CN106179552B - A kind of integral type ultra-filtration centrifuge tube - Google Patents

Abstract

The invention discloses an integrated ultrafiltration centrifuge tube, which comprises a tube body, a liquid inlet, an ultrafiltration membrane, a bottom plate, and an adaptable plug. The top of the mouth is fixed with a top cover, and the inside of the tube body is fixed with an ultrafiltration membrane and a bottom plate sequentially from top to bottom. There is an internal thread on the inner wall, and an adaptable plug is fixed at the bottom of the pipe body. The adaptable plug is composed of an inner plug body, a baffle plate, and an adaptive block. The bottom of the baffle, the outer diameter of the baffle is the same as the outer diameter of the pipe, and an adaptable block is fixed on the bottom of the baffle. In the present invention, the tube body, the base plate and the liquid inlet are made into an integrated structure, so that the structure of the ultrafiltration centrifuge tube becomes simple, and the mutual collision between parts is not easy to occur, so that the ultrafiltration centrifuge tube is not easy to be damaged.

Description

An integrated ultrafiltration centrifuge tube

【Technical field】

The invention relates to the technical field of medical instruments, in particular to the technical field of ultrafiltration centrifuge tubes.

【Background technique】

The ultrafiltration centrifuge tube is a commonly used medical device, which is mainly used for the concentration and desalination of some liquid samples containing protein. The ultrafiltration centrifuge tube should minimize the occurrence of vibration during use. If the vibration is serious, the ultrafiltration centrifuge tube is easy to be damaged. Existing ultrafiltration centrifuge tubes often adopt a split structure, so that the two tubes are prone to mutual vibration and damage.

【Content of invention】

The purpose of the present invention is to solve the problems in the prior art, and propose an integrated ultrafiltration centrifuge tube, which can make the ultrafiltration centrifuge tube an integrated structure and is not easy to be damaged.

In order to achieve the above object, the present invention proposes an integrated ultrafiltration centrifuge tube, including a tube body, a liquid inlet, an ultrafiltration membrane, a bottom plate, and an adaptable plug. The top of the tube body is fixed with a liquid inlet, and the liquid inlet is Funnel-shaped, the top of the liquid inlet is fixed with a top cover, and the inside of the tube is fixed with an ultrafiltration membrane and a bottom plate from top to bottom. There is an internal thread on the inner wall of the lower part of the pipe body, and an adaptable plug is fixed at the bottom of the pipe body. The adaptable plug is composed of an inner plug body, a baffle plate, and an adaptable block. The inner plug body is provided with an external thread matched with the internal thread. The inner plug body is fixed on the bottom of the baffle, and the outer diameter of the baffle is the same as that of the tube, and an adaptable block is fixed on the bottom of the baffle, and the tube body, the bottom plate, and the liquid inlet are integrated structures, and the bottom plate and the liquid outlet pipe An integral structure, the baffle and the inner plug body are of an integral structure, and the adaptable block is detachably fixed at the bottom of the baffle.

Preferably, a ring of elastic sealing ring matching with the top of the liquid inlet is fixed on the inner side of the top cover.

Preferably, both the liquid outlet pipe and the bottom cover are located inside the pipe body, the bottom cover and the liquid outlet pipe are connected by threads, and there is a gap between the bottom cover and the top of the inner plug body.

Preferably, a number of anti-slip protrusions are evenly distributed on the outer wall of the liquid inlet, and the anti-slip protrusions are hemispherical.

Preferably, a one-way leather valve with a flow direction from bottom to top is installed at the liquid inlet end of the liquid outlet pipe.

Preferably, the shape of the adaptation block is adapted to the bottom of the centrifuge where the ultrafiltration centrifuge tube is placed.

Beneficial effects of the present invention: the present invention makes the structure of the ultrafiltration centrifuge tube simple by making the tube body, the bottom plate, and the liquid inlet into an integrated structure, and it is not easy for the parts to collide with each other, so that the ultrafiltration centrifuge tube is not easy to damage; the setting of the adaptable plug enables the ultrafiltration centrifuge tube to adapt to different centrifuges, making the ultrafiltration centrifuge tube have good adaptability; the bottom cover and the outlet pipe, the adaptable plug and the tube body are all threaded, so that the bottom cover The adaptable plug is not easy to loosen during the centrifugation process; the setting of the one-way leather valve effectively prevents the liquid from flowing out of the liquid outlet pipe during the centrifugation process.

The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.

【Description of drawings】

Fig. 1 is a front view of an integrated ultrafiltration centrifuge tube of the present invention.

In the figure: 1-tube body, 2-bottom plate, 3-liquid inlet, 4-adaptive plug, 5-top cover, 10-internal thread, 11-ultrafiltration membrane, 20-liquid outlet pipe, 21-bottom cover, 22-one-way leather valve, 30-anti-slip protrusion, 40-external thread, 41-inner plug body, 42-baffle plate, 43-adaptive block, 50-elastic sealing ring.

