Gas insulation switch cabinet

By designing the combination of induction part, drive part and clamping part in the gas insulated switch cabinet, the automatic clamping and replacement of the insulated cabinet is achieved, solving the problem of low replacement efficiency in the prior art, and improving the working efficiency and the service life of the equipment.

CN119726409AInactive Publication Date: 2025-03-28QIQITETE SHANXI TIANYI ELECTRIC POWER EQUIP CO LTD
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Patent Information

Application Number
CN202411889344.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When maintaining or replacing an insulated switch cabinet, the fixing method of existing gas insulated switch cabinets is complicated, resulting in low replacement efficiency and reducing working efficiency.

Method used

A gas insulated switch cabinet is designed, which adopts a combination of induction part, drive part and clamping part. Through the coordination of induction part and opening and closing door, the automatic clamping and replacement of insulating cabinet is realized.

Benefits of technology

Through the automated clamping and replacement process, the replacement efficiency of the insulating cabinet is significantly improved, manual intervention is reduced, and the service life of the equipment is extended.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a gas insulation switch cabinet, and relates to the technical field of gas switch cabinets, the gas insulation switch cabinet comprises a cabinet body, a bearing assembly and a clamping assembly, one side of the cabinet body is in an opening shape, and the opening end is rotatably connected with an opening and closing door; the number of the bearing assemblies is multiple, the multiple bearing assemblies are arranged in the vertical axis direction of the cabinet body by a circle, and the bearing assemblies are arranged in the cabinet body and used for supporting an insulation cabinet in the cabinet body; the clamping assembly comprises a sensing part, a driving part and a clamping part, the two ends of the sensing part are connected with the cabinet body and the opening and closing door respectively, and the sensing part is used for sensing the opening and closing states of the opening and closing door; the driving part is arranged in the cabinet body, responds to the opening and closing signal output by the sensing part and is used for controlling the clamping part to move; a plurality of groups of clamping parts are arranged, the plurality of groups of clamping parts are arranged around the insulation cabinet, and the clamping parts are arranged in the cabinet body and are used for clamping the insulation cabinet. The device has the effect of improving the replacement efficiency of the insulation cabinet.
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Description

Technical Field

[0001] The present application relates to the technical field of gas switch cabinets, and in particular to a gas insulated switch cabinet. Background Art

[0002] The switch cabinet is an electrical device. The external line of the switch cabinet first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. The main function of the switch cabinet is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system.

[0003] At present, gas-insulated switchgear uses dry air instead of traditional SF6 gas as the insulating medium, which not only improves the insulation performance, but also does not pollute the air after release. At the same time, environmentally friendly gas-insulated switchgear adopts vacuum arc extinguishing chamber, the cabinet pressure is constant, and the environmental adaptability is strong.

[0004] However, in actual operation, since the fixing method of the insulation cabinet is relatively complicated, it is time-consuming and labor-intensive to maintain or replace the insulation cabinet, which reduces work efficiency. Summary of the invention

[0005] In order to improve the replacement efficiency of insulation cabinets, the present application provides a gas insulated switch cabinet.

[0006] The present application provides a gas-insulated switchgear, which adopts the following technical solution: A gas insulated switchgear, comprising: The cabinet body has an opening on one side, and an opening and closing door is rotatably connected to the opening end; A plurality of supporting components are provided, and the plurality of supporting components are arranged around the vertical axis direction of the cabinet body. The supporting components are provided in the cabinet body and are used to support the insulating cabinet in the cabinet body; Clamping assembly, comprising: A sensing part, two ends of which are respectively connected to the cabinet and the opening and closing door, and is used to sense the opening and closing states of the opening and closing door; A driving part is arranged in the cabinet, the driving part responds to the opening and closing signal output by the sensing part, and is used to control the movement of the clamping part; The clamping parts are provided in multiple groups, and the multiple groups of clamping parts are arranged around the insulation cabinet. The clamping parts are arranged in the cabinet body and are used to clamp the insulation cabinet.

