Air-washing type air-washing room

Abstract

The utility model provides a kind of air-washing room with back air inlet belt ash removal function, including outer cover, the outer cover is set to enter and exit door indicating module and emergency stop button;Sliding door is set to the both sides of air-washing room, double-layer window is set on the sliding door, and handle is pushed and pulled;Door closer is set to the top side of sliding door;Back air mechanism is set to the other two sides of air-washing room, and it is communicated with air-washing room inside by back air panel on back air mechanism;Back air dust removal mechanism is set on back air panel, including ash removal gear, the ash removal gear is rotatably and slidably connected on back air dust removal mechanism, it is set relative to back air hole on back air panel, and the top of the ash removal gear tooth at least part of gear teeth can be inserted into back air hole in rotation process, to disturb dust on back air hole for use.The utility model is by mechanical disturbance and airflow synergistic effect, realize effective ash removal, prevent blockage, improve purification efficiency and reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of air shower technology, and in particular to an air shower with a dust removal function at the return air inlet. Background Technology

[0002] Air showers are widely used in industries with high requirements for environmental cleanliness, such as semiconductors, electronics manufacturing, biomedicine, food processing, and hospital laboratories. They are mainly used for dust removal and purification of personnel or materials before they enter the cleanroom. When personnel or items enter the air shower, the internal fan draws in outside air, filters it into clean air through a high-efficiency filter, and then blows it onto the surface of the human body or object at high speed through multiple nozzles, blowing off the attached dust, particles and other pollutants. The air is then discharged through the return air duct or filtered again.

[0003] However, during long-term use, the return air vents of the air shower can gradually accumulate dust and even become clogged due to the continuous collection of pollutants such as dust, particles, and fibers blown down by the high-speed airflow. This problem leads to a reduction in return air volume, disrupts the indoor airflow balance, lowers the airflow velocity and purification efficiency, and significantly reduces the dust removal effect. If the accumulated dust is not cleaned in time, it may breed bacteria, causing secondary pollution and affecting the hygiene and safety of the cleanroom.

[0004] Therefore, the aforementioned technical issues need to be resolved. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an air shower with a dust removal function at the return air inlet, so as to solve the problem that the return air inlet of the air shower is prone to blockage during long-term use.

[0006] To achieve the above and other related objectives, this utility model provides the following technical solution: an air shower with a dust removal function at the return air inlet, comprising an outer casing, on which an entrance / exit indicator module and an emergency stop button are provided; sliding doors are provided on both sides of the air shower, each with a double-layered viewing window and a handle for pushing and pulling; a door closer is provided on the top side of the sliding door; a return air mechanism is provided on the other two sides of the air shower and communicates with the interior of the air shower through a return air panel on the return air mechanism; and a return air dust removal mechanism is provided on the return air panel, including a dust removal gear, which is rotatably and slidably connected to the return air dust removal mechanism, positioned relative to the return air hole on the return air panel, and at least a portion of the teeth of the dust removal gear can extend into the return air hole during rotation to disturb the dust accumulated on the return air hole.

[0007] To achieve the above technical solution, this air shower with a dust removal function at the return air inlet utilizes a return air dust removal mechanism on the return air panel. This mechanism employs a rotatable and sliding dust removal gear, whose tooth tip extends into the return air vent during rotation, disturbing and removing accumulated dust and particles around the vent, thus preventing long-term dust buildup and blockage. This design improves the unobstructed flow of the return air duct, ensuring the stability and efficiency of airflow circulation within the air shower. It not only enhances dust removal and purification efficiency but also reduces maintenance frequency and the risk of secondary pollution, thereby improving the overall reliability of the air shower and the safety of the clean environment.

[0008] In one embodiment of the present invention, the return air cleaning mechanism includes a first slide rail and a second slide rail, which are respectively disposed on both sides of the return air panel, and the return air holes are all located between the first slide rail and the second slide rail.

