Sample extraction device

Abstract

The utility model relates to the technical field of sampling equipment, and discloses a sample extraction device, which comprises a box body, a heating unit, a refrigeration unit, a sampling assembly and a temperature controller, a liquid storage cavity is arranged in the box body, and is used for storing a sampling sample; a heating part of the heating unit and a cooling part of the refrigerating unit are arranged in the box body and are used for adjusting the temperature of the liquid storage cavity; the output end of the sampling assembly is communicated with the liquid storage cavity, and the input end of the sampling assembly is used for sampling; the temperature controller is arranged on the box body and electrically connected with the heating unit and the refrigerating unit; the influence of sample extraction on the accuracy of experimental detection is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sampling equipment, in particular to a sample extraction device. BACKGROUND

[0002] In many scientific research, industrial production and quality detection fields, it is often necessary to extract samples of substances in high or low temperature environments for further analysis of their composition, performance and other related characteristics.

[0003] In related technologies, the sample extraction device is mostly designed for normal temperature environment. When facing samples in high or low temperature environment, the extraction device is not insulated or has poor insulation, causing the physical properties of the samples to change in different temperature environments, which affects the detection accuracy of the experiment in the subsequent detection process. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a sample extraction device to reduce the influence of sample extraction on the accuracy of experimental detection.

[0005] In one aspect, the present application provides a sample extraction device, which comprises a box body, a heating unit, a refrigeration unit, a sampling assembly and a temperature controller, and the specific scheme is as follows.

[0006] The box body is provided with a liquid storage cavity inside for storing sampling samples;

[0007] The heating unit and the refrigeration unit are provided inside the box body, and the heating part of the heating unit and the cooling part of the refrigeration unit are used to adjust the temperature of the liquid storage cavity;

[0008] The sampling assembly is communicated with the liquid storage cavity at the output end, and the input end of the sampling assembly is used for sampling;

[0009] The temperature controller is provided on the box body, and the temperature controller is electrically connected with the heating unit and the refrigeration unit.

[0010] Advantages: the heating unit and the refrigeration unit are arranged in the box body, the temperature of the liquid storage cavity is changed by the temperature controller according to the temperature state of the extracted sample, the temperature of the extracted sample is kept consistent, the sampling assembly is used to sample the sample, so that the temperature of the sample in the liquid storage cavity is kept unchanged, the physical properties of the extracted sample are kept unchanged, and the accuracy of the sample is ensured.

[0011] In an alternative embodiment, the box comprises a box body and a box cover, the box body is provided with an upper opening, the box cover covers the opening, the box body comprises an outer shell, an inner shell and a liquid storage chamber; the inner shell is arranged in the outer shell, the inner shell is a heat-conducting shell, the heating unit and the cooling unit are attached to the inner shell and located between the outer shell and the inner shell; the liquid storage chamber is located in the liquid storage chamber, the liquid storage chamber is arranged in the inner shell, the liquid storage chamber is provided with a liquid inlet, the liquid inlet is communicated with the output end of the sampling assembly, and the liquid storage chamber is a heat-conducting cavity.

[0012] In an alternative embodiment, the heating unit comprises a plurality of electric heating wires, and the plurality of electric heating wires are uniformly distributed on the inner shell; and / or the refrigeration unit comprises a compression assembly and at least one cold pipe, the cold pipe is communicated with the input end and the output end of the compression assembly, the compression assembly is arranged outside the box, and a part of the cold pipe is attached to the inner shell.

[0013] In an alternative embodiment, the sampling assembly comprises a sampling needle and a liquid pump, the sampling needle is communicated with the input end of the liquid pump, the output end of the liquid pump is communicated with the liquid storage chamber, and the sampling needle is arranged in an arc shape.

[0014] In an alternative embodiment, at least one temperature sensor is further included, the temperature sensor is arranged on the outer surface of the liquid storage chamber, and the temperature sensor is signal-connected with the temperature controller.

