Fire-fighting smoke exhaust fan

Abstract

The utility model relates to a fire-fighting smoke exhaust fan which is characterized in that filter screens are arranged at an air inlet of a shell and used for preventing or reducing interference or damage to a rotating fan in the shell caused by entering of external dust or impurities into the shell, and each filter screen is connected with the air inlet or an air outlet of the shell through a plurality of connecting assemblies; the connecting assembly is arranged to be convenient to connect and disassemble, so that the filter screen can be conveniently and rapidly installed on the shell or disassembled from the shell.

Description

Technical Field

[0001] The present application relates to the technical field of smoke exhaust fans, and in particular to fire smoke exhaust fans. Background Art

[0002] With the development of the times and the progress of society, our personal safety protection measures are also gradually improving. When a fire occurs in a high-rise building, smoke is one of the main reasons that hinder people from escaping and fire-fighting operations and lead to deaths. Modern high-rise civil buildings have many combustible decorations and furnishings. There are also quite a few high-rise buildings that use a large amount of plastic decorations, chemical fiber carpets and furniture filled with foam plastics. These combustibles will produce a large amount of toxic smoke and heat during the combustion process, and consume a lot of oxygen. In fire rescue, it is necessary to extract the indoor smoke, which requires the use of fire smoke exhaust fans.

[0003] The working environment of the existing smoke exhaust fans for fire fighting is a smoky and dusty workplace, and the main device used to block dust particles and other debris on the fan is the filter. The installation and removal process of the filter of the current smoke exhaust fans for fire fighting is time-consuming and labor-intensive, resulting in cumbersome removal of the filter for cleaning. Utility Model Content

[0004] Based on this, it is necessary to provide a fire smoke exhaust fan to address the problem that the installation and removal process of the filter of the traditional fire-fighting smoke exhaust fan is time-consuming and labor-intensive, resulting in cumbersome removal of the filter for cleaning.

[0005] The present application provides a fire smoke exhaust fan, comprising:

[0006] The housing is configured as a cylinder, one end of the housing is configured as an air inlet, and the other end of the housing is configured as an air outlet;

[0007] A motor is disposed in the housing;

[0008] A plurality of connecting rods are provided, each of which is fixedly provided on the motor and is also fixedly connected to the inner wall of the housing;

[0009] A fan is disposed in the housing, and the fan is fixedly connected to the motor;

[0010] The filter is provided in multiple forms, one filter is provided at the air inlet, and another filter is provided at the air outlet;

[0011] The connection components are arranged in multiple groups, each group is arranged in multiple groups, the air inlet is provided with a group of connection components, the air outlet is provided with a group of connection components, one end of the connection component is fixedly connected to the shell, and one end of the connection component is fixedly connected to the filter component.

[0012] The present application relates to a fire smoke exhaust fan, in which a filter is arranged at the air inlet of a casing to block or reduce the entry of dust or debris from the outside into the casing to interfere with or damage the fan rotating therein, and each filter is connected to the air inlet or outlet of the casing through a plurality of connecting components, and the connecting components are arranged to facilitate connection and disassembly, thereby making it convenient and quick to install the filter on or remove it from the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a fire smoke exhaust fan provided in one embodiment of the present application.

[0014] Figure 2 A schematic cross-sectional view of the connection between the housing and the filter screen of a fire smoke exhaust fan provided in one embodiment of the present application.

[0015] Figure 3 A schematic diagram showing the positional relationship between a positioning member and a connector in a fire smoke exhaust fan provided in an embodiment of the present application from one perspective.

[0016] Figure 4 A schematic diagram showing the positional relationship between a positioning member and a connector in a fire smoke exhaust fan provided in an embodiment of the present application from another perspective.

[0017] Figure 5 for Figure 2 Enlarged view of point a in the middle.

[0018] Figure 6 for Figure 3 Enlarged view of point b in the middle.

[0019] Figure 7 for Figure 4 Enlarged view of point c in the middle.

[0020] Figure 8 A schematic diagram of the positional relationship between a first limiting plate and a first limiting groove in a fire smoke exhaust fan provided in an embodiment of the present application.

[0021] Fig. 9 A schematic diagram of the structure of a drive disk in a fire smoke exhaust fan provided in one embodiment of the present application.

