Testing device for vacuum adsorption material

Abstract

The utility model relates to the technical field of experimental testing, in particular to a testing device for a vacuum adsorption material, which comprises two bases, accommodating shells, a refrigerating machine, a refrigerating head, a sample tube, a cooling capacity conduction component and a dismounting component, the two bases are arranged in parallel, the split accommodating shells are arranged on the bases, the refrigerating machine is connected onto any base, and the refrigerating head is connected onto the sample tube. A refrigerating head of the refrigerating machine is connected with the containing shell, the sample tube is connected to the containing shell and makes contact with the refrigerating head of the refrigerating machine, the cooling capacity conduction assembly is connected to the refrigerating head of the refrigerating machine, and the dismounting assembly is connected to the base. According to the utility model, when the first shell and the second shell are gradually contacted with each other for splicing and sealing, the cooling capacity conduction assembly enters a use state, the cooling capacity conduction assembly connected to the refrigeration head is gradually contacted with the surface of the sample tube, and the cooling capacity is conducted through the conduction capability of the cooling capacity conduction assembly, so that the temperature in the sample tube is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental testing, and particularly relates to a testing device for vacuum adsorption materials. Background Art

[0002] In the field of cryogenic high vacuum, the research on the gas absorption performance of adsorption materials is of great significance, especially for cryogenic pumps. Different adsorption materials and changes in the characteristics of adsorption materials will directly affect the changes in the pumping speed and pumping capacity of cryogenic pumps. Therefore, selecting the optimal adsorption material can improve the performance of cryogenic pumps.

[0003] After retrieval, the Chinese patent publication number CN219871235U discloses a testing device for vacuum adsorption materials, including a first support seat, a left shell, a refrigerator, a second support seat, a right shell, and a sample chamber. The left shell is arranged on the first support seat, and the left shell is provided with a left accommodating cavity with an opening facing right. The refrigerator is arranged in the left shell, and the refrigerator is provided with a cold head, and the cold head is located in the left accommodating cavity. The right shell is arranged on the second support seat, the right shell is provided with a right accommodating cavity with an opening facing left, and the right shell is provided with a connecting channel. The sample chamber is provided with a sample cavity, the sample chamber is located in the right accommodating cavity, one end of the sample chamber is connected to the right shell and one end of the sample cavity is communicated with the connecting channel, and the sample cavity is configured to be opened and closed. The left shell and the right shell can be docked with each other left and right and separated from each other. When the left shell and the right shell are docked with each other, the left accommodating cavity and the right accommodating cavity enclose a cooling chamber. The above-mentioned testing device has the advantages of convenient sample loading and unloading and convenient maintenance.

[0004] However, in the above technical solution, the left shell and the right shell are docked with each other to form a cooling chamber, and the connection of the cold bridge with the sample chamber is used to accelerate the temperature change in the sample chamber. However, in this patent, silver or copper is selected to manufacture the cold bridge to obtain a better cold quantity transfer effect. Although copper and silver have good tensile and ductility properties, when loading and unloading samples, the left shell and the right shell need to be bent repeatedly, and multiple bends are likely to cause the cold bridge to break, greatly reducing the service life of the cold bridge. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a testing device for vacuum adsorption materials aiming at the problems existing in the background art.

[0006] Technical solution of the utility model: A testing device for vacuum adsorption materials, comprising a base, two of which are arranged in parallel, and a split accommodating shell is provided on the base; a refrigerator, which is connected to any one of the bases, and the refrigerating head of the refrigerator is connected to the accommodating shell; a sample tube, which is connected to the accommodating shell, and the sample tube is in contact with the refrigerating head of the refrigerator; a cold quantity conduction component, which is connected to the refrigerating head of the refrigerator, and in the working state of the cold quantity conduction component, the cold quantity conduction component connects the refrigerating head and the sample tube to conduct cold quantity; a disassembly component, which is connected to the base; in the working state of the disassembly component, the disassembly component drives a part of the split accommodating shell to move horizontally.

