DNA extraction and storage device

Abstract

The utility model particularly relates to a DNA (deoxyribonucleic acid) extraction and storage device, which belongs to the technical field of DNA extraction and storage equipment and comprises an operation shell, a vacuum inner container is fixedly mounted in the operation shell, an extraction piston is clamped in the vacuum inner container in a sliding manner, an operation clamping plate is fixedly mounted on the upper surface of the extraction piston, and a sampling needle tube is mounted in the operation clamping plate. A sampling operation rod is installed at the upper end of the operation clamping plate, a multifunctional plate is installed at the upper end of the sampling operation rod, a positioning buckle is installed at the upper end of the operation shell, a sealing soft film is installed at the lower end of the vacuum inner container, a packaging cover is installed at the lower end of the operation shell, and auxiliary clamping plates are fixedly installed on the two sides of the operation shell. The storage effect of the device on samples is improved, a two-side packaging structure is used, the cleanliness of the interior of the device is improved, the purity of the samples is improved, after extraction, the samples are immediately packaged through the device, secondary transfer of the samples is prevented, and the extraction and storage efficiency of the samples is improved.

Description

Technical Field

[0001] The utility model specifically relates to a DNA extraction and storage device, belonging to the technical field of DNA extraction and storage equipment. Background Art

[0002] Deoxyribonucleic acid is one of the four biological macromolecules contained in biological cells. DNA carries the genetic information necessary for the synthesis of RNA and protein, and is an essential biological macromolecule for the development and normal operation of organisms. In the process of DNA testing, multiple processes are required to extract it from the inside of biological cells, and then it is stored, transported, and tested. The existing DNA extraction device can quickly and quantitatively extract substances containing DNA, and the DNA storage device can achieve efficient storage of substances containing DNA. They are flexible and convenient to use. However, in the process of storing and using substances containing DNA, it needs to be transferred twice, which is cumbersome and inconvenient to operate, and it is easy to contact with the outside air, causing sample contamination. Utility Model Content

[0003] The utility model aims to provide a DNA extraction and storage device to address the deficiencies of the prior art, so as to improve the efficiency of device disassembly and assembly and reduce the influence of external forces on the device.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a DNA extraction and storage device, comprising an operating shell, a vacuum liner is fixedly installed inside the operating shell, an extraction piston is slidably clamped inside the vacuum liner, an operating card board is fixedly installed on the upper surface of the extraction piston, a sampling needle tube is installed inside the operating card board, a sampling operating rod is installed on the upper end of the operating card board, a multi-function board is installed on the upper end of the sampling operating rod, a positioning buckle is installed on the upper end of the operating shell, a sealing soft film is installed on the lower end of the vacuum liner, a packaging cover is installed on the lower end of the operating shell, and auxiliary clamping plates are fixedly installed on both sides of the operating shell.

[0005] Furthermore, in order to preserve the sealing effect at both ends of the device, a connecting operation hole is provided at the upper end of the operating shell of the operating shell, a soft sealing ring is mounted on the outer side of the operating card plate, the soft sealing ring and the connecting operation hole are slidably engaged with each other, and a connecting thread groove is provided on the upper surface of the operating card plate.

[0006] Furthermore, in order to quickly extract and drain external liquid, the sampling needle tube is embedded and installed in the center position of the operating card plate, and a cross liquid outlet pipe is fixedly installed on the upper end of the sampling needle tube. The cross liquid outlet pipe passes through the soft sealing ring, and a safety sealing film is embedded and installed inside the sampling needle tube.

[0007] Furthermore, in order to maintain the vacuum effect inside the upper end of the device when the device is operated, a mounting screw is provided at the lower end of the sampling operating rod, and the mounting screw and the connecting thread groove are rotatably engaged with each other. A sealing hose is fixedly sleeved on the outer side of the sampling operating rod, and the sealing hose and the connecting operating hole are slidably engaged with each other.

[0008] Furthermore, in order to improve the packaging effect of the lower end of the device, a connecting thread ring is provided on the outer side of the operating shell, the connecting thread ring and the packaging cover are threadedly connected to each other, and a plug-in cushion is embedded in the interior of the packaging cover.

[0009] Furthermore, in order to facilitate the carrying and use of the sampling operation rod, the packaging cover is provided with a fixed thread groove, and a connecting thread hole is opened at one end of the multi-function board, and the connecting thread hole and the fixed thread groove are rotatably engaged with each other.

[0010] Furthermore, in order to push the positioning buckle to fix the position of the multi-function board, a rotating mounting shaft is fixedly installed on one side of the upper surface of the operating shell, a return spring is sleeved on the outer side of the rotating mounting shaft, a rotating mounting hole is opened at the center position of the positioning buckle, the rotating mounting hole is sleeved on the outer side of the return spring, one end of the return spring and the rotating mounting shaft are fixedly connected to each other, and the other end of the return spring and the positioning buckle are fixedly connected to each other.

[0011] Furthermore, in order to improve the use effect of the positioning buckle, the positioning buckle includes an operating plate, the rotating mounting hole is opened at one end of the operating plate, a supporting positioning plate is fixedly installed on the outer side of the rotating mounting hole, and a triangular positioning block is provided on one side of the other end of the supporting positioning plate, and the triangular positioning block and the multi-function plate are slidably engaged with each other.

