CN217487920U

CN217487920U - Special test tube brush convenient to change brush head for experiment

Info

Publication number: CN217487920U
Application number: CN202122395177.4U
Authority: CN
Inventors: 陆海楠; 徐佳成; 杨洁
Original assignee: Shanghai Academy of Environmental Sciences
Current assignee: Shanghai Academy of Environmental Sciences
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-09-27
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a special test-tube brush of experiment convenient to change brush head, including brush hair skeleton and extension bar, brush hair skeleton bottom joint has the brush head, two sets of brush hairs of brush hair skeleton surface fixed connection, brush hair skeleton top fixedly connected with external screw thread head, brush hair skeleton top is provided with the rubber head, rubber headtotail is provided with the recess, recess and brush hair skeleton top and external screw thread head looks adaptation, extension bar bottom set up threaded hole, the brush head passes through the plug and inserts in the draw-in groove of brush hair skeleton bottom fixed connection's dop, realizes the installation of brush head, makes things convenient for the installation and the dismantlement of the brush head of different models, and brush hair skeleton bottom sets up the brush head of spongy substance for brush hair skeleton can not the direct contact test tube bottom, and then can not bruise or bump garrulous test tube bottom. If abluent test tube is comparatively long and thin, is difficult to wash the bottom, can install extension bar to the test tube brush to in the cleanness to the test tube bottom.

Description

Special test tube brush convenient to change brush head for experiment

Technical Field

The utility model relates to a chemistry household utensils cleaning means technical field specifically is a special test-tube brush of experiment convenient to change brush head.

Background

A test tube brush, also called a twisted wire brush, is one of the common chemical utensil cleaning tools in laboratories. The specific surface area analyzer is an analyzer used in the field of mapping science and technology, and is used for analyzing the specific surface area of a powdery material. The measurement of the specific surface area of the porous object has very important significance in scientific research and industrial production, so that the porous object has wide application. The special sample tube used by the specific surface area analyzer is slender in shape and the top end of the sample tube is spherical, and a test tube brush is needed after the sample tube is used.

The existing test tube brush used in a laboratory is mainly formed by taking an iron wire or a steel wire as a framework and carrying a plurality of thin brush wires which are arranged in order and extend outwards, and can effectively clean the interior of a cylindrical test tube commonly used for experiments. The ends of the iron wires or the steel wires on the test tube brush are generally positioned at the top of the test tube brush, so that the ends of the iron wires or the steel wires at the top of the test tube brush are easy to damage or crash the bottom of the test tube when the test tube is cleaned. Meanwhile, the length of the test tube brush is fixed with the size of the brush head, so that the test tube brush is difficult to clean a plurality of slender glass test tubes, and the bottom of the test tube brush cannot be cleaned completely. Therefore, there is a need for a tube brush that can be lengthened without damaging or breaking the bottom of the tube, and can save resources.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special test-tube brush of experiment convenient to change brush head to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a special test-tube brush of experiment convenient to change brush head, includes brush hair skeleton and extension bar, brush hair skeleton bottom joint has the brush head, two sets of brush hairs of brush hair skeleton surface fixedly connected with, brush hair skeleton top fixedly connected with external screw thread head, brush hair skeleton top is provided with the rubber head, rubber headtotail is provided with the recess, recess and brush hair skeleton top and external screw thread head looks adaptation, the screw hole has been seted up to the extension bar bottom, extension bar top fixedly connected with handle.

As a further aspect of the present invention: the novel toothbrush is characterized in that the bottom end of the bristle framework is fixedly connected with a clamping head, a clamping groove is formed in the clamping head, a plug is fixedly connected in the toothbrush head and matched with the clamping groove, and triangular grooves matched with the plug are symmetrically formed in the inner end of the inner wall of the clamping groove.

As a further aspect of the present invention: the top of the rubber head is fixedly connected with a first hanging ring, and the top of the handle is fixedly connected with a second hanging ring.

As a further aspect of the present invention: and anti-slip patterns are arranged on the outer walls of the rubber head and the handle.

As a further aspect of the present invention: the bristles are uniformly distributed on the bristle framework in a radial shape.

As the utility model discloses further scheme again: the brush head is made of sponge.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a during the brush head passes through the draw-in groove of plug insertion brush hair skeleton bottom fixed connection's dop, realize the installation of brush head, make things convenient for the installation and the dismantlement of the brush head of different models, brush hair skeleton bottom sets up the brush head of spongy substance for brush hair skeleton can not the direct contact test tube bottom, and then can not bruise or bump garrulous test tube bottom. If abluent test tube is comparatively long and thin, is difficult to wash the bottom, can install extension bar to the test tube brush to in the cleanness to the test tube bottom.

Drawings

Fig. 1 is a schematic structural view of an experiment-dedicated test tube brush convenient for replacing a brush head.

Fig. 2 is a partial schematic view of an experimental special test tube brush convenient for replacing a brush head.

FIG. 3 is a partial sectional view of the joint of the bristle skeleton and the extension bar in the test tube brush special for the experiment and convenient for replacing the brush head.

