A non-contact pharyngeal swab collection device for respiratory tract infection

Abstract

The present invention relates to the technical field of medical protective equipment, and discloses a non-contact pharyngeal swab collection device for respiratory tract infections, which includes a transparent mask. A housing is arranged on the outer side of the transparent mask, a filtering mechanism is arranged on the transparent mask, a collection swab and a push block are arranged in the housing, a circular plate is arranged on the outer side of the push block, a cutting mechanism is further arranged in the housing, the cutting mechanism is distributed on both sides of the housing, and the cutting mechanism includes a slider, a connection component, a pushing component and a cutting knife. The present invention realizes the effect of automatically cutting the collection swab after the collection is completed, thus avoiding the problem that after the collection of the collection swab is completed, manual breaking of the collection swab is still required. The filtering mechanism can filter the patient's breath and the airflow generated during sneezing and coughing, and can also achieve the effect of quickly removing the collection swab from the patient's oral cavity or nasal cavity with one key.

Description

Technical Field

[0001] The present invention relates to the technical field of medical protective equipment, and particularly to a non-contact pharyngeal swab collection device for respiratory tract infections. Background Art

[0002] Pharyngeal swab collection for respiratory tract infections is a medical operation that obtains a secretion sample by swabbing the mucosal surface of the throat (oropharynx or nasopharynx), mainly used to detect pathogens (such as viruses, bacteria, etc.) causing respiratory tract infections. It mainly uses sterile cotton swabs or synthetic fiber swabs to gently swab the mucosal surface of the patient's throat (oropharynx or nasopharynx) to collect secretion samples containing pathogens.

[0003] Chinese Patent CN111166391B discloses a pharyngeal swab collection device and its collection method for reducing the risk of novel coronavirus infection. The pharyngeal swab collection device includes a mask body and two hanging straps. The mask body is a transparent structure, and there is a through-hole in the covering area of the mouth or nose. At least one pressure relief channel for lateral pressure relief is provided on both sides of the through-hole. The pressure relief channel laterally communicates the anterior cavity of the patient's mouth and nose with the outside of the mask body; the pharyngeal swab collection device also includes a swab holder, and the cover of the swab holder can completely cover the through-hole to close the through-hole; the swab holder is also provided with a card hole for the rod part of the collection swab to pass through. A tight structure is formed between the rod part of the collection swab and the inner wall of the card hole, and the collection swab can move forward and backward, rotate and swing on the card hole. When medical staff operate the pharyngeal swab collection device of the present invention, it will not cause direct infection to medical staff and reduce the risk of medical staff being infected.

[0004] The above technical solution guides and discharges the airflow of sneezing or coughing that occurs during swab collection by the patient through the setting of the pressure relief channel, thus avoiding the problem that the patient's cough or sneeze directly impacts medical staff. However, it only guides the droplets generated by sneezing or coughing and does not treat the pathogens in the cough or sneeze, resulting in the gas carrying pathogens still entering the surrounding environment, so it still has certain limitations. And since it is still manually collected by the staff through the collection swab, after collection, the user still needs to manually remove the tail of the swab, resulting in limited usability. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a non-contact pharyngeal swab collection device for respiratory tract infections, which has the advantages of being able to filter the airflow in the patient's sneezing or coughing and automatically removing the tail end of the swab after collection, etc., and solves the above problems.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a non-contact pharyngeal swab collection device for respiratory tract infections, including a transparent mask, a housing is arranged on the outer side of the transparent mask, and a filtering mechanism is arranged on the transparent mask, and the filtering mechanism is used for filtering pathogens in the sneezing and coughing gases of patients;

[0007] A collection swab and a push block are arranged in the housing, a circular plate is arranged on the outer side of the push block, the collection swab is used for sample collection, and when the push block moves, it can drive the collection swab and the circular plate to move into the transparent mask;

[0008] A cutting mechanism is further arranged in the housing, the cutting mechanism is distributed on both sides of the housing, the cutting mechanism includes a slider, a connecting component, a pushing component and a cutting knife, the pushing component is used for driving the cutting knife to move towards the center line of the housing, and when the pushing component drives the circular plate to move to the slider, the connecting component can connect the slider and the circular plate, and when the slider moves, the pushing component drives the cutting knife to cut the collection swab.

