Automatic pressure difference adjusting device for clean room

Abstract

The invention relates to the technical field of air conditioning systems, in particular to an automatic pressure difference adjusting device for a clean room. According to the scheme, when pressure difference maintaining work is conducted, air in an air inlet pipe enters a bearing frame, then is guided out of an air guide frame opening and finally flows out of an air outlet grid; in the process, the air body firstly passes through the impurity removal auxiliary assembly, and a plurality of annular and rotatable adhesion cotton swabs are arranged in the impurity removal auxiliary assembly to perform primary impurity removal and filtration on the air body, so that the impurity removal pressure of the filter screen plate body is reduced, and most impurities are adhered to the adhesion cotton swabs; the problem that the filter screen plate body is blocked in a short time is avoided, namely the situation that ventilation power of an air conditioner needs to be increased when pressure difference maintaining work is carried out is avoided, and a certain beneficial effect on energy conservation of the air conditioner is achieved; in addition, the air outlet grid can be independently detached, the bearing frame does not need to be integrally detached, and the positive influence on indoor pressure difference stability and air conveying work is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning systems, and more particularly to an automatic differential pressure regulating device for a clean room. Background Art

[0002] A Chinese authorized patent document with the publication number CN210292156U discloses an automatic differential pressure regulating device for a clean room. Its solution includes an air inlet mechanism, an air return mechanism, and a differential pressure detection mechanism. The air inlet mechanism is arranged at the air inlet of the clean room and includes an air inlet pipe, a first electric valve, and a filter. The first electric valve is arranged on the air inlet pipe, and the filter is arranged at the air inlet of the clean room. The top of the filter is communicated with the air inlet pipe; the air return mechanism includes an air return pipe arranged at the air return opening, and a second electric valve is arranged on the air return pipe; the differential pressure detection mechanism includes a differential pressure sensor and a controller. Two detection probes of the differential pressure sensor are respectively arranged inside and outside the purification chamber. The output end of the differential pressure sensor is connected to the controller, and the controller is controlled to connect the first electric valve and the second electric valve.

[0003] In the above solution, during the operation of the automatic differential pressure regulating device, air enters the clean room from the intake pipe. To ensure the cleanliness of the clean room, the gas is filtered through the provided filter screen. To improve the filtering effect, the provided corrugated filter cotton is used for auxiliary filtering, which improves the filtering effect to a certain extent. At the same time, the negative impact is that the impurities adhering to the corrugated filter cotton will also affect the air delivery work. When it is necessary to stabilize the differential pressure, it is slower to reach the stable differential pressure range. This process may also require increasing the air conditioner power to speed up, affecting the energy efficiency of the air conditioner; generally, it requires regular cleaning by staff. Generally, the air outlet is embedded in the indoor wall. When performing replacement and cleaning work, it needs to be disassembled as a whole, which is rather troublesome, thus having a negative impact on the stability of the indoor differential pressure and the air delivery work.

[0004] Therefore, the present invention proposes an automatic differential pressure regulating device for a clean room to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic differential pressure regulating device for a clean room to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An automatic differential pressure regulating device for a clean room includes a bearing frame body and an air inlet pipe arranged at the tail end of the bearing frame body. A wind guiding frame opening is arranged in the inner cavity of the bearing frame body, and an embedding frame is fixedly arranged at the front frame opening of the bearing frame body;

[0007] A filtering auxiliary mechanism is provided at the front end of the air guiding frame opening, and a impurity removing auxiliary component is provided in the inner cavity of the air guiding frame opening. An installation slot is provided on the inner side of the embedded border. An air outlet grille is provided in the installation slot, and a rubber strip is fixedly provided at the side position of the air outlet grille. First handles are symmetrically and fixedly provided at the front end of the air outlet grille.

[0008] Preferably, the filtering auxiliary mechanism includes a connecting border, a loading slot, a filter screen plate body and a second handle; the connecting border is fixedly provided at the front end of the air guiding frame opening, and a loading slot is provided at the frame opening position of the connecting border.

