Lower cabinet door interlocking switch door device of C-GIS cabinet

Abstract

The utility model relates to a kind of C-GIS cabinet's lower cabinet door interlock switch door device including cabinet, sliding plate, interlock rod, rotating lock and elastic piece, upper interlock rod, the movement of interlock rod in sliding plate waist type hole is converted into the horizontal movement of sliding plate by upper and lower pulling action, sliding plate horizontal movement makes recess reach the pin below of rotating lock, pin is embedded in recess locking sliding plate under the action of elastic piece and realizes self-locking, the hook portion of rotating lock releases cabinet door hook lock, door opening operation is simplified to single upper lifting action, when pushing cabinet door closing, cabinet door hook lock collides rotating lock and makes it anticlockwise rotation, pin exits recess, the hook portion of rotating lock is immediately rehooked cabinet door hook lock, interlock rod is automatically fallen and reset under the action of gravity, sliding plate moves horizontally to left, pin is away from recess, realized the complete automatic reset of interlock mechanism after closing, eliminate the security risk caused by human forget manual locking step, improve operating efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a lower cabinet door interlocking switch device for a C-GIS cabinet. Background Technology

[0002] The interlocking mechanisms of existing C-GIS cabinet doors mostly use interlocking pins that require manual insertion and removal or structures that require step-by-step rotation to achieve locking. After closing the cabinet door, the operator must perform an additional manual locking action to restore the interlocking mechanism to the protective state. This process takes too long, and if this step is forgotten due to human negligence, the cabinet door will be in an unreliable interlocking state, posing a safety hazard.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a lower cabinet door interlocking opening and closing device for a C-GIS cabinet, which solves the problem that if the operation time is too long and this step is forgotten due to human negligence, the cabinet door may be in an unreliable interlocking state, posing a safety hazard.

[0005] The technical solution adopted in this utility model is as follows: A C-GIS cabinet lower door interlocking opening and closing device includes: The cabinet has a door hinged to its left side, and a hook lock is provided on the right rear end of the door. A sliding plate is installed in the cabinet body that can slide left and right. The right side of the sliding plate has a waist-shaped hole that slopes downward from left to right, and the left side of the top of the sliding plate has a groove. An interlocking rod is slidably installed inside the cabinet and located on the side near the waist-shaped hole, with the rear end of the bottom end of the interlocking rod extending into the waist-shaped hole; A rotary lock is rotatably mounted inside the cabinet. The right side of the rotary lock has a pin that can be inserted into or detached from the groove, and the left side of the rotary lock has a hook that cooperates with the hook lock. An elastic element, the bottom end of which is fixed to the cabinet body, and the top end of which is fixed to the bottom end of the rotary lock near the pin.

[0006] A further technical solution is that the bottom end of the rotary lock is provided with an inclined step on the side near the hook. When the cabinet door is closed, the hook lock collides with the inclined step, the rotary lock rotates counterclockwise, the pin is embedded in the groove, and the hook is locked with the hook lock.

[0007] A further technical solution is that a guide sleeve is provided vertically inside the cabinet, and the top end of the interlocking rod passes through the guide sleeve axially.

[0008] A further technical solution is that the cabinet is provided with a fixed plate, and the left and right sides of the fixed plate are symmetrically bent forward to form extensions. Guide holes are symmetrically opened on the two extensions, and the sliding plate passes through the two guide holes.

[0009] A further technical solution is that the inner wall of the groove near the door panel is rounded.

[0010] A further technical solution is that the interlocking rod includes a first rod and a second rod, the first rod is set vertically, the second rod is set horizontally from front to back, the front end of the second rod is connected to the bottom end of the first rod, and the rear end of the second rod extends into the waist-shaped hole.

[0011] A further technical solution is that a handle is provided on the right side of the bottom end of the first rod.

[0012] A further technical solution is that the elastic element is a spring.

