CN213388663U - Disposable multipurpose swab sampler - Google Patents

Abstract

The utility model discloses a disposable multi-purpose swab sampler. Comprises a liquid storage tube, a liquid culture medium or a reaction solution, a shaft sleeve component, a swab, a sheath component, a drip nozzle cover and a test tube. The pipe orifice of the liquid storage pipe is sleeved on the outer wall of one end of the rotating shaft in the shaft sleeve component, and a quantitative liquid culture medium or reaction solution is injected before the sleeve connection; one end of the rotating shaft is sleeved with the inner wall of the liquid storage pipe, and one end of the rotating sleeve is sleeved with the inner wall of the plastic pipe in the sheath component; one end of the swab rod is inserted into the rotating sleeve, one end of the swab head is arranged at the bottom of the sheath assembly and close to the drip nozzle, one end of the drip nozzle in the sheath assembly is inserted into the inner wall of the plastic pipe, the other end of the drip nozzle in the sheath assembly is tightly covered by the drip nozzle cover, and the test pipe is sleeved at one end of the drip nozzle of the sheath assembly. The disposable multi-purpose swab sampler integrates the functions of sampling, storing, transferring and sample preprocessing of manual and automatic detection of instruments, reduces the pollution in the steps of sample collection, storing and preprocessing, and improves the detection accuracy. The operation is simple and convenient, and the workload of medical staff is safely reduced.

Description

Disposable multipurpose swab sampler

Technical Field

The utility model relates to a biological sample sampling, storing, transporting and sample preprocessing device, in particular to a disposable multi-purpose swab sampler, which belongs to medical or biochemical analyzer.

Background

Currently, the disposable sampling swabs used in clinic generally need to transport culture medium to store samples for biological samples which have poor survival ability in air environment or need to survive under special conditions and have long time interval from sample collection to detection. The collection device of the prior sampling swab and culture medium or reaction solution split design has the following problems: the operation of transferring the sampling swab with the biological sample into a culture medium or a reaction solution is troublesome, and both the sampling swab and the reaction solution are easy to cause pollution when contacting with the outside in the transferring process, so that the final detection result is inaccurate. The utility model discloses mainly solve the problem of sampling, the storage of this type of sample. Be different from the collection system of sampling swab and culture medium or reaction solution components of a whole that can function independently design on the market, the utility model discloses sampling swab and transport culture medium design in same device, and can add culture medium or reaction solution in the closed environment in the sample, do not need the operation of inspection professional during the sample, easy and simple to handle and difficult pollution sample.

There are also swab samplers of the same type in the market, i.e. sampling swabs and collection devices designed integrally with culture media or reaction solutions, chinese patent publication no: CN 201376965Y, announcement day: 1, 6 days in 2010, the name of the utility model: the utility model discloses a disposable multi-purpose swab collector, its sampling swab also establishes as an organic whole with culture medium or reaction solution, the mouth of pipe seal cover of soft plastic flourishing liquid pipe connects on the outer wall of connecting fixed pipe one end, the cock stem that connects fixed pipe one end stretches into the inside of soft plastic flourishing liquid pipe, and the outer wall of connecting the fixed pipe other end cup joints with the sheath plastic pipe mutually, the swab pole of swab is the hollow body of rod, and swab pole one end on the swab is connected in the tube hole of fixed pipe, and swab head one end is directional the interior bottom of sheath plastic pipe. The sampling, transferring, storing and sample preprocessing functions are integrated, the pollution from the steps of collecting and storing the samples is reduced, the structure is simple, and the preparation is convenient and suitable for being popularized and used in hospitals and microorganism research units.

However, in the device, after sampling, a culture solution or a reaction solution is added to break the plug rod at one end of the connecting and fixing tube, a pushing force perpendicular to the plug rod needs to be applied, the plug rod is arranged in the sheath plastic tube, the sheath plastic tube is deformed under the same stress in the process of breaking the plug rod, the sheath plastic tube is thin-wall soft plastic, the plug rod is a hard plastic piece, and the fracture is sharp after breaking, if a user applies too much force to puncture the sheath plastic tube, hidden danger exists in use safety, and the broken plug rod floats in a culture medium or the reaction solution, so that the plug rod is visible to human eyes and has defects in use experience.

