Sampling device

Abstract

The utility model relates to a sampling device which comprises a sampling tube with an accommodating space; the sampling and filtering assembly is connected to the sampling pipe, the sampling and filtering assembly is provided with a sampling mechanism used for adding samples and filtering, the sampling mechanism extends into the containing space, and a liquid collecting cavity is defined by the inner side of the sampling mechanism; the outer cover is arranged outside the sampling and filtering assembly and the sampling pipe in a covering manner and is connected with the sampling pipe so as to block the inlet and outlet of the liquid collecting cavity. The sampling device is simple in overall structure and convenient to operate when various processes are carried out.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a sampling device. Background Art

[0002] Stool testing is a common clinical laboratory test. Testing a patient's stool can assist doctors in diagnosing certain diseases. During a stool test, stool samples must first be collected and placed in a sampling tube. Reagents are then added to the tube, mixed and filtered, and the supernatant is collected for testing. Common sampling devices in the related art have complex structures, making operations such as adding samples, reagents, and liquid collection inconvenient. Utility Model Content

[0003] Based on this, it is necessary to provide a sampling device with a simple overall structure and convenient operation when performing various processes.

[0004] A sampling device, comprising:

[0005] A sampling tube having a receiving space;

[0006] a sampling and filtering assembly connected to the sampling tube, the sampling and filtering assembly having a sampling mechanism for adding samples and performing filtration, the sampling mechanism extending into the accommodating space, and a liquid collecting cavity being enclosed on the inner side of the sampling mechanism; and

[0007] The outer cover is arranged on the outside of the sampling filter assembly and the sampling tube, and is connected to the sampling tube to block the inlet and outlet of the liquid collecting chamber.

[0008] In some embodiments, the sampling and filtering assembly includes an inner cover, which is hollow inside and is sleeved on the outside of the sampling mechanism;

[0009] The outer wall of the sampling tube is provided with a first mounting portion and a second mounting portion arranged along its own depth direction. The inner cover is sleeved on the outside of the first mounting portion and connected thereto. The outer cover is sleeved on the outside of the sampling filter assembly and the second mounting portion and connected to the second mounting portion.

[0010] In some embodiments, the inner cover is threadedly connected to the first mounting portion, and the outer cover is threadedly connected to the second mounting portion.

[0011] In some embodiments, the inner cover is integrally connected to the sampling mechanism.

[0012] In some embodiments, the inner cover and the sampling mechanism are separately provided and connected.

[0013] In some embodiments, the sampling mechanism is hooked on the sampling tube, and the inner cover is connected to the first mounting portion to press the sampling mechanism against the sampling tube.

[0014] In some embodiments, the sampling mechanism includes a sampling part for adding samples and a filtering part for filtering. The sampling part is hung on the sampling tube and pressed against the sampling tube by the inner cover. The filtering part is connected to the sampling part.

[0015] In some embodiments, the sample adding portion includes a sample adding spoon and a spoon rod connected to each other, the spoon rod having a hollow hole, and the spoon rod is pressed against the sampling tube by the inner cover;

[0016] The filter portion includes a filter screen and a mounting member connected to each other. The mounting member is connected to the spoon rod. The filter screen extends into the spoon rod. The liquid collecting cavity is surrounded by the inner side of the filter screen.

[0017] In some embodiments, one end of the mounting member facing away from the filter screen is hooked to one end of the spoon rod facing away from the sample adding spoon.

[0018] In some embodiments, the sampling filter assembly includes a sealing ring, which is sandwiched between the inner cover and the sample loading portion.

[0019] In some embodiments, the outer cover includes a connecting portion and a sealing portion that are connected to each other, the connecting portion and the sealing portion enclose a sealing cavity, the sampling filter assembly and the sampling tube extend into the sealing cavity, and the connecting portion is connected to the second mounting portion, and the sealing portion abuts against the sampling filter assembly.

[0020] In some embodiments, a sealing gasket is installed on the sealing portion, and the sealing portion abuts against the sampling filter assembly through the sealing gasket.

[0021] In some embodiments, the cross-sectional size of the accommodating space gradually decreases along the depth direction of the sampling tube and gradually away from the inlet and outlet.

