CN212188089U

CN212188089U - Fixing device for filtering protein sample

Info

Publication number: CN212188089U
Application number: CN202020603262.8U
Authority: CN
Inventors: 牛晓旭; 张文婧; 赵巧辉; 李桂林; 付光宇
Original assignee: Zhengzhou Immuno Biotech Co Ltd
Current assignee: Zhengzhou Immuno Biotech Co Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-12-22
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a fixing device for filtering protein samples, which comprises a box body, wherein the front wall of the box body is a front opening door hinged on the box body, and the top wall of the box body is provided with a clamping hole with the aperture matched with the outer diameter of a tube body of an injector for clamping and fixing the longitudinally inserted injector; in addition, the device also comprises a flexible pressing part which is pressed against the tail end of the push handle of the injector, the upper surface of the flexible pressing part is of a cambered surface structure which is matched and attached with the palm center of a human body, and a clamping groove matched with the tail end of the push handle of the injector is formed in the bottom surface of the flexible pressing part. The utility model has the advantages of simple structure, easy operation, low processing cost, safety and practicality. Avoid pressing of handheld syringe and finger, realize the finger and exert oneself to the conversion that the palm exerts oneself, increase lifting surface area makes the operation save time more, laborsaving, has effectively solved the experimenter and has gripped the hand ache phenomenon that the filtration brought for a long time, makes the experiment develop smoothly, the efficient.

Description

Fixing device for filtering protein sample

Technical Field

The utility model belongs to the technical field of laboratory filter equipment technique and specifically relates to a fixing device is used in filtration of protein sample is related to.

Background

At present, column chromatography is often involved in the protein sample purification process. In order to protect the effectiveness of the filler in the process of column chromatography, whether a sample or a reagent needs to be filtered before being loaded on the column; in order to avoid the loss of sample solution and negative pressure damage to protein structure in the filtering process, the protein sample is filtered by manually filtering the protein sample by adopting a disposable syringe and a disposable filter. In the actual operation process, because protein sample viscosity is great, it is very hard to lead to single finger to bulldoze the syringe operation, and it is longer to consume time when filtering a large amount of protein sample solution to the container that connects the sample greatly does not have specific protection and fixed in operation process, leads to the unexpected risk of unrestrained extremely high, and whole operation process is difficult to control, seriously influences the experiment progress.

Disclosure of Invention

The utility model aims to provide a simple structure, easy and simple to handle's protein sample filters and uses fixing device.

In order to achieve the above purpose, the utility model can adopt the following technical proposal:

the utility model discloses a fixing device for filtering protein samples, which comprises a box body, wherein the front wall of the box body is a front opening door hinged on the box body, and the top wall of the box body is provided with a clamping hole with the aperture matched with the outer diameter of a tube body of an injector for clamping and fixing the longitudinally inserted injector; in addition, the device also comprises a flexible pressing part which is pressed against the tail end of the pushing handle of the injector, the upper surface of the flexible pressing part is of a cambered surface structure which is matched and attached with the palm center of a human body, and the bottom surface of the flexible pressing part is provided with a clamping groove matched with the tail end of the pushing handle of the injector.

A plurality of clamping holes with different apertures are formed in the top wall of the box body at intervals, and each clamping hole corresponds to the diameter of a syringe with one type; a sleeve for stabilizing the syringe extends downwards vertically on the lower opening edge of each clamping hole; and the upper surface of the bottom wall of the box body is provided with a sample container mark which corresponds to the clamping hole in an adaptive manner.

And suckers for fixing the box body are arranged at four corners of the lower surface of the bottom wall of the box body.

And the door opening side of the front door is provided with a fixed magnet, and the box body is provided with an attraction block matched with the fixed magnet.

A grab handle convenient to hold is arranged on the outer side wall of the front opening door close to the opening side.

A clamping device for fixing the sample container is arranged on the upper surface of the bottom wall of the box body; the clamping device comprises a first horizontal slide way arranged on the upper surface of the bottom wall of the box body along the length direction of the box body and a second horizontal slide way arranged on the upper surface of the bottom wall of the box body along the width direction of the box body, a pair of first stop rods consistent with the width direction of the box body are arranged in the first horizontal slide way in a sliding mode, a pair of second stop rods consistent with the length direction of the box body are arranged in the second horizontal slide way in a sliding mode, and the first stop rods penetrate through the lower portion of the second stop rods; the first horizontal slide ways are symmetrically arranged at the front edge and the rear edge of the upper surface of the bottom wall of the box body, and the second horizontal slide ways are symmetrically arranged at the left edge and the right edge of the upper surface of the bottom wall of the box body.

