Colorimetric method detection kit

Abstract

The utility model relates to a colorimetric method detection kit. The colorimetric method detection kit comprises a main shell, the main shell is of a hollow structure, the main shell extends in the left-right direction, the main shell comprises a reaction cavity located in the middle and buffer cavities located at the left end and the right end, and two sealing films are arranged in the main shell so that the reaction cavity can be separated from the buffer cavities; the left end and the right end of the main shell are in threaded connection with liquid storage pipes so that the liquid storage pipes can be screwed, and the liquid storage pipes move towards the main shell to pierce the sealing film, so that the reaction cavity is communicated with the liquid storage pipes; and the main shell is communicated with a sample injection pipe. The colorimetric method detection kit is easy to operate and rapid in detection, the detection process is greatly simplified, and a user can complete detection at home.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection, and particularly relates to a colorimetric detection kit. Background Art

[0002] The rapid detection kit is a common existing rapid detection device, and is widely used because of its fast detection speed, easy portability, and suitability for on-site detection. The utility model patent with the authorization announcement number of CN212207119U discloses a colorimetric detection kit. The colorimetric detection kit includes an isolation and communication mechanism and a box body in the shape of a shell. A first dissolution chamber and a second dissolution chamber are arranged in the box body. The isolation and communication mechanism is arranged between the first dissolution chamber and the second dissolution chamber, and the isolation and communication mechanism can realize the conversion of the state between the first dissolution chamber and the second dissolution chamber from an isolated state to a communicated state. The colorimetric detection kit makes the diaphragm tilt by moving the thimble upward, and then makes the first dissolution chamber communicate with the second dissolution chamber, and then makes the mixture of the test solution, enzyme, color developing agent and substrate mix. However, the ejector rod of the thimble of the colorimetric detection kit is located outside the box body, so that the colorimetric detection kit is liable to be affected by external force during carrying, causing the ejector rod to move upward and the diaphragm to tilt, and when in use, the substrate and the test solution flow directly into the second dissolution chamber without reacting in the first dissolution chamber, resulting in inaccurate detection results. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a colorimetric detection kit to solve the technical problem that in the existing colorimetric detection kit, the first dissolution chamber and the second dissolution chamber are communicated due to external force when not in use, resulting in inaccurate detection results.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A colorimetric detection kit includes a main housing. The main housing is of a hollow structure and extends in the left-right direction. The main housing includes a reaction chamber in the middle and buffer chambers at the left and right ends. Two sealing films are arranged inside the main housing to separate the reaction chamber from the buffer chambers. Liquid storage tubes are threadedly connected to both the left and right ends of the main housing. By screwing the liquid storage tubes, the liquid storage tubes move towards the main housing, thereby piercing the sealing films and making the reaction chamber communicate with the liquid storage tubes. A sampling tube is communicated with the main housing.

[0006] Further, a protrusion is arranged at one end of the liquid storage tube close to the main housing. External threads are arranged on the protrusion. Both the left and right ends of the main housing are open, and internal threads are arranged at both the left and right ends of the main housing for threaded connection between the main housing and the liquid storage tubes.

[0007] Further, the protrusion extends in the left - right direction.

[0008] Further, both the liquid storage tube and the protrusion are hollow inside, and one end of the protrusion close to the main housing is open so that the liquid storage tube communicates with the reaction chamber of the main housing.

[0009] Further, one end of the protrusion close to the main housing is set as a tip for piercing the sealing film.

[0010] Further, a tear - type buckle is sleeved on the protrusion, and the tear - type buckle is located between the main housing and the liquid storage tube to prevent the protrusion from piercing the sealing film; the tear - type buckle is formed by compression molding.

[0011] Further, the sampling tube is perpendicular to the main housing, and the sampling tube communicates with the reaction chamber.

[0012] Further, a cover plate is thread - connected to one end of the sampling tube opposite to the main housing.

[0013] Further, the material of the main housing is a transparent material for observing the color change inside the reaction chamber.

[0014] Further, the main housing and the sealing film are integrally formed.

[0015] Advantages of the present utility model:

[0016] The colorimetric detection kit of the present utility model is easy to operate and fast in detection, greatly simplifies the detection process, and users can complete the detection at home.

[0017] In the colorimetric detection kit of the present utility model, the liquid storage tube and the main housing are separated by a tear - type buckle, which avoids the liquid storage tube piercing the sealing film under external force, and further prevents the direct mixing of hydrogen peroxide, color developer, reagent to be detected and buffer solution, resulting in inaccurate detection results.

[0018] The dark and airtight space formed by the liquid storage tube and the buffer chamber in the colorimetric detection kit of the present utility model can improve the storage time of hydrogen peroxide and color developer contained in the liquid storage tube, and avoid the environmental pollution of hydrogen peroxide and color developer by the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the colorimetric detection kit in Example 1;

[0020] Figure 2 It is a schematic diagram of the structure of the main housing of the colorimetric detection kit in Example 1;

[0021] Figure 3 It is a schematic diagram of the structure of the liquid storage chamber of the colorimetric detection kit in Example 1;

[0022] Figure 4 It is a schematic structural diagram of the tear-off buckle of the colorimetric detection kit in Example 1.

[0023] In the figure: 1, main housing; 2, cover plate; 3, buffer cavity; 4, sealing film; 5, tear-off buckle; 6, liquid storage tube; 7, protrusion; 8, sampling tube. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] The embodiments of the colorimetric detection kit in the present invention are as Figures 1-4 shown.

