CN215757370U

CN215757370U - Hot lid mechanism and PCR equipment

Info

Publication number: CN215757370U
Application number: CN202121394887.9U
Authority: CN
Inventors: 邓秀红
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2022-02-08
Anticipated expiration: 2031-06-22

Abstract

The utility model belongs to the technical field of PCR (polymerase chain reaction) equipment, and particularly relates to a hot cover mechanism and the PCR equipment. Wherein, hot lid mechanism includes test tube holder, hot lid subassembly and lift drive arrangement. The test tube support is including being formed with the support panel in test tube cartridge hole, and the hot lid subassembly sets up in the top of support panel, and lift drive can drive the curved lift of hot lid subassembly in the top of support panel. In the hot cover mechanism, the test tube can be placed on the panel of the support, the hot cover assembly can cover the open end of the test tube to prevent water vapor in the test tube from floating out, meanwhile, the temperature can be maintained at a proper value to prevent the water vapor in the test tube from condensing on the hot cover assembly, the accuracy of an experiment is improved, particularly, the lifting driving device in the hot cover mechanism can drive the hot cover assembly to automatically open and close the test tube support, the aspect is fast, the operation of a user is convenient, and the efficiency is improved.

Description

Hot lid mechanism and PCR equipment

Technical Field

The utility model belongs to the technical field of PCR (polymerase chain reaction) equipment, and particularly relates to a hot cover mechanism and the PCR equipment.

Background

PCR appearance by wide application in biology and medicine field, mainly used nucleic acid sequence detects, it covers to be provided with heat generally on the PCR appearance, a sample test tube for the lid closes in the PCR appearance, the test tube can be set up in the temperature environment of difference, and the heat lid can prevent that the vapor in the test tube from wafting out, suitable temperature can be maintained to the heat lid simultaneously, avoid the condensation of vapor on the heat lid, guarantee the water content in the test tube, improve the accuracy of test, however the general manual lid of present apron closes, it is extremely inconvenient.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects or shortcomings in the prior art, the utility model provides a hot cap mechanism and a PCR device, which can automatically open or close the hot cap assembly, are convenient and quick and are convenient for a user to operate.

To achieve the above object, a first aspect of the present invention provides a thermal cover mechanism comprising:

the test tube bracket comprises a bracket panel formed with a test tube inserting hole;

a heat cover assembly disposed over the bracket panel; and

the lifting driving device can drive the heat cover component to curve up and down above the bracket panel.

Optionally, the lifting driving device is configured to independently drive the thermal cover assembly to curve up after synchronously driving the test tube holder and the thermal cover assembly to vertically rise for a preset stroke.

Optionally, the lift drive comprises a vertical lift drive for connecting the lift power source to the test tube holder and a curvilinear lift drive connected between the test tube holder and the heat cap assembly.

Optionally, lift drive includes two fixed vertical boards that set up along horizontal parallel interval, be formed with the spout that forms through connecting from top to bottom spout circular arc section and the vertical section of spout on the face of fixed vertical board, the test tube support sets up between two fixed vertical boards and is formed with two support legs that stretch out downwards from the horizontal both ends of support panel respectively, the heat lid subassembly sets up between two fixed vertical boards and is formed with two horizontal pivots that stretch out from horizontal both ends respectively, two horizontal pivots correspond and penetrate in two spouts, horizontal pivot and the support leg of horizontal each side correspond ground and the both ends pivotal connection as the driving arm of curve lift driving medium.

Optionally, the lifting driving device comprises two vertical sliding rods respectively arranged close to the inner side plate surfaces of the two fixed vertical plates, the vertical lifting driving part is formed into a sliding block which is sleeved on the vertical sliding rods in a sliding manner and is fixedly connected with the support legs, and a reset spring is pressed between the top end of the vertical sliding rod and the top end of the sliding block.

Optionally, the transverse rotating shaft and the sliding groove are in transition connection through a rolling bearing.

Optionally, the lifting driving device comprises a first driving device for driving the test tube holder to lift and a second driving device for driving the hot cap assembly to lift.

Optionally, the heat cover assembly includes an upper cover and a lower cover that are vertically disposed above and below and elastically connected to each other.

Optionally, the lower cover assembly includes a cover-shaped lower cover body, a heat cover body covering a downward cover opening of the lower cover body, and a heating plate, a pressing plate, a sealing ring and an insulating heat-conducting silica gel cloth sequentially stacked and mounted in a cover cavity of the lower cover body from top to bottom.

