CN218067068U

CN218067068U - Hand-held type sampling device that punches

Info

Publication number: CN218067068U
Application number: CN202221884847.7U
Authority: CN
Inventors: 郭辉; 冯锐; 陈灿; 农保选; 夏秀忠; 杨行海; 张宗琼; 曾宇; 徐志健; 梁云涛; 蒋显斌; 李丹婷
Original assignee: Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
Current assignee: Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-12-16
Anticipated expiration: 2032-07-20

Abstract

The utility model belongs to the technical field of plant tissue sampling device, specifically disclose a hand-held type sampling device that punches, including mutual articulated first dwang and second dwang in middle part, be equipped with the spring between first dwang and the second dwang, first dwang one end is equipped with the control portion, the other end is equipped with the portion of punching a hole, and second dwang one end is equipped with presses the splenium, and the other end is equipped with the fixed part. This sampling device refers to the principle of scissors and punches the sample, and the centrifuging tube is fixed to the accessible fixed part before the use, presses the other end of first dwang and second dwang, can realize the sample of punching of blade tissue to the blade tissue that will punch the sword and cut out directly install in the centrifuging tube, and is simple and efficient, swift, efficient easy and simple to handle. Wherein, the fixed part adopts the structure of centre gripping, all is applicable to the centrifuging tube of equidimension not, and the suitability is strong. The problem of leaf tissue sampling complex operation, inefficiency is solved to this device, is particularly suitable for using in plant genome draws the experiment.

Description

Hand-held type sampling device that punches

Technical Field

The utility model relates to a plant tissue sampling device technical field especially relates to a hand-held type sampling device that punches.

Background

The plant genome extraction test is to digest and decompose protein in a solution containing SDS and proteinase K by using dispersed eukaryotic tissue cells, and then phenol: the protein is removed by the method of isoamyl alcohol extraction, and the obtained DNA is further purified by methods of ethanol precipitation, dialysis and the like. In the plant genome extraction test, the subsequent experimental operation can be performed only after the sample is collected and put into a centrifuge tube. There are two cases when sampling: 1. directly taking a leaf sample in a centrifuge tube in the field or the wild field; 2. the leaves are processed (e.g., lyophilized or air dried) and placed into centrifuge tubes in a laboratory. Generally, a blade sample put into a centrifuge tube needs to be processed into a size of 2mm-5mm, and scissors or a puncher are mostly used in the actual operation. Samples are cut by scissors, so that the labor intensity is high, the efficiency is low, and the samples are different in size; the sample is taken by the puncher, although the sampling efficiency is improved, the ordinary puncher does not have a device for fixing the centrifugal tube, the centrifugal tube is put into the puncher after the puncher punches the sample, the operation is complex, and different experimental groups are easily confused.

If the leaf sample processed into 2mm-5mm size can be directly loaded into the test tube, the operation steps can be reduced, and the sampling efficiency can be improved. On the other hand, the common centrifuge tubes in laboratories are 0.5ml, 1ml, 1.5ml and 2ml, and different experiments need centrifuge tubes with different sizes, that is, the sampling device needs to be adapted to centrifuge tubes with different diameters.

SUMMERY OF THE UTILITY MODEL

Not enough more than, the utility model provides a hand-held type sampling device that punches solves blade tissue sampling complex operation, the problem of inefficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a handheld punching and sampling device comprises a first rotating rod and a second rotating rod, wherein the middle parts of the first rotating rod and the second rotating rod are mutually hinged, a spring is arranged between the first rotating rod and the second rotating rod, one end of the first rotating rod is provided with a holding part, the other end of the first rotating rod is provided with a punching part, the punching part comprises a punching plate and a punching knife, one end of the punching plate is connected with the first rotating rod, the punching knife is arranged on the inner side of the punching plate, and the punching knife is detachably connected with the punching plate through a connecting part; second dwang one end is equipped with presses the splenium, and the other end is equipped with the fixed part, the fixed part includes the solid fixed ring of mutual articulated first solid fixed ring and second, first solid fixed ring one end with the second dwang links to each other, and the other end is equipped with the first clamping part of concave arcuation, the solid fixed ring one end of second is equipped with the pressing tablet, and the other end is equipped with concave arcuation second clamping part, the pressing tablet with be equipped with the spring between the second dwang, first clamping part and second clamping part enclose synthetic centrifuging tube and place the hole.

