Axial-flow type fire-fighting smoke exhaust fan
By introducing vibration buffering devices and purification and treatment devices into the axial flow fire exhaust fan, the problem of easy blockage and inability to purify the fan is solved, and the working ability and practicality are improved.
Patent Information
- Application Number
- CN202420658644.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-01
AI Technical Summary
Existing axial flow fire-fighting smoke exhaust fans are prone to blockage of impurities and cannot assist in purifying the flue gas when needed, resulting in insufficient working capacity and practicality.
An axial-flow fire-fighting smoke exhaust fan including a vibration buffer device and a purification treatment device is designed to drive the grid grid to vibrate and prevent blockage through a vibrator and a connecting frame, and to assist in purification of the flue gas by using activated carbon and mesh barrel.
It effectively prevents grid grid blockage, reduces the impact of vibration on the surrounding area, improves the working ability of the fan, and improves the practicality of the fan through auxiliary purification.
Smart Images
Figure CN222185251U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fire protection, and in particular relates to an axial flow fire protection smoke exhaust fan. Background Art
[0002] Firefighting refers to the general term for eliminating, preventing and resolving man-made, natural and accidental disasters that people encounter in the course of their lives, work and studies.
[0003] Chinese patent application No. 202122235920.X discloses an axial flow fire smoke exhaust fan, including a protective shell, a fixing rod, an upper cover shell, a lower cover shell, a first servo motor and a fixing assembly, wherein the fixing rod is fixedly arranged in the protective shell, the upper cover shell and the lower cover shell are detachably arranged on the fixing rod, the upper cover shell corresponds to the lower cover shell, the fixing assembly is arranged on the upper cover shell, the first servo motor is arranged in the lower cover shell, the fixing assembly includes a limit column, a block, a fixing column, a spring, a second servo motor, a belt, a reel and a pull rope, the limit column is fixedly arranged on the upper cover shell, the lower cover shell is provided with a limit groove, the limit column corresponds to the limit groove, the limit column is arranged in a hollow cavity, the limit column is provided with an opening, and one corner of the block is hinged at the opening. The utility model belongs to the field of building smoke exhaust technology, specifically an axial flow fire smoke exhaust fan with simple structure, convenient use, good noise reduction effect, and easy maintenance.
[0004] 1. The above-mentioned disclosed patent has the problem that the grid is easily clogged by impurities and the vibration generated during operation is likely to cause adverse effects on the surroundings, thereby reducing the working capacity of the fan; 2. The above-mentioned disclosed patent has the problem that it is unable to assist in purifying the flue gas when necessary, thereby reducing the practicality of the fan. Utility Model Content
[0005] In order to solve the problems raised in the above background technology, the utility model provides an axial flow fire smoke exhaust fan, which has the characteristics of high working capacity and strong practicality.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an axial flow fire smoke exhaust fan, comprising a protective shell, a fan blade assembly is arranged on the inner side of the protective shell, the protective shell and the fan blade assembly are connected by a plurality of fixing rods, grid nets are arranged on both sides of the protective shell, a mounting plate is arranged under the protective shell, a first switch is installed above the protective shell, the protective shell and the two grid nets are connected by a vibration buffer device, and a purification treatment device is installed on one side of the vibration buffer device.
[0007] Preferably, the vibration buffer device includes a mounting frame, a buffer assembly, an elastic rubber frame, a connecting frame, and a vibrator. The mounting frame is arranged on the outside of the protective shell and between the two grid nets. The connecting frame is installed on the outside of the two grid nets. The connecting frame and the mounting frame are connected by two elastic rubber frames. A plurality of vibrators are installed above the connecting frame. The mounting frame and the mounting plate are connected by the buffer assembly.
[0008] Preferably, the vibration buffer device further comprises screws and a protective shell, the protective shell is connected to the mounting frame by two screws, and the protective shell is installed above the connecting frame and at a position outside the plurality of vibrators.
[0009] Preferably, the buffer assembly includes a damper and an elastic rubber tube, the elastic rubber tube is installed between the mounting frame and the mounting plate, and the damper is installed between the mounting frame and the mounting plate and at a position inside the elastic rubber tube.
