Modular centrifugal fan box structure for ease of maintenance

Abstract

The utility model provides a modularization centrifugal fan box structure convenient to maintain relates to fan technical field, including bottom plate, the top fixed mounting of bottom plate has the box, bottom plate is used for providing support to the box, motor no. 1, motor no. 1 fixed mounting is at the one side of box. The utility model discloses, one side sets up moving assembly, through motor no. 2 starts, can drive screw rod rotation, and then makes threaded block along screw rod axial movement, drives the sliding of connecting plate on slide rail, realizes the movement of filter screen no. 1 and filter screen no. 2, like this, when maintaining, the maintenance difficulty of device is greatly reduced, on the other hand sets up damping assembly, and the vibration of device operation is passed to bottom plate, and the transmission of buffer plate is given to telescopic link after receiving pressure, and telescopic link telescopic deformation absorbs part energy, and telescopic link pushes the sliding of sliding block on fixed link, and shock absorbing spring is extruded and deformed, effectively slows down the vibration in the process of fan operation, improves the stability of fan operation.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a modular centrifugal fan box structure that is easy to maintain. Background Technology

[0002] Centrifugal fan boxes, as important aerodynamic equipment, are widely used in many fields such as industrial production, building ventilation, and air conditioning systems. Their main function is to draw in air and accelerate its expulsion through the rotation of the impeller, thereby achieving air transport and exchange. During the operation of a centrifugal fan box, air quality has a significant impact on the equipment's performance and service life. Impurities in the air, such as dust and particulate matter, can not only contaminate the internal components of the fan and reduce its operating efficiency, but also cause wear on critical parts such as the impeller and bearings, shortening the equipment's lifespan. Therefore, filtering the air entering the fan box is essential. Simultaneously, the fan generates vibration during operation; excessive vibration can not only affect the stability of the equipment but also cause noise problems, disturbing the surrounding environment and operators.

[0003] Patent CN219472411U discloses a centrifugal fan box. Specifically, the patent discloses a technical solution that includes "a mounting box, a collection groove on the lower surface of the mounting box, a hydraulic actuator and a sliding rod welded to the upper surface of the collection groove, a limiting block welded to the lower surface of the sliding rod, a connecting plate welded to the lower surface of the hydraulic actuator, a movable plate welded to the lower surface of the connecting plate, casters mounted on the lower surface of the movable plate, and a sliding groove on the upper surface of the movable plate." This achieves the technical effect of "using the hydraulic actuator to control the hydraulic actuator to push the movable plate up and down, then using the sliding rod and sliding groove to fix the moving movable plate and prevent positional displacement; in use, controlling the hydraulic actuator to push the movable plate down to lift the mounting box and expose the casters, then using the casters for movement; when not moving, controlling the hydraulic actuator to retract the casters and store them in the collection groove, so that the placement block contacts the ground during retraction, without affecting the placement and installation of the mounting box."

[0004] The existing equipment has a relatively complicated filter installation method, which makes it inconvenient to clean or replace the filter, increasing the difficulty and cost of maintenance.

[0005] Therefore, we propose a modular centrifugal fan casing structure that is easy to maintain. Utility Model Content

[0006] The purpose of this invention is to provide a modular centrifugal fan box structure that is easy to maintain. By using moving components and shock-absorbing components, the maintenance of the filter screen and the stability of the fan operation are optimized, the maintenance difficulty is reduced, vibration is reduced, the equipment performance is improved, and the problems mentioned in the background art are solved.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A modular centrifugal fan casing structure that is easy to maintain includes: A base plate, on the top of which a box is fixedly installed, the base plate being used to provide support for the box; Motor 1 is fixedly installed on one side of the housing. The output end of Motor 1 is connected to a suction hood, which is fixedly installed inside the housing. A protective cover is fixedly connected to the top of the suction hood. A filter assembly, which is disposed inside the housing, is used to filter the air entering the device. A movable component is disposed in a movable slot inside the base plate, and the movable component is used to drive the filter component to move. A vibration damping component is installed at the bottom of the base plate and is used to reduce the vibration generated by the fan during operation.

[0008] Preferably, the filtering component includes: Filter screen one, the filter screen one is set on the side of the box body near the suction hood, and the bottom of the filter screen one has multiple threaded holes; The second filter screen is located on the side of the housing away from the first filter screen. The bottom of the second filter screen has multiple threaded holes, and the mesh count of the second filter screen is smaller than that of the first filter screen. A bolt, the bolt being threaded into the inside of a threaded hole.

