Air treatment device for closed space

Abstract

The invention provides an air treatment device for a closed space. A filtering assembly comprises an air inlet shell and a filtering device. By utilizing the winding characteristics of the first winding shaft and the second winding shaft, one of the first winding shaft and the second winding shaft serves as a winding shaft of a new flexible filter screen, the other winding shaft serves as a winding shaft of an old flexible filter screen, when the filter screen is replaced, replacement can be achieved only by rotating the winding shaft, the fresh air filtering effect of the filtering assembly is guaranteed, and meanwhile the replacement efficiency is improved. And operation and maintenance personnel do not need to disassemble and replace a filter screen in the filter assembly for a long time. The frequency of disassembly detection and maintenance by operation and maintenance personnel is effectively reduced, frequent disassembly and replacement of a filter screen structure in the filter assembly are avoided, the overall service life of the filter assembly is prolonged, the workload of the operation and maintenance personnel is reduced, and the operation and maintenance cost is reduced. Meanwhile, replacement operation is easy, and practicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification and treatment, and in particular to an air treatment device for a confined space. Background Art

[0002] In confined space air treatment, where air circulation is required, filtration and air conditioning components are key subsystems for ensuring a safe environment within the confined space and stable equipment operation. These components work together to filter incoming air and regulate its temperature and humidity to provide a safe and comfortable environment.

[0003] Among them, the filter component is used to filter the air entering the enclosed space, and its components include a pre-filter, a high-efficiency particulate air filter, a chemical adsorption layer, a sealed valve, an air duct, a fan and other structures. Among them, the pre-processor is used to intercept large particle pollutants; the high-efficiency particulate air filter is used to intercept radioactive dust; and the chemical adsorption layer is used to neutralize toxic gases. The filtered air is delivered to the subsequent air-conditioning components through the fan and other structures. The air-conditioning components include an evaporator, a refrigeration unit, a fan, an electric heater and other structures, which are used to adjust the temperature and humidity of the air input by the filter component, and then enter the corresponding enclosed space for air conditioning. Some air handling devices also include a return air component, which will return the air entering the enclosed space to the air-conditioning component together with the fresh air from the filter component outlet, forming a cycle.

[0004] However, during the air filtration process, fresh air from the outside passes through the air duct inlet and enters the filter assembly. The filter installed in the filter assembly will filter out dust and other particulate pollutants in the incoming air. In order to maintain the efficient filtering effect during the long-term use of the filter, the operation and maintenance personnel need to regularly open the air inlet channel to maintain and replace the filter. This not only increases the frequency of disassembly, inspection and maintenance by the operation and maintenance personnel, but frequently opening the air inlet channel also reduces the overall service life of the filter assembly and increases the workload of the operation and maintenance personnel. Summary of the Invention

[0005] In view of the above problems, the present invention is proposed to provide an air treatment device for a confined space that overcomes the above problems or at least partially solves the above problems, and can solve the problem that the filter mesh in the filter assembly of the existing air treatment device in the confined space needs to be frequently disassembled and replaced.

[0006] Specifically, the present invention provides an air treatment device for a confined space, comprising a filter assembly and an air conditioner assembly, wherein the filter assembly comprises:

[0007] An air inlet housing is provided with an air inlet passage extending in a front-to-rear direction; an air inlet is provided at the front end of the air inlet passage;

[0008] A filter device, the filter device having a first reel, a second reel and a flexible filter screen; the flexible filter screen is wound on the first reel, and one end of the flexible filter screen is fixedly set on the second reel; the first reel and the second reel are rotatably set on the air inlet shell; the flexible filter screen has a plurality of filter sections arranged in sequence along its length direction, one of the filter sections is located in the air inlet channel.

[0009] Optionally, a coarse filter device is provided at the air inlet, and the coarse filter device is detachably provided;

[0010] The first scroll is arranged horizontally and is arranged on the upper side of the air inlet;

[0011] The second scroll is arranged horizontally and is arranged at the lower side of the air inlet;

[0012] A first steering shaft and a second steering shaft are provided in the air inlet housing. The first steering shaft is rotatably provided at the upper end of the filter section, and the second steering shaft is rotatably provided at the lower end of the filter section. The flexible filter screen bypasses the first steering shaft and the second steering shaft.

[0013] Optionally, two first rotating seats and two second rotating seats are rotatably provided on the air inlet housing, and both ends of the first reel are respectively mounted on the two first rotating seats; and both ends of the second reel are respectively mounted on the two second rotating seats;

[0014] Both ends of the first reel and both ends of the second reel are respectively provided with driving posts;

[0015] Connecting columns and docking columns are provided at corresponding positions of the first rotating seat and the second rotating seat;

[0016] The connecting column has a first mounting groove, and the docking column has a second mounting groove. The second mounting groove and the first mounting groove are arranged opposite to each other to form a driving hole, and the driving column is inserted into the corresponding driving hole.

[0017] The docking post is movably arranged relative to the connecting post, so that after the driving post is inserted into the first mounting slot from the side of the first mounting slot facing the second mounting slot, the docking post moves to block the first mounting slot;

[0018] A return spring is provided between the connecting column and the corresponding first rotating seat or second rotating seat.

[0019] Optionally, a card slot is provided in each of the first installation slot and the second installation slot, and a card block that cooperates with the card slot is provided on the driving column.

[0020] Optionally, the first reel is provided with a first connecting structure, and the second reel is provided with a second connecting structure;

[0021] One end of the flexible filter is provided with the second connection structure, the other end of the flexible filter is provided with the first connection structure, and the second connection structure is configured to be connected to the first connection structure;

[0022] The first reel and the second reel have the same structure, and one end of the first reel and the other end of the second reel are correspondingly arranged to be connected to the two ends of the flexible filter screen respectively.

[0023] Optionally, both the first connection structure and the second connection structure include:

[0024] A plurality of clamping posts, each of which is provided with a clamping hole;

[0025] A plurality of buckles, wherein the buckles and the clamping posts are alternately arranged in sequence;

[0026] The buckle of the first connecting structure is configured to be inserted into the connecting hole of the second connecting structure;

[0027] The buckle of the second connecting structure is configured to be inserted into the connecting hole of the first connecting structure.

[0028] Optionally, it also includes:

[0029] Two transmission channels are located on either side of the filter section; each transmission channel extends in the front-to-back direction; the outlet of each transmission channel is provided on the peripheral wall of the air inlet channel and is located on the air outlet side of the filter section; the inlet of each transmission channel is connected to the outside;

[0030] A transmission assembly is provided on the air inlet housing, and the transmission assembly includes:

[0031] two sliding plates, each of which is slidably disposed in one of the transmission channels along a front-to-rear direction and blocks the corresponding transmission channel;

[0032] The two first elastic devices are respectively connected to the two sliding plates, storing force when the sliding plates move backward; and causing the sliding plates to move forward when the wind pressure on the air outlet side of the filter section increases;

[0033] Furthermore, the sliding plate drives the second reel or the second rotating seat to rotate when moving forward.