[0009] Preferably, the filter screen plate body is snap-fitted in the loading slot, and second handles are symmetrically and fixedly provided at the front side of the filter screen plate body.

[0010] Preferably, the impurity removing auxiliary component includes a rotation control motor, a connecting rotating shaft, a limiting retaining disc, a first docking body, a connecting stud, a second docking body, an internally threaded fastening cap body, a bearing disc, a loading inserting rod, an adhesive cotton swab and a loading slot body; the rotation control motors are symmetrically and fixedly provided on both sides of the air guiding frame opening, and the rotation control motors are connected to the connecting rotating shaft. The connecting rotating shaft is inserted into the side wall of the air guiding frame opening, and a limiting retaining disc is fixedly provided at one end of the connecting rotating shaft, and a first docking body is fixedly provided on the other side of the limiting retaining disc.

[0011] Preferably, a connecting stud is fixedly provided at the center position of one side of the bearing disc, a second docking body is fixedly provided at one end of the connecting stud, and an internally threaded fastening cap body is threadedly connected to the connecting stud.

[0012] Preferably, the second docking body and the first docking body are arranged in corresponding positions and have the same number of sets, and both are half-threaded column bodies formed by cutting a threaded column along the axial direction. The second docking body and the first docking body are docked to form a threaded column.

[0013] Preferably, loading inserting rods are equidistantly and annularly fixedly provided on the other side of the bearing disc, and the loading inserting rods are adaptively inserted into the loading slot bodies at the ends of the adhesive cotton swabs.

[0014] Preferably, two loading slot bodies are symmetrically provided at both ends of the adhesive cotton swab, and the equidistantly and annularly arranged adhesive cotton swabs form an adhesive cotton cylinder, and there is a gap between adjacent adhesive cotton swabs.

[0015] Preferably, a purification auxiliary structure is arranged between adjacent adhesive cotton swabs. The purification auxiliary structure includes a splicing card slot, a connecting cotton strip, a containing cavity and a spherical cotton body. The splicing card slots are symmetrically arranged on both sides of the adhesive cotton swab. One end of the connecting cotton strip is adaptively inserted into the splicing card slot on the side wall of one adhesive cotton swab, and the other end of the connecting cotton strip is adaptively inserted into the splicing card slot on the side wall of another adjacent adhesive cotton swab. A spherical cotton body is arranged at the middle position of the connecting cotton strip.

[0016] Preferably, a spherical cavity is arranged in the spherical cotton body, and a containing cavity is arranged in the connecting cotton strip, and the containing cavity is communicated with the spherical cavity.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The automatic differential pressure regulating device for a clean room designed by the present invention includes a carrying frame and an air inlet pipe arranged at the tail end of the carrying frame. A wind guiding frame opening is arranged in the inner cavity of the carrying frame, and an embedding frame is fixedly arranged at the front end frame opening of the carrying frame. A filtering auxiliary mechanism is arranged at the front end of the wind guiding frame opening, and an impurity removing auxiliary component is arranged in the inner cavity of the wind guiding frame opening. An installation card slot is arranged inside the embedding frame, an air outlet grille is arranged in the installation card slot, and a rubber strip is fixedly arranged at the side position of the air outlet grille. First handles are symmetrically and fixedly arranged at the front end of the air outlet grille. In this solution, mainly when maintaining the differential pressure, the air in the air inlet pipe enters the carrying frame, then is led out from the wind guiding frame opening, and finally flows out from the air outlet grille. During this process, the air body first passes through the impurity removing auxiliary component for treatment. The multiple adhesive cotton swabs arranged in a ring and capable of rotating in the impurity removing auxiliary component perform primary impurity removal and filtration on the air body, thereby reducing the impurity removal pressure on the filter screen body. Moreover, the rotating adhesive cotton swabs driven by the rotation control motor can prevent a certain adhesive cotton swab from always being in the front-end position of filtration, that is, multiple adhesive cotton swabs perform rotation filtration and impurity removal in turn, improving its purification and impurity removal efficiency, making most impurities adhere to the adhesive cotton swabs, and avoiding the problem that the filter screen body is blocked in a short time, that is, avoiding the need to increase the air-conditioning ventilation power to achieve during the differential pressure maintenance work, which has a certain beneficial effect on air-conditioning energy conservation. Furthermore, in order to ensure the stable operation of the differential pressure, when a large amount of impurities adhere to the filter screen body or the adhesive cotton swabs, regular cleaning and maintenance are required. And when disassembly and maintenance are needed, the air outlet grille can be disassembled separately without removing the entire carrying frame, facilitating the disassembly and maintenance work of the filter screen body and the adhesive cotton swabs inside, improving the convenience of its maintenance operation, and having a positive impact on the stable indoor differential pressure and the air delivery work. Description of the Drawings

