Low-noise cabinet type centrifugal fan box

Abstract

The utility model relates to the technical field of centrifugal fans, and discloses a low-noise cabinet type centrifugal fan box which comprises a box body, the outer wall of the box body is fixedly connected with a vertical block, the interior of the vertical block is rotatably connected with a rotating column, the top end of the rotating column is provided with a cross-shaped clamping groove, the outer wall of the box body is fixedly connected with a hollow block, and the outer wall of the hollow block is fixedly connected with the rotating column. The inner wall of the hollow block is fixedly connected with a round block, the interior of the round block is slidably connected with a long sliding column, the top end of the long sliding column is fixedly connected with a pull block, the bottom end of the long sliding column is fixedly connected with a sliding block, and the outer wall of the sliding block is slidably connected to the inner wall of the hollow block. According to the storage box, through mutual cooperation of the vertical block, the rotating column, the round block, the long sliding column, the pull block, the first spring, the cross-shaped clamping block, the connecting block and the inclined strut, the contact area of the box body and a placing face is increased, vibration energy is dispersed, the vibration amplitude of the placing face is reduced, and extra vibration and noise generated by shaking are reduced.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, and in particular to a low-noise cabinet-type centrifugal fan box. Background Technology

[0002] In modern architecture, whether it is a commercial building (such as an office building, shopping mall, or hotel) or a residential building, good indoor ventilation is the key to ensuring air quality and human comfort. Traditional ventilation equipment is often noisy, which can affect the quiet indoor environment. The emergence of low-noise cabinet centrifugal fan boxes perfectly meets people's requirements for a quiet and comfortable indoor environment.

[0003] In existing technologies, the contact area between the casing and the placement surface is fixed. During operation, the unbalanced force generated by factors such as the rotation of the internal impeller can easily cause the fan casing to shake. This shaking not only affects the operational safety of the fan casing itself, but also generates additional vibration and noise, which seriously affects the performance of the fan casing and the quietness of the surrounding environment. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a low-noise cabinet-type centrifugal fan box, which aims to improve the problem in the prior art where the contact area between the box and the placement surface is fixed, making it easy for the fan box to shake during operation, generating additional vibration and noise, which seriously affects the performance of the fan box and the quietness of the surrounding environment.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A low-noise cabinet-type centrifugal fan box includes a box body. A vertical block is fixedly connected to the outer wall of the box body. A rotating column is rotatably connected inside the vertical block. A cross-shaped slot is formed at the top of the rotating column. A hollow block is fixedly connected to the outer wall of the box body. A circular block is fixedly connected to the inner wall of the hollow block. A long sliding column is slidably connected inside the circular block. A pull block is fixedly connected to the top of the long sliding column. A slider is fixedly connected to the bottom of the long sliding column. The outer wall of the slider is slidably connected to the inner wall of the hollow block. A cross-shaped locking block is fixedly connected to the bottom of the slider. The outer wall of the cross-shaped locking block is slidably connected to the inner wall of the cross-shaped slot. The outer wall of the rotating column is rotatably connected to the inner wall of the hollow block. A connecting block is fixedly connected to the outer wall of the rotating column. A diagonal brace is fixedly connected to the outer wall of the connecting block. A spring is slidably connected to the outer wall of the long sliding column. One end of the spring is fixedly connected to the bottom of the circular block, and the other end of the spring is fixedly connected to the top of the slider. A ventilation assembly is provided on the inner wall of the box body.

[0007] Preferably, the ventilation assembly includes a bracket, the lower surface of which is fixedly connected to the inner wall of the housing, and the upper surface of which is fixedly connected to the centrifugal fan body.

[0008] Preferably, the outer wall of the housing is fixedly connected to an installation port, the inner wall of the installation port is slidably connected to a ventilation grille, and the outer wall of the ventilation grille is provided with a circular slot.

[0009] Preferably, a hollow box is fixedly connected to the outer wall of the mounting port, one end of a second spring is fixedly connected to the inner wall of the hollow box, and a movable plate is fixedly connected to the other end of the second spring. The outer wall of the movable plate is slidably connected to the inner wall of the hollow box.

[0010] Preferably, a short column is fixedly connected to the upper surface of the movable plate, and the outer wall of the short column is slidably connected to the inside of the hollow box.

