Liquid separation centrifugal tube

Abstract

The utility model relates to the technical field of centrifuge tubes, in particular to a liquid separation centrifuge tube which comprises a test tube, an installation mechanism is arranged below the test tube, the installation mechanism comprises a hemispherical screw head, the upper end of the hemispherical screw head is fixedly communicated with a conical barrel and a straight barrel in sequence from outside to inside, a sealing gasket is installed on the outer side of the conical barrel, and the sealing gasket is connected with the straight barrel. The conical barrel is in sliding connection with the test tube through the clamping groove, the upper end of the sealing gasket abuts against the test tube, and the outer wall of the straight barrel is in threaded connection with the test tube. According to the liquid separation centrifugal tube, through cooperation of the test tube and the mounting mechanism, an operator inserts a conical barrel into a clamping groove and then rotates a nick to enable a straight barrel to be matched with a thread in the test tube, so that a semispherical screw head is mounted on the test tube, and the semispherical screw head can be quickly mounted through the conical barrel and the clamping groove; therefore, the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal tube technical field, concretely is a kind of centrifugal tube for separating liquid. BACKGROUND

[0002] Extraction is an experimental technique widely used in chemistry, chemical industry, biology, medicine and other fields. In the experimental process, centrifuge is often used to accelerate the centrifugation of experimental objects, and to promote the separation of mixed solutions in a short time.

[0003] For example, a centrifugal tube capable of separating liquid with the announcement number "CN203508052U", the through hole II is below the upper surface of the through hole I by rotating the screw head downward, when separating liquid is needed, the through hole II is above the upper surface of the through hole I by rotating the screw head upward, convenient to use, can realize complete separation of liquid, can avoid waste, and can improve the accuracy of experimental data. However, when installing the hemispherical screw head, the operator needs to consume a long time to align the hemispherical screw head with the connection between the test tube, so a long time is needed to start the liquid separation work, and the work efficiency is reduced. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that when installing the hemispherical screw head, the operator needs to consume a long time to align the hemispherical screw head with the connection between the test tube, so a long time is needed to start the liquid separation work, and the work efficiency is reduced, and provides a centrifugal tube for separating liquid.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A centrifugal tube for separating liquid is designed, which includes a test tube, an installation mechanism is arranged below the test tube, the installation mechanism includes a hemispherical screw head, a conical cylinder and a straight cylinder are sequentially and fixedly connected in communication from outside to inside on the upper end of the hemispherical screw head, a sealing gasket is installed on the outer side of the conical cylinder, the conical cylinder is slidably connected with the test tube through a clamping groove, the upper end of the sealing gasket abuts tightly against the test tube, and the outer wall of the straight cylinder is threadedly connected with the test tube.

[0007] Preferably, a test tube cover is installed on the upper end of the test tube.

[0008] Preferably, the clamping groove is processed on the test tube.

[0009] Preferably, threads are processed on the outer wall of the straight cylinder and the inner wall of the test tube.

[0010] Preferably, a notch is processed on the outer wall of the hemispherical screw head.

[0011] The utility model provides a kind of centrifugal tube for separating liquid, beneficial effect lies in: through the cooperation of test tube and mounting mechanism, operator inserts conical cylinder into clamping groove, then rotates score, makes straight cylinder cooperate with the thread in test tube, to install hemispherical screw head on test tube, to realize that hemispherical screw head can be installed quickly by conical cylinder and clamping groove, to improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is structure schematic diagram of the utility model;

[0013] Figure 2 It is Figure 1 front view sectional view;

[0014] Figure 3 It is Figure 1 partial top view sectional view;

[0015] Figure 4 It is connection relationship schematic diagram of test tube and clamping groove;

[0016] Figure 5 It is Figure 2 partial three-dimensional schematic view.

