Low-voltage draw-out type switch cabinet
By introducing a phased limit and air-blowing heat dissipation structure into the low-voltage withdrawable switch cabinet, the problem of insufficient limit in traditional low-voltage drawer cabinets is solved, enabling stable installation of drawers and rapid maintenance of components.
Patent Information
- Application Number
- CN202520149168.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Traditional low-pressure drawer cabinets lack phased limit functions, causing drawers to wobble during installation or maintenance, affecting component maintenance and installation, and failing to meet customer needs.
The system employs a combination structure of cabinet, back panel, concave panel, drawer box, positioning box, sliding plate, curved plate, spring and curved groove to achieve phased limiting of the drawer box, and uses air nozzles, fans, exhaust pipes and ducts for air cooling, combined with support components and rubber pads for support and level adjustment.
It achieves phased limiting of drawer boxes and air cooling, meeting customer needs and ensuring drawer stability and rapid installation and maintenance of components.
Smart Images

Figure CN223898859U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage withdrawable switchgear technology, and in particular to a low-voltage withdrawable switchgear. Background Technology
[0002] Low-voltage switchgear is a type of low-voltage switchgear, suitable for industries such as power plants, petroleum, chemical, metallurgy, textile, and high-rise buildings, for power transmission, distribution, and energy conversion. Low-voltage switchgear has the advantages of high strength, good pre-processing properties, and flexible and convenient installation.
[0003] Traditional low-pressure drawer cabinets can only be limited to a single stop during use. This single-stop method makes it impossible to limit the drawer in stages according to the installation or maintenance needs when installing or repairing the components inside the drawer. This can easily cause the drawer to shake or even retract into the cabinet, greatly affecting the maintenance and installation of the components inside the drawer and thus failing to meet the user's needs.
[0004] Therefore, those skilled in the art have provided a low-voltage withdrawable switchgear to solve the problems mentioned in the background art. Utility Model Content
[0005] To address the issue of lacking a phased limit function, this utility model provides a low-voltage withdrawable switch cabinet.
[0006] This utility model provides a low-voltage withdrawable switchgear, which adopts the following technical solution:
[0007] A low-voltage withdrawable switch cabinet includes a cabinet body. A back panel is fixedly connected between the top and bottom of the cabinet body. A concave plate is evenly fixedly connected to the left side of the back panel. A drawer box is slidably connected to the bottom of the concave plate's inner cavity. The left end of the drawer box penetrates the cabinet body and is fixedly connected to a drawer panel. A positioning box is embedded in the left side of the bottom of the concave plate's inner cavity. A sliding plate is slidably connected to the inner cavity of the positioning box. An arc-shaped plate is fixedly connected to the top of the sliding plate. Springs are fixedly connected to the left and right sides of the bottom of the sliding plate. The bottom of the springs is connected to the positioning box. The drawer box is fixedly connected at the bottom. The bottom of the drawer box is evenly provided with arc-shaped grooves that cooperate with the arc-shaped plate. The outer surface of the arc-shaped plate is in close contact with the inner surface of the arc-shaped groove. An air vent nozzle that cooperates with the drawer box is embedded in the top of the concave plate cavity. A fan is fixedly installed on the right side of the top of the cabinet. The bottom of the fan is connected to an exhaust pipe. The bottom of the exhaust pipe extends to the bottom of the cabinet cavity. The top of the air vent nozzle is connected to a conduit. One end of the conduit passes through the back panel and is connected to the exhaust pipe. Support components are provided at the four corners of the bottom of the cabinet.
[0008] By adopting the above technical solution, the cabinet body, back panel, concave panel, drawer box, drawer front panel, positioning box, sliding plate, curved plate, spring and curved groove can be set to limit the drawer box in stages. By setting air nozzles, fans, exhaust pipes and ducts, the parts in the inner cavity of the cabinet can be cooled by blowing air. By setting support components, the device can be supported and its horizontal state can be adjusted.
[0009] Optionally, the support assembly includes a stud, the top of which is fixedly connected to the connection of the cabinet, and a support protrusion is threaded onto the outer surface of the stud.
