An underground garage dehumidification and purification control integrated machine
By setting up filter purification components and self-cleaning components in the underground garage dehumidification and purification control integrated machine, the automatic replacement and self-cleaning of filter plates are realized, and the time-consuming and labor-intensive replacement of filter plates in the prior art is solved, and the degree of automation and convenience of use of the equipment is improved.
Patent Information
- Application Number
- CN202510232478.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2045-02-28
AI Technical Summary
The existing integrated floor dehumidifier of the underground garage needs to be replaced and cleaned after use for a period of time, resulting in large workloads and time-consuming work for the staff.
An integrated underground garage dehumidification and purification control machine is designed, including filter purification components and self-cleaning components. It can replace the filter plates by themselves when needed and self-clean the replaced filter plates, and use an oblique grille and lifting drive mechanism to achieve automatic replacement and cleaning.
It reduces the workload of staff, saves time and effort, improves the degree of automation of the equipment, and recycles the filter plates through self-cleaning components to maintain efficient operation of the equipment.
Smart Images

Figure CN119983407B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of dehumidification and purification machines, in particular to an all-in-one dehumidification and purification control machine for an underground garage. Background Art
[0002] Relative humidity refers to the percentage of water vapor in the air above saturation. Higher relative humidity indicates more humid air. In many areas of my country, particularly in high-humidity basins, underground garages suffer from severe humidity issues. The current solution is typically to install dehumidifiers within the garage.
[0003] There are two main types of dehumidifiers in existing underground garages: one is ceiling-mounted and the other is ground-mounted. The ground-mounted dehumidifier is easy to move and can be adjusted to its location as needed. However, this type of integrated dehumidifier has certain defects. After a period of use, the internal filter plate needs to be replaced and cleaned, which brings a large workload to the staff, and the process of replacing the filter plate is time-consuming and labor-intensive.
[0004] Therefore, those skilled in the art provide an all-in-one dehumidification and purification control machine for an underground garage to solve the problems raised in the above background technology. Summary of the Invention
[0005] The purpose of the present invention is to provide an integrated dehumidification and purification control machine for an underground garage. Through the provided filtering and purification components and self-cleaning components, the filter plate can be replaced automatically when needed, and the replaced filter plate can be self-cleaned and then recycled, thereby reducing the workload of the staff, saving time and effort while being easy to use, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above object, the present invention provides the following technical solutions:
[0007] An all-in-one dehumidification and purification control unit for an underground garage includes a body, a lower chamber is defined in the lower portion of the body, and an upper chamber is defined in the upper portion of the body. A partition is fixedly connected to the middle portion of the upper chamber, and a plurality of evenly distributed first exhaust fans are embedded in the side surfaces of the partition.
[0008] The partition separates the upper chamber into a left chamber and a right chamber, and a filtering and purifying component is provided in the left chamber, a dehumidifying mechanism is provided in the right chamber, and a self-cleaning component is provided in the lower chamber below the dehumidifying mechanism.
[0009] As a further solution of the present invention: the filtering and purification component specifically includes: an inclined grille embedded in the opening of the left chamber, a vertical slot is opened inside the inclined grille, and a through slot communicating with the lower chamber is opened at the bottom end of the vertical slot, the bottom end surface of the lower chamber is fixedly connected with two parallel horizontal linear guide rails, and two parallel strip plates are commonly provided above the two horizontal linear guide rails, the top surface of each of the strip plates is fixedly connected with a filter plate matching the vertical slot, the top of each of the horizontal linear guide rails is movably connected with two parallel horizontal linear motors, and the top surface of the horizontal linear motor is fixedly connected with four evenly distributed positioning columns, the bottom end surface of the strip plate is provided with a positioning hole matching the positioning column at the position corresponding to the positioning column, and the positioning column is movably connected to the positioning hole, and a lifting drive mechanism is symmetrically provided on the inner walls on both sides of the lower chamber below the through slot, for driving the strip plates to rise and fall along the through slot.
