Mechanical interlocking device for switch cabinet and switch cabinet

Abstract

The application relates to the field of interlocking switch devices, and particularly relates to a mechanical interlocking device for a switch cabinet and the switch cabinet, which comprises a mounting shaft, a rotating drum sleeved on the mounting shaft, a control handle, a mounting frame, a control shaft, a moving frame, a bevel gear A, a bevel gear B and two bevel gears C. In the application, the position of the combination A on the mounting shaft is freely adjustable, and the gear A and the toothed belt are used for transmission, so that the mechanical interlocking device can be flexibly adjusted, and the switch device can still be interlocked by unified transmission control, thereby improving the universality of the application.

Description

Technical Field

[0001] This invention relates to the field of interlocking switchgear, specifically to a mechanical interlocking device for switchgear and a switchgear. Background Technology

[0002] Mechanical interlocking devices are a type of safety control technology. When applied to the field of switchgear, they mainly use precision mechanical components to achieve interlocking with the switchgear, thereby effectively preventing unsafe operations caused by accidental actions. Currently, mechanical interlocking devices are commonly combined with switch cabinets, providing more reliable safety guarantees for switchgear.

[0003] However, in the practical application of conventional mechanical interlocking devices, we can easily find some limitations. These mechanical mechanisms mainly use key components such as lock bodies, lock cylinders, and connecting rods for transmission. The design and use of these components are often highly specialized and require precise layout based on the specific location and status of the switching equipment. Specifically, since the structure, size, and layout of different switches in the switch cabinet vary, the aforementioned transmission components often need to be customized and adjusted, which limits the wide application of mechanical interlocking devices in different scenarios. Therefore, the existing technology is too simplistic and has narrow versatility. Summary of the Invention

[0004] In view of the technical problems mentioned in the background art, the present invention provides a mechanical interlocking device and switch cabinet that can be flexibly deployed and used.

[0005] A mechanical interlocking device includes: a mounting shaft;

[0006] A rotating drum is mounted on a mounting shaft, and the rotating drum and the mounting shaft can rotate and slide relative to each other;

[0007] A control hand is fixedly connected to the rotating drum. The rotation of the rotating drum will open and close the control switch.

[0008] The mounting frame is slidably connected to the mounting shaft.

[0009] The control axis is parallel to the mounting axis, passes through the mounting frame, and can rotate and slide relative to the mounting frame.

[0010] A movable frame is provided inside the mounting frame, and the control axis passes through the movable frame. The movable frame and the control axis can rotate and slide relative to each other.

[0011] Bevel gear A is fixedly connected to the rotating drum;

[0012] Bevel gear B is rotatably connected to the movable frame, and bevel gear B can mesh with bevel gear A;

[0013] There are two bevel gears C rotatably connected to the moving frame. The two bevel gears C mesh with each other. One bevel gear C is engaged with the control shaft, and the other bevel gear C is coaxially fixed with bevel gear B.

[0014] As a further limitation of this technical solution, the movable frame is slidably connected within the mounting frame, and two bevel gears A are provided, which are respectively fixedly connected to both ends of the rotating drum, with the two bevel gears A being set in opposite directions;

[0015] It also includes: an extension arm, which is rotatably connected to the movable frame;

[0016] The arm is fixedly connected to a retaining shaft.

[0017] The top of the mounting frame is fixedly connected to a locking block, and the locking shaft can be locked in place by snapping with the locking block.

[0018] As a further limitation of this technical solution, the mounting shaft and the control shaft form combination A, and the rotating drum, the control hand, the mounting frame, the moving frame, the bevel gear set, the bevel gear C, the extension arm, the locking shaft, and the locking block form combination B. Combination A is provided with at least two sets of combination B.

[0019] As a further limitation of this technical solution, the present invention also provides a switch cabinet, including: the aforementioned mechanical interlocking device;

[0020] Cabinet body, the mechanical interlocking device is installed inside the cabinet body, and at least two sets of combination A are installed inside the cabinet body; cabinet door, the front of the cabinet body is rotatably connected to the cabinet door;

[0021] Mounting rack: A mounting rack for installing switches is fixedly connected inside the cabinet.

