Locking device of switch cabinet

Abstract

The utility model relates to a locking device of a switch cabinet, the locking device is used for detachably connecting the cabinet wall of the switch cabinet to a preset position, the preset position is provided with a lock hole, and the locking device comprises a lock box which is provided with a first vertical plate installed on the cabinet wall and a second vertical plate arranged on the side, away from the switch cabinet, of the first vertical plate in the horizontal direction; the lock arms are evenly distributed on the periphery of the second vertical plate at intervals, each lock arm is provided with a connecting end and a locking end which are connected with each other, and the connecting ends are rotatably connected with the lock box in the vertical plane; the driving assembly is used for being matched with the connecting ends so that the lock arms can have an unlocking state or a locking state, and the driving assembly is configured to drive the connecting ends to rotate in the first direction in the locking state so that the locking ends can stretch out of the lock box and abut against the inner wall of the lock hole; in the unlocking state, the connecting end is driven to rotate in the second direction deviating from the first direction, and the locking end is made to be disengaged from the inner wall of the lock hole until the locking end is retracted into the lock box.

Description

Technical Field

[0001] The present disclosure relates to a switch cabinet, and in particular, to a locking device for a switch cabinet. Background Art

[0002] A switch cabinet is usually composed of a cabinet body and a cabinet door formed by multiple side panels. In order to ensure the stability and safety of the switch cabinet during use, it is usually necessary to fix the switch cabinet in the installation position. The traditional installation method of the switch cabinet is to open mounting holes in both the side panels and the installation position, and then use bolts or nuts and other fixings to fit the mounting holes through threads to achieve the fixation between the switch cabinet and the installation base. Although this method can achieve the installation and fixation of the switch cabinet, after the switch cabinet is installed, if the switch cabinet needs to be replaced or maintained in subsequent work, the switch cabinet needs to re-determine the matching position between the cabinet body and the installation base when it is reinstalled. In addition, if the switch cabinet is repeatedly disassembled multiple times, it is easy to cause the screws to loosen with the mounting holes, which reduces the safety factor of the switch cabinet and increases the difficulty and cost of maintenance of the switch cabinet. Utility Model Content

[0003] The purpose of the present disclosure is to provide a locking device for a switch cabinet to at least partially solve the technical problems existing in the related art.

[0004] To achieve the above-mentioned object, the present disclosure provides a locking device for a switch cabinet, which is used to detachably connect a cabinet wall of the switch cabinet to a preset position, wherein a lock hole is provided at the preset position, and the locking device comprises:

[0005] A lock box having a first vertical plate mounted on the cabinet wall and a second vertical plate arranged horizontally on a side of the first vertical plate away from the switch cabinet;

[0006] a plurality of locking arms uniformly distributed at intervals on the periphery of the second vertical plate, each of the locking arms having a connecting end and a locking end connected to each other, the connecting end being rotatably connected to the lock box in a vertical plane; and

[0007] A drive assembly is used to cooperate with the connecting end to enable the multiple locking arms to have an unlocked state or a locked state, and the drive assembly is configured as follows:

[0008] In the locked state, driving the plurality of connecting ends to rotate in a first direction so that the locking ends extend out of the lock box and abut against the inner wall of the lock hole;

[0009] In the unlocked state, the connecting end is driven to rotate in a second direction away from the first direction, and the locking end is separated from the inner wall of the lock hole and retracted into the lock box.

[0010] Optionally, it also includes:

[0011] a plurality of pin holes, corresponding to the positions of the plurality of locking ends in the locked state, and spaced apart and evenly distributed on the periphery of the second vertical plate; and

[0012] A plurality of spring pins extend in a horizontal direction in an elastic expansion and contraction direction. One end of the spring pin is fixedly connected to the locking end, and the other end is elastically connected to the pin hole in a pluggable manner.

