Modular air shower

Abstract

The present application relates to the technical field of air shower, in particular to a modular air shower, comprising: air shower cavity, front door, air nozzle, air return, partition and back door; the front end of the air shower cavity is provided with the front door, a plurality of air nozzles are installed on the inner wall of the air shower cavity, a plurality of air returns are installed on the inner wall of the air shower cavity, a plurality of partitions are installed in the air shower cavity, and the back door is installed in the air shower cavity; further comprising a moving mechanism, which is installed in the air shower cavity; the present application solves the problem that the existing air shower cannot control the working of the fan according to the number of workers entering, resulting in high energy consumption of the fan, and the small area of the air shower also causes queuing, wasting a lot of time; the air shower can control the movement of the back door according to the number of workers entering, thereby controlling the number of fan working, saving the energy consumption of the air shower, and without queuing, a lot of time is saved, and the working efficiency of the air shower is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of air shower technology, and specifically to a modular air shower. Background Technology

[0002] An air shower is a widely used device in cleanroom environments. Its main function is to remove dust particles carried by personnel or objects entering the clean area through highly efficient filtered clean airflow, so as to prevent the introduction of pollutants into the clean environment and thus ensure the cleanliness of the environment.

[0003] Existing air shower rooms generally consist of a sealed space with air nozzles installed on both sides and two doors. When a worker opens the front door and enters the air shower room, the worker then closes the front door and enters the range of the detector. After the detector detects the worker, it locks the front door and automatically starts the fan to carry out the air shower operation. After the air shower is completed, the lock on the rear door is automatically unlocked, and the worker opens the rear door, exits the air shower room, and closes the rear door.

[0004] However, in existing air showers, all the fans work at the same time. The larger the air shower area, the more workers can enter, but the higher the energy consumption of the fans. If the air shower area is too small, it will cause queuing. Large air showers require workers to spend time walking to the sensing area before the air shower can be turned on, which is not only troublesome but also time-consuming. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art. This invention solves the problem that existing air showers cannot control the operation of the fans according to the number of workers entering, resulting in high fan energy consumption. Furthermore, the small area of ​​the air shower can cause queuing, wasting a lot of time. This invention enables the movement of the back door of the air shower to control the number of fans operating according to the number of workers entering, thereby saving the energy consumption of the air shower. In addition, there is no need for queuing, saving a lot of time, and at the same time, greatly improving the efficiency of the air shower operation.

[0006] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0007] A modular air shower includes: an air shower chamber, a front door, air nozzles, return air vents, partitions, and a rear door. The front door is installed at the front end of the air shower chamber. Multiple air nozzles are installed on the inner wall of the air shower chamber, and multiple return air vents are installed on the inner wall of the air shower chamber, located below the air nozzles. Multiple partitions are installed inside the air shower chamber, separating the multiple air nozzles and return air vents into multiple air chambers. A rear door is installed inside the air shower chamber. The air shower chamber also includes a moving mechanism installed inside the air shower chamber and located at the bottom of the rear door. The moving mechanism moves by pressing down on a pedal, which moves downward and drives two first drive rods on both sides to rotate via a rack. The first drive rods drive a rotating shaft to rotate via a belt. The simultaneous rotation of the two rotating shafts causes the sliding nut seats on the rotating shafts to move, driving the rear door to move. Simultaneously, a compression spring at the bottom of the pedal is compressed, causing a first electromagnet and a second electromagnet to attract each other, and air is then ejected from the air nozzles.

[0008] These air nozzles are used to effectively remove dust particles attached to the surface of people or objects; multiple partitions separate multiple air nozzles and return air inlets into multiple independent air chambers, each of which can independently generate and circulate airflow, thereby further improving the air shower effect.

[0009] When the pedal is pressed, the pedal moves downward and drives the first drive rods on both sides to rotate through the rack and pinion structure. The first drive rods further drive the rotating shaft to rotate through the connected belt. At the same time, the rotating shafts on both sides rotate synchronously, causing the sliding nut seats fixed on the rotating shafts to move along the guide rail, thereby realizing the back door moving back and forth.

[0010] During this process, the compression spring at the bottom of the pedal is compressed. In addition, the moving mechanism is also designed with a first electromagnet and a second electromagnet. These two electromagnets attract each other and play an auxiliary role in fixing and locking.

