CN218842163U

CN218842163U - Sampling device for DNA identification

Info

Publication number: CN218842163U
Application number: CN202320114657.5U
Authority: CN
Inventors: 韩瑞; 王奕琳
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-04-11
Anticipated expiration: 2033-01-16

Abstract

The utility model discloses a sampling device that DNA appraisal was used, concretely relates to DNA appraisal sample technical field, a sampler barrel for including the DNA appraisal, the inside piston assembly that is equipped with of sampler barrel, sample bobbin base portion outer wall threaded connection has the sleeve, sleeve bottom intercommunication has seal assembly, seal assembly bottom intercommunication has the connecting pipe, connecting pipe bottom intercommunication has the syringe needle. The utility model discloses a rotatory rotor plate drives the bull stick rotation, and the bull stick drives the closing plate and rotates and seal in hemisphere shape piece cavity top, avoids the DNA sample backward flow in the sampling tube to flow from connecting pipe and syringe needle, causes the reduction of DNA sample volume to the sampling personnel twists the sleeve and unpacks apart from the sampling tube, can pour out the DNA sample in the sampling tube is whole, and then avoids the DNA sample to remain and influences the required volume of DNA appraisal, makes the DNA appraisal more accurate.

Description

Sampling device for DNA identification

Technical Field

The utility model relates to a DNA appraisal sample technical field, the more specifically sampling device that DNA appraisal was used that says so.

Background

The utility model discloses a quantitative sampling device is used in DNA appraisal that is CN210711549U, this utility model discloses a sampler barrel, sample pistoning ware and stopper, sampler barrel bottom end fixedly connected with connecting block, connecting block lower extreme fixedly connected with sampling probe, top end fixedly connected with hand strap on the sampler barrel, the sampler barrel surface is provided with the scale, sample pistoning ware from the bottom up is including plug, core bar and hand-pulling board in proper order, top end fixedly connected with fixed block on the plug, fixed block upper end fixedly connected with core bar, top end fixedly connected with hand-pulling board on the core bar.

Above-mentioned prior art is when using, and in the DNA sample was sucked the sampling tube, the syringe needle of sampling tube bottom portion was not sealed, the problem of DNA sample backward flow can appear to when taking out the DNA sample, all can remain the DNA sample in sampling tube, connecting block and the syringe needle, lead to the DNA sample volume inaccurate, thereby can influence the appraisal accuracy nature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at driving the bull stick rotation through rotatory rotor plate, the bull stick drives the closing plate and rotates and seal in hemisphere type piece cavity top, avoid the DNA sample backward flow in the sampler barrel to flow from connecting pipe and syringe needle, cause the reduction of DNA sample volume, and the sampling personnel twists the sleeve and unpacks apart from the sampler barrel, can pour out the DNA sample in the sampler barrel is whole, and then avoid the DNA sample to remain the required volume of influence DNA appraisal, with the problem that appears in solving above-mentioned background art.

Realize the utility model discloses the technical scheme of purpose is: sampling device that DNA appraisal was used, including the sampling tube that DNA appraisal was used, the inside piston assembly that is equipped with of sampling tube, sampling tube bottom outer wall threaded connection has the sleeve, sleeve bottom intercommunication has seal assembly, seal assembly bottom intercommunication has the connecting pipe, connecting pipe bottom intercommunication has the syringe needle, seal assembly includes the hemisphere piece, the hemisphere piece runs through the sleeve, the inside cavity of having seted up of hemisphere piece, cavity and the inside intercommunication of sampling tube, the inside closing plate that is equipped with of cavity, the inside bull stick that runs through of closing plate, the bull stick inlays to be established inside the sleeve.

In a preferred embodiment, the surface of the outer wall of the sampling tube is embedded with two transparent silica gel sealing rings which are distributed up and down, the outer wall of each transparent silica gel sealing ring is in contact with the inner wall of the sleeve, the transparent silica gel sealing rings are used for sealing between the sleeve and the sampling tube, and air leakage and liquid leakage are avoided.