[0009] Preferably, the moving component includes: Motor 2 is fixedly installed inside the base plate and is used to drive the movement of the moving component. A threaded rod is coaxially and fixedly connected to the output end of motor two, and the threaded rod is rotatably connected to the inside of the base plate; Two threaded blocks are threadedly connected to the outer periphery of the threaded rod, and the two sides of the threaded blocks are in close contact with the moving groove. A connecting plate is fixedly connected to the top of the threaded block. A filter screen one is provided on the top of one connecting plate, and a filter screen two is provided on the top of the other connecting plate. A slide rail is fixedly installed inside the movable groove, and a connecting plate is slidably connected to the top of the slide rail.

[0010] Preferably, the shock absorption assembly includes: Two buffer plates are fixedly connected to the bottom of the base plate; A telescopic rod, which is rotatably connected to the bottom of the buffer plate; A support plate is positioned directly below the base plate.

[0011] Preferably, the shock absorption assembly further includes: Two fixing rods are fixedly installed on the top of the support plate; A shock-absorbing spring, which is sleeved on the outer periphery of the fixed rod; The slider is slidably connected to both ends of the fixed rod. One side of each of the two sliders is fixedly connected to both ends of the shock-absorbing spring. The top of the slider is rotatably connected to the end of the telescopic rod away from the buffer plate.

[0012] Preferably, a door is hinged to one side of the box body, the door has multiple through holes inside, and a latch is provided on the corresponding side of the door and the box body.

[0013] Compared with the prior art, the beneficial effects of this utility model are: In this invention, on the one hand, a moving component is provided. Starting the second motor drives the threaded rod to rotate, which in turn moves the threaded block along the axial direction of the threaded rod, causing the connecting plate to slide on the slide rail, thus realizing the movement of filter screen one and filter screen two. This greatly reduces the difficulty of maintaining the device. On the other hand, a shock-absorbing component is provided. The vibration generated during device operation is transmitted to the base plate. The buffer plate, after receiving pressure, transmits it to the telescopic rod. The telescopic rod extends and deforms to absorb some of the energy. Simultaneously, the telescopic rod pushes the slider to slide on the fixed rod, and the shock-absorbing spring is compressed and deformed, effectively reducing the vibration during fan operation and improving the stability of fan operation. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a modular centrifugal fan box structure that is easy to maintain, provided by this utility model; Figure 2 A top view of the overall structure of a modular centrifugal fan box structure that is easy to maintain, provided by this utility model; Figure 3 A cross-sectional view of the overall structure of a modular centrifugal fan box structure that is easy to maintain, provided by this utility model; Figure 4 This is a partial structural cross-sectional view of a modular centrifugal fan box structure that is easy to maintain, as provided by this utility model.

[0015] Legend: 1. Base plate; 2. Box body; 3. Motor 1; 4. Suction hood; 5. Protective cover; 6. Filter screen 1; 7. Filter screen 2; 8. Bolt; 9. Motor 2; 10. Threaded rod; 11. Threaded block; 12. Connecting plate; 13. Slide rail; 14. Buffer plate; 15. Telescopic rod; 16. Support plate; 17. Fixing rod; 18. Shock-absorbing spring; 19. Slider; 20. Box door; 21. Lock. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Example like Figure 1-4 As shown, this utility model provides a technical solution: a modular centrifugal fan casing structure that is easy to maintain, comprising: The base plate 1 has a box 2 fixedly installed on its top, and the base plate 1 is used to support the box 2. Motor 3 is fixedly installed on one side of housing 2. The output end of motor 3 is connected to suction hood 4, which is fixedly installed inside housing 2. A protective cover 5 is fixedly connected to the top of suction hood 4. The filter assembly is located inside the housing 2 and is used to filter the air entering the device. The moving component is set in a moving slot inside the base plate 1 and is used to move the filter component. The vibration damping component is located at the bottom of the base plate 1. The vibration damping component is used to reduce the vibration generated by the fan during operation. When the motor 3 starts, it drives the suction hood 4 to work and draws in air from one side of the box door 20. After the air enters the box 2, it is filtered by the filter component. At the same time, the moving component can drive the filter component to move, which is convenient for maintenance or replacement of the filter component. The vibration damping component at the bottom of the base plate 1 can reduce the vibration generated by the fan during operation.

[0021] The filtering components include: Filter screen 6 is located on the side of the housing 2 near the suction hood 4, and multiple threaded holes are provided at the bottom of filter screen 6. Filter screen 2 7 is located on the side of housing 2 away from filter screen 1 6. Filter screen 2 7 has multiple threaded holes at its bottom. The mesh size of filter screen 2 7 is smaller than that of filter screen 1 6. Bolt 8 is threaded into the inside of the threaded hole. After the air enters the housing 2 from the suction hood 4, it first passes through filter screen 6 for preliminary filtration, intercepting larger particles of impurities. Then it passes through filter screen 7 for further filtration. Filter screen 7 has a smaller mesh size than filter screen 6, so it can filter finer particles. Filter screen 6 and filter screen 7 are fixed to the top of the connecting plate 12 by bolt 8 for easy disassembly and maintenance.

