CN213301736U - Sample collection device - Google Patents

Abstract

A sample collection device comprises a sampling structure, a hollow main body tube and a preservation tube for storing reagents, wherein one end of the main body tube is connected to an opening part of the preservation tube; the sampling structure comprises a main body tube and a sampling part, wherein the main body tube is provided with a hollow channel, the sampling part can penetrate through the hollow channel of the main body tube and break through the first soft part to enter the inner cavity of the storage tube. The storage tube is combined with the sampling device, the sample can be dissolved after sampling without dissolving the sample in a special experiment, and the operation convenience is improved.

Description

Sample collection device

Technical Field

The utility model relates to a sample collection utensil field, concretely relates to sample collection device.

Background

In the fields of biochemical detection, medical detection and the like, qualitative and quantitative detection of a sample is generally required. For example, in the case of detection analysis of semi-solid samples such as feces and wet soil, it is usually necessary to collect the sample and then dissolve the sample in the treatment solution. The existing collecting device is unreasonable in structural design, and after independent sampling, the sample needs to be dissolved in the environment such as a laboratory, so that the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sample collecting device.

One embodiment provides a sample collection device, which comprises a sampling structure, a hollow main tube and a preservation tube for storing reagents, wherein one end of the main tube is connected to the opening part of the preservation tube; the sampling structure comprises a main body tube and a sampling part, wherein the main body tube is provided with a hollow channel, the sampling part can penetrate through the hollow channel of the main body tube and break through the first soft part to enter the inner cavity of the storage tube.

Optionally, the first soft member has a first through hole through which the sampling portion of the sampling structure can pass, and the sampling portion of the sampling structure enters the inner cavity of the holding tube from the first through hole.

Alternatively, the first soft material may be fitted to an opening of the storage tube.

Optionally, a boss for placing the first soft component is arranged in the main pipe.

Optionally, the sampling structure further comprises a membrane for closing the opening of the storage tube, and the sampling part of the sampling structure can sequentially penetrate through the hollow channel of the main tube and the first soft piece and then penetrate through the membrane to enter the inner cavity of the storage tube.

Optionally, still include the awl structure, the awl structure has the saddle, one side of saddle is equipped with can pass the first arch of first soft spare, the sampling portion of sampling structure support lean on extremely the saddle and promote the awl structure removes to the save pipe direction, first arch passes first soft spare and enters into the inner chamber of save pipe.

Optionally, a blocking piece capable of blocking the rotation of the prick structure is arranged on the inner wall of the storage tube, and when the sampling part of the sampling structure enters the inner cavity of the storage tube and rotates, the blocking piece blocks the first protrusion to prevent the rotation of the prick structure.

Optionally, the opposite side of saddle is equipped with the second arch, the bellied lateral wall of second is equipped with the stirring arch that is used for stirring the sample, the bottom of sampling portion support lean on extremely when the upper surface of saddle, the second is protruding to be followed the bottom opening of sampling portion penetrates in the cavity intracavity that has the sample in the sampling portion, when the sampling portion was rotatory, the protruding stirring of stirring sample in the cavity intracavity of sampling portion.

Optionally, one end of the second protrusion and/or the stirring protrusion, which is far away from the saddle, is a prick tip.

Optionally, a limiting member surrounding the second protrusion is disposed on the pallet, and the bottom of the sampling portion can pass through a space between the second protrusion and the limiting member and abut against the upper surface of the pallet.

Optionally, the first protrusion is provided with at least one stop protrusion that can be stopped by a stop member on an inner wall of the storage tube.

Optionally, one end of the stop protrusion facing the bottom of the storage tube is a prick tip.

Optionally, a groove corresponding to the first through hole of the first soft component is formed on the stop protrusion.

Optionally, the sampling structure comprises a sampling rod, the sampling part is hollow and tubular, one end of the sampling part is connected to the sampling rod, and the other end of the sampling part is open.

Optionally, the side wall of the sampling part is provided with at least one hollow hole.

Optionally, a clamping table capable of plugging the first through hole of the first soft part is arranged on the sampling rod.

Optionally, the clamping platform is in an inverted cone shape, and the diameter of the cross section of the clamping platform is gradually reduced from top to bottom.

Optionally, a tube cover is also included that is connectable to the other end of the main tube.

Optionally, the tube cover has a limiting through hole for insertion of a sampling rod.

Optionally, be equipped with at least one first spacing arch on the sampling rod, be equipped with on the tube cap with spacing through-hole intercommunication just can supply the spacing recess that first spacing arch on the sampling rod passes through.

Optionally, the side wall of the sampling rod is provided with a second limiting protrusion, and the second limiting protrusion is located below the first limiting protrusion.

Optionally, when the second limiting protrusion abuts against the lower surface of the pipe cover, the clamping table is separated from the first through hole of the first soft part.

Optionally, the top of the sampling rod is provided with a flat structure.

