CN210036865U - Anti-corrosion rotary mouth type batcher - Google Patents

Abstract

The utility model discloses an anticorrosive spiral-wound formula batcher relates to quantitative sampling technical field, solves current batcher and makes batcher main part and reagent bottle break away from easily in the use, and fixed insecure and bottleneck junction are easily by the corrosion problem, the utility model discloses a reagent bottle, batcher body and fix the bottle lid on the reagent bottle with the batcher body, its characterized in that: the bottle lid includes bottom, top cap and O type circle, the bottom constitutes for axle center coincidence and big cylinder and the little cylinder two parts that communicate, and big cylinder is provided with the internal thread with the external screw thread matched with of reagent bottle bottleneck, and little cylinder side is equipped with the external screw thread, and the top cap bottom is equipped with the annular groove, is provided with the internal thread on the outer loop lateral wall. The utility model has the advantages of firm connection between the main body of the quantitative device and the reagent bottle, easy installation and difficult corrosion of the connection part.

Description

Anti-corrosion rotary mouth type batcher

Technical Field

The utility model relates to a ration sample technical field, more specifically relate to an anticorrosive spiral shell formula batcher.

Background

At present, liquid batchers in the prior art are divided into an internally-mounted type and an externally-mounted type, and liquid is added by utilizing reciprocating motion of a plunger of a syringe and two one-way pistons to enable liquid to quantitatively and directionally move. The device is suitable for laboratories of hospitals, universities and scientific research departments, and is used for continuously and quantitatively adding various test solutions, radioactive isotopes, biological agents and the like during chemical analysis tests.

Wherein, the external liquid batcher is composed of a liquid storage bottle and a batcher body. The external mounting type is that the syringe needle cylinder with the water outlet pipe and the water inlet pipe of the unidirectional automatic piston is arranged together with the positioning stem and the positioning sleeve with scale marks. The upper surface of the syringe is provided with metal scale marks and a movable positioning sleeve for controlling the accuracy of the amount of the added test solution. The reagent bottle is a glass bottle and is used for storing the test solution.

However, in the prior art, the batcher body of the externally-mounted liquid batcher is tightly plugged with the reagent bottle through a rubber plug or a glass plug, so that the batcher body is easily separated from the reagent bottle in the using process, the fixation is not firm, the potential safety hazard exists, most of the reagents taken by the batcher are strong-oxidizing and strong-corrosive reagents, and the bottle mouth connection part is easily corroded to loosen.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: make the batcher main part break away from with the reagent bottle easily in order to solve current batcher in the use, fixed insecure and bottleneck junction are easily by the problem of corruption, the utility model provides an anticorrosive formula batcher of revolving.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides an anticorrosive spiral-wound formula batcher, includes that the bottleneck has reagent bottle, the batcher body of external screw thread and fixes the bottle lid on the reagent bottle with the batcher body, its characterized in that: the bottle lid includes bottom, top cap and O type circle, bottom from the top down constitutes for axle center coincident little cylinder and big cylinder two parts, and little cylinder top all is equipped with circular recess with big cylinder bottom, and little cylindrical recess bottom is equipped with O type circle and the centre is opened there is through-hole one to be linked together with big cylinder, and the radius of through-hole one is less than the radius of little cylinder recess, and the recess of big cylinder is provided with the internal thread with the external screw thread matched with of reagent bottle bottleneck, and little cylinder side is equipped with the external screw thread, and the top cap center is provided with through-hole two and the bottom is equipped with the annular groove, is provided with internal thread and inner ring embedding on the outer loop lateral wall of annular groove little cylindrical circular recess inboard, the radius of through-hole two is less than the annular groove inner ring radius and the axial lead of the two coincides each.

Further, the batcher body includes a ration section of thick bamboo, plunger and stopper, and a ration section of thick bamboo is including the fluid-discharge tube that marks the scale, and the level of fluid-discharge tube top is outstanding to have a part, fluid-discharge tube bottom intercommunication has the pipette, and the fluid-discharge tube lateral wall stretches out there is the liquid feeding pipe, the plunger inserts in the fluid-discharge tube, and plunger side parallel arrangement has a metal pole, the stopper is fixed on the metal pole, be equipped with the check valve that opens towards the fluid-discharge tube in the pipette, be equipped with the check valve that the fluid-discharge tube was opened towards keeping away from in the liquid feeding pipe, two check valves have injectd the.

