A gapped AC surge arrester

Abstract

The present invention relates to the field of lightning arresters, and specifically to an AC lightning arrester with a gap, comprising an arrester body and a pressure column, wherein a stainless steel drainage ring is installed on the pressure column, and the arrester body is installed with a chamber provided inside the support seat for the pressure column to slide up and down, and through the cooperation between a pressure plate, a first spring, a right-angle baffle, a clamping mechanism, an extrusion mechanism and a limiting mechanism, when installing the stainless steel drainage ring, the pressure column is fully inserted into the interior of the support seat and then the pressure plate is pressed down to fix the stainless steel drainage ring, and when disassembling the stainless steel drainage ring, the stainless steel drainage ring can be released by pressing the pressure plate to the maximum extent, and then the stainless steel drainage ring can be removed, and the whole disassembly and assembly process only requires the staff to operate with one hand, and the other hand can grasp an external object to stabilize their body, thereby not only improving the convenience of operation of the staff, but also improving the safety of operation.

Description

Technical Field

[0001] The invention relates to the technical field of lightning arresters, and in particular to an AC lightning arrester with a gap. Background Art

[0002] The gap AC lightning arrester includes the lightning arrester body (current limiting element), the drainage ring and the connecting parts. It is connected in parallel with the insulator when in use. When the power supply system is working normally, due to the certain gap between the drainage ring and the high-voltage wire, the lightning arrester body works normally without power consumption and current generation, thereby greatly improving the service life. When direct lightning or induced lightning acts on the high-voltage wire, it is introduced into the lightning arrester body through the drainage ring, and the excess charge is quickly filtered out, and the power frequency continuous current is cut off, and the energy is released instantly, which plays a role in protecting the electrical appliances, thereby avoiding the flashover or breakdown of the insulator, the burning of the high-voltage wire and the frequent tripping of the power supply system, so as to ensure the normal operation of the line.

[0003] The disclosure discloses an AC lightning arrester with a discharge gap, which includes a lightning arrester body, a square sleeve, a stainless steel drainage ring and a fixed block. The square sleeve is fixedly connected to the top of the lightning arrester body, the stainless steel drainage ring is fixedly connected to the side wall of the fixed block, the bottom of the fixed block is fixedly connected to a limit block, the bottom of the limit block is fixedly connected to a clamping column, the square sleeve is provided with a square groove, and the side wall of the square sleeve is provided with a clamping mechanism corresponding to the limit block. The AC lightning arrester with a discharge gap realizes that when the stainless steel drainage ring is installed on the lightning arrester body, since the clamping column is set to be square, the clamping column will not rotate when inserted into the square sleeve, that is, the installation angle is positioned, and the setting of the clamping mechanism can save the time of replacing the stainless steel drainage ring for the staff, and the operation is simple and convenient, and the clamping effect is good.

[0004] When the above device is disassembling and assembling the stainless steel drainage ring, one hand is required to press the pressure plate and the other hand to operate the limit block. The lightning arrester is often installed at a high place. When the staff are performing high-altitude operations, they usually need to use one hand to grab an external object to stabilize their body. Therefore, the above scheme uses two hands to disassemble and assemble the stainless steel drainage ring, which not only reduces the convenience of the staff's operation, but also affects the safety during the operation.

[0005] Therefore, the present invention provides an AC lightning arrester with a gap to solve the above problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an AC lightning arrester with a gap to solve the problem that when the above device is used to disassemble and assemble the stainless steel drainage ring, two hands are required to operate, which not only reduces the operating convenience of the staff, but also affects the safety during operation.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] An AC lightning arrester with a gap comprises a lightning arrester body and a pressure column, a stainless steel drainage ring is installed on the pressure column, a support seat is installed on the lightning arrester body, a chamber for the pressure column to slide up and down is opened inside the support seat, a first spring is fixedly connected inside the chamber, a pressure plate is fixedly connected to the other end of the first spring, the bottom end of the pressure column is pressed on the upper surface of the pressure plate, and two symmetrical reinforcement mechanisms are arranged above the support seat;

[0009] The support seat is provided with a clamping mechanism for limiting the U-shaped connecting plate inside, and the clamping mechanism includes two right-angle limiting plates located on the upper surface of the support seat, and the bottom surfaces of the two right-angle limiting plates are fixedly connected to movable plates, and the two movable plates are horizontally slidably connected to the inside of the support seat, and an extrusion mechanism is provided below the pressure plate, and the two sides of the support seat are fixedly connected to the first shells, and the limiting mechanisms are provided inside the two first shells.