[0034] Optionally, it also includes:

[0035] a fan configured to force airflow from front to rear in the air inlet passage;

[0036] The position detection device is configured to detect the position of the sliding plate, and after the sliding plate moves to a corresponding position, control the fan to stop so that the sliding plate moves forward.

[0037] Optionally, the transmission assembly further includes:

[0038] Two first pulleys are respectively fixedly mounted on the two second rotating seats; or are rotatably mounted on the air inlet housing, driving the second rotating seats to rotate via a gear assembly;

[0039] Two second pulleys are rotatably mounted on the air inlet housing; a one-way gear is coaxially mounted on the outer side of each second pulley;

[0040] Two transmission belts extending in a horizontal direction, each of the transmission belts being mounted on a corresponding first pulley and a second pulley;

[0041] Two first drive rods, the rear end of each first drive rod is connected to one of the sliding plates; the front end of each first drive rod is provided with a rack meshing with the outer teeth of the one-way gear, so that the corresponding sliding plate does not drive the transmission belt to move during the backward movement, but drives the transmission belt to move during the forward movement, thereby driving the first pulley and the second pulley to rotate.

[0042] Optionally, it also includes:

[0043] A drive motor is provided on the air inlet housing; an output shaft of the drive motor is connected to the second reel to drive the second reel to rotate.

[0044] In the air handling device for enclosed spaces of the present invention, the winding properties of the first and second reels are utilized, with one reel serving as the winding shaft for the new flexible filter and the other as the reel for the old flexible filter. When replacing the filter, the filter can be replaced simply by rotating the reel. This ensures the filter assembly's fresh air filtering effectiveness while eliminating the need for maintenance personnel to disassemble and replace the filter assembly for an extended period. This effectively reduces the frequency of disassembly, inspection, and maintenance required by maintenance personnel, avoids frequent disassembly and replacement of the filter assembly's filter structure, increases the overall service life of the filter assembly, reduces the workload of maintenance personnel, and reduces maintenance costs. Furthermore, the replacement operation is simple and highly practical.

[0045] Furthermore, in the enclosed space air treatment device of the present invention, the rotational connection structure between the first and second reels and the air inlet housing is configured as a rotatable first and second rotating bases. Relatively movable connecting posts and docking posts are provided on the first and second rotating bases to form an openable drive hole structure, thereby enabling the drive post to be clamped and released. This embodiment facilitates replacement of the first and second reels, and the operation process is simple and convenient.

[0046] Furthermore, in the enclosed space air treatment device of the present invention, the detachable connection structure between the first and second reels and the flexible filter facilitates replacement of the flexible filter. The flexible filter can be replaced by removing the first and second reels. Furthermore, the old first reel can be used as the second reel. Connecting the new flexible filter to the old one facilitates deployment without opening the internal structure, making installation easy.

[0047] Furthermore, in the air treatment device for a confined space of the present invention, when the filtering effect of the filter section is poor, negative pressure is generated on its air outlet side. The pressure difference between this area and the outside world is used to drive the first elastic device to accumulate force, and the pressure difference is used to store energy. When the negative pressure state is released and the flexible filter screen of the filter section is replaced, the energy stored in advance is released to drive the second scroll or the second rotating seat to rotate, completing the screen replacement. The entire process does not require human intervention, and the filter section can be automatically replaced, reducing operation and maintenance costs. It is also cleverly designed and reliable in operation.

[0048] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0050] Figure 1 is a schematic three-dimensional structural diagram of an air treatment device for a confined space according to one embodiment of the present invention;

[0051] Figure 2 is a schematic cross-sectional structural diagram of an air treatment device for a confined space according to one embodiment of the present invention;

[0052] Figure 3 is a schematic three-dimensional structural diagram of an air treatment device for a confined space according to one embodiment of the present invention with half of the air inlet channel removed;

[0053] Figure 4 is a schematic three-dimensional structural diagram of a filter device and its connecting parts in an air treatment device for a confined space according to one embodiment of the present invention;

[0054] Figure 5 is a schematic three-dimensional structural diagram of the cooperation between the second rotating seat or the first rotating seat and the driving column in the air treatment device for a confined space according to one embodiment of the present invention;

[0055] Figure 6 is a schematic cross-sectional structural diagram of a second rotating base or a first rotating base in an air treatment device for a confined space according to one embodiment of the present invention;

[0056] Figure 7 1 is a schematic perspective view of a partially schematic three-dimensional structure of an air treatment device for a confined space according to one embodiment of the present invention, with part of the transmission channel removed;

[0057] Figure 8 2 is a schematic perspective view of a partially schematic three-dimensional structure of an air treatment device for a confined space according to one embodiment of the present invention, with part of the transmission channel removed;

[0058] Figure 9 is a partial schematic three-dimensional structural diagram of an air treatment device for a confined space according to one embodiment of the present invention, with part of the pressurization channel removed;

[0059] Figure 10 is a schematic three-dimensional structural diagram of a one-way gear meshing with a rack in an air treatment device for a confined space according to one embodiment of the present invention;

[0060] Figure 11 This is a schematic three-dimensional structural diagram of a one-way transmission structure of one embodiment of an air treatment device for a confined space according to one embodiment of the present invention;

[0061] Figure 12 This invention Figure 2 A magnified view of part A in FIG;

[0062] Figure 13 The invention relates to a principle frame for connecting a filter component and an air conditioning component in an air treatment device for a confined space with a confined space and a return air component. DETAILED DESCRIPTION

[0063] Refer to the following Figures 1 to 13To describe the air treatment device for a confined space according to an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0064] Unless otherwise expressly defined or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be broadly interpreted. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0065] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0066] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0067] Figure 1 FIG. 1 is a schematic three-dimensional structural diagram of an air treatment device for a confined space according to an embodiment of the present invention. Figure 1 As shown, and reference Figures 2 to 13 The embodiment of the present invention provides an air treatment device for a confined space, comprising a filter assembly 100 and an air conditioner assembly. The filter assembly 100 comprises an air inlet housing 1 and a filter device 4.

[0068] An air inlet channel 2 extending in the front-to-back direction is provided in the air inlet housing 1; an air inlet 3 is provided at the front end of the air inlet channel 2. Specifically, the rear end is an air outlet connected to the air conditioner assembly.

[0069] The filter device 4 comprises a first reel 5, a second reel 6 and a flexible filter screen 7. Specifically, the flexible filter screen 7 can be a nylon mesh structure or a flexible fiber mesh. The first reel 5 and the second reel 6 are both extended in the longitudinal direction and arranged in the air inlet housing 1.

[0070] The flexible filter screen 7 is wound around the first reel 5, and one end of the flexible filter screen 7 is fixedly mounted on the second reel 6. Specifically, the flexible filter screen 7 has multiple turns and can be wound around the first reel 5. The rotation of the second reel 6 can drive the flexible filter screen 7 to rotate onto the second reel 6. In the initial state, the unused flexible filter screen 7 is wound around the first reel 5, which is defined as the first filter section, and the following are the second filter section and the third filter section.

