CN214150596U

CN214150596U - Burette

Info

Publication number: CN214150596U
Application number: CN202023337997.XU
Authority: CN
Inventors: 李静; 冯玉蓉; 张哲�; 王炳玲; 狄小丽; 陈明
Original assignee: Hebei Ji'an Testing Service Co ltd
Current assignee: Hebei Ji'an Testing Service Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-07
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a buret's field, concretely relates to buret, including the buret body, the buret body includes the body, body upper end fixedly connected with stock solution bottle, the body is close to stock solution bottle one end and is provided with the cock, is provided with the atmospheric cavity of intercommunication on the cock. The application has the effect of conveniently adding the standard liquid into the burette.

Description

Burette

Technical Field

The present application relates to the field of burettes, and in particular, to a burette.

Background

In vial packaging compatibility testing, a burette is often used. When the burette is used, after the standard liquid in the burette is dripped, if the titration end point is not reached, the standard liquid needs to be added into the burette again.

In view of the above-mentioned related art, the inventors considered that it is inconvenient to add the standard solution again because the open end of the burette is small.

SUMMERY OF THE UTILITY MODEL

In order to conveniently add standard liquid into a burette, the application provides the burette.

The application provides a burette adopts following technical scheme:

the utility model provides a buret, includes the buret body, and the buret body includes the body, body upper end fixedly connected with liquid storage bottle, the body is close to liquid storage bottle one end and is provided with the cock, is provided with the atmospheric cavity of intercommunication on the cock.

By adopting the technical scheme, before the titration experiment, the standard liquid is filled in the tube body and the liquid storage bottle, and after the standard liquid in the tube body is titrated, the cock can be opened, the standard liquid in the liquid storage bottle flows into the tube body, and the titration is continuously carried out. Compared with the prior art, the standard solution can be added more conveniently.

Preferably, the cock comprises a cross column, a channel is arranged on the cross column, the cavity is arranged on the cross column, one end of the cavity is communicated with the atmosphere on one side of the channel, a through hole is arranged on the other end of the cavity, and when the cock is closed, the through hole is communicated with the pipe body.

Through adopting above-mentioned technical scheme, when the spreader rotated to the direction that makes passageway and body vertically, through-hole and body intercommunication to when carrying out the titration experiment, can not cross low because of the pressure in the body, and make the difficult drippage of the interior standard liquid of body.

Preferably, one end of the liquid storage bottle, which is far away from the tube body, is an opening, and a plug is inserted into the opening.

Through adopting above-mentioned technical scheme, can seal the stock solution bottle through the stopper when titrating the experiment, can reduce the influence of air to standard liquid.

Preferably, a communication component for communicating atmosphere is arranged between the plug and the opening.

Through adopting above-mentioned technical scheme, through with stock solution bottle inside and atmosphere intercommunication, can be under the condition that need not take off the stopper, when just can making stock solution bottle liquid inflow body, not influenced by the pressure.

Preferably, the communicating component comprises a groove arranged on one side, close to the pipe body, of the inner wall of the opening, a communicating hole is formed in the plug, one end of the communicating hole is located on one side, far away from the pipe body, of the plug, the other end of the communicating hole is located on the side face of the plug, and the plug is rotated to enable the communicating hole to be communicated with the groove.

Through adopting above-mentioned technical scheme, rotate the stopper and can make intercommunicating pore and recess intercommunication, can make the stock solution bottle inside and atmosphere intercommunication to when making the standard liquid flow in the stock solution bottle internal to the pipe, not influenced by the pressure.

Preferably, the diameter of the end of the opening far away from the tube body is larger than that of the end close to the tube body.

Through adopting above-mentioned technical scheme, can increase the area of contact between stopper and the opening, make the leakproofness between stopper and the opening better.

Preferably, the inner wall of the opening and the side surface of the plug are frosted surfaces.

Through adopting above-mentioned technical scheme, can increase the leakproofness between stopper and the opening.

Preferably, the shape of the liquid storage bottle is square, round or oval.

Through adopting above-mentioned technical scheme, when the stock solution bottle was above the shape, all can reach better stock solution effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. before carrying out the titration experiment, at body and stock solution bottle built-in standard liquid, after the standard liquid titration in the body finishes, can open the cock, with the standard liquid inflow in the stock solution bottle in the body, continue titrating can. Compared with the prior art, the standard solution can be added conveniently;

2. when the transverse column rotates to the direction perpendicular to the channel and the tube body, the through hole is communicated with the tube body, so that standard liquid in the tube body is not easy to drip out due to too low pressure in the tube body when a titration experiment is carried out.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view showing a horizontal pole.

Fig. 3 is a schematic view showing the structure of the stopper.

Fig. 4 is a schematic view showing the structure of the groove.

Description of reference numerals: 1. a burette body; 11. a pipe body; 2. a liquid storage bottle; 21. an opening; 211. a plug; 2111. a communicating hole; 3. a cock; 31. a cross post; 311. a channel; 32. a cavity; 321. a through hole; 4. and (4) a groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses buret, refers to figure 1, including buret body 1, buret body 1 includes

body

11, 11 upper ends fixedly connected with liquid storage bottle 2 of body, and the shape of liquid storage bottle 2 can be square, circular or oval. An opening 21 is arranged at one end of the liquid storage bottle 2 far away from the tube body 11, and a plug 211 is inserted into the opening 21. The tube body 11 is provided with a cock 3 near one end of the liquid storage bottle 2.