[0010] Preferably, both side surfaces of the pressure plate are fixedly connected with right-angle baffles, and the right-angle baffles are used to block the two movable plates.

[0011] Preferably, the clamping mechanism also includes two cylinders, which are respectively embedded in the two side surfaces of the support seat, and the interiors of the two cylinders are fixedly connected with third springs, and the other ends of the two third springs are respectively fixedly connected to the sides of the two movable plates away from each other.

[0012] Preferably, the extrusion mechanism includes a first L-shaped plate and a second L-shaped plate fixedly connected to the outer surface of the movable plate, the outer surfaces of the two first L-shaped plates and the two second L-shaped plates are fixedly connected with a first triangular block, and the first L-shaped plate, the second L-shaped plate and the first triangular block are horizontally slidably connected to the inside of the support seat, the bottom surface of the pressure plate is fixedly connected with a second triangular block, and the second triangular block corresponds to the first triangular block one by one.

[0013] Preferably, the limiting mechanism includes a limiting block fixedly connected to the outer surface of the first L-shaped plate, and the end of the limiting block away from the first L-shaped plate passes through the support seat and is inserted into the interior of the first shell. The limiting block is provided with an inclined groove and a limiting hole on a side close to the pressure plate, and the depth of the inclined groove gradually becomes shallower from the outside to the inside. The limiting hole is connected to the inclined groove and is located at the innermost end of the inclined groove.

[0014] Preferably, the first shell has a first slide plate and a second slide plate slidingly connected thereto, a third tooth plate fixedly connected between the first slide plate and the second slide plate, a side of the second slide plate away from the first slide plate is fixedly connected to a limiting rod matched with the inclined groove and the limiting hole, a side of the first slide plate away from the second slide plate is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to the inner wall of the first shell.

[0015] Preferably, a first rotating shaft is rotatably installed between the first shell and a side surface of the support seat, a second gear is installed on the outer surface of the first rotating shaft, and the second gear is meshed with a third tooth plate, a third L-shaped plate is fixedly connected to the outer surface of the right-angle baffle, a side of the third L-shaped plate away from the pressure plate passes through the support seat and is inserted into the interior of the first shell, the third L-shaped plate is located on the upper surface of the inner part of the first shell and is fixedly connected to the second tooth plate, a one-way bearing is installed on the outer surface of the first rotating shaft, a first gear is installed on the one-way bearing, and the first gear is meshed with the second tooth plate.

[0016] Preferably, a mounting frame is installed at the bottom of the lightning arrester body, and a circular plate is fixedly installed on the top of the lightning arrester body, and a side of the circular plate away from the lightning arrester body is fixedly connected to a support plate, and a side of the support plate away from the circular plate is fixedly connected to a rectangular frame, and the support seat is rotatably set on the upper surface of the rectangular frame, and an adjustment mechanism for adjusting the angle of the support seat is arranged inside the rectangular frame, and the adjustment mechanism includes a second rotating shaft, one end of the second rotating shaft is rotatably mounted on the inside of the support plate, the other end of the second rotating shaft is fixedly connected to the support seat, a third gear is fixedly connected to the outer surface of the second rotating shaft, a threaded rod is rotatably installed inside the rectangular frame, one end of the threaded rod is fixedly connected to a knob, the outer surface of the threaded rod is threadedly connected to a threaded plate, and the threaded plate is slidably connected to the inside of the rectangular frame, and a first tooth plate is fixedly connected to a side of the threaded plate close to the third gear, and the first tooth plate is meshed with the third gear.

