Suspension device for arc extinction switch

Abstract

The invention provides a suspension device for an arc extinction switch, and relates to the technical field of arc extinction switches, the suspension device comprises an arc extinction switch body, the top of the arc extinction switch body is provided with a clamping assembly, the clamping assembly comprises a second clamping frame, the top of the arc extinction switch body is provided with the second clamping frame, and two sides of the second clamping frame are symmetrically provided with first clamping frames. The first clamping frame and the second clamping frame are connected to the same cable in a sleeving mode, inserting columns are fixed to the bottom of the first clamping frame and the bottom of the second clamping frame, the inserting column of the second clamping frame is inserted into the top of the arc extinction switch body in a sliding mode, and the bottom of the inserting column of the first clamping frame is connected with a lower plate in a sliding and sleeving mode. The arc extinction switch body is synchronously installed through the connecting assembly, the periphery of the arc extinction switch body can be limited through cooperation of the limiting assembly and the clamping assembly, the shaking frequency and angle of the arc extinction switch body are reduced, and therefore the structure of the bottom of the arc extinction switch body can be manually adjusted conveniently through an operating rod.

Description

Technical Field

[0001] The invention relates to the technical field of arc extinguishing switches, in particular to a suspension device for arc extinguishing switches. Background Art

[0002] An arc-extinguishing switch is a switchgear used to eliminate arcs. It primarily uses air as an insulating medium, exploiting its arc-extinguishing properties to interrupt arcs in circuits, thereby protecting circuits and equipment from damage. Arc-extinguishing switches feature a simple structure, low cost, and ease of maintenance, making them suitable for use as circuit breakers in medium- and high-voltage power systems. Their operating principle is based on the arc-extinguishing properties of air. When excessive current or a short circuit occurs, the arc-extinguishing switch automatically disconnects the circuit, cooling the arc with air and causing it to extinguish naturally. This design prevents the arc-extinguishing switch from generating excessive temperatures when disconnecting the circuit, thereby protecting equipment and personnel.

[0003] During installation, the arc extinguishing switch is suspended on the cable by clamping it with a wire clamp on the top, and then the locking mechanism and hanging ring of the arc extinguishing switch are manually pulled by the operating lever. During this process, the conventional installation method of the arc extinguishing switch is to directly clamp the cable and then hang it in the air. This method can easily cause the arc extinguishing switch to shake when manually adjusting it using the operating lever, and the operating lever is not easy to align with the position of the locking mechanism and the hanging ring, affecting its efficiency. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a suspension device for an arc extinguishing switch to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. It is clamped on the cable by three sets of clamping frames and installed synchronously through connecting components. Through the cooperation of the limit component and the clamping component, the arc extinguishing switch body can be limited on all sides to reduce the frequency and angle of its shaking, thereby facilitating manual adjustment of the structure at its bottom using an operating lever.

[0005] To achieve the above-mentioned object, the present invention is implemented through the following technical solution: A suspension device for an arc extinguishing switch, comprising an arc extinguishing switch body, a clamping assembly provided at the top of the arc extinguishing switch body, the clamping assembly comprising a second clamping frame, the second clamping frame provided at the top of the arc extinguishing switch body, and first clamping frames symmetrically provided on both sides of the second clamping frame, the first and second clamping frames being sleeved on the same cable, a plug-in post fixed to the bottom of each of the first and second clamping frames, the plug-in post of the second clamping frame being slidably inserted into the top of the arc extinguishing switch body, and a lower plate being slidably sleeved on the bottom of the plug-in post of the first clamping frame, connecting assemblies provided on both sides of the top of the arc extinguishing switch body, the connecting assembly comprising a bidirectional screw, the bidirectional screws being symmetrically provided on both sides of the top of the arc extinguishing switch body, and two second connecting rods being mounted on the surfaces of the bidirectional screws, the second connecting rods being locked and connected to the lower plate, limit assemblies provided on both sides of the top of the clamping assembly, the limit assemblies comprising a top plate, top plates provided on both sides of the first clamping frame, the bottom of the top plate being symmetrically rotatably connected to the first connecting rods via a rotating shaft, the other end of the first connecting rod being rotationally connected to both sides of the first clamping frame via a rotating shaft.