[0011] This modular air shower can control the movement of the rear door based on the flow of people, thereby controlling the size of the air shower space. Furthermore, the foot-operated drive not only saves energy but also enhances the system's reliability and durability, making it suitable for high-frequency use scenarios. The overall structure improves the air shower's operational efficiency.

[0012] Preferably, the moving mechanism includes: a base, a pedal, a first drive rod, a second drive rod, a rotating shaft, a support column, a compression spring, a cylinder, and a rack; the base is installed at the bottom of the air shower chamber, and multiple pedals are linearly arrayed inside the base; two first drive rods are installed inside the base, located below both ends of the pedals; two second drive rods are installed inside the base, located outside the two first drive rods and on the same plane as the two first drive rods; two rotating shafts are installed inside the base, located diagonally above the outside of the two second drive rods; a support column is installed at the center of the bottom of the pedal; a compression spring is installed at the bottom of the pedal, located outside the support column; a cylinder is installed inside the base, and the support column slides inside the cylinder; racks are installed at both ends of the pedal, located between the first and second drive rods on both sides.

[0013] The base is the load-bearing structure of the entire moving mechanism, installed at the bottom of the air shower chamber, serving to fix and support it. The pedal, the operating component directly stepped on by the worker, is located on the surface of the base, and its bottom center is connected to the inside of the base via a support column. The compression spring is compressed when the worker steps on the pedal, providing a rebound force to reset the pedal. The support column is slidably mounted in a cylinder inside the base, guiding and stabilizing the movement of the support column to ensure smooth and reliable up-and-down movement of the pedal.

[0014] It should be noted that when the pedal moves downward, the first drive rod is driven to rotate by the inner side of the rack, and the power is transmitted to the rotating shaft, thereby driving the rear door to move. When the pedal moves upward, the second drive rod is driven to rotate, and the power is transmitted to the rotating shaft, thereby driving the rear door to reset. When the first drive rod rotates, the second drive rod will not rotate, and vice versa.

[0015] Preferably, the first drive rod is linearly arrayed with a plurality of first rotating teeth, and the second drive rod is linearly arrayed with a plurality of second rotating teeth, wherein the first rotating teeth and the second rotating teeth respectively mesh with the two sides of the rack.

[0016] Specifically, the first drive rod has multiple first rotating teeth arranged in a linear array along its length, with uniform spacing between them to ensure precise meshing between each gear and its adjacent rack. Similarly, the second drive rod also has multiple second rotating teeth arranged in a linear array along its length, corresponding to the positions of the first rotating teeth and meshing with both sides of the rack. This arrangement ensures that when the rack moves in one direction, only one of the racks can be driven to rotate.

[0017] Preferably, a first rotating wheel is provided on one end of the first drive rod, and a second rotating wheel is provided on one end of the second drive rod, and the first rotating wheel and the second rotating wheel are not located on the same side.

[0018] Specifically, a first rotating wheel is mounted on one end of the first drive rod, while a second rotating wheel is mounted on one end of the second drive rod. It is worth noting that these two rotating wheels are not located on the same side, but are positioned at different locations at both ends of the drive rods, thus achieving a more rational spatial layout and a more balanced transmission mechanism.

[0019] Preferably, the two rotating shafts are provided with threads, and the helix directions of the two threads are opposite. The rotating shafts are provided with sliding nut seats, and the sliding nut seats cooperate with the threads.

[0020] It should be noted that when the pedal moves downward, the first drive rod rotates, which in turn drives the two rotating shafts on both sides to rotate simultaneously. In order for the sliding nut seats on the rotating shafts to move in the same direction at the same time, the threads on the two rotating shafts on both sides must be designed in opposite directions. This ensures that when the two rotating shafts rotate at the same time, the sliding nut seats can move in the same direction at the same time, thus ensuring the movement of the rear door.

[0021] Preferably, a first ratchet is provided on one end of the rotating shaft, and a second ratchet is provided on the other end. The first ratchet and the second ratchet have opposite unidirectional driving directions. The first ratchet and the second ratchet are respectively connected to the first rotating wheel and the second rotating wheel via belts.