[0071] The first and second reels 5 and 6 are rotatably mounted on the air inlet housing 1. Specifically, receptacles can be provided on either side of the air inlet housing 1, allowing the ends of the first and second reels 5 and 6 to be inserted into the receptacles. Alternatively, bearing seats can be provided within the receptacles, allowing the ends of the first and second reels 5 and 6 to be inserted into the bearing seats, achieving a rotatable connection.

[0072] The flexible filter screen 7 has a plurality of filter sections arranged in sequence along its length, and one of the filter sections is located in the air inlet channel 2. Specifically, the flexible filter screen 7 is formed by splicing together a plurality of filter sections. The length of each filter section matches the height of the air inlet channel 2, so that each filter section can completely close the air inlet channel 2 when unfolded. In the initial state, the unused flexible filter screen 7 is wound on the first reel 5, which is defined as the first filter section, followed by the second filter section, the third filter section..., and the first filter section is used first. When its filtering effect is not ideal and needs to be replaced, the second reel 6 can be rotated to rotate the second filter section to a position that closes the air inlet channel 2, so that it achieves the filtering effect of the air inlet channel 2. When the filtering effect of the second filter section is not ideal, the third filter section can be rotated to a position that closes the air inlet channel 2.

[0073] During operation of the enclosed space air treatment device of this embodiment, the air inlet duct 2 within the air inlet housing 1 of the filter assembly 100 performs normal filtering and ventilation, with fresh air entering the air inlet duct 2 from the air inlet 3. Initially, the flexible filter screen 7 is wound around the first reel 5, with its other end fixedly connected to the second reel 6. The first filter segment of the multiple filter sections is first extended into the ventilation duct to filter the fresh air entering from the air inlet 3. If the first filter segment becomes unsatisfactory after a period of use and requires replacement, the second reel 6 is rotated to position the second filter segment to close the air inlet duct 2. This automatically replaces the filter screen 44 with a new one, and the used filter screen 44 is automatically reeled up. If the second filter segment becomes unsatisfactory after a period of use, the above steps are repeated, with the third filter segment rotated to close the air inlet duct 2 to complete the filtering function. When the last filter section is used up, the first and second reels 5, 6, can be replaced entirely at the air inlet 3. Alternatively, the second reel 6 that has been wound up with the used filter section can be replaced, leaving the first reel 5 in place. The second reel 6, pre-wound with a new flexible filter screen 7, is then installed in the corresponding position. The other end of the flexible filter screen 7 is mounted on the upper first reel 5, achieving reverse winding, with the first reel 5 collecting the old flexible filter screen 7.

[0074] In an embodiment of the present invention, the winding characteristics of the first reel 5 and the second reel 6 are utilized, with one of the reels serving as the winding shaft for the new flexible filter 7 and the other serving as the winding shaft for the old flexible filter 7. When replacing the filter 44, the replacement can be achieved by simply rotating the reel. This ensures the fresh air filtering effect of the filter assembly 100 while eliminating the need for maintenance personnel to disassemble and replace the filter in the filter assembly 100 for a significant period of time. This effectively reduces the frequency of disassembly, inspection, and maintenance by maintenance personnel, avoids frequent disassembly and replacement of the filter 44 structure in the filter assembly 100, increases the overall service life of the filter assembly 100, reduces the workload of maintenance personnel, and reduces maintenance costs. Furthermore, the replacement operation is simple and highly practical.

[0075] In some embodiments of the present invention, Figure 2 、 3 As shown in Figures 4 and 5, the shaft ends of the first and second reels 5 and 6 are driven and rotated by a drive motor mounted on the air inlet housing 1. The drive motor is a programmable motor, which will not be further described here. As the drive motor drives the first and second reels 5 and 6 to reel in and out, it can control the drive stroke according to the length of the filter section, ensuring that each filter section completely blocks the ventilation channel. This embodiment achieves automated control, ensuring precise control and reducing manual operation.

[0076] In some embodiments of the present invention, Figure 2 、 3 As shown in Figure 4, the drive motor is a self-locking motor. The self-locking motor can lock in the current position after driving the first scroll 5 and the second scroll 6 to rotate and switch the filtering section, preventing the first scroll 5 and the second scroll 6 from rotating due to external force.

[0077] In some embodiments of the present invention, Figure 2 、 3 As shown in Figures 4 and 5, the air inlet housing 1 is also equipped with a filter blockage degree detection device. Specifically, the filter blockage degree detection device can be provided by setting a wind speed tester or a wind pressure sensor on both sides of the flexible filter 7 in the air inlet housing 1 to detect the wind speed or wind pressure on both sides, thereby making a judgment on the blockage condition of the flexible filter 7. When the difference in wind speed or wind pressure on both sides exceeds a certain value, a signal is sent to the controller, and the controller sends a control signal to the drive motor to drive the second reel 6 to rotate the corresponding stroke, thereby realizing the replacement of the filter. In this embodiment, the filter blockage degree detection device can realize automatic detection and replacement, reduce human intervention, liberate operation and maintenance personnel, and reduce operation and maintenance costs.

[0078] In some embodiments of the present invention, Figure 2 、 3 As shown in Figures 12, a coarse filter device 8 is provided at the air inlet 3, and the coarse filter device 8 is detachably provided. Specifically, the coarse filter device 8 can be removed from the position of the air inlet 3, making it convenient to remove and replace the filter device 4.

[0079] The first reel 5 is horizontally disposed above the air inlet 3. The second reel 6 is horizontally disposed below the air inlet 3. Specifically, the first reel 5 and the second reel 6 are located on the same vertical plane. This allows the flexible filter 7 disposed between the first reel 5 and the second reel 6 to filter the incoming wind perpendicular to the air inlet duct 2.

[0080] The air inlet housing 1 is equipped with a first steering shaft 9 and a second steering shaft 10. The first steering shaft 9 is rotatably mounted at the upper end of the filter section, while the second steering shaft 10 is rotatably mounted at the lower end of the filter section. The flexible filter 7 passes around the first and second steering shafts 9, 10. Specifically, the first and second steering shafts 9, 10 are longitudinally arranged, with their ends rotatably mounted on the side walls of the air inlet housing 1 or bearing seats provided therein via bearings. The first steering shaft 9 is located at the upper side, while the second steering shaft 10 is located at the lower side. The flexible filter 7 diffracts around the periphery of the first and second steering shafts 9, 10, forming a "U"-shaped structure. The flexible filter 7 passes around the upper side of the first steering shaft 9 and the lower side of the second steering shaft 10. The distance between the first steering shaft 9 and the top wall of the air inlet housing 1, and the distance between the second steering shaft 10 and the bottom wall of the air inlet housing 1, must match the thickness of the flexible filter 7. In this embodiment, the flexible filter screen 7 is wound around multiple shafts, which not only serves to clamp the flexible filter screen 7 but also prevents the flexible filter screen 7 from being dislocated. At the same time, it serves the purpose of tensioning the flexible filter screen 7, ensuring that the windward surface of the effective filtering section of the flexible filter screen 7 is perpendicular to the air inlet channel 2, thereby ensuring the filtering effect.