Optionally, the sampling rod is provided with anti-skid lines.

Optionally, still include the soft piece of second, the soft piece of second is located the top of the soft piece of first, the soft piece of second has the second through-hole that supplies the awl structure to pass, the sampling portion of sampling structure promotes the awl structure and passes the soft piece of second, the soft piece of first in proper order, then gets into the save tube.

Optionally, the diameter of the second through hole is smaller than the maximum diameter of the sampling part of the sampling structure, and when the sampling part passes through the second soft part, the upper surface of the second soft part can scrape off the excessive sample on the outer wall of the sampling part.

Optionally, the second soft component has a plurality of strip-shaped slits in communication with the second through-holes.

Optionally, the strip-shaped slit surrounds the second through hole.

Optionally, the stabbing structure is embedded on the second soft component.

Optionally, the holding tube is provided with a liquid outlet portion for releasing liquid and a tube cap capable of sealing the liquid outlet portion.

Optionally, the device further comprises an inner tube located in the main body tube, and a second soft part and a first soft part are sequentially arranged below the inner tube.

Optionally, the stabbing structure is embedded on the second soft component.

Optionally, the inner wall of the inner tube is provided with at least two limiting convex ridges, and the outer edge and/or the outer wall of the sampling part of the sampling structure abut against the limiting convex ridges and move downwards.

Optionally, the spacing protruding stupefied lower part and the bottom edge of inner tube have the space that is used for placing first soft spare, the soft spare of second between, and first soft spare, the soft spare of second stack from bottom to top in proper order on the boss of main part pipe inner wall, the spacing protruding stupefied bottom and the partial edge contact of the soft spare upper surface of second.

Optionally, the upper end of the limiting convex edge is provided with an inclined surface, and the height of the limiting convex edge is gradually increased from top to bottom.

Optionally, the sample collected by the sampling portion of the sampling structure is a semi-solid sample.

Optionally, the sample collected by the sampling portion of the sampling structure is a sample having a viscosity.

According to the sample collection device of above-mentioned embodiment, combine save pipe and sampling device, need not to carry out the sample and dissolve in special experiment, can carry out the sample after the sampling and dissolve, improve convenient operation nature.

Drawings

FIG. 1 is a schematic diagram of a sample collection device according to an exemplary embodiment;

FIG. 2 is an exploded view of a sample collection device according to one embodiment;

FIG. 3 is a schematic diagram of a sampling structure according to an embodiment;

FIG. 4 is a schematic structural view of a main tube according to an embodiment;

FIG. 5 is a schematic structural view of an inner tube according to an embodiment;

FIG. 6 is a schematic view showing a structure of a second soft material according to an example;

FIG. 7 is a schematic view showing another structure of the second soft material according to an embodiment;

FIG. 8 is a schematic view showing the structure of a first soft material according to an embodiment;

FIG. 9 is a schematic view showing another structure of the first soft material according to an embodiment;

FIG. 10 is a schematic diagram of an embodiment of a bur structure;

FIG. 11 is a schematic view of another embodiment of the stabbing structure;

FIG. 12 is a schematic view of the structure of a storage tube according to an embodiment;

FIG. 13 is another schematic view of the storage tube according to an embodiment;

FIG. 14 is another schematic view of the storage tube according to an embodiment;

fig. 15 is a schematic structural view of a cap according to an embodiment.

Description of reference numerals:

1. a sampling structure; 11. a sampling rod; 12. clamping a platform; 121. a through hole; 122. a bevel; 13. a sampling section; 14. hollowing out holes; 15. anti-skid lines; 16. a flat structure; 17. a first limit protrusion; 18. a second limit bulge; 2. a tube cover; 21. a limiting through hole; 22. a limiting groove; 3. a main body tube; 31. a boss; 4. preserving the tube; 41. a pipe cap; 42. an inner cavity; 43. a blocking member; 44. a liquid outlet part; 45. a film; 5. an inner tube; 51. limiting convex edges; 52. an inclined surface; 6. a first soft member; 61. a first through hole; 62. an annular portion; 7. a prick structure; 71. a saddle; 72. a first protrusion; 73. stopping bulges; 731. a groove; 74. a second protrusion; 75. stirring the bulges; 76. a limiting member; 8. a second soft member; 81. a second through hole; 82. a strip seam.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

