CN210626406U

CN210626406U - Liquid chromatogram sampling device

Info

Publication number: CN210626406U
Application number: CN201921081625.XU
Authority: CN
Inventors: 吴�琳; 胡汉高; 李盈
Original assignee: Wuhan Haipu Biomedical Technology Co ltd
Current assignee: Wuhan Haipu Biomedical Technology Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-05-26
Anticipated expiration: 2029-07-11

Abstract

The utility model discloses a liquid chromatography sample introduction device, which comprises a plurality of pore plates and a plurality of connecting plates, wherein the pore plates are provided with a plurality of sample introduction holes which are arranged in a line; the left side and the right side of the pore plate are respectively provided with a convex strip and a groove, the shape of the convex strip is matched with that of the groove, the top and the bottom of the front end and the back end of the pore plate are respectively provided with a rotating shaft, 1 connecting plate is connected between two corresponding rotating shafts of every two adjacent pore plates, and the connecting plates can detachably rotate relative to the rotating shafts; the plurality of pore plates are folded in a square shape through the connecting plates and are tightly attached to form a square box shape, and the convex strip of any pore plate is clamped in the groove of the adjacent pore plate. This device is formed by independent orifice plate concatenation combination, and the operator can select orifice plate quantity according to actual demand, has reduced the sample bottle frame that the laboratory need purchase, has improved the use flexibility of sample bottle frame, the cost is reduced.

Description

Liquid chromatogram sampling device

Technical Field

The utility model belongs to the technical field of liquid chromatogram sampling device, especially a liquid chromatogram sampling device.

Background

When performing liquid chromatography on a sample, a large number of sample bottles containing the sample need to be placed on a special sample introduction device (i.e., a sample bottle holder), and then sent into a liquid chromatograph for detection. Most of the existing sample bottle racks are fixed with certain specifications, and the sample bottle racks with different numbers are respectively placed in different numbers, such as 108 holes, 96 holes, 80 holes and the like; the aperture diameter of each hole is a fixed size, for example, 8mm, 9mm, 11mm, 12mm, etc.

In the prior art, most of commercially available sample bottle holders cannot adjust the number of holes of the sample bottle holder at will except for the specifications of the fixed number and the fixed diameter of the holes, and the size of the sample bottle holder cannot be adjusted. In order to facilitate different liquid chromatography tests, the problem causes that a plurality of sample bottle holders with different sizes must be purchased in a laboratory to adapt to different test requirements, and a lot of inconvenience is brought to the test. In addition, in order to avoid shaking, the sample bottle holders can only hold sample bottles with certain fixed pipe diameters, which also causes limitation on the application range of the sample bottle holders.

Disclosure of Invention

In order to solve the problem of the above prior art, the size and the hole number of the sample bottle rack can be adjusted relatively flexibly, the utility model provides a liquid chromatogram sampling device realizes through following technical scheme.

The liquid chromatography sample introduction device comprises a plurality of pore plates and a plurality of connecting plates, wherein the pore plates are provided with a plurality of sample introduction holes which are arranged in a line; the left side and the right side of the pore plate are respectively provided with a convex strip and a groove, the shape of the convex strip is matched with that of the groove, the tops and the bottoms of the front end and the rear end of the pore plate are respectively provided with a rotating shaft, 1 connecting plate is connected between two corresponding rotating shafts of every two adjacent pore plates, and the connecting plates can detachably rotate relative to the rotating shafts; the plurality of pore plates are folded in a shape of a Chinese character 'hui' through the connecting plates and are tightly attached to form a square box, and the protruding strip of any pore plate is clamped in the groove of the adjacent pore plate.

The liquid chromatogram sampling device is formed by connecting a plurality of independent pore plates through connecting plates. The number of the sampling holes on each pore plate can be set arbitrarily according to requirements. The number of the sample feeding holes in the finally formed sample feeding device is integral multiple of the number of the sample feeding holes of a single pore plate. The operating personnel can splice into the sampling device of different specification and dimension as required. Adjacent 2 orifice plates are when going on the shape folding back, probably have and rock or break away from, through setting up protruding strip and recess, can make it combine inseparabler, avoid the orifice plate after the shape folding back to rock.