[0007] By adopting the above technical solution, when the opening and closing door is opened, the insulating cabinet is placed by the supporting assembly, and when the opening and closing door is closed, the sensing part senses that the opening and closing door is in a closed state, and transmits a closing signal to the driving part, and the driving part controls the movement of the clamping part, and the clamping part clamps the insulating cabinet to prevent the insulating cabinet from shaking in the cabinet body. Through the cooperation of the sensing part and the opening and closing door, it is convenient to change the insulating cabinet, thereby facilitating the replacement efficiency of the insulating cabinet.

[0008] Optionally, the sensing unit includes: A top block is fixed on the opening and closing door and is located on a side of the opening and closing door close to the inner cavity of the cabinet; The induction telescopic rod is fixedly arranged in the cabinet, and the movable end is arranged in a direction close to the top block. When the opening and closing door is closed, the top block can squeeze the movable end of the induction telescopic rod to move.

[0009] By adopting the above technical solution, when the opening and closing door is closed, the top block squeezes the movable end of the induction telescopic rod, and the trigger signal is transmitted to the driving part, thereby controlling the movement of the clamping part. This helps to extend the service life of the gas insulated switchgear by reducing manual intervention and ensuring a stable clamping state.

[0010] Optionally, the driving unit includes: A first amplifying telescopic rod is fixedly arranged in the cabinet, and the rodless cavity is connected with the rodless cavity of the sensing telescopic rod through a guide pipe; A second enlarged telescopic rod is fixedly disposed in the cabinet and is located on one side of the first enlarged telescopic rod; A lever, both ends of which are respectively hinged to the movable end of the first amplifying telescopic rod and the movable end of the second amplifying telescopic rod; One end of the support rod is fixedly connected to the cabinet body, and the other end is hinged to the lever. The connection point between the support rod and the lever is arranged in a direction close to the enlarged telescopic rod.

[0011] By adopting the above technical solution, when the opening and closing door is closed, the top block squeezes the movable end of the sensing telescopic rod to move, and the internal volume of the rodless cavity of the sensing telescopic rod is reduced. Since the rodless cavity of the sensing telescopic rod is connected to the rodless cavity of the amplifying telescopic rod 1, the internal volume of the rodless cavity of the amplifying telescopic rod 1 is increased, and the movable end of the amplifying telescopic rod 1 moves. The movable end of the enlarged telescopic rod one pushes one end of the lever to rotate, and under the action of the support rod, the lever squeezes the movable end of the enlarged telescopic rod two to move. Since the connection point of the support rod is close to the enlarged telescopic rod one, the greater the movement of the movable end of the enlarged telescopic rod one, the greater the movement of the movable end of the enlarged telescopic rod two. The lever is connected to the enlarged telescopic rod one to achieve force amplification and direction conversion, which helps to achieve rapid and stable movement of the clamping part.

[0012] Optionally, the clamping portion includes: A double-ended telescopic rod is fixedly mounted on the inner wall of the cabinet, and the rod cavity of the double-ended telescopic rod is connected with the rodless cavity of the enlarged telescopic rod 2 through a connecting pipe; Two connecting rods are provided, and the two connecting rods are respectively hinged to the two movable ends of the double-head telescopic rod; Wherein, one end of the two connecting rods away from the movable end of the double-head telescopic rod is hinged with a clamping plate.

[0013] By adopting the above technical scheme, under the action of the support rod, the lever squeezes and moves the movable end of the amplified telescopic rod 2, and since the rod cavities of the double-headed telescopic rod are connected with the rodless cavity of the amplified telescopic rod 2, the volume of the rodless cavity of the amplified telescopic rod 2 is reduced, and the rod cavity of the double-headed telescopic rod is increased, the two movable ends of the double-headed telescopic rod move towards each other, the movable end of the double-headed telescopic rod drives the connecting rod to rotate, and the distance between the two connecting rods is reduced, converting the movement of the double-headed telescopic rod into the movement of the clamping plate, while maintaining the stability of the clamping plate during the movement, thereby clamping the insulating cabinet, realizing the automatic control of the clamping part, and reducing the need for manual intervention.

