Low-voltage power cabinet convenient to overhaul

Abstract

The utility model relates to the technical field of low-voltage power cabinets, in particular to a low-voltage power cabinet convenient to overhaul, which comprises a cabinet body, a plurality of supporting plates are arranged on the left side and the right side of the inner wall of the cabinet body, the two supporting plates which are oppositely arranged left and right jointly support a machine box, and a positioning assembly is arranged at the bottom of the machine box and comprises two rectangular transverse pipes. Two rectangular movable rods are slidably connected into each rectangular transverse pipe, and rectangular inserting grooves allowing the outer ends of the rectangular movable rods to be inserted are formed in the positions, close to the front end and the rear end, of the opposite side faces of the two supporting plates which are oppositely arranged left and right. According to the low-voltage power cabinet convenient to overhaul, a traditional motor driving structure is replaced by mechanical linkage of the spring and the pulling rod, complex linkage parts such as a motor, a gear and a rotating rod are thoroughly removed, a driving mechanism for movement of the machine box is simplified, and the fault risk caused by the complex mechanical structure is remarkably reduced.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage power cabinet technology, specifically a low-voltage power cabinet that is easy to maintain. Background Technology

[0002] Low-voltage power distribution cabinets are crucial equipment in low-voltage power distribution systems, primarily responsible for distributing electrical energy from the power source to various electrical devices. They are commonly used in industrial, commercial, and residential buildings to ensure the safety and reliability of power supply. A typical low-voltage power distribution cabinet consists of a housing, power distribution components, protection devices, measuring instruments, and a control system, providing functions such as overload protection, short-circuit protection, leakage protection, and voltage monitoring. Through proper design and layout, low-voltage power distribution cabinets can not only effectively manage electrical loads but also simplify inspection and maintenance, improving equipment safety and efficiency.

[0003] Patent CN222601790U discloses a low-voltage power cabinet that is easy to maintain, including a chassis. A hinge is fixedly connected to the outer wall of the chassis, and an access door is fixedly connected to one side of the hinge. A handle is fixedly connected to one side of the access door. A mounting frame is fixedly connected inside the chassis, and a motor is fixedly connected to the outer wall of the mounting frame. A second rotating rod is fixedly connected to the output end of the motor. A moving rod is rotatably connected to one side of the second rotating rod, and a second fixed rod is rotatably connected to one side of the moving rod. The second fixed rod is rotatably connected to the outer wall of the mounting frame. A second gear is fixedly connected to the top of the moving rod, and a first gear is rotatably connected to the top of the moving rod. In this invention, the sliding block and slide rail can drive the cabinet to move back and forth, allowing different layers of cabinets to be pushed out, solving the problem of not being able to quickly and conveniently maintain the cabinet and improving work efficiency.

[0004] While existing technologies, through the design of sliders and rails, enable the reciprocating movement of the housing and the ejection of housings of different layers, thus solving the problem of slow and convenient maintenance and improving work efficiency, the existing structure suffers from complexity. This complexity stems primarily from the intricate mechanism driving the slider's movement on the rails, involving multiple interconnected components such as a motor, a second rotating rod, a moving rod, a second gear, a first gear, and a first rotating rod. This complex design not only increases the likelihood of malfunctions, especially in the event of a motor failure which could prevent the housing from being properly ejected, but also occupies limited space within the housing. Therefore, we propose a low-voltage power cabinet designed for easier maintenance, aiming to simplify the connection structure for the housing's forward and backward movement, reduce the risk of failure, and improve maintenance efficiency and space utilization. Utility Model Content

[0005] The purpose of this invention is to provide a low-voltage power cabinet that is easy to maintain, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A low-voltage power cabinet that is easy to maintain includes a cabinet body, which serves as the main frame of the equipment, providing installation space and protection for internal components. Figure 1 , Figure 2 and Figure 4 As shown, the cabinet's inner wall has multiple support plates arranged at equal intervals on both the left and right sides. The support plates are used to support the cabinet in layers, achieving a modular layout. Two support plates arranged opposite each other on the left and right sides jointly support the cabinet. The cabinet is used to house power distribution components or protection devices. As a detachable functional module, the bottom of the cabinet is equipped with a positioning component. The positioning component is used to quickly lock or unlock the cabinet, simplifying the disassembly and assembly process.

