Locking device of switch cabinet and switch cabinet

Abstract

The utility model discloses a locking device of a switch cabinet and the switch cabinet, and relates to the technical field of switch cabinets, the locking device of the switch cabinet comprises a mounting seat and an isolation structure; wherein the mounting base extends in the vertical direction, an opening is formed in the mounting base, and a connecting lug and a locking lug are arranged at the two ends of the mounting base in the transverse direction respectively; the isolation structure comprises an isolation plate, the two ends of the isolation plate in the transverse direction are provided with a connecting part and a locking part respectively, the connecting part is hinged to the connecting lug so that the locking part can rotate around the connecting lug between the locking position and the unlocking position, the locking part located at the locking position can be locked to the locking lug, and the locking part located at the unlocking position can be unlocked from the locking lug. A movable cavity is defined by the locking part located at the locking position, the mounting base, the isolation plate and the connecting part, the movable cavity is communicated with the opening, and the interlocking baffle can stretch into the movable cavity from the opening. According to the locking device of the switch cabinet, misoperation of an operator on a grounding switch in a manual mode is avoided, the safety is high, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a locking device of a switch cabinet and the switch cabinet. Background Art

[0002] The reliability of power supply is guaranteed by the safe operation of power supply equipment, and high-voltage electrical equipment must meet the reliable "five protection" requirements. In today's era of automation in many aspects, in order to power on more reliably, safely and conveniently, the grounding switch in the switch cabinet is usually remotely controlled by electric means. However, operators often use manual methods to misoperate the grounding switch of the switch cabinet, which is less safe and has great potential safety hazards. Utility Model Content

[0003] The main purpose of the utility model is to provide a locking device for a switch cabinet and a switch cabinet, aiming to solve the technical problem that in the existing switch cabinet, operators often manually misoperate the grounding switch of the switch cabinet, resulting in safety hazards and poor safety.

[0004] In order to achieve the above-mentioned object, the utility model provides a locking device for a switch cabinet, wherein the locking device is used to lock a grounding switch of the switch cabinet, wherein the grounding switch has an interlocking baffle, and the locking device comprises:

[0005] A mounting seat, the mounting seat is extended in the vertical direction, an opening is formed on the mounting seat, and connecting ears and locking ears are respectively provided at two ends of the mounting seat in the horizontal direction;

[0006] An isolation structure, wherein the isolation structure includes an isolation plate, and the isolation plate is respectively provided with a connecting portion and a locking portion at both ends along the horizontal direction, and the connecting portion is hinged to the connecting ear so that the locking portion can rotate around the connecting ear between a locking position and an unlocking position, wherein the locking portion located at the locking position can be locked to the locking ear, and the locking portion located at the locking position and the mounting seat, the isolation plate and the connecting portion are combined to form an active cavity, the active cavity is connected to the opening, and the interlocking baffle can extend into the active cavity from the opening.

[0007] In one embodiment, the locking ear includes an outer guard plate and a first locking plate, the outer guard plate is extended in the longitudinal direction, one end of the outer guard plate is connected to an end of the mounting seat away from the connecting ear in the transverse direction, and the first locking plate is extended in the transverse direction and connected to the outer guard plate; the locking portion includes an inner guard plate and a second locking plate, the inner guard plate is extended in the longitudinal direction, one end of the inner guard plate in the longitudinal direction is connected to an end of the isolation plate away from the connecting portion, and the other end of the inner guard plate in the longitudinal direction is connected to the second locking plate, the second locking plate is extended in the transverse direction, the inner guard plate is transversely stacked on a side of the outer guard plate close to the active cavity when the locking portion is in the locking position, and the second locking plate is vertically stacked and locked to a side of the second locking plate close to the active cavity when the locking portion is in the locking position.

[0008] In one embodiment, a first locking hole is formed on the first locking plate, and a second locking hole is formed on the second locking plate. The first locking hole and the second locking hole are aligned when the locking portion is in the locking position. The locking component is a padlock, and a locking shaft of the padlock passes through the first locking hole and the second locking hole to lock the first locking plate to the second locking plate.

