A swab collection device for respiratory virus detection

Abstract

The present invention belongs to the field of swab collecting devices, and specifically is a swab collecting device for respiratory virus detection, comprising a bottom shell, the top end of the bottom shell is in contact with a fixed shell, the top end of the fixed shell is fixedly connected with a top cover, the top end of the top cover is provided with a sampling groove, the inner wall of the top cover is rotatably connected with a rotating column, the bottom end of the rotating column is rotatably connected with a central axis, the outer side of the central axis is fixedly connected with an internal collecting ring, the outer side of the internal collecting ring is sleeved with an external collecting ring, and the bottom ends of the internal collecting ring and the external collecting ring are both provided with ejection mechanisms; through the structural design of the ejection mechanism, the function of only leaking out one group of sampling tubes at each sampling is achieved, and the remaining sampling tubes will continue to be stored in the bottom shell and the fixed shell, thereby providing protection for the sampling tubes, even if they fall or overturn, the sampling tubes inside the bottom shell will not fall to the outside, so that the sampling tubes are safer during the placement process.

Description

Technical Field

[0001] The invention relates to the field of swab collecting devices, in particular to a swab collecting device for respiratory virus detection. Background Art

[0002] For respiratory virus testing, medical staff will use a swab to brush the cells on the back wall of the mouth, then place the sampled swab into a sampling tube, and finally place the sampling tubes in a collection box for easy transportation.

[0003] A swab collection device for respiratory virus detection proposed in patent document CN202323367200.4 specifically relates to the field of medical device technology, including: a first collection box, a second collection box is installed on the first collection box, and the first collection box and the second collection box are spliced ​​to form a collection box, the first collection box and the second collection box are both provided with multiple collection slots, and collection tubes are placed in the multiple collection slots; two stabilizing components are used to stably store the collection tubes along the collection slots; the utility model can achieve stable removal of the collection tubes along the collection slots through the setting of the stabilizing components, thereby reducing the shaking of the solution in the collection tube, solving the problem that the solution shakes and adsorbs on the tube wall when the existing collection tube is pushed out along the collection slot, causing the medical staff to get their hands contaminated with the solution when opening the collection tube, greatly enhancing the safety of medical staff and improving the practicality of the collection device.

[0004] However, when the swab collection device in the above technology collects the sampling tubes uniformly, since the top part of the first collection box does not have a shielding structure, the top part of the sampling tubes is directly exposed to the outside world and lacks protection. If an error occurs during the sampling process, causing the collection box to fall to the ground or overturn, the sampling tubes inside the collection box may be scattered all over the ground, causing more trouble. Therefore, in view of the above problem, a swab collection device for respiratory virus detection is proposed. Summary of the invention

[0005] In order to solve the problem of the swab collection device in the above technology, when the sampling tubes are collected uniformly, since the top part of the first collection box has no shielding structure, the top part of the sampling tube is directly exposed to the outside world and lacks protection. If an error occurs during the sampling process, causing the collection box to fall to the ground or overturn, the sampling tubes inside the collection box may be scattered all over the ground, thereby causing more troubles. The present invention proposes a swab collection device for respiratory virus detection.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a swab collection device for respiratory virus detection described in the present invention includes a bottom shell, the top end of the bottom shell is in contact with a fixed shell, the top end of the fixed shell is fixedly connected to a top cover, the top end of the top cover is provided with a sampling groove, the inner wall of the top cover is rotatably connected to a rotating column, the bottom end of the rotating column is rotatably connected to a central axis, an internal collecting ring is fixedly connected to the outer side of the central axis, an external collecting ring is sleeved on the outer side of the internal collecting ring, and the bottom ends of the internal collecting ring and the external collecting ring are both provided with an ejection mechanism, the ejection mechanism is used to ensure that only one group of sampling tubes is exposed to the outside of the top cover each time sampling is performed, the internal collecting ring is provided with a transmission mechanism, the transmission mechanism can ensure that during operation, the internal collecting ring and the external collecting ring will not rotate at the same time, and a separation mechanism is provided inside the bottom shell, the separation mechanism is used to separate the bottom shell from the fixed shell.

