A feeding mechanism and a polymerase chain reaction device

Abstract

The application discloses a feeding mechanism and a polymerase chain reaction device, and relates to the technical field of biology detection and analysis. The feeding mechanism comprises a bottom plate, a support slidingly arranged on the bottom plate, a lifting assembly rotatably arranged on the support, a driving assembly connected to the lifting assembly and used for driving the lifting assembly, a sliding arm, a chip tray connected to the end of the sliding arm, a sliding channel extending in a vertical direction and arranged below the chip tray, and the sliding arm is located in the sliding channel. The driving assembly moves linearly in a horizontal direction. After the chip tray is driven by the lifting assembly to move from a test position to a removal position in a vertical direction, the support, the lifting assembly and the chip tray are collectively horizontally slid on the bottom plate to a discharge position. The feeding mechanism can drive the chip tray to move in a vertical direction and a horizontal direction through the lifting assembly by linear movement of the driving assembly in the horizontal direction, and the structure is simple and easy to control.

Description

Technical Field

[0001] The present invention relates to the technical field of biological detection and analysis, and in particular to a feeding mechanism and a polymerase chain reaction device. Background Art

[0002] PCR (Polymerase Chain Reaction) technology is a molecular biology technique that amplifies specific DNA sequences in vitro. It has the characteristics of strong specificity, low purity requirements, simplicity and speed, and is widely used in molecular biology detection and analysis.

[0003] PCR devices using PCR technology have an L-shaped layout with test, removal, and discharge positions. Therefore, loading and unloading require the chipset to be moved horizontally and vertically. Existing PCR devices require at least two motors with a complex transmission mechanism to achieve bidirectional motion, resulting in a complex mechanism and a high risk of mechanical failure or jamming. Summary of the Invention

[0004] The object of the present invention is to provide a loading mechanism and a polymerase chain reaction device, which can move a chip tray at a fixed point in the horizontal direction and the vertical direction and have a simple structure.

[0005] The embodiment of the present invention is achieved as follows:

[0006] An embodiment of the present invention provides a loading mechanism, including a base plate and a bracket slidingly arranged on the base plate, a lifting assembly rotatably arranged on the bracket, a driving assembly for driving the lifting assembly connected to the lifting assembly, the lifting assembly including a sliding arm, the end of the sliding arm being connected to a chip tray, a slide extending vertically is arranged below the chip tray, and the sliding arm is located in the slide; the driving assembly moves linearly in the horizontal direction, and the lifting assembly drives the chip tray to move vertically from the test position to the removal position, and then drives the bracket, the lifting assembly and the chip tray to slide horizontally on the base plate to the unloading position.

[0007] Optionally, the lifting assembly also includes a first connecting rod, a second connecting rod and a third connecting rod whose ends are rotatably connected to one point, the other end of the first connecting rod is rotatably connected to the bracket, the other end of the second connecting rod is rotatably connected to the end of the sliding arm, and the other end of the third connecting rod is rotatably connected to the driving assembly.

[0008] Optionally, a first linear guide rail is provided on the bracket, a plurality of first sliding blocks spaced apart in a horizontal direction are provided on the bottom plate, and the first linear guide rail is slidably connected to the first sliding blocks.

[0009] Optionally, the support and the lifting assembly each comprise two, and the two lifting assemblies are rotationally connected with the two supports respectively, and the sliding arms of the two lifting assemblies are connected with the two ends of the chip tray respectively.

[0010] Optionally, the driving assembly comprises a linear motor, and an output end of the linear motor is rotationally connected with the lifting assembly.

[0011] Optionally, the bottom plate is provided with a lead screw and a nut threadedly matched with the lead screw, the lead screw is located between the two supports, the nut is provided with a guide frame, opposite two guide arms of the guide frame are provided with second sliding blocks respectively, the supports are provided with second linear guides, and the two second linear guides are slidably connected with the two second sliding blocks respectively.

