A modular prefabricated sealed safety isolation passage for epidemic prevention and control detection

Abstract

The present invention belongs to the technical field of epidemic prevention and control, and discloses a modular prefabricated sealed safety isolation passage for epidemic prevention and control detection, including a control device, the control device is fixedly installed inside a fixed outer frame, a support assembly is fixedly installed at the bottom of one side of the fixed outer frame, and a first connection layer and a second connection layer are fixedly installed in sequence from outside to inside at the upper end of the same side of the fixed outer frame and the support assembly. Through structures such as the fixed outer frame, the support assembly and the third connection layer provided in the present invention, before transportation, the overall module can be compressed, by reducing the distance between the limit frame and the fixed outer frame, the first connection layer, the second connection layer and the third connection layer are compressed, thereby reducing the overall volume of the module, and further enabling more overall modules to be transported during transportation, reducing the transportation cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of epidemic prevention and control, and specifically relates to a modular prefabricated sealed and safe isolation passage for epidemic prevention and control detection. Background Art

[0002] Epidemic prevention and control is a very important prevention and control measure during the current period of severe epidemic situation. It can screen close contacts and secondary close contacts of the epidemic in places with a large flow of people. When nucleic acid testing is carried out at outdoor testing sites, in order to prevent the possible spread of the virus by the tested personnel, the tested personnel are isolated through an isolation passage. In order to reduce the construction time, the isolation passage usually adopts a modular assembly method, which greatly saves the construction time. In the prior art, after the modular prefabricated isolation passage is pre-produced, it is assembled at the designated testing site. When the required passage length is relatively long, a transportation method of one vehicle for multiple times or multiple vehicles at one time is adopted. The transportation method of one vehicle for multiple times reduces the assembly efficiency, while the transportation method of multiple vehicles at one time increases the cost. Therefore, in view of the above problems, a modular prefabricated sealed and safe isolation passage for epidemic prevention and control detection with low transportation cost, good splicing effect and convenient splicing is proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide a modular prefabricated sealed and safe isolation passage for epidemic prevention and control detection. By setting structures such as a fixed outer frame, a support assembly and a third connection layer, by reducing the distance between the limit frame and the fixed outer frame, the first connection layer, the second connection layer and the third connection layer are compressed, thereby reducing the overall volume of the module. Furthermore, more module wholes can be transported during transportation, reducing the transportation cost, and solving the problems raised in the above background art.

[0004] In order to achieve the above purpose, the present invention provides the following technical solution: A modular prefabricated sealed and safe isolation passage for epidemic prevention and control detection, including a control device, the control device is fixedly installed inside the fixed outer frame, a support assembly is fixedly installed at the bottom of one side of the fixed outer frame, a first connection layer and a second connection layer are fixedly installed on the upper end of the same side of the fixed outer frame and the support assembly in sequence from outside to inside, third connection layers are fixedly installed at the bottoms of the first connection layer and the second connection layer, a limit frame is fixedly installed on the side of the first connection layer away from the fixed outer frame, fixing components are fixedly installed at the upper and lower ends of the side of the limit frame away from the first connection layer, a blower is fixedly installed on the top of the fixed outer frame, an air duct is fixedly installed on one side of the blower, a flattening assembly is arranged at the upper end of the middle parts of the first connection layer and the second connection layer, and an air injection plate is fixedly installed at the bottom of the side of the air duct away from the blower.

[0005] Preferably, the fixed outer frame includes an outer frame. A connection cavity is formed on one side of the middle part of the outer frame. Fixing grooves are formed at the upper and lower ends of the middle part of the outer frame away from the connection cavity. A rubber pad is fixedly installed on one side of the outer frame. A first connection layer and a second connection layer are fixedly connected to one side of the outer frame.

[0006] Preferably, the support assembly includes a first movable plate. A second movable plate is movably sleeved on one side of the first movable plate. A third movable plate is movably sleeved on one side of the second movable plate. A first movable wheel is fixedly installed at the bottom of the first movable plate. A second movable wheel is fixedly installed at the bottom of the second movable plate. A third movable wheel is fixedly installed at the bottom of the third movable plate. One side of the first movable plate away from the second movable plate is fixedly connected to the fixed outer frame. A limiting frame is fixedly installed on one side of the third movable plate away from the second movable plate.