Disclosure of Invention

The utility model discloses a solve current swab collection system complex operation, use the problem of the aspect such as impression and security are poor, provide a convenient operation, detect the rate of accuracy height, safe and reliable's biological sampling swab.

The utility model discloses a technical scheme who adopts for reaching above-mentioned purpose does: a disposable multi-purpose swab sampler comprises a liquid storage pipe, a liquid culture medium or a reaction solution, a shaft sleeve assembly, a swab, a sheath assembly, a drip nozzle cover and a test tube, wherein a pipe orifice of the liquid storage pipe is sleeved with the outer wall of one end of a rotating shaft in the shaft sleeve assembly after the liquid storage pipe is injected into the liquid culture medium or the reaction solution, one end of a rotating sleeve in the shaft sleeve assembly is sleeved with one end of a plastic pipe in the sheath assembly, one end of a swab wiping rod is inserted into one end of the rotating sleeve, a swab head is arranged at the bottom of the sheath assembly and close to the drip nozzle, and the test tube is sleeved at the other end of the sheath assembly.

The liquid storage pipe is made of soft plastic materials, an annular inner conical surface and an arc buckle are arranged on the outer side of the pipe opening of the liquid storage pipe, when the liquid storage pipe is sleeved on the outer wall of one end of the rotating shaft, the annular inner conical surface is tightly attached to the annular conical surface of the rotating shaft, and the arc buckle is buckled into the annular groove of the rotating shaft.

The shaft sleeve assembly consists of a rotating shaft, a rotating sleeve and an O-shaped sealing rubber ring, and the rotating shaft and the rotating sleeve can rotate relatively after being assembled.

The outer wall of the rotating shaft is provided with a convex rib, an annular conical surface, an annular groove, an air hole, an annular buckling groove, an annular clamping groove, a positioning groove, an O-shaped ring groove, a hollow column, a limiting column and the like.

When the rotating shaft is sleeved with the liquid storage tube, the convex rib is tightly matched with the inner wall of the liquid storage tube, and the annular conical surface is tightly attached to the annular inner conical surface of the liquid storage tube.

The outer wall of the rotating shaft is provided with an annular groove for accommodating the sealing rubber ring, and the bottom of the annular groove is provided with air holes.

And an O-shaped sealing rubber ring is sleeved in the O-shaped sealing rubber ring of the rotating shaft and then assembled with the rotating sleeve, and the O-shaped sealing rubber ring is in full-circle contact with the inner wall of the rotating sleeve.

The hollow column of pivot is the cavity post and its root is glued thickly and is established between 0.3 millimeter to 0.6 millimeter, and the hollow column inserts in changeing the cover step hole after pivot and commentaries on classics cover assembly.

And the limiting column of the rotating shaft is inserted into the arc-shaped limiting groove of the rotating sleeve after being assembled.

The rotating sleeve is provided with a buckle, a sharp groove, a steering mark, a stepped hole, a through hole, a reinforcing rib, an arc-shaped limiting groove and a U-shaped groove.

The tip groove of the rotating sleeve is aligned with the positioning groove of the rotating sleeve when being assembled with the rotating shaft.

When the rotating sleeve is assembled with the rotating shaft, the buckle of the rotating sleeve is clamped into the annular clamping groove of the rotating shaft, so that the rotating shaft and the rotating sleeve are fixed in axial position, but can do relative rotation movement.

One end of the swab rod of the swab is fixed in a cavity formed by the reinforcing rib of the swivel sleeve.

The swab can adjust the material, length, rod diameter and material and size of the swab rod according to different sampling requirements.