[0022] In the above-mentioned sampling device, the sampling mechanism extends into the accommodating space, so that the collected sample can be sent into the accommodating space. A liquid collecting chamber is arranged on the inner side of the sampling mechanism, so that the sample and the reagent can be filtered after mixing, and the solids are isolated on the outside of the sampling mechanism to facilitate the collection of the supernatant for testing. The outer cover is arranged on the outside of the sampling filter assembly and the sampling tube, and is connected to the sampling tube to block the inlet and outlet of the liquid collecting chamber, so that the liquid collecting chamber can be sealed after assembly is completed, and the liquid inside can be inhibited from leaking out during the mixing process of the sample and the reagent. In the above-mentioned structure, only the basic structure for adding samples and filtering (sampling filter assembly and sampling tube) and the outer cover for sealing the above-mentioned structure need to be set. The overall number of components is small and the structure is relatively simple, which makes the operation more convenient when performing sample addition, reagent addition and liquid collection operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of a sampling device in one embodiment of the present application.

[0024] Figure 2 This is a cross-sectional view of a sampling device in one embodiment of the present application.

[0025] Figure 3 This is a cross-sectional view of a sampling filter assembly and a sampling tube in one embodiment of the present application.

[0026] Figure 4 Schematic diagram of a sampling tube in one embodiment of the present application.

[0027] Figure 5 Schematic diagram of a sampling and filtering assembly in one embodiment of the present application.

[0028] Figure 6 This is a schematic diagram of a sample adding portion in one embodiment of the present application.

[0029] Figure 7 This is a schematic diagram of a filter unit in one embodiment of the present application.

[0030] Figure 8 Schematic diagram of an outer cover in one embodiment of the present application.

[0031] Figure 9 This is a schematic diagram of an inner cover in one embodiment of the present application.

[0032] Reference numerals:

[0033] 100, sampling tube; 110, accommodating space; 120, limiting portion; 130, first mounting portion; 140, second mounting portion;

[0034] 200, sample adding portion; 210, sample adding spoon; 220, spoon rod; 221, hollow hole; 222, protrusion; 223, mounting cavity;

[0035] 300, filter unit; 310, filter screen; 311, liquid collecting chamber; 320, mounting member;

[0036] 400, inner cover; 410, fixing portion; 420, pressing portion;

[0037] 500, outer cover; 510, connecting portion; 511, rib; 520, blocking portion; 530, blocking cavity; 540, mounting hole;

[0038] 610, sealing ring; 620, sealing gasket. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0040] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0042] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0043] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0045] See Figures 1 to 3 The sampling device provided in one embodiment of the present application includes a sampling tube 100, a sampling filter assembly and an outer cover 500. Figures 2 to 4 The sampling tube 100 has a receiving space 110. Figures 3 to 7 The sampling and filtering assembly is connected to the sampling tube 100. The sampling and filtering assembly has a sampling mechanism for adding samples and filtering. The sampling mechanism extends into the accommodating space 110. A liquid collecting chamber 311 is provided on the inner side of the sampling mechanism. Figure 1 and Figure 2 The outer cover 500 is disposed on the outside of the sampling filter assembly and the sampling tube 100 and is connected to the sampling tube 100 to block the inlet and outlet of the liquid collecting chamber 311 .

[0046] In the above-mentioned sampling device, the sampling mechanism extends into the accommodating space 110, so that the collected sample can be sent into the accommodating space 110. A liquid collecting chamber 311 is arranged on the inner side of the sampling mechanism, so that the sample and reagent can be filtered after mixing, and the solids are isolated on the outside of the sampling mechanism to facilitate the collection of the supernatant for testing. The outer cover 500 is arranged on the outside of the sampling filter assembly and the sampling tube 100, and is connected to the sampling tube 100 to block the inlet and outlet of the liquid collecting chamber 311, so that the liquid collecting chamber 311 can be sealed after assembly is completed, and the liquid therein can be prevented from leaking out during the mixing process of the sample and reagent. In the above-mentioned structure, only the basic structure for sample addition and filtration (sampling filter assembly and sampling tube 100) and the outer cover 500 for sealing the above-mentioned structure need to be set. The overall number of components is small and the structure is relatively simple, which makes the operation more convenient when performing sample addition, reagent addition and liquid collection operations.

[0047] Figure 2 and Figure 3 The angle of view shown is the angle of view when the sampling device is in use. The up-down direction under this angle of view is defined as the first direction, which is also the depth direction of the sampling tube 100. The inlet and outlet of the liquid collecting chamber 311 are located at its top.

[0048] See Figures 2 to 5 In some embodiments, the sampling and filtering assembly includes an inner cover 400, which is hollow and fits over the outside of the sampling mechanism. The outer wall of the sampling tube 100 is provided with a first mounting portion 130 and a second mounting portion 140 arranged along its depth. The inner cover 400 fits over and connects to the first mounting portion 130, while the outer cover 500 fits over and connects to the second mounting portion 140 of the sampling and filtering assembly.