[0022] As a further limitation of this technical solution, mounting blocks are provided on both sides of assembly A, the mounting shaft is fixedly connected to the mounting blocks, the control shaft is rotatably connected to the mounting blocks, and the positions of the mounting blocks and the mounting bracket on the cabinet can be adjusted.

[0023] As a further limitation of this technical solution, it also includes: a rotating wheel, which is rotatably connected to the side wall of the cabinet;

[0024] A toothed belt is wound between the rotating wheels;

[0025] Gear A is fixedly connected to the control shaft, and gear A meshes with a toothed belt.

[0026] The frame is fixedly connected to the cabinet door;

[0027] Gear B is rotatably connected to the frame shell, and gear B passes through the frame shell and the cabinet door.

[0028] As a further limitation of this technical solution, it also includes: a mounting plate, which is fixedly connected to the cabinet;

[0029] The mounting plate has a lock hole;

[0030] Lock cylinder, a lock cylinder is rotatably connected to the frame housing;

[0031] The lock cylinder is rotatably connected inside the lock cylinder;

[0032] A rotating shaft is rotatably connected to the frame housing and is fixedly connected to the lock cylinder. A square head is provided on the rotating shaft. A threaded post is slidably connected to the square head of the rotating shaft and can mate with the thread of the lock hole.

[0033] A spring is fixedly connected between the threaded column and the rotating shaft.

[0034] Mounting ring: A mounting ring is fixedly connected to the outside of the lock cylinder;

[0035] The handle is fixedly connected to the mounting ring.

[0036] As a further limitation of this technical solution, it also includes: a connecting rod, on which the mounting ring is slidably connected;

[0037] A bevel gear D is fixedly connected to both the connecting rod and the gear B, and the two bevel gears D can mesh with each other.

[0038] The control cylinder is rotatably connected to the shaft. Rotation of the control cylinder moves the transmission connecting rod. The control cylinder is fixedly connected to the lock cylinder.

[0039] The beneficial effects of this invention are as follows: By setting the position of combination A on the mounting shaft to be freely adjustable, the control hand can be uniformly controlled by the mounting shaft in any position. Furthermore, by employing a gear A and a toothed belt transmission method, the control shaft can be uniformly controlled in any position. This allows the mechanical interlocking device in this invention to be adjusted with great flexibility while still maintaining unified transmission control for interlocking the switches. Therefore, this invention can arbitrarily adjust the mechanical interlocking device according to actual conditions, making it suitable for switches in different positions without requiring different mechanical interlocking devices for different switches, thus improving the versatility of this invention. Moreover, by combining the mechanical interlocking device with the use of a switch cabinet, this invention achieves opening and closing control of the switches while opening and closing the cabinet door. This not only facilitates the use of this invention but also further enhances the stability and security of locking the switches by utilizing the stability and robustness of the lock between the cabinet door and the cabinet body. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0041] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0042] Figure 3 This is a schematic diagram of the connection structure of the mechanical interlocking device in this invention.

[0043] Figure 4 This is a schematic diagram of the connection structure of the mechanical interlocking device in this invention from another perspective.

[0044] Figure 5 This is a schematic diagram of the connection structure of the control shaft, rotating wheel, toothed belt and gear A in this invention.

[0045] Figure 6 This is a schematic diagram showing the position and engagement structure of the toothed belt and gear B when the cabinet door is closed in this invention.

[0046] Figure 7 This is a schematic diagram showing the position and mating structure of the lock hole and threaded post when the cabinet door is closed in this invention.

[0047] Figure 8 This is an exploded view of the connection structure of the rotating shaft, threaded column, and gear B on the cabinet door in this invention.

[0048] Figure 9 This is an exploded view of the connection structure of the handle, shaft, threaded column, and gear B in this invention.

