Double-turntable spring type arc extinguishing lightning protection device

A lightning protection device and spring-type technology, which is applied to overvoltage arresters, electrical components, spark gaps, etc., which use spark gaps, can solve problems affecting arc extinguishing, large friction between arc extinguishing cylinders and gas pill disks, etc., and achieve Increased loading capacity, low cost, and easy to achieve effects

Inactive Publication Date: 2019-12-17
南宁超伏电气科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

For example, a Chinese patent, the patent name is: a double-disk spare side spray arc extinguishing lightning protection device, the application number is: 201821264908.3, which discloses a spherical bomb storage bin and a cylindrical arc extinguishing cylinder; the spherical bomb storage The interior of the warehouse is hollow and the bottom is provided with an air pill trigger position, and a cylindrical arc extinguisher is installed below the air pill trigger position; the spherical magazine is equipped with a left arc extinguishing plate, a right arc extinguishing plate, an arc striking rod, Tec...
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Abstract

The invention discloses a double-turntable spring type arc extinguishing lightning protection device. The arc extinguishing lightning protection device comprises an arc extinguishing lightning protection shell, an arc extinguishing cylinder, a turntable A, a turntable B and a driving switching device, wherein a rotatable central shaft is horizontally arranged in the arc extinguishing lightning protection shell; the turntable A and the turntable B are arranged on the central shaft in a sliding manner; a plurality of placing grooves for placing air pills in the radial direction are uniformly formed in the circumferential side walls of the turntable A and the turntable B; the arc extinguishing cylinder is in contact with the placement groove in the turntable A or the turntable B; a supportingpoint is arranged at the top end of the inner side wall of the arc extinguishing lightning protection shell close to one side of the turntable B; volute spiral springs are arranged in the centers ofthe interiors of the turntable A and the turntable B respectively; and the driving switching device is in transmission connection with the turntable A and the turntable B respectively. Thud, dislocation movement of the arc extinguishing cylinder in the turntable switching process is avoided, and the reliability of double-turntable switching is improved.

Application Domain

Spark gap detailsOvervoltage arrestors using spark gaps

Technology Topic

DislocationLightning

Image

  • Double-turntable spring type arc extinguishing lightning protection device
  • Double-turntable spring type arc extinguishing lightning protection device
  • Double-turntable spring type arc extinguishing lightning protection device

Examples

  • Experimental program(3)