In a preferred embodiment, the sleeve and the hemispherical block are both provided with a communication hole, the rotating rod is arranged in the communication hole, and one end of the rotating rod is connected with the inner wall of the communication hole through a bearing and used for installing the rotating rod.

In a preferred embodiment, a groove is formed in the front side of the sleeve and is communicated with the communication hole, a rotating plate is arranged inside the groove, the inner wall of the rotating plate is fixed to one end of the rotating rod, and the rotating rod can be rotated conveniently to adjust the position of the sealing plate.

In a preferred embodiment, the bottom surface of the outer wall of the sampling tube and the surface of the inner wall of the sleeve are both provided with threads, and the sleeve is in threaded connection with the sampling tube through the threads, so that the sleeve is conveniently connected with the sampling tube.

In a preferred embodiment, the piston assembly comprises a piston rod, the piston rod penetrates through the sampling tube, a circular plate is fixedly arranged at the bottom of the piston rod, a rubber plug is fixedly arranged at the bottom of the circular plate, and the side wall of the rubber plug is in contact with the inner wall of the sampling tube and is used for sucking a DNA sample.

In a preferred embodiment, a hand-pulling plate is fixedly arranged at the top of the piston rod, a hand-lifting plate is fixedly arranged on the surface of the outer wall of the sampling tube, anti-skidding lines are processed on the outer walls of the hand-lifting plate and the hand-pulling plate, and the anti-skidding performance of the hand-lifting plate and the hand-pulling plate is improved.

In a preferred embodiment, the sampling tube and the sleeve are made of polyvinyl chloride, so that the graduations and the DNA sample in the sampling tube can be seen by a sampling person.

In a preferred embodiment, the sampling cylinder and the sleeve outer wall are both provided with scale marks for controlling the sampling amount.

In a preferred embodiment, the bottom surface of the hemispherical block is provided with a threaded hole, the outer wall surface of the connecting pipe is provided with threads, and the connecting pipe is in threaded connection with the threaded hole, so that the connecting pipe is convenient to mount and dismount.

After the technical scheme is adopted, the utility model discloses following positive effect has:

the utility model discloses a rotatory rotor plate drives the bull stick rotation, and the bull stick drives the closing plate and rotates and seal in hemisphere shape piece cavity top, avoids the DNA sample backward flow in the sampling tube to flow from connecting pipe and syringe needle, causes the reduction of DNA sample volume to the sampling personnel twists the sleeve and unpacks apart from the sampling tube, can pour out the DNA sample in the sampling tube is whole, and then avoids the DNA sample to remain and influences the required volume of DNA appraisal, makes the DNA appraisal more accurate.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the sampling tube and the sleeve of the present invention;

fig. 3 is a front plan view of fig. 2 of the present invention;

fig. 4 is a cross-sectional view of the sleeve of the present invention;

fig. 5 is a cross-sectional view of the hemispherical block of the present invention.

The reference signs are: 1. a sampling tube; 2. a sleeve; 3. a seal assembly; 4. a connecting pipe; 5. a needle head; 6. a transparent silica gel seal ring; 7. a communicating hole; 8. a groove; 9. rotating the plate; 10. a piston rod; 11. a circular plate; 12. a rubber plug; 13. a hand-pulled plate; 14. a hand-held board; 15. scale lines; 16. a threaded hole;

301. a hemispherical block; 302. a cavity; 303. a sealing plate; 304. and (4) rotating the rod.

Detailed description of the preferred embodiments

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the description refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

(example 1)