Preferably, the specific connection structure that the connection plate is detachably and rotatably connected with the pore plate through the rotating shaft is as follows: the upper end and the lower end of the rotating shaft are provided with limiting rings, the connecting plate is symmetrically provided with 2 clamping jaws, the jaw opening of each clamping jaw is matched with the shaft diameter of the rotating shaft, and the corresponding rotating shaft is clamped inside by the clamping jaws. The technology is a mode of detachable connection between the connecting plate and the pore plate rotating shaft. Other connection modes which can achieve the same purpose are adopted, and the method also belongs to the protection scope of the patent.

More preferably, the number of the protruding strips and the grooves on the left and right sides of the orifice plate is not less than 2 and is arranged along the vertical direction.

Further preferably, a rotatable clamping hook and a clamping head matched with the clamping hook are arranged below the orifice plate; when the pore plate is folded in a square shape, the hook of any pore plate is clamped on the clamping head of the adjacent pore plate. After the clamping hook and the clamping head are clamped, the pore plates are combined more tightly, and the pore plates after the square-shaped folding are prevented from being scattered again.

Further preferably, the side wall of the sample inlet hole is provided with a clamping mechanism. The clamping mechanism can clamp sampling tubes with different tube diameters.

Preferably, the side wall of the sample inlet hole comprises an inner wall and an outer wall, a plurality of notches are horizontally and uniformly distributed on the inner wall, through holes are formed in the outer wall, the positions of the through holes correspond to the notches, the clamping mechanism comprises steel balls and springs, and the diameters of the steel balls are larger than the diameters of the through holes; the spring and the steel ball are positioned in the notch, and the steel ball is exposed out of the corresponding through hole under the extrusion of the spring. For example, a steel ball with a radius of about 2-3 mm is selected, and a part of the steel ball is exposed from the through hole under the action of the spring. When the sampling tube is inserted into the sampling hole, on one hand, the sampling tube extrudes the steel balls, on the other hand, the steel balls extrude the sampling tube under the action of the spring, and the sampling tube is fixed in the sampling hole. The size range of the sampling tube in which the sampling hole can be placed depends on the exposure degree of the steel ball in the through hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. design sampling device (being sample bottle frame) into to be formed by independent orifice plate concatenation combination, operating personnel can be according to actual demand, selects the orifice plate quantity that needs the concatenation combination, has greatly reduced the sample bottle frame volume that the laboratory need purchase, has improved the use flexibility of sample bottle frame, the cost is reduced.

2. The clamping device is arranged in the sample inlet hole, so that the sample inlet hole can clamp a plurality of sample inlet pipes with different sizes, and the use flexibility of the sample bottle rack is improved.

Drawings

FIG. 1 is a top view of the sample injection device for liquid chromatography of example 1 after being folded into a square;

FIG. 2 is a top view of the liquid chromatography sample injection device of example 1 without the completion of the zigzag folding;

FIG. 3 is a front view of a well plate of the liquid chromatography sample injection device of example 1;

FIG. 4 is a front view of a connection plate of the liquid chromatography sample introduction device of example 1;

FIG. 5 is a top view of a connection plate of the liquid chromatography sample injection device of example 1;

3 FIG. 3 6 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3

FIG. 7 is a bottom view of 2 adjacent well plates of the liquid chromatography sample injection device of example 2;

FIG. 8 is a schematic structural view of an in-well plate clamping mechanism of the liquid chromatography sample injection apparatus according to embodiment 2;

in the figure: 1. an orifice plate; 2. a connecting plate; 3. a sample inlet hole; 4. a raised strip; 5. a groove; 6. a rotating shaft; 7. a limiting ring; 8. a claw; 9. a hook is clamped; 10. clamping a head; 11. an inner wall; 12. an outer wall; 13. a recess; 14. a through hole; 15. steel balls; 16. a spring.

Detailed Description

The technical solutions of the embodiments in this patent will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of this patent. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the patent without making creative efforts, shall fall within the protection scope of the patent.