[0013] Optionally, the lock box is constructed as an internal hollow structure, the first vertical plate and the second vertical plate are arranged at intervals in the horizontal direction, and the drive assembly includes multiple first push rods that can move repeatedly along their own axes. The multiple first push rods extend in the horizontal direction and are accommodated in the lock box in a one-to-one correspondence with the multiple pin holes, so that they can be extended or retracted into the lock box through the pin holes.

[0014] Optionally, the drive assembly further includes:

[0015] A mounting plate vertically disposed between the first vertical plate and the second vertical plate horizontally, wherein one end of the plurality of first push rods is commonly fixed to the mounting plate and the other end extends toward the second vertical plate; and

[0016] The second push rod extends in the horizontal direction and can move back and forth along its own axis. One end of the second push rod is fixedly connected to the mounting plate, and the other end passes through the first vertical plate and extends to the outside of the lock box.

[0017] Optionally, the driving assembly includes:

[0018] A bearing extending in a horizontal direction, one end of which is used for fixed connection with the connecting end; and

[0019] a torsion spring, coaxially sleeved on the outside of the bearing and torsionally connected between the connecting end and the second vertical plate around the axis of the bearing;

[0020] Wherein, a bearing hole is provided on the second vertical plate of the lock box corresponding to the bearing, and the other end of the bearing is rotatably inserted into the bearing hole around its own axis.

[0021] Optionally, the drive assembly further includes:

[0022] A gear is accommodated in the lock box, and one end of the bearing, which is away from the connecting end, extends into the lock box through the bearing hole and is coaxially fixedly connected to the gear; and

[0023] The tooth block is slidably mounted on the inner wall of the second vertical plate and is used for engaging with or disengaging from the gear.

[0024] Optionally, a guide rail extending radially along the bearing is installed on the inner wall of the second vertical plate, and the guide rail is slidably connected to the gear block.

[0025] Optionally, the driving assembly further comprises a connecting rod, one end of which is hinged to the mounting plate, and the other end of which is fixedly connected to the gear block.

[0026] Optionally, the locking arm is constructed as an arc-shaped sheet structure, and the width of the locking arm gradually decreases from the locking end toward the connecting end.

[0027] Optionally, it also includes a lock body panel embedded in the cabinet wall, and the cross-section of the lock box in the horizontal plane is constructed as a U-shaped structure with an opening toward the lock body panel, and the end surface where the opening of the U-shaped structure is located is formed as the first vertical plate for connecting to the lock body panel.

[0028] With the above technical solution, the drive assembly drives the multiple locking arms to rotate in the first or second direction, allowing the locking ends to abut or disengage from the inner wall of the lock hole, thereby enabling the locking device to switch between a locked and unlocked state. This eliminates the need to worry about loosening between the screws and the mounting holes during switchgear installation, ensuring reliable installation and improving efficiency in assembly and disassembly.

[0029] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0031] Figure 1 is a cross-sectional view of a locking device provided by an exemplary embodiment of the present disclosure;

[0032] Figure 2 is a partial structural schematic diagram of a locking device provided in an exemplary embodiment of the present disclosure;

[0033] Figure 3 3 is a schematic diagram of a partial usage state of a locking device provided by an exemplary embodiment of the present disclosure.

[0034] Description of Reference Numerals

[0035] 1-lock box; 11-first vertical plate; 12-second vertical plate; 13-pin hole; 14-bearing hole; 2-locking arm; 21-connecting end; 22-locking end; 3-drive assembly; 31-bearing; 32-torsion spring; 33-gear; 34-tooth block; 35-guide rail; 36-connecting rod; 37-spring pin; 4-lock body panel; 41-through hole; 51-first push rod; 52-second push rod; 53-mounting plate; 54-pressure plate; 61-lock hole. DETAILED DESCRIPTION

[0036] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0037] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" refer to the outline of the corresponding parts themselves; directional words such as "horizontal" and "vertical" are defined based on the usage habits of the locking device provided by the present disclosure. Specifically, please refer to Figure 1 and Figure 3 The drawing direction, Figure 1 The direction indicated by the X arrow is the horizontal direction, and the direction perpendicular to the paper is the vertical direction. Figure 3 The direction indicated by the Z arrow is horizontal, and the direction perpendicular to the paper is horizontal. Terms such as "first" and "second" used in this disclosure are intended to distinguish one element from another and do not imply order or importance. In addition, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings represent the same or similar elements.