[0022] It is important to note that the first and second ratchet wheels at both ends of the shaft are connected to the first and second drive rods, respectively. Due to their different operating sequences, both the first and second drive rods need to drive the shaft to rotate. When the first drive rod rotates, the shaft rotates. To prevent the shaft from interfering with the second drive rod, the first and second ratchet wheels at both ends of the shaft need to work together. When the first drive rod drives the shaft to rotate, the second ratchet wheel prevents the shaft from driving the second drive rod to rotate. Conversely, when the second drive rod drives the shaft to rotate, the first ratchet wheel prevents the shaft from driving the first drive rod to rotate. This achieves a reasonable distribution of power and greatly improves the overall transmission efficiency.

[0023] Preferably, a first electromagnet is installed at the bottom of the support column, and a second electromagnet is installed at the bottom of the cylinder.

[0024] The first and second electromagnets, by changing their magnetic properties, can fix and lock the support column and the cylinder together. This prevents the subsequent pedal from moving downwards after the worker passes through the back door, thus preventing the back door from moving again. At the same time, it locks the already pressed pedal, preventing it from moving upwards after the worker leaves the pedal, which would cause the back door to move. Only after all the workers have left the air shower will the first and second electromagnets be de-energized, allowing the pedal and back door to return to their original positions.

[0025] Preferably, the rack includes a connecting block, a first tooth, a first spring, a second tooth, and a second spring. The top of the connecting block is connected to the bottom of the pedal. One end of the first spring is installed inside the connecting block. The first tooth is slidably installed inside the connecting block and connected to the first spring. One end of the second spring is installed outside the connecting block. The second tooth is slidably installed outside the connecting block and connected to the second spring. The tips of the first tooth and the second tooth are in opposite directions.

[0026] Since the downward and upward movement of the pedal drives different mechanical structures, in order to prevent interference between the various mechanical structures, the first and second teeth on the rack need to be set as telescopic teeth. When the rack moves downward, the first tooth will drive the first drive rod to rotate, and at the same time, the second tooth will be compressed into the connecting block. Conversely, when the rack moves upward, the second tooth will drive the second drive rod to rotate, and at the same time, the first tooth will be compressed into the connecting block. When the pedal moves downward or upward, the first and second teeth will be driven to return to their original positions by the first and second springs.

[0027] Preferably, the downward movement height of the pedal is equal to the backward movement distance of the rear door, and the backward movement distance of the rear door is equal to the width of the pedal.

[0028] Specifically, the downward movement of the step is equal to the backward movement of the rear door. This is to ensure that when the first worker enters, the rear door will move backward a certain distance to make room for the next step and move forward further. At the same time, it also leaves space behind for the second worker to enter.

[0029] Preferably, wires are provided on the top of the front door, and through-beam sensors are installed on both sides of the rear door. The wires are used to supply power to the rear door and the components installed on it, and the through-beam sensors are used to detect whether the front door is closed, thereby controlling the operation of the air nozzles of the corresponding modules inside the air shower, which greatly improves the efficiency of the air shower.

[0030] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0031] 1. This application provides a moving mechanism at the bottom of the air shower chamber. Through the interaction between the pedal on the moving mechanism and the rear door, the downward movement of the pedal drives the first drive rod to rotate and drives the rotating shaft to rotate, thereby causing the rear door on the rotating shaft to move. The air volume inside the air shower chamber is controlled according to the changes in the flow of people, which saves the energy consumption of the air shower chamber. It not only avoids energy waste but also allows people to pass through quickly, saving a lot of time. At the same time, it greatly improves the efficiency of the air shower chamber.

[0032] 2. This application provides a second tooth on the pedal rack, which cooperates with the compression spring at the bottom of the pedal to allow the rear door to return to its original position during the pedal reset process. Furthermore, the first and second electromagnets at the bottom of the pedal prevent the pedal from being compressed after the air shower, thus preventing the rear door from moving when workers leave the air shower, saving energy and improving the efficiency of the air shower operation.

[0033] 3. This application uses a through-beam sensor on the rear door to detect the on / off status of the front and rear doors, thereby controlling the activation of the air nozzles in the air shower. This allows the entire air shower to operate in a modular fashion according to the number of people, thus greatly saving the energy consumption of the fan and improving the efficiency of the air shower. Attached Figure Description

[0034] Figure 1 The figure shown is a three-dimensional structural diagram of the air shower chamber of the present invention.