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the patent and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of this patent, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. It is to be noted that all the figures are exemplary representations. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

The patent is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Example 1

As shown in fig. 1 to 6, the liquid chromatography sample injection device provided in this embodiment includes a plurality of orifice plates 1 and a plurality of connection plates 2, wherein a plurality of sample injection holes 3 arranged in a line are provided on the orifice plates 1; the left side and the right side of the pore plate 1 are respectively provided with a protruding strip 4 and a groove 5, the shape of the protruding strip 4 is matched with that of the groove 5, the top and the bottom of the front end and the back end of the pore plate 1 are respectively provided with a rotating shaft 6, and 1 connecting plate 2 is connected between two rotating shafts 6 corresponding to 2 adjacent pore plates 1; the upper end and the lower end of the rotating shaft 6 are provided with limiting rings 7, 2 clamping jaws 8 are symmetrically arranged on the connecting plate 2, a jaw opening of each clamping jaw 8 is matched with the shaft diameter of the rotating shaft 6, the corresponding rotating shaft 6 is clamped inside by the clamping jaws 8, and the connecting plate 2 can detachably rotate relative to the rotating shaft 6; the plurality of pore plates 1 are folded in a shape of a circle through the connecting plates 2 and are tightly attached to form a square box, and the protruding strips 4 of any one pore plate 1 are clamped in the grooves of the adjacent pore plates 1.

Example 2

As shown in fig. 7 and 8, in the sample injection device for liquid chromatography provided in this embodiment, on the basis of embodiment 1, a rotatable hook 9 and a chuck 10 matched with the hook 9 are arranged below the orifice plate 1; when the pore plate 1 is folded in a shape of a Chinese character 'hui', the clamping hook 9 of any pore plate 1 is clamped on the clamping head 10 of the adjacent pore plate 1. The lateral wall of the sampling hole 3 comprises an inner wall 11 and an outer wall 12, a plurality of notches 13 are horizontally and uniformly distributed on the inner wall 11, through holes 14 are formed in the outer wall 12, and the positions of the through holes 14 correspond to the notches 13. The side wall of the sampling hole 3 is provided with a clamping mechanism, the clamping mechanism comprises a steel ball 15 and a spring 16, and the diameter of the steel ball 15 is larger than that of the through hole 14; the spring 16 and the steel ball 15 are positioned in the notch 13, and the steel ball 15 is exposed from the corresponding through hole 14 under the pressing of the spring 16.

The above embodiments describe the implementation of the present invention in detail, however, the present invention is not limited to the specific details of the above embodiments. Within the scope of the claims and the technical idea of the present invention, various simple modifications and changes can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. The liquid chromatography sample introduction device is characterized by comprising a plurality of pore plates and a plurality of connecting plates, wherein the pore plates are provided with a plurality of sample introduction holes which are arranged in a line; the left side and the right side of the pore plate are respectively provided with a convex strip and a groove, the shape of the convex strip is matched with that of the groove, the tops and the bottoms of the front end and the rear end of the pore plate are respectively provided with a rotating shaft, 1 connecting plate is connected between two corresponding rotating shafts of every two adjacent pore plates, and the connecting plates can detachably rotate relative to the rotating shafts; the plurality of pore plates are folded in a shape of a Chinese character 'hui' through the connecting plates and are tightly attached to form a square box, and the protruding strip of any pore plate is clamped in the groove of the adjacent pore plate.

2. The liquid chromatography sample introduction device according to claim 1, wherein the specific connection structure of the connection plate detachably and rotatably connected with respect to the orifice plate through the rotation shaft is as follows: the upper end and the lower end of the rotating shaft are provided with limiting rings, the connecting plate is symmetrically provided with 2 clamping jaws, the jaw opening of each clamping jaw is matched with the shaft diameter of the rotating shaft, and the corresponding rotating shaft is clamped inside by the clamping jaws.

3. The liquid chromatography sample introduction device according to claim 1 or 2, wherein the number of the protruding strips and the grooves on the left and right sides of the orifice plate is not less than 2 and is arranged in the vertical direction.

4. The liquid chromatography sample introduction device according to claim 3, wherein a rotatable hook and a chuck matched with the hook are arranged below the orifice plate; when the pore plate is folded in a square shape, the hook of any pore plate is clamped on the clamping head of the adjacent pore plate.

5. The liquid chromatography sample introduction device according to claim 1, 2 or 4, wherein a clamping mechanism is provided on a side wall of the sample introduction hole.

6. The liquid chromatography sample introduction device according to claim 5, wherein the side wall of the sample introduction hole comprises an inner wall and an outer wall, a plurality of notches are horizontally and uniformly distributed on the inner wall, through holes are formed in the outer wall, the positions of the through holes correspond to the notches, the clamping mechanism comprises steel balls and springs, and the diameters of the steel balls are larger than the diameters of the through holes; the spring and the steel ball are positioned in the notch, and the steel ball is exposed out of the corresponding through hole under the extrusion of the spring.