Preferably, the inner sides of the first clamping part and the second clamping part are provided with elastic gaskets. Preferably, the elastic pad is made of rubber.

Preferably, first retaining ring is equipped with two or more first clamping parts, the solid fixed ring correspondence of second is equipped with two or more second clamping parts, promptly the centrifuging tube is placed the hole and is had more than two.

Preferably, the punching plate is provided with a fixing groove with internal threads, and the connecting part of the punching knife is provided with external threads matched with the fixing groove.

Preferably, the punching knife is a hollow cylinder with an opening at one end, and the cutting edge of the punching knife is arranged at the opening end and is far away from one end of the fixing part.

Preferably, the punching device further comprises a pushing block, the pushing block is connected with the inner side of the punching knife through a spring, and the end part of the pushing block is flush with the cutting edge of the punching knife.

Preferably, the cutting edge of the perforating knife is serrated.

Preferably, the punching device further comprises a pressing block, the pressing block is fixed with the punching plate and arranged on the periphery of the punching knife, the pressing part is annular or is surrounded at intervals to form an annular shape, the height of the pressing block is higher than the cutting edge of the punching knife, and the fixing part is provided with a pressing groove corresponding to the position of the pressing block.

Preferably, the holding part is provided with an arc-shaped limiting strip, and a hand grip through hole is formed between the arc-shaped limiting strip and the holding part.

Preferably, the pressing part is provided with an anti-skidding sleeve.

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

1. this sampling device refers to the principle of scissors and punches the sample, sets up punching part and fixed part respectively at the tip of first dwang and second dwang, and the centrifuging tube is fixed to the accessible fixed part before the use, presses the other end of first dwang and second dwang, can realize the sample of punching of blade tissue to the blade tissue that will punch the sword and cut and take out directly connects to the centrifuging tube in, and is simple and convenient swift, efficient.

2. The fixing part of the sampling device comprises a first fixing ring and a second fixing ring which are hinged with each other, one end of the first fixing ring is connected with the second rotating rod, the other end of the first fixing ring is provided with a concave arc-shaped first clamping part, one end of the second fixing ring is provided with a pressing sheet, the other end of the second fixing ring is provided with a concave arc-shaped second clamping part, and the first clamping part and the second clamping part are enclosed to form a centrifugal tube placing hole; the fixing part adopts a clamping structure, is applicable to centrifuge tubes with different sizes such as 0.5ml, 1ml, 1.5ml, 2ml and the like, and has strong applicability.

3. The punching knife of the sampling device is internally provided with an elastic pushing block, and when the punching knife punches and samples the blade tissues, the pushing block can outwards push the cut blade tissues into a centrifugal tube, so that the sampling efficiency is further improved. Meanwhile, the pushing block is fixed with the punching knife through a spring, has certain elasticity and is not easy to damage the leaf tissue.

4. This sampling device sets up in punching the sword periphery and presses the pressure piece to corresponding the position at the fixed part and setting up and press the groove, during sampling operation, press the earlier contact blade of pressure piece, and fix the blade in pressing groove department, then, the punching sword punches the sample to the blade. According to the setting of pressing the piece promptly, reducible manual work presses the blade, and the operation is more convenient and fast.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is the structure schematic diagram of the handheld punching and sampling device of the present invention.

Fig. 2 is a schematic structural view of the punching portion of the present invention.

Fig. 3 is a schematic view of the disassembled structure of the punching part of the present invention.

Fig. 4 is a schematic structural view of the fixing portion of the present invention.

Fig. 5 is a reference diagram of the use state of the hand-held perforating sampling device.

Fig. 6 is a schematic structural diagram of another embodiment of the present invention.

Fig. 7 is a reference diagram of a usage status of another embodiment of the present invention.

Wherein the labels shown in the figures are: 1. a first rotating lever; 2. a second rotating lever; 3. a spring; 4. a grip portion; 5. punching a hole part; 6. a pressing part; 7. a fixed part; 8. punching a plate; 9. a punching knife; 10. a connecting portion; 11. a push block; 12. a first retaining ring; 13. a second retaining ring; 14. a hinge point; 15. a first clamping portion; 16. pressing the sheet; 17. a second clamping portion; 18. placing a hole in a centrifuge tube; 19. an elastic pad; 20. a pressing block; 21. pressing the groove; 22. an arc-shaped limiting strip; 23. perforating the gripper; 24. an anti-slip sleeve.