The utility model has the advantages of simple structure, easy operation, low processing cost, safety and practicality. The longitudinally inserted syringe is fixed through the clamping hole formed in the top wall of the box body, and the pushing of the syringe push handle is realized by matching with the flexible pressing part, so that the syringe is prevented from being held by hands and being pressed by fingers, the conversion from finger force exertion to palm force exertion is realized, the stress area is increased, the operation is more time-saving and labor-saving, the hand ache phenomenon caused by long-time holding and filtering of experimenters is effectively avoided, and the experiment is smoothly and efficiently developed; in addition, the whole filtering process is sealed in the box body, effective protection is formed through the box body, and splashing and accidental collision of sample solution are avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, the fixing device for filtering protein samples of the present invention comprises a box body 1, wherein the front wall of the box body 1 is a front opening door 2 hinged thereto, and the box body 1 and the front opening door 2 are both made of hard, non-deformable transparent toughened glass, so that the whole filtering process can be observed conveniently and clearly while the supporting and fixing ability of the box body is enhanced; the door opening side of the front opening door 2 is provided with a suction fixed magnet 10, the outer side wall of the front opening door 2 close to the door opening side is provided with a grab handle 12 which is convenient to hold, and the box body 1 is provided with a suction block 11 matched with the suction fixed magnet 10, so that the front opening door 2 is convenient to loosen and close; in order to stably place the box body 1, the four corners of the lower surface of the bottom wall of the box body 1 are also provided with suckers 9 for fixing the box body 1.

The top wall of the box body 1 is provided with a clamping hole 4 with the aperture matched with the outer diameter of the syringe 3, namely, the aperture of the clamping hole 4 is larger than or equal to the outer diameter of the syringe 3, and meanwhile, the length of the aperture of the clamping hole 4 is smaller than the length of a handheld flange at the tail end of the syringe 3, so that the syringe 3 can be longitudinally inserted and clamped in the clamping hole 4. In addition, a plurality of clamping holes 4 can be formed in the top wall of the box body 1 at intervals, the hole diameters of the clamping holes 4 are different, and each clamping hole 4 corresponds to the pipe diameter of the injector 3 of one type; in order to further enhance the stability of the injector 3 inserted into the clamping holes 4, a sleeve 7 can be vertically and downwardly extended from the lower opening edge of each clamping hole 4, and the inner diameter of each sleeve 7 is consistent with the aperture of the corresponding clamping hole 4; still can set up the sample container sign 8 that corresponds with card hole 4 adaptation on the diapire upper surface of box body 1 simultaneously, make that operating personnel can be light place the accurate of sample container 17 on corresponding the position.

In addition, the device also comprises a flexible pressing part 5 which is pressed against the tail end of the push handle of the injector 3, the upper surface of the flexible pressing part 5 is of a cambered surface structure which is matched and attached with the palm of the human hand, and the bottom surface of the flexible pressing part 5 is provided with a clamping groove 6 matched with the tail end of the push handle of the injector 3; the finger is forced to the conversion that the palm is forced through the flexible pressing part 5, the stress area is increased, the operation is more time-saving and labor-saving, and the hand ache phenomenon caused by long-time holding and filtering of experimenters is effectively avoided.

In order to enable a sample container 17 placed in an inner cavity of the box body 1 to be stably placed, a clamping device for fixing the sample container 17 is arranged on the upper surface of the bottom wall of the box body 1, the clamping device comprises a first horizontal slide way 13 arranged on the upper surface of the bottom wall of the box body 1 along the length direction of the box body 1 and a second horizontal slide way 14 arranged on the upper surface of the bottom wall of the box body 1 along the width direction of the box body 1, the first horizontal slide way 13 is symmetrically provided with two first horizontal slide ways which are respectively positioned at the front edge and the rear edge of the upper surface of the bottom wall of the box body 1, and the second horizontal slide way 14 is symmetrically provided with two second horizontal slide ways which are respectively; a pair of first stop rods 15 which are consistent with the width direction of the box body 1 are arranged in the first horizontal slide way 13 in a sliding mode, a pair of second stop rods 16 which are consistent with the length direction of the box body 1 are arranged in the second horizontal slide way 14 in a sliding mode, the first stop rods 15 penetrate through the lower portions of the second stop rods 16, and the outer edges of the sample containers 17 are clamped and fixed through the first stop rods 15 and the second stop rods 16 which are arranged in pairs.

