Separated collection centrifugal filter tube

Abstract

The utility model discloses a centrifugal filter tube for separated collection, which adopts an internal and external arrangement design and specifically comprises a collection outer tube and a centrifugal inner tube, the collecting outer pipe comprises a connecting section and a collecting section which are arranged up and down and are detachable, and the connecting section is hermetically connected with the collecting section; the upper end of the connecting section is provided with an assembly port for hermetically inserting the centrifugal inner tube; the centrifugal inner tube is provided with a hollow filtering part, an ultrafiltration membrane arranged around the inner peripheral wall of the filtering part is arranged in the centrifugal tube, the upper end of the centrifugal tube is provided with an assembling part in sealing fit with the assembling opening, and the upper end of the centrifugal tube is further provided with a detachable sealing cover. According to the technical scheme of the separation type collection centrifugal filter tube, through improvement in multiple aspects of optimizing the separation efficiency, improving the filter effect, enhancing the maintenance convenience and safety and the like, the performance of a traditional centrifugal filter technology is remarkably improved, and the high-standard requirement for high-purity liquid treatment is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal filter technical field, concretely relates to a centrifugal filter pipe of separation formula collection. BACKGROUND

[0002] Centrifugal filters can be used to separate biological substances such as antibody enzymes, nucleic acids and proteins for the purpose of concentration, desalination, purification and fractionation. The centrifugal filter mainly uses the filter membrane fixed at the lower end of the centrifugal tube to realize the concentration of the target biological sample, and the feed liquid is divided into filtrate and concentrated liquid. Both the filtrate and the concentrated liquid can be collected and used by the user. In the prior art, after centrifugal filtration is performed by the centrifugal tube, when supernatant is needed, the supernatant can be directly poured out to quantitatively take the solution. However, in some scenarios, the lower sediment needs to be used. Since the current centrifugal tube cannot completely separate the liquid and the sediment, sometimes the sediment needs to be dissolved with a solvent, but the residual liquid in the tube may affect the subsequent experiment. If the supernatant is heated and dried to retain the sediment, the sediment may be decomposed or sublimed, which makes it impossible to completely collect the sediment. SUMMARY

[0003] In view of the problem that the ordinary centrifugal tube in the prior art cannot completely separate the liquid and the sediment after centrifugal filtration, the utility model provides a centrifugal filter pipe for separation and collection.

[0004] The technical scheme adopted by the utility model is as follows: a centrifugal filter pipe for separation and collection, comprising a collection outer tube and a centrifugal inner tube; the collection outer tube comprises a connection section and a collection section arranged above and below and detachable, and the connection section and the collection section are sealingly connected; the upper end of the connection section is provided with an assembly opening for sealingly inserting the centrifugal inner tube; the centrifugal inner tube is provided with a filter part arranged in a hollow manner; the centrifugal tube is provided with an ultrafiltration membrane arranged around the inner circumferential wall of the filter part; the upper end of the centrifugal tube is provided with an assembly part sealingly matched with the assembly opening; and the upper end of the centrifugal tube is further provided with a detachable sealing cover.

[0005] In the technical scheme, the centrifugal filter pipe provided in the utility model adopts the centrifugal inner tube and the collection outer tube arranged inside and outside. After centrifugal filtration, the supernatant can be separated into the collection outer tube while the sediment is retained in the filter inner tube, so that complete solid-liquid separation is realized. The collection outer tube has a connection section and a collection section structure. The centrifugal inner tube can be assembled into the connection section through the assembly opening. During centrifugal filtration, the supernatant can be collected into the collection section. The collection section and the connection section adopt a separable structure to facilitate the removal of the supernatant after centrifugation. The inner centrifugal tube can be stably assembled through the assembly part and the assembly opening to ensure the stability during centrifugation. The filter part at the lower end of the inner centrifugal tube is provided with an ultrafiltration membrane to realize the retention of the sediment, which facilitates the removal of the sediment by the technical personnel.

[0006] Preferably, the outer wall of the collecting tube assembly opening is provided with a positioning ring convex which is in contact with the outer wall of the upper end of the centrifugal inner tube.

