A thermostated sample test holder

Abstract

A constant-temperature sample test rack, comprising a base, a first rectangular block and a second rectangular block are fixedly installed at the top end of the base, first rectangular holes are arranged in equal intervals from left to right on the top of the first rectangular block, the rear end of the first rectangular hole is completely open, the first rectangular block and the second rectangular block are used for maintaining the constant-temperature state of the test sample, the clamping device is slidably installed with the first rectangular block, and the clamping device is used for clamping and fixing the test sample. By adopting the above technical scheme, the first rectangular block and the second rectangular block are closely fitted, a cooperative constant-temperature maintenance system can be formed, heat transfer is more uniform and stable, local temperature fluctuation is avoided to affect the test result of the sample, and the combination structure of the double rectangular blocks can enhance the heat preservation performance of the whole, reduce the interference of the change of the external environment temperature on the sample, so that the test sample can be ensured to be in a stable constant-temperature state for a long time.

Description

Technical Field

[0001] This utility model relates to the field of sample testing, and in particular to a constant temperature sample testing rack. Background Technology

[0002] Samples are highly sensitive to temperature during testing and characterization. In scenarios such as biochemical reactions, cell culture and microscopic imaging, materials mechanical and electrical property testing, semiconductor device characterization, and electrochemical testing, even minute temperature fluctuations can cause significant changes in reaction rates, material phase behavior, carrier mobility, ion diffusion coefficients, and optical imaging quality. Therefore, providing a stable, uniform, and repeatable temperature-controlled environment for samples under open or semi-open operating conditions has become a common requirement in laboratories and production lines.

[0003] The above-mentioned existing technical solutions have the following drawbacks: the temperature field distribution of the table or fixture is uneven, the temperature difference between the edge and the center is large, and the sample is also affected by changes in ambient temperature, airflow disturbance and heat load fluctuation. If the sample has a large contact area with the constant temperature test frame, uneven temperature and heat accumulation are likely to occur. The heat dissipation side requires a heat sink and air duct of considerable volume. Noise and vibration may affect the precision measurement. Utility Model Content

[0004] The purpose of this invention is to provide a constant-temperature sample testing rack to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A constant-temperature sample testing rack includes a base. A first rectangular block and a second rectangular block are fixedly mounted on the top of the base. The top of the first rectangular block has first rectangular holes that penetrate vertically from left to right at equal intervals, and the rear ends of the first rectangular holes are completely open. The front end face of the first rectangular block has first oblong holes that penetrate front to back at equal intervals from left to right, and the number of the first oblong holes is the same as the number of the first rectangular holes. The rear end face of the second rectangular block has second oblong holes that penetrate front to back at equal intervals from left to right, and the number of the second oblong holes is the same as the number of the first oblong holes. The axis of the second oblong holes is collinear with the axis of the first oblong holes. Both the first and second rectangular blocks are used to maintain the constant temperature of the test sample. A clamping device is slidably mounted on the first rectangular block and is used to clamp and fix the test sample.

[0007] By adopting the above technical solution, the first rectangular block and the second rectangular block are closely fitted together to form a synergistic constant temperature maintenance system, which makes the heat transfer more uniform and stable, avoids the impact of local temperature fluctuations on the sample test results, and the combination structure of the two rectangular blocks can enhance the overall thermal insulation performance and reduce the interference of external ambient temperature changes on the sample, thereby ensuring that the test sample is in a stable constant temperature state for a long time.

[0008] In a further embodiment, the top of the first rectangular block is provided with first rectangular holes that extend vertically through it from left to right at equal intervals. The rear end face of the first rectangular holes is completely open. The top left and right ends of the first rectangular block are provided with first circular holes with their axes vertically aligned. The top of the left end face of the first rectangular block is provided with a second circular hole with its axis aligned horizontally. The second circular hole communicates with the first circular hole. The bottom of the second circular hole is provided with a third circular hole with its axis aligned horizontally. The third circular hole communicates with the first circular hole. The bottom of the front end face of the first rectangular block is provided with a fourth circular hole with its axis aligned front to back. The fourth circular hole communicates with the first and third circular holes.

