Asymmetric hot plate instrument

Abstract

The utility model discloses an asymmetric hot plate instrument, which belongs to the field of hot plate instruments and comprises a hot plate instrument main body, a heating plate fixedly mounted at the top of the hot plate instrument main body and a heat sensing plate longitudinally moving on the hot plate instrument main body and corresponding to the position above the heating plate. A supporting plate in sliding connection with the heat sensing plate is fixedly connected to the hot plate instrument body, a handle is hinged to the center of the face, away from the heating plate, of the heat sensing plate, and a positioning mechanism used for clamping a biological material sample is arranged at the position, corresponding to the position between the heating plate and the heat sensing plate, of the hot plate instrument body. According to the asymmetric hot plate instrument, a biological material is clamped and positioned through the positioning mechanism, and particularly, the irregular-shaped biological material can be more stably clamped through the bell-mouth chuck, so that the biological material in different postures can be conveniently measured, the collection of comparison data and the averaging of the comparison data are facilitated, and the measurement precision is improved.

Description

Technical Field

[0001] The utility model relates to the field of hot plate instruments, in particular to an asymmetric hot plate instrument. Background Art

[0002] A hot plate meter is an instrument used to measure the thermal conductivity and thermal resistance of a material. It usually consists of a heating plate and a cooling plate, and determines the thermal conductivity of a material by measuring the ability of the material to conduct heat between them at a given temperature. Hot plate meters are widely used in materials science, construction engineering, thermal engineering and other fields to help people understand the thermal properties and performance of materials.

[0003] In the biomedical field, understanding the thermal conductivity of biomaterials is of great significance for designing medical devices and studying the heat transfer process in organisms. Researchers generally use asymmetric hot plate instruments to test the thermal conductivity of biomaterials and collect data to serve science and technology.

[0004] Traditional hot plate instruments generally use regular three-dimensional material samples for testing when measuring materials. Therefore, you only need to place the sample between the heating plate and the thermal plate to collect the heat conduction distance and heat conduction time, so as to summarize the thermal conductivity coefficient of the material. However, most biological materials have irregular shapes and different densities. When measuring, the data deviation will be large due to the placement posture.

[0005] Therefore, an asymmetric hot plate apparatus is provided to facilitate the positioning of biological materials to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] The utility model provides an asymmetric hot plate instrument, aiming to solve the problem that the existing hot plate instrument mentioned in the background technology is inconvenient to measure biological materials.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model provides the following technical solutions: an asymmetric hot plate apparatus, comprising a hot plate apparatus body, a heating plate fixedly mounted on the top of the hot plate apparatus body, and a heat-sensitive plate longitudinally movable on the hot plate apparatus body at a position corresponding to the top of the heating plate.

[0010] In order to prevent the thermal plate and the heating plate from changing their postures when clamping the biological material, a support plate slidably connected to the thermal plate is fixedly connected to the main body of the thermal plate instrument, a handle is hinged at the central position of the thermal plate away from the heating plate, and a positioning mechanism for clamping the biological material sample is provided on the main body of the hot plate instrument at a position corresponding to the position between the heating plate and the thermal plate.

[0011] In order to facilitate the adjustment of the posture of the biological material, the positioning mechanism includes a support frame fixedly connected to the hot plate instrument body and symmetrically arranged at positions on both sides of the heating plate, a slider that moves longitudinally inside the support frame and is slidably connected to the support frame, threaded rods that are respectively screwed on the two sliders and approach or move away from each other, a chuck that is rotatably connected to the end of the threaded rod that is close to each other, and a locking nut ring that is sleeved on the outside of the threaded rod and screwed to the end that is away from the chuck.

[0012] Preferably, in order to facilitate operation by placing the heat-sensitive plate idle, thereby freeing hands to operate the positioning mechanism, a hanging rod is fixedly connected to the support plate at a position above the handle.

[0013] Preferably, in order to prevent the threaded rod from loosening when clamping the biological material, the ends of the threaded rods that are away from each other are fixedly connected with torsion blocks, and a movable handle passes through the torsion block in a direction perpendicular to the axis of the threaded rod, and the movable handle is slidably connected to the torsion block.

[0014] Preferably, in order to ensure the smooth up and down movement of the thermal plate and the stability of its covering on the biological material, a symmetrically arranged sliding rod is fixedly connected to the side of the thermal plate instrument body away from the support plate, and the sliding rod is parallel to the support plate and slidably connected to the thermal plate.

[0015] Preferably, in order to prevent the thermal plate from slipping off, the top ends of the support plate and the slide rod are capped.