Example Embodiment

[0026] Example 1:
[0027] like figure 1 , figure 2 , image 3 and Figure 4As shown in the figure, according to a double-disc clockwork arc extinguishing and lightning protection device of the present invention, the arc extinguishing and lightning protection device comprises an arc extinguishing and lightning protection shell 1, an arc extinguishing cylinder 2, an A turntable 3 and a B turntable 4 and a drive Switching device 5, a rotatable central shaft 10 is horizontally arranged in the arc extinguishing and lightning protection housing 1, the A turntable 3 and the B turntable 4 are slidably arranged on the central shaft 10, and the A turntable 3 and the B turntable are slidably arranged on the central shaft 10. The circumferential side wall of 4 is evenly provided with a plurality of placement slots 30 for placing gas pellets along the radial direction, and a gas pellet trigger position is set on the lower side wall of the arc extinguishing and lightning protection shell 1. The arc extinguishing The cylinder 2 is arranged on the gas pill triggering position under the arc extinguishing and lightning protection shell 1. The arc extinguishing cylinder 2 penetrates from the gas pill triggering position and is in contact with the placement groove 30 on the A turntable 3 or the B turntable 4. A supporting point 11 is provided on the top of the inner side wall of the arc extinguishing and lightning protection housing 1 on the side of the turntable 4 , and one end of the drive switching device 5 is rotatably connected to the top of the inner side wall of the arc extinguishing and lightning protection housing 1 through the supporting point 11 . , one end of the drive switching device 5 is rotatably connected to the inner wall of the arc extinguishing and lightning protection housing 1, and the other end of the drive switching device 5 is respectively connected to the A turntable 3 and the B turntable 4 in a transmission connection; A sleeve 300 and a B sleeve 400 are respectively fixed and sleeved on the shaft 10, and the A turntable 3 is slidably arranged on the A sleeve 300, and the B turntable 4 is slidably arranged on the B sleeve 400. The A turntable 3 passes through the A sleeve. The sleeve 300 is sleeved on the central shaft 10, the B turntable 4 is sleeved on the central shaft 10 through the B sleeve 400, and the same spiral slide is provided on the outer wall of the A sleeve 300 and the outer wall of the B sleeve 400. The rail 301 and the spiral slide rail 401, the A turntable 3 is sleeved on the outer wall of the A sleeve 300 through the spiral slide rail 301, and the B turntable 4 is sleeved on the B sleeve 400 through the spiral slide rail 401. The A turntable 3 and the B turntable 4 are of the same size, and the A turntable 3 and the B turntable 4 are rotatably installed in the arc extinguishing and lightning protection housing 1 through the horizontally arranged central axis 10. There are also two fixed rods 13 on the inner wall of the lightning protection shell 1, the two fixed rods 13 are respectively located above the helical slide rail 301 and the helical slide rail 401, and the ends of the two fixed rods 13 are respectively inserted into In the helical slide rail 301 and the helical slide rail 401, a scroll spring 12 is provided at the inner center position of the A turntable 3 and the B turntable 4, respectively. The scroll spring 12 is a flat scroll spring 12, and the A turntable 3 and B turntable 4 are respectively sleeved on the central shaft 10 through a scroll spring 12, and a plane scroll spring 12 that pushes the A turntable 3 and B turntable 4 to rotate is provided at the central position of the A turntable 3 and the B turntable 4 respectively, and the scroll The whole of the spring 12 is embedded and sleeved at the center of the A turntable 3 and the B turntable 4 respectively. One end of the scroll spring 12 in each disc is inserted into the disc surface connected to the outer edge of the center of the respective turntable. The other end is connected with the central shaft 10, and the arc extinguishing cylinder 2 is successfully dislocated from the A turntable 3 or the B turntable 4, so that the A turntable 3 or the B turntable 4 can be rotated under the action of the plane scroll spring 12, until the next round in the turntable. put The arc-extinguishing gas pellet in the setting slot 30 enters the gas pellet triggering position. Since the fixed rod 13 is fixed on the arc-extinguishing and lightning protection housing 1, the spiral slide rail is a groove-shaped slide rail. The A turntable 3 and the B turntable 4. Driven internally by the elastic force of the flat scroll spring 12, the two turntables can rotate around the central axis 10. The fixed rods 13 on the lightning protection shell 1 and the groove walls at both ends of the helical slide rail have a A squeeze action, and the spiral slide rail is integrally connected with the corresponding turntable, which can provide a forward thrust along the direction of the central axis 10 for the corresponding turntable; make the A turntable 3 and the B turntable 4 support and cooperate to set the center On the shaft 10, under the elastic driving action of the plane scroll spring 12 and the resultant force of the forward driving force of the fixed rod 13, it can be ensured that when the A turntable 3 and the B turntable 4 are driven to rotate, the fixed rod 13 and the helical slide are connected. The rails cooperate with each other to drive the arc-extinguishing turntable to move forward along the central axis, and the fixed rod 13 can ensure the positioning of the A turntable 3 and the B turntable 4 to slide and rotate forward in a spiral shape. Under the cooperation of the drive switching device 5 , the arc extinguishing cylinder 2 and the placement slot 30 are again locked in position. And the B turntable 4 rotates along the central axis 10, and after the arc-extinguishing gas pellet in the placement slot 30 of the last shot of the A turntable 3 is triggered and completed, the A turntable 3 follows the spiral slide rail 301 and the B turntable 4 along the spiral shape. The slide rail 401 slides forward synchronously, so that the B turntable and the arc extinguishing cylinder 2 are locked and triggered.
