Air generator with multiple filtering mechanism

Through multiple filtration mechanisms and an easy-to-disassemble design, the problem of purifying large-diameter dust and insects in air generators has been solved, improving the purification effect and ease of maintenance of the equipment.

CN224308043UActive Publication Date: 2026-06-02TENGZHOU RUIPU ANALYTICAL INSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TENGZHOU RUIPU ANALYTICAL INSTR CO LTD
Filing Date
2025-05-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing air generators lack mechanisms for specifically filtering large-diameter dust and insects, and existing filter plates are difficult to replace, affecting equipment maintenance efficiency.

Method used

The design incorporates a multi-stage filtration system, including a primary filter plate and a secondary filter consisting of activated carbon and a HEPA filter. It also features a magnetic and limiting block structure for easy disassembly and quick replacement.

Benefits of technology

It achieves comprehensive purification of large-particle dust and flying insects, improving the convenience and efficiency of equipment maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224308043U_ABST
    Figure CN224308043U_ABST
Patent Text Reader

Abstract

The utility model discloses an air generator with multiple filtering mechanism, the utility model relates to air generator technical field, including equipment main part, the one end upside of equipment main part is provided with the air inlet, first filter piece, first filter piece is first filtering mechanism, first filter piece is installed in the groove of equipment main body and is set up, second filter piece, second filter piece is second filtering mechanism, second filter piece is installed in the groove of equipment main body top and is set up. This air generator with multiple filtering mechanism, in the air inlet place, through the filter screen board to the large particle size fly ash, fly insect and so on foreign matter carry out first filtering, then utilize active carbon and HEPA filter screen and constitute second filter piece, carry out secondary filtration to the TVOC and small particle size fly ash in the air, multilayer level's filtering structure, can more comprehensive, pertinence purifies the air.
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Description

Technical Field

[0001] This utility model relates to the field of air generator technology, specifically to an air generator with multiple filtration mechanisms. Background Technology

[0002] An air generator compresses air (or other gases) using a compressor and stores it in an air tank for use. It mainly consists of a compressor, an air tank, a filter, and a drying chamber. The air generator purifies natural air, removing moisture, oil, and impurities, and outputs stable, clean air through a pressure stabilizing device. It features stable output pressure and low noise, making it an ideal air source to replace high-pressure air cylinders.

[0003] The utility model patent with authorization announcement number CN215352625U discloses an air generator with multiple filtration mechanisms, including a housing, a compressor fixedly installed on the rear side inside the housing, an air storage tank fixedly installed on the front side of the compressor, a drying tank fixedly installed on the top of the air storage tank, and multiple sets of heating tubes fixedly installed inside the drying tank. A filter is fixedly installed on the upper side inside the housing.

[0004] As shown in the above-mentioned utility model, existing air generators, through the combination of an electric pressure regulating valve and a pressure gauge, can electrically regulate the air pressure during exhaust. The pressure gauge also displays the exhaust pressure, improving the generator's practicality. The inclusion of noise-reducing cotton and a vacuum adsorption plate effectively reduces noise generated during operation. The vacuum adsorption plate also helps to secure the generator during use, preventing noise caused by instability. However, existing air generators lack a specific filtration mechanism for common airborne particles such as dust and insects, making it difficult to remove these impurities. Although the filter plates in existing generators are replaceable, they require bolt fixing. In practice, repeatedly disassembling and removing the bolts is time-consuming and can lead to difficulties in replacing the filter plates due to bolt damage, affecting equipment maintenance efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an air generator with a multi-stage filtration system, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air generator with a multi-stage filtration mechanism, comprising:

[0007] The equipment body has an air inlet on the upper side of one end, a first filter mechanism at the air inlet, and a second filter mechanism inside the equipment body for filtering the air entering the equipment body.

[0008] The first filter element, also known as the first filtration mechanism, is installed in a groove on the main body of the equipment and is used for preliminary filtration of air. The first filter element is designed to be detachable.

[0009] The second filter element, also known as the second filtration mechanism, is installed in a groove on the top of the main body of the equipment. There are multiple second filter elements, and the filter elements of different second filter elements are different.

[0010] Preferably, the main body of the device has an air inlet groove inside, the air inlet groove is connected to the air inlet, the opening of the air inlet groove has a mating groove, the top of the mating groove has a recess, and both the mating groove and the recess are adapted to the first filter element.

[0011] Preferably, the top of the main body of the device is provided with multiple slots at equal intervals, the slots are connected through the air inlet slot, the bottom of the slot has two symmetrically distributed spring slots, the inside of the spring slot is provided with a first spring, the top of the first spring is provided with a reset plate, and the reset plate is located at the lower end of the inner cavity of the slot.

