Automatic buckling heat cover device and reaction tank system

Abstract

The utility model provides an automatic buckling heat cover device and a reaction tank system, which comprise a heat cover assembly swinging between a cover opening position and a cover closing position; the driving device comprises a driving motor, a connecting rod mechanism and a guide shaft, the hot cover assembly is fixed to the guide shaft, the input end of the connecting rod mechanism is connected with an output shaft of the driving motor, and the output end of the connecting rod mechanism is connected with the guide shaft. On the basis of the prior art, the driving device is additionally arranged, the connecting rod mechanism is driven by the driving motor to act, and the connecting rod mechanism drives the guide shaft to rotate. The hot cover assembly is fixed on the guide shaft, and when the guide shaft rotates, the hot cover assembly is driven to swing between the cover opening position and the cover closing position, so that the hot cover assembly can be stopped at the cover opening position and the cover closing position by utilizing the position where the driving motor stops outputting the torque, the action of the hot cover assembly is controlled, the labor intensity of experimenters is reduced, and the working efficiency is improved. The effects of saving time and labor and improving the automation degree are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of biological detection, and particularly relates to an automatic buckling hot cover device and a reaction pool system. Background Art

[0002] Gene amplification technology, also known as cell-free molecular cloning system or specific DNA (DeoxyriboNucleic Acid) sequence in vitro primer-directed enzymatic amplification method, is a major innovation in gene amplification technology. It can specifically amplify extremely small amounts of target DNA by millions of times, thereby greatly improving the ability to analyze and detect DNA molecules. It can detect single-molecule DNA or samples containing only one target DNA molecule per 100,000 cells. Therefore, this method was immediately widely used and rapidly developed in many fields such as molecular biology, microbiology, medicine and genetics. Due to the advantages of high sensitivity, strong specificity, rapidity and simplicity of PCR (Polymerase Chain Reaction), it has shown great application value and broad development prospects in the field of pathogenic microbiology.

[0003] During the PCR gene amplification process, the reaction tube needs to be placed in a reaction pool for heating. The temperature of the reaction pool will undergo repetitive rapid changes. An experiment usually requires multiple temperature cycles to complete. Therefore, when the reaction pool heats the liquid in the reaction tube, the liquid will evaporate to the top of the reaction tube due to the high temperature to form condensed water, affecting the experimental results.

[0004] In order to avoid the formation of condensed water, a hot cover assembly is usually used to press and heat the top of the reaction tube so that the liquid in the reaction tube will no longer condense. However, the hot cover assembly needs to be manually turned over, pressed and heated, which is time-consuming and labor-intensive, and the degree of automation is not high.

[0005] Therefore, how to enable the hot cover assembly to be automatically pressed together to save time and effort and improve the degree of automation is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide an automatic buckling hot cover device, so that the hot cover assembly can be automatically pressed together, so as to save time and labor and improve the degree of automation;

[0007] Another object of the utility model is to provide a reaction pool system having the automatic fastening hot cover device.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] An automatic closing hot cover device, comprising:

[0010] a thermal cover assembly swinging between an open cover position and a closed cover position, and when the thermal cover assembly is in the closed cover position, it is used to heat the top of the reaction tube, and when it is in the open cover position, it avoids the reaction tube so that the reaction tube can be taken and placed;

[0011] The driving device comprises a driving motor, a connecting rod mechanism and a guide shaft, wherein the thermal cover assembly is fixed to the guide shaft, the input end of the connecting rod mechanism is connected to the output shaft of the driving motor, and the output end of the connecting rod mechanism is connected to the guide shaft, and the driving motor drives the guide shaft to rotate around its axis through the connecting rod mechanism to drive the thermal cover assembly to swing between an open cover position and a closed cover position.

[0012] Optionally, in the above-mentioned automatic buckling hot cover device, the connecting rod mechanism includes:

[0013] A toggle rod, one end of which is fixed to the output shaft of the drive motor, and the other end of which is provided with a toggle block;

[0014] A connecting rod, one end of which is fixed on the guide shaft, and a shifting slide groove is provided on the connecting rod, and the shifting block is movably embedded in the shifting slide groove.

