LU504897B1

LU504897B1 - A PCR sealing film with a strong sealability

Info

Publication number: LU504897B1
Application number: LU504897A
Authority: LU
Inventors: Hua Zhao; Zide Liu; Yiyong Yuan; Zixian Liu; Gang Liu; Bo Tang
Original assignee: Meidong Huicheng Life Tech Kunshan Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-12

Abstract

The invention provides a PCR sealing film with a strong sealability related to the technical field of experimental equipment, comprising a bearing plate; a sealing film main body is provided on the lower surface of the bearing plate, and a mounting housing is fixedly provided on the upper surface of the bearing plate. An adjustment mechanism is provided at the center of the upper surface of the mounting housing, and an inner partition plate is provided inside the mounting housing. A first limit mechanism is provided in the interior of the mounting housing and is located above the inner partition plate, and a second limit mechanism is provided in the interior of the mounting housing and is located below the inner partition plate. The invention allows the press lever to push the second connecting rod to move, through the cooperation between the first fixture blocks and the clamping grooves.

Description

DESCRIPTION

A PCR SEALING FILM WITH A STRONG SEALABILITY

TECHNICAL FIELD

The invention relates to the technical field of laboratory equipment, in particular to a

PCR sealing film with a strong sealability.

BACKGROUND

PCR plates are applied to place some specific experimental reagents, and PCR plates need to be sealed by sealing films during transportation and storage. For instance, the patent with application No. 202022266520.0 provides a sealing film for PCR plates, which comprises a polymer sheet. The polymer sheet is provided with a number of convex columns penetrating up and down, and the openings of the convex columns penetrate through the polymer sheet. The polymer sheet is provided with a transparent polymer film made of transparent material on the side of the polymer sheet away from the convex columns. The above technical solution can reduce the plate’s contamination caused by the sealing film’s adhesive, with better UV transmission rate and heat resistance; the structure is simple without the arrangement of a highly complicated connection structure.

However, the sealing film of the PCR plate has poor sealability by adopting the above technical solution, leading to contamination and damage of the experimental reagents in the PCR plate by external factors, thus affecting the accuracy of the experimental results. In addition, it is easy to produce position deviation when filming,

which is inconvenient to use. Therefore, the invention provides a PCR sealing film with strong sealability.

SUMMARY OF THE INVENTION

To address the shortcomings of the prior art, the invention provides a PCR sealing film with strong sealability, which solves the problems of contamination and damage of the experimental reagents in the PCR plate by external factors and the effect of the accuracy of the experimental results.

To achieve the above objects, the technical solution adopted in the invention is as follows:

A PCR sealing film with strong sealability comprises a bearing plate, the lower surface of the bearing plate is provided with a sealing film main body, and the lower surface of the sealing film main body is provided in even distribution with a number of sealing covers; each of the sealing covers is provided with a sealing column on the lower surface, and each of the sealing columns is provided with a guide limit ring at the bottom; the upper surface of the bearing plate is fixedly provided with a mounting housing, and the upper surface of the mounting housing is provided with an adjustment mechanism at the center; the mounting housing is provided inside the inner partition plate, a first limit mechanism is provided in the interior of the mounting housing and is located above the inner partition plate, and a second limit mechanism is provided in the interior of the mounting housing and is located below the inner partition plate.

Preferably, the adjustment mechanism comprises a press lever and moving mounting blocks, the press lever is movably provided at the center of the upper surface of the mounting housing, and the moving mounting blocks are fixedly provided with mounting sliding blocks.

Preferably, the mounting sliding blocks are slidingly provided in the limit sliding grooves; the moving mounting blocks are provided with auxiliary push rods on the surface of both ends; the moving mounting blocks are fixedly provided with limit rods on the surface of the side of the moving mounting blocks near the press lever.

Preferably, the press lever is evenly distributed with a number of limit holes, limit plates are provided on the upper surface of the mounting housing and located on the side away from the moving mounting blocks, and the press lever is provided in the one end of the mounting housing, and the first fixture block is fixed provided on the surface.

Preferably, the surface of the press lever is fixedly provided with a first mounting plate on one side inside the mounting housing, the first spring is provided on the lower surface of the first mounting plate, and the other end of the first spring is fixedly provided on the upper surface of the inner partition plate.

Preferably, the first limit mechanism comprises a first connecting plate and second mounting plates; the first connecting plate is fixedly provided on the surface of both ends of the press lever and located inside the mounting housing, and the second mounting plate is fixedly mounted on the surface of one end of the first connecting plate away from the press lever.