[0017] Preferably, a U-shaped connecting plate is fixedly connected to the top of the pressure column, a fixing plate is fixedly connected to the upper surface of the U-shaped connecting plate, and the fixing plate is fixedly connected to the stainless steel drainage ring.

[0018] Preferably, the reinforcement mechanism includes a second shell fixedly connected to the top of the support seat, a fourth spring fixedly connected to the interior of the second shell, the other end of the fourth spring fixedly connected to a fourth L-shaped plate, the upper surface of the fourth L-shaped plate contacts the bottom surface of the U-shaped connecting plate, the side of the fourth L-shaped plate close to the second shell is fixedly connected to a U-shaped guide plate, and the U-shaped guide plate is slidably connected to the second shell.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention cooperates among the pressure plate, the first spring, the right-angle baffle, the clamping mechanism, the extrusion mechanism and the limiting mechanism. When installing the stainless steel drainage ring, the pressure column is fully inserted into the interior of the support seat and then the pressure plate is pressed down to fix the stainless steel drainage ring. When disassembling the stainless steel drainage ring, the pressure plate only needs to be pressed down to the maximum extent to release the fixation of the stainless steel drainage ring, and then the stainless steel drainage ring can be removed. During the entire disassembly and assembly process, the staff only needs to operate with one hand, and the other hand can grab external objects to stabilize their body, thereby not only improving the operating convenience of the staff, but also improving the safety of the operation.

[0021] 2. The present invention provides an adjustment mechanism, and after the stainless steel drainage ring is fixed, the angle of the stainless steel drainage ring can be fine-tuned, thereby facilitating the precise installation of the stainless steel drainage ring to a specified angle.

[0022] 3. The present invention provides a reinforcement mechanism, which can support the U-shaped connecting plate after the stainless steel drainage ring is fixed, to prevent the U-shaped connecting plate from moving downward by itself, thereby effectively improving the installation stability of the stainless steel drainage ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a structural schematic diagram of the present invention, which hides the mounting frame, the arrester body, and the circular plate;

[0025] Figure 3 This is a cross-sectional view of the stainless steel drainage ring of the present invention after being connected to the mounting frame;

[0026] Figure 4 It is a cross-sectional view of the present invention when the stainless steel drainage ring is disassembled;

[0027] Figure 5 It is a structural schematic diagram of the support base of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the stainless steel drainage ring of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the limiting mechanism of the present invention;

[0030] Figure 8 It is a schematic structural diagram of the limit block of the present invention;

[0031] Fig. 9 It is a schematic diagram of the connection between the right-angle baffle and the third L-shaped plate of the present invention;

[0032] Fig.10 It is a schematic diagram of the connection between the second slide plate and the limit rod of the present invention;

[0033] Fig.11 It is a structural schematic diagram of the regulating mechanism of the present invention;

[0034] Fig.12 It is a structural schematic diagram of the reinforcement mechanism of the present invention.

[0035] In the figure: 1, mounting frame; 2, lightning arrester body; 3, round plate; 4, support plate; 5, rectangular frame; 6, fixed plate; 7, U-shaped connecting plate; 8, stainless steel drainage ring; 9, pressure column; 10, first spring; 11, pressure plate; 12, first tooth plate; 13, support seat; 14, right-angle baffle; 15, right-angle limit plate; 16, moving plate; 17, first L-shaped plate; 18, second L-shaped plate; 19, first triangular block; 20, second triangular block; 21, first rotating shaft; 22, one-way bearing; 23, first gear; 24, second gear; 25, second tooth plate; 26, second spring; 27, first slide plate; 28, second slide plate; 29, third tooth plate; 30, limit rod; 31, limit block; 32, inclined groove; 33, limit hole; 34, third L-shaped plate; 35, first shell; 36, third spring; 37, second shell; 38, fourth L-shaped plate; 39, U-shaped guide plate; 40, fourth spring; 41, second rotating shaft; 42, third gear; 43, threaded rod; 44, threaded plate; 45, cylinder. DETAILED DESCRIPTION

