Sampling swab tube with biological culture function and operation method

Abstract

The invention relates to the technical field of biological culture, in particular to a sampling swab tube with a biological culture function and an operation method. Comprising a sampling tube, a hemispherical rubber lug with the middle protruding upwards is arranged in the lower portion of the sampling tube, the outer edge of the rubber lug is fixedly and hermetically connected with the inner wall of the sampling tube, a plurality of hard rods are fixed to the outer spherical surface of the rubber lug, and the middle of the rubber lug is fixedly connected with a sliding plate through a fixing rod; a spherical supporting piece with the middle protruding upwards is arranged on the outer side of the fixing rod and located between the rubber protruding piece and the sliding plate, the upper end of the spherical supporting piece is fixedly connected with the fixing rod, the upper end of the sampling pipe is in threaded connection with the connecting sleeve, the outer edge of the inner ring makes sealing contact with the inner edge of the sampling pipe, and the upper end of the connecting sleeve is in threaded connection with the cover body. The upper end of the connecting sleeve is hermetically contacted with the cover body. Through cooperative deformation of the rubber protruding pieces and the spherical supporting piece, the hard rods are driven to be gathered or dispersed, and self-adaptive clamping force on the swab head is formed.

Description

Technical Field

[0001] The present invention relates to the field of biological culture technology, and particularly relates to a sampling swab tube with biological culture function and an operation method thereof. Background Art

[0002] In the fields of clinical detection and microbial culture, the sampling swab tube needs to take into account sample collection, transportation stability and subsequent detection convenience. However, traditional sampling swab tubes (such as patent CN201910034587.0) have the following defects: insufficient transportation stability: during transportation, the swab head is prone to separate from the culture solution due to shaking and adhere to the tube wall, resulting in the separation of bacteria and nutrient solution and affecting the bacteria enrichment effect. Risk of pouring pollution: when detecting, the liquid needs to be poured out, and the swab head may flow out with the liquid, requiring manual fishing, which increases the operation complexity and the risk of cross-contamination. Insufficient fixing mechanism: relying on static brackets or adhesive materials, with poor adaptability and may interfere with the culture environment. Summary of the Invention

[0003] The main purpose of the present invention is to provide a sampling swab tube with biological culture function and an operation method thereof, which can effectively and stably hold the swab, keep the swab head in the culture solution during transportation all the time, ensure the bacteria enrichment effect, and prevent the swab head from being poured out when pouring the culture solution. To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0004] A sampling swab tube with biological culture function, including a sampling tube with openings at both the upper and lower ends. It is characterized in that a hemispherical rubber convex piece with a middle part protruding upward is arranged inside the lower part of the sampling tube, the outer edge of the rubber convex piece is fixedly and hermetically connected with the inner wall of the sampling tube, a plurality of hard rods are fixed on the outer spherical surface of the rubber convex piece, a sliding plate is slidably arranged in the axial direction inside the sampling tube, the sliding plate is located below the rubber convex piece, the middle part of the rubber convex piece and the sliding plate are fixedly connected by a fixing rod, the sliding plate and the sampling tube are limited by a limiting component, a spherical support piece with a middle part protruding upward is arranged outside the fixing rod, the spherical support piece has elasticity, the spherical support piece is located between the rubber convex piece and the sliding plate, after the spherical support piece and the rubber convex piece are subjected to a downward pressure, the middle parts of the spherical support piece and the rubber convex piece can protrude downward and maintain this state, the upper end of the spherical support piece is fixedly connected with the fixing rod, the lower end of the spherical support piece is fixedly connected with the sampling tube, the upper end of the sampling tube is threadedly connected with a connecting sleeve, an inner ring is fixed inside the lower part of the connecting sleeve, the outer edge of the inner ring is in sealing contact with the inner edge of the sampling tube, the upper end of the connecting sleeve is threadedly connected with a cover body, and the upper end of the connecting sleeve is in sealing contact with the cover body.

[0005] Specifically, the outer side surface of the hard rod is a rough surface.

[0006] Specifically, flanges are arranged on both sides of the sliding plate, and chutes corresponding to the flanges are opened on the inner wall of the sampling tube, and the flanges are slidably arranged in the chute on one side thereof.

[0007] Specifically, the limiting assembly includes an arc-shaped protrusion fixed on the side of the flange away from the axis of the sampling tube, the arc-shaped protrusion is elastic, an arc-shaped groove corresponding to the arc-shaped protrusion is opened in the slide groove, and the arc-shaped protrusion is clamped in the arc-shaped groove.