[0049] The markings in the attached diagram are as follows: 1-Mounting shaft, 101-Hole, 2-Rotating cylinder, 3-Control hand, 4-Mounting frame, 5-Control shaft, 6-Moving frame, 7-Bevel gear set, 701-Bevel gear A, 702-Bevel gear B, 8-Bevel gear C, 9-Extending arm, 10-Clamping shaft, 11-Clamping block, 12-Cabinet body, 13-Cabinet door, 14-Mounting bracket, 15-Rotating wheel, 16-Gear belt, 17-Gear A, 18-Mounting plate, 1801-Through groove, 19-Lock hole, 20-Frame shell, 21-Lock cylinder, 22-Lock core, 23-Rotating shaft, 2301-Square head, 24-Threaded column, 25-Spring, 26-Mounting ring, 27-Handle, 28-Gear B, 29-Bevel gear D, 30-Connecting rod, 3001-Convex ring, 31-Control cylinder, 3101-Helical convex pattern. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Example: See Figures 2-4 A mechanical interlocking device includes: a mounting shaft 1, which is horizontally arranged in a left-right direction; a rotating cylinder 2, which is fitted onto the mounting shaft 1 and can rotate and slide relative to the mounting shaft 1; a control hand 3, which is fixedly mounted on the rotating cylinder 2 and is used to connect to the lever of a switch. Rotation of the rotating cylinder 2 will cause the control hand 3 to actuate the lever, thereby controlling the opening and closing of the switch; a mounting frame 4, which is slidably mounted on the mounting shaft 1 and is rotatably connected to the rotating cylinder 2; a control shaft 5, which is parallel to the mounting shaft 1 and passes through the mounting frame 4, and can rotate and slide relative to the mounting frame 4; a movable frame 6, which is slidably mounted inside the mounting frame 4, and the control shaft 5 passes through the movable frame 6, and can rotate and slide relative to the control shaft 5; and a bevel gear set 7. A bevel gear set 7 for transmission is provided between the rotating drum 2 and the drum 6. The bevel gear set 7 includes a bevel gear A701 and a bevel gear B702. A bevel gear A701 is fixedly installed at both ends of the rotating drum 2. The two bevel gears A701 are set in opposite directions. A bevel gear B702 is rotatably installed on the moving frame 6. When the moving frame 6 moves, it will drive the bevel gear B702 to move to mesh with one of its bevel gears A701. Two bevel gears C8 are rotatably installed on the moving frame 6. One bevel gear C8 is slidably engaged with the control shaft 5. This bevel gear C8 can slide relative to the control shaft 5, but can still be driven to rotate by the control shaft 5. The other bevel gear C8 is fixed coaxially with the bevel gear B702. The two bevel gears C8 mesh with each other, so that the control shaft 5 can drive and control the rotation of the bevel gear B702.

[0052] When bevel gear B702 meshes with bevel gear A701 on the left, the control shaft 5 rotates clockwise, causing the control hand 3 to swing upwards; when the control shaft 5 rotates counterclockwise, it causes the control hand 3 to swing downwards. When bevel gear B702 meshes with bevel gear A701 on the right, the control shaft 5 rotates clockwise, causing the control hand 3 to swing downwards; when the control shaft 5 rotates counterclockwise, it causes the control hand 3 to swing upwards.

[0053] See Figures 3-4 It also includes: an extension arm 9, which is rotatably mounted on the movable frame 6; a locking shaft 10, which is fixedly mounted on the extension arm 9; and a locking block 11, which is fixedly mounted on the top of the mounting frame 4, and the locking shaft 10 can be locked in a snap-fit ​​manner with the locking block 11.

[0054] After controlling the movement of the moving frame 6 and determining which bevel gear B702 meshes with which bevel gear A701, the position of the moving frame 6 is fixed using the retaining shaft 10 and the retaining block 11 to ensure the stability of the transmission function between the bevel gear B702 and the bevel gear A701.

[0055] See Figures 1-2A switch cabinet using the aforementioned mechanical interlocking device includes: a cabinet body 12, the mechanical interlocking device being installed inside the cabinet body 12, with mounting shaft 1 and control shaft 5 forming a combination A, mounting blocks being provided on both sides of combination A, mounting shaft 1 being fixedly mounted on the mounting blocks, and control shaft 5 being rotatably mounted on the mounting blocks, combination A being slidably mounted inside the cabinet body 12 using the mounting blocks and being fixed with fixing bolts, and two sets of combination A being provided inside the cabinet body 12, with the rotary drum 2, control hand 3, mounting frame 4, moving frame 6, bevel gear set 7, bevel gear C8, extension arm 9, locking shaft 10 and locking block 11, installed in the above manner, forming combination B, each set... Each assembly A is equipped with three sets of combinations B; cabinet door 13, which is rotatably installed on the front of the cabinet body 12; it also includes: mounting bracket 14, which is detachably and fixedly installed inside the cabinet body 12, and the switch is fixedly installed on the mounting bracket 14, which is correspondingly set at the rear of each combination A; rotating wheel 15, which is rotatably installed on the right inner side wall of the cabinet body 12, and there are two rotating wheels 15, which are respectively located on the upper and lower sides of the inner side wall; toothed belt 16, which is wound between the two rotating wheels 15; gear A17, which is fixedly installed on the right end of each control shaft 5, and the gear A17 meshes with the toothed belt 16. When the toothed belt 16 rotates, it will drive each control shaft 5 to rotate synchronously through the gear A17.

