Sampler capable of sampling for multiple times

Abstract

The utility model relates to the field of samplers, in particular to a sampler capable of sampling for multiple times, and aims to solve the technical problems that the conventional sampler is inconvenient to continuously suck different samples for multiple times, and waste is caused when a disposable sampler is used for sampling for multiple times. According to the technical scheme, the sampler capable of sampling for multiple times comprises an upper cover body, a lower cover body, an embedding opening, an air bag assembly, a bayonet and a sample suction assembly, according to the utility model, by utilizing the 6-8 air bag assemblies and the sample suction assemblies which are annularly distributed on the holding piece, a user can separately suck less than 8 samples by rotating and switching different sample suction assemblies by holding one sampler, and the sampler does not need to be cleaned in a sampling gap, so that the sampling efficiency is improved, and the sampling time is shortened. And a disposable sampler is not used, so that the material waste is reduced, and the problems that different samples are inconveniently and continuously sucked for multiple times by the existing sampler, and the waste is caused when the disposable sampler is used for sampling for multiple times are solved.

Description

Technical Field

[0001] The utility model relates to the field of samplers, in particular to a sampler capable of multiple sampling. Background Art

[0002] In current chemical, biological or medical samples, it is often necessary to use a sampler to sample liquid materials to obtain samples and test the material components and biological components of the samples. When faced with the need to sample multiple different liquid materials, or in a control experiment, when the same liquid material under different conditions is sampled separately, there is a need for multiple consecutive sampling.

[0003] When taking samples multiple times in succession, in order to ensure the cleanliness of the samples, the sampler needs to be cleaned between each sampling to prevent the next sample from being contaminated by the previous sample. This is very inconvenient to use. If the sampler uses a disposable sampler, a sampler will be consumed each time sampling is taken, which is very wasteful.

[0004] Therefore, in view of the fact that the above-mentioned existing samplers are not convenient for sucking different samples continuously multiple times, and there is a waste when using disposable samplers for multiple samplings, a sampler with multiple sampling heads can be designed, which can continuously sample multiple different materials by switching different sampling heads. Utility Model Content

[0005] In order to overcome the problem that existing samplers are inconvenient to continuously draw different samples for multiple times, there is a waste problem of using disposable samplers for multiple samplings.

[0006] The technical solution of the utility model is: a sampler capable of taking samples multiple times, comprising an upper cover body, a lower cover body, an embedding opening, an airbag assembly, a bayonet, and a sample suction assembly; the upper cover body and the lower cover body are both disc-shaped structures and are assembled oppositely into a holding piece with a disc-shaped cavity, the diameter of the disc-shaped holding piece is 6cm-10cm, 6-8 embedding openings are equidistantly arranged in a circular shape on the holding piece and are longitudinally penetrated, the airbag assembly is plugged and installed in the embedding opening, a bayonet corresponding to the embedding opening is arranged on the edge of the holding piece, the sample suction assembly is plugged in the bayonet and docked with the airbag assembly to connect the airway for sample suction, and the sample suction assembly slides in the bayonet to adjust the length of the protruding holding piece.

[0007] Preferably, the upper cover body and the lower cover body are assembled to form a disc-shaped structure that is convenient for people to grasp with one hand. The user selects a certain airbag assembly to press, and uses the airway formed by the airbag assembly and the corresponding sample suction assembly to sample the liquid material. When sampling different materials continuously, the gripping piece is directly rotated to use another airbag assembly and sample suction assembly to take samples.

[0008] Preferably, the airbag assembly includes an airbag column; the airbag column is a cylindrical hollow airbag and has arc-shaped protrusion structures at both ends, which protrude from the upper and lower surfaces of the grip respectively. The user presses two fingers on the protrusions at the upper and lower ends of the airbag column to squeeze them towards each other to expel gas and form negative pressure in the sample suction assembly. The design of the protrusion structures at both ends of the airbag column makes it convenient for the user to apply force.

[0009] Preferably, the airbag assembly also includes a rubber ring and a connecting head; the outer wall of the airbag column is hot-melt connected with a rubber ring, and the upper and lower ends of the rubber ring respectively abut against the inner wall of the upper cover body and the inner wall of the lower cover body, and the airbag column is fixedly connected to the connecting head with a rubber ring with continuous protrusions on the outer wall toward the adjacent bayonet side. The rubber ring is used to form a limiting structure in the cavity of the grip to prevent the airbag column from moving up and down in the embedding when the airbag column is pressed. The connecting head uses the rubber ring to increase the connection sealing between the airbag column and the sample suction assembly to prevent liquid material from leaking.

