Clean room differential pressure automatic regulating device

Abstract

The present application relates to air conditioning system technical field, especially to a clean room differential pressure automatic regulating device, the scheme mainly is in maintaining the differential pressure work, the wind in the air inlet pipe enters the bearing frame, then is guided from the air guide frame mouth, finally flows out from the air outlet grid, in this process, the wind body first passes through the impurity removal auxiliary assembly and is placed, and a plurality of annular and rotatable adhesive cotton swabs arranged in the impurity removal auxiliary assembly are used for primary impurity removal and filtration of the wind body, thereby reducing the impurity removal pressure of the filter screen plate body, so that most of the impurities are adhered to the adhesive cotton swabs, and the problem of clogging of the filter screen plate body in a short time is avoided, that is, the air conditioning ventilation power needs to be increased to realize the maintaining differential pressure work, which has certain beneficial effect on air conditioning energy saving; the air outlet grid can be separately detached, without the need of overall dismounting the bearing frame, which has positive influence on indoor differential pressure stability and wind conveying work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning systems, in particular to a clean room pressure difference automatic regulating device. BACKGROUND

[0002] The Chinese authorized patent document with the publication number CN210292156U discloses a clean room pressure difference automatic regulating device, which includes an air inlet mechanism, an air return mechanism and a pressure difference detection mechanism. The air inlet mechanism is arranged at the air inlet of the clean room and includes an air inlet pipeline, a first electric valve and a filter. The first electric valve is arranged on the air inlet pipeline, and the filter is arranged at the air inlet of the clean room. The top of the filter is in communication with the air inlet pipeline. The air return mechanism includes an air return pipeline arranged at the air return outlet. The air return pipeline is provided with a second electric valve. The pressure difference detection mechanism includes a pressure difference sensor and a controller. Two detection probes of the pressure difference sensor are arranged inside and outside the purification cavity, respectively. The output end of the pressure difference sensor is connected to the controller. The controller controls the first electric valve and the second electric valve.

[0003] In the above-mentioned scheme, during the operation of the pressure difference automatic regulating device, air enters the clean room from the air inlet pipeline. In order to ensure the cleanliness in the clean room, the filter screen is arranged to filter the air. In order to improve the filtering effect, the wave-shaped filter cotton is arranged for auxiliary filtering, which improves the filtering effect to a certain extent. However, the negative effect is that the impurities adhered to the wave-shaped filter cotton also affect the air delivery work. When the pressure difference needs to be stabilized, it takes a long time to reach the stable pressure difference range. In this process, the air conditioner power needs to be increased to speed up, which affects the energy saving of the air conditioner. Generally, the staff needs to clean regularly. The air outlet is embedded in the wall of the room. When replacing and cleaning, the whole needs to be disassembled, which is troublesome, and thus negatively affects the indoor pressure difference stabilization and air delivery work.

[0004] Therefore, the present application provides a clean room pressure difference automatic regulating device to solve the above-mentioned problems. SUMMARY

[0005] The present application aims to provide a clean room pressure difference automatic regulating device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a clean room pressure difference automatic regulating device, including a bearing frame and an air inlet pipe arranged at the tail end of the bearing frame. The inner cavity of the bearing frame is provided with a wind guide frame opening, and the front end frame opening of the bearing frame is fixedly provided with an embedded border.

[0007] The front end of the air guide frame opening is provided with a filtering auxiliary mechanism, and the inner cavity of the air guide frame opening is provided with a impurity removal auxiliary assembly, the inner side of the embedded frame is provided with a mounting clamping groove, the mounting clamping groove is provided with an air outlet grid, and the side of the air outlet grid is fixedly provided with a rubber clamping strip, and the front end of the air outlet grid is fixedly provided with a first handle.

[0008] Preferably, the filtering auxiliary mechanism comprises a connecting frame, a loading clamping groove, a filter screen plate body and a second handle; the connecting frame is fixedly arranged at the front end of the air guide frame opening, and the frame opening of the connecting frame is provided with a loading clamping groove.

[0009] Preferably, the filter screen plate body is clamped in the loading clamping groove, and the front side of the filter screen plate body is fixedly provided with a second handle.