[0015] Optionally, in the above-mentioned automatic buckling hot cover device, when the hot cover assembly switches between the cover closing position and the cover opening position, the shift block moves between the two ends of the shifting slide slot, and when the hot cover assembly is in the cover closing position and the cover opening position, the shift block is located at the end of the shifting slide slot.

[0016] Optionally, in the above-mentioned automatic closing thermal cover device, when the thermal cover assembly is in the cover closing position and the cover opening position, the toggle rod is perpendicular to the linkage rod.

[0017] Optionally, in the above-mentioned automatic buckling hot cover device, a rotatable sleeve on the shifting block is provided with a rolling ring, and the rolling ring is rollingly engaged with the shifting slide groove.

[0018] Optionally, in the above-mentioned automatic buckling hot cover device, the guide shaft is rotatably supported on the rotating shaft seat;

[0019] The axial position of the guide shaft is limited on the rotating shaft seat by a retaining spring, and a bushing is arranged between the guide shaft and the rotating shaft seat.

[0020] Optionally, in the above-mentioned automatic closing heat cover device, a first limit sensor and a second limit sensor are also included;

[0021] The output end of the connecting rod mechanism is connected to one end of the guide shaft, and the other end of the guide shaft is provided with a sensor sheet;

[0022] When the first limit sensor is triggered by the sensor sensing sheet, the thermal cover assembly is in the closed cover position, and when the second limit sensor is triggered by the sensor sensing sheet, the thermal cover assembly is in the open cover position.

[0023] Optionally, in the above-mentioned automatic buckling hot cover device, the hot cover assembly includes:

[0024] A lower cover, wherein a heat conducting plate is disposed on the lower cover and the heat conducting plate is used to heat the top of the reaction tube;

[0025] A lower cover shell is arranged on the first side of the lower cover, and a position of the lower cover shell corresponding to the heat conducting plate has a heating groove for exposing the heat conducting plate;

[0026] The upper cover is arranged on the second side of the lower cover, and the lower cover shell and the upper cover are made of plastic material.

[0027] Optionally, in the above-mentioned automatic buckling thermal cover device, the outer ring of the heating tank is provided with an outwardly convex shell outer edge, and a thermal insulation plate for placing the reaction tube is provided with a sealing groove outside the placement area of ​​the reaction tube, and when the thermal cover assembly is in the closed cover position, the shell outer edge is embedded in the sealing groove, and a sealing member is provided between the shell outer edge and the sealing groove.

[0028] The automatic buckling hot cover device provided by the utility model adds a driving device on the basis of the prior art, and drives the connecting rod mechanism to move through the driving motor, and the connecting rod mechanism drives the guide shaft to rotate. The hot cover assembly is fixed on the guide shaft, and when the guide shaft rotates, the hot cover assembly is driven to swing between the open cover position and the closed cover position. Therefore, the position where the driving motor stops outputting torque can be used to stop the hot cover assembly at the open cover position and the closed cover position, thereby realizing the control of the hot cover assembly action, reducing the labor intensity of the experimenter, so as to achieve the effect of saving time and labor and improving the degree of automation.

[0029] A reaction cell system, comprising:

[0030] A reaction pool, wherein a heat preservation plate is arranged in the reaction pool, and the reaction tube is arranged on the heat preservation plate;

[0031] A heating component, used for heating the reaction pool, the heating component comprising a heating body and a radiator for dissipating heat from the heating body;

[0032] The automatic buckling heat cover device is the automatic buckling heat cover device as described in any one of the above items, and the automatic buckling heat cover device is arranged on the radiator.