When in use, the device is placed on the experiment operation table surface and is sucked and fixed through the sucking disc 9; then, selecting a corresponding clamping hole 4 to insert according to the specification of the injector 3, opening the front opening door 2, installing a disposable filter 18 on the liquid outlet end of the injector 3, accurately placing a sample container 17 on a corresponding sample container mark 8, and clamping and fixing the sample container 17 by sliding two first stop rods 15 and two second stop rods 16; then the front opening door 2 is closed, and the flexible pressing part 5 is arranged at the tail end of the pushing handle of the injector 3, so that the pushing handle can be pushed downwards with hands to complete the filtration of the protein sample in the injector 3, and the filtered protein sample can be collected in the sample container 17 for subsequent use.

Claims

1. The utility model provides a protein sample filters uses fixing device, includes box body (1), its characterized in that: the front wall of the box body (1) is a front opening door (2) hinged to the front wall, and the top wall of the box body (1) is provided with a clamping hole (4) with the aperture matched with the outer diameter of the tube body of the injector (3) and used for clamping and fixing the longitudinally inserted injector (3); the device is characterized by further comprising a flexible pressing part (5) which is pressed against the tail end of the pushing handle of the injector (3), the upper surface of the flexible pressing part (5) is of a cambered surface structure which is matched and attached with the palm center of a human body, and a clamping groove (6) matched with the tail end of the pushing handle of the injector (3) is formed in the bottom surface of the flexible pressing part (5).

2. The protein sample filtration fixture according to claim 1, wherein: the top wall of the box body (1) is provided with a plurality of clamping holes (4) with different apertures at intervals, and each clamping hole (4) corresponds to the pipe diameter of the injector (3) of one type.

3. The protein sample filtration fixture according to claim 2, wherein: a sleeve (7) used for stabilizing the syringe (3) extends vertically and downwards on the lower opening edge of each clamping hole (4).

4. The protein sample filtration fixture according to claim 2, wherein: and a sample container mark (8) which corresponds to the clamping hole in an adaptive manner is arranged on the upper surface of the bottom wall of the box body (1).

5. The protein sample filtration fixture according to claim 1, wherein: suction cups (9) used for fixing the box body (1) are arranged at the four corners of the lower surface of the bottom wall of the box body (1).

6. The protein sample filtration fixture according to claim 1, wherein: the door opening side of the front door (2) is provided with an absorption fixed magnet (10), and the box body (1) is provided with an absorption block (11) matched with the absorption fixed magnet (10).

7. The protein sample filtration fixture according to claim 1, wherein: a grab handle (12) which is convenient to hold is arranged on the outer side wall of the front opening door (2) close to the opening side.

8. The protein sample filtration fixture according to claim 1, wherein: the upper surface of the bottom wall of the box body (1) is provided with a clamping device for fixing a sample container.

9. The protein sample filtration fixture according to claim 8, wherein: the clamping device comprises a first horizontal slide way (13) which is arranged on the upper surface of the bottom wall of the box body (1) along the length direction of the box body, and a second horizontal slide way (14) which is arranged on the upper surface of the bottom wall of the box body (1) along the width direction of the box body (1), wherein a pair of first stop rods (15) which are consistent with the width direction of the box body (1) are arranged in the first horizontal slide way (13) in a sliding manner, a pair of second stop rods (16) which are consistent with the length direction of the box body (1) are arranged in the second horizontal slide way (14) in a sliding manner, and the first stop rods (15) penetrate through the lower part of the second stop rods (16).

10. The protein sample filtration fixture according to claim 9, wherein: the two first horizontal slideways (13) are symmetrically arranged and are respectively positioned at the front edge and the rear edge of the upper surface of the bottom wall of the box body (1), and the two second horizontal slideways (14) are symmetrically arranged and are respectively positioned at the left edge and the right edge of the upper surface of the bottom wall of the box body (1).