[0007] Preferably, the ejection mechanism includes multiple groups of placement grooves, which are provided on the internal collection ring and the external collection ring, the bottom ends of the internal collection ring and the external collection ring do not contact the top of the support frame, the support frame is provided with three groups, the bottom end of the support frame is fixedly connected to the bottom plate, the bottom plate is fixedly connected to the inner wall of the bottom shell, two groups of top blocks are fixedly connected to the bottom plate, the top blocks are located directly below the sampling groove, the top blocks are trapezoidal in design, and the top blocks are located between two adjacent groups of support frames, the outer side of the internal collection ring does not contact the inner wall of the external collection ring, the outer side of the external collection ring is provided with a groove, the inner wall of the groove contacts multiple groups of support pulleys, and the support pulleys are fixedly connected to the inner wall of the fixed shell.

[0008] Preferably, the transmission mechanism includes a rotating gear, the bottom end of the rotating gear is fixedly connected with four groups of pins, the pins are inserted in the slot, the slot is opened on the inner wall of the receiving groove, the receiving groove is opened at the top of the internal collecting ring, the middle part of the rotating gear is fixedly connected with a cross, the cross is slidably connected in the cross groove, the cross groove is opened inside the rotating column, the top of the cross is fixedly connected with a pull rod, the top of the pull rod is fixedly connected with a pull ring, the pull rod passes through the top cover, the bottom end of the top cover is rotatably connected with a fixed gear, the bottom end of the fixed gear does not contact the top of the internal collecting ring and the external collecting ring, the fixed gear is meshed with a gear ring, and the gear ring is fixedly connected to the top of the external collecting ring.

[0009] Preferably, the separation mechanism includes four groups of protrusions, the protrusions are rotatably connected with a first connecting rod, the first connecting rod is rotatably connected to the second connecting rod, the second connecting rod is rotatably connected to the third connecting rod, the third connecting rod is rotatably connected to the bottom end of the support block, the support block is internally rotatably connected with a connecting piece, the cross-section of the connecting piece is T-shaped, the connecting piece is fixedly connected to the bottom end of the internal collecting ring, the protrusion is close to the rotating base, the rotating base is fixedly connected to the bottom end of the inner wall of the bottom shell, the rotating base is sleeved on the outside of the connecting shaft, the bottom end of the connecting shaft is rotatably connected to the inner wall of the bottom shell, a deep groove is opened at the top of the connecting shaft, a plug plate is inserted into the inside of the deep groove, and the plug plate is fixedly connected to the bottom end of the central shaft.

[0010] Preferably, the top end of the inner wall of the bottom shell and the bottom end of the inner wall of the fixed shell are both fixedly connected with a fixing plate, an annular groove is formed on the fixing plate, a magnet is fixedly connected inside the annular groove, and the two groups of magnets are attracted to each other.

[0011] Preferably, a plurality of groups of connection balls are fixedly connected to the top end of the fixing plate at the top end, and the connection balls are in contact with the bottom end of the external collecting ring.

[0012] Preferably, a connecting ring is fixedly connected to the inner wall of the outer collecting ring, and the connecting ring is rotatably connected to the inner collecting ring.

[0013] Preferably, a rubber sleeve is fixedly connected to the inner wall of the rotating base, and the rubber sleeve is arranged on the outer side of the connecting shaft.

[0014] Preferably, four groups of springs are fixedly connected to the top of the cross, and the tops of the springs are fixedly connected to the inner walls of the cross groove.

[0015] Preferably, a protective block is sleeved on the outer side of the pull ring, and the protective block is fixedly connected to the top end of the top cover.

