CN217212491U

CN217212491U - Bidirectional piston for acid burette

Info

Publication number: CN217212491U
Application number: CN202220927149.4U
Authority: CN
Inventors: 赵昆; 李莹; 谭亚军; 赵甲慧; 王锦辉
Original assignee: Tianjin Food Safety Testing Technology Research Institute
Current assignee: Tianjin Food Safety Testing Technology Research Institute
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-16
Anticipated expiration: 2032-04-21

Abstract

The utility model provides a two-way piston for acid buret, belongs to the piston field, and T type mounting is fixed respectively to the top and the bottom of its toper cock body, the handle in area T type groove clamps on T type mounting, the lower extreme of toper cock body is equipped with the external screw thread, and fixation nut installs between toper cock body and T type mounting, with the external screw thread connection of toper cock body lower extreme. The utility model has the advantages that: compare in traditional piston, the utility model discloses can two-way installation operating handle, when keeping former piston function, make things convenient for below operation and different custom laboratory men's operation convenience.

Description

Bidirectional piston for acid burette

Technical Field

The utility model belongs to a piston, in particular to a bidirectional piston for an acid burette.

Background

The existing acid burette is divided into a straight pipe and an elbow pipe, wherein a piston for controlling the flow rate in the elbow pipe acid burette is arranged on a handle, and the flow rate is controlled by operating from the upper part. In the experiment that needs to titrate boiling solution, horizontal return bend buret is easier to operate, but for the colour change of conveniently observing titration solution, often need the inspector to sit the position and use the buret, and the handle is at the piston of top to sitting the position operation inconvenient, because current piston all is narrow structure under the width, the direction of pure accent piston becomes under the narrow width structure, can make the piston slide down, produces the displacement, appears the risk of weeping.

Disclosure of Invention

An object of the utility model is to overcome foretell defect, provide a bidirectional piston for acid buret, this buret is all mountable the piston from top to bottom, can satisfy different position titration test requirements, makes the damage more convenient.

The utility model aims at realizing through the following technical scheme: the utility model provides a two-way piston for acid burette, includes the toper stopcock that link up from top to bottom and the toper cock body that inserts in the toper stopcock, its characterized in that: the handle with the T-shaped groove is clamped on the T-shaped fixing piece, the outer thread is arranged at the lower end of the conical plug body, and the fixing nut is installed between the conical plug body and the T-shaped fixing piece and connected with the outer thread at the lower end of the conical plug body.

And a fixed washer is arranged between the fixed nut and the conical plug body.

The beneficial effects of the utility model are that:

compare in traditional buret piston, the utility model discloses can two-way installation operating handle, when keeping former piston function, make things convenient for below operation and different custom experimenters' operation convenience.

Drawings

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

Wherein:

the plug comprises a plug tube 1, a plug body 2, a T-shaped fixing piece 3, a handle with a T-shaped groove 4, a thread 5, a fixing nut 6 and a fixing washer 7.

Detailed Description

Example (b): as shown in FIG. 1, the embodiment takes a sitting position operation as an example, the bi-directional piston for the acid burette is provided, the diameter of an upper ring of the piston is 1.4cm, the diameter of a lower ring of the piston is 0.5cm, the height of a cone is 2.5cm, the piston comprises a conical plug tube 1 which is communicated up and down, a conical plug body 2 which is inserted into the conical plug tube 1, and a handle 4 with a T-shaped groove, the top and the bottom of the conical plug body 2 are respectively fixed with a T-shaped fixing piece 3, according to the experimental requirement, the handle 4 with the T-shaped groove is clamped on the T-shaped fixing piece 3 at the bottom of the conical plug body 2, the conical plug body 2, the T-shaped fixing piece 3 and the handle 4 with the T-shaped groove are all made of polytetrafluoroethylene materials, the lower end of the conical plug body 2 is provided with an external thread 5 with the height of 1.3cm, a fixing nut 6 is arranged between the conical plug body 2 and the T-shaped fixing piece 3, and the fixing nut 6 is connected with the external thread 6 at the lower end of the conical plug body 2, and a fixing washer 7 is arranged between the fixing nut 6 and the conical plug body 2. .

Claims

1. The utility model provides a two-way piston for acid burette, includes the toper stopcock that link up from top to bottom and the toper cock body that inserts in the toper stopcock, its characterized in that: the handle with the T-shaped groove is clamped on the T-shaped fixing piece, the outer thread is arranged at the lower end of the conical plug body, and the fixing nut is installed between the conical plug body and the T-shaped fixing piece and connected with the outer thread at the lower end of the conical plug body.

2. The bi-directional piston for an acid burette of claim 1, wherein: and a fixed washer is arranged between the fixed nut and the conical plug body.