[0038] Reference Figure 1 and Figure 2 , the present disclosure provides a locking device for a switch cabinet, which can be used to detachably connect the cabinet wall of the switch cabinet to a preset position, which can be the installation position of the switch cabinet. A lock hole 61 can be opened on the side of the preset position facing the cabinet wall, and the locking device can include a lock box 1, a lock arm 2 and a drive assembly 3. The lock box 1 can include a first vertical plate 11 and a second vertical plate 12 spaced apart in the horizontal direction. The first vertical plate 11 can be fitted on the cabinet wall to install the lock box 1 on the cabinet wall of the switch cabinet. A plurality of locking arms 2 can be evenly spaced on the periphery of the second vertical plate 12, and each locking arm 2 can respectively have a connecting end 21 and a locking end 22 that are connected to each other, and the connecting end 21 can be rotatably connected to the lock box 1 in a vertical plane. The drive assembly 3 can be used to cooperate with the connecting end 21 so that the plurality of locking arms 2 have an unlocked state or a locked state. The first direction mentioned below can be Figure 2 The second direction can be counterclockwise to the direction of the drawing shown. Figure 2Clockwise direction as shown. In the vertical plane, the cross-section of the lock box 1 can be constructed as a circle, the first vertical plate 11 and the second vertical plate 12 can be constructed as a circle, and the multiple locking arms 2 can be distributed circumferentially along the second vertical plate 12 and arranged at equal intervals. The drive assembly 3 can be configured as follows: in the locked state, that is, when the cabinet wall has a fixed requirement, the drive assembly 3 can drive the multiple connecting ends 21 to rotate in the first direction, so that the locking end 22 extends out of the lock box 1 and abuts against the inner wall of the lock hole 61. In this way, the multiple locking arms 2 are jointly supported on the inner wall of the lock hole 61, so that the lock box 1 remains relatively fixed to the preset position, thereby achieving locking of the cabinet wall. At the same time, the contact between the locking arms 2 and the inner wall of the lock hole 61 makes it unnecessary for the lock box 1 to be centered relative to the lock hole 61 when inserted. In the unlocked state, that is, when the cabinet wall needs to be separated from the preset position, the drive assembly 3 can drive the connecting end 21 to rotate in a second direction away from the first direction, and make the locking end 22 separate from the inner wall of the lock hole 61 and retract into the lock box 1, thereby canceling the support of the locking end 22 on the inner wall of the lock hole 61, so that the lock box 1 can be separated from the lock hole 61 to release the lock on the relative position of the cabinet wall. According to the embodiment provided by the present disclosure, the preset position can be a wall for installing the switch cabinet and facing the cabinet wall, or the preset position can be a cabinet door of the switch cabinet, which can be used to cooperate with the cabinet wall to open or close the switch cabinet. Specifically, when the locking device is in the locked state, the cabinet door of the switch cabinet can be in the closed state, and when the locking device is in the unlocked state, the cabinet door of the switch cabinet can be in the locked state, thereby ensuring the reliability of the switch cabinet in the closed state and the convenience when switching to the open state.

[0039] Through the above technical solution, the drive assembly 3 drives the multiple locking arms 2 to rotate in the first or second direction, allowing the locking ends 22 to abut or disengage from the inner wall of the lock hole 61, thereby enabling the locking device to switch between a locked and unlocked state. This eliminates the need to worry about loosening between the screws and the mounting holes during switchgear installation, ensuring reliable installation and improving efficiency in assembly and disassembly.

