CN211339506U - Sampler - Google Patents

Abstract

The utility model discloses a sampler, include: a cylinder having an end cap and a peripheral wall; a push-pull rod reciprocally movably inserted in the end cap; the shell comprises a plurality of shell parts which can be mutually opened and closed, and the inner space of the peripheral wall is connected with one end of the push-pull rod; a spring disposed between the plurality of housing portions; and the cotton body is arranged in the shell. Therefore, the effective sampling of the thalli on the surface of the fruit is convenient.

Description

Sampler

Technical Field

The present invention relates to a sampler, and more particularly to a sampler capable of sampling bacteria on the surface of fruits.

Background

In the process of transporting fruits, sometimes, the surface bacteria of fresh fruits are sampled and analyzed to determine the types of bacteria or fungi causing fruit spoilage, and to determine how long the fruits can be transported without sterilization, or to specifically sterilize certain spoilage bacteria.

For example, it is sometimes desirable to sample the surface of spoiled fruit for the species of bacteria that cause the fruit to spoil. The existing sampling mode mainly adopts a cotton swab to sample strains, and then the cotton swab after sampling is placed in other objects which can be stored, such as a self-sealing bag.

However, disadvantages of this sampling approach include: when the number of samples is large, the sampling mode is slow; when the variety of fruits is more, different samples are easy to be cross-contaminated, so that result analysis is wrong; when the strain is separated from the host, water is easily lost, which may cause the inactivation of the strain, so that the later culture is difficult to determine the species of the strain; when the number of samples is large, the labor cost is increased due to the multiple steps.

Therefore, there is a need to provide a solution to the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a sampler to solve the problem of sampling the bacteria on the surface of the fruit in the prior art.

In order to achieve the above object of the present invention, the present invention provides a sampler, including: a cylinder having an end cap and a peripheral wall; a push-pull rod reciprocally movably inserted in the end cap; the shell comprises a plurality of shell parts which can be mutually opened and closed, and the inner space of the peripheral wall is connected with one end of the push-pull rod; a spring disposed between the plurality of housing portions; and the cotton body is arranged in the shell.

In an embodiment of the present invention, the housing moves along with the push-pull rod, so that the plurality of housing portions contact each other in the peripheral wall to close the housing, or at least one of the plurality of housing portions protrudes from the peripheral wall to open the housing.

In an embodiment of the present invention, the maximum outer diameter of the housing when opened is larger than the inner diameter of the peripheral wall, and the maximum outer diameter of the housing when closed is equal to the inner diameter of the peripheral wall.

In an embodiment of the invention, the peripheral wall includes a plurality of peripheral portions, at least one of the plurality of peripheral portions being shorter than the remaining peripheral portions, the housing moving with the push-pull rod such that at least one of the plurality of housing portions protrudes beyond the shorter peripheral portion, the remaining housing portions of the plurality of housing portions resting against the longer peripheral portion.

In an embodiment of the present invention, the peripheral wall includes a first peripheral portion and a second peripheral portion, the length of the second peripheral portion is shorter than the length of the first peripheral portion, the housing includes a first shell portion and a second shell portion, when the housing is pushed out of the barrel body along with the movement of the push-pull rod, the first shell portion slidably contacts the inner wall surface of the first peripheral portion, the second shell portion slidably contacts the inner wall surface of the second peripheral portion until the second shell portion protrudes out of the peripheral edge of the second peripheral portion, and the first shell portion leans against the inner wall surface of the first peripheral portion, so that the housing is changed from the closed state to the open state.

In an embodiment of the invention, a chamfered portion is provided on a peripheral edge of the shorter peripheral portion.

In an embodiment of the present invention, the chamfered portion forms an obtuse angle between an inner wall surface and a peripheral edge of the second peripheral portion, so that the chamfered portion guides the second shell portion to protrude from the peripheral edge of the second peripheral portion.

In an embodiment of the present invention, the peripheral wall includes a plurality of peripheral portions having equal lengths, and the housing moves along with the push-pull rod such that the plurality of shell portions protrude from the peripheral wall.

In an embodiment of the present invention, the peripheral wall includes a first peripheral portion and a second peripheral portion, the length of the second peripheral portion is the same as the length of the first peripheral portion, the housing includes a first shell portion and a second shell portion, when the housing is pushed out of the barrel body along with the movement of the push-pull rod, the first shell portion slidably contacts the inner wall surface of the first peripheral portion, the second shell portion slidably contacts the inner wall surface of the second peripheral portion until the second shell portion protrudes beyond the peripheral edge of the second peripheral portion, and the first shell portion protrudes beyond the peripheral edge of the first peripheral portion, so that the housing is changed from the closed state to the open state.

