Resistivity testing device used under high temperature and high pressure

Abstract

The utility model discloses a resistivity testing device used under high temperature and high pressure, and belongs to the technical field of resistivity testing devices. Comprising a test box which is provided with a sealing cover. A supercharger communicated with the test box is arranged outside the test box, and a heating wire is arranged on the inner wall of the test box; the fixing assembly is pressed on the test material and is fixedly connected to the lower part of the sealing cover; the sliding rod is located below the sealing cover, a contact electrode is arranged below the contact electrode block, the contact electrode block is located above the test material, and the contact electrode block is connected with the sliding rod through an elastic telescopic assembly; a sliding groove is formed in the sealing cover, and a sliding adjusting assembly capable of driving the sliding rod to slide is arranged in the sliding groove. And a pushing assembly capable of pushing the contact electrode block to lift is arranged below the sealing cover. According to the invention, the operation steps of fixing the test material can be reduced, and the contact test point position can be conveniently adjusted without opening the test box.

Description

Technical Field

[0001] This invention provides a resistivity testing device for high temperature and high pressure conditions, belonging to the technical field of resistivity testing devices. Background Technology

[0002] The resistivity of a material is one of its important physical properties, reflecting the extent to which the material impedes the flow of electric current. In many practical applications, materials need to operate under extreme conditions of high temperature and high pressure, and the resistivity variation of these materials under such conditions is of significant research value.

[0003] In simulating high-temperature and high-pressure environments, a booster compressor provides appropriate pressure, and a heating wire provides appropriate temperature. A sealed device is typically required as the testing apparatus to ensure the stability of pressure and temperature within the apparatus. However, when placing the test material inside the apparatus, it must first be secured before the apparatus is sealed; similarly, opening the apparatus requires first removing the seal and then releasing the material, making the process cumbersome. Furthermore, when testing the resistivity of the material, electrodes often need to contact different points on the material to increase accuracy. However, with a relatively sealed testing apparatus, it is inconvenient to adjust the contact points without opening the apparatus. To address these issues, a resistivity testing apparatus for high-temperature and high-pressure conditions is needed. Utility Model Content

[0004] The technical problem this invention aims to solve is that fixing and unfixing test materials is cumbersome, and it is inconvenient to adjust the test contact points during operation.

[0005] To address the aforementioned problems, the proposed technical solution is as follows: a resistivity testing device under high temperature and high pressure, comprising a test chamber with a sealing cover; a placement platform fixedly disposed inside the test chamber, on which the test material is placed; a booster compressor connected to the test chamber is disposed outside the test chamber, and heating wires are disposed on the inner wall of the test chamber; further comprising:

[0006] A fixing component is pressed onto the test material and is fixedly connected to the bottom of the sealing cap;

[0007] The device includes a sliding rod and a contact electrode block. The sliding rod is located below the sealing cover, and a contact electrode is located below the contact electrode block. The contact electrode block is located above the test material and is connected to the sliding rod via an elastic telescopic component. A sliding groove is provided inside the sealing cover, and a sliding adjustment component capable of driving the sliding rod to slide is provided in the groove. A pushing component capable of pushing the contact electrode block to rise and fall is provided below the sealing cover.

[0008] As an improvement, the fixing assembly includes a connecting rod and a fixing bracket; the connecting rod is fixedly connected to the bottom of the sealing cover, the fixing bracket is fixedly connected to the connecting rod, and the fixing bracket presses on the test material.

[0009] As an improvement, the elastic telescopic component includes a telescopic rod, a compression plate, and a spring. The sliding rod has a groove, and the compression plate is slidably disposed in the groove. The upper end of the telescopic rod is fixedly connected to the compression plate, and the lower end of the telescopic rod is fixedly connected to the contact electrode block. The spring is located in the groove and is sleeved on the telescopic rod.

