A movable lightning arrester device

Abstract

The application discloses a movable lightning arrester device, which comprises a cabinet body and a lightning arrester, the bottom of the cabinet body is provided with a hollow cavity, the lightning arrester is located above the hollow cavity, an adjusting mechanism is slidably arranged in the hollow cavity, and the adjusting mechanism drives the lightning arrester to rotate into the hollow cavity during the sliding process; the adjusting mechanism provided by the application can rotate the lightning arrester into the hollow cavity during the sliding process in the hollow cavity, and the lightning arrester is synchronously drawn out from the side of the cabinet body, so that the lightning arrester bypasses the components and electric wire lines in the cabinet body and is taken out from the side of the cabinet body, thereby avoiding the problem that the lightning arrester is difficult to be taken out and replaced in the cabinet body.

Description

Technical Field

[0001] This invention relates to the field of surge arrester technology, specifically to a movable surge arrester device. Background Technology

[0002] Zinc oxide surge arresters are surge arresters with excellent protective performance. They utilize the excellent nonlinear volt-ampere characteristics of zinc oxide to ensure that the current flowing through the arrester is extremely small (microamps or milliamps) under normal operating voltage. When an overvoltage occurs, the resistance drops sharply, dissipating the energy of the overvoltage and achieving the protective effect. The difference between this type of surge arrester and traditional surge arresters is that it does not have a discharge gap. It uses the nonlinear characteristics of zinc oxide to perform the functions of current discharge and interruption.

[0003] For example, patent CN212516746U, published on February 9, 2021, discloses a zinc oxide surge arrester, relating to the field of surge arrester technology. It includes a fixing plate, a fixing rod mounted at the center of the top of the fixing plate, an adjusting frame mounted at the top of the fixing rod, a connecting rod mounted at the center of the top of the adjusting frame, the bottom end of the connecting rod passing through the adjusting frame and connecting to the fixing rod, a universal joint mounted at the top of the connecting rod, a rotating seat fitted on the outer side of the universal joint, and a support plate mounted at the top of the rotating seat. A fixing sleeve is installed at the middle of the top of the support plate, and an mounting plate is installed at the top of the fixing sleeve. The top of the inner cavity of the fixing sleeve is threadedly connected to the arrester body that passes through the mounting plate. A conductive block is movably installed inside the fixing sleeve. The bottom end of the arrester body is in contact with the conductive block. A buffer sleeve is installed at the middle of the bottom end of the conductive block. An electrode seat is installed at the middle of the support plate. The buffer sleeve is movably inserted inside the electrode seat. The bottom end of the electrode seat is connected to a universal joint. A first spring is fitted on the outside of the buffer sleeve and at the bottom end of the conductive block.

[0004] Some existing surge arresters are installed inside cabinets of various electrical equipment and systems, such as electrical control cabinets, cable branch boxes, distribution cabinets, and communication cabinets. Surge arresters are usually installed at the innermost part of the cabinet. When a surge arrester needs to be replaced due to damage, it is usually done by manual disassembly. However, due to the long-term use of electrical equipment, the wires inside the cabinet are intertwined, and some surge arresters are large in size. The electrical equipment also has multiple sets of components inside. The components and intertwined wires make it difficult for workers to disassemble the surge arrester, resulting in the problem of the surge arrester being difficult to remove and replace. Summary of the Invention

[0005] The purpose of this invention is to provide a movable surge arrester device to overcome the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a movable surge arrester device, including a cabinet and a surge arrester, wherein a hollow cavity is provided at the bottom of the cabinet, the surge arrester is located above the hollow cavity, and an adjustment mechanism is slidably installed in the hollow cavity, the adjustment mechanism driving the surge arrester to rotate into the hollow cavity during the sliding process.

[0007] Furthermore, the adjustment mechanism includes a support plate, on which a support base is mounted. The surge arrester is detachably mounted on the support base. Both ends of the support base are connected to a connecting shaft, which is rotatably connected to the support plate. A first gear is mounted on the connecting shaft. A rack is installed inside the hollow cavity, and the rack is fixed to the inner wall of the cabinet. The first gear meshes with the rack.

[0008] Furthermore, the connection between the coupling and the support base is located on the side of the support plate near the opening on the side of the cabinet.

[0009] Furthermore, the inner wall of the cabinet is provided with a sliding groove, which is located in the hollow cavity. Sliders are installed on both sides of the support plate, and the sliders are arranged in the sliding groove. The support plate forms a sliding guide cooperation with the sliding groove through the sliders.