[0081] In some embodiments of the present invention, as shown in Figure 12, the coarse filtration device 8 includes a filter frame 38, a filter screen is disposed within the filter frame 38, and a mounting groove 62 is provided at the air inlet 3 of the air inlet channel 2. The filter frame 38 can be placed in the mounting groove 62 for removable installation. Furthermore, a magnet can be provided at one end of the filter frame 38 facing the mounting groove 62, and an armature can be provided at the other end of the mounting groove 62 facing the filter frame 38 to ensure reliability after installation.

[0082] In some embodiments of the present invention, Figure 4 、 5 As shown, two first rotating seats 11 and two second rotating seats 12 are rotatably mounted on the air inlet housing 1. The two ends of the first reel 5 are respectively mounted on the two first rotating seats 11; the two ends of the second reel 6 are respectively mounted on the two second rotating seats 12. Specifically, the rotation of the first and second rotating seats 11, 12 drives the corresponding first and second reels 5, 6 to rotate. The first and second rotating seats 11, 12 can be rotatably connected to the air inlet housing 1 via bearing seats. The rotating axes of the first and second rotating seats 11, 12 are coaxial with the corresponding reels.

[0083] Drive posts 13 are provided at both ends of the first reel 5 and the second reel 6. Connecting posts 14 and docking posts 15 are provided at corresponding positions on the first rotating base 11 and the second rotating base 12. In other words, a connecting post 14 and a docking post 15 are provided on one side of each first rotating base 11 and each second rotating base 12 toward the center of the two rotating bases.

[0084] The connecting post 14 has a first mounting slot 16, and the docking post 15 has a second mounting slot 17. The second mounting slot 17 and the first mounting slot 16 are arranged opposite each other to form a drive hole 18, into which the drive post 13 is inserted. Specifically, the center of the drive hole 18 is coaxial with the rotation center of the drive post 13. After the first mounting slot 16 and the second mounting slot 17 align to form the travel drive hole 18, the size of the drive hole 18 exactly matches the size of the drive post 13, and the corresponding rotating seat can drive the corresponding reel to rotate.

[0085] The docking column 15 is movably arranged relative to the connecting column 14, so that after the driving column 13 is inserted into the first mounting groove 16 from the side of the first mounting groove 16 facing the second mounting groove 17, the docking column 15 moves to block the first mounting groove 16. Specifically, the docking column 15 moves along the radial direction of the first rotating seat 11 or the second rotating seat 12, and the connecting column 14 is arranged in the corresponding radial direction. A slider 39 with a trapezoidal cross-section is provided at the bottom of the docking column 15, and a slide groove 40 with a trapezoidal cross-section is provided on the mounting surface of the first rotating seat 11 or the second rotating seat 12, and the slide groove 40 extends along the radial direction of the first rotating seat 11 or the second rotating seat 12. Therefore, the docking column 15 can only move along the radial direction of the first rotating seat 11 or the second rotating seat 12. The docking column 15 is moved close to the center of the first rotating seat 11 or the second rotating seat 12 so that the second mounting groove 17 thereon and the first mounting groove 16 on the connecting column 14 are close to the travel drive hole 18, thereby clamping the drive column 13 inserted therein.

[0086] A return spring 19 is provided between the connecting post 14 and the corresponding first rotating seat 11 or second rotating seat 12. The return spring 19 is arranged along the radial movement path of the connecting post 14. When the second mounting slot 17 on the docking post 15 forms the drive hole 18 with the first mounting slot 16, the return spring 19 is compressed, applying a force to move the docking post 15 toward the connecting post 14, causing the docking post 15 and the connecting post 14 to clamp the drive post 13. To unlock the docking post 15, the docking post 15 is pulled radially outward, further compressing the return spring 19, allowing the drive post 13 to disengage from the first mounting slot 16 and the second mounting slot 17, thereby achieving unlocking.

[0087] When the first reel 5 or the second reel 6 needs to be disassembled and assembled, the abutment column 15 on the first rotating seat 11 or the second rotating seat 12 is pulled outward along the radial direction of the corresponding seat body, the reset spring 19 is compressed, the second mounting groove 17 is moved outward, the driving hole 18 is opened, the driving column 13 in the driving hole 18 is separated from between the first mounting groove 16 and the second mounting groove 17, and the first reel 5 and the second reel 6 are unlocked. When assembling, the abutment column 15 is pulled outward, the area formed by the second mounting groove 17 and the first mounting groove 16 is opened. The driving column 13 is inserted between the second mounting groove 17 and the first mounting groove 16. The abutment column 15 is released, the second mounting groove 17 moves towards the first mounting groove 16 under the action of the reset spring 19, the driving hole 18 is formed, the driving column 13 is limited in the driving hole 18, clamping is formed, and assembly is achieved.

[0088] In the embodiment of the application, the rotating connection structure between the first reel 5 and the second reel 6 and the air inlet shell 1 is provided as the first rotating seat 11 and the second rotating seat 12 which can rotate, the connecting column 14 and the abutment column 15 which can move relative to each other are arranged on the first rotating seat 11 and the second rotating seat 12, the opening and closing type driving hole 18 structure is formed, and the clamping and separation of the driving column 13 in the driving hole 18 are achieved. In the embodiment, the first reel 5 and the second reel 6 are conveniently replaced, and the operation process is simple and convenient.

[0089] In some embodiments of the application, as shown in Figure 5 , rubber pads are arranged in the first mounting groove 16 and the second mounting groove 17. The rubber pads are used to increase the friction between the clamped driving column 13 and the driving column 13. The first rotating seat 11 and the second rotating seat 12 can effectively drive the driving column 13 and the corresponding reel to rotate.

[0090] In some embodiments of the application, as shown in Figure 3 , 4 , the first mounting groove 16 and the second mounting groove 17 are each provided with a clamping groove 20, and the driving column 13 is provided with a clamping block 21 matched with the clamping groove 20. When assembling, the clamping block 21 on the driving column 13 is inserted into the corresponding side clamping groove 20. The driving column 13 will not slip during the clamping and rotating process of the first mounting groove 16 and the second mounting groove 17, and reliable synchronous rotation is achieved.

[0091] In some alternative embodiments of the application, the driving column 13 is a rectangular column, and the first mounting groove 16 and the second mounting groove 17 are U-shaped groove structures matched with the outer edges of the rectangular column. The driving hole 18 formed by the cooperation of the first mounting groove 16 and the second mounting groove 17 is a rectangular structure. After the driving column 13 is inserted into the driving hole 18, the rotation of the first rotating seat 11 and the second rotating seat 12 can smoothly drive the driving column 13 to rotate.

[0092] In some embodiments of the present application, as shown in Figure 4 、 5 The first reel 5 is provided with a first connecting structure 22, and the second reel 6 is provided with a second connecting structure 23.

