CN202983698U - U-shaped pipe - Google Patents
U-shaped pipe Download PDFInfo
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- CN202983698U CN202983698U CN 201220699222 CN201220699222U CN202983698U CN 202983698 U CN202983698 U CN 202983698U CN 201220699222 CN201220699222 CN 201220699222 CN 201220699222 U CN201220699222 U CN 201220699222U CN 202983698 U CN202983698 U CN 202983698U
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- pipe
- piston
- air intake
- shaped
- pistons
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Abstract
The utility model provides a U-shaped pipe which comprises a U-shaped pipe body, wherein side pipes at two sides of the pipe body are cylindrical, and are respectively provided with a gas inlet branch pipe and a gas outlet branch pipe. The U-shaped pipe also comprises cylindrical pistons which are in sealing jointed with the inner walls of the side pipes at two sides, wherein the height of the pistons meets the conditions that when the upper ends of the pistons extend out of a pipe opening of the corresponding side pipe, the lower ends of the pistons are lower than the corresponding gas inlet branch pipe or gas outlet branch pipe; and the upper ends of the pistons are of a solid cylinder shape, gaps are formed in the lower ends of the pistons, the gaps are larger than the pipe openings of the air inlet branch pipes and the gas outlet branch pipes, and parts of the lower ends of the pistons, which are not provided with the gaps, and arc-shaped surfaces respectively facing towards the inner walls of the side pipes at two sides are also larger than the pipe openings of the gas inlet branch pipes and the gas outlet branch pipes. The U-shaped pipe has the beneficial effects that through the gaps in the lower ends of the pistons and the parts without the gaps, the ventilation and sealing of the U-shaped pipe are realized without need of other devices, the simplicity is achieved in operation and the analysis accuracy is high.
Description
Technical field
The utility model relates to chemistry and chemical industry tester field, is specifically related to a kind of U-shaped pipe.
Background technology
U-shaped pipe is a kind of instrument commonly used in chemical experiment, is generally U-shaped transparent glass tube or plastic tube, and multiple large ting model is arranged, can carrying liquid or solid.U-shaped pipe can use in the number of chemical experiment, and solid driers such as soda lime, anhydrous calcium chloride can be contained in and is used for dry in U-shaped pipe or absorbs gas.When needs are asked the content of high-load carbon dioxide in some samples, need to be with filling with U-shaped pipe the reagent that soda lime or alkali asbestos etc. are easy to carbon dioxide reaction Formed hydrochlorate, absorb of poor quality before and after gas by it, and try to achieve out the amount of carbon dioxide in sample.The U-shaped pipe racks of selling in the market has side pipe, and both ends open piston in addition, seal port when analyzing, be hedged off from the outer world, but after the carbon dioxide that has reacted in having absorbed sample, with after connecting the emulsion tube of ventilation or the silicone tube ventilation arm from both sides in reaction unit and taking down, must put again immediately trifle emulsion tube or silicone tube, and with fixtures such as spring clips, sebific duct two ends are clamped, its side pipe mouth is isolated from the outside, reach the effect of sealing.This troublesome poeration, speed is slow when operation, perhaps a small amount of carbon dioxide in sebific duct can with U-shaped pipe in the reagent reacting of absorbing carbon dioxide, make analysis result inaccurate, and add spring clip and emulsion tube or silicone tube, can increase the uncertainty in twice weighing, thereby also affect the degree of accuracy of analyzing.
Summary of the invention
The purpose of this utility model is, for the above-mentioned deficiency that has U-shaped pipe existence now, provides a kind of suitable absorption gravimetric detemination, and is easy and simple to handle, and the little U-shaped pipe of uncertainty of introducing in operation.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be:
A kind of U-shaped pipe comprises the body that is U-shaped, and the side pipe on body both sides is cylindric, and the both sides side pipe is offered respectively an air intake branch and gone out gas branch pipe; Also comprise and the piston of the cylindrical shape of both sides side pipe inner wall sealing break-in, the height of described piston satisfies: when the mouth of pipe of corresponding side pipe was stretched out in the piston upper end, its lower end was lower than the air intake branch of correspondence or go out gas branch pipe; The upper end of described piston is the solid cylinder shape, the lower end of described piston offers a breach, the size of described breach is than described air intake branch and to go out the mouth of pipe of gas branch pipe large, and the piston lower end not the gap part, respectively towards the cambered surface of both sides side pipe inwall also than described air intake branch with to go out the mouth of pipe of gas branch pipe large.