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0037] A gapped AC arrester, such as Figure 1-4 As shown, it includes a lightning arrester body 2 and a pressure column 9, a stainless steel drainage ring 8 is installed on the pressure column 9, a mounting frame 1 is installed at the bottom of the lightning arrester body 2, a circular plate 3 is fixedly installed on the top of the lightning arrester body 2, a side of the circular plate 3 away from the lightning arrester body 2 is fixedly connected to a support plate 4, a side of the support plate 4 away from the circular plate 3 is fixedly connected to a rectangular frame 5, a support seat 13 is rotatably provided on the upper surface of the rectangular frame 5, a chamber for the pressure column 9 to slide up and down is opened inside the support seat 13, a first spring 10 is fixedly connected inside the chamber, a pressure plate 11 is fixedly connected to the other end of the first spring 10, the bottom end of the pressure column 9 is pressed on the upper surface of the pressure plate 11, after the pressure column 9 is inserted into the inside of the support seat 13, the pressure column 9 will first contact with the pressure plate 11, at this time, continue to press the pressure column 9 to drive the pressure plate 11 to move downward and compress the first spring 10.

[0038] like Figure 2 and Figure 6As shown, the top end of the pressure column 9 is fixedly connected with a U-shaped connecting plate 7 , the upper surface of the U-shaped connecting plate 7 is fixedly connected with a fixing plate 6 , and the fixing plate 6 is fixedly connected with a stainless steel drainage ring 8 .

[0039] like Figure 5 , Figure 7 and Figure 8 As shown, a clamping mechanism for limiting the U-shaped connecting plate 7 is provided inside the support seat 13, and the clamping mechanism includes two right-angle limit plates 15 located on the upper surface of the support seat 13, and the bottom surfaces of the two right-angle limit plates 15 are fixedly connected to movable plates 16, and the two movable plates 16 are horizontally slidably connected to the inside of the support seat 13. The clamping mechanism also includes two cylinders 45, and the two cylinders 45 are respectively embedded in the two side surfaces of the support seat 13, and the insides of the two cylinders 45 are fixedly connected to third springs 36, and the other ends of the two third springs 36 are respectively fixedly connected to the sides of the two movable plates 16 that are away from each other. When the two movable plates 16 slide outward, the third springs 36 can be compressed, and the movement of the movable plates 16 can drive the right-angle limit plates 15 to move accordingly. After the two right-angle limit plates 15 slide outward to the maximum extent, the right-angle limit plates 15 no longer contact the U-shaped connecting plate 7, and when the two right-angle limit plates 15 slide inward to the maximum extent, the right-angle limit plates 15 will be pressed against the U-shaped connecting plate 7.

[0040] like Figure 3 , Figure 4 and Figure 7 As shown, an extrusion mechanism for driving two right-angle limit plates 15 to expand outward at the same time is arranged below the pressing plate 11, and the extrusion mechanism includes a first L-shaped plate 17 and a second L-shaped plate 18 fixedly connected to the outer surface of the movable plate 16, and the outer surfaces of the two first L-shaped plates 17 and the two second L-shaped plates 18 are fixedly connected to the first triangular block 19, and the first L-shaped plate 17, the second L-shaped plate 18 and the first triangular block 19 are all horizontally slidably connected to the inside of the support seat 13, and the bottom surface of the pressing plate 11 is fixedly connected to the second triangular block 20, and the second triangular block 20 corresponds to the first triangular block 19 one by one, and when the pressing plate 11 moves downward, the second triangular block 20 can be driven to move accordingly, and when the second triangular block 20 moves to contact with the first triangular block 19, continuing to move downward can squeeze the first triangular block 19 to move to one side, and the movement of the first triangular block 19 can drive the movable plate 16 and the right-angle limit plate 15 to move accordingly.

[0041] like Figure 5 , Figure 7 and Figure 8As shown, both sides of the support seat 13 are fixedly connected with a first shell 35, and the interiors of the two first shells 35 are provided with a limiting mechanism, which includes a limiting block 31 fixedly connected to the outer surface of the first L-shaped plate 17, and the end of the limiting block 31 away from the first L-shaped plate 17 passes through the support seat 13 and is inserted into the interior of the first shell 35. The side of the limiting block 31 close to the pressure plate 11 is provided with an inclined groove 32 and a limiting hole 33, and the depth of the inclined groove 32 gradually becomes shallower from the outside to the inside, the limiting hole 33 is connected to the inclined groove 32 and is located at the innermost end of the inclined groove 32, and the limiting block 31 can slide horizontally along the support seat 13.