[0010] Preferably, the sample suction assembly includes a sample suction tube and a connecting plate; the sample suction tube is inserted into the bayonet, and the connecting plate is fixedly installed at one end of the sample suction tube in the cavity of the holding piece, and the inner wall of the connecting plate has a recess that matches the rubber ring, and the connecting plate is sleeved on the connecting head. The sample suction tube is a glass tube structure like the existing dropper sampler, and the connecting plate slides on the connecting head by pulling, so that the part of the sample suction tube extending out of the bayonet has different lengths, which is convenient for sampling materials at different depths in the container.

[0011] Preferably, the sample suction component also includes a positioning hole; two positioning holes are symmetrically opened on the upper and lower surfaces of the connecting disk, and the inner wall of the upper cover body and the inner wall of the lower cover body are fixedly connected with positioning rods inserted into the corresponding positioning holes. The connecting disk and the sample suction tube form a rotation limit by the insertion of the positioning rods and the positioning holes, and further improve the structural stability when the sample suction tube is stretched, avoiding torsional damage between the connecting disk and the connector, which causes sealing failure.

[0012] Preferably, circular grooves that are concave opposite to each other are provided in the middle of the upper surface of the upper cover body and in the middle of the lower surface of the lower cover body, and anti-slip rubber pads are adhered and fixed to the surfaces of the grooves. When users with smaller hands find it inconvenient to grasp the grip with their palms, the grooves can be used to facilitate users to pinch and use it with two fingers of one hand.

[0013] Preferably, a plug post with a longitudinal screw hole in the middle is fixedly connected to the top wall of the upper cover body, and a socket adapted to the plug post is fixedly connected to the bottom wall of the lower cover body. The upper cover body and the lower cover body are assembled together by longitudinally plugging the plug post and the socket, and then the bolt is screwed into the plug post and into the socket from the middle of the upper cover body to fix the upper cover body and the lower cover body.

[0014] Beneficial effects of the utility model:

[0015] 1. With 6-8 airbag components and sample suction components distributed in a ring shape on the grip, the user can hold such a sampler and use the rotation to switch different sample suction components to sample up to 8 samples separately. There is no need to clean the sampler between sampling, which improves the sampling efficiency, and there is no need to use disposable samplers, which reduces material waste;

[0016] 2. The upper cover and the lower cover are assembled oppositely to form a gripping piece that is convenient for human hands to grasp. The user can operate it with one hand, which is ergonomic and convenient and flexible to use;

[0017] 3. The sample suction tube is connected to the airbag column through a pullable connector and a connecting plate. According to the sampling needs, each sample suction component can be stretched and adjusted to sample liquid materials at different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the sampler capable of multiple sampling of the utility model;

[0019] Figure 2 Shown is a schematic diagram of the internal three-dimensional structure of the sampler capable of multiple sampling of the utility model;

[0020] Figure 3 What is shown is a first three-dimensional structural schematic diagram of the upper cover and the lower cover of the sampler capable of multiple sampling of the present utility model;

[0021] Figure 4 Shown is a second three-dimensional structural schematic diagram of the upper cover and the lower cover of the sampler capable of multiple sampling of the present utility model;

[0022] Figure 5 What is shown is a three-dimensional structural schematic diagram of the assembly state of the airbag component and the sample suction component of the sampler capable of multiple sampling of the utility model;

[0023] Figure 6 What is shown is a schematic diagram of the three-dimensional structure of the sampler airbag component and the sample suction component of the utility model that can take samples multiple times in the exploded state.

[0024] Explanation of the reference numerals: 1. upper cover body; 2. lower cover body; 3. inlay; 5. bayonet; 7. groove; 8. positioning rod; 9. plug column; 10. plug sleeve; 401. air bag column; 402. rubber ring; 403. connector; 601. sample suction tube; 602. connecting plate; 603. positioning hole. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-2The utility model provides an embodiment: a sampler capable of multiple sampling, comprising an upper cover body 1, a lower cover body 2, an inlay 3, an airbag assembly, a bayonet 5, and a sample suction assembly; the upper cover body 1 and the lower cover body 2 are both disc-shaped structures and are assembled oppositely into a gripping piece with a disc-shaped cavity, the disc-shaped gripping piece has a diameter of 6cm-10cm, and the gripping piece is provided with 6-8 inlays 3 that are longitudinally through and equidistantly arranged in an annular shape, the airbag assembly is plugged and installed in the inlay 3, and the edge of the gripping piece is provided with a one-to-one corresponding to the inlay 3 The bayonet 5 is a bayonet assembly, the sample suction component is inserted into the bayonet 5 and docked with the airbag assembly to communicate with the airway for sample suction. The sample suction component slides in the bayonet 5 to adjust the length of the extended gripping piece. The upper cover body 1 and the lower cover body 2 are assembled to form a disc-shaped structure that is convenient for people to grasp with one hand. The user selects a certain airbag assembly to press, and uses the airway formed by the airbag assembly and the corresponding sample suction assembly to sample the liquid material. When sampling different materials continuously, the gripping piece is directly rotated to use another airbag assembly and the sample suction assembly for sampling.

