the two L-shaped guide rods 11, wherein the front side of the second clamping block 10 is provided with two first guide holes, and the inner wall of the first guide hole is slidably sleeved on the outer side of the corresponding L-shaped guide rod 11, and the two L-shaped guide rods 11 have a guiding effect on the second clamping block 10, and the rear side of the second clamping block 10 is fixedly connected to an elastic pressure detection mechanism, and the elastic pressure The force detection mechanism includes a moving rod 12 slidably mounted on two L-shaped guide rods 11, wherein two second guide holes are provided on the front side of the moving rod 12, and the inner walls of the second guide holes are slidably mounted on the outer sides of the corresponding L-shaped guide rods 11, and the two L-shaped guide rods 11 guide the moving rod 12, and a pressure sensor 13 is embedded and fixed on the front side of the moving rod 12, and the front side of the pressure sensor 13 is a detection end and is fixedly connected to a connecting plate, and a plurality of springs 14 are fixedly connected between the front side of the connecting plate and the rear side of the second clamping block 10, and the pressure sensor 13 detects the extrusion force of the spring 14 through the connecting plate, and its detection principle is a prior art and will not be elaborated here;

[0026] A threaded drive mechanism is fixedly connected to the rear side of the moving rod 12, and the rear side of the threaded drive mechanism extends to the rear side of the protective tube 1. The threaded drive mechanism includes a rectangular rod 15 fixedly connected to the rear side of the moving rod 12. A rectangular hole 18 is provided on the inner wall of the rear side of the protective tube 1. The rectangular rod 15 is slidably sleeved in the rectangular hole 18, and a screw 16 is rotatably installed in the rectangular hole 18, wherein a bearing is fixedly connected between the inner walls on both sides of the rectangular hole 18, and the inner side of the inner ring of the bearing is fixedly connected to the outer side of the screw 16, and the bearing plays the role of providing a rotatable installation for the screw 16. The rectangular rod 15 is threadedly sleeved on the screw 16, wherein a threaded hole is provided at the rear end of the rectangular rod 15, and the threaded hole is threadedly connected to the screw 16. The rectangular rod 15 and the screw 16 are threadedly connected by the threaded hole, so that the rectangular rod 15 can be driven to move while the screw 16 rotates, and a knob is fixedly connected to the rear end of the screw 16, and the knob is used to rotate the screw 16;

[0027] An alarm light 17 is embedded and fixed on the rear side of the protective tube 1. The alarm light 17 has a built-in controller. The pressure sensor 13 is electrically connected to the controller. The alarm light 17 is set to light up to remind personnel when the clamping force reaches a preset value. The utility model can control the pressure and clamp the connection end of the lead wire and the grounding body through a series of structural settings, which can effectively reduce the loose connection caused by small clamping force, improve the stability during the clamping connection process, and can shield and protect the connection end to improve the safety during the clamping connection process. At the same time, cold air can be blown to the connection end at a regular time to dissipate heat and cool down, reduce the aging rate of the connection end, and improve safety in use.

[0028] Working principle: When in use, before the lead is connected to the grounding body, first remove the rubber pad 19 from the protective tube 1, remove the cover on the top of the protective tube 1, and pass the bottom end of the lead from top to bottom through the cross-shaped perforation 1901. After the lead is inserted, the lead and the grounding body can be connected using existing technology. After the connection, the bottom end of the protective tube 1 contacts the ground, and the connecting end of the lead and the grounding body is placed in the arc structure of the first clamping block 3 and contacts the anti-slip rubber on the front side. Then, the knob is turned forward to drive the screw 16 to rotate. Under the action of the threaded hole on the rectangular rod 15, the screw 16 rotates and drives the rectangular rod 15 to move forward. The rectangular rod 15 drives the moving rod 12 to move forward. The moving rod 12 drives the second clamping block 10 to move forward through the pressure sensor 13, the connecting plate and multiple springs 14 in turn. The second clamping block 10 drives the corresponding anti-slip rubber to move. After it contacts the rear side of the connection end, the second clamping block 10 is restricted from continuing to move. At this time, the moving rod 12 that continues to move drives the pressure sensor 13 to continue to move forward and drives the connecting plate to compress the multiple springs 14. The connecting plate squeezes the second clamping block 10 through the multiple springs 14, and uses the squeezing force of the second clamping block 10 to clamp and fix the connection end. At the same time, the pressure sensor 13 detects the squeezing reaction force of the spring 14 through the connecting plate, and transmits the detected pressure value to the controller. When the pressure sensor 13 detects that the pressure value reaches the preset value, the controller controls the alarm light 17 to light up to remind the personnel. After seeing the reminder, the personnel stops turning the knob, thereby realizing the pressure-controlled clamping and fixing of the lead wire and the grounding body connection end. The pressure-controlled clamping and fixing method can effectively reduce the situation of loose connection caused by small clamping force, and improve the stability of the clamping connection process.