[0012] The embodiment of the present application also provides a polymerase chain reaction device comprising a frame and a feeding mechanism as any one of the above connected with the frame.

[0013] Optionally, the frame comprises a bottom loading plate and a support plate arranged on the side of the bottom loading plate, the support plate is provided with a slide way extending in the vertical direction, the support plate is fixedly connected with the support of the feeding mechanism, the sliding arm of the lifting assembly of the feeding mechanism is arranged in the slide way, the bottom loading plate is connected with the sliding arm and used for bearing the chip tray of the feeding mechanism.

[0014] Optionally, the side of the support plate is provided with a limiting boss, and the lifting assembly is abutted with the limiting boss when the chip tray moves to the moving-out position.

[0015] Optionally, the support plate is provided with a third linear guide, the side of the bottom loading plate is provided with a third sliding block, and the third linear guide is slidably connected with the third sliding block.

[0016] The beneficial effects of the embodiment of the present application include:

[0017] The feeding mechanism provided by the embodiment of the present application comprises a bottom plate and a support slidably arranged on the bottom plate, the support is rotationally provided with a lifting assembly, the lifting assembly is connected with a driving assembly used for driving the lifting assembly, the lifting assembly comprises a sliding arm, the end of the sliding arm is connected with a chip tray, the bottom of the chip tray is provided with a slide way extending in the vertical direction, and the sliding arm is located in the slide way; the driving assembly moves linearly in the horizontal direction, after the chip tray is driven by the lifting assembly to move from the testing position to the moving-out position in the vertical direction, the support, the lifting assembly and the chip tray are collectively horizontally slid on the bottom plate to the unloading position. The feeding mechanism can drive the chip tray to move in the vertical direction and the horizontal direction through the lifting assembly by linear movement of the driving assembly in the horizontal direction, and the structure is simple and easy to control. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0019] Figure 1 The structure schematic view of the feeding mechanism provided by the embodiment of the present application when the chip tray is in the detection position;

[0020] Figure 2 The structure schematic view of the feeding mechanism provided by the embodiment of the present application when the chip tray is in the detection position;

[0021] Figure 3 The structure schematic view of the feeding mechanism provided by the embodiment of the present application when the chip tray is in the detection position;

[0022] Figure 4 The driving principle diagram of the feeding mechanism provided by the embodiment of the present application;

[0023] Figure 5 The structure schematic view of the polymerase chain reaction device provided by the embodiment of the present application.

[0024] Figure: 100-feeding mechanism; 110-bottom plate; 120-bracket; 130-lifting assembly; 131-first connecting rod; 132-second connecting rod; 133-third connecting rod; 134-rotation connecting point; 140-chip tray; 150-driving assembly; 161-first linear guide rail; 162-first sliding block; 171-screw; 172-nut; 173-guiding frame; 1731-guiding arm; 174-second sliding block; 175-second linear guide rail; 210-test position; 220-removing position; 300-polymerase chain reaction device; 310-frame; 311-bottom carrier plate; 312-supporting plate; 3121-slide; 321-third linear guide rail; 322-third sliding block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained based on the embodiments of the application by those of ordinary skill in the art without creative effort fall within the scope of the application.

[0027] It should be noted that similar reference numbers and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0028] In the description of the application, it should be noted that the terms "upper", "lower", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical", and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "linked" should be broadly understood, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or connected between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0031] Please refer to Figures 1 to 4The embodiment of the present application provides a loading mechanism 100, including a base plate 110 and a bracket 120 slidably arranged on the base plate 110, a lifting assembly 130 is rotatably arranged on the bracket 120, and a driving assembly 150 for driving the lifting assembly 130 is connected to the lifting assembly 130, and the lifting assembly 130 includes a sliding arm (not shown in the figure), the end of the sliding arm is connected to the chip tray 140, and a vertically extending slide 3121 is provided below the chip tray 140, and the sliding arm is located in the slide 3121; the driving assembly 150 moves linearly in the horizontal direction, and the lifting assembly 130 drives the chip tray 140 to move vertically from the test position 210 to the removal position 220, and then drives the bracket 120, the lifting assembly 130 and the chip tray 140 to slide horizontally on the base plate 110 to the unloading position.