[0010] Preferably, the purification treatment device comprises a support plate, activated carbon and a mesh cylinder, the support plate is installed on one side of the connecting frame, a plurality of mesh cylinders are installed below the support plate, and the inner side of the mesh cylinder is filled with activated carbon.
[0011] Preferably, the purification treatment device further comprises a threaded block, and a plurality of threaded blocks are installed on the support plate and located above the plurality of mesh cylinders through threads.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The utility model provides a vibration buffer device so that the fan can drive the two grid nets to vibrate when needed through the cooperation of structures such as a vibrator and a connecting frame, thereby preventing the two grid nets from being blocked by impurities. The fan can buffer the vibration generated during operation to a certain extent through the cooperation of a damper and an elastic rubber cylinder, thereby reducing the possibility of the vibration generated during operation causing adverse effects on the surroundings, thereby improving the working capacity of the fan.
[0014] 2. The utility model provides a purification treatment device so that the fan can perform certain auxiliary purification on the flue gas through the cooperation of activated carbon and mesh tube when necessary, thereby better meeting the working needs in different situations and improving the practicality of the fan. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the utility model;
[0016] Figure 2 It is a three-dimensional cutaway view of the utility model;
[0017] Figure 3 It is a three-dimensional cutaway view of the vibration buffer device of the utility model;
[0018] Figure 4 It is a three-dimensional cutaway view of the purification treatment device of the utility model.
[0019] In the figure: 1. protective shell; 2. fixing rod; 3. fan blade assembly; 4. vibration buffer device; 41. mounting frame; 42. buffer assembly; 421. damper; 422. elastic rubber tube; 43. screw; 44. elastic rubber frame; 45. connecting frame; 46. vibrator; 47. protective shell; 5. mounting plate; 6. grid; 7. purification treatment device; 71. support plate; 72. threaded block; 73. activated carbon; 74. mesh tube; 8. first switch. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example 1
[0022] See also Figure 1-4 The utility model provides the following technical solutions: an axial flow fire smoke exhaust fan, comprising a protective shell 1, a fan blade assembly 3 is arranged on the inner side of the protective shell 1, the protective shell 1 and the fan blade assembly 3 are connected by a plurality of fixing rods 2, grid nets 6 are arranged on both sides of the protective shell 1, a mounting plate 5 is arranged below the protective shell 1, a first switch 8 is installed above the protective shell 1, the protective shell 1 and the two grid nets 6 are connected by a vibration buffer device 4, and a purification treatment device 7 is installed on one side of the vibration buffer device 4.
[0023] Specifically, the vibration buffer device 4 includes a mounting frame 41, a buffer assembly 42, an elastic rubber frame 44, a connecting frame 45, and a vibrator 46. The mounting frame 41 is arranged on the outside of the protective shell 1 and between the two grid nets 6. The connecting frame 45 is installed on the outside of the two grid nets 6. The connecting frame 45 and the mounting frame 41 are connected by two elastic rubber frames 44. A plurality of vibrators 46 are installed above the connecting frame 45. The mounting frame 41 and the mounting plate 5 are connected by the buffer assembly 42.
[0024] By adopting the above technical solution, the fan can drive the two grid nets 6 to vibrate through the cooperation of structures such as the vibrator 46 and the connecting frame 45 when needed, thereby preventing the two grid nets 6 from being blocked by impurities.
[0025] Specifically, the vibration buffer device 4 further includes screws 43 and a protective shell 47 . The protective shell 1 is connected to the mounting frame 41 via two screws 43 . The protective shell 47 is installed above the connecting frame 45 and outside the plurality of vibrators 46 .
[0026] By adopting the above technical solution, the staff can assemble and disassemble the mounting frame 41 and other structures by using two screws 43 when necessary, and the fan can provide certain protection for the multiple vibrators 46 by using the protective shell 47.