[0029] After clamping and fixing, the rubber pad 19 can be bonded to the top of the protection tube 1 through the male Velcro and the female Velcro. The rubber pad 19 shields the top of the protection tube 1. At the same time, with the setting of the protection tube 1, the connection end of the lead wire and the grounding body can be shielded and protected, reducing the risk of collision and damage between external stones and the connection end, and improving the safety during the clamping connection process;

[0030] The opening and closing time of the air cooler 8 is controlled in advance by a time switch. When the opening time is reached, the time switch controls the air cooler 8 to turn on. The air cooler 8 draws external gas and converts it into cold air to be blown into the connecting cavity 7. The cold air inside the connecting cavity 7 enters the connecting groove 4 through the connecting pipe 6. The cold air inside the connecting groove 4 is discharged through multiple blowing holes 5 and connecting holes to blow cold air to the connecting end of the lead wire and the grounding body. The heat on the connecting end can be absorbed and cooled by blowing cold air. At the same time, the heat inside the protective tube 1 is discharged to the outside through multiple one-way valves 9, thereby achieving the effect of heat dissipation on the connecting end, which can effectively reduce the risk of accelerated aging of the connecting end due to high temperature.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lightning protection grounding connector, comprising a first clamping block (3), a second clamping block (10) being arranged at the rear side of the first clamping block (3), and a side where the first clamping block (3) and the second clamping block (10) are close to each other being both arranged as an arc structure, characterized in that: The first clamping block (3) and the second clamping block (10) are sleeved with a same protective tube (1); a mounting block (2) is fixedly mounted on the front inner wall of the protective tube (1); the rear side of the mounting block (2) is fixedly connected to the front side of the first clamping block (3); the first clamping block (3), the mounting block (2) and the protective tube (1) are provided with a same connecting air blowing mechanism; a cooling fan (8) is embedded and fixed on the front side of the protective tube (1); the bottom of the cooling fan (8) is fixed and electrically connected to a time-controlled switch; the rear side of the cooling fan (8) is a discharge end and is connected to the inside of the connecting air blowing mechanism; a left inner wall of the protective tube (1) is opened. A plurality of vent holes are provided, and a one-way valve (9) with an outlet on the left side is fixedly sleeved in the vent hole. The rear side of the first clamping block (3) is fixedly connected to two symmetrically arranged L-shaped guide rods (11), and the second clamping block (10) is slidably sleeved on the two L-shaped guide rods (11). The rear side of the second clamping block (10) is fixedly connected to an elastic pressure detection mechanism, and the rear side of the elastic pressure detection mechanism is fixedly connected to a threaded drive mechanism. The rear side of the threaded drive mechanism extends to the rear side of the protective tube (1). The rear side of the protective tube (1) is embedded and fixed with an alarm light (17), and the alarm light (17) is electrically connected to the elastic pressure detection mechanism.

2. A lightning protection grounding connector according to claim 1, characterized in that: The connecting and blowing mechanism comprises a connecting groove (4) provided on the front side of the first clamping block (3); a plurality of blowing holes (5) are provided on the inner wall of the rear side of the connecting groove (4); a connecting pipe (6) is embedded and fixed on the rear side of the mounting block (2); the rear end of the connecting pipe (6) extends into the connecting groove (4); a connecting cavity (7) is provided on the protective tube (1); the front end of the connecting pipe (6) is connected to the rear side of the connecting cavity (7); and the rear side of the cooling fan (8) extends into the connecting cavity (7).

3. A lightning protection grounding connector according to claim 2, characterized in that: The elastic pressure detection mechanism comprises a moving rod (12) slidably mounted on two L-shaped guide rods (11); a pressure sensor (13) is embedded and fixed on the front side of the moving rod (12); the front side of the pressure sensor (13) is a detection end and is fixedly connected to a connecting plate; a plurality of springs (14) are fixedly connected between the front side of the connecting plate and the rear side of the second clamping block (10); a controller is built into the alarm light (17); and the pressure sensor (13) is electrically connected to the controller.

4. A lightning protection grounding connector according to claim 3, characterized in that: The threaded drive mechanism comprises a rectangular rod (15) fixedly connected to the rear side of the moving rod (12); a rectangular hole (18) is opened on the inner wall of the rear side of the protective tube (1); the rectangular rod (15) is slidably sleeved in the rectangular hole (18); a screw rod (16) is rotatably installed in the rectangular hole (18); the rectangular rod (15) is threadedly sleeved on the screw rod (16); and a knob is fixedly connected to the rear end of the screw rod (16).

5. A lightning protection grounding connector according to claim 2, characterized in that: The first clamping block (3) and the second clamping block (10) are both bonded and fixed with anti-skid rubber on one side close to each other, and the anti-skid rubber on the front side is provided with a plurality of connecting holes on the rear side, and the connecting holes are connected with the corresponding blowing holes (5).

6. A lightning protection grounding connector according to claim 4, characterized in that: A bearing is fixedly connected between the inner walls of both sides of the rectangular hole (18), the inner side of the inner ring of the bearing is fixedly connected to the outer side of the screw rod (16), and a threaded hole is formed at the rear end of the rectangular rod (15), which is threadedly connected to the screw rod (16).

7. A lightning protection grounding connector according to claim 1, characterized in that: A rubber pad (19) is bonded and installed on the top end of the protection tube (1), and a cross-shaped through hole (1901) is opened on the rubber pad (19).

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