[0010] Furthermore, the adjustment mechanism also includes a vertical plate, which is located inside the hollow cavity and is fixedly connected to the support plate.

[0011] Furthermore, the upright plate is provided with an arc-shaped groove, and a flexible pad is installed inside the arc-shaped groove.

[0012] Furthermore, a locking mechanism is installed inside the support base to lock the surge arrester onto the support base.

[0013] Furthermore, the locking mechanism includes a second gear, which is rotatably mounted on the support base. A torsion spring is installed at the rotatable connection between the second gear and the support base. A first toothed limiting plate and a second toothed limiting plate are respectively installed on the upper and lower sides of the second gear. Both the first toothed limiting plate and the second toothed limiting plate mesh with the second gear and are slidably connected to the support base. An installation hole is installed at the center of the support base. A docking plate is fixedly installed at the bottom of the surge arrester. The bottom of the surge arrester extends into the installation hole. A limiting groove is opened on the docking plate. One end of the second toothed limiting plate extends into the limiting groove and forms a limiting abutment fit with the limiting groove. One end of the first toothed limiting plate extends out of the support base.

[0014] Furthermore, it also includes a passive mechanism, which is installed inside the hollow cavity and cooperates with the locking mechanism. The passive mechanism is used to drive the locking mechanism to release the surge arrester when the support plate moves horizontally.

[0015] Furthermore, the passive mechanism includes a protrusion, which is fixedly connected to the inner wall of the cabinet and located inside the hollow cavity.

[0016] The beneficial effects of the present invention are as follows: In the above technical solution, the adjustment mechanism provided by the present invention can rotate the surge arrester into the hollow cavity during the sliding process inside the hollow cavity, and pull it out from the side of the cabinet synchronously with the adjustment mechanism, so that the surge arrester bypasses the components and wires inside the cabinet and is taken out from the side of the cabinet, thus avoiding the problem that the surge arrester is difficult to take out and replace inside the cabinet. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the internal structure of the cabinet provided in an embodiment of the present invention;

[0019] Figure 2 This is a side view diagram of the surge arrester structure provided in an embodiment of the present invention;

[0020] Figure 3 This is an internal sectional view of the support base provided in an embodiment of the present invention;

[0021] Figure 4 This is a top view of the support plate of the surge arrester after rotation, provided in an embodiment of the present invention.

[0022] Figure 5 Provided for embodiments of the present invention Figure 1 Enlarged view of point A in the image;

[0023] Figure 6 Provided for embodiments of the present invention Figure 5 Enlarged view of point B in the image.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Cabinet; 11. Hollow cavity; 12. Electrical cavity; 2. Lightning arrester; 21. Connecting plate; 22. Limiting groove; 3. Adjustment mechanism; 31. Support plate; 311. First plate; 312. Second plate; 32. Support base; 33. Coupling shaft; 34. First gear; 35. Rack; 36. Vertical plate; 37. Rubber pad; 38. Bracket; 4. Locking mechanism; 41. Second gear; 42. First toothed limiting plate; 43. Second toothed limiting plate; 44. Receiving groove; 45. Mounting hole; 5. Passive mechanism; 51. Protrusion; 6. Limiting mechanism; 61. First stop; 62. Second stop; 63. Connecting rod; 64. Wedge; 65. Spring; 66. Groove. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. 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 an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] like Figures 1-6 As shown in the figure, an embodiment of the present invention provides a movable surge arrester device, including a cabinet 1 and a surge arrester 2. A hollow cavity 11 is provided at the bottom of the cabinet 1. The surge arrester 2 is located above the hollow cavity 11. An adjustment mechanism 3 is slidably installed in the hollow cavity 11. During the sliding process, the adjustment mechanism 3 drives the surge arrester 2 to rotate into the hollow cavity 11.

