Filtering sampler for excrement

Abstract

The utility model relates to a sampling device for excrement filtration. The sampling device comprises a sampling tube, the filter pipe is coaxially connected with the sampling pipe, and an opening is formed in the end, away from the filter pipe, of the sampling pipe; the filtering membrane is arranged between the sampling tube and the filtering tube; the silica gel cover is arranged at the opening, a silica gel circular truncated cone is coaxially arranged on the outer top face of the silica gel cover, and a clamping hole communicating with the inner bottom face of the silica gel cover is coaxially formed in the silica gel circular truncated cone; a sampling part and a clamping part are arranged at the two ends of the sampling spoon respectively, and the sampling spoon is clamped in the clamping hole through the clamping part. The silica gel circular truncated cone is arranged on the outer top surface of the silica gel cover, and the sampling spoon is clamped in the clamping hole of the silica gel circular truncated cone, so that the sampling spoon can be controlled to sample by clamping the silica gel circular truncated cone, the distance between the clamping part and the sampling spoon is reduced, and the sampling is more convenient and simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a stool filtering sampler. Background Art

[0002] The sampling mechanism of the existing feces filter sampler usually includes a cover body covered on the sampling tube, and a sampling spoon is provided on the inner surface of the cover body. The sampling spoon is controlled by clamping the outer side of the cover body. Since there is a long distance between the outer side of the cover body and the sampling spoon, it is difficult to operate when clamping the cover body to take samples.

[0003] Therefore, it is urgent to provide a feces filtering sampler that can reduce the distance between the clamping part and the sampling spoon. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a feces filtering sampler.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A stool filtering sampler, comprising:

[0007] Sampling tube;

[0008] A filter tube, the filter tube is coaxially connected to the sampling tube, and an end of the sampling tube away from the filter tube is provided with an opening;

[0009] A filter membrane, wherein the filter membrane is disposed between the sampling tube and the filter tube;

[0010] A silicone cover, the silicone cover is arranged at the opening, a silicone truncated cone is coaxially arranged on the outer top surface of the silicone cover, and a clamping hole communicating with the inner bottom surface of the silicone cover is coaxially arranged inside the silicone truncated cone;

[0011] A sampling spoon, wherein a sampling portion and a clamping portion are respectively arranged at two ends of the sampling spoon, and the sampling spoon is clamped in the clamping hole through the clamping portion.

[0012] As a further improvement: the snap-in hole is a blind hole, and an annular groove is coaxially provided at one end of the snap-in hole away from the inner bottom surface close to the silicone cover, and the snap-in portion includes a spherical portion arranged at one end of the sampling spoon away from the sampling portion, and the spherical portion is snap-fitted into the annular groove.

[0013] As a further improvement: the snap-in hole includes a snap-in section arranged away from the inner bottom surface of the silicone cover and a transition section arranged close to the inner bottom surface of the silicone cover, the annular groove is arranged on the snap-in section, the snap-in section is interference fit with the sampling spoon, and the transition section is gap fit with the sampling spoon.

[0014] As a further improvement: a large clip-on silicone cylinder and a small clip-on silicone cylinder are coaxially arranged on the inner bottom surface of the silicone cover in a direction away from the silicone cone, the projection of the small clip-on silicone cylinder on the large clip-on silicone cylinder completely falls into the large clip-on silicone cylinder, the end faces of the large clip-on silicone cylinder and the small clip-on silicone cylinder are chamfered, and a makeshift hole connecting the clipping hole is arranged through the small clip-on silicone cylinder and the large clip-on silicone cylinder in sequence, the small clip-on silicone cylinder is clearance-fitted with the opening, and the large clip-on silicone cylinder is interference-fitted with the opening.

[0015] As a further improvement: the silicone cover is coaxially provided with a positioning ring abutting the end face of the opening, the outer edge of the positioning ring close to the end face of the silicone cone extends in a direction close to the silicone cone and parallel to the axis of the silicone cylinder to form a reinforcing cylinder, and the end face of the reinforcing cylinder away from the positioning ring is coaxially provided with a reinforcing ring.

[0016] As a further improvement: a hollow reducing column is coaxially provided at one end of the sampling tube close to the filter tube, and an expanded hole is coaxially provided at one end of the filter tube close to the sampling tube. The outer wall of the hollow reducing column is provided with an external thread, and the side wall of the expanded hole is provided with an internal thread, the external thread cooperates with the internal thread, and the filter membrane is clamped between the end face of the hollow reducing column away from the opening and the bottom of the expanded hole.