[0008] The positioning component includes two rectangular horizontal tubes arranged symmetrically front to back to guide the movement of rectangular movable rods. Two rectangular movable rods arranged symmetrically left to right are slidably connected inside each of the two rectangular horizontal tubes. The rectangular movable rods are fixed to the housing by inserting into rectangular slots and can be locked or released by sliding. Rectangular slots are provided on the opposite sides of the two support plates arranged left to right and near the front and rear ends for the outer ends of the rectangular movable rods to be inserted. The rectangular slots are used to cooperate with the rectangular movable rods to form a fixed position for the housing.

[0009] A spring is provided between the two rectangular movable rods inside the rectangular horizontal tube. The spring is used to provide elastic restoring force to keep the rectangular movable rods in the locked state of being inserted into the rectangular slot. A pull rod is provided between the two rectangular movable rods arranged in opposite directions. The pull rod is used to manually operate to drive the rectangular movable rods to slide and release the locking of the housing. A rectangular through slot is opened in the middle of the opposite side of the two rectangular horizontal tubes for the pull rod to pass through. The rectangular through slot provides a moving channel for the pull rod to ensure smooth operation.

[0010] Preferred, such as Figure 2 As shown, the top of the two support plates arranged opposite each other on the left and right is provided with a limiting side plate. The left and right sides of the box are respectively attached to the opposite sides of the two limiting side plates to further ensure the installation stability of the box.

[0011] Preferred, such as Figure 4 As shown, the top of each of the two rectangular horizontal tubes on opposite sides is provided with two first mounting seats arranged symmetrically from left to right. The first mounting seats are installed on the bottom of the housing by bolts to ensure reliable assembly of the positioning component and the housing.

[0012] A connecting rod is provided between the two rectangular horizontal tubes and near the left and right ends. The connecting rod is used to enhance the structural strength between the two rectangular horizontal tubes.

[0013] The connecting rod is provided with a second mounting seat on the side away from the pull rod and at both the front and rear ends. The second mounting seat is installed on the side of the rectangular horizontal tube by bolts, which improves the overall stability of the positioning assembly and ensures that the pull rod will not separate from the rectangular movable rod.

[0014] The two rectangular movable rods arranged opposite each other have circular grooves on their opposite sides. The end of the spring is located in the circular groove. The circular groove is used to accommodate the end of the spring, limit the compression direction of the spring and prevent it from coming out.

[0015] Preferred, such as Figure 5 As shown, rectangular connecting blocks are provided at both the front and rear ends of the lever. The rectangular connecting blocks are used to transmit the thrust of the lever to the rectangular movable rod. The rectangular movable rod has a rectangular connecting groove on its side for the rectangular connecting blocks to be inserted. The rectangular connecting groove cooperates with the rectangular connecting blocks to realize the linkage between the lever and the rectangular movable rod, which facilitates the assembly of the rectangular horizontal tube, the rectangular movable rod, the lever and the spring.

[0016] Preferred, combined Figure 2 and Figure 4 As shown, the distance 'a' between the two levers and the depth 'b' of the rectangular slot are related by 'a' being greater than 'b' + 'b'. This dimensional relationship ensures that when the two levers are brought together, the outer end of the rectangular movable lever can completely disengage from the rectangular slot, enabling rapid release of the housing.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This easy-to-maintain low-voltage power cabinet replaces the traditional motor drive structure with the mechanical linkage of springs and levers, completely eliminating complex linkage components such as motors, gears, and rotating rods, simplifying the drive mechanism for the movement of the housing, and significantly reducing the risk of failure caused by complex mechanical structure.

[0019] 2. This easy-to-maintain low-voltage power cabinet adopts a modular layout design with layered support plates and limiting side plates, which allows the cabinet to be disassembled independently without interference, optimizes the utilization of the internal space of the cabinet, and facilitates quick location and replacement of faulty units, greatly improving maintenance efficiency.

[0020] 3. This easy-to-maintain low-voltage power cabinet automatically maintains a locked state using the elastic restoring force of a spring. By manually operating a lever, the rectangular movable rod is driven to disengage from the rectangular slot, completely avoiding the defect of traditional technology where the cabinet cannot be removed when the motor fails. This ensures that the lock can be quickly released in an emergency, improving the reliability of equipment maintenance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the assembly structure of the housing and positioning components in this utility model;

[0024] Figure 4 This is a schematic diagram of the positioning component structure in this utility model;

[0025] Figure 5 This is a schematic diagram of the assembly structure of the rectangular movable rod, spring, and pull rod in this utility model;

[0026] In the diagram: 100, cabinet; 200, support plate; 210, rectangular slot; 220, limiting side plate; 300, chassis; 400, positioning assembly; 410, rectangular horizontal tube; 411, rectangular through slot; 412, first mounting base; 420, rectangular movable rod; 421, circular slot; 422, rectangular mating slot; 430, spring; 440, pull rod; 441, rectangular mating block; 450, connecting rod; 451, second mounting base. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Please see Figures 1-5 This utility model provides a technical solution:

[0030] A low-voltage power cabinet that is easy to maintain includes a cabinet 100. The cabinet 100 is a low-voltage power cabinet that serves as the main frame of the equipment, providing installation space and protection for internal components. Figure 1 , Figure 2 and Figure 4As shown, the cabinet 100 has multiple support plates 200 arranged at equal intervals on both the left and right sides of its inner wall. The support plates 200 are used to support the box 300 in layers to achieve a modular layout. The two support plates 200 arranged opposite each other on the left and right sides jointly support the box 300. The box 300 is used to house power distribution components or protection devices. As a detachable functional module, the bottom of the box 300 is provided with a positioning component 400. The positioning component 400 is used to quickly lock or unlock the box 300, simplifying the disassembly and assembly process.

[0031] The positioning component 400 includes two rectangular horizontal tubes 410 arranged symmetrically front to back for guiding the movement of the rectangular movable rods 420. Two rectangular movable rods 420 arranged symmetrically left to right are slidably connected inside each of the two rectangular horizontal tubes 410. The rectangular movable rods 420 fix the housing 300 by inserting into the rectangular slots 210 and can be locked or released by sliding. The two support plates 200 arranged on the opposite sides and near the front and rear ends are provided with rectangular slots 210 for the outer ends of the rectangular movable rods 420 to be inserted. The rectangular slots 210 are used to cooperate with the rectangular movable rods 420 to form a fixed position for the housing 300.

[0032] A spring 430 is provided between the two rectangular movable rods 420 inside the rectangular horizontal tube 410. The spring 430 is used to provide elastic restoring force to keep the rectangular movable rods 420 locked in the rectangular slot 210. A pull rod 440 is provided between the two rectangular movable rods 420 arranged in opposite directions. The pull rod 440 is used for manual operation to drive the rectangular movable rods 420 to slide and release the locking of the housing 300. A rectangular through groove 411 is opened in the middle of the opposite side of the two rectangular horizontal tubes 410 for the pull rod 440 to pass through. The rectangular through groove 411 provides a moving channel for the pull rod 440 to ensure smooth operation.

[0033] In this embodiment, as Figure 2 As shown, the top of the two support plates 200 arranged opposite each other is provided with a limiting side plate 220. The left and right sides of the box 300 are respectively attached to the opposite sides of the two limiting side plates 220 to further ensure the installation stability of the box 300.

[0034] Specifically, such as Figure 4 As shown, the top of the opposite sides of the two rectangular horizontal tubes 410 are provided with two first mounting seats 412 arranged symmetrically from left to right. The first mounting seats 412 are installed on the bottom of the housing 300 by bolts to ensure reliable assembly of the positioning component 400 and the housing 300.

[0035] A connecting rod 450 is provided between the two rectangular horizontal tubes 410 and near the left and right ends. The connecting rod 450 is used to enhance the structural strength between the two rectangular horizontal tubes 410.

[0036] The connecting rod 450 is provided with a second mounting seat 451 on the side away from the pull rod 440 and at both the front and rear ends. The second mounting seat 451 is installed on the side of the rectangular horizontal tube 410 by bolts, which improves the overall stability of the positioning assembly 400 and ensures that the pull rod 440 will not separate from the rectangular movable rod 420.

[0037] The two rectangular movable rods 420 arranged opposite each other have circular grooves 421 on their opposite sides. The end of the spring 430 is located in the circular groove 421. The circular groove 421 is used to accommodate the end of the spring 430, limit the compression direction of the spring 430 and prevent it from coming out.

[0038] Furthermore, such as Figure 5 As shown, rectangular connecting blocks 441 are provided at both the front and rear ends of the lever 440. The rectangular connecting blocks 441 are used to transmit the thrust of the lever 440 to the rectangular movable rod 420. The side of the rectangular movable rod 420 is provided with a rectangular connecting groove 422 for the rectangular connecting blocks 441 to be inserted. The rectangular connecting groove 422 cooperates with the rectangular connecting blocks 441 to realize the linkage between the lever 440 and the rectangular movable rod 420, which facilitates the assembly of the rectangular horizontal tube 410, the rectangular movable rod 420, the lever 440 and the spring 430.

[0039] Furthermore, in combination Figure 2 and Figure 4 As shown, the distance a between the two levers 440 and the depth b of the rectangular slot 210 are related by a being greater than b + b. This dimensional relationship ensures that when the two levers 440 are brought together, the outer end of the rectangular movable lever 420 can be completely disengaged from the rectangular slot 210, thus enabling the rapid release of the housing 300.