[0032] The loading mechanism 100 has a testing position 210, a removal position 220, and a discharge position. The testing position 210 and the removal position 220 are arranged vertically, with the testing position 210 located above the removal position 220. The removal position 220 and the discharge position are arranged horizontally, with the discharge position located on the side of the removal position 220 away from the drive assembly 150. Under the control of the drive assembly 150, the lifting assembly 130 drives the chip tray 140 to move between the testing position 210, the removal position 220, and the discharge position.

[0033] Specifically, the drive assembly 150 moves horizontally toward the discharge position (i.e. Figure 4 The lifting assembly 130 is driven to move linearly in the direction A of the lifting assembly 130, and the sliding arm of the lifting assembly 130 is driven to move downward, so that the chip tray 140 is lowered from the test position 210 to the removal position 220. When the chip tray 140 is at the removal position 220, the lifting assembly 130 is stuck, and no relative rotation occurs between the bracket 120 and the chip tray 140. After that, the driving assembly 150 continues to move in the direction (i.e. Figure 4 A direction in the figure) can drive the bracket 120, the lifting assembly 130 and the chip tray 140 (i.e. Figure 4 The chip tray 140 and the chip tray 140 are moved horizontally to the unloading position. At the unloading position, the chip tray 140 can be replaced as a whole, or the multiple chips on the chip tray 140 can be replaced separately. After the unloading and loading are completed, the driving assembly 150 moves horizontally away from the unloading position (i.e. Figure 4 B direction) to move linearly, pull the lifting assembly 130, so that the bracket 120, the lifting assembly 130 and the chip tray 140 (ie Figure 4 The portion in the dotted line frame) moves together in the horizontal direction to the moving-out position 220, after which the driving assembly 150 continues to move in the direction (ie Figure 4 The sliding arm of the lifting assembly 130 is driven to move upward, so that the chip tray 140 rises from the moving-out position 220 to the testing position 210.

[0034] It should be noted that the structure of the lifting assembly 130 and the driving assembly 150, the connection mode and the connection position between the two are not limited in the embodiment, as long as the above-mentioned transfer process of the chip tray 140 can be realized. In addition, in the embodiment, the way in which the lifting assembly 130 is stuck in the moving-out position 220 is not limited, and the lifting assembly 130 can be stuck by using the slide 3121, or a limiting boss is arranged to make the lifting assembly 130 abut against the limiting boss when moving in the moving-out position 220 to achieve sticking.

[0035] The above-mentioned feeding mechanism 100 can drive the chip tray 140 to move in the vertical direction and the horizontal direction by the lifting assembly 130 through the linear movement of the driving assembly 150 in the horizontal direction, and the structure is simple and easy to control.

[0036] Optionally, in an implementable manner of the embodiment of the application, the lifting assembly 130 further comprises a first connecting rod 131, a second connecting rod 132 and a third connecting rod 133 rotatably connected to one point, one end of the first connecting rod 131 is rotatably connected to the support 120, the other end of the second connecting rod 132 is rotatably connected to the end of the sliding arm, and the other end of the third connecting rod 133 is rotatably connected to the driving assembly 150.

[0037] One end of the first connecting rod 131, the second connecting rod 132 and the third connecting rod 133 is hinged together to form a rotating connection point 134, and the first connecting rod 131, the second connecting rod 132 and the third connecting rod 133 can rotate relative to each other to avoid the feeding mechanism 100 from being stuck. The other end of the first connecting rod 131 is rotatably connected to the support 120 to fix the lifting assembly 130 on the support 120, the other end of the second connecting rod 132 is rotatably connected to the sliding arm, and the other end of the third connecting rod 133 is rotatably connected to the driving end of the driving assembly 150. The driving assembly 150 moves linearly in the horizontal direction, and changes the position of the rotating connection point 134 through the third connecting rod 133. Since the other end of the second connecting rod 132 is connected to the sliding arm, and the sliding arm is limited in the slide 3121, therefore, the driving assembly 150 can drive the sliding arm to move in the vertical direction in the slide 3121 through the third connecting rod 133 and the second connecting rod 132. When the sliding arm drives the chip tray 140 to move to the moving-out position 220, the lifting assembly 130 is stuck, that is, the first connecting rod 131, the second connecting rod 132 and the third connecting rod 133 no longer rotate, at this time, the driving assembly 150 continues to move linearly in the horizontal direction, that is, the transfer of the support 120, the lifting assembly 130 and the chip tray 140 between the moving-out position 220 and the unloading position is realized.

[0038] It can be understood that the sliding arm is arranged perpendicularly to the first connecting rod 131 and the second connecting rod 132, that is, the sliding arm extends into the slide 3121 in the horizontal direction and slides in the vertical direction. In addition, it should be noted that the manner of locking the lifting assembly 130 in the moving-out position 220 is not limited in the embodiment, and the sliding arm is just abutted against the lower end of the slide 3121 when the chip tray 140 is located in the moving-out position 220, the end of the slide 3121 limits the sliding arm to lock the lifting assembly 130, or a limiting boss is arranged on the side of the slide 3121, and the end of the second connecting rod 132 away from the sliding arm is just moved to the limiting boss and abutted against the limiting boss when the chip tray 140 is located in the moving-out position 220, the limiting boss and the slide 3121 jointly limit the second connecting rod 132 to lock the lifting assembly 130, at this time, the driving assembly 150 continues to move in the horizontal direction towards the unloading position, that is, the support 120, the lifting assembly 130 and the chip tray 140 are collectively pushed to the unloading position.

[0039] Optionally, in an implementable manner of the embodiment of the present application, the driving assembly 150 comprises a linear motor, and the output end of the linear motor is rotationally connected with the lifting assembly 130. When the linear motor works, the output end thereof moves linearly in the horizontal direction, thereby driving the lifting assembly 130 to move.

[0040] Optionally, in an implementable manner of the embodiment of the present application, the support 120 is provided with a first linear guide rail 161, and the bottom plate 110 is provided with a plurality of first sliding blocks 162 which are distributed in the horizontal direction at intervals, and the first linear guide rail 161 is slidably connected with the first sliding blocks 162.

[0041] The plurality of first sliding blocks 162 are sequentially fixed on the bottom plate 110 in the horizontal direction, and the first linear guide rail 161 on the support 120 is slidably connected with the plurality of first sliding blocks 162, and it can be understood that the extension direction of the first linear guide rail 161 and the sequential arrangement direction of the plurality of first sliding blocks 162 are parallel to the movement direction of the driving assembly 150, when the driving assembly 150 drives the support 120, the lifting assembly 130 and the chip tray 140 to move collectively, the support 120 is slid on the bottom plate 110 through the first linear guide rail 161 and the first sliding blocks 162, and the first sliding blocks 162 guide the support 120, so that the movement of the support 120, the lifting assembly 130 and the chip tray 140 is more stable and accurate.

[0042] Optionally, in an implementable manner of the embodiment of the present application, the support 120 and the lifting assembly 130 each comprise two, the two lifting assemblies 130 are rotationally connected with the two supports 120 respectively, and the sliding arms of the two lifting assemblies 130 are connected with the opposite ends of the chip tray 140 respectively.

[0043] The driving assembly 150 drives the two lifting assemblies 130 to move simultaneously, and then the sliding arms of the two lifting assemblies 130 simultaneously apply force to the chip tray 140 on both sides of the chip tray 140, so that the chip tray 140 is more balanced and moves more smoothly.

