Assembled low-voltage cabinet body

Abstract

The utility model relates to the technical field of split mounting type low-voltage cabinet bodies, and discloses a split mounting type low-voltage cabinet body which comprises a plurality of sliding rail assemblies assembled on the inner side of a frame, each sliding rail assembly comprises a main sliding rail, the inner side of each main sliding rail is rotatably connected with a limiting plate, a middle sliding rail is further slidably connected in each main sliding rail, and an inner sliding rail is arranged in each middle sliding rail. Balls are arranged on the top face and the bottom face of the inner sliding rail, the balls are in friction connection with the inner side of the middle sliding rail, the balls are further rotationally connected into a ball limiting plate, a sliding wheel is further arranged in the middle of the ball limiting plate, the sliding wheel is slidably connected to the bottom of a liquid outlet box, and the liquid outlet box is fixedly connected into the middle sliding rail. Through the arrangement of the sliding wheels, in the sliding process of the drawer, the sliding wheels can guide out lubricating liquid in the liquid outlet box, it is guaranteed that the balls are lubricated, the sliding stability of the drawer is guaranteed, and meanwhile the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of modular low-voltage cabinet technology, specifically a modular low-voltage cabinet. Background Technology

[0002] In power systems, low-voltage switchgear is an important device for power distribution, control, and protection. Modular low-voltage switchgear uses modular design to divide the cabinet into multiple independent functional modules, such as busbar compartment, electrical compartment, and cable entry / exit compartment. Each module can be customized and replaced according to actual needs, thereby improving the system's flexibility and adaptability. Existing modular low-voltage switchgear generally uses pull-out cabinets for each system to be tested. However, in long-term use, pull-out cabinets rely on slide rails to push the drawers in and out. Over time, the slide rails will wear down due to frequent operation, leading to problems with the drawers not being pushed in smoothly.

[0003] Therefore, we propose a modular low-voltage cabinet. Utility Model Content

[0004] The purpose of this utility model is to provide a modular low-pressure cabinet to solve the problem mentioned in the background art that, during long-term use, pull-out cabinets rely on slide rails to push in and pull out drawers, and the slide rails will wear out due to frequent operation, resulting in drawers not being pushed in smoothly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular low-pressure cabinet, including a rear panel, side panels on both sides of the rear panel, a frame on the inner side of the side panels, and multiple slide rail assemblies on the inner side of the frame. Each slide rail assembly includes a main slide rail, a limiting plate rotatably connected to the inner side of the main slide rail, a middle slide rail slidably connected inside the main slide rail, an inner slide rail inside the middle slide rail, ball bearings on both the top and bottom surfaces of the inner slide rail, a side of the inner slide rail fixedly connected to the outside of the drawer cabinet, ball bearings frictionally connected to the inner side of the middle slide rail, ball bearings rotatably connected to the inside of a ball bearing limiting plate, a sliding wheel in the middle of the ball bearing limiting plate, the sliding wheel slidably connected to the bottom of a liquid outlet tank, and the liquid outlet tank fixedly connected to the inside of the middle slide rail.

[0006] Preferably, a diamond-shaped groove is provided on the inner side of the middle sliding track, and the diamond-shaped groove is rotatably connected to the ball bearings.

[0007] Preferably, the liquid outlet tank has a liquid inlet at the top and a liquid outlet hole at the bottom. The liquid outlet hole has a sealing mechanism inside. The sealing mechanism includes a pipe, a steel ball inside the pipe, a spring above the steel ball, the spring tightly pressing a guide plate, and the guide plate is fixedly connected to the liquid inlet end of the pipe.

[0008] Preferably, the steel ball is rotatably connected to the sliding wheel, and the sliding wheel is rotatably connected to the middle of the ball limiting plate.

[0009] Preferably, the bottom of the middle sliding track is provided with a support block, which is slidably connected to the inside of the main sliding track.

[0010] Preferably, a limiting groove is provided on one side of the middle sliding track, and the limiting groove is slidably connected to a limiting plate.

[0011] Preferably, one end of the inner slide rail is provided with a locking rod, the locking rod is slidably connected to the middle slide rail, and the other end of the inner slide rail is provided with a positioning plate for preventing the balls from falling off.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model features multiple slide rail assemblies mounted inside the frame. Each slide rail assembly includes a main slide rail with a limiting plate rotatably connected to its inner side. A middle slide rail is slidably connected inside the main slide rail, and an inner slide rail is located inside the middle slide rail. Ball bearings are provided on both the top and bottom surfaces of the inner slide rail, and these ball bearings are frictionally connected to the inner side of the middle slide rail. The ball bearings are also rotatably connected inside a ball bearing limiting plate. A sliding wheel is located in the center of the ball bearing limiting plate and is slidably connected to the bottom of the liquid dispensing tank. The liquid dispensing tank is fixedly connected inside the middle slide rail. This design allows the sliding wheel to guide the lubricant from inside the liquid dispensing tank during drawer sliding, ensuring lubrication of the ball bearings, guaranteeing the smoothness of the drawer's movement, and extending its service life. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of the slide rail assembly of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the present invention from the perspective of overall disassembly and front view;

[0016] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0017] Figure 4 This is a side view of the overall structure of this utility model;

[0018] In the diagram: 1. Back panel; 2. Side panel; 3. Frame; 4. Slide rail assembly; 5. Main slide rail; 6. Limiting plate; 7. Middle slide rail; 8. Inner slide rail; 9. Ball bearing; 10. Drawer cabinet; 11. Ball bearing limiting plate; 12. Sliding wheel; 13. Liquid outlet tank; 14. Sealing mechanism; 701. Support block; 801. Locking rod; 802. Positioning plate; 1401. Pipe; 1402. Steel ball; 1403. Spring; 1404. Guide plate. Detailed Implementation

[0019] 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.

[0020] Example

[0021] Please see Figures 1-4 The diagram shows a modular low-pressure cabinet, including a back panel 1, side panels 2 on both sides of the back panel 1, a frame 3 inside the side panels 2, and multiple slide rail assemblies 4 inside the frame 3. Each slide rail assembly 4 includes a main slide rail 5, a limiting plate 6 rotatably connected to the inside of the main slide rail 5, a middle slide rail 7 slidably connected inside the main slide rail 5, an inner slide rail 8 inside the middle slide rail 7, ball bearings 9 on both the top and bottom surfaces of the inner slide rail 8, a drawer cabinet 10 fixedly connected to one side of the inner slide rail 8, a ball bearing 9 frictionally connected to the inside of the middle slide rail 7, a ball bearing 9 rotatably connected to the inside of a ball bearing limiting plate 11, a sliding wheel 12 in the middle of the ball bearing limiting plate 11, a sliding wheel 12 slidably connected to the bottom of a liquid outlet tank 13, and a liquid outlet tank 13 fixedly connected to the middle slide rail. Inside the drawer (section 7), this utility model has multiple slide rail assemblies mounted on the inner side of the frame. Each slide rail assembly includes a main slide rail, with a limiting plate rotatably connected to its inner side. A middle slide rail is slidably connected inside the main slide rail, and an inner slide rail is located inside the middle slide rail. Ball bearings are provided on both the top and bottom surfaces of the inner slide rail, and these ball bearings are frictionally connected to the inner side of the middle slide rail. The ball bearings are also rotatably connected inside a ball bearing limiting plate. A sliding wheel is located in the middle of the ball bearing limiting plate, and this sliding wheel is slidably connected to the bottom of the liquid dispensing tank. The liquid dispensing tank is fixedly connected inside the middle slide rail. This allows the sliding wheel to guide the lubricant from inside the liquid dispensing tank during drawer sliding, ensuring lubrication of the ball bearings, guaranteeing the smoothness of the drawer's sliding, and extending its service life.

[0022] Furthermore, a diamond-shaped groove is provided on the inner side of the middle slide rail 7. The diamond-shaped groove is rotatably connected to the ball bearing 9. The diamond-shaped groove on the inner side of the middle slide rail and its rotatable connection with the ball bearing provide multiple contact points for the ball bearing to rotate more stably, while ensuring smoother sliding of the drawer.

[0023] Furthermore, the liquid outlet tank 13 has a liquid inlet at the top and a liquid outlet hole at the bottom. A sealing mechanism 14 is installed inside the liquid outlet hole. The sealing mechanism 14 includes a pipe 1401, with a steel ball 1402 inside the pipe 1401. A spring 1403 is positioned above the steel ball 1402, and the spring 1403 tightly presses against a guide plate 1404. The guide plate 1404 is fixedly connected to the liquid inlet end of the pipe 1401. The liquid outlet tank is thus equipped with a liquid inlet and a liquid outlet hole, and the liquid outlet hole is also equipped with a sealing mechanism. The sealing mechanism includes a pipe, and the pipe is cleverly designed with… The system uses steel balls and springs. Under the tight compression of the springs, the guide plate is firmly fixed to the inlet end of the pipe, allowing the sealing mechanism to automatically close the outlet hole when not in use, preventing lubricant leakage. When the drawer slides, the sealing mechanism is under pressure, and the steel balls are pushed open, allowing the lubricant to flow out smoothly and coat the slide rail. Once the pressure is released, the spring immediately pushes the steel balls back to their original position, closing the outlet hole again to ensure a sealing effect. This achieves effective lubrication and sealing of the slide rail assembly, reduces friction, and improves the drawer's sliding efficiency and service life.

[0024] Furthermore, the steel ball 1402 is rotatably connected to the sliding wheel 12, and the sliding wheel 12 is rotatably connected to the middle of the ball bearing limiting plate 11. The steel ball and the sliding wheel are rotatably connected, and the sliding wheel is further rotatably connected to the middle ball bearing limiting plate. This allows the steel ball to roll flexibly with the rotation of the sliding wheel during the drawer's sliding process, resulting in more even application of the lubricant and thus improving the drawer's sliding efficiency and service life.

[0025] Furthermore, a support block 701 is provided at the bottom of the middle slide rail 7. The support block 701 is slidably connected to the inside of the main slide rail 5. The addition of the support block to the middle slide rail and its slidable connection with the inside of the main slide rail enhances the stability and load-bearing capacity of the middle slide rail. During the sliding of the drawer, the support block can effectively distribute the pressure borne by the middle slide rail, preventing it from deforming or being damaged due to uneven force.

[0026] Furthermore, a limiting groove is provided on one side of the middle sliding track 7, and the limiting groove is slidably connected to the limiting plate 6. The limiting groove and the limiting plate are slidably connected through the limiting groove of the middle sliding track. The opening of the limiting groove provides a stable sliding track for the middle sliding track, so that the limiting plate can slide smoothly in it. This can realize the quick separation of the middle sliding track from the main sliding track and improve the replacement efficiency.

[0027] Furthermore, one end of the inner slide rail 8 is equipped with a locking rod 801, which is slidably connected to the middle slide rail 7. The other end of the inner slide rail 8 is equipped with a positioning plate 802 for preventing the ball bearings 9 from falling off. By adding a locking rod to one end of the inner slide rail and a positioning plate to prevent the ball bearings from falling off at the other end, the locking rod and the middle slide rail are slidably connected. The locking rod allows the inner slide rail to be firmly locked onto the middle slide rail when needed, preventing the drawer from sliding out accidentally. At the same time, lubricant can flow along its grooves to ensure that the ball bearings at the bottom are lubricated. The positioning plate effectively prevents the ball bearings from falling off during the sliding of the inner slide rail, preventing the slide rail assembly from failing and affecting the normal use of the drawer.

[0028] In this solution, the workflow is as follows: First, the back panel 1 is connected to the frame 3, and then the side panels 2 are installed, thus forming a preliminary cabinet. Next, the drawer slide assembly 4 is installed inside the frame. The drawer slide assembly 4 includes a main drawer slide 5, and the inner side of the main drawer slide 5 is designed with a rotatable limiting plate 6 to limit the sliding range of the drawer. The main drawer slide 5 is slidably connected to the middle drawer slide 7, which can slide smoothly within the main drawer slide 5.

[0029] Furthermore, the middle slide rail 7 is equipped with an inner slide rail 8. Both the top and bottom surfaces of the inner slide rail 8 are fitted with ball bearings 9, which form a friction connection with the inner side of the middle slide rail 7, thereby reducing resistance during sliding. One side of the inner slide rail 8 is tightly connected to the outer side of the drawer cabinet 10, ensuring stable sliding of the drawer.

[0030] The ball bearing 9 is not only frictionally connected to the inner side of the central sliding track 7, but also rotatably connected through the ball bearing limiting plate 11, increasing the stability of rolling. A sliding wheel 12 is also installed in the middle of the ball bearing limiting plate 11, and the sliding wheel 12 is slidably connected to the bottom of the liquid outlet tank 13. The liquid outlet tank 13 is then securely installed inside the central sliding track 7.

[0031] In the design of the middle slide rail 7, a diamond-shaped groove is specially opened on the inner side. The diamond-shaped groove is connected to the ball bearing 9 for rotation, providing a smoother track for the drawer to slide.

[0032] The liquid outlet tank 13 has a filling port at the top for easy addition of lubricant. The bottom has an outlet hole equipped with a sealing mechanism 14 to ensure a stable supply of lubricant and prevent leakage. The sealing mechanism 14 includes a pipe 1401 containing steel balls 1402 and a spring 1403, which work in close contact with a guide plate 1404 to maintain the seal of the outlet hole.

[0033] The steel ball 1402 is also rotatably connected to the sliding wheel 12, which is connected to the middle of the ball limiting plate 11. This design makes the entire sliding system more flexible and stable.

[0034] Meanwhile, a limiting groove is also provided on one side of the middle slide rail 7. The limiting groove is slidably connected with the limiting plate 6, providing additional limiting and protection for the sliding of the drawer.

[0035] A locking lever 801 is installed at one end of the inner slide rail 8, which is slidably connected to the middle slide rail 7 to lock the drawer position when needed. The other end of the inner slide rail 8 is equipped with a positioning plate 802, which effectively prevents the ball bearings 9 from falling off during sliding.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular low-voltage cabinet, characterized in that: Includes a back panel (1), with side panels (2) on both sides of the back panel (1), a frame (3) on the inner side of the side panel (2), and multiple slide rail assemblies (4) on the inner side of the frame (3). The slide rail assembly (4) includes a main slide rail (5), a limiting plate (6) rotatably connected to the inner side of the main slide rail (5), a middle slide rail (7) slidably connected inside the main slide rail (5), an inner slide rail (8) inside the middle slide rail (7), ball bearings (9) on the top and bottom surfaces of the inner slide rail (8), a drawer cabinet (10) fixedly connected to one side of the inner slide rail (8), a ball bearing (9) rubbingly connected to the inner side of the middle slide rail (7), a ball bearing (9) rotatably connected to the inside of the ball bearing limiting plate (11), a sliding wheel (12) in the middle of the ball bearing limiting plate (11), a sliding wheel (12) slidably connected to the bottom of the liquid outlet tank (13), and the liquid outlet tank (13) fixedly connected to the inside of the middle slide rail (7).

2. The modular low-voltage cabinet according to claim 1, characterized in that: A diamond-shaped groove is provided on the inner side of the middle sliding track (7), and the diamond-shaped groove is rotatably connected to the ball bearing (9).

3. The modular low-voltage cabinet according to claim 1, characterized in that: The liquid outlet tank (13) is provided with a liquid inlet at the top and a liquid outlet hole at the bottom. A sealing mechanism (14) is provided inside the liquid outlet hole. The sealing mechanism (14) includes a pipe (1401). A steel ball (1402) is provided inside the pipe (1401). A spring (1403) is provided above the steel ball (1402). The spring (1403) tightly presses against the guide plate (1404). The guide plate (1404) is fixedly connected to the liquid inlet end of the pipe (1401).

4. The modular low-voltage cabinet according to claim 3, characterized in that: The steel ball (1402) is rotatably connected to the sliding wheel (12), and the sliding wheel (12) is rotatably connected to the middle of the ball limiting plate (11).

5. The modular low-voltage cabinet according to claim 1, characterized in that: The bottom of the middle sliding track (7) is provided with a support block (701), which is slidably connected to the inside of the main sliding track (5).

6. A modular low-voltage cabinet according to claim 5, characterized in that: A limiting groove is provided on one side of the sliding track (7), and the limiting groove is slidably connected to the limiting plate (6).

7. The modular low-voltage cabinet according to claim 1, characterized in that: The inner slide rail (8) is provided with a locking rod (801) at one end, which is slidably connected to the middle slide rail (7). The inner slide rail (8) is provided with a positioning plate (802) at the other end to prevent the ball (9) from falling off.

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