CN211303097U

CN211303097U - Test tube capable of preventing liquid from splashing and falling off

Info

Publication number: CN211303097U
Application number: CN201921858774.2U
Authority: CN
Inventors: 刘自国; 焦丽琴; 庞兴荣
Original assignee: Tianjin Heng'ao Technology Development Co ltd
Current assignee: Tianjin Heng'ao Technology Development Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-21
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a test tube that prevents liquid spill and drop, test tube outer wall are equipped with the recess, and the test tube inner wall is cyclic annular protruding, and the recess corresponds with protruding position, and protruding and groove cross-section are semi-circular, rectangle, trapezoidal or triangle-shaped. The utility model has the advantages that: the liquid level in the test tube is limited by the bulge in the test tube, so that the liquid level cannot splash out of the test tube when the vortex is oscillated and uniformly mixed, and the liquid level can fall back into the test tube along the bulge direction; in addition, the groove in the outer wall increases the friction force of the outer wall of the test tube, so that the test tube is prevented from falling off when being clamped, and particularly, when the test tube is operated by a large-scale automatic manipulator, the test tube can be operated stably and quickly only by using a manipulator or a clamp gasket matched with the shape, and the possibility of test failure caused by the sliding accident of the test tube is reduced.

Description

Test tube capable of preventing liquid from splashing and falling off

Technical Field

The utility model relates to a test tube that prevents liquid spill and drop.

Background

Biological or chemical tests often require mixing a liquid with a liquid or a liquid with a powder in a test tube and then mixing using a vortex mixer. In the process of uniformly mixing, the bottom end of the test tube makes circular motion, so that the liquid rotates around the axial direction of the test tube, under the action of centrifugal force, the liquid can be attached to the wall of the test tube, and the liquid level is concave, as shown in figure 1. The concave shape of the liquid surface is more obvious along with the increase of the rotating speed of the mixer; when the rotating speed is too high, the highest point of the concave liquid level can exceed the top end of the test tube and splash out of the test tube opening. In addition, when the liquid in the test tube needs to be heated or the corrosive liquid needs to be prevented from hurting hands, a test tube clamp needs to be used, but the test tube surface is smooth and is easy to fall off. Also, when an automated device is used to perform an assay, a manipulator is required to hold and move the test tube. At this moment, the weight of test tube and liquid mainly bears by the frictional force that produces between anchor clamps and the test tube outer wall, also can be because the test tube wall is smooth, and frictional force is not enough, causes the test tube to drop.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a test tube that prevents liquid spill and drop can be applied to occasions such as laboratory, laboratory of all kinds of colleges and universities, scientific research and manufacturing enterprises such as environmental monitoring, medical health, petrochemical, food, metallurgy and do the usefulness such as mix, even and, extraction.

The utility model adopts the technical proposal that: the test tube that prevents liquid spill and drop, test tube outer wall are equipped with the recess, and the test tube inner wall is cyclic annular protruding.

Preferably, the groove corresponds to the protrusion position.

Preferably, the groove is one or more and the protrusion is one or more.

Preferably, the cross section of the protrusion is semicircular, semi-elliptical, rectangular, trapezoidal or triangular.

Preferably, the cross section of the groove is semicircular, semielliptical, rectangular, trapezoidal or triangular.

Preferably, the groove and the protrusion are provided at the proximal open end of the test tube.

The utility model has the advantages and positive effects that: the liquid level in the test tube is limited by the bulge in the test tube, so that the liquid level cannot splash out of the test tube when the vortex oscillates, and the liquid level can fall back into the test tube along the bulge direction; in addition, the groove in the outer wall increases the friction force of the outer wall of the test tube, so that the test tube is prevented from falling off when being clamped, and particularly, when the test tube is operated by a large-scale automatic manipulator, the test tube can be operated stably and quickly by only using a manipulator or a clamp gasket matched with the shape, and the probability of an invalid test caused by the test tube sliding accident is reduced.

Drawings

FIG. 1 is a schematic view of a prior art vortex oscillating liquid flow in a test tube;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of the flow of a vortex oscillating liquid according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an embodiment of the present invention.