[0017] In the drawing: 1, test tube, 2, mounting mechanism, 201, hemispherical screw head, 202, gasket, 203, conical cylinder, 204, straight cylinder, 205, clamping groove, 3, score, 4, test tube cover. DETAILED DESCRIPTION

[0018] The utility model is further described below in connection with the drawings:

[0019] Refer to the attached Figures 1-5 : in the embodiment, a kind of centrifugal tube for separating liquid, including test tube 1, test tube 1 below is equipped with mounting mechanism 2, mounting mechanism 2 includes hemispherical screw head 201, first through-hole is processed in hemispherical screw head 201 inner wall, hemispherical screw head 201 upper end is successively fixed with conical cylinder 203 and straight cylinder 204 from outside to inside, conical cylinder 203 outside is equipped with gasket 202, gasket 202 can play sealing effect, conical cylinder 203 is slidably connected with test tube 1 by clamping groove 205, gasket 202 upper end is tightly abutted with test tube 1, straight cylinder 204 outer wall is threadedly connected with test tube 1, second through-hole is processed in straight cylinder 204.

[0020] Test tube 1 upper end is equipped with test tube cover 4, test tube cover 4 is rubber material, need when can be sleeved and buckled in the upper outer wall of test tube 1, it can also be manually removed according to need, clamping groove 205 is processed on test tube 1, straight cylinder 204 outer wall and test tube 1 inner wall are all processed with thread, score 3 is processed on hemispherical screw head 201 outer wall.

[0021] Working principle:

[0022] When using the liquid separation centrifugal tube:

[0023] When installing the hemispherical screw head 201, the operator inserts the tapered cylinder 202 into the clamping groove 205, and then rotates the notch 3 to make the straight cylinder 204 match the thread in the test tube 1, thereby installing the hemispherical screw head 201 on the test tube 1. The hemispherical screw head 201 can be quickly installed through the tapered cylinder 202 and the clamping groove 205, thereby improving the work efficiency.

[0024] When performing the experiment, the hemispherical screw head 201 is counterclockwise rotated, so that the second through hole (consistent with the through hole II4 in CN203508052U) on the straight cylinder 204 is just completely located inside the first through hole (consistent with the through hole I3 in CN203508052U) on the hemispherical screw head 201, then a certain amount of mixed solution to be centrifuged and separated is loaded, then the test tube cover 4 is covered, and then the test tube 1 is placed into the centrifuge for centrifugation.

[0025] After the centrifugation is completed, the hemispherical screw head 201 is clockwise rotated, so that the second through hole on the straight cylinder 204 is just completely separated from the first through hole on the hemispherical screw head 201, the test tube cover 4 is opened, and the lower liquid is separated.

[0026] After the complete separation, the hemispherical screw head 201 is counterclockwise rotated again, so that the second through hole on the straight cylinder 204 is just completely located inside the first through hole on the hemispherical screw head 201, and the upper liquid is poured out from the upper opening of the test tube, so that the mixed liquid is completely separated. The specific separation process is consistent with the separation process in CN203508052U, and here, no more redundant description is made.

[0027] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A centrifuge tube comprising a test tube (1), characterized in that: The test tube (1) is provided with an installation mechanism (2) below it. The installation mechanism (2) includes a hemispherical screw head (201). The upper end of the hemispherical screw head (201) is connected to a conical cylinder (203) and a straight cylinder (204) from the outside to the inside. A sealing gasket (202) is installed on the outside of the conical cylinder (203). The conical cylinder (203) is slidably connected to the test tube (1) through a groove (205). The upper end of the sealing gasket (202) is pressed against the test tube (1). The outer wall of the straight cylinder (204) is threadedly connected to the test tube (1).

2. The centrifuge tube according to claim 1, characterized in that: The test tube (1) is fitted with a test tube cap (4) at the top.

3. The centrifuge tube according to claim 1, characterized in that: The slot (205) is machined on the test tube (1).

4. The centrifuge tube according to claim 1, characterized in that: The outer wall of the straight cylinder (204) and the inner wall of the test tube (1) are both machined with threads.

5. The centrifuge tube according to claim 1, characterized in that: The outer wall of the hemispherical screw head (201) is machined with grooves (3).

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