Fire protection fume hood centrifugal fan

Abstract

The utility model discloses a fire ventilation cabinet formula centrifugal fan relates to centrifugal fan technical field, including the body and the support frame of body lower extreme installation, and the upper end of body is provided with the driving piece, and the outside of driving piece and body is provided transmission piece, the inside of body is provided with the air inlet, and the outside of air inlet is provided with the dustproof board, and the front end of body is provided with the gas outlet, the upper end fixed mounting of support frame has the locating block, and the lower extreme fixed mounting of support frame has two groups of fixed link. This fire ventilation cabinet formula centrifugal fan, through the rotation of vertical rotating lever, can make vertical rotating lever through the close adhesion of support block and vertical wall, make this centrifuge vertical installation on the outside of wall, and through the screw through the hole in the inside of support frame, can also install this centrifuge horizontally on the outside of fire ventilation pipeline, make this centrifuge can be used in multiple conditions and install, effectively expand the application range of this centrifuge.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fan technology, specifically a fire-fighting ventilation cabinet type centrifugal fan. Background Technology

[0002] Centrifugal fans are a type of driven fluid machinery that uses mechanical energy to compress and transport gas. They are widely used in factories, mines, tunnels, cooling towers, vehicles, and fire ventilation. However, existing centrifugal fans still have certain defects in use. When cabinet-type centrifugal fans are pumping air, external dust can easily enter, resulting in a lot of dust in the air blown out by the fan. Inhaling this dust can cause harm to the body.

[0003] Patent CN218717792U discloses a low-noise fire-fighting ventilation cabinet centrifugal fan. Through the cooperation of a fixed plate, slider, lifting groove, mesh plate, auxiliary plate, limiting groove, support block, rotating groove, movable shaft and baffle, dust can be blocked. At the same time, the mesh plate can be easily disassembled for cleaning. This solves the problem that in existing low-noise fire-fighting ventilation cabinet centrifugal fans, external dust can easily enter during ventilation, resulting in a lot of dust in the air blown out by the fan, which can cause harm to the body if inhaled.

[0004] In the aforementioned disclosed patent, the centrifugal fan solves the problems mentioned above. However, the centrifugal fan in this patent still has the following problems: during the installation process, the centrifugal fan needs to be installed directly through the support feet at the lower end of the centrifugal fan. During the installation process, the centrifugal fan needs to be installed horizontally or vertically according to the usage requirements. However, the centrifugal fan is directly fixed by the support feet at the lower end, making it difficult for the centrifugal fan to be applicable to various installation methods, which seriously reduces the applicability of the centrifugal fan.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing centrifugal fan structure. Utility Model Content

[0006] The purpose of this utility model is to provide a fire-fighting ventilation cabinet type centrifugal fan to solve the problem mentioned in the background art that the centrifugal fan needs to be installed directly through the support feet at the bottom of the centrifugal fan during the installation process. During the installation process, the centrifugal fan needs to be installed horizontally or vertically according to the usage requirements. However, the centrifugal fan is directly fixed by the support feet at the bottom, which makes it difficult to adapt to various installation methods and seriously reduces the applicability of the centrifugal fan.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire-fighting ventilation cabinet type centrifugal fan, including a body and a support frame installed at the lower end of the body, and a driving component is provided at the upper end of the body, and a transmission component is provided on the outside of the driving component and the body; an air inlet is provided inside the body, and a dustproof plate is provided on the outside of the air inlet, and an air outlet is provided at the front end of the body; a positioning block is fixedly installed at the upper end of the support frame, and two sets of fixing rods are fixedly installed at the lower end of the support frame; an adjustment structure provided on the outside of the support frame can control the installation state of the body, and a motion structure provided at the upper end of the support frame facilitates the disassembly and assembly of the support frame.

[0008] Preferably, the adjustment structure includes a vertical rotating rod, which is rotatably installed inside the fixed rod, and a supporting rotating rod is rotatably installed inside the vertical rotating rod. Meanwhile, a positioning sliding block is rotatably installed on the outer side of the supporting rotating rod, and a support block is fixedly installed at the lower end of the vertical rotating rod.

[0009] Preferably, the positioning sliding block is slidably installed inside the fixed rod, and two sets of the fixed rod, positioning sliding block and supporting rotating rod are symmetrically arranged about the vertical central axis of the support frame.

[0010] Preferably, a fixed frame is fixedly installed at the upper end of the support frame, and a limit block is slidably installed inside the fixed frame, with the limit block located at the upper end of the support rod.

[0011] Preferably, a return spring is fixedly installed at the upper end of the limiting block, and the return spring is located inside the fixed frame. A telescopic rod is fixedly installed at the upper end of the limiting block, and the telescopic rod is located inside the return spring.

[0012] Preferably, the motion structure includes a connecting plate, which is fixedly installed on the upper end of the telescopic rod, and a sliding member is fixedly installed on the lower end of the connecting plate on the side away from the telescopic rod.

