Adjustable sample holder of thermal constant analyzer

Abstract

The utility model provides an adjustable sample holder for a thermal constant analyzer. The adjustable sample holder comprises a base, the lifting mechanism is arranged at the top end of the base and is used for adjusting the heights of the sample I and the sample II; the first adjusting mechanism is arranged at the top end of the base and in front of the platform; the first adjusting mechanism comprises a first telescopic rod and a second telescopic rod, one end of the second telescopic rod is provided with a first plate and a second plate which are used for clamping a test probe, and the first plate is provided with a clamping assembly used for clamping the test probe. The positions of the probe and the sample table can be adjusted according to the height of a sample, operation is easy, and the situation that the probe is bent due to the fact that the sample table slides off can be avoided.

Description

Technical Field

[0001] The utility model relates to a sample rack of an adjustable thermal constant analyzer. Background Art

[0002] HotDisk thermal constant analyzer is a high-precision instrument for measuring the thermal conductivity of materials based on the transient plane heat source method. It can determine thermal physical parameters such as thermal conductivity, thermal diffusivity and specific heat capacity of materials. It is a high-precision analytical instrument used to test the thermal conductivity of materials. The thermal constant analyzer test requires two identical samples, one above and one below, to clamp the probe. The surface of the sample in contact with the probe must be flat. The position of the test probe in the test device is fixed. For samples of different thicknesses to be tested, the height of the sample stage can only be adjusted to accommodate the test probe. However, in actual use, the height of the sample stage has specific size restrictions. If the sample height exceeds the accommodation range of the sample stage, testing may not be possible. Therefore, in order to better adapt to the testing needs of samples of different heights, improvements are made. Utility Model Content

[0003] The utility model provides an adjustable thermal constant analyzer sample rack, which can effectively solve the above problems.

[0004] The utility model is achieved in this way:

[0005] An adjustable thermal constant analyzer sample holder includes a base;

[0006] A lifting mechanism, which is provided at the top of the base and is used to adjust the height of sample 1 and sample 2;

[0007] a first adjustment mechanism disposed at the top of the base and in front of the platform; the first adjustment mechanism comprising a first telescopic rod and a second telescopic rod, one end of the second telescopic rod being provided with a first plate and a second plate for clamping a test probe, the first plate being provided with a clamping assembly for clamping the test probe;

[0008] The second adjusting mechanism is arranged on both sides of the lifting mechanism and is used to fix the first sample and the second sample.

[0009] As a further improvement, the lifting mechanism includes base plates arranged in parallel, a first cross plate and a second cross plate arranged between the two base plates, a center rod arranged between the first cross plate and the second cross plate, a first connecting rod and a second connecting rod respectively arranged at both ends of the first cross plate and the second cross plate, a clearance groove formed on the base plate, and an adjusting member arranged on the first connecting rod and the second connecting rod; the platform is raised or / and lowered by movably connecting the two second connecting rods on the movable ends of the two first cross plates with the clearance groove, and fixing the first connecting rod and the second connecting rod by the adjusting member.

[0010] As a further improvement, a hollow groove for the movement of the clamping assembly is further formed on the first plate; the clamping assembly includes an elastic member arranged inside the hollow groove, and a clamping member is fixedly provided at one end of the elastic member.

[0011] As a further improvement, an adjusting bolt is provided between the first plate and the second plate, and a suction cup for adsorbing and fixing the test probe is provided on the second plate.

[0012] As a further improvement, a clamping groove for clamping the test probe is formed at the clamping end of the clamping member.

[0013] As a further improvement, the second adjustment mechanism includes a lifting rod, a locking clamp arranged on the lifting rod, a top plate arranged at one end of the two lifting rods, and a top screw threadedly connected to the middle of the top plate.

[0014] As a further improvement, the outer wall of the first telescopic rod is provided with a threaded connector for fixing the second telescopic rod.

[0015] The beneficial effects of the utility model are:

[0016] (1) In this case, a lifting mechanism is used to adjust the sample on the platform to a position parallel to the test probe, and then the second adjustment mechanism is used to tighten and fix sample one and sample two. The gasket can prevent the two samples from being damaged. Then, the test probe is locked and fixed by the first adjustment mechanism to ensure the stability of the test probe. In this way, the height range can be freely adjusted in the sample test of the thermal constant analyzer, and samples with a larger thickness range can be adapted. In addition, the lifting structure and the first adjustment mechanism can be used to achieve height lifting and position fixing. The position of the probe and the sample stage can be adjusted according to the height of the sample. The operation is simple and can prevent the sample stage from slipping and causing the probe to bend. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is the main view of the present utility model.

[0019] Figure 2 It is a front view of the present utility model.

[0020] Figure 3 It is a structural diagram of the first adjusting mechanism of the utility model.

[0021] Figure 4 It is a structural diagram of the first plate of the utility model.