[0015] In an alternative embodiment, a handle is further included, the handle is arranged on the outer top of the box; and / or a heat insulation layer is arranged between the inner shell and the outer shell.

[0016] In an alternative embodiment, a folding support is further included, the folding support is arranged on the outer bottom of the box, the folding support comprises a telescopic support and a base, one end of the telescopic support is rotationally connected with the outer bottom surface of the box, the other end of the telescopic support is rotationally connected with the base, and the telescopic support can be telescoped.

[0017] In an alternative embodiment, at least one recess is arranged on the side surface of the liquid storage chamber, at least one protrusion is arranged on the inner shell, and the protrusion is attached to the recess one by one.

[0018] In an alternative embodiment, the recess extends along the height direction of the box.

[0019] In an alternative embodiment, the material of the outer shell is any one of an aluminum-plastic composite plate, a galvanized steel plate sprayed with polyamide-imide paint, and a polycarbonate plate sprayed with polyimide paint.

[0020] And / or, the material of the inner shell is a copper-steel composite plate or an aluminum alloy plate. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the specific embodiments or the related art, the drawings needed to be used in the specific embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is a structural schematic view of a sample extraction device of an embodiment of the present application.

[0023] Figure 2 It is a left view of another sample extraction device of an embodiment of the present application.

[0024] Figure 3 It is a structural schematic view of a sampling device in a sample extraction device of an embodiment of the present application.

[0025] Figure 4 It is a sectional view of a box body in a sample extraction device of an embodiment of the present application.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1, box body; 2, heating unit; 3, refrigeration unit; 4, sampling assembly; 5, temperature sensor; 6, handle; 7, folding support;

[0028] 11, liquid storage cavity; 12, box cover; 13, box body;

[0029] 131, outer shell; 132, inner shell; 133, liquid reservoir;

[0030] 1321, protruding part; 1331, liquid inlet; 1332, recessed part;

[0031] 31, compression assembly; 32, cold pipe;

[0032] 41, sampling needle; 42, liquid pumping pump;

[0033] 71, telescopic support; 72, base. DETAILED DESCRIPTION

[0034] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0035] In the related art, in many scientific research, industrial production, and quality detection fields, it is often necessary to extract samples of substances in high and low temperature environments for further analysis of their composition, performance, and other related characteristics.

[0036] Most sample extraction devices are designed for normal temperature environments. When facing samples in high or low temperature environments, the extraction devices are not insulated or have poor insulation, causing the physical characteristics of the samples to change in different temperature environments, which affects the detection accuracy of the experiment in the subsequent detection process.

[0037] To solve the above problems, the present application provides a sample extraction device to reduce the influence of sample extraction on the accuracy of experimental detection.

[0038] The embodiments of the present application will be described below in conjunction with Figures 1 to 4 .

[0039] According to the embodiments of the present application, on the one hand, a sample extraction device is provided, as shown in Figure 1 , which includes a box body 1, a heating unit 2, a refrigeration unit 3, a sampling assembly 4, and a temperature controller, and the specific solutions are as follows.

[0040] As shown in Figure 1 , the box body 1 is provided with a liquid storage cavity 11 for storing sampling samples; specifically, the outer surface of the box body 1 can be a high-strength and high-low temperature resistant box body 1, which can be made of any one of an aluminum-plastic composite board, a galvanized steel plate sprayed with polyamide-imide paint, and a polycarbonate plate sprayed with polyimide paint, and sealed with a sealing member made of phenyl silicone rubber material.

[0041] As shown in Figure 1 , the heating part of the heating unit 2 and the cooling part of the refrigeration unit 3 are both arranged in the box body 1 for adjusting the temperature of the liquid storage cavity 11; specifically, the heating unit 2 can be an electric heating wire, a heating semiconductor, etc.; the refrigeration unit 3 can be a refrigeration semiconductor, a compression refrigeration device, etc.

