Interlocking device for cabinet door

Abstract

The utility model provides an interlocking device for a cabinet door. The interlocking device comprises a rubber shell base, a limiting plate and a driving plate, the driving plate is provided with a pressing part and a transmission part; the limiting plate is movably arranged on the rubber shell base through an elastic piece and provided with a spring bolt part. After being pressed, the pressing part correspondingly drives the transmission part to move so as to trigger the limiting plate to press the elastic piece to move, so that the spring bolt part is switched to the avoiding position along the initial position; after the cabinet door is closed, the pressing part is pressed to correspondingly drive the transmission part so as to further act on the limiting plate, so that the switching operation is simple and visual, unlocking or locking can be rapidly completed, and when the cabinet door is closed, it is ensured that the position of the spring bolt part can be switched so as to trigger unlocking of the limiting plate; and when the cabinet door is opened, the cabinet door is reset to the initial position for locking, so that the maintenance operation can be carried out more safely and reliably after the cabinet door is opened, and the movement control of the chassis can be carried out after the cabinet door is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of door closing interlocks, and more specifically, to an interlocking device for a cabinet door. Background Art

[0002] On existing switch cabinets, in order to prevent operators from making misoperations, a door closing interlock is usually set, that is, the position movement of the chassis truck can only be controlled when the cabinet door is closed, and the chassis truck is immediately locked after the cabinet door is opened to prevent it from leaving the test position, so as to reduce the occurrence of safety accidents.

[0003] At present, the door closing interlock of the cabinet door is usually arranged at the position of the cabinet door, and a hook head corresponding to extending out for interlocking with the cabinet door is provided. The hook head is reset by a tension spring. The existing door closing interlock of the cabinet door usually sets a driving screw to facilitate driving the hook head to rotate and sets a limit sleeve to limit the rotation of the hook head to avoid interference and unreliable interlocking. Generally, there are two limit sleeves and they are symmetrically arranged on the upper and lower sides of the hook head.

[0004] Therefore, the existing door closing interlock of the cabinet door has more parts, resulting in high product production costs. Moreover, the vertical limit sleeve is set, making it extremely difficult to repair the door closing interlock device in case of a broken tension spring, etc. Usually, the entire end beam needs to be disassembled, and even the end beam needs to be replaced, making the product maintenance troublesome and costly. Summary of the Utility Model

[0005] In view of this, the purpose of the present utility model is to provide an interlocking device for a cabinet door to solve the above problems.

[0006] The present utility model adopts the following scheme:

[0007] The present application provides an interlocking device for a cabinet door, including a plastic shell base, a limit plate, and a driving plate; the driving plate is rotatably hinged to the plastic shell base, and is provided with a pressing part and a transmission part; the limit plate is movably arranged on the plastic shell base through an elastic member, and is provided with a locking tongue part that can be exposed outside the plastic shell base or hidden inside the plastic shell base; when the pressing part is pressed, it correspondingly drives the transmission part to move, so as to trigger the limit plate to press the elastic member to move, and its locking tongue part switches from the initial position to the avoidance position.

[0008] As a further improvement, the pressing part is formed at the upper end of the driving plate, the transmission part is formed at the lower end of the driving plate, and the whole is in a V shape.

[0009] As a further improvement, a hinge seat is formed at the rear of the plastic shell base, and the middle part of the V shape is connected to the hinge seat through a hinge shaft.

[0010] As a further improvement, the pressing portion is configured as a flexible roller structure, and in the initial position, the upper half of the V-shaped structure is tiltedly arranged outside the plastic shell base.

[0011] As a further improvement, the plastic shell base is provided with an active cavity penetrating the bottom, and the limit plate and its elastic member are correspondingly arranged in the active cavity.

[0012] As a further improvement, an opening connected to the movable cavity is provided in the front of the plastic shell base, and the opening can allow the locking tongue part to move back and forth and be partially exposed outside the opening in the initial position.

[0013] As a further improvement, the limit plate is provided with a snap-fitting groove abutting against the transmission part, and the transmission part at least partially extends into the snap-fitting groove to abut against the groove wall.

[0014] As a further improvement, the elastic member is sleeved on the rear section of the limiting plate and abuts against the rear side wall of the plastic shell base, and the engaging groove is located in front of the elastic member.

