A new multifunctional filter ventilation device
By integrating multifunctional components and optimizing the design, the problems of large size, heavy weight, high noise and low efficiency of the filtration and ventilation device have been solved, realizing the miniaturization, lightweight and efficient operation of the device, and providing convenient replacement and noise reduction functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI XINHUA CHEM
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-14
Smart Images

Figure CN224498660U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of filtration and ventilation devices, and specifically relates to a novel multifunctional filtration and ventilation device. Background Technology
[0002] Ventilation systems primarily remove bioaerosols, chemical agents, and radioactive dust from the outside air in small spaces, ensuring the safety of personnel and equipment within the protected area. Existing ventilation systems are widely used in vehicles, fortifications, field applications, subways, and other locations, but they have the following drawbacks: a) These systems integrate only ordinary filters, fans, valves, controllers, and dust collectors, lacking failure alarm functions. The system requires replacement after each practical test, resulting in low efficiency. b) After prolonged use, the fine filtration unit may experience excessive resistance, leading to insufficient airflow. The lack of over-resistance alarms prevents timely filter replacement. c) Existing ventilation systems integrate multiple components, resulting in large dimensions and heavy weight. d) Filters are typically secured with multiple bolts, hindering quick replacement. e) Electrical connectors in ventilation systems generally lack rainproof design or have protruding rainproof features, increasing the size and weight of the device. f) Ventilation and air filtration devices generally generate high noise levels, and there are no effective noise reduction measures. Utility Model Content
[0003] The purpose of this invention is to provide a new type of multifunctional filtration and ventilation device to solve the technical problems of excessive size and weight of existing devices due to the arrangement of multiple components.
[0004] This utility model is achieved using the following technical solution:
[0005] A novel multifunctional filtration and ventilation device includes a housing and an air inlet device. A dust removal device is connected to the air inlet device from the outside to the inside of the housing. The dust removal device is installed inside the housing. The dust removal port of the dust removal device is connected to the dust outlet of the air inlet device. The dust removal device is connected to an airflow measuring device. The airflow measuring device is connected to a booster fan. The air outlet of the booster fan is connected to a fan interface. The fan interface is connected to a conversion device. The conversion device is connected to a filter absorber. The filter absorber is connected to an air outlet device. The air outlet device faces the device's air outlet, which is located on the ground of the housing. The top surface of the housing is a removable cover. Power and communication connectors are provided on the sides of the housing.
[0006] During application, the power supply cable and communication cable are connected to the power supply connector and communication connector. When there is no polluted air outside the small space, the filtration and ventilation device can be activated by the external controller for cleaning and ventilation. At this time, the controller controls the filtration and ventilation device to open the air inlet device, switch the conversion device to the clean port, and close the air outlet device. Outside air passes through the air inlet device, dust removal device, air volume measurement device, booster fan, and conversion device in sequence. It enters the housing through the clean port of the conversion device and enters the small space through the air outlet of the housing. At the same time, when the outside air enters the housing, most of the dust is removed by the dust removal device and the dust is discharged through the dust outlet of the air inlet device. The power supply connector includes power supply connector 1 and power supply connector 2. Power supply connector 1 is a dedicated fan power supply connector with a detachable cover design, which makes it easy to replace the filter absorber after removing the cover.
[0007] More preferably, the inside of the housing is lined with sound-insulating material, and the air outlet of the device is circular.
[0008] More preferably, the air inlet device is bolted to flange one, and a rubber gasket is provided between the air inlet device and flange one interface; the cover plate is bolted to flange two, and a rubber gasket is provided between the cover plate and flange two.