[0033] The reaction pool system provided by the utility model has all the technical effects of the automatic buckling hot cover device, and thus will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of the automatic closing heat cover device at an angle provided by an embodiment of the utility model when it is in the open cover position;

[0036] Figure 2 A schematic diagram of the structure of the automatic closing heat cover device provided by the embodiment of the utility model when it is in the cover opening position at another angle;

[0037] Figure 3 A schematic diagram of the structure of the automatic buckling hot cover device provided by an embodiment of the utility model when it is in the closed cover position;

[0038] Figure 4 A schematic diagram of the structure of the thermal cover assembly provided by the embodiment of the utility model after the upper cover is removed;

[0039] Figure 5 A schematic structural diagram of a portion of the structure of a driving device provided in an embodiment of the utility model.

[0040] The meanings of the reference numerals in the figures are as follows:

[0041] 100-heat cover assembly; 101-upper cover; 102-lower cover shell; 1021-outer edge of shell; 103-lower cover; 104-heat conducting plate;

[0042] 200-Radiator;

[0043] 300-insulation board; 301-sealing groove; 302-sealing element;

[0044] 400-driving device; 401-driving motor; 402-first limit sensor; 403-second limit sensor; 404-linking rod; 4041-sliding slide; 405-sensor sensing sheet; 406-guide shaft; 407-rotating shaft seat; 408-sliding rod; 409-motor seat; 410-sliding block; 411-rolling ring; 412-circlip;

[0045] 500-reaction tube. DETAILED DESCRIPTION

[0046] The core of the utility model is to provide an automatic buckling heat cover device, so that the heat cover assembly can be automatically pressed together, so as to save time and labor and improve the degree of automation;

[0047] Another core of the utility model is to provide a reaction pool system with the above-mentioned automatic buckling hot cover device.

[0048] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] During the PCR gene amplification process, the reaction tube is heated in the reaction pool. The reaction pool is heated by a heating body (usually a semiconductor cooling sheet), and the reaction pool then transfers heat to the reaction tube. Usually, the lower half of the reaction tube is heated by the reaction pool. Since an experiment usually requires multiple temperature cycles to complete, when the reaction pool heats the liquid in the reaction tube, the liquid will evaporate to the top of the reaction tube due to the high temperature to form condensed water, affecting the experimental results.

[0050] In the prior art, in order to prevent condensation water from forming on the top of the reaction tube, a thermal cover assembly is usually added, and the thermal cover assembly is generally fixed by a hinge, so that the thermal cover assembly can be adjusted between an open position and a closed position by swinging. Then, the switch between the open position and the closed position requires manual operation by the experimenter, which is time-consuming and laborious.

[0051] Based on the above situation, if Figure 1-Figure 3 As shown, the embodiment of the utility model discloses an automatic buckling hot cover device, which can use a driving device 400 to realize the opening and closing actions of the hot cover assembly 100 to reduce the labor intensity of the experimenter.

[0052] The automatic buckling hot cover device disclosed in the embodiment of the utility model includes a hot cover assembly 100 and a driving device 400. Among them, the hot cover assembly 100 can swing between the open cover position and the closed cover position. The installation position and installation method of the hot cover assembly 100 on the reaction pool can be the same as the prior art, as long as the hot cover assembly 100 can swing between the open cover position and the closed cover position, so that when the hot cover assembly 100 is in the closed cover position, it can be buckled on the top of the reaction tube 500 to heat the top of the reaction tube 500 to prevent the liquid in the reaction tube 500 from evaporating and rising and then encountering cold and causing condensation reaction. The hot cover assembly 100 heats the top of the reaction tube 500, so that the temperature of the top and bottom of the reaction tube 500 is close to each other, so as to prevent the temperature difference between the top and bottom of the reaction tube 500 from being too large and condensing.

[0053] When the thermal cover assembly 100 is in the open position, it can avoid the reaction tube 500, so that the reaction tube 500 can be easily taken out. Exemplarily, the closed position and the open position of the thermal cover assembly 100 can be spaced 90 degrees apart, that is, the guide shaft 406 (such as Figure 4 The guide shaft 406 can be rotated 90° counterclockwise to switch the thermal cover assembly 100 from the closed position to the open position; the guide shaft 406 can be rotated 90° clockwise to switch the thermal cover assembly 100 from the open position to the closed position. It can be understood by those skilled in the art that the swing angle between the closed position and the open position of the thermal cover assembly 100 may not be set to 90°, and 90° is only an example. Those skilled in the art can set the closed position, the open position, and the angle between the closed position and the open position of the thermal cover assembly 100 according to needs.