[0035] Figure 2 The image shown is a front view of the front door of this invention.

[0036] Figure 3 The diagram shown is a three-dimensional structural schematic of the air shower chamber of this invention.

[0037] Figure 4 The figure shown is a three-dimensional structural diagram of the back door and the moving mechanism of the present invention.

[0038] Figure 5 The figure shown is a three-dimensional structural diagram of the baseless moving mechanism of the present invention.

[0039] Figure 6 The diagram shown is a three-dimensional structural schematic of the internal structure of the moving mechanism of the present invention.

[0040] Figure 7 The diagram shown is a three-dimensional structural schematic of the internal structure of the moving mechanism of the present invention from another perspective.

[0041] Figure 8 The diagram shows a three-dimensional structural schematic of the support column and the interior of the cylinder on the pedal of the present invention.

[0042] Figure 9 The diagram shown is a schematic representation of the internal structure of the rack of the present invention.

[0043] In the diagram: 1. Air shower chamber; 2. Front door; 21. Wire; 3. Air nozzle; 4. Return air vent; 5. Partition; 6. Rear door; 61. Sliding nut seat; 7. Moving mechanism; 71. Base; 72. Pedal; 73. First drive rod; 731. First rotating tooth; 732. First rotating wheel; 74. Second drive rod; 741. Second rotating tooth; 742. Second rotating wheel; 75. Shaft; 751. Thread; 752. First ratchet; 753. Second ratchet; 76. Support column; 761. First electromagnet; 77. Compression spring; 78. Cylinder; 781. Second electromagnet; 79. Rack; 791. Connecting block; 792. First tooth; 793. First spring; 794. Second tooth; 795. Second spring; 8. Belt; 9. Through-beam sensor. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0045] like Figures 1 to 9 As shown, a modular air shower includes: an air shower chamber 1, a front door 2, air nozzles 3, return air inlets 4, partitions 5, and a rear door 6; the front door 2 is installed at the front end of the air shower chamber 1, multiple air nozzles 3 are installed on the inner wall of the air shower chamber 1, multiple return air inlets 4 are installed on the inner wall of the air shower chamber 1, the return air inlets 4 are located below the air nozzles 3, multiple partitions 5 are installed inside the air shower chamber 1, the multiple partitions 5 isolate the multiple air nozzles 3 and return air inlets 4 into multiple air chambers, and the rear door 6 is installed inside the air shower chamber 1; it also includes a moving mechanism 7, the moving mechanism 7 is installed on Inside the air shower chamber 1, and with the moving mechanism 7 located at the bottom of the rear door 6, the moving mechanism 7 moves downward by stepping on the pedal 72. The pedal 72 moves downward and drives the first drive rods 73 on both sides to rotate via the rack 79. The first drive rods 73 drive the rotating shafts 75 to rotate via the belt 8. The rotating shafts 75 on both sides rotate simultaneously, causing the sliding nut seats 61 on the rotating shafts 75 to move, thus driving the rear door 6 to move. At the same time, the compression spring 77 at the bottom of the pedal 72 is compressed, and the first electromagnet 761 and the second electromagnet 781 attract each other. Then, air is sprayed out from the air nozzle 3.

[0046] When the user presses the pedal 72, the pedal 72 moves downward, and the rack and pinion structure drives the first drive rods 73 on both sides to rotate. The first drive rods 73 transmit power through the connected belt 8, driving the rotating shaft 75 to rotate synchronously; the synergistic effect of the two rotating shafts 75 further enables the sliding nut seat 61 fixed on the rotating shaft 75 to move smoothly, thereby realizing the forward and backward movement of the rear door 6.

[0047] During this process, the compression spring 77 at the bottom of the pedal 72 is compressed and stores potential energy, subsequently causing the pedal 72 to return to its initial position. In addition, the moving mechanism 7 is designed with a first electromagnet 761 and a second electromagnet 781, which attract each other to provide additional fixing and locking functions, effectively improving the safety and stability of the system.