[0009] In one embodiment, the locking portion is hinged to the locking ear via a hinge shaft extending vertically.

[0010] In one embodiment, the connecting ear includes an ear plate and two outer hinge plates, the ear plate is arranged at one end of the mounting base laterally away from the locking ear, the two outer hinge plates are vertically spaced and connected to the ear plate to enclose a hinge cavity, the connecting part is arranged in the hinge cavity, and the hinge axis vertically passes through the connecting part and the two outer hinge plates to hinge the connecting part to the two outer hinge plates.

[0011] In one embodiment, the connecting portion includes a connecting plate and two inner hinged plates, one end of the connecting plate is connected to one end of the isolation plate laterally away from the locking portion, and the other end of the connecting plate is connected to the two inner hinged plates, the two inner hinged plates are vertically spaced apart in the hinge cavity and respectively abut against the two outer hinged plates, and the hinge shaft vertically passes through the two outer hinged plates and the two inner hinged plates to hinge the two inner hinged plates to the two outer hinged plates respectively.

[0012] In one embodiment, two limit plates are respectively formed at two ends of the hinge shaft in the vertical direction, and the two limit plates are respectively abutted against one side of the two outer hinge plates away from the hinge cavity.

[0013] In one embodiment, a positioning assembly is disposed on the mounting seat, and the positioning assembly is used to position the locking device at the grounding switch.

[0014] In one embodiment, two positioning blocks are vertically spaced apart on the switch cabinet, and the positioning assembly includes two positioning holes vertically spaced apart and opened on the mounting seat, and the two positioning holes are respectively used for inserting two positioning blocks to position the locking device on the switch cabinet.

[0015] In a second aspect, the utility model further proposes a switch cabinet, wherein the switch cabinet is equipped with the above-mentioned locking device of the switch cabinet, and the locking device is arranged close to the grounding switch of the switch cabinet.

[0016] The technical solution of the utility model is to arrange a mounting seat extending in the up-down direction near the grounding switch of the switch cabinet, so that the interlocking baffle of the grounding switch can extend from the opening into the active cavity, and the interlocking baffle can move in the active cavity, so that the grounding switch can be opened or closed, thereby allowing the grounding switch to be controlled by electric remote control. An isolation structure is arranged on the mounting seat, and the isolation structure includes an isolation plate, and the two ends of the isolation plate in the transverse direction are respectively provided with a locking part and a connecting part, and the connecting part is hinged on the connecting ear of the mounting seat. The locking part can rotate around the connecting ear to a locking position or an unlocking position. When in the locking position, the locking part is locked on the locking ear, so that the locking part, the isolation plate, the connecting part and the mounting seat are enclosed to form an active cavity. The interlocking baffle can be enclosed in the active cavity and effectively isolated from the outside world by the locking part, the isolation plate and the connecting part, so as to avoid the operator from misoperating the interlocking baffle manually, thereby avoiding the operator from misoperating the grounding switch, and having high safety and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A structural schematic diagram of an embodiment of a locking device for a switch cabinet provided by the utility model;

[0019] Figure 2 A schematic structural diagram of an embodiment of a switch cabinet provided by the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the local structure at point A in the middle.

[0021] Description of Figure Numbers:

[0022] 100, locking device; 10, mounting seat; 11, opening; 12, connecting ear; 121, ear plate; 122, outer hinged plate; 123, hinged cavity; 13, locking ear; 131, outer protective plate; 132, first locking plate; 1321, first locking hole; 14, positioning assembly; 141, positioning hole; 20, isolation structure; 21, isolation plate; 22, connecting part; 221, connecting plate; 222, inner hinged plate; 23, locking part; 231, inner protective plate; 232, second locking plate; 2321, second locking hole; 30, movable cavity; 40, hinged shaft; 41, limit plate; 200, switch cabinet; 201, grounding switch; 202, interlocking baffle; 203, positioning block.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0027] The utility model provides a locking device 100 for a switch cabinet 200 .