[0054] like Figure 4 and Figure 5 As shown, in this embodiment, the driving device 400 may include a driving motor 401, a connecting rod mechanism and a guide shaft 406. Since the speed output by the driving motor 401 is relatively high, a driving motor 401 with a deceleration function may be selected. A connecting rod mechanism is provided between the driving motor 401 and the guide shaft 406. The power transmission function of the connecting rod mechanism may be utilized to facilitate the arrangement of the driving motor 401 and the guide shaft 406 at different positions, which is more conducive to the spatial arrangement of the automatic buckling heat cover device. In addition, the dead point position of the connecting rod mechanism may be utilized to limit the closed cover position and the open cover position of the heat cover assembly 100 (to be described later).

[0055] The heat cover assembly 100 is fixed on the guide shaft 406. When the guide shaft 406 rotates, the heat cover assembly 100 can be driven to swing. The driving motor 401 drives the guide shaft 406 to rotate around its axis through a connecting rod mechanism to drive the heat cover assembly 100 to swing between the open cover position and the closed cover position.

[0056] Specifically, the input end of the connecting rod mechanism is connected to the output shaft of the driving motor 401, and the connection between the input end of the connecting rod mechanism and the output shaft of the driving motor 401 can be realized by welding. Because this transmission needs to transmit a large torque, the welding method can avoid loosening at the connection. The output end of the connecting rod mechanism is connected to the guide shaft 406. For the same reason as above, the output end of the connecting rod mechanism and the guide shaft 406 can also be connected by welding, which can also avoid the occurrence of loose connection. It can be understood by those skilled in the art that the connection between the connecting rod mechanism and the driving motor 401 and the guide shaft 406 can also be achieved by a key method to achieve torque transmission, and is not limited to welding as a connection method.

[0057] The automatic buckling hot cover device provided by the utility model adds a driving device 400 on the basis of the prior art, and drives the connecting rod mechanism to move through the driving motor 401, and the connecting rod mechanism drives the guide shaft 406 to rotate. The hot cover assembly is fixed on the guide shaft 406, and when the guide shaft 406 rotates, the hot cover assembly is driven to swing between the open cover position and the closed cover position. Therefore, the position where the driving motor 401 stops outputting torque can be used to stop the hot cover assembly at the open cover position and the closed cover position, thereby realizing the control of the hot cover assembly action, reducing the labor intensity of the experimenter, and achieving the effect of saving time and labor and improving the degree of automation.

[0058] In a specific embodiment of the present invention, the connecting rod mechanism includes a toggle rod 408 and a connecting rod 404. One end of the toggle rod 408 is fixed to the output shaft of the driving motor 401, and the other end of the toggle rod 408 is provided with a toggle block 410.

[0059] One end of the linkage rod 404 is fixed on the guide shaft 406, and a toggle slot 4041 is provided on the linkage rod 404, and the toggle block 410 is movably embedded in the toggle slot 4041. When the drive motor 401 outputs torque, the toggle rod 408 is driven to swing along the output shaft of the drive motor 401. When the toggle rod 408 swings, the toggle block 410 will toggle the linkage rod 404, so that the linkage rod 404 drives the guide shaft 406 to rotate. Because the toggle rod 408 and the linkage rod 404 are in the process of power transmission, the connection point between the two (i.e., the point where the toggle block 410 acts on the linkage rod 404) will change with the movement of the two.

[0060] In order to prevent the toggle rod 408 and the linkage rod 404 from getting stuck during operation, a toggle slot 4041 is provided on the linkage rod 404. As the toggle block 410 toggle the linkage rod 404 to swing, the toggle block 410 moves along the toggle slot 4041. It can be understood by those skilled in the art that the length of the toggle slot 4041 should be sufficient to allow the thermal cover assembly 100 to switch between the cover-closed position and the cover-opened position, so that when the thermal cover assembly 100 switches between the cover-closed position and the cover-opened position, the toggle rod 408 and the linkage rod 404 will not get stuck.