[0042] As shown in Figure 1 , the output end of the sampling assembly 4 communicates with the liquid storage cavity 11, and the input end of the sampling assembly 4 is used for sampling; specifically, the sampling assembly 4 is used to suck the sample into the liquid storage cavity 11.

[0043] The temperature controller is arranged on the box body 1, and the temperature controller is electrically connected with the heating unit 2 and the refrigeration unit 3. Specifically, the temperature controller can be a single-chip microcomputer, a computer host, a mainboard or the like.

[0044] Specifically, in use, as shown in Figure 1 When the temperature of the sample to be extracted is high, such as 40℃, the heating unit 2 can be controlled by the temperature controller to heat, so that the temperature in the box body 1 rises to 40℃, and then the sample is sampled by the sampling assembly 4 and is stored in the liquid storage cavity 11 to prevent the temperature from dropping and ensure that the physical properties of the sample do not change, thereby ensuring the accuracy of the experiment.

[0045] Similarly, when the temperature of the sample to be extracted is low, such as -20℃, the refrigeration unit 3 can be controlled by the temperature controller to refrigerate, so that the temperature in the box body 1 drops to -20℃, and then the sample is sampled by the sampling assembly 4 and is stored in the liquid storage cavity 11 to prevent the temperature from rising and ensure that the physical properties of the sample do not change, thereby ensuring the accuracy of the experiment.

[0046] In this embodiment, as shown in Figure 1 The heating unit 2 and the refrigeration unit 3 are arranged in the box body 1, the temperature of the liquid storage cavity 11 is changed by the temperature controller according to the temperature state of the sample to be extracted, the sample is sampled by the sampling assembly 4, so that the temperature of the sample in the liquid storage cavity 11 is kept unchanged, the physical properties of the sample to be extracted are kept unchanged, and the accuracy of the sample is ensured.

[0047] In one embodiment, as shown in Figure 1 The box body 1 includes a box body 13 and a box cover 12, the upper part of the box body 13 is open, and the box cover 12 covers the opening. Specifically, the box cover 12 is a heat preservation cover, and is filled with a heat insulation material. The box body 13 includes an outer shell 131, an inner shell 132 and a liquid storage device 133. The inner shell 132 is arranged in the outer shell 131, and is a heat conduction shell. The heating part of the heating unit 2 and the cooling part of the refrigeration unit 3 are attached to the inner shell 132 to perform heat transfer with the inner shell 132 and control the temperature of the liquid storage device 133. The liquid storage cavity 11 is located in the liquid storage device 133, that is, the liquid storage cavity 11 is arranged in the liquid storage device 133. The liquid storage device 133 is a super heat cavity, is arranged in the inner shell 132, and is provided with a liquid inlet 1331. The liquid inlet 1331 is in communication with the output end of the sampling assembly 4, and the liquid storage device 133 is a heat conduction cavity.

[0048] It should be noted that the heating unit 2 refers to the heating unit 2 that can be in thermal communication with other components to heat other components; the cooling unit 3 refers to the cooling unit 3 that can be in thermal communication with other components to cool other components.

[0049] Specifically, the heating unit 2 can be multiple, and is distributed on the surface of the inner shell 132, and can be bonded on the inner shell 132 by a heat-conducting adhesive, or can be connected with the inner shell 132 by a clamping manner; the cooling unit 3 can also be multiple, and is distributed on the surface of the inner shell 132, and of course, can also be fixed by a heat-conducting adhesive.

[0050] Specifically, one side of the box cover 12 is rotatably connected with the box body 13 by a hinge, and the other side of the box cover 12 is connected with the box body 13 by a lock catch; of course, the box cover 12 and the box body 13 can also be detachably connected by other connection manners, as long as the box cover 12 can be in an open and closed state relative to the box body 13.

[0051] More specifically, the material of the outer shell 131 is any one of an aluminum-plastic composite board, a galvanized steel plate sprayed with polyamide-imide paint, and a polycarbonate plate sprayed with polyimide paint, which has the advantages of high strength, high and low temperature resistance, and dimensional stability in high and low temperature environments, thereby improving the service life of the sample extraction device; the material of the inner shell 132 is a copper-steel composite plate or an aluminum alloy plate, which has the advantages of high strength, high and low temperature resistance, and dimensional stability in high and low temperature environments, thereby improving the service life of the sample extraction device; the liquid reservoir 133 has.