[0010] As a further solution of the present invention: the lifting drive mechanism specifically includes: a vertical linear guide rail fixed on the inner wall of the lower chamber, the outer side surface of the vertical linear guide rail is movably connected to a vertical linear motor, and one side of the vertical linear motor is fixedly connected to a telescopic motor, the output shaft of the telescopic motor is fixedly connected to a diaphragm, and one side of the diaphragm is fixedly connected to two parallel insertion rods, and slots matching the insertion rods are opened on both sides of the strip plate at positions corresponding to the insertion rods.
[0011] As a further solution of the present invention: a limiting groove is provided on the top wall of the left chamber above the vertical groove, and the limiting groove matches the filter plate.
[0012] As a further solution of the present invention: the dehumidification mechanism specifically includes: a condenser fixed on one side of the partition, a water outlet dryer fixedly connected to the side of the condenser away from the partition, and a heating wire fixedly connected to the side of the water outlet dryer away from the condenser, and a plurality of evenly distributed second exhaust fans embedded in the opening of the right chamber.
[0013] As a further solution of the present invention: the self-cleaning component specifically includes: an ultrasonic atomizer fixed on one side of the interior of the lower chamber, a pipe is provided between the ultrasonic atomizer and the water outlet of the condenser, and a plurality of evenly distributed atomizing nozzles are fixedly connected to one side of the ultrasonic atomizer, and a rotary ejector mechanism is provided on one side of the ultrasonic atomizer.
[0014] As a further solution of the present invention: the rotary ejector mechanism specifically includes: a rotating groove opened on the inner walls on both sides of the lower chamber, a rotating plate rotatably connected to the interior of the rotating groove, and a plurality of evenly distributed ejectors fixedly connected to one side of the rotating plate, a stepper motor embedded in the bottom end surface of the rotating groove, and the output shaft of the stepper motor fixedly connected to the rotating plate.
[0015] As a further solution of the present invention: the maximum rotation angle of the rotating plate is ninety degrees, and after the two rotating plates rotate ninety degrees, the ejector pins thereon match the filter holes on the filter plate.
[0016] As a further solution of the present invention: a sewage outlet communicating with the lower chamber is provided at the bottom end of one side surface of the machine body.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The present application sets up a filtering and purification component and a self-cleaning component, which can automatically replace the filter plate when needed, and self-clean the replaced filter plate, and then recycle it, reducing the workload of the staff, saving time and effort while being easy to use.
[0019] 2. The filtering and purification component of this application uses two filter plates for recycling. The filter plates can be replaced automatically without affecting the operation of the equipment. The overall degree of automation is high. During the replacement process, the oblique grille is used to effectively prevent impurities on the filter plate from passing through the oblique grille, thereby improving cleanliness.
[0020] 3. The present application is capable of collecting condensed water generated by the operation of the condenser for reuse by setting up a self-cleaning component. In addition, the rotary ejector mechanism can adjust its rotation state as needed, and complete the conduction of the filter holes on the filter plate without affecting the spray cleaning of the atomizing nozzle, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a structural diagram of an all-in-one dehumidification and purification control machine for an underground garage;
[0022] Figure 2 This is an internal view of the body of an all-in-one dehumidification and purification control unit for an underground garage;
[0023] Figure 3 This is a diagram showing the combination of a horizontal linear guide rail and a filter plate in an all-in-one dehumidification and purification control unit for an underground garage.
[0024] Figure 4 An underground garage dehumidification and purification control integrated machine Figure 3 A magnified view of part A;
[0025] Figure 5 This is a combined view of a rotating plate and a rotating tank in an all-in-one dehumidification and purification control unit for an underground garage;
[0026] Figure 6 This is a schematic diagram of a rotating plate in an underground garage dehumidification and purification control integrated machine after it is rotated 90 degrees.
