CN215756408U

CN215756408U - Constant pressure dropping funnel convenient to control dropping volume

Info

Publication number: CN215756408U
Application number: CN202121791040.4U
Authority: CN
Inventors: 张奇; 张富浩; 张绘新; 郭靖靖
Original assignee: Qingdao Haiyida New Material Technology Co ltd
Current assignee: Qingdao Haiyida New Material Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-08
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a constant-pressure dropping funnel convenient for controlling dropping amount, which relates to the technical field of chemical experimental instruments and comprises a tank body, wherein the surface of the tank body is provided with a first through hole which is used for a rotating cock to penetrate through and is in rotating connection with a fixed shaft of the rotating cock, the surface of the rotating cock is provided with a plurality of liquid storage grooves, the constant-pressure dropping funnel further comprises a rotating part used for carrying out stepless speed regulation on the rotation of the rotating cock and a balance part used for keeping constant the pressure in the tank body, the rotating part comprises a rotating speed controller fixedly connected to the surface of the tank body, the end part of the rotating cock is fixedly connected with a gear, and the gear is meshed with a driving part of the rotating speed controller. And the problem of not being able to accurately control the amount of dropping.

Description

Constant pressure dropping funnel convenient to control dropping volume

Technical Field

The utility model relates to the technical field of chemical experimental instruments, in particular to a constant-pressure dropping funnel convenient for controlling dropping amount.

Background

The constant pressure dropping funnel is one of dropping funnels, and can perform dropping, extraction and other operations as other dropping funnels.

However, the conventional dropping funnel has a problem that the internal pressure is not constant, a suck-back phenomenon is likely to occur, and the dropping amount cannot be accurately controlled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a constant-pressure dropping funnel convenient for controlling the dropping amount, which has the effects of accurately controlling the dropping amount of liquid, preventing suck-back and enabling the liquid to flow down uniformly, and solves the problems that the internal pressure of the traditional dropping funnel cannot be constant, suck-back is easy to occur, and the dropping amount cannot be accurately controlled.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a constant voltage dropping funnel convenient to control volume of dripping, includes a jar body, the surface of jar body is offered and is used for rotating the cock and passes and the dead axle rotation through-hole one of being connected with it, a plurality of stock solution recess has been seted up on the surface of rotation cock, and still including being used for right the rotation part that stepless speed regulation was carried out in the rotation of rotation cock, and be used for invariable the balance part of internal pressure of jar.

Optionally, the rotating part comprises a rotation speed controller fixedly connected to the surface of the tank body, and a gear is fixedly connected to an end of the rotating cock, and the gear is engaged with a driving part of the rotation speed controller.

Optionally, the balancing part comprises a constant-pressure pipe, and two ends of the constant-pressure pipe are respectively fixedly communicated with the upper end and the lower end of the tank body.

Optionally, a surface of the rotation speed controller is fixedly connected with a rotation speed display.

Optionally, the tank body is made of glass, and the rotary cock is made of polytetrafluoroethylene.

Optionally, the sizes of the liquid storage grooves are all the same.

Compared with the prior art, the utility model has the following beneficial effects:

firstly, liquid to be dripped is added into a tank body, the liquid outlet amount of the tank body is controlled by a rotating speed controller, the dripping speed and the dripping amount can be accurately controlled by the rotating speed controller, different dripping processes are adapted, the dripping speed and the dripping amount are kept constant, the dripping accuracy is improved, the dripping speed is easy to be too high or too low and the dripping amount is too much or too little in the using process, and further, the experiment result is greatly influenced

The utility model can ensure the internal pressure to be unchanged through the constant pressure pipe, can prevent suck-back, can ensure that liquid in the funnel flows down smoothly, and reduces the influence of the increased liquid on the gas pressure, thereby being more accurate in measuring the gas volume.

Drawings

FIG. 1 is an isometric view of a structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a side cross-sectional view of the rotary faucet, gear and reservoir bowl configuration of the present invention.

In the figure: 1. a tank body; 2. rotating the cock; 3. a gear; 4. a rotational speed controller; 5. a constant pressure tube; 6. A liquid storage groove; 41. and a rotating speed display.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a constant voltage dropping funnel convenient to control dropwise add volume, which comprises a tank body 1, the through-hole that is used for rotating cock 2 and passes and the dead axle rotation is connected with it is seted up to the surface of jar body 1, a plurality of stock solution recess 6 has been seted up on the surface of rotating cock 2, still including being used for carrying out stepless speed regulation's rotatable parts to the rotation of rotating cock 2, and be used for invariable jar internal pressure's balanced part, add to jar body 1 through the liquid that will need the dropwise add, effect through the rotatable parts, make the liquid in the jar body 1 can be because during gravity gets into first stock solution recess 6, and rotate the below to jar body 1 with the liquid in the first stock solution recess 6, thereby outflow jar body 1, and second stock solution recess 6 holds liquid after that, so reciprocal, can accomplish the effect of play liquid.