The sheath component consists of a plastic pipe and a drip nozzle. The plastic pipe is characterized in that one end of the plastic pipe is inserted into a U-shaped groove of the rotating sleeve and is in tight fit, one end of the drip nozzle is inserted into the inner wall of one end of the plastic pipe, the plastic pipe and the drip nozzle are in interference fit, the other end of the plastic pipe is tightly closed by a drip nozzle cover, and the drip nozzle cover can be connected in a threaded connection or a fastening connection mode.

One end of the drip nozzle can also be designed into a hollow breakable structure, so that the drip nozzle cover is not required to be closed, external force can be applied to the broken groove when liquid is required to be dripped, the tail part is broken at the broken groove, the through hole is exposed, and the specimen solution can be extruded by extruding the liquid storage pipe or the plastic pipe.

The hollow breakable tail part at one end of the drip nozzle can be designed into a cover-shaped structure, and when the tail part is broken at the breaking groove, the cover-shaped structure separated after the breaking can be used for reversely rotating to tightly cover the drip nozzle.

The plastic tube can be made of plastic materials with different hardness and transparency according to different sampling requirements, and has different tube diameters and tube lengths so as to adapt to swabs with corresponding lengths and head diameters.

The test tube cup joints on the sheath subassembly, can adopt the plastic material that soft or hard degree, transparency are different according to the sampling demand of difference, also can change pipe diameter and pipe length as required.

The utility model discloses for prior art have following advantage: 1. the disposable multi-purpose swab sampler has a simple structure, integrates the functions of specimen collection and storage, and reduces the manufacturing cost. 2. The structural design of the sampling swab and the culture medium or the reaction solution is integrated, so that the pollution in the steps from specimen collection to specimen storage is reduced, and the detection accuracy is improved. 3. All parts adopt the sealed connection design, ensure that sample and culture medium or reaction solution do not contact with the outside in the transportation, storage process, have avoided the pollution in sampling and transportation. 4. The design is unique, the hollow column on the rotating shaft is hidden in the product and does not appear outside, and the hollow column penetrates through the upper cavity and the lower cavity of the sampler after being cut off in a mode of mutual rotation of the rotating shaft and the rotating sleeve, so that the use safety is higher, and the use feeling is better; the design of the exhaust hole which can exhaust but does not leak liquid solves the problem that the sample solution automatically flows without extrusion when the liquid drops are caused by the difference of the internal pressure and the external pressure of the same type of devices.

Drawings

Figure 1 shows a cross-sectional view of the present invention;

figure 2 shows a cross-sectional view of several embodiments of the present invention;

fig. 3 shows the structure of the present invention in an exploded view;

FIG. 4 shows an exploded view of the bushing assembly structure;

FIG. 5 shows a schematic view of the bushing assembly;

FIG. 6 shows a cross-sectional view of the hub assembly prior to sampling by the swab sampler;

FIG. 7 is a cross-sectional view of the structure of the shaft sleeve assembly after the swab sampler has been used to sample, the shaft and the rotating sleeve being rotated into position relative to each other to squeeze the liquid storage solution to extrude the culture medium or reaction solution;

fig. 8 shows an explanation of the operation steps of how the sampler is used for sampling, storing and preprocessing.

In the figure: the liquid storage tube 1, the tube opening 11, the annular inner conical surface 12, the arc-shaped buckle 13, the liquid culture medium or the reaction solution 2, the shaft sleeve component 3, the rotating shaft 31, the rotating sleeve 32, the O-shaped sealing rubber ring 33, the convex rib 310, the annular conical surface 311, the annular groove 312, the air hole 313, the annular buckle groove 314, the annular clamping groove 315, the positioning groove 316, the O-shaped ring groove 317, the hollow column 318, the limiting column 319, the buckle 321, the sharp groove 322, the turning mark 323, the stepped hole 324, the through hole 325, the reinforcing rib 326, the arc-shaped limiting groove 327, the U-shaped groove 328, the swab 4, the swab head 41, the swab rod 42, the sheath component 5, the plastic tube 51, the dropper 52, the breaking groove 521, the dropper cover 6 and the test tube 7.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments. It should be understood that these examples are for illustrative purposes only and are not to be construed as limiting the invention in any way.