[0022] Description of Figure Numbers:

[0023] 1. Base;

[0024] 2. Lifting mechanism; 20. Bottom plate; 21. Gap groove; 22. Platform; 23. First cross plate; 24. Second cross plate; 25. Center rod; 26. First connecting rod; 27. Second connecting rod; 28. Adjustment member;

[0025] 3. First adjustment mechanism; 30. First telescopic rod; 31. Second telescopic rod; 32. First plate; 320. Hollow groove; 321. Elastic member; 322. Clamping member; 33. Second plate; 34. Adjusting bolt; 35. Suction cup;

[0026] 4. Second adjustment mechanism; 40. Lifting rod; 41. Locking ring; 42. Top plate; 43. Top screw;

[0027] 5. Sample 1; 6. Sample 2; 7. Thermocouple; 8. Fixing parts; 9. Gasket. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the present invention.

[0029] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0030] Reference Figure 1-4 As shown, a sample holder for an adjustable thermal constant analyzer includes a base 1.

[0031] The lifting mechanism 2 arranged at the top of the base 1 is used to adjust the height of sample 1 5 and sample 2 6; the lifting mechanism 2 includes a base plate 20 arranged in parallel, a first cross plate 23 and a second cross plate 24 arranged between the two base plates 20, a center rod 25 arranged between the first cross plate 23 and the second cross plate 24, a first connecting rod 26 and a second connecting rod 27 respectively arranged at both ends of the first cross plate 23 and the second cross plate 24, a clearance groove 21 formed on the base plate 20, and an adjusting member 28 arranged on the first connecting rod 26 and the second connecting rod 27; the two second connecting rods 27 on the movable ends of the two first cross plates 23 are movably connected to the clearance groove 21, and the first connecting rod 26 and the second connecting rod 27 are fixed by the adjusting member 28, so that the platform 22 rises or / and falls.

[0032] When the thickness of the two samples is too thick or too thin, the test probe may not be able to test the samples. Therefore, when in use, the adjusting piece 28 set on the first connecting rod 26 and the second connecting rod 27 can be loosened and removed, and the second connecting rod 27 at one end of the two first cross plates 23 can be moved back and forth in the makeshift groove 21, while one end of the two second cross plates 24 is fixed. When the second connecting rod 27 moves, it will drive the second cross plates 24 to adjust the height upward at the same time. After adjusting to the appropriate height, the adjusting piece 28 is tightened and fixed to the first connecting rod 26 and the second connecting rod 27, so that the second connecting rod 27 no longer moves. In this way, the platform 22 can be fixed, and the two samples on the platform 22 can be parallel to the test probe, which is convenient for the test probe to detect the samples.

[0033] Among them, the platform 22 is detachably arranged on the first connecting rod 26 and the second connecting rod 27, and there are no fixed parts on the first connecting rod 26 and the second connecting rod 27. This design is to facilitate the replacement of platforms 22 of different sizes. If the platform 22 cannot be used due to depression or other reasons, it can be quickly disassembled and replaced.

[0034] As an embodiment of the present invention, both sides of the platform 22 can also be provided with the same structure as the base plate 20, such as a clearance groove 21, so that the first connecting rod 26 at the other end of the second cross plate 24 can be movably connected to the clearance groove 21 provided on both sides of the platform 22. In this way, the height of the platform 22 can be adjusted when the first cross plate 23 and the second cross plate 24 are raised and lowered. It should be noted that this connection method and the connection method of this embodiment each have their own advantages, and the specific implementation can be selected according to actual needs.

[0035] The first adjustment mechanism 3 is arranged at the top of the base 1 and in front of the platform 22; the first adjustment mechanism 3 includes a first telescopic rod 30 and a second telescopic rod 31, and one end of the second telescopic rod 31 is provided with a first plate 32 and a second plate 33 for clamping the test probe, and the first plate 32 is provided with a clamping assembly for clamping the test probe.

[0036] The outer wall of the first telescopic rod 30 is provided with a threaded connector for fixing the second telescopic rod 31 , so that when the second telescopic rod 31 is telescopically adjusted upward, the threaded connector can lock and fix the second telescopic rod 31 .

[0037] Furthermore, a fixing member 8 for fixing the thermocouple 7 is also provided on the platform 22 .

[0038] Furthermore, a hollow groove 320 for the movement of the clamping assembly is formed on the first plate 32; the clamping assembly includes an elastic member 321 arranged inside the hollow groove 320, and a clamping member 322 is fixedly provided at one end of the elastic member 321; a clamping groove for clamping the test probe is formed at the clamping end of the clamping member 322; an adjusting bolt 34 is provided between the first plate 32 and the second plate 33, and a suction cup 35 for adsorbing and fixing the test probe is provided on the second plate 33.