In such scheme, the upper end of described piston is provided with piston cap solid, that be convenient to its rotation.
In such scheme, described breach is the cylinder of the lower a part of arc length of piston lower end cylinder cutting, the height of described cylinder and arc length all greater than correspondence its air intake branch or go out the nozzle diameter of gas branch pipe; And the piston lower end not the height of the cylinder of gap part and arc length also all greater than air intake branch or go out the nozzle diameter of gas branch pipe.
In such scheme, described breach is that piston lower end cylinder is cut sth. askew from the side and formed, and the diameter of a circle that breach projects to the side pipe inwall is greater than air intake branch or go out the nozzle diameter of gas branch pipe.
In such scheme, the described piston lower end center of gap part does not offer a hollow cylinder.
Operation principle of the present utility model, by sealing left piston and the right piston of the cylindrical shape of break-in with U-shaped pipe left side pipe and right side inside pipe wall, rotate left piston and right piston to different positions, realize ventilation and the sealing of U-shaped pipe: when (1) need to ventilate when U-shaped pipe, the barbed portion of left piston and right piston lower end is aimed at respectively air intake branch or is gone out the mouth of pipe of gas branch pipe, forms a unimpeded gas passage of ventilation; (2) when the absorption reagent in U-shaped pipe with GAS ABSORPTION is complete when no longer needing gas communication, with left piston and right piston lower end not the part of gap rotate respectively to air intake branch and the mouth of pipe one side that goes out gas branch pipe it sealed, to connect again the emulsion tube of U-shaped pipe ventilation or silicone tube from the air intake branch of both sides and go out gas branch pipe and take down, it is salable intact that U-shaped pipe need not to add other device, simple to operate, eliminated other influence factor of carbon dioxide etc. in the external world, with high accuracy.
The beneficial effects of the utility model are: by the breach of piston lower end and the part of gap not, need not to add other device, realize ventilation and the sealing of U-shaped pipe, and simple to operate, with high accuracy.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
In figure: the 1-body, 2-manages in the left side, and 3-manages on the right side, the 4-air intake branch, 5-goes out gas branch pipe, 6-left piston, the right piston of 7-, 8-piston cap, 9-emulsion tube or silicone tube, 10-absorption reagent.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is described further.
With reference to Fig. 1 ~ shown in Figure 2, U-shaped pipe described in the utility model comprises the body 1 that is U-shaped, and left side pipe 2 and the right side pipe 3 on body 1 both sides are cylindric, and left side pipe 2 and right side pipe 3 are offered respectively an air intake branch 4 and go out gas branch pipe 5; Also comprise left piston 6 and the right piston 7 of managing respectively the cylindrical shape of 3 inner wall sealing break-ins with left side pipe 2 and right side, the height of described left piston 6 and right piston 7 satisfies: when the mouth of pipe of left side pipe 2 is stretched out in left piston 6 upper ends, its lower end is lower than air intake branch 4, when the mouth of pipe of right side pipe 3 was stretched out in right piston 7 upper ends, its lower end was lower than going out gas branch pipe 5; The upper end of described left piston 6 and right piston 7 is the solid cylinder shape, the lower end of described left piston 6 and right piston 7 all offers a breach, the size of described breach is than described air intake branch 4 and to go out the mouth of pipe of gas branch pipe 5 large, and left piston 6 and right piston 7 lower ends not the gap part, respectively towards the cambered surface of left side pipe 2 and right side pipe 3 inwalls also than described air intake branch 4 with to go out the mouth of pipe of gas branch pipe 5 large.
The upper end of described left piston 6 and right piston 7 is equipped with piston cap 8 solid, that be convenient to its rotation.
As shown in Figure 1, described breach is the cylinder of the lower a part of arc length of left piston 6 or right piston 7 lower end cylinders cuttings, the height of described cylinder and arc length all greater than correspondence its air intake branch 4 or go out the nozzle diameter of gas branch pipe 5; And left piston 6 or right piston 7 lower ends not the height of the cylinder of gap part and arc length also all greater than air intake branch 4 or go out the nozzle diameter of gas branch pipe 5.