In one embodiment, a sample collection device is provided, as shown in fig. 1 and 2, comprising a sampling structure 1, a hollow main tube 3, a holding tube 4 for storing a reagent, one end of the main tube 3 being connected to an opening portion of the holding tube 4; the sampling structure also comprises a first soft piece 6 capable of sealing the opening part of the preservation pipe 4, and the sampling part 13 of the sampling structure 1 can penetrate through the hollow channel of the main body pipe 3 and the first soft piece 6 to enter the inner cavity of the preservation pipe 4. The first soft part 6 plays a role in sealing the preservation tube 4 before sample introduction, so that the reagent in the preservation tube is prevented from overflowing, the sampling part 13 can puncture the first soft part 6 and enter the preservation tube 4, so that a sample on the sampling part 13 is immersed in the liquid in the preservation tube 4, and a sample liquid is obtained after the sample is dissolved. The storage tube is combined with the sampling device, the sample can be dissolved after sampling without dissolving the sample in a special experiment, and the operation convenience is improved. The sample collected by the sampling structure 1 may be a semi-solid sample such as feces, wet soil, etc., and the fluid in the holding tube 4 may include, but is not limited to, at least one of a feces sample preservation fluid, a feces sample pretreatment fluid, a soil sample preservation fluid, a soil sample pretreatment fluid, etc. The sampling structure 1, the main body tube 3 and the preservation tube 4 form a complete set of product, and the carrying is convenient. The bottom of the sampling part 13 may be in a shape of a prick for piercing the first soft material 6, and when the sampling part 13 penetrates the first soft material 6, the upper surface of the first soft material 6 may also scrape off an excessive sample on the outer wall of the sampling part 13.

In one embodiment, as shown in fig. 8 and 9, the first soft material 6 has a first through hole 61 through which the sampling part 13 of the sampling structure 1 can pass, and the sampling part 13 of the sampling structure 1 enters the inner cavity of the storage tube 4 through the first through hole 61. First soft piece 6 has certain elasticity, and the diameter of first through-hole 61 can be less than the diameter of sampling portion 13, and when sampling portion 13 inserted first through-hole 61, first soft piece 6 produced certain deformation, and first through-hole 61 grow for the outer wall of sampling portion 13 can be hugged closely to the lateral wall of sampling portion 13, and it is excessive to reduce the liquid in the save tube 4, and then the pollution abatement.

In one embodiment, the first soft material 6 is sleeved on the opening of the storage tube 4. First soft material 6 can be circular to can set up annular portion 62 at the edge of circular first soft material 6, the diameter of annular portion 62 slightly is less than the opening outer wall diameter of preservation pipe 4, and first soft material 6 can overlap the opening of locating preservation pipe 4, also can be through modes such as bonding, bonds circular first soft material 6 to the inner wall or the upside of the opening of preservation pipe 4. The material of the first soft material 6 may include, but is not limited to, at least one of Nitrile Butadiene Rubber (NBR), Natural Rubber (NR), Styrene Butadiene Rubber (SBR), Butadiene Rubber (BR), and the like.

In one embodiment, further comprising a membrane 45 for closing the opening of the storage tube 4, the sampling portion 13 of the sampling structure 1 can sequentially pass through the hollow channel of the main tube 3, the first soft material 6 located above or on the upper surface of the membrane 45, and then penetrate through the membrane 45 at the opening of the storage tube 4 and enter the inner cavity of the storage tube 4. The film 45 serves to seal the opening of the storage tube 4 before sample introduction, and the problem of liquid leakage caused by poor sealing performance of the first soft member 6 can be avoided. If the first soft material 6 is provided with the first through hole 61, the membrane 45 at the opening of the storage tube 4 can also play a role of sealing before sample introduction, so that the liquid in the storage tube 4 is prevented from overflowing from the first through hole 61 due to the inclination, inversion and the like of the device in the whole transfer process of the device.

In an embodiment, as shown in fig. 2, 10, and 11, the liquid sampler further includes a pricker structure 7, the pricker structure 7 has a support 71, a first protrusion 72 capable of passing through the first soft material 6 is disposed on one side of the support 71, the sampling portion 13 of the sampling structure 1 abuts against the support 7 and pushes the pricker structure to move toward the storage tube 4, and the first protrusion 72 passes through the first soft material 6 and enters the inner cavity of the storage tube 4, so that the sample on the sampling portion 13 is immersed in the liquid in the storage tube 4. First protrusion 72 serves to guide prick structure 7 and sampling portion 13 through first soft component 6. The saddle 71 may have a circular sheet-like structure, such as a guide without the first protrusion 72, which is difficult to break through the first soft material 6. The diameter of the pallet 71 is generally larger than the diameter of the sampling part 13 and smaller than the inner diameter of the main tube 3 so that the bottom of the sampling part 13 can abut to the upper surface of the pallet 71.