[0014] Optionally, a slide groove is provided on the clamping plate, and an adjustment component is also provided in the slide groove, and the adjustment component includes: An adjusting plate, arranged on a side of the clamping plate away from the connecting rod; A plurality of slide bars are provided, and the plurality of slide bars are arranged along the length direction of the slide slot, one end of the slide bar is fixedly connected to the adjustment plate, and the other end is slidably connected to the slide slot; There are multiple adjusting springs, and the multiple adjusting springs correspond to the multiple sliding rods one by one. One end of the adjusting spring is fixedly connected to the bottom of the sliding groove, and the other end is fixedly connected to the sliding rod. In the initial state, the adjusting spring is in an extended state.

[0015] By adopting the above technical solution, by adjusting the position of the adjustment plate in the slide groove, the clamping force and position of the clamping plate on the insulation cabinet can be indirectly changed, so that the clamping part can adapt to insulation cabinets of different sizes and shapes, thereby improving the adaptability and flexibility of the equipment.

[0016] Optionally, the supporting component includes: A support plate, fixedly mounted on the inner wall of the cabinet; The reinforcing rib is fixedly arranged at the connection between the supporting plate and the cabinet body.

[0017] By adopting the above technical solution, the support plate serves as the main load-bearing structure and is fixed to the inner wall of the cabinet, so as to effectively disperse and withstand the pressure and load from the inside of the cabinet. The setting of the reinforcing ribs further enhances the strength of the connection between the support plate and the cabinet, preventing deformation or damage caused by long-term stress or external force impact. The setting of the reinforcing ribs further enhances the strength of the connection between the support plate and the cabinet, preventing deformation or damage caused by long-term stress or external force impact.

[0018] Optionally, a locking assembly is provided on the opening and closing door, and the locking assembly includes: An insertion rod, slidably connected to the opening and closing door; A clamping ring, fixedly mounted on the cabinet; Wherein, when the opening and closing door is closed, the insertion rod can be inserted into the clamping ring.

[0019] By adopting the above technical solution, when the opening and closing door is closed, the insertion rod is moved and inserted into the clamping ring, which can effectively prevent the door body from accidentally opening due to external force, thereby protecting the equipment and items in the cabinet from damage.

[0020] Optionally, a heat dissipation port is provided on the cabinet, and a dustproof grille is fixed on the heat dissipation port.

[0021] By adopting the above technical solution, the opening of the heat dissipation port allows the heat inside the cabinet to be discharged smoothly, reducing the operating temperature of the equipment, helping to improve the reliability and stability of the equipment, and reducing equipment failures caused by environmental factors.

[0022] Optionally, a pull rod is fixedly provided on the insertion rod.

[0023] By adopting the above technical solution, the insertion, extraction or adjustment of the plug rod can be conveniently achieved by pulling or pushing the pull rod, thereby improving the convenience of operation.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the sensing part, the driving part and the clamping part, and by the cooperation of the sensing part and the opening and closing door, it is convenient to change the insulation cabinet, thereby facilitating the replacement efficiency of the insulation cabinet; 2. By setting support plates and reinforcing ribs, the pressure and load from inside the cabinet can be effectively dispersed and borne, preventing deformation or damage caused by long-term stress or external impact; 3. By setting the plug rod and the clamp ring, the door can be effectively prevented from accidentally opening due to external force, thereby protecting the equipment and items in the cabinet from damage; 4. By providing an adjustment plate, a slide rod and an adjustment spring, the clamping part can adapt to insulating cabinets of different sizes and shapes, thereby improving the adaptability and flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a schematic diagram of the structure of the locking assembly in an embodiment of the present application; Figure 3 yes Figure 2 Magnified view at A in the middle; Figure 4 It is a cross-sectional view of the adjustment component in the embodiment of the present application.