[0093] One end of the flexible filter screen 7 is provided with the second connecting structure 23, and the other end of the flexible filter screen 7 is provided with the first connecting structure 22. The second connecting structure 23 is configured to be connected to the first connecting structure 22. That is, one end of the flexible filter screen 7 with the first connecting structure 22 is connected to the second reel 6, and one end of the flexible filter screen with the second connecting structure 23 is connected to the first reel 5. The first reel 5 and the second reel 6 are consistent in structure, and one end of the first reel 5 corresponds to the other end of the second reel 6 to be connected to the two ends of the flexible filter screen 7, respectively.

[0094] In the embodiments of the present application, the detachable connecting structure between the first reel 5 and the second reel 6 and the flexible filter screen 7 facilitates the replacement of the flexible filter screen 7. The replacement of the flexible filter screen 7 can be realized by detaching the first reel 5 and the second reel 6. Meanwhile, the old first reel 5 can be used as the second reel 6, and after connecting the new flexible filter screen 7 with the old flexible filter screen 7, the flexible filter screen 7 is facilitated to be unfolded without opening the internal structure, and is convenient to install.

[0095] In some embodiments of the present application, as shown in Figure 5 The first connecting structure 22 and the second connecting structure 23 each include a plurality of clamping columns 24 and a plurality of buckles 26.

[0096] Each clamping column 24 is provided with a clamping hole 25. The buckles 26 and the clamping columns 24 are alternately arranged in sequence. Specifically, the clamping columns 24 and the buckles 26 are arranged in sequence along the same longitudinal direction. The buckles 26 of the first connecting structure 22 are configured to be inserted into the clamping holes 25 of the second connecting structure 23. The buckles 26 of the second connecting structure 23 are configured to be inserted into the clamping holes 25 of the first connecting structure 22. That is, the clamping holes 25 and the buckles 26 on the first connecting structure 22 and the second connecting structure 23 are arranged in staggered manner, facilitating one-to-one matching when they are connected. The arrangement of the plurality of clamping columns 24 and the plurality of buckles 26 ensures the reliability of the connection between the first reel 5 or the second reel 6 and the flexible filter screen 7, and the stress points are uniformly distributed, which cannot be easily pulled apart, ensuring reliable connection. Moreover, the structure of the column and the hole facilitates processing and is low in cost.

[0097] In some embodiments of the present application, as shown in Figure 5 The clamping columns 24 and the buckles 26 are made of rubber material, which increases the friction force during connection and further improves the connection strength during connection.

[0098] In some embodiments of the present invention, Figure 7 、 8 As shown, the air treatment device for a confined space further includes: two transmission channels 27 and a transmission assembly.

[0099] The two transmission channels 27 are located on either side of the filter section. Specifically, the transmission channels 27 are located on both sides of the filter section in the longitudinal direction. The two transmission channels 27 extend in the front-to-back direction. The outlet of each transmission channel 27 is located on the peripheral wall of the air inlet channel 2 and is located on the air outlet side of the filter section. The inlet of each transmission channel 27 is connected to the outside world. Specifically, the outlet of the transmission channel 27 is located toward the rear side and is located in the air inlet channel 2, for connecting the air inlet channel 2 with the transmission channel 27. The inlet of the transmission channel 27 is used to connect the outside world with the transmission channel 27.

[0100] The transmission assembly is disposed on the air inlet housing 1 , and includes two sliding plates 28 and two first elastic devices 29 .

[0101] Each sliding plate 28 is slidably disposed within a transmission channel 27 in the forward-backward direction, blocking the corresponding transmission channel 27. Specifically, the sliding plate 28 slides within the transmission channel 27, allowing only the transmission channel 27 to move. The sliding plate 28 slides within the area between the outlet and inlet of the transmission channel 27, forming two sections: one between the outlet side of the air inlet channel 2 and the transmission channel 27, and the other between the transmission channel 27 and the outside world. The pressure difference between these two areas drives the sliding plate 28 to move.

[0102] The two first elastic devices 29 are respectively connected to the two sliding plates 28, and store force when the sliding plates 28 move backward; when the wind pressure on the air outlet side of the filter section increases, the sliding plates 28 are prompted to move forward. In other words, the first elastic device 29 causes the sliding plates 28 to undergo elastic deformation during the backward movement of the sliding plates 28, thereby generating elastic force and storing force. The power for the backward movement of the sliding plates 28 comes from the pressure difference on both sides of the sliding plates 28. When the sliding plates 28 move forward, they drive the second reel 6 or the second rotating seat 12 to rotate. In other words, when the sliding plates 28 move forward, they will drive the second reel 6 or the second rotating seat 12 to rotate, thereby achieving the purpose of switching the filter sections.

[0103] Because the fan 30 used to draw air into the enclosed space is highly powerful, negative pressure easily forms on the outlet side of the filter section. However, due to the poor filtering effect of the filter screen 44, the amount of outside air entering the filter section's outlet side into the air inlet duct 2 is small, and the fan 30 continues to operate at its original power. Therefore, the negative pressure formed on the outlet side of the filter section decreases as the filter screen 44 becomes clogged, until the pressure difference between the internal pressure on the outlet side of the filter section and the outside air is sufficient to overcome the damping force of the first elastic device 29, driving the sliding plate 28 backward. During this backward movement, the second reel 6 or the second rotating base 12 is not driven to rotate. As the sliding plate 28 moves backward, after reaching its limit position, the fan 30 stops. At this point, the negative pressure on the outlet side of the filter section is relieved, and the pressure on both the inlet and outlet sides of the filter section returns to normal. Under the elastic force of the first elastic device 29, the sliding plate 28 is driven forward to return to its original position. During the forward movement, the second reel 6 or the second rotating seat 12 is driven to rotate, thereby switching the flexible filter screen 44 of the filter section.

[0104] In an embodiment of the present invention, when the filtration effect of a filter section is poor, negative pressure is generated on the air outlet side. The pressure difference between this area and the outside world is used to drive the first elastic device 29 to accumulate force, thereby storing energy. When the negative pressure is released and the flexible filter screen 7 of the filter section is replaced, the pre-stored energy is released to drive the second reel 6 or the second rotating seat 12 to rotate, completing the screen replacement. The entire process requires no human intervention, achieving automatic replacement of the filter section and reducing operation and maintenance costs. The design is ingenious and the operation is reliable.

[0105] In some embodiments of the present invention, Figure 7 、 8 As shown, the air handling device for a confined space further includes a fan 30 and a position detection device 31. The fan 30 is configured to force airflow from front to back in the air inlet channel 2. Specifically, the fan 30 is a bearing fan 30, which is disposed at the rear end of the air inlet channel 2.

[0106] The position detection device 31 is configured to detect the position of the sliding plate 28. After the sliding plate 28 moves to the corresponding position, the fan 30 is controlled to stop, so that the sliding plate 28 moves forward. Specifically, the position detection device 31 is a position sensor. When the sliding plate 28 slides to the extreme position, the position sensor sends a signal to the controller, and the controller controls the fan 30 to stop, thereby achieving subsequent pressurization. The position detection device 31 in this embodiment can control the distance moved by the sliding plate 28. When it moves a certain distance, it can drive the second scroll 6 or the second rotating seat 12 to rotate to complete the switching of the completed filter section, and then stops moving. This further improves the degree of automated control.