[0010] Preferably, the impurity removal auxiliary assembly comprises a rotary control motor, a connecting shaft, a limiting stop disc, a first butt joint body, a connecting stud, a second butt joint body, an internally threaded fastening cap body, a bearing disc, a loading insertion rod, an adhesive cotton stick and a loading insertion groove body; the rotary control motor is fixedly arranged on both sides of the air guide frame opening, and the rotary control motor is connected with the connecting shaft; the connecting shaft is inserted into the side wall of the air guide frame opening, one end of the connecting shaft is fixedly provided with a limiting stop disc, and the other side of the limiting stop disc is fixedly provided with a first butt joint body.

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

[0012] Preferably, the second butt joint body and the first butt joint body are arranged at corresponding positions and have the same number of groups, and both are formed by cutting a threaded column along the axis direction to form a half threaded column body, and the second butt joint body and the first butt joint body are butted to form a threaded column.

[0013] Preferably, the other side of the bearing disc is fixedly provided with a loading insertion rod in an equidistant annular manner, and the loading insertion rod is inserted into the loading insertion groove body at the end of the adhesive cotton stick.

[0014] Preferably, the two ends of the adhesive cotton stick are symmetrically provided with two loading insertion groove bodies, and the equidistant annularly arranged adhesive cotton stick forms an adhesive cotton cylinder, and there is a gap between the adjacent adhesive cotton sticks.

[0015] Preferably, a purification auxiliary structure is arranged between adjacent adhesive cotton swabs, the purification auxiliary structure comprising a splicing slot, a connecting cotton strip, a containing cavity and a spherical cotton body; the splicing slot is symmetrically arranged at both sides of the adhesive cotton swab, one end of the connecting cotton strip is inserted into the splicing slot of the side wall of one of the adhesive cotton swabs, the other end of the connecting cotton strip is inserted into the splicing slot of the side wall of another adjacent adhesive cotton swab, and the 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 arranged in communication with the spherical cavity.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The clean room pressure difference automatic adjusting device comprises a bearing frame and an air inlet pipe arranged at the tail end of the bearing frame. The inner cavity of the bearing frame is provided with an air guide frame opening, and the front end frame opening of the bearing frame is fixedly provided with an embedded border. A filter auxiliary mechanism is arranged at the front end of the air guide frame opening, and a impurity removal auxiliary assembly is arranged in the inner cavity of the air guide frame opening. An installation slot is arranged on the inner side of the embedded border, an air outlet grid is arranged in the installation slot, a rubber clamping strip is fixedly arranged at the side position of the air outlet grid, and a first handle is fixedly arranged at the front end of the air outlet grid. When maintaining the pressure difference, the air in the air inlet pipe enters the bearing frame, is then guided out from the air guide frame opening, and finally flows out from the air outlet grid. In this process, the air body first passes through the impurity removal auxiliary assembly, and a plurality of adhesive cotton swabs arranged in the impurity removal auxiliary assembly are annular and can rotate. The adhesive cotton swabs perform primary impurity removal and filtration on the air body, thereby reducing the impurity removal pressure of the filter screen plate body. The rotating adhesive cotton swabs driven by the rotating control motor can avoid that a certain adhesive cotton swab is always located at the front end of the filter. The plurality of adhesive cotton swabs perform rotation filtration and impurity removal, improve the purification and impurity removal efficiency, and make most of the impurities adhere to the adhesive cotton swabs. The filter screen plate body is prevented from being blocked in a short time. When maintaining the pressure difference, the air conditioning ventilation power needs to be increased to achieve the purpose. The air conditioning energy saving has certain beneficial effects. In addition, in order to ensure stable pressure difference, the filter screen plate body or the adhesive cotton swab needs to be cleaned and maintained regularly. When disassembly and maintenance are needed, the air outlet grid can be disassembled separately, and the bearing frame does not need to be disassembled as a whole. The disassembly and maintenance of the filter screen plate body and the adhesive cotton swab are facilitated, the maintenance operation convenience is improved, and the indoor pressure difference stability and air conveying work are positively affected. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The figure is a schematic view of the structure connection between the bearing frame and the air inlet pipe of the present application.