As shown in Figure 2, described breach is that left piston 6 or right piston 7 lower end cylinders are cut sth. askew from the side and formed, the diameter of a circle that breach projects to left side pipe 2 or right side pipe 3 inwalls is greater than air intake branch 4 or go out the nozzle diameter of gas branch pipe 5, and described left piston 6 and right piston 7 lower ends do not offer a hollow cylinder in the center of gap part.
During work, by with left piston 6 and the right piston 7 of the cylindrical shape of U-shaped pipe left side pipe 2 and right side pipe 3 inner wall sealing break-ins, rotate left piston 6 and right piston 7 to different positions, realize ventilation and the sealing of U-shaped pipe: when (1) need to ventilate when U-shaped pipe, the barbed portion of left piston 6 and right piston 7 lower ends is aimed at respectively air intake branch 4 or is gone out the mouth of pipe of gas branch pipe 5, forms a unimpeded gas passage of ventilation; (2) when the absorption reagent 10 in U-shaped pipe with GAS ABSORPTION is complete when no longer needing gas communication, with left piston 6 and right piston 7 lower ends not the part of gap rotate respectively to air intake branch 4 and the mouth of pipe one side that goes out gas branch pipe 5 it sealed, to connect again the emulsion tube of U-shaped pipe ventilation or silicone tube 9 from the air intake branch 4 of both sides and go out gas branch pipe 5 and take down, it is salable intact that U-shaped pipe need not to add other device, simple to operate, eliminated other influence factor of carbon dioxide etc. in the external world, with high accuracy.
Above-described is only preferred embodiment of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalence of therefore doing according to the utility model claim changes, and still belongs to protection domain of the present utility model.
Claims (5)
1. a U-shaped pipe, comprise the body that is U-shaped, it is characterized in that: the side pipe on body both sides is cylindric, and the both sides side pipe is offered respectively an air intake branch and gone out gas branch pipe; Also comprise and the piston of the cylindrical shape of both sides side pipe inner wall sealing break-in, the height of described piston satisfies: when the mouth of pipe of corresponding side pipe was stretched out in the piston upper end, its lower end was lower than the air intake branch of correspondence or go out gas branch pipe; The upper end of described piston is the solid cylinder shape, the lower end of described piston offers a breach, the size of described breach is than described air intake branch and to go out the mouth of pipe of gas branch pipe large, and the piston lower end not the gap part, respectively towards the cambered surface of both sides side pipe inwall also than described air intake branch with to go out the mouth of pipe of gas branch pipe large.
2. U-shaped pipe as claimed in claim 1, it is characterized in that: the upper end of described piston is provided with piston cap solid, that be convenient to its rotation.
3. U-shaped pipe as claimed in claim 1 is characterized in that: described breach is the cylinder of the lower a part of arc length of piston lower end cylinder cutting, the height of described cylinder and arc length all greater than correspondence its air intake branch or go out the nozzle diameter of gas branch pipe; And the piston lower end not the height of the cylinder of gap part and arc length also all greater than air intake branch or go out the nozzle diameter of gas branch pipe.
4. U-shaped pipe as claimed in claim 1 is characterized in that: described breach is that piston lower end cylinder is cut sth. askew from the side and formed, and the diameter of a circle that breach projects to the side pipe inwall is greater than air intake branch or go out the nozzle diameter of gas branch pipe.
5. U-shaped pipe as claimed in claim 4 is characterized in that: described piston lower end does not offer a hollow cylinder in the center of gap part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699222 CN202983698U (en) | 2012-12-18 | 2012-12-18 | U-shaped pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699222 CN202983698U (en) | 2012-12-18 | 2012-12-18 | U-shaped pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202983698U true CN202983698U (en) | 2013-06-12 |
Family
ID=48554924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220699222 Expired - Fee Related CN202983698U (en) | 2012-12-18 | 2012-12-18 | U-shaped pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202983698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680133A (en) * | 2017-01-16 | 2017-05-17 | 中国建材检验认证集团股份有限公司 | Carbon dioxide absorbent and determination method of carbon dioxide content |
-
2012
- 2012-12-18 CN CN 201220699222 patent/CN202983698U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680133A (en) * | 2017-01-16 | 2017-05-17 | 中国建材检验认证集团股份有限公司 | Carbon dioxide absorbent and determination method of carbon dioxide content |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20171218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |