A switch cabinet device for door lock controlled grounding protection and maintenance method thereof

Abstract

The present invention relates to the technical field of intelligent switch cabinets, and specifically to a switch cabinet device with grounding protection controlled by a door lock and a maintenance method thereof, comprising: a cabinet body, and a cabinet door rotatably mounted on the cabinet body, a handle rotatably mounted on the cabinet door, and a fixed plate arranged in the cabinet body; a rotating sleeve rotatably mounted on the fixed plate, a grounding rod slidably mounted in the rotating sleeve, a moving contact is arranged at the end of the grounding rod, and a static contact cooperating with the moving contact is arranged in the cabinet body; a door lock assembly is arranged in the cabinet body and connected to the handle, and a lifting and locking mechanism connected to the grounding rod is arranged on the rotating sleeve; a guide assembly is arranged on the fixed plate and connected to the lifting and locking mechanism; a limit assembly is arranged on the cabinet body and connected to the rotating sleeve, and a support rod is connected to the limit assembly; a clamping assembly is arranged in the cabinet body and connected to the grounding rod and the door lock assembly. The present invention can automatically perform grounding protection when the cabinet door is opened, and limit the closing of the cabinet door by the support rod.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent switch cabinets, and in particular to switch cabinet equipment for controlling grounding protection with a door lock and a maintenance method thereof. Background Art

[0002] The switch cabinet is an electrical equipment. 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. Such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage room switch cabinets, with high-voltage busbars, such as power plants, etc. Some also have low-frequency load shedding to protect the main equipment.

[0003] When the switch cabinet is being repaired, grounding protection is required. The cabinet door can only be opened after the power is cut off. After the cabinet door is opened, the fixed grounding wire fixing coil is tightened with bolts through threads. After the maintenance is completed, if the operator makes an error and the grounding wire is not removed, the cabinet door will be closed and the switch will be closed. This will cause the risk of electric shock during the continued use of the switch cabinet. Summary of the invention

[0004] The object of the present invention is to provide a switch cabinet device for door lock controlled grounding protection and a maintenance method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A switch cabinet device for door lock controlled grounding protection, comprising:

[0007] A cabinet body, and a cabinet door rotatably mounted on the cabinet body, a handle rotatably mounted on the cabinet door, and a fixing plate mounted in the cabinet body;

[0008] Also includes:

[0009] A rotating sleeve is rotatably mounted on the fixed plate, a grounding rod is slidably mounted in the rotating sleeve, a moving contact is arranged at the end of the grounding rod, and a static contact cooperating with the moving contact is arranged in the cabinet;

[0010] A door lock assembly is arranged in the cabinet and connected to the handle, and a lifting and locking mechanism connected to the door lock assembly and the grounding rod is arranged on the rotating sleeve, and the lifting and locking mechanism can adjust the matching state of the moving contact and the static contact through the grounding rod when the door lock assembly moves;

[0011] A guide assembly, disposed on the fixing plate and connected to the lifting and locking mechanism, for guiding the grounding rod to move along the length direction of the rotating sleeve;

[0012] A limit assembly is arranged on the cabinet body and connected to the rotating sleeve. A support rod is connected to the limit assembly. When the rotating sleeve rotates, the limit assembly can control the support rod to move to a position matching with the cabinet door;

[0013] The clamping assembly is arranged in the cabinet and connected with the grounding rod and the door lock assembly, and is used to limit the position of the grounding rod.

[0014] As a further solution of the present invention: the door lock assembly includes a rotating plate rotatably installed in the cabinet and coaxially connected to the handle, a torsion spring is sleeved on the rotating shaft of the rotating plate, and a limiting wheel is arranged on the rotating plate.

[0015] As a further solution of the present invention: the lifting and locking mechanism includes a through groove opened on the rotating sleeve, the grounding rod is provided with a limit ring slidingly connected to the rotating sleeve, the limit ring is provided with a limit rod passing through the through groove, the limit rod is in abutment with the rotating plate, and the rotating sleeve is provided with a support assembly connected to the limit ring.

[0016] As a further solution of the present invention: the support assembly includes a movable ring installed on the grounding rod and slidably connected to the through slot, a movable plate is movably installed on the rotating sleeve, a No. 1 spring is sleeved on the rotating sleeve, and two ends of the No. 1 spring are respectively in contact with the movable ring and the movable plate;

[0017] It also includes a spiral groove opened on the rotating sleeve, a No. 1 protrusion slidably connected to the spiral groove is arranged in the movable plate, and a sliding structure connected to the grounding rod is arranged in the rotating sleeve.

[0018] As a further solution of the present invention: the sliding structure includes a straight groove and an annular groove provided on the grounding rod, and a No. 2 protrusion is provided on the inner wall of the rotating sleeve, and the No. 2 protrusion can slide along the straight groove and the annular groove.

[0019] As a further solution of the present invention: the guide assembly includes a guide rod installed on the fixed plate, a No. 1 guide sleeve and a No. 2 guide sleeve are slidably installed on the guide rod, the No. 2 guide sleeve is fixedly connected to the movable plate, and the No. 1 guide sleeve is provided with a connecting plate fixedly connected to the grounding rod.

[0020] As a further solution of the present invention: the limit assembly includes a slide groove provided on the cabinet, a sliding block is slidably installed in the slide groove, and the sliding block is fixedly connected to the support rod;

[0021] It also includes a rack plate installed on the sliding block, and the rotating sleeve is provided with a gear meshing with the rack plate.

[0022] As a further solution of the present invention: the clamping assembly includes a supporting sleeve installed in the cabinet, a movable rod is slidably installed in the supporting sleeve, an inclined plate is provided on the movable rod, the inclined plate is in abutment with the limiting wheel, and a No. 2 spring is sleeved on the movable rod and abuts against the inclined plate;

[0023] It also includes a limiting hole opened on the grounding rod, and the limiting hole cooperates with the movable rod.

[0024] A maintenance method for a switch cabinet device with door lock controlled grounding protection comprises the following steps:

[0025] Step 1: When maintenance is required, the handle can be manually controlled to rotate, and the door lock assembly can be driven to move, thereby driving the lifting and locking mechanism to move;

[0026] Step 2: Under the action of the lifting and locking mechanism, the grounding rod is controlled to move, and under the action of the guide assembly, the grounding rod is moved along the length direction of the rotating sleeve, so that the moving contact moves toward the static contact;

[0027] Step 3: When the moving contact moves to the abutting position with the stationary contact, the grounding rod is fixed under the action of the clamping assembly to ensure that the moving contact will not be separated from the stationary contact;

[0028] Step 4: At this time, the cabinet door can be opened, and under the action of the lifting and locking mechanism, the limit assembly is driven to move to control the extension of the support rod, thereby limiting the closing of the cabinet door. At this time, the switch cabinet can be inspected and repaired.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application can automatically connect the grounding protection during maintenance, and ensure that the cabinet door will not be closed during maintenance. When the switch cabinet needs to be repaired, the lifting and locking mechanism is controlled to move under the action of the door lock assembly, and the moving contact is controlled to move toward the static contact through the grounding rod. Under the action of the guide assembly, it is ensured that the grounding rod will not deviate during movement. When the moving contact moves to the position abutting the static contact, the position of the grounding rod is automatically locked under the action of the lifting and locking mechanism. At the same time, under the action of the locking assembly, the grounding rod is further locked. The lifting and locking mechanism will also drive the limit assembly to move, and after the cabinet door is opened, the support rod is controlled to move to a position cooperating with the cabinet door to control the cabinet door from closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic structural diagram of an embodiment of a switch cabinet device for door lock controlled grounding protection.

[0031] Figure 2 A schematic diagram of a half-section structure of a switch cabinet device for door lock controlled grounding protection in one embodiment.

[0032] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0033] Figure 4 A schematic diagram of the connection relationship between a guide component, a partial lifting locking mechanism, a limit component, and a locking component in an embodiment of a switch cabinet device for door lock controlled grounding protection.

