Sample application plate heating device and sample application equipment

Abstract

The utility model provides a sample application plate heating device and sample application equipment. The point sample plate heating device comprises a heater and a storage table, the storage table is provided with a working face capable of containing a point sample plate, a cavity is formed in the storage table and communicates with the heater through a first heating channel, and the two opposite sides of the cavity in the first direction extend to form a second heating channel and a third heating channel correspondingly. A first air outlet is formed in the end, away from the cavity, of the second heating channel, a second air outlet is formed in the end, away from the cavity, of the third heating channel, and the first air outlet and the second air outlet blow air towards the working face. The point sample plate heating device can automatically heat the point sample plate placed on the working face, the automation degree is higher, and the problems that in the heating process of the point sample plate, manual operation efficiency is low, and the experiment effect is poor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomedicine, in particular to a sample spotting plate heating device and a sample spotting device. Background Art

[0002] Thin-layer chromatography (TLC) spotting experiments are widely used in chemistry, biology, medicine, and environmental fields. After developing the sample, the sample plate can be soaked in a developer and then heated to enhance the color development and facilitate observation of the developed results. Traditionally, heating the sample plate manually with a handheld hair dryer is inefficient and results in poor results. Utility Model Content

[0003] To at least partially address the problems existing in the prior art, according to one aspect of the present invention, a sample plate heating device is provided. The sample plate heating device includes a heater and a storage platform. The storage platform has a work surface on which the sample plate can be placed. A cavity is formed within the storage platform. The cavity is connected to the heater via a first heating channel. A second heating channel and a third heating channel are respectively extended from opposite sides of the cavity in a first direction. A first air outlet is formed at an end of the second heating channel away from the cavity. A second air outlet is formed at an end of the third heating channel away from the cavity. The first and second air outlets blow air toward the work surface.

[0004] The sample plate heating device provided by the present invention can heat the working surface of the storage table through the first heating channel after the heater is turned on, thereby heating the sample plate placed on the working surface. In addition, after the heater is turned on, hot air can be generated from the first air outlet and the second air outlet and blown toward the sample plate placed on the working surface, thereby also heating the sample plate. Such a sample plate heating device can automatically heat the sample plate placed on the working surface, with a higher degree of automation, and can avoid problems such as low efficiency and poor experimental results caused by manual operation during the sample plate heating process.

[0005] Illustratively, the second heating channel, the third heating channel and the working surface enclose a limiting groove, and the spotting plate can be placed in the limiting groove.

[0006] Exemplarily, the shortest distance between the first air outlet and the working surface is 18-22 mm.

[0007] Exemplarily, the shortest distance between the second air outlet and the working surface is 18-22 mm.

[0008] Exemplarily, the angle between the blowing direction of the first air outlet and the plane where the working surface is located is 25-35°.

[0009] Exemplarily, the angle between the blowing direction of the second air outlet and the plane where the working surface is located is 25-35°.

[0010] Exemplarily, a connecting plate is provided on the storage table, an opening is provided on the connecting plate, the first heating channel is connected to the cavity through the opening, and a heat insulating member is provided on at least one side of the connecting plate in a second direction perpendicular to the first direction.

[0011] Exemplarily, a storage plate is provided on the work surface, and a plurality of support protrusions are provided on the storage plate protruding away from the work surface. The plurality of support protrusions surround a positioning area, and the spotting plate can be placed on the storage plate, and the spotting plate is limited in the positioning area.

[0012] Exemplarily, a positioning column is provided on the outer surface of the storage table protruding along the third direction, the third direction is perpendicular to the first direction, and the third direction and the first direction are both parallel to the plane where the work surface is located; a mounting plate is provided on the storage plate, the mounting plate is perpendicular to the third direction, and a mounting through hole is provided on the mounting plate, and the positioning column is passed through the mounting through hole.

[0013] Illustratively, the dot pattern plate heating device includes an image acquisition component. There is a gap between the first air outlet and the second air outlet. The image acquisition component acquires the color of the dot pattern plate placed on the work surface through the gap.

[0014] Exemplarily, the spot plate heating device includes a box body, the storage table, the second heating channel and the third heating channel are all located inside the box body, the heater is located outside the box body, and the first heating channel passes through a side surface of the box body and connects between the storage table and the heater.