[0009] By adopting the above technical solution, this interconnected design can realize the convergence and interconnection of channels in multiple different directions, so that a small three-dimensional interconnected network is formed inside the first rectangular block, which improves the practicality and reliability of the first rectangular block.

[0010] In a further embodiment, a screw plug is fixedly installed at the top of the first circular hole, and a sealing ring is provided between the screw plug and the first circular hole. A tube connector is fixedly installed on the left side of the first rectangular block, and the axis of the tube connector is collinear with the axis of the second circular hole. A screw plug is fixedly installed at the left end of the third circular hole, and a sealing ring is provided between the screw plug and the third circular hole. A tube connector is fixedly installed on the front side of the first rectangular block, and the axis of the tube connector is collinear with the axis of the fourth circular hole.

[0011] By adopting the above technical solutions, the airtightness of the internal fluid system of the device is ensured, avoiding pressure loss, media waste or environmental pollution caused by leakage.

[0012] In a further embodiment, a fifth circular hole is provided at both the left and right ends of the top of the second rectangular block, and the axis of the fifth circular hole is vertically arranged. A sixth circular hole is provided at the top of the left end face of the second rectangular block, and the axis of the sixth circular hole is arranged horizontally. The sixth circular hole communicates with the fifth circular hole. A seventh circular hole is provided at the bottom of the sixth circular hole, and the axis of the seventh circular hole is arranged horizontally. The seventh circular hole communicates with the fifth circular hole. An eighth circular hole is provided at the bottom of the rear end face of the second rectangular block, and the axis of the eighth circular hole is arranged front-back. The eighth circular hole communicates with the fifth and seventh circular holes.

[0013] By adopting the above technical solution, this interconnected design can realize the convergence and interconnection of channels in multiple different directions, so that a small three-dimensional interconnected network is formed inside the first rectangular block, which improves the practicality and reliability of the first rectangular block.

[0014] In a further embodiment, a screw plug is fixedly installed at the top of the fifth circular hole, and a sealing ring is provided between the screw plug and the fifth circular hole. A tube connector is fixedly installed on the left side of the second rectangular block, and the axis of the tube connector is collinear with the axis of the sixth circular hole. A screw plug is fixedly installed at the left end of the seventh circular hole, and a sealing ring is provided between the screw plug and the seventh circular hole. A tube connector is fixedly installed on the rear side of the second rectangular block, and the axis of the tube connector is collinear with the axis of the eighth circular hole.

[0015] By adopting the above technical solutions, the airtightness of the internal fluid system of the device is ensured, avoiding pressure loss, media waste or environmental pollution caused by leakage.

[0016] In a further embodiment, the clamping device includes a mounting plate, which is detachably mounted on the top of the first rectangular block. The top of the mounting plate is provided with an integrally formed protrusion, and the bottom of the mounting plate is provided with integrally formed rectangular protrusions spaced apart from left to right. The number of rectangular protrusions is the same as the number of first rectangular holes. The rectangular protrusions are inserted into the first rectangular holes. The bottom end face of the mounting plate is in contact with the top end face of the first rectangular block. The front end face of the rectangular protrusion is provided with a second rectangular hole that extends through the front and rear. The axis of the second rectangular hole is collinear with the axis of the first oblong hole.

[0017] By adopting the above technical solutions, the structural strength and stability of the entire clamping device are enhanced, ensuring that the clamping device can maintain a good clamping effect during operation and is not prone to loosening or displacement.

[0018] In summary, this utility model has the following beneficial effects:

[0019] 1. By setting up the first and second rectangular blocks, the sample can be kept at a constant temperature;

[0020] 2. The mounting plate inserted into the first rectangular hole can effectively clamp samples of different sizes.