[0028] See also Figures 1 to 3 In one embodiment of the utility model, the locking device 100 of the switch cabinet 200 is used to lock the grounding switch 201 of the switch cabinet 200. The grounding switch 201 has an interlocking baffle 202. The locking device 100 includes a mounting seat 10 and an isolation structure 20; wherein the mounting seat 10 is vertically extended, an opening 11 is formed on the mounting seat 10, and connecting ears 12 and locking ears 13 are respectively provided at both ends of the mounting seat 10 in the horizontal direction; the isolation structure 20 includes an isolation plate 21, and the isolation plate A connecting portion 22 and a locking portion 23 are respectively provided at both ends of 21 along the horizontal direction, and the connecting portion 22 is hinged to the connecting ear 12 so that the locking portion 23 can rotate around the connecting ear 12 between a locking position and an unlocking position, wherein the locking portion 23 located at the locking position can be locked to the locking ear 13, and the locking portion 23 located at the locking position is enclosed with the mounting seat 10, the isolation plate 21 and the connecting portion 22 to form an active cavity 30, and the active cavity 30 is connected to the opening 11, and the interlocking baffle 202 can extend into the active cavity 30 from the opening 11.

[0029] Vertical Figure 1 The vertical direction is Figure 1 The front-to-back direction is Figure 1 The left and right direction in .

[0030] The technical solution of the utility model is to arrange a mounting seat 10 extending in the up-down direction near the grounding switch 201 of the switch cabinet 200, so that the interlocking baffle 202 of the grounding switch 201 can extend from the opening 11 into the active cavity 30, and the interlocking baffle 202 can move in the active cavity 30, so that the grounding switch 201 can be opened or closed, thereby allowing the grounding switch 201 to be controlled by electric remote control. An isolation structure 20 is arranged on the mounting seat 10, and the isolation structure 20 includes an isolation plate 21, and the left and right ends of the isolation plate 21 are respectively provided with a locking portion 23 and a connecting portion 22, and the connecting portion 22 is hinged to the connecting ear 12 at the right end of the mounting seat 10. The locking part 23 can rotate around the connecting ear 12 to a locking position or an unlocking position. When in the locking position, the locking part 23 is locked on the locking ear 13, so that the locking part 23, the isolation plate 21, the connecting part 22 and the mounting seat 10 enclose the active cavity 30. The interlocking baffle 202 can be enclosed in the active cavity 30 and effectively isolated from the outside world through the locking part 23, the isolation plate 21 and the connecting part 22, so as to prevent the operator from misoperating the interlocking baffle 202 manually, thereby preventing the operator from misoperating the grounding switch 201, with high safety and reduced safety hazards. By unlocking the locking part 23 on the locking ear 13, the locking part 23 can be moved to the unlocking position, and the active cavity 30 can be opened for the operator to operate the interlocking baffle 202, which is simple and convenient.

[0031] Furthermore, the switch cabinet 200 may be a high-voltage switch cabinet 200 , and the high-voltage switch cabinet 200 may adopt the KYN61-40.5 switch cabinet 200 in the prior art.

[0032] In one embodiment of the utility model, the locking ear 13 includes an outer protective plate 131 and a first locking plate 132, the outer protective plate 131 is extended in the longitudinal direction, one end of the outer protective plate 131 is connected to the end of the mounting seat 10 away from the connecting ear 12 in the transverse direction, and the first locking plate 132 is extended in the transverse direction and connected to the outer protective plate 131; the locking portion 23 includes an inner protective plate 231 and a second locking plate 232, the inner protective plate 231 is extended in the longitudinal direction, and the inner protective plate 231 is extended in the transverse direction. One longitudinal end is connected to one end of the isolation plate 21 away from the connecting part 22, and the other longitudinal end of the inner enclosure plate 231 is connected to the second locking plate 232. The second locking plate 232 is extended in the transverse direction. When the locking part 23 is in the locked position, the inner enclosure plate 231 is stacked in the transverse direction on the side of the outer enclosure plate 131 close to the active cavity 30. When the locking part 23 is in the locked position, the second locking plate 232 is stacked in the vertical direction and locked to the side of the second locking plate 232 close to the active cavity 30.