[0009] To achieve the above technical solution, a first slide rail and a second slide rail are set on both sides of the return air panel, and the return air holes are arranged between the two slide rails. This provides a stable sliding guide and installation base for the dust removal gear, enabling it to reciprocate along the return air hole area under the guidance of the rails. This ensures that the dust removal gear accurately aligns with each return air hole while rotating, achieving comprehensive and continuous dust removal coverage, preventing local dust accumulation and blockage, and improving the operational stability and reliability of the dust removal mechanism.

[0010] In one embodiment of the present invention, a first slider and a second slider are slidably connected to the first slide rail and the second slide rail, respectively; an "L"-shaped support plate is provided on the second slider, a first connecting shaft passes through the side of the support plate, and a positioning gear is connected to the end of the first connecting shaft away from the second slider, the positioning gear meshing with a rack provided on the return air panel.

[0011] To achieve the above technical solution, a first slider and a second slider are respectively set on the first slide rail and the second slide rail, and an "L"-shaped support plate with a first connecting shaft is connected to the second slider. The positioning gear at the end of the first connecting shaft meshes with the rack on the return air panel, thereby forming a stable transmission and guiding mechanism. When the cleaning gear moves with the slider, the positioning gear rolls along the rack, driving the entire cleaning assembly to slide smoothly back and forth under the guidance of the first and second slide rails. This ensures that the cleaning gear can clean each return air hole one by one or synchronously in an orderly and continuous manner, improving the cleaning range and the reliability of the action, and preventing cleaning omissions due to displacement deviation.

[0012] In one embodiment of the present invention, the other end of the first connecting shaft is sleeved on the second connecting shaft, the other end of the second connecting shaft is mounted on the first slider, and multiple sets of cleaning gears are threaded through the second connecting shaft.

[0013] To achieve the above technical solution, the other end of the first connecting shaft is sleeved on the second connecting shaft, and the second connecting shaft is installed on the first slider with multiple sets of cleaning gears passing through it, thus realizing the linkage integration of the cleaning gears and the sliding mechanism. This structure ensures the overall smooth movement of the cleaning assembly while enabling multiple sets of cleaning gears to move synchronously with the slider along the slide rail and cover multiple return air hole areas. Combined with the meshing transmission of the positioning gear and rack, it not only ensures the linear accuracy and stability of the cleaning action, but also improves the cleaning efficiency and coverage, avoids local blockage of the return air holes, and enhances the reliability and maintenance convenience of the cleaning system.

[0014] In one embodiment of this utility model, the tooth pitch on the rack is correspondingly set to the hole pitch between the return air holes.

[0015] To achieve the above technical solution, the tooth pitch on the rack is set to correspond with the hole spacing between the return air holes. This ensures that the positioning gear moves precisely to the position of a return air hole with each tooth pitch on the rack, thereby ensuring that the cleaning gear can accurately align with each return air hole during reciprocating motion, achieving precise cleaning of each hole at a fixed point. This design avoids misalignment or omission during the cleaning process, improves the repeatability and reliability of the cleaning action, and ensures the long-term unobstructed operation of the return air duct and the overall purification efficiency of the air shower system.

[0016] In one embodiment of this utility model, the dust removal gears are arranged sequentially according to the arrangement direction of the return air holes.

[0017] To achieve the above technical solution, the dust removal gears are arranged sequentially along the direction of the return air holes, ensuring that each dust removal gear corresponds to or synchronously covers the return air hole in position. Combined with the precise transmission of the rack and pinion and the positioning gear, each dust removal gear can accurately align with the corresponding return air hole during sliding. When rotating, its tooth tip extends into the hole to disturb the accumulated dust, achieving a comprehensive, orderly, and thorough dust removal effect. This layout optimizes the dust removal path and improves the coordination and efficiency of the dust removal action.

[0018] In one embodiment of the present invention, the tooth thickness of the cleaning gear is smaller than the diameter of the return air hole, and the cross-sectional area of ​​the tooth tip of the gear is smaller than the cross-sectional area of ​​the return air hole.

