Multifunctional drawer type low voltage switchgear
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QUZHOU HUATONG ELECTRIC CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-26
Smart Images

Figure CN224418272U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage switchgear, and more particularly to a multi-functional drawer-type low-voltage switchgear. Background Technology
[0002] With social development, low-voltage switchgear, as an important power distribution device in the power system, is widely used in industrial, commercial and civil buildings and other fields. It is mainly used to control, protect and monitor low-voltage electrical equipment to ensure the safe and stable operation of the power system.
[0003] However, traditional low-voltage switchgear mostly adopts a fixed structure, which cannot flexibly accommodate multiple electrical devices. Furthermore, the non-drawer-type design requires a complete power outage and disassembly of the equipment during maintenance, which is cumbersome and time-consuming. This not only increases the complexity of electrical equipment installation but also makes it difficult for maintenance personnel to quickly locate and replace faulty equipment, prolonging power outage time, affecting the continuity of power supply, and increasing the risk of equipment damage due to frequent disassembly, thus reducing the practicality and reliability of low-voltage switchgear. Utility Model Content
[0004] In view of this, the present invention provides a multifunctional drawer-type low-voltage switchgear, the main technical problem to be solved is: to solve the problems of inconvenient placement of electrical equipment, difficult maintenance and time consumption caused by the non-drawer-type structure of traditional low-voltage switchgear.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-functional drawer-type low-voltage switch cabinet, including a cabinet body, wherein multiple drawer-type mounting plates are movably installed inside the cabinet body, a pull plate is fixedly connected to the front end of each drawer-type mounting plate, a locking component is installed between the cabinet body and the drawer-type mounting plates, and a sealing door is movably installed at the front end of the cabinet body;
[0006] The locking assembly includes a mounting box, a lock block, a lock groove, a spring, and a lever. Multiple mounting boxes are fixedly connected to the inner wall of the cabinet. Two lock blocks are movably installed inside the pull plate. A lock groove is opened at the front end of the mounting box. The lock block is engaged in the lock groove at the corresponding position. A spring is fixedly installed between the lock block and the pull plate. A lever is fixedly connected to the end of the lock block away from the lock groove.
[0007] By adopting the above technical solution, the drawer-type mounting plate is locked by the spring pushing the locking block into the locking groove; the pull block is moved to disengage the locking block from the locking groove, and the spring pushes the push plate to pop out the drawer-type mounting plate, which facilitates the locking and quick pop-out of the drawer.
[0008] As a further description of the above technical solution: the locking assembly also includes a guide rod, a slide groove, a push plate one, a push plate two, and a spring two. Two guide rods are fixedly connected to the rear end of the outer wall of the pull plate. A slide groove is provided inside the mounting box. A push plate one is fixedly connected to the end of the guide rod away from the pull plate. A push plate two is slidably installed inside the slide groove. The guide rod and the push plate one are slidably installed inside the slide groove. The push plate two is located at the rear end of the push plate one. A spring two is fixedly installed between the push plate two and the slide groove.
[0009] By adopting the above technical solution, the guide rod and slide guide the push plate to move smoothly. When unlocking, the spring pushes the push plate to pop out the drawer-type mounting plate, realizing the automatic pop-out of the drawer-type mounting plate and improving the convenience of operation.
[0010] As a further description of the above technical solution: the inner wall of the cabinet is provided with multiple guide grooves, and guide blocks are fixedly connected to both sides of the outer wall of the drawer-type mounting plate, with the guide blocks located inside the guide grooves at corresponding positions.
[0011] By adopting the above technical solution, the guide block and guide groove cooperate to ensure that the drawer-type mounting plate slides smoothly in the cabinet, avoiding shaking or jamming, and improving the stability of the drawer-type mounting plate.
[0012] As a further description of the above technical solution: a cooling fan is fixedly connected to the rear end of the cabinet, and multiple heat dissipation grooves are opened on both sides of the outer wall of the cabinet.
[0013] By adopting the above technical solution, the cooling fan forces airflow and the heat dissipation duct accelerates the discharge of hot air, together achieving heat dissipation inside the cabinet, preventing electrical equipment from being damaged by overheating, and extending the service life of the equipment.
[0014] As a further description of the above technical solution: a hinge is fixedly installed between the sealed door and the cabinet, and a handle is fixedly connected to the front end of the sealed door.
[0015] By adopting the above technical solution, the hinge enables the opening and closing of the sealed door, the handle facilitates the opening and closing operation, and the sealed door protects the internal equipment and prevents dust and foreign objects from entering when closed.
[0016] As a further description of the above technical solution: tempered glass is embedded inside the sealed door.
[0017] By adopting the above technical solution, tempered glass makes it easy to observe the operating status of the equipment inside the cabinet without having to open the door frequently, reducing dust entry and ensuring safety.