[0052] In this embodiment, by including the box 1 including the box cover 12 and the box body 13, the box body 13 including the outer shell 131, the inner shell 132 and the liquid reservoir 133, the inner shell 132 and the liquid reservoir 133 can be in thermal communication, so that the liquid reservoir 133 can be taken out of the box 1, and the subsequent use of sampling is facilitated.

[0053] In one embodiment, the heating unit 2 includes a plurality of electric heating wires, which are distributed on the inner shell 132; as Figure 1 As shown, the refrigeration unit 3 includes a compression assembly 31 and at least one cold pipe 32, the cold pipe 32 is in communication with the input end and the output end of the compression assembly 31, the compression assembly 31 is arranged outside the box 1, and a part of the cold pipe 32 is arranged in close contact with the inner shell 132.

[0054] It is worth noting that the compression assembly 31 and the cold pipe 32 are used together, and there are mature products on the market that can be purchased.

[0055] In this embodiment, the heating unit 2 is a plurality of electric heating wires, the product is mature, the quality is stable, and the price is low, which can reduce the cost of the sample extraction device; the refrigeration unit 3 includes a compression assembly 31 and a cold pipe 32, the product is mature, and is easy to purchase.

[0056] In one embodiment, as shown in Figure 1 and Figure 3 The sampling assembly 4 includes a sampling needle 41 and a liquid suction pump 42, the sampling needle 41 is made of perfluoroalkoxy resin or polychloro-tetrafluoroethylene which has good chemical stability at high and low temperatures, the sampling needle 41 is in communication with the input end of the liquid suction pump 42, the output end of the liquid suction pump 42 is in communication with the liquid storage cavity 11, and the sampling needle 41 is arranged in an arc shape.

[0057] Specifically, the liquid suction pump 42 can be integrated with the sampling needle 41 to form an integral whole and communicate with the liquid storage tank 133 through a hose; alternatively, the liquid suction pump 42 can be integrated outside the box body 1 and communicate with the liquid storage tank 133 through a hose, and the sampling needle 41 communicates with the liquid suction pump 42 through another hose.

[0058] It is worth noting that the sampling needle 41 is arranged in an arc shape, and the radius of the arc shape can be selected according to actual needs, and of course, other shapes such as L-shaped, C-shaped, etc. can also be selected.

[0059] In this embodiment, the sampling needle in the sampling assembly 4 is arranged in an arc shape, which can be suitable for different shapes of sample containers and complex medium environments, is convenient to operate, and improves the sampling efficiency.

[0060] In one embodiment, as shown in Figure 1 The experimental extraction device further includes at least one temperature sensor 5, the temperature sensor 5 is arranged on the outer surface of the liquid storage tank 133, and the temperature sensor 5 is signal-connected with the temperature controller.

[0061] Specifically, the temperature sensor 5 can be a plurality of temperature sensors which are uniformly distributed on the side surface of the liquid storage tank 133; the temperature sensor 5 can perform signal transmission with the temperature controller through Bluetooth, a local area network, a wireless network, etc., or can directly perform electrical signal transmission through a wire harness.

[0062] In this embodiment, the temperature sensor 5 is arranged to detect the actual temperature of the liquid storage tank 133, so that the temperature controller can adjust the temperature of the liquid storage tank 133 in real time, thereby ensuring the temperature stability of the liquid storage tank 133.

[0063] In one embodiment, as shown in Figure 1As shown, the sample extraction device further comprises a handle 6 arranged on the outer top of the box body 1, facilitating carrying of the sample extraction device; a heat insulation layer is arranged between the inner shell 132 and the outer shell 131, specifically, the heat insulation layer is one of molded polystyrene foam, polyurethane foam and aerogel, or a combination board of at least two thereof, in this embodiment, by arranging the heat insulation layer, the heat insulation performance of the box body 1 can be further improved.