[0015] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0016] The interlocking device for cabinet doors of the present application drives the pressing part to the transmission part after the cabinet door is closed, thereby further acting on the limit plate, making the switching operation simple and intuitive, and can quickly complete unlocking or locking. When the cabinet door is closed, it ensures that the position of the lock tongue part can be switched to trigger the unlocking of the limit plate, and reset to the initial position to lock when the cabinet door is opened, thereby ensuring that maintenance operations can be carried out more safely and reliably after the cabinet door is opened, and the movement control of the chassis vehicle can be carried out only after the cabinet door is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an interlocking device for a cabinet door according to an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Explosion diagram in ;

[0019] Figure 3 It is a cross-sectional view of an interlocking device for a cabinet door according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic structural diagram of the interlocking device for cabinet doors of an embodiment of the utility model under other viewing angles.

[0021] Icons: 1- plastic shell base; 2- limit plate; 3- driving plate; 4- pressing part; 5- transmission part; 6- elastic member; 7- locking tongue part; 8- hinge seat; 9- snap groove. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model.

[0023] Embodiment

[0024] Combined with Figures 1 to 4 , this embodiment provides an interlocking device for a cabinet door, including a plastic shell base 1, a limit plate 2, and a driving plate 3. The driving plate 3 is rotatably hinged to the plastic shell base 1, and is provided with a pressing portion 4 and a transmission portion 5. The limit plate 2 is movably arranged on the plastic shell base 1 through an elastic member 6, and is provided with a locking tongue portion 7 that can be exposed outside the plastic shell base 1 or hidden inside the plastic shell base 1. When the pressing portion 4 is pressed, it correspondingly drives the transmission portion 5 to move, so as to trigger the limit plate 2 to press the elastic member 6 to move, and make its locking tongue portion 7 switch from the initial position to the avoidance position.

[0025] For the above interlocking device, after the cabinet door is closed, it presses the pressing portion 4 to correspondingly drive the transmission portion 5, and further acts on the limit plate 2, so that the switching operation is simple and intuitive, and unlocking or locking can be quickly completed. Moreover, when the cabinet door is closed, it ensures that the position of the locking tongue portion 7 can be switched to trigger the unlocking of the limit plate 2, and when the cabinet door is opened, it resets to the initial position for locking, thereby ensuring that maintenance operations can be carried out more safely and reliably after the cabinet door is opened, and the movement control of the turning gear can only be carried out after the cabinet door is closed.

[0026] In this embodiment, the pressing portion 4 is formed at the upper end of the driving plate 3, the transmission portion 5 is formed at the lower end of the driving plate 3, and the overall shape is V-shaped. On the one hand, the V-shaped structure enhances the stability of the driving plate 3, making the force transmission between the pressing portion 4 and the transmission portion 5 more uniform. On the other hand, the space inside the plastic shell base 1 can be better utilized, making the overall design more compact.

[0027] Further, a hinge seat 8 is formed at the rear of the plastic shell base 1, and the middle part of the V shape is connected to the hinge seat 8 through a hinge shaft. Through the connection of the hinge shaft, the V-shaped structure can rotate or tilt within a certain range, making it easier to adapt to different operating angles and position requirements. Moreover, the connection method between the hinge seat 8 and the hinge shaft helps to disperse the stress of the V-shaped structure during the working process, reduce local stress concentration, and extend the service life of the equipment.

[0028] In this embodiment, the pressing part 4 is configured as a flexible roller structure. In the initial position, the upper half of the V shape is inclined and arranged outside the plastic shell base 1. Among them, the flexible roller structure can reduce the friction during the pressing process, make the operation smoother and more fluent, and improve the user experience. In addition, the upper half of the V shape is inclined and arranged outside the plastic shell base 1, so that the pressing part 4 is easier to contact the object to be pressed in the initial position, improving the operation efficiency.