[0029] Specifically, cabinet 1 has an electrical cavity 12 and a hollow cavity 11. The hollow cavity 11 is located below the electrical cavity 12. Components, wires, and surge arresters 2 inside cabinet 1 are all installed in the electrical cavity 12. The surge arrester 2 is initially arranged vertically inside the electrical cavity 12. An adjustment mechanism 3 is installed inside the hollow cavity 11. An opening is provided on the side of cabinet 1, penetrating cabinet 1 and communicating with the hollow cavity 11. The adjustment mechanism 3 is a plate that can slide inside the hollow cavity 11. The plate has a drawer-type structure, sliding inside the hollow cavity 11 and can also be pulled out from the side opening of cabinet 1 like a drawer. The surge arrester 2 is rotatably connected to the plate. A drive mechanism is installed on the plate, which is a rotary drive mechanism such as a motor or rotary cylinder. In actual use, the operator must first disconnect the power supply and wires at both ends of the surge arrester 2, and then open the plate from the opening on the side of cabinet 1. The surge arrester 2 is pulled out from the hollow cavity 11. During the extraction process, the drive mechanism drives the surge arrester 2 to rotate 90 degrees, turning it from a vertical position to a horizontal position. After rotation, the surge arrester 2 lies flat on the plate. When the plate is pulled out, the surge arrester 2 is simultaneously pulled out from the hollow cavity 11. Since the surge arrester 2 and the plate are detachably connected, the detachable connection method can be a buckle, bolt, etc. When the surge arrester 2 and the plate are buckled, the buckle connection can be released after the surge arrester 2 is extended from the hollow cavity 11. The adjustment mechanism 3 provided in this embodiment of the invention can rotate the surge arrester 2 into the hollow cavity 11 during the sliding process in the hollow cavity 11, and pull it out from the side of the cabinet 1 in sync with the adjustment mechanism 3. This allows the surge arrester 2 to bypass the components and wires in the cabinet 1 and be taken out from the side of the cabinet 1, avoiding the problem of the surge arrester 2 being difficult to remove and replace in the cabinet 1.

[0030] In an optional embodiment, preferably, the adjusting mechanism 3 includes a support plate 31, a support base 32 is mounted on the support plate 31, the surge arrester 2 is detachably mounted on the support base 32, the two ends of the support base 32 are mounted with connecting shafts 33, the connecting shafts 33 are rotatably connected to the support plate 31, a first gear 34 is mounted on the connecting shafts 33, a rack 35 is installed in the hollow cavity 11, the rack 35 is fixed to the inner wall of the cabinet 1, and the first gear 34 meshes with the rack 35.

[0031] Specifically, the support plate 31 has an L-shaped structure and is installed flat inside the hollow cavity 11. The hollow cavity 11 is connected to the electrical cavity 12. A bracket 38 is installed on the support plate 31, and a connecting shaft 33 passes through and is rotatably connected to the bracket 38. That is, the connecting shaft 33 is connected to the support plate 31 through the bracket 38. The initial state of the support plate 31 is the first state. In the first state, the upper surface of the support seat 32 extends out of the hollow cavity 11 and is located in the electrical cavity 12. The first gear 34 is located at one end of the rack 35. In the first state, the meshing of the first gear 34 and the rack 35 can prevent the support seat 32 from rotating in the first state.

[0032] The second state is when the support plate 31 slides out of the hollow cavity 11 and is pulled out from the opening on the side of the cabinet 1. During the process of the support plate 31 moving from the first state to the second state, the operator can pull the support plate 31 from the side, so that the support plate 31 slides in the hollow cavity 11. The horizontal movement of the support plate 31 in the hollow cavity 11 synchronously drives the support base 32 to move horizontally. The first gear 34 on the connecting shaft 33 on the support base 32 meshes with the rack 35 during the horizontal movement, driving the first gear 34 to rotate during the horizontal movement, and driving the connecting shaft 33 and the support base 32 to rotate synchronously. In this way, the support base 32 drives the surge arrester 2 to rotate from the vertical state to the horizontal state, that is, from the electrical cavity 12 to the hollow cavity. Inside the cavity 11, until the surge arrester 2 rotates and rests on the support plate 31, the first gear 34 moves out from the other end of the rack 35 and disengages from the rack 35. The support plate 31 continues to move until it is fully extended from the opening. At this time, the support plate 31 reaches the second state. Because the surge arrester 2 and the support base 32 are detachably connected, the detachable connection method can be a snap, bolt, etc. When the surge arrester 2 and the support base 32 are bolted together, the bolt can be turned to release the connection between the surge arrester 2 and the support base 32. At this time, the surge arrester 2 can be removed from the support base 32, replaced and reinstalled on the support base 32. Repeat the above steps in reverse so that when the support plate 31 extends into the hollow cavity 11, it drives the surge arrester 2 to rotate into the electrical cavity 12.

[0033] Furthermore, the connection between the coupling 33 and the support 32 is located at an eccentric position of the surge arrester 2.