In an embodiment of the present invention, the peripheral edges of the plurality of peripheral portions are provided with chamfered portions.

In an embodiment of the present invention, the chamfered portion forms an obtuse angle between an inner wall surface and a peripheral edge of the plurality of peripheral portions, so that the chamfered portion guides the plurality of shell portions to protrude from the peripheral edge of the plurality of peripheral portions.

In an embodiment of the present invention, the plurality of shell portions are separated from each other, and a portion of edges of the plurality of shell portions are hinged to each other at one end of the push-pull rod.

In an embodiment of the present invention, the parts of the plurality of spherical shell parts that are not hinged at the edge are further provided with adhesive tapes respectively.

In an embodiment of the present invention, the plurality of shell portions are a plurality of spherical shell portions integrally formed, and a portion of edges of the plurality of spherical shell portions are connected to each other at one end of the push-pull rod.

In an embodiment of the present invention, the edges of the plurality of shells may form a parallel shape, a zigzag shape or a wavy shape, which is beneficial to increase the tightness of the shells when the shells contact each other and close.

In an embodiment of the present invention, the spring is a spring strip, and two ends of the spring strip are respectively connected to the outer wall surfaces of the plurality of shell portions.

In an embodiment of the present invention, the spring is a reed, and both ends of the reed are respectively connected to the inner wall surfaces of the plurality of shell portions.

In an embodiment of the invention, the cotton body is arranged between one of the plurality of shell parts and the spring.

In an embodiment of the present invention, the cotton body is disposed between the plurality of shell portions.

In an embodiment of the present invention, the cotton body is a cotton ball or a cotton sheet made of seed fibers of cotton plants or synthetic fibers made of polymer materials.

In an embodiment of the present invention, the other end of the push-pull rod is provided with a pull ring.

In an embodiment of the present invention, the pull ring is formed by bending the material of the push-pull rod or by assembling another object with a pull ring function.

Compared with the prior art, the sampler has the advantages that the springs are arranged among the plurality of shell parts, so that the shell parts are convenient to open and close manually, and people can sample the thalli on the surface of the fruit only by simple pushing and pulling actions of hands, so that the sampling process can be simplified, the sampling speed can be increased, and the labor cost can be reduced when a large amount of samples are needed; more importantly, the sampler can be reused, and the sampled sample can be effectively and independently sealed in the shell, so that cross contamination can be avoided, water dissipation can be reduced, the inactivation of the strain caused by dehydration when the strain is separated from the host can be prevented, and the problems that the sampled strain in the prior art is difficult to culture so that the type of the strain can not be determined and the like can be avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a sampler according to an embodiment of the present invention in which a housing is opened.

Fig. 2 is a schematic diagram of the sampler according to an embodiment of the present invention in which the housing is closed.

Fig. 3 is a schematic perspective view of the cartridge in fig. 1 or 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below. Furthermore, directional phrases used herein, such as, for example, upper, lower, top, bottom, front, rear, left, right, inner, outer, lateral, peripheral, central, horizontal, lateral, vertical, longitudinal, axial, radial, uppermost or lowermost, etc., refer only to the direction of the attached drawings. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention. Furthermore, the numerical terms are used to illustrate the invention and should not be construed as limiting the numerical expressions.

Referring to fig. 1, the sampler of the present invention may include a cylinder 1, a push-pull rod 2, a housing 3, a spring 4 and a cotton body 5, wherein the cylinder 1 has an end cap 11 and a circumferential wall 12; the push-pull rod 2 is inserted in the end cover 11 in a reciprocating manner; the housing 3 includes a plurality of housing portions (e.g., 3a, 3b) that can be opened and closed with each other, and one end 21 of the push-pull rod 2 is connected to the inner space of the peripheral wall 12; the spring 4 may be disposed between the plurality of shell portions (e.g., 3a, 3 b); the cotton 5 may be disposed within the housing 3. The following illustrates the related embodiments of the sampler, wherein the number of shell portions of the housing 3 is only two shell portions (e.g. 3a, 3b), but not limited thereto, and the related description can also be applied to a larger number of shell portions.