[0007] Preferably, the accommodating shell is composed of a first shell and a second shell which are symmetrically arranged, the first shell and the second shell are flange-connected, sealing covers are connected in both the first shell and the second shell, and the two sealing covers are spliced to form a sealed cavity. The refrigerating head is connected to the first shell, and the sample tube is connected to the second shell.

[0008] Preferably, sealing rings are connected to both opposite sides of the first shell and the second shell.

[0009] Preferably, the refrigerating head and the sample tube are arranged vertically and staggered.

[0010] Preferably, a sealing cover is detachably connected to one end of the sample tube close to the refrigerator.

[0011] Preferably, the cold quantity conduction component includes a connecting cylinder, which is connected to the refrigerating head of the refrigerator; two connecting rods, which are symmetrically arranged, and the connecting rods are connected to the connecting cylinder; a corrugated plate, which is connected to the connecting rods, and the corrugated plate is sleeved outside the sample tube; a limiting component, which is connected to the sample tube; in the working state of the limiting component, the limiting component pushes the corrugated plate to closely adhere to the surface of the sample tube.

[0012] Preferably, the limiting component includes a plurality of limiting rods, which are circumferentially distributed and connected to the outside of the sample tube; a plurality of limiting plates, the number of which corresponds to that of the limiting rods, and the limiting plates are all inclined; a plurality of elastic members, which are evenly distributed at equal intervals and connected to the limiting plates.

[0013] Preferably, the disassembly component includes a linear motor, which is connected to the base; a connecting seat, which is connected to the second shell, and the connecting seat is connected to the moving end of the linear motor.

[0014] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0015] In the present utility model, when the first housing and the second housing gradually come into contact with each other for splicing and sealing, the cold quantity conduction assembly enters the working state. The cold quantity conduction assembly connected to the refrigerating head gradually comes into contact with the surface of the sample tube, and conducts the cold quantity through its own conduction ability to reduce the temperature inside the sample tube. In the working state of the disassembly assembly, the disassembly assembly drives a part of the housing of the split accommodating housing to move horizontally, disassembling the complete accommodating housing to facilitate the access and maintenance of the test materials and equipment inside the accommodating housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a schematic cross-sectional view of the accommodating housing in the splicing state;

[0018] Figure 3 is a schematic view of the corrugated plate structure;

[0019] Figure 4 is a schematic view of the limiting plate structure of the present utility model.

[0020] Reference numerals: 1, base; 2, accommodating housing; 3, refrigerator; 4, refrigerating head; 5, sample tube; 6, first housing; 7, second housing; 8, sealing cover; 9, connecting cylinder; 10, connecting rod; 11, corrugated plate; 12, limiting rod; 13, limiting plate; 14, elastic member; 15, linear motor; 16, connecting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Embodiment 1

[0022] As Figures 1 - 4 shown, a testing device for a vacuum adsorption material proposed by the present utility model includes a base 1, an accommodating housing 2, a refrigerator 3, a refrigerating head 4, a sample tube 5, a cold quantity conduction assembly and a disassembly assembly. There are two bases 1 arranged in parallel; a moving seat with universal wheels sold on the market can be connected to the lower end surface of the base 1, so as to facilitate the movement of the base 1; a split accommodating housing 2 is provided on the base 1;

[0023] In an optional embodiment, the accommodating housing 2 is composed of a first housing 6 and a second housing 7 arranged symmetrically. The first housing 6 and the second housing 7 are flange-connected. Sealing covers are connected inside both the first housing 6 and the second housing 7, and the two sealing covers are spliced to form a sealed cavity; sealing gaskets made of rubber are connected to the opposite sides of the sealing covers; the refrigerating head 4 is connected to the first housing 6, and the sample tube 5 is connected to the second housing 7;

[0024] The refrigerator 3 is connected to any one of the bases 1. The cold head 4 of the refrigerator 3 is connected to the accommodating housing 2. The sample tube 5 is connected to the accommodating housing 2. The sample tube 5 is in contact with the cold head 4 of the refrigerator 3. The cold quantity conduction component is connected to the cold head 4 of the refrigerator 3. When the first housing 6 and the second housing 7 gradually come into contact with each other for splicing and sealing, the cold quantity conduction component enters the working state. The cold quantity conduction component connected to the cold head 4 gradually comes into contact with the surface of the sample tube 5, and conducts the cold quantity through its own conduction ability to reduce the temperature inside the sample tube 5. The disassembly component is connected to the base 1. In the working state of the disassembly component, the disassembly component drives a part of the housing of the split accommodating housing 2 to move horizontally, and disassembles the complete accommodating housing 2 to facilitate the access and maintenance of the test materials and equipment inside the accommodating housing 2.