[0034] Specifically, the length direction of the support base 32 is consistent with the length direction of the support plate 31. The length of the support plate 31 is greater than the maximum diameter of the surge arrester 2. The surge arrester 2 is installed at the center of the support base 32. The connection point between the connecting shaft 33 and the support base 32 is located on the side of the support plate 31 near the opening on the side of the cabinet 1. That is, the connection point between the connecting shaft 33 and the support base 32 is not on the central axis of the surge arrester 2, but on the side of the central axis near the opening. This is equivalent to the rotating connection point between the connecting shaft 33 and the support base 32 being eccentrically set. In actual use, after the support base 32 rotates in the above position, the surge arrester 2 can rotate from above the rotating connection point to below the rotating connection point, so that the surge arrester 2 can indirectly descend into the hollow cavity 11 while rotating, allowing the surge arrester 2 to completely enter the hollow cavity 11.

[0035] Furthermore, the inner wall of the cabinet 1 is provided with a sliding groove, which is located in the hollow cavity 11. Sliders are installed on both sides of the support plate 31, and the sliders are arranged in the sliding groove. The support plate 31 forms a sliding guide cooperation with the sliding groove through the sliders.

[0036] Specifically, in order to ensure the stable horizontal movement of the support plate 31 and prevent the support plate 31 from tilting due to an imbalance in the center of gravity, in this embodiment, a sliding groove is provided on the inner wall of the cabinet 1. The groove direction is consistent with the length direction of the support plate 31. The slider is arranged in the sliding groove. The support base 32 and the surge arrester 2 are both installed on the support plate 31. The sliding of the slider in the sliding groove can not only make the support plate 31 move stably within the hollow cavity 11, but also restrict the support plate 31 within the hollow cavity 11, thus preventing the support plate 31 from tilting.

[0037] In another embodiment of the present invention, the adjustment mechanism 3 further includes a vertical plate 36, which is located inside the hollow cavity 11 and is fixedly connected to the support plate 31.

[0038] Specifically, in the first state, the surge arrester 2 is arranged vertically, and the upright plate 36 is located on the side of the surge arrester 2 away from the opening. When the surge arrester 2 rotates from the vertical state to the horizontal state, it will rest on the upright plate 36, and the upright plate 36 will support the support plate 31 to prevent the surge arrester 2 from directly colliding with the support plate 31 after rotation.

[0039] Furthermore, the upright plate 36 is provided with an arc-shaped groove, and a flexible pad is installed inside the arc-shaped groove.

[0040] Specifically, the upright plate 36 is provided with an arc-shaped groove, which is a U-shaped structure. A flexible pad is installed inside the arc-shaped groove. In actual use, the surge arrester 2 rotates and enters the arc-shaped groove and comes into contact with the flexible pad, which also prevents the surge arrester 2 from directly colliding with the upright plate 36. Furthermore, the arc-shaped groove can also be used to position and install the replaced surge arrester 2 in the second state.

[0041] In another embodiment of the present invention, a locking mechanism 4 is installed in the support base 32, which is used to lock the surge arrester 2 onto the support base 32.

[0042] Specifically, the locking mechanism 4 is installed on the support base 32. The locking mechanism 4 can be electronically latched, latched, etc., which is existing technology and will not be described in detail. When the support plate 31 moves from the first state to the second state, the surge arrester 2 extends completely from the hollow cavity 11 inside the cabinet 1. At this time, the staff can manually drive the locking mechanism 4 to reset, disconnect the support base 32 from the bottom of the surge arrester 2, take out the surge arrester 2 and replace it, and then fix the new surge arrester 2 on the support base 32 through the locking mechanism 4.

[0043] In an optional embodiment, preferably, the locking mechanism 4 includes a second gear 41, which is rotatably mounted on the support base 32. A torsion spring is installed at the rotatable connection between the second gear 41 and the support base 32. A first toothed limiting plate 42 and a second toothed limiting plate 43 are respectively installed on the upper and lower sides of the second gear 41. Both the first toothed limiting plate 42 and the second toothed limiting plate 43 mesh with the second gear 41 and are slidably connected to the support base 32. An installation hole 45 is provided at the center of the support base 32. A docking plate 21 is fixedly installed at the bottom of the surge arrester 2. The bottom of the surge arrester 2 extends into the installation hole 45. A limiting groove 22 is provided on the docking plate 21. One end of the second toothed limiting plate 43 extends into the limiting groove 22 and forms a limiting abutment cooperation with the limiting groove 22. One end of the first toothed limiting plate 42 extends out of the support base 32.