[0033] Specifically, Figure 1As shown, the outer protective plate 131 is extended in the front-to-back direction, the rear end of the outer protective plate 131 is connected to the left end of the mounting seat 10, and the lower end of the outer protective plate 131 is connected to the first locking plate 132 extending in the left-right direction; the inner protective plate 231 is extended in the front-to-back direction, the front end of the inner protective plate 231 is connected to the left end of the isolation plate 21, and the lower end of the inner protective plate 231 is connected to the second locking plate 232 extending in the left-right direction; when the locking portion 23 is in the locked position, the inner protective plate The inner enclosure 231 is stacked on the right side of the outer enclosure 131, and the second lock plate 232 is stacked on the upper side of the first lock plate 132. The inner enclosure 231 and the outer enclosure 131 can isolate the left side of the interlocking baffle 202 extending into the active cavity 30 from the outside, and the second lock plate 232 and the first lock plate 132 can isolate the lower side of the interlocking baffle 202 extending into the active cavity 30 from the outside, which can more effectively prevent the operator from misoperating the interlocking baffle 202, with better isolation effect and higher safety. The first lock plate 132 and the second lock plate 232 are located on the lower side of the interlocking baffle 202 and are locked by the lock member, which can effectively prevent the lock member and the interlocking baffle from interfering, and the structure is reasonable.

[0034] In one embodiment of the utility model, a first locking hole 1321 is formed on the first locking plate 132, and a second locking hole 2321 is formed on the second locking plate 232. The first locking hole 1321 and the second locking hole 2321 are aligned when the locking portion 23 is in the locking position. The locking component is a padlock, and the locking shaft of the padlock passes through the first locking hole 1321 and the second locking hole 2321 to lock the first locking plate 132 to the second locking plate 232.

[0035] Specifically, Figure 1 As shown, the first locking plate 132 is provided with a first locking hole 1321 that penetrates the first locking plate 132 along the up-down direction, and the second locking plate 232 is provided with a second locking hole 2321 that penetrates the second locking plate 232 along the up-down direction. The locking component is a padlock. When the locking portion 23 is in the locking position, the first locking hole 1321 and the second locking hole 2321 are aligned. The locking shaft of the padlock is passed through the first locking hole 1321 and the second locking hole 2321, so that the second locking plate 232 can be locked to the first locking plate 132, which is simple and convenient.

[0036] In an embodiment of the present invention, the locking portion 23 is hinged to the locking ear 13 via a hinge shaft 40 extending vertically.

[0037] Specifically, Figure 1 As shown, the hinge shaft 40 is extended in the up-down direction, and the locking portion 23 is hinged to the locking ear 13 through the hinge shaft 40, which has a simple structure and convenient hinge.

[0038] In one embodiment of the utility model, the connecting ear 12 includes an ear plate 121 and two outer hinge plates 122. The ear plate 121 is arranged at one end of the mounting base 10 which is laterally away from the locking ear 13. The two outer hinge plates 122 are vertically spaced and connected to the ear plate 121 to enclose a hinge cavity 123. The connecting part 22 is arranged in the hinge cavity 123. The hinge shaft 40 vertically passes through the connecting part 22 and the two outer hinge plates 122 to hinge the connecting part 22 to the two outer hinge plates 122.

[0039] Specifically, Figure 1 As shown, the ear plate 121 extends in the left-right direction and is connected to the right end of the mounting base 10, and two outer hinge plates 122 are connected to the ear plate 121. The two outer hinge plates 122 are spaced apart in the up-down direction and enclose a hinge cavity 123, and the connecting portion 22 is arranged in the hinge cavity 123. The hinge shaft 40 passes through the connecting portion 22 and the two outer hinge plates 122 in the up-down direction so that the connecting portion 22 is hinged to the two outer hinge plates 122, and the hinge has better stability.

