A sample loading tank

Abstract

This utility model provides a sample loading tank, belonging to the field of material heat treatment equipment; it includes a tank body and a tank cover. The open end of the tank body has an outer frosted surface, and the inner side of the tank cover has a matching inner frosted surface. The two are fastened together to achieve initial sealing and guidance. A first limiting component is also provided, including a first limiting member on the tank body and a second limiting member on the tank cover. The two cooperate to limit the axial displacement of the tank cover after fastening, providing reliable mechanical locking and providing a stable and reliable axial constraint force for the tank cover, effectively preventing sealing failure caused by internal pressure increase or thermal deformation during heating; and the snap-fit ​​connection is faster to operate than the threaded connection and avoids the risk of high-temperature seizing.

Description

Technical Field

[0001] This utility model belongs to the field of material heat treatment, and in particular relates to a sample loading tank. Background Technology

[0002] In high-temperature experiments in materials science (such as alloy melting, powder sintering, crystal growth, and phase transformation studies), samples often need to be placed in heat-resistant containers for controlled heating. Traditional high-temperature containers, such as alumina crucibles, quartz crucibles, or corundum boats, can withstand high temperatures, but their structural design often makes effective sealing difficult. This leads to easy gas exchange between the furnace atmosphere and the sample's microenvironment during heating, causing oxidation, moisture absorption, or loss of volatile components in the sample, severely affecting the accuracy and repeatability of experimental results, especially in atmosphere-sensitive experiments.

[0003] To address the sealing issue, existing technologies have developed sealed tanks with threaded sealing caps made of metallic materials (such as stainless steel and high-temperature alloys). These devices achieve a seal through the pressure generated by tightening the threads, which can isolate the external environment to some extent and meet some atmosphere protection requirements. However, in high-temperature environments, the metal threads may "seize" due to differences in thermal expansion coefficients, making them difficult to open. Furthermore, prolonged use can lead to wear and leakage of the sealing surface. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a sample loading tank to solve the problem that the sample loading tank with threaded seal is difficult to open under high temperature conditions in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a sample loading tank, comprising: a tank body, wherein an outer frosted surface is provided on the outer side wall of the open end of the tank body; a tank cover, wherein an inner frosted surface adapted to the outer frosted surface is provided on the inner side wall of the tank cover; and a first limiting component, comprising a first limiting member disposed on the tank body and a second limiting member disposed on the tank cover, wherein when the tank cover and the tank body are fastened together by the outer frosted surface and the inner frosted surface, the first limiting member and the second limiting member cooperate with each other to limit the displacement of the tank cover along the axial direction of the tank body.

[0006] Optionally, the first limiting member is a locking block disposed on the outer wall of the tank; the second limiting member is an L-shaped limiting block with a locking slot disposed on the tank cover, the locking slot being used to accommodate and lock the locking block when in the locked state.

[0007] Optionally, there are multiple first limiting members, which are evenly and spaced apart along the circumference of the tank; the number of second limiting members is equal to the number of first limiting members and they are arranged in a one-to-one correspondence.

[0008] Optionally, the number of the first limiting components is 2, 3 or 4.

[0009] Optionally, an anti-slip structure is provided on the working mating surface of the first limiting member and / or the second limiting member.

[0010] Optionally, the anti-slip structure may be serrated, knurled, or rough-textured.

[0011] Optionally, a ceramic heat insulation sheet is removably provided on the inner top of the can lid.

[0012] Optionally, the inner top of the can lid is provided with a receiving groove, and the ceramic heat insulation sheet is placed in the receiving groove; a second limiting component is provided between the can lid and the ceramic heat insulation sheet to prevent the ceramic heat insulation sheet from falling out.

[0013] Optionally, the second limiting component includes a third limiting member disposed on the inner wall of the receiving groove and a fourth limiting member disposed on the periphery or side of the ceramic heat insulation sheet; the third limiting member and the fourth limiting member cooperate with each other to lock the ceramic heat insulation sheet in the receiving groove.

[0014] Optionally, the third limiting member is a slot extending circumferentially along the inner wall of the receiving groove, and the fourth limiting member is a hook provided on the ceramic heat insulation sheet that is adapted to the slot.