[0016] The present invention is beneficial in that:

[0017] 1. The present invention realizes the function of only leaking out one group of sampling tubes each time sampling is taken through the structural design of the ejection mechanism, while the remaining sampling tubes will continue to be stored inside the bottom shell and the fixed shell, thereby providing protection for the sampling tubes. Even if they fall or roll over, the sampling tubes inside the bottom shell will not fall to the outside, making the sampling tubes safer during placement, solving the problem of the swab collection device in the prior art. When the sampling tubes are collected uniformly, since the top part of the first collection box does not have a shielding structure, the top part of the sampling tubes is directly exposed to the outside, and lacks protection. If an error occurs during the sampling process, causing the collection box to fall to the ground or roll over, the sampling tubes inside the collection box may be scattered all over the ground, causing more troubles.

[0018] 2. The present invention adopts the structural design of the transmission mechanism. The internal collecting ring can be rotated by rotating the pull ring, and the rotating gear can be meshed with the fixed gear by pulling the pull ring upwards. At this time, when the pull ring is rotated again, the external collecting ring will rotate while the internal collecting ring remains stationary, so as to ensure that when the sampling tube is taken out and placed in the placement groove, the internal collecting ring and the external collecting ring will not rotate at the same time, thereby avoiding confusion in operation due to the simultaneous rotation of the internal collecting ring and the external collecting ring during operation.

[0019] 3. The present invention adopts the structural design of the separation mechanism, and the bottom shell and the fixed shell are not fixed together. The bottom shell and the fixed shell can be separated by pulling the fixed shell upwards, so that the bottom shell and the fixed shell are opened. At this time, the sampling tubes inside the bottom shell and the fixed shell can be easily taken out, so that the operation process can be more convenient when taking the sampling tubes in large quantities. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the support frame and the bottom plate of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the bottom end of the top cover of the present invention;

[0025] Figure 5 It is a schematic diagram of the connection structure of the rotating gear of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure of the external collecting ring of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure inside the bottom shell of the present invention.

[0029] In the figure: 1, bottom shell; 20, fixed shell; 21, top cover; 22, sampling slot; 23, protective block; 24, central axis; 25, plug plate; 26, rotating base; 27, rubber sleeve; 28, connecting shaft; 29, placement groove; 30, inner collection ring; 31, outer collection ring; 32, gear ring; 33, groove; 34, connecting ring; 35, supporting pulley; 36, fixed plate; 37, connecting ball; 38, annular groove; 39, magnetic Iron; 40, slot; 41, storage slot; 42, plug column; 43, rotating gear; 44, fixed gear; 45, cross; 46, spring; 47, pull rod; 48, pull ring; 49, rotating column; 50, cross groove; 51, protrusion; 52, first connecting rod; 53, second connecting rod; 54, third connecting rod; 55, deep groove; 56, support block; 57, connecting piece; 58, support frame; 59, bottom plate; 60, top block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0031] See also Figure 1 - Figure 8 As shown, a swab collection device for respiratory virus detection comprises a bottom shell 1, the top end of the bottom shell 1 contacts with a fixed shell 20, the top end of the fixed shell 20 is fixedly connected with a top cover 21, the top end of the top cover 21 is provided with a sampling slot 22, the inner wall of the top cover 21 is rotatably connected with a rotating column 49, the bottom end of the rotating column 49 is rotatably connected with a central shaft 24, the outer side of the central shaft 24 is fixedly connected with an internal collection ring 30, the outer side of the internal collection ring 30 is sleeved with an external collection ring 31, the bottom ends of the internal collection ring 30 and the external collection ring 31 are both provided with an ejection mechanism, the ejection mechanism is used to ensure that only one group of sampling tubes is exposed to the outside of the top cover 21 each time sampling is performed, the internal collection ring 30 is provided with a transmission mechanism, the transmission mechanism can ensure that during operation, the internal collection ring 30 and the external collection ring 31 do not rotate at the same time, and the bottom of the bottom shell 1 is provided with a separation mechanism, the separation mechanism is used to separate the bottom shell 1 from the fixed shell 20;