[0056] See Figures 5-9 It also includes: a mounting plate 18, which is fixedly mounted on the front right side of the cabinet 12; a through groove 1801, which is provided on the mounting plate 18 and is positioned opposite to the toothed belt 16; a lock hole 19, which is provided on the front side of the mounting plate 18; a frame shell 20, which is fixedly mounted on the front right side of the cabinet door 13; a lock cylinder 21, which is rotatably mounted on the frame shell 20; a lock cylinder 22, which is rotatably mounted inside the lock cylinder 21 and is used to lock the lock cylinder 21 onto the frame shell 20; and a rotating shaft 23, which connects the frame shell 20 and the cabinet door 13. A rotating shaft 23 is rotatably mounted and fixedly mounted to a lock cylinder 21. The rear end of the rotating shaft 23 is configured as a square head 2301. A threaded post 24 is slidably mounted on the square head 2301 of the rotating shaft 23. The threaded post 24 can be threadedly engaged with the lock hole 19 to lock the cabinet door 13 and the cabinet body 12. A hole 101 is provided at the rear of the cabinet door 13, and the threaded post 24 can be retracted into the hole 101. A spring 25 is fixedly mounted between the threaded post 24 and the rotating shaft 23. The spring 25 is used to reset the relative position between the threaded post 24 and the rotating shaft 23.

[0057] See Figures 5-9It also includes: a mounting ring 26, which is fixedly mounted on the outside of the lock cylinder 21; a handle 27, which is fixedly mounted on the mounting ring 26; a gear B28, which is rotatably mounted on the frame housing 20, and passes through the frame housing 20 and the cabinet door 13. When the cabinet door 13 closes the cabinet body 12, the gear B28 will mesh with the toothed belt 16; and connecting rods 30, four connecting rods 30 are slidably mounted on the rear side of the mounting ring 26, and the connecting rods 30 are fixed to the mounting ring 26 for resetting. The spring; bevel gear D29, bevel gear D29 is fixedly installed on the rear part of the connecting rod 30 and gear B28, and the two bevel gears D29 mesh with each other; convex ring 3001, convex ring 3001 is fixedly installed on the connecting rod 30; control cylinder 31, control cylinder 31 is rotatably installed on the outside of the rotating shaft 23, and control cylinder 31 is fixedly installed with lock cylinder 22; spiral convex pattern 3101, spiral convex pattern 3101 is fixedly installed on the control cylinder 31, and spiral convex pattern 3101 contacts convex ring 3001.

[0058] When the lock cylinder 22 rotates, it will synchronously control the control cylinder 31 to rotate. The rotation of the spiral convex pattern 3101 on the control cylinder 31 will control the connecting rod 30 to move backward by squeezing the convex ring 3001, so that the two bevel gears D29 mesh together. Therefore, by rotating the handle 27, the toothed belt 16 can be controlled to rotate in sequence through the transmission function of the bevel gear D29 and the gear B28.

[0059] Using the switch cabinet, firstly, the switches are arranged on the mounting bracket 14. Secondly, according to the number of switches, the number of combinations A and B in the mechanical interlocking device is set, and according to the position of the switches, the vertical position of combination A in the cabinet 12 and the horizontal position of combination B on combination A are adjusted. Then, the control handle 3 is connected to the levers of each switch. Finally, according to the actual switching behavior of the switches, the bevel gear B702 is adjusted to mesh with the left and right side bevel gears A701. Specifically, for example, in the switch... When the lever is moved upwards to turn on the switch and downwards to turn off the switch, rotate the extended arm 9 forward to disengage the locking shaft 10 from the locking block 11. At this point, the moving frame 6 can be pushed to the left, causing the bevel gear B702 to engage with the bevel gear A701 on the left. Then, rotate the extended arm 9 backwards to fix the locking shaft 10 and locking block 11, ensuring stable engagement of bevel gear B702 with bevel gear A701. This allows the control hand 3 to swing upwards when the control shaft 5 rotates forward and downwards when the control shaft 5 rotates in reverse. Completing all the above steps completes the installation of the mechanical interlocking device in the switch cabinet.