[0019] Figure 1 Schematic diagram of the structural connection between the carrying frame and the air inlet pipe of the present invention;

[0020] Figure 2 is Figure 1 The enlarged schematic diagram of the structural connection at position A in

[0021] Figure 3 is the schematic diagram of the internal structural connection of the bearing frame of the present invention;

[0022] Figure 4 is the schematic diagram of the internal structural connection of the air guiding frame opening of the present invention;

[0023] Figure 5 is Figure 4 the enlarged schematic diagram of the structural connection at position B in

[0024] Figure 6 is the exploded schematic diagram of the structural connection between the air guiding frame opening and the impurity removal auxiliary component of the present invention;

[0025] Figure 7 is Figure 6 the enlarged schematic diagram of the structural connection at position C in

[0026] Figure 8 is the exploded schematic diagram of the structural connection of the impurity removal auxiliary component of the present invention;

[0027] Figure 9 is Figure 8 the enlarged schematic diagram of the structural connection at position D in

[0028] Figure 10 is Figure 8 the enlarged schematic diagram of the structural connection at position E in

[0029] Figure 11 is the schematic diagram of the structural connection between the adhesion cotton swab and the purification auxiliary of the present invention;

[0030] Figure 12 is Figure 11 the enlarged schematic diagram of the structural connection at position F in

[0031] Figure 13 is the schematic diagram of the structural connection of the purification auxiliary structure of the present invention.

[0032] In the figure: bearing frame 1, air guiding frame opening 12, embedded border 13, installation card slot 14, air inlet pipe 2, air outlet grille 3, rubber strip 31, first handle 32, connection border 401, loading card slot 402, filter screen plate body 403, second handle 404, rotation control motor 501, connection rotating shaft 502, limit stop disc 503, first docking body 504, connection stud 505, second docking body 506, internal thread fastening cap body 507, bearing disc 508, loading insertion rod 509, adhesion cotton swab 510, loading slot body 511, splicing card slot 601, connection cotton strip 602, accommodation cavity 603, spherical cotton body 604. Detailed implementation manners

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] Embodiment 1: Please refer to Figures 1 - 10 , a clean room differential pressure automatic adjustment device, including a bearing frame 1 and an air inlet pipe 2 arranged at the tail end of the bearing frame 1. A wind guiding frame opening 12 is arranged in the inner cavity of the bearing frame 1, and a splicing border 13 is fixedly arranged at the front end frame opening of the bearing frame 1; a filtering auxiliary mechanism is arranged at the front end of the wind guiding frame opening 12, and an impurity removal auxiliary component is arranged in the inner cavity of the wind guiding frame opening 12. An installation slot 14 is arranged inside the splicing border 13, an air outlet grille 3 is arranged in the installation slot 14, a rubber strip 31 is fixedly arranged at the side position of the air outlet grille 3, and first handles 32 are symmetrically and fixedly arranged at the front end of the air outlet grille 3.