[0048] like Figure 4 and Figure 5 As shown, the moving mechanism 7 includes: a base 71, pedals 72, first drive rods 73, second drive rods 74, a rotating shaft 75, a support column 76, a compression spring 77, a cylinder 78, and a rack 79. The base 71 is installed at the bottom of the air shower chamber 1. Multiple pedals 72 are linearly arrayed inside the base 71. Two first drive rods 73 are installed inside the base 71, located below both ends of the pedals 72. Two second drive rods 74 are installed inside the base 71, located outside the two first drive rods 73. 4. The two first drive rods 73 are located on the same plane. Two rotating shafts 75 are installed inside the base 71. The two rotating shafts 75 are located diagonally above the outside of the two second drive rods 74. A support column 76 is installed at the center of the bottom of the pedal 72. A compression spring 77 is installed at the bottom of the pedal 72 and is located outside the support column 76. A cylinder 78 is installed inside the base 71, and the support column 76 slides inside the cylinder 78. A rack 79 is installed at both ends of the pedal 72. The rack 79 is located between the first drive rods 73 and the second drive rods 74 on both sides.

[0049] When the first worker steps on pedal 72, pedal 72 moves downward, causing the rack 79 at the bottom of pedal 72 to move downward as well. The first tooth 792 on the inner side of rack 79 meshes with the first rotating tooth 731 on the first drive rod 73, pushing the first rotating tooth 731 to rotate, which in turn drives the first drive rods 73 on both sides to rotate. The first drive rods 73 drive the first rotating wheel 732 to rotate, transmitting power through belt 8 to the first ratchet 752, which drives the rotating shaft 75 to rotate. The rotating shafts 75 on both sides rotate synchronously, causing the sliding nut seat 61 on the rotating shaft 75 to move backward together, thereby pushing the rear door 6 backward a distance equal to the width of pedal 72. At this time, the first electromagnet 761 in the support column 76 and the second electromagnet 781 in the cylinder 78 are energized, generating a magnetic force that attracts each other, preventing pedal 72 from returning to its original position.

[0050] When the second worker enters, the first worker steps on the second pedal 72, causing it to move downwards, which in turn moves the rear door 6 backwards again. If more workers enter subsequently, the first worker will step on the third pedal 72, the second worker on the second pedal 72, the third worker on the first pedal 72, and so on, causing the rear door 6 to move accordingly. When no workers enter, the front door 2 closes, and the air nozzles 3 inside the air shower chamber 1 begin to operate, spraying out a large amount of airflow for air showering.

[0051] like Figure 6 As shown, a plurality of first rotating teeth 731 are linearly arrayed on the first drive rod 73, and a plurality of second rotating teeth 741 are linearly arrayed on the second drive rod 74, and the first rotating teeth 731 and the second rotating teeth 741 respectively mesh with the two sides of the rack 79.

[0052] When the pedal 72 moves downward, the first tooth 792 on the rack 79 drives the first rotating tooth 731 to rotate, thereby causing the first drive rod 73 to rotate. When the pedal 72 moves upward, the second tooth 794 on the rack 79 drives the second rotating tooth 741 to rotate, thereby causing the second drive rod 74 to rotate.

[0053] like Figure 7 As shown, a first rotating wheel 732 is provided on one end of the first drive rod 73, and a second rotating wheel 742 is provided on one end of the second drive rod 74, and the first rotating wheel 732 and the second rotating wheel 742 are not located on the same side.

[0054] When pedal 72 moves downward, the first tooth 792 on rack 79 will drive the first drive rod 73 to rotate, which in turn drives the first rotating wheel 732 to rotate. The first rotating wheel 732 needs to transmit power to the first ratchet 752 on shaft 75 through belt 8, which in turn drives shaft 75 to rotate. Similarly, when pedal 72 moves upward, the second tooth 794 on rack 79 will drive the second drive rod 74 to rotate, which in turn drives the second rotating wheel 742 to rotate. The second rotating wheel 742 needs to transmit power to the second ratchet 753 on shaft 75 through belt 8, which in turn drives shaft 75 to rotate.

[0055] like Figure 6 and Figure 7 As shown, the two rotating shafts 75 are provided with threads 751, and the helical directions of the two threads 751 are opposite. The rotating shaft 75 is provided with a sliding nut seat 61, and the sliding nut seat 61 cooperates with the threads 751.