[0044] Specifically, the support base 32 has an internal receiving groove 44. The first toothed limiting plate 42, the second toothed limiting plate 43 and the second gear 41 are all installed in the receiving groove 44. The first toothed limiting plate 42 and the second toothed limiting plate 43 are in sliding guide engagement with the receiving groove 44. The opposite sides of the first toothed limiting plate 42 and the second toothed limiting plate 43 are provided with tooth grooves, and the two mesh with the second gear 41 through the tooth grooves.

[0045] In the first state, the surge arrester 2 is vertically arranged in the electrical cavity 12, one end of the first toothed limiting plate 42 extends out of the support base 32, the torsion spring at the rotatable connection between the second gear 41 and the support base 32 is in a contracted state, one end of the second toothed limiting plate 43 extends into the limiting groove 22 in the docking plate 21, and the surge arrester 2 is stuck inside the support base 32.

[0046] When the support plate 31 moves from the first state to the second state, the support base 32 moves synchronously with the support plate 31 and extends out of the hollow cavity 11. At this time, the operator can press the first toothed limiting plate 42, causing it to slide in the receiving groove 44 and extend into it. The horizontal movement of the first toothed limiting plate 42 engages and drives the second gear 41 to rotate. The torsion spring continues to contract, and the rotation of the second gear 41 drives the second toothed limiting plate 43 to move, causing the first toothed limiting plate 42 and the second toothed limiting plate 43 to move in opposite directions. The movement of the second toothed limiting plate 43 causes one end to extend out of the limiting groove 22. At this point, the second toothed limiting plate 43 disengages from the surge arrester 2, allowing the operator to directly remove the surge arrester 2 from the mounting hole 45 of the support base 32. The new surge arrester 2 is then installed into the mounting hole 45, aligning the mating groove with the second toothed limiting plate 43. The pressure on the second toothed limiting plate 43 is then released, and the torsion spring's return and expansion drive the first toothed limiting plate 42 and the second toothed limiting plate 43 to move in opposite directions. One end of the first toothed limiting plate 42 extends out of the support base 32 again, and one end of the second toothed limiting plate 43 extends back into the limiting groove 22. This completes the replacement and installation of the surge arrester 2.

[0047] It should be noted that in other embodiments, the limiting groove 22 can also be directly opened at the bottom of the surge arrester 2, as long as it does not affect the normal use of the surge arrester 2.

[0048] In another embodiment of the present invention, a passive mechanism 5 is also included. The passive mechanism 5 is installed in the hollow cavity 11 and cooperates with the locking mechanism 4. The passive mechanism 5 is used to drive the locking mechanism 4 to release the lock on the surge arrester 2 when the support plate 31 moves horizontally.

[0049] Specifically, during the process of the support plate 31 moving from the first state to the second state, the first toothed limiting plate 42 in the locking mechanism contacts the passive mechanism 5 during its horizontal movement. The passive mechanism 5 pushes the first toothed limiting plate 42 into the support base 32, and drives the second toothed limiting plate 43 to extend from the limiting groove 22 through the second gear 41. The passive mechanism 5 can be a guide slope set on the horizontal movement path of the first toothed limiting plate 42. After the first toothed limiting plate 42 contacts the guide slope, it forces the first toothed limiting plate 42 to move into the support base 32, so that the support plate 31 moves to the second state. The operator can directly remove the surge arrester 2 from the support base 32, omitting the disassembly and locking process of the surge arrester 2. Similarly, after the surge arrester 2 is installed on the support base 32, the first toothed limiting plate 42 moves horizontally and synchronously with the support plate 31. After the first toothed limiting plate 42 disengages from the guide slope, the torsion spring resets and drives the second gear 41 to rotate, causing the first toothed limiting plate 42 and the second toothed limiting plate 43 to move in opposite directions. One end of the first toothed limiting plate 42 extends out of the support base 32 again, and one end of the second toothed limiting plate 43 extends into the limiting groove 22 again. At this time, the replacement and installation of the surge arrester 2 are completed.

[0050] In an optional embodiment, preferably, the passive mechanism 5 includes a protrusion 51, which is fixedly connected to the inner wall of the cabinet 1 and located inside the hollow cavity 11.