[0015] Exemplarily, an air outlet channel is provided on the box body, and the interior of the box body is connected to the outside through the air outlet channel.

[0016] Exemplarily, the box body is provided with an operating window, a door body and a driving member. The spotting plate is placed on the work surface through the operating window. The driving member is connected to the door body. The door body moves between a first position of covering the operating window and a second position of opening the operating window through the driving member.

[0017] According to another aspect of the present invention, a spotting device is provided, which includes a transport device and any one of the spotting plate heating devices described above, wherein the transport device places the spotting plate on a working surface or removes the spotting plate from the working surface.

[0018] The Summary of the Utility Model introduces a series of simplified concepts, which will be further described in detail in the Detailed Description of the Utility Model. This Summary of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0019] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0021] Figure 1 is a perspective view of a spotting plate heating device according to an exemplary embodiment of the present invention;

[0022] Figure 2 It is a partial perspective view of a spotting plate heating device according to an exemplary embodiment of the present invention, wherein a storage table and a portion of a first heating channel are shown;

[0023] Figure 3 A top view of a storage table according to an exemplary embodiment of the present invention;

[0024] Figure 4A is a cross-sectional view of a storage table according to an exemplary embodiment of the present invention;

[0025] Figure 4B A partial cross-sectional view of a spot plate heating device according to an exemplary embodiment of the present invention; and

[0026] Figure 5 It is a partial three-dimensional view of a spotting plate heating device according to an exemplary embodiment of the present utility model, wherein a storage plate and a spotting plate are shown.

[0027] The above drawings include the following reference numerals:

[0028] 100. Heater; 200. Storage table; 210. Work surface; 220. Second heating channel; 221. First air outlet; 230. Third heating channel; 231. Second air outlet; 240. Cavity; 250. Limiting groove; 260. Connecting plate; 270. Positioning column; 300. First heating channel; 400. Thermal insulation; 500. Storage plate; 510. Support protrusion; 520. Mounting plate; 521. Mounting through hole; 600. Box; 610. Operation window; 620. Door; 630. Drive member; 700. Sample plate. DETAILED DESCRIPTION

[0029] In the following description, numerous details are provided to facilitate a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well known in the art have not been described in detail.

[0030] According to one aspect of the present invention, a spotting plate heating device is provided. The spotting plate heating device can be applied to any suitable device, including but not limited to spotting devices. Therefore, according to another aspect of the present invention, a spotting device is provided. The spotting device may include a transport device and any of the spotting plate heating devices to be introduced below. In the spotting device, the spotting plate that has been spotted needs to be heated and colored after being unfolded and infiltrated. The spotting plate heating device may include a working surface, and the spotting plate heating device may heat the spotting plate located on the working surface. The transport device may place the spotting plate on the working surface or remove the spotting plate from the working surface. Therefore, in such a spotting device, the transport device may be used to place the spotting plate that needs to be heated and colored on the working surface, or to remove the spotting plate that has been heated and colored from the working surface of the spotting plate heating device, so that the degree of automation when heating and coloring the spotting plate can be higher.

[0031] See also Figure 1 、 Figure 2 and Figure 3 The spotting plate heating device may include a heater 100 and a placement table 200. The placement table 200 may have a working surface 210 on which the spotting plate 700 may be placed. Figure 4A and Figure 4BA cavity 240 may be formed inside the storage table 200. The cavity 240 may be connected to the heater 100 via a first heating channel 300. The first heating channel 300 may be a pipe or any other suitable form. The heater 100 may be a heat gun or any other suitable form. Hot air may be generated at the heater 100 and may flow into the cavity 240 through the first heating channel 300. A second heating channel 220 and a third heating channel 230 may be formed on opposite sides of the cavity 240 in a first direction (direction XX in the figure). A first air outlet 221 may be formed on the end of the second heating channel 220 away from the cavity 240, and a second air outlet 231 may be formed on the end of the third heating channel 230 away from the cavity 240. The first air outlet 221 and the second air outlet 231 may both be arranged toward the work surface 210. The first air outlet 221 and the second air outlet 231 may blow air toward the work surface 210. The work surface 210 may include a portion made of a metal material that is easily heat-conducting. The hot air flowing into the cavity 240 through the first heating channel 300 can, on the one hand, heat the cavity 240, thereby increasing the temperature of the working surface 210, and heating the dot pattern plate 700 placed on the working surface 210; on the other hand, the hot air can enter the second heating channel 220 and the third heating channel 230 respectively through the cavity 240, and then can flow out from the first air outlet 221 and the second air outlet 231 respectively. The hot air flowing out from the first air outlet 221 and the second air outlet 231 respectively can heat the dot pattern plate 700 located on the working surface 210.

[0032] The sample plate heating device provided by the present invention can heat the working surface 210 of the storage table 200 through the first heating channel 300 after the heater 100 is turned on, thereby heating the sample plate 700 placed on the working surface 210. In addition, after the heater 100 is turned on, hot air can be generated from the first air outlet 221 and the second air outlet 231 and blown toward the sample plate 700 placed on the working surface 210, thereby also heating the sample plate 700. Such a sample plate heating device can automatically heat the sample plate 700 placed on the working surface 210, with a higher degree of automation, and can avoid the problems of low efficiency and poor experimental results caused by manual operation during the heating of the sample plate 700.

[0033] In one embodiment of the present invention, see Figure 1 、 Figure 2 and Figure 3The second heating channel 220, the third heating channel 230 and the working surface 210 can enclose a limiting groove 250, and the sample point plate 700 can be placed in the limiting groove 250. Exemplarily, the first air outlet 221 and / or the second air outlet 231 can be higher than the sample point plate 700. In such a sample point plate heating device, the sample point plate 700 is placed in the limiting groove 250, which can make the position of the sample point plate 700 more stable, so that the overall device can be more stable. Moreover, when the sample point plate 700 is placed on the working surface 210, the working surface 210 can be positioned by the limiting groove 250, so that the sample point plate 700 can be placed on the working surface 210 more simply and conveniently.

[0034] Exemplarily, the shortest distance between the first air outlet 221 and the working surface 210 can be 18-22 mm. For example, the shortest distance between the first air outlet 221 and the working surface 210 can be 18 mm, 19 mm, 20.5 mm or 22 mm. When the shortest distance between the first air outlet 221 and the working surface 210 is too large, the hot air flowing out of the first air outlet 221 needs to flow a long distance to reach the sample point plate 700 on the working surface 210, so that the heating effect of the first air outlet 221 on the sample point plate 700 is poor. When the shortest distance between the first air outlet 221 and the working surface 210 is too small, the hot air flowing out of the first air outlet 221 only needs to flow a short distance to reach the sample point plate 700 on the working surface 210, so that the hot air flowing to the sample point plate 700 has a large flow rate and a high temperature, which can adversely affect the sample point plate 700. When the shortest distance between the first air outlet 221 and the working surface 210 is 18-22 mm, the hot air flowing out of the first air outlet 221 has a better heating and color developing effect on the sample point plate 700 on the working surface 210.

[0035] Exemplarily, the shortest distance between the second air outlet 231 and the working surface 210 can be 18-22 mm. For example, the shortest distance between the second air outlet 231 and the working surface 210 can be 18 mm, 19.3 mm, 21 mm or 22 mm. When the shortest distance between the second air outlet 231 and the working surface 210 is too large, the hot air flowing out of the second air outlet 231 needs to flow a long distance to reach the sample point plate 700 on the working surface 210, so that the heating effect of the second air outlet 231 on the sample point plate 700 is poor. When the shortest distance between the second air outlet 231 and the working surface 210 is too small, the hot air flowing out of the second air outlet 231 only needs to flow a short distance to reach the sample point plate 700 on the working surface 210, so that the hot air flowing to the sample point plate 700 has a large flow rate and a high temperature, which can adversely affect the sample point plate 700. When the shortest distance between the second air outlet 231 and the working surface 210 is 18-22 mm, the hot air flowing out of the second air outlet 231 has a better heating and color developing effect on the sample point plate 700 on the working surface 210.

[0036] For example, see Figure 4A , the angle (angle A shown in the figure) between the blowing direction of the first air outlet 221 and the plane where the working surface 210 is located can be 25-35°. For example, the angle A between the blowing direction of the first air outlet 221 and the plane where the working surface 210 is located can be 25°, 27°, 31.8°, 33° or 35°. Preferably, the angle A between the blowing direction of the first air outlet 221 and the plane where the working surface 210 is located can be 30°. When the angle A between the blowing direction of the first air outlet 221 and the plane where the working surface 210 is located is too large, the hot air flowing out of the first air outlet 221 can only heat the side of the dot pattern plate 700 on the working surface 210 close to the first air outlet 221, so the heating effect on the dot pattern plate 700 is not good. If the angle A between the blowing direction of the first air outlet 221 and the plane of the working surface 210 is too small, the hot air flowing out of the first air outlet 221 can only heat the side of the dot pattern plate 700 on the working surface 210 away from the first air outlet 221, which results in a poor heating effect on the dot pattern plate 700. When the angle A between the blowing direction of the first air outlet 221 and the plane of the working surface 210 is 25-35 degrees, the hot air flowing out of the first air outlet 221 can generally heat the central area of ​​the dot pattern plate 700, and such a dot pattern plate heating device can achieve a better effect of heating and coloring the dot pattern plate 700.

[0037] For example, see Figure 4A , the angle between the blowing direction of the second air outlet 231 and the plane where the working surface 210 is located (angle B shown in the figure) can be 25-35°. For example, the angle B between the blowing direction of the second air outlet 231 and the plane where the working surface 210 is located can be 25°, 28°, 30°, 33.1° or 35°. Preferably, the angle B between the blowing direction of the second air outlet 231 and the plane where the working surface 210 is located can be 30°. When the angle B between the blowing direction of the second air outlet 231 and the plane where the working surface 210 is located is too large, the hot air flowing out of the second air outlet 231 can only heat the side of the dot pattern plate 700 on the working surface 210 close to the second air outlet 231, so the heating effect on the dot pattern plate 700 is not good. If the angle B between the blowing direction of the second air outlet 231 and the plane of the working surface 210 is too small, the hot air flowing out of the second air outlet 231 can only heat the side of the dot pattern plate 700 on the working surface 210 away from the second air outlet 231, which results in a poor heating effect on the dot pattern plate 700. When the angle B between the blowing direction of the second air outlet 231 and the plane of the working surface 210 is 25-35 degrees, the hot air flowing out of the second air outlet 231 can generally heat the central area of ​​the dot pattern plate 700, and such a dot pattern plate heating device can achieve a better effect of heating and coloring the dot pattern plate 700.

[0038] In one embodiment of the present invention, see Figure 1 The storage platform 200 may be provided with a connecting plate 260, which may be provided with an opening. The first heating channel 300 may pass through the opening to communicate with the cavity 240. In a second direction perpendicular to the first direction XX (direction YY in the figure), a heat insulating member 400 may be provided on at least one side of the connecting plate 260. The connecting plate 260 may be formed by integral processing with the heat insulating member 400. In this case, the connecting plate 260 may be a side plate of the heat insulating member 400. The connecting plate 260 may also be separately processed from the heat insulating member 400 and connected together by welding, threaded connection, or any other suitable form. In this case, the connecting plate 260 may be a separate plate or any other suitable structure. The provision of the connecting plate 260 can provide better support for the storage platform 200. Hot air flows in the first heating channel 300, so the temperature of the outer side of the first heating channel 300 is usually higher. When the heat insulating member 400 is provided on the side of the connecting plate 260 close to the storage table 200, the setting of the heat insulating member 400 can prevent the higher temperature from damaging the outer side of the storage table 200; when the heat insulating member 400 is provided on the side of the connecting plate 260 away from the storage table 200, since the storage table 200, the connecting plate 260 and the heat insulating member 400 are usually provided in the box body 600, the setting of the heat insulating member 400 can prevent the higher temperature from damaging the box body 600.

[0039] In one embodiment of the present invention, see Figure 5 , a storage plate 500 may be provided on the working surface 210, and a plurality of support protrusions 510 protruding away from the working surface 210 may be provided on the storage plate 500. The support protrusions 510 may protrude perpendicularly to the working surface 210, or may protrude at a certain angle to the working surface 210. The support protrusions 510 may be of any suitable shape and size. The plurality of support protrusions 510 may surround a positioning area, and the spotting plate 700 may be placed on the storage plate 500, and the spotting plate 700 may be limited in the positioning area. For example, as Figure 5 As shown, the placement plate 500 may be provided with support protrusions 510 at the four corners. The four support protrusions 510 may position the dot pattern plate 700, and the four support protrusions 510 may surround a positioning area. The four support protrusions 510 may limit the dot pattern plate 700 within the positioning area. In such a dot pattern plate heating device, for the positioning area surrounded by multiple support protrusions 510, since the multiple support protrusions 510 limit the dot pattern plate 700, when placing the dot pattern plate 700 in the positioning area or taking the dot pattern plate 700 out of the positioning area, the dot pattern plate 700 may be grabbed from different directions. For example, Figure 5In the illustrated embodiment, the dot pattern plate 700 can be placed in the positioning area by gripping two opposing sides along a first direction XX. When removing the dot pattern plate 700 from the positioning area, the dot pattern plate 700 can be gripped by two opposing sides along a third direction (direction ZZ in the figure). In this way, when a robot or other form of handling device is used to place the dot pattern plate 700 in the positioning area on the storage plate 500 or to remove the dot pattern plate 700 from the positioning area on the storage plate 500, it is possible to clearly observe and determine whether the current operation is placing or removing the dot pattern plate 700. This dot pattern plate heating device is more suitable for equipment with a high level of automation.

[0040] For example, see Figure 2 、 Figure 3 and Figure 5 , a positioning post 270 may be protruded from the outer surface of the storage platform 200 along a third direction (direction ZZ in the figure), the third direction ZZ is perpendicular to the first direction XX, and both the third direction ZZ and the first direction XX are parallel to the plane where the work surface 210 is located. A mounting plate 520 may be provided on the storage plate 500, and the mounting plate 520 may be perpendicular to the third direction ZZ. A mounting through-hole 521 may be provided on the mounting plate 520, and the positioning post 270 may be inserted into the mounting through-hole 521. The positioning post 270 may be inserted into the mounting through-hole 521 by snapping, simple overlapping, or other various forms. By inserting the positioning post 270 into the mounting through-hole 521, the storage plate 500 can be positioned, and in this way, setting the storage plate 500 on the storage platform 200 can be simpler and more convenient, and the overall structure can also be simpler.

[0041] In one embodiment of the present invention, there may be a gap between the first air outlet 221 and the second air outlet 231. Figure 3 and Figure 4A , there may be a gap C between the first air outlet 221 and the second air outlet 231. The dot pattern plate heating device may include an image acquisition component (not shown in the figure), which may be of any suitable form. The image acquisition component may capture the color development of the dot pattern plate 700 placed on the working surface 210 through the gap C. The color development of the dot pattern plate 700 can be observed through the image acquisition component, so that timely adjustments can be made when problems arise in the heating and color development of the dot pattern plate 700, and the dot pattern plate 700 can also be taken out in time after the heating and color development of the dot pattern plate 700 is completed. Such a dot pattern plate heating device as a whole can be more efficient in heating and coloring the dot pattern plate 700.

[0042] In one embodiment of the present invention, the sample plate heating device may include a housing 600, the storage table 200, the second heating channel 220, and the third heating channel 230 may all be located inside the housing 600, the heater 100 may be located outside the housing 600, and the first heating channel 300 may pass through a side surface of the housing 600 and communicate between the storage table 200 and the heater 100. The housing 600 may be of any suitable form. The housing 600 may protect the storage table 200 and the sample plate 700 placed on the work surface 210, preventing the sample plate 700 from being disturbed by external environmental factors during the heating and coloring process. Such a sample plate heating device can achieve a better heating and coloring effect on the sample plate 700.

[0043] For example, the housing 600 may be provided with an air outlet passage (not shown in the figure), which allows the interior of the housing 600 to be connected to the outside through the air outlet passage. An air outlet passage connected to the outside may be provided on the side of the housing 600. The air outlet passage may be a pipe or any other suitable form. The air outlet passage provided on the housing 600 can prevent the internal temperature of the housing 600 from being too high.

[0044] For example, see Figure 1 An operation window 610, a door body 620 and a driving member 630 may be provided on the box body 600. The sample plate 700 may be placed on the working surface 210 through the operation window 610. The driving member 630 may be connected to the door body 620. The door body 620 may be moved between a first position of covering the operation window 610 and a second position of opening the operation window 610 by the driving member 630. When the sample plate heating device is idle, or when the sample plate heating device is heating and coloring the sample plate 700 placed on the work surface 210, the driver 630 can control the door 620 to cover the operation window 610, that is, the driver 630 can move the door 620 to the first position. When the sample plate 700 needs to be placed on the work surface 210 or removed from the work surface 210, the driver 630 can control the door 620 to open the operation window 610, that is, the driver 630 can move the door 620 to the second position. Such a sample plate heating device can achieve a higher level of automation.