In the figure:

1. test tube 2, projection 3 and groove

Detailed Description

An embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 2, the utility model relates to a test tube for preventing liquid from splashing and dropping, the outer wall of the test tube 1 is provided with one or more grooves 3 for preventing slipping, or matched with a test tube clamp or a mechanical arm with a matched shape to assist in clamping the test tube, the groove 3 can bear the weight of the test tube and liquid to prevent the test tube from slipping; protruding 2 cross-sections are semi-circular, the rectangle, it is trapezoidal or triangle-shaped, corresponding test tube clamp or the inboard fixed anchor clamps gasket that is equipped with of manipulator, be equipped with the bead on the anchor clamps gasket, the bead shape is corresponding semi-circular also, it is semi-oval, the rectangle, it is trapezoidal or triangle-shaped, can be one or be the multichannel, bead quantity is no longer than 1 outer wall recess 3 quantity of test tube, during the use, correspond recess 3 position with the bead position of anchor clamps gasket and carry test tube 1, the stability of test tube 1 has been strengthened to recess 3 and the bead of mutual gomphosis, make test tube 1 be difficult for.

The annular bulge 2 on the inner wall of the test tube 1 is used for blocking the liquid level and preventing the vortex from splashing out of the test tube during vortex mixing, as shown in fig. 3, when the rotating speed of the vortex mixer rises to a certain degree, the highest point of the concave liquid level in the test tube 1 reaches the bulge 2 inside the test tube; the rotating speed is further increased, the concave liquid level can not rise any more under the limitation of the bulge 2, the liquid changes the direction, is thrown out along the tangential direction of the bulge 2 and returns to the test tube 1 again, and therefore the liquid is prevented from splashing out of the test tube 1. The limit of the vortex oscillation speed and the liquid containing amount is reduced, the experimental efficiency is improved,

the number of the bulges 2 is the same as that of the grooves 3, and the positions of the bulges correspond to that of the grooves 3, so that the requirement on a thicker test tube wall can be avoided, and the test tube is also suitable for the structure even if a thin-wall test tube is adopted, correspondingly, the shapes of the grooves 3 are matched with the bulges 2, and the cross sections of the grooves are semicircular, rectangular, trapezoidal or triangular. Recess 3 and arch all set up at the nearly open end of test tube 1, also can not influence the use of test tube 1 when convenient being suitable for.

Example 1:

as shown in fig. 7, the test tube that prevents liquid spill and drop, the nearly open end of test tube 1 outer wall are equipped with

recess

3, and 1 inner wall of test tube is equipped with annular arch 2, and recess 3 is one with arch 2, is semi-circular, and recess 3 corresponds with 2 protruding positions. The cross section of the convex edge of the clamp gasket used correspondingly is also semicircular.

Example 2:

prevent the test tube of liquid spill and drop, the nearly open end of 1 outer wall of test tube is equipped with

recess

3, and 1 inner wall of test tube is equipped with annular arch 2, and recess 3 is equipped with threely, and the arch is equipped with one, and protruding 2 corresponds with the 3 positions of recess of outermost end. The cross sections of the bulges and the grooves 3 are trapezoidal.

Example 3:

as shown in fig. 4, the nearly open end of anti-liquid spill and the test tube that drops, 1 outer wall of test tube is equipped with

recess

3, and 1 inner wall of test tube is equipped with annular arch 2, and recess 3 is one with arch 2, is semi-ellipse, and recess 3 corresponds with 2 protruding positions. The cross section of the convex edge of the clamp gasket used correspondingly is also semi-elliptical.

Example 4:

as shown in fig. 5, the test tube that prevents liquid spill and drop, the nearly open end of 1 outer wall of test tube are equipped with

recess

3, and 1 inner wall of test tube is equipped with annular arch 2, and recess 3 is one with arch 2, is the triangle, and recess 3 corresponds with 2 protruding positions. The section of the convex edge of the clamp gasket used correspondingly is also triangular.

Example 5:

as shown in fig. 6, the nearly open end of anti-liquid spill and the test tube that drops, 1 outer wall of test tube is equipped with

recess

3, and 1 inner wall of test tube is equipped with annular arch 2, and recess 3 is one with arch 2, is trapezoidal, and recess 3 corresponds with 2 protruding positions. The cross section of the convex edge of the clamp gasket used correspondingly is also trapezoidal.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Prevent test tube that liquid spill and drop, its characterized in that: the test tube outer wall is equipped with the recess, the test tube inner wall is cyclic annular protruding.

2. The liquid spill and peel resistant cuvette of claim 1, wherein: the groove corresponds to the protrusion.

3. The liquid spill and drop resistant test tube of claim 1 or 2, wherein: the number of the grooves is one or more, and the number of the protrusions is one or more.

4. The liquid spill and peel resistant cuvette of claim 3, wherein: the cross section of the bulge is semicircular, semielliptical, rectangular, trapezoidal or triangular.

5. The liquid spill and peel resistant cuvette of claim 3, wherein: the cross section of the groove is semicircular, semielliptical, rectangular, trapezoidal or triangular.

6. The liquid spill and peel resistant cuvette of claim 3, wherein: the groove and the bulge are arranged at the near opening end of the test tube.