[0051] Specifically, the protrusion 51 is fixedly connected to the inner wall of the cabinet 1. The protrusion 51 is installed on the horizontal movement path of the first toothed limiting plate 42. The protrusion 51 has a trapezoidal structure. The two sets of protrusions 51 correspond to two sets of locking mechanisms. An inclined surface and a holding surface are provided on the opposite side of the two sets of protrusions 51. The holding surface is located on the side of the inclined surface near the opening. During the process of the support plate 31 moving from the first state to the second state, the first toothed limiting plate 42 first contacts the inclined surface of the protrusion 51. Under the guidance of the inclined surface, the first toothed limiting plate 42 is forced to move into the support base 32. As the support plate 31 continues to move, the first toothed limiting plate 42 moves from the inclined surface to the holding surface. The holding surface is horizontally set. When the first toothed limiting plate 42 moves to the holding surface, it can maintain the state of the first toothed limiting plate 42 extending into the support base 32 until the support plate 31 moves. In the second state, the first toothed limiting plate 42 remains on the holding surface, so the operator can directly remove the surge arrester 2. Similarly, after the surge arrester 2 is installed on the support base 32, the first toothed limiting plate 42 moves horizontally and synchronously with the support plate 31. It first moves on the holding surface. After the first toothed limiting plate 42 leaves the holding surface, it contacts the inclined surface. At this time, the torsion spring continuously resets and expands, and the first toothed limiting plate 42 continuously extends out of the support base 32. The second toothed limiting plate 43 continuously extends into the limiting groove 22. When the first toothed limiting plate 42 completely leaves the inclined surface, the first toothed limiting plate 42 and the second toothed limiting plate 43 have also reset. One end of the first toothed limiting plate 42 extends out of the support base 32 again, and one end of the second toothed limiting plate 43 extends into the limiting groove 22 again. At this time, the replacement and installation of the surge arrester 2 are completed.

[0052] In another embodiment of the present invention, the support plate 31 is a telescopic structure, and a rubber pad 37 is installed at the bottom of the support plate 31.

[0053] Specifically, the support plate 31 has a telescopic structure, comprising a first plate 311 and a second plate 312 that slide relative to each other. A portion of the first plate 311 is housed within the second plate 312 and can slide within it. The second plate 312 is located on the side with the opening, and the first plate 311 is located on the side opposite to the opening. A rubber pad 37 is located below the first plate 311 and fixedly connected to the bottom of the cabinet 1. A support base 32 is movably connected to the first plate 311. Multiple sets of uprights 36 are installed on the first plate 311 and are equidistantly arranged along the length of the first plate 311, with a certain spacing between each set of uprights 36. In the first state, the support plate 31 is in a retracted state, with a portion of the first plate 311 extending into the second plate 312. During the movement of the support plate 31 from the first state to the second state, the first plate 311 moves horizontally, while the second plate 312 remains stationary due to the contact with the rubber pad 37. The first plate 311 gradually extends out from the second plate 312, meaning the support plate 31 gradually stretches. At this time, the surge arrester 2 rotates from a vertical state to a horizontal state. The horizontally positioned surge arrester 2 rests on the upright plate 36. Because the surge arrester 2 has multiple sets of annular protrusions, these protrusions are located within the gaps between adjacent upright plates 36 after rotation. As the second plate 312 continues to move, the surge arrester 2 is locked onto the support plate. On the support 32, the second plate 312 will pull the surge arrester 2 to move synchronously, so that the annular protrusion contacts the vertical plate 36. Under the resistance of the vertical plate 36, the surge arrester 2 moves synchronously with the second plate 312, driving the first plate 311 to move. At this time, the first plate 311 overcomes the friction with the rubber pad 37 and moves horizontally in the hollow cavity 11. That is, the support plate 31 maintains this stretched state and slides in the hollow cavity 11. When the first toothed limiting plate 42 on the support plate 31 contacts the protrusion 51, it releases the lock on the surge arrester 2. The surge arrester 2 loses its fixation to the support 32, and the movement of the second plate 312 will not drive the surge arrester 2 to move. At this time, the first plate 311 is still in the rubber pad 37. On the rubber base, the second plate 312 continues to move horizontally, while the first plate 311 stops moving again under the action of the rubber pad 37, that is, the support plate 31 is stretched again. The distance between the upright plate 36 on the first plate 311 and the support base 32 is gradually increased. The surge arrester 2 is limited on the first plate 311 by the upright plate 36. Therefore, the movement of the second plate 312 will drive the bottom of the surge arrester 2 to gradually extend out of the mounting hole 45 of the support base 32 until the support plate 31 is stretched to the limit position. Then, the movement of the second plate 312 pulls the first plate 311 to continue moving until the support plate 31 extends out of the opening of the cabinet 1. At this time, the staff can directly remove the surge arrester 2 from the upright plate 36.

[0054] Furthermore, it also includes a limiting mechanism 6, with the upright plate 36 rotatably connected to the support plate 31. The limiting mechanism 6 is used to adjust the rotation of the upright plate 36 on the support plate 31.