[0026] Description of reference numerals: 1. Cabinet; 11. Opening and closing door; 12. Dust grille; 2. Locking assembly; 21. Insertion rod; 211. Pull rod; 22. Snap ring; 3. Support assembly; 31. Support plate; 311. Slot; 32. Reinforcement rib; 4. Clamping assembly; 41. Sensing part; 411. Top block; 412. Sensing telescopic rod; 42. Driving part; 421. Enlarged telescopic rod one; 4211. Guide pipe; 422. Enlarged telescopic rod two; 4221. Connecting pipe; 423. Lever; 424. Support rod; 43. Clamping part; 431. Double-headed telescopic rod; 432. Connecting rod; 433. Clamping plate; 4331. Slide groove; 5. Adjustment assembly; 51. Adjustment plate; 52. Slide rod; 53. Adjustment spring. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-4 This application is described in further detail.

[0028] The present application embodiment discloses a gas insulated switch cabinet. Figures 1 to 3 A gas insulated switchgear comprises a cabinet 1, a locking assembly 2, a supporting assembly 3, a clamping assembly 4 and an adjusting assembly 5. One side of the cabinet 1 is open, and an opening and closing door 11 is rotatably connected to the open end; both ends of the locking assembly 2 are respectively connected to the cabinet 1 and the opening and closing door 11, and the locking assembly 2 is used to lock the opening and closing door 11; the supporting assembly 3 is arranged in the cabinet 1 and is used to support the insulating cabinet in the cabinet 1; the clamping assembly 4 is arranged in the cabinet 1 and is used to clamp the insulating cabinet; the adjusting assembly 5 is arranged on the clamping assembly 4 and is used to adjust the clamping force between the clamping assembly 4 and the insulating cabinet.

[0029] When in use, the locking assembly 2 opens the opening and closing door 11, and then the insulating cabinet is placed in the cabinet body 1, the supporting assembly 3 supports the insulating cabinet, and then the opening and closing door 11 is closed, the clamping assembly 4 clamps the insulating cabinet, and the adjusting assembly 5 adjusts the clamping force according to the size of the insulating cabinet, thereby preventing the insulating cabinet from shaking in the cabinet body 1; After the opening and closing door 11 is opened again, the clamping assembly 4 loosens the insulating cabinet, thereby facilitating the modification of the insulating cabinet and thus facilitating the replacement efficiency of the insulating cabinet.

[0030] Reference Figure 2 The cabinet 1 is in a rectangular box shape and is vertically arranged. Both side walls of the cabinet 1 in the length direction are provided with heat dissipation openings, and dustproof grilles 12 are fixed on the heat dissipation openings.

[0031] Reference Figure 1 and Figure 2 The locking assembly 2 includes an insertion rod 21 and a snap ring 22. The insertion rod 21 is slidably connected to the opening and closing door 11, and the sliding direction is the length direction of the cabinet 1. A pull rod 211 is fixed on the insertion rod 21, and the pull rod 211 is vertically arranged with the insertion rod 21; the snap ring 22 is fixed on the cabinet 1, and when the opening and closing door 11 is closed, the insertion rod 21 can be inserted into the snap ring 22.

[0032] Reference Figure 1 There are four groups of supporting components 3, and the four groups of supporting components 3 are evenly arranged around the vertical axis direction of the cabinet 1. The supporting components 3 include a supporting plate 31 and a reinforcing rib 32. The horizontal cross-section of the supporting plate 31 is a right-angled triangle. The supporting plate 31 is fixed on the inner wall of the cabinet 1 and is located at the connection between the two side walls of the cabinet 1.

[0033] The support plate 31 is provided with a slot 311 which matches the top corner of the insulation cabinet. The reinforcing rib 32 is vertically arranged and fixed at the connection between the support plate 31 and the cabinet 1, and two right angle sides are fixedly connected to the bottom end of the support plate 31 and the inner wall of the cabinet 1 respectively.