[0060] The operating principle of the switch cabinet is as follows (assuming that all switches in the switch cabinet are closed when facing upwards and open when facing downwards, therefore, bevel gear B will be adjusted and moved to mesh with bevel gear A on the right side):

[0061] When it is necessary to inspect the equipment and switches, or in other situations where it is necessary to disconnect the power supply to the equipment using the switches, use the key to turn the lock cylinder 22 to unlock the fixation between the lock cylinder 21 and the frame 20. During the rotation of the lock cylinder 22, the control cylinder 31 will push the connecting rod 30 and its upper bevel gear D29 to move backward, so that its upper bevel gear D29 meshes with the bevel gear D29 on gear B28; then turn the handle 27. During the rotation of the handle 27: ① the rotating shaft 23 rotates synchronously, and the control threaded column 24 rotates and disengages from the lock hole 19, unlocking the cabinet door 13 and the cabinet body 12. The lock is engaged, and the threaded post 24 is retracted into the hole 101. The spring 25 is compressed until the threaded post 24 is completely disengaged from the lock hole 19, allowing the cabinet door 13 to open. The spring 25 then returns to its original position. ② The handle 27 will rotate through the engagement of the bevel gear D29 with the gear B28. The gear B28, through its engagement with the toothed belt 16, will drive the gears A17 to rotate, thereby causing all the control shafts 5 to rotate synchronously in the forward direction. The control drum 2 will swing the control hand 3 upward, thus turning off all the switches. Therefore, the cabinet door 13 can be opened at this time to perform maintenance and other work on the switches and the equipment that has been de-energized by the switches.

[0062] After the inspection is completed and confirmed to be correct, the cabinet door 13 is closed. The threaded post 24 will be blocked by the lock hole 19 and will retract into the hole 101. The spring 25 is compressed. At the same time, the gear B28 is moved to pass through the through groove 1801 and mesh with the toothed belt 16. At this time, the handle 27 is reversed to control the threaded post 24 to turn into the lock hole 19, locking the cabinet door 13 and the cabinet body 12. The transmission control shaft 5 is reversed, causing the control hand 3 to swing downward, thereby opening the switch. Then, the key is used to reverse the lock cylinder 22, thereby locking the lock cylinder 21 so that it cannot rotate. The spring resets the connecting rod 30 between the connecting rod 30 and the mounting ring 26, causing the two bevel gears D29 to disengage. Therefore, all transmission components of the switch cabinet are locked and cannot operate. The switch's lever is connected to the control hand 3. Therefore, the switch cabinet can lock the switch and achieve safe control of the switch.

[0063] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A mechanical interlock device, characterized by, It includes: The installation shaft (1); The drum (2) is sleeved on the installation shaft (1), and the drum (2) and the installation shaft (1) can rotate and slide relative to each other; The control hand (3) is fixedly connected with the control hand (3) for connecting with the switch of the switch, so that the drum (2) rotates to control the switch; The installation frame (4) is slidably connected with the installation frame (4) on the installation shaft (1); The control shaft (5) is parallel to the installation shaft (1), the control shaft (5) passes through the installation frame (4), and the control shaft (5) and the installation frame (4) can rotate and slide relative to each other; The moving frame (6) is provided in the installation frame (4), the control shaft (5) passes through the moving frame (6), and the moving frame (6) and the control shaft (5) can rotate and slide relative to each other; The bevel gear A (701) is fixedly connected with the bevel gear A (701) on the drum (2); The bevel gear B (702) is rotatably connected with the bevel gear B (702) on the moving frame (6), and the bevel gear B (702) can be engaged with the bevel gear A (701); The bevel gear C (8) is rotatably connected with two bevel gears C (8) on the moving frame (6), the two bevel gears C (8) are engaged, one of the two bevel gears C (8) is matched with the control shaft (5), the control shaft (5) can drive the bevel gear C (8) to rotate, and the other two can slide relative to each other, and the other bevel gear C (8) is coaxially fixed with the bevel gear B (702); The moving frame (6) is slidably connected in the installation frame (4), the bevel gear A (701) is provided with two, which are fixedly connected at both ends of the drum (2), the directions of the two bevel gears A (701) are opposite, and the moving frame (6) moves, so that the bevel gear B (702) moves to be engaged with one of the bevel gears A (701); It also includes: the extension arm (9) is rotatably connected with the extension arm (9) on the moving frame (6); The clamping shaft (10) is fixedly connected with the clamping shaft (10) of the extension arm (9); The clamping block (11) is fixedly connected with the clamping block (11) on the top of the installation frame (4), and the clamping shaft (10) can be fixedly connected with the clamping block (11).