[0009] More preferably, the air inlet device and the dust removal device are connected by bolts, and a rubber gasket is provided between the interfaces of the air inlet device and the dust removal device. The dust removal device and the air volume measuring device are connected by bolts, and a rubber gasket is provided between the interfaces of the dust removal device and the air volume measuring device. The booster fan and the air volume measuring device are connected by bolts, and a rubber gasket is provided between the booster fan and the air volume measuring device. The booster fan outlet is connected to the fan interface by bolts, and a rubber gasket is provided between the booster fan outlet and the fan interface. The conversion device connects the air inlet of the conversion device and the fan interface through a hose and a hose clamp. The filter port of the conversion device is connected to the air inlet hose through an elbow, a connecting pipe, and a hose, thereby increasing the airtightness of the device.
[0010] More preferably, the dust removal port of the dust removal device and the dust discharge port of the air inlet device are connected by a 90-degree elbow and a connecting hose.
[0011] More preferably, the booster fan is bolted to mounting base one, the conversion device is bolted to mounting base two, and the filter absorber is clamped to mounting base three.
[0012] More preferably, the air inlet end of the filter absorber is provided with an air inlet pipe, a rubber gasket is provided between the air inlet end of the filter absorber and the interface of the air inlet pipe, and a rubber gasket is provided between the air outlet end of the filter absorber and the air outlet device.
[0013] More preferably, the power supply connector and the communication connector are installed inside the housing via mounting bracket five.
[0014] More preferably, the side of the housing has a recessed space, and the power supply connector and communication connector are installed in the recessed space. This recessed space design achieves rain protection without significantly increasing the weight of the housing.
[0015] More preferably, the filter absorber is equipped with a resistance over-limit module, which implements resistance over-limit alarm and failure alarm. The resistance over-limit module collects the operating status of the filter absorber and transmits it to an external controller, which determines whether a resistance over-limit alarm or a failure alarm is needed based on a threshold.
[0016] This utility model is applicable to a novel air filtration and ventilation device with cleaning and filtration functions for use in small spaces such as driver's cabs and container cabins. The air filtration and ventilation device has functions such as automatic opening and closing of air inlets and outlets, dust removal, air volume measurement, resistance over-limit alarm, filter absorber failure alarm, and easy replacement of filter absorbers. At the same time, the electrical connector interface is designed to be rainproof, and the air filtration and ventilation device is designed to reduce noise. Attached Figure Description
[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a diagram showing the overall structure of the present invention.
[0020] Figure 2 This diagram shows the shell structure of the present invention.
[0021] In the diagram: 1-Power supply connector 1, 2-Power supply connector 2, 3-Communication connector, 4-Air outlet, 5-Air inlet device, 6-Dust removal device, 7-Air volume measurement device, 8-Booster fan, 9-Conversion device, 10-Handle, 11-Housing, 12-Mounting base 4, 13-Sound insulation material, 14-Cover plate, 15-Filter absorber, 16-Clamp, 17-Air outlet device, 51-Flange 1, 18-Mounting base 5, 81-Mounting base 1, 101-Gasket, 111-Side plate, 91-Mounting base 2, 151-Mounting base 3, 141-Flange 2. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of this utility model can be combined with each other.
[0023] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.
[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Example
[0026] A novel multifunctional filtration and ventilation device includes a housing 11 and an air inlet device 5. The air inlet device 5 is connected to a dust removal device 6 from the outside of the housing 11 to the inside of the housing 11. The dust removal device 6 is installed inside the housing 11. The dust removal port of the dust removal device 6 is connected to the dust discharge port of the air inlet device 5. The dust removal device 6 is connected to an air volume measuring device 7. The air volume measuring device 7 is connected to a booster fan 8. The air outlet 4 of the booster fan 8 is connected to a fan interface. The fan interface is connected to a conversion device 9. The conversion device 9 is connected to a filter absorber 15. The filter absorber 15 is connected to an air outlet device 17. The air outlet device 17 is directly opposite the air outlet 4 of the device. The air outlet 4 of the device is located on the ground of the housing 11. The top surface of the housing 11 is a removable cover plate 14. The side of the housing 11 is provided with a power supply connector and a communication connector 3.
[0027] The inside of the housing 11 is lined with sound insulation material 13, and the air outlet 4 of the device is circular.
