CN214386513U

CN214386513U - Test tube brush for laboratory

Info

Publication number: CN214386513U
Application number: CN202120497581.XU
Authority: CN
Inventors: 杨静; 毕玉; 叶志浪; 刘茂林; 雷望
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-10-15
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses a laboratory is with test-tube brush relates to laboratory device technical field, including the body of rod No. one, the bottom of the body of rod No. one is connected with the body of rod No. two, the inner wall connection of the body of rod No. one has the traction lever, the top of traction lever is connected with the handle that is located body of rod top, and the outer wall connection of traction lever bottom has the hollow tube, the bottom of hollow tube is connected with the pull rod, the both sides of pull rod are connected with the guide bar, No. two the both sides of body of rod outer wall are embedded to have a brush. The utility model discloses a set up guide way, pull rod and traction lever, when facing not unidimensional test tube, the traction lever is rotatory to drive the hollow tube through the screw thread and removes, and the hollow tube removes and drives the pull rod and removes, and the pull rod and then drives the inner wall removal of guide way, makes a brush remove downwards walking of guide way, hugs closely until with the test tube wall, increases the area of contact of a brush and test tube wall to be more convenient for clear up the test tube wall.

Description

Test tube brush for laboratory

Technical Field

The utility model relates to a laboratory device technical field specifically is a test-tube brush is used in laboratory.

Background

With the rapid development of economy and science and technology in China, the importance of children education is more and more deeply known, chemical laboratories have been built in most schools, and test tube brushes are common devices in the chemical laboratories.

Present test-tube brush structure is all fairly simple, the chemistry mr can say for us that to disclose the bottom of using the test-tube brush to clear up the test tube on the first day at last chemistry class and give and disclose brokenly the bottom of test tube, consequently the test-tube brush on the market is easy to disclose brokenly the bottom of test tube when using now, and the size of the test tube of laboratory differs, the inner wall can not effectually be hugged closely to the clearance of test-tube wall to current test-tube brush, make the clearance effect not good, it is also comparatively troublesome during the clearance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the test-tube brush on the market and disclose the bottom of test tube brokenly easily when using and the size of the test tube in laboratory differs, the inner wall can not effectually be hugged closely to the clearance of test-tube wall to current test-tube brush for the problem that cleaning effect is not good provides a laboratory test-tube brush.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a laboratory is with test-tube brush, includes the body of rod No. one, the bottom of the body of rod No. one is connected with the body of rod No. two, the inner wall connection of the body of rod No. one has the traction lever, the top of traction lever is connected with the handle that is located body of rod top, and the outer wall connection of traction lever bottom has the hollow tube, the bottom of hollow tube is connected with the pull rod, the both sides of pull rod are connected with the guide bar, No. two the both sides of body of rod outer wall are embedded to have a brush, the guide way has been seted up to the outer wall of a brush, the limiting plate has been cup jointed to the outer wall of the body of rod No. one, the inner wall connection of limiting plate has the spring, the one end of spring is connected with the connecting rod, the one end of connecting rod is connected with the fixture block that runs through the limiting plate outer wall, the bottom of the body of rod No. two is connected with No. two brushes.

Preferably, the outer wall equidistance of a pole body is provided with the draw-in groove that matches with the fixture block, the quantity of fixture block is two.

Preferably, the outer wall of the traction rod, which is positioned inside the second rod body, is provided with threads, and the inner wall of the hollow tube is connected with the outer wall of the traction rod through the threads.

Preferably, the number of the guide rods and the guide grooves is two, and the guide rods are matched with the joints of the inner walls of the guide grooves.

Preferably, the outer wall of the bottom end of the limiting plate is connected with a rubber pad.

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

1. the utility model discloses a set up limiting plate, spring and fixture block, when wasing the test tube, according to the length of test tube, downward extrusion limiting plate, the limiting plate receives the extrusion, makes the fixture block slide on the inclined plane of draw-in groove, gets into the inside of limiting plate to the length that the limiting plate that slides makes the body of rod and No. two bodies of rod be located the test tube inside is moderate, and the spacing effect of limiting plate prevents to poke the test tube bottom carelessly when wasing in the cleaning process;

2. the utility model discloses a set up the guide way, pull rod and traction lever, when facing not unidimensional test tube, rotatory handle, it is rotatory that the handle drives the traction lever, the traction lever is rotatory to drive the hollow tube through the screw thread and removes, the hollow tube removes and drives the pull rod and remove, the pull rod and then drives the guide bar and remove at the inner wall of guide way, make a brush remove downwards walking at the guide way, hug closely until with the test tube wall, increase the area of contact of a brush and test tube wall, thereby be more convenient for clear up the test tube wall.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is a schematic connection diagram of a limiting plate and a connecting rod according to the present invention;

fig. 4 is a schematic view of the connection between the first brush and the guide rod of the present invention.

In the figure: 1. a first rod body; 2. a second rod body; 3. a draw bar; 4. a hollow tube; 5. a first brush; 6. a second brush; 7. a handle; 8. a limiting plate; 9. a pull rod; 10. a spring; 11. a connecting rod; 12. a clamping block; 13. a guide groove; 14. a guide rod.

