Smoke control and exhaust device for fire engineering
By designing a detachable filter structure and utilizing the cooperation of control blocks and limit blocks, the problems of dust entering and damaging the fan and the difficulty in cleaning the filter are solved, achieving efficient dust blocking and convenient maintenance of the smoke extraction device.
Patent Information
- Application Number
- CN202520125760.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing smoke extraction devices cannot effectively block dust in the smoke, causing dust to enter the fan and damage parts. Furthermore, the way the filter screen is fixed makes it inconvenient to clean and maintain.
The filter adopts a detachable filter structure. Through the cooperation of control blocks and limit blocks, the filter can be quickly disassembled and assembled. The spring action allows the outer shell and connecting cover to be easily separated, simplifying the cleaning and maintenance process of the filter.
It effectively blocks dust in the flue gas, prevents damage to the fan, and simplifies the disassembly and cleaning process of the filter, improving the ease of maintenance of the device.
Smart Images
Figure CN223795419U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a smoke prevention and exhaust device technical field especially relates to a fire engineering smoke prevention and exhaust device. BACKGROUND
[0002] The smoke prevention and exhaust system is the general term of the smoke prevention system and the smoke exhaust system. The smoke prevention system adopts the mechanical pressurized air supply mode or the natural ventilation mode to prevent the smoke from entering the evacuation passage. The smoke exhaust system adopts the mechanical smoke exhaust mode or the natural ventilation mode to exhaust the smoke to the outside of the building.
[0003] The existing smoke prevention and exhaust device cannot block the dust inside the exhaust smoke, which is easy to enter the inside of the fan and cause damage to the parts, reduce the service life and use effect of the fan, and after the filter screen is fixed by the regular bolt, the bolt is difficult to disassemble due to the erosion of dust and oil stains, and it is not convenient to clean and maintain. SUMMARY
[0004] The utility model discloses a fire engineering smoke prevention and exhaust device to solve the technical problems in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model discloses a technical scheme as follows:
[0006] A fire engineering smoke prevention and exhaust device, including the exhaust pipe, the top of exhaust pipe is fixedly installed with the fixed cover, is provided with the shell in the fixed cover, the top of shell is fixedly installed with the fixed block, both ends of shell are provided with the connecting cover, the connecting cover is fixedly installed with the filter screen in, the left end fixedly installed with the fixed frame in the shell, the right side fixedly installed with the fan of fixed frame.
[0007] As a further scheme of the utility model, the top of the fixed cover is provided with a movable groove corresponding to the position of the fixed block, the movable groove is provided with a control block, an installation groove is formed on the inner wall of the movable groove, the control block can be movably clamped in the installation groove, a limiting block is movably installed in the middle of the control block, a limiting slot is formed on the fixed block corresponding to the position of the limiting block, and the bottom of the limiting block can be clamped into the limiting slot.
[0008] As a further scheme of the utility model, the top of the limiting block is fixedly installed with an adjusting block, and the bottom of the adjusting block is fixedly installed with a first spring between the top of the control block.
[0009] As a further scheme of the utility model, the both ends of the shell are fixedly installed with a connecting block, a clamping groove is formed on the connecting block, a connecting groove is formed on the connecting cover corresponding to the position of the connecting block, and the connecting block can be movably clamped into the connecting groove.
[0010] As a further embodiment of this utility model, a fixing groove is provided on the connecting cover at the position corresponding to the slot, a locking block is movably installed in the fixing groove, a stop block is provided in the fixing groove, the stop block is fixedly installed on the side wall of the locking block, and a second spring is fixedly installed between the bottom of the stop block and the inner wall of the fixing groove.