[0010] By adopting the above technical solution, the studs and supporting protrusions can support the cabinet and adjust its horizontal state.
[0011] Optionally, a rubber pad is fixedly connected to the bottom of the supporting protrusion, and the rubber pad is circular.
[0012] By adopting the above technical solution, the rubber pad can protect the bottom of the supporting convex cylinder.
[0013] Optionally, an air inlet pipe is connected to the left side of the fan, and a filter cover is threaded to the left end of the air inlet pipe.
[0014] By adopting the above technical solution, the design of the air intake pipe and filter cover facilitates the filtration and intake of air for the fan.
[0015] Optionally, a limiting plate is fixedly connected to the right side of the bottom of the drawer box, and a limiting groove is provided at the bottom of the inner cavity of the concave plate to cooperate with the limiting plate. The outer surface of the limiting plate is slidably connected to the inner surface of the limiting groove.
[0016] By adopting the above technical solution, the setting of the limiting plate and the limiting groove can guide and limit the drawer box.
[0017] Optionally, slide rails are fixedly connected to the front and rear positions of the bottom of the concave plate cavity and to the outside of the positioning box, and the outer surface of the slide rails is slidably connected to the inner surface of the drawer box.
[0018] By adopting the above technical solution, the slide rails can provide guidance and support for the drawer box.
[0019] Optionally, the front and back of the cabinet are both embedded with a filter screen, which is rectangular.
[0020] By adopting the above technical solution, the filter screen facilitates air circulation within the cabinet's interior.
[0021] In summary, this utility model has the following beneficial effects:
[0022] 1. This utility model, by setting up a cabinet body, back panel, concave plate, drawer box, drawer front panel, positioning box, sliding plate, arc plate, spring and arc groove, can limit the drawer box in stages. By setting up an air nozzle, fan, exhaust pipe and duct, it can blow air to dissipate heat from the parts in the cabinet cavity. By setting up a support component, it can support the device and adjust its horizontal state. By setting up the above structure, it can be used for staged limiting, thereby meeting the user needs.
[0023] 2. This utility model supports the cabinet body and adjusts its level by setting studs and supporting protrusions. The rubber pads protect the bottom of the supporting protrusions. The air inlet pipe and filter cover facilitate the filtering and intake of air by the fan. The limiting plate and limiting groove guide and limit the drawer box. The slide rails guide and support the drawer box. The filter screen facilitates air circulation in the cabinet cavity. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a sectional view of the cabinet structure of this utility model;
[0026] Figure 3 This utility model Figure 2 Enlarged view of section A of the structure;
[0027] Figure 4 This is a perspective view showing the connection between the skateboard and the curved plate structure of this utility model.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1. Cabinet body; 2. Back panel; 3. Concave panel; 4. Drawer box; 5. Drawer front panel; 6. Positioning box; 7. Slide plate; 8. Curved panel; 9. Spring; 10. Curved groove; 11. Air nozzle; 12. Fan; 13. Exhaust pipe; 14. Duct; 15. Support assembly; 151. Stud; 152. Support protrusion; 16. Air inlet pipe; 17. Limiting plate; 18. Limiting groove; 19. Slide rail; 20. Filter screen. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0031] Example 1:
[0032] Please refer to Figure 1-4A low-voltage withdrawable switch cabinet includes a cabinet body 1. A back plate 2 is fixedly connected between the top and bottom of the inner cavity of the cabinet body 1. A concave plate 3 is uniformly fixedly connected to the left side of the back plate 2. A drawer box 4 is slidably connected to the bottom of the inner cavity of the concave plate 3. The left end of the drawer box 4 penetrates the cabinet body 1 and is fixedly connected to a drawer panel 5. A positioning box 6 is embedded in the left side of the bottom of the inner cavity of the concave plate 3. The left and right sides of the inner cavity of the positioning box 6 are provided with slide rails that cooperate with the slide plate 7. The slide rails can guide and limit the slide plate 7. The inner cavity of the positioning box 6 is slidably connected to the slide plate 7. An arc plate 8 is fixedly connected to the top of the slide plate 7. Springs 9 are fixedly connected to the left and right sides of the bottom of the