Clean door capable of being quickly mounted and dismounted

Abstract

The invention relates to the technical field of clean doors, in particular to a clean door capable of being quickly mounted and dismounted, which comprises a main frame and a main door plate, the main door plate is positioned on the inner ring side of the main frame, an auxiliary door plate is rotatably inserted into the front surface of the main door plate, and the right end of the auxiliary door plate is of a concave structure; a double-end telescopic bolt structure which stretches up and down is installed in the concave structure of the auxiliary door plate, the inner ring face of the main frame is in an annular groove shape, an annular expansion bag is arranged in the annular groove of the main frame, and the outer ring face of the annular expansion bag is fixed to the inner ring face of the annular groove of the main frame. Cavities are formed in the main frame and located on the two sides of the upper line of the annular expansion bag. Air in the air cavity box can be pushed into the annular expansion bag through the ventilation pipe by driving the bent plate and the air pressure structure, the inflated air enables the annular expansion bag to expand inwards to fully block a gap between the main door plate and the main frame, and spaces on the two sides of the main door plate are sealed and separated.

Description

Technical Field

[0001] The invention relates to the technical field of clean doors, and in particular to a clean door which can be quickly installed and disassembled. Background Art

[0002] Clean doors are suitable for cleanrooms, hospitals, pharmaceutical factories, food factories and other places with cleanliness requirements. The door body mold is integrally formed, seamless, corrosion-resistant, and the overall performance of the product is good. It has the advantages of beautiful appearance, flatness, high strength, corrosion resistance, no dust accumulation, no dust generation, and easy cleaning.

[0003] Chinese patent announcement number CN213510237U discloses a steel clean door that can be quickly installed and disassembled, including a clean door body, the interior of the clean door body is provided with a high-efficiency sound-absorbing protection mechanism, the high-efficiency sound-absorbing protection mechanism includes a sound-absorbing sponge, a partition steel plate, a rubber film, and a foam glass layer. A rubber strip is provided at the upper end of the clean door body, and a quick disassembly mechanism is provided on the outer surface of one side of the clean door body. The quick disassembly mechanism includes a frame, a connecting shaft, a plug, a mounting hole, and an anti-wear protrusion. The front end of the clean door body is provided with a door lock, a handle, a fingerprint unlocker and a tempered glass window, the door lock is located at the lower end of the handle, the fingerprint unlocker is located at the upper end of the handle, and the tempered glass window is located at the upper end of the fingerprint unlocker. The utility model discloses a steel clean door that can be quickly installed and disassembled, which has a simple structure, is easy to align, is convenient for quick installation and disassembly, and has good sound insulation effect, bringing better prospects for use. The above-mentioned related technologies have the following defects: when the clean door is installed in an easy-to-disassemble manner, there is a movable gap at the connection between the door frame and the door panel, which results in a low overall sealing performance and cannot be used in environments that require sealing. Summary of the invention

[0004] In order to ensure the sealing performance of the clean door as a whole, the present invention provides a clean door that can be quickly installed and disassembled.

[0005] The present invention provides a clean door that can be quickly installed and disassembled, which adopts the following technical scheme: it includes a main frame and a main door plate, the main door plate is located on the inner ring side of the main frame, the front of the main door plate is rotatably plugged with a secondary door plate, the right end of the secondary door plate is a concave structure, and a double-headed telescopic latch structure that can be telescoped up and down is installed in the concave structure of the secondary door plate, the inner ring surface of the main frame is an annular groove, an annular expansion bag is arranged inside the annular groove of the main frame, the outer ring surface of the annular expansion bag is fixed to the inner ring surface of the annular groove of the main frame, and cavities are opened inside the main frame and on both sides of the upper line of the annular expansion bag. A hard tube is fixedly inserted into the inner walls of the two cavities on one side close to each other, and an annular expansion bag is slidably sleeved on the outer surface of the hard tube. An end shaft is rotatably inserted into the inside of the hard tube, and a transmission rod shaft is slidably inserted into the end of the end shaft close to the main door panel. The main door panel is slidably sleeved on the outer surface of the transmission rod shaft, and the secondary door panel is slidably sleeved on the outer surface of the transmission rod shaft. A delay structure is installed at one end of the transmission rod shaft located inside the main door panel, and the delay structure is installed inside the main door panel. The part of the transmission rod shaft located outside the main door panel is prismatic, and the end of the transmission rod shaft located inside the concave structure of the secondary door panel is connected to a double-headed telescopic pin structure.