[0044] Please refer to Figure 1 and Figure 3 Optionally, in an implementable manner of the embodiment of the present application, the bottom plate 110 is provided with a lead screw 171 and a nut 172 threadedly matched with the lead screw 171, the lead screw 171 is located between the two supports 120, the nut 172 is provided with a guide frame 173, the two opposite guide arms 1731 of the guide frame 173 are respectively provided with a second sliding block 174, and the support 120 is provided with a second linear guide rail 175, and the two second linear guide rails 175 are respectively connected with the two second sliding blocks 174 in sliding mode.

[0045] The cooperation of the lead screw 171 and the nut 172 converts the rotary motion into linear motion, at the same time, the lead screw 171 can provide high-precision motion control, has high transmission stability and good mute effect. In addition, the lead screw 171 can realize transmission of large load, and can provide sufficient support force for the lifting assembly 130 when the lifting assembly 130 performs a lifting action.

[0046] Please refer to Figure 5 The embodiment also provides a polymerase chain reaction device 300, which comprises a frame 310 and a feeding mechanism 100 according to any one of the above embodiments connected with the frame 310.

[0047] The polymerase chain reaction device 300 comprises the same structure and beneficial effects as the feeding mechanism 100 in the foregoing embodiments. The structure and beneficial effects of the feeding mechanism 100 have been described in detail in the foregoing embodiments, and will not be described here again.

[0048] Optionally, in an implementable manner of the embodiment of the present application, the frame 310 comprises a bottom carrier plate 311 and a support plate 312 arranged on the side of the bottom carrier plate 311, the support plate 312 is provided with a slide 3121 extending in the vertical direction, the support plate 312 is fixedly connected with the support 120 of the feeding mechanism 100, the sliding arm of the lifting assembly 130 of the feeding mechanism 100 is arranged in the slide 3121, and the bottom carrier plate 311 is connected with the sliding arm and used for carrying the chip tray 140 of the feeding mechanism 100.

[0049] The support plate 312 is fixed on the support 120, and a slide 3121 extending in the vertical direction is arranged on the support plate 312. The sliding arm of the lifting assembly 130 is arranged horizontally and connected with the bottom loading plate 311 after passing through the slide 3121. The bottom loading plate 311 carries the chip tray 140 of the feeding mechanism 100. The driving assembly 150 of the feeding mechanism 100 drives the sliding arm to move in the vertical direction in the slide 3121. The sliding arm can drive the chip tray 140 to move through the bottom loading plate 311.

[0050] For example, the support 120 and the lifting assembly 130 of the feeding assembly each include two. The bottom loading plate 311 is in a U shape. The sliding arms of the two lifting assemblies 130 are connected with the two opposite sides of the bottom loading plate 311 respectively to drive the chip tray 140 to move.

[0051] For example, the support 120 and the lifting assembly 130 of the feeding assembly each include two. The bottom loading plate 311 is in a U shape. The sliding arms of the two lifting assemblies 130 are connected with the two opposite sides of the bottom loading plate 311 respectively to drive the chip tray 140 to move. Figure 2 Optionally, in an implementable manner of the embodiment of the present application, the support plate 312 is provided with a third linear guide rail 321, and the side of the bottom loading plate 311 is provided with a third sliding block 322. The third linear guide rail 321 is in sliding connection with the third sliding block 322.

[0052] The support plate 312 is fixed on the support 120, and a slide 3121 extending in the vertical direction is arranged on the support plate 312. The sliding arm of the lifting assembly 130 is arranged horizontally and connected with the bottom loading plate 311 after passing through the slide 3121. The bottom loading plate 311 carries the chip tray 140 of the feeding mechanism 100. The driving assembly 150 of the feeding mechanism 100 drives the sliding arm to move in the vertical direction in the slide 3121. The sliding arm can drive the chip tray 140 to move through the bottom loading plate 311.