[0012] Preferably, the slot has a groove on the outside of the opening, and both ends of the groove have placement slots. A limit block is provided inside the placement slot, and one end of the limit block is connected to the bottom of the placement slot through a second spring.

[0013] Preferably, the second filter element includes a filter screen plate inserted into a mating groove, a bonding plate fixed to the top of the filter screen plate, the bonding plate being located inside the groove, and a magnetic sheet adhered to the lower surface of the bonding plate, the magnetic sheet being magnetically connected to the bottom of the groove.

[0014] Preferably, the second filter element includes an insert plate inserted into a slot, a filter element embedded in the center of the insert plate, sealing rings on both sides of the filter element, the sealing rings fitting against the side wall of the slot, a top plate fixed to the top of the insert plate, and limiting grooves formed at both ends of the top plate, the limiting grooves being adapted to limiting blocks, a sliding groove connected to the top of the limiting grooves via a through groove, a pressure block provided inside the limiting grooves, and a lever connected to the top of the pressure block via a connecting block. Beneficial effects

[0015] This invention provides an air generator with a multi-stage filtration system. Compared with the prior art, it has the following advantages:

[0016] 1. This air generator with a multi-stage filtration system first filters large-diameter dust, insects, and other foreign objects through a filter screen at the air inlet. Then, a second filter composed of activated carbon and a HEPA filter further filters TVOC and small-diameter dust in the air. The multi-stage filtration structure can purify the air more comprehensively and specifically.

[0017] 2. This air generator with multiple filtration mechanisms features a design that facilitates disassembly for both the first and second filter elements. The first filter element is magnetically secured by a magnetic sheet, while the second filter element is secured by a limiting block and a return spring. With a simple operation of the lever, the insert plate can be quickly ejected, allowing for the replacement of the filter components and greatly improving the convenience of equipment maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the main structure of the device of this utility model.

[0020] Figure 3 This is a top view of the main structure of the device according to this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the first filter element of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the second filter element of this utility model.

[0023] In the diagram: main body of the equipment 1, air inlet groove 11, mating groove 12, groove 13, slot 14, spring groove 15, spring 151, reset plate 152, slot opening 16, placement groove 17, limiting block 18, second spring 19, first filter element 2, filter screen plate 21, bonding plate 22, magnetic sheet 23, second filter element 3, insert plate 31, filter element 32, sealing ring 33, top plate 34, limiting groove 35, sliding groove 36, pressure block 37, and lever 38. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 This utility model provides two technical solutions:

[0026] First embodiment: An air generator with multiple filtration mechanisms, including a main body 1, a first filter element 2, and a second filter element 3.

[0027] Specifically, an air inlet is provided on the upper side of one end of the main body 1, and a first filter mechanism is provided at the air inlet. A second filter mechanism is provided inside the main body 1 for filtering the air entering the main body 1. An air inlet groove 11 is provided inside the main body 1, and the air inlet groove 11 is connected to the air inlet. A mating groove 12 is provided at the opening of the air inlet groove 11, and a groove 13 is provided at the top of the mating groove 12. Both the mating groove 12 and the groove 13 are adapted to the first filter element 2. Multiple slots 14 are provided at equal intervals on the top of the main body 1, and the slots 14 are connected through the air inlet groove. The bottom of the slot 14 has two symmetrically distributed spring slots 15. A first spring 151 is installed inside the spring slot 15. A reset plate 152 is installed on the top of the first spring 151. The reset plate 152 is located at the lower end of the inner cavity of the slot 14. The reset plate 152, together with the first spring 151, can eject the second filter element 3 from the slot 14. A slot 16 is provided on the outside of the opening of the slot 14. Placement slots 17 are provided at both ends of the slot 16. A limit block 18 is provided inside the placement slot 17. One end of the limit block 18 is connected to the bottom of the placement slot 17 through a second spring 19.

[0028] More specifically, the first filter element 2 is the first filter mechanism. The first filter element 2 is installed in the groove opened on the main body of the equipment 1 and is used to perform preliminary filtration of the air. The first filter element 2 is set as a detachable structure. The second filter element 3 includes a filter screen plate 21 inserted into the mating groove 12. The filter screen plate 21 can filter large-diameter dust and flying insects in the air. The top of the filter screen plate 21 is fixed with an adhesive plate 22. The adhesive plate 22 is located inside the groove 13. A magnetic sheet 23 is adhered to the lower surface of the adhesive plate 22. The magnetic sheet 23 is connected to the bottom of the groove 13 by magnetic attraction, so that the filter screen plate 21 is installed stably and is easy to disassemble and replace quickly.