[0006] Furthermore, the clamping assembly also includes a vertical rod, the plug column is fixed with the vertical rod through the bottom of the lower plate, and a first horizontal cross bar is slidably inserted on the bottom surface of the vertical rod, and a first arc plate is fixed to one end of the first cross bar facing the arc extinguishing switch body, and the first arc plate is in contact with the left and right side surfaces of the arc extinguishing switch body.

[0007] Furthermore, the limiting assembly also includes a vertical plate, a vertical plate is fixed to the middle bottom of the top plate, and a second horizontal cross bar is slidably inserted on the bottom surface of the vertical plate, and a second arc plate is fixed to one end of the second cross bar facing the arc extinguishing switch body, and the second arc plate is in contact with the front and rear surfaces of the arc extinguishing switch body.

[0008] Furthermore, a first spring is sleeved on the tail end of the first cross bar, and a second spring is sleeved on the tail end of the second cross bar. The first spring and the second spring are fixedly connected to the vertical bar and the vertical plate respectively.

[0009] Furthermore, telescopic plates are fixed to both ends of the two vertical plates, and the two vertical plates are fixedly connected via the telescopic plates.

[0010] Furthermore, the connecting assembly also includes a clamp, and two groups of clamps are sleeved on the top of the arc extinguishing switch body, and locking bolts are inserted on the two side ear plates of the two groups of clamps, and a nut is provided on the clamp ear plate on one side of the arc extinguishing switch body, and the nut is threadedly sleeved on the locking bolt.

[0011] Furthermore, a lifting screw is rotatably mounted on the top of the arc extinguishing switch body through a bearing seat, and a fixing plate is threadedly sleeved on the top of the lifting screw, and the fixing plate is fixedly connected to the top of the second clamping frame.

[0012] Furthermore, a bearing frame is fixed on the outside of the clamp, and the middle position of the bidirectional screw is rotatably installed inside the bearing frame. The two ends of the bidirectional screw are threaded with screw rings, and one end of the second connecting rod is rotatably connected to the screw ring through a rotating shaft.

[0013] Furthermore, a connecting shaft is rotatably mounted on the other end of the second connecting rod, a socket is provided at the center of the connecting shaft, an electric push rod is fixed at the position corresponding to the two connecting shafts inside the lower plate, and an insertion rod inserted into the connecting shaft socket is fixed at the extended end of the electric push rod.

[0014] Furthermore, a contact end is provided on the bottom side of the arc extinguishing switch body, and a locking mechanism is rotatably installed on the other side of the bottom of the arc extinguishing switch body through a rotating seat, and a plug-in hanging ear is provided on the bottom of the arc extinguishing switch body.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention is connected to the top of the arc extinguishing switch body through a clamp and fixed by locking bolts and nuts, which is convenient for subsequent disassembly. At the same time, the connection component is installed on the top of the arc extinguishing switch body without affecting the structure of the arc extinguishing switch body itself.

[0017] 2. The present invention uses the vertical rod at the bottom of the first clamp frame to stick the first arc plate to the left and right sides of the arc extinguishing switch body through the first cross rod and the elastic force of the first spring, and the second cross rod at the bottom of the vertical plate and the elastic force of the second spring to stick the second arc plate to the front and back sides of the arc extinguishing switch body, limiting its four sides to suppress the amplitude of its shaking.

[0018] 3. After the present invention is clamped on the cable, the extended end of the electric push rod is retracted and separated from the connecting shaft, so that the first clamping frame and the second clamping frame become two relatively independent structures. The shaking of the arc extinguishing switch body after being pushed will not excessively affect the first clamping frame and the limit assembly. At the same time, the limit assembly will also suppress the shaking of the arc extinguishing switch body. When disassembling, the lower plate is reconnected to the second connecting rod to facilitate the retraction of the first clamping frame to the vicinity of the second clamping frame.