[0027] See also Figure 3-6In this embodiment, the airbag assembly includes an airbag column 401; the airbag column 401 is a cylindrical hollow airbag and both the upper and lower ends are arc-shaped protrusion structures, and the arc-shaped protrusion structures protrude from the upper and lower surfaces of the gripping member respectively. The airbag assembly also includes a rubber ring 402 and a connector 403; the outer wall of the airbag column 401 is hot-melt connected with a rubber ring 402, and the upper and lower ends of the rubber ring 402 are respectively against the inner wall of the upper cover body 1 and the inner wall of the lower cover body 2, and the airbag column 401 is fixedly connected to the side facing the adjacent bayonet 5 with a connector 403 having a rubber ring with continuous protrusions on the outer wall 3. The sample suction assembly includes a sample suction tube 601 and a connecting plate 602; the sample suction tube 601 is inserted into the bayonet 5, and one end of the sample suction tube 601 in the cavity of the gripping member is fixedly installed with a connecting plate 602, and the inner wall of the connecting plate 602 has a notch adapted to the rubber ring, and the connecting plate 602 is sleeved on the connector 403. The sample suction assembly also includes a positioning hole 603; two positioning holes 603 are symmetrically provided on the upper and lower surfaces of the connecting plate 602, and the inner side walls of the upper cover body 1 and the lower cover body 2 are fixedly connected with positioning holes inserted in the corresponding positioning holes 603. The user presses two fingers on the protrusions at the upper and lower ends of the airbag column 401 to squeeze them, exhausting the gas and forming a negative pressure in the sample suction component. The design of the protrusions at both ends of the airbag column 401 is convenient for the user to apply force. The rubber ring 402 is used to form a limit structure in the cavity of the grip to prevent the airbag column 401 from moving up and down in the inlay 3 when it is pressed. The connector 403 uses a rubber ring to increase the sealing between the connection and the sample suction component to prevent liquid materials from leaking. The sample suction tube 601 is a glass tube structure like the existing dropper sampler. The disk 602 slides on the connector 403 by pulling, so that the portion of the sample suction tube 601 extending out of the bayonet 5 has different lengths, which is convenient for sampling materials at different depths in the container. The edge of the connecting disk 602 has an opening connected to the positioning hole 603. The connecting disk 602 and the sample suction tube 601 form a rotation limit by plugging the positioning rod 8 and the positioning hole 603, and further improves the structural stability when the sample suction tube 601 is stretched, avoiding torsional damage between the connecting disk 602 and the connector 403, which would cause sealing failure.

[0028] See also Figure 1-4 In this embodiment, circular grooves 7 are provided in the middle of the upper surface of the upper cover body 1 and the middle of the lower surface of the lower cover body 2, and anti-slip rubber pads are glued and fixed on the surface of the grooves 7. A plug post 9 with a longitudinal screw hole in the middle is fixedly connected to the inner top wall of the upper cover body 1, and a socket 10 adapted to the plug post 9 is fixedly connected to the inner bottom wall of the lower cover body 2. When it is inconvenient for users with smaller hands to grasp the grip with their palms, the grooves 7 are used to facilitate users to pinch and use it with two fingers of one hand. The upper cover body 1 and the lower cover body 2 are longitudinally plugged and assembled together by the plug post 9 and the socket 10, and then the bolts are screwed into the plug post 9 from the middle of the upper cover body 1 and penetrate into the socket 10 to fix the upper cover body 1 and the lower cover body 2.