[0006] An air cavity box is installed inside the cavity, and a pneumatic structure is slidably inserted inside the air cavity box. One end of the pneumatic structure close to the transmission rod shaft slides through the interior of the air cavity box, and a bending plate is slidably sleeved on the outside of the air cavity box. One end of the pneumatic structure located outside the air cavity box is fixed to the bending plate, a tooth plate is fixed on the bottom surface of the bending plate, and a gear is meshed on the back of the tooth plate. The gear is rotatably inserted inside the cavity, and the shaft rod and end shaft of the gear are driven by a conveyor belt. A positioning structure is installed on the front of the auxiliary door panel, and the other end of the positioning structure is connected to the front of the main frame. A ventilation pipe is fixedly penetrated at the left end of the air cavity box, and the other end of the ventilation pipe is fixedly penetrated through the inner wall of the cavity and is fixedly connected to the annular expansion bag.

[0007] Optionally, the delay structure includes a long cover tube, which is slidably sleeved on one end of the transmission rod shaft located inside the main door panel, and the long cover tube is fixedly inserted into the inside of the main door panel. Two shift plates are fixed to one end of the transmission rod shaft located inside the long cover tube, and baffles are fixed on the inner annular surface of the long cover tube and on both sides of the shift plates.

[0008] Optionally, the double-headed telescopic latch structure includes a double-headed threaded rod and a control cylinder, the middle part of the control cylinder is fixedly sleeved on the outer surface of the double-headed threaded rod, the two ends of the double-headed threaded rod are respectively coaxially threadedly inserted into the interior of adjacent transmission rod shafts, and the control cylinder is rotatably inserted into the recessed structure of the secondary door panel.

[0009] Optionally, the pneumatic structure includes a pneumatic plate and two pneumatic rods. The pneumatic plate is slidably sleeved on the outer surface of the pneumatic rods. The other end of the pneumatic rods slides through the interior of an air cavity box. The air cavity box is slidably sleeved on the outer surface of the pneumatic plate. The pneumatic rods are elastically connected to the pneumatic plate, and one end of the pneumatic rods located outside the air cavity box is fixed to the bending plate.

[0010] Optionally, the positioning structure includes a control rod and a grip tube, both ends of the control rod are fixed to the auxiliary door panels, the grip tube is slidably sleeved in the middle position of the control rod, an inner rod is slidably inserted inside the control rod, a synchronous cylinder is slidably sleeved on the outer surface of the control rod and located above the grip tube, the inner annular surfaces of the synchronous cylinder and the grip tube both slide through the outer annular surface of the control rod, one end of the synchronous cylinder and the grip tube located on the inner side of the control rod is fixedly sleeved on the outer surface of the inner rod, the lower end of the inner rod is elastically connected to the control rod, a lower clamping block is fixed on the upper surface of the synchronous cylinder, the upper surface of the lower clamping block is a plurality of protrusion-shaped structures, the upper surface of the lower clamping block is slidably matched with an upper clamping plate, the upper clamping plate is fixed to the main frame, and the bottom surface of the upper clamping plate is provided with a plurality of grooves matching the protrusion-shaped structures of the lower clamping block.

[0011] Optionally, the outer surface of the control rod is provided with a vertical groove structure that matches with the inner annular surfaces of the grip tube and the synchronization tube, and the upper end of the control rod is located above the upper surface of the main door panel.

[0012] Optionally, the left and right ends of the main door panel and the auxiliary door panel are both semi-arc-shaped, the right end arc of the main door panel is concentric with the right end arc of the auxiliary door panel, the transmission rod shaft is coaxially arranged with the right end arc of the main door panel, the left and right ends of the main door panel are tangent to the left and right inner walls of the main frame, and caulking rods are arranged in front of the left and right ends of the main frame, the arc space between the main frame and the main door panel and the rear end of the caulking rod cooperate with the two caulking rods, the two caulking rods are respectively in sliding contact with the left and right inner walls of the main frame, the upper surfaces of the two caulking rods are fixed with vertical shafts, the upper ends of the two vertical shafts are slidably sleeved with track frames, the track frame is fixed to the front of the main frame, a double-headed elastic telescopic rod is arranged between the main frame and the control rod, the two ends of the double-headed elastic telescopic rod are respectively fixedly sleeved on the upper ends of the two vertical shafts, a vertical block is fixed on the upper surface of the middle part of the double-headed elastic telescopic rod, the upper surface of the vertical block is slidably sleeved with a bottom groove frame, the back side of the bottom groove frame is fixed to the front side of the main frame, and the vertical block is elastically connected to the inner wall of the bottom groove frame.