[0016] Preferably, in order to prevent the movable handle from slipping and increase the counterweights at both ends so that the movable handle always maintains a longer lower half under the action of gravity, which is conducive to keeping the threaded rod in a tightened state, both ends of the movable handle have ball heads with a diameter larger than the handle shaft.

[0017] Preferably, in order to better clamp the biomaterial and avoid affecting the heat conduction of the material itself during the heat conduction process, the clamp is in a bell-mouth shape, and the inner side of the bell-mouth of the clamp has an elastic and heat-insulating rubber layer.

[0018] (III) Beneficial effects

[0019] The asymmetric hot plate instrument clamps and positions the biomaterial through a positioning mechanism, especially the bell-mouthed clamp can more stably clamp irregularly shaped biomaterials, facilitate the measurement of biomaterials in different postures, and is conducive to collecting comparative data to obtain an average value, thereby improving measurement accuracy.

[0020] The asymmetric hot plate instrument has a bell-shaped chuck and an inner rubber layer that is elastic and heat-insulating. It can provide multi-point support and play a buffering and protective role to avoid damaging the material while not affecting the heat conduction process, which is conducive to ensuring data accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an asymmetric hot plate apparatus;

[0022] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0023] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at point B.

[0024] In the figure:

[0025] 1. Hot plate instrument body; 11. Heating plate; 12. Support plate; 121. Hanging rod; 13. Sliding rod; 2. Thermal plate; 21. Handle; 3. Positioning mechanism; 31. Support frame; 311. Sliding block; 32. Threaded rod; 321. Twist block; 322. Movable handle; 323. Chuck; 324. Lock nut ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 3 The utility model provides a technical solution: an asymmetric hot plate instrument, comprising a hot plate instrument body 1, a heating plate 11 fixedly installed on the top of the hot plate instrument body 1, and a heat-sensitive plate 2 longitudinally moving on the hot plate instrument body 1 corresponding to the position above the heating plate 11, a support plate 12 fixedly connected to the hot plate instrument body 1 and slidably connected to the heat-sensitive plate 2, a handle 21 is hinged at the central position of the side of the heat-sensitive plate 2 away from the heating plate 11, a hanging rod 121 is fixedly connected to the support plate 12 at a position above the handle 21, and a positioning mechanism 3 for clamping a biological material sample is arranged at a position between the heating plate 11 and the heat-sensitive plate 2 on the hot plate instrument body 1.

[0028] The positioning mechanism 3 includes a support frame 31 fixedly connected to the hot plate instrument body 1 and symmetrically arranged at positions on both sides of the corresponding heating plate 11, a slider 311 that moves longitudinally on the inner side of the support frame 31 and is slidably connected to the support frame 31, a threaded rod 32 that is respectively screwed on the two sliders 311 and approaches or moves away from each other, a chuck 323 that is rotatably connected to the end of the threaded rod 32 that is close to each other, and a lock nut ring 324 that is sleeved on the outside of the threaded rod 32 and screwed to the end of the chuck 323 that is away from each other.

[0029] When in use, the biomaterial is placed on the heating plate 11, and then the threaded rods 32 on both sides are tightened so that the clamps 323 on the threaded rods are close to each other until they touch the biomaterial. The posture of the biomaterial is adjusted with one hand, and then the threaded rod 32 is moved up and down with the other hand, so that the threaded rod 32 is lifted and lowered on the support frame 31 under the action of the slider 311, and the threaded rod 32 is kept parallel to the biomaterial, and then the threaded rod 32 is rotated to make its clamp 323 press against the biomaterial, and then the threaded rod 32 on the other side is operated in the same way until the biomaterial is clamped between the two clamps 323, and finally the lock nut 324 is tightened. The chuck 323 is stopped from rotating on the chuck 323, thereby maintaining the posture of the biomaterial, and naturally falls on the heating plate 11 under the action of gravity, and then the handle 21 is removed from the hanging rod 121, and the thermal plate 2 is gradually lowered onto the biomaterial, and the handle 21 is released after it contacts the biomaterial, and then the heating plate 11 is heated by the hot plate instrument body 1, and the thermal plate 2 transmits the information collected during the heat conduction process to the hot plate instrument body 1 for processing, and finally converted into data for viewing. Through the above operations, different postures of the biomaterial are measured, and finally the average value is taken to obtain a more accurate conduction coefficient.