[0009] Preferably, a circular hole is opened at the center line of the transparent mask, a rubber ring is arranged inside the circular hole, and an insertion connecting pipe is threadedly connected inside the rubber ring, and the insertion connecting pipe can swing inside the rubber ring.

[0010] Preferably, the filtering mechanism includes a circular pipe, the circular pipe is fixedly connected to both sides of the transparent mask, the transparent mask is communicated with the outside air through the circular pipe, and a plurality of filter nets distributed in an array are arranged inside the circular pipe.

[0011] Preferably, one end of the housing is threadedly connected with a connecting pipe, a test tube cover is fixedly connected to the outer side of the connecting pipe, a through hole is opened inside the test tube cover, a sealing ring is threadedly arranged inside the through hole, the test tube cover is inserted into the outer end of the circular pipe, the collection swab is inserted into the inner wall of the sealing ring, the outer wall of the collection swab is in close contact with the sealing ring, and the collection swab can move back and forth and swing inside the sealing ring.

[0012] Preferably, a round block is fixedly connected to the bottom of the pushing block. A threaded hole is formed inside the round block. One end of the collection swab away from the transparent mask sequentially passes through the sealing ring and the round plate and is threadedly connected to the threaded hole. A limiting hole is slidably connected to the top surface of the pushing block. The limiting hole is formed in the top surface of the housing. A corrugated plate is fixedly connected to the inner wall of the limiting hole. One end of the corrugated plate away from the limiting hole is fixedly connected to the pushing block. A reset spring is fixedly connected to one side of the round block. One end of the reset spring away from the round block is fixedly connected to the inner wall of the housing. A connecting spring is fixedly connected to one side of the pushing block away from the reset spring. One end of the connecting spring away from the pushing block is fixedly connected to the round plate.

[0013] Preferably, an extrusion spring is fixedly connected to one side of the round plate away from the connecting spring. The extrusion springs are distributed on both sides of the round plate. One end of the extrusion spring away from the round plate is fixedly connected to a fixing ring. The fixing ring is fixedly connected to the inner side of the housing.

[0014] Preferably, the connecting component includes a limiting groove and a plugging groove. The limiting grooves are formed on the upper and lower sides of the slider. A limiting rod is fixedly connected to the inner side of the limiting groove. The limiting rods are symmetrically fixed to the inner side of the limiting groove. A sliding plate is slidably connected to the limiting rod. A limiting spring is fixedly connected to one side of the sliding plate. One end of the limiting spring away from the sliding plate is fixedly connected to the inner side of the limiting groove. A round-headed plug rod is fixedly connected to one side of the sliding plate away from the limiting spring. The plugging grooves are formed on both sides of the round plate. When the round plate moves to the position of the round-headed plug rod, the round-headed plug rod can be inserted into the plugging groove.

[0015] Preferably, the pushing component includes a fixing block and a fixing rod. The fixing block is fixedly connected to the inner side of the housing. A connecting rod is slidably connected to the inner side of the fixing block. The connecting rod passes through the fixing block and is fixedly connected to a guide rod. A tension spring is fixedly connected to one side of the fixing block away from the guide rod. One end of the tension spring away from the fixing block is fixedly connected to the slider.

[0016] Preferably, the fixing rods are fixedly connected to both sides of the housing. A pushing plate is slidably connected to the fixing rods. A conical block is fixedly connected to one side of the pushing plate. When the slider moves, it can drive the guide rod to squeeze the conical block. The cutting knife is fixedly connected to one side of the pushing plate away from the conical block. A return spring is fixedly connected to the outside of the pushing plate. The return springs are distributed on the outside of the fixing rods, and one end of the return spring away from the pushing plate is fixedly connected to the cutting knife.

[0017] Preferably, symmetrically distributed straps are further arranged on the outer side of the transparent mask for fixing the transparent mask on the patient's face.