[0025] In an alternative embodiment, sealing rings are connected to the opposite sides of the first housing 6 and the second housing 7. The sealing rings are used to prevent air leakage at the flange connection of the first housing 6 and the second housing 7 from affecting the refrigeration effect of the refrigerator 3.

[0026] In an alternative embodiment, the cold head 4 and the sample tube 5 are arranged in a vertical and staggered manner. The staggered arrangement ensures that the cold head 4 and the sample tube 5 will not interfere with or collide with each other when the first housing 6 and the second housing 7 are spliced together.

[0027] In an alternative embodiment, a sealing cap 8 is detachably connected to one end of the sample tube 5 close to the refrigerator 3. The sealing cap 8 is threadedly connected to the sample tube 5.

[0028] Embodiment 2

[0029] As Figures 2 - 4 shown, a test device for a vacuum adsorption material proposed by the present utility model. Compared with Embodiment 1, the detailed structure of the cold quantity conduction component is described in this embodiment. The cold quantity conduction component includes a connecting cylinder 9, connecting rods 10, a corrugated plate 11 and a limiting component. The connecting cylinder 9 is connected to the cold head 4 of the refrigerator 3. There are two symmetrically arranged connecting rods 10. The connecting rods 10 are connected to the connecting cylinder 9. The corrugated plate 11 is connected to the connecting rods 10. The corrugated plate 11 is sleeved outside the sample tube 5. A groove larger than the outer diameter of the sample tube 5 is formed in the inner wall of the corrugated plate 11 to facilitate contact with the sample tube 5. The limiting component is connected to the sample tube 5. In the working state of the limiting component, the limiting component pushes the corrugated plate 11 against the surface of the sample tube 5.

[0030] The limiting component includes a limiting rod 12, a limiting plate 13 and an elastic member 14. There are multiple limiting rods 12 distributed circumferentially with the central axis of the sample tube 5 as the center. The limiting rods 12 are connected to the outside of the sample tube 5. The shape of the limiting rod 12 is in the shape of a '7' or an inverted 'L'. The number of the limiting plates 13 corresponds to that of the limiting rods 12, and all the limiting plates 13 are inclined. The distance between the limiting plates 13 gradually decreases from the direction of the refrigerating head 4 to the sample tube 5. There are multiple elastic members 14 evenly distributed at equal intervals, and the elastic members 14 are connected to the limiting plates 13. The elastic member 14 is selected but not limited to a rubber block, and the rubber block increases the contact area with the corrugated plate 11, and at the same time elastically pushes the corrugated plate 11 to closely adhere to the surface of the sample tube 5.

[0031] Embodiment 3

[0032] As Figure 1 shown, a testing device for a vacuum adsorption material proposed by the present utility model. Compared with Embodiment 2, the detailed structure of the disassembly component is described in this embodiment. The disassembly component includes a linear motor 15 and a connecting seat 16. The linear motor 15 is connected to the upper end surface of the base 1, and the connecting seat 16 is connected to the second housing 7. The connecting seat 16 is connected to the moving end of the linear motor 15.