Furthermore, the surface of the part of the quantitative cylinder, which is in contact with the bottle cap, is a frosted surface, and the surface of the plunger is a frosted surface.

Furthermore, the O-shaped ring is made of fluorine-containing rubber, the top cover and the bottom cover are made of PP, and the fluorine-containing rubber and the PP are both excellent corrosion-resistant materials.

Furthermore, the large cylindrical part of the bottom cover is provided with a third through hole for keeping the pressure in the bottle consistent with the external atmospheric pressure.

Furthermore, the reagent bottle is provided with a thick bottom, so that the stability can be enhanced; and a transparent or brown reagent bottle is selected according to whether the contained reagent is easily decomposed by light.

The utility model discloses a theory of operation does:

firstly, the O-shaped ring is placed in the annular groove of the top cover, then the top cover is screwed on the bottom cover, the assembly is screwed on the reagent bottle after the pipette of the quantitative cylinder penetrates through the first through hole of the top cover and the second through hole of the bottom cover, and finally the plunger is inserted into the liquid discharge pipe of the quantitative cylinder, and the installation is finished. Because plunger and quantitative section of thick bamboo are the glass material, can produce the error during glass shaping, so the stopper is leaving the factory according to the specific size adjustment stopper of the quantitative section of thick bamboo position on the metal pole of each installation, and the rigidity of later stopper can not remove.

When the reagent in the reagent bottle is sucked, the plunger is lifted to reach the designated scale of the required reagent volume, the reagent is sucked into the pipette and flows into the liquid discharge pipe, then the plunger is pressed down, and the reagent passes through the liquid discharge pipe to reach the external container due to the one-way valve arranged in the pipette.

The utility model has the advantages as follows:

1. the utility model discloses a spiral shell type bottle lid of combination, bottom and top cap, bottom and reagent bottle are threaded connection, firm in connection and easy installation.

2. Because the reagent that adopts the batcher to take is the strong corrosive reagent mostly, and reagent volatilizees in the bottle and can constantly corrode the bottle lid, causes the junction of batcher and reagent bottle to take place not hard up, consequently bottom and top cap adopt the PP material to make, and be provided with the O type circle of fluorine-containing rubber material between bottom and top cap, PP and fluorine-containing rubber are corrosion-resistant material, have prevented effectively that the bottle lid from being corroded by the reagent.

3. The surface of the contact part of the quantifying cylinder and the bottle cap and the surface of the plunger are both provided with frosted surfaces, so that the surface friction coefficient is increased, the quantifying cylinder is prevented from slipping to make the device unstable when a reagent is taken, and the plunger is prevented from slipping to make the reagent taking amount inaccurate.

4. The utility model discloses a stopper is according to the specific size adjustment stopper position on the metal pole of the quantitative section of thick bamboo of each installation when dispatching from the factory, and the rigidity of later stopper can not remove, has avoided the error of reagent volume of getting.

5. The top of the large cylindrical part of the bottom cover is provided with a through hole III serving as a vent hole, so that the pressure inside and outside the reagent bottle is kept consistent, and the plunger is freely pulled to take the reagent.

Drawings

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

FIG. 2 is a schematic view of the bottom cover structure;

FIG. 3 is a schematic view of the top cover construction;

FIG. 4 is a schematic view of an O-ring configuration;

FIG. 5 is a schematic view of a quantifying cartridge;

FIG. 6 is a schematic view of a plunger construction;

FIG. 7 is a schematic view of a stopper structure;

reference numerals: 1-reagent bottle; 2-bottle cap; 21-a top cover; 22-a bottom cover; 23-O-ring; 3-a batcher body; 31-a dosing cylinder; 311-liquid outlet pipe; 312-drain; 313-a one-way valve; 314-a pipette; 32-a plunger; 33-a limiting block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

Example 1

As shown in fig. 1 to 4, the present embodiment provides an anti-corrosion screw-on type quantitative device, which includes a reagent bottle 1 with an external thread on the mouth, a quantitative device body 3, and a bottle cap 2 for fixing the quantitative device body 3 on the reagent bottle 1, and is characterized in that: bottle lid 2 includes bottom 21, top cap 22 and O type circle 23, bottom 21 from the top down constitutes for axle center coincident little cylinder and big cylinder two parts, and little cylinder top all is equipped with circular recess with big cylinder bottom, and little cylindrical recess bottom is equipped with O type circle 23 and the centre is opened there is through-hole one to be linked together with big cylinder, and the radius of through-hole one is less than the radius of little cylinder recess, and the recess of big cylinder is provided with the internal thread that matches with the external screw thread of 1 bottleneck of reagent bottle, and little cylinder side is equipped with the external screw thread, and top cap 22 center is provided with through-hole two and the bottom is equipped with the annular groove, is provided with internal thread and inner ring embedding on the outer loop lateral wall of annular groove little cylindrical circular recess inboard, the radius of through-hole two is less than the radius of annular groove inner ring and the axial lead of the two coincides each.