[0018] Compared with the prior art, the present invention provides a non-contact pharyngeal swab collection device for respiratory tract infections, which has the following beneficial effects:

[0019] 1. In the present invention, when sampling, the collection swab is pushed by the push block to move into the transparent mask, so as to send the collection swab into the patient's oral cavity or nasal cavity. Then, the patient is sampled by the collection swab. When the collection swab is driven by the push block to move, the round plate is synchronously driven by the push block to move. When the round plate moves to the initial position of the slider, the connecting component connects the slider and the round plate. At this time, the slider moves in the shell following the round plate. After sampling is completed, the push block moves in the reverse direction, thereby driving the collection swab to move out of the patient's oral cavity. When the push block moves in the reverse direction, the round plate is also driven by the push block to move in the reverse direction. The movement of the round plate drives the slider to move through the connecting component, and the movement of the slider drives the pushing component to operate. The operation of the pushing component drives the cutting knife to move towards the collection swab and cut the collection swab, thus realizing the effect of automatically cutting the collection swab after collection is completed, and avoiding the problem that manual breaking of the collection swab is required after the collection of the collection swab is completed;

[0020] 2. In the present invention, during collection, the patient wears a transparent mask. When the patient shows symptoms of sneezing and coughing due to the entry of the collection swab, the air flow generated by sneezing and coughing is discharged from the transparent mask through the filtering mechanism. After the air flow enters the filtering mechanism, the filtering mechanism filters the pathogens and bacteria in the air flow, thus avoiding the problem of cross-infection, and the filtering mechanism can also filter the air inhaled by the patient, further improving the practicability;

[0021] 3. In the present invention, during collection, the collection swab is pushed into the transparent mask by the push block. During this process, the push block moves to stretch the return spring and drives the round plate to squeeze the compression spring. After the compression spring is squeezed by the round plate to the maximum extent, the push block squeezes the connecting spring again. Then, when the patient sneezes and coughs, the push block is released. At this time, the push block quickly returns to its original position under the action of the return spring, the compression spring and the connection, thus avoiding the problem that the collection swab is in the patient's nasal cavity or oral cavity when the patient coughs and sneezes, which may cause injury to the patient, and further improving the use safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention from the first perspective;

[0023] Figure 2 is a schematic diagram of the overall structure of the present invention from the second perspective;

[0024] Figure 3 is a side sectional view of the overall structure of the present invention;

[0025] Figure 4 Schematic three-dimensional view of the housing structure of the present invention;

[0026] Figure 5 Top cross-sectional view of the housing in the present invention

[0027] Figure 6 Schematic view of the filtering mechanism in the present invention;

[0028] Figure 7 First perspective view of the exploded partial structure of the present invention;

[0029] Figure 8 Second perspective view of the exploded partial structure of the present invention;

[0030] Figure 9 is Figure 8 Enlarged schematic view of the structure at A in;

[0031] Figure 10 is Figure 8 Enlarged schematic view of the structure at B in.

[0032] In the figure: 1, transparent mask; 11, round hole; 12, rubber ring; 13, insertion pipe; 2, housing; 21, connecting pipe; 22, test tube cap; 23, perforation; 24, sealing ring; 3, filtering mechanism; 31, round tube; 32, filter screen; 4, collection swab; 5, push block; 51, round block; 52, threaded hole; 53, limiting hole; 54, corrugated plate; 55, return spring; 56, connecting spring; 6, round plate; 61, extrusion spring; 62, fixing ring; 7, cutting mechanism; 71, slider; 72, connecting component; 721, limiting groove; 722, insertion slot; 723, limiting rod; 724, sliding plate; 725, limiting spring; 726, round head insertion rod; 73, pushing component; 731, fixing block; 732, fixing rod; 733, connecting rod; 734, guide rod; 735, tension spring; 736, push plate; 737, tapered block; 738, return spring; 74, cutting knife. Detailed implementation manners

[0033] 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 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.

[0034] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a non-contact pharyngeal swab collection device for respiratory tract infections.