[0049] From the perspective of the accompanying drawings, the first mounting portion 130 is located above the second mounting portion 140. The dimension of the first mounting portion 130 perpendicular to the first direction (radial dimension) is smaller than that of the second mounting portion 140 to accommodate the larger size of the outer cover 500 compared to the inner cover 400, allowing the outer cover 500 to be mounted outside the sampling filter assembly and the second mounting portion 140.

[0050] See Figures 2 to 4 In some embodiments, the inner cover 400 is threadedly connected to the first mounting portion 130 , and the outer cover 500 is threadedly connected to the second mounting portion 140 .

[0051] Specifically, both the first mounting portion 130 and the second mounting portion 140 are externally threaded on the outer wall of the sampling tube 100. The inner wall of the inner cap 400 is internally threaded for threaded connection with the first mounting portion 130; the inner wall of the outer cap 500 is internally threaded for threaded connection with the second mounting portion 140. This allows the outer cap 500 to be attached to the sampling tube 100 simply by rotating it, while the sampling filter assembly can be attached to the sampling tube 100 simply by rotating the inner cap 400, making the assembly and disassembly process much simpler and easier to operate.

[0052] See Figures 2 to 4 In some embodiments, the inner cover 400 and the sampling mechanism are separately provided and connected. That is, the sampling mechanism is connected to the sampling tube 100 through the inner cover 400 .

[0053] See Figures 2 to 4 Furthermore, in some embodiments, the sampling mechanism is hooked to the sampling tube 100 , and the inner cover 400 is connected to the first mounting portion 130 to press the sampling mechanism onto the sampling tube 100 .

[0054] From the perspective of the accompanying drawings, the top end of the sampling mechanism is hooked on the top end of the sampling tube 100, and the inner cover 400 is sleeved on the outside of the sampling mechanism and the first mounting portion 130, and is threadedly connected to the first mounting portion 130 to press the sampling mechanism against the sampling tube 100, thereby realizing the installation of the sampling mechanism.

[0055] See Figure 2 ,as well as Figures 5 to 7 Furthermore, in some embodiments, the sampling mechanism includes a sampling part 200 for sampling and a filtering part 300 for filtering. The sampling part 200 is hung on the sampling tube 100 and is pressed against the sampling tube 100 by the inner cover 400. The filtering part 300 is connected to the sampling part 200.

[0056] In the above embodiment, the filter part 300 and the sample loading part 200 are separately provided, the filter part 300 is installed on the sample loading part 200, the top part of the sample loading part 200 is hung on the sampling tube 100, the inner cover 400 is sleeved on the outside of the sample loading part 200, and the sample loading part 200 is pressed tightly against the sampling tube 100, thereby completing the installation of the filter part 300 and the sample loading part 200.

[0057] See Figure 2 ,as well as Figures 5 to 7 In some embodiments, the sample loading portion 200 includes a connected sample loading spoon 210 and a spoon rod 220. The spoon rod 220 has a hollow hole 221 and is pressed against the sampling tube 100 by the inner cover 400. The filter portion 300 includes a connected filter screen 310 and a mounting member 320. The mounting member 320 is connected to the spoon rod 220. The filter screen 310 extends into the spoon rod 220, and a liquid collecting chamber 311 is defined on the inner side of the filter screen 310.

[0058] Specifically, in Figure 2 From the perspective, the top part of the spoon rod 220 is hooked on the sampling tube 100 and is pressed against the sampling tube 100 by the inner cover 400. The middle and lower parts of the spoon rod 220 both extend into the accommodating space 110. The sample adding spoon 210 is spoon-shaped and is connected to the bottom end of the spoon rod 220. The inside of the spoon rod 220 is hollow to form a mounting cavity 223, and the mounting cavity 223 passes through the spoon rod 220 in the up and down directions. The side wall of the spoon rod 220 is provided with a hollow hole 221 connected to the mounting cavity 223. The filter screen 310 is made of a mesh material, which extends into the mounting cavity 223 and is connected to the sample adding part 200 through the mounting part 320.