[0055] Specifically, the upright plate 36 is mounted on the first plate 311 via a hinge shaft, and a torsion spring is also mounted on the hinge shaft. The two ends of the torsion spring are connected to the upright plate 36 and the first plate 311 respectively. A first stop block 61 is mounted on the side of the upright plate 36 near the support base 32, and a second stop block 62 is mounted on the other side. The first stop block 61 is fixedly connected to the upper surface of the first plate 311. A groove 66 is opened inside the first plate 311. A connecting rod 63 is slidably mounted inside the groove 66. Multiple sets of wedges 64 are mounted on the upper surface of the connecting rod 63. The multiple sets of wedges 64 correspond to multiple sets of second stop blocks 62 on one side of the upright plate 36. The bottom of the second stop block 62 extends into the groove 66 and forms a wedge-shaped fit with the wedges 64. A spring 65 is also installed inside the groove 66. The two ends of the spring 65 are connected to the groove wall of the groove 66 and the outer wall of the connecting rod 63 respectively.

[0056] In the first state, one end of the connecting rod 63 abuts against the inner wall of the hollow cavity 11, that is, the inner wall of the cabinet 1. At this time, the connecting rod 63 is completely contained in the groove 66, the spring 65 is in a contracted state, and the second stop 62 is completely lowered into the groove 66 and located on one side of the wedge 64.

[0057] When the support plate 31 slides within the hollow cavity 11, the surge arrester 2 rests on the upright plate 36. The movement of the first plate 311 pulls the surge arrester 2 to move synchronously. At this time, the first stop block 61 prevents the upright plate 36 from rotating to one side of the support base 32. The surge arrester 2 will pull the upright plate 36 to move synchronously, and drive the first plate 311 to move synchronously. The movement of the first plate 311 causes the connecting rod 63 to extend from the first plate 311, the spring 65 gradually returns to its original position, and the wedge block 64 moves synchronously with the connecting rod 63. The inclined surface on the wedge block 64 drives the second stop block 62 to move upward. 2 gradually extends out of the groove 66 and is located on the side of the upright plate 36 away from the support base 32, that is, the side 61 away from the first stop block. After the spring 65 is reset, the connecting rod 63 stops moving, and the wedge block 64 moves to the bottom of the second stop block 62. Since the wedge block 64 is also trapezoidal, the second stop block 62 in this state is located on the top surface of the wedge block 64. The top surface is horizontal. The second stop block 62 will not descend into the groove 66 due to the resistance of the wedge block 64. The second stop block 62 remains on one side of the upright plate 36 until the support plate 31 moves to the second state.

[0058] When the worker places the replaced surge arrester 2 on the upright plate 36, the worker pushes the support plate 31 into the hollow cavity 11, that is, the support plate 31 moves from the second state to the first state. During the resetting process, the first toothed limiting plate 42 slides on the holding surface of the protrusion 51, and the first plate 311 stops moving under the contact of the rubber pad 37, that is, the support plate 31 begins to retract, the distance between the upright plate 36 and the support base 32 shortens, and the bottom of the surge arrester 2 gradually extends into the mounting hole 45 in the support base 32. When the mating plate 21 at the bottom of the surge arrester 2 is fully extended into the mounting hole 45, The surge arrester 2 abuts against the support base 32. The movement of the support base 32 pushes the surge arrester 2 to move on the vertical plate 36, so that the annular protrusion on the surge arrester 2 abuts against the vertical plate 36. At this time, under the obstruction of the second stop block 62, the vertical plate 36 will not move on the first plate 311 due to the push of the surge arrester 2, but will move synchronously with the surge arrester 2. That is, the first plate 311 and the second plate 312 will reset and move synchronously. During the movement, the first toothed limiting plate 42 disengages from the protrusion 51, and the second gear 41 resets and rotates, driving the second toothed limiting plate 43 to extend into the limiting groove 22, thereby locking the surge arrester 2.