[0028] The air inlet device 5 is bolted to flange 51, and a rubber gasket is provided between the air inlet device 5 and flange 51. The cover plate 14 is bolted to flange 141, and a rubber gasket is provided between the cover plate 14 and flange 141. It should be noted that flange 51 is installed inside the housing 11, air inlet device 5 is installed outside the housing 11, flange 141 is fixed to the top of the housing 11, and cover plate 14 is installed on the upper side of flange 141.
[0029] The dust removal port of the dust removal device 6 is connected to the dust discharge port of the air inlet device 5 via a 90-degree elbow and a connecting hose.
[0030] The booster fan 8 is bolted to mounting base 1 81, the conversion device 9 is bolted to mounting base 2 91, and the filter absorber 15 is mounted to mounting base 3 151 by clamp 16.
[0031] An air inlet pipe is provided at the air inlet end of the filter absorber 15, and a rubber gasket is provided between the air inlet end of the filter absorber 15 and the interface of the air inlet pipe. A rubber gasket is provided between the air outlet 4 end of the filter absorber 15 and the air outlet device 17.
[0032] The power supply connector and communication connector 3 are installed inside the housing 11 via mounting bracket 5 18.
[0033] The housing 11 has a recessed space on its side, and the power supply connector and communication connector 3 are installed in the recessed space.
[0034] The filter absorber 15 is equipped with a resistance over-limit module, which realizes resistance over-limit alarm and failure alarm.
[0035] Finally, connect the power supply cables and communication cables of each component, and install the aviation plug and cover plate 14.
[0036] The working principle is as follows:
[0037] During the assembly of the filtration and ventilation device, first, sound insulation material is pasted inside the housing 11. Then, the air inlet device 5 is installed to the flange 51 using six M8 high-strength bolts. To ensure the airtightness of the housing 11, a rubber gasket is added to the air inlet device 5 during installation. Next, the dust removal device 6 is connected to the air inlet device 5 using six M8 high-strength bolts, with a rubber gasket in the middle of the interface. The dust removal port of the dust removal device 6 is connected to the dust discharge port of the air inlet device 5 using two 90-degree elbows and connecting hoses. The air volume measuring device 7 is connected to the dust removal device 6 using six M8 high-strength bolts, with a rubber gasket in the middle of the interface. The booster fan 8 is connected to the air volume measuring device 7 using six M8 high-strength bolts, with a rubber gasket in the middle of the interface. The booster fan 8 is connected to the air volume measuring device 7 using four M8 high-strength bolts. Bolts are installed to the fan mounting base; six M8 high-strength bolts are used to connect the fan interface at the fan outlet 4, with a rubber gasket in the middle; the conversion device 9 is installed to the conversion device 9 mounting base using four M8 high-strength bolts, and the air inlet of the conversion device 9 and the fan interface are connected using silicone tubing and stainless steel hose clamps; an air inlet rubber gasket and an air inlet connecting pipe are installed at the air inlet end of the filter absorber 15, and an air outlet 4 rubber gasket and an air outlet device 17 are installed at the air outlet 4 end of the filter absorber 15. After assembly, the filter absorber 15 is installed to the filter absorber 15 mounting base using clamps 16. After installation, the air inlet connecting pipe is connected to the filter port of the conversion device 9 using elbows, connecting pipes, and silicone tubing; finally, the power supply cables and communication cables of each component are connected, and the aviation plug and cover plate 14 are installed.
[0038] The usage process is as follows:
[0039] When there is no polluted air outside the small space, the filtration and ventilation device can be activated by the controller inside the small space for clean ventilation. At this time, the filtration and ventilation device opens the air inlet device 5, switches the conversion device 9 to the clean port, and closes the air outlet device 17. Outside air passes through the air inlet device 5, dust removal device 6, air volume measurement device 7, booster fan 8, and conversion device 9 in sequence. It enters the housing 11 through the clean port of the conversion device 9 and enters the small space through the air outlet 4 of the housing 11. At the same time, when the outside air enters the housing 11, most of the dust is removed at the dust removal device 6 and the dust is discharged through the dust outlet of the air inlet device 5.
