Ultra-fast PCR (Polymerase Chain Reaction) detection tube convenient to operate

Abstract

The utility model discloses an ultrafast PCR (Polymerase Chain Reaction) detection tube convenient to operate, and relates to the technical field of molecular biological detection consumables, the ultrafast PCR detection tube comprises an inner tube and a positioning component, the outer side of the inner tube is connected with an outer tube in a sliding manner, the positioning component is arranged above the inner tube, and the positioning component comprises a top ring, a rotating shaft, a torsion spring, a rotating plate, a clamping plate and a fixing ring, the interiors of the two ends of the top ring are rotationally connected with rotating shafts, and the outer sides of one ends of the rotating shafts are sleeved with torsional springs. According to the ultrafast PCR detection tube convenient to operate, through the arrangement of a positioning assembly, when an inner tube is inserted into an outer tube, an inclined plane on a fixed ring is in contact with an inclined plane at the bottom of a clamping plate, so that the clamping plate automatically moves outwards, and after insertion, a torsional spring drives a rotating plate to rotate, so that the clamping plate moves to the bottom of the fixed ring, and the inner tube is inserted into the outer tube; and the inner pipe and the outer pipe are automatically locked and fixed, so that the sealing performance of the detection pipe is prevented from being influenced by accidental loosening.

Description

TECHNICAL FIELD

[0001] The utility model relates to molecular biology detection consumable technical field, concretely is a kind of superfast PCR detection tube of easy operation. BACKGROUND

[0002] PCR tube is a reactor vessel commonly used in PCR amplification reaction implementation, and a typical PCR amplification reaction is completed by repeatedly heating and cooling the PCR tube placed therein by PCR thermal cycler, and in this process, the temperature conduction is from the heating metal block of PCR thermal cycler to the PCR tube placed therein, and then the heat is transferred to the PCR reaction liquid in the tube through the tube wall of the PCR tube, so as to trigger the amplification reaction.

[0003] For example, the utility model discloses a kind of superfast PCR detection tubes with CN219429994U. The utility model improves the liquid temperature rising speed by the way of increasing the specific surface area of liquid to shorten the amplification time of PCR by constituting closed narrow space by inner tube and outer tube, but in actual use process, after inserting inner tube into outer tube, it is inconvenient to quickly fix between them, it can be loosened by accidentally touching inner tube in the process of moving detection tube, so as to cause the problem that it will affect the airtightness in amplification process.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a kind of superfast PCR detection tube of easy operation is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of superfast PCR detection tube of easy operation to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of superfast PCR detection tube of easy operation, including inner tube and positioning assembly, the outer side of the inner tube is slidably connected with outer tube, the positioning assembly is set on the top of inner tube, the positioning assembly includes top ring, pivot, torsion spring, rotating plate, clamping plate and fixed ring, the both ends inside of top ring are rotatably connected with pivot, and the outside of one end of pivot is sleeved with torsion spring, the middle part of pivot is fixed with rotating plate, and the bottom of rotating plate is provided with clamping plate, and one side of clamping plate is provided with fixed ring.

[0007] Further, the lower end of the inner tube is stepped, and the stepped top surface of the lower end of the inner tube is attached to the bottom of the inner tube.

[0008] Further, the torsion spring is fixedly connected with the top ring, and the torsion spring is also fixedly connected with the rotating plate.

[0009] Further, the upper portion of the rotating plate is provided with anti-skid strips, and the anti-skid strips are equidistantly distributed on one side of the rotating plate.

[0010] Further, the fixed ring is in the shape of a right trapezoid in cross section, and the fixed ring is fixedly connected with the outer tube.

[0011] Further, the top of the top ring is symmetrically provided with a limiting plate, and the middle portion of the positioning assembly is provided with a connecting assembly.

[0012] Further, the connecting assembly comprises a connecting ring and a threaded groove, the inner portion of the top ring is fixedly provided with the connecting ring, and the outer side of the connecting ring and the inner portion of the upper end of the inner tube are both provided with the threaded groove.

[0013] Further, the connecting assembly further comprises a sealing ring, the bottom of the top ring is fixedly provided with the sealing ring, and the sealing ring is tightly attached to the inner tube.