[0064] In one embodiment, as Figure 2 shown, the sample extraction device further comprises a folding support 7, which can be a plastic support or a metal support, preferably, the metal support is externally sleeved with a plastic shell or a rubber sleeve; the folding support 7 is arranged on the outer bottom of the box body 1, specifically, the folding support 7 comprises a telescopic support 71 and a base 72, one end of the telescopic support 71 is rotatably connected with the outer bottom surface of the box body 1, the other end of the telescopic support 71 is rotatably connected with the base 72, and the telescopic support 71 can be telescoped.

[0065] Specifically, the telescopic support 71 and the box body 1 are connected through an angle-adjustable rotary connecting piece, and the telescopic support 71 and the base 72 are connected through another angle-adjustable rotary connecting piece, which is a product available on the market.

[0066] In the specific use process, the height of the folding support 7 can be adjusted by the included angle between the telescopic support 71 and the bottom surface of the box body 1, and if the height does not meet the requirements, the length of the telescopic support 71 can be changed to further increase the height of the folding support 7.

[0067] In this embodiment, by arranging the folding support 7 on the bottom of the box body 1, the height of the box body 1 can be adjusted to facilitate sample extraction; at the same time, the base 72 and the box body 1 are connected through the telescopic support 71 in the folding support 7, which can further expand the height range of the box body 1 and be suitable for more use scenarios.

[0068] In one embodiment, as Figure 4 shown, at least one recessed part 1332 is arranged on the side surface of the liquid storage tank 133, and at least one protruding part 1321 is arranged on the inner shell 132, and the protruding part 1321 corresponds to the recessed part 1332 one by one.

[0069] It should be noted that the shape of the recessed part 1332 can be any shape such as a cuboid, a hemisphere, a spherical cap, etc., and of course the protruding part 1321 on the inner shell 132 corresponds to the recessed part 1332 on the liquid storage tank 133 one by one, which can improve the heat transfer efficiency; preferably, the protruding part 1321 is provided with a heating part of the heating unit 2 and a cooling part of the refrigeration unit 3.

[0070] In this embodiment, by arranging the recess 1332 on the liquid reservoir 133, since the recess 1332 extends to the interior of the liquid reservoir 133, and the protrusion 1321 on the outer shell 131 is attached to the recess 1332, the recess 1332 can heat the sample located in the interior of the liquid reservoir 133, thereby improving the heat uniformity of the liquid reservoir 133.

[0071] In one embodiment, as shown in Figure 4 the recess 1332 extends along the height direction of the box body 1, that is, the recess 1332 and the protrusion 1321 can be slidably connected along the height direction of the box body 1, facilitating the taking and placing of the liquid reservoir 133.

[0072] Specifically, the cross section of the recess 1332 along the height direction of the box body 1 is in any shape such as a rectangle, a semicircle, or a polygon.

[0073] In the following, one embodiment is used to comprehensively describe the above-mentioned scheme.

[0074] According to the embodiments of the present application, on the one hand, a sample extraction device is provided, as shown in Figure 1 which includes a box body 1, a heating unit 2, a refrigeration unit 3, a sampling assembly 4, a handle 6, a folding support 7, and a temperature controller, and the specific scheme is as follows.

[0075] As shown in Figure 1 the box body 1 is provided with a liquid storage cavity 11 for storing a sample; specifically, the outer surface of the box body 1 can be a high-strength and high-temperature-resistant box body 1, which can be made of any one of an aluminum-plastic composite board, a galvanized steel plate sprayed with polyamide-imide paint, and a polycarbonate plate sprayed with polyimide paint, and is sealed by a sealing element made of phenyl silicone rubber.