For example, the cylinder 1 may be made of a hard material, such as: the structure of the cylinder 1 mainly provides functions of guiding, limiting, releasing and the like for the shell 3, so that the shell 3 can be in an open state (as shown in fig. 1) outside the cylinder 1, and the shell 3 can be in a closed state (as shown in fig. 2) inside the cylinder 1, and the shape of the cylinder 1 can be changed according to use requirements, which is not limited herein.

For example, as shown in fig. 1, the cylinder 1 has an end cap 11 and a peripheral wall 12, the end cap 11 is used for the reciprocating insertion of the push-pull rod 2 for moving the housing 3, such as: the end of the push-pull rod 2 outside the barrel 1 may be provided with a pull ring 22, for example by bending the push-pull rod to form a pull ring or assembling another object with a pull ring function, in order to allow a person to push or pull the push-pull rod 2 with a force, it being understood that the length of the push-pull rod 2 is sufficient to allow at least a part of the housing 3 to move to a position protruding beyond the circumferential wall 12; one end of the peripheral wall 12 is connected to the end cap 11 to form a closed end, and the other end of the peripheral wall 12 forms an open end for the housing 3 to enter and exit the cylinder 1, and the structure of the cylinder 1 can be changed to facilitate the housing 3 to assume an open state (as shown in fig. 1) or a closed state (as shown in fig. 2).

For example, fig. 1 and 2 show the case 3 in an open and closed state respectively. When the housing 3 moves with the push-pull rod 2, for example: as shown in fig. 1, when the housing 3 is in the open state, a person may pull the push-pull rod 2 to move the plurality of shell portions 3a, 3b of the housing 3 from the outside of the peripheral wall 12 into the peripheral wall 12, specifically, the maximum outer diameter of the housing 3 when the housing 3 is opened is greater than the inner diameter of the peripheral wall 12 (as shown in fig. 1), the maximum outer diameter of the housing 3 when the housing 3 is closed is equal to the inner diameter of the peripheral wall 12 (as shown in fig. 2), the peripheral wall 12 may limit the plurality of shell portions 3a, 3b, and the plurality of shell portions 3a, 3b may contact each other in the peripheral wall 12 to close the housing 3 by the limiting effect of the peripheral wall 12 on the plurality of shell portions 3a, 3b (as shown in fig. 2); on the other hand, as shown in fig. 2, when the housing 3 is in the closed state, a person may push the push-pull rod 2 to move the housing 3 to remove at least one of the plurality of housing portions 3a, 3b of the housing 3 from the space inside the peripheral wall 12, and at the same time, the extending force provided by the spring 4 to the plurality of housing portions 3a, 3b may protrude at least one of the plurality of housing portions 3a, 3b of the housing 3 from the peripheral wall 12, so that the plurality of housing portions 3a, 3b are separated from each other to open the housing 3 (as shown in fig. 1).

In order to realize the above examples, some design examples may be performed on the configuration of the peripheral wall 12, which are described below by way of example and not limitation.

Optionally, in an embodiment, as shown in fig. 3, the peripheral wall 12 includes a plurality of peripheral portions (e.g., 121, 122), at least one (e.g., 122) of the plurality of peripheral portions (e.g., 121, 122) being shorter than the remaining peripheral portions (e.g., 121); as shown in fig. 1, when the housing 3 moves along with the push-pull rod 2, at least one (e.g., 3b) of the plurality of shell portions 3a, 3b is caused to protrude from the shorter peripheral portion (e.g., 122), and the remaining (e.g., 3a) of the plurality of shell portions 3a, 3b is caused to rest against the longer peripheral portion (e.g., 121).

For example, taking two peripheral portions as an example, specifically, the peripheral wall 12 may include a first peripheral portion 121 and a second peripheral portion 122, the length of the second peripheral portion 122 is shorter than the length of the first peripheral portion 121, the housing 3 includes a first housing portion 3a and a second housing portion 3b, when the housing 3 is pushed out of the cylinder 1 as the push-pull rod 2 moves, the first casing portion 3a is made to slidably contact the inner wall surface of the first peripheral portion 121, the second shell portion 3b slidably contacts the inner wall surface of the second peripheral portion 122, and the extension force applied to the plurality of shell portions 3a, 3b by the spring 4 is applied until the second shell portion 3b protrudes at the periphery of the second peripheral portion 122, at which time, the first casing portion 3a abuts against an inner wall surface of the first circumferential portion 121, and the housing 3 is changed from a closed state to an open state.