[0033] In summary, when the present utility model is used, by a person starting the linear motor 15, after the linear motor 15 is started, its moving end drives the connecting seat 16 to move, thereby driving the second housing 7 away from the first housing 6, creating a gap between the two to facilitate exposing the internal structure. Rotating the sealing cover 8 will disconnect it from the sample tube 5. After placing the vacuum adsorption material to be tested into the sample tube 5, the sealing cover 8 is connected to the sample tube 5 again. Then, the linear motor 15 drives the second housing 7 to closely adhere to the first housing 6 to form a complete accommodating housing 2. At the same time, the sealing covers inside the accommodating housing 2 also fit together, and together with the sealing rings on the second housing 7 and the first housing 6, a sealed space is formed. At the same time, the connecting cylinder 9 on the refrigerating head 4 approaches the sample tube 5, and the connecting rod 10 on the connecting cylinder 9 drives the corrugated plate 11 to contact the sample tube 5. As the second housing 7 and the first housing 6 gradually approach, the corrugated plate 11 contacts the limiting plate 13, and the elastic member 14 pushes the corrugated plate 11 to closely adhere to the surface of the sample tube 5 to accelerate the conduction of cold and the drop of temperature. The part of the sample tube 5 extending out of the accommodating housing 2 is used to evacuate the sample tube 5 and inject test gas. After starting the refrigerator 3, the refrigerating head 4 of the refrigerator 3 reduces the temperature and conducts the reduced temperature through the corrugated plate 11. After the test is completed, the second housing 7 and the first housing 6 are separated by the linear motor 15 to facilitate taking and placing the sample.

[0034] The above has described in detail the embodiments of the present utility model in conjunction with the drawings. However, the present utility model is not limited thereto. Various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the art to which it pertains.

Claims

1. A vacuum adsorption material testing device, characterized in that: include A base (1), two of which are arranged in parallel, and a split accommodating shell (2) is provided on the base (1); A refrigerator (3) connected to any one of the bases (1), wherein a refrigeration head (4) of the refrigerator (3) is connected to the accommodating shell (2); A sample tube (5) connected to the containing shell (2), the sample tube (5) being in contact with a refrigeration head (4) of a refrigeration machine (3); A cold conduction component connected to a cooling head (4) of a refrigerator (3); when the cold conduction component is in use, the cold conduction component connects the cooling head (4) to a sample tube (5) to conduct cold; The disassembly assembly is connected to the base (1); when the disassembly assembly is in use, the disassembly assembly drives part of the split accommodating shell (2) to move in the horizontal direction.

2. A vacuum adsorption material testing device according to claim 1, characterized in that: The containing shell (2) is composed of a first shell (6) and a second shell (7) which are symmetrically arranged. The first shell (6) and the second shell (7) are connected by flanges. The first shell (6) and the second shell (7) are both connected with sealing covers. The two sealing covers are spliced ​​to form a sealed cavity. The refrigeration head (4) is connected to the first shell (6), and the sample tube (5) is connected to the second shell (7).

3. A vacuum adsorption material testing device according to claim 2, characterized in that: The first shell (6) and the second shell (7) are both connected to a sealing ring on the opposite side.

4. A vacuum adsorption material testing device according to claim 1, characterized in that: The refrigeration heads (4) and the sample tubes (5) are arranged alternately up and down.

5. A vacuum adsorption material testing device according to claim 1, characterized in that: One end of the sample tube (5) close to the refrigerator (3) is detachably connected with a sealing cover (8).

6. A vacuum adsorption material testing device according to claim 1, characterized in that: The cooling components include A connecting tube (9) connected to a refrigeration head (4) of a refrigeration machine (3); Two connecting rods (10) are symmetrically arranged, and the connecting rods (10) are connected to the connecting tube (9); A corrugated plate (11) connected to the connecting rod (10), the corrugated plate (11) being sleeved on the outside of the sample tube (5); The limiting assembly is connected to the sample tube (5); when the limiting assembly is in use, the limiting assembly pushes the wave plate (11) to be closely attached to the surface of the sample tube (5).

7. A vacuum adsorption material testing device according to claim 6, characterized in that: The limiter components include A plurality of limiting rods (12) are distributed around the circumference, and the limiting rods (12) are connected to the outside of the sample tube (5); The number of the limiting plates (13) corresponds to the limiting rods (12), and the limiting plates (13) are all inclined. A plurality of elastic members (14) are evenly distributed at equal intervals, and the elastic members (14) are connected to the limiting plate (13).

8. A vacuum adsorption material testing device according to claim 2, characterized in that: Disassembly kit includes A linear motor (15) connected to the base (1); A connecting seat (16) is connected to the second housing (7), and the connecting seat (16) is connected to the moving end of the linear motor (15).

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