In a second aspect, the utility model provides a PCR device comprising the above-described thermal cover mechanism.

In the hot cover mechanism, the test tube can be placed on the panel of the support, the hot cover assembly can cover the open end of the test tube to prevent water vapor in the test tube from floating out, meanwhile, the temperature can be maintained at a proper value to prevent the water vapor in the test tube from condensing on the hot cover assembly, the accuracy of an experiment is improved, particularly, the lifting driving device in the hot cover mechanism can drive the hot cover assembly to automatically open and close the test tube support, the aspect is fast, the operation of a user is convenient, and the efficiency is improved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is one of the schematic views of a thermal cover mechanism according to an embodiment of the present invention;

FIG. 2 is a second schematic diagram of a thermal cover mechanism according to an embodiment of the present invention;

FIG. 3 is a third schematic diagram of a thermal lid mechanism according to an embodiment of the present invention;

fig. 4 is an exploded view of a thermal cover assembly according to an embodiment of the present invention.

Description of reference numerals: 10. a test tube holder; 20. a hot lid assembly; 11. a bracket panel; 12. a support leg; 21. a transverse rotating shaft; 22. an upper cover body; 23. a lower cover assembly; 24. pre-pressing a spring; 231. a lower cover body; 232. a thermal cap body; 233. a heat generating plate; 234. pressing a plate; 235. a seal ring; 236. insulating heat-conducting silica gel cloth; 31. fixing the vertical plate; 32. a chute; 41. a drive arm; 42. a vertical slide bar; 43. a slider; 44. a return spring; 50. test tube

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the utility model, are given by way of illustration and explanation only, not limitation.

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

In embodiments of the utility model, where the context requires otherwise, the use of directional terms such as "upper, lower, top and bottom" is generally intended in the orientation shown in the drawings or the positional relationship of the various components in a vertical, vertical or gravitational orientation.

The utility model will be described in detail below with reference to exemplary embodiments and with reference to the accompanying drawings.

Fig. 1 is one of schematic views of a thermal cover mechanism according to an embodiment of the present invention, the thermal cover mechanism being in an open state. Fig. 3 is a third schematic diagram of a thermal lid mechanism according to an embodiment of the present invention, the thermal lid mechanism being in a closed state. As shown in fig. 1 to 3, a thermal cap mechanism according to a first exemplary embodiment of the present invention includes a test tube holder 10, a thermal cap assembly 20, and a lifting and lowering driving device. Wherein, test tube holder 10 is including being formed with the support panel 11 of test tube cartridge hole, and heat lid subassembly 20 sets up in the top of support panel 11, and lift drive arrangement can drive heat lid subassembly 20 and curve lift in the top of support panel 11.

Specifically, the test tube inserting hole on the support panel 11 in the test tube support 10 is used for placing the test tube 50, the heat cover assembly 20 is located above the support panel 11 and used for sealing the open end of the test tube 50 and preventing the water vapor in the test tube 50 from floating out of the test tube, meanwhile, the heat cover assembly 20 can maintain a proper temperature to avoid the water vapor in the test tube 50 from condensing on the heat cover assembly 20, and the lifting driving device can drive the heat cover assembly 20 to lift so that the heat cover assembly 20 is automatically separated from or combined with the support panel. So set up, can open or the sealed test tube on the support panel 11 automatically, convenient and fast, the user operation of being convenient for.

Further, the elevation driving means is configured to be able to independently drive the heat lid assembly 20 to curve up after synchronously driving the test tube holder 10 and the heat lid assembly 20 to vertically ascend by a preset stroke.

Specifically, the lifting driving device can firstly vertically lift the test tube holder 10 and the heat cover assembly 20 together, and then curve-lift the heat cover assembly 20, so that the heat cover assembly 20 is separated from the test tube holder 10.

In one embodiment, the lifting driving device includes a first driving device for driving the test tube holder 10 to be lifted and a second driving device for driving the heat cover assembly 20 to be lifted. In this embodiment, the lifting driving device includes two lifting power sources, the first driving device drives the test tube holder 10 and the heat cover assembly 20 to ascend vertically and synchronously, and the second driving device drives the heat cover assembly 20 to ascend in a curve so that the heat cover assembly 20 and the test tube holder 10 are separated.