[0076] As shown in Figure 1 the heating part of the heating unit 2 and the cooling part of the refrigeration unit 3 are both arranged in the box body 1, and are used to adjust the temperature of the liquid storage cavity 11; specifically, the heating unit 2 can be an electric heating wire or a heating semiconductor; the refrigeration unit 3 can be a refrigeration semiconductor or a compression refrigeration device.

[0077] As shown in Figure 1 the output end of the sampling assembly 4 is in communication with the liquid storage cavity 11, and the input end of the sampling assembly 4 is used for sampling; specifically, the sampling assembly 4 is used to suck the sample into the liquid storage cavity 11.

[0078] The temperature controller is arranged on the box body 1, and the temperature controller is electrically connected with the heating unit 2 and the refrigeration unit 3; specifically, the temperature controller can be a single-chip microcomputer, a computer host, a mainboard, etc.

[0079] Further specifically, as shown in Figure 1As shown, the box body 1 includes a box body 13 and a box cover 12, the upper part of the box body 13 is open, and the box cover 12 covers the opening. Specifically, the box cover 12 is a heat preservation cover, and the inside is filled with a heat insulation material. The box body 13 includes an outer shell 131, an inner shell 132, and a liquid storage device 133. The inner shell 132 is arranged in the outer shell 131, and the inner shell 132 is a heat conducting shell. The heating part of the heating unit 2 and the cooling part of the refrigeration unit 3 are attached to the inner shell 132 to conduct heat with the inner shell 132 to control the temperature of the liquid storage device 133. The liquid storage cavity 11 is located in the liquid storage device 133, that is, the liquid storage cavity 11 is arranged in the liquid storage device 133. The liquid storage device 133 is a super-heated cavity, and the liquid storage device 133 is arranged in the inner shell 132. The liquid storage device 133 is provided with a liquid inlet 1331, and the liquid inlet 1331 is in communication with the output end of the sampling assembly 4. The liquid storage device 133 is a heat conducting cavity.

[0080] It should be noted that the heating part of the heating unit 2 refers to the part of the heating unit 2 that can conduct heat with other components to heat other components. The cooling part of the refrigeration unit 3 refers to the part of the refrigeration unit 3 that can conduct heat with other components to cool other components.

[0081] Specifically, the heating part of the heating unit 2 can be multiple, evenly distributed on the surface of the inner shell 132, and can be adhered to the inner shell 132 by heat conduction glue, or can be connected to the inner shell 132 by clamping. The cooling part of the refrigeration unit 3 can also be multiple, evenly distributed on the surface of the inner shell 132, and of course, can also be fixed by heat conduction glue.

[0082] Specifically, one side of the box cover 12 is rotatably connected to the box body 13 by a hinge, and the other side of the box cover 12 is connected to the box body 13 by a lock catch. Of course, the box cover 12 and the box body 13 can also be detachably connected by other connection methods, as long as the box cover 12 can be opened and closed relative to the box body 13.

[0083] Further specifically, the material of the outer shell 131 is any one of an aluminum-plastic composite board, a galvanized steel plate sprayed with polyamide-imide paint, and a polycarbonate plate sprayed with polyimide paint, which has the advantages of high strength, high and low temperature resistance, and size stability in high and low temperature environments, thereby improving the service life of the sample extraction device. The material of the inner shell 132 is a copper-steel composite plate or an aluminum alloy plate, which has the advantages of high strength, high and low temperature resistance, and size stability in high and low temperature environments, thereby improving the service life of the sample extraction device. The liquid storage device 133 has.

[0084] Further specifically, the heating unit 2 includes a plurality of electric heating wires, and the plurality of electric heating wires are evenly distributed on the inner shell 132. For example, Figure 1As shown, the refrigeration unit 3 includes a compression assembly 31 and at least one cold pipe 32, the cold pipe 32 is in communication with the input end and the output end of the compression assembly 31, the compression assembly 31 is arranged outside the box body 1, and part of the cold pipe 32 is arranged in close contact with the inner shell 132.

[0085] It is worth noting that the compression assembly 31 and the cold pipe 32 are used together, and there are mature products on the market that can be purchased.