[0035] When maintaining the differential pressure, the air in the air inlet pipe 2 enters the bearing frame 1, then is led out from the wind guiding frame opening 12, and finally flows out from the air outlet grille 3. In this process, the air body first passes through the impurity removal auxiliary component for treatment. A plurality of annular and rotatable adhesion cotton swabs 510 arranged in the impurity removal auxiliary component perform primary impurity removal and filtration on the air body, thereby reducing the impurity removal pressure of the filter screen plate body 403. Moreover, the rotation control motor 501 drives the rotation of the adhesion cotton swabs 510, which can prevent a certain adhesion cotton swab 510 from always being in the front-end position of filtration, that is, multiple adhesion cotton swabs 510 perform alternate filtration and impurity removal, improving its purification and impurity removal efficiency, making most impurities adhere to the adhesion cotton swabs 510, and avoiding the problem of blockage of the filter screen plate body 403 in a short time.

[0036] And to ensure the stable operation of the differential pressure, when a large amount of impurities adhere to the filter screen plate body 403 or the adhesion cotton swabs 510, regular cleaning and maintenance are required. First, the air outlet grille 3 needs to be disassembled. The air outlet grille 3 is snap-fitted with the installation slot 14 inside the splicing border 13. That is, during the maintenance work, the splicing border 13 can be directly pulled out without disassembling the entire bearing frame 1. Moreover, a rubber strip 31 is fixedly arranged at the side position of the air outlet grille 3. The purpose of setting the rubber strip 31 here is to provide a stable effect and a sealing effect for the snap connection between the air outlet grille 3 and the installation slot 14. When disassembling the air outlet grille 3, the air outlet grille 3 can be directly pulled out by pulling the first handle 32 with the hand.

[0037] The filtering auxiliary mechanism in this solution includes a connecting frame 401, a loading slot 402, a filter screen plate body 403, and a second handle 404; the connecting frame 401 is fixedly arranged at the front end of the air guiding frame opening 12, and a loading slot 402 is arranged at the frame opening position of the connecting frame 401; the filter screen plate body 403 is clamped in the loading slot 402, and second handles 404 are symmetrically and fixedly arranged on the front side of the filter screen plate body 403. That is, after the air outlet grille 3 is pulled out and disassembled, then the filter screen plate body 403 needs to be disassembled. By pulling the second handle 404 on the front side of the filter screen plate body 403 with the hand, the filter screen plate body 403 can be directly pulled out, and the impurities on the filter screen plate body 403 can be cleaned up.

[0038] When it is necessary to disassemble the adhesive cotton swab 510, first rotate the internally threaded fastening cap body 507 to release the connection and fixation between the first docking body 504 and the second docking body 506. Then, disassemble the adhesive cotton cylinder formed by the bearing plate 508 and the adhesive cotton swab 510, that is, pull out the entire adhesive cotton cylinder. The impurity removal auxiliary component includes a rotation control motor 501, a connecting rotating shaft 502, a limiting stop disk 503, a first docking body 504, a connecting stud 505, a second docking body 506, an internally threaded fastening cap body 507, a bearing plate 508, a loading insertion rod 509, an adhesive cotton swab 510, and a loading slot body 511; the rotation control motors 501 are symmetrically and fixedly arranged on both sides of the air guiding frame opening 12, and the rotation control motors 501 are connected to the connecting rotating shaft 502. The connecting rotating shaft 502 is inserted into the side wall of the air guiding frame opening 12, and a limiting stop disk 503 is fixedly arranged at one end of the connecting rotating shaft 502, and a first docking body 504 is fixedly arranged on the other side of the limiting stop disk 503; a connecting stud 505 is fixedly arranged at the center position on one side of the bearing plate 508, and a second docking body 506 is fixedly arranged at one end of the connecting stud 505. An internally threaded fastening cap body 507 is threadedly connected to the connecting stud 505; the second docking body 506 and the first docking body 504 are arranged in corresponding positions and the same number of sets, and both are half-threaded column bodies formed by cutting a threaded column along the axial direction. The second docking body 506 and the first docking body 504 are docked to form a threaded column; loading insertion rods 509 are fixedly arranged at equal intervals in a ring shape on the other side of the bearing plate 508, and the loading insertion rods 509 are adaptively inserted into the loading slot bodies 511 at the ends of the adhesive cotton swabs 510; two loading slot bodies 511 are symmetrically arranged at both ends of the adhesive cotton swab 510, and the adhesive cotton swabs 510 arranged at equal intervals in a ring shape form an adhesive cotton cylinder, and there is a gap between adjacent adhesive cotton swabs 510.