[0035] Embodiment 1: Please refer to Figures 1 - 10, A non-contact pharyngeal swab collection device for respiratory tract infections, comprising a transparent mask 1. A housing 2 is provided on the outer side of the transparent mask 1. Symmetrically distributed straps are also provided on the outer side of the transparent mask 1, which are used to fix the transparent mask 1 on the patient's face. A filtering mechanism 3 is provided on the transparent mask 1, and the filtering mechanism 3 is used to filter pathogens in the patient's sneeze and cough gases;

[0036] A collection swab 4 and a push block 5 are provided inside the housing 2. A circular plate 6 is provided on the outer side of the push block 5. The collection swab 4 is used for sample collection. When the push block 5 moves, it can drive the collection swab 4 and the circular plate 6 to move into the transparent mask 1;

[0037] A cutting mechanism 7 is also provided inside the housing 2. The cutting mechanism 7 is distributed on both sides of the housing 2. The cutting mechanism 7 includes a slider 71, a connection component 72, a pushing component 73 and a cutting knife 74. The pushing component 73 is used to drive the cutting knife 74 to move towards the center line of the housing 2. When the pushing component 73 drives the circular plate 6 to move to the position of the slider 71, the connection component 72 can connect the slider 71 with the circular plate 6. When the slider 71 moves, the pushing component 73 drives the cutting knife 74 to cut the collection swab 4.

[0038] In the initial state, the collection swab 4 is inside the housing 2. When collection is needed, the user wears the transparent mask 1, and then the user pushes the push block 5. The movement of the push block 5 drives the collection swab 4 and the circular plate 6 to move towards the transparent mask 1. Then the collection swab 4 is pushed by the push block 5 into the transparent mask 1. Then the patient is collected by the collection swab 4. During the movement of the circular plate 6 towards the transparent mask 1, when the circular plate 6 moves to the position opposite to the slider 71, the slider 71 is connected to the circular plate 6 under the cooperation of the connection component 72. At this time, the slider 71 moves towards the transparent mask 1 together with the circular plate 6. After the collection is completed, the user pushes the push block 5 in the reverse direction. Similarly, the collection swab 4, the circular plate 6 and the slider 71 all move in the reverse direction. After the reverse movement of the slider 71, it drives the pushing component 73 to operate. The pushing component 73 operates to push the cutting knife 74 towards the cross-section direction of the collection swab 4. As the push block 5 continues to move, the pushing component 73 drives the cutting knife 74 to transversely cut the collection swab 4, so as to realize that after the collection of the patient is completed, the collection swab 4 can be automatically truncated, thus avoiding the problem of manual handling. And during the collection of the patient, once the patient sneezes or coughs, when the droplets or aerosols generated by the sneeze and cough are discharged, the filtering mechanism 3 can filter the droplets or aerosols generated by the sneeze or cough, thus avoiding the problem that some droplets and aerosols will fly out and affect the personnel on the side and rear.

[0039] Embodiment Two: Refer to Figures 1 - 10, different from the first embodiment above, a circular hole 11 is provided at the midline of the transparent mask 1. A rubber ring 12 is arranged inside the circular hole 11. An insertion pipe 13 is threadedly connected to the inside of the rubber ring 12. The insertion pipe 13 can swing inside the rubber ring 12. One end of the housing 2 is threadedly connected to a connecting pipe 21. A test tube cap 22 is fixedly connected to the outside of the connecting pipe 21. A through hole 23 is provided inside the test tube cap 22. A sealing ring 24 is threadedly arranged inside the through hole 23. The test tube cap 22 is inserted into the outer end of the circular pipe 31. The collection swab 4 is inserted into the inner wall of the sealing ring 24. The outer wall of the collection swab 4 is in close contact with the sealing ring 24. The collection swab 4 can move back and forth and swing inside the sealing ring 24. A circular block 51 is fixedly connected to the bottom of the push block 5. A threaded hole 52 is provided inside the circular block 51. The end of the collection swab 4 away from the transparent mask 1 sequentially passes through the sealing ring 24 and the circular plate 6 and is threadedly connected to the threaded hole 52 inside the circular block 51. After production is completed, the collection swab 4 and the housing 2 are assembled. After the tail end of the collection swab 4 sequentially passes through the sealing ring 24, the circular plate 6, the fixing ring 62, and the circular plate 6, the collection swab 4 is threadedly connected to the threaded hole 52 inside the circular block 51, thus completing the assembly of the collection swab 4 and the housing 2. A limiting hole 53 is slidably connected to the top surface of the push block 5. The limiting hole 53 is provided on the top surface of the housing 2. A corrugated plate 54 is fixedly connected to the inner wall of the limiting hole 53. One end of the corrugated plate 54 away from the limiting hole 53 is fixedly connected to the push block 5. A return spring 55 is fixedly connected to one side of the circular block 51. One end of the return spring 55 away from the circular block 51 is fixedly connected to the inner wall of the housing 2. A connecting spring 56 is fixedly connected to the side of the push block 5 away from the return spring 55. One end of the connecting spring 56 away from the push block 5 is fixedly connected to the circular plate 6. An extrusion spring 61 is fixedly connected to the side of the circular plate 6 away from the connecting spring 56. The extrusion springs 61 are distributed on both sides of the circular plate 6. One end of the extrusion spring 61 away from the circular plate 6 is fixedly connected to a fixing ring 62. The fixing ring 62 is fixedly connected to the inside of the housing 2;