[0013] Optionally, the upper clamping plate is in the shape of an arc, the arc axis of the upper clamping plate is coaxially arranged with the transmission rod axis, and the lower clamping block is an arc-shaped block structure that matches the upper clamping plate.

[0014] Optionally, the interior of the track frame is a transparent groove structure, the rear end of the track frame is arranged in a longitudinal straight line, the front ends of the two track frames are bent toward one end away from each other, the length of the internal groove at the straight end of the track frame is greater than the distance between the back side of the caulking rod and the front side of the main frame, and the distance between the side of the two caulking rods away from each other and the inner wall of one side of the adjacent main frame is less than the lateral distance of the internal groove at the bent end of the track frame.

[0015] In summary, the present invention includes the following beneficial technical effects:

[0016] 1. The present invention arranges an annular expansion bag, an air cavity box, a bending plate and a transmission rod shaft. When the auxiliary door panel and the main door panel are pushed to close the door, the transmission rod shaft is driven to rotate. The transmission rod shaft rotates the gear through the conveyor belt. The gear drives the bending plate and the air pressure structure to push the gas in the air cavity box into the annular expansion bag through the ventilation pipe by engaging with the tooth plate. The filled gas causes the annular expansion bag to expand inward to fully block the gap between the main door panel and the main frame, thereby closing and separating the space on both sides of the main door panel.

[0017] 2. The present invention provides a track frame, a double-headed elastic telescopic rod and a caulking rod. When the main door panel is closed, the control rod pushes the double-headed elastic telescopic rod to move backward, driving the two caulking rods to respectively block the space between the main frame and the main door panel, and the caulking rod assists the arc end of the main door panel to stably form a blockage with the annular expansion bag. When the control rod is pulled away from the main frame, the vertical block elastically connected to the bottom groove frame has a tendency to drive the double-headed elastic telescopic rod to move forward. When the double-headed elastic telescopic rod initially moves forward, the vertical shaft gradually drives the caulking rod to move to the front of the main frame by moving on the straight end of the track frame. Then, when the double-headed elastic telescopic rod continues to move away from the main frame, the double-headed elastic telescopic rod pushes the vertical shaft and the caulking rod away from the main door panel under its own elasticity, so that the caulking rod no longer interferes with the opening of the main door panel.

[0018] 3. The present invention sets a long cover tube, a paddle and a baffle. When closing the main door panel and the auxiliary door panel, the main door panel is first controlled to close to seal the main frame, and then the auxiliary door panel is closed to contact the main door panel, so that after the main door panel is closed, the auxiliary door panel is closed, and then the gas in the air cavity box is pushed into the annular expansion bag. When opening, the auxiliary door panel is first pulled open to deflate the annular expansion bag, and then the main door panel is pulled open, thereby effectively reducing the friction between the main door panel and the annular expansion bag in the expanded state, and increasing the service life of the annular expansion bag.

[0019] 4. The present invention sets a double-headed threaded rod and a control cylinder. During disassembly, the control cylinder is rotated to drive the double-headed threaded rod to engage with the two transmission rod shafts respectively, drive and pull the two transmission rod shafts closer to each other, control the transmission rod shafts to be completely retracted into the main door panel, and quickly separate the main door panel from the main frame. During installation, the transmission rod shaft is controlled to be coaxial with the hard tube, and then the double-headed threaded rod is rotated to control the transmission rod shafts to move away from each other and insert them into the hard tube, so that the transmission rod shaft can drive the hard tube to rotate synchronously, and the main door panel and the main frame are installed together. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of the connection between the control rod and the inner rod in an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the structure inside the cavity in an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the connection between the conveyor belt and the gear in an embodiment of the present invention;

[0024] Figure 5 is a schematic structural diagram of the connection between the gas pressure rod and the gas pressure plate in an embodiment of the present invention;

[0025] Figure 6 is a schematic top view of some structures in an embodiment of the present invention;

[0026] Figure 7 2 is a schematic diagram of the structure of the connection between the double-axis threaded rod and the control cylinder in an embodiment of the present invention;

[0027] Figure 8 It is a schematic front view of some structures in an embodiment of the present invention;

[0028] Fig. 9 In the embodiment of the present invention Figure 7 A schematic diagram of the enlarged structure in the middle.