[0019] 4. The present invention fastens the first clamping frame and the second clamping frame to the cable, rotates the lifting screw, and the fixed plate cooperates with the lifting screw thread. The arc extinguishing switch body is manually pushed upward to close the second clamping frame to clamp the cable. The connecting shaft of the second connecting rod is connected to the electric push rod of the lower plate, and the lower plate is synchronously driven to move upward until it closes with the first clamping frame to clamp the cable.

[0020] 5. In the present invention, when the space around the installation position of the arc extinguishing switch body is small and the remaining cable length is insufficient, the two first clamping frames can be adjusted by the second connecting rod and the bidirectional screw to move them closer to the second clamping frame, thereby shortening the distance between the first clamping frame and the second clamping frame. By connecting the clamping assembly and the limit assembly, the distance between the two top plates will become larger, shortening the limit frames on the left and right sides of the arc extinguishing switch body, and enlarging the front and rear limit frames, thereby maintaining a certain distance between at least two sides and the arc extinguishing switch body, thereby offsetting the shaking amplitude of the arc extinguishing switch body.

[0021] 6. Compared with the prior art, the present invention clamps the cable through three sets of clamping frames, which are installed synchronously through connecting components. Through the cooperation of the limit component and the clamping component, the arc suppression switch body can be limited on all sides to reduce the frequency and angle of its shaking, thereby facilitating manual adjustment of the structure at the bottom using the operating lever. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall top structure of an arc suppression switch suspension device according to the present invention;

[0023] Figure 2 This is a schematic diagram of the overall bottom structure of an arc suppression switch suspension device according to the present invention;

[0024] Figure 3 This is a schematic structural diagram of a clamping assembly for an arc-extinguishing switch suspension device according to the present invention;

[0025] Figure 4 This is a schematic diagram of the connection between a clamping assembly and a limiting assembly for an arc suppression switch suspension device of the present invention;

[0026] Figure 5 This is a schematic structural diagram of a limit assembly for an arc suppression switch suspension device according to the present invention;

[0027] Figure 6 This is a schematic diagram of the connection between a connecting assembly and a clamping assembly for an arc-extinguishing switch suspension device of the present invention;

[0028] Figure 7 The present invention is a schematic structural diagram of a connecting assembly for an arc-extinguishing switch suspension device.

[0029] In the figure: 1. Arc extinguishing switch body; 11. Contact end; 12. Hanging ear; 13. Locking mechanism; 2. Clamping assembly; 21. First clamping frame; 22. Insert column; 23. Lower plate; 24. Second clamping frame; 25. Vertical rod; 26. First cross bar; 27. First spring; 28. First arc plate; 29. ​​Electric push rod; 3. Limiting assembly; 31. Top plate; 32. Telescopic plate; 33. First connecting rod; 34. Vertical plate; 35. Second cross bar; 36. Second spring; 37. Second arc plate; 4. Cable; 5. Connecting assembly; 51. Second connecting rod; 52. Connecting shaft; 53. Bidirectional screw; 54. Bearing frame; 55. Screw ring; 56. Clamp; 57. Locking bolt; 58. Nut; 59. Lifting screw; 510. Fixing plate. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] See also Figures 1 to 7 The present invention provides a technical solution: a suspension device for an arc extinguishing switch, comprising an arc extinguishing switch body 1, a clamping assembly 2 being provided on the top of the arc extinguishing switch body 1, the clamping assembly 2 comprising a second clamping frame 24, a second clamping frame 24 being provided on the top of the arc extinguishing switch body 1, and a first clamping frame 21 being symmetrically provided on both sides of the second clamping frame 24, the first clamping frame 21 and the second clamping frame 24 being sleeved on the same cable 4, a plug-in column 22 being fixed to the bottom of the first clamping frame 21 and the second clamping frame 24, the plug-in column 22 of the second clamping frame 24 being slidably inserted into the top of the arc extinguishing switch body 1, and a lower plate 23 being slidably sleeved on the bottom of the plug-in column 22 of the first clamping frame 21, connecting assemblies 5 being provided on both sides of the top of the arc extinguishing switch body 1, the connecting assembly 5 comprising a bidirectional screw 53, A bidirectional screw 53 is provided, and two second connecting rods 51 are installed on the surface of the bidirectional screw 53, and the second connecting rods 51 are locked and connected to the lower plate 23. Limiting components 3 are provided on both sides of the top of the clamping component 2, and the limiting component 3 includes a top plate 31. Top plates 31 are provided on both sides of the first clamping frame 21, and the bottom of the top plate 31 is symmetrically connected to the first connecting rod 33 through a rotating shaft. The other end of the first connecting rod 33 is rotationally connected to both sides of the first clamping frame 21 through a rotating shaft. When using the device, the arc extinguishing switch body 1 is installed on the cable 4 through the clamping component 2 at the top, and then the clamping component 2 cooperates with the limiting component 3 to limit the surface of the arc extinguishing switch body 1. When the user adjusts the arc extinguishing switch body 1 through the operating lever, the limiting component 3 and the clamping component 2 together suppress the shaking of the arc extinguishing switch body 1 and reduce the amplitude of its shaking.