[0107] In some embodiments of the present invention, Figure 8 、 9 As shown, the air treatment device for a confined space also includes: two boost channels 41 and two boost plates 42. The inlet of each boost channel 41 is a boost hole 43, and the two boost holes 43 are respectively arranged on the side walls of the two transmission channels 27. The outlet of each boost channel 41 is arranged on the side wall of the corresponding transmission channel 27 and is located on the rear side of the corresponding inlet; the outlet of each boost channel 41 is provided with a filter 44. Specifically, the boost channel 41 is also used to connect the outside world with the inside of the outlet side of the filter section, and its inlet and outlet are arranged at both ends of the area where the sliding plate 28 moves. This allows the inlet to communicate with the outside world, and the outlet to communicate with the inside of the transmission channel 27. The filter 44 at the outlet is used to prevent foreign matter from entering the transmission channel 27 and flowing into the air inlet channel 2 when the boost channel 41 is turned on.

[0108] Each pressurizing plate 42 is rotatably mounted at a pressurizing hole 43 through its center.

[0109] Each sliding plate 28 is provided with a rearward-extending stopper 45 on its corresponding side edge. The stopper 45 has a greater width in the front-to-back direction than the supercharging plate 42. As the sliding plate 28 moves backward, the stopper 45 abuts against the supercharging plate 42, preventing the supercharging plate 42 from opening under the influence of negative pressure. After the sliding plate 28 passes over the supercharging plate 42, the supercharging plate 42 opens under the influence of wind pressure. External air enters the supercharging duct 41 and is pressurized. In other words, as the sliding plate 28 moves backward, the abutment of the stopper 45 against the supercharging plate 42 prevents the inlet of the supercharging duct 41 from opening, preventing external air from entering the supercharging duct 41 through the inlet. However, after passing over the supercharging plate 42 at the inlet, the supercharging duct 41 is opened, allowing external air to enter the air inlet duct 2 through the outlet after passing through the inlet of the supercharging duct 41, thereby achieving internal supercharging. When the boost plate 42 is closed, its axis of rotation is in the middle, which does not affect closure and rotation. Even if the boost plate 42 is rotated 180°, it can still be used. When fully closed, the boost is turned off, but the filter section has already rotated a certain angle, achieving boost, and the boost channel 41 is no longer needed. The sliding plate 28 can then return to its original position.

[0110] When this embodiment is in use, as the sliding plate 28 gradually moves backward from its initial position, the stopper 45 abuts the supercharging plate 42, preventing the inlet of the supercharging channel 41 from opening. This prevents outside air from entering the supercharging channel 41 through the inlet. However, after passing the supercharging plate 42 at the inlet, the supercharging channel 41 is opened, allowing outside air to enter the air inlet 2 through the outlet after entering the supercharging channel 41, thereby achieving supercharging within the supercharging channel 41. After supercharging, the sliding plate 28 cannot move further backward due to pressure balance. Therefore, under the action of the first elastic device 29, the sliding plate 28 moves forward. Even after the supercharging plate 42 is fully closed, shutting off supercharging, the filter section has already rotated a certain angle, achieving supercharging, and no longer needs supercharging from the supercharging channel 41. The sliding plate 28 can continue to return to its initial position. This embodiment serves to assist supercharging, further improving the stability of the entire system.

[0111] In some embodiments of the present invention, Figure 7 、 8 As shown, the transmission assembly further includes: two first pulleys 32 , two second pulleys 33 , two transmission belts 35 and two first driving rods 36 .

[0112] The two first pulleys 32 are fixedly mounted on the two second rotating bases 12, or rotatably mounted on the air inlet housing 1. They drive the second rotating bases 12 to rotate via a gear assembly. Specifically, the gear assembly functions to reverse direction and adjust the transmission ratio, enabling the second rotating bases 12 to rewind. By setting a suitable transmission ratio, the movement of the sliding plate 28 can meet the switching of filter sections, allowing the new filter section to be used for filtration.

[0113] Two second pulleys 33 are rotatably mounted on the air inlet housing 1. A one-way gear 34 is coaxially mounted on the outer side of each second pulley 33. Specifically, the one-way gear 34 serves to transmit power in one direction, so that the second pulleys 33 can only transmit power in a single direction under the action of the rear drive source.

[0114] The two transmission belts 35 extend horizontally, and each transmission belt 35 is mounted on the corresponding first pulley 32 and second pulley 33. Specifically, the transmission belt 35 can be a toothed belt, and the first pulley 32 and the second pulley 33 can be a pulley structure with a toothed groove structure to make power transmission more reliable.

[0115] The rear end of each first drive rod 36 is connected to a sliding plate 28. The front end of each first drive rod 36 is provided with a rack 37 that meshes with the outer teeth of the one-way gear 34. This ensures that the corresponding sliding plate 28 does not drive the transmission belt 35 during backward movement, but does drive the transmission belt 35 during forward movement, thereby driving the first pulley 32 and the second pulley 33 to rotate. In other words, during backward movement and while meshing with the one-way gear 34, the rack 37 does not drive the mounting shaft 47 of the one-way gear 34 to rotate. Because the mounting shaft 47 of the one-way gear 34 is coaxially mounted with the second pulley 33, it does not drive the second pulley 33 to rotate. However, during forward movement, the rack 37 can drive the mounting shaft 47 of the one-way gear 34 to rotate, thereby driving the second pulley 33 to rotate. It is important to note that the winding action of the second reel 6 or the second rotating base 12 determines its direction of rotation, and the rotational distance is the length of a single filtration section. Therefore, the transmission direction and transmission ratio can be adjusted by the gear assembly, for example, the gear assembly with a larger stroke can be used.

[0116] In the embodiment of the present invention, the one-way transmission characteristic of the one-way gear 34 is utilized, and the meshing of the one-way gear 34 with the rack 37 converts the bidirectional movement of the rack 37 into a single-directional rotational motion. While ensuring one-way transmission, the reliability of the mechanical transmission is ensured, and the failure rate is reduced.

[0117] In some embodiments of the present invention, Figure 3 As shown, an L-shaped limiting structure 60 is provided on the inner wall of the air inlet channel 2. It is used to prevent the rack 37 from moving laterally away from the one-way gear 34 during the meshing process between the rack 37 and the outer teeth of the one-way gear 34, and the limiting structure 60 of the rack 37 ensures the reliability of the meshing between the two.

[0118] In some embodiments of the present invention, Figure 10 As shown, the one-way gear 34 includes an outer ring gear 46 , a mounting shaft 47 , two pawls 48 and two first springs 49 .

[0119] An outer ring gear 46 is coaxially connected to the outside of the mounting shaft 47. Its outer edge features a tooth structure that meshes with the rack 37. Its inner edge is equipped with multiple ratchet structures. Specifically, the meshing of the rack 37 with the tooth structure drives the outer ring gear 46 to rotate relative to the mounting shaft 47. The rotational connection between the outer ring gear 46 and the mounting shaft 47 can be achieved through a bearing or by being sleeved around the outer edge of the mounting shaft 47, also enabling relative rotation. The ratchet structure is a continuous tooth structure, with each tooth having a smooth transition bevel 50 and a first stop surface 51.