[0040] In one embodiment of the utility model, the connecting portion 22 includes a connecting plate 221 and two inner hinged plates 222, one end of the connecting plate 221 is connected to one end of the isolation plate 21 laterally away from the locking portion 23, and the other end of the connecting plate 221 is connected to the two inner hinged plates 222, the two inner hinged plates 222 are vertically spaced apart in the hinge cavity 123 and respectively abut against the two outer hinged plates 122, and the hinge shaft 40 vertically passes through the two outer hinged plates 122 and the two inner hinged plates 222 to hinge the two inner hinged plates 222 to the two outer hinged plates 122 respectively.

[0041] Specifically, Figure 1 As shown, the connecting part 22 includes a connecting plate 221 and two inner hinged plates 222. The left end of the connecting plate 221 is connected to the right end of the isolation plate 21, and the right end of the connecting plate 221 is connected to two inner hinged plates 222. The inner hinged plates 222 are spaced apart in the up-down direction. The two inner hinged plates 222 are arranged in the hinge cavity 123, and the two inner hinged plates 222 are respectively abutted against one side of the two outer hinged plates 122 close to the hinge cavity 123, but do not affect the rotation of the inner hinged plates 222 relative to the outer hinged plates 122 abutting therewith. The two outer hinged plates 122 and the two inner hinged plates 222 are penetrated by hinge shafts 40 extending in the up-down direction to hinge the two inner hinged plates 222 to the two outer hinged plates 122 respectively, so that the hinge has better stability.

[0042] In an embodiment of the present invention, two limit plates 41 are respectively formed at two ends of the hinge shaft 40 in the vertical direction, and the two limit plates 41 are respectively abutted against one side of the two outer hinge plates 122 away from the hinge cavity 123 .

[0043] Specifically, Figure 1As shown, two limit plates 41 are formed at the upper and lower ends of the hinge shaft 40, respectively. The two limit plates 41 are respectively abutted against the side of the two outer hinge plates 122 away from the hinge cavity 123, thereby limiting the hinge shaft 40 to the two outer hinge plates 122, effectively preventing the hinge shaft 40 from falling off the two outer hinge plates 122, and improving reliability.

[0044] In an embodiment of the utility model, a positioning assembly 14 is provided on the mounting base 10, and the positioning assembly 14 is used to position the locking device 100 at the grounding switch 201. Specifically, the locking device 100 can be quickly positioned at the grounding switch 201 through the positioning assembly 14, which is simple and convenient.

[0045] In one embodiment of the utility model, two positioning blocks 203 are vertically spaced apart on the switch cabinet 200, and the positioning assembly 14 includes two positioning holes 141 vertically spaced apart and opened on the mounting base 10, and the two positioning holes 141 are respectively used for inserting the two positioning blocks 203 to position the locking device 100 on the switch cabinet 200.

[0046] Specifically, Figures 1 to 3 As shown, two positioning holes 141 are provided on the base along the up and down directions, and the two positioning holes 141 are respectively arranged on the upper and lower sides of the opening 11. By inserting the two positioning blocks 203 on the switch cabinet 200 into the two positioning holes 141 respectively, the locking device 100 can be quickly positioned at the grounding switch 201, which is simple and convenient.

[0047] The utility model also provides a switch cabinet 200, which includes a locking device 100 of the switch cabinet 200. The specific structure of the locking device 100 of the switch cabinet 200 refers to the above embodiment. Since the locking device 100 of the switch cabinet 200 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the locking device 100 is set close to the grounding switch 201 of the switch cabinet 200.