[0042] like Figure 7-10 As shown, the first housing 35 is internally slidably connected with the first slide plate 27 and the second slide plate 28, the first slide plate 27 and the second slide plate 28 are fixedly connected with the third tooth plate 29, the second slide plate 28 is fixedly connected with a limiting rod 30 adapted to the inclined groove 32 and the limiting hole 33 on a side away from the first slide plate 27, the first slide plate 27 is fixedly connected with a second spring 26 on a side away from the second slide plate 28, and the other end of the second spring 26 is fixedly connected to the inner wall of the first housing 35, the first rotating shaft 21 is rotatably installed between the first housing 35 and a side surface of the support seat 13, the outer surface of the first rotating shaft 21 is installed with a second gear 24, and the second gear 24 is meshed with the third tooth plate 29, and the limiting rod 26 is fixedly connected to the second spring 26 on a side away from the second slide plate 28, and the second spring 26 is fixedly connected to the inner wall of the first housing 35, the first rotating shaft 21 is rotatably installed between the first housing 35 and a side surface of the support seat 13, the second gear 24 is meshed with the third tooth plate 29, and the second gear 24 is meshed with the third tooth plate 29. When the limit rod 30 is inserted into the inside of the inclined groove 32, the second spring 26 is in a compressed state. When the limit rod 30 is inserted into the inside of the limit hole 33, the second spring 26 is in a natural state. When the limit block 31 slides from the inside to the outside, the inclined groove 32 will gradually squeeze the limit rod 30 to move in the direction away from the limit block 31. The movement of the limit rod 30 can drive the second slide plate 28, the first slide plate 27, etc. to move accordingly and compress the second spring 26. When the limit block 31 moves outward to the maximum extent, the limit rod 30 will be concentric with the limit hole 33. At this time, under the action of the second spring 26, the limit rod 30 will be inserted into the inside of the limit hole 33, thereby limiting the limit block 31 and the right-angle limit plate 15, etc.

[0043] like Figure 5 , Figure 7 , Fig. 9 and Fig.10As shown, a first rotating shaft 21 is rotatably installed between the first shell body 35 and one side surface of the support seat 13, a second gear 24 is installed on the outer surface of the first rotating shaft 21, and the second gear 24 is meshed with the third tooth plate 29, a third L-shaped plate 34 is fixedly connected to the outer surface of the right-angle baffle 14, a side of the third L-shaped plate 34 away from the pressure plate 11 passes through the support seat 13 and is inserted into the interior of the first shell body 35, the third L-shaped plate 34 is located on the upper surface of the inner part of the first shell body 35 and is fixedly connected to the second tooth plate 25, a one-way bearing 22 is installed on the outer surface of the first rotating shaft 21, a first gear 23 is installed on the one-way bearing 22, the first gear 23 is meshed with the second tooth plate 25, the third L-shaped plate 34 can slide up and down along the support seat 13, when the pressure column 9 presses the pressure plate 11 to move downward, it can drive the third L-shaped plate 34 and the second tooth plate 25 to move downward, the second tooth plate 25 moving downward can drive the first gear 23 and the one-way bearing When the second gear 25 is moved upward by the pressure plate 11, under the action of the one-way bearing 22, the second gear 25 will only drive the second gear 24 to idle, and will not drive the first rotating shaft 21 and the second gear 24 to rotate.

[0044] like Figure 7 As shown, both side surfaces of the pressure plate 11 are fixedly connected with right-angle baffles 14, which are used to block the two movable plates 16. After the stainless steel drainage ring 8 is fixed, the two right-angle baffles 14 will be respectively pressed against the outer sides of the two movable plates 16. After the stainless steel drainage ring 8 is released, the two right-angle baffles 14 will be respectively pressed against the inner sides of the two movable plates 16. When the limiting rod 30 is moved out from the inside of the limiting hole 33, the right-angle baffle 14 will just move to not contact the movable plate 16.

