DNA extraction kit with good stability

Abstract

The utility model relates to the technical field of DNA extraction kits, in particular to a DNA extraction kit with good stability, which comprises a box body, a box cover, an adsorption fixing assembly and a lifting assembly, through the arrangement of an adsorption fixing device, when the box body is placed on a placing surface, a first push rod is rotated to push a suction cup out of a first groove, the suction cup is adsorbed with the placing surface, and then the box body is placed on the lifting assembly; the box body is fixed on the adsorption surface, and then the downward extending length of each first push rod is adjusted to ensure that the box body is in a horizontal state; when the box body is taken down from the placing surface, a second push rod is lifted upwards, so that a sealing ring at the second end part of the second push rod is far away from a second groove, air enters a sucking disc from the interior of a first push rod, and the sucking disc is separated from the placing surface, so that the stability of the box body is improved; through the arrangement of the lifting assembly, proper adjustment can be performed according to the size of the reagent tube, the condition that the reagent tube shakes in the kit is reduced, and the stability of the kit body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of DNA extraction kits, in particular to a DNA extraction kit with good stability. Background Art

[0002] DNA (deoxyribonucleic acid) is the carrier of genetic information of organisms and is of vital importance to life science research. In the fields of molecular biology, genetics, biotechnology, etc., DNA extraction is a basic step in experiments. Whether it is gene cloning, gene expression analysis, genotype identification or disease diagnosis, high-quality DNA samples are required.

[0003] After the nucleic acid extraction is completed, the reagent tube is often placed in the box body. Although there are many DNA extraction kits on the market, they still have certain problems in terms of stability. For example, some kits may cause degradation or contamination during the DNA extraction process due to poor stability of the kit, thereby affecting the quality and quantity of DNA. In addition, the operation steps of some kits are cumbersome and require professionals to operate correctly, which also limits their application in scientific research and industrial fields.

[0004] Therefore, the development of a DNA extraction kit with good stability has become an urgent need in the current scientific research and industrial fields. This kit has good stability to ensure that the DNA is not damaged during the extraction and storage process. At the same time, the operation steps of the kit should be as simple as possible to facilitate non-professional use. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a DNA extraction kit with good stability, which has the advantages of good stability and solves the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a DNA extraction kit with good stability, comprising a box body, a box cover connected to the top of the box body and a bottom plate fixed to the bottom of the box body, wherein the bottom plate is located on the outside of the box body and has a plurality of adsorption and fixing components, the adsorption and fixing components comprising a suction cup, a first push rod and a second push rod, the suction cup is connected to the first push rod, the first push rod is located at one end of the suction cup and has a second groove, the suction cup has a notch corresponding to the opening position of the second groove, a second through hole communicating with the second groove is provided in the first push rod above the second groove, and the opening size of the second through hole is larger than the opening size of the second groove, the second push rod is movably inserted into the first push rod through the second through hole, and a sealing ring fitting with the second groove is installed at the end of the second push rod close to the suction cup.

[0007] Further preferably, a first push handle is provided on the outer peripheral wall of the first end portion of the first push rod, a second push handle is provided on the first end portion of the second push rod, and the length of the first push rod is smaller than the length of the second push rod.

[0008] Further preferably, an annular baffle is fixedly provided on the inner circumferential wall of the second through hole located at the first end of the first push rod, the inner circumferential wall of the baffle is in contact with the outer circumferential wall of the second push rod, the baffle material is ferrous metal material, and a magnetic block is installed on the outer circumferential wall of the second push rod located below the baffle.

[0009] Further preferably, a first groove opening downward and matching the size of the suction cup is provided at the bottom end of the base plate, the suction cup is installed in the first groove, and the base plate is provided with a first through hole above the first groove that longitudinally penetrates the base plate and communicates with the first groove, the first push rod is installed in the first through hole, and the first push rod can move up and down in the first through hole.

[0010] Further preferably, a fixing piece is fixed on the upper surface of the bottom plate at the periphery of the first push rod, the inner wall of the fixing piece is provided with a first thread, the outer peripheral side wall of the push rod is provided with a second thread, and the first thread matches the second thread.

[0011] Further preferably, the box body is provided with a lifting assembly, the lifting assembly includes a screw, a screw sleeve and a knob, two opposite inner side walls of the box body are provided with third grooves, the third grooves are arranged vertically, screws are installed in the two third grooves, a placement box is provided in the box body, both sides of the placement box are fixedly connected with screw sleeves near the bottom, the screw sleeves are arranged vertically, the screw sleeves are connected to the screw, the second end of the screw is fixed to the bottom of the third groove by a first rotating sleeve, the first end of the screw passes through the box body and is connected to the box body by a second rotating sleeve, and the first end of the screw extends upward and is connected to a knob.