[0011] Preferably, a slanted frame is fixedly connected to the lower surface of the movable plate, and a locking post is slidably connected to the inner wall of the slanted frame.

[0012] Preferably, the outer wall of the locking post is slidably connected to the inside of the hollow box, the outer wall of the locking post is slidably connected to the inside of the mounting opening, and the outer wall of the locking post is slidably connected to the inner wall of the circular locking groove.

[0013] Preferably, the outer wall of the locking post is fixedly connected to limiting post one and limiting post two, the outer wall of limiting post one is slidably connected to the outer wall of the inclined frame, and the outer wall of limiting post two is slidably connected to the outer wall of the inclined frame.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the contact area between the box and the placement surface is increased by the cooperation between the upright block, rotating column, cross slot, hollow block, round block, long sliding column, pull block, slider, spring, cross slot, connecting block and diagonal brace, the vibration energy is dispersed, the vibration amplitude of the placement surface is reduced, and the additional vibration and noise caused by shaking are reduced.

[0016] 2. In this utility model, the short column, movable plate, inclined frame, clamping column, limiting column one, limiting column two and ventilation grille cooperate with each other to achieve the effect of quick disassembly of ventilation grille, thereby facilitating cleaning and maintenance, ensuring normal operation, easy replacement and upgrading, and improving inspection efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the low-noise cabinet-type centrifugal fan box proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of the ventilation grille of the low-noise cabinet-type centrifugal fan box proposed in this utility model;

[0019] Figure 3This is a cross-sectional schematic diagram of the internal structure of the hollow block of the low-noise cabinet-type centrifugal fan box proposed in this utility model.

[0020] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the hollow box of the low-noise cabinet-type centrifugal fan box proposed in this utility model.

[0021] Legend:

[0022] 1. Box body; 2. Vertical block; 3. Rotating column; 4. Cross slot; 5. Hollow block; 6. Round block; 7. Long sliding column; 8. Pull block; 9. Sliding block; 10. Spring 1; 11. Cross slot; 12. Connecting block; 13. Diagonal brace; 14. Bracket; 15. Centrifugal fan body; 16. Ventilation grille; 17. Round slot; 18. Hollow box; 19. Spring 2; 20. Moving plate; 21. Short column; 22. Slanted frame; 23. Locking column; 24. Limiting column 1; 25. Limiting column 2; 26. Mounting port. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a low-noise cabinet-type centrifugal fan box, including a box body 1. A vertical block 2 is fixedly connected to the outer wall of the box body 1. A rotating column 3 is rotatably connected inside the vertical block 2. A cross-shaped slot 4 is provided at the top of the rotating column 3. A hollow block 5 is fixedly connected to the outer wall of the box body 1. A circular block 6 is fixedly connected to the inner wall of the hollow block 5. A long sliding column 7 is slidably connected inside the circular block 6. A pull block 8 is fixedly connected to the top of the long sliding column 7. A slider 9 is fixedly connected to the bottom of the long sliding column 7. The outer wall of the slider 9 is slidably connected to the inner wall of the hollow block 5. A cross-shaped locking block 11 is fixedly connected to the bottom of the slider 9. The outer wall of 11 is slidably connected to the inner wall of the cross slot 4, the outer wall of the rotating column 3 is rotatably connected to the inner wall of the hollow block 5, the outer wall of the rotating column 3 is fixedly connected to the connecting block 12, the outer wall of the connecting block 12 is fixedly connected to the diagonal brace 13, the outer wall of the long sliding column 7 is slidably connected to the spring 10, one end of the spring 10 is fixedly connected to the bottom end of the round block 6, the other end of the spring 10 is fixedly connected to the top end of the slider 9, and the inner wall of the box 1 is provided with a ventilation assembly; the ventilation assembly includes a bracket 14, the lower surface of the bracket 14 is fixedly connected to the inner wall of the box 1, and the upper surface of the bracket 14 is fixedly connected to the centrifugal fan body 15;

[0025] Specifically, the box 1 can fix the upright block 2, the upright block 2 can support the rotating column 3, the box 1 can fix the hollow block 5, the hollow block 5 can fix the round block 6, the pull block 8 is used to provide a force point, by pulling the pull block 8, the long sliding column 7 can slide inside the round block 6 and drive the slider 9 and the cross block 11 to move upward, the spring 10 can push and reset the cross block 11, the bracket 14 can support the centrifugal fan body 15, and the connecting block 12 can fix the diagonal brace 13. The diagonal brace 13 can be conveniently stored in the folded state, which can reduce the occupied area.