[0053] For example, the third linear guide rail 321 includes two linear guide rails arranged in parallel. The two third linear guide rails 321 are symmetrically arranged on the support plate 312 with respect to the center line of the support plate 312. Correspondingly, the third sliding block 322 on one side of the bottom loading plate 311 also includes two third sliding blocks. The two third sliding blocks 322 are symmetrically arranged on the side of the bottom loading plate 311 with respect to the center line of the side. The two third sliding blocks 322 are in sliding connection with the two third linear guide rails 321 respectively to further improve the stability of the movement of the bottom loading plate 311.

[0054] Optionally, in an implementable manner of the embodiment of the present application, the side of the support plate 312 is provided with a limiting boss. When the chip tray 140 moves to the moving-out position 220, the lifting assembly 130 abuts against the limiting boss.

[0055] The limiting boss is located at the side of the slide 3121, when the chip tray 140 is located at the moving-out position 220, the lifting assembly 130 just moves to the limiting boss and abuts against the limiting boss, the limiting boss and the slide 3121 jointly limit the lifting assembly 130, so that the lifting assembly 130 is stuck, at this time, the driving assembly 150 continues to move in the horizontal direction towards the unloading position, so that the support 120, the lifting assembly 130 and the chip tray 140 are jointly pushed to the unloading position.

[0056] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A feeding mechanism, characterized by, The device comprises a base plate and a support slidingly arranged on the base plate, a lifting assembly is rotatably arranged on the support, a driving assembly for driving the lifting assembly is connected to the lifting assembly, the lifting assembly comprises a sliding arm, a chip tray is connected to the end of the sliding arm, a slide extending in the vertical direction is arranged below the chip tray, and the sliding arm is located in the slide; the driving assembly moves linearly in the horizontal direction, after the chip tray is driven by the lifting assembly to move from the testing position to the removal position in the vertical direction, the support, the lifting assembly and the chip tray are collectively horizontally slid on the base plate to the unloading position; The lifting assembly further comprises a first connecting rod, a second connecting rod and a third connecting rod rotatably connected to a point, the other end of the first connecting rod is rotatably connected to the support, the other end of the second connecting rod is rotatably connected to the end of the sliding arm, and the other end of the third connecting rod is rotatably connected to the driving assembly; The support is provided with a first linear guide rail, and the base plate is provided with a plurality of first sliding blocks distributed in the horizontal direction, the first linear guide rail is in sliding connection with the first sliding blocks. The support and the lifting assembly each comprise two, two lifting assemblies are rotatably connected to two supports respectively, and the sliding arms of the two lifting assemblies are connected to the opposite ends of the chip tray respectively.

2. The feeding mechanism according to claim 1, wherein The driving assembly comprises a linear motor, and the output end of the linear motor is rotatably connected to the lifting assembly.

3. The feeding mechanism according to claim 1, wherein The base plate is provided with a lead screw and a nut in threaded cooperation with the lead screw, the lead screw is located between the two supports, the nut is provided with a guide frame, opposite two guide arms of the guide frame are respectively provided with second sliding blocks, the support is provided with a second linear guide rail, and two second linear guide rails are respectively in sliding connection with two second sliding blocks.

4. A polymerase chain reaction device, characterized by, The device comprises a frame and a feeding mechanism as claimed in any one of claims 1 to 3 connected to the frame.

5. The polymerase chain reaction device of claim 4, wherein, The frame comprises a bottom carrier plate and a support plate arranged on the side of the bottom carrier plate, the support plate is provided with a slide extending in the vertical direction, the support plate is fixedly connected with the support of the feeding mechanism, the sliding arm of the lifting assembly of the feeding mechanism is arranged in the slide, the bottom carrier plate is connected with the sliding arm and used for carrying the chip tray of the feeding mechanism.

6. The polymerase chain reaction device of claim 5, wherein, The side of the support plate is provided with a limiting boss, the lifting assembly abuts against the limiting boss when the chip tray moves to the removal position.

7. The polymerase chain reaction device of claim 5, wherein, The support plate is provided with a third linear guide rail, the side of the bottom carrier plate is provided with a third sliding block, and the third linear guide rail is in sliding connection with the third sliding block.

Images