[0061] Furthermore, when the thermal cover assembly 100 switches between the cover-closed position and the cover-opened position, the shift block 410 moves between the two ends of the shifting slot 4041 , and when the thermal cover assembly 100 is in the cover-closed position and the cover-opened position, the shift block 410 is located at the end of the shifting slot 4041 .

[0062] For example, it can be designed that: when the shift block 410 is located at the first end of the shifting slot 4041 , the thermal cover assembly 100 is in the closed position; when the shift block 410 is located at the second end of the shifting slot 4041 , the thermal cover assembly 100 is in the open position.

[0063] It can also be designed as follows: when the shift block 410 is located at the first end of the shifting slot 4041, the heat cover assembly 100 is in the closed cover position; as the drive motor 401 outputs and rotates, the shift block 410 shifts the linkage rod 404 to swing, and at the same time, the shift block 410 moves from the first end of the shifting slot 4041 to the second end. When the shift block 410 moves to the second end of the shifting slot 4041, the heat cover assembly 100 is in the middle process between the open cover position and the closed cover position, and at this time, the linkage rod 404 and the shift rod 408 are in a straight line. As the drive motor 401 continues to output and rotate, the shift block 410 shifts the linkage rod 404 to swing, and at the same time, the shift block 410 moves from the second end of the shifting slot 4041 to the first end. When the shift block 410 moves to the first end of the shifting slot 4041, the heat cover assembly 100 is in the open cover position.

[0064] That is, in this embodiment, the length of the toggle slot 4041 is designed to just meet the switching of the thermal cover assembly 100 between the closed cover position and the open cover position. That is, when the toggle block 410 is located at the extreme position of the end of the toggle slot 4041, the thermal cover assembly 100 is just located at the closed cover position and the open cover position. In this way, the length of the toggle slot 4041 can be reduced, the strength of the linkage rod 404 can be improved, and the closed cover position and the open cover position of the thermal cover assembly 100 can also be limited by the cooperation of the toggle block 410 and the toggle slot 4041, so as to avoid the movement trajectory of the thermal cover assembly 100 exceeding the closed cover position and the open cover position, thereby preventing the thermal cover assembly 100 from colliding with the surrounding equipment and being damaged.

[0065] It should be noted that it is also permitted to design the length of the toggle slot 4041 to be greater than the standard length, wherein the marked length is the length of the toggle slot 4041 that can just satisfy the switching of the thermal cover assembly 100 between the closed cover position and the open cover position. As long as the length of the toggle slot 4041 can provide sufficient freedom for the toggle block 410 to toggle the linkage rod 404, it is possible to avoid the situation where the toggle block 410 has moved to the end of the toggle slot 4041 before the thermal cover assembly 100 reaches the closed cover position and the open cover position, resulting in the inability to continue the action.

[0066] In order to apply the dead point of the connecting rod mechanism, in this embodiment, when the thermal cover assembly 100 is in the closed cover position and the open cover position, the toggle rod 408 is perpendicular to the connecting rod 404. Figure 3 As shown, when the toggle rod 408 is in a vertical state, the thermal cover assembly 100 is in a closed state. At this time, even if the thermal cover assembly 100 has a large rebound force, because the toggle rod 408 is perpendicular to the connecting rod 404, it is in a dead point state (the force of the connecting rod 404 on the toggle rod 408 generated when the thermal cover assembly 100 rebounds passes through the rotation center of the toggle rod 408 and cannot generate a rotational torque, so the toggle rod 408 cannot be driven to rotate), which will not cause the thermal cover assembly 100 to rebound. Combined with the self-locking property of the driving motor 401, it can be ensured that the thermal cover assembly 100 presses the reaction tube 500 and does not rebound.