[0045] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0046] For ease of description, area-relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figures, but also different orientations in use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0048] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0049] The utility model discloses has been through the above embodiment has been explained, but should understand, the above embodiment is only for the purpose of example and illustration, and is not intended to limit the utility model to the range of described embodiment. In addition, those skilled in the art can understand that the utility model is not limited to the above embodiment, and more kinds of variations and modifications can be made according to the teaching of the utility model, and the variations and modifications all fall within the range of the utility model claimed. The protection scope of the utility model is defined by the attached claims and its equivalent range.

Claims

1. A sample plate heating device, characterized in that: It includes a heater and a storage table, the storage table has a working surface on which a spotting plate can be placed, a cavity is formed inside the storage table, the cavity is connected to the heater through a first heating channel, and the cavity extends on two opposite sides in a first direction to form a second heating channel and a third heating channel, a first air outlet is formed on an end of the second heating channel away from the cavity, and a second air outlet is formed on an end of the third heating channel away from the cavity, and the first air outlet and the second air outlet blow air toward the working surface.

2. The spot plate heating device according to claim 1, characterized in that: The second heating channel, the third heating channel and the working surface are enclosed to form a limiting groove, and the spotting plate can be placed in the limiting groove.

3. The spotting plate heating device according to claim 1, characterized in that: The shortest distance between the first air outlet and the working surface is 18-22 mm; And / or, the shortest distance between the second air outlet and the working surface is 18-22 mm.

4. The spot plate heating device according to claim 1, characterized in that: The angle between the blowing direction of the first air outlet and the plane where the working surface is located is 25-35°; And / or, the angle between the blowing direction of the second air outlet and the plane where the working surface is located is 25-35°.

5. The spot plate heating device according to claim 1, characterized in that: A connecting plate is provided on the storage table, an opening is provided on the connecting plate, the first heating channel is connected to the cavity through the opening, and a heat insulating member is provided on at least one side of the connecting plate in a second direction perpendicular to the first direction.

6. The spot plate heating device according to claim 1, characterized in that: A storage plate is provided on the working surface, and a plurality of supporting protrusions are provided on the storage plate, which protrude away from the working surface. A positioning area is formed by surrounding the plurality of supporting protrusions. The spotting plate can be placed on the storage plate, and the spotting plate is limited in the positioning area.

7. The spotting plate heating device according to claim 6, characterized in that: A positioning column is provided on the outer surface of the storage table protruding along a third direction, the third direction is perpendicular to the first direction, and the third direction and the first direction are both parallel to the plane where the work surface is located; The storage plate is provided with a mounting plate, the mounting plate is perpendicular to the third direction, the mounting plate is provided with a mounting through hole, and the positioning column is passed through the mounting through hole.

8. The spotting plate heating device according to claim 1, characterized in that: The dot pattern plate heating device includes an image acquisition component. There is a gap between the first air outlet and the second air outlet. The image acquisition component acquires the color of the dot pattern plate placed on the work surface through the gap.

9. The spotting plate heating device according to claim 1, characterized in that: The sample plate heating device includes a box body, the storage table, the second heating channel and the third heating channel are all located inside the box body, the heater is located outside the box body, and the first heating channel passes through a side surface of the box body and connects between the storage table and the heater.

10. The spotting plate heating device according to claim 9, characterized in that: The box body is provided with an air outlet channel, and the interior of the box body is connected to the outside through the air outlet channel.

11. The spotting plate heating device according to claim 9, characterized in that: The box body is provided with an operation window, a door body and a driving member. The spotting plate is placed on the working surface through the operation window. The driving member is connected to the door body. The door body moves between a first position covering the operation window and a second position opening the operation window through the driving member.

12. A spotting device, characterized in that: The invention comprises a transport device and a spotting plate heating device according to any one of claims 1 to 11, wherein the transport device places the spotting plate on the working surface or takes the spotting plate out from the working surface.

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