[0059] Stool samples can be scooped out using the sample spoon 210. Inserting the sample spoon 210 into the receiving space 110 allows the stool sample attached to the sample spoon 210 to be transferred into the receiving space 110. The solid-liquid mixture of the sample and reagent can then enter the mounting cavity 223 through the hollow hole 221. The filter 310 filters and separates the solids from the liquid, isolating the solids outside the filter 310. Subsequent testing can be completed by simply aspirating the supernatant from the liquid collection cavity 311.

[0060] See Figure 3 、 Figure 4 、 Figure 6 and Figure 9 In some embodiments, a protrusion 222 is provided on the outer wall of the spoon rod 220, and the spoon rod 220 is hung on the sampling tube 100 through the protrusion 222. The inner cover 400 includes a fixed portion 410 and a pressing portion 420 that are connected to each other. The fixed portion 410 is threadedly connected to the sampling tube 100, and the pressing portion 420 presses the protrusion 222 to the sampling tube 100.

[0061] Specifically, the outer wall of the top portion of the spoon rod 220 is convexly provided with an annular protrusion 222, and the protrusion 222 is hung on the top of the sampling tube 100. The inner cover 400 is annular and hollow inside so that it can be sleeved on the outside of the sample adding part 200. The fixing part 410 is vertically arranged and the pressing part 420 is horizontally arranged. The fixing part 410 is sleeved on the outside of the sampling tube 100 and is threadedly connected thereto. When the fixing part 410 is tightened to the outside of the sampling tube 100, the pressing part 420 presses the protrusion 222 down on the top of the sampling tube 100, thereby completing the installation of the sample adding part 200.

[0062] Further, see Figure 3 ,as well as Figures 5 to 7 In some embodiments, one end of the mounting member 320 facing away from the filter screen 310 is hooked to one end of the spoon rod 220 facing away from the sample adding spoon 210 .

[0063] Specifically, Figure 3From a viewing angle, the mounting member 320 is connected to the top of the filter 310, and the mounting member 320 is hooked to the top of the scoop rod 220, thereby suspending the filter 310 in the mounting cavity 223. Furthermore, the mounting member 320 is generally L-shaped, comprising a horizontally extending portion and a vertically extending portion, wherein the inner side of the horizontally extending portion is connected to the top of the filter 310, and the outer side of the horizontally extending portion is connected to the top of the vertically extending portion.

[0064] Since the filter part 300 is hung on the spoon rod 220 of the sample adding part 200 through the mounting part 320, when sampling, the top of the spoon rod 220 is pulled up to take out the sample adding part 200 and the filter part 300 together, and the fecal sample is dug out through the sample adding spoon 210 at the bottom end of the sample adding part 200, and then the sample adding part 200 and the filter part 300 are extended into the receiving space 110 again, so that the dug fecal sample can be sent into the receiving space 110, and the reagent is added from the inlet and outlet at the top of the liquid collecting chamber 311. After the subsequent reagent and sample are mixed, the solid-liquid mixture enters the mounting chamber 223 through the opening at the bottom end of the mounting chamber 223 and the hollow hole 221, wherein the solid part will be filtered by the filter screen 310 and isolated on the outside of the filter screen 310, and the liquid part exists in the space inside and outside the filter screen 310 at the same time.

[0065] In the aforementioned embodiments, the sample loading section 200 and the filter section 300 are provided separately, with the filter section 300 being mounted by being hooked to the sample loading section 200. In other embodiments, the sample loading section 200 and the filter section 300 may also be integrally formed. Specifically, only the sample loading section 200 is provided, and the scoop rod 220 in the sample loading section 200 is provided with a mesh material. In this case, the scoop rod 220 can perform filtering.

[0066] See Figure 3 In some embodiments, the sampling filter assembly includes a sealing ring 610 , which is sandwiched between the inner cover 400 and the sample loading portion 200 .

[0067] Specifically, the sealing ring 610 is sleeved onto the outside of the spoon rod 220, and the two are interference fit to secure the sealing ring 610 to the sample loading section 200. The mounting member 320 extends between the sealing ring 610 and the spoon rod 220, thereby pressing the mounting member 320 against the spoon rod 220 via the sealing ring 610, preventing it from falling off the spoon rod 220. The pressing portion 420 presses the protrusion 222 downward onto the top of the sampling tube 100 through the sealing ring 610, thereby enhancing the sealing there and preventing damage to the pressing portion 420 and the protrusion 222 from hard contact.

[0068] In the aforementioned embodiments, the inner cover 400 and the sampling mechanism are provided separately, and the sampling mechanism is connected to the sampling tube 100 via the inner cover 400. In other embodiments, the inner cover 400 and the sampling mechanism are integrated. Specifically, the inner cover 400 and the sample loading portion 200 are integrally formed into a single unit.