[0040] Reference Figure 1-Figure 3 The locking device may further include a pin hole 13 and a spring pin 37. The number of the pin hole 13 and the spring pin 37 may be multiple, and the number of the pin hole 13 and the spring pin 37 may match the number of the locking arms 2, such as Figure 2As shown, the multiple pin holes 13 can respectively correspond to the positions of the multiple locking ends 22 in the locked state, and are evenly spaced on the periphery of the second vertical plate 12. The elastic expansion and contraction direction of the multiple spring pins 37 can extend horizontally, and one end of the spring pin 37 can be fixedly connected to the locking end 22, and the other end of the spring pin 37 can be elastically connected to the pin hole 13 in a pluggable manner. Specifically, when the locking device is in the unlocked state, the spring pin 37 can be elastically compressed between the pin hole 13 and the locking end 22. The inner diameter of the pin hole 13 can be no larger than the outer diameter of the end of the spring pin 37 that cooperates with it. In this way, while ensuring that the spring pin 37 can be inserted into the pin hole 13, it can also ensure that the spring pin 37 is removed from the pin hole 13, thereby ensuring that the locking end 22 can remain in its current position unchanged, and by compressing and accumulating elastic potential energy in the horizontal direction, it can store force for the next locking. When the locking device is in the locked state, the spring pin 37 releases the elastic potential energy accumulated last time in the horizontal direction and disengages from the pin hole 13, so that the locking end 22 can be disengaged from the second vertical plate 12 under the elastic action of the spring pin 37, effectively improving the release and switching efficiency of the locking end 22.

[0041] Reference Figure 1 The lock case 1 can be constructed as an internal hollow structure, with the first vertical plate 11 and the second vertical plate 12 spaced apart horizontally. The drive assembly 3 can include a plurality of first push rods 51 that are reciprocally movable along their own axes. The plurality of first push rods 51 can extend horizontally and be received within the lock case 1 in a one-to-one correspondence with the plurality of pin holes 13, so as to be able to extend through or retract into the lock case 1. During the process of switching the locking device from a locked state to an unlocked state, one end of the spring pin 37 is initially inserted into the pin hole 13. As the first push rods 51 move horizontally toward the second vertical plate 12 and extend through the pin hole 13, they can contact one end of the spring pin 37. As the first push rods 51 continue to push, the spring pin 37 can be withdrawn from the pin hole 13, releasing the elastic force of the spring pin 37, thereby allowing the locking end 22 to be removed from the lock case 1, thereby ensuring the driving effect of the locking end 22 and the convenience of controlling the spring pin 37. By providing a plurality of first push rods 51 to drive the spring pins 37 in a one-to-one correspondence, the control accuracy and efficiency of each spring pin 37 are effectively improved, and the consistency of the control of the spring pins 37 is ensured.

[0042] Reference Figure 1The drive assembly 3 may further include a mounting plate 53 and a second push rod 52. The mounting plate 53 may be vertically erected between the first vertical plate 11 and the second vertical plate 12 in the horizontal direction. One end of multiple first push rods 51 may be fixed to the mounting plate 53, and the other end may extend toward the second vertical plate 12, thereby ensuring the stability and reliability of the installation position of the first push rod 51 and improving the overall effect of the locking device. The second push rod 52 may extend in the horizontal direction and may reciprocate along its own axis, such as Figure 1 As shown, one end of the second push rod 52 can be fixedly connected to the mounting plate 53, and the other end of the second push rod 52 can pass through the first vertical plate 11 to extend outside the lock box 1. By driving the second push rod 52 to move toward the second vertical plate 12, the mounting plate 53 is pushed to drive multiple first push rods 51 to move toward the second vertical plate 12 at the same time, so that multiple first push rods 51 can simultaneously push their corresponding spring pins 37 out of the pin holes 13, further ensuring the consistency of the release of multiple lock arms 2, thereby ensuring the stability and reliability of the locking device during use. In the embodiment provided by the present disclosure, the second push rod 52 can also pass through the cabinet wall used to cooperate with the lock box 1, so that the user can operate the locking device on the side of the cabinet wall facing away from the lock box 1, thereby improving the convenience of operating the locking device. The end of the second push rod 52 extending from the first vertical plate 11 can be provided with a pressure plate 54. The provision of the pressure plate 54 makes it easier for the staff to press down or lift the second push rod 52.