[0007] Preferably, both the first connection layer and the second connection layer are made of PVC. A gap is left in the middle of the first connection layer and the second connection layer to form a cavity.

[0008] Preferably, the fixing assembly includes a fixing block. A connecting pipe is fixedly installed at the bottom of the fixing block. A corrugated pipe is fixedly communicated with the top of the connecting pipe. A clamping block is fixedly connected to the top of the corrugated pipe. The clamping block is movably sleeved on the upper end of the fixing block.

[0009] Preferably, the air duct includes a first pipe. A second pipe is fixedly communicated with the lower end of the middle part of the first pipe. Solenoid valves are fixedly installed in the middle of one side of the first pipe and the middle of the second pipe. One side of the first pipe is fixedly connected to a fan.

[0010] Preferably, the vertical cross-sectional shape of the clamping block is trapezoidal, with the hypotenuse of the clamping block at the upper end. One end of the connecting pipe is fixedly communicated with the corrugated pipe and the other end penetrates through the limiting frame to be communicated with the inner cavity formed by the first connection layer and the second connection layer. The other end of the inner cavity formed by the first connection layer and the second connection layer is communicated with the connection cavity.

[0011] Preferably, the bottom of the second pipe is communicated with the connection cavity. The bottom of the first pipe is communicated with an air injection plate. Circular holes are evenly distributed at the bottom of the air injection plate.

[0012] Preferably, the flattening assembly includes a first connecting rod. A second connecting rod is movably sleeved in the middle of the first connecting rod. A spherical block is movably sleeved on the surface of the first connecting rod. A flattening plate is movably sleeved on the surface of the spherical block. One side of the first connecting rod away from the second connecting rod is fixedly connected to the fixed outer frame.

[0013] Preferably, the flattening plate is composed of a plurality of mutually articulated rectangular plates. Ball blocks are movably sleeved at both ends of each rectangular plate. One side of the flattening plate is fixedly connected to the fixed outer frame, and the other side is fixedly connected to the limiting frame.

[0014] The beneficial effects of the present invention are as follows:

[0015] Through structures such as the fixed outer frame, the support assembly, and the third connection layer provided in the present invention, before transportation, the overall module can be compressed. By reducing the distance between the limiting frame and the fixed outer frame, the first connection layer, the second connection layer, and the third connection layer are compressed, thereby reducing the overall volume of the module. Furthermore, more overall modules can be transported during transportation, reducing the transportation cost.

[0016] Through the cooperation of structures such as the limiting frame, the fixing assembly, and the fan provided in the present invention, during assembly, by placing the fixing assembly in the first overall module into the fixing slot in the second overall module to be spliced, after alignment, start the fan to inject gas into the second pipeline. After the gas enters the middle parts of the first connection layer and the second connection layer, the first connection layer and the second connection layer are unfolded and extended. When the first connection layer and the second connection layer are completely unfolded, the gas enters the corrugated pipe through the connecting pipe to make the corrugated pipe unfold and drive the block to move upward, squeezing the top of the air duct. Furthermore, the limiting frame in the first overall module contacts the fixed outer frame in the second overall module more closely. At this time, the rubber pad is compressed by the two to ensure the connection effect.

[0017] Through the cooperation of structures such as the limiting frame, the fixing assembly, and the fan provided in the present invention, during assembly, by placing the fixing assembly in the first overall module into the fixing slot in the second overall module to be spliced, after alignment, start the fan to inject gas into the second pipeline. When the first connection layer and the second connection layer are completely unfolded, the gas enters the corrugated pipe through the connecting pipe to make the corrugated pipe unfold and drive the block to move upward, squeezing the top of the air duct. Furthermore, the limiting frame in the first overall module contacts the fixed outer frame in the second overall module more closely, ensuring the connection effect. During the connection process, only after aligning the two overall modules, injecting gas by starting the fan can achieve the fixing effect, which is more convenient to use. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall appearance of the present invention;

[0019] Figure 2 is a schematic diagram of the structure at the fixing assembly of the present invention;

[0020] Figure 3 is a separated view of the overall structure of the present invention;