In one embodiment, as shown in fig. 14, the inner wall of the storage tube 4 is provided with a blocking member 43 capable of blocking the rotation of the pricker structure 7, and when the sampling part 13 of the sampling structure 1 enters the inner cavity of the storage tube 4 and rotates, the blocking member 43 stops the first protrusion 72 to prevent the pricker structure 1 from rotating. The first protrusion 72 may be a sheet structure, a spike structure is disposed at a lower portion of the first protrusion 72, specifically, the first protrusion 72 may be triangular, a spike end of the first protrusion may guide the spike structure 7 to pass through the first software component 6, when the first protrusion 72 enters the inner cavity of the storage tube 4, an operator rotates the sampling rod 11, so that when the sampling portion 13 rotates along with the first protrusion, the sample on the sampling portion 13 is adhered to the spike structure 7, which may drive the spike structure 7 to rotate, so that the sample in the sampling portion 13 cannot be smoothly separated and dissolved into the liquid, and due to the existence of the blocking member 43, when the first protrusion 72 rotating along with the spike structure 7 rotates to contact with the blocking member 43, the blocking member 43 blocks the first protrusion 72, so that the entire spike structure 7 cannot continue to rotate, and the sample adhered in the sampling portion 13 is separated from the solution and sufficiently dissolved.

In an embodiment, as shown in fig. 10 and 11, a second protrusion 74 is disposed on the other side of the tray table 71, a stirring protrusion 75 is disposed on a side wall of the second protrusion 74, when the bottom of the sampling portion 13 abuts against the upper surface of the tray table 71, the second protrusion 74 and the stirring protrusion 75 penetrate into the hollow cavity of the sampling portion 13, in which the sample is collected, from the bottom opening of the sampling portion 13, and when the sampling portion 13 rotates, the stirring protrusion 75 stirs the sample in the hollow cavity of the sampling portion 13. When awl thorn structure 7 and sampling portion 13 dip in the liquid of holding tube 4, the staff rotates sampling rod 11, and sampling portion 13 rotates along with it, because awl thorn structure 7 stops by the piece 43 card that keeps the 4 inner walls of holding tube, and awl structure 7 no longer rotates, and stirring bulge 75 plays the stirring effect to the sample in the cavity intracavity of sampling portion 13, makes the sample drop from sampling portion 13, in the entering liquid, realizes dissolving of sample. The number of the stirring protrusions 75 may be 1, 2, 3 or more, in an embodiment, the stirring protrusions 75 are sheet-shaped, 4 stirring protrusions 75 are disposed on the side wall of the second protrusion 74, and two adjacent stirring protrusions 75 are perpendicular to each other, so as to achieve a good stirring effect. In an embodiment, the second protrusion may be a cylinder, and a plurality of scattered stirring protrusions 75 are disposed on the cylinder, and the specific shape of the stirring protrusions 75 is not limited, and may be various shapes such as a sheet, a rod, a cone, and the like, and may have a structure capable of stirring the sample in the sampling portion 13.

In one embodiment, the second protrusion 74 and/or the stirring protrusion 75 has a prick tip at an end away from the tray 71, and the prick tip can be pricked into the sample in the hollow chamber of the sampling portion 13, so as to reduce the resistance of the sample to the second protrusion 74 and the stirring protrusion 75.

In an embodiment, as shown in fig. 10 and 11, one end of the stirring protrusion 75 away from the tray 71 is a prick tip, which can be pricked into the sample in the hollow chamber of the sampling part 13, so as to reduce the resistance of the sample to the second protrusion 74 and the stirring protrusion 75, and facilitate a worker to smoothly insert the sampling part 13 adhered with the sample into the prick structure 7, so that the sampling part 13 abuts against the upper surface of the tray 71. In one embodiment, when the stirring protrusions 75 are scattered on the outer wall of the second protrusion 74, the end of the second protrusion 74 away from the supporting platform 71 is a prick tip, so as to easily prick into the sample in the hollow chamber of the sampling part 13,

in an embodiment, as shown in fig. 10 and 11, a limiting member 76 surrounding the second protrusion 74 is disposed on the tray table 71, the bottom of the sampling portion 13 can pass through a space between the second protrusion 71 and the limiting member 76 and abut against the upper surface of the tray table 71, the limiting member 76 is fixed on the tray table 71, the limiting member 76 can be annular or can be a plurality of independent components, each component surrounds the periphery of the second protrusion 74, so that when the bottom of the sampling portion 13 abuts against the upper surface of the tray table 71, the limiting member 76 limits the outer wall of the sampling portion 13, and the bottom of the sampling portion 13 is prevented from sliding out of the tray table 71, which causes the inclination of the prick structure 7 when moving downward.

In an embodiment, as shown in fig. 10 and 11, the first protrusion 72 is provided with at least one stop protrusion 73 that can be stopped by the blocking member 43 on the inner wall of the storage tube 4, the stop protrusion 73 may be a sheet-like structure, and the number of the stop protrusions 73 may be 1, 2, 3 or more. In one embodiment, the sidewall of the first protrusion 72 is provided with 4 stop protrusions 73, which can achieve a good stopping function.

In one embodiment, as shown in fig. 10 and 11, the stop protrusion 73 has a piercing tip toward the bottom of the storage tube 4, and the piercing tip can guide the piercing structure 7 through the second soft material 8 and the first soft material 6. The stop protrusion 73 may be a triangular plate-shaped structure, and the width of the stop protrusion 73 is gradually reduced from top to bottom, so as to facilitate passing through the second soft component 8 and the first soft component 6.