[0020] Figure 2 For Figure 1 Structure connection enlarged schematic view at A in the middle;

[0021] Figure 3 Structure connection schematic view of the internal structure of the carrying frame body of the application;

[0022] Figure 4 Structure connection schematic view of the internal structure of the air guide frame opening of the application;

[0023] Figure 5 For Figure 4 Structure connection enlarged schematic view at B in the middle;

[0024] Figure 6 Explosion schematic view of the structure connection of the air guide frame opening and the impurity removal auxiliary assembly of the application;

[0025] Figure 7 For Figure 6 Structure connection enlarged schematic view at C in the middle;

[0026] Figure 8 Explosion schematic view of the structure connection of the impurity removal auxiliary assembly of the application;

[0027] Figure 9 For Figure 8 Structure connection enlarged schematic view at D in the middle;

[0028] Figure 10 For Figure 8 Structure connection enlarged schematic view at E in the middle;

[0029] Figure 11 Schematic view of the structure connection of the application of the adhesive cotton swab and the purification auxiliary structure;

[0030] Figure 12 For Figure 11 Structure connection enlarged schematic view at F in the middle;

[0031] Figure 13 Structure connection schematic view of the purification auxiliary structure connection structure of the application.

[0032] In the figure: carrying frame body 1, air guide frame opening 12, embedded frame 13, mounting clamping groove 14, air inlet pipe 2, air outlet grid 3, rubber clamping strip 31, first handle 32, connection frame 401, loading clamping groove 402, filter screen plate body 403, second handle 404, rotary control motor 501, connecting shaft 502, limiting stop disc 503, first butt joint body 504, connecting stud 505, second butt joint body 506, internally threaded fastening cap body 507, carrying disc 508, loading insertion rod 509, adhesive cotton swab 510, loading insertion slot body 511, splicing clamping groove 601, connecting cotton strip 602, containing cavity 603, spherical cotton body 604. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1-10 An automatic differential pressure regulating device for cleanrooms includes a support frame 1 and an air inlet pipe 2 disposed at the tail end of the support frame 1. The inner cavity of the support frame 1 is provided with an air guide frame 12, and the front end of the support frame 1 is fixedly provided with an embedded frame 13. A filter auxiliary mechanism is provided at the front end of the air guide frame 12, and a dirt removal auxiliary component is provided in the inner cavity of the air guide frame 12. An installation slot 14 is provided on the inner side of the embedded frame 13, and an air outlet grille 3 is provided in the installation slot 14. A rubber strip 31 is fixedly provided on the side of the air outlet grille 3, and a first handle 32 is symmetrically fixedly provided at the front end of the air outlet grille 3.

[0035] When maintaining differential pressure, the air in the inlet pipe 2 enters the support frame 1, then exits from the air guide frame 12, and finally flows out from the air outlet 3. During this process, the air first passes through the impurity removal auxiliary component, and the multiple ring-shaped and rotatable adhesive cotton rods 510 in the impurity removal auxiliary component perform initial impurity removal filtration on the air, thereby reducing the impurity removal pressure on the filter screen plate 403. Furthermore, the rotation control motor 501 drives the rotating adhesive cotton rods 510 to avoid one adhesive cotton rod 510 being in the front end of the filter position all the time. That is, multiple adhesive cotton rods 510 take turns filtering and removing impurities, improving the purification and impurity removal efficiency, so that most impurities adhere to the adhesive cotton rods 510, avoiding the problem of the filter screen plate 403 becoming blocked in a short time.

[0036] Furthermore, to ensure stable operation of the differential pressure, regular cleaning and maintenance are required when a large amount of impurities adhere to the filter screen 403 or the adhesive cotton swab 510. First, the air outlet grille 3 needs to be disassembled. The air outlet grille 3 is engaged with the mounting slot 14 on the inner side of the embedded frame 13. That is, during maintenance, the embedded frame 13 can be pulled out directly without disassembling the entire supporting frame 1. In addition, this solution also has a rubber strip 31 fixedly installed on the side of the air outlet grille 3. The purpose of setting the rubber strip 31 here is to provide a stabilizing effect for the engagement between the air outlet grille 3 and the mounting slot 14, and also to provide a sealing effect. When disassembling the air outlet grille 3, simply pull the first handle 32 by hand to pull out the air outlet grille 3.