[0056] When the pedal 72 moves downward, the first drive rod 73 will start to rotate, driving the two rotating shafts 75 on both sides to rotate synchronously. In order to ensure that the sliding nut seats 61 on the rotating shafts 75 can move in the same direction at the same time, the threads 751 on the two rotating shafts 75 on both sides must be designed to rotate in opposite directions.

[0057] like Figure 7 As shown, a first ratchet 752 is provided on one end of the rotating shaft 75, and a second ratchet 753 is provided on the other end. The unidirectional driving directions of the first ratchet 752 and the second ratchet 753 are opposite. The first ratchet 752 and the second ratchet 753 are respectively connected to the first rotating wheel 732 and the second rotating wheel 742 through the belt 8.

[0058] When the first drive rod 73 rotates, the shaft 75 rotates accordingly. However, due to the action of the second ratchet 753, the shaft 75 will not drive the second drive rod 74 to rotate. Similarly, when the second drive rod 74 rotates, the action of the first ratchet 752 will prevent the shaft 75 from driving the first drive rod 73 to rotate. In this way, the power can be rationally distributed, ensuring that all components work together, thereby greatly improving the transmission efficiency of the entire system.

[0059] like Figure 8 As shown, a first electromagnet 761 is installed at the bottom of the support column 76, and a second electromagnet 781 is installed at the bottom of the cylinder 78.

[0060] By adjusting the magnetic force between the first electromagnet 761 and the second electromagnet 781, the support column 76 and the cylinder 78 can be locked together, preventing the subsequent pedal 72 from pressing down after a worker passes through the rear door 6, thus preventing the rear door 6 from moving again. Simultaneously, the electromagnets also lock the already pressed pedal 72, preventing it from rising after a worker leaves, thus preventing the rear door 6 from moving. Once all workers have left the air shower, the first electromagnet 761 and the second electromagnet 781 are de-energized, releasing the locking mechanism and allowing the pedal 72 and the rear door 6 to return to their initial positions.

[0061] like Figure 9 As shown, the rack 79 includes a connecting block 791, a first tooth 792, a first spring 793, a second tooth 794, and a second spring 795. The top of the connecting block 791 is connected to the bottom of the pedal 72. One end of the first spring 793 is installed inside the connecting block 791. The first tooth 792 is slidably installed inside the connecting block 791 and is connected to the first spring 793. One end of the second spring 795 is installed outside the connecting block 791. The second tooth 794 is slidably installed outside the connecting block 791 and is connected to the second spring 795. The tips of the first tooth 792 and the second tooth 794 are in opposite directions.

[0062] When the rack 79 moves downward, the first tooth 792 extends and drives the first drive rod 73 to rotate, while the second tooth 794 is compressed into the connecting block 791. Conversely, when the rack 79 moves upward, the second tooth 794 extends to drive the second drive rod 74 to rotate, while the first tooth 792 is compressed into the connecting block 791. Throughout the up-and-down movement of the pedal 72, the first tooth 792 and the second tooth 794 automatically return to their initial positions due to the elastic force of the first spring 793 and the second spring 795, thus ensuring stable system operation and smooth function switching.

[0063] The downward height of the pedal 72 is equal to the backward distance of the rear door 6, and the backward distance of the rear door 6 is equal to the width of the pedal 72.

[0064] The downward movement of pedal 72 is equal to the backward movement of rear door 6, ensuring precise system synchronization. When the first worker enters the air shower and steps on pedal 72, rear door 6 moves backward the corresponding distance, making room for the next pedal 72 while allowing rear door 6 to move further, ensuring space for the second worker to enter. This design not only optimizes space utilization but also allows for rapid flow of people.

[0065] like Figure 2 and Figure 3 As shown, the front door 2 is equipped with wires 21 on its top, and the rear door 6 is equipped with beam sensors 9 on both sides.

[0066] The wire 21 provides power to the rear door 6 and the components mounted on it, while the through-beam sensor 9 senses the closing status of the front door 2. When the front door 2 is closed, the through-beam sensor 9 sends a signal to control the air nozzles 3 of the relevant modules inside the air shower to start working, thereby significantly improving the operating efficiency of the air shower.