In an embodiment, as shown in fig. 10 and 11, the stopping protrusion 73 is provided with a groove 731 corresponding to the first through hole of the first soft material 6, the groove 731 can be located in the middle of the stopping protrusion 73, the tip of the stop protrusion 73 is located below the groove 731, each of the four stopping protrusions 73 is provided with the groove 731, the four grooves 731 are located in the same horizontal position to form a concave space, when the tip of the stop protrusion 73 passes through the first through hole 61 of the first soft material 6, the first through hole 61 is deformed to a certain extent, after the tip of the taper protrusion passes through the first through hole 61, the concave space formed by the four grooves 731 and the first through hole 61 are located in the same horizontal position, and the first through hole 61 is not squeezed any more, the first through hole 61 is restored to a normal shape, the upper portion of the groove 731 can be an inclined surface, the inclined surface contacts with the first through hole 61, and the first through hole 61 is not deformed without being pressed by an external force, therefore, the first through hole 61 is not in the extrusion state for a long time before sample introduction, and the phenomenon that the first through hole is difficult to recover to the original form due to the extrusion of the prick structure 7 for a long time is avoided.

In one embodiment, as shown in fig. 3, the sampling structure 1 includes a sampling rod 11, the sampling part 13 is in a hollow tubular shape, one end of the sampling part 13 is connected to the sampling rod 11, the other end is in an open shape, the open end can be inserted into an object for sampling, and most of the object is adhered in the tube body to realize sampling.

In an embodiment, as shown in fig. 3, at least one hollow hole 14 is formed in a sidewall of the sampling portion 13, so that when the sampling portion 13 is inserted into an object to be sampled, the object cannot be sufficiently adhered to the tube due to increased air pressure in the hollow cavity, and thus the sampling amount is insufficient, and therefore, the hollow hole 14 is also helpful for increasing the sampling amount of the sampling portion 13. The specific shape of the hollow hole 14 is not limited, and may be various shapes, including but not limited to a circle, an ellipse, a triangle, etc., which can play a role of ventilation, so that the air pressure of the hollow cavity of the sampling portion 13 is consistent with the external atmospheric pressure.

In one embodiment, as shown in fig. 3, the sampling rod 11 is provided with a clamping platform 12 capable of blocking the first through hole 61 of the first soft member 6, and when the sampling portion 13 is inserted into the storage tube 4 and the sample is sufficiently dissolved, the liquid in the storage tube 4 is usually required to be sealed to avoid contamination caused by overflow. The staff pushes down sampling rod 11, and card platform 12 moves downwards along with it, when moving to first through-hole 61, can seal first through-hole 61, avoids preserving the liquid in the pipe 4 and takes place the excessive because of collection system's transition, slope.

In one embodiment, as shown in fig. 3, the clamping platform 12 is in an inverted cone shape, the cross-sectional diameter of the clamping platform 12 is gradually reduced from top to bottom, the cross-sectional diameter of the lowermost portion is smaller than the diameter of the first through hole 61, the cross-sectional diameter of the uppermost portion is larger than the diameter of the first through hole 61, and after the clamping platform 12 moves downwards along with the sampling rod 11 to a certain extent, the clamping platform 12 partially enters the first through hole 61, so that the first through hole 61 is deformed to a certain extent, and the whole first through hole 61 is sealed by the clamping platform 12.

In one embodiment, as shown in fig. 2 and 3, the pipe cover 2 can be connected to the other end of the main pipe 3, and the pipe cover 2 can be screwed to the main pipe 3.

In one embodiment, as shown in fig. 2 and 3, the tube cover 2 has a limiting through hole 21 for inserting the sampling rod 11. Typically, the tube cap 2 is telescoped over the sampling rod 11 into the sampling rod 11.

In an embodiment, as shown in fig. 3, at least one first limiting protrusion 17 is disposed on the sampling rod 11, a limiting groove 22 is disposed on the tube cover 2, the limiting groove is communicated with the limiting through hole 21 and is used for the first limiting protrusion 17 on the sampling rod 11 to pass through, the number of the first limiting protrusions 17 may be 1, 2, 3 or more, and each first limiting protrusion 17 is located at the same horizontal position. In one embodiment, the number of the first limit protrusions 17 is 2, and the first limit protrusions are opposite to the side wall of the sampling rod 11. During the appearance of advancing, insert awl thorn structure 7 back with sampling rod 11, penetrate tube cap 2 from sampling rod 11's upper end, rotatory tube cap 2 this moment for first spacing arch 17 supports and leans on the internal surface at tube cap 2, and tube cap 2 swivelling joint is to the in-process of main part pipe 3 constantly shifts down, and sampling rod 11 moves down thereupon, promotes awl thorn structure 7 and shifts down and pass second soft 8, first soft 6, finally gets into in the save tube 4, and it is more laborsaving to directly hold sampling rod 11 and push down than the staff.