Preferably, the second mounting plate is fixedly provided with first connecting rods on both sides of the lower surface, and the other end of each the first connecting rod runs through the inner partition plate and is fixedly provided with second fixture blocks at the end, and the second fixture blocks are provided with first guides on both sides of the bottom.

Preferably, the upper surface of the bearing plate is evenly distributed with four mounting grooves, and each mounting groove is fixed and provided with a second spring on the inner wall of both ends; each second spring is fixedly provided with a limit clamping plate on the other end, limit clamping plates are provided with second guides on the top side, and the limit clamping plates are provided below the second fixture blocks.

Preferably, the second limiting mechanism comprises a second connecting rod and clamping grooves; the second connecting rod is movably provided at the center of the inner partition plate, and the second connecting rod is provided with clamping grooves on the top surface; the second connecting rod is fixedly provided with a second connecting plate at the end and located below the inner partition plate, and the second connecting plate is provided with a number of third springs evenly distributed on the upper surface; the third springs are fixedly provided on the lower surface of the inner partition plate at the other end.

Preferably, the second connecting plate is fixedly provided with limit baffles at the end of the second connecting rod away from the second connecting rod, and the limit baffles are provided with the end limit block at the bottom side; the limit baffles are provided on a mounting limit groove, and the mounting limit groove is provided inside the bearing plate and is located on the outside of the sealing film main body.

Compared to the prior arts, the invention has the following beneficial effects: 1. The invention allows the press lever to push the second connecting rod to move, through the cooperation between the first fixture blocks and the clamping grooves, to further allow the limit baffles in the mounting limit groove to move downward, to realize the sealing of the sealing film main body and the surrounding of the CR plate by the limit baffles. By means of the end limit block provided at the bottom of the limit baffles, the invention achieves a better fit between the limit baffles and the sealing film main body,

obtains a better sealing effect of the sealing film main body, and makes the inside of the

PCR plate less susceptible to contamination by external factors for the more accurate testing results. 2. The first connecting plate on both sides of the lever will be driven to move during the downward movement of the press lever. Under the action of the first connecting rods, the second fixture blocks can cooperate with the mounting slot, and two limit clamping plates are provided in the mounting grooves by the second springs, so that the two limit clamping plates can tighten and limit the position of the second fixture blocks. The invention achieves a better fitting effect between the sealing film main body and the PCR board for a more convenient application instead of producing significant position deviation in the fitting process.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram showing the overall structure of a PCR sealing film with a strong sealability provided by the invention.

FIG. 2 is a schematic diagram showing the specific structure of the sealing film main body of a PCR sealing film with a strong sealability provided by the invention.

FIG. 3 is a schematic diagram showing another angle structure of the sealing film main body of a PCR sealing film with a strong sealability provided by the invention.

FIG. 4 is a schematic diagram showing an enlarged view at A in FIG. 1 of a PCR sealing film with a strong sealability provided by the invention.

FIG. 5 is a schematic diagram showing an enlarged view at B in FIG. 3 showing a

PCR sealing film with a strong sealability provided by the invention.

FIG. 6 is a schematic diagram showing a front view of a PCR sealing film with a strong sealability provided by the invention.

FIG. 7 is a schematic diagram showing a cross-sectional view at C-C in FIG. 6 of a

PCR sealing film with a strong sealability provided by the invention.

FIG. 8 is a schematic diagram showing a cross-sectional view at D-D in FIG. 6 of a

PCR sealing film with a strong sealability provided by the invention.

FIG. 9 is a schematic diagram showing a cross-sectional view at E-E of a PCR sealing film with a strong sealability provided by the invention.

FIG. 10 is a schematic diagram showing an enlarged view at F in FIG. 8 of a PCR sealing film with a strong sealability provided by the invention.

In the figures, 1. the bearing plate; 2. the sealing film main body; 201. the sealing covers; 202. the sealing columns; 203. the guide limit rings; 3. the mounting housing; 4. the adjustment mechanism; 401. the press lever; 402. the moving mounting blocks; 403. the mounting sliding blocks; 404. the limit sliding grooves; 405. the auxiliary push rods; 406. the limit rods; 407. the limit holes; 408. the limit plates; 409. the first fixture block; 410. the first mounting plate; 411. the first spring; 5. the inner partition plate; 6. the first limit mechanism; 601. the first connecting plate; 602. the second mounting plates; 603. the first connecting rods; 604. the second fixture blocks; 605. the first guides; 606. the mounting grooves; 607. the second springs; 608. the limit clamping plates; 609. the second guides; 7. the second limiting mechanism; 701. the second connecting rod; 702. the clamping grooves; 703. the second connecting plate; 704. the third springs; 705. the limit baffles; 706. the end limit block; 707. the mounting limit groove.

DESCRIPTION OF EMBODIMENTS

To make the technical solutions provided by the unity model more comprehensible, exemplary embodiments according to the application are described below in detail with reference to the accompanying drawings. Apparently, the described embodiments are merely some embodiments of the application rather than all the embodiments of the application. It should be understood that the application is not limited to the exemplary embodiments described herein. Based on the embodiments in the invention, all other embodiments obtained by those of ordinary skill in the art without making creative labor shall fall within the scope of protection of the invention.

Embodiment 1

Referring to FIG. 1-10, a PCR sealing film with a strong sealability comprises a bearing plate 1, the lower surface of the bearing plate 1 is provided with a sealing film main body 2, and the lower surface of the sealing film main body 2 is provided in even distribution with a number of sealing covers 201; each of the sealing covers 201 is provided with a sealing column 202 on the lower surface, and each of the sealing columns 202 is provided with an guide limit ring 203 at the bottom; the upper surface of the bearing plate 1 is fixedly provided with a mounting housing 3, and the upper surface of the mounting housing 3 is provided with an adjustment mechanism 4 at the center; the mounting housing 3 is provided inside the inner partition plate 5, a first limit mechanism 6 is provided in the interior of the mounting housing 3 and is located above the inner partition plate 5, and a second limit mechanism 7 is provided in the interior of the mounting housing 3 and is located below the inner partition plate 5.

In the embodiment, the adjustment mechanism 4 comprises a press lever 401 and moving mounting blocks 402, the press lever 401 is movably provided at the center of the upper surface of the mounting housing 3, and the moving mounting blocks 402 are fixedly provided with mounting sliding blocks 403. The mounting sliding blocks 403 are slidingly provided in the limit sliding grooves 404, the moving mounting blocks 402 are provided with auxiliary push rods 405 on the surface of both ends, the moving mounting blocks 402 are fixedly provided with limit rods 406 on the surface of the side of the moving mounting blocks 402 near the press lever 401. The moving mounting blocks 402 are slidingly provided with the mounting sliding blocks 403 in the limit grooves 404, realizing the limit rods 406 are more convenient for adjustment.

It is significant to illustrate that the press lever 401 is evenly distributed with a number of limit holes 407, limit plates 408 are provided on the upper surface of the mounting housing 3 and located on the side away from the moving mounting blocks 402, and the press lever 401 is provided in the one end of the mounting housing 3 and the first fixture block is fixed provided on the surface. By providing the limit plates 408, the position of the limit rods 406 can be limited when limit rods 406 passes through the limit holes 407, allowing the position of the limit bar 406 to be less likely to change and enabling the press bar 401 to be fixed better.

In the specific setting, the surface of the press lever 401 is fixedly provided with a first mounting plate 410 on one side inside the mounting housing 3, the first spring 411 is provided on the lower surface of the first mounting plate 410, and the other end of the first spring 411 is fixedly provided on the upper surface of the inner partition plate 5. With the elastic action of the first spring 411, the reset of the press lever 401 after pressing can be completed to achieve a more convenient application.

The first limit mechanism 6 comprises a first connecting plate 601 and second mounting plates 602; the first connecting plate 601 is fixedly provided on the surface of both ends of the press lever 401 and located inside the mounting housing 3, the second mounting plate 602 is fixedly mounted on the surface of one end of the first connecting plate 601 away from the press lever 401. The second mounting plate 602 is fixedly provided with first connecting rods 603 on both sides of the lower surface, and the other end of each the first connecting rod 603 runs through the inner partition plate 5 and is fixedly provided with second fixture blocks 604 at the end, and the second fixture blocks 604 are provided with first guides 605 on both sides of the bottom.

The upper surface of the bearing plate 1 is evenly distributed with four mounting grooves 606, and each mounting groove 606 is fixed and provided with a second spring 607 on the inner wall of both ends; each second spring 607 is fixedly provided with a limit clamping plate 608 on the other end, limit clamping plates 608 are provided with second guides 609 on the top side, and the limit clamping plates 608 are provided below the second fixture blocks 604. Movement of the position of the first connecting plate 601 will drive the first connecting rod 603 to move so that the second fixture blocks 604 can be fit into the mounting groove s 606. Two limit clamping plates 608 are provided in the mounting grooves 606 by the second springs 607, so that the two limit clamping plates 608 can tighten and limit the position of the second fixture blocks 604. The invention achieves a better fitting effect between the sealing film main body 2 and the PCR board for a more convenient application instead of producing significant position deviation in the fitting process.

It is significant to illustrate that the second limiting mechanism 7 comprises a second connecting rod 701 and clamping grooves 702; the second connecting rod 701 is movably provided at the center of the inner partition plate 5, and the second connecting rod 701 is provided with clamping grooves 702 on the top surface; the second connecting rod 701 is fixedly provided with a second connecting plate 703 at the end and located below the inner partition plate 5, and the second connecting plate 703 is provided with a number of third springs 704 evenly distributed on the upper surface; the third springs 704 are fixedly provided on the lower surface of the inner partition plate 5 at the other end. The second connecting plate 703 is fixedly provided with limit baffles 705 at the end of the second connecting rod 701 away from the second connecting rod, and the limit baffles 705 are provided with the end limit block 706 at the bottom side; the limit baffles 705 is provided in a mounting limit groove 707, and the mounting limit groove 707 is provided inside the bearing plate 1 and is located on the outside of the sealing film main body 2. The embodiment allows the press lever 401 to push the second connecting rod 701 to move, through the cooperation between the first fixture blocks 409 and the clamping grooves 702, to allow the limit baffles 705 to move downward, and to realize the sealing of the sealing film main body 2 and the surrounding of the CR plate. By means of the end limit block 706 provided at the bottom of the limit baffles 705, the embodiment achieves a better fit between the limit baffles 705 and the sealing film main body 2 and obtains a better sealing effect of the sealing film main body.

The principle of operation of a PCR sealing film with a strong sealability is as follows:

During the process of operation, the sealing film main body 2 is encapsulated on the

PCR plate, and each hole on the PCR plate can be sealed individually by providing several sealing columns 202. The size of the guide limit rings 203 is slightly larger than the size of the sealing columns 202, which can make the sealing columns 202 less likely to pop out when receiving external force. Sealing covers 201 are provided at the upper end of each sealing columns 202, which can improve the sealing effect. When the encapsulation of the sealing plate film body 2 is completed, by pressing the press lever 401 downward, the first fixture block 409 and the clamping grooves 702 can be cooperated, which in turn can cause the press lever 401 to push the second connecting rod 701 downward. The downward movement of the second connecting rod 701 will cause the second connecting plate 703 to move downward, which in turn will lead the limit baffles 705 in the mounting limit groove 707 to move downward, to realize the sealing of the sealing film main body 2 and the surrounding of the CR plate by the limit baffles 705. By means of the end limit block 706 provided at the bottom of the limit baffles 705, the invention achieves a better fit between the limit baffles 705 and the sealing film main body 2, obtains the better sealing effect of the sealing film main body 2, and makes the inside of the PCR plate less susceptible to contamination by external factors for the more accurate testing results.

The downward movement of the press lever 401 also drives the first connecting plate 601 on both sides to move, and the first connecting rods 603 provided on the lower surface of the second mounting plates 602 can be moved, so that the second fixture blocks 604 at the bottom of the first connecting rods 603 can cooperate with the mounting grooves 606. With the elasticity of the spring, the two limit clamping plates 608 can tighten and limit the position of the second fixture blocks 604, so that the sealing film main body 2 and the PCR plate can be fitted better without deviation during the fitting process, which is more convenient for application. When the press lever 401 is pressed to the designated position, the auxiliary push rods 405 pushes the moving mounting blocks 402 to move, so that the limiting rods 406 pass through the designated limit holes 407 on the press lever 401; thus the position of the press lever 401 can be limited and fixed, so that the first limit mechanism 6 and the second limit mechanism 7 can limit the position of the sealing film main body 2 more firmly to improve the sealing effect of the sealing film main body 2.