[0029] Figure numerals: 1, main frame; 2, main door panel; 3, auxiliary door panel; 4, double-ended telescopic bolt structure; 41, double-ended threaded rod; 42, control cylinder; 5, annular expansion bag; 6, cavity; 7, hard tube; 8, end shaft; 9, transmission rod shaft; 10, delay structure; 101, long cover tube; 102, dial plate; 103, baffle; 11, air cavity box; 12, air pressure structure; 121, air pressure plate; 122 , pneumatic rod; 13, gear; 14, bending plate; 15, toothed plate; 16, positioning structure; 161, control rod; 162, grip tube; 163, inner rod; 164, synchronous cylinder; 165, lower clamping block; 166, upper clamping plate; 17, ventilation pipe; 18, conveyor belt; 19, caulking rod; 20, track frame; 21, vertical axis; 22, double-headed elastic telescopic rod; 23, bottom slot frame; 24, vertical block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 9 The present invention is described in further detail.

[0031] The embodiment of the present invention discloses a clean door that can be quickly installed and disassembled. Figure 1-Figure 9 As shown, it includes a main frame 1 and a main door panel 2, the main door panel 2 is located on the inner ring side of the main frame 1, and a secondary door panel 3 is rotatably inserted on the front of the main door panel 2, the right end of the secondary door panel 3 is a concave structure, and a double-headed telescopic latch structure 4 that can be telescoped up and down is installed in the concave structure of the secondary door panel 3, the inner ring surface of the main frame 1 is an annular groove, and an annular expansion bag 5 is arranged inside the annular groove of the main frame 1, and the outer ring surface of the annular expansion bag 5 is fixed to the inner ring surface of the annular groove of the main frame 1, and the annular expansion bag 5 will expand after being filled with gas, and when the gas in the annular expansion bag 5 is extracted, the annular expansion bag 5 will shrink and be collected into the annular groove of the main frame 1.

[0032] Cavities 6 are provided inside the main frame 1 and on both sides of the upper line of the annular expansion bag 5. A hard tube 7 is fixedly inserted into the inner wall of the two cavities 6 on the side close to each other. The annular expansion bag 5 is slidably sleeved on the outer surface of the hard tube 7. An end shaft 8 is rotatably inserted inside the hard tube 7. A transmission rod shaft 9 is slidably inserted at one end of the end shaft 8 close to the main door panel 2. The main door panel 2 is slidably sleeved on the outer surface of the transmission rod shaft 9. The auxiliary door panel 3 is slidably sleeved on the outer surface of the transmission rod shaft 9. A delay structure 10 is installed at one end of the transmission rod shaft 9 located inside the main door panel 2. The delay structure 10 includes a long cover tube 101, which is slidably sleeved on one end of the transmission rod shaft 9 located inside the main door panel 2. At the end, the long cover tube 101 is fixedly inserted into the interior of the main door panel 2, and two paddles 102 are fixed on one end of the transmission rod shaft 9 located inside the long cover tube 101. Baffles 103 are fixed on the inner annular surface of the long cover tube 101 and on both sides of the paddle plates 102. When the transmission rod shaft 9 rotates, the paddle plates 102 are driven to rotate synchronously. When the paddle plates 102 rotate, the paddle plates 102 will contact the baffles 103 in the moving direction before pushing the main door panel 2 to rotate. When the secondary door panel 3 is pulled open, the annular expansion bag 5 will shrink first, and then the main door panel 2 will rotate, reducing the wear of the annular expansion bag 5 when the main door panel 2 rotates. The part of the transmission rod shaft 9 located outside the main door panel 2 is prismatic, and can drive the transmission rod shaft 9 to rotate synchronously when the secondary door panel 3 rotates.

[0033] One end of the transmission rod shaft 9 located inside the concave structure of the auxiliary door panel 3 is connected to the double-headed telescopic latch structure 4 .