[0011] As a further embodiment of this invention, the bottom of the card block can be movably engaged into the card slot.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, the filters installed at both ends of the outer casing effectively block dust inside the flue gas, thus preventing damage to the fan. By pushing the control block to the left of the movable slot, the control block drives the fixing block to move the outer casing to the left. Then, by pulling up the limit block, the outer casing can be directly separated from the fixing cover. After the outer casing is removed from the fixing cover, the second spring pushes the stop block, and the locking block moves outward. At this time, the connecting covers and filters at both ends of the outer casing can be directly removed from the outer casing, thus achieving quick disassembly of the filter, facilitating cleaning and maintenance, and avoiding the problem of conventional bolt fixing of the filter, where dust and oil stains corrode the bolts and make them difficult to disassemble and install. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the internal structure of a smoke control and exhaust device for fire protection engineering proposed in this utility model;
[0015] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0016] Figure 3 This is a cross-sectional view of the connection cover of a smoke exhaust device for fire protection engineering proposed in this utility model;
[0017] Figure 4 This utility model Figure 3 Enlarged view at point B in the middle;
[0018] Figure 5 This is a schematic diagram of the overall structure of a smoke control and exhaust device for fire protection engineering proposed in this utility model.
[0019] In the diagram: 1. Exhaust pipe; 2. Fixing cover; 3. Outer shell; 4. Fixing block; 5. Connecting cover; 6. Filter screen; 7. Fan; 8. Connecting block; 9. Slot; 10. Fixing frame; 11. Movable slot; 12. Control block; 13. Limiting block; 14. Adjusting block; 15. First spring; 16. Mounting slot; 17. Limiting slot; 18. Connecting slot; 19. Fixing slot; 20. Locking block; 21. Stop block; 22. Second spring. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Reference Figures 1-5 A smoke control device for fire protection engineering includes an exhaust pipe 1, a fixed cover 2 fixedly installed on the top of the exhaust pipe 1, an outer shell 3 provided in the fixed cover 2, a fixed block 4 fixedly installed on the top of the outer shell 3, connecting covers 5 provided at both ends of the outer shell 3, a filter screen 6 fixedly installed in the connecting cover 5, a fixed frame 10 fixedly installed on the left end inside the outer shell 3, and a fan 7 fixedly installed on the right side of the fixed frame 10.
[0024] In this embodiment, a movable groove 11 is provided on the top of the fixed cover 2 corresponding to the position of the fixed block 4. A control block 12 is provided in the movable groove 11. An installation groove 16 is provided on the inner wall of the movable groove 11. The two sides of the control block 12 can be movably engaged in the installation groove 16. A limit block 13 is movably installed in the middle of the control block 12. A limit groove 17 is provided on the fixed block 4 corresponding to the position of the limit block 13. The bottom of the limit block 13 can be engaged in the limit groove 17. By pushing the control block 12 to the left side of the movable groove 11, the limit block 13 inside the control block 12 will drive the fixed block 4 to move the outer shell 3 to the left. When the left side of the outer shell 3 is exposed from the fixed cover 2, the limit block 13 is pulled up by the adjusting block 14. At this time, the limit block 13 will be moved out of the limit groove 17. Then the outer shell 3 can be directly separated from the fixed cover 2 without the need for tools, which is very convenient.
[0025] An adjusting block 14 is fixedly installed on the top of the limiting block 13, and a first spring 15 is fixedly installed between the bottom of the adjusting block 14 and the top of the control block 12. The limiting block 13 will be automatically reset by the first spring 15.
[0026] In this embodiment, connecting blocks 8 are fixedly installed at both ends of the outer shell 3. The connecting blocks 8 have slots 9. The connecting cover 5 has a connecting groove 18 at the position corresponding to the connecting blocks 8. The connecting blocks 8 can be movably inserted into the connecting groove 18. The connecting cover 5 has a fixing groove 19 at the position corresponding to the slots 9. A locking block 20 is movably installed in the fixing groove 19. A stop block 21 is provided in the fixing groove 19. The stop block 21 is fixedly installed on the side wall of the locking block 20. A second spring 22 is fixedly installed between the bottom of the stop block 21 and the inner wall of the fixing groove 19. The bottom of the locking block 20 can be movably inserted into the slot 9. When the outer shell 3 is removed from the fixing cover 2, the outer side of the connecting cover 5 loses its blocking function. The second spring 22 will push the stop block 21 to move upward. The stop block 21 will drive the locking block 20 to move outward. At this time, the bottom of the locking block 20 will disengage from the slot 9. At this time, the connecting covers 5 and the filter screen 6 at both ends of the outer shell 3 can be directly removed from the outer shell 3 for easy cleaning and maintenance.