[0026] Reference Figure 2 The outer wall of the housing 1 is fixedly connected to the mounting port 26, and the inner wall of the mounting port 26 is slidably connected to the ventilation grille 16. The outer wall of the ventilation grille 16 is provided with a circular slot 17.

[0027] Specifically, the housing 1 can fix the mounting port 26, and the fan can be installed in the required position through the mounting port 26.

[0028] Reference Figure 1 , Figure 2 and Figure 4 A hollow box 18 is fixedly connected to the outer wall of the mounting port 26. One end of a spring 19 is fixedly connected to the inner wall of the hollow box 18, and a movable plate 20 is fixedly connected to the other end of the spring 19. The outer wall of the movable plate 20 is slidably connected to the inner wall of the hollow box 18. A short column 21 is fixedly connected to the upper surface of the movable plate 20, and the outer wall of the short column 21 is slidably connected to the inside of the hollow box 18. A slanted frame 22 is fixedly connected to the lower surface of the movable plate 20, and a locking post 23 is slidably connected to the inner wall of the slanted frame 22. The outer wall of the locking post 23 is slidably connected to the inside of the hollow box 18, the inside of the mounting port 26, and the inner wall of the locking post 23 is slidably connected to the inner wall of the circular slot 17. Limiting post 1 24 and limiting post 25 are fixedly connected to the outer wall of the locking post 23. The outer wall of limiting post 1 24 is slidably connected to the outer wall of the slanted frame 22, and the outer wall of limiting post 25 is slidably connected to the outer wall of the slanted frame 22.

[0029] Specifically, the mounting port 26 can fix the hollow box 18, the short column 21 is used to provide a force point, and the short column 21 can be moved by pressing it, so that the moving plate 20 slides on the inner wall of the hollow box 18 and causes the second spring 19 to be compressed. The second spring 19 can push and reset the moving plate 20. The first limiting column 24 and the second limiting column 25 can limit the locking column 23. When the moving plate 20 drives the inclined frame 22 to move downward, the first limiting column 24 and the second limiting column 25 will slide on the outer walls of the inclined frame 22 on both sides respectively, thereby pulling the locking column 23 to move inward and slide out from the inner wall of the circular slot 17.