[0008] Add culture fluid to the sampling tube, put the swab head into the culture fluid of the sampling tube and break off the swab head. At this time, the swab head is located in the culture fluid in the sampling tube; insert the inner ring seal into the upper end of the sampling tube, rotate the connecting sleeve, and after the connecting sleeve is threadedly connected to the upper end of the sampling tube, the connecting sleeve, the inner ring and the cover body rotate downward on the sampling tube. During the downward rotation of the connecting sleeve, the inner ring and the cover body, the space between the cover body, the connecting sleeve, the inner ring, the sampling tube and the rubber convex piece is compressed, the rubber convex piece and the spherical support piece are deformed downward, and the fixed rod drives the sliding plate to slide downward. When the connecting sleeve rotates down into place, the middle part of the rubber convex piece and the spherical support piece bulges downward, and multiple hard rods gather and squeeze the swab head, and the swab head is stabilized.

[0009] When the culture fluid in the sampling tube needs to be poured out, the cover body is rotated, and after the cover body is separated from the upper end of the connecting sleeve, the pressure inside and outside the sampling tube is balanced. Since the spherical support member and the rubber protrusion are subjected to downward pressure, the middle parts of the spherical support member and the rubber protrusion can bulge downward and maintain this state. Therefore, after the cover body is opened, the middle parts of the spherical support member and the rubber protrusion maintain a downward bulging state, preventing the swab head in the sampling tube from being poured out when pouring the culture fluid.

[0010] When the swab head needs to be poured out of the sampling tube, the sampling tube is inverted and aligned with the waste bucket up and down, and the sliding plate is pushed downward with the fingers. The sliding plate causes the rubber protrusion and the spherical support to deform downward through the fixed rod. When the middle part of the spherical support and the rubber protrusion are in a state of convexity downward, multiple hard rods disperse and release the swab head, and then the swab head can be discharged from the sampling tube and fall into the waste bucket.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Through the coordinated deformation of the rubber convex piece and the spherical support, two-way deformation (upward or downward convex) is achieved under pressure, thereby driving the hard rod to gather or disperse, forming an adaptive clamping force on the swab head. When the swab head is clamped, it is prevented from being separated from the liquid surface or attached to the tube wall due to transportation shaking, ensuring stable bacterial growth.

[0013] 2. The hard rod with a rough surface enhances the friction with the swab head, adapts to swab heads of different sizes, and avoids the size limitation problem of traditional rigid brackets.

[0014] 3. When pouring out the culture medium, keep the swab head clamped by multiple rigid rods to prevent the swab head from flowing out with the culture medium, avoiding the step of manually fishing out the swab head.

[0015] 4. The spherical support and the rubber lug have the characteristic of deformation memory, ensuring that the clamping state of the rigid rod on the swab head is persistent and effective.

[0016] 5. After placing the sampling tube, push the sliding plate, the rubber lug quickly resets, the rigid rod automatically releases the swab head, and it directly drops into the waste bin, reducing the risk of manual contact.

[0017] 6. The connecting sleeve, the cover body and the sampling tube are detachably assembled, which is convenient for production, sterilization and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the present invention.

[0019] Figure 2 It is a cross-sectional view of the present invention.

[0020] Figure 3 It is a schematic diagram of the sliding plate in the sampling tube.

[0021] Figure 4 It is a schematic diagram of the connection between the rubber lug and the rigid rod.

[0022] Figure 5 It is a schematic diagram when the middle part of the rubber lug bulges upward.

[0023] Figure 6 It is a schematic diagram when the middle part of the rubber lug bulges downward.

[0024] The names of the components in the drawings are: 1. Sampling tube; 2. Rubber lug; 3. Rigid rod; 4. Fixed rod; 5. Spherical support; 6. Sliding plate; 7. Chute; 8. Arc-shaped convex block; 9. Connecting sleeve; 10. Inner ring; 11. Cover body. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the 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.

[0026] As Figures 1 - 6 shown, a sampling swab tube with a biological culture function includes a sampling tube 1, and both the upper and lower ends of the sampling tube 1 are open.

[0027] Inside the lower part of the sampling tube 1, there is a hemispherical rubber lug 2 with a middle part bulging upward. The outer edge of the rubber lug 2 is fixedly and hermetically connected to the inner wall of the sampling tube 1.

[0028] A plurality of hard rods 3 are fixed on the outer spherical surface of the rubber convex piece 2, and the outer side surface of the hard rods 3 is a rough surface.

[0029] A sliding plate 6 is slidably arranged in the axial direction of the sampling tube 1 .

[0030] Flanges are arranged on both sides of the sliding plate 6 , and a slide groove 7 corresponding to the flange is opened on the inner wall of the sampling tube 1 , and the flange is slidably arranged in the slide groove 7 on one side thereof.

[0031] The sliding plate 6 is located below the rubber convex piece 2 , and the middle portion of the rubber convex piece 2 is fixedly connected to the sliding plate 6 via a fixing rod 4 .