【Detailed ways】

Referring to Fig. 1, an integrated ultrafiltration centrifuge tube of the present invention includes a tube body 1, a liquid inlet 3, an ultrafiltration membrane 11, a bottom plate 2, and an adaptation plug 4, and the top of the tube body 1 is fixed with a liquid inlet 3, The liquid inlet 3 is funnel-shaped, the top of the liquid inlet 3 is fixed with a top cover 5, and the inside of the pipe body 1 is fixed with an ultrafiltration membrane 11 and a bottom plate 2 sequentially from top to bottom, and the bottom of the bottom plate 2 is provided with a liquid outlet pipe 20, The outlet end of the liquid outlet pipe 20 is provided with a bottom cover 21, the inner wall of the lower part of the pipe body 1 has an internal thread 10, and an adaptable plug 4 is fixed at the bottom of the pipe body 1, and the adaptable plug 4 is composed of an inner plug body 41, a baffle plate 42. The adaptable block 43 is formed. The inner plug body 41 is provided with an external thread 40 matching the internal thread 10. The inner plug body 41 is fixed on the bottom of the baffle plate 42. The outer diameter of the baffle plate 42 is the same as the outer diameter of the pipe body 1. Similarly, the bottom of the baffle plate 42 is fixed with an adaptive block 43, and the inner side of the top cover 5 is fixed with an elastic sealing ring 50 that matches the top of the liquid inlet 3. Inside, the bottom cover 21 and the liquid outlet pipe 20 are threadedly connected, and there is a gap between the bottom cover 21 and the top of the inner plug body 41. On the outer wall of the liquid inlet 3, there are several anti-slip protrusions 30 evenly distributed, and the anti-slip protrusions The opening 30 is hemispherical, and the liquid inlet end of the liquid outlet pipe 20 is equipped with a one-way leather valve 22 whose flow direction is from bottom to top. 2. It has an integrated structure with the liquid outlet pipe 20. The shape of the adapting block 43 is adapted to the bottom of the centrifuge where the ultrafiltration centrifuge tube is placed. The baffle plate 42 and the inner plug body 41 are integrated. 43 is fixed on the bottom of the baffle plate 42 in a detachable manner.

Working process of the present invention:

In the working process of the integrated ultrafiltration centrifuge tube of the present invention, the tube body 1, the bottom plate 2, and the liquid inlet 3 are in an integrated structure, so that the structure of the ultrafiltration centrifuge tube becomes simple, and the mutual collision between the parts is not easy to occur , so that the ultrafiltration centrifuge tube is not easy to be damaged; the setting of the adaptable plug 4 enables the ultrafiltration centrifuge tube to adapt to different centrifuges, so that the ultrafiltration centrifuge tube has good adaptability; the bottom cover 21 and the outlet pipe 20, the adaptable plug 4 Both the pipe body 1 are threaded so that the bottom cover 21 and the adaptable plug 4 are not easy to loosen during centrifugation; the setting of the one-way leather valve 22 effectively prevents liquid from flowing out of the liquid outlet pipe 20 during centrifugation.

The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims (6)

1. an integrated ultrafiltration centrifuge tube, characterized in that: comprising a tube body (1), a liquid inlet (3), an ultrafiltration membrane (11), a bottom plate (2), an adaptation plug (4), the tube A liquid inlet (3) is fixed on the top of the body (1), and the liquid inlet (3) is funnel-shaped, and a top cover (5) is fixed on the top of the liquid inlet (3). An ultrafiltration membrane (11) and a bottom plate (2) are fixed in turn, the bottom of the bottom plate (2) is provided with a liquid outlet pipe (20), and the outlet end of the liquid outlet pipe (20) is provided with a bottom cover (21). There is an internal thread (10) on the inner wall of the lower part of the body (1), and an adaptation plug (4) is fixed at the bottom of the pipe body (1), and the adaptation plug (4) consists of an inner plug body (41), a baffle (42), The adaptable block (43) is composed, the inner plug body (41) is provided with the external thread (40) matched with the internal thread (10), the inner plug body (41) is fixed on the bottom of the baffle (42), and the baffle The outer diameter of the plate (42) is the same as that of the pipe body (1), and the bottom of the baffle plate (42) is fixed with an adaptation block (43), and the pipe body (1), bottom plate (2) and liquid inlet (3) are One-piece structure, the bottom plate (2) and the liquid outlet pipe (20) are one-piece structure, the baffle plate (42) and the inner plug body (41) are one-piece structure, the adapting block (43) is detachable Be fixed on the bottom of the baffle (42). 2. An integrated ultrafiltration centrifuge tube as claimed in claim 1, characterized in that: the inside of the top cover (5) is fixed with a ring of elastic sealing rings (50) that match the top of the liquid inlet (3) . 3. A kind of integrated ultrafiltration centrifuge tube as claimed in claim 1, characterized in that: the liquid outlet pipe (20) and the bottom cover (21) are all located inside the tube body (1), and the bottom cover (21) Adopt threaded connection with the liquid outlet pipe (20), there is a gap between the bottom cover (21) and the top of the inner plug body (41). 4. A kind of integrated ultrafiltration centrifuge tube as claimed in claim 1, characterized in that: several anti-slip protrusions (30) are evenly distributed on the outer wall of the liquid inlet (3), and the anti-slip protrusions (30) Hemispherical. 5. An integrated ultrafiltration centrifuge tube as claimed in claim 4, characterized in that: the liquid inlet end of the outlet pipe (20) is equipped with a one-way leather valve (22) whose flow direction is from bottom to top . 6. A kind of integrated ultrafiltration centrifuge tube as claimed in claim 1, characterized in that: the shape of the adapting block (43) is adapted to the bottom of the centrifuge where the ultrafiltration centrifuge tube is placed.