[0022] Fig.10 A schematic diagram of the positional relationship between a first card block and a second card block in a fire smoke exhaust fan provided in an embodiment of the present application.

[0023] Fig.11 A schematic diagram of the positional relationship between a first mating surface and a second mating surface in a fire smoke exhaust fan provided in an embodiment of the present application.

[0024] Reference numerals:

[0025] 11. housing; 111. air inlet; 112. air outlet; 12. motor; 13. connecting rod;

[0026] 14. fan; 15. connecting assembly; 151. positioning member; 151a. first positioning shell;

[0027] 151b, limiting member; 151c, driving member; 152, plug-in member; 152a, second positioning shell;

[0028] 152b, positioning rod; 152c, first return spring; 16, first movable cavity; 17, first limit plate;

[0029] 18. second limit plate; 19. second return spring; 20. drive disk; 201. first drive slot;

[0030] 202, second driving slot; 21, adapter shaft; 22, active disk; 23, first clamping block;

[0031] 24. second clamping block; 25. first limiting groove; 26. second limiting groove; 27. first inclined surface;

[0032] 28. Second inclined surface; 29. ​​First matching surface; 30. Second matching surface; 31. Filter screen. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment of the present application, the fire smoke exhaust fan includes a housing 11, a motor 12, a plurality of connecting rods 13, a fan 14, a plurality of filters 31 and a plurality of connecting components 15.

[0035] The housing 11 is configured to be cylindrical. One end of the housing 11 is configured to be an air inlet 111 , and the other end of the housing 11 is configured to be an air outlet 112 .

[0036] The motor 12 is disposed in the housing 11 .

[0037] The connecting rods 13 are provided in plurality and are all fixedly arranged on the motor 12. The connecting rods 13 are also fixedly connected to the inner wall of the housing 11.

[0038] The fan 14 is disposed in the housing 11 and is fixedly connected to the motor 12 .

[0039] The filter screen 31 is provided in plurality. The air inlet 111 is provided with a filter screen 31 , and the air outlet 112 is provided with another filter screen 31 .

[0040] The connecting assembly 15 is provided in plurality. The air inlet 111 is provided with a plurality of connecting assemblies 15. The air outlet 112 is provided with a plurality of connecting assemblies 15. One end of the connecting assembly 15 is fixedly connected to the housing 11. One end of the connecting assembly 15 is fixedly connected to the filter screen 31 assembly.

[0041] Specifically, the motor 12 is fixedly connected to the inside of the shell 11 through a plurality of connecting rods 13, and the fan 14 is fixedly connected to the power output end of the motor 12, and filters 31 are provided at the air inlet 111 and the air outlet 112 of the shell 11, and a plurality of connecting components 15 are provided on the outer circular surface of the shell 11, and the connecting components 15 are arranged close to the air inlet 111 and the air outlet 112, one end of the connecting component 15 is fixedly connected to the shell 11, and the other end of the connecting component 15 is fixedly connected to the filter 31.

[0042] In this embodiment, a filter 31 is provided through the air inlet 111 of the outer shell 11 to block or reduce external dust or debris from entering the outer shell 11 and causing interference or damage to the fan 14 rotating therein, and each filter 31 is connected to the air inlet 111 or the air outlet 112 of the outer shell 11 through a plurality of connecting components 15. The connecting components 15 are configured to facilitate connection and disassembly, thereby making it convenient and quick to install the filter 31 on or remove it from the outer shell 11.

[0043] like Figure 3 and Figure 4 As shown, in one embodiment of the present application, the connection assembly 15 includes a positioning member 151 and a plug-in member 152 .

[0044] The positioning member 151 is fixedly disposed on the outer circumferential surface of the housing 11. The positioning member 151 is disposed close to the air inlet 111 or the air outlet 112.

[0045] The plug-in connector 152 is fixedly disposed on the outer circumferential surface of the filter screen 31 . The plug-in connector 152 is inserted into the positioning member 151 .

[0046] In this embodiment, the filter 31 is fixedly installed on the outer circumference of the outer shell 11 by a positioning piece 151, and the plug-in piece 152 cooperating with the positioning piece 151 is fixedly installed on the outer circumference of the filter 31. The filter 31 is installed to the air inlet 111 or the air outlet 112 of the outer shell 11 through the connection between the positioning piece 151 and the plug-in piece 152.