In another embodiment, the elevation drive means comprises a vertical elevation drive for connecting the elevation power source to the test tube holder 10 and a curvilinear elevation drive connected between the test tube holder 10 and the heat lid assembly 20. In this embodiment, lift drive only includes a lift power supply, and the lift power supply is connected synchronous drive test tube holder 10 and the vertical ascending motion of hot cap subassembly 20 with vertical lift driving medium, then under the effect of curve lift driving medium for thereby hot cap subassembly 20 curve ascending motion separates hot cap subassembly and test tube holder 10. Therefore, a plurality of lifting power sources are not needed, the structure is simplified, the size is reduced, and the cost is reduced.

Further, lift drive arrangement includes two fixed vertical boards 31 that set up along horizontal parallel interval, be formed with the spout 32 that forms through connecting from top to bottom spout circular arc section and the vertical section of spout on fixed vertical board 31's the face, test tube support 10 sets up between two fixed vertical boards 31 and is formed with two support legs 12 that stretch out downwards from the horizontal both ends of support panel 11 respectively, heat cover subassembly 20 sets up between two fixed vertical boards 31 and is formed with two horizontal pivot 21 that stretch out from horizontal both ends respectively, two horizontal pivot 21 correspond penetrate in two spout 32, horizontal pivot 21 and the support leg 12 of each side correspond ground and the both ends pivotal connection of the driving arm 41 as the curve lift driving medium.

Specifically, the driving arm 41 is used as a curve lifting driving member, two ends of the driving arm 41 are respectively pivotally connected with the transverse rotating shaft 21 on the hot cap assembly 20 and the support leg 12 on the test tube support 10, the transverse rotating shaft 21 extends into the sliding groove 32, and the sliding groove 32 includes a sliding groove arc section and a sliding groove vertical section. Under the restriction of the vertical section of spout, the distance of the vertical section of spout that can be synchronous vertically to rise of hot cap subassembly 20 and test tube holder 10, under the restriction of spout circular arc section, the relative test tube holder 10 curve of hot cap subassembly 20 rises for hot cap subassembly 20 and test tube holder 10 stagger, thereby open hot cap subassembly 20 so that take out test tube 50.

Fig. 2 shows a second schematic view of the thermal capping mechanism according to the second embodiment of the present invention, in which the transverse rotation shaft 21 is located at the end of the vertical section of the chute. It will be appreciated that during the simultaneous vertical ascent phase, the thermal cap assembly 20 and the test tube holder 10 remain merged, and at the end of the vertical ascent phase, the thermal cap assembly 20 remains closed over the open end of the test tube 50, at which time the temperature bath for temperature control below the test tube 50 can be replaced. After the experiment is finished, the curve ascending stage can be driven to enter, and the hot cap assembly 20 and the test tube support 10 are separated, so that the test tube 50 can be taken out conveniently.

Further, the lifting driving device comprises two vertical sliding rods 42 respectively arranged close to the inner side plate surfaces of the two fixed vertical plates 31, the vertical lifting transmission member is formed into a sliding block 43 which is sleeved on the vertical sliding rods 42 in a sliding mode and fixedly connected with the bracket leg 12, and a return spring 44 is pressed between the top end of each vertical sliding rod 42 and the top end of each sliding block 43 in a pressing mode.

Specifically, the vertical lifting transmission part comprises a vertical sliding rod 42 and a sliding block 43 sleeved on the vertical sliding rod 42 in a sliding manner, the bracket leg 12 is fixedly connected with the sliding block 43 to connect the test tube bracket 10 and the sliding block 43 into a whole, and the lifting driving source can drive the sliding block 43 to vertically lift along the vertical sliding rod 42, so that the test tube bracket 10 only can vertically lift. In addition, under the action of the driving arm 41 and the sliding groove 32, the heat cover assembly 20 ascends vertically in synchronization with the test tube holder 10 and then ascends curvilinearly relative to the test tube holder 10. The lifting driving source is disconnected from the sliding block 43, the sliding block 43 is vertically descended under the action of the return spring 44, so that the heat cover assembly 20 and the test tube holder 10 are driven to move downwards, the heat cover assembly 20 and the test tube holder 10 are combined, and the test tube holder 10 is automatically covered. In this embodiment, the elevating driving source is a motor.

In the embodiment of the present invention, the transverse rotating shaft 21 and the sliding groove 32 are transitionally connected by arranging a rolling bearing. Specifically, a rolling bearing is provided on the transverse rotating shaft 21, and is connected with the sliding groove 32 through the rolling bearing to reduce friction force, so that the lifting process is smoother.

