CN218067801U

CN218067801U - Acid burette of anti-overflow liquid

Info

Publication number: CN218067801U
Application number: CN202221736562.9U
Authority: CN
Inventors: 吉冰璇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-12-16
Anticipated expiration: 2032-07-05

Abstract

The utility model discloses an acid buret of anti-overflow liquid belongs to acid buret technical field, wherein, including buret and protective sheath, the one end an organic whole of buret is connected with the connecting pipe, an organic whole is connected with the titration head on the connecting pipe, an organic whole is connected with a piston section of thick bamboo on the connecting pipe, a piston section of thick bamboo's inner wall fixedly connected with baffle, sliding connection has a movable cylinder in the piston section of thick bamboo, one side fixedly connected with screw thread section of thick bamboo of a movable cylinder. Through the combined action of piston cylinder, a movable cylinder, a screw thread section of thick bamboo, a bearing, pivot and threaded rod etc, just can adjust the velocity of flow of buret through rotating the pivot, and the both ends of piston cylinder are all sealed, can guarantee that liquid can not spill over from the junction of piston cylinder and connecting pipe, through the setting of snap ring and protective sheath, can make protective sheath and snap ring fix, can make the protective sheath protect titrating the head, and simultaneously, also can avoid liquid to spill over dirty desktop from titrating the head.

Description

Acid burette of anti-overflow liquid

Technical Field

The utility model relates to an acid buret technical field, more specifically say, it relates to an acid buret of anti-overflow liquid.

Background

The burette is an instrument frequently used in middle school chemistry experiments, is mainly used for titration operation, and is mainly divided into a basic burette and an acid burette, wherein the lower end of the acid burette is provided with a glass piston and can be filled with acidic or oxidative titration liquid, but not alkaline titration liquid.

For example, the acid burette for preventing liquid leakage disclosed in the Chinese patent document has the following publication number: CN207557189U, published: 2018.06.29, although solving the problems of easy leakage and difficult reading at the joint of the titration cock and the plug sleeve, the liquid can be exposed from the head of the burette, so the acid burette for preventing the liquid overflow is specially provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the deficiency of the prior art, the utility model aims to provide an acid buret of anti-overflow liquid, it has the characteristics of preventing liquid from piston department overflow and from buret head department overflow.

(II) technical scheme

In order to achieve the purpose, the utility model provides an acid buret of anti-overflow liquid, including buret and protective sheath, the one end an organic whole of buret is connected with the connecting pipe, an organic whole is connected with the titration head on the connecting pipe, an organic whole is connected with the piston barrel on the connecting pipe, the inner wall fixedly connected with baffle of piston barrel, sliding connection has a movable cylinder in the piston barrel, one side fixedly connected with screw thread section of thick bamboo of movable cylinder, the inner wall threaded connection of screw thread section of thick bamboo has the threaded rod, the one end fixedly connected with pivot of threaded rod, fixedly connected with bearing on the piston barrel, the pivot activity is worn to establish in the bearing, first round hole has been seted up on the movable cylinder, connecting pipe fixedly connected with snap ring, fixedly connected with annular plate on the protective sheath, the spout has been seted up on the piston barrel, the surface fixedly connected with spacing of movable cylinder, spacing and spout sliding connection.

When the anti-overflow acid buret of this technical scheme is used, through the combined action of piston cylinder, movable cylinder, screw thread section of thick bamboo, bearing, pivot and threaded rod etc. just can adjust the velocity of flow of buret through rotating the pivot, and the both ends of piston cylinder are all sealed, can guarantee that liquid can not spill over from the junction of piston cylinder and connecting pipe.

Furthermore, a second round hole is formed in the piston cylinder, the number of the second round holes is two, the two second round holes are connected with a connecting pipe, and the connecting pipe and the piston cylinder are integrally connected and are mutually communicated.

Furthermore, one end of the rotating shaft is fixedly connected with a handle, and the protective sleeve is fixedly connected with a circular ring.

Further, the snap ring is matched with the annular plate, and the protective sleeve is a foldable protective sleeve.

Furthermore, the burette is provided with scale marks, and the upper end of the burette is a horn mouth.

(III) advantageous effects

To sum up, the utility model discloses following beneficial effect has:

1. the clamping ring and the protective sleeve are arranged, so that the protective sleeve and the clamping ring can be fixed, the protective sleeve can protect the titration head, and meanwhile, liquid can be prevented from overflowing from the titration head to pollute a desktop;

2. the protective sleeve can be conveniently taken down under the action of the circular ring, and the foldable protective sleeve can be folded, so that the use is more convenient;

3. through the combined action of piston cylinder, a movable cylinder, a threaded cylinder, a bearing, pivot and threaded rod etc., buret and connecting pipe integrated into one piece set up, and the leakproofness of whole buret has been guaranteed in connecting pipe and the setting of piston cylinder integrated into one piece, just can adjust the velocity of flow of buret through rotating the pivot, and the both ends of piston cylinder are all sealed, can guarantee that liquid can not spill over from the junction of piston cylinder and connecting pipe.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the snap ring structure of the present invention;

fig. 3 is a schematic diagram of the cross section of the piston cylinder of the present invention.

The labels in the figures are:

1. a burette; 2. scale lines; 3. a connecting pipe; 4. a piston cylinder; 5. a snap ring; 6. a titration head; 7. an annular plate; 8. a circular ring; 9. a protective sleeve; 10. a bearing; 11. a handle; 12. a partition plate; 13. a second circular hole; 14. a first circular hole; 15. a movable barrel; 16. a limiting strip; 17. a chute; 18. a threaded barrel; 19. a threaded rod; 20. a rotating shaft.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following description is made for the technical solution of the present invention in the embodiments to explain the present invention clearly and completely, obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments.

