CN217536018U

CN217536018U - Hot cover module of full-automatic PCR fluorescent quantitative analyzer

Info

Publication number: CN217536018U
Application number: CN202221585945.0U
Authority: CN
Inventors: 胡志丹; 韩旭
Original assignee: Zhongyuan Huiji Biotechnology Co Ltd
Current assignee: Zhongyuan Huiji Biotechnology Co Ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-04
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a thermal cover module of a full-automatic PCR fluorescent quantitative analyzer, which comprises a thermal cover component and a support component, wherein the support component comprises a support main body, a sample tube placing plate is arranged on the support main body, and the thermal cover component is arranged above the sample tube placing plate; the bracket main body is provided with opening and closing guide rods which are respectively positioned at two sides of the sample tube placing plate, and the hot cover component is in sliding fit with the opening and closing guide rods; the sample tube placing plate is provided with a sample tube placing plate, and the opening and closing mechanism is used for driving the hot cover component to move along the opening and closing guide rod so as to cover the sample tube placing plate or open the sample tube placing plate. The utility model discloses a hot lid module of full-automatic PCR fluorescence quantitative analysis appearance, the hot lid subassembly of drive removes along the guide arm that opens and shuts for support subject, can realize that opening and shutting that hot lid subassembly and sample tube placed between the board compares in current hinge type mode of opening and shutting, and occupation space is little and the structure is simpler.

Description

Hot cover module of full-automatic PCR fluorescent quantitative analyzer

Technical Field

The utility model belongs to the technical field of medical instrument, specificly be a hot lid module of full-automatic PCR fluorescence quantitative analysis appearance.

Background

At present, the existing analyzers mostly adopt a turnover structure to realize the opening and closing of the thermal cover on the reaction base, and the turnover thermal cover is usually connected with the reaction base by a hinge torsion spring. For example, the Chinese patent with the publication number of CN212152337U discloses a full-automatic PCR hot cover, which comprises a PCR box body, wherein the PCR box body is also hinged with the PCR hot cover; a fixing frame is welded at the hinged position of the PCR hot cover, a rotating motor is fixed on the fixing frame through a nut, a rotating shaft of the rotating motor is connected with the hinged shaft, and a locking rotating shaft is further fixedly sleeved on the rotating shaft of the rotating motor; the fixing support is characterized in that a fixing bottom plate is further mounted at the lower end of the fixing support, a nut of the fixing bottom plate is fixed on the PCR box body, a fixing support is fixed on the nut of the fixing bottom plate, a locking linear screw rod motor is fixed on the nut of the fixing support, and a locking rod of the locking linear screw rod motor upwards penetrates through the fixing support.

This be used for full-automatic PCR hot lid adopts rotation motor and linear screw motor to drive PCR hot lid respectively and rotates and lock, though can satisfy the automatic upset of PCR hot lid and the technical purpose of locking to a certain extent, nevertheless adopts two motors, has the structure complicacy and is unfavorable for the problem of later maintenance. In addition, the existing turnover type hot cover also has the problem of large space required during working, and is not beneficial to the layout design of the inner space of the analyzer.

Disclosure of Invention

In view of this, the utility model aims at providing a hot lid module of full-automatic PCR fluorescence quantitative analysis appearance not only can satisfy and realize opening and shutting, has simple structure moreover, advantage that occupation space is little.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a thermal cover module of a full-automatic PCR fluorescent quantitative analyzer comprises a thermal cover assembly and a support assembly, wherein the support assembly comprises a support main body, a sample tube placing plate is installed on the support main body, and the thermal cover assembly is arranged above the sample tube placing plate; the bracket main body is provided with opening and closing guide rods which are respectively positioned at two sides of the sample tube placing plate, and the hot cover component is in sliding fit with the opening and closing guide rods;

the thermal cover opening and closing mechanism is used for driving the thermal cover assembly to move along the opening and closing guide rod so as to cover on or open from the sample tube placing plate.

Further, the hot cover opening and closing mechanism comprises a linear track for guiding the support main body to move, a hot cover track for guiding the hot cover assembly to move and a linear driving mechanism for driving the support main body to move along the linear track;

the hot cover track comprises a first hot cover track section and a second hot cover track section which are parallel to the linear track, the distance between the first hot cover track section and the linear track is larger than the distance between the second hot cover track section and the linear track, and a connecting section is arranged between the first hot cover track section and the second hot cover track section for communication;

when the heat cover assembly is positioned on one section of the heat cover track, the heat cover assembly is positioned above the sample tube placing plate; when the thermal cover assembly is positioned on the thermal cover track segment, the thermal cover assembly covers the sample tube placement plate.