Example 1:

the disposable multi-purpose swab sampler shown in fig. 1 and 3 is composed of a liquid storage tube (1), a liquid culture medium or reaction solution (2), a shaft sleeve component (3), a swab (4), a sheath component (5), a drip nozzle cover (6) and a test tube (7). A pipe orifice (11) of the liquid storage pipe (1) is sleeved with the outer wall of one end of a rotating shaft (31) in a shaft sleeve assembly (3) after a liquid culture medium or a reaction solution (2) is injected into the liquid storage pipe (1), one end of a rotating sleeve (32) in the shaft sleeve assembly (3) is sleeved with one end of a plastic pipe (51) in a sheath assembly (5), one end of a swab rod (42) of the swab (4) is inserted into one end of the rotating sleeve (32), a swab head (41) is arranged at the bottom of the sheath assembly (5) and close to a drip nozzle (52), and the test tube (7) is sleeved at the other end of the sheath assembly (5).

The liquid storage tube (1) is made of soft plastic materials, an annular inner conical surface (12) and an arc-shaped buckle (13) are arranged on the outward side of the tube opening (11), when the liquid storage tube (1) is sleeved on the outer wall of one end of the rotating shaft (31), the annular inner conical surface (12) is tightly attached to the annular conical surface (311) of the rotating shaft (31), and the arc-shaped buckle (13) is buckled into the annular buckle groove (314) of the rotating shaft (31).

As shown in fig. 3 and 4, the shaft sleeve assembly (3) is composed of a rotating shaft (31), a rotating sleeve (32) and an O-shaped sealing rubber ring (33), and the rotating shaft (31) and the rotating sleeve (32) can rotate relatively after being assembled. The outer wall of the rotating shaft (31) is provided with a convex rib (310), an annular conical surface (311), an annular groove (312), an air hole (313), an annular buckling groove (314), an annular clamping groove (315), a positioning groove (316), an O-shaped ring groove (317), a hollow column (318) and a limiting column (319). When the rotating shaft (31) is sleeved with the liquid storage tube (1), the convex rib (310) is tightly matched with the inner wall of the liquid storage tube (1), and the annular outer conical surface (311) is tightly attached to the annular inner conical surface (12) of the liquid storage tube (1). The effect of mutual sealing of the two can be achieved, so that the liquid culture medium or the reaction solution (2) added into the liquid storage pipe (1) can be stored and transported in a sealing way.

The outer wall of the rotating shaft (31) is provided with an annular groove (312) for accommodating the O-shaped sealing rubber ring (33), and the bottom of the annular groove (312) is provided with a vent hole (313). And the annular groove (312) is sleeved with an O-shaped sealing rubber ring (33), and then the air vent is sealed by the rubber ring. When the shaft sleeve component (3) and the liquid storage pipe (1) containing the liquid culture medium or the reaction solution (2) are sleeved and assembled, the air holes (33) can discharge redundant air, so that the assembly is facilitated. In addition, the air holes are sealed by rubber rings, liquid culture medium or reaction solution is not easy to leak, but air pressed in during the sleeving process can be slowly discharged, so that the air pressure of a cavity formed by the liquid storage tube (1) and the rotating shaft (31) is consistent with the outside. Therefore, in the using process of the product, after the internal closed cavity is opened, the sample solution does not flow automatically due to the internal and external pressure difference because the internal and external air pressures are consistent, and the biological safety of the product is improved.

An O-shaped ring groove (317) of the rotating shaft (31) is sleeved with an O-shaped sealing rubber ring (33) and then assembled with the rotating sleeve (32), and the O-shaped sealing rubber ring is in full circle contact with the inner wall of the rotating sleeve. After the rotating shaft (31) and the rotating sleeve (32) rotate relatively, the hollow column (318) is broken at the root of the thin wall, and the liquid storage pipe (1) is extruded to enable the liquid culture medium or the reaction solution (2) to be directly injected into the plastic pipe (51) through the split hole and the through hole (325) on the rotating sleeve (32), so that the liquid culture medium or the reaction solution (2) cannot overflow from a gap formed by the rotating shaft (31) and the rotating sleeve (32) due to the sealing effect of the O-shaped sealing rubber ring (33) in the operation process.