[0028] In the present invention, the combination figure 1 As shown, the drive switching device 5 includes an L-shaped rotating rod 50, a cap 51, a clamping sheath 52, a clamping point 53 and a compression spring 54 arranged on the L-shaped rotating rod 50, and the L-shaped rotating rod 50 is arranged horizontally Below the inner wall of the top end of the arc extinguishing and lightning protection shell 1, and the long side end of the L-shaped rotating rod 50 is rotatably connected to the top end of the inner wall of the arc extinguishing and lightning protection shell 1 through the support point 11. A compression spring 54 is arranged at the short side end of the rotating rod 50, and the short side end of the L-shaped rotating rod 50 is arranged horizontally on the disk surface of the A turntable 3 through the compression spring 54 and the sleeve cap 51 in turn, and is far away from the B. On the side of the turntable 4, the short side end of the L-shaped turning rod 50 is connected to the disk surface of the A turntable 3 and the side away from the B turntable 4 through the compression spring 54 and the cap 51 in turn. A card slot 40 is provided on the circumferential side wall of the B turntable 4, and the card slot 40 is set near the placement slot 30 for placing the gas pill that is first triggered on the B turntable 4. It protrudes downward and is in driving connection with the card slot 40 on the B turntable 4. The card point 53 extends downward from the L-shaped turning rod 50 and is in close contact with the edge of the disk surface of the A turntable 3 and is close to the cap 51. On the side, the rigid clip sheath 52 on the L-shaped rotating rod 50 is inserted into the clip slot 40 of the B-turntable 4 .
[0029] In the present invention, the combination figure 1 , Figure 5 and Figure 7 , an annular convex rail 31 is provided on the edge of the disk surface of the A turntable 3 and away from the B turntable 4, and the short side end of the L-shaped turning rod 50 passes through the compression spring 54, the cap 51 and the A turntable in turn. The annular convex rail 31 provided on the 3 is in a transmission connection, that is, the sleeve cap 51 is located in front of the annular convex rail 31 on the A turntable 3, and the sleeve cap 51 is nested on the annular raised rail 31 of the A turntable 3, wherein the L-shaped turntable 31. The rod 50 is a rigid material, and the long side of the L-shaped rotating rod 50 is rotatably connected to the inner wall of the arc extinguishing and lightning protection shell 1 through the support point 11. The L-shaped rotating rod can rotate with the support point 11 as the center of the circle. The L-shaped rotating rod The middle part of 50 is drivingly connected with the card slot 40 on the B turntable 4, and the card point 53 is in close contact between the edge of the disk surface of the A turntable 3 and the annular convex rail 31, at the edge of the disk surface of the A turntable 3 A triangular inclined surface 32 is arranged between the annular convex rail 31 , and the triangular inclined surface 32 is inclined to the side wall of the circumference of the A turntable 3 along the annular convex rail 31 . In close contact, the triangular inclined surface 32 is arranged near the placement groove 30 for placing the gas pellets that is finally triggered on the A turntable 3; a convex point 33 is provided on the annular convex rail 31, and the convex point 33 is disposed close to the Near the placement slot 30 for placing air pills that was triggered last on the A turntable 3, when the last air pellet in the placement slot 30 of the A turntable 3 is triggered, the bump 33 and the cap 51 are in contact with each other, The cap 51 and the annular convex rail 31 are separated from each other, that is, a triangular inclined surface 32 is provided at the left edge of the A turntable 3, and the triangular inclined surface 32 on the left side of the A turntable 3 and the convex point 33 of the annular convex rail 31 are provided. , The center of the A turntable 3 is on the same straight line, and is fixed on the L-shaped turning rod 50 through one end of the card point 53, and is located above the triangular inclined surface 32, and the position of the triangular inclined surface 32 is the last shot of the A turntable 3. The gas pill is located at the placement slot 30 of the last gas pill; when the gas pills in the A turntable 3 are triggered in turn, they rotate along the central axis 10. Triggered in sequence, the arc-extinguishing gas pellet generates solid-phase airflow, and the solid-phase airflow acts on the arc through the arc extinguishing cylinder 2; The convex point 33 pushes up the elastic sleeve cap 51 above it (front), the sleeve cap 51 and the annular convex rail 31 are separated from each other, and at the same time, the triangular inclined surface 32 on the A turntable 3 squeezes (pushes) the L-shaped turning rod 50 upward. At this time, the clamping sheath 52 and the clamping slot 40 are separated from each other, and the scroll spring 12 (spring) inside the B turntable 4 is released. Under the action of the scroll spring 12 (spring) and the annular convex rail 31, the A turntable 3 moves to the left along the spiral slide rail 301 to leave the working position, and the B turntable 4 moves to the left along the spiral slide rail 401 to the work position. Then the air pills on the B turntable 4 are triggered in turn, and under the elastic force of the compression spring 54, the sleeve cap 51 is in close contact with the convex point 33 in the annular convex rail 31, so that the A turntable 3 is in the position of the sleeve cap 51. Position with support.