When a titration experiment is carried out, standard liquid is filled in the tube body 11, and then a certain amount of standard liquid is stored in the liquid storage bottle 2. After the standard solution in the tube body 11 is titrated, the cock 3 can be opened, the standard solution in the liquid storage bottle 2 flows into the tube body 11, and the titration is continued. Compared with the prior art, the standard solution can be added more conveniently.

As shown in fig. 2, the cock 3 includes a horizontal column 31, a through passage 311 is provided on the horizontal column 31, when the horizontal column 31 is rotated, the passage 311 can be rotated to a direction parallel to the tube 11, at this time, the passage 311 is communicated with both the liquid storage bottle 2 and the tube 11, and the standard liquid in the liquid storage bottle 2 can flow into the tube 11 through the passage 311. The cross column 31 is provided with a cavity 32 perpendicular to the passage 311 at one side of the passage 311, and one end of the cavity 32 is connected to the atmosphere and the other end is provided with a through hole 321. When the cross rod 31 rotates to a direction that the channel 311 is perpendicular to the tube 11, the through hole 321 is communicated with the tube 11, so that when a titration experiment is performed, standard liquid in the tube 11 is not easy to drip because the pressure in the tube 11 is too low.

As shown in fig. 3 and 4, a communication assembly for communicating the atmosphere is arranged between the plug 211 and the opening 21, the communication assembly comprises a groove 4 arranged on one side of the inner wall of the opening 21 close to the tube body 11, a communication hole 2111 is arranged in the plug 211, one end of the communication hole 2111 is arranged on one side of the plug 211 far from the tube body 11, and the other end is arranged on the side of the plug 211. The plug 211 is rotated to connect the communication hole 2111 with the groove 4, so that the interior of the liquid storage bottle 2 is communicated with the atmosphere, and the standard liquid in the liquid storage bottle 2 is not influenced by pressure when flowing into the tube body 11.

As shown in fig. 1 and 4, the diameter of the end of the opening 21 away from the tube 11 is larger than that of the end close to the tube 11, so that the contact area between the plug 211 and the opening 21 can be increased, and the sealing performance between the plug 211 and the opening 21 can be better. Moreover, the inner wall of the opening 21 and the side surface of the plug 211 are both frosted surfaces, so that the sealing performance between the plug 211 and the opening 21 can be improved.

The implementation principle of a burette of the embodiment of the application is as follows: when a titration experiment is carried out, the plug 211 is taken down, the cock 3 is opened, the standard liquid is added into the liquid storage bottle 2 through the opening 21, then the standard liquid flows into the pipe body 11, the cock 3 is stopped to be closed after the standard liquid in the pipe body 11 reaches the uppermost end of the scale mark, then the standard liquid is continuously added into the liquid storage bottle 2, and then the plug 211 is covered on the opening 21.

When the titration experiment is carried out, after the standard liquid in the tube body 11 is dripped, the plug 211 can be rotated to enable the communication hole 2111 to be communicated with the groove 4, then the cock 3 is opened, the standard liquid in the liquid storage bottle 2 is placed into the tube body 11, and then the titration is continued.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a buret, includes buret body (1), and buret body (1) includes body (11), its characterized in that: the liquid storage bottle (2) is fixedly connected to the upper end of the tube body (11), a cock (3) is arranged at one end, close to the liquid storage bottle (2), of the tube body (11), and a cavity (32) communicated with the atmosphere is formed in the cock (3).

2. A burette as claimed in claim 1, wherein: the faucet (3) comprises a cross column (31), a channel (311) is arranged on the cross column (31), the cavity (32) is arranged on the cross column (31), one end of the cavity (32) is communicated with the atmosphere on one side of the channel (311), a through hole (321) is formed in the other end of the cavity, and when the faucet (3) is closed, the through hole (321) is communicated with the pipe body (11).

3. A burette as claimed in claim 1, wherein: one end of the liquid storage bottle (2) far away from the tube body (11) is provided with an opening (21), and a plug (211) is inserted into the opening (21).

4. A burette as claimed in claim 3, wherein: and a communication component for communicating atmosphere is arranged between the plug (211) and the opening (21).

5. A burette as claimed in claim 4, wherein: the communicating component comprises a groove (4) which is arranged on the inner wall of the opening (21) and close to one side of the pipe body (11), a communicating hole (2111) is formed in the plug (211), one end of the communicating hole (2111) is arranged on the side, away from the pipe body (11), of the plug (211), the other end of the communicating hole is arranged on the side face of the plug (211), and the plug (211) rotates to enable the communicating hole (2111) to be communicated with the groove (4).

6. A burette as claimed in claim 3, wherein: the diameter of one end of the opening (21) far away from the pipe body (11) is larger than that of one end of the opening close to the pipe body (11).

7. A burette as claimed in claim 3, wherein: the inner wall of the opening (21) and the side surface of the plug (211) are frosted surfaces.

8. A burette as claimed in claim 1, wherein: the shape of the liquid storage bottle (2) is square, round or oval.