In order to control the liquid outlet amount and the liquid outlet speed, further, the rotating part comprises a rotating speed controller 4 fixedly connected to the surface of the tank body 1, the end part of the rotating cock 2 is fixedly connected with a gear 3, the gear 3 is meshed with a driving part of the rotating speed controller 4, the gear 3 is controlled to rotate by the rotating speed controller 4, so that the rotating cock 2 is driven to rotate, the liquid in the first liquid storage groove 6 is rotated to the lower part of the tank body 1, so that the liquid flows out of the tank body 1, the second liquid storage groove 6 is used for containing the liquid, the liquid outlet amount of the tank body 1 can be controlled by the rotating speed controller 4 in a reciprocating way, the dropping speed and the dropping amount can be accurately controlled by the rotating speed controller 4, different dropping processes are adapted, the dropping speed and the dropping amount are kept constant, the dropping accuracy is improved, and the dropping speed is easy to be over-fast or over-slow in the using process, the dripping amount is too much or too little, and further great influence is generated on the experimental result.

In order to balance the pressure in the tank body 1, further, the balance part comprises a constant-pressure pipe 5, the two ends of the constant-pressure pipe 5 are fixedly communicated with the upper end and the lower end of the tank body 1 respectively, the constant-pressure pipe 5 can ensure that the internal pressure is unchanged, suck-back can be prevented, liquid in the funnel can smoothly flow down, and the influence of the increased liquid on the gas pressure is reduced, so that the gas volume is measured more accurately.

In order to facilitate the liquid outlet rate observed by a user, further, a rotating speed display 41 is fixedly connected to the surface of the rotating speed controller 4, and the liquid outlet amount can be calculated through the rotating speed displayed by the rotating speed display 41.

In order to prevent the liquid in the tank body 1 from being filled with the liquid which corrodes plastics, furthermore, the tank body 1 is made of glass, the rotary cock 2 is made of polytetrafluoroethylene, and the tank body 1 is made of glass, so that the liquid can be prevented from damaging a container.

In order to make the liquid output quantity uniform, furthermore, the sizes of the liquid storage grooves 6 are all the same.

The working principle is as follows: when the constant-pressure dropping funnel convenient for controlling the dropping amount is used, liquid to be dropped is added into the tank body 1, the liquid storage groove 6 is formed in the surface of the rotating cock 2, the liquid in the tank body 1 can enter the first liquid storage groove 6 due to gravity, the gear 3 is controlled to rotate through the rotating speed controller 4, the rotating cock 2 is driven to rotate, the liquid in the first liquid storage groove 6 is rotated to the lower part of the tank body 1, the liquid flows out of the tank body 1, the second liquid storage groove 6 then contains the liquid, the liquid outlet amount of the tank body 1 can be controlled through the rotating speed controller 4 in a reciprocating mode, the dropping speed and the dropping amount can be accurately controlled through the rotating speed controller 4, the constant dropping speed and the dropping amount are adapted to different dropping processes, the dropping speed and the dropping amount are kept constant, the dropping accuracy is improved, the dropping speed is easy to be too fast or too slow in the using process, the dripping amount is too much or too little, so that the experimental result is greatly influenced;

the constant pressure pipe 5 can ensure that the internal pressure is unchanged, firstly, suck-back can be prevented, secondly, liquid in the funnel can smoothly flow down, and thirdly, the influence of the increased liquid on the gas pressure is reduced, so that the gas volume is measured more accurately.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a constant voltage dropping funnel convenient to control dropping volume, includes a jar body (1), its characterized in that: the pressure-adjustable tank is characterized in that a first through hole is formed in the surface of the tank body (1) and used for allowing the rotary cock (2) to penetrate through and be rotationally connected with a fixed shaft of the rotary cock, a plurality of liquid storage grooves (6) are formed in the surface of the rotary cock (2), the pressure-adjustable tank further comprises a rotating part and a balancing part, the rotating part is used for carrying out stepless speed regulation on rotation of the rotary cock (2), and the balancing part is used for keeping pressure in the tank body (1) constant.

2. The constant pressure dropping funnel facilitating the control of the amount of the dropped liquid as set forth in claim 1, wherein: the rotating part comprises a rotating speed controller (4) fixedly connected to the surface of the tank body (1), a gear (3) is fixedly connected to the end part of the rotating cock (2), and the gear (3) is meshed with a driving part of the rotating speed controller (4).

3. The constant pressure dropping funnel facilitating the control of the amount of dropping as set forth in claim 2, wherein: the balance part comprises a constant-pressure pipe (5), and two ends of the constant-pressure pipe (5) are fixedly communicated with the upper end and the lower end of the tank body (1) respectively.

4. The constant pressure dropping funnel facilitating the control of the amount of dropping as set forth in claim 3, wherein: and the surface of the rotating speed controller (4) is fixedly connected with a rotating speed display (41).

5. The constant pressure dropping funnel facilitating the control of the dropping amount according to any one of claims 1, 2 or 3, wherein: the tank body (1) is made of glass, and the rotary cock (2) is made of polytetrafluoroethylene.

6. The constant pressure dropping funnel facilitating the control of the dropping amount as set forth in any one of claims 2, 3 or 4, wherein: the sizes of the liquid storage grooves (6) are all the same.