CN2788898Y

CN2788898Y - Non-capsule quantitative dropper

Info

Publication number: CN2788898Y
Application number: CN 200520083555
Authority: CN
Inventors: 王广增
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-27
Filing date: 2005-05-27
Publication date: 2006-06-21
Anticipated expiration: 2015-05-27

Abstract

The utility model provides an anticorrosive non-capsule quantitative dropper, which comprises a dropper body and a hollow glass plunger, wherein the hollow glass plunger is inserted in the dropper body from an upper opening of the dropper body and is connected with the dropper body oppositely rotarily; the outer grinding surface of the lower part of the hollow glass plunger tallies with the inner grinding surface of the upper part of the dropper body; the top end of a spherical cap of the hollow glass plunger and the lower part of the outer side of a cylindrical body are provided with a small hole; the lower part of the inner side of the upper part of the dropper body is provided with a groove. The utility model can prevent corrosion and can avoid resource waste and environmental pollution.

Description

The quantitative dropper of no capsule

Technical field

The utility model relates to chemical experimental instrument, relates in particular to a kind of dropper.

Background technology

Traditional dropper is formed by connecting by capsule and body, be used to draw the liquid that a few experiments is used, other toxic gas and oxygen in experimental liquid or its steam and the laboratory in operation or when storing, contact and make the capsule damage easily with capsule, consequently: change capsule experimental cost is increased; The steam polluting environment of scrap rubber capsule and liquid drug; Increase labourer's labour intensity, prolonged labourer's working time.

Summary of the invention

The utility model purpose provides a kind of corrosion-resistant does not have the quantitative dropper of capsule.

For achieving the above object, the technical solution adopted in the utility model is: the quantitative dropper of a kind of no capsule, comprising body, its characteristics are: also comprise the double glazing plunger, the double glazing plunger also becomes to be rotatably connected relatively with it from the insertion body suitable for reading of body, and the outside flour milling of double glazing plunger bottom and the inboard flour milling on body top match; The double glazing plunger is comprising spherical crown and cylinder, and the top of spherical crown has an aperture, and the lateral surface bottom of cylinder has an aperture; The bottom of body upper inner flour milling has a vertical groove; The aperture of cylinder lateral surface is corresponding with the groove of body upper inner flour milling.

Because dropper of the present utility model adopts can corrosion-resistant double glazing plunger, the problems such as the wasting of resources, environmental pollution, increase labor intensity and working time of having avoided traditional dropper to bring because capsule is corroded.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is the left view of double glazing plunger among Fig. 1.

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing.

The quantitative dropper of a kind of no capsule, as shown in Figure 1, comprising common body 2, empty glass plunger 5, double glazing plunger 5 also becomes to be rotatably connected relatively with it from the insertion body suitable for reading 2 of body 2, and the inboard flour milling on the outside flour milling of double glazing plunger 5 bottoms and body 2 tops matches; Double glazing plunger 5, as shown in Figure 2, comprising spherical crown 7 and cylinder 8, the top of spherical crown 7 has an aperture 6, and the lateral surface bottom of cylinder 8 has an aperture 4; The bottom of body 2 upper inner flour millings has a vertical groove 3; The aperture 4 of cylinder 8 lateral surfaces is corresponding with the groove 3 of body 2 upper inner flour millings; The bottom of body 2 indicates common scale 1.

In the present embodiment, by aperture 6, cylinder 8 lateral surfaces middle part aperture 4 on the lower side and the circulation of air of groove 3 maintenance dropper inside on the lower side, body 2 upper inner middle part on spherical crown 7 tops, the experimental liquid in the control body 2.When aperture 4 and groove 3 were corresponding, dropper is inner to keep circulation with outside air, with the absorption of the closed of finger control aperture 6 and then control body 2 interior experimental liquids or ooze; Rotation double glazing plunger 5, when aperture 4 misplaced with groove 3, inner with the extraneous air of dropper no longer circulated, and the experimental liquid in the dropper can keep the state before double glazing plunger 5 rotates.

Claims

1, the quantitative dropper of a kind of no capsule, comprising body (2), it is characterized in that: also comprise double glazing plunger (5), double glazing plunger (5) also becomes to be rotatably connected relatively with it from the insertion body suitable for reading (2) of body (2), and the inboard flour milling on the outside flour milling of double glazing plunger (5) bottom and body (2) top matches; Double glazing plunger (5) is comprising spherical crown (7) and cylinder (8), and the top of spherical crown (7) has an aperture (6), and the lateral surface bottom of cylinder (8) has an aperture (4); The bottom of body (2) upper inner flour milling has a vertical groove (3); The aperture (4) of cylinder (8) lateral surface is corresponding with the groove (3) of body (2) upper inner flour milling.

2, the quantitative dropper of no capsule according to claim 1, it is characterized in that: the bottom of described body (2) indicates scale (1).