[0040] In this embodiment, the low-voltage power cabinet, which is easy to maintain, is used by first bringing the two levers 440 together so that the rectangular movable rod 420 is fully moved into the rectangular horizontal tube 410. Then, the housing 300 is placed on top of the two support plates 200 arranged opposite each other inside the cabinet 100. The two levers 440 are then released. Under the elastic restoring force of the spring 430, the outer end of the rectangular movable rod 420 inside the rectangular horizontal tube 410 automatically inserts into the rectangular slot 210 on the side of the support plate 200, locking the housing 300. At this time, the left and right sides of the housing 300 are in contact with the limiting side plate 220 on the top of the support plate 200. When maintenance or replacement of the housing 300 is required, the operator manually presses the two levers 440 towards the center, and the levers 440 pass through their front... The rectangular mating blocks 441 at both ends engage with the rectangular mating grooves 422 on the side of the rectangular movable rod 420, driving the two rectangular movable rods 420 to slide inward along the rectangular horizontal tube 410. At the same time, the spring 430 is compressed into the circular groove 421 until the outer end of the rectangular movable rod 420 is completely disengaged from the rectangular slot 210. At this time, the housing 300 is unlocked and can be pulled out along the direction of the support plate 200. After maintenance, the housing 300 is pushed back into the space between the limiting side plates 220. The spring 430 pushes the rectangular movable rod 420 to reset and re-insert it into the rectangular slot 210, realizing the automatic locking of the housing 300. Through the above steps, the mechanical linkage of the positioning component 400 and the elastic reset function of the spring 430 are used to realize the quick disassembly and assembly of the housing 300.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-voltage power switch that is easy to maintain, comprising a cabinet (100), characterized in that: The cabinet (100) has multiple support plates (200) arranged equidistantly on both the left and right sides of its inner wall. Two support plates (200) arranged opposite each other on the left and right sides jointly support the box (300). The bottom of the box (300) is provided with a positioning component (400). The positioning component (400) includes two rectangular horizontal tubes (410) arranged symmetrically front to back. Two rectangular movable rods (420) arranged symmetrically on the left and right sides are slidably connected inside each of the two rectangular horizontal tubes (410). On the opposite sides of the two support plates (200) and near the front and rear ends, there are rectangular slots (210) for inserting the outer ends of the rectangular movable rods (420). A spring (430) is provided between the two rectangular movable rods (420) inside the rectangular horizontal tube (410). A pull rod (440) is provided between the two rectangular movable rods (420) arranged opposite each other. A rectangular through groove (411) for the pull rod (440) to pass through is provided in the middle of the opposite sides of the two rectangular horizontal tubes (410).

2. The low-voltage power cabinet that is easy to maintain according to claim 1, characterized in that: The top of each of the two support plates (200) arranged opposite to each other is provided with a limiting side plate (220), and the left and right sides of the housing (300) are respectively attached to the opposite sides of the two limiting side plates (220).

3. The low-voltage power cabinet that is easy to maintain according to claim 1, characterized in that: The top of each of the two rectangular horizontal tubes (410) on opposite sides is provided with two first mounting seats (412) arranged symmetrically on the left and right sides. The first mounting seats (412) are installed on the bottom of the housing (300) by bolts.

4. The low-voltage power cabinet that is easy to maintain according to claim 1, characterized in that: A connecting rod (450) is provided between the two rectangular horizontal tubes (410) and near the left and right ends.

5. The low-voltage power cabinet for easy maintenance according to claim 4, characterized in that: The connecting rod (450) is provided with a second mounting seat (451) on the side away from the pull rod (440) and at both the front and rear ends. The second mounting seat (451) is installed on the side of the rectangular horizontal tube (410) by bolts.

6. The low-voltage power cabinet that is easy to maintain according to claim 1, characterized in that: The two rectangular movable rods (420) arranged opposite each other on the left and right sides are provided with circular grooves (421), and the end of the spring (430) is located in the circular groove (421).

7. The low-voltage power cabinet that is easy to maintain according to claim 1, characterized in that: The front and rear ends of the lever (440) are provided with rectangular connecting blocks (441), and the side of the rectangular movable rod (420) is provided with a rectangular connecting groove (422) for the rectangular connecting blocks (441) to be inserted.

8. The low-voltage power switchgear for easy maintenance according to claim 1, characterized in that: The distance a between the two levers (440) and the depth b of the rectangular slot (210) are related by a being greater than b + b.

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