CN106929390B

CN106929390B - Mounting disc and automatic cover closing mechanism

Info

Publication number: CN106929390B
Application number: CN201710211270.0A
Authority: CN
Inventors: 刘银安; 刘光辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-01
Filing date: 2017-04-01
Publication date: 2020-07-03
Anticipated expiration: 2037-04-01
Also published as: CN106929390A

Abstract

The invention provides an installation disc and an automatic cover closing mechanism, belonging to the field of experimental instruments, wherein the installation disc comprises a disc body and a plurality of positioning parts, the disc body is provided with a plurality of through holes, the plurality of through holes are arranged at intervals along the circumferential direction of the disc body, the plurality of positioning parts are arranged at intervals along the circumferential direction of the disc body, the number of the positioning parts is the same as that of the through holes, and the positioning parts are positioned between two adjacent through holes; the automatic cover closing mechanism comprises a driving mechanism, a cover closing device and a mounting disc, wherein the cover closing device is used for mounting the PCR tube (or centrifugal tube), the mounting disc rotates along the axis under the driving of the driving mechanism, and the cover closing device closes the PCR tube (or centrifugal tube) in a rotating mode. The installation disc provided by the invention is provided with the plurality of positioning parts around the disc body, the adjacent positioning parts are used for positioning the PCR tube (or the centrifugal tube), and meanwhile, the positioning parts have small volume and light weight relative to the disc body, so that the movement of the installation disc is not influenced, and the installation disc can be flexibly driven.

Description

Mounting disc and automatic cover closing mechanism

Technical Field

The invention relates to the field of experimental instruments, in particular to an installation disc and an automatic cover closing mechanism.

Background

Biological macromolecular compounds, in which nucleic acids are polymerized from many nucleotides, are one of the most basic substances of life. Nucleic acid is widely present in all animal and plant cells and microorganisms, and nucleic acid in organisms is often combined with protein to form nucleoprotein. Different nucleic acids differ in their chemical composition, nucleotide arrangement order, and the like. At present, in a nucleic acid detection experiment, reaction liquid needs to be pre-installed in a PCR tube or a deep-hole plate, and the addition of the reaction liquid into the PCR tube and the sealing of a cover are mostly carried out manually.

The inventor finds in research that the existing liquid injection device has at least the following disadvantages: the existing liquid injection device is very heavy, complex to operate during liquid injection, and cannot effectively position the PCR tube.

Disclosure of Invention

The invention aims to provide a mounting plate to solve the problems that the existing liquid injection device is very heavy and cannot effectively position a PCR tube.

The invention aims to provide an automatic cover closing mechanism to solve the problems that an existing liquid injection device is very heavy and cannot effectively position a PCR (polymerase chain reaction) tube.

The invention is realized by the following steps:

based on the first purpose, the invention provides an installation disc, which comprises a disc body and a plurality of positioning parts, wherein the disc body is provided with a plurality of through holes, the axis of each through hole is parallel to the axis of the disc body, the through holes are arranged at intervals along the circumferential direction of the disc body, the positioning parts are positioned at the edge position of the disc body, the positioning parts are arranged at intervals along the circumferential direction of the disc body, the number of the positioning parts is the same as that of the through holes, and the positioning parts are positioned between two adjacent through holes.

The installation disc provided by the invention is provided with the plurality of positioning parts around the disc body, one part of the PCR tube (or the centrifugal tube) can be arranged between the adjacent positioning parts, the adjacent positioning parts are used for positioning the PCR tube (or the centrifugal tube), and the PCR tube (or the centrifugal tube) can be effectively positioned.

Further, the dish body sets up first recess, first recess is followed the circumference of dish body is the annular, the through-hole with the tank bottom intercommunication of first recess.

Can make the installation of PCR pipe (or centrifuging tube) more convenient after setting up first recess, and can alleviate the weight of dish body, make the dish body become more nimble.

Further, the dish body is provided with a second groove, the second groove is located the first groove is kept away from one side at the center of the dish body, the second groove with first groove intercommunication, the second groove sets up to a plurality ofly, a plurality ofly the second groove sets up along the circumference interval of dish body, adjacent the second groove forms location portion.

The tank bottom of second recess and the tank bottom of first recess are located the coplanar, and the setting of second recess can form location portion, makes location portion need not additional material, because location portion and second recess are located the outside of dish body, consequently can not cause the influence to the structural strength of dish body.

Further, the second groove extends along the radial direction of the disc body, and the second groove passes through the axis line of the through hole.

This is more convenient when installing the PCR tube (or centrifuge tube).

Furthermore, the diameter of the circle where the positioning parts are located is larger than that of the circle where the through holes are located.

First recess just can cover the through-hole completely like this, makes the body installation of PCR pipe (or centrifuging tube) more convenient, and more firm after having installed, can make the volume of location portion less simultaneously, but longer, the distance between adjacent location portion just can be less a bit like this, can be better fix a position PCR pipe (or centrifuging tube).

Furthermore, the positioning part is arc-shaped, and an extension line of a side of the positioning part close to the circle center of the disc body is tangent to the through hole.

This allows the positioning block to have a sufficient thickness to hold the PCR tube (or centrifuge tube) more securely.

Furthermore, the positioning part is provided with an inclined plane, the inclined plane is positioned on one side of the positioning part, which is far away from the center of the disc body, and the inclined plane is inclined inwards along the direction of the positioning part, which is far away from the center of the disc body.

Therefore, the PCR tube (or the centrifuge tube) can be more conveniently and smoothly closed.

Based on the second purpose, the invention further provides an automatic cover closing mechanism, which comprises a driving mechanism, a cover closing device and the mounting disc, wherein the mounting disc is mounted at the output end of the driving mechanism, the mounting disc is driven by the driving mechanism to rotate along the axis of the mounting disc, the mounting disc is used for mounting a PCR tube (or a centrifugal tube), and the cover closing device closes the PCR tube (or the centrifugal tube) in a rotating manner.

The installation disc of the automatic cover closing mechanism provided by the invention is provided with the plurality of positioning parts around the disc body, one part of the PCR tube (or the centrifugal tube) can be arranged between the adjacent positioning parts, and the adjacent positioning parts are used for positioning the PCR tube (or the centrifugal tube), so that the PCR tube (or the centrifugal tube) can be effectively positioned.

Further, the mounting disc passes through the bolt and is connected drive mechanism's output, the bolt sets up to two, two the bolt is located the same diameter of mounting disc.

The cross section of the output end of the driving mechanism of the existing liquid injection device is generally set to be polygonal to drive the mounting disc, but the control is not accurate enough when the mounting disc is controlled by the mode, the liquid injection device needs the mounting disc to reach the accurate position to complete smooth production when automatic filling and sealing is completed, and the mounting disc can be more accurate when the mounting disc is positioned in a rotating mode by using two bolt connections.

Further, the PCR tube comprises a tube body, a connecting piece and a cover, the tube body is installed in the through hole, the cover is connected with the tube body through the connecting piece, the connecting piece is located between the adjacent positioning portions, and the cover is located above the output end of the cover closing device.

The connecting piece of PCR pipe can directly block between two adjacent location portions, and the PCR pipe is prevented from rotating when the cover is closed to the PCR pipe.

Compared with the prior art, the invention has the following beneficial effects:

the installation disc provided by the invention is provided with the plurality of positioning parts around the disc body, one part of the PCR tube can be installed between the adjacent positioning parts, and the adjacent positioning parts are used for positioning the PCR tube, so that the PCR tube can be effectively positioned.

Drawings

Fig. 1 shows a schematic view of a mounting plate provided in embodiment 1 of the present invention;

fig. 2 shows a cross-sectional view of a mounting plate provided in embodiment 1 of the present invention;

fig. 3 shows a cross-sectional view of a mounting plate provided in embodiment 2 of the present invention;

fig. 4 is a schematic view showing a first state of the automatic lid closing mechanism provided in embodiment 3 of the present invention;

fig. 5 is a schematic diagram showing a second state of the automatic lid closing mechanism provided in embodiment 3 of the present invention.

In the figure: 101-a disc body; 102-a through hole; 103-a positioning section; 104-a first groove; 105-a second groove; 106-inclined plane; 107-closing the cover mechanism; 108-a tubular body; 109-a connector; 110-a lid; 111-PCR tube.

Detailed Description

Biological macromolecular compounds, in which nucleic acids are polymerized from many nucleotides, are one of the most basic substances of life. Nucleic acid is widely present in all animal and plant cells and microorganisms, and nucleic acid in organisms is often combined with protein to form nucleoprotein. Different nucleic acids differ in their chemical composition, nucleotide arrangement order, and the like. At present, in a nucleic acid detection experiment, reaction liquid needs to be pre-installed in a PCR tube or a deep-hole plate, and the addition of the reaction liquid into the PCR tube and the sealing of a cover are mostly carried out manually. The inventor finds in research that the existing liquid injection device has at least the following disadvantages: the existing liquid injection device is very heavy, complex to operate during liquid injection, and cannot effectively position the PCR tube.

In order to improve the above problem, the present invention provides an installation disk, including a disk body and a plurality of positioning portions, wherein the disk body is provided with a plurality of through holes, an axis of each through hole is parallel to an axis of the disk body, the plurality of through holes are arranged at intervals along a circumferential direction of the disk body, the positioning portions are located at edge positions of the disk body, the plurality of positioning portions are arranged at intervals along the circumferential direction of the disk body, the number of the positioning portions is the same as the number of the through holes, and the positioning portions are located between two adjacent through holes.

The invention also provides an automatic cover closing mechanism which comprises a driving mechanism, a cover closing device and the mounting disc, wherein the mounting disc is mounted at the output end of the driving mechanism, the mounting disc is driven by the driving mechanism to rotate along the axial lead of the mounting disc, the mounting disc is used for mounting the PCR tube, and the cover closing device closes the PCR tube in a rotating mode.

The installation disc of the automatic cover closing mechanism provided by the invention is provided with the plurality of positioning parts around the disc body, one part of the PCR tube can be arranged between the adjacent positioning parts, and the adjacent positioning parts are used for positioning the PCR tube, so that the PCR tube can be effectively positioned.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described above with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the above detailed description of the embodiments of the invention presented in the drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a mounting disk, including a disk body 101 and a plurality of positioning portions 103, where the disk body 101 is provided with a plurality of through holes 102, an axial line of the through hole 102 is parallel to an axial line of the disk body 101, the plurality of through holes 102 are arranged at intervals in a circumferential direction of the disk body 101, the positioning portions 103 are located at edge positions of the disk body 101, the plurality of positioning portions 103 are arranged at intervals in the circumferential direction of the disk body 101, a number of portions of the positioning portions 103 is the same as a number of the through holes 102, and the positioning portions 103 are located between two adjacent through holes 102.

The mounting disc that this embodiment provided sets up a plurality of location portions 103 around body of a plate 101, a part of PCR pipe 111 (or centrifuging tube) can be installed between adjacent location portion 103, fix a position PCR pipe 111 (or centrifuging tube) by adjacent location portion 103, can effectually fix a position PCR pipe 111 (or centrifuging tube), and simultaneously, this kind of mounting disc is owing to only set up some location portions 103 on body of a plate 101, and location portion 103 is for the small, light in weight of body of a plate 101, consequently can not cause the influence to the activity of mounting disc, make the mounting disc can be driven in a flexible way.

The disk body 101 is provided with a first groove 104, the first groove 104 is annular along the circumferential direction of the disk body 101, and the through hole 102 is communicated with the bottom of the first groove 104. After the first groove 104 is arranged, the installation of the PCR tube 111 (or a centrifugal tube) is more convenient, the weight of the disk body 101 can be reduced, and the disk body 101 is more flexible.

The disk body 101 is provided with a second groove 105, the second groove 105 is located one side of the first groove 104 far away from the center of the disk body 101, the second groove 105 is communicated with the first groove 104, the second groove 105 is provided in a plurality, the plurality of second grooves 105 are arranged at intervals along the circumferential direction of the disk body 101, and the adjacent second grooves 105 form the positioning portion 103. The groove bottom of the second groove 105 and the groove bottom of the first groove 104 are located in the same plane, the positioning portion 103 can be formed by the second groove 105, additional materials are not needed for the positioning portion 103, and the positioning portion 103 and the second groove 105 are located on the outer side of the disc body 101, so that the structural strength of the disc body 101 cannot be affected.

The second groove 105 extends in the radial direction of the disc body 101, and the second groove 105 passes through the axial center line of the through hole 102. This is more convenient when installing the PCR tube 111 (or centrifuge tube).

The diameter of the circle in which the plurality of positioning portions 103 are located is larger than the diameter of the circle in which the plurality of through holes 102 are located. First recess 104 just can cover through-hole 102 completely like this, makes the body 108 installation of PCR pipe 111 (or centrifuging tube) more convenient, and more firm after having installed, can make the volume of location portion 103 less simultaneously, but longer, and the distance between the adjacent location portion 103 just can be less a bit like this, can be better fix a position PCR pipe 111 (or centrifuging tube).

One of the preferred embodiments is to set the thickness of the disc body 101 to 4 mm, the diameter to 155 mm, the diameter of the through holes 102 to 6.4 mm, the number of the through holes 102 to 50, the center of the through holes 102 located on a circle with a diameter of 143.2 mm, the number of the positioning portions 103 correspondingly set to 50, the distance between adjacent positioning portions 103 is 3 mm, the positioning portions 103 located on a circle with a diameter of 151 mm, the depth of the depression of the first groove 104 is 1.2 mm, and the diameter of the protrusion surrounded by the first groove 104 after the disc body 101 is provided with the first groove 104 is 120 mm.

Example 2

Referring to fig. 3, the present embodiment also provides a mounting plate, and the present embodiment is a further improvement on the technical solution of embodiment 1, and the technical solution described in embodiment 1 is also applicable to the present embodiment, and the technical solution disclosed in embodiment 1 is not described repeatedly.

Specifically, the present embodiment is different from embodiment 1 in that the positioning portion 103 of the mounting disk provided in the present embodiment is arc-shaped, and an extension line of a side of the positioning portion 103 close to the center of the disk body 101 is tangent to the through hole 102. This allows the positioning block to have a sufficient thickness to hold the PCR tube 111 (or centrifuge tube) more securely.

The positioning portion 103 is provided with a slope 106, the slope 106 being located on a side of the positioning portion 103 away from the center of the disc body 101, the slope 106 being inclined inward in a direction in which the positioning portion 103 is away from the center of the disc body 101. This can make PCR tube 111 (or centrifuging tube) more convenient and smooth when closing the lid.

Example 3

Referring to fig. 4 and 5, the embodiment provides an automatic lid closing mechanism, which includes a driving mechanism, a lid closing device 107 and a mounting disc as above, the mounting disc is mounted at an output end of the driving mechanism, the mounting disc is driven by the driving mechanism to rotate along an axial line of the mounting disc, the mounting disc is used for mounting a PCR tube 111 (or a centrifugal tube), and the lid closing device 107 closes the PCR tube 111 (or the centrifugal tube) in a rotating manner.

The installation disc of priming device that this embodiment provided sets up a plurality of location portions 103 around body of a plate 101, PCR pipe 111 (or centrifuging tube) partly can be installed between adjacent location portion 103, fix a position PCR pipe 111 (or centrifuging tube) by adjacent location portion 103, can effectually fix a position PCR pipe 111 (or centrifuging tube), and simultaneously, this kind of installation disc is owing to only set up some location portions 103 on body of a plate 101, and location portion 103 is for the small of body of a plate 101, and is light in weight, consequently can not cause the influence to the activity of installation disc, make the installation disc can be driven in a flexible way.

The mounting disc passes through the bolt to be connected with actuating mechanism's output, and the bolt sets up to two, and two bolts are located the same diameter of mounting disc. The cross section of the output end of the driving mechanism of the existing liquid injection device is generally set to be polygonal to drive the mounting disc, but the control is not accurate enough when the mounting disc is controlled by the mode, the liquid injection device needs the mounting disc to reach the accurate position to complete smooth production when automatic filling and sealing is completed, and the mounting disc can be more accurate when the mounting disc is positioned in a rotating mode by using two bolt connections.

The PCR tube 111 (or centrifuge tube) comprises a tube body 108, a connector 109 and a cover 110, wherein the tube body 108 is installed in the through hole 102, the cover 110 is connected with the tube body 108 through the connector 109, the connector 109 is located between adjacent positioning parts 103, and the cover 110 is located above the output end of the cover closing device 107. The connecting piece 109 of the PCR tube 111 (or centrifuge tube) can be directly clamped between two adjacent positioning portions 103, so that the rotation of the PCR tube 111 (or centrifuge tube) is avoided when the PCR tube 111 (or centrifuge tube) is closed.

In summary, the mounting disc provided by the invention is provided with the plurality of positioning portions around the disc body, a part of the PCR tube (or the centrifuge tube) can be installed between the adjacent positioning portions, and the adjacent positioning portions are used for positioning the PCR tube (or the centrifuge tube), so that the PCR tube (or the centrifuge tube) can be effectively positioned.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The mounting disc is characterized by comprising a disc body and a plurality of positioning parts, wherein the disc body is provided with a plurality of through holes, the axis of each through hole is parallel to the axis of the disc body, the through holes are arranged at intervals along the circumferential direction of the disc body, the positioning parts are positioned at the edge positions of the disc body, the positioning parts are arranged at intervals along the circumferential direction of the disc body, the number of the positioning parts is the same as that of the through holes, and the positioning parts are positioned between two adjacent through holes; the dish body is provided with the second recess, the second recess sets up to a plurality ofly, and is a plurality of the second recess is followed the circumference interval of dish body sets up, and is adjacent the second recess forms location portion, the dish body sets up first recess, first recess is followed the circumference of dish body is the annular, the through-hole with the tank bottom intercommunication of first recess.

2. The mounting disk of claim 1, wherein the second groove extends in a radial direction of the disk body, and the second groove passes through an axial center line of the through hole.

3. The mounting disk according to claim 1, wherein a diameter of a circle in which the plurality of positioning portions are located is larger than a diameter of a circle in which the plurality of through holes are located.

4. The mounting plate of claim 1, wherein the positioning portion is arc-shaped, and an extension line of a side of the positioning portion close to the center of the plate body is tangent to the through hole.

5. The mounting tray according to claim 4, wherein the positioning portion is provided with a slope surface on a side of the positioning portion away from the center of the tray body, the slope surface being inclined inward in a direction in which the positioning portion is away from the center of the tray body.

6. An automatic cover closing mechanism, which is characterized by comprising a driving mechanism, a cover closing device and a mounting disc as claimed in any one of claims 1 to 5, wherein the mounting disc is mounted at the output end of the driving mechanism, the mounting disc is driven by the driving mechanism to rotate along the axis line of the mounting disc, the mounting disc is used for mounting a PCR tube, and the cover closing device closes the PCR tube in a rotating manner.

7. The automatic lid closing mechanism according to claim 6, wherein the mounting plate is connected to the output end of the driving mechanism by two bolts, and the two bolts are located on the same diameter of the mounting plate.

8. The automatic lid closing mechanism according to claim 6, wherein the PCR tube comprises a tube body, a connector and a lid, the tube body is mounted in the through hole, the lid is connected with the tube body through the connector, the connector is located between the adjacent positioning portions, and the lid is located above the output end of the lid closing device.