[0029] When working, the user first inserts and fixes 6-8 sample suction tubes 601 and the airbag column 401 through the connecting plate 602 and the connecting head 403, and then inserts the sample suction tubes 601 into the bayonet 5 on the lower cover body 2 one by one, inserts the lower end of the airbag column 401 into the embedded opening 3 on the lower cover body 2, and then covers the upper cover body 1 on the lower cover body 2, and the bayonet 5 on the upper cover body 1 is engaged with the sample suction tube 601. At the same time, the upper end of the airbag column 401 is pushed into the embedded opening 3 of the upper cover body 1, and the plug column 9 and the plug sleeve 10 are longitudinally plugged and assembled together. The bolt is screwed into the plug column 9 from the middle of the upper cover body 1 and penetrated into the plug sleeve 10 to fix the upper cover body 1 and the lower cover body 2;

[0030] The user holds the gripping member formed by the upper cover body 1 and the lower cover body 2 with one hand, selects a sample suction tube 601 and aims it at the liquid material, and uses two fingers of one hand to press the protrusions at the upper and lower ends of the airbag column 401 respectively to squeeze them in opposite directions, so that the gas is discharged through the sample suction tube 601 and an internal negative pressure is formed, and the sample suction tube 601 is placed in the material. After releasing the airbag column 401, the atmospheric pressure presses the material into the sample suction tube 601;

[0031] Next, squeeze the sample taken by the sample suction tube 601 into the corresponding container, rotate the gripper, select another sample suction tube 601, and sample another liquid material according to the above operation method.

[0032] Through the above steps, by using 6-8 airbag assemblies and sample suction assemblies distributed in a ring shape on the gripping piece, the user can hold such a sampler and use rotation to switch different sample suction assemblies to separately sample up to 8 samples. There is no need to clean the sampler between sampling, which improves the sampling efficiency. There is no need to use disposable samplers, which reduces material waste, so as to solve the problem that the existing samplers are inconvenient to continuously suck different samples multiple times, and there is waste when using disposable samplers for multiple sampling.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A sampler capable of multiple sampling, comprising an upper cover (1) and a lower cover (2); characterized in that: It also includes an insert (3), an airbag assembly, a bayonet (5), and a sample suction assembly; the upper cover body (1) and the lower cover body (2) are both disc-shaped structures and are assembled opposite to each other to form a gripping piece with a disc-shaped cavity, the diameter of the disc-shaped gripping piece is 6cm-10cm, and the gripping piece is provided with 6-8 inserts (3) that are longitudinally through and equidistantly arranged in a circular shape, the airbag assembly is inserted and installed in the inserts (3), and a bayonet (5) corresponding to the inserts (3) is provided on the edge of the gripping piece, the sample suction assembly is inserted in the bayonet (5) and docked with the airbag assembly to communicate with the airway for sample suction, and the sample suction assembly slides in the bayonet (5) to adjust the length of the gripping piece protruding out.

2. A sampler capable of multiple sampling according to claim 1, characterized in that: The airbag assembly comprises an airbag column (401); the airbag column (401) is a columnar hollow airbag and both upper and lower ends are arc-shaped convex structures, and the arc-shaped convex structures protrude from the upper and lower surfaces of the gripping member respectively.

3. A sampler capable of multiple sampling according to claim 2, characterized in that: The airbag assembly also includes a rubber ring (402) and a connector (403); the outer wall of the airbag column (401) is hot-melt connected to the rubber ring (402), the upper and lower ends of the rubber ring (402) respectively abut against the inner wall of the upper cover body (1) and the inner wall of the lower cover body (2), and the airbag column (401) is fixedly connected to the connector (403) with a rubber ring having a continuous protrusion on the outer wall on the side facing the adjacent bayonet (5).

4. A sampler capable of multiple sampling according to claim 3, characterized in that: The sample suction assembly comprises a sample suction tube (601) and a connecting plate (602); the sample suction tube (601) is inserted into the bayonet (5), and one end of the sample suction tube (601) located in the cavity of the holding piece is fixedly installed with the connecting plate (602), the inner wall of the connecting plate (602) has a notch adapted to the rubber ring, and the connecting plate (602) is sleeved on the connecting head (403).

5. A sampler capable of multiple sampling according to claim 4, characterized in that: The sample suction component also includes a positioning hole (603); two positioning holes (603) are symmetrically opened on the surface of the connecting plate (602), and positioning rods (8) are fixedly connected to the inner wall of the upper cover body (1) and the inner wall of the lower cover body (2) and inserted into the corresponding positioning holes (603).

6. A sampler capable of multiple sampling according to claim 1, characterized in that: Circular grooves (7) that are recessed in opposite directions are arranged in the middle of the upper surface of the upper cover body (1) and in the middle of the lower surface of the lower cover body (2), and anti-slip rubber pads are glued and fixed to the surfaces of the grooves (7).

7. The sampler capable of multiple sampling according to claim 1, characterized in that: The top wall of the upper cover body (1) is fixedly connected with an insertion column (9) having a longitudinally penetrating screw hole in the middle, and the bottom wall of the lower cover body (2) is fixedly connected with an insertion sleeve (10) adapted to the insertion column (9).

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