[0022] The mobile components include: Motor 2 9 is fixedly installed inside the base plate 1 and is used to drive the movement of the moving component. Threaded rod 10 is coaxially fixedly connected to the output end of motor 2 9, and threaded rod 10 is rotatably connected inside the base plate 1; Threaded blocks 11, two threaded blocks 11 are threadedly connected to the outer periphery of the threaded rod 10, and the two sides of the threaded blocks 11 are in close contact with the moving groove; A connecting plate 12 is fixedly connected to the top of the threaded block 11. A filter screen 6 is provided on the top of one connecting plate 12, and a filter screen 7 is provided on the top of another connecting plate 12. The slide rail 13 is fixedly installed inside the moving groove. The top of the slide rail 13 is slidably connected to the connecting plate 12. When the filter assembly needs maintenance, the motor 9 starts and drives the threaded rod 10 to rotate. Since the threaded block 11 is threadedly connected to the threaded rod 10 and its two sides are in close contact with the moving groove, the threaded block 11 will move along the axial direction of the threaded rod 10 when the threaded rod 10 rotates, thereby driving the connecting plate 12 to move. The connecting plate 12 slides on the slide rail 13, realizing the movement of the filter screen 6 and the filter screen 7, which facilitates the maintenance or replacement of the filter screen.

[0023] The damping components include: Buffer plate 14, two buffer plates 14 are fixedly connected to the bottom of the base plate 1; Telescopic rod 15 is rotatably connected to the bottom of buffer plate 14; Support plate 16 is located directly below base plate 1. When the fan operates, it generates vibration, which is transmitted to base plate 1. The buffer plate 14 at the bottom of base plate 1 is subjected to pressure, which is then transmitted to telescopic rod 15. Telescopic rod 15 extends and retracts, absorbing some of the vibration energy. At the same time, support plate 16 provides support for the entire structure, reducing the impact of vibration on the surrounding environment. The vibration damping components also include: Fixing rod 17, two fixing rods 17 are fixedly installed on the top of the support plate 16; A shock-absorbing spring 18 is sleeved on the outer periphery of the fixed rod 17. The slider 19 is slidably connected to both ends of the fixed rod 17. The corresponding sides of the two sliders 19 are fixedly connected to both ends of the shock-absorbing spring 18. The top of the slider 19 is rotatably connected to the end of the telescopic rod 15 away from the buffer plate 14. The vibration generated by the operation of the fan causes the buffer plate 14 to press down the telescopic rod 15. The telescopic rod 15 pushes the slider 19 to slide on the fixed rod 17. The shock-absorbing spring 18 is deformed by the compression of the slider 19, absorbing and dissipating the vibration energy, further reducing the vibration and improving the stability of the fan operation.

[0024] A door 20 is hinged to one side of the enclosure 2. The door 20 has multiple through holes inside. A latch 21 is provided on the corresponding side of the door 20 and the enclosure 2. When maintenance or inspection of the interior of the enclosure 2 is required, the latch 21 is opened and the door 20 is rotated by the hinge to open it, so that the internal structure of the enclosure 2 can be operated. Air can enter and exit through the through holes on the door 20. At the same time, the latch 21 can lock the door 20 when it is not necessary to open it, so as to ensure the stable operation of the internal structure of the enclosure 2.