[0034] When in use, pull the pull rod 211 to slide horizontally, the pull rod 211 drives the insertion rod 21 to move, the insertion rod 21 disengages from the clamping ring 22, the opening and closing door 11 is opened, and the insulating cabinet is placed in the clamping groove 311 of the support plate 31, and the insulating cabinet is initially limited, thereby improving the stability of the insulating cabinet.

[0035] Reference Figure 1 and Figure 3 The clamping assembly 4 includes a sensing part 41, a driving part 42 and a clamping part 43. The sensing part 41 includes a top block 411 and a sensing telescopic rod 412. The top block 411 is in a round block shape and is vertically arranged. The top block 411 is fixed on the opening and closing door 11 and is located on the side of the opening and closing door 11 close to the inner cavity of the cabinet 1.

[0036] Reference Figure 1 The sensing telescopic rod 412 is horizontally arranged, and its axial direction is parallel to the width direction of the cabinet 1. The sensing telescopic rod 412 is fixed in the cabinet 1, and its movable end is arranged in a direction close to the top block 411. When the opening and closing door 11 is closed, the top block 411 can squeeze the movable end of the sensing telescopic rod 412 to move.

[0037] Reference Figure 1 and Figure 4The driving part 42 includes an amplifying telescopic rod 1 421, an amplifying telescopic rod 2 422, a lever 423 and a supporting rod 424. The amplifying telescopic rod 1 421 and the amplifying telescopic rod 2 422 are both vertically arranged and fixed in the cabinet 1. The amplifying telescopic rod 2 422 is located on one side of the amplifying telescopic rod 1 421. The rodless cavity of the amplifying telescopic rod 1 421 is connected with the rodless cavity of the inductive telescopic rod 412 through a guide tube 4211, and water flows through the two through the guide tube 4211.

[0038] Reference Figure 1 and Figure 4 The two ends of the lever 423 are respectively hinged to the movable ends of the enlarged telescopic rod 1 421 and the movable ends of the enlarged telescopic rod 2 422. The support rod 424 is vertically arranged, the bottom end of the support rod 424 is fixedly connected to the cabinet 1, and the top end is hinged to the lever 423, and the connection point between the support rod 424 and the lever 423 is arranged in a direction close to the enlarged telescopic rod 1 421.

[0039] Reference Figure 1 and Figure 3 There are two groups of clamping parts 43, and the two groups of clamping parts 43 are respectively located on the two inner side walls in the length direction of the cabinet 1. The clamping part 43 includes a double-headed telescopic rod 431 and a connecting rod 432. The double-headed telescopic rod 431 is horizontally arranged and parallel to the induction telescopic rod 412. The double-headed telescopic rod 431 is fixed on the inner wall of the cabinet 1. The rod cavity of the double-headed telescopic rod 431 is connected with the rodless cavity of the amplifying telescopic rod 422 through the connecting pipe 4221, and water flows through the two through the connecting pipe 4221.

[0040] There are two connecting rods 432, which are respectively hinged to the two movable ends of the double-head telescopic rod 431 and are arranged crosswise. Among them, one end of the two connecting rods 432 away from the movable end of the double-head telescopic rod 431 is hinged with a clamping plate 433, which is rectangular and vertically arranged.

[0041] Reference Figure 3 and Figure 4 The clamping plate 433 is provided with a slide groove 4331, and the length direction of the slide groove 4331 is arranged parallel to the length direction of the clamping plate 433. Two groups of adjustment components 5 are arranged, and the two groups of adjustment components 5 correspond to the two clamping plates 433 one by one.

[0042] Reference Figure 3 and Figure 4 The adjustment assembly 5 includes an adjustment plate 51, a slide bar 52 and an adjustment spring 53. The adjustment plate 51 is in a rectangular plate shape and is arranged parallel to the clamping plate 433. The adjustment plate 51 is located on a side of the clamping plate 433 away from the connecting rod 432. A plurality of slide bars 52 are provided, and the plurality of slide bars 52 are evenly arranged along the length direction of the slide slot 4331. One end of the slide bar 52 is fixedly connected to the adjustment plate 51, and the other end is slidably connected to the slide slot 4331.