[0015] As described above, the sample loading tank of this utility model has at least the following beneficial effects: 1. Reliable sealing and convenient operation: The outer and inner frosted surfaces achieve excellent initial sealing and guiding positioning. Combined with the mechanical locking of the first limiting assembly (first and second limiting parts), a stable and reliable axial constraint force is provided for the can lid, effectively preventing sealing failure due to increased internal pressure or thermal deformation during heating. Compared to threaded connections, the snap-fit ​​connection is quicker to operate and avoids the risk of high-temperature seizing.

[0016] 2. Effective pollution prevention and easy maintenance: A ceramic heat insulation sheet is detachably installed at the top inside the can lid. This ceramic sheet physically isolates the high-temperature sample from the metal can lid, completely eliminating the risk of adhesion, alloying, or catalytic reaction between the two at high temperatures. The ceramic sheet is fixed by a second limiting component (such as a slot and hook), making it easy to install, remove, replace, or clean, greatly reducing maintenance costs and the possibility of cross-contamination.

[0017] 3. Robust structure and strong adaptability: Multiple first limiting components (e.g., 2-4) are evenly distributed along the circumference of the tank body, ensuring uniform force on the tank cover and stable sealing. Anti-slip structures (e.g., toothed) are provided on the mating surfaces of the first limiting components, further enhancing the reliability of the locking and preventing accidental loosening. The entire device is compact, robust, and durable, suitable for repeated high and low temperature cycles. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic representation of the overall structure of a sample loading tank according to this utility model.

[0019] Figure 2 The diagram shown is an exploded structural diagram of a sample loading tank according to this utility model.

[0020] Figure 3 The diagram shown is a structural schematic of the lid and ceramic heat insulation sheet of a sample loading tank according to this utility model.

[0021] Figure 4 The diagram shown is a structural schematic of the lid of a sample loading tank according to this utility model.

[0022] Figure 5 The diagram shown is a structural schematic of a ceramic heat insulation sheet for a sample loading tank according to this utility model.

[0023] Component designation explanation: 1. Tank body; 11. Outer frosted surface; 2. Tank lid; 21. Inner frosted surface; 3. First limiting component; 31. First limiting element; 32. Second limiting element; 33. Anti-slip structure; 4. Ceramic heat insulation sheet; 5. Second limiting component; 51. Third limiting element; 52. Fourth limiting element. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0027] Please see Figure 1-5This utility model provides a sample loading tank, including a tank body 1, a tank cover 2 and a first limiting component 3.

[0028] The can body 1 is cylindrical and made of high-temperature resistant stainless steel. The outer wall of its open end is finely ground to form an outer frosted surface 11. On the outer wall of the can body 1 below the outer frosted surface 11, multiple first limiting members 31 are welded or integrally machined along the circumference; in this embodiment, these are rectangular metal blocks. Each block is provided with an anti-slip structure 33, which can be knurled or textured. In this embodiment, the anti-slip structure 33 is a parallel toothed pattern. The number of first limiting members can be two, three, four, etc., and this embodiment does not impose any limitation on this.

[0029] The can lid 2 is also made of high-temperature resistant stainless steel, and its shape is adapted to the opening of the can body 1. The inner side wall of the can lid 2 is machined with an inner frosted surface 21 that precisely matches the outer frosted surface 11 of the can body 1. On the outer side wall of the can lid 2, a second limiting member 32 is provided corresponding to the position of each first limiting member 31. It is an L-shaped limiting block. The short side end of the L-shaped limiting block forms a bayonet.

[0030] The bayonet is used to accommodate and lock the first limiting member 31 when the first limiting member 31 and the second limiting member 32 are engaged. The second limiting member is also provided with an anti-slip structure 33, which is adapted to the anti-slip structure 33 provided on the first limiting member 31 to achieve the locking.

[0031] A ceramic heat insulation sheet 4 is detachably mounted on the inner top of the can lid 2. The diameter of the ceramic heat insulation sheet 4 is greater than or equal to the inner diameter of the can body 1, and it is used to abut against the opening of the can body 1. The inner top of the can lid 2 is recessed downward to form a receiving groove for accommodating the ceramic heat insulation sheet 4. A second limiting component 5 is provided between the can lid 2 and the ceramic heat insulation sheet 4 to prevent the ceramic heat insulation sheet 4 from falling out of the receiving groove. Specifically, the second limiting component 5 includes a third limiting member 51 disposed on the inner side wall of the receiving groove and a fourth limiting member 52 disposed correspondingly around the periphery of the ceramic heat insulation sheet 4. The third limiting member 51 and the fourth limiting member 52 cooperate with each other to lock the ceramic heat insulation sheet 4 in the receiving groove.