The hollow column (318) of the rotating shaft (31) is a hollow column, the glue thickness of the root part of the hollow column is set between 0.3 mm and 0.6 mm, and the hollow column (318) is inserted into the step hole (324) of the rotating sleeve (32) after the rotating shaft (31) and the rotating sleeve (32) are assembled. When the rotating shaft (31) and the rotating sleeve (32) rotate relatively, the hollow column (318) is pressed by the hole wall of the stepped hole (324), so that the hollow column (318) is broken at the root part thereof, and the split is aligned with the through hole (325) of the rotating sleeve (32) when the rotating shaft (31) and the rotating sleeve (32) rotate relatively to a set position.

The limiting column (319) of the rotating shaft (31) is inserted into the arc-shaped limiting groove (327) of the rotating sleeve after being assembled. The cylindrical groove structure can limit the relative rotation of the rotating shaft (31) and the rotating sleeve (32) within a certain angle range.

The rotating sleeve (32) is provided with a buckle (321), a sharp groove (322), a steering mark (323), a stepped hole (324), a through hole (325), a reinforcing rib (326), an arc-shaped limiting groove (327) and a U-shaped groove (328).

The tip groove (322) of the rotary sleeve (32) is aligned with the positioning groove (316) thereof when assembled with the rotary shaft (31).

When the buckle (321) of the rotating sleeve (32) is assembled with the rotating shaft (31), the buckle is clamped into the annular clamping groove (315) of the rotating shaft (31), so that the axial positions of the rotating shaft (31) and the rotating sleeve (32) are fixed, but the rotating shaft (31) and the rotating sleeve (32) can do relative rotation movement.

One end of the swab rod (32) of the swab (3) is fixed in a cavity formed by the reinforcing rib (326) of the swivel sleeve (32). According to different sampling requirements, the material, length and diameter of the swab rod (32) and the material and size of the swab head (31) can be adjusted correspondingly.

The sheath component (5) consists of a plastic pipe (51) and a drip nozzle (52). Mould in pipe (51) one end inserts U-shaped groove (328) of changeing cover (32) and for the tight fit, drip mouth (52) one end and insert and mould pipe (51) one end inner wall, and the two is interference fit, and the other end is covered tightly airtightly with drip mouth lid (6), and drip mouth (52) and drip mouth lid (6) connected mode can use threaded connection or lock joint.

The plastic tube (51) can be made of plastic materials with different hardness and transparency according to different sampling requirements, and different tube diameters and tube lengths are adopted to adapt swabs with corresponding lengths and head diameters.

One end of the dripping nozzle (52) can also be a hollow breakable structure, so that the dripping nozzle cover (6) is not needed to be closed, external force can be applied to the broken groove (521) when liquid is required to drip, the tail part is broken, the through hole is exposed, and the specimen solution can be extruded to carriers such as a detection card, a test tube and the like by extruding the liquid storage tube (1) or the plastic tube (51) for inspection.

The breakable tail of the end of the nozzle (52) can also be designed into a cover type (522) structure in fig. 2, so that the nozzle can be tightly covered by the broken cover type (522) after being broken at the breaking groove (521).

Test tube (7) cup joint on sheath subassembly (5), can adopt the plastic material that soft or hard degree, transparency are different according to the sampling demand of difference, also can change pipe diameter and pipe length as required.

The utility model discloses the application method is shown in figure 8: 1. selecting a disposable multi-purpose swab sampler for storing corresponding culture medium or reaction solution according to the detection requirement of the biological sample.

2. When sampling, the sheath component (5) and the test tube (7) are firstly pulled out from the sleeve (32), a swab head (41) is used for collecting samples, and the sheath component (5) is sleeved back to the sleeve (32) immediately after sampling.

