Explosion-proof lightning arrester

Abstract

The utility model relates to the technical field of power equipment, and discloses an explosion-proof lightning arrester. The anti-explosion lightning arrester comprises a lightning arrester body, a connecting seat, a copper core, a plurality of resistor discs, an air outlet pipe, a first limiting frame, an air blocking plate and a first elastic piece, the lightning arrester body is fixedly connected with the connecting seat, the copper core is arranged in the lightning arrester body, and the plurality of resistor discs are arranged in the lightning arrester body. The upper end and the lower end of the lightning arrester body are each provided with two connected and communicated air outlet pipes, first limiting frames are fixedly connected into the air outlet pipes, air blocking plates are arranged on the first limiting frames in a sliding mode, and first elastic pieces are arranged on the air blocking plates in a sleeving mode. Air flow in the lightning arrester body extrudes the air blocking plates to move towards the sides far away from each other to open the air outlet pipe, the air flow in the lightning arrester body is discharged through the air outlet pipe, so that pressure in the lightning arrester body is relieved, and explosion occurs due to the fact that the air pressure in the lightning arrester body is too high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment and discloses an explosion-proof lightning arrester. Background Art

[0002] A lightning arrester is a device used to protect electrical equipment from high transient overvoltages generated during lightning or power system operation. The main function of a lightning arrester is to limit the invading overvoltage wave to a certain range through a parallel discharge gap or nonlinear resistor, thereby protecting the insulation of electrical equipment. Lightning arresters are usually connected between the grid conductor and the ground wire, and sometimes also connected next to the electrical winding or between the conductors. Lightning arresters can quickly respond to overvoltages and direct them to the ground, thereby protecting equipment from breakdown by high voltage.

[0003] The patent authorization publication number is CN219349898U, which discloses a lightning arrester, including a first end fitting, a second end fitting, an insulating tube and an insulating umbrella sleeve, the top of the insulation tube is connected to the first end fitting, the bottom of the insulating tube is connected to the second end fitting, the insulating umbrella sleeve covers the radial outer surface of the first end fitting, the second end fitting and the insulating tube, and a radial arc groove is arranged on the side of the insulating tube close to the insulating umbrella sleeve. Although the above patent improves the production efficiency of the lightning arrester without reducing the mechanical strength of the lightning arrester by tightly connecting the insulating umbrella sleeve, the insulating tube and the first end fitting together, when a short circuit occurs, the air pressure inside the insulating tube increases. If the insulating tube is not depressurized in time, the air pressure inside the insulating tube will explode after reaching a certain value, thereby damaging the electrical equipment.

[0004] Therefore, a kind of explosion-proof lightning arrester is needed. Utility Model Content

[0005] In order to overcome the disadvantage of the prior art that when a short circuit occurs, the air pressure inside the insulating cylinder increases. If the insulating cylinder is not depressurized in time, the pressure inside the insulating cylinder will reach a certain value and explode, thereby damaging the electrical equipment, the utility model provides an explosion-proof lightning arrester.

[0006] The utility model provides the following technical solutions: an explosion-proof lightning arrester, comprising an arrester body, a connecting seat, a copper core, a resistor, an outer shell and a fastening nut, the arrester body is fixedly connected with the connecting seat, the arrester body is provided with a copper core, the arrester body is provided with a plurality of resistors, the outer shell is provided on the outside of the arrester body, the arrester body is threadedly provided with fastening nuts at both upper and lower ends, and also comprises an air outlet pipe, a first limiting frame, an air blocking plate and a first elastic member, the upper and lower ends of the arrester body are connected and connected with two air outlet pipes, the air outlet pipe is fixedly connected with the first limiting frame, the first limiting frame is slidably provided with an air blocking plate, and the first elastic member is sleeved on the air blocking plate.

[0007] Furthermore, it also includes a trigger button, a lampshade and an LED light board. The upper and lower ends of the lightning arrester body are both slidably provided with trigger buttons, the upper and lower ends of the lightning arrester body are both provided with lampshades, the LED light board is provided inside the lampshade, and the trigger button is electrically connected to the LED light board.

[0008] Furthermore, it also includes a pressure rod, a clamping plate, a second limiting frame and a second elastic member. The pressure rod is threadedly arranged on the connecting seat, and two second limiting frames are fixedly connected inside the connecting seat. The second limiting frame is slidably provided with a clamping plate, and the second elastic member is sleeved on the clamping plate.

[0009] Furthermore, the invention also comprises a protective cover, and the lampshade is provided with the protective cover.