[0027] In the figure: 1. body; 2. lower chamber; 3. upper chamber; 4. oblique grille; 5. vertical slot; 6. limit slot; 7. through slot; 8. horizontal linear guide; 9. horizontal linear motor; 10. strip plate; 11. positioning column; 12. positioning hole; 13. filter plate; 14. slot; 15. vertical linear guide; 16. vertical linear motor; 17. telescopic motor; 18. diaphragm; 19. plug rod; 20. partition; 21. first exhaust fan; 22. condenser; 23. water outlet dryer; 24. heating wire; 25. second exhaust fan; 26. ultrasonic atomizer; 27. pipe; 28. atomizing nozzle; 29. rotating tank; 30. rotating plate; 31. stepping motor; 32. ejector pin. DETAILED DESCRIPTION
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0029] As mentioned in the background technology of this application, the inventors have found through research that the dehumidifiers in existing underground garages are mainly divided into two types, one is ceiling-mounted and the other is ground-integrated. Among them, the ground-integrated dehumidifier is easy to transfer and its use location can be adjusted according to needs. However, this integrated dehumidifier has certain defects. After a period of use, the internal filter plate 13 needs to be replaced and cleaned, which brings a large workload to the staff, and the process of replacing the filter plate 13 is time-consuming and labor-intensive.
[0030] In order to solve the above-mentioned defects, the present application discloses an integrated dehumidification and purification control machine for an underground garage. Through the provided filtering and purification components and self-cleaning components, the filter plate 13 can be replaced automatically when needed, and the replaced filter plate 13 can be self-cleaned and then recycled, thereby reducing the workload of the staff, saving time and effort, and being easy to use.
[0031] The following will describe in detail how the solution of this application solves the above technical problems with reference to the accompanying drawings.
[0032] See also Figures 1 to 6In an embodiment of the present invention, an all-in-one dehumidification and purification control machine for an underground garage includes a body 1, a lower chamber 2 is provided at the lower portion of the body 1, and an upper chamber 3 is provided at the upper portion of the body 1. A partition 20 is fixedly connected to the middle position of the upper chamber 3, and a plurality of evenly distributed first exhaust fans 21 are embedded on the side of the partition 20; the partition 20 divides the upper chamber 3 into a left chamber and a right chamber, and a filter purification component is provided in the left chamber, a dehumidification mechanism is provided in the right chamber, and a self-cleaning component is provided in the lower chamber 2 below the dehumidification mechanism. The present application, through the provision of the filter purification component and the self-cleaning component, can automatically replace the filter plate 13 when needed, and can self-clean the replaced filter plate 13 for recycling, thereby reducing the workload of the staff, saving time and effort, and facilitating use.
[0033] In this embodiment, the filtering and purification component specifically includes: an oblique grille 4 embedded in the opening of the left chamber, a vertical slot 5 is opened inside the oblique grille 4, and a through slot 7 communicating with the lower chamber 2 is opened at the bottom end of the vertical slot 5, and the bottom end surface of the lower chamber 2 is fixedly connected to two parallel horizontal linear guide rails 8, and two parallel strip plates 10 are provided above the two horizontal linear guide rails 8. The top surface of each strip plate 10 is fixedly connected to a filter plate 13 matching the vertical slot 5, and the top end of each horizontal linear guide rail 8 is movably connected to two parallel horizontal linear motors 9, and the top surface of the horizontal linear motor 9 is fixedly connected to four evenly distributed positioning columns 11, and the bottom end surface of the strip plate 10 is provided with a positioning hole 12 matching the positioning column 11, and the positioning column 11 is movably connected to the positioning hole 12, and a lifting drive mechanism is symmetrically provided on the inner walls on both sides of the lower chamber 2 below the through slot 7, for driving the strip plate 10 to rise and fall along the through slot 7. The filtering and purification component of the present application adopts two filter plates 13 for recycling, and the filter plates 13 can be replaced automatically without affecting the operation of the equipment. The overall degree of automation is high. During the replacement process, the inclined grille 4 is used to effectively prevent impurities on the filter plate 13 from passing through the inclined grille 4, thereby improving cleanliness.