[0034] The double-headed telescopic latch structure 4 includes a double-headed threaded rod 41 and a control cylinder 42. The middle part of the control cylinder 42 is fixedly sleeved on the outer surface of the double-headed threaded rod 41. The two ends of the double-headed threaded rod 41 are respectively coaxially threadedly inserted into the adjacent transmission rod shafts 9. The control cylinder 42 is rotatably inserted into the recessed structure of the secondary door panel 3. When the double-headed threaded rod 41 is rotated forward and reversely, the double-headed threaded rod 41 drives the two transmission rod shafts 9 to approach or move away from each other. When the two transmission rod shafts 9 approach each other, they separate from the end shaft 8 and retract into the main door panel 2, so that the main door panel 2 can be separated from the main frame 1 to complete the disassembly. When the two transmission rod shafts 9 move away from each other, they can be inserted into the end shaft 8 to complete the installation of the main door panel 2.

[0035] The air chamber box 11 is installed inside the cavity 6, and the air chamber box 11 is slidably inserted with a pneumatic structure 12. The end of the pneumatic structure 12 close to the transmission rod shaft 9 slides through the interior of the air chamber box 11. The outside of the air chamber box 11 is slidably sleeved with a bent plate 14. The end of the pneumatic structure 12 located outside the air chamber box 11 is fixed to the bent plate 14. The pneumatic structure 12 includes a pneumatic plate 121 and two pneumatic rods 122. The pneumatic plate 121 is slidably sleeved on the outer surface of the pneumatic rod 122, and the other end of the pneumatic rod 122 slides through Inside the air cavity box 11, the air cavity box 11 is slidably sleeved on the outer surface of the air pressure plate 121, and the air pressure rod 122 is elastically connected to the air pressure plate 121. One end of the air pressure rod 122 is located outside the air cavity box 11 and is fixed to the bending plate 14. When the air pressure rod 122 pushes the air pressure plate 121 through the elastic connection to push the gas in the air cavity box 11 into the annular expansion bag 5, when the annular expansion bag 5 completes the sealing and reaches the maximum expansion, when the air pressure rod 122 continues to move to the left, the air pressure plate 121 elastically moves relative to the air pressure rod 122.

[0036] A toothed plate 15 is fixed to the bottom surface of the bending plate 14, and a gear 13 is meshed on the back surface of the toothed plate 15. The gear 13 is rotatably inserted into the interior of the cavity 6. The shaft of the gear 13 and the end shaft 8 are driven by a conveyor belt 18. When the transmission rod shaft 9 rotates, the matching end shaft 8 and the conveyor belt 18 provide power for the rotation of the gear 13.

[0037] A positioning structure 16 is installed on the front side of the auxiliary door panel 3 , and the other end of the positioning structure 16 is connected to the front side of the main frame 1 .

[0038] The positioning structure 16 includes a control rod 161 and a grip tube 162. The two ends of the control rod 161 are fixed to the auxiliary door plate 3. The grip tube 162 is slidably sleeved in the middle position of the control rod 161. The inner rod 163 is slidably inserted in the control rod 161. The outer surface of the control rod 161 and the upper surface of the grip tube 162 are slidably sleeved with a synchronous cylinder 164. The inner annular surfaces of the synchronous cylinder 164 and the grip tube 162 both slide through the outer annular surface of the control rod 161. The outer surface of the control rod 161 is provided with a The inner ring surface of the synchronous cylinder 162 and the synchronous cylinder 164 cooperates with each other in a vertical groove-shaped structure. The upper end of the control rod 161 is located above the upper surface of the main door panel 2, so that the synchronous cylinder 164 and the grip cylinder 162 can move up and down on the surface of the control rod 161. The ends of the synchronous cylinder 164 and the grip cylinder 162 located on the inner side of the control rod 161 are fixedly sleeved on the outer surface of the inner rod 163. The lower end of the inner rod 163 is elastically connected to the control rod 161. The upper surface of the synchronous cylinder 164 is fixed with a lower block 165. The upper surface is a plurality of convex structures, and the upper surface of the lower card block 165 is slidably matched with an upper card plate 166, and the upper card plate 166 is fixed to the main frame 1. The bottom surface of the upper card plate 166 is provided with a plurality of grooves that match the convex structures of the lower card block 165. The shape of the upper card plate 166 is an arc shape, and the arc axis of the upper card plate 166 is coaxially arranged with the transmission rod shaft 9. The lower card block 165 is an arc block structure that matches the upper card plate 166, and the elastic connection between the inner rod 163 and the control rod 161 It has the tendency to push the inner rod 163 to move upward, and the lower clamping block 165 is pushed upward by the synchronous cylinder 164 to engage with the upper clamping plate 166 to fix the position of the secondary door panel 3. The grip tube 162 is pulled downward to drive the lower clamping block 165 to disengage from the upper clamping plate 166, so as to control the movement of the secondary door panel 3 relative to the main frame 1. An annular protrusion is provided on the inner ring side of the main frame 1 and behind the main door panel 2. When the main door panel 2 contacts the annular protrusion of the main frame 1, the main door panel 2 just blocks the inner side of the main frame 1.