[0034] Figure 5 A schematic diagram of the connection relationship among a guide assembly, a partial lifting locking mechanism, a limit assembly, a locking assembly, and a door lock assembly in one embodiment of a switch cabinet device for door lock controlled grounding protection.

[0035] Figure 6 A schematic diagram of a partially half-section structure of a switch cabinet device for door lock controlled grounding protection in an embodiment.

[0036] Figure 7 A schematic diagram of the exploded structure of a partial lifting locking mechanism, a grounding rod, and a rotating sleeve in an embodiment of a switch cabinet device for door lock controlled grounding protection.

[0037] Figure 8 A schematic diagram of the exploded structure of a door lock assembly and a locking assembly in one embodiment of a switch cabinet device for door lock controlled grounding protection.

[0038] Fig. 9 A schematic diagram of the exploded structure of a limit assembly in an embodiment of a switch cabinet device for door lock controlled grounding protection.

[0039] In the figure: 1. cabinet body; 2. cabinet door; 3. handle; 4. rotating plate; 5. limiting wheel; 6. fixed plate; 7. guide rod; 8. guide sleeve No. 1; 9. connecting plate; 10. grounding rod; 11. limiting hole; 12. limiting ring; 13. limiting rod; 14. rotating sleeve; 15. through groove; 16. movable ring; 17. spring No. 1; 18. movable plate; 19. protrusion No. 1; 20. spiral groove; 21. moving contact; 22. static contact; 23. straight groove; 24. annular groove; 25. protrusion No. 2; 26. guide sleeve No. 2; 27. gear; 28. sliding block; 29. ​​rack plate; 30. support rod; 31. support sleeve; 32. movable rod; 33. inclined plate; 34. spring No. 2; 35. slide groove. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0042] See also Figure 1 to Figure 9 In an embodiment of the present invention, a switch cabinet device for door lock controlled grounding protection includes:

[0043] A cabinet body 1, and a cabinet door 2 rotatably mounted on the cabinet body 1, a handle 3 rotatably mounted on the cabinet door 2, and a fixing plate 6 installed in the cabinet body 1;

[0044] Also includes:

[0045] A rotating sleeve 14 is rotatably mounted on the fixed plate 6, a grounding rod 10 is slidably mounted in the rotating sleeve 14, a moving contact 21 is disposed at the end of the grounding rod 10, and a static contact 22 cooperating with the moving contact 21 is disposed in the cabinet 1;

[0046] In detail, in the initial state, the static contact 22 and the moving contact 21 are in a separated state. When the switch cabinet is inspected and repaired, it is necessary to control the switch cabinet for grounding protection, so the height of the grounding rod 10 needs to be adjusted.

[0047] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 The door lock assembly is arranged in the cabinet 1 and connected to the handle 3. The door lock assembly includes a rotating plate 4 rotatably installed in the cabinet 1 and coaxially connected to the handle 3. A torsion spring is sleeved on the rotating shaft of the rotating plate 4, and a limiting wheel 5 is provided on the rotating plate 4.

[0048] Among them, in the initial state, the cabinet door 2 is in a closed state, and the rotating plate 4 is in contact with the inner wall of the cabinet body 1. Under the action of the torsion spring, the rotating plate 4 is in a horizontal state. When the switch cabinet needs to be repaired, the cabinet door 2 needs to be opened. Therefore, the handle 3 can be held and the handle 3 can be controlled to rotate, thereby driving the rotating plate 4 to rotate synchronously. The rotating plate 4 will also drive the lifting and locking mechanism to move, and control the movement of the grounding rod 10 to control the moving contact 21 to move toward the static contact 22. When the rotating plate 4 moves to separate from the cabinet body 1, the handle 3 can be held and the cabinet door 1 can be controlled to open.