[0059] As the support plate 31 continues to move, the connecting rod 63 abuts against the inner wall of the hollow cavity 11, i.e., the inner wall of the cabinet 1. The connecting rod 63 retracts back into the first plate 311, and the wedge block 64 retracts back into motion, disengaging from the second stop block 62. Under the influence of gravity, the second stop block 62 retracts back into the groove 66. At this point, the upright plate 36 is no longer restricted by the second stop block 62 and can rotate to the side away from the first stop block 61. Simultaneously, the first gear 34 meshes with the rack 35, and the first gear 34 drives the support plate 31 to rotate. As the base 32 and the surge arrester 2 on it rotate, in order to prevent the vertical plate 36 from obstructing the rotation of the surge arrester 2, the second stop 62 has been inserted into the groove 66. The rotation of the surge arrester 2 can push the vertical plate 36 to rotate away from the first stop 61. The torsion spring at the rotational connection between the vertical plate 36 and the first plate 311 begins to contract. After the surge arrester 2 rotates to a vertical position and is located in the hollow cavity 11, the torsion spring drives the vertical plate 36 to return to its original position. At this time, the support plate 31 contracts its outer wall and is completely housed in the hollow cavity 11.

[0060] It should be noted that, in order to prevent the support plate 31 from protruding from the hollow cavity 11 during the use of the surge arrester 2, a blocking component can be installed on the side of the cabinet 1. The blocking component can be a baffle that is rotatably set above the opening. The baffle is rotatably connected to the outer wall of the cabinet 1. When the surge arrester 2 is in use, the baffle rotates into the opening due to gravity, blocking the movement of the support plate 31. When the surge arrester 2 is taken out, the baffle can be rotated out of the opening.

[0061] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A movable surge arrester device, comprising a cabinet (1) and a surge arrester (2), characterized in that, The bottom of the cabinet (1) is provided with a hollow cavity (11), and the surge arrester (2) is located above the hollow cavity (11). An adjustment mechanism (3) is slidably installed in the hollow cavity (11). During the sliding process, the adjustment mechanism (3) drives the surge arrester (2) to rotate into the hollow cavity (11), so that it rotates from a vertical state to a horizontal state. The adjustment mechanism (3) includes a support plate (31), a support seat (32) is installed on the support plate (31), the lightning arrester (2) is detachably installed on the support seat (32), the two ends of the support seat (32) are connected by a connecting shaft (33), the connecting shaft (33) is rotatably connected to the support plate (31), the connecting shaft (33) is installed with a first gear (34), a rack (35) is installed in the hollow cavity (11), the rack (35) is fixed to the inner wall of the cabinet (1), and the first gear (34) meshes with the rack (35); The adjustment mechanism (3) also includes a vertical plate (36), which is located inside the hollow cavity (11) and is fixedly connected to the support plate (31). The horizontal lightning arrester (2) rests on the vertical plate (36). A locking mechanism (4) is installed inside the support base (32), which is used to lock the surge arrester (2) onto the support base (32); It also includes a passive mechanism (5), which is installed in the hollow cavity (11) and cooperates with the locking mechanism (4). The passive mechanism (5) is used to drive the locking mechanism (4) to release the lock on the surge arrester (2) when the support plate (31) moves horizontally.

2. The movable surge arrester device according to claim 1, characterized in that, The connection between the connecting shaft (33) and the support base (32) is located on the side of the support plate (31) near the side opening of the cabinet (1).

3. A movable surge arrester device according to claim 1, characterized in that, The inner wall of the cabinet (1) is provided with a sliding groove, which is located in the hollow cavity (11). Sliders are installed on both sides of the support plate (31), and the sliders are arranged in the sliding groove. The support plate (31) forms a sliding guide cooperation with the sliding groove through the sliders.

4. A movable surge arrester device according to claim 1, characterized in that, The upright plate (36) is provided with an arc-shaped groove, and a flexible pad is installed in the arc-shaped groove.

5. A movable surge arrester device according to claim 1, characterized in that, The locking mechanism (4) includes a second gear (41), which is rotatably mounted on a support base (32). A torsion spring is installed at the rotatable connection between the second gear (41) and the support base (32). A first toothed limiting plate (42) and a second toothed limiting plate (43) are respectively installed on the upper and lower sides of the second gear (41). Both the first toothed limiting plate (42) and the second toothed limiting plate (43) mesh with the second gear (41) and are slidably connected to the support base. 32), a mounting hole (45) is installed at the center of the support base (32), a docking plate (21) is fixedly installed at the bottom of the surge arrester (2), the bottom of the surge arrester (2) extends into the mounting hole (45), a limiting groove (22) is opened on the docking plate (21), one end of the second toothed limiting plate (43) extends into the limiting groove (22) and forms a limiting abutment with the limiting groove (22), and one end of the first toothed limiting plate (42) extends out of the support base (32).

6. A movable surge arrester device according to claim 1, characterized in that, The passive mechanism (5) includes a protrusion (51), which is fixedly connected to the inner wall of the cabinet (1) and located inside the hollow cavity (11).

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