Detailed Description

The technical solution in 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. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside" and the like are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when 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 be referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, 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. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Example 1

As shown in fig. 1-5, a hand-held type sampling device that punches, including the mutual articulated first dwang 1 in middle part and second dwang 2, be equipped with spring 3 between first dwang 1 and the second dwang 2, first dwang 1 one end is equipped with the control portion 4, the other end is equipped with the portion of punching 5, 2 one end of second dwang is equipped with presses the splenium 6, and the other end is equipped with fixed part 7. The overall structure principle of the device is similar to that of scissors, and the distance between the holding part 4 and the pressing part 6 is shortened by pressing the holding part 4 and the pressing part 6 by hands, so that the punching part 5 can be close to the fixing part 7, and the blades placed on the fixing part 7 are punched and sampled.

Specifically, punching part 5 includes punching plate 8 and punching knife 9, punching plate 8 one end with first pivot pole 1 links to each other, punching plate 8 inboard is equipped with punching knife 9, punching knife 9 through connecting portion 10 with punching plate 8 is detachable continuous. The punching knives 9 with different specifications and sizes can be replaced according to the requirements, and more use requirements are met. Specifically, the punching plate 8 is provided with a fixing groove with an internal thread, and the connecting portion 10 of the punching knife 9 is provided with an external thread matched with the fixing groove. Namely, the punching knife 9 is detachably connected with the punching plate 8 through screw threads. Of course, in other embodiments, other existing manners such as bolting may also be used to detachably connect the punching plate 8 and the punching blade 9.

Further, the punching blade 9 is a hollow cylinder with an open end, and the cutting edge of the punching blade 9 is disposed at the open end and is away from the fixing portion 7. The cutting edge of the perforating knife 9 is serrated. Is favorable for cutting the leaf tissue.

Preferably, the punching device further comprises a pushing block 11, wherein the pushing block 11 is connected with the top of the inner side of the punching blade 9 through a spring 3, and the end part of the pushing block 11 is flush with the blade edge of the punching blade 9. That is, when the punching knife 9 punches and samples the leaf tissue, the push block 11 can push the cut leaf tissue outward into the centrifuge tube, thereby further improving the sampling efficiency.

Concretely, fixed part 7 includes the solid fixed ring 13 of the first solid fixed ring 12 of mutual articulated and the solid fixed ring 13 of second, and the tip is located to the pin joint 14 of the solid fixed ring 12 of first solid fixed ring and the solid fixed ring 13 of second to pin joint 14 is as separating, first solid fixed ring 12 one end with second dwang 2 links to each other, and the other end is equipped with the first clamping part 15 of concave arc shape, the solid fixed ring 13 one end of second is equipped with pressing piece 16, and the other end is equipped with concave arc shape second clamping part 17, pressing piece 16 with be equipped with spring 3 between the second dwang 2, first clamping part 15 and second clamping part 17 enclose synthetic centrifuging tube and place hole 18. In use, a centrifuge tube is placed within the centrifuge tube placement hole 18. The blade is placed on the fixing part 7 above the tube opening of the centrifuge tube, the pressing part 6 and the holding part 4 are pressed by hands, the punching knife 9 can punch and sample the blade, and the taken blade tissue is pushed into the centrifuge tube through the pushing sheet. The centrifugal tube is fixed by clamping and is suitable for centrifugal tubes with different sizes such as 0.5ml, 1ml, 1.5ml, 2ml and the like. Preferably, an elastic pad 19 is disposed inside the first clamping portion 15 and the second clamping portion 17. The elastic pad 19 is made of rubber and is fixed to the first and

second clamping portions

15 and 17 by conventional means such as gluing.

The punching device is characterized by further comprising a pressing block 20, wherein the pressing block 20 is fixed with the punching plate 8 and arranged on the periphery of the punching knife 9, the pressing part 6 is annular or is surrounded at intervals into an annular shape, the height of the pressing block 20 is higher than the cutting edge of the punching knife 9, and a pressing groove 21 corresponding to the position of the pressing block 20 is arranged on the fixing part 7. During the use, place the fixed part 7 top with the blade and cover the centrifuging tube mouth of pipe, after the operation of beginning to press, press the briquetting 20 on the punching plate 8 and contact the blade earlier to fix the blade in pressing groove 21 department, then, punching cutter 9 punches the sample to the blade. The arrangement of the pressing block 20 can reduce manual pressing of the blades, and the operation is more convenient and rapid.