[0018] As a further description of the above technical solution: the bottom of the cabinet is fixedly connected with support legs, and there are multiple support legs distributed in a rectangular shape.
[0019] By adopting the above technical solution, the support legs improve the stability of the cabinet, prevent the cabinet from shaking due to uneven ground, and ensure the safe operation of the equipment.
[0020] By employing the above technical solution, this utility model of a multifunctional drawer-type low-voltage switchgear has at least the following beneficial effects:
[0021] Compared with existing technologies, this multifunctional drawer-type low-voltage switchgear, by setting up a drawer-type mounting plate and locking components, allows for the flexible placement of multiple electrical devices in use, enabling classified installation and centralized management of equipment. Furthermore, a spring pushes a locking block into a locking groove to lock the drawer, and after the locking block is moved to unlock, a spring drives a push plate to automatically pop out the drawer. This not only improves the utilization rate of cabinet space but also enables quick locking and tool-free disassembly of the drawer, significantly shortening equipment installation and maintenance time, reducing operational complexity, and avoiding equipment damage caused by frequent disassembly in traditional fixed structures.
[0022] Compared with existing technologies, this multi-functional drawer-type low-voltage switchgear, by setting up a cooling fan and a heat dissipation trough, effectively reduces the internal temperature of the cabinet by driving airflow when the cooling fan is running, and hot air is discharged from the heat dissipation trough, thus preventing the equipment from overheating and causing failure, and improving the safety and reliability of the low-voltage switchgear. Attached Figure Description
[0023] Figure 1 This is a first-view structural schematic diagram of the multifunctional drawer-type low-voltage switchgear proposed in this utility model.
[0024] Figure 2 This is a second-view structural schematic diagram of the multifunctional drawer-type low-voltage switchgear proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the internal structure of the multifunctional drawer-type low-voltage switchgear proposed in this utility model;
[0026] Figure 4 This is an exploded structural diagram of the locking component in the multifunctional drawer-type low-voltage switchgear proposed in this utility model.
[0027] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;
[0028] Figure 6 for Figure 4 Enlarged structural diagram at point B.
[0029] Legend:
[0030] 1. Cabinet body; 101. Guide groove; 2. Drawer mounting plate; 201. Guide block; 3. Pull-out plate; 4. Locking assembly; 401. Mounting box; 402. Lock block; 403. Lock groove; 404. Spring 1; 405. Toggle block; 406. Guide rod; 407. Slide rail; 408. Push plate 1; 409. Push plate 2; 410. Spring 2; 5. Cooling fan; 6. Cooling groove; 7. Sealed door; 701. Hinge; 702. Handle; 703. Tempered glass; 8. Support leg. Detailed Implementation
[0031] Reference Figure 1-6 The multifunctional drawer-type low-voltage switchgear provided by this utility model includes a cabinet body 1, which provides equipment installation space and supports the overall structure. Multiple drawer-type mounting plates 2 are movably installed inside the cabinet body 1 for installing electrical equipment. These plates can be pulled out to form drawers. A pull plate 3 is fixedly connected to the front end of each drawer-type mounting plate 2 for easy pulling. A locking assembly 4 is installed between the cabinet body 1 and the drawer-type mounting plates 2 to fix or eject the drawer-type mounting plates 2. A sealing door 7 is movably installed at the front end of the cabinet body 1 to protect the internal equipment and facilitate observation. The locking assembly 4 includes a mounting box 4. 01. Lock block 402, lock groove 403, spring 404, and lever 405. Multiple mounting boxes 401 are fixedly connected to the inner wall of the cabinet 1. Two lock blocks 402 are movably installed inside the pull plate 3 and are locked by engaging with the lock groove 403. The front end of the mounting box 401 has a lock groove 403. The lock block 402 is engaged in the lock groove 403 at the corresponding position. Spring 404 is fixedly installed between the lock block 402 and the pull plate 3 to provide the lock block 402 with a reset spring force. A lever 405 is fixedly connected to the end of the lock block 402 away from the lock groove 403 and is manually operated to unlock.
[0032] The locking assembly 4 also includes a guide rod 406, a slide 407, a push plate 408, a push plate 409, and a spring 410. Two guide rods 406 are fixedly connected to the rear end of the outer wall of the pull plate 3 to guide the push plate 408 to move. The slide 407 is provided inside the mounting box 401. The push plate 408 is fixedly connected to the end of the guide rod 406 away from the pull plate 3 to push the drawer-type mounting plate 2 out. The push plate 409 is slidably installed inside the slide 407. The guide rod 406 and the push plate 408 are slidably installed inside the slide 407. The push plate 409 is located at the rear end of the push plate 408. The spring 410 is fixedly installed between the push plate 409 and the slide 407 to provide the pop-out force.
[0033] The inner wall of the cabinet 1 is provided with multiple guide grooves 101. Guide blocks 201 are fixedly connected to both sides of the outer wall of the drawer-type mounting plate 2. They cooperate with the guide grooves 101 to ensure that the drawer-type mounting plate 2 slides smoothly. The guide blocks 201 are located inside the guide grooves 101 at the corresponding positions.