[0049] See also Figure 2 , Figure 4-Figure 7 The rotating sleeve 14 is provided with a lifting and locking mechanism connected to the door lock assembly and the grounding rod 10. The lifting and locking mechanism can adjust the matching state of the moving contact 21 and the static contact 22 through the grounding rod 10 when the door lock assembly moves. The lifting and locking mechanism includes a through slot 15 provided on the rotating sleeve 14, and the grounding rod 10 is provided with a limit ring 12 slidably connected to the rotating sleeve 14. The limit ring 12 is provided with a limit rod 13 that passes through the through slot 15, and the limit rod 13 is in contact with the rotating plate 4. The rotating sleeve 14 is provided with a support assembly connected to the limit ring 12, wherein the support assembly includes a through slot 15 installed on the grounding rod 10 and connected to the through slot 15. The movable ring 16 is slidably connected to the groove 15, and a movable plate 18 is movably installed on the rotating sleeve 14. A No. 1 spring 17 is sleeved on the rotating sleeve 14, and the two ends of the No. 1 spring 17 are respectively abutted against the movable ring 16 and the movable plate 18; it also includes a spiral groove 20 opened on the rotating sleeve 14, and a No. 1 protrusion 19 slidably connected to the spiral groove 20 is arranged in the movable plate 18, and a sliding structure connected to the grounding rod 10 is arranged in the rotating sleeve 14. The sliding structure mentioned above includes a straight groove 23 and an annular groove 24 opened on the grounding rod 10, and a No. 2 protrusion 25 is arranged on the inner wall of the rotating sleeve 14, and the No. 2 protrusion 25 can slide along the straight groove 23 and the annular groove 24.

[0050] It should be noted that, in the initial state, the No. 1 protrusion 19 is located at the end of the stroke of the spiral groove 20 away from the fixed plate 6, and the No. 1 spring 17 is in a compressed state, so that the movable ring 16 is located at the end of the stroke away from the movable plate 18. Under the action of the movable ring 16, the grounding rod 10 is controlled to be located at the end of the stroke away from the static contact 22 through the limit ring 12. The No. 1 protrusion 19 is located at the end of the stroke on the side of the straight groove 23 away from the annular groove 24. The through groove 15 is L-shaped, and the limit rod 13 is located at the end of the stroke away from the movable plate 18 and abuts against the rotating plate 4. When the switch cabinet needs to be repaired, it is necessary to control the moving contact 21 to abut against the static contact 22. Therefore, the handle 3 can be held and the rotating plate 4 can be driven to rotate, thereby driving the limit rod 13 to move. The limit rod 13 will move along the trajectory of the through groove 15, and drive the grounding rod 10 to move along the length direction of the rotating sleeve 14 through the limit ring 12, thereby driving the moving contact 21 toward The static contact 22 moves in the direction of the second protrusion 25, so that the second protrusion 25 moves along the length direction of the straight groove 23. Under the action of the second protrusion 25 and the straight groove 23, it is ensured that the rotating sleeve 14 will not rotate, thereby limiting the position of the spiral groove 20. Under the action of the first protrusion 19, the movable plate 18 is controlled to be in a fixed state, and the limit ring 12 will also drive the movable ring 16 to move and compress the first spring 17. When the second protrusion 25 moves to the connection position between the straight groove 23 and the annular groove 24, the compression of the first spring 17 reaches the maximum. At this time, the rotating sleeve 14 is no longer locked, the first spring 17 is elastically released, and drives the movable plate 18 to move toward the fixed plate 6. The movable plate 18 also controls the first protrusion 19 to slide along the trajectory of the spiral groove 20, so that the rotating sleeve 14 rotates, thereby controlling the second protrusion 25 to enter the annular groove 24. Under the action of the second protrusion 25 and the annular groove 24, the position of the grounding rod 10 is locked.

[0051] Preferably, after the grounding rod 10 is locked, the position of the limit rod 13 no longer changes, and the rotating plate 4 continues to move. Since the contact position between the rotating plate 4 and the limit rod 13 is made of rubber material, when the limit rod 13 is fixed, the rubber material will be deformed and separated from the limit rod 13, and the rotating plate 4 continues to rotate. After the rotating plate 4 is separated from the cabinet body 1, the cabinet door 2 can be controlled to open.