[0067] Working process: When a worker opens the front door 2, the first person enters the air shower chamber 1 and steps on pedal 72. Due to the weight of the person, pedal 72 experiences downward pressure, causing it to move downwards. This causes the rack 79 at the bottom of pedal 72 to move downwards. The first tooth 792 on the inner side of rack 79 engages with the first rotating tooth 731 on the first drive rod 73, driving the first rotating tooth 731 to rotate. This causes the first drive rods 73 on both sides to rotate. The first drive rods 73 drive the first rotating wheel 732 to rotate and transmit power to the first ratchet 752 via belt 8. The rotation of the first ratchet 752 drives the rotating shaft 75 to rotate. 5 The second ratchet 753 at the other end will not rotate. The simultaneous rotation of the two shafts 75 will drive the sliding nut seat 61 on the shaft 75 to move backward, thereby moving the entire rear door 6 a distance the width of a pedal 72. The second tooth 794 on the outer side of the rack 79 at the bottom of the pedal 72 will be compressed into the connecting block 791. The second spring 795 inside it will be compressed. The first electromagnet 761 inside the support column 76 and the second electromagnet 781 inside the cylinder 78 will be energized, so that the magnetism between the first electromagnet 761 and the second electromagnet 781 is different and they attract each other, preventing the pedal 72 from returning to its original position.

[0068] When the second worker enters, the first worker will step on the second pedal 72, causing the second pedal 72 to move downwards, thus causing the rear door 6 to move backwards again. If more workers enter, the first person will step on the third pedal 72, the second person will step on the second pedal 72, and the third person will step on the first pedal 72. When no more workers enter, the front door 2 will close. At this time, the through-beam sensor 9 detects that the front door 2 is closed, and the air nozzles 3 inside the air shower chamber 1 will work and spray out a large amount of air.

[0069] When the front door 2 is closed, the first electromagnet 761 and the second electromagnet 781 inside the pedal 72, which does not move downwards, will be energized and generate the same magnetism, causing them to repel each other. After the air shower chamber 1 finishes working, the air nozzle 3 will not blow air, and the first worker can open the back door 6 and walk over the pedal 72. At this time, the subsequent pedals 72 will not move downwards, and the pedal 72 that was stepped on at the front door 2 will not move upwards and return to its original position. This continues until the last worker walks out of the air shower chamber 1. Then, the first electromagnet 761 and the second electromagnet 781 inside the stepped-on pedal 72 will be de-energized, and the elastic potential energy of the compressed spring 77 will cause the pedal 72 to move upwards. As the pedal 72 moves upward, the second tooth 794 on the bottom rack 79 will mesh with the second rotating tooth 741, causing the second drive rods 74 on both sides to rotate in the opposite direction, thereby causing the second rotating wheel 742 to rotate. The first tooth 792 on the inner side of the rack 79 will be compressed into the connecting block 791, and the first compression spring 77 will be compressed. The second rotation transmits power to the second ratchet 753 through the belt 8. The rotation of the second ratchet 753 will drive the rotating shaft 75 to rotate. At this time, the first ratchet 752 at the other end of the rotating shaft 75 will not rotate, thereby causing the rotating shaft 75 to rotate in the opposite direction, and causing the sliding nut seat 61 on the rotating shaft 75 to move in the opposite direction. The sliding nut seat 61 will drive the rear door 6 to return to its original position.

[0070] Therefore, by controlling the distance the rear door 6 moves according to the number of people entering the air shower chamber 1, the operation of each air nozzle 3 inside the entire air shower chamber 1 can be controlled, which greatly saves energy and improves the efficiency of the air shower operation.