[0040] When there is polluted air outside the small space, the filtration and ventilation device can be activated by the controller inside the small space. At this time, the air inlet device 5 and the conversion device 9 are opened to switch to the filtration port, and the air outlet device 17 is opened. Outside air passes through the air inlet device 5, the dust removal device 6, the air volume measurement device 7, the booster fan 8, the conversion device 9, the filter absorber 15, and the air outlet device 17 in sequence. Finally, clean air enters the housing 11 and is introduced into the small space through the air outlet 4 of the housing 11. At the same time, most of the dust is removed at the dust removal device 6 and the dust is discharged through the dust outlet of the air inlet device 5.
[0041] When the air filtration device experiences an over-limit resistance alarm or a failure alarm, shut down the device for decontamination and biological inactivation. Then, remove the hexagonal countersunk screws on the 18 covers 14, open the clamps 16, remove the filter absorber 15 for replacement, and then reassemble the filter absorber 15 into its original position.
[0042] The air inlet device 5 is bolted to the dust removal device 6. A rubber gasket is provided between the interfaces of the air inlet device 5 and the dust removal device 6. The dust removal device 6 is bolted to the air volume measuring device 7. A rubber gasket is provided between the interfaces of the dust removal device 6 and the air volume measuring device 7. The booster fan 8 is bolted to the air volume measuring device 7. A rubber gasket is provided between the structures of the booster fan 8 and the air volume measuring device 7. The air outlet 4 of the booster fan 8 is bolted to the fan interface. A rubber gasket is provided between the air outlet 4 of the booster fan 8 and the fan interface. The conversion device 9 is connected to the air inlet and the fan interface through a hose and a hose clamp. The filter port of the conversion device 9 is connected to the air inlet hose through an elbow, a connecting pipe, and a hose.
[0043] Handles 10 are provided on the front and rear sides of the outer side of the housing 11 for easy movement of the device. Mounting bases 12 are provided on the left and right sides of the outer side of the housing 11 for easy hanging of the device. The mounting bases 12 are L-shaped and are installed on the side plate 111 near the bottom plate of the housing 11. In actual use, the side plates 111 are very thin to reduce the weight of the device. To facilitate the installation of the handles 10, gaskets 101 are also fixedly installed on the side plates 111.
[0044] It should be noted that, since air volume is crucial to the working status of the device, an air volume measuring device is included in the technical solution, and the data measured by the air volume measuring device is transmitted to an external controller.
[0045] This utility model integrates components such as an air inlet device 5, a dust removal device 6, an air volume measuring device 7, a booster fan 8, a conversion device 9, a filter absorber 15, and an air outlet device 17. Through a rational layout of the air duct and a compact design of each component, the size and weight of the filtration ventilation device are reduced, achieving multifunctionality, miniaturization, and lightweight design. Simultaneously, sound insulation material is integrated inside the housing 11 of the filtration ventilation device to reduce noise and effectively improve the device's ergonomic performance.
[0046] This utility model integrates functions such as automatic opening and closing of air inlet and outlet 4, over-resistance alarm, and filter absorber 15 failure alarm in the filtration ventilation device. It features a convenient replaceable filter absorber 15 design, rainproof and noise reduction design, and miniaturized and lightweight design.
[0047] This invention can be used to establish a clean and safe overpressure environment in small spaces such as driver's cabs and modular cabins, and can provide a safe working environment for personnel and equipment inside small spaces in nuclear, biological and chemical contamination environments.
[0048] This utility model has the following advantages:
[0049] a) The filtration and ventilation device integrates a failure alarm function. After a failure alarm is triggered, the filter absorber 15 is replaced, which improves the efficiency of the device.
[0050] b) The filtration and ventilation device integrates a resistance over-limit alarm. When the resistance reaches a certain value, an alarm will be triggered in time to prompt the replacement of the filter absorber 15.