[0043] Reference Figure 1 , the driving assembly 3 may include a bearing 31 and a torsion spring 32. The bearing 31 may extend in the horizontal direction, and one end of the bearing 31 may be used to be fixedly connected to the connecting end 21. A bearing hole 14 is provided on the second vertical plate 12 corresponding to the bearing 31 on the lock box 1. The other end of the bearing 31 is rotatably inserted in the bearing hole 14 around its own axis, so that the locking arm 2 can rotate relative to the lock box 1 in a vertical plane and ensure the stability of the locking arm 2 during rotation. The torsion spring 32 may be coaxially sleeved on the outside of the bearing 31, and the torsion spring 32 may be torsionally connected between the connecting end 21 and the second vertical plate 12 around the axis of the bearing 31. Refer to Figure 1-Figure 3 , when the locking arm 2 is in the Figure 2 In the state shown, the lock arm 2 is limited to the current position by the spring pin 37, the torsion spring 32 accumulates elastic potential energy and has a tendency to twist in the clockwise direction. When the spring pin 37 is pushed out by the first push rod 51, the lock arm 2 is separated from the second vertical plate 12. At this time, the torsion spring 32 releases elastic potential energy and drives the bearing 31 to drive the lock arm 2 to rotate clockwise, so that the locking end 22 can abut against the inner wall of the lock hole 61, thereby switching to the locked state; when the lock arm 2 is in the state shown Figure 3In the state shown, external force can be applied to the torsion spring 32 to cause the torsion spring 32 to accumulate elastic potential energy and have a tendency to twist in the counterclockwise direction. When the external force applied to the torsion spring 32 is removed, the elastic potential energy of the torsion spring 32 is released, and drives the bearing 31 to drive the locking arm 2 to rotate clockwise to remove the locking arm 2 from resisting the lock hole 61.

[0044] Reference Figure 1 and Figure 2 , the driving assembly 3 may further include a gear 33 and a tooth block 34. The gear 33 may be housed in the lock box 1, and the end of the bearing 31 that is away from the connection end 21 may extend into the lock box 1 through the bearing hole 14 and be fixedly connected coaxially with the gear 33. The outer diameter of the gear 33 may be larger than the inner diameter of the bearing hole 14, thereby preventing the bearing 31 from moving horizontally from the bearing hole 14 and ensuring the stability of the bearing 31 during installation and rotation. The tooth block 34 may be slidably mounted on the inner wall of the second vertical plate 12, and the tooth block 34 may slide in a direction close to or away from the gear 33 so as to be able to engage with or disengage from the gear 33. When the locking device is in a position such as Figure 3 When in the locked state shown, the tooth block 34 can slide toward the direction close to the gear 33 and engage with the gear 33, so that the locking arm 2 can remain in the current position unchanged. At the same time, the gear 33 can be further pushed to continue to rotate clockwise, so as to drive the bearing 31 to continue to rotate clockwise with the gear 33, and cause the torsion spring 32 to twist in the clockwise direction to accumulate elastic potential energy. In this way, when the tooth block 34 moves in the direction away from the gear 33 to cancel the external force applied to the bearing 31 and the torsion spring 32, the torsion spring 32 can release the elastic potential energy and drive the bearing 31 to rotate counterclockwise to cancel the locking arm 2's resistance to the inner wall of the lock hole 61, and then the spring pin 37 is snapped into the pin hole 13 to fix the position of the locking arm 2. At this time, the torsion spring 32 accumulates elastic potential energy again to prepare for the next switch to the locked state.