[0071] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A modular air shower, comprising: The air shower chamber (1), front door (2), air nozzles (3), return air inlet (4), partition (5) and rear door (6); the front door (2) is installed at the front end of the air shower chamber (1), multiple air nozzles (3) are installed on the inner wall of the air shower chamber (1), multiple return air inlets (4) are installed on the inner wall of the air shower chamber (1), the return air inlets (4) are located below the air nozzles (3), multiple partitions (5) are installed inside the air shower chamber (1), the multiple partitions (5) separate the multiple air nozzles (3) and return air inlets (4) into multiple air chambers, and the rear door (6) is installed inside the air shower chamber (1); The feature is that it also includes a moving mechanism (7), which is installed inside the air shower chamber (1) and located at the bottom of the rear door (6). The moving mechanism (7) moves downward by stepping on the pedal (72), and the pedal (72) moves downward and drives the first drive rods (73) on both sides to rotate through the rack (79). The first drive rods (73) drive the rotating shaft (75) to rotate through the belt (8). The rotating shafts (75) on both sides rotate simultaneously, causing the sliding nut seat (61) on the rotating shaft (75) to move, driving the rear door (6) to move. At the same time, the compression spring (77) at the bottom of the pedal (72) is compressed, and the first electromagnet (761) and the second electromagnet (781) attract each other. Then, the air is sprayed out from the air nozzle (3). The moving mechanism (7) includes: a base (71), pedals (72), first drive rods (73), second drive rods (74), a rotating shaft (75), a support column (76), a compression spring (77), a cylinder (78), and a rack (79); the base (71) is installed at the bottom of the air shower chamber (1), and multiple pedals (72) are linearly arrayed inside the base (71). Two first drive rods (73) are installed inside the base (71), and the two first drive rods (73) are located below both ends of the pedals (72). Two second drive rods (74) are installed inside the base (71), and the two second drive rods (74) are located outside the two first drive rods (73), and the two second drive rods (75) are located outside the two first drive rods (73). 4) The base (71) is located on the same plane as the two first drive rods (73). Two rotating shafts (75) are installed inside the base (71). The two rotating shafts (75) are located diagonally above the outside of the two second drive rods (74). A support column (76) is installed at the center of the bottom of the pedal (72). A compression spring (77) is installed at the bottom of the pedal (72). The compression spring (77) is located outside the support column (76). A cylinder (78) is installed inside the base (71). The support column (76) slides inside the cylinder (78). A rack (79) is installed at both ends of the pedal (72). The rack (79) is located between the first drive rods (73) and the second drive rods (74) on both sides. The two rotating shafts (75) are provided with threads (751), and the helical directions of the two threads (751) are opposite. The rotating shafts (75) are provided with sliding nut seats (61), and the sliding nut seats (61) cooperate with the threads (751). The bottom of the support column (76) is equipped with a first electromagnet (761), and the bottom of the cylinder (78) is equipped with a second electromagnet (781).

2. The modular air shower according to claim 1, characterized in that, The first drive rod (73) is linearly arrayed with a plurality of first rotating teeth (731), and the second drive rod (74) is linearly arrayed with a plurality of second rotating teeth (741), and the first rotating teeth (731) and the second rotating teeth (741) respectively mesh with the two sides of the rack (79).

3. A modular air shower according to claim 1, characterized in that, The first drive rod (73) has a first rotating wheel (732) on one end, and the second drive rod (74) has a second rotating wheel (742) on one end, and the first rotating wheel (732) and the second rotating wheel (742) are not located on the same side.

4. A modular air shower according to claim 3, characterized in that, The rotating shaft (75) has a first ratchet (752) on one end and a second ratchet (753) on the other end. The first ratchet (752) and the second ratchet (753) have opposite unidirectional driving directions. The first ratchet (752) and the second ratchet (753) are connected to the first rotating wheel (732) and the second rotating wheel (742) respectively via belts (8).

5. A modular air shower according to claim 1, characterized in that, The rack (79) includes a connecting block (791), a first tooth (792), a first spring (793), a second tooth (794), and a second spring (795). The top of the connecting block (791) is connected to the bottom of the pedal (72). One end of the first spring (793) is installed inside the connecting block (791). The first tooth (792) is slidably installed inside the connecting block (791) and is connected to the first spring (793). One end of the second spring (795) is installed outside the connecting block (791). The second tooth (794) is slidably installed outside the connecting block (791) and is connected to the second spring (795). The tips of the first tooth (792) and the second tooth (794) are in opposite directions.

6. A modular air shower according to claim 1, characterized in that, The downward height of the pedal (72) is equal to the backward distance of the rear door (6), and the backward distance of the rear door (6) is equal to the width of the pedal (72).

7. A modular air shower according to claim 1, characterized in that, The front door (2) is equipped with wires (21) on the top, and the rear door (6) is equipped with beam sensors (9) on both sides.

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