[0012] The technical effects and advantages of the utility model are as follows: a vacuum liner structure is used to improve the storage effect of the device on samples, a structure encapsulated on both sides is used to improve the cleanliness inside the device and the purity of the samples, and after extraction, the samples are immediately encapsulated by the device to prevent secondary transfer of the samples, thereby improving the extraction and storage efficiency of the samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model when it is unfolded;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model when in use;

[0015] Figure 3 It is a schematic diagram of the internal structure of the utility model when it is unfolded;

[0016] Figure 4 It is a schematic diagram of the internal structure of the operating shell part of the utility model.

[0017] In the figure: 1. operating shell; 2. vacuum liner; 3. extraction piston; 4. operating card board; 401. soft sealing ring; 5. sampling needle tube; 501. cross liquid outlet pipe; 502. insurance sealing film; 6. sampling operating rod; 601. mounting screw; 602. sealing hose; 7. multi-function board; 8. positioning buckle; 81. operating board; 82. supporting positioning board; 83. triangular positioning block; 801. rotating mounting shaft; 802. return spring; 9. packaging cover; 901. plug-in cushion; 10. auxiliary clamping plate; 11. sealing soft film. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 As shown, a DNA extraction and storage device comprises an operating shell 1, a vacuum liner 2 is fixedly installed inside the operating shell 1, an extraction piston 3 is slidably clamped inside the vacuum liner 2, an operating card board 4 is fixedly installed on the upper surface of the extraction piston 3, a sampling needle tube 5 is installed inside the operating card board 4, a sampling operating rod 6 is installed on the upper end of the operating card board 4, a multifunctional board 7 is installed on the upper end of the sampling operating rod 6, a positioning buckle 8 is installed on the upper end of the operating shell 1, a sealing soft film (11) is installed on the lower end of the vacuum liner 2, a packaging cover 9 is installed on the lower end of the operating shell 1, and auxiliary clamping plates 10 are fixedly installed on both sides of the operating shell 1.

[0020] A connecting operation hole is provided at the upper end of the operating shell 1, and a soft sealing ring 401 is sleeved on the outer side of the operating card plate 4. The soft sealing ring 401 and the connecting operation hole are slidably engaged with each other, and a connecting thread groove is provided on the upper surface of the operating card plate 4 to facilitate the sealing effect at both ends of the preservation device.

[0021] The sampling needle tube 5 is embedded and installed in the center position of the operating card plate 4. A cross liquid outlet pipe 501 is fixedly installed on the upper end of the sampling needle tube 5. The cross liquid outlet pipe 501 penetrates the soft sealing ring 401. A safety sealing film 502 is embedded and installed inside the sampling needle tube 5 to facilitate the rapid extraction and drainage of external liquid.

[0022] A mounting screw 601 is provided at the lower end of the sampling operating rod 6, and the mounting screw 601 and the connecting thread groove are rotatably engaged with each other. A sealing hose 602 is fixedly sleeved on the outer side of the sampling operating rod 6, and the sealing hose 602 and the connecting operating hole are slidably engaged with each other to maintain the vacuum effect inside the upper end of the device when the device is operated.

[0023] The outer side of the operating housing 1 is provided with a connecting thread ring, which is threadedly connected to the packaging cover 9, and a plug-in cushion 901 is embedded and installed inside the packaging cover 9 to improve the packaging effect of the lower end of the device. The packaging cover 9 is provided with a fixed thread groove, and a connecting thread hole is opened at one end of the multi-function board 7. The connecting thread hole and the fixed thread groove are rotatably engaged with each other, so that the sampling operation rod 6 can be carried and used.

[0024] A rotating mounting shaft 801 is fixedly installed on one side of the upper surface of the operating shell 1, and a return spring 802 is sleeved on the outer side of the rotating mounting shaft 801. A rotating mounting hole is opened at the center position of the positioning buckle 8, and the rotating mounting hole is sleeved on the outer side of the return spring 802. One end of the return spring 802 is fixedly connected to the rotating mounting shaft 801, and the other end of the return spring 802 is fixedly connected to the positioning buckle 8, so as to push the positioning buckle 8 to fix the position of the multi-function board 7.

[0025] The positioning buckle 8 includes an operating plate 81, a rotating mounting hole is opened at one end of the operating plate 81, a supporting positioning plate 82 is fixedly installed on the outer side of the rotating mounting hole, and a triangular positioning block 83 is arranged on one side of the other end of the supporting positioning plate 82. The triangular positioning block 83 and the multi-function plate 7 are slidably engaged with each other to improve the use effect of the positioning buckle 8.