[0032] In this embodiment, the clamping assembly 2 also includes a vertical rod 25, the plug column 22 is fixed with the vertical rod 25 at the bottom of the lower plate 23, and a horizontal first cross bar 26 is slidably inserted on the bottom surface of the vertical rod 25, and the first cross bar 26 is fixed with a first arc plate 28 at one end facing the arc extinguishing switch body 1, and the first arc plate 28 is in contact with the left and right surfaces of the arc extinguishing switch body 1, the limiting assembly 3 also includes a vertical plate 34, the middle bottom of the top plate 31 is fixed with a vertical plate 34, and a horizontal second cross bar 35 is slidably inserted on the bottom surface of the vertical plate 34, the second cross bar 35 is fixed with a second arc plate 37 at one end facing the arc extinguishing switch body 1, and the second arc plate 37 is in contact with the front and rear sides of the arc extinguishing switch body 1 Surface contact, the tail end of the first cross bar 26 is sleeved with the first spring 27, and the tail end of the second cross bar 35 is sleeved with the second spring 36. The first spring 27 and the second spring 36 are fixedly connected to the vertical bar 25 and the vertical plate 34 respectively. The two ends of the two vertical plates 34 are fixed with telescopic plates 32, and the two vertical plates 34 are fixedly connected through the telescopic plates 32. The vertical bar 25 at the bottom of the first clamping frame 21 sticks the first arc plate 28 to the left and right sides of the arc extinguishing switch body 1 through the elastic force of the first cross bar 26 and the first spring 27. The second cross bar 35 and the elastic force of the second spring 36 at the bottom of the vertical plate 34 stick the second arc plate 37 to the front and back sides of the arc extinguishing switch body 1, limiting it on all sides to suppress the amplitude of its shaking.

[0033] In this embodiment, the connecting assembly 5 also includes a clamp 56, and two groups of clamps 56 are sleeved on the top of the arc extinguishing switch body 1. Locking bolts 57 are inserted on the ear plates on both sides of the two groups of clamps 56, and a nut 58 is provided on the ear plate of the clamp 56 on one side of the arc extinguishing switch body 1. The nut 58 is threadedly sleeved on the locking bolt 57 and is sleeved on the top of the arc extinguishing switch body 1 through the clamp 56. It is fixed by the locking bolt 57 and the nut 58 to facilitate subsequent disassembly. At the same time, the connecting assembly 5 is installed on the top of the arc extinguishing switch body 1 without affecting the structure of the arc extinguishing switch body 1 itself.