Example Embodiment

[0030] Embodiment 2:
[0031] The difference between the second embodiment and the first embodiment is that only the B sleeve 400 is fixedly sleeved on the central shaft 10, such as Figure 4 As shown, the A turntable 3 is directly slidably arranged on the central shaft 10, the helical slide rail 301 may or may not be directly provided on the central shaft 10, the B turntable 4 is slidably arranged on the B sleeve 400, and the B turntable 4. The central shaft 10 is sleeved through the B sleeve 400, a spiral slide rail 401 is set on the outer wall of the B sleeve 400, and the B turntable 4 is sleeved on the outer wall of the B sleeve 400 through the spiral slide rail 401. , when rotating with the central axis 10 along the B turntable 4 and can slide along the helical slide rail 401, the peripheral circumferences of the A turntable 3 and B turntable 4 are on the same horizontal line and the outer diameters of the two discs are the same, and A The turntable 3 and the B turntable 4 are rotatably installed in the arc extinguishing and lightning protection housing 1 through the horizontally arranged central axis 10. When the gas pellets in the A turntable 3 are triggered in sequence, they rotate along the central axis 10, and the arc extinguishing occurs. There is also a fixed rod 13 on the inner wall of the lightning protection shell 1, the fixed rod 13 is located above the right side of the B turntable, that is, the fixed rod 13 is located above the spiral slide rail 401, and the end of the fixed rod 13 is inserted To the spiral slide rail 401, the fixed rod 13 can ensure the positioning of the A turntable 3 and the B turntable 4 to slide forward and rotate forward in a spiral shape. Triggered, the gas pellet generates solid-phase airflow, and the solid-phase airflow acts on the arc through the arc extinguishing cylinder 2; when the gas pellet in the last placement slot 30 in the A turntable 3 is triggered, the convex point 33 on the annular convex rail 31 The upper (or front) elastic cap 51 is lifted up, and the cap 51 and the annular convex rail 31 are separated from each other. 53. The long side of the L-shaped rotating rod 50 is lifted, at this time, the clip sheath 52 and the clip groove 40 are separated from each other, and the scroll spring 12 (spring) inside the B turntable 4 is released. The helical slide rail 401 is only provided on the right side of the B turntable 3. When the scroll spring 12 (spring) inside the B turntable 4 is released, the force of the scroll spring 12 (spring) will interact with the B turntable 4. Under the double action of the extrusion thrust of the spiral slide rail 401 on the right side, the two turntables slide (move) to the left at the same time, the A turntable 3 is pushed away from the working position, and the B turntable 4 slides to the left (moves to the left) to the working position, Next, the air pills on the B turntable 4 are sequentially triggered.

Example Embodiment

[0032] Embodiment three:
[0033] The difference between the third embodiment and the first embodiment is that in the present invention, the combination figure 1 , Image 6 and Figure 8 , replace the annular convex rail 31 with the convex ring 302, and set the convex ring 302 on the edge of the disk surface of the A turntable 3 and away from the B turntable 4, that is, set the convex ring 302 on the left edge of the A turntable 3. ring 302, the convex ring 302 is rigid or elastic, and the short side end of the L-shaped rotating rod 50 is connected to the convex ring 302 provided on the A turntable 3 through a compression spring 54 and a cap 51 in sequence; The convex ring 302 is provided with a concave point 303, and the concave point 303 is disposed near the placement groove 30 for placing air pills that was triggered last on the A turntable 3. When the last air in the placement groove 30 of the A turntable 3 After the pill is triggered, the concave point 303 and the sleeve cap 51 are in contact with each other, and the sleeve cap 51 and the convex ring 302 are separated from each other. Under the elastic force of the compression spring 54, the concave point in the sleeve cap 51 and the convex ring 302 300 is in close contact, the triangular inclined surface 32 is arranged near the placement groove 30 for placing the air pill that is finally triggered on the A turntable 3, and the triangular inclined surface 32, the concave point 303 and the center of the A turntable 3 are on the same straight line. superior.
[0034] combine figure 1 , figure 2 , image 3 , Figure 5 and Figure 7, the arc extinguishing working process of the present invention is further described. First, a gas pill triggering position is set on the lower side wall of the arc extinguishing lightning protection shell 1, and the arc extinguishing cylinder 2 penetrates from the gas pill trigger position and is connected with the A turntable. The placement groove 30 on the circumferential side wall of 3 contacts, when the arc extinguishing gas pill is in the gas pill triggering position, the drive switching device 5 and the scroll spring 12 are respectively stuck on the A turntable 3 and the B turntable 4 until When the arc-extinguishing gas pill is triggered in the placement tank 30, the arc-extinguishing gas pill is triggered to generate a strong solid-phase airflow, so that the solid-phase airflow acts on the arc through the arc-extinguishing cylinder 2; when the arc-extinguishing gas pill is triggered, the solid-phase airflow The generated force makes the convex point 33 on the annular convex rail 31 push up the elastic sleeve cap 51 above it, the sleeve cap 51 and the annular convex rail 31 are separated from each other, and the triangular inclined surface 32 on the A turntable 3 presses L upwards. The clamping point 53 on the shaped rotating rod 50, the clamping point 53 and the triangular slope 32 are separated from each other, the long side of the L-shaped rotating rod 50 is lifted, at this time, the clamping sheath 52 and the clamping groove 40 are separated from each other, and the placement groove 30 After the arc air pill is triggered, the strong solid-phase air flow is generated to push the A turntable 3 or the B turntable 4 to rotate along the central axis 10. Under the action of the scroll spring 12 (spring) and the annular convex rail 31, the A turntable 3 moves leftward along the helical slide rail 301 to leave the working position, and drives the B turntable 4 to move leftward along the helical slide rail 401 to the working position. , and then the air pills on the B turntable 4 are triggered in turn.

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