[0052] See also Figure 2 , Figure 4-Figure 6 , a guide assembly is arranged on the fixed plate 6 and connected to the lifting and locking mechanism, and is used to guide the grounding rod 10 to move along the length direction of the rotating sleeve 14. The guide assembly includes a guide rod 7 installed on the fixed plate 6, and a No. 1 guide sleeve 8 and a No. 2 guide sleeve 26 are slidably installed on the guide rod 7. The No. 2 guide sleeve 26 is fixedly connected to the movable plate 18, and the No. 1 guide sleeve 8 is provided with a connecting plate 9 fixedly connected to the grounding rod 10.

[0053] Furthermore, in order to ensure that the grounding rod 10 does not shift during movement, when the grounding rod 10 moves, the No. 1 guide sleeve 8 is driven to move along the length direction of the guide rod 7 through the connecting plate 9, and when the movable plate 18 moves, the No. 2 guide sleeve 26 is driven to move along the length direction of the guide rod 7. The No. 1 guide sleeve 8 and the No. 2 guide sleeve 26 have a guiding function with the guide rod 7 to ensure that the grounding rod 10 and the movable plate 18 move along the length direction of the guide rod 7.

[0054] See also Figure 2 , Figure 4-Figure 6 , Fig. 9 , a limit assembly is arranged on the cabinet body 1 and connected to the rotating sleeve 14, a support rod 30 is connected to the limit assembly, and the limit assembly can control the support rod 30 to move to a position cooperating with the cabinet door 2 when the rotating sleeve 14 rotates. The limit assembly includes a slide groove 35 opened on the cabinet body 1, a sliding block 28 is slidably installed in the slide groove 35, and the sliding block 28 is fixedly connected to the support rod 30; it also includes a rack plate 29 installed on the sliding block 28, and the rotating sleeve 14 is provided with a gear 27 meshing with the rack plate 29.

[0055] Furthermore, in order to ensure that the cabinet door 2 will not be closed before the maintenance is completed due to misoperation, the cabinet door 2 needs to be limited. In the initial state, under the action of the gear 27, the rack plate 29 is located at the end of the stroke away from the cabinet door 2, so that the support rod 30 is located in the slide groove 35. When the moving contact 21 abuts against the static contact 22, the second protrusion 25 moves to the connection position of the straight groove 23 and the annular groove 24, the first spring 17 is elastically released, and drives the movable plate 18 to move toward the fixed plate 6. Under the action of the rotating groove 20, the rotating sleeve 14 rotates, and the rotating sleeve 14 also drives the gear 27 to rotate, thereby driving the sliding block 28 provided with a rack plate 29 to move along the length direction of the sliding groove 35. The sliding block 28 also drives the support rod 30 to move. When the support rod 30 passes through the sliding groove 35 and abuts against the cabinet door 2, the rotation of the rotating sleeve 14 is limited. At this time, the cabinet door 2 can be opened, the rotating sleeve 14 continues to rotate, and the support rod 30 is controlled to extend out of the sliding groove 35. Under the action of the support rod 30, the closing of the cabinet door 2 is limited.

[0056] See also Figure 2-Figure 6 , Figure 8, a locking assembly is arranged in the cabinet 1 and is connected to the grounding rod 10 and the door lock assembly, and is used to limit the position of the grounding rod 10. The locking assembly includes a supporting sleeve 31 installed in the cabinet 1, and a movable rod 32 is slidably installed in the supporting sleeve 31. An inclined plate 33 is provided on the movable rod 32, and the inclined plate 33 is in contact with the limiting wheel 5. A No. 2 spring 34 is sleeved on the movable rod 32 and abuts against the inclined plate 33; it also includes a limiting hole 11 opened on the grounding rod 10, and the limiting hole 11 cooperates with the movable rod 32.

[0057] To elaborate, in the initial state, the cabinet door 2 is in a closed state, and the limiting wheel 5 abuts against the inclined plate 33, so that the movable rod 32 is located at the end of the stroke away from the grounding rod 10, and the No. 2 spring 34 is in a compressed state. When the switch cabinet needs to be inspected and repaired, the rotating plate 4 rotates and controls the grounding rod 10 to move toward the fixed plate 6. The rotating plate 4 also controls the limiting wheel 5 to separate from the inclined plate 33. The No. 2 spring 34 is elastically released, so that the movable rod 32 moves toward the grounding rod 10 and abuts against the outer wall of the grounding rod 10. When the moving contact 21 abuts against the static contact 22, the limiting hole 11 opened on the grounding rod 10 just moves to the abutting position with the movable rod 32. The No. 2 spring 34 is elastically released and controls the movable rod 32 to enter the limiting hole 11, thereby locking the grounding rod 10 again.