[0026] When the utility model is used, the user moves the device to an appropriate position, rotates the sampling operating rod 6 to drive the connection threaded hole and the fixed threaded groove to disengage, rotates the sampling operating rod 6 to make the installation screw 601 rotate and mesh with each other between the connection threaded grooves, fixes the operating shell 1 through the auxiliary clamping plate 10, rotates the packaging cover 9 and the operating shell 1 to disengage, and makes the lower end of the device correspond to the appropriate position, pushes the multifunctional board 7 to push the sampling operating rod 6, the operating card plate 4 and the extraction piston 3 to move inside the device, and during the operation, the sealing hose 602 and the connection operation hole are closely fitted to each other, so as to maintain the vacuum effect between the operating card plate 4 and the vacuum liner 2, until the sampling needle tube 5 penetrates the sealing soft film (11) and extends to the outside to closely fit with the liquid to be extracted. At this time, the safety sealing film 502 is penetrated by the pressure difference between the inside and the outside. Under the action of internal and external pressures, the liquid is transported to the interior of the vacuum liner 2 through the sampling needle tube 5 and the cross liquid outlet tube 501 until the internal space of the device reaches a fixed value, and in the same time period, the extraction piston 3 is fully extended and moved to the other end of the device, and the multi-function board 7 pushes the positioning buckle 8 to rotate during the movement. Then, when the lower surface of the multi-function board 7 and the upper surface of the operating shell 1 are in contact with each other, the positioning buckle 8 will push the triangular positioning block 83 and the multi-function board 7 to slide and engage with each other under the elastic force of the return spring 802, thereby fixing the position of the sampling operating rod 6. When the sampling is completed, the user disengages the device from the original liquid, rotates the packaging cover 9 and the connecting threaded ring to rotate and engage with each other, and inserts the sampling needle tube 5 into the interior of the plug-in cushion 901, thereby sealing the device from the lower end of the device to achieve packaging and storage of the device.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A DNA extraction and storage device, characterized in that: The invention comprises an operating shell (1), wherein a vacuum liner (2) is fixedly installed inside the operating shell (1), an extraction piston (3) is slidably clamped inside the vacuum liner (2), an operating cardboard (4) is fixedly installed on the upper surface of the extraction piston (3), a sampling needle tube (5) is installed inside the operating cardboard (4), a sampling operating rod (6) is installed at the upper end of the operating cardboard (4), a multifunctional board (7) is installed at the upper end of the sampling operating rod (6), a positioning buckle (8) is installed at the upper end of the operating shell (1), a sealing soft film (11) is installed at the lower end of the vacuum liner (2), a packaging cover (9) is installed at the lower end of the operating shell (1), and auxiliary clamping plates (10) are fixedly installed on both sides of the operating shell (1).

2. A DNA extraction and storage device as claimed in claim 1, characterized in that: The upper end of the operating shell (1) of the operating shell (1) is provided with a connection operation hole, the outer side of the operating card plate (4) is sleeved with a soft sealing ring (401), the soft sealing ring (401) and the connection operation hole are slidably engaged with each other, and the upper surface of the operating card plate (4) is provided with a connection thread groove.

3. A DNA extraction and storage device as claimed in claim 2, characterized in that: The sampling needle tube (5) is inlaid and installed at the center position of the operating card plate (4); a cross liquid outlet pipe (501) is fixedly installed on the upper end of the sampling needle tube (5); the cross liquid outlet pipe (501) passes through the soft sealing ring (401); and a safety sealing film (502) is inlaid and installed inside the sampling needle tube (5).

4. A DNA extraction and storage device as claimed in claim 2, characterized in that: A mounting screw (601) is provided at the lower end of the sampling operation rod (6), and the mounting screw (601) and the connecting thread groove are rotatably engaged with each other. A sealing hose (602) is fixedly sleeved on the outer side of the sampling operation rod (6), and the sealing hose (602) and the connecting operation hole are slidably engaged with each other.

5. A DNA extraction and storage device as claimed in claim 1, characterized in that: A connecting threaded ring is provided on the outside of the operating housing (1), the connecting threaded ring and the packaging cover (9) are threadedly connected to each other, and a plug-in cushion (901) is embedded and installed inside the packaging cover (9).

6. A DNA extraction and storage device as claimed in claim 1, characterized in that: The packaging cover (9) is provided with a fixed thread groove, and one end of the multifunctional board (7) is provided with a connecting thread hole, and the connecting thread hole and the fixed thread groove are rotatably engaged with each other.

7. A DNA extraction and storage device as claimed in claim 6, characterized in that: A rotating mounting shaft (801) is fixedly mounted on one side of the upper surface of the operating housing (1), a return spring (802) is sleeved on the outer side of the rotating mounting shaft (801), a rotating mounting hole is opened at the center of the positioning buckle (8), the rotating mounting hole is sleeved on the outer side of the return spring (802), one end of the return spring (802) and the rotating mounting shaft (801) are fixedly connected to each other, and the other end of the return spring (802) and the positioning buckle (8) are fixedly connected to each other.

8. A DNA extraction and storage device as claimed in claim 7, characterized in that: The positioning buckle (8) comprises an operating plate (81), the rotating mounting hole is provided at one end of the operating plate (81), a supporting positioning plate (82) is fixedly installed on the outer side of the rotating mounting hole, a triangular positioning block (83) is provided on one side of the other end of the supporting positioning plate (82), and the triangular positioning block (83) and the multifunctional plate (7) are slidably engaged with each other.

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