Further, a support position detection assembly used for detecting the moving position of the support main body on the linear track is arranged between the support main body and the linear track.

Further, the linear driving mechanism comprises a first belt wheel and a second belt wheel which are respectively positioned at two ends of the linear track, a transmission belt is sleeved between the first belt wheel and the second belt wheel and fixedly connected with the support main body, and the linear driving mechanism further comprises a driving motor used for driving the first belt wheel or the second belt wheel to rotate.

Furthermore, guide plates are respectively arranged on two sides of the support main body, and the linear track and the hot cover track are respectively arranged on the guide plates; or, the both sides of support main part are equipped with the deflector respectively, the below of deflector is equipped with the bottom plate, the straight line track sets up on the bottom plate, hot lid track sets up on the deflector.

Furthermore, the hot cover track is a guide groove formed in the guide plate, and a guide shaft matched with the guide groove is arranged on the hot cover assembly.

Further, a bearing in rolling fit with the guide groove is mounted on the guide shaft.

Further, a linear bearing matched with the opening and closing guide rod is arranged on the hot cover component.

Furthermore, the opening and closing guide rod is perpendicular to the linear track.

Further, the included angle between the connecting section and one section of the hot cover track is 110-150 degrees.

Furthermore, the bracket main body is provided with a warehouse inlet and outlet rail and a movable bracket in sliding fit with the warehouse inlet and outlet rail, the sample tube placing plate is installed on the movable bracket, and the bracket main body is provided with a warehouse inlet and outlet driving mechanism for driving the movable bracket to move along the warehouse inlet and outlet rail so as to drive the sample tube placing plate to extend out of or retract into the warehouse inlet and outlet driving mechanism below the heat cover assembly.

Furthermore, the warehouse inlet and outlet driving mechanism comprises a threaded screw rod parallel to the warehouse inlet and outlet rail, a nut seat in threaded fit with the threaded screw rod is arranged on the movable support, and a screw rod motor used for driving the threaded screw rod to rotate is installed on the support main body.

Further, a warehouse in and out position detection assembly used for detecting the moving position of the movable support is arranged between the movable support and the support main body.

Further, a sample support which moves synchronously with the movable support is mounted on the movable support, the sample tube placing plate is mounted on the sample support, a support heating film located below the sample tube placing plate is arranged on the sample support, and the sample support is made of a heat insulating material.

Further, the warehouse inlet and outlet rail is parallel to the linear rail.

The beneficial effects of the utility model reside in that:

the utility model discloses a full-automatic PCR fluorescence quantitative analysis appearance heat cover module, through set up the opening and shutting guide arm that is located sample tube and places the board both sides on the support main part, and install the heat cover subassembly on opening and shutting the guide arm and can move along opening and shutting the guide arm, so, drive the heat cover subassembly and move down along opening and shutting the guide arm relative to the support main part, can cover the heat cover subassembly on the sample tube places the board, drive the heat cover subassembly and move up along opening and shutting the guide arm relative to the support main part, can open the heat cover subassembly from the sample tube places the board; the mode that the guide arm translation was opened and shut along opening and shutting is adopted to the hot lid subassembly promptly and the sample tube is placed and is realized opening and shutting between the board, compares in current hinge type mode of opening and shutting, and occupation space is little and the structure is simpler.

The utility model discloses still have following technological effect:

1) By arranging the linear track in sliding fit with the support main body and the hot cover track in fit with the hot cover assembly in the hot cover opening and closing mechanism, when the linear driving mechanism drives the support main body to move along the linear track, a sample can be driven to enter different temperature areas so as to realize thermal circulation; under the effect of the opening and closing guide rod, the heat cover component also moves along the direction parallel to the linear track, and under the guiding effect of the heat cover track, the heat cover component also moves along the direction vertical to the linear track between the first section of the heat cover track and the second section of the heat cover track, namely the heat cover component can move downwards or upwards relative to the bracket main body along the opening and closing guide rod between the first section of the heat cover track and the second section of the heat cover track, so that the technical purpose of covering the heat cover component on the sample tube placing plate or opening the heat cover from the sample tube placing plate is achieved.