[0058] Preferably, after the inspection is completed, the sliding block 28 can be controlled to reset, so that the rotating sleeve 14 rotates to the initial angle, so that the No. 1 spring 17 is compressed. Since the movable rod 32 abuts against the limiting hole 11, the position of the grounding rod 10 will not change. At this time, the handle 3 can be rotated, and the rotating plate 4 can be controlled to enter the cabinet 1 again, and the force applied to the handle 3 is removed. Under the action of the torsion spring, the rotating plate 4 is reset, and under the action of the limiting wheel 5, it will abut against the inclined plate 33, so that the movable rod 32 is controlled by the inclined plate 33 to move in the direction away from the grounding rod 10, and the No. 2 spring 34 is compressed. When the movable rod 32 is separated from the limiting hole 11, the No. 1 spring 17 is elastically released, so that the grounding rod 10 is reset, and the moving contact 21 is separated from the static contact 22, thereby disconnecting the grounding protection.

[0059] A maintenance method for a switch cabinet device with door lock controlled grounding protection comprises the following steps:

[0060] Step 1: When maintenance is required, the handle 3 can be manually controlled to rotate, and the door lock assembly can be driven to move, thereby driving the lifting and locking mechanism to move;

[0061] Step 2: Under the action of the lifting and locking mechanism, the grounding rod 10 is controlled to move, and under the action of the guide assembly, the grounding rod 10 is moved along the length direction of the rotating sleeve 14, so that the moving contact 21 moves toward the static contact 22;

[0062] Step 3: When the moving contact 21 moves to the abutting position with the stationary contact 22, the grounding rod 10 is fixed under the action of the clamping assembly to ensure that the moving contact 21 will not separate from the stationary contact 22;

[0063] Step 4: At this time, the cabinet door can be opened, and under the action of the lifting and locking mechanism, the limit assembly is driven to move to control the extension of the support rod 30, thereby limiting the closing of the cabinet door 2. At this time, the switch cabinet can be inspected and repaired.

[0064] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0065] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A switch cabinet device for door lock controlled grounding protection, comprising: A cabinet body (1), and a cabinet door (2) rotatably mounted on the cabinet body (1), a handle (3) rotatably mounted on the cabinet door (2), and a fixing plate (6) mounted inside the cabinet body (1); It is characterized by further comprising: A rotating sleeve (14) is rotatably mounted on the fixed plate (6), a grounding rod (10) is slidably mounted in the rotating sleeve (14), a moving contact (21) is provided at the end of the grounding rod (10), and a stationary contact (22) cooperating with the moving contact (21) is provided in the cabinet (1); A door lock assembly is arranged in the cabinet (1) and connected to the handle (3); the rotating sleeve (14) is provided with a lifting locking mechanism connected to the door lock assembly and the grounding rod (10); the lifting locking mechanism can adjust the matching state of the moving contact (21) and the stationary contact (22) through the grounding rod (10) when the door lock assembly moves; a guide assembly, arranged on the fixing plate (6) and connected to the lifting and locking mechanism, and used for guiding the grounding rod (10) to move along the length direction of the rotating sleeve (14); a limit assembly, arranged on the cabinet body (1) and connected to the rotating sleeve (14), the limit assembly being connected to a support rod (30), and the limit assembly being capable of controlling the support rod (30) to move to a position cooperating with the cabinet door (2) when the rotating sleeve (14) rotates; A locking assembly is arranged in the cabinet (1) and connected to the grounding rod (10) and the door lock assembly, and is used to limit the position of the grounding rod (10).

2. A switch cabinet device for door lock controlled grounding protection according to claim 1, characterized in that: The door lock assembly comprises a rotating plate (4) rotatably mounted in the cabinet (1) and coaxially connected to the handle (3), a torsion spring being sleeved on the rotating shaft of the rotating plate (4), and a limit wheel (5) being provided on the rotating plate (4).