[0040] When collection is required, the patient wears the transparent mask 1. Then, the test tube cap 22 at one end of the housing 2 is inserted into the insertion connecting tube 13. After that, the push block 5 is pushed. The push block 5 moves along the limiting hole 53 towards the transparent mask 1. The movement of the push block 5 squeezes the corrugated plate 54 and drives the round block 51 to move. The movement of the round block 51 stretches the return spring 55 and drives the collection swab 4 and the connecting spring 56 to move. The movement of the connecting spring 56 drives the round plate 6 to move. As the collection swab 4 gradually enters the transparent mask 1, the round plate 6 gradually compresses the compression spring 61. After the compression spring 61 is compressed, the push block 5 compresses the connecting spring 56 until the collection swab 4 enters the designated position. During the collection process, once the patient is about to sneeze or cough, the user releases the push block 5. At this time, the return spring 55, the connecting spring 56, and the compression spring 61 are no longer squeezed. Then, the push block 5, the collection swab 4, and the round plate 6 quickly return to their original positions under the action of the return spring 55, the connecting spring 56, and the compression spring 61. At this time, the collection swab 4 moves out of the patient's oral cavity or nasal cavity. After the collection is completed, the housing 2 is rotated to separate the housing 2 from the test tube cap 22. Then, the test tube cap 22 and the collection swab 4 are pulled out of the housing 2. After that, the test tube cap 22 is inserted into a test tube containing culture medium inside, and the collection part on the collection swab 4 is sent into the culture medium in the test tube. Thus, the problem that the collection swab 4 causes harm to the patient's oral cavity or nasal cavity when the patient sneezes or coughs is avoided, and the user does not need to contact the collection swab 4 throughout the process, thus achieving the effect of contactless operation.

[0041] It should be noted that the elastic force of the connecting spring 56 is greater than that of the compression spring 61, and a protective cap is also inserted outside the test tube cap 22 to protect the unused collection swab 4.

[0042] Embodiment 3: Refer to Figures 1 - 10, different from the second embodiment above, the connecting component 72 includes a limiting groove 721 and a plugging groove 722. The limiting groove 721 is opened on the upper and lower sides of the slider 71. A limiting rod 723 is fixedly connected to the inner side of the limiting groove 721. The limiting rods 723 are symmetrically fixed to the inner side of the limiting groove 721. A sliding plate 724 is slidably connected to the limiting rod 723. A limiting spring 725 is fixedly connected to one side of the sliding plate 724. The end of the limiting spring 725 away from the sliding plate 724 is fixedly connected to the inner side of the limiting groove 721. A round head plug rod 726 is fixedly connected to the side of the sliding plate 724 away from the limiting spring 725. The round head plug rod 726 passes through the limiting groove 721 and is fixedly connected to the sliding plate 724. The plugging groove 722 is opened on both sides of the round plate 6. When the round plate 6 moves to the position of the round head plug rod 726, the round head plug rod 726 can be inserted into the plugging groove 722. The pushing component 73 includes a fixed block 731 and a fixed rod 732. The fixed block 731 is fixedly connected to the inner side of the housing 2. A connecting rod 733 is slidably connected to the inner side of the fixed block 731. The connecting rod 733 passes through the fixed block 731 and is fixedly connected to a guide rod 734. A tension spring 735 is fixedly connected to the side of the fixed block 731 away from the guide rod 734. The end of the tension spring 735 away from the fixed block 731 is fixedly connected to the slider 71. The fixed rod 732 is fixedly connected to both sides of the housing 2. A push plate 736 is slidably connected to the fixed rod 732. A tapered block 737 is fixedly connected to one side of the push plate 736. When the slider 71 moves, it can drive the guide rod 734 to squeeze the tapered block 737. The cutting knife 74 is fixedly connected to the side of the push plate 736 away from the tapered block 737. A return spring 738 is fixedly connected to the outside of the push plate 736. The return springs 738 are distributed on the outside of the fixed rod 732, and the end of the return spring 738 away from the push plate 736 is fixedly connected to the cutting knife 74;