2) Through set up into and out the storehouse track in the support subject to with movable support mounting on the track of passing in and out the storehouse, so, utilize into and out storehouse actuating mechanism can drive movable support along passing in and out storehouse rail motion, because the sample pipe is placed the board and is installed on movable support, and then drive sample pipe and place the board along passing in and out storehouse rail motion, so, can make the sample pipe place the board and expose from the below of heat lid, so that get and put the sample pipe, the sample pipe is got and is put the completion back, can make the sample pipe place the board again and get back to the heat lid below.

3) The technical purpose of heating the sample placed on the sample tube placing plate can be realized by arranging the sample support on the movable support and arranging the support heating film positioned below the sample tube placing plate on the sample support; the sample support is made of heat insulation materials, so that heat diffusion can be prevented from affecting other components.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

FIG. 1 is a right side view of a thermal cover module of a full-automatic PCR fluorescent quantitative analyzer according to an embodiment of the present invention;

FIG. 2 is a left side view of the thermal cap module of the full-automatic PCR quantitative analyzer of the present embodiment;

FIG. 3 is a schematic structural view of a guide plate;

FIG. 4 is a schematic structural view of a thermal cover assembly;

FIG. 5 is a schematic view of a bracket assembly;

FIG. 6 is an isometric view of a bracket assembly.

Description of reference numerals:

10-a thermal cover; 11-putting on a hot cover; 12-a hot lid guide bar; 13-a spring; 14-thermal cover plate; 15-heat cover insulation board; 16-a temperature sensor; 17-a guide shaft; 18-a bearing; 19-linear bearings;

20-a stent body; 21-sample tube placing plate; 22-opening and closing guide rods; 23-a warehouse-in and warehouse-out rail; 24-a movable support; 25-a threaded screw rod; 26-nut seats; 27-a screw motor; 28-a second optocoupler sensor; 29-a second light barrier; 30-a sample holder; 31-a top plate;

41-linear track; 42-hot lid track; 42 a-hot lid track section; 42 b-Hot lid track two section; 42 c-a connecting segment; 43-a first optocoupler sensor; 44-a first light barrier; 45-a first pulley; 46-a second pulley; 47-a transmission belt; 48-a drive motor; 49-a guide plate; 49 a-bottom plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

As shown in fig. 1 and 2, the thermal cover module of the fully automatic PCR fluorescence quantitative analyzer of the present embodiment includes a thermal cover assembly and a support assembly. The rack assembly of the embodiment includes a rack main body 20, a sample tube placing plate 21 is mounted on the rack main body 20, and a heat cover assembly is disposed above the sample tube placing plate 21. The holder main body 20 is provided with opening and closing guide rods 22 respectively located on both sides of the sample tube placing plate 21, and the heat cover assembly is slidably fitted with the opening and closing guide rods 22 so that the heat cover assembly can be moved along the opening and closing guide rods 22 relative to the sample tube placing plate 21 to cover the sample tube placing plate 21 or be opened from the sample tube placing plate 21.