Specifically, the holding part 4 is provided with an arc-shaped limiting strip 22, and a hand grip through hole 23 is formed between the arc-shaped limiting strip 22 and the holding part 4. The pressing part 6 is provided with an anti-skid sleeve 24, and the anti-skid sleeve 24 can be made of rubber and the like.

Example 2

As shown in fig. 6-7, a hand-held type sampling device that punches, including the mutual articulated first dwang 1 in middle part and second dwang 2, be equipped with spring 3 between first dwang 1 and the

second dwang

2, 1 one end of first dwang is equipped with the control portion 4, the other end is equipped with the portion of punching 5, 2 one end of second dwang is equipped with presses the splenium 6, and the other end is equipped with fixed part 7. Specifically, the holding part 4 is provided with an arc-shaped limiting strip 22, and a hand grip through hole 23 is formed between the arc-shaped limiting strip 22 and the holding part 4. The pressing part 6 is provided with an anti-slip sleeve 24, and the anti-slip sleeve 24 can be made of rubber and the like. When the blade punching and pressing device is used, four fingers penetrate through the hand grabbing through hole 23, the thumb presses the pressing part 6, the four fingers and the thumb are combined to press the holding part 4 and the pressing part 6, the distance between the holding part 4 and the pressing part 6 is reduced, the punching part 5 can be close to the fixing part 7, and the blade placed on the fixing part 7 is punched and sampled.

Specifically, the punching portion 5 includes a punching plate 8 and two punching blades 9, and two punching blades 9 are provided on the punching plate 8, but in other embodiments, more punching blades 9 may be provided. Specifically, 8 one ends of the punching plates are connected with the first rotating rod 1, the punching blades 9 are arranged on the inner sides of the punching plates 8, and the punching blades 9 are detachably connected with the punching plates 8 through threaded connecting parts 10. The punching knives 9 with different specifications and sizes can be replaced according to the requirements, and more use requirements are met. The two perforating knives 9 on the perforating plate 8 can be set to be the same specification, also can be set to be different specifications, and the height of the perforating knife 8 close to the hinge point can be selected to be shorter.

Preferably, the punching device further comprises a pushing block 11, wherein the pushing block 11 is connected with the top of the inner side of the punching blade 9 through a spring 3, and the end part of the pushing block 11 is flush with the blade edge of the punching blade 9. When the punching knife 9 punches and samples the leaf tissue, the pushing block 11 can push the cut leaf tissue outwards to the centrifugal tube, and the sampling efficiency is further improved. The push block 11 is fixed with the perforating knife 9 through the spring 3, has certain elasticity and is not easy to damage the leaf tissue.

Specifically, the fixing portion 7 includes a first fixing ring 12 and a second fixing ring 13 hinged to each other, the first fixing ring 12 and the second fixing ring 13 of this embodiment are different from those of embodiment 1 in structure, the first fixing ring 12 and the second fixing ring 13 of this embodiment are both in a double-ring structure, and the hinge point 14 of the first fixing ring 12 and the second fixing ring 13 is disposed at an end portion. With pin joint 14 as separating, first solid fixed ring 12 one end with second dwang 2 links to each other, and the other end is equipped with the first clamping part 15 of concave arc shape, the solid fixed ring 13 one end of second is equipped with pressing piece 16, and the other end is equipped with concave arc shape second clamping part 17, pressing piece 16 with be equipped with spring 3 between the second dwang 2, first clamping part 15 and second clamping part 17 enclose and become centrifuging tube and place hole 18. The number of the centrifuge tube placing holes 18 in this embodiment is two, but of course, a larger number of centrifuge tube placing holes 18 may be provided in other embodiments. In use, a centrifuge tube is placed within the centrifuge tube placement hole 18. The blades are placed on the fixing part 7 above the tube opening of the centrifugal tube, the pressing part 6 and the holding part 4 are pressed by hands, the punching knife 9 can punch and sample the blades, and the taken blade tissues are pushed into the centrifugal tube through the pushing sheet.