[0034] In this embodiment, the lifting drive mechanism specifically includes a vertical linear guide 15 fixed to the inner wall of the lower chamber 2. A vertical linear motor 16 is movably connected to the outer side of the vertical linear guide 15. A telescopic motor 17 is fixedly connected to one side of the vertical linear motor 16. A diaphragm 18 is fixedly connected to the output shaft of the telescopic motor 17. Two parallel insertion rods 19 are fixedly connected to one side of the diaphragm 18. Slots 14 matching the insertion rods 19 are defined on both sides of the strip plate 10 at positions corresponding to the insertion rods 19. The lifting drive mechanism can drive the strip plate 10 to rise and fall along the through slot 7, thereby completing the replacement of the filter plate 13.
[0035] In this embodiment, a limiting groove 6 is provided on the top wall of the left chamber above the vertical groove 5, and the limiting groove 6 matches the filter plate 13. The provision of the limiting groove 6 can further improve the stability between the vertical groove 5 and the filter plate 13.
[0036] In this embodiment, the dehumidification mechanism specifically includes: a condenser 22 fixed to one side of a partition 20; a water outlet dryer 23 fixedly connected to the side of the condenser 22 away from the partition 20; and a heating wire 24 fixedly connected to the side of the water outlet dryer 23 away from the condenser 22. A plurality of evenly distributed second exhaust fans 25 are embedded in the right chamber opening. The dehumidification mechanism can dehumidify the incoming air, thereby making the outgoing air sufficiently dry.
[0037] In this embodiment, the self-cleaning assembly specifically includes an ultrasonic atomizer 26 fixed to one side of the interior of the lower chamber 2. A pipe 27 connects the ultrasonic atomizer 26 to the water outlet of the condenser 22. A plurality of evenly distributed atomizing nozzles 28 are fixedly connected to one side of the ultrasonic atomizer 26. A rotary ejector mechanism is provided on one side of the ultrasonic atomizer 26. The self-cleaning assembly can collect condensed water generated by the operation of the condenser 22 for reuse.
[0038] In this embodiment, the rotary ejector mechanism specifically includes: a rotary groove 29 defined on the inner walls of both sides of the lower chamber 2. A rotary plate 30 is rotatably connected to the interior of the rotary groove 29, and a plurality of evenly distributed ejector pins 32 are fixedly connected to one side of the rotary plate 30. A stepper motor 31 is embedded in the bottom end surface of the rotary groove 29, and the output shaft of the stepper motor 31 is fixedly connected to the rotary plate 30. The rotary ejector mechanism can adjust its rotational state as needed to achieve conduction of the filter holes on the filter plate 13 without affecting the spray cleaning of the atomizing nozzle 28, thus facilitating operation.
[0039] In this embodiment, the maximum rotation angle of the rotating plate 30 is ninety degrees. After the two rotating plates 30 rotate ninety degrees, the ejector pins 32 thereon match the filter holes on the filter plate 13 .
[0040] In this embodiment, a sewage outlet is provided at the bottom end of one side of the body 1 and is communicated with the lower chamber 2. The sewage outlet is provided to facilitate the discharge of sewage generated when the self-cleaning assembly cleans the filter plate 13.
[0041] The working principle of the present invention is as follows: when in use, first, the underground garage dehumidification and purification control integrated machine is moved to the place of use, and then the filtering and purification component sends the filter plate 13 on the left into the vertical slot 5. Specifically, the two horizontal linear motors 9 corresponding to the left filter plate 13 run and move along the horizontal linear guide rail 8 until the left filter plate 13 reaches the bottom of the through slot 7 according to the preset program. Then, the vertical linear motor 16 of the lifting drive mechanism runs and moves along the vertical linear guide rail 15 until the insertion rod 19 reaches the slot 1 according to the preset program. 4 aligned position, then, the telescopic motor 17 runs and extends the output shaft, so that the insertion rod 19 is inserted into the slot 14, and the diaphragm 18 is against the strip plate 10. Then, the vertical linear motor 16 runs and rises along the vertical linear guide 15. During the process, the left strip plate 10 rises, and the positioning hole 12 thereon is disengaged from the positioning column 11 of the corresponding horizontal linear motor 9. The left filter plate 13 follows and rises along the through slot 7 into the vertical slot 5 until the left strip plate 10 is against the bottom of the through slot 7, and at this time, the top of the left filter plate 13 is against the top of the limit slot 6, as shown in FIG. Figure 2 shown.