[0045] like Fig.11As shown, an adjustment mechanism for adjusting the angle of the support seat 13 is provided inside the rectangular frame 5, and the adjustment mechanism includes a second rotating shaft 41, one end of the second rotating shaft 41 is rotatably installed with the inside of the support plate 4, the other end of the second rotating shaft 41 is fixedly connected to the support seat 13, and the outer surface of the second rotating shaft 41 is fixedly connected with the third gear 42, and a threaded rod 43 is rotatably installed inside the rectangular frame 5, one end of the threaded rod 43 is fixedly connected with a knob, and the outer surface of the threaded rod 43 is threadedly connected with a threaded plate 44, and the threaded plate 44 is slidably connected to the inside of the rectangular frame 5, and a side of the threaded plate 44 close to the third gear 42 is fixedly connected with the first toothed plate 12, and the first toothed plate 12 is meshed with the third gear 42. By turning the knob, the knob can drive the threaded rod 43 to rotate, and the rotation of the threaded rod 43 can drive the threaded plate 44 and the first toothed plate 12 to move horizontally along the threaded rod 43. The horizontal movement of the first toothed plate 12 can drive the third gear 42, the second rotating shaft 41, the support seat 13 and the stainless steel drainage ring 8 to rotate, thereby fine-tuning the angle of the stainless steel drainage ring 8.

[0046] like Figure 2 and Fig.12 As shown, two symmetrical reinforcement mechanisms are arranged above the support seat 13, and the reinforcement mechanism includes a second shell 37 fixedly connected to the top of the support seat 13, and a fourth spring 40 is fixedly connected to the inside of the second shell 37, and the other end of the fourth spring 40 is fixedly connected to a fourth L-shaped plate 38, and the upper surface of the fourth L-shaped plate 38 is in contact with the bottom surface of the U-shaped connecting plate 7, and a U-shaped guide plate 39 is fixedly connected to a side of the fourth L-shaped plate 38 close to the second shell 37, and the U-shaped guide plate 39 is slidably connected to the second shell 37. By setting up the reinforcement mechanism, after the stainless steel drainage ring 8 is fixed, the U-shaped connecting plate 7 can be supported to prevent the U-shaped connecting plate 7 from moving downward by itself, thereby effectively improving the installation stability of the stainless steel drainage ring 8.

[0047] Working principle: When installing the stainless steel drainage ring 8, first insert the pressure column 9 into the inside of the support seat 13 and make the pressure column 9 contact with the pressure plate 11 inside the support seat 13, and then press the fixing plate 6 downward, the fixing plate 6 can drive the pressure column 9 and the pressure plate 11 to move downward and compress the first spring 10, the downward movement of the pressure plate 11 can drive the right-angle baffle 14 and the second tooth plate 25 to move downward, the downward movement of the second tooth plate 25 can drive the first gear 23, the one-way bearing 22 and the second gear 24 to rotate forward, the forward rotation of the second gear 24 can drive the third tooth plate 29 and the limit rod 30 to move horizontally away from the limit block 31 and compress the second spring 26, when the limit rod 30 is completely moved out of the limit hole 33, the right angle baffle 14 and the second tooth plate 25 can move downward, The baffle 14 will just move to the point where it is not in contact with the movable plate 16, thereby releasing the limit on the limit block 31. Then, under the action of the third spring 36, the limit block 31 and the right-angle limit plate 15 will move inward to reset, and then the fixed plate 6 will be released. Under the action of the first spring 10, the pressure plate 11, the pressure column 9 and the U-shaped connecting plate 7 will move upward. At this time, the pressure plate 11 will press the pressure column 9, and the two right-angle limit plates 15 will press on the U-shaped connecting plate 7, thereby fixing the pressure column 9 and the stainless steel drainage ring 8, etc. When the pressure plate 11 drives the second tooth plate 25 to move upward, under the action of the one-way bearing 22, the second tooth plate 25 will only drive the second gear 24 to idle, and will not drive the first rotating shaft 21 and the second gear 24 to rotate.