In order to drive the heat lid assembly to move along the opening and closing guide rod 22 relative to the sample tube placing plate 21, the heat lid module of the fully automatic PCR quantitative analyzer of the present embodiment includes a rack assembly further including a heat lid opening and closing mechanism for driving the heat lid assembly to move along the opening and closing guide rod 22 so that the heat lid assembly is covered on the sample tube placing plate 21 or is opened from the sample tube placing plate 21. The heat cover opening and closing mechanism can be realized in various ways, such as directly arranging an air cylinder, an electric cylinder, a threaded screw mechanism, a rack and pinion mechanism and the like on the bracket main body 20 for driving the heat cover assembly to move along the opening and closing guide rod 22. The hot lid opening and closing mechanism of the present embodiment includes a linear rail 41 for guiding the movement of the holder main body 20, a hot lid rail 42 for guiding the movement of the hot lid assembly, and a linear driving mechanism for driving the holder main body 20 to move along the linear rail 41. Specifically, the bracket body 20 of the present embodiment is provided with guide plates 49 at both sides thereof, respectively, a bottom plate 49a is provided below the guide plates 49, the linear rail 41 is provided on the bottom plate 49a, and the heat cover rail 42 is provided on the guide plates 49. Of course, in other embodiments, the guide plates 49 may be disposed only on both sides of the rack body 20, and the linear rails 41 and the thermal cover rails 42 may be disposed on the guide plates 49, respectively. The heat cover rail 42 comprises a heat cover rail section 42a and a heat cover rail section 42b which are parallel to the linear rail 41, the distance between the heat cover rail section 42a and the linear rail 41 is larger than the distance between the heat cover rail section 42b and the linear rail 41, and a connecting section 42c is arranged between the heat cover rail section 42a and the heat cover rail section 42b for communication, so that when the linear driving mechanism drives the support main body 20 to move along the linear rail 41, the position of the heat cover assembly moves between the heat cover rail section 42a and the heat cover rail section 42b, namely, the heat cover assembly can move along the linear rail 41 along with the support main body 20 and can move along the opening and closing guide rod 22 under the action of the heat cover rail 42. When the heat lid assembly is positioned on the heat lid rail section 42a, the heat lid assembly is positioned above the sample tube placing plate 21, that is, the heat lid assembly is in an open state; when the heat lid assembly is positioned on the heat lid rail section 42b, the heat lid assembly is placed on the sample tube placing plate 21, i.e., the heat lid assembly is in a closed state. When the heat lid assembly is moved in the connecting section 42c, the process change state between the heat lid assembly and the sample tube placing plate 21 is opened or closed. In the preferred embodiment, the angle between the connecting section 42c and the first section 42a of the heat cover track is 110-150 °, and the angle between the connecting section 42c and the first section 42a of the heat cover track is 135 °, so that the heat cover assembly can run more smoothly between the first section 42a of the heat cover track and the second section 42b of the heat cover track. When the included angle between the connecting section 42c and the hot cover track section 42a is less than 110 degrees, the hot cover assembly is difficult to move in the vertical direction, and the load of the motor is increased; when the angle between the connecting section 42c and the hot lid track section 42a is greater than 150 °, the movement stroke of the hot lid assembly in the horizontal direction is increased.

As shown in fig. 2, in order to detect the position at which the carriage main body 20 moves along the linear rail 41, a carriage position detecting unit for detecting the position of the carriage main body 20 is further provided between the linear rail 41 and the carriage main body 20. The bracket position detection assembly can be realized by adopting various existing modes, such as a displacement sensor and the like. The bracket position detection assembly of this embodiment includes first opto-coupler sensors 43 respectively disposed at two ends of the linear track 41, and a first light barrier 44 matched with the first opto-coupler sensors 43 is disposed on the bracket main body 20. Two first opto-coupler sensors 43 correspond with one section 42a of hot lid track and hot lid track two sections 42b respectively, so, through two first opto-coupler sensors 43, can judge that support main part 20 is located one section 42a of hot lid track or hot lid track two sections 42b on to can judge whether hot lid subassembly covers on sample tube places board 21. Of course, in some embodiments, the position of the rack main body 20 is detected by the rack position detecting assembly, so that the temperature or the like of heating the sample in the sample tube placing plate 21 can also be adjusted according to the position of the rack main body 20, which will not be described in detail. As shown in fig. 3, the linear driving mechanism of the present embodiment includes a first pulley 45 and a second pulley 46 respectively located at two ends of the linear track 41, a driving belt 47 is sleeved between the first pulley 45 and the second pulley 46, the driving belt 47 is fixedly connected with the support main body 20, the linear driving mechanism further includes a driving motor 48 for driving the first pulley 45 or the second pulley 46 to rotate, and the driving motor 48 of the present embodiment is a stepping motor. Of course, the linear driving mechanism can also be realized by adopting various existing modes, and the description is not repeated.

As shown in fig. 3, the linear rail 41 of the present embodiment is fixedly mounted on the bottom plate 49a, the linear rail 49 is provided with a linear slider 50 slidably engaged therewith, and the holder main body 20 is fixedly connected to the linear slider 50. Of course, the transmission belt 47 of the present embodiment is also fixedly connected to the linear slider 50, that is, the transmission belt 47 is fixedly connected to the bracket main body 20 through the linear slider 50. In this embodiment, the hot lid track 42 is a guide slot opened in the guide plate 49. As shown in fig. 4, the heat cover assembly is provided with a guide shaft 17 engaged with the guide groove. In order to reduce the friction between the guide shaft 17 and the hot lid track 42, the present embodiment has a bearing 18 mounted on the guide shaft in rolling engagement with the guide groove.