[0013] Preferably, a positioning element is slidably mounted on the outer side of the sliding element, and the positioning element is fixedly mounted on the outer side of the machine body. Furthermore, two sets of positioning elements, sliding elements, and connecting plates are symmetrically arranged about the vertical central axis of the machine body.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. By rotating the vertical rotating rod, the vertical rotating rod can be tightly fitted to the vertical wall through the support block, so that the centrifuge can be installed vertically on the outside of the wall. And by screwing through the holes inside the support frame, the centrifuge can also be installed horizontally on the outside of the fire ventilation duct, so that the centrifuge can be used in a variety of situations, effectively expanding the scope of application of the centrifuge. 2. Furthermore, by moving the connecting plate upward, the limiting block can be moved upward and the limiting of the positioning sliding block can be released, which facilitates the storage of the centrifuge and ensures the convenience of disassembling and storing the centrifuge. 3. Furthermore, by supporting the vertical rotating rod and the support frame with the supporting rotating rod, the stability of the centrifuge body support can be ensured, and by limiting the positioning sliding block with the limiting block, the stability of the centrifuge support can be further ensured. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 3 This is a top view of the three-dimensional structure of the support frame of this utility model; Figure 4 This is a top-view three-dimensional structural diagram of the sliding component of this utility model; Figure 5 This is a schematic diagram of the vertical rotating rod in its vertical state according to this utility model; Figure 6 This is a top view of the three-dimensional structure of the fixed frame of this utility model.

[0016] In the diagram: 1. Body; 2. Support frame; 3. Drive component; 4. Transmission component; 5. Air inlet; 6. Air outlet; 7. Dustproof plate; 8. Positioning block; 9. Fixing rod; 10. Vertical rotating rod; 11. Support rotating rod; 12. Positioning sliding block; 13. Support block; 14. Fixing frame; 15. Limiting block; 16. Return spring; 17. Telescopic rod; 18. Connecting plate; 19. Sliding component; 20. Positioning component. Detailed Implementation

[0017] 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.

[0018] In a specific embodiment, this utility model provides the following technical solution: a fire-fighting ventilation cabinet type centrifugal fan, such as... Figures 1-6 The basic operating procedure of the centrifuge is shown in the figure. The machine body 1 and the support frame 2 installed at the lower end of the machine body 1 are provided. The upper end of the machine body 1 is provided with a drive component 3, and the drive component 3 and the outer side of the machine body 1 are provided with a transmission component 4. The interior of the machine body 1 is provided with an air inlet 5, and the outer side of the air inlet 5 is provided with a dustproof plate 7. The front end of the machine body 1 is provided with an air outlet 6. The upper end of the support frame 2 is fixedly installed with a positioning block 8, and the lower end of the support frame 2 is fixedly installed with two sets of fixing rods 9. The adjustment structure provided on the outer side of the support frame 2 can control the installation state of the machine body 1. The motion structure provided on the upper end of the support frame 2 facilitates the disassembly and assembly of the support frame 2.

[0019] When using this fire-fighting ventilation cabinet centrifugal fan, the centrifuge needs to be installed at one end of the fire escape. During the installation process, the installation status of the centrifuge can be adjusted according to the usage requirements. The machine body 1 can be directly installed horizontally through the support frame 2. When installing the centrifuge on the outside of the wall, the positioning block 8 is needed to install the centrifuge on the outside of the wall. At the same time, the vertical rotating rod 10 needs to be rotated to the vertical position, and the support block 13 needs to be in contact with the wall so that the vertical rotating rod 10 can fit against the wall, ensuring the stability of the centrifuge operation.

[0020] In one specific embodiment, such as Figures 1-5 As shown, in order to solve the problem that existing centrifuges cannot be installed and used in a variety of situations, the specific installation process of this centrifuge is disclosed. The adjustment structure includes a vertical rotating rod 10, which is rotatably installed inside the fixed rod 9. A support rotating rod 11 is rotatably installed inside the vertical rotating rod 10, and a positioning sliding block 12 is rotatably installed on the outer side of the support rotating rod 11. A support block 13 is fixedly installed at the lower end of the vertical rotating rod 10. The positioning sliding block 12 is slidably installed inside the fixed rod 9. The fixed rod 9, the positioning sliding block 12, and the support rotating rod 11 are arranged symmetrically about the vertical central axis of the support frame 2 in two sets. A fixed frame 14 is fixedly installed at the upper end of the support frame 2. A limit block 15 is slidably installed inside the fixed frame 14 and is located at the upper end of the support rotating rod 11. A return spring 16 is fixedly installed at the upper end of the limit block 15 and is located inside the fixed frame 14. A telescopic rod 17 is fixedly installed at the upper end of the limit block 15 and is located inside the return spring 16.