[0027] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When in use, by pushing the control block 12 to the left side of the movable groove 11, the limiting block 13 inside the control block 12 will drive the fixing block 4 to move the outer shell 3 to the left. When the left side of the outer shell 3 is exposed from the fixing cover 2, the limiting block 13 is pulled up by the adjusting block 14. At this time, the limiting block 13 will move out of the limiting groove 17, and then the outer shell 3 can be directly separated from the fixing cover 2 without the need for tools, which is very convenient.
[0028] When the outer casing 3 is removed from the fixed cover 2, the outer side of the connecting cover 5 loses its obstruction. The second spring 22 will push the stop block 21 to move upward, and the stop block 21 will drive the locking block 20 to move outward. At this time, the bottom of the locking block 20 will disengage from the locking groove 9, and the connecting covers 5 and the filter screen 6 at both ends of the outer casing 3 can be directly removed from the outer casing 3, thereby achieving the effect of convenient cleaning and maintenance.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A smoke control and exhaust device for fire protection engineering, comprising an exhaust pipe (1), characterized in that, A fixed cover (2) is fixedly installed on the top of the exhaust pipe (1). A shell (3) is provided in the fixed cover (2). A fixed block (4) is fixedly installed on the top of the shell (3). A connecting cover (5) is provided at both ends of the shell (3). A filter screen (6) is fixedly installed in the connecting cover (5). A fixed frame (10) is fixedly installed on the left end of the shell (3). A fan (7) is fixedly installed on the right side of the fixed frame (10).
2. The smoke control and exhaust device for fire protection engineering according to claim 1, characterized in that, The top of the fixed cover (2) is provided with a movable groove (11) corresponding to the position of the fixed block (4). A control block (12) is provided in the movable groove (11). An installation groove (16) is provided on the inner wall of the movable groove (11). The two sides of the control block (12) can be movably engaged in the installation groove (16). A limit block (13) is movably installed in the middle of the control block (12). A limit groove (17) is provided on the fixed block (4) corresponding to the position of the limit block (13). The bottom of the limit block (13) can be engaged in the limit groove (17).
3. A smoke control and exhaust device for fire protection engineering according to claim 2, characterized in that, An adjusting block (14) is fixedly installed on the top of the limiting block (13), and a first spring (15) is fixedly installed between the bottom of the adjusting block (14) and the top of the control block (12).
4. A smoke control and exhaust device for fire protection engineering according to claim 1, characterized in that, Connecting blocks (8) are fixedly installed at both ends of the outer shell (3). The connecting blocks (8) have slots (9) and the connecting cover (5) has a connecting groove (18) at the position corresponding to the connecting blocks (8). The connecting blocks (8) can be movably inserted into the connecting groove (18).
5. A smoke control and exhaust device for fire protection engineering according to claim 4, characterized in that, A fixing groove (19) is provided on the connecting cover (5) at the position corresponding to the slot (9). A locking block (20) is movably installed in the fixing groove (19). A stop block (21) is provided in the fixing groove (19). The stop block (21) is fixedly installed on the side wall of the locking block (20). A second spring (22) is fixedly installed between the bottom of the stop block (21) and the inner wall of the fixing groove (19).
6. A smoke control and exhaust device for fire protection engineering according to claim 5, characterized in that, The bottom of the card block (20) can be movably inserted into the card slot (9).