[0021] Figure 4Schematic diagram of the positional relationship at the flattening component of the present invention;

[0022] Figure 5 Sub - divided structure diagram of the air duct of the present invention;

[0023] Figure 6 Sub - divided structure diagram of the flattening component of the present invention;

[0024] Figure 7 Cross - sectional view of the structure at the fixed outer frame of the present invention;

[0025] Figure 8 For the present invention Figure 7 Enlarged schematic diagram at position A in;

[0026] Figure 9 Sub - divided structure diagram of the fixing component of the present invention;

[0027] Figure 10 Sub - divided structure diagram of the support component of the present invention.

[0028] In the figure: 1. Fixed outer frame; 101. Outer frame; 102. Rubber pad; 103. Connection cavity; 104. Fixed groove; 2. Control device; 3. Support component; 31. First movable plate; 32. Second movable plate; 33. Third movable plate; 34. First movable wheel; 35. Second movable wheel; 36. Third movable wheel; 4. Limit frame; 5. First connection layer; 6. Second connection layer; 7. Third connection layer; 8. Fixing component; 81. Fixed block; 82. Connecting pipe; 83. Clamping block; 84. Bellows; 9. Fan; 10. Air duct; 1001. First pipe; 1002. Second pipe; 11. Flattening component; 1101. First connecting rod; 1102. Second connecting rod; 1103. Ball block; 1104. Flattening plate; 12. Air - injection plate. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Such as Figures 1 to 10As shown in the figure, an embodiment of the present invention provides a modular prefabricated sealed safety isolation passage for epidemic prevention and control detection, including a control device 2 fixedly installed inside a fixed outer frame 1. At the bottom of one side of the fixed outer frame 1, a support component 3 is fixedly installed. At the upper end of the same side of the fixed outer frame 1 and the support component 3, a first connection layer 5 and a second connection layer 6 are fixedly installed in sequence from outside to inside. At the bottom of both the first connection layer 5 and the second connection layer 6, a third connection layer 7 is fixedly installed. On the side of the first connection layer 5 away from the fixed outer frame 1, a limit frame 4 is fixedly installed. At the upper and lower ends of the side of the limit frame 4 away from the first connection layer 5, a fixing component 8 is fixedly installed. At the top of the fixed outer frame 1, a fan 9 is fixedly installed. On one side of the fan 9, an air duct 10 is fixedly installed. At the upper end of the middle parts of the first connection layer 5 and the second connection layer 6, a flattening component 11 is provided. At the bottom of the side of the air duct 10 away from the fan 9, an air injection plate 12 is fixedly installed; through the cooperation of the first connection layer 5, the second connection layer 6 and the third connection layer 7, the overall length can be freely adjusted, so as to facilitate transportation when compressed and reduce transportation costs. Through the cooperation of the fixing component 8 and the fixed outer frame 1, as long as the two are aligned and the fan 9 is used for air injection, the fixing component 8 can be clamped with the fixed outer frame 1 to achieve the fixing effect, and the splicing is more convenient and labor-saving. And this solution adopts the method of manually spraying chlorine dioxide for disinfection to realize the recycling of the device. The detected personnel walk along the inside of the passage, being isolated from the outside all around, and the one-way walking is convenient for detection. The disinfection is carried out with 500mg / L chlorine dioxide for treatment.

[0031] As Figure 8 shown, in one embodiment: the fixed outer frame 1 includes an outer frame 101. A connection cavity 103 is opened on one side in the middle of the outer frame 101. Fixing grooves 104 are opened at the upper and lower ends of the side of the outer frame 101 away from the connection cavity 103. A rubber pad 102 is fixedly installed on one side of the outer frame 101. The first connection layer 5 and the second connection layer 6 are fixedly connected to one side of the outer frame 101; the sealing effect between modules is improved through the rubber pad 102. The connection cavity 103 is provided to facilitate the entry of gas into the middle parts of the first connection layer 5 and the second connection layer 6, facilitating the air injection into the first connection layer 5 and the second connection layer 6 to make them unfold. The provided fixing grooves 104 can cooperate with the fixing component 8 to complete the splicing and clamping between modules.