In the embodiment, the opening and closing are realized by controlling the up-and-down movement of the heat cover assembly relative to the sample tube placing plate 21, so that the heat cover assembly is always located above the sample tube placing plate 21, which may cause inconvenience in taking and placing the sample tube. In view of this, the rack main body 20 of the present embodiment is provided with a feeding and discharging rail 23 and a movable rack 24 slidably engaged with the feeding and discharging rail 23, the sample tube placing plate 21 is mounted on the movable rack 24, and the rack main body 20 is provided with a feeding and discharging driving mechanism for driving the movable rack 24 to move along the feeding and discharging rail 23 to drive the sample tube placing plate 21 to extend from or retract to below the heat cover assembly. Thus, the movable bracket 24 is driven by the warehouse inlet and outlet driving mechanism to move along the warehouse inlet and outlet rail 23, so that the sample tube placing plate 21 extends out of the lower part of the heat cover assembly, namely, the sample tube placing plate 21 and the heat cover assembly are staggered to facilitate taking and placing of the sample tubes. Of course, the sample tube placing plate 21 may also be driven to retract under the heat lid assembly after the sample tube is taken and placed. The driving mechanism for the warehouse entry and the warehouse exit of the embodiment is a linear driving mechanism in essence, and can be realized by adopting various existing modes, such as a gear rack mechanism, a threaded screw rod mechanism, a belt transmission mechanism and the like. As shown in fig. 5 and fig. 6, the driving mechanism for driving the warehouse entry and exit of the present embodiment includes a threaded lead screw 25 parallel to the warehouse entry and exit rail 23, a nut seat 26 in threaded fit with the threaded lead screw 25 is disposed on the movable bracket 24, and a lead screw motor 27 for driving the threaded lead screw 25 to rotate is mounted on the bracket main body 20, that is, the driving mechanism for driving the warehouse entry and exit of the present embodiment adopts a threaded lead screw mechanism. In order to detect the position of the movable carriage 24 moving along the incoming and outgoing track 23, an incoming and outgoing position detecting component for detecting the moving position of the movable carriage 24 is arranged between the carriage main body 20 and the movable carriage 24 in the embodiment. The warehouse entry and exit position detection assembly can be realized by adopting various existing modes, such as a displacement sensor and the like. The bracket main body 20 of the embodiment is provided with a second optical coupler sensor 28, and the movable bracket 24 is provided with a second light blocking sheet 29 used for being matched with the second optical coupler sensor 28. The number of the second photo-coupler sensors 28 is two, and the two second photo-coupler sensors 28 are respectively used for detecting two position states of the sample tube placing plate 21 in and out of the warehouse. The inlet and outlet rail 23 and the linear rail 41 of the embodiment are parallel to each other.

Furthermore, in order to improve the heating effect on the sample, a support heating film can be arranged in the support component, and a heat insulation structure is arranged at the same time. In this embodiment, the movable rack 24 is provided with the sample rack 30 moving synchronously with the movable rack 24, the sample tube placing plate 22 is provided on the sample rack 30, the rack heating film located below the sample tube placing plate 21 is provided on the sample rack 30, and the sample rack 30 is made of a heat insulating material, so that the sample rack 30 is separately provided on the movable rack 24 and the sample rack 30 is made of a heat insulating material, which can reduce the usage amount of the heat insulating material, save the cost, and simultaneously meet the technical purposes of heating the sample and placing the heat diffusion.

