Filter screen detachable power distribution room ventilation device
By designing a power distribution room ventilation device with detachable filters, the problem of difficult filter removal was solved, enabling convenient disassembly and cleaning, and improving the maintenance efficiency of the device and the service life of the filters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MINGXIN ELECTRIC POWER ENGINEERING CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-29
Smart Images

Figure CN224305238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution room ventilation technology, specifically a power distribution room ventilation device with a detachable filter. Background Technology
[0002] A power distribution room ventilation system refers to a system of equipment used to improve air quality, control temperature and humidity, and ensure the normal operation of electrical equipment and the safety of personnel within the power distribution room. Its main functions include removing indoor heat, introducing fresh air, and regulating indoor temperature and humidity, for example;
[0003] Authorization announcement number CN213460781U discloses a ventilation device for a power distribution room, which includes a power distribution room body. Ventilation holes are provided on opposite side walls of the power distribution room body. The ventilation holes are opposite in position and of the same size. A ventilation plate is installed inside each ventilation hole, and a baffle is installed outside the ventilation plate. In this application, the baffle outside the ventilation plate allows air to circulate between the power distribution room body and the outside air when the baffle is open, making the air inside the power distribution room fresher. When the baffle is closed, rainwater is prevented from entering the power distribution room body, thereby reducing the risk of leakage in the power distribution cabinets inside the power distribution room and improving the safety of using the power distribution cabinets.
[0004] However, the existing power distribution room ventilation system is not convenient to disassemble and maintain the internal filter screen after use. When the filter screen is damaged during long-term use, it is not easy to disassemble and replace it, which affects the maintenance and repair efficiency of the system.
[0005] Therefore, in order to address the above problems, there is an urgent need to innovate the existing ventilation system in the power distribution room. Summary of the Invention
[0006] The purpose of this utility model is to provide a power distribution room ventilation device with a detachable filter screen, so as to solve the problem mentioned in the background art that it is inconvenient to disassemble and maintain the filter screen installed inside after use, which makes it difficult to disassemble and replace the filter screen when it is damaged during long-term use, thus affecting the maintenance and repair efficiency of the device.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a power distribution room ventilation device with a detachable filter screen, comprising: a support frame, and a support block disposed on the inner side of the support frame, wherein an air intake fan blade is installed on the outer side of the support block, and a drive motor is connected to the left side of the support block;
[0008] Also includes:
[0009] A positioning block is installed on the left side of the support frame, and the inner side of the positioning block is connected to the wall of the power distribution room. A connecting plate is installed on the right end of the wall of the power distribution room. A first drive rod is connected to the right side of the support block, and a limit frame is provided on the outer side of the first drive rod. A limit component is provided on the outer side of the wall of the power distribution room.
[0010] The mounting plate is installed on the right side of the support frame, and a second limiting block is connected to the outer side of the mounting plate. A guide strip is connected to the left side of the second limiting block, and a damper is provided on the outer side of the second limiting block. A second operating rod is connected to the right side of the second limiting block. A filter screen is provided inside the mounting plate, and a cleaning component is provided in the middle of the mounting plate.
[0011] In one possible implementation, the second limiting block is slidably connected to the guide strip, and the cross-section of the guide strip is a "T" shaped structure.
[0012] In one possible scenario, the second limiting block is engaged with the mounting plate, and the second limiting block is symmetrically positioned about the central axis of the support frame.
[0013] In one possible scenario, the first drive rod is rotatably connected to the limit frame.
[0014] In one possible implementation, the limiting assembly includes a first operating rod mounted on the outside of the support frame, and a first limiting block is connected to the inside of the first operating rod. A guide rod is provided on the outside of the first limiting block, and a limiting rod passes through the left side of the first operating rod.
[0015] The limiting rod is engaged with both the first operating rod and the support frame, and the first operating rod is threadedly connected to the first limiting block.
[0016] In one possible implementation, the first limiting block is engaged with the connecting plate and slidably connected with the guide rod.
[0017] In one possible implementation, the cleaning assembly includes a second drive rod mounted in the middle of the mounting plate, with a guide ring provided in the middle of the second drive rod, a sweeping rod connected to the right side of the second drive rod, and sweeping bristles provided on the left side of the sweeping rod.
[0018] The second drive rod is rotatably connected to the guide ring, and the second drive rod is engaged with the first drive rod.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This power distribution room ventilation device with a detachable filter screen facilitates the disassembly and maintenance of the internal filter screen after use. This allows for easy replacement of the filter screen when it becomes damaged during long-term use, preventing any impact on the efficiency of device maintenance and repair. Furthermore, it facilitates cleaning one side of the filter screen during use, making it less susceptible to dust clogging over extended periods, thus improving its lifespan and overall performance. Specific details are as follows:
[0020] The first operating lever, in conjunction with the guide rod, pushes the first limiting block to move inward, so that the inwardly moving first limiting block engages with the connecting plate, thus connecting the support frame and the wall of the power distribution room in series, improving the installation and use efficiency of the device and enhancing its performance.