[0039] In order to improve the cleaning efficiency and convenience of the adhesive cotton swab 510, the adhesive cotton swab 510 can be separately disassembled. That is, in this solution, the loading slot bodies 511 at both ends of the adhesive cotton swab 510 are respectively inserted into the loading insertion rods 509. When it is necessary to remove the adhesive cotton swab 510, directly pull the bearing disks 508 provided at both ends outwards until the loading insertion rods 509 on the bearing disks 508 are separated from the loading slot bodies 511 at the ends of the adhesive cotton swab 510, and the removal work of the adhesive cotton swab 510 can be completed. The operation is simple. Then, the adhesive cotton swab 510 can be cleaned or directly replaced with a new one.

[0040] After the cleaning of the adhesive cotton swab 510 and the filter screen plate body 403 is completed, the installation is carried out. First, the adhesive cotton swab 510 is installed. That is, first insert the loading slot body 511 at one end of the adhesive cotton swab 510 into the loading insertion rod 509 on one of the bearing disks 508, and then insert the loading insertion rods 509 at other positions into the adhesive cotton swab 510. Then, insert the loading insertion rod 509 on the other bearing disk 508 into the loading slot body 511 at the other end of the adhesive cotton swab 510. Then, send the entire adhesive cotton cylinder into the inner cavity of the air guiding frame opening 12, and make the second docking body 506 at the end of the connecting stud 505 on the outer side of the bearing disk 508 dock with the first docking body 504 on the limit retaining disk 503. After docking, rotate the internal thread fastening cap body 507 until the internal thread fastening cap body 507 reaches the position where the first docking body 504 and the second docking body 506 are docked, and one end of the internal thread fastening cap body 507 is in close contact with the limit retaining disk 503. The installation work of the adhesive cotton cylinder can be quickly completed. Then, the filter screen plate body 403 is installed, that is, press and hold the second handle 404 by hand to press and clamp the filter screen plate body 403 in the loading card slot 402 of the front side connecting frame 401 of the air guiding frame opening 12. Finally, the air outlet grille 3 is installed, that is, also press and hold the first handle 32 by hand to press and clamp the air outlet grille 3 in the installation card slot 14 on the embedding frame 13.

[0041] Embodiment 2: On the basis of Embodiment 1, please refer to Figures 11 - 13, when the air-conditioning system is maintaining the pressure difference during the air delivery process, when it is necessary to purify the input air or the output air, that is, when there are harmful substances in the air that need to be purified, in this solution, impurity removal auxiliary components can be set at the air outlet or the air inlet, and a purification auxiliary structure is arranged between adjacent adhesive cotton swabs 510. The purification auxiliary structure includes a splicing slot 601, a connecting cotton strip 602, a receiving cavity 603, and a spherical cotton body 604; the splicing slots 601 are symmetrically arranged on both sides of the adhesive cotton swab 510. One end of the connecting cotton strip 602 is adaptively inserted into the splicing slot 601 on the side wall of one adhesive cotton swab 510, and the other end of the connecting cotton strip 602 is adaptively inserted into the splicing slot 601 on the side wall of another adjacent adhesive cotton swab 510. A spherical cotton body 604 is arranged at the middle position of the connecting cotton strip 602; a spherical cavity is arranged in the spherical cotton body 604, a receiving cavity 603 is arranged in the connecting cotton strip 602, and the receiving cavity 603 is communicated with the spherical cavity.