[0039] The left and right ends of the main door panel 2 and the auxiliary door panel 3 are both semicircular, the right end arc of the main door panel 2 is concentric with the right end arc of the auxiliary door panel 3, the transmission rod shaft 9 is coaxially arranged with the right end arc of the main door panel 2, the left and right ends of the main door panel 2 are tangent to the left and right inner walls of the main frame 1, and caulking rods 19 are arranged in front of the left and right ends of the main frame 1. The arc space between the main frame 1 and the main door panel 2 is matched with the rear end of the caulking rod 19, and the two caulking rods 19 are respectively in sliding contact with the left and right inner walls of the main frame 1, and the upper surfaces of the two caulking rods 19 are fixed. A vertical shaft 21 is fixedly passed through, and the upper ends of the two vertical shafts 21 are slidably sleeved with a track frame 20, and the track frame 20 is fixed to the front of the main frame 1. A double-headed elastic telescopic rod 22 is arranged between the main frame 1 and the control rod 161, and the two ends of the double-headed elastic telescopic rod 22 are respectively fixedly sleeved on the upper ends of the two vertical shafts 21. A vertical block 24 is fixed on the upper surface of the middle part of the double-headed elastic telescopic rod 22, and a bottom groove frame 23 is slidably sleeved on the upper surface of the vertical block 24. The back of the bottom groove frame 23 is fixed to the front of the main frame 1, and the vertical block 24 is slidably sleeved with the inner wall of the bottom groove frame 23. The elastic connection between the vertical block 24 and the bottom groove frame 23 has a tendency to push the vertical block 24 and the double-headed elastic telescopic rod 22 to move forward. The interior of the track frame 20 is a transparent groove structure. The rear end of the track frame 20 is arranged in a longitudinal straight line. The front ends of the two track frames 20 are bent toward one end away from each other. The length of the inner groove of the straight end of the track frame 20 is greater than the distance between the back of the caulking rod 19 and the front of the main frame 1. The distance between the side of the two caulking rods 19 away from each other and the inner wall of one side of the adjacent main frame 1 is less than the distance between the track frame 2 0, when the control rod 161 moves forward, the vertical block 24 and the bottom groove frame 23 move forward under the elastic action, and the vertical shaft 21 gradually drives the caulking rod 19 to move to the front of the main frame 1 by moving on the straight end of the track frame 20. Then, when the double-headed elastic telescopic rod 22 continues to move away from the main frame 1, the vertical shaft 21 moves to the bent end of the track frame 20, and the double-headed elastic telescopic rod 22 pushes the vertical shaft 21 and the caulking rod 19 away from the main door panel 2 under its own elasticity, so that the caulking rod 19 no longer interferes with the opening of the main door panel 2.

[0040] A vent pipe 17 is fixedly passed through the left end of the air chamber box 11 , and the other end of the vent pipe 17 is fixedly passed through the inner wall of the cavity 6 and is fixedly communicated with the annular expansion bag 5 .

[0041] The working principle is as follows: during installation, the transmission rod shaft 9 is controlled to be coaxial with the hard tube 7, and then the double-headed threaded rod 41 is rotated to control the transmission rod shaft 9 to move away from each other and insert into the hard tube 7, so that the transmission rod shaft 9 can drive the hard tube 7 to rotate synchronously, first control the main door panel 2 to close and block the main frame 1, and then close the auxiliary door panel 3 to contact the main door panel 2, when the auxiliary door panel 3 rotates, the transmission rod shaft 9 drives the conveyor belt 18 to rotate, the gear 13 is meshed with the tooth plate 15, and the air pressure plate 121 is driven through the bending plate 14 to move the air chamber box 11 The gas inside is pushed into the annular expansion bag 5 through the vent pipe 17. The filled gas causes the annular expansion bag 5 to expand inward to fully block the gap between the main door panel 2 and the main frame 1, thereby sealing and separating the space on both sides of the main door panel 2. At the same time, when the control rod 161 approaches the main frame 1, it drives the two caulking rods 19 to respectively block the space between the main frame 1 and the main door panel 2. The caulking rods 19 assist the arc end of the main door panel 2 to stably form a seal with the annular expansion bag 5, thereby sealing and separating the space on both sides of the main door panel 2.