[0017] As a further improvement: it also includes a sealing ring, which is clamped between the end surface of the hollow reduced diameter column away from the opening and the filter membrane

[0018] The utility model has the following beneficial effects: by arranging a silicone truncated cone on the outer top surface of the silicone cover and clamping the sampling key in the clamping hole of the silicone truncated cone, the sampling spoon can be controlled to take samples by clamping the silicone truncated cone, thereby reducing the distance between the clamping part and the sampling spoon, and sampling is more convenient and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 This is a cross-sectional view of the silicone cover of the utility model;

[0023] Figure 4 for Figure 2 Enlarged view of part A in .

[0024] Reference numerals:

[0025] 1-sampling tube; 2-filter tube; 3-filter membrane; 4-silicone cover; 5-sampling spoon; 6-sealing ring;

[0026] 11-Hollow reduced diameter column;

[0027] 41-silicone truncated cone; 42-clamping hole; 43-large clamping silicone cylinder; 44-small clamping silicone cylinder; 45-clearance hole; 46-positioning ring; 47-reinforcement cylinder; 48-reinforcement ring;

[0028] 421-annular groove; 422-clamping section; 423-transition section;

[0029] 51- sampling part; 52- spherical part. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0031] In the description of the present invention, the terms "upper", "lower", "above", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 should not be understood as a limitation on the present invention.

[0032] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0033] The following combination Figure 1-4 The utility model is described in further detail.

[0034] Example 1

[0035] Reference Figure 1-4 As shown, this embodiment provides a stool filtration sampler, comprising:

[0036] Sampling tube 1;

[0037] A filter tube 2, the filter tube 2 is coaxially connected to the sampling tube 1, and an opening is provided at one end of the sampling tube 1 away from the filter tube 2;

[0038] A filter membrane 3 is provided between the sampling tube 1 and the filter tube 2;

[0039] A silicone cover 4 is provided at the opening, a silicone truncated cone 41 is coaxially provided on the outer top surface of the silicone cover 4, and a snap-in hole 42 communicating with the inner bottom surface of the silicone cover 4 is coaxially provided inside the silicone truncated cone 41;

[0040] The sampling spoon 5 has a sampling portion 51 and a clamping portion at both ends thereof, and the sampling spoon 5 is clamped in the clamping hole 42 via the clamping portion.

[0041] By arranging the sampling spoon 5 to be snap-fitted into the snap-fitting hole 42 , it is convenient to assemble and remove the sampling spoon 5 from the silicone cover 4 .

[0042] Since the silicone cover 4 is made of a flexible material and the sampling spoon 5 is flexibly connected to the sampling tube 1, the operator can hold the tube body with one hand and press or rotate the silicone cone 41 around the central axis with the other hand to stir the stool sample through the sampling spoon 5, so that the stool sample is more evenly dissolved in the solution.

[0043] In one embodiment, one end of the filter tube 2 away from the sampling tube 1 is provided with a thermoplastic film seal.

[0044] As a further improvement, the snap-in hole 42 is a blind hole, and an annular groove 421 is coaxially provided at one end of the snap-in hole 42 away from the inner bottom surface close to the silicone cover 4. The snap-in portion includes a spherical portion 52 arranged at one end of the sampling spoon 5 away from the sampling portion 51, and the spherical portion 52 is snap-fitted into the annular groove 421.

[0045] By snapping the spherical portion 52 into the annular groove 421 , the sampling spoon 5 is more firmly snapped into the snapping hole 42 . Meanwhile, the spherical outer surface of the spherical portion 52 provides a guide for snapping the spherical portion 52 into and out of the annular groove 421 , making it easier for the spherical portion 52 to snap into and out of the annular groove 421 .

[0046] As a further improvement, the snap-in hole 42 includes a snap-in section 422 arranged away from the inner bottom surface of the silicone cover 4 and a transition section arranged close to the inner bottom surface of the silicone cover 4, and an annular groove 421 is arranged on the snap-in section 422, the snap-in section 422 has an interference fit with the sampling spoon 5, and the transition section has a clearance fit with the sampling spoon 5.