Fig. 4 is a schematic structural diagram of a sample tube with a specific surface area, which is suitable for an experiment special test tube brush with a brush head convenient to replace.

In the figure: brush head 1, plug 2, dop 3, brush hair 4, brush hair skeleton 5, external screw thread head 6, rubber head 7, recess 8, first rings 9, extension bar 10, handle 11, second rings 12, screw hole 13, draw-in groove 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Please refer to fig. 1 ~ 4, in the embodiment of the utility model, a special test tube brush of experiment convenient to change brush head, including brush hair skeleton 5 and

extension bar

10, 5 bottom joints of brush hair skeleton have brush head 1, 5 outer fixed surface of brush hair skeleton is connected with two sets of brush hair 4, 5 top fixedly connected with external screw thread head 6 of brush hair skeleton, 5 tops of brush hair skeleton are provided with rubber head 7, 7 bottoms of rubber head are provided with recess 8, recess 8 and 5 tops of brush hair skeleton and 6 looks adaptations of external screw thread head, 10 bottoms of extension bar set up threaded

hole

13, 10 top fixedly connected with handles 11 of extension bar, threaded hole 13 of

extension bar

10 and 6 threaded connection of external screw thread head at 5 tops of brush hair skeleton, the length of extension brush hair skeleton 5, be favorable to the washing to the experiment test tube of not unidimensional.

The bottom end of the bristle framework 5 is fixedly connected with a clamping head 3, the clamping head 3 is provided with a clamping groove 14, a plug 2 is fixedly connected in the brush head 1, the plug 2 is matched with the clamping groove 14, the inner end of the inner wall of the clamping groove 14 is symmetrically provided with a triangular groove matched with the plug 2, the plug 2 is arranged in the clamping groove 14 of the clamping head 3, and the brush head 1 is convenient to install and disassemble.

The top of the rubber head 7 is fixedly connected with a first hanging ring 9, and the top of the handle 11 is fixedly connected with a second hanging ring 12.

The outer walls of the rubber head 7 and the handle 11 are provided with anti-skid patterns.

The bristles 4 are uniformly distributed on the bristle skeleton 5 in a radial shape.

The brush head 1 is made of sponge, and the brush head 1 comprises various types, so that the test tubes with different sizes can be cleaned.

The utility model discloses a theory of operation is:

during the use, brush head 1 inserts in the draw-in groove 14 of 5 bottom fixed connection's dop 3 of brush hair skeleton through plug 2, realize the installation of brush head 1, make things convenient for the installation and the dismantlement of the brush head 1 of different models, brush hair skeleton 5 bottom sets up spongy brush head 1, make brush hair skeleton 5 can not the direct contact test tube bottom, and then can not bruise or bump garrulous test tube bottom, it is comparatively long and thin when abluent test tube, be difficult to wash the bottom, through the rubber head 7 of getting rid of 5 tail ends of brush hair skeleton, the screw hole 13 of extension bar 10 and the 6 threaded connection of external screw thread head at 5 tops of brush hair skeleton, can be to the handle extension of test tube brush, so that to the cleanness to the test tube bottom.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a special test-tube brush of experiment convenient to change brush head, includes brush hair skeleton (5) and extension bar (10), its characterized in that: brush hair skeleton (5) bottom joint has brush head (1), brush hair skeleton (5) outer fixed surface is connected with two sets of brush hair (4), brush hair skeleton (5) top fixedly connected with external screw thread head (6), brush hair skeleton (5) top is provided with rubber head (7), rubber head (7) bottom is provided with recess (8), recess (8) and brush hair skeleton (5) top and external screw thread head (6) looks adaptation, extension bar (10) bottom set up threaded hole (13), extension bar (10) top fixedly connected with handle (11).

2. The special test tube brush convenient for replacing the brush head for the experiment as claimed in claim 1, is characterized in that: brush hair skeleton (5) bottom fixedly connected with dop (3), draw-in groove (14) have been seted up in dop (3), brush head (1) interior fixedly connected with plug (2), plug (2) and draw-in groove (14) looks adaptation, and draw-in groove (14) inner wall inner end symmetry set up with the triangular groove of plug (2) looks adaptation.

3. The special test tube brush convenient for replacing the brush head for the experiment as claimed in claim 1, is characterized in that: the top of the rubber head (7) is fixedly connected with a first hanging ring (9), and the top of the handle (11) is fixedly connected with a second hanging ring (12).

4. The special test tube brush convenient for replacing the brush head for the experiment as claimed in claim 1, is characterized in that: the outer walls of the rubber head (7) and the handle (11) are provided with anti-skid patterns.

5. The test tube brush special for experiments and convenient for replacing the brush head of claim 1, which is characterized in that: the bristles (4) are uniformly distributed on the bristle framework (5) in a radial shape.

6. The test tube brush special for experiments and convenient for replacing the brush head of claim 1, which is characterized in that: the brush head (1) is made of sponge.