[0010] Furthermore, it also includes a rubber sleeve, and the top of the pressure rod is sleeved with the rubber sleeve.

[0011] Furthermore, it also includes a sealing ring, and two sealing rings are arranged inside the arrester body.

[0012] Compared with the prior art, the utility model provides an explosion-proof lightning arrester, which has the following beneficial effects:

[0013] 1. The airflow passing through the arrester body will squeeze the air blocking plate to move away from each other to open the air outlet pipe. The airflow inside the arrester body will be discharged through the air outlet pipe, thereby relieving the pressure inside the arrester body. The air pressure inside the arrester body is too high and an explosion will occur.

[0014] 2. When the fastening nut becomes loose, the trigger button will move upward, triggering the LED light panel to light up, thereby attracting the attention of the staff and tightening the fastening nut in time.

[0015] 3. By rotating the pressure rod to squeeze the card plate to move away from each other, the card plate is engaged with the mounting seat, and then the connecting seat is fixed to the mounting seat, thereby replacing the use of bolts to achieve the purpose of fast fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the fastening nut, the air outlet pipe and the connecting seat of the utility model.

[0018] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the air outlet pipe, the air blocking plate and the first limiting frame of the utility model.

[0019] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the trigger button, lampshade and LED lamp panel of the utility model.

[0020] Figure 5 The utility model is a three-dimensional cross-sectional structural schematic diagram of the rubber sleeve, the pressure rod and the clamping plate.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the second limiting frame and the clamping plate of the utility model.

[0022] In the above drawings: 1: lightning arrester body, 101: connecting seat, 2: copper core, 3: resistor, 4: outer shell, 5: fastening nut, 6: air outlet pipe, 7: first limit frame, 8: air blocking plate, 9: first elastic member, 10: trigger button, 11: lampshade, 12: LED light board, 13: pressure rod, 14: card board, 15: second limit frame, 16: second elastic member, 17: protective cover, 18: rubber cover, 19: sealing ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0024] Example 1: An explosion-proof lightning arrester, see Figure 1-Figure 5 , including a lightning arrester body 1, a connecting seat 101, a copper core 2, a resistor 3, an outer shell 4 and a fastening nut 5. The lightning arrester body 1 is provided with a connecting seat 101 by welding, the lightning arrester body 1 is provided with a copper core 2, the lightning arrester body 1 is provided with a plurality of resistors 3, the outer shell 4 is provided on the outside of the lightning arrester body 1, and the outer shell 4 is made of insulating material to avoid leakage. The upper and lower ends of the lightning arrester body 1 are both threadedly provided with fastening nuts 5, and the upper and lower ends of the lightning arrester body 1 are connected and connected. There are two air outlet pipes 6, and a first limit frame 7 is arranged inside the air outlet pipe 6 by welding. A baffle plate 8 is slidably arranged on the first limit frame 7. The baffle plate 8 is made of rubber material. The rubber has good wear resistance and corrosion resistance, which prolongs the service life of the baffle plate 8. A first elastic member 9 is sleeved on the baffle plate 8. The two ends of the first elastic member 9 are respectively connected to the first limit frame 7 and the baffle plate 8. Two sealing rings 19 are arranged inside the arrester body 1. The sealing rings 19 increase the air tightness of the arrester body 1 to prevent the arrester body 1 from getting damp.

[0025] When the arrester is needed, first move the arrester body 1 to a suitable position, then dock the connection base 101 with the mounting base, insert the bolt into the connection base 101, use a tool to tighten the bolt, fix the arrester body 1 on the mounting base, turn the fastening nut 5 to make it disengage from the arrester body 1, then place the wire on the upper end of the arrester body 1, place the ground wire on the lower end of the arrester body 1, and then tighten the fastening nut 5 to connect the arrester body 1 to the electrical equipment. When encountering high transient overvoltage generated by lightning or power system operation, the arrester body 1 will guide the current to the ground, thereby achieving The air pressure inside the arrester body 1 will increase, and the air flow inside the arrester body 1 will squeeze the air blocking plate 8 to move to the side away from each other to open the air outlet pipe 6. The first elastic member 9 will be compressed accordingly, and the air flow inside the arrester body 1 will be discharged through the air outlet pipe 6, thereby relieving the pressure inside the arrester body. The pressure inside the arrester body 1 is too high and an explosion occurs. When the air flow inside the arrester body 1 no longer squeezes the air blocking plate 8, the first elastic member 9 returns to its original state, moves the air blocking plate 8 to the side close to each other, and closes the air outlet pipe 6.