[0032] Further, the ejection mechanism includes multiple groups of placement grooves 29, and the placement grooves 29 are provided on the internal collection ring 30 and the external collection ring 31. The bottom ends of the internal collection ring 30 and the external collection ring 31 do not contact the top of the support frame 58. The support frame 58 is provided with three groups, and the bottom end of the support frame 58 is fixedly connected to the bottom plate 59, and the bottom plate 59 is fixedly connected to the inner wall of the bottom shell 1. Two groups of top blocks 60 are fixedly connected to the bottom plate 59, and the top blocks 60 are located directly below the sampling slot 22. The top blocks 60 are trapezoidal in design and are located between two adjacent groups of support frames 58. The outer side of the internal collection ring 30 does not contact the inner wall of the external collection ring 31. The outer side of the external collection ring 31 is provided with a groove 33, and the inner wall of the groove 33 contacts multiple groups of support pulleys 35, and the support pulleys 35 are fixedly connected to the inner wall of the fixed shell 20.

[0033] Through the structural design of the ejection mechanism, the function of only leaking out one group of sampling tubes each time sampling is performed, and the remaining sampling tubes will continue to be stored inside the bottom shell 1 and the fixed shell 20, thereby providing protection for the sampling tubes. Even if they fall or overturn, the sampling tubes inside the bottom shell 1 will not fall to the outside, making the sampling tubes safer during placement. During operation, the sampling tubes are first stored in the placement grooves 29 opened on the internal collection ring 30 and the external collection ring 31. The placement grooves 29 penetrate the internal collection ring 30 and the external collection ring 31, and the bottom end portion of the sampling tube is supported by three groups of support frames 58. When the internal collection ring 30 and the external collection ring 31 are rotated, a group of placement grooves 29 opened on the internal collection ring 30 or the external collection ring 31 are rotated to the position of the sampling groove 22. At this time, the ejection block 60 will abut against the bottom end of the sampling tube and lift the sampling tube upward, and the sampling tube inside the placement groove 29 will move upward for a distance. At this time, the medical staff The staff can smoothly take out the sampling tube from the placement slot 29 by grasping the top part of the sampling tube, wherein the width of the sampling slot 22 is larger than the diameter of the placement slot 29, and the placement slots 29 are distributed in a circle on the internal collection ring 30 and the external collection ring 31. When a group of placement slots 29 is located at the sampling slot 22, the top parts of the remaining placement slots 29 will be blocked by the top cover 21, thereby ensuring that the remaining placement slots 29 can be protected during the sampling process. The outer side of the external collection ring 31 is in contact with the groove 33 and multiple groups of support pulleys 35 to ensure that the external collection ring 31 rotates stably in the fixed shell 20. When it is not necessary to take out the sampling tube placed in the placement slot 29, it is only necessary to rotate the area between the two adjacent groups of placement slots 29 to the bottom of the sampling slot 22. At this time, the sampling tubes in the placement slot 29 will all be blocked by the top cover 21, and the top cover 21 is made of transparent PP material, so that medical staff can accurately locate the position of the required sampling tube when taking out the sampling tube.

[0034] Further, the transmission mechanism includes a rotating gear 43, the bottom end of which is fixedly connected with four groups of plug posts 42, the plug posts 42 are inserted into a slot 40, the slot 40 is provided on the inner wall of a receiving slot 41, the receiving slot 41 is provided at the top end of the internal collecting ring 30, a cross 45 is fixedly connected to the middle part of the rotating gear 43, the cross 45 is slidably connected in a cross slot 50, the cross slot 50 is provided inside a rotating column 49, a pull rod 47 is fixedly connected to the top end of the pull rod 47, a pull ring 48 is fixedly connected to the top end of the pull rod 47, the pull rod 47 passes through the top cover 21, the bottom end of the top cover 21 is rotatably connected with a fixed gear 44, the bottom end of the fixed gear 44 does not contact the top ends of the internal collecting ring 30 and the external collecting ring 31, the fixed gear 44 is meshed with a gear ring 32, and the gear ring 32 is fixedly connected to the top end of the external collecting ring 31;