Example 2

As shown in fig. 5 to 7, this embodiment is further improved on the basis of embodiment 1, and specifically, the dosing device body includes a dosing cylinder 31, a plunger 32 and a stopper 33, the dosing cylinder 31 includes a discharge tube 312 marked with scales, a part of the top of the discharge tube 312 protrudes horizontally, the bottom of the discharge tube 312 is communicated with a pipette 314, a liquid adding tube 311 extends out from the side wall of the discharge tube 312, the plunger 32 is inserted into the discharge tube 312, a metal rod is arranged in parallel on the side surface of the plunger 32, the stopper 33 is fixed on the metal rod, a check valve 313 opened toward the discharge tube is arranged in the pipette 314, and a check valve 313 opened away from the discharge tube is arranged in the liquid adding tube 311.

Example 3

As shown in fig. 2 and 4 to 6, the present embodiment is further improved from embodiment 1 and embodiment 2, specifically, the surface of the portion of the dosing cylinder 31 contacting the bottle cap 2 is a frosted surface, and the surface of the plunger 32 is a frosted surface.

The O-shaped ring 23 is made of fluorine-containing rubber, and a through hole is formed in the top of the large cylindrical part of the bottom cover 21.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an anticorrosive spiral-wound formula batcher, includes that the bottleneck has reagent bottle (1) of external screw thread, batcher body (3) and fixes bottle lid (2) on reagent bottle (1) with batcher body (3), its characterized in that: bottle lid (2) include bottom (21), top cap (22) and O type circle (23), bottom (21) from the top down constitutes for axle center coincidence's little cylinder and big cylinder two parts, and little cylinder top all is equipped with circular recess with big cylinder bottom, and little cylindrical recess bottom is equipped with O type circle (23) and middle opening has through-hole one to be linked together with big cylinder, and the radius of through-hole one is less than the radius of little cylinder recess, and the recess of big cylinder is provided with the external screw thread matched with internal thread with reagent bottle (1) bottleneck, and little cylinder side is equipped with the external screw thread, and top cap (22) center is provided with through-hole two and the bottom is equipped with the annular groove, is provided with internal thread and inner ring embedding on the outer loop lateral wall of annular groove little cylindrical circular recess inboard, the radius of through-hole two is less than the radius of annular groove inner ring and the axial lead coincidence of the two each other.

2. The anti-corrosion screw-on doser of claim 1, wherein: the quantitative device body comprises a quantitative cylinder (31), a plunger (32) and a limiting block (33), the quantitative cylinder (31) comprises a liquid discharge pipe (312) marked with scales, the top of the liquid discharge pipe (312) protrudes horizontally to form a part, the bottom of the liquid discharge pipe (312) is communicated with a liquid suction pipe (314), the liquid suction pipe (314) penetrates through a first through hole and a second through hole to be inserted into a reagent bottle (1), a liquid adding pipe (311) extends out of the side wall of the liquid discharge pipe (312), the plunger (32) is inserted into the liquid discharge pipe (312), a metal rod is arranged on the side face of the plunger (32) in parallel, the limiting block (33) is fixed on the metal rod, a one-way valve (313) opened towards the liquid discharge pipe is arranged in the liquid suction pipe (314), and a one-way valve (313) opened towards the liquid discharge.

3. The anti-corrosion screw-on doser of claim 2, wherein: the surface of the contact part of the quantitative cylinder (31) and the bottle cap (2) is a frosted surface, and the surface of the plunger (32) is a frosted surface.

4. The anti-corrosion screw-on doser of claim 1, wherein: the O-shaped ring (23) is made of fluorine-containing rubber, and the top cover (22) and the bottom cover (21) are made of PP.

5. The anti-corrosion screw-on doser of claim 1, wherein: the large cylindrical part of the bottom cover (21) is provided with a third through hole.

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