[0026] Example 2: Based on Example 1, please refer to Figure 1 and Figure 4 The upper and lower ends of the arrester body 1 are both slidably provided with trigger buttons 10, the upper and lower ends of the arrester body 1 are both provided with lampshades 11, an LED light board 12 is provided inside the lampshade 11, the trigger button 10 is electrically connected to the LED light board 12, and a protective cover 17 is provided on the lampshade 11. When the arrester body 1 is installed, the protective cover 17 protects the lampshade 11 to prevent the lampshade 11 from being scratched by friction. After the arrester body 1 is installed, the protective cover 17 is removed.

[0027] When the fastening nut 5 becomes loose, the trigger button 10 will move upward, thereby triggering the LED light board 12 to light up, thereby attracting the attention of the staff to tighten the fastening nut 5 in time. After the fastening nut 5 is tightened, the fastening nut 5 squeezes the trigger button 10 to move downward, thereby turning off the LED light board 12.

[0028] See also Figure 1 , Figure 5 and Figure 6A pressure rod 13 is threadedly arranged on the connecting seat 101, and two second limit frames 15 are welded inside the connecting seat 101. A card plate 14 is slidably arranged on the second limit frame 15. The contact surface between the pressure rod 13 and the card plate 14 is an inclined surface. Turning the pressure rod 13 downward can squeeze the card plate 14 to move away from each other. A second elastic member 16 is sleeved on the card plate 14, and the two ends of the second elastic member 16 are respectively connected to the second limit frame 15 and the card plate 14. A rubber sleeve 18 is sleeved on the top of the pressure rod 13. The rubber sleeve 18 reduces the pressure between the hand and the pressure rod 13 and increases the comfort of the hand.

[0029] When installing the arrester body 1, after docking the connecting seat 101 with the mounting seat, turn the pressure rod 13 downward to squeeze the clamping plate 14 to move away from each other, so that the clamping plate 14 is clamped with the mounting seat, and then fix the connecting seat 101 on the mounting seat, thereby replacing the use of bolts to fix it, thereby achieving the purpose of facilitating and quick fixing.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof lightning arrester, comprising a lightning arrester body (1), a connecting seat (101), a copper core (2), a resistor (3), an outer shell (4) and a fastening nut (5), wherein the lightning arrester body (1) is fixedly connected with the connecting seat (101), the lightning arrester body (1) is provided with a copper core (2), the lightning arrester body (1) is provided with a plurality of resistors (3), the outer shell (4) is provided on the outside of the lightning arrester body (1), and the upper and lower ends of the lightning arrester body (1) are both threadedly provided with fastening nuts (5), characterized in that: It also includes an air outlet pipe (6), a first limiting frame (7), an air blocking plate (8) and a first elastic member (9); the upper and lower ends of the lightning arrester body (1) are both connected and communicate with two air outlet pipes (6); the air outlet pipe (6) is fixedly connected with the first limiting frame (7); the air blocking plate (8) is slidably arranged on the first limiting frame (7); and the air blocking plate (8) is sleeved with the first elastic member (9).

2. An explosion-proof lightning arrester according to claim 1, characterized in that: The device also comprises a trigger button (10), a lampshade (11) and an LED light board (12); the trigger button (10) is slidably arranged at both upper and lower ends of the arrester body (1); the lampshade (11) is arranged at both upper and lower ends of the arrester body (1); the LED light board (12) is arranged inside the lampshade (11); and the trigger button (10) is electrically connected to the LED light board (12).

3. An explosion-proof lightning arrester according to claim 1, characterized in that: The invention also comprises a pressure rod (13), a clamping plate (14), a second limiting frame (15) and a second elastic member (16); the pressure rod (13) is threadedly arranged on the connecting seat (101); two second limiting frames (15) are fixedly connected inside the connecting seat (101); a clamping plate (14) is slidably arranged on the second limiting frame (15); and the second elastic member (16) is sleeved on the clamping plate (14).

4. An explosion-proof lightning arrester as claimed in claim 2, characterized in that: It also includes a protective sleeve (17), and the lampshade (11) is sleeved with the protective sleeve (17).

5. An explosion-proof lightning arrester as claimed in claim 3, characterized in that: It also includes a rubber sleeve (18), and the top of the pressure rod (13) is sleeved with the rubber sleeve (18).

6. An explosion-proof lightning arrester according to claim 1, characterized in that: It also includes a sealing ring (19), and two sealing rings (19) are arranged inside the arrester body (1).

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