It should be noted that the above embodiments have at least the following beneficial effects: by making at least one peripheral portion (e.g. 122) of the plurality of peripheral portions (e.g. 121, 122) of the peripheral wall 12 shorter than the remaining peripheral portion (e.g. 121), when the housing 3 is in the inner space of the peripheral wall 12, the inner wall of the shorter peripheral portion (e.g. 122) generates a limiting effect against one of the shell portions (e.g. 3b) of the housing 3; when one of the shell portions (e.g. 3b) of the housing 3 is moved to the periphery of the shorter peripheral portion (e.g. 122), the periphery of the shorter peripheral portion (e.g. 122) has a releasing effect on the one shell portion (e.g. 3b) of the housing 3, so that the one shell portion (e.g. 3b) of the housing 3 is sprung open under the stretching force applied by the spring 4, and at this time, the other shell portion (e.g. 3a) of the housing 3 still leans against the inner wall surface of the longer peripheral portion (e.g. 121), and the inner wall of the longer peripheral portion (e.g. 121) is utilized to provide a stabilizing effect on the other shell portion (e.g. 3a) of the housing 3, thereby facilitating the sampling with the cotton body 5 of the housing 3 by a person.

Optionally, in an embodiment, as shown in fig. 1, the periphery of the shorter peripheral portion (e.g. the second peripheral portion 122) may be further provided with a chamfered portion 123, for example: the chamfered portion 123 forms an obtuse angle between the inner wall surface and the peripheral edge of the second peripheral portion 122, thereby facilitating the chamfered portion 123 to guide the second shell portion 3b to protrude from the peripheral edge of the second peripheral portion 122.

It should be noted that the above embodiments have at least the following beneficial effects: since the peripheral edge of the shorter peripheral portion (e.g., the second peripheral portion 122) is provided with the chamfered portion 123, when one shell portion (e.g., 3b) of the housing 3 is ejected, the chamfered portion 123 can provide a supporting force corresponding to the outer shape of the shell portion (e.g., 3b) to the shell portion, so that the shell portion (e.g., 3b) can be stably fixed; on the other hand, when one of the shell portions (e.g. 3b) of the housing 3 is pulled into the internal space of the peripheral wall 12, the special angle of the chamfered portion 123 may provide a guiding function for the shell portion (e.g. 3b), so that the one shell portion (e.g. 3b) is gradually closer to the other shell portions (e.g. 3a), and compared with a configuration without the chamfered portion, when the shell portion (e.g. 3b) is pulled into the internal space of the peripheral wall 12, the above-mentioned embodiment of the present application may further utilize the shell portion guiding function provided by the chamfered portion 123, which is beneficial for reducing the resistance of the peripheral edge of the shorter peripheral portion to the shell portion (e.g. 3b), and further reducing the force required to be applied by a.

In the above embodiment, the length of the second peripheral portion 122 is shorter than the length of the first peripheral portion 121, but the present invention is not limited thereto. Alternatively, in an embodiment, the lengths of the peripheral portions of the peripheral wall 12 may also be equal, for example: the length of the push-pull rod 2 may be longer than the length of the circumferential wall 12, when the housing 3 moves with the push-pull rod 2, for example: when the housing 3 is pushed out of the cylinder 1, the housing portions (e.g., 3a, 3b) may be protruded at the periphery of the peripheral wall 12, and the housing portions (e.g., 3a, 3b) may be separated from each other by an extending force applied to the housing portions (e.g., 3a, 3b) by the spring 4 to open the housing 3.

For example, taking two peripheral portions as an example, the peripheral wall 12 includes the first peripheral portion 121 and a second peripheral portion 122, the length of the second peripheral portion 122 is the same as the length of the first peripheral portion 121, the housing 3 includes the first shell portion 3a and a second shell portion 3b, when the housing 3 is pushed out of the cylinder 1 along with the movement of the push-pull rod 2, the first shell portion 3a slidably contacts the inner wall surface of the first peripheral portion, the second shell portion 3b slidably contacts the inner wall surface of the second peripheral portion 122, the tension applied to the plurality of shell portions 3a and 3b by the spring 4 is applied until the second shell portion 3b protrudes out of the peripheral edge of the second peripheral portion 122, and the first shell portion 3a protrudes out of the peripheral edge of the first peripheral portion 121, so that the housing 3 is changed from the closed state to the open state.