[0021] The first drive rod, in conjunction with the guide ring, pushes the second drive rod to rotate inside the mounting plate. This causes the second drive rod to rotate the cleaning rod and cleaning brush on the right side of the mounting plate to clean the right side surface of the filter screen. This prevents dust and impurities trapped by the filter screen from accumulating on the right side surface of the filter screen and thus avoids dust and impurities affecting the screening effect of the filter screen.
[0022] The second operating lever, in conjunction with the guide bar, moves the second limiting block outward to displace the damper, causing the second limiting block to loosen its locking limit on the mounting plate. This allows the operator to pull the mounting plate and filter screen to the right for maintenance and repair, preventing damage to the filter screen during prolonged use and improving the efficiency of disassembly and maintenance. Attached Figure Description
[0023] Figure 1 This is a frontal cross-sectional view of the present invention.
[0024] Figure 2 This is a side view sectional structural diagram of the present invention;
[0025] Figure 3 This is a top view sectional structural diagram of the present invention;
[0026] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0027] Figure 5 This is a schematic cross-sectional view of the connection between the second limiting block and the guide strip of this utility model.
[0028] Figure 6 This is a schematic cross-sectional view of the connection between the second drive rod and the sweeping rod of this utility model.
[0029] In the diagram: 1. Power distribution room wall; 2. Connecting plate; 3. Support frame; 4. Positioning block; 5. First operating lever; 6. First limit block; 7. Guide rod; 8. Limit rod; 9. Limit frame; 10. Support block; 11. Air intake fan blade; 12. Drive motor; 13. First drive rod; 14. Mounting plate; 15. Second limit block; 16. Guide strip; 17. Damper; 18. Second operating lever; 19. Filter screen; 20. Second drive rod; 21. Guide ring; 22. Sweeping rod; 23. Sweeping brush bristles. Detailed Implementation
[0030] 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.
[0031] Please see Figure 1-6 This utility model provides a technical solution: a power distribution room ventilation device with a detachable filter screen, including a power distribution room wall 1, a connecting plate 2, a support frame 3, a positioning block 4, a first operating rod 5, a first limiting block 6, a guide rod 7, a limiting rod 8, a limiting frame 9, a support block 10, an air intake fan blade 11, a drive motor 12, a first drive rod 13, a mounting plate 14, a second limiting block 15, a guide strip 16, a damper 17, a second operating rod 18, a filter screen 19, a second drive rod 20, a guide ring 21, a cleaning rod 22, and cleaning brush bristles 23.
[0032] Specifically, such as Figure 3 , Figure 4 and Figure 5As shown, by installing the positioning block 4, which is set along the left side of the support frame 3, on the right side of the power distribution room wall 1, the positioning block 4 can initially limit the support frame 3 to the right side of the power distribution room wall 1 due to the engaging connection structure between the positioning block 4 and the power distribution room wall 1. At this time, pulling the limiting rod 8 connected to the left side of the first operating rod 5 upwards will cause the limiting rod 8 to loosen its limiting connection to the first operating rod 5 due to the engaging connection structure between the limiting rod 8, the first operating rod 5, and the support frame 3. This allows the operator to rotate the first operating rod 5. Due to the threaded connection structure between the first operating rod 5 and the first limiting block 6, the first operating rod 5 can effectively push its lower connected part during rotation. When the first limiting block 6 moves inward, the sliding connection between the guide rod 7 and the first limiting block 6 causes the inwardly moving first limiting block 6 to be guided and limited by the guide rod 7, preventing the first limiting block 6 from shifting position during the inward movement. At this time, due to the engaging connection structure between the first limiting block 6 and the connecting plate 2, the inwardly moving first limiting block 6 can effectively engage with the connecting plate 2 to connect the support frame 3 and the power distribution room wall 1 in series. At the same time, the limiting rod 8 is pressed inward, causing the limiting rod 8 to engage and limit the first operating rod 5 again, thereby completing the rapid installation of the device, improving the installation and use efficiency of the device, and improving the use effect of the device.
[0033] Specifically, such as Figure 1 , Figure 2 and Figure 6As shown, after the installation of the device is completed, the drive motor 12 located in the middle of the limit frame 9 is activated, causing the drive motor 12 to drive the support block 10 connected to its right side to rotate inside the support frame 3. At this time, the support block 10 drives the air intake fan blade 11 connected to its outer side to rotate inside the support frame 3. During the rotation, the air intake fan blade 11 can effectively draw ambient air from the right side of the support frame 3 into the interior of the power distribution room wall 1. The cold air flowing to the right is then filtered by the filter screen 19 installed in the middle of the mounting plate 14, preventing the air from carrying a large amount of dust and impurities into the interior of the power distribution room wall 1, thus improving the safety of the device. At the same time, due to the engaging connection structure between the first drive rod 13 and the second drive rod 20, the device can effectively draw ambient air from the right side of the support frame 3 into the interior of the power distribution room wall 1. During the rotation of the support block 10 and the first drive rod 13, the second drive rod 20 can be synchronously pushed to rotate inside the mounting plate 14. At this time, due to the rotational connection structure between the second drive rod 20 and the guide ring 21, the second drive rod 20 is guided and limited by the guide ring 21 during the rotation, which prevents the second drive rod 20 from deviating at an angle during the drive of the first drive rod 13. At the same time, during the rotation, the second drive rod 20 drives the cleaning rod 22 connected to its right side to rotate on the right side of the mounting plate 14, so that the cleaning rod 22 drives the cleaning brush 23 set on its left side to clean the right side surface of the filter screen 19, which prevents the dust and impurities trapped by the filter screen 19 from accumulating on the right side surface of the filter screen 19 and prevents the dust and impurities from affecting the screening effect of the filter screen 19.