[0048] When the stainless steel drainage ring 8 is disassembled, the two fourth L-shaped plates 38 are first pushed outward. The outward movement of the two fourth L-shaped plates 38 will compress the two fourth springs 40. When the fourth L-shaped plate 38 moves to a point where it is not in contact with the U-shaped connecting plate 7, the fixing plate 6 is pressed downward. The fixing plate 6 can drive the pressure column 9 and the pressure plate 11 to move downward and compress the first spring 10. The downward movement of the pressure plate 11 can drive the second triangular block 20 and the second toothed plate 25 to move downward. When the second triangular block 20 moves to contact the first triangular block 19, the limiting rod 30 will move out from the inside of the inclined groove 32, and then the second triangular block 20 continues to move downward to squeeze the first triangular block 19, the movable plate 16, and the limiting rod 30. The block 31 and the right-angle limit plate 15 move outward. At the same time, the second tooth plate 25 continues to move downward and will not mesh with the first gear 23. At this time, under the action of the second spring 26, the limit rod 30 will be inserted into the inside of the inclined groove 32 again. When the right-angle limit plate 15 moves outward to the maximum extent, the limit rod 30 will be concentric with the limit hole 33. At this time, under the action of the second spring 26, the limit rod 30 will be inserted into the inside of the limit hole 33, thereby limiting the limit block 31 and the right-angle limit plate 15, etc., and then release the fixing plate 6. Under the action of the first spring 10, the pressure plate 11 will rebound upward to reset, and then the pressure column 9 and the stainless steel drainage ring 8 can be removed.

[0049] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An AC lightning arrester with a gap, comprising a lightning arrester body (2) and a pressure column (9), characterized in that: A stainless steel drainage ring (8) is installed on the pressure column (9), and a support seat (13) is installed on the arrester body (2). A chamber for the pressure column (9) to slide up and down is provided inside the support seat (13). A first spring (10) is fixedly connected to the inside of the chamber. The other end of the first spring (10) is fixedly connected to a pressure plate (11). The bottom end of the pressure column (9) is pressed on the upper surface of the pressure plate (11). Two symmetrical reinforcement mechanisms are arranged above the support seat (13); A clamping mechanism for limiting the position of the U-shaped connecting plate (7) is arranged inside the support seat (13), the clamping mechanism comprising two right-angle limit plates (15) located on the upper surface of the support seat (13), the bottom surfaces of the two right-angle limit plates (15) are fixedly connected to a movable plate (16), the two movable plates (16) are horizontally slidably connected inside the support seat (13), a pressing mechanism is arranged below the pressing plate (11), both sides of the support seat (13) are fixedly connected to a first shell (35), and the insides of the two first shells (35) are provided with a limit mechanism; The extrusion mechanism comprises a first L-shaped plate (17) and a second L-shaped plate (18) fixedly connected to the outer surface of the movable plate (16); the outer surfaces of the two first L-shaped plates (17) and the two second L-shaped plates (18) are fixedly connected to a first triangular block (19); the first L-shaped plate (17), the second L-shaped plate (18) and the first triangular block (19) are horizontally slidably connected to the inside of the support seat (13); the bottom surface of the pressing plate (11) is fixedly connected to a second triangular block (20), and the second triangular block (20) corresponds to the first triangular block (19) one by one; The limiting mechanism comprises a limiting block (31) fixedly connected to the outer surface of the first L-shaped plate (17), and one end of the limiting block (31) away from the first L-shaped plate (17) passes through the support seat (13) and is inserted into the interior of the first shell (35), and a side of the limiting block (31) close to the pressure plate (11) is provided with an inclined groove (32) and a limiting hole (33), and the depth of the inclined groove (32) gradually decreases from the outside to the inside, and the limiting hole (33) is connected to the inclined groove (32) and is located at the innermost end of the inclined groove (32).

2. The AC lightning arrester with a gap according to claim 1, characterized in that: Both side surfaces of the pressing plate (11) are fixedly connected with right-angle baffles (14), and the right-angle baffles (14) are used to block the two movable plates (16).