Specifically, as shown in fig. 4, the thermal cover assembly of the present embodiment includes a thermal cover 10. In this case, the thermal cover 10 may be slidably engaged with the opening/closing guide 22, and the guide shaft and the bearing 18 may be provided on the thermal cover 10, that is, the thermal cover 10 may be directly driven to move relative to the sample tube mounting plate 21 to open and close under the guiding action of the thermal cover rail 42, but a rubber pad or the like may be provided on the bottom surface of the thermal cover 10 to avoid a rigid collision between the thermal cover 10 and the sample tube mounting plate 21, which will not be described in detail. In order to improve the heating effect on the sample, the heat cover 10 can be divided into a heat cover plate 14 and a heat cover insulation plate 15 located above the heat cover plate 14, a heat cover heating film is arranged between the heat cover plate 14 and the heat cover insulation plate 15, the heat generated by the heat cover heating film heats the sample placed on the sample tube placing plate 21 through the heat cover plate 14, and meanwhile, the heat cover insulation plate 15 can prevent the heat from diffusing to influence other components. The interior of the hot cover 10 is also provided with a temperature sensor 16 for measuring the temperature of the hot cover plate 14 and an over-temperature protection switch arranged on a heating circuit of the hot cover heating film, so that the real-time monitoring of the temperature of the hot cover plate 14 is realized, and when the temperature of the hot cover plate 14 is too high, the heating circuit is automatically cut off by the over-temperature protection switch, and the over-temperature protection function is realized. At this time, the heat cover insulating board 15 is slidably engaged with the opening/closing guide 22, and the guide shaft and the bearing 18 are provided on the heat cover insulating board 15.

Of course, as shown in fig. 4, in this embodiment, the heat cover assembly further includes a heat cover upper frame 11 located above the heat cover 10, a heat cover guide rod 12 is disposed between the heat cover 10 and the heat cover upper frame 11, one end of the heat cover guide rod 12 is fixedly connected to the heat cover 10, and the other end of the heat cover guide rod 12 is in sliding fit with the heat cover upper frame 11, a spring 13 located between the heat cover 10 and the heat cover upper frame 11 is sleeved on the heat cover guide rod 12, in this embodiment, the heat cover upper frame 11 is in sliding fit with two opening and closing guide rods 22, and a linear bearing 19 engaged with the opening and closing guide rods 22 is disposed on the heat cover upper frame 11. The guide shafts and bearings 18 are both disposed on the hot lid upper frame 11, i.e., the hot lid assembly of the present embodiment is engaged with the hot lid track 42 through the hot lid upper frame 11. Under the driving action of the thermal cover upper frame 11 moving along the opening and closing guide rods 12, the thermal cover 10 can be driven to move relative to the sample tube placing plate 21, that is, the thermal cover 10 can be driven to cover the sample tube placing plate 21 or be opened from the sample tube placing plate 21. By arranging the thermal cover guide rod 12 between the thermal cover upper frame 11 and the thermal cover 10 and arranging the spring 13 on the thermal cover guide rod 12, not only can rigid collision between the thermal cover 10 and the sample tube placing plate 21 be avoided, but also when the thermal cover upper frame 11 moves downward relative to the frame body 20 along the opening and closing guide rod 22, after the thermal cover 10 contacts the sample tube placing plate 21, the thermal cover 10 can be driven to continuously move downward and compress the spring 13, the thermal cover 10 is pressed and fixed on the sample tube placing plate 21 by the elastic force of the spring 13, and the thermal cover 10 and the sample tube placing plate 21 can be pressed and fixed in a self-adaptive manner. In this embodiment, the sample tube placing plate 21 is placed horizontally, and the opening and closing guide rod 22 is located in a vertical direction, that is, in this embodiment, the thermal cover guide rod 12 and the opening and closing guide rod 22 are parallel to each other, and the opening and closing guide rod 22 and the linear rail 41 are perpendicular to each other.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a full-automatic PCR fluorescence quantitative analysis appearance hot lid module which characterized in that: the sample tube placing device comprises a heat cover assembly and a bracket assembly, wherein the bracket assembly comprises a bracket main body (20), a sample tube placing plate (21) is installed on the bracket main body (20), and the heat cover assembly is arranged above the sample tube placing plate (21); the bracket main body (20) is provided with opening and closing guide rods (22) which are respectively positioned at two sides of the sample tube placing plate (21), and the hot cover component is in sliding fit with the opening and closing guide rods (22);

and a thermal cover opening and closing mechanism for driving the thermal cover assembly to move along the opening and closing guide rod (22) to cover on the sample tube placing plate (21) or open from the sample tube placing plate (21).

2. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 1, wherein: the hot cover opening and closing mechanism comprises a linear track (41) for guiding the support main body (20) to move, a hot cover track (42) for guiding the hot cover assembly to move and a linear driving mechanism for driving the support main body (20) to move along the linear track (41);

the hot cover track (42) comprises a hot cover track section (42 a) and a hot cover track section (42 b) which are parallel to the linear track (41), the distance between the hot cover track section (42 a) and the linear track (41) is larger than the distance between the hot cover track section (42 b) and the linear track (41), and a connecting section (42 c) is arranged between the hot cover track section (42 a) and the hot cover track section (42 b) to be communicated;

when the heat cover assembly is positioned on a section (42 a) of the heat cover track, the heat cover assembly is positioned above the sample tube positioning plate (21); when the thermal cover assembly is positioned on the thermal cover track segment (42 b), the thermal cover assembly covers the sample tube placement plate (21).

3. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 2, wherein: and a support position detection assembly for detecting the moving position of the support main body (20) on the linear track (41) is arranged between the support main body (20) and the linear track (41).

4. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 2, wherein: the linear driving mechanism comprises a first belt wheel (45) and a second belt wheel (46) which are respectively positioned at two ends of the linear track (41), a transmission belt (47) is sleeved between the first belt wheel (45) and the second belt wheel (46), the transmission belt (47) is fixedly connected with the support main body (20), and the linear driving mechanism further comprises a driving motor (48) which is used for driving the first belt wheel (45) or the second belt wheel (46) to rotate.

5. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 2, wherein: guide plates (49) are respectively arranged on two sides of the support main body (20), and the linear track (41) and the hot cover track (42) are respectively arranged on the guide plates (49); or guide plates (49) are respectively arranged on two sides of the support main body (20), a bottom plate is arranged below the guide plates, the linear track (41) is arranged on the bottom plate, and the hot cover track (42) is arranged on the guide plates (49).

6. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 5, wherein: the hot cover track (42) is a guide groove formed in the guide plate (49), and a guide shaft matched with the guide groove is arranged on the hot cover assembly.

7. The thermal cover module of the fully automatic PCR fluorescent quantitative analyzer according to claim 6, wherein: and a bearing (18) in rolling fit with the guide groove is arranged on the guide shaft.

8. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 1, wherein: the hot cover component is provided with a linear bearing (19) matched with the opening and closing guide rod (22).

9. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 2, wherein: the opening and closing guide rod (22) is perpendicular to the linear track (41).

10. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 2, wherein: the angle between the connecting section (42 c) and the hot lid track section (42 a) is 110-150 °.

11. The fully automatic PCR fluorescence quantitative analyzer thermal cover module according to any one of claims 1 to 10, wherein: be equipped with on support main part (20) and pass in and out storehouse track (23) and with pass in and out storehouse track (23) sliding fit's movable support (24), sample tube is placed board (21) and is installed on movable support (24), be equipped with on support main part (20) and be used for the drive movable support (24) along pass in and out storehouse track (23) remove in order to drive sample tube is placed board (21) and is followed heat cap subassembly below is stretched out or is retracted to pass in and out storehouse actuating mechanism below the heat cap subassembly.

12. The thermal cover module of the fully automatic PCR fluorescence quantitative analyzer according to claim 11, wherein: the warehouse inlet and outlet driving mechanism comprises a threaded screw rod (25) parallel to the warehouse inlet and outlet rail (23), a nut seat (26) in threaded fit with the threaded screw rod (25) is arranged on the movable support (24), and a screw rod motor (27) used for driving the threaded screw rod (25) to rotate is installed on the support main body (20).

13. The thermal cover module of the fully automatic PCR fluorescence quantitative analyzer according to claim 12, wherein: a warehouse in and out position detection assembly used for detecting the moving position of the movable support (24) is arranged between the movable support (24) and the support main body (20).

14. The thermal cover module of the fully automatic PCR fluorescence quantitative analyzer according to claim 11, wherein: the movable support (24) is provided with a sample support (30) which moves synchronously with the movable support, the sample tube placing plate (21) is arranged on the sample support (30), a support heating film positioned below the sample tube placing plate (21) is arranged on the sample support (30), and the sample support (30) is made of a heat insulating material.

15. The thermal cover module of the fully automatic PCR quantitative fluorescence analyzer according to claim 11, wherein: the hot cover opening and closing mechanism comprises a linear track (41) for guiding the support main body (20) to move, a hot cover track (42) for guiding the hot cover assembly to move and a linear driving mechanism for driving the support main body (20) to move along the linear track (41); the warehouse inlet and outlet rail (23) is parallel to the linear rail (41).