CN210826151U

CN210826151U - Rapid sample adding gun for HPV-23 typing virus detection

Info

Publication number: CN210826151U
Application number: CN201921776015.1U
Authority: CN
Inventors: 戴永刚
Original assignee: Jinan Qilu Clinical Laboratory Co ltd
Current assignee: Yantai Xingqi medical laboratory Co.,Ltd.
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-23
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a quick application of sample rifle for HPV-23 typing virus detects, including the first rifle body, the lower lateral wall of the first rifle body is equipped with the sleeve pipe, the sleeve pipe with first cavity intercommunication, the lateral wall cover of sleeve pipe is equipped with the rifle head, the inside wall of the rifle body is pegged graft and is had first piston, the upper surface of first piston is equipped with the limiting plate, the surface of first piston just is located be equipped with first spring between the first limiting plate and the first rifle body, the utility model discloses extrude the first rifle body inside through first piston, make the air in the first rifle body discharge, make first piston reset under the effect of first spring to form the negative pressure in the first rifle body, inhale reagent, extrude the second piston, make the second piston extrude the second rifle body, the air in the second rifle body gets into the blind hole by the pipe at this moment, then gets into first through-hole, and finally enters the interior of the first gun body to form positive pressure, so that the reagent is extruded out.

Description

Rapid sample adding gun for HPV-23 typing virus detection

Technical Field

The utility model relates to the technical field of medical equipment, the specific field is a quick application of sample rifle that is used for HPV-23 typing virus to detect.

Background

At present, high-precision sample injectors produced by Berlin gelman Haim Limited company in West Germany abroad, QYQ-200 liquid taking devices produced by Qingyun instrument factories in Beijing aerospace industry department in China and adjustable quantitative liquid injectors produced by Shanghai refinement glass instrument factories all utilize the inherent piston fixed-distance motion of the sample injectors to generate pressure difference to achieve the purposes of liquid absorption and liquid injection. And the screw is used for adjusting the stroke of the piston to determine the required charging amount. In addition, the LWP-500 (A, B, C) series of continuous micro-liquid preparation devices produced by the national Zhejiang Hainine instrument factory push a piston to move by pressing a button on the liquid preparation device through a pressure lever and a piston ejector rod, so that the liquid in the liquid preparation device is discharged. After the press force acting on the button is released, the piston core is reset by the aid of the action of the pressure spring, and after negative pressure is formed in the piston cavity, liquid in the needle cylinder is sucked into the piston cavity to form continuous sample adding. The liquid dispenser can also rotate the quantitative button to enable the stroke screw rod and the cavity to generate relative displacement so as to limit the stroke of the piston core and achieve the purpose of adjusting the liquid adding amount. The sample injectors are designed by utilizing the principle that the relative motion of a piston, a piston ring and a piston cavity generates pressure difference.

In the in-service use process, discover, when needs are to the application of sample of the same kind of liquid many times, need repetitious usage application of sample rifle to sample the back to the reagent, application of sample one by one, very troublesome, and adopt once after the sample, through adjusting application of sample rifle application of sample volume, make the method that single application of sample dose reduces, though can reach once the sample, the purpose of many times application of sample, nevertheless because application of sample rifle's structure, make after the single application of sample, the piston resets, thereby inhale the outside air in the reagent of reserving in the application of sample rifle, thereby form the bubble, make when the application of sample next time, the precision descends greatly, for this reason, provide a quick application of sample rifle that is used for HPV-23 type virus to detect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick application of sample rifle that is used for HPV-23 typing virus to detect to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a quick sample adding gun for HPV-23 typing virus detection comprises a first gun body, wherein a sleeve is arranged on the lower side wall of the first gun body and is communicated with the first gun body, a gun head is sleeved on the outer side wall of the sleeve, a first piston is inserted into the inner side wall of the gun body, a first limiting plate is arranged on the upper surface of the first piston, a first spring is arranged on the outer surface of the first piston and positioned between the first limiting plate and the first gun body, a blind hole is formed in the end surface of the first limiting plate and the upper surface of the first piston in a penetrating manner, a guide pipe is inserted into the inner wall of the blind hole, a second gun body is arranged on the upper surface of the guide pipe and is communicated with the guide pipe, a second spring is arranged on the outer side of the guide pipe and positioned between the first limiting plate and the second gun body, one end of a first through hole is arranged on the side wall of the blind hole corresponding to the lower end of the guide pipe, the other end of first through-hole runs through the lower surface of first piston, the inner wall of the second rifle body is pegged graft and is had the second piston, the upper surface of second piston is equipped with the second limiting plate, the surface of second piston just is located the second limiting plate with be equipped with the third spring between the second rifle body, the inside wall of pipe is equipped with first check valve, the lower surface of second piston is equipped with the one end of second through-hole, the other end of second through-hole runs through the lateral wall of second piston, the inside wall of second through-hole is equipped with the second check valve.

Preferably, the lateral walls of the first limiting plate and the second limiting plate are respectively provided with external threads, the lateral walls of the first limiting plate and the second limiting plate are respectively screwed with a first adjusting knob and a second adjusting knob, the lower surface of the first adjusting knob is in contact with the upper surface of the first gun body, and the lower surface of the second adjusting knob is in contact with the upper surface of the second gun body.

Preferably, the inner lower surface of the blind hole is provided with a sealing gasket.

Preferably, the outer surface of the first gun body is provided with an anti-slip sleeve.

Preferably, the upper surface of the second piston is provided with an anti-slip cap.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a quick application of sample rifle for HPV-23 typing virus detects, extrude first rifle internal portion through first piston, make the air of first rifle internal portion discharge the back, make first piston reset under the effect of first spring, thereby form the negative pressure in first rifle internal portion, inhale reagent, and when needs application of sample, extrude the second piston, make second piston extrusion second rifle body, the internal air of second rifle this moment gets into in the blind hole by the pipe, then get into first through-hole, finally get into first rifle internal portion, form the malleation, thereby extrude reagent, accomplish the application of sample, loose hand back, the second piston resets under the effect of second spring, outside air gets into second through-hole entering second rifle internal portion by the second check valve and accomplishes and resets this moment, and first check valve then prevents that the internal air of first rifle from getting into the second rifle internal, thereby can not form the bubble.

Drawings

Fig. 1 is a schematic view of a front view cross-sectional structure of the present invention;

fig. 2 is a schematic top view of the cross-sectional structure of the present invention.

In the figure: 1-a first gun body, 2-a sleeve, 3-a gun head, 4-a first piston, 5-a first limit plate, 6-a first spring, 7-a blind hole, 8-a guide pipe, 9-a second gun body, 10-a second spring, 11-a first through hole, 12-a second piston, 13-a second limit plate, 14-a third spring, 15-a first one-way valve, 16-a second through hole, 17-a first adjusting knob, 18-a second adjusting knob, 19-a sealing gasket, 20-an anti-skid sleeve, 21-an anti-skid cap and 22-a second one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a quick sample adding gun for HPV-23 typing virus detection comprises a first gun body 1, wherein a sleeve 2 is arranged on the lower side wall of the first gun body 1, the sleeve 2 is communicated with the first gun body 1, a gun head 3 is sleeved on the outer side wall of the sleeve 2, a reagent is stored in the gun head 3 in a sleeved mode, the gun head 3 is a disposable product and is convenient and sanitary to replace after use without cleaning equipment, a first piston 4 is inserted into the inner side wall of the gun body 1, a first limiting plate 5 is arranged on the upper surface of the first piston 4, a first spring 6 is arranged on the outer surface of the first piston 4 and positioned between the first limiting plate 5 and the first gun body 1, the first spring 6 enables the first piston 4 to be pressed downwards to reset the first piston 4, a blind hole 7 penetrates through the end face of the first limiting plate 5 and the upper surface of the first piston 4, a guide pipe 8 is inserted into the inner wall of the blind hole 7, the guide pipe 8 can slide in the blind hole 7, a second gun body 9 is arranged on the upper surface of the guide pipe 8, the second gun body 9 is communicated with the guide pipe 8, a second spring 10 is arranged on the outer side of the guide pipe 8 and between the first limiting plate 5 and the second gun body 9, the guide pipe 8 is reset after sliding in the blind hole 7 through the second spring 10, the elastic modulus of the second spring 10 is smaller than that of the first spring 6, so that when the device is pressed down, the second spring 10 is firstly extruded to generate deformation, the guide pipe 8 cannot move continuously after being contacted with the inner lower surface of the blind hole 7, then the first spring 6 is extruded, one end of a first through hole 11 is arranged at the side wall of the blind hole 7 corresponding to the lower end of the guide pipe 8, and the other end of the first through hole 11 penetrates through the lower surface of the first piston 4, that is, when the device is not squeezed, the guide tube 8 is communicated with the first gun body 1 through the first through hole 11, so that the second gun body 9 is communicated with the first gun body 1, the inner wall of the second gun body 9 is inserted with the second piston 12, the upper surface of the second piston 12 is provided with the second limiting plate 13, the outer surface of the second piston 12 and the position between the second limiting plate 13 and the second gun body 9 are provided with the third spring 14, the elastic modulus of the third spring 14 is the minimum, the inner side wall of the guide tube 8 is provided with the first one-way valve 15, the first one-way valve 15 enables air in the second gun body 2 to flow out to the guide tube 8, the lower surface of the second piston 12 is provided with one end of the second through hole 16, the other end of the second through hole 16 penetrates through the side wall of the second piston 12, the inner side wall of the second through hole 16 is provided with the second one-way valve 22, the second check valve 22 allows the outside air to flow into the inside of the second gun body 9 through the second through hole 16.

Particularly, first limiting plate 5 with the lateral wall of second limiting plate 13 is equipped with the external screw thread respectively, first limiting plate 5 with the lateral wall of second limiting plate 13 has first adjust knob 17 and second adjust knob 18 of spiro union respectively, just first adjust knob 17's lower surface with the upper surface contact of the first rifle body 1, second adjust knob 18's lower surface with the upper surface contact of the second rifle body 9, through adjusting first adjust knob 17 and second adjust knob 18, can adjust first piston 4 with the stroke of second piston 12 to reach the mesh of adjusting sample and application of sample volume.