In an embodiment, as shown in fig. 3, the side wall of the sampling rod 11 is provided with a second limiting protrusion 18, the second limiting protrusion 18 is located below the first limiting protrusion 17, the second limiting protrusion 18 may be annular, and the diameter of the second limiting protrusion 18 is larger than the diameter of the limiting through hole 21, when the sampling rod 11 needs to be lifted up, the second limiting protrusion 18 can prevent the sampling rod 11 from being lifted up too high, and further prevent a sample on the lower side wall of the sampling rod 11 from polluting the limiting through hole 21. The second limiting protrusion 18 can prevent the second limiting protrusion 18 from being excessively lifted, when the second limiting protrusion 18 is lifted until the second limiting protrusion is blocked by the lower surface of the tube cover 2, namely when the second limiting protrusion 18 abuts against the lower surface of the tube cover 2, the clamping table 12 is separated from the first through hole 61 of the first soft piece 6, the upper part of the first soft piece 6 is communicated with the lower gas environment, because a gap exists between the sampling rod 11 and the limiting through hole 21 of the tube cover 2, the limiting groove 22 also has a ventilation effect, the gas space above the first soft piece 6 is communicated with the atmosphere, and when the upper part of the first soft piece 6 is communicated with the lower gas environment, the liquid in the storage tube 4 with the tube cap 41 removed can flow out from the liquid outlet part 44.

In one embodiment, when a sample application operation is required, the sampling rod 11 is lifted up to the clamping table 12 to be separated from the first through hole 61 of the first soft member 6, and the cap 41 at the bottom of the storage tube 4 is unscrewed, so that the liquid in the storage tube 4 can flow out from the liquid outlet portion 44.

In one embodiment, as shown in fig. 2, a flat structure 16 is disposed on the top of the sampling rod 11, and a worker can pinch the flat structure 16 to operate the sampling rod 11, so as to perform sampling and sample introduction.

In one embodiment, as shown in fig. 2, the sampling rod 11 is provided with anti-slip lines 15, and the anti-slip lines 15 are located above the tube cover 2, so that a worker can hold the position where the anti-slip lines 15 are located when necessary to smoothly rotate the sampling rod 11.

In an embodiment, the cross-sectional diameter of the sampling portion 13 gradually increases from top to bottom, usually slightly increases, and may be a trumpet shape, and the diameter of the lower opening of the sampling portion 13 is slightly larger than the diameter of the upper cross-sectional diameter, which may improve the sampling amount of the sampling portion 13. The sampling portion 13 may be a hollow tubular structure, for example, a linear tubular structure.

In an embodiment, as shown in fig. 2, 6, and 7, the sampling device further includes a second soft component 8, the second soft component 8 is located above the first soft component 6, the second soft component 8 has a second through hole 81 for the conical prick structure 7 to pass through, when the worker pushes the sampling rod 11 toward the direction of the storage tube 4, the sampling portion 13 of the sampling structure 1 pushes the conical prick structure to pass through the second soft component 8 and the first soft component 6 in sequence, and then enter the inner cavity of the storage tube 4. The diameter of the second through hole 81 can be smaller than the maximum diameter of the prick structure 7, the diameter of the second through hole 81 can also be smaller than the maximum diameter of the sampling part 13 of the sampling structure 1, when the prick structure 7 passes through the second through hole 81, the second through hole 81 elastically deforms, when the sampling part 13 passes through the second through hole 81, the upper surface of the second soft part 8 can scrape off the sample on the outer wall of the sampling part 13, the sample on the outer wall of the sampling part 13 is an unnecessary sample, and the second soft part 8 plays a role in scraping off the unnecessary sample. The sampling portion 13 is combined with the second soft material 8, so that more accurate quantitative sampling can be realized.

In an embodiment, as shown in fig. 6 and 7, the second soft material 8 has a plurality of strip-shaped slits 82 communicating with the second through hole 81, the number of the strip-shaped slits 82 may be 1, 2, 3 or more, and the strip-shaped slits 82 are circumferentially disposed outside the second through hole 81, so that the second soft material 8 is more easily deformed, and further the prick structure 7 and the sampling portion 13 are more easily passed through. In an embodiment, the strip slit 82 surrounds the second through hole 81, that is, the strip slit 82 is circumferentially disposed outside the second through hole 81, and the strip slit 82 can reduce the resistance to the prick structure 7, so that the prick structure 7 can smoothly pass through the second through hole 81, and meanwhile, the upper surface of the second soft material 8 can scrape off the excessive sample on the outer wall of the sampling portion 13.

In an embodiment, before sample injection, the prick structure 7 is embedded on the second soft component 8, specifically, the protrusion above the groove 731 is embedded in the strip-shaped slit 82, so that the prick structure 7 is effectively prevented from shaking.