[0012] Further preferably, the box cover is provided with a slot matching the knob at a position corresponding to the knob.

[0013] Further preferably, a placement groove is opened at the inner bottom end of the box body, the placement groove is arranged horizontally, and a shock-absorbing material is placed in the placement groove.

[0014] The beneficial effects of using the utility model are:

[0015] Compared with the prior art, the utility model provides a DNA extraction kit with good stability, which has the following beneficial effects:

[0016] 1. The utility model adopts the setting of the adsorption fixing device. When the box body is placed on the placement surface, the suction cup is pushed out from the first groove by rotating the first push rod, and adsorbed with the placement surface, so that the box body is fixed on the adsorption surface, and then the downward extension length of each first push rod is adjusted to ensure that the box body is in a horizontal state; when the box body is removed from the placement surface, it is only necessary to lift the second push rod upward so that the sealing ring at the second end of the second push rod is away from the second groove, so that air enters the suction cup from the inside of the first push rod, so that the suction cup falls off from the placement surface, thereby improving the stability of the box body;

[0017] 2. The utility model arranges a knob, a screw, a threaded sleeve and a shock-absorbing material. The shock-absorbing material is arranged at the bottom of the box body to reduce the shock of the placement box. The screw is rotated by the knob to drive the placement box to rise and fall through the threaded sleeve. Therefore, it can be appropriately adjusted according to the size of the reagent tube, reducing the shaking of the reagent tube in the reagent box and further improving the stability of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a DNA extraction kit with good stability;

[0019] Figure 2 A schematic diagram of the structure of a DNA extraction kit with good stability;

[0020] Figure 3 It is a schematic diagram of the structure of position B of a DNA extraction kit with good stability;

[0021] Figure 4 The diagram is a structural diagram of a baffle of a DNA extraction kit with good stability.

[0022] Reference numerals include:

[0023] Box body, 11-third groove, 12-shock absorbing material;

[0024] Box cover, 21-card slot;

[0025] Bottom plate, 31-first groove, 32-first through hole, 33-fixing member, 331-first thread, 34-anti-sliding block;

[0026] Adsorption fixing component, 41-suction cup, 42-first push rod, 421-second groove, 422-second through hole, 423-second thread, 424-baffle, 4241-vent, 43-first push handle, 44-second push rod, 441-magnetic block, 45-second push handle, 46-sealing ring;

[0027] Place box, 51-screw sleeve;

[0028] 6-lifting assembly, 61-screw, 62a-first rotating sleeve, 62b-second rotating sleeve, 63-knob. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the technical solution more clear, the technical solution is further described in detail below in conjunction with specific implementation methods. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the technical solution.

[0030] Please refer to Figures 1 to 4 A DNA extraction kit with good stability comprises a box body 1 and a box cover 2 connected to the top of the box body 1, and a bottom plate 3 fixed to the bottom of the box body 1, wherein an anti-sliding block 34 is provided at the bottom of the bottom plate 3, and the material of the anti-sliding block 34 can be rubber. The anti-sliding block 34 can increase the friction force of the bottom plate 3 when it is placed to a certain extent, thereby preventing the box body 1 from moving under the action of a certain degree of external force, and preventing the impact of the box body 1 on the reagent tube, thereby reducing the damage to the internal reagent tube.

[0031] Reference Figure 1 The bottom plate 3 is located outside the box body 1 and is provided with a plurality of adsorption fixing components 4. Take one of the adsorption fixing components 4 as an example: the fixing component 4 is composed of a suction cup 41 and a first push rod 42, wherein the bottom end of the bottom plate 3 is provided with a first groove 31 with an opening downward and matching the size of the suction cup 41, the suction cup 41 is installed in the first groove 31, the bottom plate 3 is located above the first groove 31 and is provided with a first through hole 32 that penetrates the bottom plate 3 longitudinally and communicates with the first groove 31, the first push rod 42 is installed in the first through hole 32, It can move up and down in the first through hole 32, and the outer peripheral wall of the first end of the first push rod 42 is connected to the first push handle 43, and the second end of the first push rod 42 is connected to the suction cup 41. The first push handle 43 is pushed to drive the first push rod 42 to move and then drive the suction cup 41 to extend downward from the first groove 31, so that the suction cup 41 is fixed to the placement surface, and then the box body 1 is fixed on the placement surface, ensuring that under the impact of a certain external force, the box body 1 will not fall over due to a certain degree of external force, thereby enhancing the stability of the DNA extraction kit.