[0032] There are multiple third limiting members 51, each of which is a slot extending circumferentially along the inner wall of the receiving groove; there are also multiple fourth limiting members 52, which are arranged one-to-one with the third limiting members 51, and the fourth limiting members 52 are hooks that are adapted to the slots and are arranged on the ceramic heat insulation sheet 4.

[0033] Assembly and usage process: First, place the ceramic heat insulation sheet 4 into the receiving groove of the can lid 2, apply pressure and rotate it so that the fourth limiting member 52 on the ceramic heat insulation sheet 4 slides into and is locked in the third limiting member 51 of the receiving groove, thereby detachably fixing the ceramic heat insulation sheet 4 inside the can lid 2.

[0034] Then, place the sample to be treated into the container 1. Hold the container lid 2 and align its inner frosted surface 21 with the outer frosted surface 11 of the container 1, pressing it down axially. Then, rotate the container lid 2 circumferentially relative to the container 1. At this time, when the second limiting member 32 on the side wall of the container lid 2 contacts the first limiting member 31 on the container 1, the second limiting member 32 will undergo elastic deformation until the anti-slip structure 33 on the second limiting member 32 abuts against the anti-slip structure 33 on the first limiting member 31 and locks tightly to prevent loosening. At this point, the container 1 and the container lid 2 are reliably sealed, and the axial movement of the container lid 2 relative to the container 1 is restricted by the action of the first limiting member 31 and the second limiting member 32.

[0035] Finally, the entire loading tank is placed in the heating equipment for testing. After the test, the tank lid is rotated to disconnect the first limiting member 31 and the second limiting member 32, and then the tank lid is removed. The sample will not stick to the metal tank lid. If the ceramic heat insulation sheet 4 needs to be replaced or cleaned, it can be removed from the tank lid 2 simply by rotating it in the opposite direction.

[0036] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A sample loading tank, characterized in that, include: The tank body has an outer frosted surface on the outer wall of the open end of the tank body; The can lid has an inner frosted surface on its inner sidewall that is adapted to the outer frosted surface. The first limiting component includes a first limiting member disposed on the tank body and a second limiting member disposed on the tank lid. When the tank lid and the tank body are fastened together by the outer frosted surface and the inner frosted surface, the first limiting member and the second limiting member cooperate with each other to limit the displacement of the tank lid along the axial direction of the tank body.

2. The sample loading tank according to claim 1, characterized in that: The first limiting component is a locking block disposed on the outer wall of the tank; The second limiting member is an L-shaped limiting block with a bayonet on the can lid, the bayonet being used to accommodate and lock the block in the latched state.

3. The sample loading tank according to claim 2, characterized in that: There are multiple first limiting members, which are evenly and spaced apart along the circumference of the tank; the number of second limiting members is equal to the number of first limiting members and they are arranged in a one-to-one correspondence.

4. The sample loading tank according to claim 3, characterized in that: The number of the first limiting components is 2, 3 or 4.

5. The sample loading tank according to claim 1, characterized in that: The working mating surfaces of the first limiting member and / or the second limiting member are provided with anti-slip structures.

6. The sample loading tank according to claim 5, characterized in that: The anti-slip structure is a toothed, knurled, or rough textured surface.

7. The sample loading tank according to any one of claims 1-6, characterized in that: The inner top of the can lid is detachably fitted with a ceramic heat insulation sheet.

8. The sample loading tank according to claim 7, characterized in that: The inner top of the can lid is provided with a receiving groove, and the ceramic heat insulation sheet is placed in the receiving groove; a second limiting component is provided between the can lid and the ceramic heat insulation sheet to prevent the ceramic heat insulation sheet from falling out.

9. The sample loading tank according to claim 8, characterized in that: The second limiting component includes a third limiting member disposed on the inner wall of the receiving groove and a fourth limiting member disposed correspondingly on the periphery of the ceramic heat insulation sheet; the third limiting member and the fourth limiting member cooperate with each other to lock the ceramic heat insulation sheet in the receiving groove.

10. The sample loading tank according to claim 9, characterized in that: The third limiting member is a slot extending circumferentially along the inner wall of the receiving groove, and the fourth limiting member is a hook provided on the ceramic heat insulation sheet that is adapted to the slot.

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