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.

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 simplification of description, but do not indicate or imply that the device or element 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 "disposed" 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. The following describes an embodiment of the present invention according to its overall structure.

Please refer to fig. 1-4, a laboratory test tube brush comprises a first rod body 1, the bottom end of the first rod body 1 is connected with a second rod body 2, the inner wall of the first rod body 1 is connected with a traction rod 3, the top end of the traction rod 3 is connected with a handle 7 positioned at the top end of the first rod body 1, the outer wall of the bottom end of the traction rod 3 is connected with a hollow tube 4, the bottom end of the hollow tube 4 is connected with a pull rod 9, two sides of the pull rod 9 are connected with guide rods 14, two sides of the outer wall of the second rod body 2 are embedded with a first brush 5, the outer wall of the first brush 5 is provided with a guide groove 13, the outer wall of the first rod body 1 is sleeved with a limiting plate 8, the inner wall of the limiting plate 8 is connected with a spring 10, one end of the spring 10 is connected with a connecting rod 11, one end of the connecting rod 11 is connected with a clamping block 12 penetrating through the outer wall of the limiting plate 8, and the bottom end of the second rod body 2 is connected with a second brush 6.

Please refer to fig. 1, the outer wall of the first rod body 1 is equidistantly provided with two locking slots matched with the locking blocks 12, so as to adjust the position of the limiting plate 8.

Please refer to fig. 1, the outer wall of the drawbar 3 inside the second rod body 2 is provided with a thread, the inner wall of the hollow tube 4 is connected with the outer wall of the drawbar 3 through the thread, and the drawbar 3 rotates to drive the drawbar 9 to move through the hollow tube 4.

Please refer to fig. 4, the number of the guide rods 14 and the guide slots 13 is two, and the connecting position of the guide rods 14 and the inner walls of the guide slots 13 is engaged, so that the guide rods 14 can move on the inner walls of the guide slots 13.

Please refer to fig. 2, the outer wall of the bottom end of the limiting plate 8 is connected with a rubber pad to prevent the test tube from being damaged when the test tube opening contacts the limiting plate 8.

The working principle is as follows: when the test tube is cleaned, the limiting plate 8 is extruded downwards according to the length of the test tube, the limiting plate 8 is extruded, the clamping block 12 slides on the inclined plane of the clamping groove and enters the limiting plate 8, so that the sliding limit plate 8 ensures that the first rod body 1 and the second rod body 2 have moderate length in the test tube, the limiting effect of the limiting plate 8 in the cleaning process prevents the bottom of the test tube from being accidentally punctured during cleaning, when facing to the test tubes of different sizes, the handle 7 is rotated, the handle 7 drives the traction rod 3 to rotate, the traction rod 3 rotates to drive the hollow tube 4 to move through threads, the hollow tube 4 moves to drive the pull rod 9 to move, the pull rod 9 further drives the guide rod 14 to move on the inner wall of the guide groove 13, the first hairbrush 5 moves downwards in the guide groove until being tightly attached to the wall of the test tube, the contact area between the first hairbrush 5 and the wall of the test tube is increased, and therefore the wall of the test tube can be better cleaned.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a laboratory is with test-tube brush, includes a body of rod (1), its characterized in that: the bottom of the first rod body (1) is connected with a second rod body (2), the inner wall of the first rod body (1) is connected with a traction rod (3), the top end of the traction rod (3) is connected with a handle (7) positioned at the top end of the first rod body (1), the outer wall of the bottom end of the traction rod (3) is connected with a hollow tube (4), the bottom end of the hollow tube (4) is connected with a pull rod (9), two sides of the pull rod (9) are connected with guide rods (14), two sides of the outer wall of the second rod body (2) are embedded with a first hairbrush (5), the outer wall of the first hairbrush (5) is provided with a guide groove (13), the outer wall of the first rod body (1) is sleeved with a limiting plate (8), the inner wall of the limiting plate (8) is connected with a spring (10), one end of the spring (10) is connected with a connecting rod (11), one end of the connecting rod (11) is connected with a clamping block (12) penetrating through the outer wall of the limiting plate (8), the bottom of the second rod body (2) is connected with a second brush (6).

2. The laboratory test tube brush of claim 1, wherein: the outer wall equidistance of a body of rod (1) is provided with the draw-in groove that matches with fixture block (12), the quantity of fixture block (12) is two.

3. The laboratory test tube brush of claim 1, wherein: the outer wall of the traction rod (3) located inside the second rod body (2) is provided with threads, and the inner wall of the hollow tube (4) is connected with the outer wall of the traction rod (3) through the threads.

4. The laboratory test tube brush of claim 1, wherein: the number of the guide rods (14) and the number of the guide grooves (13) are two, and the guide rods (14) are matched with the connection part of the inner walls of the guide grooves (13).

5. The laboratory test tube brush of claim 1, wherein: the outer wall of the bottom end of the limiting plate (8) is connected with a rubber pad.