[0067] like Figure 1 As shown, when the thermal cover assembly 100 needs to be opened, the toggle rod 408 rotates through the driving motor 401, and the toggle block 410 moves in the toggle slot 4041 of the linkage rod 404, and drives the linkage rod 404 to move, thereby driving the guide shaft 406 to rotate, so that the thermal cover assembly 100 can achieve the opening function. When the thermal cover assembly 100 is in the cover-opening position, because the toggle rod 408 is perpendicular to the linkage rod 404, it is in a dead point state, that is, the force of the linkage rod 404 on the toggle rod 408 generated when the thermal cover assembly 100 is closed passes through the rotation center of the toggle rod 408, and cannot generate an effective rotation torque, so it cannot drive the toggle rod 408 to rotate, so that the thermal cover assembly 100 is stably maintained in the cover-opening position.

[0068] In order to improve the moving effect of the shift block 410 in the shifting slide groove 4041 and reduce the friction between the two during relative movement, in this embodiment, a rolling ring 411 is rotatably sleeved on the shift block 410. Specifically, the rolling ring 411 can be limited on the shift block 410 (the shift block 410 can be a cylindrical structure) by a retaining spring 412. The rolling ring 411 and the shifting slide groove 4041 are in rolling cooperation, so that the force transmission point between the shifting rod 408 and the linkage rod 404 is adjusted from sliding friction to rolling friction, thereby reducing friction and improving the smoothness of movement.

[0069] like Figure 4 As shown, in order to support the guide shaft 406, a rotating shaft seat 407 for supporting the guide shaft 406 can be configured. Usually, two rotating shaft seats 407 should be configured to support the two ends of the guide shaft 406 respectively. The guide shaft 406 can be rotatably supported on the rotating shaft seat 407.

[0070] In order to prevent the guide shaft 406 from moving axially on the rotating shaft seat 407, an axial limiting device can be added, for example, the axial position of the guide shaft 406 can be limited on the rotating shaft seat 407 by a retaining spring, and the retaining spring is used to prevent the guide shaft 406 from moving axially. A bushing is provided between the guide shaft 406 and the rotating shaft seat 407. It can be understood by those skilled in the art that a bearing can also be provided between the guide shaft 406 and the rotating shaft seat 407, as long as the guide shaft 406 can be easily rotated along the rotating shaft seat 407.

[0071] like Figure 2 and Figure 4 As shown, in a specific embodiment of the utility model, the automatic closing heat cover device may further include a first limit sensor 402 and a second limit sensor 403. The output end of the connecting rod mechanism is connected to one end of the guide shaft 406, and the other end of the guide shaft 406 is provided with a sensor sensing sheet 405, which swings with the rotation of the guide shaft 406 so that it can move between the first limit sensor 402 and the second limit sensor 403.

[0072] When the first limit sensor 402 is triggered by the sensor sensing sheet 405 , the thermal cover assembly 100 is in the closed position, and when the second limit sensor 403 is triggered by the sensor sensing sheet 405 , the thermal cover assembly 100 is in the open position.

[0073] The first limit sensor 402 and the second limit sensor 403 may be non-contact position sensors. When the sensor sensing piece 405 swings to the position of the first limit sensor 402, the first limit sensor 402 is triggered (it can be understood that the signal sent by the transmitting end of the first limit sensor 402 cannot be received by the receiving end, thereby being triggered). At this time, the thermal cover assembly 100 is in the closed position, and the controller can be cooperated to control the drive motor 401 to stop outputting torque to keep the thermal cover assembly 100 in the closed position.

[0074] When the sensor sensing piece 405 swings to the position of the second limit sensor 403, the second limit sensor 403 is triggered (it can be understood that the signal sent by the transmitting end of the second limit sensor 403 cannot be received by the receiving end, and is thus triggered). At this time, the thermal cover assembly 100 is in the open cover position, and the controller can be cooperated to control the drive motor 401 to stop outputting torque to keep the thermal cover assembly 100 in the open cover position.