[0035] Through the structural design of the transmission mechanism, the internal collecting ring 30 can be rotated by rotating the pull ring 48, and the rotating gear 43 can be meshed with the fixed gear 44 by pulling the pull ring 48 upwards. At this time, when the pull ring 48 is rotated again, the external collecting ring 31 will rotate while the internal collecting ring 30 remains stationary, so as to ensure that when the sampling tube is taken out and the sampling tube is placed in the placement groove 29, the internal collecting ring 30 and the external collecting ring 31 will not rotate at the same time, so as to avoid confusion in operation due to the simultaneous rotation of the internal collecting ring 30 and the external collecting ring 31 during operation. When working, the pull ring 48 can easily drive the pull rod 47 to rotate, and the bottom end of the pull rod 47 is connected to the rotating gear 43 through the cross 45, and the plug post 42 fixed at the bottom end of the rotating gear 43 is inserted into the slot 40. The contact enables the rotating gear 43 to smoothly drive the internal collecting ring 30 to rotate when it rotates. At this time, since the rotating gear 43 is not engaged with the fixed gear 44, the external collecting ring 31 will remain stationary. When the external collecting ring 31 needs to be rotated, just pull the pull ring 48 upwards, the rotating gear 43 in the receiving groove 41 will move upwards, and the cross 45 fixed in the middle of the rotating gear 43 will slide in the cross groove 50. When the rotating gear 43 is engaged with the fixed gear 44, the rotation of the rotating gear 43 will be transmitted to the ring gear 32 through the fixed gear 44. The ring gear 32 is connected to the external collecting ring 31, so the external collecting ring 31 can rotate normally. Since the plug 42 fixed at the bottom of the rotating gear 43 will be separated from the slot 40 when the rotating gear 43 moves upward, the internal collecting ring 30 can remain stationary.

[0036] Further, the separation mechanism includes four groups of protrusions 51, the protrusions 51 are rotatably connected with a first connecting rod 52, the first connecting rod 52 is rotatably connected to the second connecting rod 53, the second connecting rod 53 is rotatably connected to the third connecting rod 54, the third connecting rod 54 is rotatably connected to the bottom end of the support block 56, the support block 56 is internally rotatably connected with a connecting piece 57, the cross section of the connecting piece 57 is T-shaped, the connecting piece 57 is fixedly connected to the bottom end of the internal collecting ring 30, the protrusion 51 is close to the rotating base 26, the rotating base 26 is fixedly connected to the bottom end of the inner wall of the bottom shell 1, the rotating base 26 is sleeved on the outside of the connecting shaft 28, the bottom end of the connecting shaft 28 is rotatably connected to the inner wall of the bottom shell 1, the top of the connecting shaft 28 is provided with a deep groove 55, the inside of the deep groove 55 is inserted with an insert plate 25, and the insert plate 25 is fixedly connected to the bottom end of the central shaft 24;

[0037] Through the structural design of the separation mechanism, the bottom shell 1 and the fixed shell 20 are not fixed together. The bottom shell 1 and the fixed shell 20 can be separated by pulling the fixed shell 20 upwards, so that the bottom shell 1 and the fixed shell 20 are opened. At this time, it is convenient to take out the sampling tubes inside the bottom shell 1 and the fixed shell 20, so that when the sampling tubes are taken out in large quantities, the operation process can be more convenient. When working, when the fixed shell 20 is pulled upwards, the bottom end of the fixed shell 20 will be separated from the bottom shell 1, and the bottom end of the support block 56 will pull the third connecting rod 54, the protrusion 51, the first connecting rod 52, the second connecting rod 53 and the third connecting rod 54 are all connected together by rotation, so the first connecting rod 52 and the second connecting rod 53 will be stretched, and the plug plate 25 fixed at the bottom end of the central axis 24 will also slide in the deep groove 55. At this time, the placement groove 29 will be separated from the sampling tube, and the bottom end of the sampling tube will continue to be supported by the support frame 58, wherein the plug plate 25 is used to transmit the rotation of the central axis 24 to the connecting shaft 28, and when the bottom shell 1 and the fixed shell 20 are separated, ensure that the central axis 24 and the connecting shaft 28 can be separated normally, and the top of the support block 56 is connected to the bottom end of the internal collection ring 30 through the connecting piece 57 to offset the rotation of the internal collection ring 30.