[0043] When the pushing block 5 drives the circular plate 6 to move to the position of the slider 71, the two end parts of the circular plate 6 first squeeze the round head plug rod 726. At this time, after being squeezed, the round head plug rod 726 drives the sliding plate 724 to move. The sliding plate 724 moves along the limiting rod 723 into the limiting groove 721 and squeezes the limiting spring 725. Then, the round head plug rod 726 is squeezed by the end part of the circular plate 6 into the limiting groove 721. After that, as the circular plate 6 moves, the plugging groove 722 on the circular plate 6 gradually approaches the round head plug rod 726. After the plugging groove 722 and the round head plug rod 726 are completely on the same horizontal line, the round head plug rod 726 is inserted into the plugging groove 722 under the action of the limiting spring 725. At this time, the slider 71 and the circular plate 6 are connected. Then, the slider 71 moves with the circular plate 6 and pulls the tension spring 735. After the collection is completed, as the user pushes the pushing block 5 in the reverse direction, the pushing block 5 gradually returns to its original position. During this process, the circular plate 6 drives the slider 71 to move towards the cutting knife 74. The movement of the slider 71 drives the connecting rod 733 to move. The movement of the connecting rod 733 drives the guide rod 734 to move towards the conical block 737. The movement of the guide rod 734 squeezes the conical block 737 and forces the push plate 736 to move along the fixed rod 732 towards the midline of the housing 2. The movement of the push plate 736 drives the cutting knife 74 to move and squeezes the return spring 738. The movement of the cutting knife 74 laterally cuts the collection swab 4, thus facilitating the subsequent placement of the collection swab 4 into the test tube.