[0120] The two pawls 48 are respectively rotationally connected to the outer edge of the mounting shaft 47, and the end of the pawl 48 is connected with the outer edge of the mounting shaft 47 through the first spring 49. The end of the pawl 48 is in abutment with the ratchet, and the ratchet-pawl 48 constitutes a one-way transmission structure. The mounting shaft 47 is coaxially installed with the rotating shaft of the second pulley 33 on the corresponding side. Specifically, the end of the pawl 48 has a second stop surface 52 matched with the stop surface, and a curved surface matched with the transition inclined surface 50. The curved surface of the pawl 48 towards the inside of the mounting shaft 47 is provided between the outer edge of the mounting shaft 47 and the first spring 49. Thus, when the transition inclined surface 50 of the ratchet is in abutment with the curved surface of the pawl 48 in the rotating direction of the outer ring gear 46, the outer ring gear 46 cannot drive the mounting shaft 47 to rotate. Conversely, when the first stop surface 51 on the ratchet is matched with the second stop surface 52 on the pawl 48 in the rotating direction of the outer ring gear 46, the rotation of the outer ring gear 46 can drive the mounting shaft 47 to rotate synchronously, realizing one-way transmission. The embodiment realizes the effect of one-way transmission by using a simple pawl 48-ratchet transmission, and has a simple structure and reliable one-way transmission.

[0121] In some alternative embodiments of the present application, as shown in Figure 11 The transmission assembly further comprises two rotating discs 53 and two second driving rods 54.

[0122] The axis of each rotating disc 53 extends in the horizontal direction, and each rotating disc 53 is rotationally arranged; each rotating disc 53 is in transmission connection with the second rotating seat 12 through a transmission mechanism; one side of each rotating disc 53 is provided with a plurality of first grooves 55, a plurality of switching grooves 56 and a plurality of second grooves 57; each first groove 55 is perpendicular to the radial direction of the rotating disc 53, and the plurality of first grooves 55 are sequentially connected through the switching grooves 56 at the head and tail; each second groove 57 extends along the radial direction of the rotating disc 53 and is connected to one switching groove 56; a guide plate 58 is arranged in each switching groove 56, the guide plate 58 is hinged to one corresponding side wall of the second groove 57, and a torsional spring is arranged at the hinged position, and the free end of the guide plate 58 is in abutment with the bottom wall of the first groove 57. Specifically, taking three groove structures as an example for description, the three first grooves 55 are three sides of an equilateral triangle, and the second groove 57 is a line connecting the center and the end point of the equilateral triangle. The switching groove 56 is a groove structure at the three end points of the equilateral triangle, and the guide plate 58 can guide the shaft body entering the switching groove 56 from the first groove 55 to move reversely into the second groove 57 during the movement, drive the rotating disc 53 to rotate by a corresponding angle, and then realize one-way transmission drive of the second reel 6 and the second rotating seat 12 through the rotation of the rotating disc 53 and the amplification structure formed by the gear assembly.

[0123] The rear end of each second drive rod 54 is connected to a sliding plate 28; the front end of each second drive rod 54 is provided with a second protrusion 59 that is inserted into the switching groove 56. The guide plate 58 is configured so that when the second protrusion 59 moves backward along the first groove 55, the second drive rod 54 is deformed and enters the switching groove 56. Then, when the second drive rod 54 moves forward, the second protrusion 59 is guided into the second groove 57, driving the rotating disk 53 to rotate. As a result, the corresponding sliding plate 28 does not rotate the second reel 6 during backward movement, but does rotate the second reel 6 during forward movement.

[0124] Specifically, as the second drive rod 54 moves backward along with the sliding plate 28, the second protrusion 59 on the drive rod moves backward within the first groove 55. As the second drive rod 54 moves through the first groove 55 to the switching groove 56, the second protrusion 59 lifts the guide plate 58 hinged to the side wall of the second groove 57, overcoming the force of the torsion spring and entering the switching groove 56. The guide plate 58 then returns to its initial position, where its end abuts the bottom wall of the first groove 55, under the action of the torsion spring. The second drive rod 54 then moves forward along with the sliding plate 28. At this point, the second protrusion 59 contacts the guide plate 58. Since the guide plate 58 cannot rotate in the opposite direction, the second protrusion 59 can only enter the second groove 57 in the direction of the guide plate 58, thereby driving the rotating disk 53 to rotate. After the second groove 55 rotates to a position perpendicular to the movement direction of the second drive rod 54 as the rotating disk rotates, the second protrusion 59 moves along the entrance direction of the second groove 57 to the switching groove 56 at the end. At this time, the next first groove 57 along the rotation direction of the rotating disk 53 moves to a horizontal position, waiting for the second protrusion 59 to move in the next movement stroke, and repeats the cycle to achieve the purpose of one-way transmission. As a result, the corresponding sliding plate 28 does not drive the second reel 6 to rotate during the backward movement, but drives the second reel 6 to rotate during the forward movement, achieving one-way transmission. This embodiment cleverly utilizes the switching between grooves of different angles to convert the movement between the grooves into the rotation of the turntable with the groove structure, using a mechanical mechanism to achieve one-way transmission, further improving the stability of the system.

[0125] In some embodiments of the present invention, first gears are provided at both ends of the second steering shaft 10; a second gear is coaxially provided on each second pulley 33, meshing with the first gear. Specifically, the rotation of the second pulley 33 drives the second rotating shaft to rotate, making the switching of the filtration sections smoother and improving the stability of the drive.

[0126] In some embodiments of the present invention, the air treatment device for a confined space further includes a drive motor disposed on the air inlet housing 1 ; an output shaft of the drive motor is connected to the second reel 6 to drive the second reel 6 to rotate, thereby improving drive stability.

[0127] In some embodiments of the present invention, Figure 7 As shown, at the position of the filter section in the air inlet channel 2, there is inevitably a gap between the filter section and the side wall of the air inlet channel 2. A wind shield frame 61 can be provided at the gap to facilitate the wind energy of the air inlet channel 2 to enter the filter section smoothly.