[0043] Reference Figure 4 There are multiple adjustment springs 53, and the multiple adjustment springs 53 correspond to the multiple slide rods 52 one by one. One end of the adjustment spring 53 is fixedly connected to the bottom of the slide groove 4331, and the other end is fixedly connected to the slide rod 52. In the initial state, the adjustment spring 53 is in an extended state.

[0044] When in use, when the opening and closing door 11 is closed, the top block 411 squeezes the movable end of the sensing telescopic rod 412 to move, and the water in the rodless cavity of the sensing telescopic rod 412 enters the rodless cavity of the enlarged telescopic rod 421 from the guide tube 4211, and the water pushes the movable end of the enlarged telescopic rod 421 to move, and the movable end of the enlarged telescopic rod 421 pushes one end of the lever 423 to rotate; Under the action of the support rod 424, the lever 423 squeezes the movable end of the enlarged telescopic rod 422 to move, and the movable end of the enlarged telescopic rod 422 squeezes water from the connecting pipe 4221 to the rod cavity of the double-headed telescopic rod 431. The two movable ends of the double-headed telescopic rod 431 move towards each other, and the movable end drives the connecting rod 432 to rotate, and the connecting rod 432 drives the clamping plate 433 to move, and the clamping plate 433 drives the adjusting plate 51 to move, and the adjusting plate 51 is squeezed with the insulating cabinet. Under the elastic force of the adjusting spring 53, the position of the adjusting plate 51 in the slide groove 4331 is adjusted, so that the insulating cabinet is clamped, thereby facilitating the replacement efficiency of the insulating cabinet.

[0045] The implementation principle of a gas-insulated switch cabinet in the embodiment of the present application is as follows: the plug rod 21 is driven to move by the pull rod 211, the plug rod 21 is separated from the clamping ring 22, the opening and closing door 11 is opened, and then the insulation cabinet is placed in the clamping groove 311 of the support plate 31, and then the opening and closing door 11 is closed, the top block 411 squeezes the active end of the sensing telescopic rod 412 to move, and the water in the rodless cavity of the sensing telescopic rod 412 squeezes the active end of the amplified telescopic rod 421 through the guide tube 4211 to move, and the active end of the amplified telescopic rod 421 pushes one end of the lever 423 to rotate; Under the action of the support rod 424, the lever 423 squeezes and amplifies the movable end of the telescopic rod 422 to move, and through the connecting pipe 4221, the water in the rodless cavity of the telescopic rod 422 squeezes the two movable ends of the double-headed telescopic rod 431 to move towards each other, so that the connecting rod 432 drives the clamping plate 433 to move, and the clamping plate 433 drives the adjusting plate 51 to move, and the adjusting plate 51 is squeezed with the insulating cabinet. Under the elastic force of the adjusting spring 53, the position of the adjusting plate 51 in the slide groove 4331 is adjusted, so that the insulating cabinet is clamped, thereby making it easy to improve the replacement efficiency of the insulating cabinet.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gas insulated switchgear, characterized in that: include: The cabinet (1) has an opening on one side, and the opening end is rotatably connected to an opening and closing door (11); A plurality of supporting components (3) are provided, wherein the plurality of supporting components (3) are arranged around the vertical axis direction of the cabinet (1), and the supporting components (3) are arranged in the cabinet (1) and are used to support the insulating cabinet in the cabinet (1); The clamping assembly (4) comprises: A sensing portion (41), the two ends of which are respectively connected to the cabinet (1) and the opening and closing door (11), and are used to sense the opening and closing states of the opening and closing door (11); A driving unit (42) is disposed in the cabinet (1), the driving unit (42) responds to the opening and closing signal output by the sensing unit (41), and is used to control the movement of the clamping unit (43); The clamping parts (43) are provided in multiple groups, and the multiple groups of the clamping parts (43) are arranged around the insulation cabinet. The clamping parts (43) are arranged in the cabinet body (1) and are used to clamp the insulation cabinet.