[0044] Embodiment 4: Refer to Figures 1 - 10 , which is different from the above Embodiment 3. The filtering mechanism 3 includes a circular tube 31. The circular tube 31 is fixedly connected to both sides of the transparent mask 1. The transparent mask 1 is communicated with the outside air through the circular tube 31. A plurality of filter meshes 32 (using HEPA filter meshes) are arranged in an array on the inner side of the circular tube 31; after the user wears the transparent mask 1, the breathing all passes through the filter meshes 32 in the circular tube 31. After the patient sneezes and coughs, the circular tube 31 guides the airflow, so as to guide the airflow to the lower part of the transparent mask 1. And the filter meshes 32 in the circular tube 31 block the droplets, aerosols and pathogens generated by sneezing and coughing, and prevent them from harming the people around the patient.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-contact pharyngeal swab collection device for respiratory tract infection, comprising a transparent mask, wherein a housing is arranged on the outer side of the transparent mask, and the characteristics are as follows: A filtering mechanism is provided on the transparent mask, and the filtering mechanism is used to filter pathogens in the sneezing and coughing gases of patients; A collection swab and a push block are arranged inside the shell. A circular plate is arranged on the outer side of the push block. The collection swab is used for sample collection. When the push block moves, it can drive the collection swab and the circular plate to move into the transparent mask; A cutting mechanism is further arranged inside the shell. The cutting mechanisms are distributed on both sides of the shell. The cutting mechanism includes a slider, a connection component, a pushing component and a cutting knife. The pushing component is used to drive the cutting knife to move towards the center line of the shell. When the pushing component drives the circular plate to move to the slider, the connection component can connect the slider and the circular plate. When the slider moves, the pushing component drives the cutting knife to cut the collection swab; The pushing component includes a fixed block and a fixed rod. The fixed block is fixedly connected to the inner side of the shell. A connecting rod is slidably connected to the inner side of the fixed block. The connecting rod passes through the fixed block and is fixedly connected to a guide rod. A tension spring is fixedly connected to the side of the fixed block away from the guide rod. The end of the tension spring away from the fixed block is fixedly connected to the slider. The fixed rod is fixedly connected to both sides of the shell. A push plate is slidably connected to the fixed rod. A conical block is fixedly connected to one side of the push plate. When the slider moves, it can drive the guide rod to squeeze the conical block. The cutting knife is fixedly connected to the side of the push plate away from the conical block. A return spring is fixedly connected to the outer side of the push plate. The return springs are distributed on the outer side of the fixed rod, and the end of the return spring away from the push plate is fixedly connected to the cutting knife; The connection component includes a limit groove and a plug-in groove. The limit grooves are opened on the upper and lower sides of the slider. A limit rod is fixedly connected to the inner side of the limit groove. The limit rods are symmetrically fixed to the inner side of the limit groove. A slide plate is slidably connected to the limit rod. A limit spring is fixedly connected to one side of the slide plate. The end of the limit spring away from the slide plate is fixedly connected to the inner side of the limit groove. A round head plug rod is fixedly connected to the side of the slide plate away from the limit spring. The round head plug rod passes through the limit groove and is fixedly connected to the slide plate. The plug-in grooves are opened on both sides of the circular plate. When the circular plate moves to the round head plug rod, the round head plug rod can be inserted into the plug-in groove; 2. The non-contact respiratory tract infection throat swab collection device according to claim 1, wherein: A circular hole is opened at the center line of the transparent mask. A rubber ring is arranged inside the circular hole. A plug-in pipe is threadedly connected to the inside of the rubber ring. The plug-in pipe can swing inside the rubber ring.

3. The non-contact respiratory tract infection throat swab collection device according to claim 1, characterized in that: The filtering mechanism includes a circular pipe. The circular pipe is fixedly connected to both sides of the transparent mask. The transparent mask is communicated with the outside air through the circular pipe. A plurality of filter nets are arranged in an array inside the circular pipe.

4. The non-contact pharyngeal swab collection device for respiratory tract infection according to claim 3, wherein: One end of the housing is threadedly connected with a connecting pipe, and a test tube cover is fixedly connected to the outside of the connecting pipe. A perforation is provided inside the test tube cover, and a sealing ring is threadedly arranged inside the perforation. The test tube cover is inserted into the outer end of the round pipe, and the collection swab is inserted into the inner wall of the sealing ring. The outer wall of the collection swab is in close contact with the sealing ring, and the collection swab can move back and forth and swing inside the sealing ring.

5. The non-contact respiratory tract infection throat swab collection device according to claim 4, wherein: A round block is fixedly connected to the bottom of the push block, and a threaded hole is provided inside the round block. The end of the collection swab away from the transparent mask sequentially passes through the sealing ring and the round plate and is threadedly connected to the threaded hole. A limiting hole is slidably connected to the top surface of the push block, and the limiting hole is provided on the top surface of the housing. A corrugated plate is fixedly connected to the inner wall of the limiting hole, and one end of the corrugated plate away from the limiting hole is fixedly connected to the push block. A return spring is fixedly connected to one side of the round block, and one end of the return spring away from the round block is fixedly connected to the inner wall of the housing. A connecting spring is fixedly connected to the side of the push block away from the return spring, and one end of the connecting spring away from the push block is fixedly connected to the round plate.

6. The non-contact respiratory tract infection throat swab collection device according to claim 5, characterized in that: An extrusion spring is fixedly connected to the side of the round plate away from the connecting spring, and the extrusion springs are distributed on both sides of the round plate. One end of the extrusion spring away from the round plate is fixedly connected to a fixing ring, and the fixing ring is fixedly connected to the inside of the housing.

7. The non-contact pharyngeal swab collection device for respiratory tract infection according to claim 1, characterized in that: Symmetrically distributed straps are further provided on the outside of the transparent mask for fixing the transparent mask on the patient's face.

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