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CN-224227054-U - Double-system reaction tube

CN224227054UCN 224227054 UCN224227054 UCN 224227054UCN-224227054-U

Abstract

The utility model provides a double-system reaction tube, which relates to the field of test tubes, and comprises a test tube body (10) and a cover body, wherein the test tube body (10) consists of two test tubes which are arranged side by side, and one side wall of the two test tubes which are close to each other is communicated, the cover body is arranged corresponding to the test tube body (10), the cover body comprises a cover plate (21) and a sealing plug (22), the sealing plug (22) is fixedly arranged on the bottom surface of the cover plate (21), the outer ring of the sealing plug (22) is matched with the inner ring of the test tube body (10), a plurality of sealing rubber rings (221) are uniformly arranged on the outer ring of the sealing plug (22) along the axial direction of the sealing plug, and the size of the cover plate (21) is larger than the outer wall size of the test tube body (10). The reaction tube realizes the detection steps of firstly reacting the solution A and then mixing the solution A and the solution B after the reaction on the premise of not opening the cover, avoids the environmental or reagent pollution caused by opening the cover, simplifies the detection steps and improves the detection efficiency.

Inventors

  • TAN YA
  • ZONG HUA
  • LI CAIYUN
  • ZHANG XINYUE
  • ZHANG JIE

Assignees

  • 重庆市南岸区疾病预防控制中心

Dates

Publication Date
20260512
Application Date
20250530

Claims (8)

  1. 1. The double-system reaction tube is characterized by comprising a test tube body and a cover body, wherein the test tube body consists of two test tubes which are arranged side by side, one side wall of the two test tubes which are close to each other is communicated, the cover body corresponds to the test tube body, the cover body comprises a cover plate and a sealing plug, the sealing plug is fixedly arranged on the bottom surface of the cover plate, the outer ring of the sealing plug is matched with the inner ring of the test tube body, a plurality of sealing rubber rings are uniformly arranged on the outer ring of the sealing plug along the axial direction of the sealing plug, and the size of the cover plate is larger than that of the outer wall of the test tube body.
  2. 2. A dual system reaction tube as set forth in claim 1 wherein said two tubes are slidably disposed at their interconnection.
  3. 3. The dual-system reaction tube as set forth in claim 2, wherein said baffle plate has rubber layers disposed on the bottom and side walls thereof contacting the test tube body.
  4. 4. A double-system reaction tube according to claim 2 or 3 is characterized in that a positioning head is arranged at the top of the baffle through a supporting column, the longitudinal section of the positioning head is of a conical structure with a small upper part and a big lower part, a through hole is formed in the middle of a sealing plug, a positioning sleeve is arranged in the through hole in a sliding mode, a groove is formed in the middle of the bottom surface of the positioning sleeve corresponding to the positioning head, and a plurality of groups of clip assemblies are arranged on the inner wall of the groove corresponding to the positioning head.
  5. 5. The dual-system reaction tube of claim 4, wherein the clip assembly comprises a slider and a return spring, a plurality of spring grooves are uniformly formed in the side wall of the groove and around the central axis of the positioning sleeve, the slider is slidably arranged in the spring grooves, the slider is connected with the bottoms of the corresponding spring grooves through the return spring, and an inclined surface structure matched with the positioning head is arranged on the bottom surface of one end, far away from the return spring, of the slider.
  6. 6. The dual-system reaction tube of claim 4, wherein the diameter of the positioning sleeve is larger than the width of the baffle plate and the diameter of the groove is smaller than the width of the baffle plate.
  7. 7. The dual-system reaction tube of claim 4, wherein the top surface of the positioning sleeve is connected with the bottom surface of the cover plate through a tension spring, at least two sliding rods are arranged on the top surface of the positioning sleeve and positioned on the outer ring of the tension spring, one ends of the sliding rods, far away from the positioning sleeve, penetrate through the cover plate, the top surface of the cover plate is provided with a fixed slot, limiting blocks are arranged on the top ends of the sliding rods corresponding to the fixed slot, a positioning shaft is arranged between the limiting blocks on the top surface of the fixed slot, a rotary table is rotatably arranged on the outer wall of the positioning shaft, which is positioned on the upper side of the fixed slot, and blind holes are formed on the rotary table corresponding to the limiting blocks.
  8. 8. The dual-system reaction tube of claim 7, wherein the outer diameter of the limiting block is larger than the diameter of the sliding rod, and the outer diameter of the turntable is larger than the diameter of the fixing groove.