[0019] To achieve the above technical solution, the tooth thickness of the cleaning gear is designed to be smaller than the diameter of the return air hole, and the cross-sectional area of ​​its tooth tip is smaller than the cross-sectional area of ​​the return air hole. This ensures that the cleaning gear can smoothly enter the hole without jamming when it rotates and extends into the return air hole. At the same time, during the rotation, the gear teeth disturb the dust attached to the hole wall and surrounding area, breaking the surface tension of the dust. This dimensional fit not only ensures the smoothness and reliability of the cleaning action, but also avoids equipment wear or malfunction due to structural interference, thus improving the safety and durability of the cleaning process.

[0020] In one embodiment of this utility model, the pitch length of the cleaning gear corresponds to the distance between the centers of adjacent return air holes.

[0021] To achieve the above technical solution, the pitch length of the cleaning gear corresponds to the center-to-center distance between adjacent return air holes. This ensures that the movement rhythm of the cleaning gear teeth matches the pitch of the return air holes as the cleaning gear moves and rotates with the sliding mechanism. This guarantees that each tooth can accurately align and extend into the corresponding return air hole area during travel, achieving continuous, synchronous, and offset cleaning action. This design improves the coordination and positioning accuracy of the cleaning process, avoids cleaning omissions or repeated disturbances due to pitch mismatch, and enhances the stability and overall cleaning effect of the cleaning system.

[0022] As described above, the air shower with a dust removal function at the return air inlet of this utility model has the following beneficial effects: This air shower with a dust removal function at the return air inlet features a return air dust removal mechanism on the return air panel, employing a rotatable and slidable dust removal gear. The gear tip extends into the return air hole during rotation, disturbing and removing accumulated dust and particles around the hole, thus preventing long-term dust accumulation and blockage. This design improves the unobstructed flow of the return air channel, ensuring the stability and efficiency of airflow circulation within the air shower. It not only enhances dust removal and purification efficiency but also reduces maintenance frequency and the risk of secondary pollution, improving the overall reliability of the air shower operation and the safety of the clean environment. Attached Figure Description

[0023] Figure 1 The diagram shown is an external structural schematic of an air shower with a dust removal function at the return air inlet, as disclosed in an embodiment of this utility model.

[0024] Figure 2 The diagram shown is a schematic internal cross-sectional view of an air shower with a dust removal function at the return air inlet, as disclosed in an embodiment of this utility model.

[0025] Figure 3 The image shown is a detailed drawing of the cleaning mechanism of an air shower with a dust removal function at the return air vent, as disclosed in an embodiment of this utility model.

[0026] Component labeling: 1. Outer casing; 101. Door / entry indicator; 102. Emergency stop button; 2. Sliding door; 201. Double-layer viewing window; 202. Handle; 3. Door closer; 4. Return air cleaning mechanism; 400. Return air vent; 401. First slide rail; 402. Second slide rail; 403. First slider; 404. Second slider; 405. First connecting shaft; 406. Positioning gear; 407. Rack; 408. Second connecting shaft; 409. Cleaning gear; 5. Air shower mechanism; 501. Stainless steel spray ball; 6. LED light; 7. Differential pressure gauge; 8. Control panel. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] Please see Figure 1-2 This utility model provides an air shower with a return air vent and a dust removal function, including an outer casing 1, on which an entrance / exit indicator 101 module and an emergency stop button 102 are installed; sliding doors 2 are located on both sides of the air shower, each with a double-layer viewing window 201 and a handle 202 for pushing and pulling; a door closer 3 is located on the top side of the sliding door 2; a return air mechanism is located on the other two sides of the air shower and is connected to the interior of the air shower through a return air panel on the return air mechanism; and a return air dust removal mechanism 4 is located on the return air panel and includes a dust removal gear 409 for dust removal. Gear 409 is rotatably and slidably connected to the return air cleaning mechanism 4, and is positioned relative to the return air hole 400 on the return air panel. At least a portion of the teeth of the cleaning gear 409 can extend into the return air hole 400 during rotation to agitate the dust accumulated on the return air hole 400. Air shower mechanism 5 is located on the upper part of the return air mechanism and includes multiple sets of stainless steel spray balls 501, which are neatly arranged inside the air shower chamber. LED light 6 is installed at the top of the air shower chamber, and differential pressure gauge 7 and control panel 8 are installed at the upper end of the air shower mechanism 5.