[0032] Reference Figures 1 to 3A second groove 421 of a certain depth is provided inside the second end portion of the first push rod 42 connected to the suction cup 41, the opening of the second groove 421 faces the suction cup 41, and the suction cup 41 has a notch of the same size as the opening of the second groove 421 at a position corresponding to the opening of the second groove 421, a second through hole 422 is provided inside the first push rod 42 above the second groove 421, the second through hole 422 runs through the entire first push rod 42 and is communicated with the second groove 421, the opening size of the second through hole 422 is larger than the opening size of the second groove 421, and the second push rod 44 passes through the second through hole 422 Inserted into the first push rod 42, the second push rod 44 can move up and down, and the length of the second push rod 44 is greater than the first push rod 42. The first end of the second push rod 44 is provided with a second push handle 45, and the outer peripheral side wall of the second end of the second push rod 44 is fixedly installed with a sealing ring 46. When the second push handle 45 is pushed, the second push rod 44 moves downward, and the sealing ring 46 on the second end of the second push rod 44 is inserted into the second groove 421, so that the outside air cannot enter the suction cup 41 from the inside of the first push rod 42, ensuring that the suction cup 41 will not fall off easily when it is fixed on the placement surface. When the second push rod 44 is lifted upward, the sealing ring 46 moves away from the second groove 421 and enters the second through hole 422. Since the opening size of the second through hole 422 is greater than the opening size of the second groove 421, air can enter the suction cup 41 from the inside of the first push rod 42, and the suction cup 41 can be separated from the placement surface, so that when taking the DNA extraction kit, the reverse force generated by the force applied to the suction cup 41 will not cause the DNA kit to be taken unstable.

[0033] An annular baffle 424 is fixedly provided on the inner peripheral wall of the second through hole 422 located at the first end of the first push rod 42, the inner peripheral wall of the baffle 424 is in contact with the outer peripheral wall of the second push rod 44, and the baffle 424 is made of ferrous metal material, and a magnetic block 441 is installed on the outer side wall of the second push rod 44 below the baffle 424. Because the magnetic block 441 is magnetic, it can be adsorbed on the baffle 424, so that when the suction cup 41 is removed from the placement surface, the sealing ring 46 will not fall into the second groove 421 when the suction cup 41 is not completely removed; a plurality of vent holes 4241 are opened on the baffle 424, such as Figure 3 As shown, the vent hole 4241 can ensure that air cannot enter the first push rod 42 due to the baffle 424, causing the suction cup 41 to be unable to detach.

[0034] Reference Figure 1A fixing piece 33 is fixed on the upper surface of the bottom plate 3 at the periphery of the first push rod 42, and the inner wall of the fixing piece 33 is provided with a first thread 331, and the outer peripheral side wall of the push rod 42 is provided with a second thread 423, and the first thread 331 matches the second thread 423. When the DNA extraction kit is placed on an uneven placement surface, the push handle 43 is rotated to drive the push rod 42 to rotate, and the suction cup 41 is driven to extend out of the first groove 31, so that the suction cup 41 is fixed to the placement surface. The height of the suction cup 41 extending downward is adjusted by using the thread to adjust the DNA extraction kit to keep it level, thereby further enhancing the stability of the DNA extraction kit and ensuring the safety of the reagent tube in the box body 1.

[0035] Reference Figure 1 , the box body 1 is also provided with a lifting assembly, wherein the two opposite inner side walls of the box body 1 are provided with third grooves 11, and the third grooves 11 are arranged vertically. The two sides of the placement box 5 are fixedly connected with screw sleeves 51 near the bottom, and the screw sleeves 51 are arranged vertically. Screws 61 are installed in the two third grooves 11, and the screw sleeves 51 are connected to the screws 61. The second end of the screw 61 is fixed to the bottom of the third groove 11 through a first rotating sleeve 62a, and the first end of the screw 61 passes through the box body 1 and is fixed to the box body 1 through a second rotating sleeve 62b, and the first end of the screw 61 extends upward and is connected with a knob 63. When in use, the knob 63 is rotated at the same time to rotate the screw 61, so that the two screw sleeves 51 drive the placement box 5 to move upward or downward, reduce the shaking of the reagent tube in the placement box 5, and improve the stability of the reagent tube; the box cover 2 is provided with a slot 21 adapted to the knob 63 at the position corresponding to the knob 63, so as to improve the tightness of the box cover 2 when it is closed.

[0036] Reference Figure 1 A placement groove is provided at the bottom of the box body 1, and the placement groove is arranged horizontally. A shock-absorbing material 12 is placed in the placement groove. The shock-absorbing material 12 can provide a buffer and protection for the bottom of the reagent tube, thereby reducing damage to the reagent tube.