[0014] The utility model provides a convenient operation's super fast PCR detection tube possesses the following beneficial effects:

[0015] 1. The utility model discloses a positioning assembly is set up, when the inner tube is inserted into the inside of outer tube, the inclined surface on the fixed ring will contact the inclined surface of the bottom of the clamping plate, so the clamping plate will move to the outside automatically, and after splicing, the torsional spring will drive the rotating plate to rotate, so that the clamping plate moves to the bottom of the fixed ring, and the inner tube and the outer tube are locked and fixed automatically, the sealing performance of the detection tube is affected by accidental loosening, and when separating, the friction between the hand and the rotating plate can be increased through the anti-skid strip, so that the clamping plate and the fixed ring can be separated quickly by pinching the rotating plate on both sides, and the rotating angle of the rotating plate can be limited through the limiting plate, and then the inner tube can be taken out from the outer tube by pulling, so that the operation is very convenient.

[0016] 2. The utility model discloses a connecting assembly is set up, because the connecting ring and the inner tube are connected through the threaded groove, so when the inner tube is damaged, only needs to replace the inner tube, does not need to replace entirely, so that the positioning assembly can be used repeatedly for many times, is favorable to saving use cost, and the sealing performance between the top ring and the inner tube and the outer tube can be improved through the sealing ring of rubber material when installing, so that the airtight performance of the detection tube is further maintained in the amplification process. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model discloses a convenient operation's super fast PCR detection tube;

[0018] Figure 2 It is the inner tube three-dimensional structure schematic diagram of the utility model discloses a convenient operation's super fast PCR detection tube;

[0019] Figure 3 The utility model discloses a convenient operation's ultra -fast PCR detection pipe's fixed ring cross section structure schematic diagram.

[0020] In the drawing: 1, inner tube, 2, outer tube, 3, positioning assembly, 301, top ring, 302, pivot, 303, torsional spring, 304, rotating plate, 305, clamping plate, 306, fixed ring, 4, anti -skid strip, 5, limiting plate, 6, connecting assembly, 601, connecting ring, 602, thread groove, 603, sealing ring. DETAILED DESCRIPTION

[0021] The utility model discloses a convenient operation's ultra -fast PCR detection pipe's fixed ring cross section structure schematic diagram.

[0022] As Figures 1 to 3 Shown, a convenient operation's ultra -fast PCR detection pipe, including inner tube 1 and positioning assembly 3, and the outer side of inner tube 1 is slidably connected with outer tube 2, and positioning assembly 3 is set at the top of inner tube 1, and positioning assembly 3 includes top ring 301, pivot 302, torsional spring 303, rotating plate 304, clamping plate 305 and fixed ring 306, and the both ends inside pivot 302 is rotatably connected with torsional spring 303, and one end outside pivot 302 is sleeved with torsional spring 303, and the middle part of pivot 302 is fixed with rotating plate 304, and the bottom of rotating plate 304 is provided with clamping plate 305, and one side of clamping plate 305 is provided with fixed ring 306, and the inside lower end of outer tube 2 is stepped, and the inside lower end step top surface of outer tube 2 is attached with the bottom of inner tube 1, and the bottom of inner tube 1 is contacted with the step surface of the inside lower end of outer tube 2, to form a sandwiched reaction cavity to react, and torsional spring 303 is fixedly connected with top ring 301, and torsional spring 303 is also fixedly connected with rotating plate 304, and after inserting, torsional spring 303 will drive rotating plate 304 to rotate, to make clamping plate 305 move to the bottom of fixed ring 306, and automatically lock and fix between inner tube 1 and outer tube 2, to avoid affecting the sealing performance of detection tube due to accidental loosening, and the section of fixed ring 306 is right trapezoidal, and fixed ring 306 is fixedly connected with outer tube 2, and when inserting inner tube 1 into the inside of outer tube 2, the inclined surface on fixed ring 306 will be contacted with the inclined surface on the bottom of clamping plate 305, so that clamping plate 305 will automatically move outward, and the upper part of rotating plate 304 is provided with anti -skid strip 4, and anti -skid strip 4 is equidistantly distributed about one side of rotating plate 304, and the friction between hand and rotating plate 304 can be increased through anti -skid strip 4, and the top of top ring 301 is symmetrically provided with limiting plate 5, and the middle part of positioning assembly 3 is provided with connecting assembly 6, and by pinching the rotating plate 304 of both sides, clamping plate 305 and fixed ring 306 can be quickly separated, and the rotating angle of rotating plate 304 can be limited through limiting plate 5.