[0029] This air shower with a dust removal function at the return air inlet utilizes a return air dust removal mechanism 4 on the return air panel, employing a rotatable and sliding dust removal gear 409. The gear tip extends into the return air inlet 400 during rotation, disturbing and removing accumulated dust and particles around the inlet, thus preventing long-term dust buildup and blockage. This design improves the unobstructed flow of the return air duct, ensuring the stability and efficiency of airflow circulation within the air shower. It not only enhances dust removal and purification efficiency but also reduces maintenance frequency and the risk of secondary pollution, improving the overall reliability of the air shower and the safety of the clean environment.

[0030] Furthermore, the air shower unit 5 uses a dedicated high-volume fan with air supply from both sides.

[0031] Furthermore, at least 12 stainless steel spray balls 501 are arranged on both sides inside the air shower mechanism 5. In this embodiment, 18 are arranged, and the nozzle wind speed can reach 25m / s±10%.

[0032] Furthermore, the air shower unit 5 is equipped with a primary and high-efficiency dual-stage filtration system with a filtration efficiency of 99.99%.

[0033] Furthermore, the air shower mechanism 5 is equipped with an infrared sensor for air showering, and the air showering time is adjustable from 1 to 99 seconds.

[0034] For further information, please refer to [link / reference]. Figure 3 The return air cleaning mechanism 4 includes a first slide rail 401 and a second slide rail 402, which are respectively disposed on both sides of the return air panel, and the return air holes 400 are all located between the first slide rail 401 and the second slide rail 402.

[0035] By setting a first slide rail 401 and a second slide rail 402 on both sides of the return air panel, and arranging the return air hole 400 between the two slide rails, a stable sliding guide and installation base are provided for the dust removal gear 409, enabling it to reciprocate along the area of ​​the return air hole 400 under the guidance of the rails. This ensures that the dust removal gear 409 accurately aligns with each return air hole 400 while rotating, achieving comprehensive and continuous dust removal coverage, preventing local dust accumulation and blockage, and improving the operational stability and reliability of the dust removal mechanism.

[0036] Furthermore, a first slider 403 and a second slider 404 are slidably connected to the first slide rail 401 and the second slide rail 402, respectively; an "L"-shaped support plate is provided on the second slider 404, and a first connecting shaft 405 passes through the side of the support plate. A positioning gear 406 is connected to the end of the first connecting shaft 405 away from the second slider 404, and the positioning gear 406 meshes with a rack 407 provided on the return air panel.

[0037] By setting a first slider 403 and a second slider 404 on the first slide rail 401 and the second slide rail 402 respectively, and connecting an "L"-shaped support plate with a first connecting shaft 405 on the second slider 404, the positioning gear 406 at the end of the first connecting shaft 405 meshes with the rack 407 on the return air panel, thereby forming a stable transmission guide mechanism. When the cleaning gear 409 moves with the slider, the positioning gear 406 rolls along the rack 407, driving the entire cleaning assembly to slide smoothly back and forth under the guidance of the first and second slide rails 402, ensuring that the cleaning gear 409 can orderly and continuously disturb and clean each return air hole 400 one by one or synchronously, improving the cleaning range and the reliability of the action, and preventing cleaning omissions due to displacement deviation.

[0038] Furthermore, the other end of the first connecting shaft 405 is sleeved on the second connecting shaft 408, the other end of the second connecting shaft 408 is mounted on the first slider 403, and multiple sets of cleaning gears 409 are threaded through the second connecting shaft 408.