Description

Double-system reaction tube Technical Field The utility model relates to the technical field of detection test tubes, in particular to a double-system reaction tube. Background In medical detection, disease control centers or daily laboratories, detection tubes are suitable for key tools for sample collection, reaction or storage, and the disease control centers usually adopt detection tubes for virus detection, bacteria culture, immunodetection, molecular biology detection and other projects. At present, the test tube structure in the detection field is basically unchanged, and is usually a tube body with a spherical and round tube-shaped bottom. The Chinese patent document CN209061162U discloses a test tube which comprises a tube body, wherein an accommodating space is formed in the tube body, an opening is formed in the top of the tube body, a first magnetic component is arranged on the tube body, a cover body is arranged on the top of the tube body and covers the opening, a second magnetic component matched with the first magnetic component is arranged on the cover body, the cover body is fixed on the tube body through magnetic attraction between the second magnetic component and the first magnetic component, and the test tube effectively solves the problems that in the prior art, the cover body is connected with the tube body through threads and is inconvenient to use. However, in the detection of nucleic acid amplification, there are two sequential reactions, namely, one solution (such as solution a) is reacted with the added sample for a period of time, and then the other solution (such as solution B) is added to perform reaction calibration with the first reacted solution, so as to obtain a detection item of a test result; after the solution A reacts and in the process of adding the solution B, the solution A is easy to contact with air after the reaction by opening the cover body of the detection test tube, particularly, during nucleic acid amplification, amplified products are easy to escape due to the cover opening, so that the problems of external environment gene pollution, easy infection of operators due to aerosol in the air and the like are caused, the accuracy of the test result is influenced, and the environment pollution (especially, the detection of some infectious germs and the easy diffusion of the infectious germs) are caused. For the detection, the test tube of the solution A after the reaction is usually placed in a refrigerator at 4 ℃ for cooling in low pressure, sterile and other environments at present, and then the solution B is added after being uncapped, but the detection process is complicated, the cost is high, the detection efficiency is low, the risk of gene fragment escaping exists, and the method cannot be suitable for single and rapid detection. Disclosure of utility model Aiming at the problems in the prior art, the utility model aims to provide a double-system reaction tube which can realize that a solution A reacts first and the reacted solution A is mixed with a solution B on the premise of not opening a cover, thereby effectively avoiding environmental and reagent pollution caused by opening the cover. The aim of the utility model is achieved by the following technical scheme: The double-system reaction tube comprises a tube body and a cover body, wherein the tube body is formed by two tubes arranged side by side and communicated with one side wall of the two tubes close to each other, the cover body corresponds to the tube body and comprises a cover plate and a sealing plug, the sealing plug is fixedly arranged on the bottom surface of the cover plate, the outer ring of the sealing plug is matched with the inner ring of the tube body, a plurality of sealing rubber rings are uniformly arranged on the outer ring of the sealing plug along the axial direction of the sealing plug, and the size of the cover plate is larger than that of the outer wall of the tube body. Based on the further optimization of above-mentioned scheme, two test tube interconnect department slip sets up the baffle for shelter from, seal of two test tube junction areas, avoid two in-vitro solution to mix at first, lead to detection error. Based on the further optimization of above-mentioned scheme, baffle and bottom surface, the lateral wall of test tube body contact set up the rubber layer respectively for realize sealed, avoid oozing liquid. Based on the further optimization of the scheme, the top of the baffle is provided with the positioning head through the supporting column, the longitudinal section of the positioning head is of a conical structure with a small upper part and a big lower part, the middle part of the sealing plug is provided with the through hole, the through hole is internally provided with the positioning sleeve in a sliding way, the middle part of the bottom surface of the positioning sleeve is provided with the groove corresponding to the positioning head, the inner wall