It should be noted that the above embodiments have at least the following beneficial effects: when the housing 3 is pushed out of the cylinder 1 along with the movement of the push-pull rod 2, the tension applied to the shell portions 3a and 3b by the spring 4 is greater until the first shell portion 3a and the second shell portion 3b protrude from the periphery of the peripheral wall 12, so that the opening range between the first shell portion 3a and the second shell portion 3b can be expanded more, which is beneficial to sampling larger fruit surface strains.

Optionally, in an embodiment, the peripheries of the peripheral portions 12 with equal length may be further provided with chamfered portions, for example: the chamfered portions form an obtuse angle between inner wall surfaces and peripheral edges of the plurality of peripheral portions, so that the chamfered portions can guide the plurality of shell portions to protrude from the peripheral edges of the plurality of peripheral portions.

It should be noted that the above embodiments have at least the following beneficial effects: because the peripheral edges of the plurality of peripheral parts are provided with the chamfer parts, when the plurality of shell parts of the shell are bounced open, the chamfer parts can provide supporting force corresponding to the appearances of the shell parts, so that the shell parts can be stably fixed; on the other hand, when the shell portions of the housing are pulled into the inner space of the peripheral wall 12, the special angle of the chamfered portion can provide a guiding function for the shell portions, so that the shell portions gradually approach each other, and compared with a structure without the chamfered portion, when the shell portions are pulled into the inner space of the peripheral wall 12, the above-mentioned embodiment of the present application can also utilize the guiding function of the shell portions provided by the chamfered portion, which is beneficial to reducing the resistance of the peripheral edges of the peripheral portions to the shell portions, and further can reduce the force required to be applied by a person.

In addition, as shown in fig. 1 and fig. 2, the housing 3 is connected to one end 21 of the push-pull rod 2 in the inner space of the peripheral wall 12, and the push-pull rod 2 can drive the housing 3 to move in the inner space of the peripheral wall 12; the housing 3 comprises a plurality of shells 3a, 3b that are openable and closable relative to each other, for example forming part of a housing structure such as a sphere or cube. Taking a sphere as an example, preferably, the shapes of the plurality of shell portions 3a, 3b may be symmetrical to each other for combining together to form a hollow sphere, but not limited thereto, the shapes of the plurality of shell portions 3a, 3b may also be formed to be combinable together but asymmetrical according to actual requirements, so as to meet the actual application requirements.

Alternatively, in an embodiment, as shown in fig. 1, the plurality of shell portions 3a, 3b may be a partial structure of any hollow shell that can be closed and opened with respect to each other, and the edges of the plurality of shell portions 3a, 3b may be changed, for example: the edges of the shells 3a and 3b may be formed in a flat shape, a zigzag shape or a wavy shape, so that the shells 3a and 3b are in contact or engaged with each other, which is beneficial to increase the sealing degree when the shell 3 is closed.

Alternatively, in an embodiment, the plurality of shell portions (e.g. 3a, 3b) are a plurality of spherical shell portions separated from each other, and a portion of edges of the plurality of spherical shell portions are hinged to each other at one end of the push-pull rod 2, for example, by a shaft member 31.

It should be noted that the above embodiments have at least the following beneficial effects: in addition to the shaft element 31 being able to articulate the housing parts (e.g. 3a, 3b), the shaft element 31 also has the function of limiting the extension stroke length of the push-pull rod 2, for example: when the push-pull rod 2 is pulled out of the space inside the peripheral wall 12, eventually the shaft 31 will abut against the end cap 11, and damage to the push-pull rod 2 due to complete withdrawal from the space inside the peripheral wall 12 can be avoided.

Optionally, in an embodiment, the portions of the spherical shell parts, which are not hinged to each other, are further provided with adhesive tapes 32, respectively, which is beneficial to improving the tightness of the spherical shell parts.

It should be noted that the above embodiments have at least the following beneficial effects: the edges of the spherical shell parts can have gaps due to manufacturing tolerance or assembly factors, and the adhesive tape 32 is arranged on the edges of the spherical shell parts, so that the gaps can be effectively filled, the tightness among the spherical shell parts can be improved, the sampled strain can be completely sealed among the spherical shell parts, and the water loss condition when the strain is separated from the host can be effectively avoided.