[0047] Under the premise that the specifications of the sampling spoon 5 are certain, when the minimum interference fit depth required for the sampling spoon 5 to be clamped in the clamping hole 42 is less than the minimum height of the silicone truncated cone 41 required for clamping the silicone truncated cone 41, the clamping hole 42 is set to a clamping section 422 and a transition section 423. The clamping section 422 provides the minimum interference fit depth for the clamping of the sampling spoon 5, ensuring the clamping stability of the sampling spoon 5 while making the clamping and removal of the sampling spoon 5 convenient without excessive resistance; the transition section 423 additionally increases the overall height of the silicone truncated cone 41 to ensure the minimum height of the silicone truncated cone 41 required for clamping the silicone truncated cone 41. At the same time, since the transition section 423 and the sampling spoon 5 are in a clearance fit, the transition section 423 will not interfere with the clamping and removal of the sampling spoon 5 in the clamping section 422.

[0048] As a further improvement, a hollow reducing column 11 is coaxially provided at one end of the sampling tube 1 close to the filter tube 2, and an expanded hole is coaxially provided at one end of the filter tube 2 close to the sampling tube 1. The outer wall of the hollow reducing column 11 is provided with an external thread, and the side wall of the expanded hole is provided with an internal thread. The external thread matches the internal thread, and a filter membrane 3 is clamped between the end face of the hollow reducing column 11 away from the opening and the bottom of the expanded hole.

[0049] By threading the hollow reduced diameter column 11 into the enlarged diameter hole, the axial matching surface between the hollow reduced diameter column 11 and the enlarged diameter hole is increased, thereby improving the sealing performance of the connection between the sampling tube 1 and the filter tube 2.

[0050] By clamping the filter membrane 3 between the end face of the hollow reducing column 11 away from the opening and the bottom of the expanded hole, since these two faces are the axial abutment faces when the hollow reducing column 11 and the expanded hole are threaded together, the filter membrane 3 is abutted by the hollow reducing column 11 and the expanded hole, thereby ensuring the stable installation of the filter membrane 3.

[0051] As a further improvement, a sealing ring 6 is further included, and the sealing ring 6 is clamped between the end surface of the hollow reduced diameter column 11 away from the opening and the filter membrane 3.

[0052] By arranging a sealing ring 6 between the end surface of the control-reducing column away from the opening and the filter membrane 3, the sealing performance between the filter membrane 3 and the sampling tube 1 is further improved.

[0053] The working principle of the utility model is as follows: after obtaining a fecal sample through a sampling spoon 5, the silicone cover 4 is engaged with the opening of the sampling tube 1 to allow the fecal sample to enter the sampling tube 1, and then the fecal sample and the diluent in the sampling tube 1 are shaken manually or mechanically, and then the assembly of the sampling tube 1 and the filter tube 2 is placed upright, and the sample solution in the sampling tube 1 is filtered through the filter membrane 3 and flows into the filter tube 2. After the filtration is completed, the filtered sample solution can be obtained from the filter tube 2.

[0054] In one embodiment, a liquid taking port may be provided on the filter tube 2 to facilitate obtaining the sample solution from the filter tube 2 .

[0055] Example 2

[0056] Reference Figure 3 As shown, in order to facilitate the engagement and opening of the silicone cover 4 at the opening of the sampling tube 1, Example 2 proposes an improvement based on Example 1. The inner bottom surface of the silicone cover 4 is coaxially provided with a large engaging silicone cylinder 43 and a small engaging silicone cylinder 44 in sequence in the direction away from the silicone cone 41. The projection of the small engaging silicone cylinder 44 on the large engaging silicone cylinder 43 completely falls into the large engaging silicone cylinder 43. The end faces where the large engaging silicone cylinder 43 and the small engaging silicone cylinder 44 are connected are chamfered. A makeshift hole 45 connecting the engaging hole 42 is provided through the small engaging silicone cylinder 44 and the large engaging silicone cylinder 43 in sequence. The small engaging silicone cylinder 44 has a clearance fit opening, and the large engaging silicone cylinder 43 has an interference fit opening.

[0057] The small snap-in silicone cylinder 44 is used to gap fit the opening of the silicone cover 4 to provide a guide for the snap-fit ​​of the silicone cover 4 with the opening, the large snap-in silicone cylinder 43 is used to interference fit the opening of the silicone cover 4 to ensure the stability and sealing effect of the connection between the silicone cover 4 and the sampling tube 1, and chamfers are provided on the end faces where the large snap-in silicone cylinder 43 and the small snap-in silicone cylinder 44 meet to facilitate the interference fit between the large snap-in silicone cylinder 43 and the opening.