[0021] 3. By setting up various circular holes in the first and second rectangular blocks, the liquid can circulate. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the connection relationship between the first rectangular block, the second rectangular block, and the base;

[0023] Figure 2 It is a cross-sectional view of the interior of the first rectangular block;

[0024] Figure 3 This is a cross-sectional view of the interior of the second rectangular block;

[0025] Figure 4 This is a schematic diagram of the structural connection between the mounting plate and the first rectangular block.

[0026] In the diagram, 1. Base; 2. First rectangular block; 3. Second rectangular block; 4. First rectangular hole; 5. First round hole; 6. Plug; 7. Second round hole; 8. Insertion tube connector; 9. Third round hole; 10. Fourth round hole; 11. First oblong hole; 12. Fifth round hole; 13. Sixth round hole; 14. Seventh round hole; 15. Eighth round hole; 16. Second oblong hole; 17. Mounting plate; 18. Protrusion; 19. Rectangular protrusion; 20. Second rectangular hole. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0029] Example 1:

[0030] like Figures 1-4As shown, a constant-temperature sample testing rack includes a base 1, with a first rectangular block 2 and a second rectangular block 3 fixedly mounted on the top of the base 1. The top of the first rectangular block 2 has vertically penetrating first rectangular holes 4 arranged at equal intervals from left to right, with the rear ends of the first rectangular holes 4 completely open. The front face of the first rectangular block 2 has horizontally penetrating first oblong holes 11 arranged at equal intervals from left to right, with the number of first oblong holes 11 matching the number of first rectangular holes 4. The rear face of the second rectangular block 3 has horizontally penetrating second oblong holes 16 arranged at equal intervals from left to right, with the number of second oblong holes 16 matching the number of first oblong holes 11. The axes of the second oblong holes 16 and the first oblong holes 11 are collinear. Both the first rectangular block 2 and the second rectangular block 3 are used to maintain the constant temperature of the test sample. A clamping device is also included, which is slidably mounted on the first rectangular block 2 and is used to clamp and fix the test sample. The top of the first rectangular block 2 has vertically penetrating first rectangular holes 4 arranged at equal intervals from left to right. The rear end face of the first rectangular holes 4 is completely open. The top left and right ends of the first rectangular block 2 are provided with first circular holes 5. The axis of the first circular holes 5 is vertically arranged. The top of the left end face of the first rectangular block 2 is provided with a second circular hole 7. The axis of the second circular hole 7 is arranged horizontally. The second circular hole 7 is connected to the first circular hole 5. The bottom of the second circular hole 7 is provided with a third circular hole 9. The axis of the third circular hole 9 is arranged horizontally. The third circular hole 9 is connected to the first circular hole 5. The bottom of the front end face of the first rectangular block 2 is provided with a fourth circular hole 10. The axis of the fourth circular hole 10 is arranged front to back. The fourth circular hole 10 is connected to the first circular hole 5 and the third circular hole 9. A screw plug 6 is fixedly installed at the top of the first circular hole 5, and a sealing ring is provided between the screw plug 6 and the first circular hole 5. A tube connector 8 is fixedly installed on the left side of the first rectangular block 2, and the axis of the tube connector 8 is collinear with the axis of the second circular hole 7. A screw plug 6 is fixedly installed at the left end of the third circular hole 9, and a sealing ring is provided between the screw plug 6 and the third circular hole 9. A tube connector 8 is fixedly installed on the front side of the first rectangular block 2, and the axis of the tube connector 8 is collinear with the axis of the fourth circular hole 10. The second rectangular block 3 has a fifth circular hole 12 at both the top left and right ends, with the axis of the fifth circular hole 12 being vertically set. The top of the left end face of the second rectangular block 3 has a sixth circular hole 13, with the axis of the sixth circular hole 13 being horizontally set. The sixth circular hole 13 is connected to the fifth circular hole 12. The bottom of the sixth circular hole 13 has a seventh circular hole 14, with the axis of the seventh circular hole 14 being horizontally set. The seventh circular hole 14 is connected to the fifth circular hole 12. The bottom of the rear end face of the second rectangular block 3 has an eighth circular hole 15, with the axis of the eighth circular hole 15 being front-to-back set. The eighth circular hole 15 is connected to the fifth circular hole 12 and the seventh circular hole 14.A screw plug 6 is fixedly installed at the top of the fifth circular hole 12, and a sealing ring is provided between the screw plug 6 and the fifth circular hole 12. A tube connector 8 is fixedly installed on the left side of the second rectangular block 3, and the axis of the tube connector 8 is collinear with the axis of the sixth circular hole 13. A screw plug 6 is fixedly installed at the left end of the seventh circular hole 14, and a sealing ring is provided between the screw plug 6 and the seventh circular hole 14. A tube connector 8 is fixedly installed on the rear side of the second rectangular block 3, and the axis of the tube connector 8 is collinear with the axis of the eighth circular hole 15. The test samples are divided into two categories: large-sized samples and small-sized samples. When the test sample is large-sized, no clamping device is needed. When the test sample is small-sized, a clamping device is needed. The clamping device includes a mounting plate 17, which is detachably mounted on the top of the first rectangular block 2. The top of the mounting plate 17 is provided with an integrally formed protrusion 18. The bottom of the mounting plate 17 is provided with integrally formed rectangular protrusions 19 spaced apart from left to right. The number of rectangular protrusions 19 is the same as the number of first rectangular holes 4. The rectangular protrusions 19 are inserted into the first rectangular holes 4. The bottom end face of the mounting plate 17 is in contact with the top end face of the first rectangular block 2. The front end face of the rectangular protrusions 19 is provided with a second rectangular hole 20 that runs through the front and back. The axis of the second rectangular hole 20 is collinear with the axis of the first waist-shaped hole 11.