[0032] As Figure 10As shown, in one embodiment: The support assembly 3 includes a first movable plate 31. A second movable plate 32 is movably sleeved on one side of the first movable plate 31. A third movable plate 33 is movably sleeved on one side of the second movable plate 32. A first movable wheel 34 is fixedly installed at the bottom of the first movable plate 31. A second movable wheel 35 is fixedly installed at the bottom of the second movable plate 32. A third movable wheel 36 is fixedly installed at the bottom of the third movable plate 33. One side of the first movable plate 31 away from the second movable plate 32 is fixedly connected to the fixed outer frame 1. A limiting frame 4 is fixedly installed on one side of the third movable plate 33 away from the second movable plate 32. By the cooperation of the first movable plate 31, the second movable plate 32 and the third movable plate 33, the overall length of the support assembly 3 can be changed. At the same time, the first movable plate 31, the second movable plate 32 and the third movable plate 33 are sleeved with each other to keep stable and not easily separated. And the first movable wheel 34, the second movable wheel 35 and the third movable wheel 36 provided at the bottom can reduce the friction with the bottom surface when the first movable plate 31, the second movable plate 32 and the third movable plate 33 extend, which is convenient for stretching. At the same time, they can also be locked under the control of the control device 2, which is convenient for the stable use of the module.

[0033] As Figure 3 As shown, in one embodiment: Both the first connection layer 5 and the second connection layer 6 are made of PVC. There is a gap in the middle of the first connection layer 5 and the second connection layer 6 to form a cavity. The first connection layer 5 and the second connection layer 6 provided have certain flexibility, so as to facilitate unfolding and winding. And the cavity formed between the first connection layer 5 and the second connection layer 6 can make the first connection layer 5 and the second connection layer 6 unfold through gas when injecting gas, and make the first connection layer 5 and the second connection layer 6 wind up when exhausting gas.

[0034] As Figure 9 As shown, in one embodiment: The fixing assembly 8 includes a fixing block 81. A connecting pipe 82 is fixedly installed at the bottom of the fixing block 81. A corrugated pipe 84 is fixedly communicated with the top of the connecting pipe 82. A clamping block 83 is fixedly connected to the top of the corrugated pipe 84. The clamping block 83 is movably sleeved on the upper end of the fixing block 81. The vertical cross-sectional shape of the clamping block 83 is trapezoidal, and the hypotenuse of the clamping block 83 is located at the upper end. One end of the connecting pipe 82 is fixedly communicated with the corrugated pipe 84 and the other end penetrates through the limiting frame 4 to communicate with the inner cavity formed by the first connection layer 5 and the second connection layer 6. The other end of the inner cavity formed by the first connection layer 5 and the second connection layer 6 is communicated with the connection cavity 103. The corrugated pipe 84 provided stretches when injecting gas, so as to drive the clamping block 83 to move upward and squeeze the top surface of the fixing groove 104. The connection between multiple modules is ensured by the cooperation of the inclined surface at the top of the clamping block 83 and the pressure generated by injecting gas.

[0035] As Figure 5As shown, in one embodiment: The air duct 10 includes a first duct 1001. A second duct 1002 is fixedly connected and communicated to the lower end of the middle part of the first duct 1001. Solenoid valves are fixedly installed in the middle of one side of the first duct 1001 and the middle of the second duct 1002. One side of the first duct 1001 is fixedly connected to a fan 9. The bottom of the second duct 1002 is communicated with a connection cavity 103. The bottom of the first duct 1001 is communicated with an air injection plate 12. Circular holes are equidistantly distributed at the bottom of the air injection plate 12. By means of the cooperation of the first duct 1001 and the second duct 1002, which are respectively connected to different places, during air injection, it can be controlled through the solenoid valve to control the gas flow direction, making the structure more stable and the use effect better. Through the air injection plate 12 provided, air circulation can be carried out inside the module, thereby ensuring the suitability of the temperature inside the channel. At the same time, when the device is not in use, the air between the first connection layer 5 and the second connection layer 6 can be discharged through the fan 9 to achieve the purpose of automatic contraction, which is convenient for transportation.