[0045] Reference Figure 1 A guide rail 35 extending radially along the bearing 31 can be installed on the inner wall of the second vertical plate 12. The guide rail 35 can be set between the corresponding gear 33 and the pin hole 13. The guide rail 35 can be slidably connected to the gear block 34, and then the moving path of the gear block 34 is limited by the guide rail 35. While ensuring the stability of the gear block 34 during movement, it can also ensure that the gear block 34 will not interfere with other components during movement.

[0046] Reference Figure 1The driving assembly 3 may further include a connecting rod 36, one end of which may be hinged to the mounting plate 53, and the other end of the connecting rod 36 may be fixedly connected to the gear block 34, so that the connecting rod 36 and the gear block 34 can form a crank slider structure and ensure stability and reliability during the driving force transmission process. Specifically, when the second push rod 52 moves in the horizontal direction toward the second vertical plate 12, the mounting plate 53 follows the movement of the second push rod 52 and moves away from the second vertical plate 12. At this time, the first push rod 51 pushes the spring pin 37 out of the pin hole 13, and the connecting rod 36 swings in the horizontal plane toward the direction away from the second push rod 52, thereby driving the tooth block 34 to slide along the extension direction of the guide rail 35 and toward the direction close to the gear 33, and then engage with the gear 33; when the second push rod 52 moves in the horizontal direction toward the direction away from the second vertical plate 12, the mounting plate 53 follows the movement of the second push rod 52 and moves away from the second vertical plate 12. At this time, the connecting rod 36 swings in the horizontal plane toward the direction close to the second push rod 52, thereby driving the tooth block 34 to slide along the extension direction of the guide rail 35 toward the direction away from the gear 33, and then disengage from the gear 33.

[0047] Reference Figure 1 The locking arm 2 is constructed as an arc-shaped sheet structure, and the width of the locking arm 2 gradually decreases from the locking end 22 toward the connecting end 21. The arc-shaped sheet structure of the locking arm 2 can provide a flexible opening and closing function for the locking device. At the same time, due to the design of the gradually decreasing width of the locking arm 2, the locking device can more firmly press against the inner wall of the lock hole 61 when in the locked state, thereby improving the safety of the switch cabinet in the locked state and effectively avoiding the problem of stress concentration between the locking end 22 and the inner wall of the lock hole 61. Figure 3 In the vertical plane, the cross section of the locking hole 61 can be constructed as a square hole, which can effectively reduce the risk of relative sliding between the locking arm 2 and the inner wall of the locking hole 61 when in the locked state.

[0048] Reference Figure 1The locking device may further include a lock panel 4, which may be embedded in a cabinet wall. In the embodiment provided by the present disclosure, a groove may be provided on the cabinet wall, and the outer contour of the lock panel 4 may match the inner contour of the groove to ensure a stable connection between the groove and the lock panel 4 while achieving a detachable connection between the cabinet wall and the lock panel 4. The cross-section of the lock box 1 in the horizontal plane may be constructed as a U-shaped structure with an opening facing the lock panel 4. The end surface of the U-shaped structure where the opening is located is formed as a first vertical plate 11 for connecting to the lock panel 4. This arrangement not only makes the lock box 1 more stable in the horizontal plane, but also enables better connection with the lock panel 4. When the internal components of the lock box 1 require inspection and maintenance, the U-shaped structure can be separated from the lock panel 4. When the locking device includes the second push rod 52 mentioned above, a through hole 41 can be opened on the lock body panel 4, and the side of the lock body panel 4 facing away from the lock box 1 can be used as the side facing the user. The second push rod 52 can pass through the lock body panel 4 slidably through the hole 41, and the end of the second push rod 52 provided with the pressure plate 54 can be set on the side of the lock body panel 4 facing away from the lock box 1, so as to facilitate the operator to control the second push rod 52.