3. A switch cabinet device for door lock controlled grounding protection according to claim 2, characterized in that: The lifting and locking mechanism comprises a through slot (15) provided on the rotating sleeve (14); a limiting ring (12) slidably connected to the rotating sleeve (14) is provided on the grounding rod (10); a limiting rod (13) penetrating the through slot (15) is provided on the limiting ring (12); the limiting rod (13) is in abutment with the rotating plate (4); and a supporting assembly connected to the limiting ring (12) is provided on the rotating sleeve (14).

4. A switch cabinet device for door lock controlled grounding protection according to claim 3, characterized in that: The support assembly comprises a movable ring (16) mounted on the grounding rod (10) and slidably connected to the through slot (15); a movable plate (18) is movably mounted on the rotating sleeve (14); a first spring (17) is sleeved on the rotating sleeve (14); two ends of the first spring (17) are respectively in contact with the movable ring (16) and the movable plate (18); It also includes a spiral groove (20) formed on the rotating sleeve (14), a first protrusion (19) slidably connected to the spiral groove (20) is provided in the movable plate (18), and a sliding structure connected to the grounding rod (10) is provided in the rotating sleeve (14).

5. A switch cabinet device for door lock controlled grounding protection according to claim 4, characterized in that: The sliding structure comprises a straight groove (23) and an annular groove (24) formed on the grounding rod (10); a second protrusion (25) is provided on the inner wall of the rotating sleeve (14); and the second protrusion (25) is capable of sliding along the straight groove (23) and the annular groove (24).

6. A switch cabinet device for door lock controlled grounding protection according to claim 4, characterized in that: The guide assembly comprises a guide rod (7) mounted on the fixed plate (6), a first guide sleeve (8) and a second guide sleeve (26) being slidably mounted on the guide rod (7), the second guide sleeve (26) being fixedly connected to the movable plate (18), and a connecting plate (9) being fixedly connected to the grounding rod (10) being provided on the first guide sleeve (8).

7. A switch cabinet device for door lock controlled grounding protection according to claim 1, characterized in that: The limiting assembly comprises a slide groove (35) provided on the cabinet (1), a sliding block (28) being slidably mounted in the slide groove (35), and the sliding block (28) being fixedly connected to the support rod (30); It also includes a rack plate (29) mounted on the sliding block (28), and the rotating sleeve (14) is provided with a gear (27) meshing with the rack plate (29).

8. A switch cabinet device for door lock controlled grounding protection according to claim 2, characterized in that: The clamping assembly comprises a supporting sleeve (31) installed in the cabinet (1), a movable rod (32) is slidably installed in the supporting sleeve (31), an inclined plate (33) is provided on the movable rod (32), the inclined plate (33) is in abutment with the limiting wheel (5), and a second spring (34) is sleeved on the movable rod (32) and abuts against the inclined plate (33); It also includes a limiting hole (11) formed on the grounding rod (10), wherein the limiting hole (11) cooperates with the movable rod (32).

9. A maintenance method for a switch cabinet device with door lock controlled grounding protection, using the switch cabinet device with door lock controlled grounding protection as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: When maintenance is required, the handle (3) can be manually controlled to rotate, thereby driving the door lock assembly to move, thereby driving the lifting and locking mechanism to move; Step 2: Under the action of the lifting and locking mechanism, the grounding rod (10) is controlled to move, and under the action of the guide assembly, the grounding rod (10) is moved along the length direction of the rotating sleeve (14) so ​​that the moving contact (21) moves towards the static contact (22); Step three: when the moving contact (21) moves to abutting position with the stationary contact (22), the grounding rod (10) is fixed under the action of the locking assembly to ensure that the moving contact (21) will not separate from the stationary contact (22); Step 4: At this point, the cabinet door can be opened, and under the action of the lifting and locking mechanism, the limit assembly is driven to move to control the support rod (30) to extend, thereby limiting the closing of the cabinet door (2). At this point, the switch cabinet can be inspected and repaired.

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