[0051] c) The filtration and ventilation device is designed in a compact manner, while the housing 11 is used as the air outlet 4 for filtration and ventilation of clean air, which greatly saves space and reduces weight.
[0052] d) The filter absorber 15 in the filtration ventilation device is fastened with clamps 16, and a handle 10 is designed on the installation side of the filter absorber 15 to facilitate the removal of the cover plate 14 and the replacement of the filter absorber 15.
[0053] e) The electrical connector interface of the filtration and ventilation device is designed with a concave opening, which reduces the size and weight of the device.
[0054] f) The housing 11 of the filtration and ventilation device is designed with sound insulation material 13 inside, which effectively reduces the noise of the device.
[0055] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.
Claims
1. A novel multifunctional filtration and ventilation device, characterized in that: The device includes a housing (11) and an air inlet device (5). The air inlet device (5) is connected to a dust removal device (6) from the outside of the housing (11) to the inside of the housing (11). The dust removal device (6) is installed inside the housing (11). The dust removal port of the dust removal device (6) is connected to the dust discharge port of the air inlet device (5). The dust removal device (6) is connected to an air volume measuring device (7). The air volume measuring device (7) is connected to a booster fan (8). The booster fan (8) has an air outlet (4). A fan interface is connected, and a conversion device (9) is connected to the fan interface. A filter absorber (15) is connected to the conversion device (9). An air outlet device (17) is connected to the filter absorber (15). The air outlet device (17) is directly opposite the air outlet (4) of the device. The air outlet (4) of the device is located on the ground of the housing (11). The top surface of the housing (11) is a removable cover plate (14). Power supply connectors and communication connectors (3) are provided on the side of the housing (11).
2. The novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The housing (11) is lined with sound-insulating material (13), and the air outlet (4) of the device is circular.
3. The novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The air inlet device (5) is bolted to flange one (51), and a rubber gasket is provided between the air inlet device (5) and flange one (51). The cover plate (14) is bolted to flange two (141), and a rubber gasket is provided between the cover plate (14) and flange two (141).
4. The novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The air inlet device (5) and the dust removal device (6) are connected by bolts. A rubber gasket is provided between the interfaces of the air inlet device (5) and the dust removal device (6). The dust removal device (6) and the air volume measuring device (7) are connected by bolts. A rubber gasket is provided between the interfaces of the dust removal device (6) and the air volume measuring device (7). The booster fan (8) and the air volume measuring device (7) are connected by bolts. A rubber gasket is provided between the structures of the booster fan (8) and the air volume measuring device (7). The air outlet (4) of the booster fan (8) is connected to the fan interface by bolts. A rubber gasket is provided between the air outlet (4) of the booster fan (8) and the fan interface. The conversion device (9) is connected to the air inlet and the fan interface by a hose and a hose clamp. The filter port of the conversion device (9) is connected to the air inlet hose by an elbow, a connecting pipe and a hose.
5. A novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The dust removal port of the dust removal device (6) is connected to the dust discharge port of the air inlet device (5) through a 90-degree elbow and a connecting hose.
6. The novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The booster fan (8) is bolted to mounting base one (81), the conversion device (9) is bolted to mounting base two (91), and the filter absorber (15) is mounted to mounting base three (151) by clamps (16).
7. A novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The filter absorber (15) is provided with an air inlet pipe at the air inlet end, and a rubber gasket is provided between the air inlet end of the filter absorber (15) and the interface of the air inlet pipe. A rubber gasket is provided between the air outlet (4) end of the filter absorber (15) and the air outlet device (17).
8. A novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The power supply connector and communication connector (3) are installed inside the housing (11) via mounting bracket five (18).
9. A novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The housing (11) has a recessed space on its side, and the power supply connector and communication connector (3) are installed in the recessed space.
10. A novel multifunctional filtration and ventilation device according to claim 1, characterized in that: The filter absorber (15) is equipped with a resistance over-limit module, which realizes resistance over-limit alarm and failure alarm.