[0075] like Figure 2 and Figure 4 As shown, the heat cover assembly 100 includes a lower cover 103, a lower cover shell 102 and an upper cover 101. A heat conducting plate 104 is disposed on the lower cover 103, and the heat conducting plate 104 is used to heat the top of the reaction tube 500. The heat conducting plate 104 can achieve the heating function by means of electrical heating. Specifically, a groove can be opened in the middle area of ​​the lower cover 103, and the heat conducting plate 104 is disposed in the groove.

[0076] The lower cover shell 102 is disposed on the first side of the lower cover 103 , and a heating groove for exposing the heat conducting plate 104 is provided at a position corresponding to the lower cover shell 102 , so that the heat generated by the heat conducting plate 104 can act on the top of the reaction tube 500 .

[0077] The upper cover 101 is arranged on the second side of the lower cover 103. When the heat cover assembly 100 is in the closed position, the upper cover 101 is located at the uppermost side of the heat cover assembly 100, and the lower cover shell 102 is located at the lowermost side of the heat cover assembly 100. The lower cover 103, the lower cover shell 102 and the upper cover 101 can be fixed by screws or by snap-fitting. The lower cover shell 102 and the upper cover 101 are both made of plastic. The lower cover 103 and the guide shaft 406 are made of metal to ensure that they will not deform when a large downward pressure is provided. The lower cover shell 102 and the upper cover 101 are made of plastic to achieve a heat preservation effect.

[0078] Further, such as Figure 2 As shown, the outer ring of the heating tank is provided with an outwardly convex shell outer edge 1021, and a heat preservation plate 300 is usually provided in the reaction pool. The heat preservation plate 300 has a placement area, and each reaction tube 500 is arranged in an array in the placement area of ​​the heat preservation plate 300.

[0079] In this embodiment, the heat preservation plate 300 for placing the reaction tube 500 is provided with a sealing groove 301 outside the placement area of ​​the reaction tube 500 , and the sealing groove 301 is provided on the heat preservation plate 300 at a position corresponding to the outer edge 1021 of the shell.

[0080] When the thermal cover assembly 100 is in the closed position, the outer edge 1021 of the shell is embedded in the sealing groove 301, and a sealing member 302 is provided between the outer edge 1021 of the shell and the sealing groove 301, and the sealing member 302 may be foam. When the thermal cover assembly 100 is in the closed position, under the action of the outer edge 1021 of the shell, the sealing groove 301 and the sealing member 302, the outer edge 1021 of the shell will be pressed against the sealing member 302, so that the placement area of ​​the heat conducting plate 104 and the heat preservation plate 300 forms a closed cavity, and no cold air will flow into the surroundings of the reaction tube 500, further avoiding the formation of condensed water on the upper part of the reaction tube 500, thereby improving the experimental performance.

[0081] The utility model also discloses a reaction pool system, which includes a reaction pool (not shown in the figure), a heating component and an automatic buckling heat cover device. A heat preservation plate 300 is arranged in the reaction pool, and a reaction tube 500 is used to be arranged on the heat preservation plate 300. The heating component is used to heat the reaction pool, and the heating component includes a heating body (usually a semiconductor cooling sheet) and a radiator 200 for dissipating heat for the heating body.

[0082] The automatic buckling heat cover device is the automatic buckling heat cover device disclosed in the above embodiment, and the automatic buckling heat cover device is arranged on the heat sink 200. Specifically, the shaft seat 407 and the motor seat 409 can be fixed to the corresponding positions of the heat sink 200 by fasteners, and the driving motor 401 is fixed to the motor seat 409. The reaction pool system provided by the utility model has all the technical effects of the automatic buckling heat cover device, which will not be repeated here.

[0083] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0084] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0085] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0086] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An automatic fastening hot cover device, characterized in that: include: A thermal cover assembly (100) swings between an open cover position and a closed cover position, and when the thermal cover assembly (100) is in the closed cover position, it is used to heat the top of the reaction tube (500), and when it is in the open cover position, it avoids the reaction tube (500) so that the reaction tube (500) can be taken in and out; The driving device (400) comprises a driving motor (401), a connecting rod mechanism and a guide shaft (406); the thermal cover assembly (100) is fixed to the guide shaft (406); the input end of the connecting rod mechanism is connected to the output shaft of the driving motor (401); the output end of the connecting rod mechanism is connected to the guide shaft (406); the driving motor (401) drives the guide shaft (406) to rotate around its axis through the connecting rod mechanism, so as to drive the thermal cover assembly (100) to swing between an open cover position and a closed cover position.