[0034] A cooling fan 5 is fixedly connected to the rear end of the cabinet 1 for active heat dissipation, and multiple heat dissipation slots 6 are opened on both sides of the outer wall of the cabinet 1 for auxiliary heat dissipation.
[0035] A hinge 701 is fixedly installed between the sealed door 7 and the cabinet 1 to enable the sealed door 7 to rotate and open. A handle 702 is fixedly connected to the front end of the sealed door 7 for easy opening and closing.
[0036] The interior of the sealed door 7 is fitted with tempered glass 703 for easy observation of the internal equipment.
[0037] The bottom of the cabinet 1 is fixedly connected to a support leg 8 to improve the stability of the cabinet 1. There are multiple support legs 8 arranged in a rectangular shape.
[0038] Working principle: When electrical equipment needs to be installed or repaired, pull the pull plate 3 to pull the drawer-type mounting plate 2 out of the cabinet 1, and the electrical equipment is installed on the drawer-type mounting plate 2. When the drawer-type mounting plate 2 is pushed in, the locking block 402 compresses the spring 404 under the pressure of the mounting box 401. When the locking block 402 is aligned with the locking groove 403, the spring 404 pushes the locking block 402 into the locking groove 403, completing the locking.
[0039] During maintenance, the toggle block 405 moves the lock block 402 out of the lock groove 403, and at the same time the spring 410 pushes the push plate 409 and the push plate 408, which automatically pops out the drawer-type mounting plate 2 through the guide rod 406, facilitating quick maintenance.
[0040] The cooling fan 5 starts periodically, working with the cooling duct 6 to expel heat from the cabinet 1, ensuring safe operation of the equipment. The sealed door 7 is closed by hinge 701, and the internal condition can be observed through tempered glass 703. The handle 702 facilitates opening and closing.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-functional drawer-type low-voltage switchgear, comprising a cabinet (1), characterized in that: The cabinet (1) is equipped with multiple drawer-type mounting plates (2) inside. The front end of the drawer-type mounting plate (2) is fixedly connected with a pull plate (3). A locking component (4) is installed between the cabinet (1) and the drawer-type mounting plate (2). A sealing door (7) is installed at the front end of the cabinet (1). The locking assembly (4) includes a mounting box (401), a locking block (402), a locking groove (403), a spring (404), and a lever (405). Multiple mounting boxes (401) are fixedly connected to the inner wall of the cabinet (1). Two locking blocks (402) are movably installed inside the pull plate (3). The front end of the mounting box (401) is provided with a locking groove (403). The locking block (402) is engaged in the corresponding position of the locking groove (403). The spring (404) is fixedly installed between the locking block (402) and the pull plate (3). The end of the locking block (402) away from the locking groove (403) is fixedly connected to a lever (405).
2. The multifunctional drawer-type low-voltage switchgear according to claim 1, characterized in that: The locking assembly (4) further includes a guide rod (406), a slide groove (407), a push plate one (408), a push plate two (409), and a spring two (410). Two guide rods (406) are fixedly connected to the rear end of the outer wall of the pull plate (3). The slide groove (407) is opened inside the mounting box (401). The push plate one (408) is fixedly connected to the end of the guide rod (406) away from the pull plate (3). The push plate two (409) is slidably installed inside the slide groove (407). The guide rod (406) and the push plate one (408) are slidably installed inside the slide groove (407). The push plate two (409) is located at the rear end of the push plate one (408). The spring two (410) is fixedly installed between the push plate two (409) and the slide groove (407).
3. The multifunctional drawer-type low-voltage switchgear according to claim 1, characterized in that: The inner wall of the cabinet (1) is provided with multiple guide grooves (101), and the outer walls of the drawer-type mounting plate (2) are fixedly connected with guide blocks (201), and the guide blocks (201) are located inside the guide grooves (101) at the corresponding positions.
4. The multifunctional drawer-type low-voltage switchgear according to claim 1, characterized in that: The rear end of the cabinet (1) is fixedly connected to a cooling fan (5), and multiple cooling slots (6) are provided on both sides of the outer wall of the cabinet (1).
5. The multifunctional drawer-type low-voltage switchgear according to claim 1, characterized in that: A hinge (701) is fixedly installed between the sealed door (7) and the cabinet (1), and a handle (702) is fixedly connected to the front end of the sealed door (7).
6. The multifunctional drawer-type low-voltage switchgear according to claim 1, characterized in that: The interior of the sealed door (7) is fitted with tempered glass (703).
7. The multifunctional drawer-type low-voltage switchgear according to claim 1, characterized in that: The bottom of the cabinet (1) is fixedly connected to a support leg (8), and there are multiple support legs (8) arranged in a rectangular shape.