[0013] The beneficial effects of this utility model embodiment are as follows: (I) A C-GIS cabinet lower door interlocking opening and closing device includes a cabinet body, a sliding plate, an interlocking rod, a rotary lock, and an elastic element. Lifting the interlocking rod converts the up-and-down lifting action into horizontal movement of the sliding plate through the movement of the interlocking rod within the oblong hole of the sliding plate. The horizontal movement of the sliding plate causes the groove to reach below the pin of the rotary lock. Under the action of the elastic element, the pin is embedded in the groove to lock the sliding plate and achieve self-locking. The hook of the rotary lock releases the cabinet door hook lock. The opening operation is simplified to a single lifting action. When pushing the cabinet door to close, the cabinet door hook lock collides with the rotary lock, causing it to rotate counterclockwise. The pin exits the groove, and the hook of the rotary lock then re-hooks the cabinet door hook lock. The interlocking rod automatically falls and resets under the action of gravity. The sliding plate moves horizontally to the left, and the pin moves away from the groove. This achieves a completely automatic reset of the interlocking mechanism after the door is closed, eliminating the safety hazard caused by human forgetting the manual locking step and improving operational efficiency and reliability.

[0014] (ii) Furthermore, a sloping step is provided on the bottom end of the rotary lock near the hook. When the cabinet door is closed, the hook lock collides with the sloping step, causing the rotary lock to rotate counterclockwise. The pin is embedded in the groove, and the hook locks the door. The sloping step utilizes the kinetic energy of the cabinet door hook lock when the door is closed. The component force generated by colliding with the sloping step forces the rotary lock to rotate counterclockwise, driving the pin to disengage from the groove of the sliding plate to release the lock. This causes the hook on its left side to move downward and accurately hook the cabinet door hook lock, transforming the simple cabinet door closing action into a resetting action of the interlocking mechanism, requiring no additional manual operation.

[0015] (iii) Furthermore, the inner wall of the groove near the door panel is rounded. The smooth transition structure allows the pin of the rotating lock to slide smoothly into the bottom of the groove and reliably lock, even with slight deviations, by being guided by the rounded bevel. This avoids mechanical jamming or component wear caused by sharp corners, and improves the smoothness and accuracy of the interlocking action. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the interlocking opening and closing device for the lower cabinet door of a C-GIS cabinet according to this utility model.

[0017] Figure 2 This is a rear view structural diagram of the interlocking opening and closing device for the lower cabinet door of a C-GIS cabinet according to this utility model.

[0018] Figure 3 This is a top view of the interlocking opening and closing device for the lower cabinet door of a C-GIS cabinet according to this utility model.

[0019] In the picture: 100. Sliding plate; 101. Waist-shaped hole; 102. Groove; 200. Interlocking rod; 210. First rod; 211. Handle; 220. Second rod; 300. Rotary lock; 301. Pin; 302. Hook; 303. Sloping step; 400. Elastic element; 500. Cabinet door; 501. Hook lock; 600. Guide sleeve; 700. Fixing plate; 701. Extension. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] First embodiment: A C-GIS cabinet lower door interlocking opening and closing device includes a cabinet body (not shown in the figure), a sliding plate 100, an interlocking rod 200, a rotary lock 300, and an elastic element 400. A cabinet door 500 is hinged to the left side of the cabinet body, and a hook lock 501 is provided on the right rear end of the cabinet door 500. The sliding plate 100 is slidably disposed within the cabinet body, and a waist-shaped hole 101 sloping downwards from left to right is provided on the right side of the sliding plate 100. A groove 102 is provided on the left side of the top of the sliding plate 100. The interlocking rod 200 is slidably disposed within the cabinet body, located near the waist-shaped hole 101, and the rear end of the bottom of the interlocking rod 200 extends into the waist-shaped hole 101. For example, the interlocking rod 200 includes a first rod 210 and a second rod 220. The first rod 210 is vertically arranged, and the second rod 220 is horizontally arranged from front to back. The front end of the second rod 220 is connected to the bottom end of the first rod 210, and the rear end of the second rod 220 extends into the waist-shaped hole 101. A handle 211 is provided on the right side of the bottom end of the first rod 210.