Referring to fig. 1-5, the utility model discloses sampling device with DNA appraisal usefulness, including sampling tube 1 that the DNA appraisal was used, piston assembly is equipped with in sampling tube 1 inside, sampling tube 1 bottom outer wall threaded connection has sleeve 2, sleeve 2 bottom intercommunication has seal assembly 3, seal assembly 3 bottom intercommunication has connecting pipe 4, connecting pipe 4 bottom intercommunication has syringe needle 5, seal assembly 3 includes hemisphere piece 301, hemisphere piece 301 runs through sleeve 2, hemisphere piece 301 is inside to be seted up cavity 302, cavity 302 and sampling tube 1 inside intercommunication, cavity 302 inside is equipped with closing plate 303, closing plate 303 inside runs through to be equipped with bull stick 304, bull stick 304 inlays to be established in sleeve 2;

the sleeve 2 and the hemispherical block 301 are both provided with a communicating hole 7, the rotating rod 304 is arranged in the communicating hole 7, one end of the rotating rod 304 is connected with the inner wall of the communicating hole 7 through a bearing and used for installing the rotating rod 304, the front side of the sleeve 2 is provided with a groove 8, the groove 8 is communicated with the communicating hole 7, a rotating plate 9 is arranged in the groove 8, the inner wall of the rotating plate 9 is fixed with one end of the rotating rod 304, so that the rotating rod 304 can be rotated to adjust the position of the sealing plate 303, the sampling cylinder 1 and the sleeve 2 are both made of polyvinyl chloride, a sampling person can conveniently see a scale mark 15 and a DNA sample in the sampling cylinder 1, and the outer walls of the sampling cylinder 1 and the sleeve 2 are both provided with scale marks 15 for controlling the sampling amount;

aspirate the sampling tube 1 through piston assembly with the DNA sample in, in the extraction, the sampling personnel passes through the scale mark 15 on sleeve 2 and sampling tube 1 surface, carry out accurate control to DNA sample volume, avoid getting more, get less, sampling tube 1 and sleeve 2 all adopt the poly vinyl to make, make the sampling personnel can see scale mark 15 and DNA sample, when sampling tube 1 is inside to be full of the DNA sample, the commentaries on classics board 9 in the rotatory recess 8 of sampling personnel drives the bull stick 304 rotatory, the bull stick 304 drives the closing plate 303 and rotates and seal above hemisphere piece 301 cavity 302, avoid the backward flow of the DNA sample in the sampling tube 1, flow from connecting pipe 4 and syringe needle 5.

(example 2)

See fig. 2-3, 1 outer wall surface of sampler barrel inlays the transparent silica gel sealing washer 6 that is equipped with two upper and lower distributions, the contact of the outer wall of transparent silica gel sealing washer 6 and 2 inner walls of sleeve uses transparent silica gel sealing washer 6 to play sealed effect between sleeve 2 and sampler barrel 1, avoids appearing gas leakage, weeping, 1 outer wall bottom surface of sampler barrel and 2 inner wall surfaces of sleeve are all processed threadedly, sleeve 2 makes things convenient for being connected of sleeve 2 and sampler barrel 1 through screw thread and 1 threaded connection of sampler barrel.

When need pour out the DNA sample from the sampling barrel 1 in, the sample personnel can twist and move sleeve 2 and unpack from the sampling barrel 1, then just can pour out the DNA sample in the sampling barrel 1 is whole, avoids the DNA sample to remain the required volume of influence DNA appraisal, transparent silica gel sealing washer 6 and the contact of sleeve 2 inner wall on the sampling barrel 1 outer wall, can improve the leakproofness between sleeve 2 and the sampling barrel 1 greatly, avoid appearing gas leakage, weeping.

(example 3)

Referring to fig. 1-4, the piston assembly includes a piston rod 10, the piston rod 10 penetrates through the sampling cylinder 1, a circular plate 11 is fixedly arranged at the bottom of the piston rod 10, a rubber plug 12 is fixedly arranged at the bottom of the circular plate 11, the side wall of the rubber plug 12 contacts with the inner wall of the sampling cylinder 1 for sucking DNA samples, a hand-pulling plate 13 is fixedly arranged at the top of the piston rod 10, a hand-lifting plate 14 is fixedly arranged on the outer wall surface of the sampling cylinder 1, anti-skid lines are processed on the outer walls of the hand-lifting plate 14 and the hand-pulling plate 13, the anti-skid performance of the hand-lifting plate 14 and the hand-pulling plate 13 is improved, a threaded hole 16 is formed in the bottom surface of the hemispherical block 301, a thread is processed on the outer wall surface of the connecting pipe 4, the connecting pipe 4 is in threaded connection with the threaded hole 16, and the connecting pipe 4 is convenient to install and detach.