[0047] like Figure 5As shown, in one embodiment of the present application, the positioning member 151 includes a first positioning shell 151a, a limiting member 151b and a driving member 151c.

[0048] The first positioning shell 151a is fixedly connected to the outer circumference of the housing 11. A first movable cavity 16 is disposed inside the first positioning shell 151a.

[0049] The limiting member 151 b is disposed in the first active cavity 16 .

[0050] The driving member 151c is rotatably disposed on the first positioning shell 151a. The limiting member 151b is inserted into the driving member 151c.

[0051] In this embodiment, the entire positioning member 151 is positioned by fixing the first positioning shell 151a on the outer circumference of the outer shell 11, and the limiting member 151b provided in the first active cavity 16 is used to lock the position of the connector 152 after it is inserted into the first active cavity 16, and the driving member 151c uses rotation to open the limiting member 151b and then contacts the limiting member 151b to lock the position of the connector 152.

[0052] like Figure 5 As shown, in one embodiment of the present application, the connector 152 includes a second positioning shell 152a, a positioning rod 152b and a first return spring 152c.

[0053] The second positioning shell 152a is fixedly connected to the outer circumference of the filter screen 31. The second positioning shell 152a is hollow inside.

[0054] The positioning rod 152b slides through the second positioning shell 152a. One end of the positioning rod 152b close to the first positioning shell 151a is inserted into the limiting member 151b.

[0055] The first return spring 152c is disposed in the second positioning shell 152a. The first return spring 152c is sleeved on the positioning rod 152b. One end of the first return spring 152c abuts against the second positioning shell 152a. The other end of the first return spring 152c abuts against the positioning rod 152b.

[0056] In this embodiment, the position of the entire connector 152 is fixed by fixing the second positioning shell 152a on the outer circumference of the filter 31, and the positioning rod 152b is slidably set on the second positioning shell 152a to adjust the position of the positioning rod 152b. The first return spring 152c is sleeved on the positioning rod 152b and one end of the first return spring 152c abuts against the second positioning shell 152a, and the other end of the first return spring 152c abuts against the positioning rod 152b, so that the positioning rod 152b has the function of automatic reset.

[0057] like Figure 7 As shown, in one embodiment of the present application, the limiting member 151 b includes a first limiting plate 17 , a second limiting plate 18 and a second return spring 19 .

[0058] The first limiting plate 17 is rotatably disposed in the first movable cavity 16 .

[0059] The second limit plate 18 is rotatably disposed in the first movable cavity 16. The positioning rod 152b is inserted between the first limit plate 17 and the second limit plate 18. The positioning rod 152b abuts against the first limit plate 17. The positioning rod 152b also abuts against the second limit plate 18.

[0060] The second return spring 19 is disposed between the first limit plate 17 and the second limit plate 18. One end of the second return spring 19 is fixedly connected to the first limit plate 17. The other end of the second return spring 19 is fixedly connected to the second limit plate 18.

[0061] In this embodiment, the inserted positioning rod 152b is stably fixed in position by rotating the first limit plate 17 and the second limit plate 18, and the second return spring 19 between the first limit plate 17 and the second limit plate 18 is used to provide a return force for the first limit plate 17 and the second limit plate 18. When the positioning member 151 and the connector 152 are connected, the positioning rod 152b needs to be manually pressed so that the positioning rod 152b can open the first limit plate 17 and the second limit plate 18 until the first limit plate 17 and the second limit plate 18 clamp the positioning rod 152b, thereby limiting the positioning rod 152b from retracting. When the first limit plate 17 and the second limit plate 18 are opened, the positioning rod 152b will automatically break away from the restriction of the first limit plate 17 and the second limit plate 18 under the elastic force of the first return spring 152c.

[0062] like Figure 6 As shown, in one embodiment of the present application, the driving member 151c includes a driving disk 20, a transfer shaft 21 and an active disk 22.

[0063] The driving disk 20 is disposed in the first movable cavity 16. The first limiting plate 17 is slidably inserted into the driving disk 20. The second limiting plate 18 is slidably inserted into the driving disk 20.

[0064] The adapter shaft 21 is rotatably disposed on the first positioning shell 151a. The adapter shaft 21 is disposed between the first limiting plate 17 and the second limiting plate 18. One end of the adapter shaft 21 is inserted into the first active cavity 16. One end of the adapter shaft 21 inserted into the first active cavity 16 is fixedly connected to the driving disk 20.