[0069] See Figure 2 、 Figure 4 、 Figure 5 and Figure 8 In some embodiments, the outer cover 500 includes a connecting portion 510 and a sealing portion 520 that are connected to each other. The connecting portion 510 and the sealing portion 520 enclose a sealing cavity 530. The sampling filter assembly and the sampling tube 100 extend into the sealing cavity 530. The connecting portion 510 is threadedly connected to the second mounting portion 140, and the sealing portion 520 abuts against the sampling filter assembly.

[0070] Specifically, the connecting portion 510 is hollow cylindrical, and the sealing portion 520 is plate-shaped. The sealing portion 520 extends into the connecting portion 510 and connects to its inner wall, thereby dividing the cavity within the connecting portion 510 into two parts: a sealing cavity 530 and a mounting hole 540 located on either side of the sealing portion 520. The top ends of the sampling filter assembly and the sampling tube 100 both extend into the sealing cavity 530. The connecting portion 510 is threadedly connected to the second mounting portion 140. When the connecting portion 510 is tightened, the sealing portion 520 presses down on the top end of the sampling filter assembly to seal the inlet and outlet at the top end of the liquid collecting chamber 311, preventing the solids and liquids inside from being poured out through this portion.

[0071] See Figure 2 、 Figure 5 and Figure 8 In some embodiments, a sealing gasket 620 is installed on the sealing portion 520 , and the sealing portion 520 abuts against the sampling filter assembly through the sealing gasket 620 .

[0072] Specifically, a sealing gasket 620 made of silicone or rubber is bonded to one side of the sealing portion 520 close to the liquid collecting chamber 311. When the connecting portion 510 is tightened, the sealing portion 520 is pressed down on the top of the sampling filter assembly through the sealing gasket 620 to enhance the seal here and inhibit liquid leakage.

[0073] See Figure 1 and Figure 2 In some embodiments, the outer cover 500 has a special-shaped mounting hole 540, such as a hexagonal hole. This allows a hexagonal cylindrical tool to be inserted into the mounting hole 540 and rotated to rotate the outer cover 500 relative to the sampling tube 100, thereby enabling the outer cover 500 to be installed and removed.

[0074] See Figure 1 and Figure 8In some embodiments, a plurality of ribs 511 are provided on the outer wall of the outer cover 500 to increase friction when the outer cover 500 is rotated relative to the sampling tube 100 using a tool such as a clamp, thereby facilitating the disassembly and assembly of the outer cover 500.

[0075] See Figure 1 and Figure 8 In some embodiments, a plurality of limiting portions 120 are protruding from the outer wall of the sampling tube 100 for plugging into and cooperating with fixed components such as a base, thereby preventing the sampling tube 100 from rotating during the rotation of the outer cover 500 and the inner cover 400, so as to facilitate the disassembly and assembly of the outer cover 500 and the inner cover 400.

[0076] See Figures 2 to 4 In some embodiments, the cross-sectional size of the accommodating space 110 gradually decreases along the depth direction of the sampling tube 100 and gradually away from the inlet and outlet.

[0077] From the perspective of the accompanying drawings, the cross-sectional dimensions of the accommodating space 110 gradually decrease from top to bottom. This allows the bottom space of the accommodating space 110 to be smaller, allowing more liquid to enter the liquid collecting chamber 311 inside the filter 310, thereby ensuring sufficient supernatant liquid for absorption.

[0078] Furthermore, the cross section of the accommodating space 110 is circular, and the diameter of the accommodating space 110 gradually decreases from top to bottom.

[0079] See Figure 2 The following describes the use process of the sampling device in one embodiment of the present application:

[0080] First, rotate the outer cover 500 and unscrew it from the sampling tube 100. This removes the sealing gasket 620 affixed to it, opening the inlet and outlet at the top of the liquid collecting chamber 311. Rotate the inner cover 400 and unscrew it from the sampling tube 100. Then, pull up the top of the scoop rod 220 to remove the sample loading section 200, the filter section 300, and the sealing ring 610. After scooping a stool sample using the sample loading spoon 210 of the sample loading section 200, extend the sample loading section 200 and filter section 300 into the receiving space 110. The sample loading section 200 is suspended from the sampling tube 100 by the protrusion 222. Reagent is added to the receiving space 110 through the inlet and outlet at the top of the liquid collecting chamber 311. The inner cover is placed over the sample loading section 200 and the sampling tube 100 and tightened by rotating it in the opposite direction. The sample loading section 200 is pressed against the sampling tube 100 via the sealing ring 610. Place the outer cover 500 over the sampling filter assembly and sampling tube 100, then rotate it in the opposite direction to tighten it. The seal 620 abuts against the top of the sampling filter assembly, thus sealing the entrance and exit of the top of the liquid collection chamber 311. Place the sampling device on a mixing device and vibrate to thoroughly mix the stool sample and reagent. Then, rotate the outer cover 500 again to remove it from the sampling tube 100, and aspirate the supernatant in the liquid collection chamber 311 for subsequent testing.