[0042] The splicing slot 601 is arranged on the side wall of the adhesive cotton swab 510, which is convenient for the installation of the connecting cotton strip 602. That is, both ends of the connecting cotton strip 602 are clamped with the splicing slots 601 on the side wall of the adhesive cotton swab 510, making the connecting cotton strip 602 easy to disassemble and assemble, facilitating later maintenance and replacement work. A receiving cavity 603 is arranged in the connecting cotton strip 602, and the purpose is to facilitate the placement of corresponding purifying agents, or purifying particles, or to wet the connecting cotton strip 602 with the purifying agent for use. For the disassembly of the adhesive cotton swab 510 connected with the purification auxiliary structure, after the adhesive cotton swab 510 is disassembled, first disassemble the connecting cotton strip 602 between two adjacent adhesive cotton swabs 510, that is, directly hold the connecting cotton strip 602 by hand and pull it out, so that both ends of the connecting cotton strip 602 are separated from the splicing slot 601. Then pull out all the connecting cotton strips 602 between the same adjacent adhesive cotton swabs 510. After all are disassembled, then disassemble the adhesive cotton swabs 510 on both sides after the connecting cotton strip 602 is disassembled, that is, pull out the adhesive cotton swab 510, so that the splicing slot 601 on the side of the adhesive cotton swab 510 is separated from one end of the connecting cotton strip 602, and then pull out the connecting cotton strip 602 one by one, and all can be disassembled according to the same operation for cleaning or replacing the connecting cotton strip 602.

[0043] For the overall installation work of connecting the tampon 602 and the adhesive cotton swab 510, first take an adhesive cotton swab 510. The splicing slots 601 on one side of the adhesive cotton swab 510 are respectively inserted into one end of the connecting tampon 602. After the insertion is completed, then take another adhesive cotton swab 510, and the splicing slots 601 on one side of this adhesive cotton swab 510 are respectively inserted into the other end of the connecting tampon 602. Install all the adhesive cotton swabs 510 according to the same operation above until all the required adhesive cotton swabs 510 are installed. At this time, multiple adhesive cotton swabs 510 form a cylinder. At this time, for the last installed adhesive cotton swab 510 and the first installed adhesive cotton swab 510, a connecting tampon 602 still needs to be installed. At this time, press the middle position of the connecting tampon 602 to align the end of the connecting tampon 602 with the splicing slot 601 on the side wall of the adhesive cotton swab 510. Then insert the end of the connecting tampon 602 into the splicing slot 601. After the overall installation of the adhesive cotton swab 510 and the connecting tampon 602 is completed, then insert the cylindrical adhesive cotton swab 510 into the loading insertion rod 509 on the carrier plate 508 for plug-in connection.

[0044] During actual use, if a certain or partial connecting tampon 602 between adjacent adhesive cotton swabs 510 is damaged, in order to solve the replacement and maintenance time, the impurity removal auxiliary component does not need to be disassembled. The connecting tampon 602 that needs to be replaced can be directly disassembled, that is, hold the middle position of the connecting tampon 602 with your hand and pull it out directly. Install the new connecting tampon 602. This process also requires the staff to press the middle position of the connecting tampon 602 with their hand to make the connecting tampon 602 in a corresponding bent shape, and make both ends of the connecting tampon 602 close to the splicing slot 601 on the adhesive cotton swab 510. Then, snap the ends of the connecting tampon 602 into the splicing slot 601. At the same time, the connecting tampon 602 returns to its initial state.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clean room pressure difference automatic regulating device, comprising a carrying frame (1) and an air inlet pipe (2) arranged at the rear end of the carrying frame (1), the inner cavity of the carrying frame (1) is provided with an air guide frame opening (12), and the front frame opening of the carrying frame (1) is fixedly provided with an embedded frame (13); Features: A filtering auxiliary mechanism is arranged at the front end of the air guide frame opening (12), and a debris removal auxiliary component is arranged in the inner cavity of the air guide frame opening (12); a mounting slot (14) is arranged on the inner side of the embedded frame (13); an air outlet grille (3) is arranged in the mounting slot (14), and a rubber clip strip (31) is fixedly arranged at the side position of the air outlet grille (3); and a first handle (32) is symmetrically fixedly arranged at the front end of the air outlet grille (3).