[0027] Specifically, the buffer assembly 42 includes a damper 421 and an elastic rubber tube 422 . The elastic rubber tube 422 is installed between the mounting frame 41 and the mounting plate 5 . The damper 421 is installed between the mounting frame 41 and the mounting plate 5 and at a position inside the elastic rubber tube 422 .
[0028] By adopting the above technical solution, the fan can buffer the vibration generated during operation to a certain extent through the cooperation of the damper 421 and the elastic rubber tube 422, thereby reducing the possibility that the vibration generated during operation will cause adverse effects on the surroundings.
[0029] When this embodiment is used, when the fan is needed in fire fighting, the mounting plate 5 is installed in the working position by bolts, and the protective shell 1 is connected to the mounting frame 41 by two screws 43 in the vibration buffer device 4, and then the fan blade assembly 3 is started by the first switch 8, and each vibrator 46 is started. Under the action of the fan blade assembly 3, smoke enters the protective shell 1 through the grid net 6 on one side of the protective shell 1, and then is discharged from the grid net 6 on the other side of the protective shell 1, thereby working. Each vibrator 46 drives the two grid nets 6 to vibrate through the connecting frame 45, thereby preventing the two grid nets 6 from being blocked. The elastic rubber frame 44 can reduce the influence of the vibration generated by each vibrator 46 on the fan blade assembly 3 and other structures through elastic deformation, and the damper 421 in the buffer assembly 42 can cooperate with the elastic rubber tube 422 to buffer the vibration generated during work. The protective shell 47 plays a role in protecting each vibrator 46, and the fixing rod 2 plays a role in fixed connection.
[0030] Example 2
[0031] The difference between this embodiment and embodiment 1 is that the purification device 7 includes a support plate 71, activated carbon 73 and a mesh tube 74, the support plate 71 is installed on one side of the connecting frame 45, a plurality of mesh tubes 74 are installed below the support plate 71, and the inner side of the mesh tube 74 is filled with activated carbon 73.
[0032] By adopting the above technical solution, the fan can perform auxiliary purification of the flue gas to a certain extent through the cooperation of the activated carbon 73 and the mesh tube 74 when necessary, thereby better meeting the working needs in different situations.
[0033] Specifically, the purification device 7 further includes a threaded block 72 , and a plurality of threaded blocks 72 are installed on the support plate 71 and located above the plurality of mesh cylinders 74 through threads.
[0034] By adopting the above technical solution, the staff can unscrew the threaded block 72 when necessary, and then replace the activated carbon 73 in the mesh tube 74, thereby reducing the difficulty of replacing the activated carbon 73 and alleviating the labor burden of the staff.
[0035] When this embodiment is used, when it is necessary to perform certain auxiliary purification on the flue gas, the staff can unscrew the threaded blocks 72 on the support plate 71 in the purification treatment device 7, and then put enough activated carbon 73 into each mesh tube 74, and then install each threaded block 72 back to the original position through the thread. When the flue gas passes through each mesh tube 74, the activated carbon 73 can be used to perform auxiliary purification on the flue gas.
[0036] In the utility model, the structures and principles of the protective shell 1, the fixing rod 2, the fan blade assembly 3 composed of the upper cover shell, the lower cover shell, the first servo motor, the sound insulation cotton, the limiting column, the fixing assembly, the limiting groove, the circular through hole, the reel, the pull rope, the opening, the spring, the fan blade, the fixing column, the second switch, the card block, the second servo motor and the belt, and the first switch 8 have been disclosed in an axial flow fire smoke exhaust fan disclosed in Chinese patent application No. 202122235920.X. Its working principle is that when in use, first put the first servo motor into the upper cover shell and pass the output end of the first servo motor through the through hole, and then splice the upper cover shell with the lower cover shell. In this process, align the limiting column with the limiting groove and insert it into the limiting groove. Since the card block is arranged at an angle, when the limiting column enters the groove, the card block When the locking cam is in the closed position, the spring will push the locking cam into the closed position and the locking cam will release the locking cam, which will cause the locking cam to move downwards and into the closed position.