Drive piston rod 10 through grasping hand-pulling board 13 and reciprocate, piston rod 10 drives plectane 11 and plug 12 and reciprocates in that sampling tube 1 is inside, can realize the suction to the DNA sample, and the hand-pulling board 14 on the sampling tube 1 outer wall can make things convenient for the sampling personnel to grasp sampling tube 1 to hand-pulling board 14 and hand-pulling board 13 surface all are processed anti-skidding line, can play skid-proof effect.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

A sampling device for DNA identification, comprising a sampling tube (1) for DNA identification, characterized in that: a piston assembly is arranged in the sampling cylinder (1); the outer wall of the bottom of the sampling tube (1) is in threaded connection with a sleeve (2), the bottom of the sleeve (2) is communicated with a sealing assembly (3), the bottom of the sealing assembly (3) is communicated with a connecting tube (4), and the bottom of the connecting tube (4) is communicated with a needle head (5);

seal assembly (3) include hemisphere shape piece (301), hemisphere shape piece (301) run through sleeve (2), cavity (302) have been seted up to hemisphere shape piece (301) inside, cavity (302) and the inside intercommunication of sampling tube (1), cavity (302) inside is equipped with sealing plate (303), sealing plate (303) inside runs through and is equipped with bull stick (304), bull stick (304) are inlayed and are established inside sleeve (2).
2. The sampling device for DNA identification according to claim 1, characterized in that: the surface of the outer wall of the sampling tube (1) is embedded with two transparent silica gel sealing rings (6) which are distributed up and down, and the outer wall of each transparent silica gel sealing ring (6) is in contact with the inner wall of the sleeve (2).
3. The sampling device for DNA identification according to claim 1, characterized in that: the communicating hole (7) has all been seted up to sleeve (2) and hemisphere shape piece (301) inside, rotating rod (304) are established inside communicating hole (7), rotating rod (304) one end is passed through the bearing and is connected with communicating hole (7) inner wall.
4. The sampling device for DNA identification according to claim 3, wherein: the sleeve (2) front side is opened and is equipped with recess (8), recess (8) and intercommunicating pore (7) intercommunication, recess (8) inside is equipped with commentaries on classics board (9), it is fixed with bull stick (304) one end to change board (9) inner wall.
5. The sampling device for DNA identification according to claim 1, characterized in that: the sampling tube (1) outer wall bottom surface and sleeve (2) inner wall surface all process the screw thread, sleeve (2) are through screw thread and sampling tube (1) threaded connection.
6. The sampling device for DNA identification according to claim 1, characterized in that: the piston assembly comprises a piston rod (10), the piston rod (10) penetrates through the sampling tube (1), a circular plate (11) is fixedly arranged at the bottom of the piston rod (10), a rubber plug (12) is fixedly arranged at the bottom of the circular plate (11), and the side wall of the rubber plug (12) is in contact with the inner wall of the sampling tube (1).
7. The sampling device for DNA identification according to claim 6, wherein: the anti-skid sampling device is characterized in that a hand-pulling plate (13) is fixedly arranged at the top of the piston rod (10), a hand-pulling plate (14) is fixedly arranged on the surface of the outer wall of the sampling cylinder (1), and anti-skid grains are processed on the outer walls of the hand-pulling plate (13) and the hand-pulling plate (14).
8. The sampling device for DNA identification according to claim 1, characterized in that: the sampling tube (1) and the sleeve (2) are both made of polyvinyl chloride.
9. The sampling device for DNA identification according to claim 1, characterized in that: scale marks (15) are processed on the outer walls of the sampling cylinder (1) and the sleeve (2) and used for controlling the sampling amount.
10. The sampling device for DNA identification according to claim 1, characterized in that: threaded holes (16) are formed in the bottom surface of the hemispherical block (301), threads are machined on the outer wall surface of the connecting pipe (4), and the connecting pipe (4) is in threaded connection with the threaded holes (16).