[0042] Then, the underground garage dehumidification and purification control integrated machine starts to operate and dehumidify. During the process, the first exhaust fan 21 draws outside air into the upper chamber 3. The outside air is purified and filtered by the filter plate 13 when passing through the oblique grille 4. Subsequently, the first exhaust fan 21 sends the purified clean air to the condenser 22. The condenser 22 condenses the moisture in the air into liquid water, and the liquid water enters the ultrasonic atomizer 26 through the pipe 27. Subsequently, the air passes through the water outlet dryer 23, which uses condensation technology to remove moisture from the air for a second time. Then, the air passes through the heating wire 24, which uses electrical heating to evaporate water vapor and dew to achieve the dehumidification effect. Finally, the dehumidified air is drawn away by the second exhaust fan 25 and sent to the outside garage.
[0043] It should be noted that after the underground garage dehumidification and purification control integrated machine has been used for a period of time, a large amount of impurities will exist in the filter plate 13 in the vertical groove 5, which seriously affects the filtering effect of the filter plate 13. For this reason, the present application sets up a filtering and purification component and a self-cleaning component, which can replace the filter plate 13 by itself when needed, and self-clean the replaced filter plate 13, and then recycle it, reducing the workload of the staff, saving time and effort while being easy to use. The specific process of replacing the filter plate 13 by yourself is: first, the filter plate 13 on the left is lowered by the vertical linear motor 16 of the lifting drive mechanism until the positioning hole 12 on the left strip plate 10 is docked and reconnected with the positioning column 11 of the corresponding horizontal linear motor 9. Then, the telescopic motor 17 of the lifting drive mechanism is operated to retract the output shaft, so that the insertion rod 19 is disengaged from the slot 14. Then, the two horizontal linear motors 9 under the left strip plate 10 move to the left, and the two horizontal linear motors 9 under the right strip plate 10 also move to the left to reach the bottom of the through slot 7. Then, the lifting drive mechanism sends the filter plate 13 on the right into the vertical slot 5 to continue filtering and purification work.
[0044] The specific process of self-cleaning the replaced filter plate 13 is as follows: the stepper motor 31 of the rotary ejector mechanism rotates the rotating plate 30 in the rotating slot 29 outward 90 degrees, aligning the two rotating plates 30 with the replaced filter plate 13 in front. Then, all the horizontal linear motors 9 move synchronously to the right, causing the replaced filter plate 13 to move rightward with it, until the ejector pins 32 on the rotating plate 30 penetrate the filter holes of the filter plate 13 and eject the impurities blocked therein. Then, the filter plate 13 moves to the left, and the stepper motor 31 rotates the rotating plate 30 back to the rotating slot 29. Then, the filter plate 13 continues to move to the right to the preset position. Since the liquid water generated by the condenser 22 enters the ultrasonic atomizer 26 through the pipe 27, the ultrasonic atomizer 26 converts the liquid water into high-pressure water mist, which is then sprayed onto the filter plate 13 through the atomizing nozzle 28. Under the premise that the ejector pin 32 ejects the impurities blocked in the filter holes, the high-pressure water mist further completes the cleaning of the filter holes and the entire filter plate 13 from one side. The cleaned filter plate 13 only needs to wait for the next filtering work and replace another filter plate 13.
[0045] The present invention provides a filtering and purification component and a self-cleaning component, which can automatically replace the filter plate 13 when needed, and self-clean the replaced filter plate 13, and then recycle it, reducing the workload of the staff, saving time and effort while being easy to use.
[0046] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.
