CN214422241U

CN214422241U - Long-neck constant-pressure dropping funnel

Info

Publication number: CN214422241U
Application number: CN202120297929.0U
Authority: CN
Inventors: 孟海涛
Original assignee: Zibo Vocational Institute
Current assignee: Zibo Vocational Institute
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-19
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a long-neck constant-pressure dropping funnel, which comprises a barrel body and a dropping pipe arranged at the lower end of the barrel body, wherein a rotary piston used for controlling the dropping speed of the dropping pipe is arranged on the dropping pipe, a sleeve is also arranged at the lower outlet end of the dropping pipe, the lower end of the sleeve is provided with an opening, a long-neck dropper which runs through the sleeve is also arranged in the sleeve, the lower part of the long-neck dropper extends out of the lower outlet of the sleeve, the lower outlet of the dropping pipe is arranged in the long-neck dropper, and the lower outer side surface of the dropping pipe is in sealing connection with the upper inner side surface of the long-neck dropper; the barrel body is communicated with the sleeve through a communicating branch pipe. The utility model discloses a when the dropwise add pipe is inserting the liquid level, the visual control of dropwise add speed, because it is airtight dropwise add that long neck burette is, avoided causing any pollution to the liquid drop.

Description

Long-neck constant-pressure dropping funnel

Technical Field

The utility model belongs to the technical field of dropping funnel, more specifically say, the utility model relates to a long neck constant voltage dropping funnel.

Background

The dropping funnels in the current market are mainly divided into two types, one type is a common dropping funnel, and the other type is a constant-pressure dropping funnel. The common dropping funnel can control the dropping speed, and the dropping speed is visual and adjustable. The constant pressure dropping funnel has visual and adjustable dropping speed because the lower end is not inserted below the liquid level.

The above-mentioned conventional dropping funnel cannot insert the dropper below the liquid level, which is likely to cause environmental pollution to the dropping liquid, and the constant-pressure dropping funnel cannot observe the dropping speed of the liquid drop if inserted below the liquid level, which is not capable of controlling the dropping speed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses a realize the dropwise add pipe can realize the visual control to its dropwise add speed when inserting in the liquid level, the utility model provides a long neck constant voltage dropping funnel.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a long-neck constant-pressure dropping funnel comprises a barrel body and a dropping pipe arranged at the lower end of the barrel body, wherein a rotary piston used for controlling the dropping speed of the dropping pipe is arranged on the dropping pipe, a sleeve is further arranged at the lower outlet end of the dropping pipe, the lower end of the sleeve is open, a long-neck dropper penetrating through the sleeve is further arranged in the sleeve, the lower part of the long-neck dropper extends out of the lower outlet of the sleeve, the lower outlet of the dropping pipe is arranged in the long-neck dropper, and the outer side surface of the lower part of the dropping pipe is in sealing connection with the inner side surface of the upper part of the long-neck dropper; the barrel body is communicated with the sleeve through a communicating branch pipe.

One end of the communicating branch pipe is communicated with the upper part of the cylinder body, and the other end of the communicating branch pipe is communicated with the sleeve.

The lower part of the dropping pipe is in a conical contraction shape.

A chamber with the inner diameter larger than that of the rest positions is formed near the upper end of the long-neck dropper, and the lower end outlet of the dropping pipe is arranged in the chamber.

Preferably, the chamber is a spherical or cylindrical chamber.

The cylinder body, the dripping pipe, the long-neck dropper and the communicating branch pipe are made of transparent glass or plastic.

The utility model discloses technical scheme has following beneficial effect:

the utility model provides a constant voltage dropping funnel with long neck burette can insert the exit end of long neck burette below the liquid level completely, when opening rotary piston, the dropping speed of long neck burette can be observed through the dropping pipe export, relies on observing the dropping speed of dropping pipe, can be well the man-made control dropping speed through controlling rotary piston; simultaneously, because insert the lower extreme export of long-neck burette below the liquid level completely, prevent that the dropwise add process from volatilizing, guarantee the abundant contact of liquid, because airtight dropwise add, the utility model discloses avoided causing any pollution to the liquid drop. The utility model discloses a visual, controllable dropwise add speed, the control to the reaction has been guaranteed to the observation of being convenient for.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a long-neck constant-pressure dropping funnel provided by the present invention;

fig. 2 is a schematic view of the position relationship between the long-neck dropper and the dropping tube according to the present invention.