[0034] In this embodiment, a lifting screw 59 is rotatably installed on the top of the arc extinguishing switch body 1 through a bearing seat, and a fixing plate 510 is threadedly sleeved on the top of the lifting screw 59. The fixing plate 510 is fixedly connected to the top of the second clamping frame 24. The other end of the second connecting rod 51 is rotatably installed with a connecting shaft 52. A socket is provided at the center of the circle of the connecting shaft 52. An electric push rod 29 is fixed at the position corresponding to the two connecting shafts 52 inside the lower plate 23, and an insert rod inserted into the socket of the connecting shaft 52 is fixed at the extended end of the electric push rod 29. The first clamping frame 21 and the second clamping frame 24 are buckled on the cable 4. The lifting screw 59 is rotated, and the fixing plate 510 is threadedly matched with the lifting screw 59. The arc extinguishing switch body 1 is manually pushed upward to close with the second clamping frame 24 to clamp the cable 4. The connecting shaft 52 of the second connecting rod 51 is connected to the electric push rod 29 of the lower plate 23, and the lower plate 23 is synchronously driven to move upward until it is closed with the first clamping frame 21 to clamp the cable 4. In this partial structure, the contact part between the first clamping frame 21 and the lower plate 23 can be adsorbed by magnets. After clamping on the cable 4, the extended end of the electric push rod 29 is retracted and separated from the connecting shaft 52, so that the first clamping frame 21 and the second clamping frame 24 become two relatively independent structures. The shaking of the arc extinguishing switch body 1 after being pushed will not affect the first clamping frame 21 and the limit assembly 3 too much. At the same time, the limit assembly 3 will also suppress the shaking of the arc extinguishing switch body 1. When disassembling, the lower plate 23 is reconnected to the second connecting rod 51 to facilitate the retraction of the first clamping frame 21 to the vicinity of the second clamping frame 24.

[0035] In this embodiment, a bearing frame 54 is fixed to the outside of the clamp 56, and the middle position of the bidirectional screw 53 is rotatably installed inside the bearing frame 54, and screw rings 55 are threadedly sleeved on both ends of the bidirectional screw 53. One end of the second connecting rod 51 is rotatably connected to the screw ring 55 through a rotating shaft. When the bidirectional screw 53 is rotated, the bidirectional screw 53 rotates along the bearing frame 54. The two screw rings 55 are threadedly matched with the bidirectional screw 53 so that the second connecting rod 51 pushes the first clamping frame 21 and the bottom plate to move closer to or away from the arc extinguishing switch body 1, which can be adjusted according to the installation scenario, such as the arc extinguishing switch When the space around the installation position of the switch body 1 is small and the remaining length of the cable 4 is insufficient, the two first clamping frames 21 can be moved closer to the second clamping frame 24 by adjusting the second connecting rod 51 and the bidirectional screw 53, shortening the distance between the first clamping frame 21 and the second clamping frame 24. By connecting the clamping component 2 and the limit component 3, the distance between the two top plates 31 will become larger, shortening the limit frames on the left and right sides of the arc extinguishing switch body 1, and the front and rear limit frames will become larger, maintaining a certain distance between at least two sides and the arc extinguishing switch body 1, so as to offset the shaking amplitude of the arc extinguishing switch body 1.

[0036] In this embodiment, a contact end 11 is provided on the bottom side of the arc extinguishing switch body 1, and a locking mechanism 13 is rotatably installed on the other side of the bottom of the arc extinguishing switch body 1 through a rotating seat. A plug-in hanging ear 12 is provided at the bottom of the arc extinguishing switch body 1. The functions of the contact end 11, locking mechanism 13 and hanging ear 12 of this device are the same as the usage method and technical principle of the existing arc extinguishing switch, and are not described in detail here.