[0042] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clean door that can be quickly installed and removed, comprising a main frame (1) and a main door panel (2), characterized in that: The main door panel (2) is located on the inner ring side of the main frame (1), and the front side of the main door panel (2) is rotatably plugged with a secondary door panel (3). The right end of the secondary door panel (3) is a concave structure, and a double-headed telescopic bolt structure (4) that can be telescoped up and down is installed in the concave structure of the secondary door panel (3). The inner ring surface of the main frame (1) is in the shape of an annular groove. An annular expansion bag (5) is arranged inside the annular groove of the main frame (1). The outer ring surface of the annular expansion bag (5) is fixed to the inner ring surface of the annular groove of the main frame (1). Cavities (6) are opened inside the main frame (1) and on both sides of the upper line of the annular expansion bag (5). The inner walls of the two cavities (6) on one side close to each other are fixedly plugged with a hard pipe (7). The annular expansion bag (5) is slidably sleeved on the outer surface of the hard tube (7), and an end shaft (8) is rotatably inserted inside the hard tube (7), and one end of the end shaft (8) close to the main door panel (2) is slidably inserted with a transmission rod shaft (9), the main door panel (2) is slidably sleeved on the outer surface of the transmission rod shaft (9), and the auxiliary door panel (3) is slidably sleeved on the outer surface of the transmission rod shaft (9), and the end of the transmission rod shaft (9) located inside the main door panel (2) is installed with a delay structure (10), and the delay structure (10) is installed inside the main door panel (2), and the part of the transmission rod shaft (9) located outside the main door panel (2) is prismatic, and the end of the transmission rod shaft (9) located inside the concave structure of the auxiliary door panel (3) is connected to the double-head telescopic bolt structure (4); An air chamber box (11) is installed inside the cavity (6), and a pneumatic structure (12) is slidably inserted inside the air chamber box (11). One end of the pneumatic structure (12) close to the transmission rod shaft (9) slides through the inside of the air chamber box (11), and a bending plate (14) is slidably sleeved outside the air chamber box (11). One end of the pneumatic structure (12) located outside the air chamber box (11) is fixed to the bending plate (14), and a tooth plate (15) is fixed to the bottom surface of the bending plate (14). The back of the tooth plate (15) is The surface is meshed with a gear (13), which is rotatably inserted into the interior of the cavity (6). The shaft of the gear (13) and the end shaft (8) are driven by a conveyor belt (18). A positioning structure (16) is installed on the front of the auxiliary door panel (3), and the other end of the positioning structure (16) is connected to the front of the main frame (1). A ventilation pipe (17) is fixedly passed through the left end of the air cavity box (11), and the other end of the ventilation pipe (17) is fixedly passed through the inner wall of the cavity (6) and is fixedly connected to the annular expansion bag (5).

2. A clean door that can be quickly installed and removed according to claim 1, characterized in that: The delay structure (10) comprises a long cover tube (101), the long cover tube (101) is slidably sleeved on one end of the transmission rod shaft (9) located inside the main door panel (2), the long cover tube (101) is fixedly inserted inside the main door panel (2), two shifting plates (102) are fixed to one end of the transmission rod shaft (9) located inside the long cover tube (101), and baffles (103) are fixed on the inner annular surface of the long cover tube (101) and on both sides of the shifting plates (102).

3. A clean door that can be quickly installed and removed according to claim 1, characterized in that: The double-ended telescopic latch structure (4) comprises a double-ended threaded rod (41) and a control cylinder (42); the middle portion of the control cylinder (42) is fixedly sleeved on the outer surface of the double-ended threaded rod (41); the two ends of the double-ended threaded rod (41) are respectively coaxially threadedly inserted into the interior of the adjacent transmission rod shaft (9); and the control cylinder (42) is rotatably inserted into the interior of the concave structure of the auxiliary door panel (3).