[0022] The rotary lock 300 is rotatably mounted inside the cabinet. The right side of the rotary lock 300 has a pin 301 that can be inserted into or disengaged from the groove 102, and the left side has a hook 302 that cooperates with the hook lock 501. The bottom end of the elastic element 400 is fixed inside the cabinet, and the top end of the elastic element 400 is fixed to the bottom end of the rotary lock 300 near the pin 301. For example, the elastic element 400 is a spring.

[0023] Furthermore, the bottom end of the rotary lock 300, near the hook 302, is provided with a sloping step 303. Specifically, the sloping step 303 slopes downward from left to right, and its thickness is greater than that of the rotary lock 300. When the cabinet door 500 is closed, the hook lock 501 collides with the sloping step 303, causing the rotary lock 300 to rotate counterclockwise. The pin 301 is inserted into the groove 102, and the hook 302 locks with the hook lock 501. The sloping step 303 utilizes the kinetic energy of the cabinet door 500 hook lock 501 moving when the door is closed. The force generated by colliding with the sloping step 303 forces the rotary lock 300 to rotate counterclockwise, driving the pin 301 to disengage from the groove 102 of the sliding plate 100 to release the lock. This causes the hook 302 on its left side to move downward and accurately hook the cabinet door 500 hook lock 501, transforming the simple closing action of the cabinet door 500 into a resetting action of the interlocking mechanism, requiring no additional manual operation.

[0024] Furthermore, a guide sleeve 600 is vertically provided inside the cabinet, and the top end of the interlocking rod 200 passes axially through the guide sleeve 600. The guide sleeve 600 provides vertical guidance and limitation for the up and down movement of the interlocking rod 200, ensuring that the interlocking rod 200 always maintains a vertical movement trajectory. The vertical guidance ensures that the bottom end of the interlocking rod 200 can always maintain a stable engagement with the inclined oblong hole 101 of the sliding plate 100, thereby converting linear motion into horizontal displacement.

[0025] Furthermore, the cabinet contains a fixed plate 700, with symmetrical forward bends on both sides of the fixed plate 700 forming extensions 701. Symmetrical guide holes are provided on the two extensions 701, through which the sliding plate 100 passes. The fixed plate 700 constitutes a horizontal movement guide mechanism for the sliding plate 100. The two symmetrical guide holes restrict the sliding plate 100 to slide only in the left and right horizontal directions, preventing it from wobbling or deflecting during movement. This ensures that the groove 102 on the plate accurately aligns with the pin 301 of the rotary lock 300 and reliably engages or disengages.

[0026] Furthermore, the inner wall of the groove 102 near the door panel is rounded. This smooth transition structure allows the pin 301 of the rotating lock 300 to slide smoothly into the bottom of the groove 102 even with slight deviations, thanks to the rounded bevel, thus achieving reliable locking. This also avoids mechanical jamming or component wear caused by sharp corners, improving the smoothness and accuracy of the interlocking action.

[0027] In operation, this embodiment is as follows: When cabinet door 500 needs to be opened, the operator lifts handle 211. The second rod 220 of the interlocking rod 200 slides within the oblong hole 101 of the sliding plate 100. Since the oblong hole 101 is a downward-sloping structure from left to right, the sliding of the second rod 220 forces the sliding plate 100 to move horizontally to the right until the groove 102 on the sliding plate 100 moves directly below the pin 301 of the rotary lock 300. At this time, under the elastic force of the elastic element 400, the pin 301 of the rotary lock 300 is embedded in the groove 102 to achieve self-locking. Simultaneously, the rotary lock 300 rotates clockwise around its rotation point, and the hook 302 on its left side is lifted, releasing the hook lock 501 on the cabinet door 500. The door can be opened at 0; when the cabinet door 500 is closed, the hook lock 501 on the cabinet door 500 moves inward with the cabinet door 500 and collides with the inclined step 303 at the bottom of the rotary lock 300. The collision force forces the rotary lock 300 to rotate counterclockwise, and its pin 301 exits from the groove 102, releasing the lock on the sliding plate 100. The interlocking rod 200 falls automatically under the action of gravity, and its second rod 220 slides in the opposite direction in the waist-shaped hole 101 and drives the sliding plate 100 to reset to the left. At the same time, the hook 302 of the rotary lock 300 re-hooks the hook lock 501 on the cabinet door 500 during the rotation, so that the interlocking is automatically reset at the moment the closing action is completed, ensuring that the cabinet door 500 is reliably locked.