[0036] As Figure 6 shown, in one embodiment: The flattening assembly 11 includes a first connecting rod 1101. A second connecting rod 1102 is movably sleeved on the middle part of the first connecting rod 1101. A spherical block 1103 is movably sleeved on the surface of the first connecting rod 1101. A flattening plate 1104 is movably sleeved on the surface of the spherical block 1103. One side of the first connecting rod 1101 away from the second connecting rod 1102 is fixedly connected to a fixed outer frame 1. The flattening plate 1104 is composed of a combination of multiple mutually hinged rectangular plates. Spherical blocks 1103 are movably sleeved at both ends of each rectangular plate. One side of the flattening plate 1104 is fixedly connected to the fixed outer frame 1, and the other side is fixedly connected to a limiting frame 4. By means of the decrease in the overall length of the first connecting rod 1101 and the second connecting rod 1102 when the flattening plate 1104 is set, the length of the flattening plate 1104 is reduced and the height is increased, which exerts a certain degree of extrusion and limitation on the first connection layer 5 and the second connection layer 6, facilitating the storage of the first connection layer 5 and the second connection layer 6. At the same time, when the flattening plate 1104, the first connecting rod 1101, and the second connecting rod 1102 are unfolded, they can support the first connection layer 5 to ensure the overall stability.

[0037] Working principle and usage process:

[0038] During transportation, first, the distance between the limiting frame 4 and the fixed outer frame 1 is reduced to reduce the overall volume of the module, so that multiple modules can be transported in one shipment;

[0039] When used in splicing, first place the fixing component 8 in the first module as a whole into the fixing groove 104 in the second module as a whole to be spliced. After alignment, start the blower 9 through the control device 2 to inject gas into the second pipeline 1002. At the same time, close the solenoid valve on one side of the first pipeline 1001 in the air duct 10 and open the solenoid valve on the second pipeline 1002. After the gas enters the middle of the first connection layer 5 and the second connection layer 6, the first connection layer 5 and the second connection layer 6 are unfolded and extended. Synchronously, the overall lengths of the first connecting rod 1101 and the second connecting rod 1102 in the flattening component 11 increase, the height of the flattening plate 1104 decreases, and the length increases. Synchronously, the first movable plate 31, the second movable plate 32, and the third movable plate 33 in the support component 3 are separated from each other, extending the overall length of the support component 3. When the first connection layer 5 and the second connection layer 6 are completely unfolded, the gas enters the corrugated pipe 84 through the connecting pipe 82 to expand the corrugated pipe 84 and drive the clamping block 83 to move upward, squeezing the top of the air duct 10, so that the limiting frame 4 in the first module as a whole is in closer contact with the fixed outer frame 1 in the second module as a whole, and the two squeeze the rubber pad 102 in the fixed outer frame 1. After the splicing is completed, control the solenoid valve on the second pipeline 1002 to close through the control device 2, and open the solenoid valve on one side of the first pipeline 1001. At this time, the blower 9 injects gas into the air injection plate 12 through the first pipeline 1001, and the gas discharged from the bottom of the air injection plate 12 circulates the gas inside the module.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular prefabricated sealed safety isolation passage for epidemic prevention and control detection, including a control device (2), characterized in that: The control device (2) is fixedly installed inside the fixed outer frame (1). At the bottom of one side of the fixed outer frame (1), a support component (3) is fixedly installed. At the upper end of the same side of the fixed outer frame (1) and the support component (3), a first connection layer (5) and a second connection layer (6) are fixedly installed in sequence from outside to inside. At the bottom of both the first connection layer (5) and the second connection layer (6), a third connection layer (7) is fixedly installed. On the side of the first connection layer (5) away from the fixed outer frame (1), a limit frame (4) is fixedly installed. At the upper and lower ends of the side of the limit frame (4) away from the first connection layer (5), fixing components (8) are fixedly installed. At the top of the fixed outer frame (1), a fan (9) is fixedly installed. On one side of the fan (9), an air duct (10) is fixedly installed. At the upper end of the middle parts of the first connection layer (5) and the second connection layer (6), a flattening component (11) is arranged. At the bottom of the side of the air duct (10) away from the fan (9), an air injection plate (12) is fixedly installed; The flattening component (11) includes a first connecting rod (1101). The middle part of the first connecting rod (1101) is movably sleeved with a second connecting rod (1102). The surface of the first connecting rod (1101) is movably sleeved with a spherical block (1103). The surface of the spherical block (1103) is movably sleeved with a flattening plate (1104). The side of the first connecting rod (1101) away from the second connecting rod (1102) is fixedly connected to the fixed outer frame (1). When the flattening plate (1104), the first connecting rod (1101), and the second connecting rod (1102) are unfolded, they can support the first connection layer (5); The flattening plate (1104) is composed of a combination of multiple mutually hinged rectangular plates. At both ends of each rectangular plate, a spherical block (1103) is movably sleeved. One side of the flattening plate (1104) is fixedly connected to the fixed outer frame (1), and the other side is fixedly connected to the limit frame (4); The fixed outer frame (1) includes an outer frame (101). A connection cavity (103) is opened on one side of the middle part of the outer frame (101). At the upper and lower ends of the side of the middle part of the outer frame (101) away from the connection cavity (103), fixing grooves (104) are opened. A rubber pad (102) is fixedly installed on one side of the outer frame (101). One side of the outer frame (101) is fixedly connected to the first connection layer (5) and the second connection layer (6). The fixing grooves (104) cooperate with the fixing components (8) to complete the splicing and clamping between modules; The first connection layer (5) and the second connection layer (6) are both made of PVC. There is a gap in the middle of the first connection layer (5) and the second connection layer (6) to form a cavity. Gas enters the middle parts of the first connection layer (5) and the second connection layer (6) through the connection cavity (103), and injects gas into the first connection layer (5) and the second connection layer (6) to make them expand and extend. Synchronously, the overall lengths of the first connecting rod (1101) and the second connecting rod (1102) in the flattening assembly (11) increase, and the height of the flattening plate (1104) decreases and the length increases; The air duct (10) includes a first pipe (1001). A second pipe (1002) is fixedly connected and communicated with the lower end of the middle part of the first pipe (1001). Solenoid valves are fixedly installed in the middle of one side of the first pipe (1001) and the middle of the second pipe (1002). One side of the first pipe (1001) is fixedly connected to the fan (9); The bottom of the second pipe (1002) is communicated with the connection cavity (103). The bottom of the first pipe (1001) is communicated with the air injection plate (12). Circular holes are equidistantly distributed at the bottom of the air injection plate (12).