[0039] By connecting the other end of the first connecting shaft 405 to the second connecting shaft 408, and installing the second connecting shaft 408 on the first slider 403 with multiple sets of cleaning gears 409 passing through it, the linkage integration of the cleaning gears 409 and the sliding mechanism is realized. This structure ensures the overall smooth movement of the cleaning assembly, while enabling multiple sets of cleaning gears 409 to move synchronously with the slider along the slide rail and cover multiple return air holes 400 areas. Combined with the meshing transmission of the positioning gear 406 and the rack 407, it not only ensures the linear accuracy and stability of the cleaning action, but also improves the cleaning efficiency and coverage, avoids local blockage of the return air holes 400, and enhances the reliability and maintenance convenience of the cleaning system.

[0040] Furthermore, the tooth pitch on the rack 407 is set to correspond with the hole spacing between the return air hole 400.

[0041] By setting the tooth pitch on the rack 407 to correspond with the hole spacing of the return air hole 400, the positioning gear 406 moves precisely to the position of a return air hole 400 for every tooth pitch moved on the rack 407. This ensures that the cleaning gear 409 can accurately align with each return air hole 400 during reciprocating motion, achieving precise cleaning of each hole at a fixed point. This design avoids misalignment or omission during the cleaning process, improves the repeatability and reliability of the cleaning action, and ensures the smooth operation of the return air duct and the overall purification efficiency of the air shower system.

[0042] Furthermore, the dust removal gears 409 are arranged sequentially according to the arrangement direction of the return air holes 400.

[0043] By sequentially arranging the cleaning gears 409 along the arrangement direction of the return air holes 400, it is ensured that each cleaning gear 409 corresponds to or synchronously covers the return air hole 400 in position. Combined with the precise transmission of the rack 407 and the positioning gear 406, each cleaning gear 409 can accurately align with the corresponding return air hole 400 during sliding. When rotating, its tooth tip extends into the hole to disturb the accumulated dust, achieving a comprehensive, orderly, and thorough cleaning effect. This layout optimizes the cleaning path and improves the coordination and efficiency of the cleaning action.

[0044] Furthermore, the tooth thickness of the cleaning gear 409 is smaller than the diameter of the return air hole 400, and the cross-sectional area of ​​the tooth tip of the gear is smaller than the cross-sectional area of ​​the return air hole 400.

[0045] By designing the tooth thickness of the cleaning gear 409 to be smaller than the diameter of the return air hole 400, and the cross-sectional area of ​​its tooth tip to be smaller than the cross-sectional area of ​​the return air hole 400, it is ensured that the cleaning gear 409 can smoothly enter the hole without jamming when rotating and extending into the return air hole 400. At the same time, during the rotation, the gear teeth will disturb the dust attached to the hole wall and surrounding area, breaking the surface tension of the dust. This dimensional fit not only ensures the smoothness and reliability of the cleaning action, but also avoids equipment wear or malfunction due to structural interference, thus improving the safety and durability of the cleaning process.

[0046] Furthermore, the pitch length of the cleaning gear 409 corresponds to the spacing between the centers of the adjacent return air holes 400.

[0047] By aligning the circumferential pitch length of the cleaning gear 409 with the center-to-center distance of the adjacent return air holes 400, the movement rhythm of the teeth of the cleaning gear 409 matches the arrangement pitch of the return air holes 400 as it moves and rotates with the sliding mechanism. This ensures that each tooth can accurately align and extend into the corresponding return air hole 400 area during its movement, achieving continuous, synchronous, and offset-free cleaning action. This design improves the coordination and positioning accuracy of the cleaning process, avoids cleaning omissions or repeated disturbances due to pitch mismatch, and enhances the stability and overall cleaning effect of the cleaning system.

[0048] Furthermore, in this embodiment, while conforming to the dimensions of the return air hole 400, a flexible sleeve is fitted onto the teeth of the dust removal gear 409 to reduce scratches.