[0034] Secondly, after the device is used, by pulling the second operating lever 18 outward, the second operating lever 18 causes the second limiting block 15 connected to its left side to move outward and compress the damper 17. At this time, due to the sliding connection structure between the guide strip 16 and the second limiting block 15, the outwardly moving second limiting block 15 is guided and limited by the guide strip 16, preventing the second limiting block 15 from shifting its position during the outward movement. Due to the engaging connection structure between the second limiting block 15 and the mounting plate 14, the outwardly moving second limiting block 15 relaxes its engaging limit on the mounting plate 14, making it easier for the operator to pull the mounting plate 14 to the right. This causes the mounting plate 14 to move the filter screen 19 to the right and displace it from the inside of the support frame 3, making it easier for maintenance personnel to clean the mounting plate 14 and the filter screen 19. This prevents the filter screen 19 from becoming damaged during long-term use and affecting the filtration effect of the device. At the same time, the brand-new mounting plate 14 and filter screen 19 are reinstalled on the right side of the first drive rod 13. At this time, the pull on the second operating rod 18 is released, causing the damper 17, which was squeezed, to generate a rebound reaction force to push the second limit block 15 to move downward along the guide strip 16 and engage with the mounting plate 14. This improves the efficiency of disassembly and maintenance of the device and reduces the maintenance cost of the device.
[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. A ventilation device for an electrical distribution room with a detachable filter, comprising: The support frame (3) and the support block (10) provided inside the support frame (3) are provided with an air intake fan blade (11) installed on the outside of the support block (10) and a drive motor (12) connected to the left side of the support block (10). Its characteristic is that it further includes: A positioning block (4) is installed on the left side of the support frame (3), and the inner side of the positioning block (4) is connected to the power distribution room wall (1). A connecting plate (2) is installed on the right end of the power distribution room wall (1). A first drive rod (13) is connected to the right side of the support block (10), and a limit frame (9) is provided on the outer side of the first drive rod (13). A limit component is provided on the outer side of the power distribution room wall (1). Mounting plate (14) is mounted on the right side of support frame (3), and a second limiting block (15) is connected to the outside of mounting plate (14). A guide strip (16) is connected to the left side of the second limiting block (15), and a damper (17) is provided on the outside of the second limiting block (15). A second operating rod (18) is connected to the right side of the second limiting block (15). A filter screen (19) is provided inside the mounting plate (14), and a cleaning component is provided in the middle of the mounting plate (14).
2. The power distribution room ventilation device with a detachable filter screen according to claim 1, characterized in that: The second limiting block (15) is slidably connected to the guide strip (16), and the cross-section of the guide strip (16) is a "T" shaped structure.
3. A power distribution room ventilation device with a detachable filter screen according to claim 1, characterized in that: The second limiting block (15) is engaged with the mounting plate (14), and the second limiting block (15) is symmetrically arranged about the central axis of the support frame (3).
4. A power distribution room ventilation device with a detachable filter screen according to claim 1, characterized in that: The first drive rod (13) is rotatably connected to the limiting frame (9).
5. A power distribution room ventilation device with a detachable filter screen according to claim 1, characterized in that: The limiting component includes a first operating rod (5) installed on the outside of the support frame (3), and a first limiting block (6) is connected to the inside of the first operating rod (5). A guide rod (7) is provided on the outside of the first limiting block (6), and a limiting rod (8) passes through the left side of the first operating rod (5). The limiting rod (8) is engaged with the first operating rod (5) and the support frame (3), and the first operating rod (5) is threadedly connected with the first limiting block (6).
6. A power distribution room ventilation device with a detachable filter screen according to claim 5, characterized in that: The first limiting block (6) is engaged with the connecting plate (2), and the first limiting block (6) is slidably connected with the guide rod (7).
7. A power distribution room ventilation device with a detachable filter screen according to claim 1, characterized in that: The cleaning assembly includes a second drive rod (20) installed in the middle of the mounting plate (14), and a guide ring (21) is provided in the middle of the second drive rod (20). A sweeping rod (22) is connected to the right side of the second drive rod (20), and a sweeping brush (23) is provided on the left side of the sweeping rod (22). The second drive rod (20) is rotatably connected to the guide ring (21), and the second drive rod (20) is engaged with the first drive rod (13).