Alternatively, in an embodiment of the present invention, the plurality of shell portions may also be a plurality of integrally formed spherical shell portions, and a portion of edges of the plurality of spherical shell portions are connected to each other at one end of the push-pull rod, which is beneficial for reducing an assembly gap of the plurality of spherical shell portions, so that the housing formed by the plurality of spherical shell portions can improve a sealing degree.

Furthermore, as shown in fig. 1, the spring 4 may be any elastic element, the spring 4 is disposed between the housing portions (e.g., 3a, 3b), the spring 4 can store a restoring force (e.g., static stretching force) when compressed, and the spring 4 can release the restoring force when released, so as to provide a static stretching force (e.g., tension or pulling force) to the housing 3 to assist in transferring the housing 3 from the closed state to the open state, for example: the spring 4 is a leaf spring, for example: as shown in fig. 1 and 2, two ends of the spring are respectively connected to the inner wall surfaces of the plurality of shell portions 3a, 3b, and a portion between the two ends of the spring can be slightly bent for providing a tension for opening the plurality of shell portions 3a, 3b, wherein a bending degree of the spring can be adjusted according to an elastic force requirement. But not limited thereto, for example: alternatively, the spring 4 may be a spring bar having both ends connected to the outer wall surfaces of the shell portions 3a and 3b, respectively, for providing a pulling force for pulling the shell portions 3a and 3b apart.

Furthermore, as shown in fig. 1, the cotton body 5 may be any flexible object suitable for sampling fruit surface bacteria, and the cotton body 5 may be disposed in the housing 3, for example, attached to at least a portion of the inner surface or object of the housing 3 for sampling fruit surface bacteria, such as: various fruits or inedible fruits with economic value are sampled.

In an embodiment, the cotton body 5 is a cotton ball or a cotton piece made of seed fiber of cotton plant or synthetic fiber made of polymer material, for example, absorbent cotton, the cotton body 5 may be disposed between one of the plurality of shell portions 3a, 3b and the spring 4, and when the plurality of shell portions 3a, 3b are opened, the cotton body 5 between the one of the plurality of shell portions 3a, 3b and the spring 4 may be stretched together, so that an area available for sampling by the cotton body 5 is enlarged, which is beneficial for a person to sample the fungus on the surface of the fruit. But not limited thereto, for example: alternatively, the cotton body 5 may be disposed between the plurality of shell portions 3a and 3b, and when the plurality of shell portions 3a and 3b are opened, the cotton body 5 between the plurality of shell portions 3a and 3b may be stretched out together, so that the area of the cotton body 5 available for sampling is larger, which is beneficial for a person to sample the fungus on the surface of the fruit.

For convenience of explanation, the sampler embodiment of the present application will be described below by taking as an example a case where the circumferential wall 12 of the cylinder 1 has a circumferential portion of different length and the plurality of housing portions 3a and 3b are hinged to each other at one end of the push-pull rod 2, with reference to the drawings, but the present invention is not limited thereto, and the description can also be applied to different embodiments of the sampler described above.

As shown in fig. 1 and 2, before use, when the housing 3 is opened to expose the cotton body 5 as shown in fig. 1, the cotton body 5 is stained with distilled water or a part of the nutrient solution for the bacterial cells, the push-pull rod 2 is pulled to turn the housing 3 to a closed state (as shown in fig. 2), the sampler is put into a sterilizer for sterilization, and the sampler is cooled for standby. To take a sample, as shown in fig. 2, a person can hold the barrel 2 with one hand and hold the pull ring 22 with the other hand, and apply a force to press the pull-push rod 2 into the barrel 2, so that the pull-push rod 2 drives the housing 3 to move outward from the inner space of the barrel 2 until the second housing part 3b is ejected out of the second peripheral part 122, and the first housing part 3a is abutted against the first peripheral part 121.

At this time, the plurality of shell portions 3a and 3b are opened to change the housing 3 from the closed state to the open state, and cotton 5 (as shown in fig. 1) in the housing 3 is exposed, and in the maximum open state of the housing 3, surface cells of a fruit (such as fruit) are sampled, for example: the cotton body 5 is stained or smeared on the surface of the fruit for a plurality of times, so that thalli (such as fungi causing fruit putrefaction) on the surface of the fruit are stained on the cotton body 5; then, a force is applied to pull the push-pull rod 2 out of the cylinder 2, so that the push-pull rod 2 drives the housing 3 to move towards the inner space of the cylinder 2.