The material of the second soft material 8 includes, but is not limited to, at least one of Nitrile Butadiene Rubber (NBR), Natural Rubber (NR), Styrene Butadiene Rubber (SBR), Butadiene Rubber (BR), and the like. The materials of the first soft material 6 and the second soft material 8 can be the existing materials and can be purchased from the market.

In an embodiment, as shown in fig. 12, 13, and 15, the holding tube 4 is provided with a liquid outlet portion 44 for releasing liquid and a cap 41 capable of closing the liquid outlet portion 44, and the cap 41 is detachably connected to the liquid outlet portion 44, and may be specifically screwed to the liquid outlet portion 44. When the sample liquid is required, the cap 41 is unscrewed, and the sample liquid can flow out from the liquid outlet portion 44. The liquid outlet 44 may be provided at the bottom of the storage tube 4 to facilitate the liquid outflow. The required liquid may be injected from the liquid outlet portion 44 when the apparatus is produced.

In one embodiment, the device further comprises an inner tube 5 positioned in the main tube 3, and a second soft part 8 and a first soft part 6 are sequentially arranged below the inner tube 5; the outer diameters of the first soft part 6, the second soft part 8 and the inner tube 5 can be the same, the first soft part 6, the second soft part 8 and the inner tube 5 can be stacked from bottom to top, the upper part of the groove 731 of the prick structure 7 is embedded into the strip-shaped seam 82 of the second soft part 8, and the concave space formed by the groove 731 and the first through hole 61 are located at the same horizontal position.

In an embodiment, the inner wall of inner tube 5 is equipped with two at least spacing protruding stupexes 51, and sampling portion 13 outward flange and/or the outer wall of sampling structure 1 paste and lean on spacing protruding stupexes 51 and move down, avoid sampling portion 13 to rock in inner tube 5, reduce the sample and drop or avoid the sample adhesion to the inner wall of inner tube 5.

In an embodiment, as shown in fig. 4 and 5, a boss 31 for placing the inner tube 5 and the first soft component 6 is arranged in the main tube 3, and the boss 31 supports the inner tube 5 so that the inner tube 5 does not move down.

In an embodiment, a space for placing the first soft part 6 and the second soft part 8 is formed between the lower part of the limiting convex rib 51 and the bottom edge of the inner tube 5, the first soft part 6 and the second soft part 8 are sequentially stacked on the boss 31 from bottom to top, and the lower part of the limiting convex rib 51 is in contact with part of the edge of the upper surface of the second soft part 8, so that the effect of fixing the second soft part 8 is achieved, and the phenomenon that the second soft part 8 shakes to affect the operation is avoided.

In an embodiment, the upper end of the limiting convex edge 51 is provided with the inclined surface 52, the protruding height of the limiting convex edge 51 is gradually increased from top to bottom, the sampling part 13 can rapidly enter the inner tube 5, the alignment efficiency of the sampling part 13 is improved, and the sampling part 13 is prevented from being dislocated with the sample inlet of the inner tube 5.

In one embodiment, the sample collected by the sampling portion 13 of the sampling structure 1 includes, but is not limited to, a semi-solid sample, typically a sample having a certain viscosity, which can adhere to the sampling portion 13 when collected. The sample includes, but is not limited to, at least one of feces, wet soil, and the like. The inner wall of the sampling part 13 can also be provided with a barb-shaped convex structure, so that the adhesive force of a sample is improved, and the sampling amount is further improved.

When a certain quantitative detection is required for a sample, a quantitative sampling is required. The existing commercial sampling tube cannot perform complex operations such as quantitative sampling, stirring and sample adding due to design defects, for example, the existing sampling tube only collects samples and stores the samples in a certain volume of storage solution, and the complex operations such as quantitative sampling, stirring and sample adding cannot be performed. In an embodiment, the utility model discloses an ingenious structural design combines main part pipe, save pipe, sampling structure for on easy operation's basis, realize functions such as quantitative sampling, stirring mixing, sealed save, quantitative application of sample simultaneously, greatly simplified operation flow.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims (10)

1. A sample collection device is characterized by comprising a sampling structure, a hollow main body tube and a preservation tube for storing a reagent, wherein one end of the main body tube is connected to an opening part of the preservation tube;

the sampling structure comprises a main body tube and a sampling part, wherein the main body tube is provided with a hollow channel, the sampling part can penetrate through the hollow channel of the main body tube and break through the first soft part to enter the inner cavity of the storage tube.

2. The sample collection device according to claim 1, wherein the first flexible member has a first through hole for passing the sampling portion of the sampling structure therethrough, the sampling portion of the sampling structure passing from the first through hole into the lumen of the holding tube;

the first soft piece is sleeved at the opening part of the storage tube;

the main body pipe is internally provided with a boss for placing a first soft piece.