[0065] The active disk 22 is disposed outside the first positioning shell 151 a. The other end of the adapter shaft 21 is fixedly connected to the active disk 22 .

[0066] In this embodiment, a driving disk 20 is arranged in the first active cavity 16, and the first limit plate 17 and the second limit plate 18 are both inserted into the driving disk 20, and then the driving disk 20 is connected to the active disk 22 outside the first positioning shell 151a through the rotating adapter shaft 21. While the active disk 22 is rotating, the driving disk 20 is driven to rotate through the adapter shaft 21, thereby driving the first limit plate 17 and the second limit plate 18 to rotate in opposite directions, thereby contacting the first limit plate 17 and the second limit plate 18 to limit the positioning rod 152b.

[0067] like Figure 8 and Fig. 9 As shown, in one embodiment of the present application, the driving disk 20 is provided with an arc-shaped first driving groove 201 and a second driving groove 202. The first limiting plate 17 is inserted into the first driving groove 201. The second limiting plate 18 is inserted into the second driving groove 202.

[0068] In this embodiment, an arc-shaped first driving groove 201 and a second driving groove 202 are provided on the driving disk 20. The first driving groove 201 cooperates with the first limiting plate 17, and the second driving groove 202 cooperates with the second limiting plate 18, so that when the driving disk 20 rotates, the first limiting plate 17 and the second limiting plate 18 are driven to rotate in opposite directions.

[0069] like Fig.10 As shown, in one embodiment of the present application, a first clamping block 23 is fixed on the first limiting plate 17. A second clamping block 24 is fixed on the second limiting plate 18. A first limiting groove 25 and a second limiting groove 26 are provided at one end of the positioning rod 152b inserted into the first movable cavity 16. The first limiting groove 25 is provided on a side close to the first limiting plate 17. The second limiting groove 26 is provided on a side close to the second limiting plate 18. The first clamping block 23 is inserted into the first limiting groove 25. The second clamping block 24 is inserted into the second limiting groove 26.

[0070] In this embodiment, a first clamping block 23 is provided on the first limiting plate 17, a first limiting groove 25 is provided on the positioning rod 152b to cooperate with the first clamping block 23, a second clamping block 24 is provided on the second limiting plate 18, and a second limiting groove 26 is provided on the positioning rod 152b to cooperate with the second clamping block 24, so that when the positioning rod 152b is pushed into the first active cavity 16, the first clamping block 23 on the first limiting plate 17 and the second clamping block 24 on the second limiting plate 18 will be respectively inserted into the first limiting groove 25 and the second limiting groove 26 on the positioning rod 152b to limit the position of the positioning rod 152b.

[0071] like Fig.10 and Fig.11 As shown, in one embodiment of the present application, a first inclined surface 27 and a second inclined surface 28 are provided on a side of the positioning rod 152b close to the second return spring 19. The first inclined surface 27 is provided on a side close to the first limit plate 17. The second inclined surface 28 is provided on a side close to the second limit plate 18. A first mating surface 29 is provided on the first clamping block 23. The first inclined surface 27 is mated with the first mating surface 29. A second mating surface 30 is provided on the second clamping block 24. The second inclined surface 28 is mated with the second mating surface 30.

[0072] In this embodiment, a first inclined surface 27 and a second inclined surface 28 are provided on the end surface of the positioning rod 152b close to the second return spring 19, and a first mating surface 29 mating with the first inclined surface 27 is provided on the first clamping block 23, and a second mating surface 30 mating with the second inclined surface 28 is provided on the second clamping block 24, so that when the positioning rod 152b enters between the first limiting plate 17 and the second limiting plate 18, the first inclined surface 27 slidably cooperates with the first mating surface 29, and the second inclined surface 28 slidably cooperates with the second mating surface 30, thereby helping the first limiting plate 17 and the second limiting plate 18 to open more smoothly.

[0073] like Figure 6 As shown, in one embodiment of the present application, the adapter shaft 21 is disposed between the second return spring 19 and the positioning rod 152b.