[0029] In this embodiment, the plastic shell base 1 is provided with a movable cavity penetrating through the bottom, and the limiting plate 2 and its elastic member 6 are correspondingly arranged in the movable cavity. In the initial position, the elastic member 6 correspondingly provides an elastic force for the limiting plate 2 to maintain in the locked state. After closing the cabinet door, the driving plate 3 is pressed to drive the limiting plate 2 to move against the elastic member 6, and at this time, the lock tongue part 7 switches to the avoidance position to maintain in the unlocked state. Obviously, the limiting plate 2 is controlled to move in the movable cavity. After opening the cabinet door to release the corresponding pressing, under the action of the elastic member 6, the limiting plate 2 quickly resets to the initial position.

[0030] It should be understood that when the lock tongue part 7 is in the initial position, it correspondingly locks the external screw rod to prevent it from rotating and driving the chassis truck to move, ensuring the stability of the electrical appliances in the switch cabinet. When the lock tongue part 7 switches to the avoidance position, it correspondingly unlocks so that the screw rod can be rotated externally to drive the chassis.

[0031] Further, an opening communicating with the movable cavity is provided in the front of the plastic shell base 1, and the opening allows the lock tongue part 7 to reciprocate and is partially exposed outside the opening in the initial position. Obviously, a limiting structure is correspondingly provided on the base to limit the lock tongue part 7 in the initial position, so as to realize the flexible reciprocating movement of the lock tongue part 7 at the movable cavity and the opening.

[0032] In this embodiment, the limiting plate 2 is provided with a clamping groove 9 that abuts against the transmission part 5, and at least part of the transmission part 5 extends into the clamping groove 9 and abuts against the groove wall for cooperation. The precise abutment between the clamping groove 9 on the limiting plate 2 and the transmission part 5 enables the transmission part 5 to effectively drive the limiting plate 2 to move, realize the switching of the lock tongue part 7, and ensure the high-efficiency and reliability of the transmission process.

[0033] Wherein, the elastic member 6 is sleeved on the rear section of the limiting plate 2 and abuts against the rear side wall of the plastic housing base 1, and the engaging groove 9 is located in front of the elastic member 6. Thus, after the pressing part 4 is pressed, the limiting plate 2 is correspondingly driven to press backward against the elastic member 6, and the locking tongue part 7 located in the front correspondingly moves backward to the avoidance position, correspondingly realizing the unlocking operation.

[0034] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention.

Claims

1. An interlocking device for a cabinet door, characterized in that, It includes a plastic shell base, a limiting plate, and a driving plate; the driving plate is rotatably hinged and configured on the plastic shell base, and is provided with a pressing part and a transmission part; the limiting plate is movably configured on the plastic shell base through an elastic member, and is provided with a locking tongue part that can be exposed outside the plastic shell base or hidden inside the plastic shell base; after the pressing part is pressed, it correspondingly drives the transmission part to move, so as to trigger the limiting plate to press the elastic member to move, and make its locking tongue part switch from the initial position to the avoidance position.

2. The interlocking device for a cabinet door according to claim 1, characterized in that, The pressing part is formed at the upper end of the driving plate, the transmission part is formed at the lower end of the driving plate, and the whole is in a V shape.

3. The interlocking device for a cabinet door according to claim 2, characterized in that, A hinge seat is formed at the rear of the plastic shell base, and the middle part of the V shape is connected to the hinge seat through a hinge shaft.

4. The interlocking device for a cabinet door according to claim 2, characterized in that, The pressing part is configured as a flexible roller structure. In the initial position, the upper half of the V shape is inclined and arranged outside the plastic shell base.

5. The interlocking device for a cabinet door according to claim 1, characterized in that, The plastic shell base is provided with an activity cavity penetrating through the bottom, and the limiting plate and its elastic member are correspondingly arranged in the activity cavity.

6. The interlocking device for a cabinet door according to claim 5, characterized in that, An opening communicating with the activity cavity is formed in the front of the plastic shell base, and the opening can allow the locking tongue part to reciprocate and be partially exposed outside the opening in the initial position.

7. The interlocking device for a cabinet door according to claim 1, characterized in that, The limiting plate is provided with a clamping groove that abuts against the transmission part, and at least part of the transmission part extends into the clamping groove and abuts against the groove wall for cooperation.

8. The interlocking device for a cabinet door according to claim 7, characterized in that, The elastic member is sleeved on the rear section of the limiting plate and abuts against the rear side wall of the plastic shell base, and the clamping groove is located in front of the elastic member.

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