Example (b):

the present invention will be described in further detail with reference to the accompanying fig. 1-3.

Referring to fig. 1-3, the present invention provides a technical solution: an acid burette for preventing liquid overflow comprises a burette 1 and a protective sleeve 9, wherein a scale mark 2 is arranged on the burette 1, the upper end of the burette 1 is a horn mouth, one end of the burette 1 is integrally connected with a connecting pipe 3, a titration head 6 is integrally connected with the connecting pipe 3, a piston cylinder 4 is integrally connected with the connecting pipe 3, a partition plate 12 is fixedly connected with the inner wall of the piston cylinder 4, a movable cylinder 15 is connected in the piston cylinder 4 in a sliding manner, a threaded cylinder 18 is fixedly connected with one side of the movable cylinder 15, a threaded rod 19 is connected with the inner wall of the threaded cylinder 18, a rotating shaft 20 is fixedly connected with one end of the threaded rod 19, a handle 11 is fixedly connected with one end of the rotating shaft 20, a bearing 10 is fixedly connected with the piston cylinder 4, the rotating shaft 20 is movably arranged in the bearing 10, a sliding groove 17 is formed in the piston cylinder 4, a limit strip 16 is fixedly connected with the outer surface of the movable cylinder 15, the limit strip 16 is connected with the sliding groove 17 in a sliding manner, the piston cylinder 4, the movable cylinder 15, the threaded cylinder 18, the bearing 10, the rotating shaft 20 and the threaded rod 19 and the like jointly act, the burette 1 and the connecting pipe 3 and the connecting pipe 4 integrally, so that the connecting pipe can regulate the flow rate of the piston cylinder 4 and the piston cylinder 4 can be sealed and the connecting pipe 4, and the connecting pipe can be prevented from the piston 1 and the piston 4 from overflowing;

the first round hole 14 is formed in the movable cylinder 15, the second round holes 13 are formed in the piston cylinder 4, the number of the second round holes 13 is two, the two second round holes 13 are connected with the connecting pipe 3, the connecting pipe 3 and the piston cylinder 4 are integrally connected and are mutually communicated, the connecting pipe 3 is fixedly connected with the clamping ring 5, the clamping ring 5 is provided with a groove on the annular plate, the position of the groove and the annular plate 7 can be clamped, the annular plate 7 is fixedly connected with the protective sleeve 9, the annular plate 7 and the clamping ring 5 can be fixed through the arrangement of the clamping ring 5 and the annular plate 7, the protective sleeve 9 can protect the titration head 6, meanwhile, liquid can be prevented from overflowing from the titration head 6 to pollute a tabletop, the clamping ring 5 is matched with the annular plate 7, the protective sleeve 9 is foldable, the foldable protective sleeve 9 can be folded, the use is more convenient, the circular ring 8 is fixedly connected onto the protective sleeve 9, and under the action of the circular ring 8, the protective sleeve 9 can be conveniently taken down

The utility model discloses a theory of operation does: student or experimenter are when using, separate snap ring 5 and annular plate 7 to folding protective sheath 9 takes off it, when the velocity of flow of needs regulation liquid, through rotating handle 11, make pivot 20 take the screw thread to rotate, spacing 16 slides in spout 17 simultaneously, make a screw thread section of thick bamboo 18 translation on threaded rod 19, thereby can change the position of a movable section of thick bamboo 15, when first round hole 14 and second round hole 13 coincide gradually, can adjust the velocity of flow of liquid.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an acid buret of anti-overflow liquid, includes buret (1) and protective sheath (9), its characterized in that: the utility model discloses a buret, including buret (1), connecting pipe (3), last a body coupling of connecting pipe (3) has titration head (6), a body coupling has piston barrel (4) on connecting pipe (3), the inner wall fixedly connected with baffle (12) of piston barrel (4), sliding connection has movable section of thick bamboo (15) in piston barrel (4), one side fixedly connected with screw barrel (18) of movable section of thick bamboo (15), the inner wall threaded connection of screw barrel (18) has threaded rod (19), the one end fixedly connected with pivot (20) of threaded rod (19), fixedly connected with bearing (10) are gone up in piston barrel (4), pivot (20) activity is worn to establish in bearing (10), first round hole (14) have been seted up on movable section of thick bamboo (15), connecting pipe (3) fixedly connected with snap ring (5), fixedly connected with board (7) on protective sheath (9), spout (17) have been seted up on piston barrel (4), the outer fixed surface of movable section of thick bamboo (15) is connected with spacing (16), spacing (16) and spout (17) sliding connection.

2. An anti-spill acid burette as claimed in claim 1, wherein: the piston cylinder (4) is provided with two second round holes (13), the number of the second round holes (13) is two, the two second round holes (13) are connected with the connecting pipe (3), and the connecting pipe (3) and the piston cylinder (4) are integrally connected and are mutually communicated.

3. An anti-spill acid burette as claimed in claim 1, wherein: one end fixedly connected with handle (11) of pivot (20), fixedly connected with ring (8) on protective sheath (9).

4. An anti-spill acid burette as claimed in claim 1, wherein: snap ring (5) and annular plate (7) phase-match, just protective sheath (9) are collapsible protective sheath (9).

5. An anti-spill acid burette as claimed in claim 1, wherein: the burette (1) is provided with scale marks (2), and the upper end of the burette (1) is a horn mouth.