slide plate 7. The bottom of the springs 9 is fixedly connected to the connection of the positioning box 6. The bottom of the drawer box 4 is uniformly provided with arc grooves 10 that cooperate with the arc plate 8. The outer surface of the arc plate 8 is tightly fitted with the inner surface of the arc groove 10. A drawer box 4 is embedded in the top of the inner cavity of the concave plate 3. The air outlet nozzle 11 is used. A fan 12 is fixedly installed on the right side of the top of the cabinet 1. The bottom of the fan 12 is connected to an exhaust pipe 13, which extends to the bottom of the inner cavity of the cabinet 1. The top of the air outlet nozzle 11 is connected to a conduit 14, one end of which passes through the back panel 2 and connects to the exhaust pipe 13. Support components 15 are provided at the four corners of the bottom of the cabinet 1. An air inlet pipe 16 is connected to the left side of the fan 12, and a filter cover is threaded to the left end of the air inlet pipe 16. Drawer box A limiting plate 17 is fixedly connected to the right side of the bottom of the 4. A limiting groove 18 is provided at the bottom of the inner cavity of the concave plate 3 to cooperate with the limiting plate 17. The outer surface of the limiting plate 17 is slidably connected to the inner surface of the limiting groove 18. Slide rails 19 are fixedly connected to the front and rear positions of the bottom of the inner cavity of the concave plate 3 and to the outside of the positioning box 6. The outer surface of the slide rails 19 is slidably connected to the inner surface of the drawer box 4. Filter screens 20 are embedded in the front and back of the cabinet 1. The filter screens 20 are rectangular.
[0033] In this embodiment: By setting up a cabinet body 1, a back panel 2, a concave plate 3, a drawer box 4, a drawer front panel 5, a positioning box 6, a sliding plate 7, an arc plate 8, a spring 9, and an arc groove 10, the present invention can perform phased limiting of the drawer box 4. By setting up an air outlet nozzle 11, a fan 12, an exhaust pipe 13, and a duct 14, it can blow air to dissipate heat from the parts inside the cabinet body 1. By setting up the above structure, it can achieve phased limiting use, thereby meeting the user needs of customers.
[0034] Example 2:
[0035] Reference Figure 1 and Figure 2 The support component 15 includes a stud 151, the top of which is fixedly connected to the connection of the cabinet 1. A support protrusion 152 is threadedly connected to the outer surface of the stud 151, and a rubber pad is fixedly connected to the bottom of the support protrusion 152. The rubber pad is circular.
[0036] In this embodiment: By setting studs 151 and supporting protrusions 152, the present invention can support the device and adjust its horizontal state.
[0037] The implementation principle of this utility model is as follows: When in use, the staff moves the device to the designated position. Then, according to the unevenness of the ground, the staff rotates and moves the support protrusions 152 in sequence, so that the support protrusions 152 drive the rubber pad to move downward and contact the ground. Thus, the cooperation of the four support protrusions 152 and the rubber pad supports the device and adjusts its horizontal state.
[0038] Next, when it is necessary to install components inside the drawer box 4, the worker pulls the drawer panel 5 horizontally in sequence, causing the drawer panel 5 to slide the drawer box 4 on the outer surface of the slide rail 19. Simultaneously, the drawer box 4 moves the curved groove 10, which in turn presses against the curved plate 8, causing the curved plate 8 to slide downwards along the slide plate 7, compressing the spring 9. This allows the curved plate 8 to enter the inner cavity of the positioning box 6, making it easier for the worker to pull the drawer box 4 out of the cabinet 1. When the drawer panel 5 moves the drawer box 4 to the appropriate position... The drawer box 4 drives the corresponding arc groove 10 to align with the arc plate 8. At the same time, the spring 9 pushes the slide plate 7 upward under the reaction force, so that the slide plate 7 drives the arc plate 8 upward to insert into the inner cavity of the arc groove 10, thereby completing the stage limit of the drawer box 4 and preventing the drawer box 4 from shaking. After the installation is completed, the staff pushes the drawer panel 5 in the opposite direction, so that the drawer panel 5 drives the drawer box 4 to slide in the opposite direction on the outer surface of the slide rail 19 to return to the initial position, thereby realizing the reset limit of the drawer box 4. The principle is the same as above, so it will not be elaborated on here.