2. The modular prefabricated sealed safety isolation passage for epidemic prevention and control detection according to claim 1, characterized in that: The support assembly (3) includes a first movable plate (31). A second movable plate (32) is movably sleeved on one side of the first movable plate (31). A third movable plate (33) is movably sleeved on one side of the second movable plate (32). A first movable wheel (34) is fixedly installed at the bottom of the first movable plate (31). A second movable wheel (35) is fixedly installed at the bottom of the second movable plate (32). A third movable wheel (36) is fixedly installed at the bottom of the third movable plate (33). One side of the first movable plate (31) away from the second movable plate (32) is fixedly connected to the fixed outer frame (1). A limit frame (4) is fixedly installed on one side of the third movable plate (33) away from the second movable plate (32).

3. A sealed safety isolation passage for epidemic prevention and control detection using modular assembly according to claim 1, characterized in that: The fixing assembly (8) includes a fixing block (81). A connecting pipe (82) is fixedly installed at the bottom of the fixing block (81). A corrugated pipe (84) is fixedly connected and communicated with the top of the connecting pipe (82). A clamping block (83) is fixedly connected to the top of the corrugated pipe (84). The clamping block (83) is movably sleeved on the upper end of the fixing block (81).

4. A modular prefabricated sealed safety isolation passage for epidemic prevention and control detection according to claim 3, characterized in that: The vertical cross-sectional shape of the clamping block (83) is trapezoidal, and the hypotenuse of the clamping block (83) is located at the upper end. One end of the connecting pipe (82) is fixedly connected and communicated with the corrugated pipe (84), and the other end penetrates through the limit frame (4) to communicate with the inner cavity formed by the first connection layer (5) and the second connection layer (6). The other end of the inner cavity formed by the first connection layer (5) and the second connection layer (6) is communicated with the connection cavity (103).

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