[0021] When using this fire-fighting ventilation cabinet centrifugal fan, it needs to be installed at one end of the fire escape route. During installation, the centrifugal fan can be mounted on the outside of the wall. During this process, the horizontal vertical rotating rod 10 needs to be rotated to a vertical position, ensuring it is flush against the wall. This allows the support block 13 to be flush against the wall, and the positioning block 8 is flush against the wall, secured by screws through the holes inside the positioning block 8. As the vertical rotating rod 10 rotates, the support rotating rod 11 rotates as well. This rotation causes the positioning sliding block 12 to slide inside the fixed rod 9. During this sliding motion, the positioning sliding block 12 contacts the limiting block 15 and engages with the limiting block 15. When the centrifuge is compressed, the limiting block 15 moves upward and compresses the return spring 16. The return spring 16 contracts after being compressed, and the positioning sliding block 12 moves to the other side of the limiting block 15. At this time, the contracted return spring 16 expands, which allows the positioning sliding block 12 to complete the limiting. Then, the screw can be passed through the hole inside the vertical rotating rod 10, and the vertical rotating rod 10 is limited to the outside of the wall. During the horizontal installation of the centrifuge, the horizontal positioning installation of the centrifuge can be completed by directly passing the screw through the hole inside the support frame 2 and the vertical rotating rod 10. At the same time, the vertical and horizontal installation of the centrifuge can effectively expand the installation application range of the centrifuge.

[0022] Based on the above embodiments, such as Figures 1-4 and Figure 6 The disassembly process of the centrifuge is shown in the figure. The motion structure includes a connecting plate 18, which is fixedly installed on the upper end of the telescopic rod 17. A sliding member 19 is fixedly installed on the lower end of the connecting plate 18 away from the telescopic rod 17. A positioning member 20 is slidably installed on the outer side of the sliding member 19. The positioning member 20 is fixedly installed on the outer side of the body 1. The positioning member 20, the sliding member 19, and the connecting plate 18 are arranged symmetrically about the vertical central axis of the body 1 in two sets.

[0023] When disassembling or replacing the fire-fighting ventilation cabinet centrifugal fan, the vertical rotating rod 10 needs to be reset to a horizontal state and positioned inside the fixed rod 9. During this process, the connecting plate 18 needs to be pushed upward. As the connecting plate 18 moves upward, the sliding member 19 moves upward inside the positioning member 20, and the telescopic rod 17 expands. After expanding, the telescopic rod 17 continues to move upward with the connecting plate 18. During the upward movement of the connecting plate 18, the limiting block 15 moves upward, which releases the limiting block 15 from the positioning sliding block 12. At this point, the supporting rotating rod 11 and the vertical rotating rod 10 can rotate back to their initial state, facilitating the disassembly and transportation of the centrifuge. This effectively improves the convenience of disassembly and transportation of the centrifuge and increases its overall practicality.

[0024] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] 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 fire-fighting ventilation cabinet type centrifugal fan, including a body (1) and a support frame (2) installed at the lower end of the body (1), and a drive component (3) is provided at the upper end of the body (1), and a transmission component (4) is provided on the outside of the drive component (3) and the body (1). Its features are: The body (1) is provided with an air inlet (5) inside, and a dustproof plate (7) is provided on the outside of the air inlet (5). The front end of the body (1) is provided with an air outlet (6). The upper end of the support frame (2) is fixedly installed with a positioning block (8), and the lower end of the support frame (2) is fixedly installed with two sets of fixing rods (9). The adjustment structure provided on the outside of the support frame (2) can control the installation state of the body (1). The motion structure provided on the upper end of the support frame (2) facilitates the disassembly and assembly of the support frame (2). The adjustment structure includes a vertical rotating rod (10), which is rotatably installed inside the fixed rod (9). A support rotating rod (11) is rotatably installed inside the vertical rotating rod (10), and a positioning sliding block (12) is rotatably installed on the outside of the support rotating rod (11). A support block (13) is fixedly installed at the lower end of the vertical rotating rod (10).

2. A fire-fighting ventilation cabinet type centrifugal fan according to claim 1, characterized in that: The positioning sliding block (12) is slidably installed inside the fixed rod (9), and the fixed rod (9), the positioning sliding block (12) and the support rotating rod (11) are arranged symmetrically about the vertical central axis of the support frame (2) in two sets.

3. A fire-fighting ventilation cabinet type centrifugal fan according to claim 2, characterized in that: The upper end of the support frame (2) is fixedly installed with a fixed frame (14), and a limit block (15) is slidably installed inside the fixed frame (14), and the limit block (15) is located at the upper end of the support rotating rod (11).

4. A fire-fighting ventilation cabinet type centrifugal fan according to claim 3, characterized in that: A reset spring (16) is fixedly installed on the upper end of the limiting block (15), and the reset spring (16) is located inside the fixed frame (14). A telescopic rod (17) is fixedly installed on the upper end of the limiting block (15), and the telescopic rod (17) is located inside the reset spring (16).

5. A fire-fighting ventilation cabinet type centrifugal fan according to claim 4, characterized in that: The motion structure includes a connecting plate (18), which is fixedly installed on the upper end of the telescopic rod (17), and a sliding member (19) is fixedly installed on the lower end of the connecting plate (18) away from the telescopic rod (17).

6. A fire-fighting ventilation cabinet type centrifugal fan according to claim 5, characterized in that: A positioning component (20) is slidably installed on the outside of the sliding component (19), and the positioning component (20) is fixedly installed on the outside of the body (1). The positioning component (20), the sliding component (19) and the connecting plate (18) are arranged symmetrically about the vertical central axis of the body (1) in two sets.

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