[0026] Example 1

[0027] The colorimetric detection kit of this embodiment includes a main housing 1. The main housing 1 is a hollow structure and extends in the left-right direction. The main housing 1 includes a reaction cavity (not shown in the figure) in the middle and buffer cavities 3 at both the left and right ends. Two sealing films 4 are arranged inside the main housing 1 to separate the reaction cavity from the buffer cavity 3, and the sealing films 4 are integrally formed with the main housing 1. The material of the main housing 1 is a transparent plastic material to observe the color change in the reaction cavity. The material of the sealing film 4 is a transparent plastic material. Liquid storage tubes 6 are threadedly connected to both the left and right ends of the main housing 1, so that by screwing the liquid storage tubes 6, the liquid storage tubes 6 move towards the main housing 1, thereby piercing the sealing films 4, and then the reaction cavity is communicated with the liquid storage tubes 6. A protrusion 7 is arranged at one end of the liquid storage tube 6 close to the main housing 1. The protrusion 7 extends in the left-right direction, and an external thread is arranged on the protrusion 7. Both the left and right ends of the main housing 1 are open, and internal threads are arranged at both the left and right ends of the main housing 1 so that the protrusion 7 is threadedly connected to the main housing 1. Both the external thread and the internal thread extend in the left-right direction. One end of the protrusion 7 close to the main housing 1 is provided with a tip to pierce the sealing film. Both the liquid storage tube 6 and the protrusion 7 are hollow inside, and one end of the protrusion 7 close to the main housing 1 is open so that the liquid storage tube 6 is communicated with the reaction cavity of the main housing 1. A tear-off buckle 5 is sleeved outside the protrusion 7. The inner wall of the tear-off buckle 5 is closely attached to the outer wall of the protrusion 7. The tear-off buckle 5 is located between the main housing 1 and the liquid storage tube 6. After tearing off the tear-off buckle 5, rotate the liquid storage tube 6 to move towards the main housing 1, so that the protrusion 7 pierces the sealing film. A sampling tube 8 is communicated with the main housing 1. The sampling tube 8 is perpendicular to the main housing 1 and is communicated with the reaction cavity. One end of the sampling tube 8 opposite to the main housing 1 is threadedly connected with a cover plate 2. The tear-off buckle is compression molded. The materials of the liquid storage tube 6 and the protrusion 7 are both opaque materials to prevent the internal hydrogen peroxide and TMB from being inactivated.

[0028] When the colorimetric detection kit of the present utility model is in use, hydrogen peroxide and TMB chromogenic agent are respectively placed in two liquid storage tubes 6, and a buffer solution is contained in the reaction chamber 1. The front end of the liquid storage tube 6 is threadedly connected to the main housing 1, and the liquid storage tube 6 is separated from the main housing 1 by using a tear-off buckle 5. The reagent to be detected is placed in the reaction chamber through the sampling tube 8. The tear-off buckle is torn off, and the liquid storage tube 6 is rotated towards the direction close to the main housing 1, so that the tip of the protrusion 7 pierces the sealing film 4, thereby mixing hydrogen peroxide, chromogenic agent, reagent to be detected and buffer solution.

[0029] Finally, it should be noted that in the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

Claims

1. A colorimetric detection kit, characterized in that: It includes a main shell, which is a hollow structure and extends in the left and right directions. The main shell includes a reaction chamber located in the middle and buffer chambers located at the left and right ends. Two closing membranes are arranged inside the main shell to separate the reaction chamber from the buffer chamber; both the left and right ends of the main shell are threadedly connected with liquid storage tubes so that the liquid storage tubes can be twisted, and the liquid storage tubes move toward the direction of the main shell to pierce the closing membrane, thereby connecting the reaction chamber with the liquid storage tube; the main shell is connected with a sample injection tube.

2. The colorimetric detection kit according to claim 1, characterized in that: A protrusion is provided at one end of the liquid storage tube close to the main shell, and an external thread is provided on the protrusion. Both left and right ends of the main shell are open, and both left and right ends of the main shell are provided with internal threads so that the main shell and the liquid storage tube can be threadedly connected.

3. The colorimetric detection kit according to claim 2, characterized in that: The protrusion extends in the left-right direction.

4. The colorimetric detection kit according to claim 2, characterized in that: The liquid storage tube and the protrusion are both hollow inside, and one end of the protrusion close to the main shell is open so that the liquid storage tube is connected to the reaction chamber of the main shell.

5. The colorimetric detection kit according to claim 2, characterized in that: One end of the protrusion close to the main shell is configured as a pointed end so as to pierce the closing membrane.

6. The colorimetric detection kit according to claim 2, characterized in that: The protrusion is sleeved with a tear-type buckle, and the tear-type buckle is located between the main shell and the liquid storage tube to prevent the protrusion from piercing the closing film; the tear-type buckle is compression molded.

7. The colorimetric detection kit according to claim 1, characterized in that: The sample injection tube is perpendicular to the main shell, and the sample injection tube is communicated with the reaction chamber.

8. The colorimetric detection kit according to claim 1, characterized in that: One end of the injection tube opposite to the main housing is threadedly connected with a cover plate.

9. The colorimetric detection kit according to claim 1, characterized in that: The main shell is made of a transparent material to facilitate observation of color changes inside the reaction chamber.

10. The colorimetric detection kit according to claim 1, characterized in that: The main shell and the closing membrane are integrally formed.

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