Description of reference numerals:

1-a cylinder body; 2-a dropping pipe; 3-a rotary piston; 4-a sleeve; 5-long neck dropper, 51-chamber; 6-connecting branch pipes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 system or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the utility model provides a long-neck constant-pressure dropping funnel, including barrel 1 and the dropping pipe 2 arranged at the lower end of barrel 1, the dropping pipe 2 is provided with a rotary piston 3 for controlling the dropping speed, a sleeve 4 is arranged at the lower outlet of the dropping pipe 2, the lower end of the sleeve 4 is open, a long-neck dropper 5 running through the sleeve 4 is arranged in the sleeve 4, the lower part of the long-neck dropper 5 extends out of the lower outlet of the sleeve 4, the lower part of the dropping pipe 2 is in a conical contraction shape, the lower outlet of the dropping pipe 2 is arranged in the long-neck dropper 5, the lower outer side surface of the dropping pipe 2 is in sealing connection with the upper inner side surface of the long-neck dropper 5; the cylinder body 1 is communicated with the sleeve 4 through a communicating branch pipe 6. When the automatic dripping device is used, the outlet end of the long-neck dropper 5 needs to be inserted below the liquid level, the rotary piston 3 is manually controlled to rotate, the rotary piston 3 is opened to enable liquid in the barrel 1 to enter the long-neck dropper 5 through the dripping pipe 2, the dripping speed of liquid drops can be observed through the outlet of the dripping pipe, and therefore the dripping speed can be well and manually controlled.

The utility model discloses a long neck burette to insert below the liquid level with its lower extreme export, prevent that the dropwise add process from volatilizing, guarantee the abundant contact of liquid, and through built-in dropwise add pipe, realize visual, controllable dropwise add speed, be convenient for observe, guarantee the control to the reaction.

The utility model discloses in order to avoid the influence to liquid dropwise add in the barrel 1, realize keeping liquid constant voltage dropwise add in the barrel 1 all the time, the preferred one end with UNICOM's branch pipe 6 is linked together with the upper portion of barrel 1, and its other end is linked together with sleeve pipe 4, keeps inside and outside pressure unanimous.

As shown in FIG. 2, a chamber 51 having an inner diameter larger than that of the other positions may be provided near the upper end of the long neck dropper 5, for example, a spherical chamber may be used in FIG. 2, but a cylindrical chamber or other chambers may be used, and the lower end outlet of the dropping pipe 2 may be provided in the chamber 51. The larger chamber may further facilitate the dripping of droplets from the drip tube and may facilitate the viewing of droplets dripping from the drip tube.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The utility model provides a long neck constant voltage dropping funnel, includes barrel (1) and set up in drip tube (2) of barrel (1) lower extreme, be equipped with rotary piston (3) that are used for controlling its dropping speed on drip tube (2), its characterized in that, the lower part exit end department of drip tube (2) still is equipped with a sleeve pipe (4), the lower extreme opening of sleeve pipe (4), still be equipped with in sleeve pipe (4) and run through long neck burette (5) of sleeve pipe (4), the lower part of long neck burette (5) stretches out the lower extreme export of sleeve pipe (4), the lower extreme export of drip tube (2) sets up in long neck burette (5), the lower part lateral surface of drip tube (2) with the upper portion medial surface of long neck burette (5) forms sealing connection; the barrel body (1) is communicated with the sleeve (4) through a communicating branch pipe (6).

2. The long-neck constant pressure dropping funnel according to claim 1, characterized in that the communication branch (6) communicates at one end with the upper portion of the cylinder (1) and at the other end with the sleeve (4).

3. The long-neck constant-pressure dropping funnel according to claim 1, wherein the lower portion of the dropping tube (2) is conically constricted.

4. The long neck constant pressure dropping funnel according to claim 1, wherein a chamber (51) having an inner diameter larger than that of the remaining position is formed near the upper end of the long neck dropper (5), and the lower end outlet of the dropping tube (2) is provided in the chamber (51).

5. A long-neck constant pressure dropping funnel according to claim 4, characterized in that the chamber (51) is a spherical or cylindrical chamber.

6. The long-neck constant-pressure dropping funnel according to any one of claims 1 to 5, wherein the cylinder, the dropping tube, the long-neck dropper and the communicating branch tube are made of transparent glass or plastic.