4. The clean door that can be quickly installed and removed according to claim 1 is characterized in that: The pneumatic structure (12) comprises a pneumatic plate (121) and two pneumatic rods (122); the pneumatic plate (121) is slidably sleeved on the outer surface of the pneumatic rods (122); the other end of the pneumatic rods (122) slides through the interior of the air cavity box (11); the air cavity box (11) is slidably sleeved on the outer surface of the pneumatic plate (121); the pneumatic rods (122) are elastically connected to the pneumatic plate (121); and one end of the pneumatic rods (122) located outside the air cavity box (11) is fixed to the bending plate (14).

5. The clean door that can be quickly installed and removed according to claim 1 is characterized in that: The positioning structure (16) comprises a control rod (161) and a grip tube (162), the two ends of the control rod (161) are fixed to the auxiliary door plate (3), the grip tube (162) is slidably sleeved in the middle position of the control rod (161), an inner rod (163) is slidably inserted inside the control rod (161), a synchronous tube (164) is slidably sleeved on the outer surface of the control rod (161) and located above the grip tube (162), the inner annular surfaces of the synchronous tube (164) and the grip tube (162) both slide through the outer annular surface of the control rod (161), and the synchronous tube (164) and the grip tube (162) are slidably sleeved. One end (162) located on the inner side of the control rod (161) is fixedly sleeved on the outer surface of the inner rod (163), and the lower end of the inner rod (163) is elastically connected to the control rod (161). A lower clamping block (165) is fixed on the upper surface of the synchronous cylinder (164), and the upper surface of the lower clamping block (165) is a plurality of protrusion-shaped structures. An upper clamping plate (166) is slidably matched on the upper surface of the lower clamping block (165), and the upper clamping plate (166) is fixed to the main frame (1), and a plurality of grooves matching the protrusion-shaped structures of the lower clamping block (165) are provided on the bottom surface of the upper clamping plate (166).

6. A clean door capable of rapid installation and removal according to claim 5, characterized in that: The outer surface of the control rod (161) is provided with a vertical groove structure that matches the inner annular surfaces of the grip tube (162) and the synchronization tube (164), and the upper end of the control rod (161) is located above the upper surface of the main door panel (2).

7. The clean door capable of rapid installation and removal according to claim 5, characterized in that: The left and right ends of the main door panel (2) and the auxiliary door panel (3) are both semi-circular arc-shaped, the right end arc of the main door panel (2) is concentric with the right end arc of the auxiliary door panel (3), the transmission rod shaft (9) is coaxially arranged with the right end arc of the main door panel (2), the left and right ends of the main door panel (2) are tangent to the left and right inner walls of the main frame (1), and caulking rods (19) are arranged in front of the left and right ends of the main frame (1), the arc space between the main frame (1) and the main door panel (2) and the rear end of the caulking rod (19) are matched, the two caulking rods (19) are respectively in sliding contact with the left and right inner walls of the main frame (1), and the upper surfaces of the two caulking rods (19) are fixedly penetrated A vertical shaft (21) is provided, and the upper ends of the two vertical shafts (21) are both slidably sleeved with a track frame (20), the track frame (20) is fixed to the front side of the main frame (1), a double-headed elastic telescopic rod (22) is arranged between the main frame (1) and the control rod (161), the two ends of the double-headed elastic telescopic rod (22) are respectively fixedly sleeved on the upper ends of the two vertical shafts (21), a vertical block (24) is fixed on the upper surface of the middle part of the double-headed elastic telescopic rod (22), a bottom groove frame (23) is slidably sleeved on the upper surface of the vertical block (24), the back side of the bottom groove frame (23) is fixed to the front side of the main frame (1), and the vertical block (24) is elastically connected to the inner wall of the bottom groove frame (23).

8. The clean door capable of rapid installation and removal according to claim 5, characterized in that: The upper clamping plate (166) is in the shape of an arc, the arc axis of the upper clamping plate (166) is coaxially arranged with the transmission rod shaft (9), and the lower clamping block (165) is an arc-shaped block structure matched with the upper clamping plate (166).

9. The clean door capable of rapid installation and removal according to claim 7, characterized in that: The interior of the track frame (20) is a through-groove structure. The rear end of the track frame (20) is arranged in a longitudinal straight line. The front ends of the two track frames (20) are bent toward one end away from each other. The length of the inner groove of the straight end of the track frame (20) is greater than the distance between the back of the caulking rod (19) and the front of the main frame (1). The distance between the side of the two caulking rods (19) away from each other and the inner wall of one side of the adjacent main frame (1) is less than the lateral distance of the inner groove of the bent end of the track frame (20).

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