[0086] Further specifically, as shown in Figure 1 and Figure 3 , the sampling assembly 4 includes a sampling needle 41 and a liquid pumping pump 42, the sampling needle 41 is made of perfluoroalkoxy resin or polychloro-tetrafluoroethylene which has good chemical stability at high and low temperatures, the sampling needle 41 is in communication with the input end of the liquid pumping pump 42, the output end of the liquid pumping pump 42 is in communication with the liquid storage cavity 11, and the sampling needle 41 is arranged in an arc shape.

[0087] Specifically, the liquid pumping pump 42 can be an integral structure with the sampling needle 41 and integrated into one whole, and communicate with the liquid reservoir 133 through a hose; alternatively, the liquid pumping pump 42 can be integrated outside the box body 1 and communicate with the liquid reservoir 133 through a hose, and the sampling needle 41 communicates with the liquid pumping pump 42 through another hose.

[0088] It is worth noting that the sampling needle 41 is arranged in an arc shape, and the radius of the arc shape can be selected according to actual needs, and of course, it can also be other shapes, such as L-shaped, C-shaped, etc.

[0089] Further specifically, as shown in Figure 1 , the experimental sampling device further includes at least one temperature sensor 5, the temperature sensor 5 is arranged on the outer surface of the liquid reservoir 133, and the temperature sensor 5 is signal connected with the temperature controller.

[0090] Specifically, the temperature sensor 5 can be multiple and arranged on the side of the liquid reservoir 133; the temperature sensor 5 can transmit signals to the temperature controller through Bluetooth, local area network, wireless network, etc., or directly transmit electrical signals through a wire harness.

[0091] Further specifically, as shown in Figure 1 , the handle 6 is arranged on the outer top of the box body 1, which is convenient for carrying the sample sampling device; a heat insulation layer is arranged between the inner shell 132 and the outer shell 131, and specifically, the heat insulation layer is one of molded polystyrene foam plastic, polyurethane foam and aerogel, or a combination plate of at least two kinds. In this embodiment, by arranging the heat insulation layer, the heat insulation performance of the box body 1 can be further improved.

[0092] Further specifically, as shown in Figure 2As shown, the folding support 7 can be a plastic support or a metal support, preferably, the metal support is externally sleeved with a plastic shell or a rubber sleeve; the folding support 7 is arranged at the outer bottom of the box body 1, specifically, the folding support 7 comprises a telescopic support 71 and a base 72, one end of the telescopic support 71 is rotationally connected with the outer bottom surface of the box body 1, the other end of the telescopic support 71 is rotationally connected with the base 72, and the telescopic support 71 can be telescoped.

[0093] Specifically, the telescopic support 71 is connected with the box body 1 through an angle-adjustable rotational connecting piece, and the telescopic support 71 is connected with the base 72 through another angle-adjustable rotational connecting piece, the angle-adjustable rotational connecting piece is a product available in the market.

[0094] Further specifically, as shown in the figure, Figure 4 Specifically, the side of the liquid reservoir 133 is provided with at least one recessed part 1332, and the inner shell 132 is provided with at least one protruding part 1321, the protruding part 1321 corresponds to the recessed part 1332 one by one.

[0095] It should be noted that the shape of the recessed part 1332 can be any shape such as a cuboid, a hemisphere, a spherical cap, etc., and of course the protruding part 1321 on the inner shell 132 corresponds to the recessed part 1332 on the liquid reservoir 133 one by one, which can improve the heat transfer efficiency; preferably, the protruding part 1321 is provided with a heating part of the heating unit 2 and a cooling part of the refrigeration unit 3 near the part of the outer shell 131.

[0096] Further specifically, as shown in the figure, Figure 4 Specifically, the recessed part 1332 extends along the height direction of the box body 1, that is, the recessed part 1332 and the protruding part 1321 can be slidably connected along the height direction of the box body 1, which facilitates the taking and placing of the liquid reservoir 133. Specifically, the cross section of the recessed part 1332 along the height direction of the box body 1 is in any shape such as a rectangle, a semicircle, a polygon, etc.