[0030] Working principle: When in use, pulling block 8 causes the long sliding column 7 to move upward and slide inside the circular block 6. This, in turn, drives the cross-shaped locking block 11 upward via the slider 9. During this process, the slider 9 slides against the inner wall of the hollow block 5, while the cross-shaped locking block 11 slides out from the inner wall of the cross-shaped slot 4 at the top of the rotating column 3. Simultaneously, the spring 10, which is slidably connected to the outer wall of the long sliding column 7, contracts under pressure. This, in turn, drives the connecting block 12 to rotate 90 degrees via the rotating brace 13, thus causing the connecting block 12 to drive the rotating column... 3. Rotating inside the upright block 2 and the inner wall of the hollow block 5, when the diagonal brace 13 is rotated to be horizontal and perpendicular to the box body 1, the pull block 8 is no longer pulled, causing the spring 10, which is in a contracted state, to rebound and reset. Through the slider 9, the cross-shaped locking block 11 moves downward and slides again to the inner wall of the cross-shaped locking groove 4, thus limiting the cross-shaped locking groove 4. This limits the connection block 12 and the diagonal brace 13, thereby increasing the contact area between the box body 1 and the placement surface, dispersing the vibration energy, reducing the vibration amplitude of the placement surface, and reducing the vibration caused by shaking. Additional vibrations and noise necessitate the disassembly of the ventilation grille 16 during prolonged use. To disassemble the ventilation grille 16, simply press the short post 21. Pressing the short post 21 causes the moving plate 20 to slide downwards against the inner wall of the hollow box 18, causing the spring 19 to contract under pressure. As the moving plate 20 moves downwards, the inclined frame 22 moves downwards, causing the first limiting post 24 and the second limiting post 25 to slide against the outer walls of the inclined frame 22 on both sides, pulling the locking post 23 inwards and sliding it against the inclined frame 22. The inner wall of the ventilation grille 16 allows the locking post 23 to slide inward within the hollow box 18 and the mounting port 26, and slide out from the inner wall of the circular slot 17 on the outer wall of the ventilation grille 16. This causes the ventilation grille 16 to lose the limiting effect of the locking post 23, allowing the ventilation grille 16 to be slid out from the inner wall of the mounting port 26, thus completing the quick disassembly of the ventilation grille 16. This achieves the effect of quick disassembly of the ventilation grille 16, which facilitates cleaning and maintenance, ensures normal operation, facilitates replacement and upgrading, and improves inspection efficiency.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A low-noise cabinet-type centrifugal fan enclosure, comprising a enclosure (1), characterized in that: A vertical block (2) is fixedly connected to the outer wall of the box (1). A rotating column (3) is rotatably connected inside the vertical block (2). A cross slot (4) is provided at the top of the rotating column (3). A hollow block (5) is fixedly connected to the outer wall of the box (1). A round block (6) is fixedly connected to the inner wall of the hollow block (5). A long sliding column (7) is slidably connected inside the round block (6). A pull block (8) is fixedly connected to the top of the long sliding column (7). A slider (9) is fixedly connected to the bottom of the long sliding column (7). The outer wall of the slider (9) is slidably connected to the inner wall of the hollow block (5). The bottom of the slider (9) is fixedly connected to the inner wall of the hollow block (5). A cross-shaped locking block (11) is fixedly connected to the outer wall of the cross-shaped locking block (11), which is slidably connected to the inner wall of the cross-shaped locking groove (4). The outer wall of the rotating column (3) is rotatably connected to the inner wall of the hollow block (5). A connecting block (12) is fixedly connected to the outer wall of the rotating column (3). A diagonal brace (13) is fixedly connected to the outer wall of the connecting block (12). A spring (10) is slidably connected to the outer wall of the long sliding column (7). One end of the spring (10) is fixedly connected to the bottom end of the round block (6), and the other end of the spring (10) is fixedly connected to the top end of the slider (9). A ventilation assembly is provided on the inner wall of the box (1).

2. The low-noise cabinet-type centrifugal fan box according to claim 1, characterized in that: The ventilation assembly includes a bracket (14), the lower surface of which is fixedly connected to the inner wall of the housing (1), and the upper surface of which is fixedly connected to the centrifugal fan body (15).

3. The low-noise cabinet-type centrifugal fan box according to claim 1, characterized in that: The outer wall of the box (1) is fixedly connected to an installation port (26), and the inner wall of the installation port (26) is slidably connected to a ventilation grille (16). The outer wall of the ventilation grille (16) is provided with a circular slot (17).

4. The low-noise cabinet-type centrifugal fan box according to claim 3, characterized in that: A hollow box (18) is fixedly connected to the outer wall of the mounting port (26). One end of a spring (19) is fixedly connected to the inner wall of the hollow box (18). A movable plate (20) is fixedly connected to the other end of the spring (19). The outer wall of the movable plate (20) is slidably connected to the inner wall of the hollow box (18).

5. The low-noise cabinet-type centrifugal fan box according to claim 4, characterized in that: A short column (21) is fixedly connected to the upper surface of the movable plate (20), and the outer wall of the short column (21) is slidably connected to the inside of the hollow box (18).

6. The low-noise cabinet-type centrifugal fan box according to claim 4, characterized in that: The lower surface of the movable plate (20) is fixedly connected to an inclined frame (22), and the inner wall of the inclined frame (22) is slidably connected to a locking post (23).

7. The low-noise cabinet-type centrifugal fan box according to claim 6, characterized in that: The outer wall of the locking post (23) is slidably connected to the inside of the hollow box (18), the outer wall of the locking post (23) is slidably connected to the inside of the mounting port (26), and the outer wall of the locking post (23) is slidably connected to the inner wall of the circular slot (17).

8. The low-noise cabinet-type centrifugal fan box according to claim 6, characterized in that: The outer wall of the card post (23) is fixedly connected to the first limiting post (24) and the second limiting post (25). The outer wall of the first limiting post (24) is slidably connected to the outer wall of the inclined frame (22), and the outer wall of the second limiting post (25) is slidably connected to the outer wall of the inclined frame (22).

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