[0007] Preferably, the collecting section is transparent and provided with volume marks on the outer wall.

[0008] Preferably, the filter section and the collecting section are arranged in a conical structure.

[0009] Preferably, the inner wall of the connecting section is provided with a plurality of lower positioning parts which are arranged at intervals and in contact with the bottom of the filter section.

[0010] Preferably, the lower end of the connecting section is provided with a connecting head which is connected to a screw joint provided at the upper end of the collecting section.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The present application has high separation efficiency. The supernatant can be directly collected to a designated position through the design of the centrifugal filter tube, which reduces the steps of pouring or recovering the container in the traditional method and improves the operation efficiency.

[0013] 2. In the present application, the filter section of the centrifugal inner tube is designed as a hollow structure and is provided with an ultrafiltration membrane, which can effectively trap sediments and solid particles and ensure the thoroughness of the separation process. This design significantly reduces the impurity content of the filtered liquid and is suitable for liquid treatment with high purity requirements.

[0014] 3. In the present application, the collecting outer tube is assembled with the centrifugal inner tube through a detachable connecting section, which facilitates easy removal of the supernatant after centrifugation and easy cleaning. This design reduces the manual operation steps and improves the maintenance convenience of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the specific embodiments or prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0016] Figure 1 A perspective view of the centrifugal filter tube with separate collection provided in the embodiments of the present application.

[0017] Figure 2 A sectional view of the centrifugal filter tube with separate collection provided in the embodiments of the present application.

[0018] Collecting outer tube 100, connecting section 110, positioning ring convex 111, lower positioning part 112, connecting head 113, screw interface 114, collecting section 120, centrifugal inner tube 200, filtering part 210, assembling part 220, ultrafiltration membrane 300, sealing cover 400. DETAILED DESCRIPTION

[0019] The embodiments of the technical scheme of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and therefore only serve as examples, and cannot limit the protection scope of the utility model.

[0020] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be the usual meaning understood by the technical personnel in the field to which the utility model belongs.

[0021] As shown in Figure 1 and Figure 2 , the utility model embodiment provides a centrifugal filter pipe of separation type collection, the centrifugal filter pipe adopts inner and outer arrangement design, the structure is compact and the layout is reasonable. This design enables the equipment to adapt to various liquid processing requirements during use, has high flexibility and reliability; specifically including collecting outer tube 100 and centrifugal inner tube 200;The collecting outer tube 100 includes the connecting section 110 and the collecting section 120 arranged up and down and detachable, the connecting section 110 is sealingly connected with the collecting section 120;The upper end of connecting section 110 is provided with an assembling opening for the sealing insertion of centrifugal inner tube 200;The centrifugal inner tube 200 is provided with the filtering part 210 of openwork arrangement, the centrifugal tube is provided with the ultrafiltration membrane 300 arranged around the inner circumferential wall of filtering part 210, the centrifugal tube upper end is provided with the assembling part 220 sealingly matched with the assembling opening, and the centrifugal tube upper end is further provided with detachable sealing cover 400.

[0022] As shown in Figure 1 and Figure 2 , through the above setting, the centrifugal filter pipe provided in the embodiment adopts the centrifugal inner tube 200 and the collecting outer tube 100 of inner and outer arrangement, after centrifugal filtration, the supernatant can be separated into the collecting outer tube 100 while the precipitate is left in the filtering inner tube, so that complete solid-liquid separation is realized;The collecting outer tube 100 has the structure of connecting section 110 and collecting section 120, the centrifugal inner tube 200 can be assembled into through the assembling opening by connecting section 110, and the supernatant can be collected into the collecting section 120 during centrifugal filtration, the collecting section 120 and the connecting section 110 adopt separable structure to facilitate taking out and pouring out the supernatant after centrifugation is completed;The inner centrifugal tube can be stably assembled with the assembling opening through the assembling part 220, to ensure the stability during centrifugation, the filtering part 210 at the lower end of the inner centrifugal tube is provided with the ultrafiltration membrane 300, to realize the retention of the precipitate, facilitating the technical personnel to take out the precipitate.