[0037] The filtering auxiliary mechanism in the scheme comprises a connecting frame 401, a loading card slot 402, a filtering screen plate 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 the frame opening position of the connecting frame 401 is provided with the loading card slot 402; the filtering screen plate body 403 is clamped in the loading card slot 402, and the front side of the filtering screen plate body 403 is symmetrically fixedly provided with the second handle 404; that is, after the air outlet grid 3 is pulled out and disassembled, the filtering screen plate body 403 needs to be disassembled again, the second handle 404 at the front side of the filtering screen plate body 403 is pulled by hand, the filtering screen plate body 403 is directly pulled out, and the impurities on the filtering screen plate body 403 can be cleaned.

[0038] When the adhesive cotton stick 510 needs to be disassembled, first, the inner threaded fastening cap body 507 is rotated to release the connection and fixation of the first and second butt joints 504 and 506, and then the adhesive cotton cylinder formed by the bearing disc 508 and the adhesive cotton stick 510 is disassembled, that is, the entire adhesive cotton cylinder is pulled out, wherein the impurity removing auxiliary assembly comprises a rotary control motor 501, a connecting shaft 502, a limiting baffle disc 503, a first butt joint 504, a connecting stud 505, a second butt joint 506, an inner threaded fastening cap body 507, a bearing disc 508, a loading insertion rod 509, an adhesive cotton stick 510 and a loading insertion slot body 511; the rotary control motor 501 is symmetrically fixedly arranged at the two sides of the air guide frame opening 12, and the rotary control motor 501 is connected with the connecting shaft 502, the connecting shaft 502 is insertedly arranged in the side wall of the air guide frame opening 12, one end of the connecting shaft 502 is fixedly provided with the limiting baffle disc 503, and the other side of the limiting baffle disc 503 is fixedly provided with the first butt joint 504; one side of the bearing disc 508 is fixedly provided with the connecting stud 505 at the center position, one end of the connecting stud 505 is fixedly provided with the second butt joint 506, and the connecting stud 505 is threadedly connected with the inner threaded fastening cap body 507; the second butt joint 506 and the first butt joint 504 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, and the second butt joint 506 and the first butt joint 504 are butted to form a threaded column; the other side of the bearing disc 508 is fixedly provided with the loading insertion rod 509 in the form of equidistant annular, the loading insertion rod 509 is insertedly connected with the loading insertion slot body 511 at the end of the adhesive cotton stick 510; the two ends of the adhesive cotton stick 510 are symmetrically provided with two loading insertion slot bodies 511, and the equidistant annular adhesive cotton stick 510 forms an adhesive cotton cylinder, and there is a gap between the adjacent adhesive cotton sticks 510.

[0039] In order to improve the cleaning efficiency and convenience of the adhesive cotton stick 510, the adhesive cotton stick 510 can be separately detached, that is, the loading slot body 511 at both ends of the adhesive cotton stick 510 is respectively inserted with the loading plug 509. When the adhesive cotton stick 510 needs to be removed, the bearing disc 508 provided at both ends is pulled outward until the loading plug 509 on the bearing disc 508 is separated from the loading slot body 511 at the end of the adhesive cotton stick 510. The dismounting work of the adhesive cotton stick 510 is completed, the operation is simple, and then the adhesive cotton stick 510 is cleaned or directly replaced with a new adhesive cotton stick 510.

[0040] After the adhesive cotton stick 510 and the filter screen plate body 403 are cleaned, they are installed. First, the adhesive cotton stick 510 is installed, that is, the loading slot body 511 at one end of the adhesive cotton stick 510 is inserted into the loading plug 509 on one of the bearing discs 508, and then the loading plugs 509 at other positions are connected with the adhesive cotton stick 510. Then, the loading plug 509 on the other bearing disc 508 is inserted with the loading slot body 511 at the other end of the adhesive cotton stick 510. Then, the entire adhesive cotton cylinder is sent into the inner cavity of the air guide frame opening 12, and the second butt joint body 506 at the end of the connecting stud 505 on the outside of the bearing disc 508 is butt jointed with the first butt joint body 504 on the limiting baffle 503. After butt jointing, the inner threaded fastening cap body 507 is rotated until the inner threaded fastening cap body 507 reaches the position where the first butt joint body 504 and the second butt joint body 506 are butt jointed, and one end of the inner threaded fastening cap body 507 is in close contact with the limiting baffle 503. The installation work of the adhesive cotton cylinder is quickly completed. Then, the filter screen plate body 403 is installed, that is, the filter screen plate body 403 is pressed and clamped in the loading clamping groove 402 of the air guide frame opening 12 front side connecting frame 401 by holding the second handle 404 with the hand. Finally, the air outlet grid 3 is installed, that is, the air outlet grid 3 is pressed and clamped in the installation clamping groove 14 on the embedded frame 13 by holding the first handle 32 with the hand.