3. The swab head (41) faces downwards, the rotating shaft (31) and the rotating sleeve (32) are twisted to enable the rotating shaft (31) and the rotating sleeve (32) to rotate relatively to a set position, and then the hollow column (318) on the rotating shaft (31) is broken to form a crack hole. The liquid storage tube (1) is extruded to enable the liquid culture medium or the reaction solution (2) to flow into the inner cavity of the sheath component (5) through the split hole, the through hole (325) and the step hole (324) on the rotating shaft (31), the sampler is shaken or the outer wall of the bottom of the plastic tube (51) is extruded to enable the swab head (41) to be stressed, and the sample adhered to the swab head (41) can be fully eluted.

4. And (3) unscrewing a drip nozzle cover (6), and extruding the liquid storage pipe (1) or the plastic pipe (51) to extrude the sample solution into the carrier to be detected.

When in use, attention is required: the sheath component (5) can not be pulled out before sampling operation; the sheath assembly (5) should be pulled back into the cannula (32) immediately after sampling to prevent contamination.

Example 2:

the disposable multi-use swab sampler as shown in fig. 2 has the same features as in example 1 except for the following features: one end of the drip nozzle (52) can also be provided with a hollow breakable structure, so that the drip nozzle can be sealed without a drip nozzle cover (6), and when liquid needs to be dripped, external force can be applied to the broken groove (521) of the drip nozzle to break the tail part. After the through hole is exposed, the liquid storage tube (1) or the plastic tube (51) can be squeezed to enable the sample solution to flow out.

Example 3: the disposable multi-use swab sampler as shown in fig. 2 has the same features as in example 1 except for the following features: the hollow breakable tail part at one end of the drip nozzle (52) can be designed into a cap-shaped structure (522) shown in figure 2, and when the tail part is broken at the breaking groove (521), the cap-shaped structure (522) separated after the breaking can be used for reversely turning to tightly cover the drip nozzle.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the claims of the present invention cannot be limited to these embodiments, and any other modifications or equivalent replacement modes that do not depart from the technical solution of the present invention are all included in the scope of the present invention.

Claims (6)

1. Disposable multi-purpose swab sample thief comprises liquid storage pipe (1), liquid culture medium or reaction solution (2), axle sleeve subassembly (3), swab (4), sheath subassembly (5), drip nozzle lid (6), test tube (7), its characterized in that: the liquid storage tube (1) is filled with a liquid culture medium or a reaction solution (2), a tube opening (11) of the liquid storage tube is sleeved with the outer wall of one end of a rotating shaft (31) in a shaft sleeve component (3), one end of a rotating sleeve (32) in the shaft sleeve component (3) is sleeved with one end of a plastic tube (51) in a sheath component (5), one end of a swab rod (42) of the swab (4) is inserted into one end of the rotating sleeve (32), a swab head (41) of the swab head is arranged at the bottom of the sheath component (5) and is close to a drip nozzle (52), and the test tube (7) is sleeved at the other end of the sheath component (5).

2. The disposable multi-use swab sampler of claim 1, wherein: the liquid storage pipe (1) is made of soft plastic materials, an annular inner conical surface (12) and an arc buckle (13) are arranged on the outer side of the pipe orifice (11) of the liquid storage pipe, when the liquid storage pipe (1) is sleeved on the outer wall of one end of the rotating shaft (31), the annular inner conical surface (12) is tightly attached to an annular conical surface (311) of the rotating shaft (31), and the arc buckle (13) is buckled into an annular buckle groove (314) of the rotating shaft (31).