[0038] Furthermore, the top end of the inner wall of the bottom shell 1 and the bottom end of the inner wall of the fixed shell 20 are both fixedly connected with a fixing plate 36, and an annular groove 38 is formed on the fixing plate 36. A magnet 39 is fixedly connected inside the annular groove 38, and the two groups of magnets 39 are attracted to each other.

[0039] During operation, the two sets of fixing plates 36 contact each other, and the magnets 39 inside the annular groove 38 are attracted to each other to fix the bottom shell 1 and the fixing shell 20 together, and at the same time, the bottom shell 1 and the fixing shell 20 are separated.

[0040] Furthermore, a plurality of connection balls 37 are fixedly connected to the top of the fixing plate 36, and the connection balls 37 are in contact with the bottom end of the external collecting ring 31;

[0041] During operation, a fixing plate 36 fixed on the inner wall of the fixed shell 20 has a groove corresponding to the connecting ball 37 on its top, and multiple groups of connecting balls 37 rotate inside the fixing plate 36. The connecting balls 37 are in contact with the bottom end of the external collecting ring 31 to provide support for the external collecting ring 31 during rotation, thereby ensuring that the external collecting ring 31 can rotate stably.

[0042] Furthermore, a connecting ring 34 is fixedly connected to the inner wall of the outer collecting ring 31, and the connecting ring 34 is rotatably connected to the inner collecting ring 30;

[0043] When working, the connecting ring 34 is designed as a whole in an annular shape and has a T-shaped cross section, so that the inner collecting ring 30 and the outer collecting ring 31 can be connected together through the connecting ring 34 to ensure that the inner collecting ring 30 and the outer collecting ring 31 can move as a whole with the fixed shell 20.

[0044] Furthermore, a rubber sleeve 27 is fixedly connected to the inner wall of the rotating base 26, and the rubber sleeve 27 is sleeved on the outer side of the connecting shaft 28;

[0045] During operation, the rubber sleeve 27 is sleeved on the outside of the connecting shaft 28 to provide resistance during the rotation of the connecting shaft 28 so that the rotation of the connecting shaft 28 will not be too flexible, thereby ensuring that the connecting shaft 28 will not rotate due to minor vibrations. Embodiment 2

[0046] See also Figure 1 and Figure 5 As shown, comparative example 1 is another embodiment of the present invention, the top of the cross 45 is fixedly connected with four groups of springs 46, and the top of the spring 46 is fixedly connected with the inner wall of the cross slot 50;

[0047] During operation, four groups of springs 46 are fixed to the top of the cross 45. When the cross 45 moves upward inside the cross slot 50, the springs 46 will be compressed and provide a certain resistance. When the pull ring 48 is no longer pulled, the rotating gear 43 can be reset under the action of gravity and the springs 46, ensuring that the rotating gear 43 can be reset in time.

[0048] The outer side of the pull ring 48 is sleeved with a protective block 23, and the protective block 23 is fixedly connected to the top of the top cover 21;