[0041] Example two: based on example one, please refer to Figures 11-13When the air conditioning system is maintaining a pressure difference by supplying air, and when it is necessary to purify the input or output air (i.e., when the air contains harmful substances that need to be purified), this solution can install a purification auxiliary component at the air outlet or air inlet. A purification auxiliary structure is also provided between adjacent adhesive cotton swabs 510. This 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 the adhesive cotton swabs 510. At both sides, one end of the connecting cotton strip 602 is adapted to be inserted into the splicing slot 601 on the side wall of one of the adhesive cotton sticks 510, and the other end of the connecting cotton strip 602 is adapted to be inserted into the splicing slot 601 on the side wall of another adjacent adhesive cotton stick 510. A spherical cotton body 604 is provided in the middle of the connecting cotton strip 602; wherein a spherical cavity is provided in the spherical cotton body 604, and a receiving cavity 603 is provided in the connecting cotton strip 602, and the receiving cavity 603 is connected to the spherical cavity.

[0042] The adhesive cotton swab 510 has a splicing slot 601 on its side wall to facilitate the installation of the connecting cotton strip 602. Both ends of the connecting cotton strip 602 are respectively engaged with the splicing slot 601 on the side wall of the adhesive cotton swab 510, making the connecting cotton strip 602 easy to install and remove, facilitating later maintenance and replacement. The connecting cotton strip 602 has a receiving cavity 603, which is used to place appropriate purification agents or purification particles, or to wet the connecting cotton strip 602 with a purification agent. For disassembling the adhesive cotton swab 510 with the purification auxiliary structure, after disassembling the adhesive cotton swab 510, first disconnect two adjacent adhesive cotton strips... To disassemble the connecting cotton strips 602 between the sticks 510, simply hold the connecting cotton strip 602 by hand and pull it out, separating both ends of the connecting cotton strip 602 from the splicing slot 601. Then pull out all the connecting cotton strips 602 between adjacent adhesive cotton sticks 510. After all are disassembled, disassemble the adhesive cotton sticks 510 on both sides after the connecting cotton strips 602 are removed, that is, pull out the adhesive cotton sticks 510, separating the splicing slot 601 on the side of the adhesive cotton stick 510 from one end of the connecting cotton strip 602. Then pull out the connecting cotton strips 602 one by one. Repeat the same operation to disassemble all of them. Clean or replace the connecting cotton strips 602.

[0043] Wherein for the whole installation work of connecting the cotton strip 602 and the adhesive cotton stick 510, first take an adhesive cotton stick 510, and the splice card slot 601 on one side of the adhesive cotton stick 510 is respectively inserted with one end of the connecting cotton strip 602, after the insertion is completed, take another adhesive cotton stick 510, and the splice card slot 601 on one side of the adhesive cotton stick 510 is respectively inserted with the other end of the connecting cotton strip 602, all the adhesive cotton sticks 510 are installed according to the same operation above, until the required adhesive cotton stick 510 is installed, at this time the plurality of adhesive cotton sticks 510 form a cylindrical shape, at this time the last installed adhesive cotton stick 510 and the first installed adhesive cotton stick 510 still need to be installed the connecting cotton strip 602, at this time the middle part of the connecting cotton strip 602 needs to be pressed, so that the end of the connecting cotton strip 602 is aligned with the splice card slot 601 of the side wall of the adhesive cotton stick 510, then the end of the connecting cotton strip 602 is inserted into the splice card slot 601, after the adhesive cotton stick 510 and the connecting cotton strip 602 are integrally installed, the adhesive cotton stick 510 in a cylindrical shape is inserted and connected with the loading insertion rod 509 on the bearing disc 508.