Specifically, the inner lower surface of the blind hole 7 is provided with a sealing gasket 19, so that after the guide pipe 8 moves downwards, the guide pipe contacts the sealing gasket 19, the second gun body 9 and the first gun body 1 are completely isolated, and air is prevented from entering the first gun body 1 from the second gun body 9, so that the sampling amount is not accurate.

Particularly, the outer surface of the first gun body 1 is provided with an anti-slip sleeve 20, so that the gun is convenient to hold by hands.

Specifically, the upper surface of the second piston 12 is provided with an anti-slip cap 21, which is convenient and practical.

The working principle is as follows: the utility model is used when the sample adding is carried out when HPV-23 typing virus detection is carried out, when the device is used, the second piston 12 is pressed, the elastic modulus of the third spring is minimum at the moment, deformation is generated first, the second piston 12 moves downwards, when the device is contacted with the inner lower surface of the second gun body 9, the device can not move continuously, the second spring 10 is compressed at the moment, the guide pipe 8 moves downwards, the side wall of the guide pipe 8 covers the first through hole 11, the first gun body 1 and the second gun body 9 are isolated, when the guide pipe 8 is contacted with the inner lower surface of the blind hole 7, the first spring 6 is compressed at the moment, the first piston 4 moves relative to the first gun body 1, after the air in the first gun body 1 is discharged by the gun head 3, the gun head 3 is inserted into a test agent to be detected, the extrusion to the second piston 12 is released slowly, at the moment, the first spring 6 begins to reset, so that negative pressure is formed in the first gun body 1, the guide pipe 8 covers the first through hole 11 at this time, so that the first gun body 1 and the second gun body 9 are separated, external air cannot enter the first gun body 1 from the second gun body 9, the sampling amount is more accurate, after a reagent enters the gun head 3, the second spring 10 and the third spring 14 are reset, the check valve can be opened only by a certain pressure, the reagent amount is small, the device is sealed, the reagent cannot flow out, when the sample needs to be added, the second piston 12 is lightly pressed, only the third spring 14 is compressed, at this time, the air enters the first gun body 1 from the first check valve 15 to extrude the reagent, after the third spring 14 is reset, the first check valve 15 is closed, the external air enters the second gun body 9 from the second check valve 22, the air cannot enter from the gun head 3, and bubbles are generated in the reagent.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rapid sample application gun for HPV-23 typing virus detection comprises a first gun body (1), and is characterized in that: the utility model discloses a rifle body, including first rifle body (1), the lower lateral wall of first rifle body (1) is equipped with sleeve pipe (2), sleeve pipe (2) with first rifle body (1) intercommunication, the lateral wall cover of sleeve pipe (2) is equipped with rifle head (3), the inside wall of rifle body (1) is pegged graft and is had first piston (4), the upper surface of first piston (4) is equipped with first limiting plate (5), the surface of first piston (4) just is located first limiting plate (5) with be equipped with first spring (6) between first rifle body (1), the terminal surface of first limiting plate (5) with the upper surface of first piston (4) runs through and is equipped with blind hole (7), the inner wall of blind hole (7) is pegged graft and is had pipe (8), the upper surface of pipe (8) is equipped with second rifle body (9), just second rifle body (9) with pipe (8) intercommunication, the outside of pipe (8) just is located first limiting plate (5) with establish second rifle body (9) between the second rifle body (9) A second spring (10), one end of the side wall of the blind hole (7) corresponding to the lower end of the guide pipe (8) is provided with a first through hole (11), the other end of the first through hole (11) penetrates through the lower surface of the first piston (4), a second piston (12) is inserted into the inner wall of the second gun body (9), a second limiting plate (13) is arranged on the upper surface of the second piston (12), a third spring (14) is arranged on the outer surface of the second piston (12) and between the second limiting plate (13) and the second gun body (9), the inner side wall of the guide pipe (8) is provided with a first one-way valve (15), the lower surface of the second piston (12) is provided with one end of a second through hole (16), the other end of the second through hole (16) penetrates through the side wall of the second piston (12), and a second one-way valve (22) is arranged on the inner side wall of the second through hole (16).

2. The rapid loading gun for HPV-23 typing virus detection according to claim 1, wherein: the lateral wall of first limiting plate (5) with second limiting plate (13) is equipped with the external screw thread respectively, first limiting plate (5) with the lateral wall of second limiting plate (13) spiro union has first adjust knob (17) and second adjust knob (18) respectively, just the lower surface of first adjust knob (17) with the upper surface contact of the first rifle body (1), the lower surface of second adjust knob (18) with the upper surface contact of the second rifle body (9).

3. The rapid loading gun for HPV-23 typing virus detection according to claim 1, wherein: and a sealing gasket (19) is arranged on the inner lower surface of the blind hole (7).

4. The rapid loading gun for HPV-23 typing virus detection according to claim 1, wherein: the outer surface of the first gun body (1) is provided with an anti-slip sleeve (20).

5. The rapid loading gun for HPV-23 typing virus detection according to claim 1, wherein: the upper surface of the second piston (12) is provided with an anti-slip cap (21).