2. The automatic closing hot cover device according to claim 1, characterized in that: The connecting rod mechanism comprises: A toggle rod (408), one end of which is fixed to the output shaft of the drive motor (401), and the other end of which is provided with a toggle block (410); A connecting rod (404), one end of which is fixed on the guide shaft (406), and a shifting slide groove (4041) is provided on the connecting rod (404), and the shifting block (410) is movably embedded in the shifting slide groove (4041).

3. The automatic closing hot cover device according to claim 2, characterized in that: When the thermal cover assembly (100) switches between the cover-closing position and the cover-opening position, the shift block (410) moves between the two ends of the shifting slide groove (4041), and when the thermal cover assembly (100) is in the cover-closing position and the cover-opening position, the shift block (410) is located at the end of the shifting slide groove (4041).

4. The automatic closing hot cover device according to claim 3, characterized in that: When the thermal cover assembly (100) is in the cover-closing position and the cover-opening position, the toggle rod (408) is perpendicular to the linkage rod (404).

5. The automatic closing hot cover device according to claim 2, characterized in that: A rolling ring (411) is rotatably mounted on the shifting block (410), and the rolling ring (411) is in rolling cooperation with the shifting sliding groove (4041).

6. The automatic fastening hot cover device according to any one of claims 1 to 5, characterized in that: The guide shaft (406) is rotatably supported on a rotating shaft seat (407); The axial position of the guide shaft (406) is limited on the rotating shaft seat (407) by a retaining spring, and a bushing is provided between the guide shaft (406) and the rotating shaft seat (407).

7. The automatic fastening hot cover device according to any one of claims 1 to 5, characterized in that: Also includes a first limit sensor (402) and a second limit sensor (403); The output end of the connecting rod mechanism is connected to one end of the guide shaft (406), and the other end of the guide shaft (406) is provided with a sensor sheet (405); When the first limit sensor (402) is triggered by the sensor sensing sheet (405), the thermal cover assembly (100) is in the closed cover position, and when the second limit sensor (403) is triggered by the sensor sensing sheet (405), the thermal cover assembly (100) is in the open cover position.

8. The automatic fastening hot cover device according to any one of claims 1 to 5, characterized in that: The thermal cover assembly (100) comprises: A lower cover (103), wherein a heat conducting plate (104) is disposed on the lower cover (103), and the heat conducting plate (104) is used to heat the top of the reaction tube (500); A lower cover shell (102) is arranged on a first side of the lower cover (103), and a position of the lower cover shell (102) corresponding to the heat conducting plate (104) has a heating groove for exposing the heat conducting plate (104); The upper cover (101) is arranged on the second side of the lower cover (103), and the lower cover shell (102) and the upper cover (101) are made of plastic material.

9. The automatic closing hot cover device according to claim 8, characterized in that: The outer ring of the heating tank is provided with an outwardly convex shell outer edge (1021); a heat preservation plate (300) for placing the reaction tube (500) is provided with a sealing groove (301) outside the placement area of ​​the reaction tube (500); when the heat cover assembly (100) is in a closed cover position, the shell outer edge (1021) is embedded in the sealing groove (301), and a sealing member (302) is provided between the shell outer edge (1021) and the sealing groove (301).

10. A reaction pool system, characterized in that: include: A reaction pool, wherein a heat preservation plate (300) is arranged in the reaction pool, and a reaction tube (500) is used to be arranged on the heat preservation plate (300); A heating component, used for heating the reaction pool, the heating component comprising a heating body and a radiator (200) for dissipating heat from the heating body; An automatic buckling heat cover device is the automatic buckling heat cover device according to any one of claims 1 to 9, and the automatic buckling heat cover device is arranged on the heat sink (200).

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