[0030] Furthermore, the ends of the threaded rods 32 that are away from each other are fixedly connected with torsion blocks 321, and a movable handle 322 passes through the torsion block 321 in a direction perpendicular to the axis of the threaded rod 32, and the movable handle 322 is slidably connected to the torsion block 321, and both ends of the movable handle 322 have a ball head with a diameter larger than the handle shaft; when rotating the threaded rod 32, it is more labor-saving to hold the longer end of the movable handle 322 and then apply force to twist the threaded rod 32 through the movable handle 322, and after the threaded rod 32 is locked, the movable handle 322 is released, so that it slides downward from the torsion block 321 under gravity due to the counterweight of the ball head, keeping the lower half longer, and using gravity to generate torque on the threaded rod 32 again to keep the threaded rod 32 in a tightened state, so that the clamped biomaterial is not easy to loosen.

[0031] Furthermore, a symmetrically arranged sliding rod 13 is fixedly connected to one side of the hot plate instrument body 1 away from the support plate 12. The sliding rod 13 is parallel to the support plate 12 and is slidably connected to the heat-sensitive plate 2. When the heat-sensitive plate 2 slides up and down, the two sliding rods 13 cooperate with the support plate 12 to form a three-point support and limit around the heat-sensitive plate 2, so that it is more stable when rising and falling, and it is not easy to deviate when pressing on the biological material.

[0032] It should be noted that the top ends of the support plate 12 and the slide rod 13 are capped; when the thermal plate 2 slides upward, it cannot slip off due to the capping of the support plate 12 and the slide rod 13, thus ensuring safety.

[0033] More specifically, the chuck 323 is in a bell-mouth shape, and the inner side of the bell-mouth of the chuck 323 has an elastic and heat-insulating rubber layer; the bell-mouth of the chuck 323 can provide multi-point support for the clamped material to maintain the stability of the clamping, and at the same time, the inner rubber layer can deform when subjected to external stress as a buffer and protection, without damaging the material, but can completely return to its original state after the external stress is released, and there will be no heat loss or absorption in this process, thereby eliminating the impact on the entire heat conduction process, which is beneficial to the accuracy of the measurement data.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An asymmetric hot plate apparatus, comprising a hot plate apparatus body (1), a heating plate (11) fixedly mounted on the top of the hot plate apparatus body (1), and a heat-sensitive plate (2) longitudinally movable on the hot plate apparatus body (1) at a position above the heating plate (11), characterized in that: A support plate (12) is fixedly connected to the hot plate instrument body (1) and is slidably connected to the heat-sensitive plate (2); a handle (21) is hingedly connected to the center of a side of the heat-sensitive plate (2) away from the heating plate (11); and a positioning mechanism (3) for clamping a biological material sample is provided on the hot plate instrument body (1) at a position corresponding to between the heating plate (11) and the heat-sensitive plate (2); The positioning mechanism (3) comprises a support frame (31) fixedly connected to the hot plate instrument body (1) and symmetrically arranged at positions on both sides of the heating plate (11), a slider (311) longitudinally movable inside the support frame (31) and slidably connected to the support frame (31), a threaded rod (32) respectively screwed on the two sliders (311) and approaching or moving away from each other, a clamp (323) rotatably connected to one end of the threaded rod (32) approaching each other, and a lock nut (324) sleeved on the outside of the threaded rod (32) and screwed to one end of the clamp (323) away from each other.

2. An asymmetric hot plate apparatus according to claim 1, characterized in that: A hanging rod (121) is fixedly connected to the support plate (12) at a position above the handle (21).

3. An asymmetric hot plate apparatus according to claim 2, characterized in that: The ends of the threaded rods (32) that are away from each other are fixedly connected to a torsion block (321), a movable handle (322) passes through the torsion block (321) in a direction perpendicular to the axis of the threaded rod (32), and the movable handle (322) is slidably connected to the torsion block (321).

4. An asymmetric hot plate apparatus according to claim 3, characterized in that: A symmetrically arranged sliding rod (13) is fixedly connected to a side of the hot plate instrument body (1) away from the support plate (12); the sliding rod (13) is parallel to the support plate (12) and is slidably connected to the heat-sensitive plate (2).

5. An asymmetric hot plate apparatus according to claim 4, characterized in that: The top ends of the support plate (12) and the slide rod (13) are capped.

6. An asymmetric hot plate apparatus according to claim 5, characterized in that: Both ends of the movable handle (322) are provided with ball heads with a diameter larger than the handle shaft.

7. An asymmetric hot plate apparatus according to claim 6, characterized in that: The clamp (323) is in a bell-mouth shape, and the inner side of the bell-mouth of the clamp (323) is provided with a rubber layer.

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