The punching device further comprises a pressing block 20, wherein the pressing block 20 is fixed with the punching plate 8 and arranged on the periphery of the punching blade 9, the pressing part 6 is annular, the height of the pressing block 20 is higher than the blade of the punching blade 9, and the fixing part 7 is provided with a pressing groove 21 corresponding to the position of the pressing block 20. During the use, place the fixed part 7 top with the blade and cover the centrifuging tube mouth of pipe, after the operation of beginning to press, press the briquetting 20 on the punching plate 8 and contact the blade earlier to fix the blade in pressing groove 21 department, then, punching cutter 9 punches the sample to the blade. The arrangement of the pressing block 20 can reduce manual pressing of the blades, and the operation is more convenient and rapid.

In use, a centrifuge tube is placed within the centrifuge tube placement hole 18. And then the blade is placed on the fixed part 7 above the nozzle of the centrifugal tube. The blade can be fixed by pressing the pressing portion 6 and the holding portion 4 with a hand and pressing the blade into the pressing groove 21 with the pressing block 20. Meanwhile, the punching knife 9 can punch and sample the blade, and the taken blade tissue is pushed into the centrifugal tube through the pushing sheet, so that punching and sampling of the blade tissue can be completed.

To sum up, this sampling device refers to the principle of scissors and punches the sample, and the fixed centrifuging tube of accessible fixed part 7 presses the other end of first dwang 1 and second dwang 2 before the use, can realize the sample of punching of blade tissue to the blade tissue that will punch 9 and cut out directly installs in the centrifuging tube, and is simple and convenient to handle swift, efficient. Wherein, fixed part 7 adopts the structure of centre gripping, all is applicable to the centrifuging tube of equidimension not, and the suitability is strong. The problem of leaf tissue sampling complex operation, inefficiency is solved to this device, is particularly suitable for using in plant genome draws the experiment.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A handheld punching and sampling device comprises a first rotating rod and a second rotating rod, wherein the middle parts of the first rotating rod and the second rotating rod are mutually hinged, and a spring is arranged between the first rotating rod and the second rotating rod; second dwang one end is equipped with presses the splenium, and the other end is equipped with the fixed part, the fixed part includes the solid fixed ring of mutual articulated first solid fixed ring and second, first solid fixed ring one end with the second dwang links to each other, and the other end is equipped with the first clamping part of concave arcuation, the solid fixed ring one end of second is equipped with the pressing tablet, and the other end is equipped with concave arcuation second clamping part, the pressing tablet with be equipped with the spring between the second dwang, first clamping part and second clamping part enclose synthetic centrifuging tube and place the hole.

2. The hand-held perforating and sampling device of claim 1 wherein the first and second clamping portions are provided with resilient pads on the inside thereof.

3. The handheld perforating and sampling device as claimed in claim 1, wherein the first fixing ring has two or more first holding portions, and the second fixing ring has two or more second holding portions, that is, two or more centrifuge tube placing holes.

4. The hand-held perforating and sampling device of claim 1 wherein the perforating plate has a retaining groove with internal threads and the connecting portion of the perforating knife has external threads matching the retaining groove.

5. The hand-held perforating and sampling device of claim 4 wherein the perforating knife is a hollow cylinder with an open end, and the cutting edge of the perforating knife is disposed at the open end and away from the end of the fixing portion.

6. The hand-held punch and sample device of claim 5 further comprising a push block connected to the inside of the punch blade by a spring, the end of the push block being flush with the cutting edge of the punch blade.

7. The hand-held punch and sample device of claim 1 wherein the cutting edge of the punch blade is serrated.

8. The hand-held punching and sampling device according to claim 1, further comprising a pressing block fixed to the punching plate and disposed on the outer periphery of the punching blade, wherein the pressing portion is annular or surrounded at intervals in an annular shape, the pressing block is higher than the cutting edge of the punching blade, and the fixing portion is provided with a pressing groove corresponding to the position of the pressing block.

9. The hand-held perforating and sampling device of claim 1 wherein the handle portion is provided with an arc-shaped limiting strip, and a hand-held perforating hole is formed between the arc-shaped limiting strip and the handle portion.

10. The hand-held perforating sampling device of claim 1 wherein the pressing portion is provided with an anti-slip sleeve.