[0049] During operation, the protection block 23 is cylindrical in design and is used to protect the pull ring 48 to prevent the pull ring 48 from directly colliding with the outside world.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A swab collection device for respiratory virus detection, comprising a bottom shell, the top of which is in contact with a fixed shell, characterized in that: The top of the fixed shell is fixedly connected with a top cover, the top of the top cover is provided with a sampling groove, the inner wall of the top cover is rotatably connected with the rotating column, the bottom end of the rotating column is rotatably connected with the central shaft, the outer side of the central shaft is fixedly connected with an internal collecting ring, the outer side of the internal collecting ring is sleeved with an external collecting ring, the bottom ends of the internal collecting ring and the external collecting ring are both provided with an ejection mechanism, the ejection mechanism is used to ensure that only one group of sampling tubes is exposed to the outside of the top cover each time sampling is performed, the internal collecting ring is provided with a transmission mechanism, the transmission mechanism can ensure that during operation, the internal collecting ring and the external collecting ring will not rotate at the same time, and the bottom of the bottom shell is provided with a separation mechanism, the separation mechanism is used to separate the bottom shell from the fixed shell; The separation mechanism includes four groups of protrusions, the protrusions are rotatably connected with a first connecting rod, the first connecting rod is rotatably connected to the second connecting rod, the second connecting rod is rotatably connected to the third connecting rod, the third connecting rod is rotatably connected to the bottom end of the support block, the support block is internally rotatably connected with a connecting piece, the cross section of the connecting piece is T-shaped, the connecting piece is fixedly connected to the bottom end of the internal collecting ring, the protrusion is close to the rotating base, the rotating base is fixedly connected to the bottom end of the inner wall of the bottom shell, the rotating base is sleeved on the outside of the connecting shaft, the bottom end of the connecting shaft is rotatably connected to the inner wall of the bottom shell, the top end of the connecting shaft is provided with a deep groove, the inside of the deep groove is provided with an insert plate, and the insert plate is fixedly connected to the bottom end of the central shaft; The top end of the inner wall of the bottom shell and the bottom end of the inner wall of the fixed shell are both fixedly connected with a fixing plate, an annular groove is opened on the fixing plate, and a magnet is fixedly connected inside the annular groove, and the two groups of magnets are attracted to each other.

2. A swab collection device for respiratory virus detection according to claim 1, characterized in that: The ejection mechanism includes multiple groups of placement grooves, which are provided on the internal collection ring and the external collection ring. The bottom ends of the internal collection ring and the external collection ring do not contact the top of the support frame. The support frame is provided with three groups. The bottom end of the support frame is fixedly connected to the bottom plate, and the bottom plate is fixedly connected to the inner wall of the bottom shell. Two groups of top blocks are fixedly connected to the bottom plate, and the top blocks are located directly below the sampling groove. The top blocks are trapezoidal in design and are located between two adjacent groups of support frames. The outer side of the internal collection ring does not contact the inner wall of the external collection ring. A groove is provided on the outer side of the external collection ring, and the inner wall of the groove contacts multiple groups of support pulleys, and the support pulleys are fixedly connected to the inner wall of the fixed shell.

3. A swab collection device for respiratory virus detection according to claim 1, characterized in that: The transmission mechanism includes a rotating gear, the bottom end of the rotating gear is fixedly connected with four groups of plug posts, the plug posts are inserted in the slot, the slot is opened on the inner wall of the storage groove, the storage groove is opened at the top of the internal collecting ring, the middle part of the rotating gear is fixedly connected with a cross, the cross is slidably connected in the cross groove, the cross groove is opened inside the rotating column, the top of the cross is fixedly connected with a pull rod, the top of the pull rod is fixedly connected with a pull ring, the pull rod passes through the top cover, the bottom end of the top cover is rotatably connected with a fixed gear, the bottom end of the fixed gear does not contact the top of the internal collecting ring and the external collecting ring, the fixed gear is meshed with a gear ring, and the gear ring is fixedly connected to the top of the external collecting ring.

4. A swab collection device for respiratory virus detection according to claim 1, characterized in that: A plurality of groups of connection balls are fixedly connected to the top of the fixing plate at the bottom end of the inner wall of the fixing shell, and the connection balls are in contact with the bottom end of the external collecting ring.

5. A swab collection device for respiratory virus detection according to claim 4, characterized in that: The inner wall of the outer collecting ring is fixedly connected with a connecting ring, and the connecting ring is rotatably connected with the inner collecting ring.

6. A swab collection device for respiratory virus detection according to claim 1, characterized in that: A rubber sleeve is fixedly connected to the inner wall of the rotating base, and the rubber sleeve is arranged on the outer side of the connecting shaft.

7. A swab collection device for respiratory virus detection according to claim 3, characterized in that: Four groups of springs are fixedly connected to the top of the cross, and the tops of the springs are fixedly connected to the inner walls of the cross slots.

8. A swab collection device for respiratory virus detection according to claim 3, characterized in that: The outer side of the pull ring is sleeved with a protection block, and the protection block is fixedly connected to the top end of the top cover.

Images