[0028] In this embodiment, the movement of the interlocking rod 200 within the oblong hole 101 of the sliding plate 100 converts the up-and-down lifting action into a horizontal movement of the sliding plate 100. This horizontal movement causes the groove 102 to reach below the pin 301 of the rotary lock 300. Under the action of the elastic element 400, the pin 301 engages with the groove 102, locking the sliding plate 100 and achieving self-locking. The hook 302 of the rotary lock 300 releases the latch 501 of the cabinet door 500, simplifying the opening operation to a single upward lifting action, pushing the cabinet door 500 to close. When the door is closed, the hook lock 501 of the cabinet door 500 collidees with the rotary lock 300, causing it to rotate counterclockwise. The pin 301 disengages from the groove 102, and the hook 302 of the rotary lock 300 then re-hooks the hook lock 501 of the cabinet door 500. The interlocking rod 200 automatically falls and resets under the action of gravity. The sliding plate 100 moves horizontally to the left, and the pin 301 moves away from the groove 102. This achieves a completely automatic reset of the interlocking mechanism after the door is closed, eliminating the safety hazards caused by forgetting the manual locking steps and improving operational efficiency and reliability.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A lower cabinet door interlocking opening and closing device for a C-GIS cabinet, characterized in that, include: The cabinet has a door hinged to its left side, and a hook lock is provided on the right rear end of the door. A sliding plate is installed in the cabinet body that can slide left and right. The right side of the sliding plate has a waist-shaped hole that slopes downward from left to right, and the left side of the top of the sliding plate has a groove. An interlocking rod is slidably installed inside the cabinet and located on the side near the waist-shaped hole, with the rear end of the bottom end of the interlocking rod extending into the waist-shaped hole; A rotary lock is rotatably mounted inside the cabinet. The right side of the rotary lock has a pin that can be inserted into or detached from the groove, and the left side of the rotary lock has a hook that cooperates with the hook lock. An elastic element, the bottom end of which is fixed to the cabinet body, and the top end of which is fixed to the bottom end of the rotary lock near the pin.

2. The interlocking opening and closing device for the lower cabinet door of the C-GIS cabinet according to claim 1, characterized in that: The bottom of the rotary lock has an inclined step on the side near the hook. When the cabinet door is closed, the hook lock collides with the inclined step, the rotary lock rotates counterclockwise, the pin is embedded in the groove, and the hook lock is locked with the hook lock.

3. The interlocking opening and closing device for the lower cabinet door of the C-GIS cabinet according to claim 1, characterized in that: The cabinet is equipped with a guide sleeve in the vertical direction, and the top end of the interlocking rod passes through the guide sleeve axially.

4. The interlocking opening and closing device for the lower cabinet door of the C-GIS cabinet according to claim 1, characterized in that: The cabinet is equipped with a fixed plate, and the left and right sides of the fixed plate are symmetrically bent forward to form extensions. Guide holes are symmetrically opened on the two extensions, and the sliding plate passes through the two guide holes.

5. The interlocking opening and closing device for the lower cabinet door of the C-GIS cabinet according to claim 1, characterized in that: The inner wall of the groove near the door panel has rounded corners.

6. The interlocking opening and closing device for the lower cabinet door of the C-GIS cabinet according to claim 1, characterized in that: The interlocking rod includes a first rod and a second rod. The first rod is vertically arranged, and the second rod is horizontally arranged from front to back. The front end of the second rod is connected to the bottom end of the first rod, and the rear end of the second rod extends into the waist-shaped hole.

7. The interlocking opening and closing device for the lower cabinet door of the C-GIS cabinet according to claim 6, characterized in that: A handle is provided on the right side of the bottom end of the first rod.

8. The interlocking opening and closing device for the lower cabinet door of the C-GIS cabinet according to claim 1, characterized in that: The elastic element is a spring.

Images