[0037] When using the device, it is sleeved on the top of the arc extinguishing switch body 1 through the clamp 56 and fixed by the locking bolt 57 and the nut 58 to facilitate subsequent disassembly. At the same time, the connection component 5 is installed on the top of the arc extinguishing switch body 1 without affecting the structure of the arc extinguishing switch body 1 itself. The arc extinguishing switch body 1 is installed on the cable 4 through the top clamping component 2, and the bidirectional screw 53 is rotated. The bidirectional screw 53 rotates along the bearing frame 54. The two screw rings 55 are threadedly matched with the bidirectional screw 53 so that the second connecting rod 51 pushes the first clamping frame 21 and the bottom plate to move closer to or away from the arc extinguishing switch body 1. It can be adjusted according to the installation scenario, such as the installation position of the arc extinguishing switch body 1. When the surrounding space is small and the remaining length of the cable 4 is insufficient, the two first clamping frames 21 can be moved closer to the second clamping frame 24 by adjusting the second connecting rod 51 and the bidirectional screw 53, shortening the distance between the first clamping frame 21 and the second clamping frame 24. By connecting the clamping component 2 and the limit component 3, the distance between the two top plates 31 will become larger, shortening the limit frames on the left and right sides of the arc extinguishing switch body 1, and the front and rear limit frames will become larger, keeping at least two sides at a certain distance from the arc extinguishing switch body 1, so as to offset the shaking amplitude of the arc extinguishing switch body 1, turn the lifting screw 59, and the fixing plate 510 cooperates with the lifting screw 59 thread to manually push the arc extinguishing switch body upward. The body 1 is closed with the second clamping frame 24 to clamp the cable 4, and is connected to the electric push rod 29 of the lower plate 23 through the connecting shaft 52 of the second connecting rod 51, which synchronously drives the lower plate 23 to move upward until it is closed with the first clamping frame 21 to clamp the cable 4. In this part of the structure, the contact part between the first clamping frame 21 and the lower plate 23 can be adsorbed by magnets. After clamping on the cable 4, the extended end of the electric push rod 29 is retracted and separated from the connecting shaft 52, so that the first clamping frame 21 and the second clamping frame 24 become two relatively independent structures. The shaking generated by the arc extinguishing switch body 1 after being pushed will not affect the first clamping frame 21 and the limit assembly 3 too much, and the limit assembly 3 will also To suppress the shaking of the arc extinguishing switch body 1, when disassembling, the lower plate 23 is reconnected to the second connecting rod 51 to facilitate the retraction of the first clamping frame 21 to the vicinity of the second clamping frame 24, and then the clamping assembly 2 and the limit assembly 3 cooperate to limit the surface of the arc extinguishing switch body 1. When the user adjusts the arc extinguishing switch body 1 through the operating lever, the vertical rod 25 at the bottom of the first clamping frame 21 sticks the first arc plate 28 to the left and right sides of the arc extinguishing switch body 1 through the elastic force of the first cross bar 26 and the first spring 27, and the second cross bar 35 at the bottom of the vertical plate 34 and the elastic force of the second spring 36 stick the second arc plate 37 to the front and back sides of the arc extinguishing switch body 1, limiting it on all sides to suppress the amplitude of its shaking.

[0038] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A suspension device for an arc-extinguishing switch, comprising an arc-extinguishing switch body (1), characterized in that: The top of the arc extinguishing switch body (1) is provided with a clamping assembly (2), and the clamping assembly (2) includes a second clamping frame (24). The top of the arc extinguishing switch body (1) is provided with a second clamping frame (24), and the second clamping frame (24) is symmetrically provided with a first clamping frame (21) on both sides. The first clamping frame (21) and the second clamping frame (24) are sleeved on the same cable (4). The bottoms of the first clamping frame (21) and the second clamping frame (24) are both fixed with a plug-in column (22). The plug-in column (22) of the second clamping frame (24) is slidably inserted into the top of the arc extinguishing switch body (1), and the bottom of the plug-in column (22) of the first clamping frame (21) is slidably sleeved with a lower plate (23). The two sides of the top of the arc extinguishing switch body (1) A connecting assembly (5) is provided, the connecting assembly (5) including a bidirectional screw (53), the bidirectional screws (53) are symmetrically provided on both sides of the top of the arc-extinguishing switch body (1), and two second connecting rods (51) are installed on the surface of the bidirectional screws (53), the second connecting rods (51) are locked and connected with the lower plate (23), and the clamping assembly (2) is provided with a limit assembly (3) on both sides of the top, the limit assembly (3) includes a top plate (31), the top plates (31) are provided on both sides of the first clamping frame (21), and the bottom of the top plate (31) is symmetrically connected to the first connecting rod (33) through a rotating shaft, and the other end of the first connecting rod (33) is rotationally connected to both sides of the first clamping frame (21) through a rotating shaft.