[0049] Furthermore, the workflow of an air shower with a return air vent and a dust removal function includes:

[0050] After the air shower has been running for a period of time, the system starts the dust removal program or triggers the dust removal action based on the monitoring signal of the differential pressure sensor. At this time, the drive device (such as a motor) drives the first slider 403 and the second slider 404 to slide synchronously along the first slide rail 401 and the second slide rail 402, thereby pulling the entire dust removal assembly to make reciprocating linear motion on the return air panel.

[0051] During the sliding process, the positioning gear 406 on the second slider 404 rolls along the rack 407 that matches the hole spacing of the return air hole 400, ensuring accurate movement step distance. Each step distance corresponds to the position of a return air hole 400.

[0052] At the same time, the cleaning gear 409 is driven to rotate through the transmission structure (such as the second connecting shaft 408). Its pitch length is equal to the center distance of the return air hole 400, and the cross-sectional area of ​​the tooth tip is smaller than that of the return air hole 400, ensuring that the gear teeth can smoothly extend into the hole.

[0053] During rotation, the teeth of the dust removal gear 409 enter the return air hole 400 area, scraping and disturbing the dust accumulated on the hole wall and surrounding area, breaking the adhesion between dust and metal surface and the surface tension between dust particles, causing the accumulated particles, fibers and other pollutants to fall off and be in a suspended state.

[0054] At this time, under the continuous action of the negative pressure return airflow inside the air shower, these loosened dust particles are re-inhaled into the return air duct and enter the filtration system for purification, realizing the active removal and circulation purification of accumulated dust.

[0055] This invention features a continuous, precise, and non-disassembly-required dust removal process, effectively preventing blockage of the return air vent, ensuring airflow balance and purification efficiency, and improving the stability of the air shower operation and the safety of the clean environment.

[0056] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An air shower with a dust removal function at the return air vent, characterized in that, The system includes an outer casing with an entrance / exit indicator module and an emergency stop button; sliding doors on both sides of the air shower with double-layered windows and handles for pushing and pulling; a door closer on the top side of the sliding doors; a return air mechanism on the other two sides of the air shower, connected to the interior of the air shower via a return air panel; and a return air cleaning mechanism on the return air panel, including cleaning gears rotatably and slidably connected to the return air cleaning mechanism, positioned relative to the return air holes on the return air panel, with at least a portion of the teeth of the cleaning gears able to extend into the return air holes during rotation to agitate the accumulated dust on the return air holes.

2. The air shower with a dust removal function at the return air vent according to claim 1, characterized in that, The return air cleaning mechanism includes a first slide rail and a second slide rail, which are respectively disposed on both sides of the return air panel, and the return air holes are all located between the first slide rail and the second slide rail.

3. The air shower with a dust removal function at the return air inlet according to claim 2, characterized in that, A first slider and a second slider are slidably connected to the first slide rail and the second slide rail, respectively; an "L"-shaped support plate is provided on the second slider, and a first connecting shaft passes through the side of the support plate. A positioning gear is connected to the end of the first connecting shaft away from the second slider, and the positioning gear meshes with a rack provided on the return air panel.

4. The air shower with a dust removal function at the return air vent according to claim 3, characterized in that, The other end of the first connecting shaft is sleeved on the second connecting shaft, and the other end of the second connecting shaft is mounted on the first slider. Multiple sets of cleaning gears are threaded through the second connecting shaft.

5. The air shower with a dust removal function at the return air vent according to claim 3, characterized in that, The tooth pitch on the rack is set to correspond to the hole spacing between the return air holes.

6. The air shower with a dust removal function at the return air inlet according to claim 4, characterized in that, The dust removal gears are arranged sequentially according to the arrangement direction of the return air holes.

7. The air shower with a dust removal function at the return air inlet according to claim 6, characterized in that, The tooth thickness of the cleaning gear is smaller than the diameter of the return air hole, and the cross-sectional area of ​​the tooth tip of the gear is smaller than the cross-sectional area of ​​the return air hole.

8. The air shower with a dust removal function at the return air inlet according to claim 7, characterized in that, The pitch length of the cleaning gear corresponds to the distance between the centers of adjacent return air holes.

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