[0097] Although the embodiments of the present application are described in conjunction with the accompanying drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A sample extraction device, characterized by, The utility model relates to a temperature control device for sample storage, comprising: a box (1), which is provided with a liquid storage cavity (11) for storing a sampling sample; a heating unit (2) and a refrigeration unit (3), wherein the heating part of the heating unit (2) and the cooling part of the refrigeration unit (3) are arranged in the box (1) to adjust the temperature of the liquid storage cavity (11); a sampling assembly (4), which is communicated with the liquid storage cavity (11) and has an input end for sampling; a temperature controller, which is arranged on the box (1) and is electrically connected with the heating unit (2) and the refrigeration unit (3).

2. The sample extraction device of claim 1, wherein The box (1) comprises a box body (13) and a box cover (12), the upper part of the box body (13) is open, and the box cover (12) covers the opening; the box body (13) comprises: an outer shell (131); an inner shell (132), which is arranged in the outer shell (131) and is a heat-conducting shell, the heating part of the heating unit (2) and the cooling part of the refrigeration unit (3) are attached to the inner shell (132) and located between the outer shell (131) and the inner shell (132); a liquid storage device (133), wherein the liquid storage cavity (11) is arranged in the liquid storage device (133), the liquid storage device (133) is arranged in the inner shell (132), the liquid storage device (133) is provided with a liquid inlet (1331), the liquid inlet (1331) is communicated with the output end of the sampling assembly (4), and the liquid storage device (133) is a heat-conducting cavity.

3. The sample extraction device of claim 2, wherein The heating unit (2) comprises a plurality of electric heating wires, which are uniformly distributed on the inner shell (132); and / or, the refrigeration unit (3) comprises a compression assembly (31) and at least one cold pipe (32), the cold pipe (32) is communicated with the input end and the output end of the compression assembly (31), the compression assembly (31) is arranged outside the box (1), and a part of the cold pipe (32) is attached to the inner shell (132).

4. The sample extraction device according to any one of claims 1 to 3, characterized in that The sampling assembly (4) comprises a sampling needle (41) and a liquid pumping pump (42), the sampling needle (41) is communicated with the input end of the liquid pumping pump (42), the output end of the liquid pumping pump (42) is communicated with the liquid storage cavity (11), and the sampling needle (41) is arranged in an arc shape.

5. The sample extraction device of claim 2 or 3, wherein, At least one temperature sensor (5) is further arranged on the outer surface of the liquid storage device (133), and the temperature sensor (5) is signal-connected with the temperature controller.

6. The sample extraction device of claim 2 or 3, wherein A handle (6) is further arranged on the outer top of the box (1); and / or, a heat insulation layer is arranged between the inner shell (132) and the outer shell (131).

7. The sample extraction device according to any one of claims 1 to 3, wherein The folding support (7) is arranged at the outer bottom of the box body (1), the folding support (7) comprises a telescopic support (71) and a base (72), one end of the telescopic support (71) is rotationally connected with the outer bottom surface of the box body (1), the other end of the telescopic support (71) is rotationally connected with the base (72), and the telescopic support (71) can be telescoped.

8. The sample extraction device of claim 2 or 3, wherein, At least one recess (1332) is arranged on the side of the liquid reservoir (133), and at least one protrusion (1321) is arranged on the inner shell (132), the protrusion (1321) is matched with the recess (1332) one by one.

9. The sample extraction device of claim 8, wherein, The recess (1332) extends along the height direction of the box body (1).

10. The sample extraction device of claim 2 or 3, wherein The material of the outer shell (131) is any one of an aluminum-plastic composite board, a galvanized steel plate sprayed with polyamide-imide paint and a polycarbonate plate sprayed with polyimide paint; And / or, the material of the inner shell (132) is a copper-steel composite plate or an aluminum alloy plate.

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