[0081] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A sampling device, characterized in that: The sampling device comprises: A sampling tube (100) having a receiving space (110); A sampling and filtering assembly is connected to the sampling tube (100), the sampling and filtering assembly having a sampling mechanism for adding samples and performing filtering, the sampling mechanism extending into the accommodating space (110), and a liquid collecting chamber (311) is provided on the inner side of the sampling mechanism; and The outer cover (500) is arranged on the outside of the sampling filter assembly and the sampling tube (100), and is connected to the sampling tube (100) to block the inlet and outlet of the liquid collecting chamber (311).

2. The sampling device according to claim 1, characterized in that The sampling filter assembly comprises an inner cover (400), the inner cover (400) is hollow and is sleeved on the outside of the sampling mechanism; The outer wall of the sampling tube (100) is provided with a first mounting portion (130) and a second mounting portion (140) arranged along the depth direction of the sampling tube (100); the inner cover (400) is sleeved on the outside of the first mounting portion (130) and connected thereto; the outer cover (500) is sleeved on the outside of the sampling filter assembly and the second mounting portion (140), and connected to the second mounting portion (140).

3. The sampling device according to claim 2, characterized in that The inner cover (400) is threadedly connected to the first mounting portion (130), and the outer cover (500) is threadedly connected to the second mounting portion (140).

4. The sampling device according to claim 2, characterized in that The inner cover (400) is integrally connected to the sampling mechanism.

5. The sampling device according to claim 2, characterized in that The inner cover (400) and the sampling mechanism are separately provided and connected.

6. The sampling device according to claim 5, characterized in that The sampling mechanism is hooked on the sampling tube (100), and the inner cover (400) is connected to the first mounting portion (130) to press the sampling mechanism onto the sampling tube (100).

7. The sampling device according to claim 6, characterized in that The sampling mechanism comprises a sample adding part (200) for adding samples and a filter part (300) for filtering. The sample adding part (200) is hooked on the sampling tube (100) and pressed against the sampling tube (100) by the inner cover (400). The filter part (300) is connected to the sample adding part (200).

8. The sampling device according to claim 7, characterized in that The sample adding portion (200) comprises a sample adding spoon (210) and a spoon rod (220) connected to each other, the spoon rod (220) having a hollow hole (221), and the spoon rod (220) is pressed against the sampling tube (100) by the inner cover (400); The filter portion (300) comprises a filter screen (310) and a mounting member (320) connected to each other, wherein the mounting member (320) is connected to the spoon rod (220), the filter screen (310) extends into the spoon rod (220), and the liquid collecting chamber (311) is enclosed inside the filter screen (310).

9. The sampling device according to claim 8, characterized in that One end of the mounting member (320) facing away from the filter screen (310) is hooked to one end of the spoon rod (220) facing away from the sample adding spoon (210).

10. The sampling device according to claim 7, characterized in that The sampling filter assembly includes a sealing ring (610), and the sealing ring (610) is sandwiched between the inner cover (400) and the sample adding portion (200).

11. The sampling device according to any one of claims 2 to 10, characterized in that The outer cover (500) includes a connecting portion (510) and a sealing portion (520) connected to each other, wherein the connecting portion (510) and the sealing portion (520) enclose a sealing cavity (530), the sampling filter assembly and the sampling tube (100) extend into the sealing cavity (530), and the connecting portion (510) is connected to the second mounting portion (140), and the sealing portion (520) abuts against the sampling filter assembly.

12. The sampling device according to claim 11, characterized in that A sealing gasket (620) is installed on the blocking portion (520), and the blocking portion (520) abuts against the sampling filter assembly through the sealing gasket (620).

13. The sampling device according to any one of claims 1 to 10, characterized in that Along the depth direction of the sampling tube (100) and gradually away from the inlet and outlet, the cross-sectional size of the accommodating space (110) gradually decreases.

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