[0031] Specific implementation process: The first rectangular block 2 and the second rectangular block 3 are fixedly installed on the base 1. There are two types of sample specifications to be tested: one large size and one small size. When the test sample is small size, the small size sample is placed into the first rectangular hole 4 of the first rectangular block 2. The rectangular protrusion 19 at the bottom of the mounting plate 17 is inserted into the first rectangular hole 4, so that the bottom end face of the mounting plate 17 is in contact with the top end face of the first rectangular block 2. Then, the protrusion 18 at the top of the mounting plate 17 is pushed to make the small size sample fit tightly against the first rectangular block 2. When the test sample is large size, at this time... Without the installation plate 17, large-sized samples can be directly placed into the first rectangular hole 4 of the first rectangular block 2. After the sample is fixed, the tube connectors of the first rectangular block 2 and the second rectangular block 3 are connected to the constant temperature liquid medium, which causes the constant temperature liquid medium to circulate in the first circular hole 5, the second circular hole 7, the third circular hole 9 and the fourth circular hole 10 of the first rectangular block 2, and at the same time circulate in the fifth circular hole 12, the sixth circular hole 13, the seventh circular hole 14 and the eighth circular hole 15 of the second rectangular block 3, to ensure that the temperature of the entire test frame is maintained at the constant temperature level required by the sample.

[0032] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0033] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A thermostated sample test holder comprising a base (1), characterised in that: The top of the base (1) is fixedly installed with a first rectangular block (2) and a second rectangular block (3). The top of the first rectangular block (2) is provided with first rectangular holes (4) that pass through from top to bottom at equal intervals from left to right. The rear end of the first rectangular hole (4) is completely open. The front end of the first rectangular block (2) is provided with first waist-shaped holes (11) that pass through from front to back at equal intervals from left to right. The number of first waist-shaped holes (11) is the same as the number of first rectangular holes (4). The rear end of the second rectangular block (3) is provided with second waist-shaped holes (16) that pass through from front to back at equal intervals from left to right. The number of second waist-shaped holes (16) is the same as the number of first waist-shaped holes (11). The axis of the second waist-shaped hole (16) is collinear with the axis of the first waist-shaped hole (11). The first rectangular block (2) and the second rectangular block (3) are both used to maintain the constant temperature state of the test sample. The clamping device is slidably mounted with the first rectangular block (2) and is used to clamp and fix the test sample.