[0047] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. An underground garage dehumidification and purification control integrated machine, characterized in that: The machine comprises a body (1), wherein a lower chamber (2) is provided at the lower portion of the body (1), and an upper chamber (3) is provided at the upper portion of the body (1), a partition (20) is fixedly connected to the middle portion of the upper chamber (3), and a plurality of evenly distributed first exhaust fans (21) are embedded on the side of the partition (20); The partition (20) separates the upper chamber (3) into a left chamber and a right chamber, and a filtering and purifying component is provided in the left chamber, a dehumidifying mechanism is provided in the right chamber, and a self-cleaning component is provided in the lower chamber (2) below the dehumidifying mechanism; The filtering and purifying assembly specifically comprises: an oblique grille (4) embedded in the opening of the left chamber, a vertical slot (5) is provided inside the oblique grille (4), and a through slot (7) communicating with the lower chamber (2) is provided at the bottom end of the vertical slot (5), the bottom end surface of the lower chamber (2) is fixedly connected to two parallel transverse linear guide rails (8), two parallel strip plates (10) are provided above the two transverse linear guide rails (8), and the top surface of each strip plate (10) is fixedly connected to a filter plate (13) matching the vertical slot (5), and each The top end of the transverse linear guide rail (8) is movably connected to two parallel transverse linear motors (9), and the top end surface of the transverse linear motor (9) is fixedly connected to four evenly distributed positioning columns (11), and the bottom end surface of the strip plate (10) is provided with a positioning hole (12) corresponding to the position of the positioning column (11), and the positioning column (11) is movably connected to the positioning hole (12), and a lifting drive mechanism is symmetrically provided on the inner walls of both sides of the lower chamber (2) below the through slot (7), for driving the strip plate (10) to move up and down along the through slot (7); The dehumidification mechanism specifically comprises: a condenser (22) fixed on one side of the partition (20); a water outlet dryer (23) fixedly connected to the side of the condenser (22) away from the partition (20); and a heating wire (24) fixedly connected to the side of the water outlet dryer (23) away from the condenser (22); and a plurality of evenly distributed second exhaust fans (25) embedded in the opening of the right chamber; The self-cleaning component specifically comprises: an ultrasonic atomizer (26) fixed on one side of the interior of the lower chamber (2); a pipe (27) is provided between the ultrasonic atomizer (26) and the water outlet of the condenser (22); a plurality of evenly distributed atomizing nozzles (28) are fixedly connected to one side of the ultrasonic atomizer (26); and a rotary ejector mechanism is provided on one side of the ultrasonic atomizer (26).
2. The underground garage dehumidification and purification control integrated machine according to claim 1, characterized in that: The lifting drive mechanism specifically includes: a vertical linear guide rail (15) fixed on the inner wall of the lower chamber (2); the outer side surface of the vertical linear guide rail (15) is movably connected to a vertical linear motor (16); one side surface of the vertical linear motor (16) is fixedly connected to a telescopic motor (17); the output shaft of the telescopic motor (17) is fixedly connected to a diaphragm (18); and one side surface of the diaphragm (18) is fixedly connected to two parallel insertion rods (19); and slots (14) matching the insertion rods (19) are provided on both sides of the strip plate (10) at positions corresponding to the insertion rods (19).
3. The underground garage dehumidification and purification control integrated machine according to claim 2, characterized in that: A limiting groove (6) is provided on the top wall of the left chamber above the vertical groove (5), and the limiting groove (6) matches the filter plate (13).
4. The underground garage dehumidification and purification control integrated machine according to claim 3, characterized in that: The rotary ejector mechanism specifically includes: A rotating groove (29) is provided on the inner walls on both sides of the lower chamber (2), wherein a rotating plate (30) is rotatably connected to the interior of the rotating groove (29), and a plurality of evenly distributed ejector pins (32) are fixedly connected to one side of the rotating plate (30), a stepping motor (31) is embedded in the bottom end surface of the rotating groove (29), and an output shaft of the stepping motor (31) is fixedly connected to the rotating plate (30).
5. The underground garage dehumidification and purification control integrated machine according to claim 4, characterized in that: The maximum rotation angle of the rotating plate (30) is ninety degrees. After the two rotating plates (30) are rotated ninety degrees, the ejector pins (32) thereon match the filter holes on the filter plate (13).
6. The underground garage dehumidification and purification control integrated machine according to claim 5, characterized in that: A sewage outlet communicating with the lower chamber (2) is provided at the bottom end of one side of the machine body (1).
Citation Information
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Air purification device for ward
CN211526590U
Fresh air dehumidifier with dust falling function
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