[0037] The implementation principle of the utility model is:

[0038] When the reagent tube needs to be placed in the DNA extraction kit, the bottom plate 3 is first placed on the placement surface. At this time, the suction cup 41 is in the first groove 31. The first push handle 43 is used to drive the first push rod 42 to move downward, and the suction cup 41 is pushed out so that the suction cup 41 is adsorbed on the placement surface. At this time, the sealing ring 46 at the second end of the second push rod 44 should be in the second groove 421, and then the first push rod 42 is continued to be rotated to adjust the bottom plate 3 to maintain a stable state, and then the box cover 2 is opened, and the knob 63 is turned at the same time to lift the placement box 5 out of the box body 1, so that the operator can put the reagent tube into the placement box 5 and then turn the knob 63 to make the placement box 5 drop back into the box body 1, and then close the box cover 2, lift the second push rod 44 upwards respectively, so that the suction cup 41 falls off, and the DNA extraction kit can be taken away.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present technical content. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of this patent.

Claims

1. A DNA extraction kit with good stability, characterized in that: The invention comprises a box body (1), a box cover (2) connected to the top of the box body (1), and a bottom plate (3) fixed to the bottom of the box body (1); a plurality of adsorption fixing components (4) are arranged on the bottom plate (3) outside the box body (1); the adsorption fixing components (4) comprise a suction cup (41), a first push rod (42) and a second push rod (44); the suction cup (41) is connected to the first push rod (42); and the first push rod (42) is characterized in that: a second groove (421) is arranged at one end of the suction cup (41); and the first push rod (42) is provided with a second groove (421). A second through hole (422) is provided above the second groove (421) and communicates with the second groove (421). The opening size of the second through hole (422) is larger than the opening size of the second groove (421). The second push rod (44) is movably inserted into the first push rod (42) through the second through hole (422). A sealing ring (46) that fits with the second groove (421) is installed at one end of the second push rod (44) close to the suction cup (41). The suction cup (41) has a notch corresponding to the opening position of the second groove (421).

2. A DNA extraction kit with good stability according to claim 1, characterized in that: A first push handle (43) is provided on the outer peripheral wall of the first end of the first push rod (42), a second push handle (45) is provided on the first end of the second push rod (44), and the length of the first push rod (42) is shorter than that of the second push rod (44).

3. A DNA extraction kit with good stability according to claim 1, characterized in that: An annular baffle (424) is fixedly provided on the inner peripheral wall of the second through hole (422) located at the first end of the first push rod (42); the inner peripheral wall of the baffle (424) contacts the outer peripheral wall of the second push rod (44); the baffle (424) is made of ferrous metal material; and a magnetic block (441) is installed on the outer peripheral wall of the second push rod (44) located below the baffle (424).

4. A DNA extraction kit with good stability according to claim 1, characterized in that: The bottom end of the bottom plate (3) is provided with a first groove (31) opening downward and matching the size of the suction cup (41); the suction cup (41) is installed in the first groove (31); the bottom plate (3) is provided with a first through hole (32) extending longitudinally through the bottom plate (3) and communicating with the first groove (31) above the first groove (31); the first push rod (42) is installed in the first through hole (32); and the first push rod (42) can move up and down in the first through hole (32).

5. A DNA extraction kit with good stability according to claim 4, characterized in that: A fixing piece (33) is fixed on the upper surface of the bottom plate (3) at the periphery of the first push rod (42), the inner wall of the fixing piece (33) is provided with a first thread (331), and the outer peripheral side wall of the push rod (42) is provided with a second thread (423), and the first thread (331) matches the second thread (423).

6. A DNA extraction kit with good stability according to claim 1, characterized in that: The box body (1) is provided with a lifting assembly, which comprises a screw (61), a screw sleeve (51) and a knob (63). Two opposite inner side walls of the box body (1) are provided with third grooves (11). The third grooves (11) are arranged vertically. The screws (61) are installed in the two third grooves (11). The box body (1) is provided with a placement box (5). The two sides of the placement box (5) are fixedly connected with screw sleeves (51) near the bottom. The screw sleeves (51) are arranged vertically. The screw sleeves (51) are connected to the screw (61). The second end of the screw (61) is fixed to the bottom of the third groove (11) through a first rotating sleeve (62a). The first end of the screw (61) passes through the box body (1) and is connected to the box body (1) through a second rotating sleeve (62b). The first end of the screw (61) extends upward and is connected to the knob (63).

7. A DNA extraction kit with good stability according to claim 6, characterized in that: The box cover (2) is provided with a slot (21) adapted to the knob (63) at a position corresponding to the knob (63).

8. A DNA extraction kit with good stability according to claim 1, characterized in that: A placement groove is provided at the inner bottom end of the box body (1), the placement groove is arranged horizontally, and a shock absorbing material (12) is placed in the placement groove.

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