[0025] The working process of this utility model: Step 1: Start motor 3. The output of motor 3 drives the suction hood 4 to work, drawing air in from the side of the door 20 through the through-hole on the door 20. The air enters the box 2 and first passes through filter screen 6, which intercepts larger particles and performs preliminary filtration. Then the air continues to flow and passes through filter screen 7, which further filters the air, removing finer particles, making the air entering the subsequent components of the fan cleaner. During the operation of the fan, the vibration generated is transmitted to the bottom plate 1. The buffer plate 14 at the bottom of the bottom plate 1 is subjected to pressure, which is transmitted to the telescopic rod 15. The telescopic rod 15 deforms and absorbs some of the vibration energy. At the same time, the telescopic rod 15 pushes the slider 19 to slide on the fixed rod 17. The shock-absorbing spring 18 is deformed by the compression of the slider 19, further absorbing and dissipating the vibration energy and reducing the impact of vibration on the fan and the surrounding environment. Step 2: Motor 3 continues to run, and the suction hood 4 continuously draws in air. The air is continuously filtered through filter screen 6 and filter screen 7 to ensure a stable air quality entering the fan and provide a clean air source for the normal operation of the fan. The shock absorption components continue to play their role. Components such as buffer plate 14, telescopic rod 15, and shock absorption spring 18 work together to continuously absorb and consume the vibration energy generated during the operation of the fan, so that the fan always maintains a stable operating state and reduces the problem of component damage and performance degradation caused by vibration. Step 3: When maintenance or inspection of the interior of housing 2 is required, first open latch 21, then rotate the door 20 via the hinge to open the door 20 to operate the internal structure of housing 2. Start motor 2 9, which drives the threaded rod 10 to rotate. Since the threaded block 11 is threadedly connected to the threaded rod 10 and its two sides are in close contact with the moving groove, the threaded block 11 will move along the axial direction of the threaded rod 10 when the threaded rod 10 rotates, thereby driving the connecting plate 12 to slide on the slide rail 13. Move the filter screen 1 6 and filter screen 2 7 to a position that is convenient for maintenance. Unscrew the bolt 8 and remove the filter screen 1 6 and filter screen 2 7 from the connecting plate 12 for cleaning, replacement, or inspection. After maintenance is completed, reinstall the filter screens in reverse order, close the door 20 and lock latch 21, and the fan can resume normal operation.

[0026] 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 centrifugal fan casing structure that is easy to maintain, characterized in that, include: A base plate (1) is provided with a box body (2) fixedly installed on the top of the base plate (1). The base plate (1) is used to provide support for the box body (2). Motor 1 (3), the motor 1 (3) is fixedly installed on one side of the housing (2), the output end of the motor 1 (3) is connected to a suction hood (4), the suction hood (4) is fixedly installed inside the housing (2), and a protective cover (5) is fixedly connected to the top of the suction hood (4). A filter assembly is disposed inside the housing (2) and is used to filter the air entering the device. A movable component is provided in a movable slot inside the base plate (1), and the movable component is used to drive the filter component to move. The vibration damping component is located at the bottom of the base plate (1) and is used to reduce the vibration generated by the fan during operation.

2. The modular centrifugal fan casing structure for easy maintenance according to claim 1, characterized in that: The filtering component includes: Filter screen one (6) is set on the side of the box (2) near the suction hood (4), and the bottom of the filter screen one (6) has multiple threaded holes; Filter screen two (7) is located on the side of the box (2) away from filter screen one (6). The bottom of filter screen two (7) has multiple threaded holes. The mesh number of filter screen two (7) is smaller than that of filter screen one (6). Bolt (8), which is threaded inside a threaded hole.

3. The modular centrifugal fan casing structure for easy maintenance according to claim 1, characterized in that: The moving component includes: Motor 2 (9), which is fixedly installed inside the base plate (1), is used to drive the movement of the moving component; A threaded rod (10) is coaxially fixedly connected to the output end of motor two (9), and the threaded rod (10) is rotatably connected to the inside of the base plate (1); Threaded blocks (11), two of the threaded blocks (11) are threadedly connected to the outer periphery of the threaded rod (10), and the two sides of the threaded blocks (11) are in close contact with the moving groove; A connecting plate (12) is fixedly connected to the top of the threaded block (11). A filter screen one (6) is provided on the top of one of the connecting plates (12), and a filter screen two (7) is provided on the top of the other connecting plate (12). The slide rail (13) is fixedly installed inside the moving groove, and the top of the slide rail (13) is slidably connected to the connecting plate (12).

4. The modular centrifugal fan casing structure for easy maintenance according to claim 1, characterized in that: The shock absorption components include: Buffer plates (14), two of the buffer plates (14) are fixedly connected to the bottom of the base plate (1); Telescopic rod (15), which is rotatably connected to the bottom of buffer plate (14); Support plate (16) is located directly below the base plate (1).

5. The modular centrifugal fan casing structure for easy maintenance according to claim 4, characterized in that: The shock absorption assembly also includes: Fixing rods (17), two of the fixing rods (17) are fixedly installed on the top of the support plate (16); A shock-absorbing spring (18) is sleeved on the outer periphery of a fixed rod (17); The slider (19) is slidably connected to both ends of the fixed rod (17). The corresponding side of the two sliders (19) is fixedly connected to both ends of the shock-absorbing spring (18). The top of the slider (19) is rotatably connected to the end of the telescopic rod (15) away from the buffer plate (14).

6. The modular centrifugal fan casing structure for easy maintenance according to claim 1, characterized in that: A door (20) is hinged to one side of the box body (2). The door (20) has multiple through holes inside. A latch (21) is provided on the corresponding side of the door (20) and the box body (2).

Images