CN218486002U

CN218486002U - Novel quantitative burette cover

Info

Publication number: CN218486002U
Application number: CN202221373970.2U
Authority: CN
Inventors: 吴文杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2023-02-17
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a novel quantitative burette lid, including the hood, reset spring, well circle, negative pressure bag and vacuum burette, well circle includes urceolus and inner tube, and the inner tube is located and is connected through annular backing plate between the middle part circumference inner wall of urceolus inboard and middle part circumference outer wall and urceolus, and the circumference wall of hood is located between urceolus and the inner tube, is connected through reset spring between bottom and the annular backing plate in the hood, and the inboard fixed negative pressure bag that is equipped with of inner tube, fixed connection between the bottom in negative pressure bag top and the hood, vacuum burette intercommunication set up the downside middle part at the negative pressure bag. Compared with the prior art, the method has the advantages that: the utility model has the advantages that after the head cap is pressed, the head cap automatically bounces under the action of the restoring deformation of the reset spring, so that one-time product suction can be completed, the suction volume in the vacuum dropper is very accurate, and the vacuum dropper can be used for products with higher consumption; the utility model is not easy to produce chemical reaction with the inhaled product.

Description

Novel quantitative burette cover

Technical Field

The utility model relates to a burette technical field specifically indicates a novel quantitative burette lid.

Background

Dropper is a dosing tool commonly used in the food, cosmetic and pharmaceutical industries. In the prior art, the existing dropper is generally in a structure that a negative pressure rubber head is arranged at the top of a tube body, the suction volume of the dropper each time is not accurate enough, and some products react with the rubber head, so that the rubber head dropper cannot be normally used.

Here, in order to solve the above problems, we propose a novel cap for a burette.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical difficulty, provide a suction volume at every turn more will be accurate, and the product of inhaling is difficult for producing a novel quantitative burette lid of chemical reaction with the burette.

In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides a novel quantitative burette lid, includes first cap, reset spring, well circle, negative pressure bag and vacuum burette, well circle includes urceolus and inner tube, the inner tube is located and is connected through annular backing plate between the middle part circumference inner wall of urceolus inboard and middle part circumference outer wall and urceolus, the circumference wall of first cap is located between urceolus and the inner tube, is connected through reset spring between bottom and the annular backing plate in the first cap, the inboard fixed negative pressure bag that is equipped with of inner tube, fixed connection between the bottom in negative pressure bag top and the first cap, the vacuum burette intercommunication sets up the downside middle part at the negative pressure bag.

As an improvement, a travel switch is arranged on the inner wall of the head cap. After the travel switch is turned on, the head cap can be pressed, and after the travel switch is turned off, the head cap can not be pressed any more.

As an improvement, the circumferential inner wall of the lower part of the outer barrel is provided with threads. The outer cylinder is sleeved on the outer wall of the bottle mouth of the bottle through threads at the bottom.

As an improvement, the head cap and the middle ring are respectively made of plastic materials.

Compared with the prior art, the utility model the advantage lie in: the utility model has the advantages that after the head cap is pressed, the head cap automatically bounces under the action of the restoring deformation of the reset spring, so that one-time product suction can be completed, the suction volume in the vacuum dropper is very accurate, and the vacuum dropper can be used for products with higher consumption; the utility model is not easy to produce chemical reaction with the inhaled product.

Drawings

Fig. 1 is a schematic structural view of the novel quantitative burette cover of the present invention.

As shown in the figure: 1. a head cap; 2. a return spring; 3. a middle ring; 4. a negative pressure bladder; 5. a vacuum dropper; 6. an outer cylinder; 7. an inner barrel; 8. an annular backing plate.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a novel quantitative burette lid, includes head cap 1, reset spring 2, well circle 3, negative pressure bag 4 and vacuum burette 5, well circle 3 includes urceolus 6 and inner tube 7, inner tube 7 is located and is connected through annular backing plate 8 between 6 inboard and middle part circumference outer wall of urceolus and the middle part circumference inner wall of urceolus 6, the circumference wall of head cap 1 is located between urceolus 6 and the inner tube 7, is connected through reset spring 2 between bottom and the annular backing plate 8 in the head cap 1, is provided with travel switch on the 1 inner wall of head cap, the inboard fixed negative pressure bag 4 that is equipped with of inner tube 7, fixed connection between the bottom in 4 tops of negative pressure bag and the head cap 1, vacuum burette 5 intercommunication sets up in the downside middle part of negative pressure bag 4, be provided with the screw thread on the circumference inner wall of the 6 lower parts of urceolus.

Wherein, the head cap 1 and the middle ring 3 are respectively made of plastic materials.

The utility model discloses when concrete implementation:

firstly, rotating a head cap 1 to open to form a switch, and then sleeving an outer cylinder 6 to a bottleneck through threads;

firstly, pressing a head cap 1 and then loosening (after pressing the head cap 1, both a return spring 2 and a negative pressure bag 4 are in compression deformation), the head cap 1 can be automatically jacked up through the recovery deformation action of the return spring 2, and the negative pressure bag 4 can be in recovery deformation, so that a quantitative product can be sucked into a vacuum dropper 5;

and thirdly, after the bottle is used, the novel bottle is screwed off from the bottle, and the bottle is opened and closed.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A novel quantitative burette cover is characterized in that: including head cap (1), reset spring (2), well circle (3), negative pressure bag (4) and vacuum burette (5), well circle (3) are including urceolus (6) and inner tube (7), inner tube (7) are located and are connected through annular backing plate (8) between the middle part circumference inner wall of urceolus (6) inboard and middle part circumference outer wall and urceolus (6), the circumference wall of head cap (1) is located between urceolus (6) and inner tube (7), is connected through reset spring (2) between head cap (1) bottom and annular backing plate (8), inner tube (7) inboard is fixed and is equipped with negative pressure bag (4), fixed connection between negative pressure bag (4) top and head cap (1) bottom, vacuum burette (5) intercommunication sets up the downside in negative pressure bag (4) middle part.

2. A novel metered dose burette cap as claimed in claim 1, wherein: the inner wall of the head cap (1) is provided with a travel switch.

3. A novel metered drop tube cap as claimed in claim 1, wherein: and the circumferential inner wall of the lower part of the outer barrel (6) is provided with threads.

4. A novel metered dose burette cap as claimed in claim 1, wherein: the head cap (1) and the middle ring (3) are made of plastic materials respectively.