[0128] The air treatment device for a closed space of the present invention further includes an air conditioning assembly 200 connected to the filter assembly 100. Figure 13 As shown. Specifically, the filter assembly 100 and air conditioning assembly 200 in the air handling device in the enclosed space 400 are key subsystems for ensuring the safety of the internal environment of the enclosed space 400 and the stable operation of the equipment. They are generally used to purify and regulate the environment within the enclosed space 400 to provide a safe and comfortable operating environment. The filter assembly 100 and the air conditioning assembly 200 are connected, and the air filtered by the filter assembly 100 enters the air conditioning assembly 200 for air temperature and humidity regulation. In addition to the filter assembly 100 and the air conditioning assembly 200 connected thereto, the air handling device in the enclosed space 400 also includes an air conditioning system within the enclosed space 400. When it is detected that the outside air needs to be purified, that is, when it is detected that the outside air radiation or particulate matter exceeds the standard, and at the same time, the air conditioning system within the enclosed space 400 can meet the temperature and humidity regulation requirements of the internal air, the "fresh air mode" is activated. At this time, the filter assembly 100 is turned on, the air conditioning assembly 200 is turned off, and the air system within the enclosed space is in operation. After the outside air enters the filter assembly 100, it is filtered and then directly passes through the air conditioning assembly 200, and then enters the enclosed space 400 through the air supply port, and the temperature and humidity of the internal air are adjusted by the air conditioning system in the enclosed space 400. If it is detected that the outside air needs to be purified, that is, it is detected that the radiation and particulate matter in the outside air exceed the standard, and at the same time, the air conditioning system in the enclosed space 400 cannot meet the temperature and humidity adjustment requirements of the internal air, then the "mixed air mode" is turned on. At this time, the filter assembly 100 is turned on, the air conditioning assembly 200 is turned on, and the air system in the enclosed space is working. After the outside air enters the filter assembly 100, it is filtered and then enters the air conditioning assembly 200 for temperature and humidity adjustment, and then enters the enclosed space 400 through the air supply port, and at the same time cooperates with the air conditioning system in the enclosed space 400 to adjust the temperature and humidity of the internal air. At the same time, a return air assembly 300 is also provided within the enclosed space 400, connected to the air inlet of the air conditioning unit 200. This re-introduces the air within the enclosed space 400 back into the inlet of the air conditioning unit 200, where it, along with the air from the air outlet of the filter assembly 100, enters the air conditioning unit 200 for temperature and humidity processing. This is the mixed air mode. Users can select different modes based on different circumstances.

[0129] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. An air treatment device for a confined space, comprising a filter assembly and an air conditioner assembly, characterized in that: The filter assembly comprises: An air inlet housing is provided with an air inlet passage extending in a front-to-rear direction; an air inlet is provided at the front end of the air inlet passage; A filter device, the filter device having a first reel, a second reel and a flexible filter screen; the flexible filter screen is wound on the first reel, and one end of the flexible filter screen is fixedly set on the second reel; the first reel and the second reel are rotatably set on the air inlet shell; the flexible filter screen has a plurality of filter sections arranged in sequence along its length direction, one of the filter sections is located in the air inlet channel.

2. The air treatment device for a confined space according to claim 1, characterized in that: A coarse filter device is provided at the air inlet, and the coarse filter device is detachably provided; The first scroll is arranged horizontally and is arranged on the upper side of the air inlet; The second scroll is arranged horizontally and is arranged at the lower side of the air inlet; A first steering shaft and a second steering shaft are provided in the air inlet housing, wherein the first steering shaft is rotatably provided at the upper end of the filter section, and the second steering shaft is rotatably provided at the lower end of the filter section; The flexible filter screen passes around the first steering shaft and the second steering shaft.

3. The air treatment device for a confined space according to claim 2, characterized in that: Two first rotating seats and two second rotating seats are rotatably provided on the air inlet housing, and the two ends of the first reel are respectively mounted on the two first rotating seats; the two ends of the second reel are respectively mounted on the two second rotating seats; Both ends of the first reel and both ends of the second reel are respectively provided with driving posts; Connecting columns and docking columns are provided at corresponding positions of the first rotating seat and the second rotating seat; The connecting column has a first mounting groove, and the docking column has a second mounting groove. The second mounting groove and the first mounting groove are arranged opposite to each other to form a driving hole, and the driving column is inserted into the corresponding driving hole. The docking post is movably arranged relative to the connecting post, so that after the driving post is inserted into the first mounting slot from the side of the first mounting slot facing the second mounting slot, the docking post moves to block the first mounting slot; A return spring is provided between the connecting column and the corresponding first rotating seat or second rotating seat.

4. The air treatment device for a confined space according to claim 3, characterized in that: A clamping slot is provided in each of the first installation slot and the second installation slot, and a clamping block that cooperates with the clamping slot is provided on the driving column.

5. The air treatment device for a confined space according to claim 4, characterized in that: The first reel is provided with a first connecting structure, and the second reel is provided with a second connecting structure; One end of the flexible filter is provided with the second connection structure, the other end of the flexible filter is provided with the first connection structure, and the second connection structure is configured to be connected to the first connection structure; The first reel and the second reel have the same structure, and one end of the first reel and the other end of the second reel are correspondingly arranged to be connected to the two ends of the flexible filter screen respectively.

6. The air treatment device for a confined space according to claim 5, characterized in that: The first connection structure and the second connection structure both include: A plurality of clamping posts, each of which is provided with a clamping hole; A plurality of buckles, wherein the buckles and the clamping posts are alternately arranged in sequence; The buckle of the first connecting structure is configured to be inserted into the connecting hole of the second connecting structure; The buckle of the second connecting structure is configured to be inserted into the connecting hole of the first connecting structure.

7. The air treatment device for a confined space according to claim 6, characterized in that: Also includes: Two transmission channels are located on either side of the filter section; each transmission channel extends in the front-to-back direction; the outlet of each transmission channel is provided on the peripheral wall of the air inlet channel and is located on the air outlet side of the filter section; the inlet of each transmission channel is connected to the outside; A transmission assembly is provided on the air inlet housing, and the transmission assembly includes: two sliding plates, each of which is slidably disposed in one of the transmission channels along a front-to-rear direction and blocks the corresponding transmission channel; The two first elastic devices are respectively connected to the two sliding plates, storing force when the sliding plates move backward; and causing the sliding plates to move forward when the wind pressure on the air outlet side of the filter section increases; Furthermore, the sliding plate drives the second reel or the second rotating seat to rotate when moving forward.

8. The air treatment device for a confined space according to claim 7, characterized in that: Also includes: a fan configured to force airflow from front to rear in the air inlet passage; The position detection device is configured to detect the position of the sliding plate, and after the sliding plate moves to a corresponding position, control the fan to stop so that the sliding plate moves forward.

9. The air treatment device for a confined space according to claim 8, characterized in that: The transmission assembly further comprises: Two first pulleys are respectively fixedly mounted on the two second rotating seats; or are rotatably mounted on the air inlet housing, driving the second rotating seats to rotate via a gear assembly; Two second pulleys are rotatably mounted on the air inlet housing; a one-way gear is coaxially mounted on the outer side of each second pulley; Two transmission belts extending in a horizontal direction, each of the transmission belts being mounted on a corresponding first pulley and a second pulley; Two first drive rods, the rear end of each first drive rod is connected to one of the sliding plates; the front end of each first drive rod is provided with a rack meshing with the outer teeth of the one-way gear, so that the corresponding sliding plate does not drive the transmission belt to move during the backward movement, but drives the transmission belt to move during the forward movement, thereby driving the first pulley and the second pulley to rotate.

10. The air treatment device for a confined space according to claim 1, wherein: Also includes: The drive motor is arranged on the air inlet housing; the output shaft of the drive motor is connected to the second reel to drive the second reel to rotate.

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