[0023] As Figure 3As shown, the connecting assembly 6 comprises a connecting ring 601 and a threaded groove 602, the inside of the top ring 301 is fixed with the connecting ring 601, and the outer side of the connecting ring 601 and the inside of the upper end of the inner tube 1 are both provided with the threaded groove 602, since the connecting ring 601 and the inner tube 1 are connected through the threaded groove 602, when the threaded groove 602 is damaged, only the inner tube 1 needs to be replaced, without the need for complete replacement, so that the positioning assembly 3 can be reused for many times, the connecting assembly 6 further comprises a sealing ring 603, the bottom of the top ring 301 is fixed with the sealing ring 603, and the sealing ring 603 is tightly attached to the inner tube 1, the sealing ring 603 made of rubber material can improve the sealing performance between the top ring 301 and the inner tube 1 and the outer tube 2.

[0024] In summary, the convenient operation super-fast PCR detection tube has the following advantages: Figure 1 、 Figure 2 and Figure 3 As shown, the connecting assembly 6 comprises a connecting ring 601 and a threaded groove 602, the inside of the top ring 301 is fixed with the connecting ring 601, and the outer side of the connecting ring 601 and the inside of the upper end of the inner tube 1 are both provided with the threaded groove 602, since the connecting ring 601 and the inner tube 1 are connected through the threaded groove 602, when the threaded groove 602 is damaged, only the inner tube 1 needs to be replaced, without the need for complete replacement, so that the positioning assembly 3 can be reused for many times, the connecting assembly 6 further comprises a sealing ring 603, the bottom of the top ring 301 is fixed with the sealing ring 603, and the sealing ring 603 is tightly attached to the inner tube 1, the sealing ring 603 made of rubber material can improve the sealing performance between the top ring 301 and the inner tube 1 and the outer tube 2.

[0025] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A super fast PCR detection tube with convenient operation, comprising an inner tube (1) and a positioning assembly (3), characterized in that, The outer side of the inner tube (1) is slidably connected with an outer tube (2), the positioning assembly (3) is arranged above the inner tube (1), the positioning assembly (3) comprises a top ring (301), a rotating shaft (302), a torsional spring (303), a rotating plate (304), a clamping plate (305) and a fixing ring (306), the both ends of the top ring (301) are rotatably connected with the rotating shaft (302), one end of the rotating shaft (302) is sleeved with the torsional spring (303) outside, the middle part of the rotating shaft (302) is fixedly connected with the rotating plate (304), the bottom of the rotating plate (304) is provided with the clamping plate (305), and one side of the clamping plate (305) is provided with the fixing ring (306).

2. The easy-to-handle ultrafast PCR detection tube according to claim 1, characterized in that, The inner lower end of the outer tube (2) is stepped, and the stepped top surface of the inner lower end of the outer tube (2) is attached to the bottom of the inner tube (1).

3. The easy-to-handle ultrafast PCR detection tube according to claim 1, characterized in that, The torsional spring (303) is fixedly connected with the top ring (301), and the torsional spring (303) is also fixedly connected with the rotating plate (304).

4. The easy-to-handle ultrafast PCR detection tube according to claim 1, characterized in that, The upper part of the rotating plate (304) is provided with anti-skid strips (4), and the anti-skid strips (4) are equidistantly distributed on one side of the rotating plate (304).

5. The easy-to-handle ultrafast PCR detection tube according to claim 1, characterized in that, The cross section of the fixing ring (306) is a right trapezoid, and the fixing ring (306) is fixedly connected with the outer tube (2).

6. The easy-to-handle ultrafast PCR detection tube according to claim 1, characterized in that, The top of the top ring (301) is symmetrically provided with a limiting plate (5), and the middle part of the positioning assembly (3) is provided with a connecting assembly (6).

7. The easy-to-handle ultrafast PCR detection tube according to claim 6, characterized in that, The connecting assembly (6) comprises a connecting ring (601) and a threaded groove (602), the inner part of the top ring (301) is fixedly connected with the connecting ring (601), and the outer side of the connecting ring (601) and the inner part of the upper end of the inner tube (1) are both provided with the threaded groove (602).

8. The easy-to-handle ultrafast PCR detection tube according to claim 7, characterized in that, The connecting assembly (6) further comprises a sealing ring (603), the bottom of the top ring (301) is fixedly connected with the sealing ring (603), and the sealing ring (603) is tightly attached to the inner tube (1).

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