[0039] When securing a test probe, the conventional fixing structure uses two sets of bolts and a clamping plate to secure the test probe. However, in actual use, this conventional structure has certain drawbacks, such as the potential for damage to the test probe or the probe remaining stationary or moving left or right. In contrast, in this embodiment, a clamping member 322 is provided on the first plate 32 for securing the test probe. When the test probe is inserted between the first plate 32 and the second plate 33, the adjusting bolt 34 is rotated to lower the height. Once the height is lowered to a certain level, the suction cup 35 on the second plate 33 secures the test probe in place. The clamping member 322 is then moved left and right via the elastic member 321. Once it expands to a suitable space, the clamping member 322 is released. The elastic properties of the elastic member 321 directly engage the test probe with the clamping groove in the clamping member 322, preventing the test probe from moving left or right. Thus, in this embodiment, the test probe is fixed in position on the top, left, and right sides, providing greater stability.

[0040] Second adjustment mechanism 4 includes lifting rods 40, locking collars 41 mounted on lifting rods 40, a top plate 42 mounted at one end of each lifting rod 40, and a top screw 43 threadedly connected to the center of top plate 42. During use, after adjusting lifting rods 40 to the desired position, locking collars 41 are used to secure lifting rods 40. Then, top screw 43 is rotated to contact gasket 9 and press against sample 1 5, thereby clamping the test probe between sample 1 5 and sample 2 6, achieving a balanced test result.

[0041] In this case, the lifting mechanism 2 is used to adjust the sample on the platform 22 to a position parallel to the test probe, and then the second adjustment mechanism 4 is used to tightly fix sample 1 5 and sample 2 6. The gasket 9 can prevent the two samples from being damaged. Then, the test probe is locked and fixed by the first adjustment mechanism 3 to ensure the stability of the test probe. In this way, in the sample test of the thermal constant analyzer, the height range can be freely adjusted, and samples with a larger thickness range can be adapted. Moreover, the lifting structure 2 and the first adjustment mechanism 3 can be used to achieve height lifting and position fixing. The position of the probe and the sample stage can be adjusted according to the height of the sample. The operation is simple and can prevent the sample stage from slipping and causing the probe to bend.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An adjustable thermal constant analyzer sample holder, characterized in that: include Base (1); A lifting mechanism (2), which is arranged at the top of the base (1) and is used to adjust the height of sample 1 (5) and sample 2 (6); a first adjusting mechanism (3) disposed at the top of the base (1) and in front of the platform (22); the first adjusting mechanism (3) comprises a first telescopic rod (30) and a second telescopic rod (31); one end of the second telescopic rod (31) is provided with a first plate (32) and a second plate (33) for clamping a test probe; the first plate (32) is provided with a clamping assembly for clamping the test probe; The second adjusting mechanism (4) is arranged on both sides of the lifting mechanism (2) and is used to fix the sample 1 (5) and the sample 2 (6).

2. The adjustable thermal constant analyzer sample holder according to claim 1, characterized in that: The lifting mechanism (2) includes a base plate (20) arranged in parallel, a first cross plate (23) and a second cross plate (24) arranged between the two base plates (20), a center rod (25) arranged between the first cross plate (23) and the second cross plate (24), a first connecting rod (26) and a second connecting rod (27) respectively arranged at both ends of the first cross plate (23) and the second cross plate (24), a clearance groove (21) formed on the base plate (20), and an adjusting member (28) arranged on the first connecting rod (26) and the second connecting rod (27); the platform (22) is raised or / and lowered by movably connecting the two second connecting rods (27) on the movable ends of the two first cross plates (23) with the clearance groove (21), and fixing the first connecting rod (26) and the second connecting rod (27) through the adjusting member (28).

3. The adjustable thermal constant analyzer sample holder according to claim 1, characterized in that: The first plate (32) is also formed with a hollow groove (320) for the clamping assembly to move; the clamping assembly includes an elastic member (321) arranged inside the hollow groove (320), and a clamping member (322) is fixedly arranged at one end of the elastic member (321).

4. The adjustable thermal constant analyzer sample holder according to claim 1, characterized in that: An adjusting bolt (34) is provided between the first plate (32) and the second plate (33), and a suction cup (35) for adsorbing and fixing the test probe is provided on the second plate (33).

5. The adjustable thermal constant analyzer sample holder according to claim 3, characterized in that: A clamping groove for clamping a test probe is formed at the clamping end of the clamping member (322).

6. The adjustable thermal constant analyzer sample holder according to claim 1, characterized in that: The second adjustment mechanism (4) includes a lifting rod (40), a locking clamp (41) arranged on the lifting rod (40), a top plate (42) arranged at one end of the two lifting rods (40), and a top screw (43) threadedly connected to the middle of the top plate (42).

7. The adjustable thermal constant analyzer sample holder according to claim 1, characterized in that: The outer wall of the first telescopic rod (30) is provided with a threaded connection piece for fixing the second telescopic rod (31).

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