[0049] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0051] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A locking device for a switch cabinet, characterized in that: Used to detachably connect the switch cabinet wall to a preset position, wherein a lock hole is provided at the preset position, and the locking device includes: A lock box having a first vertical plate mounted on the cabinet wall and a second vertical plate arranged horizontally on a side of the first vertical plate away from the switch cabinet; a plurality of locking arms uniformly distributed at intervals on the periphery of the second vertical plate, each of the locking arms having a connecting end and a locking end connected to each other, the connecting end being rotatably connected to the lock box in a vertical plane; and A drive assembly is used to cooperate with the connecting end to enable the multiple locking arms to have an unlocked state or a locked state, and the drive assembly is configured as follows: In the locked state, driving the plurality of connecting ends to rotate in a first direction so that the locking ends extend out of the lock box and abut against the inner wall of the lock hole; In the unlocked state, the connecting end is driven to rotate in a second direction away from the first direction, and the locking end is separated from the inner wall of the lock hole and retracted into the lock box.

2. The locking device according to claim 1, characterized in that: Also includes: a plurality of pin holes, corresponding to the positions of the plurality of locking ends in the locked state, and spaced and evenly distributed on the periphery of the second vertical plate; and A plurality of spring pins extend in a horizontal direction in an elastic expansion and contraction direction. One end of the spring pin is fixedly connected to the locking end, and the other end is elastically connected to the pin hole in a pluggable manner.

3. The locking device according to claim 2, characterized in that: The lock box is constructed as an internal hollow structure, the first vertical plate and the second vertical plate are arranged at intervals in the horizontal direction, and the driving assembly includes multiple first push rods that can move repeatedly along their own axes. The multiple first push rods extend in the horizontal direction and are accommodated in the lock box in a one-to-one correspondence with the multiple pin holes, so that they can be extended out or retracted into the lock box through the pin holes.

4. The locking device according to claim 3, characterized in that: Also includes: A mounting plate is vertically disposed between the first vertical plate and the second vertical plate in the horizontal direction, wherein one end of the plurality of first push rods is commonly fixed to the mounting plate and the other end extends toward the second vertical plate; and The second push rod extends in the horizontal direction and can move back and forth along its own axis. One end of the second push rod is fixedly connected to the mounting plate, and the other end passes through the first vertical plate and extends to the outside of the lock box.

5. The locking device according to claim 4, characterized in that: The drive assembly includes: A bearing extending in a horizontal direction, one end of which is used for fixed connection with the connecting end; and a torsion spring, coaxially sleeved on the outside of the bearing and torsionally connected between the connecting end and the second vertical plate around the axis of the bearing; Wherein, a bearing hole is provided on the second vertical plate of the lock box corresponding to the bearing, and the other end of the bearing is rotatably inserted into the bearing hole around its own axis.

6. The locking device according to claim 5, characterized in that: The drive assembly further includes: A gear is accommodated in the lock box, and one end of the bearing, which is away from the connecting end, extends into the lock box through the bearing hole and is coaxially fixedly connected to the gear; and The tooth block is slidably mounted on the inner wall of the second vertical plate and is used for engaging with or disengaging from the gear.

7. The locking device according to claim 6, characterized in that: A guide rail extending radially along the bearing is installed on the inner wall of the second vertical plate, and the guide rail is slidably connected to the gear block.

8. The locking device according to claim 7, characterized in that: The driving assembly further comprises a connecting rod, one end of which is hinged to the mounting plate, and the other end of which is fixedly connected to the gear block.

9. The locking device according to claim 1, characterized in that: The locking arm is constructed as an arc-shaped sheet structure, and the width of the locking arm gradually decreases from the locking end toward the connecting end.

10. The locking device according to claim 1, characterized in that: It also includes a lock body panel embedded in the cabinet wall, the cross-section of the lock box in the horizontal plane is constructed as a U-shaped structure with an opening toward the lock body panel, and the end surface where the opening of the U-shaped structure is located is formed as the first vertical plate for connecting with the lock body panel.

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