[0058] As a further improvement, the silicone cover 4 is coaxially provided with a positioning ring 46 which abuts the end face of the opening, and the outer edge of the end face of the positioning ring 46 close to the silicone cone 41 extends in a direction close to the silicone cone 41 and parallel to the axis of the silicone cylinder to form a reinforcing cylinder 47, and the end face of the reinforcing cylinder 47 away from the positioning ring 46 is coaxially provided with a reinforcing ring 48.

[0059] The manufacturing difficulty of the silicone cover 4 is reduced by integrally forming the silicone cover 4 , the silicone truncated cone 41 , the positioning ring 46 , the reinforcing cylinder 47 and the reinforcing ring 48 .

[0060] The positioning ring 46 is provided to realize the positioning of the silicone cover 4 when it is engaged at the opening. The reinforcing cylinder 47 is provided to improve the stability of the positioning ring 46 when it abuts the opening, so that the positioning ring 46 is not easily deformed by abutment. The reinforcing ring 48 is provided to ensure the structural stability of the reinforcing cylinder 47, so that the reinforcing cylinder 47 is not easily deformed by force.

[0061] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A stool filtration sampler, characterized in that: include: Sampling tube; A filter tube, the filter tube is coaxially connected to the sampling tube, and an end of the sampling tube away from the filter tube is provided with an opening; A filter membrane, wherein the filter membrane is disposed between the sampling tube and the filter tube; A silicone cover, the silicone cover is arranged at the opening, a silicone truncated cone is coaxially arranged on the outer top surface of the silicone cover, and a clamping hole communicating with the inner bottom surface of the silicone cover is coaxially arranged inside the silicone truncated cone; A sampling spoon, wherein a sampling portion and a clamping portion are respectively arranged at two ends of the sampling spoon, and the sampling spoon is clamped in the clamping hole through the clamping portion.

2. The stool filtration sampler according to claim 1, characterized in that: The snap-in hole is a blind hole, and an annular groove is coaxially provided at one end of the snap-in hole away from the inner bottom surface of the silicone cover. The snap-in portion includes a spherical portion arranged at one end of the sampling spoon away from the sampling portion, and the spherical portion is snap-fitted into the annular groove.

3. The stool filtration sampler according to claim 2, characterized in that: The snap-fit ​​hole comprises a snap-fit ​​section arranged away from the inner bottom surface of the silicone cover and a transition section arranged close to the inner bottom surface of the silicone cover, the annular groove is arranged on the snap-fit ​​section, the snap-fit ​​section is interference fit with the sampling spoon, and the transition section is clearance fit with the sampling spoon.

4. The stool filtration sampler according to claim 1, characterized in that: The inner bottom surface of the silicone cover is coaxially provided with a large clip-on silicone cylinder and a small clip-on silicone cylinder in sequence in the direction away from the silicone truncated cone. The projection of the small clip-on silicone cylinder on the large clip-on silicone cylinder completely falls into the large clip-on silicone cylinder. The end faces where the large clip-on silicone cylinder and the small clip-on silicone cylinder are connected are chamfered. A clearance hole connecting the clipping hole is provided through the small clip-on silicone cylinder and the large clip-on silicone cylinder in sequence. The small clip-on silicone cylinder is clearance-fitted with the opening, and the large clip-on silicone cylinder is interference-fitted with the opening.

5. The stool filtration sampler according to claim 1, characterized in that: The silicone cover is coaxially provided with a positioning ring abutting the end face of the opening, and the outer edge of the positioning ring close to the end face of the silicone cone extends in a direction close to the silicone cone and parallel to the axis of the silicone cylinder to form a reinforcing cylinder, and the end face of the reinforcing cylinder away from the positioning ring is coaxially provided with a reinforcing ring.

6. The stool filtration sampler according to claim 1, characterized in that: A hollow reducing column is coaxially provided at one end of the sampling tube close to the filter tube, and an expanded hole is coaxially provided at one end of the filter tube close to the sampling tube. The outer wall of the hollow reducing column is provided with an external thread, and the side wall of the expanded hole is provided with an internal thread. The external thread cooperates with the internal thread, and the filter membrane is clamped between the end face of the hollow reducing column away from the opening and the bottom of the expanded hole.

7. The stool filtration sampler according to claim 6, characterized in that: It also includes a sealing ring, which is clamped between the end surface of the hollow reduced diameter column away from the opening and the filter membrane.

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