3. The disposable multi-use swab sampler of claim 1, wherein: the shaft sleeve assembly (3) consists of a rotating shaft (31), a rotating sleeve (32) and an O-shaped sealing rubber ring (33), and the rotating shaft (31) and the rotating sleeve (32) can rotate relatively after being assembled;

the outer wall of the rotating shaft (31) is provided with a convex rib (310), an annular conical surface (311), an annular groove (312), an air hole (313), an annular buckle groove (314), an annular clamping groove (315), a positioning groove (316), an O-shaped ring groove (317), a hollow column (318) and a limiting column (319);

when the rotating shaft (31) is sleeved with the liquid storage pipe (1), the convex rib (310) is tightly matched with the inner wall of the liquid storage pipe (1), and the annular conical surface (311) is tightly attached to the annular inner conical surface (12) of the liquid storage pipe (1);

an annular groove (312) for accommodating the O-shaped sealing rubber ring (33) is formed in the outer wall of the rotating shaft (31), and air holes (313) are formed in the bottom of the annular groove (312);

an O-shaped ring groove (317) of the rotating shaft (31) is sleeved with an O-shaped sealing rubber ring (33) and then assembled with the rotating sleeve (32), and the O-shaped sealing rubber ring is in full-circle contact with the inner wall of the rotating sleeve;

the hollow column (318) of the rotating shaft (31) is a hollow column, and after the rotating shaft (31) and the rotating sleeve (32) are assembled, the hollow column (318) is inserted into the stepped hole (324) of the rotating sleeve (32);

the limiting column (319) of the rotating shaft (31) is inserted into the arc-shaped limiting groove (327) of the rotating sleeve after being assembled;

the rotating sleeve (32) is provided with a buckle (321), a sharp groove (322), a steering mark (323), a step hole (324), a through hole (325), a reinforcing rib (326), an arc limiting groove (327) and a U-shaped groove (328);

the sharp groove (322) of the rotating sleeve (32) is aligned with the positioning groove (316) of the rotating sleeve when being assembled with the rotating shaft (31);

when the buckle (321) of the rotating sleeve (32) is assembled with the rotating shaft (31), the buckle is clamped into the annular clamping groove (315) of the rotating shaft (31), so that the axial positions of the rotating shaft (31) and the rotating sleeve (32) are fixed, but the rotating shaft (31) and the rotating sleeve (32) can do relative rotation movement.

4. The disposable multi-use swab sampler of claim 1, wherein: one end of the swab rod (42) of the swab (4) is fixed in a cavity formed by the reinforcing rib (326) of the rotary sleeve (32);

the swab (4) can adjust the material, length and diameter of the swab rod (42) and the material and size of the swab head (41) according to different sampling requirements.

5. The disposable multi-use swab sampler of claim 1, wherein: the sheath component (5) consists of a plastic pipe (51) and a drip nozzle (52); one end of the plastic pipe (51) is inserted into the U-shaped groove (328) of the rotating sleeve (32) and is in tight fit, one end of the drip nozzle (52) is inserted into the inner wall of one end of the plastic pipe (51) and is in interference fit with the inner wall, the other end of the drip nozzle is tightly closed by a drip nozzle cover (6), and the drip nozzle (52) and the drip nozzle cover (6) can be connected in a threaded connection or buckled connection mode;

one end of the drip nozzle (52) can also be provided with a hollow breakable structure, so that the drip nozzle cover (6) is not needed to be closed, external force can be applied to the broken groove (521) when liquid is required to drip, the tail part is broken, the through hole is exposed, and the specimen solution can be extruded by extruding the liquid storage tube (1) or the plastic tube (51);

the hollow breakable tail part at one end of the drip nozzle (52) can be set to be a cover-shaped structure (522), and after the tail part is broken at the breaking groove (521), the drip nozzle can be covered tightly by reversing the cover-shaped structure (522) separated after breaking;

the plastic tube (51) can be made of plastic materials with different hardness and transparency according to different sampling requirements, and different tube diameters and tube lengths are adopted to adapt swabs with corresponding lengths and head diameters.

6. The disposable multi-use swab sampler of claim 1, wherein: test tube (7) cup joint on sheath subassembly (5), can adopt the plastic material that soft or hard degree, transparency are different according to the sampling demand of difference, also can change pipe diameter and pipe length as required.

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