2. A thermostated sample holder according to claim 1, characterized in that: The top of the first rectangular block (2) is provided with first rectangular holes (4) that pass through vertically from left to right at equal intervals. The rear end face of the first rectangular hole (4) is completely open. The top left and right ends of the first rectangular block (2) are provided with first circular holes (5). The axis of the first circular holes (5) is vertically set. The top of the left end face of the first rectangular block (2) is provided with a second circular hole (7). The axis of the second circular hole (7) is set horizontally. The second circular hole (7) is connected to the first circular hole (5). The bottom of the second circular hole (7) is provided with a third circular hole (9). The axis of the third circular hole (9) is set horizontally. The third circular hole (9) is connected to the first circular hole (5). The bottom of the front end face of the first rectangular block (2) is provided with a fourth circular hole (10). The axis of the fourth circular hole (10) is set front and back. The fourth circular hole (10) is connected to the first circular hole (5) and the third circular hole (9).

3. A thermostated sample holder according to claim 2, characterized in that: A screw plug (6) is fixedly installed at the top of the first circular hole (5), and a sealing ring is provided between the screw plug (6) and the first circular hole (5). A tube connector (8) is fixedly installed on the left side of the first rectangular block (2), and the axis of the tube connector (8) is collinear with the axis of the second circular hole (7). A screw plug (6) is fixedly installed at the left end of the third circular hole (9), and a sealing ring is provided between the screw plug (6) and the third circular hole (9). A tube connector (8) is fixedly installed on the front side of the first rectangular block (2), and the axis of the tube connector (8) is collinear with the axis of the fourth circular hole (10).

4. A thermostated sample holder according to claim 1, characterized in that: The second rectangular block (3) has a fifth circular hole (12) at both the top left and right ends. The axis of the fifth circular hole (12) is vertically set. The top of the left end face of the second rectangular block (3) has a sixth circular hole (13). The axis of the sixth circular hole (13) is set horizontally. The sixth circular hole (13) is connected to the fifth circular hole (12). The bottom of the sixth circular hole (13) has a seventh circular hole (14). The axis of the seventh circular hole (14) is set horizontally. The seventh circular hole (14) is connected to the fifth circular hole (12). The bottom of the rear end face of the second rectangular block (3) has an eighth circular hole (15). The axis of the eighth circular hole (15) is set front and back. The eighth circular hole (15) is connected to the fifth circular hole (12) and the seventh circular hole (14).

5. A thermostated sample holder according to claim 4, characterized in that: A screw plug (6) is fixedly installed at the top of the fifth circular hole (12), and a sealing ring is provided between the screw plug (6) and the fifth circular hole (12). A tube connector (8) is fixedly installed on the left side of the second rectangular block (3), and the axis of the tube connector (8) is collinear with the axis of the sixth circular hole (13). A screw plug (6) is fixedly installed at the left end of the seventh circular hole (14), and a sealing ring is provided between the screw plug (6) and the seventh circular hole (14). A tube connector (8) is fixedly installed on the rear side of the second rectangular block (3), and the axis of the tube connector (8) is collinear with the axis of the eighth circular hole (15).

6. A thermostated sample holder according to claim 1, characterized in that: The clamping device includes a mounting plate (17), which is detachably mounted on the top of the first rectangular block (2). The top of the mounting plate (17) is provided with an integrally formed protrusion (18), and the bottom of the mounting plate (17) is provided with integrally formed rectangular protrusions (19) spaced apart from left to right. The number of rectangular protrusions (19) is the same as the number of first rectangular holes (4). The rectangular protrusions (19) are inserted into the first rectangular holes (4). The bottom end face of the mounting plate (17) is in contact with the top end face of the first rectangular block (2). The front end face of the rectangular protrusions (19) is provided with a second rectangular hole (20) that runs through the front and back. The axis of the second rectangular hole (20) is collinear with the axis of the first waist-shaped hole (11).

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