[0074] The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A fire smoke exhaust fan, characterized in that: The fire smoke exhaust fan comprises: The housing is configured as a cylinder, one end of the housing is configured as an air inlet, and the other end of the housing is configured as an air outlet; A motor is disposed in the housing; A plurality of connecting rods are provided, each of which is fixedly provided on the motor, and each of which is also fixedly connected to the inner wall of the housing; A fan is disposed in the housing, and the fan is fixedly connected to the motor; The filter screen is provided in multiple forms, the air inlet is provided with at least one filter screen, and the air outlet is provided with at least one filter screen; The connecting components are arranged in plurality, the air inlet is provided with a plurality of connecting components, the air outlet is provided with a plurality of connecting components, one end of the connecting component is fixedly connected to the shell, and one end of the connecting component is fixedly connected to the filter.

2. The fire smoke exhaust fan according to claim 1, characterized in that: The connection component comprises: A positioning member, fixedly disposed on the outer circumferential surface of the housing, the positioning member being disposed close to the air inlet or the air outlet; The plug-in connector is fixedly arranged on the outer circumferential surface of the filter screen, and the plug-in connector is inserted into the positioning member.

3. The fire smoke exhaust fan according to claim 2, characterized in that: The positioning member comprises: A first positioning shell, fixedly connected to the outer circumference of the outer shell, wherein a first movable cavity is provided inside the first positioning shell; A limiting member, disposed in the first movable cavity; The driving member is rotatably disposed on the first positioning shell, and the limiting member is inserted into the driving member.

4. The fire smoke exhaust fan according to claim 3, characterized in that: The plug-in connector comprises: A second positioning shell is fixedly connected to the outer circumference of the filter screen, and the interior of the second positioning shell is hollow; A positioning rod, slidingly passing through the second positioning shell, wherein an end of the positioning rod close to the first positioning shell is inserted into the limiting member; The first return spring is arranged in the second positioning shell. The first return spring is sleeved on the positioning rod. One end of the first return spring abuts against the second positioning shell, and the other end of the first return spring abuts against the positioning rod.

5. The fire smoke exhaust fan according to claim 4, characterized in that: The limiting member comprises: A first limiting plate, rotatably disposed in the first movable cavity; A second limiting plate is rotatably disposed in the first movable cavity, the positioning rod is inserted between the first limiting plate and the second limiting plate, the positioning rod abuts against the first limiting plate, and the positioning rod also abuts against the second limiting plate; The second return spring is arranged between the first limit plate and the second limit plate, one end of the second return spring is fixedly connected to the first limit plate, and the other end of the second return spring is fixedly connected to the second limit plate.

6. The fire smoke exhaust fan according to claim 5, characterized in that: The driving member comprises: A driving disk is arranged in the first movable cavity, the first limiting plate is slidably inserted into the driving disk, and the second limiting plate is slidably inserted into the driving disk; A transfer shaft is rotatably disposed on the first positioning shell, the transfer shaft is disposed between the first limiting plate and the second limiting plate, one end of the transfer shaft is inserted into the first active cavity, and one end of the transfer shaft inserted into the first active cavity is fixedly connected to the driving disk; The active disk is arranged outside the first positioning shell, and the other end of the transfer shaft is fixedly connected to the active disk.

7. The fire smoke exhaust fan according to claim 6, characterized in that: The driving disk is provided with an arc-shaped first driving groove and a second driving groove, the first limiting plate is inserted into the first driving groove, and the second limiting plate is inserted into the second driving groove.

8. The fire smoke exhaust fan according to claim 7, characterized in that: A first clamping block is fixed on the first limiting plate, and a second clamping block is fixed on the second limiting plate. A first limiting groove and a second limiting groove are provided at one end of the positioning rod inserted into the first movable cavity. The first limiting groove is provided on a side close to the first limiting plate, and the second limiting groove is provided on a side close to the second limiting plate. The first clamping block is inserted into the first limiting groove, and the second clamping block is inserted into the second limiting groove.

9. The fire smoke exhaust fan according to claim 8, characterized in that: The first inclined surface and the second inclined surface are provided on the side of the positioning rod close to the second return spring, the first inclined surface is provided on the side close to the first limiting plate, the second inclined surface is provided on the side close to the second limiting plate, the first clamping block is provided with a first mating surface, the first inclined surface cooperates with the first mating surface, the second clamping block is provided with a second mating surface, the second inclined surface cooperates with the second mating surface.

10. The fire smoke exhaust fan according to claim 9, characterized in that: The adapter shaft is arranged between the second return spring and the positioning rod.

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