[0044] In actual use, if some or local connecting cotton strips 602 between adjacent adhesive cotton sticks 510 are damaged, in order to solve the replacement and maintenance time, the impurity removing auxiliary assembly does not need to be disassembled, the connecting cotton strip 602 that needs to be replaced can be directly disassembled, that is, the middle part of the connecting cotton strip 602 is directly pulled out by hand, a new connecting cotton strip 602 is installed, and the middle part of the connecting cotton strip 602 needs to be pressed by the worker during this process, so that the connecting cotton strip 602 is in the corresponding curved shape, and the two ends of the connecting cotton strip 602 are close to the splice card slot 601 position on the adhesive cotton stick 510, then the end of the connecting cotton strip 602 is inserted into the splice card slot 601, and at the same time the connecting cotton strip 602 returns to the initial state.

[0045] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cleanroom differential pressure automatic adjustment device, comprising a support frame (1) and an air inlet pipe (2) disposed at the tail end of the support frame (1), wherein the inner cavity of the support frame (1) is provided with an air guide frame (12), and the front end of the support frame (1) is fixedly provided with an embedded frame (13). Its features are: The front end of the air guide frame (12) is provided with a filter auxiliary mechanism, and the inner cavity of the air guide frame (12) is provided with a dirt removal auxiliary component. The inner side of the embedded frame (13) is provided with a mounting slot (14), the mounting slot (14) is provided with an air outlet grille (3), and a rubber strip (31) is fixedly provided on the side of the air outlet grille (3). The front end of the air outlet grille (3) is symmetrically fixed with a first handle (32). The impurity removal auxiliary components include a rotary control motor (501), a connecting shaft (502), a limiting baffle (503), a first docking body (504), a connecting stud (505), a second docking body (506), an internal thread fastening cap (507), a bearing plate (508), a loading rod (509), an adhesive cotton swab (510), and a loading slot body (511). The rotary control motor (501) is symmetrically fixed on both sides of the air guide frame opening (12), and the rotary control motor (501) is connected to the connecting shaft (502). The connecting shaft (502) is inserted into the side wall of the air guide frame opening (12), and a limiting baffle (503) is fixedly provided at one end of the connecting shaft (502), and a first docking body (504) is fixedly provided on the other side of the limiting baffle (503).

2. The cleanroom differential pressure automatic adjustment device according to claim 1, characterized in that: The filter auxiliary mechanism includes a connecting frame (401), a loading slot (402), a filter screen (403), and a second handle (404); the connecting frame (401) is fixedly installed at the front end of the air guide frame (12), and the loading slot (402) is provided at the frame opening position of the connecting frame (401).

3. The cleanroom differential pressure automatic adjustment device according to claim 2, characterized in that: A filter screen plate (403) is snapped into the loading slot (402), and a second handle (404) is symmetrically fixed on the front side of the filter screen plate (403).

4. The cleanroom differential pressure automatic adjustment device according to claim 1, characterized in that: A connecting stud (505) is fixedly provided at the center of one side of the bearing plate (508), and a second mating body (506) is fixedly provided at one end of the connecting stud (505). An internal thread fastening cap (507) is threadedly connected to the connecting stud (505).

5. The cleanroom differential pressure automatic adjustment device according to claim 2, characterized in that: The second docking body (506) and the first docking body (504) are positioned in the same way and have the same number of sets. Both are half of a threaded column 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.

6. The cleanroom differential pressure automatic adjustment device according to claim 1, characterized in that: On the other side of the carrier plate (508), loading rods (509) are fixedly arranged in a ring at equal intervals. The loading rods (509) are adapted to be inserted into the loading slot body (511) at the end of the adhesive cotton swab (510).

7. The cleanroom differential pressure automatic adjustment device according to claim 1, characterized in that: The adhesive cotton swab (510) has two loading slots (511) symmetrically arranged at both ends, and the adhesive cotton swabs (510) arranged in a ring at equal intervals form an adhesive cotton tube, and there is a gap between adjacent adhesive cotton swabs (510).

8. The cleanroom differential pressure automatic adjustment device according to claim 7, characterized in that: A purification auxiliary structure is provided 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 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 inserted 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 inserted into the splicing slot (601) on the side wall of another adjacent adhesive cotton swab (510). A spherical cotton body (604) is provided in the middle of the connecting cotton strip (602).

9. The cleanroom differential pressure automatic adjustment device according to claim 8, characterized in that: The spherical cotton body (604) is provided with a spherical cavity, and the connecting cotton strip (602) is provided with a receiving cavity (603), and the receiving cavity (603) is connected to the spherical cavity.

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