2. The clean room pressure difference automatic adjustment device according to claim 1, characterized in that: The auxiliary filtering mechanism comprises a connecting frame (401), a loading slot (402), a filter screen body (403) and a second handle (404); the connecting frame (401) is fixedly arranged at the front end of the air guide frame opening (12), and a loading slot (402) is arranged at the frame opening position of the connecting frame (401).

3. The clean room pressure difference automatic adjustment device according to claim 2, characterized in that: A filter screen plate body (403) is clamped in the loading clamping slot (402), and a second handle (404) is symmetrically fixedly arranged on the front side of the filter screen plate body (403).

4. The clean room pressure difference automatic adjustment device according to claim 1, characterized in that: The impurity removal auxiliary component comprises a rotation control motor (501), a connecting shaft (502), a limit stop plate (503), a first docking body (504), a connecting stud (505), a second docking body (506), an internal thread fastening cap body (507), a carrier plate (508), a loading plug rod (509), an adhesive cotton swab (510) and a loading slot body (511); the rotation control motor (501) is symmetrically fixedly arranged on both sides of the air guide frame opening (12), and the rotation control motor (501) is connected to the connecting shaft (502), the connecting shaft (502) is plugged into the side wall of the air guide frame opening (12), and a limit stop plate (503) is fixedly arranged on one end of the connecting shaft (502), and the first docking body (504) is fixedly arranged on the other side of the limit stop plate (503).

5. The clean room pressure difference automatic adjustment device according to claim 4, characterized in that: A connecting stud (505) is fixedly provided at the center position of one side of the carrier plate (508), and a second docking body (506) is fixedly provided at one end of the connecting stud (505), and an internal thread fastening cap body (507) is threadedly connected to the connecting stud (505).

6. The clean room pressure difference automatic regulating device according to claim 4, characterized in that: The second docking body (506) and the first docking body (504) are arranged at corresponding positions and have the same number of groups. Both are half threaded columns formed by cutting a threaded column in half along the axial direction, and the second docking body (506) and the first docking body (504) are docked to form a threaded column.

7. The clean room pressure difference automatic regulating device according to claim 4, characterized in that: Loading rods (509) are fixedly arranged in a ring shape and equidistantly on the other side of the carrier plate (508), and the loading rods (509) are adapted to be plugged into the loading slot body (511) at the end of the adhesive cotton swab (510).

8. The clean room pressure difference automatic regulating device according to claim 4, characterized in that: Two loading slot bodies (511) are symmetrically arranged at both ends of the adhesive cotton stick (510), and the adhesive cotton sticks (510) arranged equidistantly in a ring shape form an adhesive cotton tube, and there is a gap between adjacently arranged adhesive cotton sticks (510).

9. The clean room pressure difference automatic regulating device according to claim 4, characterized in that: A purification auxiliary structure is arranged between adjacent adhesive cotton swabs (510), and the purification auxiliary structure comprises a splicing slot (601), a connecting cotton strip (602), a accommodating cavity (603) and a spherical cotton body (604); the splicing slot (601) is symmetrically arranged on both sides of the adhesive cotton swab (510), one end of the connecting cotton strip (602) is adapted to be plugged into the splicing slot (601) on the side wall of one of the adhesive cotton swabs (510), and the other end of the connecting cotton strip (602) is adapted to be plugged into the splicing slot (601) on the side wall of another adjacent adhesive cotton swab (510), and a spherical cotton body (604) is arranged in the middle of the connecting cotton strip (602).

10. The clean room pressure difference automatic regulating device according to claim 9, characterized in that: The spherical cotton body (604) is provided with a spherical cavity, the connecting cotton strip (602) is provided with a containing cavity (603), and the containing cavity (603) is connected to the spherical cavity.

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