2. The arc-extinguishing switch suspension device according to claim 1, characterized in that: The clamping assembly (2) further comprises a vertical rod (25), the plug column (22) passing through the bottom of the lower plate (23) and fixed with the vertical rod (25), and a first horizontal crossbar (26) is slidably inserted on the bottom surface of the vertical rod (25), and a first arc plate (28) is fixed at one end of the first crossbar (26) facing the arc extinguishing switch body (1), and the first arc plate (28) contacts the left and right side surfaces of the arc extinguishing switch body (1).

3. The arc suppression switch suspension device according to claim 2, characterized in that: The limiting assembly (3) further comprises a vertical plate (34), the vertical plate (34) being fixed to the middle bottom of the top plate (31), and a second horizontal crossbar (35) being slidably inserted on the bottom surface of the vertical plate (34), a second arc plate (37) being fixed to one end of the second crossbar (35) facing the arc extinguishing switch body (1), and the second arc plate (37) being in contact with the front and rear surfaces of the arc extinguishing switch body (1).

4. The arc-extinguishing switch suspension device according to claim 3, characterized in that: The tail end of the first crossbar (26) is sleeved with a first spring (27), and the tail end of the second crossbar (35) is sleeved with a second spring (36). The first spring (27) and the second spring (36) are fixedly connected to the vertical bar (25) and the vertical plate (34) respectively.

5. The arc-extinguishing switch suspension device according to claim 3, characterized in that: Telescopic plates (32) are fixed at both ends of the two vertical plates (34), and the two vertical plates (34) are fixedly connected via the telescopic plates (32).

6. The arc-extinguishing switch suspension device according to claim 1, characterized in that: The connecting assembly (5) further comprises a clamp (56), two groups of clamps (56) are sleeved on the top of the arc extinguishing switch body (1), locking bolts (57) are inserted into the ear plates on both sides of the two groups of clamps (56), and a nut (58) is provided on the ear plate of the clamp (56) on one side of the arc extinguishing switch body (1), and the nut (58) is threadedly sleeved on the locking bolt (57).

7. The arc-extinguishing switch suspension device according to claim 6, characterized in that: A lifting screw (59) is rotatably mounted on the top of the arc extinguishing switch body (1) via a bearing seat, and a fixing plate (510) is threadedly sleeved on the top of the lifting screw (59), and the fixing plate (510) is fixedly connected to the top of the second clamping frame (24).

8. The arc-extinguishing switch suspension device according to claim 7, characterized in that: A bearing frame (54) is fixed to the outside of the clamp (56), and the middle position of the bidirectional screw (53) is rotatably mounted inside the bearing frame (54). Both ends of the bidirectional screw (53) are threadedly sleeved with screw rings (55), and one end of the second connecting rod (51) is rotatably connected to the screw ring (55) through a rotating shaft.

9. The arc-extinguishing switch suspension device according to claim 8, characterized in that: The other end of the second connecting rod (51) is rotatably mounted with a connecting shaft (52), a socket is provided at the center of the connecting shaft (52), an electric push rod (29) is fixed at the position corresponding to the two connecting shafts (52) inside the lower plate (23), and an insertion rod inserted into the socket of the connecting shaft (52) is fixed at the extended end of the electric push rod (29).

10. The arc-extinguishing switch suspension device according to claim 1, characterized in that: A contact end (11) is provided on the side of the bottom of the arc extinguishing switch body (1), and a locking mechanism (13) is rotatably mounted on the other side of the bottom of the arc extinguishing switch body (1) via a rotating seat, and a plug-in hanging ear (12) is provided on the bottom of the arc extinguishing switch body (1).

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