2. A gas insulated switchgear according to claim 1, characterized in that: The sensing part (41) comprises: A top block (411) is fixedly mounted on the opening and closing door (11) and is located on a side of the opening and closing door (11) close to the inner cavity of the cabinet (1); The inductive telescopic rod (412) is fixedly arranged in the cabinet (1), and the movable end is arranged in a direction close to the top block (411); when the opening and closing door (11) is closed, the top block (411) can press the movable end of the inductive telescopic rod (412) to move.

3. A gas insulated switchgear according to claim 2, characterized in that: The driving unit (42) comprises: A magnifying telescopic rod (421) is fixedly arranged in the cabinet (1), and the rodless cavity is connected to the rodless cavity of the sensing telescopic rod (412) via a guide tube (4211); A second enlarged telescopic rod (422) is fixedly mounted in the cabinet (1) and is located on one side of the first enlarged telescopic rod (421); A lever (423), both ends of which are respectively hinged to the movable end of the first amplifying telescopic rod (421) and the movable end of the second amplifying telescopic rod (422); A support rod (424) has one end fixedly connected to the cabinet (1) and the other end hinged to the lever (423), and a connection point between the support rod (424) and the lever (423) is arranged in a direction close to the first enlarged telescopic rod (421).

4. A gas insulated switchgear according to claim 3, characterized in that: The clamping portion (43) comprises: A double-ended telescopic rod (431) is fixedly mounted on the inner wall of the cabinet (1), and the rod cavity of the double-ended telescopic rod (431) is connected to the rodless cavity of the second enlarged telescopic rod (422) via a connecting pipe (4221); Two connecting rods (432) are provided, and the two connecting rods (432) are respectively hinged to the two movable ends of the double-head telescopic rod (431); Wherein, one end of the two connecting rods (432) away from the movable end of the double-head telescopic rod (431) is hingedly connected to a clamping plate (433).

5. A gas insulated switchgear according to claim 4, characterized in that: The clamping plate (433) is provided with a slide groove (4331), and an adjustment component (5) is also arranged in the slide groove (4331). The adjustment component (5) comprises: An adjustment plate (51) disposed on a side of the clamping plate (433) away from the connecting rod (432); A plurality of sliding rods (52) are provided, and the plurality of sliding rods (52) are arranged along the length direction of the sliding groove (4331); one end of the sliding rod (52) is fixedly connected to the adjustment plate (51), and the other end is slidably connected to the sliding groove (4331); A plurality of adjusting springs (53) are provided, and the plurality of adjusting springs (53) correspond one-to-one to the plurality of sliding rods (52). One end of the adjusting spring (53) is fixedly connected to the bottom of the sliding groove (4331), and the other end is fixedly connected to the sliding rod (52). In an initial state, the adjusting spring (53) is in an extended state.

6. The gas insulated switchgear according to claim 1, characterized in that: The supporting component (3) comprises: A support plate (31) is fixedly mounted on the inner wall of the cabinet (1); The reinforcing rib (32) is fixedly arranged at the connection between the support plate (31) and the cabinet body (1).

7. The gas insulated switchgear according to claim 1, characterized in that: The opening and closing door (11) is provided with a locking assembly (2), and the locking assembly (2) comprises: An insertion rod (21) slidably connected to the opening and closing door (11); A clamping ring (22) fixedly mounted on the cabinet (1); When the opening and closing door (11) is closed, the insertion rod (21) can be inserted into the clamping ring (22).

8. The gas insulated switchgear according to claim 1, characterized in that: The cabinet (1) is provided with a heat dissipation opening, and a dustproof grille (12) is fixedly provided on the heat dissipation opening.

9. The gas insulated switchgear according to claim 7, characterized in that: A pull rod (211) is fixedly provided on the insertion rod (21).