[0029] The second embodiment differs from the first embodiment mainly in that: the second filter element 3 is the second filtration mechanism. The second filter element 3 is installed in a groove opened at the top of the main body 1 of the device. Multiple second filter elements 3 are provided, and the filter elements of different second filter elements 3 are different. Each second filter element 3 includes an insert plate 31 inserted into a slot 14. A filter element 32 is embedded in the center of the insert plate 31. The filter elements 32 on the multiple second filter elements 3 are spaced apart as activated carbon and HEPA filters. Sealing rings 33 are provided on both sides of each filter element 32. The sealing rings 33 fit snugly against the side wall of the slot 14, and the sealing rings 33 provide a sealing effect. The sealing function prevents air leakage. A top plate 34 is fixed to the top of the insert plate 31. Limiting grooves 35 are opened at both ends of the top plate 34. The limiting grooves 35 are adapted to the limiting block 18. The limiting block 18 and the limiting groove 35 cooperate to limit the top plate 34 in the slot 16, thereby limiting the insert plate 31 in the slot 14. The top of the limiting groove 35 is connected to the sliding groove 36 through the through groove. A pressure block 37 is provided inside the limiting groove 35. The top of the pressure block 37 is connected to the lever 38 through the connecting block. The lever 38 can drive the pressure block 37 to move, squeezing the limiting block 18 out of the limiting groove 35 and releasing the limiting of the top plate 34.

[0030] When this device is in operation, it first draws outside air into the main body 1 through the air inlet and air intake slot 11 via a built-in fan. The air undergoes initial filtration at the air inlet by the filter screen 21, which removes large-particle dust, flying insects, and other foreign matter. The remaining air then undergoes secondary filtration at the filter elements 32 on multiple second filter elements 3. These filter elements 32 consist of activated carbon and HEPA filters, respectively. The activated carbon adsorbs and filters out formaldehyde, benzene, and other TVOCs from the air, while the HEPA filter removes... Small-diameter dust particles in the air are filtered out. After the phased work is completed, the main body 1 of the equipment is shut down. At this time, the bonding plate 22 is moved upward, and the filter screen 21 can be removed from the mating groove 12 for replacement and cleaning. Then, the lever 38 in the sliding groove 36 is moved. The lever 38 drives the pressure block 37 to move. The pressure block 37 squeezes the limiting block 18 into the placement groove 17, separating the limiting block 18 from the limiting groove 35 and releasing the limiting of the top plate 34. At this time, the insert plate 31 pops out under the action of the reset plate 152 and the first spring 151. The filter element 32 on the insert plate 31 is removed, cleaned and replaced.

[0031] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air generator with a multi-stage filtration system, characterized in that, include: The equipment body has an air inlet on the upper side of one end, a first filter mechanism at the air inlet, and a second filter mechanism inside the equipment body for filtering the air entering the equipment body. The first filter element, also known as the first filtration mechanism, is installed in a groove on the main body of the equipment and is used for preliminary filtration of air. The first filter element is designed to be detachable. The second filter element, also known as the second filtration mechanism, is installed in a groove on the top of the main body of the equipment. There are multiple second filter elements, and the filter elements of different second filter elements are different.

2. An air generator with a multi-filter mechanism according to claim 1, characterized in that: The main body of the device has an air inlet groove inside, which is connected to the air inlet. The opening of the air inlet groove has a mating groove, and the top of the mating groove has a recess. Both the mating groove and the recess are adapted to the first filter element.

3. An air generator with a multi-filter mechanism according to claim 1, characterized in that: The top of the main body of the device has multiple slots at equal intervals. The slots are connected to the air inlet slots. The bottom of the slots has two symmetrically distributed spring slots. A first spring is installed inside the spring slots. A reset plate is installed on the top of the first spring. The reset plate is located at the lower end of the inner cavity of the slot.

4. An air generator with a multi-filter mechanism according to claim 3, characterized in that: The slot has a groove on the outside of the opening, and a placement groove is provided at both ends of the groove. A limit block is provided inside the placement groove, and one end of the limit block is connected to the bottom of the placement groove through a second spring.

5. An air generator with a multi-filter mechanism according to claim 1, characterized in that: The second filter element includes a filter screen plate inserted into a mating groove. A bonding plate is fixed to the top of the filter screen plate. The bonding plate is located inside the groove. A magnetic sheet is adhered to the lower surface of the bonding plate. The magnetic sheet is magnetically connected to the bottom of the groove.

6. An air generator with a multi-filter mechanism according to claim 1, characterized in that: The second filter element includes an insert plate inserted into a slot. A filter element is embedded in the middle of the insert plate. Sealing rings are provided on both sides of the filter element. The sealing rings fit against the side wall of the slot. A top plate is fixed to the top of the insert plate. Limiting grooves are provided at both ends of the top plate. The limiting grooves are adapted to limiting blocks. A sliding groove is connected to the top of the limiting groove through a through groove. A pressure block is provided inside the limiting groove. A lever is connected to the top of the pressure block through a connecting block.