The basic principles, main characteristics and advantages of the invention are described hereinabove. It should be understood by those skilled in the art that the description of the above embodiments is not restrictive, and what is shown in the embodiments and specification is only one of the embodiments and principles of the invention, and the actual structure is not limited thereto. In summary, various modifications and improvements based on the technical solution without departing from the inventive purpose of the invention made by inspired ordinary technicians in the art without creative efforts shall all fall within the protection scope of the invention. It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

Claims

1. A PCR sealing film with a strong sealability, wherein comprises a bearing plate (1), the lower surface of the bearing plate (1) is provided with a sealing film main body (2), and the lower surface of the sealing film main body (2) is provided in even distribution with a number of sealing covers (201); each of the sealing covers (201) is provided with a sealing column (202) on the lower surface, and each of the sealing columns (202) is provided with an guide limit ring (203) at the bottom; the upper surface of the bearing plate (1) is fixedly provided with a mounting housing (3), and the upper surface of the mounting housing (3) is provided with an adjustment mechanism (4) at the center; the mounting housing (3) is provided inside the inner partition plate (5), a first limit mechanism (6) is provided in the interior of the mounting housing (3) and is located above the inner partition plate (5), and a second limit mechanism (7) is provided in the interior of the mounting housing (3) and is located below the inner partition plate (5).

2. A PCR sealing film with a strong sealability according to claim 1, wherein the adjustment mechanism (4) comprises a press lever (401) and moving mounting blocks (402), the press lever (401) is movably provided at the center of the upper surface of the mounting housing (3), and the moving mounting blocks (402) are fixedly provided with mounting sliding blocks (403).

3. A PCR sealing film with a strong sealability according to claim 2, wherein the mounting sliding blocks (403) are slidingly provided in the limit sliding grooves (404), the moving mounting blocks (402) are provided with auxiliary push rods (405) on the surface of both ends, the moving mounting blocks (402) are fixedly provided with limit rods (406) on the surface of the side of the moving mounting blocks (402) near the press lever (401).

4. A PCR sealing film with a strong sealability according to claim 3, wherein the press lever (401) is evenly distributed with a number of limit holes (407), limit plates (408) are provided on the upper surface of the mounting housing (3) and located on the side away from the moving mounting blocks (402), and the press lever (401) is provided in the one end of the mounting housing (3), and the first fixture block is fixed provided on the surface.

5. A PCR sealing film with a strong sealability according to claim 4, wherein the surface of the press lever (401) is fixedly provided with a first mounting plate (410) on one side inside the mounting housing (3), the first spring (411) is provided on the lower surface of the first mounting plate (410), and the other end of the first spring (411) is fixedly provided on the upper surface of the inner partition plate (5).

6. A PCR sealing film with a strong sealability according to claim 2, wherein the first limit mechanism (6) comprises a first connecting plate (601) and second mounting plates (602), the first connecting plate (601) is fixedly provided on the surface of both ends of the press lever (401) and located inside the mounting housing (3), the second mounting plate (602) is fixedly mounted on the surface of one end of the first connecting plate (601) away from the press lever (401).

7. A PCR sealing film with a strong sealability according to claim 6, wherein the second mounting plate (602) is fixedly provided with first connecting rods (603) on both sides of the lower surface, and the other end of each the first connecting rod (603) runs through the inner partition plate (5) and is fixedly provided with second fixture blocks (604) at the end, and the second fixture blocks (604) are provided with first guides (605) on both sides of the bottom.

8. A PCR sealing film with a strong sealability according to claim 2, wherein the upper surface of the bearing plate (1) is evenly distributed with four mounting grooves (606), and each mounting groove (606) is fixed provided with a second spring (607) on the inner wall of both ends; each second spring (607) is fixedly provided with a limit clamping plate (608) on the other end, limit clamping plates (608) are provided with second guides (609) on the top side, and the limit clamping plates (608) are provided below the second fixture blocks (604).

9. A PCR sealing film with a strong sealability according to claim 2, wherein the second limiting mechanism (7) comprises a second connecting rod (701) and clamping grooves (702); the second connecting rod (701) is movably provided at the center of the inner partition plate (5), and the second connecting rod (701) is provided with clamping grooves (702) on the top surface; the second connecting rod (701) is fixedly provided with a second connecting plate (703) at the end and located below the inner partition plate (5), and the second connecting plate (703) is provided with a number of third springs (704) evenly distributed on the upper surface; the third springs (704) are fixedly provided on the lower surface of the inner partition plate (5) at the other end.

10. A PCR sealing film with a strong sealability according to claim 2, wherein the second connecting plate (703) is fixedly provided with limit baffles (705) at the end of the second connecting rod (701) away from the second connecting rod, and the limit baffles (705) are provided with the end limit block (706) at the bottom side; the limit baffles (705) is provided in a mounting limit groove (707), and the mounting limit groove (707) is provided inside the bearing plate (1) and is located on the outside of the sealing film main body (2).