In the embodiment of the present invention, the heat cover assembly 20 includes an upper cover 22 and a lower cover assembly 23 disposed vertically and elastically connected to each other. As shown in fig. 4, in the illustrated embodiment, the heat cover assembly 20 includes an upper cover 22 and a lower cover assembly 23, a pre-pressure spring 24 is disposed between the upper cover 22 and the lower cover assembly 23, and the heat cover assembly 20 is adjusted by the pre-pressure spring 24 to be in close contact with the outlet end of the test tube 50, so as to ensure sealing.

Further, the lower cover assembly 23 includes a cover-shaped lower cover 231, a heat cover body 232 covering a downward opening of the lower cover 231, and a heat generating plate 233, a pressing plate 234, a sealing ring 235 and an insulating and heat conducting silicon adhesive tape 236 which are sequentially stacked and mounted in a cover cavity of the lower cover 231 from top to bottom.

As shown in fig. 4, specifically, the heating plate 233, the pressing plate 234, the sealing ring 235 and the insulating heat-conducting silicone cloth 236 are located between the lower cover 231 and the heat cover body 232, and are sequentially connected in series and fixed by screws to form the lower cover assembly 23.

The second exemplary embodiment of the present invention provides a PCR device, which includes the above-mentioned thermal cover mechanism, and since the PCR device includes the above-mentioned thermal cover mechanism, it is obvious to have all the beneficial effects of the above-mentioned thermal cover mechanism, and details are not described herein.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.

It should be noted that, in the foregoing embodiments, various features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in further detail in the embodiments of the present invention.

In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.

Claims

1. A thermal cover mechanism, comprising:

a test tube holder (10) including a holder panel (11) formed with a test tube insertion hole;

a heat cover assembly (20) disposed above the shelf panel (11); and

and the lifting driving device can drive the hot cover component (20) to lift in a curve above the bracket panel (11).

2. The hot lid mechanism according to claim 1, wherein the lifting drive means is configured to independently drive the hot lid assembly (20) to curve up after synchronously driving the test tube holder (10) and the hot lid assembly (20) to vertically ascend for a preset stroke.

3. Hot lid mechanism according to claim 2, characterized in that the lifting drive comprises a vertical lifting drive for connecting a lifting power source to the test tube holder (10) and a curvilinear lifting drive connected between the test tube holder (10) and the hot lid assembly (20).

4. The hot lid mechanism according to claim 3, wherein the lifting drive means comprises two fixed vertical plates (31) arranged in parallel at a spacing in the lateral direction, a sliding groove (32) formed by connecting the sliding groove arc section and the sliding groove vertical section up and down is formed on the surface of the fixed vertical plate (31), the test tube bracket (10) is arranged between the two fixed vertical plates (31) and is formed with two bracket legs (12) which respectively extend downwards from the two transverse ends of the bracket panel (11), the heat cover component (20) is arranged between the two fixed vertical plates (31) and is formed with two transverse rotating shafts (21) extending from two transverse ends respectively, the two transverse rotating shafts (21) correspondingly penetrate into the two sliding grooves (32), and the transverse rotating shafts (21) and the support legs (12) on each transverse side are correspondingly connected with two ends of a transmission arm (41) serving as a curve lifting transmission piece in a pivoting manner.

5. The hot lid mechanism according to claim 4, wherein the lifting driving device comprises two vertical sliding rods (42) respectively arranged near the inner side plate surfaces of the two fixed vertical plates (31), the vertical lifting driving member is formed as a sliding block (43) slidably sleeved on the vertical sliding rods (42) and fixedly connected with the bracket legs (12), and a return spring (44) is pressed between the top end of the vertical sliding rod (42) and the top end of the sliding block (43).

6. Hot lid mechanism according to claim 4, characterized in that the transverse shaft (21) and the chute (32) are transitionally connected by providing a rolling bearing.

7. The hot lid mechanism according to claim 2, wherein the elevation driving means comprises a first driving means for driving the elevation of the test tube holder (10) and a second driving means for driving the elevation of the hot lid assembly (20).

8. The cover heating mechanism according to any one of claims 1 to 7, wherein the cover heating assembly (20) comprises an upper cover body (22) and a lower cover assembly (23) which are vertically arranged one above the other and elastically connected to each other.

9. The cover heating mechanism according to claim 8, wherein the lower cover assembly (23) comprises a cover-shaped lower cover body (231), a heat cover body (232) covering a downward cover opening of the lower cover body (231), and a heating plate (233), a pressing plate (234), a sealing ring (235) and an insulating heat-conducting silica gel cloth (236) which are sequentially stacked and mounted in a cover cavity of the lower cover body (231) from top to bottom.

10. A PCR device, characterized in that it comprises a hot lid mechanism according to any one of claims 1 to 9.