[0039] When the components inside the cabinet 1 generate heat, the operator plugs in the fan 12 and starts the external controller of the fan 12. This causes the fan 12 to draw air through the air inlet pipe 16, exhaust pipe 13, and duct 14 to the inner cavity of the air outlet nozzle 11. The air outlet nozzle 11 then blows air evenly onto the components inside the drawer box 4 to dissipate heat. This allows the heat inside the cabinet 1 to be dissipated through the filter screen 20, thus achieving rapid heat dissipation of the components inside the cabinet 1. This device is simple to operate and convenient for phased use, thereby meeting the needs of customers.
[0040] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A low-voltage withdrawable switchgear, comprising a cabinet (1), characterized in that: A back panel (2) is fixedly connected between the top and bottom of the inner cavity of the cabinet (1). A concave plate (3) is evenly fixedly connected to the left side of the back panel (2). A drawer box (4) is slidably connected to the bottom of the inner cavity of the concave plate (3). The left end of the drawer box (4) passes through the cabinet (1) and is fixedly connected to a drawer panel (5). A positioning box (6) is embedded in the left side of the bottom of the inner cavity of the concave plate (3). A sliding plate (7) is slidably connected to the inner cavity of the positioning box (6). An arc plate (8) is fixedly connected to the top of the sliding plate (7). Springs (9) are fixedly connected to both sides of the bottom of the sliding plate (7). The bottom of the springs (9) is fixedly connected to the connection of the positioning box (6). The bottom of the drawer box (4) is fixedly connected to the bottom of the cabinet (1). The cabinet (1) is uniformly provided with arc grooves (10) for use with arc plate (8). The outer surface of the arc plate (8) is closely fitted with the inner surface of the arc groove (10). An air nozzle (11) for use with drawer box (4) is embedded in the top of the concave plate (3). A fan (12) is fixedly installed on the right side of the top of the cabinet (1). An exhaust pipe (13) is connected to the bottom of the fan (12). The bottom of the exhaust pipe (13) extends to the bottom of the inner cavity of the cabinet (1). A conduit (14) is connected to the top of the air nozzle (11). One end of the conduit (14) passes through the back panel (2) and is connected to the exhaust pipe (13). Support components (15) are provided at the four corners of the bottom of the cabinet (1).
2. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The support assembly (15) includes a stud (151), the top of which is fixedly connected to the connection of the cabinet (1), and a support protrusion (152) is threaded onto the outer surface of the stud (151).
3. A low-voltage withdrawable switchgear according to claim 2, characterized in that: A rubber pad is fixedly connected to the bottom of the supporting protrusion (152), and the rubber pad is circular.
4. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The left side of the fan (12) is connected to an air inlet pipe (16), and the left end of the air inlet pipe (16) is threaded with a filter cover.
5. A low-voltage withdrawable switchgear according to claim 1, characterized in that: A limiting plate (17) is fixedly connected to the right side of the bottom of the drawer box (4). A limiting groove (18) that works with the limiting plate (17) is provided at the bottom of the inner cavity of the concave plate (3). The outer surface of the limiting plate (17) is slidably connected to the inner surface of the limiting groove (18).
6. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The concave plate (3) is fixedly connected to slide rails (19) at the front and rear positions of the bottom of the inner cavity and on the outside of the positioning box (6). The outer surface of the slide rails (19) is slidably connected to the inner surface of the drawer box (4).
7. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The cabinet (1) has a filter screen (20) embedded on both the front and back sides. The filter screen (20) is rectangular.