[0032] The sliding plate 6 and the sampling tube 1 are limited by a limiting assembly, which includes an arc-shaped protrusion 8 fixed on the side of the flange away from the axis of the sampling tube 1, the arc-shaped protrusion 8 is elastic, and an arc-shaped groove corresponding to the arc-shaped protrusion 8 is opened in the slide groove 7, and the arc-shaped protrusion 8 is clamped in the arc-shaped groove.

[0033] A spherical support 5 with an upwardly protruding middle portion is disposed outside the fixed rod 4. The spherical support 5 is elastic and is located between the rubber convex piece 2 and the sliding plate 6. The upper end of the spherical support 5 is fixedly connected to the fixed rod 4, and the lower end of the spherical support 5 is fixedly connected to the sampling tube 1.

[0034] After the spherical support member 5 and the rubber protrusion 2 are subjected to downward pressure, the middle parts of the spherical support member 5 and the rubber protrusion 2 can bulge downward and maintain this state.

[0035] The upper end of the sampling tube 1 is threadedly connected to the connecting sleeve 9, an inner ring 10 is fixed inside the lower part of the connecting sleeve 9, the outer edge of the inner ring 10 is in sealing contact with the inner edge of the sampling tube 1, and the upper end of the connecting sleeve 9 is threadedly connected to the cover body 11, and the upper end of the connecting sleeve 9 is in sealing contact with the cover body 11.

[0036] A sealing sleeve is fixed to the outer edge of the inner ring 10 , and the inner ring 10 is sealed and connected to the inner edge of the sampling tube 1 through the sealing sleeve.

[0037] The operation method of the sampling swab tube with biological culture function is as follows: add culture solution into the sampling tube 1, put the swab head into the culture solution of the sampling tube 1 and break the swab head. At this time, the swab head is located in the culture solution in the sampling tube 1.

[0038] The inner ring 10 is hermetically inserted into the upper end of the sampling tube 1. After rotating the connecting sleeve 9 and threading the connecting sleeve 9 with the upper end of the sampling tube 1, the connecting sleeve 9, the inner ring 10 and the cover body 11 rotate downward on the sampling tube 1. During the process of the connecting sleeve 9, the inner ring 10 and the cover body 11 rotating downward, the space between the cover body 11, the connecting sleeve 9, the inner ring 10, the sampling tube 1 and the rubber convex piece 2 is compressed, and the rubber convex piece 2 and the spherical support 5 deform downward, and the fixed rod 4 drives the sliding plate 6 to slide downward. When the connecting sleeve 9 rotates downward in place, the middle parts of the rubber convex piece 2 and the spherical support 5 bulge downward, and the multiple hard rods 3 gather and squeeze the swab head, and the swab head is stabilized. At this time, the state of the rubber convex piece 2 is as Figure 6 shown.

[0039] During the downward sliding of the sliding plate 6, the arc-shaped convex block 8 slides out of the arc-shaped groove and then slides into contact with the groove wall of the sliding groove 7. After the middle parts of the rubber convex piece 2 and the spherical support 5 bulge downward, under the friction force between the arc-shaped convex block 8 and the sliding groove 7, the stability of the middle parts of the rubber convex piece 2 and the spherical support 5 in the downward bulging state can be improved.

[0040] When it is necessary to pour out the culture solution in the sampling tube 1, rotate the cover body 11. After the cover body 11 is separated from the upper end of the connecting sleeve 9, the pressure inside and outside the sampling tube 1 is balanced. Since the spherical support 5 and the rubber convex piece 2 are under downward pressure, the middle parts of the spherical support 5 and the rubber convex piece 2 can bulge downward and maintain this state. Therefore, after opening the cover body 11, the middle parts of the spherical support 5 and the rubber convex piece 2 remain in the downward bulging state, preventing the swab head in the sampling tube 1 from being poured out when pouring the culture solution.