2. A mechanical interlock device according to claim 1, wherein, The installation shaft (1) and the control shaft (5) constitute combination A, the drum (2), the control hand (3), the installation frame (4), the moving frame (6), the bevel gear group (7) composed of bevel gear A (701) and bevel gear B (702), the bevel gear C (8), the extension arm (9), the clamping shaft (10) and the clamping block (11) constitute combination B, and at least two combinations B are provided on the combination A.

3. A switchgear using the mechanical interlocking device as claimed in claim 2, characterized in that, It also includes: The cabinet body (12) is provided in the cabinet body (12), and at least two combinations A are provided in the cabinet body (12); The cabinet door (13) is rotatably connected with the cabinet door (13) on the front of the cabinet body (12); The mounting bracket (14) is fixedly connected with the mounting bracket (14) for mounting the switch in the cabinet body (12).

4. A switchgear cabinet according to claim 3, characterised in that The combination A is provided with mounting blocks on both sides, the mounting shaft (1) is fixedly connected to the mounting blocks, and the control shaft (5) is rotatably connected to the mounting blocks; the positions of the mounting blocks and the mounting frame (14) on the cabinet body (12) can be adjusted.

5. Switchgear according to claim 4, characterized in that Also comprising: A rotating wheel (15) is rotatably connected to the side wall of the cabinet body (12); A toothed belt (16) is arranged between the rotating wheels (15); A gear A (17) is fixedly connected to the control shaft (5), and the gear A (17) is engaged with the toothed belt (16); the rotation of the toothed belt (16) can synchronously control the rotation of all the control shafts (5); A frame shell (20) is fixedly connected to the cabinet door (13); A gear B (28) is rotatably connected to the frame shell (20), and the gear B (28) penetrates out of the frame shell (20) and the cabinet door (13); when the cabinet door (13) closes the cabinet body (12), the gear B (28) will be engaged with the toothed belt (16).

6. Switchgear according to claim 5, characterized in that Also comprising: A mounting plate (18) is fixedly connected to the cabinet body (12); A lock hole (19) is formed in the mounting plate (18); A lock cylinder (21) is rotatably connected to the frame shell (20); A lock core (22) is rotatably connected in the lock cylinder (21), and the lock core (22) can lock the lock cylinder (21) on the frame shell (20); A rotating shaft (23) is rotatably connected to the frame shell (20), and the rotating shaft (23) is fixedly connected with the lock cylinder (21); a square head (2301) is arranged on the rotating shaft (23); A threaded column (24) is slidably connected to the square head (2301) of the rotating shaft (23), and the threaded column (24) can be threadedly matched with the lock hole (19) to lock the cabinet door (13) and the cabinet body (12); A spring (25) is fixedly connected between the threaded column (24) and the rotating shaft (23); A mounting ring (26) is fixedly connected outside the lock cylinder (21); A handle (27) is fixedly connected to the mounting ring (26) for rotating the lock cylinder (21).

7. Switchgear according to claim 6, characterized in that Also comprising: A connecting rod (30) is slidably connected to the mounting ring (26); A bevel gear D (29) is fixedly connected to the connecting rod (30) and the gear B (28); the two bevel gears D (29) can be engaged; A control cylinder (31) is rotatably connected outside the rotating shaft (23), and the control cylinder (31) is rotatably connected with the lock core (22).

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