3. The AC lightning arrester with a gap according to claim 1, characterized in that: The clamping mechanism further comprises two cylinders (45), the two cylinders (45) being respectively embedded in two side surfaces of the support seat (13), the interiors of the two cylinders (45) being fixedly connected with a third spring (36), the other ends of the two third springs (36) being respectively fixedly connected to the mutually distant sides of the two movable plates (16).

4. The AC lightning arrester with a gap according to claim 1, characterized in that: A first slide plate (27) and a second slide plate (28) are slidably connected inside the first housing (35); a third tooth plate (29) is fixedly connected between the first slide plate (27) and the second slide plate (28); a side of the second slide plate (28) away from the first slide plate (27) is fixedly connected to a limiting rod (30) that matches the inclined groove (32) and the limiting hole (33); a side of the first slide plate (27) away from the second slide plate (28) is fixedly connected to a second spring (26); and the other end of the second spring (26) is fixedly connected to the inner wall of the first housing (35).

5. The AC lightning arrester with a gap according to claim 2, characterized in that: A first rotating shaft (21) is rotatably mounted between the first shell (35) and a side surface of the support seat (13); a second gear (24) is mounted on the outer surface of the first rotating shaft (21), and the second gear (24) is meshed with a third toothed plate (29); a third L-shaped plate (34) is fixedly connected to the outer surface of the right-angle baffle (14); a side of the third L-shaped plate (34) away from the pressure plate (11) passes through the support seat (13) and is inserted into the interior of the first shell (35); the upper surface of the third L-shaped plate (34) located inside the first shell (35) is fixedly connected to the second toothed plate (25); a one-way bearing (22) is mounted on the outer surface of the first rotating shaft (21); a first gear (23) is mounted on the one-way bearing (22), and the first gear (23) is meshed with the second toothed plate (25).

6. The AC lightning arrester with a gap according to claim 1, characterized in that: A mounting frame (1) is installed at the bottom of the arrester body (2); a circular plate (3) is fixedly installed on the top of the arrester body (2); a side of the circular plate (3) away from the arrester body (2) is fixedly connected to a support plate (4); a side of the support plate (4) away from the circular plate (3) is fixedly connected to a rectangular frame (5); the support seat (13) is rotatably arranged on the upper surface of the rectangular frame (5); an adjusting mechanism for adjusting the angle of the support seat (13) is arranged inside the rectangular frame (5); the adjusting mechanism comprises a second rotating shaft (41); one end of the second rotating shaft (41) is rotatably mounted to the support plate (4); Inside, the other end of the second rotating shaft (41) is fixedly connected to the support seat (13), the outer surface of the second rotating shaft (41) is fixedly connected to the third gear (42), a threaded rod (43) is rotatably installed inside the rectangular frame (5), one end of the threaded rod (43) is fixedly connected to a knob, the outer surface of the threaded rod (43) is threadedly connected to a threaded plate (44), and the threaded plate (44) is slidably connected to the inside of the rectangular frame (5), and a first toothed plate (12) is fixedly connected to a surface of the threaded plate (44) close to the third gear (42), and the first toothed plate (12) is meshed with the third gear (42).

7. The AC lightning arrester with a gap according to claim 1, characterized in that: The top end of the pressure column (9) is fixedly connected to a U-shaped connecting plate (7), the upper surface of the U-shaped connecting plate (7) is fixedly connected to a fixing plate (6), and the fixing plate (6) is fixedly connected to a stainless steel drainage ring (8).

8. The AC lightning arrester with a gap according to claim 7, characterized in that: The reinforcement mechanism comprises a second shell (37) fixedly connected to the top of the support seat (13); a fourth spring (40) is fixedly connected inside the second shell (37); a fourth L-shaped plate (38) is fixedly connected to the other end of the fourth spring (40); an upper surface of the fourth L-shaped plate (38) is in contact with a bottom surface of the U-shaped connecting plate (7); a U-shaped guide plate (39) is fixedly connected to a surface of the fourth L-shaped plate (38) close to the second shell (37); and the U-shaped guide plate (39) is slidably connected to the second shell (37).

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