[0023] As Figure 1 and Figure 2 shown, in order to improve the stability of the collection outer tube 100 and the centrifugal inner tube 200 after assembly during the centrifugal operation, the embodiment is provided with a positioning ring convex 111 on the inner circumferential wall of the assembly port of the collection outer tube 100, which abuts against the outer circumferential wall of the upper end of the centrifugal inner tube 200. The positioning ring convex 111 has elasticity. In this way, the provision of the elastic positioning ring convex 111 on the inner circumferential wall of the assembly port of the collection outer tube 100 can provide the necessary stability, while effectively buffering the slight movement during the centrifugal process and reducing the risk of damage to the filter part 210 caused by vibration or movement. At the same time, the inner wall of the connecting section 110 is provided with a plurality of lower positioning parts 112 arranged at intervals corresponding to the bottom of the centrifugal inner tube 200, and each lower positioning part 112 abuts against the bottom of the filter part 210. In this way, the inner wall of the connecting section 110 abuts against the bottom of the centrifugal inner tube 200 through the plurality of lower positioning parts 112 arranged at intervals, further enhancing the stability of the filter part 210 and preventing loosening or movement during the filtration process.

[0024] As Figure 1 and Figure 2 shown, the collection section 120 of the outer collection tube in the embodiment is arranged in a transparent manner, and the outer circumferential wall of the collection section 120 is provided with capacity markings. The design of transparent arrangement and capacity markings not only facilitates the monitoring of the volume of liquid by the operator, but also reduces the risk of liquid overflow and improves the safety of the entire system. In actual application, the collection section 120 and the filter part 210 and the collection section 120 are arranged in a conical structure, which is conducive to the collection of supernatant and improves the separation effect. In order to facilitate the assembly of the outer collection tube structure, the embodiment is provided with a connecting head 113 at the lower end of the connecting section 110, which is connected to a screw interface 114 provided at the upper end of the collection section 120. The design of the entire centrifugal filter tube focuses on maintenance convenience. Through the design of detachable assembly structure and transparent collection section 120, it is easy to take out the supernatant and clean or replace the filter element during use, reducing the complexity and time consumption of manual operation.

[0025] In summary, the separation type collection centrifugal filter tube technical scheme improves the performance of traditional centrifugal filtration technology through optimization of separation efficiency, improvement of filtration effect, enhancement of maintenance convenience and safety, etc., and meets the high standard requirements for high-purity liquid treatment.

[0026] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A centrifugal filter tube for separate collection, characterized by; The application relates to a centrifugal filter device. The collecting outer tube (100) comprises an upper and lower detachably connected connecting section (110) and collecting section (120), and the connecting section (110) is sealingly connected with the collecting section (120); the upper end of the connecting section (110) is provided with an assembling opening for sealingly inserting the centrifugal inner tube (200); The centrifugal inner tube (200) is provided with a hollow arranged filter part (210), an ultrafiltration membrane (300) is arranged around the inner wall of the filter part (210) in the centrifugal tube, the upper end of the centrifugal tube is provided with an assembling part (220) for sealingly cooperating with the assembling opening, and the upper end of the centrifugal tube is further provided with a detachable sealing cover (400).

2. The centrifugal filter tube with separate collection of claim 1, wherein; The inner wall of the assembling opening of the collecting outer tube (100) is provided with a positioning ring convex (111) abutting against the outer periphery of the upper end of the centrifugal inner tube (200); the positioning ring convex (111) is elastic.

3. The centrifugal filter tube with separate collection of claim 1, wherein; The collecting section (120) is transparently arranged, and the outer periphery of the collecting section (120) is provided with capacity marks.

4. The centrifugal filter tube with separate collection of claim 1, wherein; The filter part (210) and the collecting section (120) are conically arranged.

5. The centrifugal filter tube with separate collection of claim 1, wherein; The inner wall of the connecting section (110) is provided with spaced lower positioning parts (112) corresponding to the bottom of the centrifugal inner tube (200), and each lower positioning part (112) abuts against the bottom of the filter part (210).

6. The centrifugal filter tube with separate collection of claim 1, wherein; The lower end of the connecting section (110) is provided with a connecting head (113) connected with a screw joint (114) arranged at the upper end of the collecting section (120).

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