[0041] When it is necessary to pour out the swab head from the sampling tube 1, invert the sampling tube 1 so that the sampling tube 1 corresponds to the waste bin up and down, and use a finger to push the sliding plate 6 downward. The sliding plate 6 makes the rubber convex piece 2 and the spherical support 5 deform downward through the fixed rod 4. When the middle parts of the spherical support 5 and the rubber convex piece 2 are in the state of bulging downward, the arc-shaped convex block 8 is clamped in the arc-shaped groove, and the multiple hard rods 3 are dispersed and release the swab head, and then the swab head can be discharged from the sampling tube 1 and fall into the waste bin.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sampling swab tube with biological culture function, comprising a sampling tube (1), the sampling tube (1) having openings at both ends, characterized in that: A hemispherical rubber convex piece (2) with a middle portion protruding upward is arranged in the lower part of the sampling tube (1); the outer edge of the rubber convex piece (2) is fixedly and sealedly connected to the inner wall of the sampling tube (1); a plurality of hard rods (3) are fixed on the outer spherical surface of the rubber convex piece (2); a sliding plate (6) is arranged in the axial direction of the sampling tube (1); the sliding plate (6) is located below the rubber convex piece (2); the middle portion of the rubber convex piece (2) is fixedly connected to the sliding plate (6) via a fixing rod (4); the sliding plate (6) and the sampling tube (1) are limited by a limiting assembly; a spherical support piece (5) with a middle portion protruding upward is arranged on the outer side of the fixing rod (4); the spherical support piece (5) is elastic; and the spherical support piece (5) is 5) is located between the rubber protrusion (2) and the sliding plate (6); after the spherical support member (5) and the rubber protrusion (2) are subjected to downward pressure, the middle parts of the spherical support member (5) and the rubber protrusion (2) can bulge downward and maintain this state; the upper end of the spherical support member (5) is fixedly connected to the fixing rod (4); the lower end of the spherical support member (5) is fixedly connected to the sampling tube (1); the upper end of the sampling tube (1) is threadedly connected to the connecting sleeve (9); an inner ring (10) is fixed inside the lower part of the connecting sleeve (9); the outer edge of the inner ring (10) is in sealing contact with the inner edge of the sampling tube (1); the upper end of the connecting sleeve (9) is threadedly connected to the cover body (11); the upper end of the connecting sleeve (9) is in sealing contact with the cover body (11).

2. A sampling swab tube with biological culture function according to claim 1, characterized in that: The outer side surface of the hard rod (3) is a rough surface.

3. The sampling swab tube with biological culture function according to claim 1, characterized in that: Flanges are arranged on both sides of the sliding plate (6), and a slide groove (7) corresponding to the flange is opened on the inner wall of the sampling tube (1), and the flange is slidably arranged in the slide groove (7) on one side thereof.

4. A sampling swab tube with biological culture function according to claim 3, characterized in that: The limiting assembly comprises an arc-shaped protrusion (8) fixed on the side of the flange away from the axis of the sampling tube (1); the arc-shaped protrusion (8) is elastic; an arc-shaped groove corresponding to the arc-shaped protrusion (8) is provided in the slide groove (7); and the arc-shaped protrusion (8) is clamped in the arc-shaped groove.

5. The method for operating the sampling swab tube with biological culture function according to claim 1, characterized in that: A culture medium is added to the sampling tube (1), and a swab head is placed into the culture medium in the sampling tube (1) and the swab head is broken off. At this time, the swab head is located in the culture medium in the sampling tube (1); the inner ring (10) is sealed and inserted into the upper end of the sampling tube (1), and the connecting sleeve (9) is rotated. After the connecting sleeve (9) is threadedly connected to the upper end of the sampling tube (1), the connecting sleeve (9), the inner ring (10) and the cover body (11) are rotated downward on the sampling tube (1). During the process, the space between the cover body (11), the connecting sleeve (9), the inner ring (10), the sampling tube (1) and the rubber protrusion (2) is compressed, the rubber protrusion (2) and the spherical support member (5) are deformed downward, and the fixed rod (4) drives the sliding plate (6) to slide downward. When the connecting sleeve (9) rotates downward to the right position, the middle part of the rubber protrusion (2) and the spherical support member (5) protrudes downward, and a plurality of hard rods (3) gather to squeeze the swab head, and the swab head is stabilized; when the culture medium in the sampling tube (1) needs to be removed, When pouring out, the cover body (11) is rotated, and after the cover body (11) is separated from the upper end of the connecting sleeve (9), the pressure inside and outside the sampling tube (1) is balanced. Since the spherical support member (5) and the rubber convex piece (2) are subjected to downward pressure, the middle parts of the spherical support member (5) and the rubber convex piece (2) can bulge downward and maintain this state. Therefore, after the cover body (11) is opened, the middle parts of the spherical support member (5) and the rubber convex piece (2) remain in a downward bulging state, preventing the swab head in the sampling tube (1) from being poured out when the culture liquid is poured out; when it is needed When the swab head is to be poured out from the sampling tube (1), the sampling tube (1) is inverted and the sampling tube (1) is aligned with the waste bucket up and down, and the sliding plate (6) is pushed downward by fingers. The sliding plate (6) causes the rubber protrusion (2) and the spherical support member (5) to deform downward through the fixing rod (4). When the middle of the spherical support member (5) and the rubber protrusion (2) are in a downward convex state, the multiple hard rods (3) disperse and release the swab head, and then the swab head can be discharged from the sampling tube (1) and fall into the waste bucket.

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