[0048] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A locking device for a switch cabinet, characterized in that: The locking device is used to lock the grounding switch of the switch cabinet, the grounding switch has an interlocking baffle, and the locking device includes: A mounting seat, the mounting seat is extended in the vertical direction, an opening is formed on the mounting seat, and connecting ears and locking ears are respectively provided at two ends of the mounting seat in the horizontal direction; An isolation structure, wherein the isolation structure includes an isolation plate, and the isolation plate is respectively provided with a connecting portion and a locking portion at both ends along the horizontal direction, and the connecting portion is hinged to the connecting ear so that the locking portion can rotate around the connecting ear between a locking position and an unlocking position, wherein the locking portion located at the locking position can be locked to the locking ear, and the locking portion located at the locking position and the mounting seat, the isolation plate and the connecting portion are combined to form an active cavity, the active cavity is connected to the opening, and the interlocking baffle can extend into the active cavity from the opening.

2. The locking device of the switch cabinet according to claim 1, characterized in that: The locking ear includes an outer guard plate and a first locking plate, the outer guard plate extending longitudinally, one end of the outer guard plate being connected to an end of the mounting seat laterally away from the connecting ear, and the first locking plate extending laterally and connected to the outer guard plate; the locking portion includes an inner guard plate and a second locking plate, the inner guard plate extending longitudinally, one end of the inner guard plate along the longitudinal direction being connected to an end of the isolation plate away from the connecting portion, and the other end of the inner guard plate along the longitudinal direction being connected to the second locking plate, the second locking plate extending laterally, the inner guard plate being laterally stacked on a side of the outer guard plate close to the active cavity when the locking portion is in the locking position, and the second locking plate being vertically stacked and locked to a side of the second locking plate close to the active cavity when the locking portion is in the locking position.

3. The locking device of the switch cabinet according to claim 2, characterized in that: A first locking hole is provided on the first locking plate, and a second locking hole is provided on the second locking plate. The first locking hole and the second locking hole are aligned when the locking portion is in the locking position. The locking component is a padlock, and the locking shaft of the padlock passes through the first locking hole and the second locking hole to lock the first locking plate to the second locking plate.

4. The locking device of the switch cabinet according to claim 1, characterized in that: The locking portion is hinged to the locking ear through a hinge shaft extending vertically.

5. The locking device of the switch cabinet according to claim 4, characterized in that: The connecting ear includes an ear plate and two outer hinge plates, the ear plate is arranged at one end of the mounting base laterally away from the locking ear, the two outer hinge plates are vertically spaced and connected to the ear plate to enclose a hinge cavity, the connecting part is arranged in the hinge cavity, and the hinge axis vertically passes through the connecting part and the two outer hinge plates to hinge the connecting part to the two outer hinge plates.

6. The locking device of the switch cabinet according to claim 5, characterized in that: The connecting part includes a connecting plate and two inner hinged plates, one end of the connecting plate is connected to one end of the isolation plate laterally away from the locking part, and the other end of the connecting plate is connected to the two inner hinged plates, the two inner hinged plates are vertically spaced in the hinge cavity and respectively abut against the two outer hinged plates, and the hinge shaft vertically passes through the two outer hinged plates and the two inner hinged plates to hinge the two inner hinged plates to the two outer hinged plates respectively.

7. The locking device of the switch cabinet according to claim 5, characterized in that: Two limit plates are respectively formed at two ends of the hinge shaft in the vertical direction, and the two limit plates are respectively abutted against one side of the two outer hinge plates away from the hinge cavity.

8. The locking device for a switch cabinet according to any one of claims 1 to 7, characterized in that: A positioning assembly is arranged on the mounting seat, and the positioning assembly is used to position the locking device at the grounding switch.

9. The locking device of the switch cabinet according to claim 8, characterized in that: Two positioning blocks are vertically spaced apart on the switch cabinet, and the positioning assembly comprises two positioning holes vertically spaced apart and opened on the mounting seat, and the two positioning holes are respectively used for inserting two positioning blocks to position the locking device on the switch cabinet.

10. A switch cabinet, characterized in that: The switch cabinet is equipped with a locking device for a switch cabinet according to any one of claims 1 to 9, and the locking device is close to a grounding switch of the switch cabinet.

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