In this process, the second shell portion 3b is guided by the chamfered portion 123 to gradually approach the first shell portion 3a, and as the housing 3 is continuously pulled toward the interior of the barrel 2, the adhesive tape 32 between the second shell portion 3b and the first shell portion 3a contacts with each other, and then the first shell portion 3a and the second shell portion 3b are continuously and tightly closed by the first peripheral portion 121 and the second peripheral portion 122 of the peripheral wall 12, so that the environment around the cotton body 5 in the housing 3 can be prevented from flowing through the outside air, the moisture dissipation can be reduced, the activity of strains on the cotton body 5 can be improved, and the conditions of strain inactivation or cross contamination and the like can be avoided.

The sampled sampler may then be placed in another prepared bag after marking. Another unused sampler is removed for another sampling until all samples have been sampled.

Wherein, the sampled sampler can be put into a super clean bench; spraying sterilized alcohol on the sampler; pushing the pull ring of the sampler to enable the shell to be in a maximum opening state, and inoculating fungus on cotton into a prepared culture medium or other experimental equipment. Then, closing the shell, and placing the sampler in a sterilization pot for sterilization; and cleaning and drying the sampler after sterilization, and sterilizing before next sampling. Therefore, the sampler can be repeatedly used, and the experiment cost is saved.

Therefore, according to the embodiment of the sampler, the spring is arranged among the plurality of shell parts, so that the shell parts are convenient to open and close manually, and personnel can sample the thalli on the surface of the fruit only by simple pushing and pulling actions of hands, so that the sampling process can be simplified, the sampling speed can be increased, and the labor cost can be reduced when a large amount of samples are needed; more importantly, the sampler can be reused, and the sampled sample can be effectively and independently sealed in the shell, so that cross contamination can be avoided, water dissipation can be reduced, the inactivation of the strain caused by dehydration when the strain is separated from the host can be prevented, the problems that the sampled strain in the prior art is difficult to culture so that the type of the strain cannot be determined and the like can be solved, and the sampler can be suitable for various fruit sampling test places.

For the sake of brevity, the singular forms "a," "an," and "the" as used herein include plural referents unless the context clearly dictates otherwise, and are not to be construed as essential features of those embodiments.

It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination or as suitable in any other described embodiment of the invention. Certain features described in the context of various embodiments are not considered essential features of those embodiments, unless the embodiments do not function without those elements.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A sampler, characterized by: the method comprises the following steps:

a cylinder having an end cap and a peripheral wall;

a push-pull rod reciprocally movably inserted in the end cap;

the shell comprises a plurality of shell parts which can be mutually opened and closed, and the inner space of the peripheral wall is connected with one end of the push-pull rod;

a spring disposed between the plurality of housing portions; and

the cotton body is arranged in the shell.

2. The sampler of claim 1, wherein the housing moves with the push-pull rod to cause the plurality of housing portions to contact each other within the circumferential wall to close the housing or to cause at least one of the plurality of housing portions to protrude from the circumferential wall to open the housing.

3. A sampler according to claim 2, in which the maximum outer diameter of the housing when open is greater than the inner diameter of the circumferential wall and the maximum outer diameter of the housing when closed is equal to the inner diameter of the circumferential wall.

4. The sampler of claim 1, wherein the peripheral wall includes a plurality of peripheral portions, at least one of the plurality of peripheral portions being shorter than the remaining peripheral portions, the housing moving with the push-pull rod such that at least one of the plurality of housing portions protrudes beyond the shorter peripheral portion, the remaining ones of the plurality of housing portions resting against the longer peripheral portion.

5. A sampler according to claim 4, wherein the periphery of the shorter perimeter is provided with a chamfer.

6. The sampler of claim 1, wherein the peripheral wall includes a plurality of peripheral portions that are equal in length, the housing moving with the push-pull rod such that the plurality of housing portions protrude from the peripheral wall.

7. A sampler according to claim 6, wherein the periphery of the plurality of peripheral portions is provided with chamfered portions.

8. The sampler of claim 1, wherein the plurality of housing portions are a plurality of spherical shell portions separated from each other, and a portion of edges of the plurality of spherical shell portions are hinged to each other at one end of the push-pull rod.

9. The sampler of claim 8, wherein the parts of the plurality of spherical shell parts which are not hinged at the edges are also provided with adhesive strips respectively.

10. The sampler of claim 1, wherein the plurality of shell portions are a plurality of spherical shell portions integrally formed, and a portion of edges of the plurality of spherical shell portions are connected to each other at one end of the push-pull rod.

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