[0037] The structure and principle of the damper 421 in the utility model have been disclosed in a smart home washing machine shock absorbing device disclosed in Chinese patent application No. 201721446985.6. Its working principle consists of a piston and an oil tank, which is filled with oil. When the object moves, the piston moves in the oil, thereby consuming energy and slowing down the movement of the object.
[0038] The structure and principle of the vibrator 46 in the utility model have been disclosed in an easy-to-clean concrete mixing device disclosed in Chinese patent application No. 201821054815.8. Its working principle is composed of components such as springs, mass blocks, and motors. When the spring or mass block is subjected to external force from the motor, elastic deformation or displacement will occur, thereby generating vibration.
[0039] The working principle and use process of the utility model are as follows: when the fan is needed in fire fighting, the mounting plate 5 is installed at the working position by bolts, and the protective shell 1 is connected to the mounting frame 41 by two screws 43 in the vibration buffer device 4, and then the fan blade assembly 3 is started by the first switch 8, and each vibrator 46 is started. Under the action of the fan blade assembly 3, the smoke enters the protective shell 1 through the grid net 6 on one side of the protective shell 1, and then is discharged from the grid net 6 on the other side of the protective shell 1, so as to work. Each vibrator 46 drives the two grid nets 6 to vibrate through the connecting frame 45, so as to prevent the two grid nets 6 from being blocked. The elastic rubber frame 44 can reduce the vibration through elastic deformation. The vibrations generated by each vibrator 46 affect the fan blade assembly 3 and other structures, and the damper 421 in the buffer assembly 42 can cooperate with the elastic rubber tube 422 to buffer the vibrations generated during operation. The protective shell 47 protects each vibrator 46, and the fixing rod 2 fixes the connection. When it is necessary to perform auxiliary purification of the flue gas, the staff can unscrew the threaded blocks 72 on the support plate 71 in the purification device 7, and then put enough activated carbon 73 into each mesh tube 74, and then install each threaded block 72 back to its original position through the thread. When the flue gas passes through each mesh tube 74, the activated carbon 73 can be used to assist in the purification of the flue gas.
[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An axial flow fire smoke exhaust fan, comprising a protective shell, characterized in that: A fan blade assembly is arranged on the inner side of the protective shell, and the protective shell and the fan blade assembly are connected by a plurality of fixing rods, grid nets are arranged on both sides of the protective shell, a mounting plate is arranged under the protective shell, a first switch is installed on the top of the protective shell, the protective shell and the two grid nets are connected by a vibration buffer device, and a purification treatment device is installed on one side of the vibration buffer device.
2. The axial flow fire smoke exhaust fan according to claim 1, characterized in that: The vibration buffer device includes a mounting frame, a buffer assembly, an elastic rubber frame, a connecting frame, and a vibrator. The mounting frame is arranged on the outside of the protective shell and between the two grid nets. The connecting frame is installed on the outside of the two grid nets. The connecting frame and the mounting frame are connected by two elastic rubber frames. A plurality of vibrators are installed above the connecting frame. The mounting frame and the mounting plate are connected by the buffer assembly.
3. The axial flow fire smoke exhaust fan according to claim 2, characterized in that: The vibration buffer device also includes screws and a protective shell. The protective shell is connected to the mounting frame by two screws. The protective shell is installed above the connecting frame and at a position outside the multiple vibrators.
4. The axial flow fire smoke exhaust fan according to claim 2, characterized in that: The buffer assembly comprises a damper and an elastic rubber tube. The elastic rubber tube is installed between the mounting frame and the mounting plate. The damper is installed between the mounting frame and the mounting plate and at a position inside the elastic rubber tube.
5. The axial flow fire smoke exhaust fan according to claim 2, characterized in that: The purification treatment device comprises a support plate, activated carbon and a net cylinder. The support plate is installed on one side of the connecting frame, and a plurality of net cylinders are installed below the support plate. The inner side of the net cylinder is filled with activated carbon.
6. The axial flow fire smoke exhaust fan according to claim 5, characterized in that: The purification treatment device also includes a threaded block, and a plurality of threaded blocks are installed on the support plate and located above the plurality of net cylinders through threads.