3. The sample collection device according to claim 1, further comprising a membrane for closing the opening of the storage tube, wherein the sampling portion of the sampling structure is adapted to sequentially pass through the hollow channel of the main tube, the first flexible member located above or on the upper surface of the membrane, and then to pierce the membrane into the lumen of the storage tube.

4. The sample collection device according to claim 1, further comprising a spike structure having a platform, wherein a first protrusion is disposed on one side of the platform and can pass through the first soft member, wherein the sampling portion of the sampling structure abuts against the platform and pushes the spike structure to move toward the storage tube, and wherein the first protrusion passes through the first soft member and enters the inner cavity of the storage tube.

5. The sample collection device according to claim 4, wherein the inner wall of the retention tube is provided with a blocking member for blocking rotation of the spike structure, and when the sampling portion of the sampling structure enters the inner cavity of the retention tube and rotates, the blocking member blocks the first protrusion to prevent rotation of the spike structure.

6. The sample collecting device as claimed in claim 5, wherein a second protrusion is provided on the other side of the tray, a stirring protrusion for stirring the sample is provided on a side wall of the second protrusion, when the bottom of the sampling portion abuts against the upper surface of the tray, the second protrusion penetrates into the hollow chamber on the sampling portion, in which the sample is collected, from the bottom opening of the sampling portion, and when the sampling portion rotates, the stirring protrusion stirs the sample in the hollow chamber of the sampling portion;

one end of the second bulge and/or the stirring bulge, which is far away from the support table, is a prick tip;

the tray table is provided with a limiting part surrounding the second protrusion, and the bottom of the sampling part can penetrate through the space between the second protrusion and the limiting part and is abutted against the upper surface of the tray table.

7. The sample collection device according to claim 4, wherein the first protrusion has at least one stop protrusion that is engaged by a stop member on an inner wall of the storage tube;

one end of the stop bulge facing the bottom of the storage tube is a prick tip;

the stop bulge is provided with a groove corresponding to the first through hole of the first soft part.

8. The sample collection device according to claim 1, wherein the sampling structure comprises a sampling rod, the sampling portion has a hollow tubular shape, one end of the sampling portion is connected to the sampling rod, and the other end of the sampling portion has an open shape;

the side wall of the sampling part is provided with at least one hollow hole;

the sampling rod is provided with a clamping table capable of plugging a first through hole of a first soft piece;

the clamping platform is in an inverted cone shape, and the diameter of the cross section of the clamping platform is gradually reduced from top to bottom;

the tube cover can be connected to the other end of the main tube;

the tube cover is provided with a limiting through hole for inserting the sampling rod;

the sampling rod is provided with at least one first limiting bulge, and the tube cover is provided with a limiting groove which is communicated with the limiting through hole and can be used for the first limiting bulge on the sampling rod to pass through;

the side wall of the sampling rod is provided with a second limiting bulge, and the second limiting bulge is positioned below the first limiting bulge;

when the second limiting bulge abuts against the lower surface of the pipe cover, the clamping table on the sampling rod is separated from the first through hole of the first soft part;

the top of the sampling rod is provided with a flat structure;

and the sampling rod is provided with anti-skid lines.

9. The sample collection device according to claim 1, further comprising a second soft member disposed above the first soft member, the second soft member having a second through hole for the piercing structure to pass through, wherein the sampling portion of the sampling structure pushes the piercing structure to pass through the second soft member, the first soft member, and then the storage tube;

the diameter of the second through hole is smaller than the maximum diameter of the sampling part of the sampling structure, and when the sampling part penetrates through the second soft part, the upper surface of the second soft part can scrape redundant samples on the outer wall of the sampling part;

the second soft piece is provided with a plurality of strip-shaped seams communicated with the second through holes;

the strip-shaped seam surrounds the second through hole;

the conical thorn structure is embedded on the second soft part;

the preservation pipe is provided with a liquid outlet part for releasing liquid and a pipe cap capable of sealing the liquid outlet part.

10. The sample collection device according to claim 1, further comprising an inner tube disposed within the main tube, wherein a second soft member and a first soft member are disposed below the inner tube in this order;

the inner wall of the inner pipe is provided with at least two limiting convex ridges, and the outer edge and/or the outer wall of the sampling part of the sampling structure is/are abutted against the limiting convex ridges and moves downwards;

a space for placing a first soft part and a second soft part is formed between the lower part of the limiting convex edge and the bottom edge of the inner pipe, the first soft part and the second soft part are sequentially stacked on the boss on the inner wall of the main pipe from bottom to top, and the bottom of the limiting convex edge is contacted with part of the edge of the upper surface of the second soft part;

the upper end of the limiting convex edge is provided with an inclined surface, and the height of the limiting convex edge is gradually increased from top to bottom;

the sample collected by the sampling part of the sampling structure is a semisolid sample;

the sample collected by the sampling part of the sampling structure is a sticky sample.

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