[0010] As an improvement, the pushing assembly includes an electric telescopic rod and a push plate; the electric telescopic rod is fixedly disposed below the sealing cover, and the push plate is fixedly connected to the working end of the electric telescopic rod; a guide groove is provided on the push plate, the contact electrode block is located below the push plate, and the telescopic rod passes through the guide groove and is fixedly connected to the contact electrode block.

[0011] As an improvement, the sliding adjustment assembly includes a motor, a bidirectional lead screw, and a slider; the motor is disposed on the outer wall of the sealing cover, the bidirectional lead screw is rotatably disposed in the slide groove, and the bidirectional lead screw is fixedly connected to the output shaft of the motor; two sliders are provided, and the two sliders are threadedly connected to the corresponding positions of the bidirectional lead screw; a limiting groove communicating with the slide groove is opened at the bottom of the sealing cover, and the slider passes through the limiting groove and is fixedly connected to the sliding rod.

[0012] As an improvement, the test box is provided with an observation window.

[0013] The beneficial effects of this utility model are:

[0014] 1. The fixing component is pressed on the test material and is fixedly connected to the bottom of the sealing cover. By connecting the fixing component to the sealing cover, the test material can be fixed simultaneously when the sealing cover is installed to seal the test device. Similarly, the fixing of the test material can be released at the same time when the sealing cover is opened, which is convenient to operate.

[0015] 2. The slide groove is equipped with a sliding adjustment component that can drive the sliding rod to slide. By setting the sliding adjustment component, the position of the contact electrode block can be adjusted. Furthermore, by using the pushing component and the elastic telescopic component, the adjusted contact electrode block can be easily brought into contact with the test material. The entire process does not require opening the test chamber, which facilitates the adjustment of the contact point during the test. Attached Figure Description

[0016] Figure 1 This is a perspective view of a resistivity testing device for high temperature and high pressure according to the present invention.

[0017] Figure 2This is a cross-sectional view of the test chamber of a resistivity testing device for high temperature and high pressure according to this utility model.

[0018] Figure 3 This is a cross-sectional view of a sealing cover for a resistivity testing device under high temperature and high pressure according to this utility model.

[0019] Figure 4 This is a cross-sectional view of a sliding rod of a resistivity testing device under high temperature and high pressure according to this utility model.

[0020] 1. Test chamber; 2. Sealing cover; 3. Observation window; 4. Intensifier; 5. Heating wire; 6. Placement platform; 7. Test material; 8. Connecting rod; 9. Fixing frame; 10. Motor; 11. Sliding rod; 12. Two-way lead screw; 13. Slider; 14. Slide groove; 15. Telescopic rod; 16. Groove; 17. Compression plate; 18. Spring; 19. Contact electrode block; 20. Guide groove; 21. Push plate; 22. Electric telescopic rod. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] according to Figure 1-4 As shown: This utility model provides a resistivity testing device for high temperature and high pressure conditions: it includes a test chamber 1, with a sealing cover 2 on the test chamber 1; a placement platform 6 is fixedly installed inside the test chamber 1, and the test material 7 is located on the placement platform 6; a booster 4 connected to the test chamber 1 is installed outside the test chamber 1, and a heating wire 5 is installed on the inner wall of the test chamber 1; an observation window 3 is opened on the test chamber 1 to facilitate the observation of the internal conditions by the operator. It also includes:

[0023] The fixing component is pressed onto the test material 7 and is fixedly connected to the bottom of the sealing cover 2;

[0024] like Figure 2 As shown, the fixing component includes a connecting rod 8 and a fixing frame 9; the connecting rod 8 is fixedly connected to the bottom of the sealing cover 2, and the fixing frame 9 is fixedly connected to the connecting rod 8, and the fixing frame 9 presses on the test material 7. By connecting the fixing component to the bottom of the density cover, the operation steps can be simplified.

[0025] The sliding rod 11 is located below the sealing cover 2, and the contact electrode block 19 is located below the contact electrode block 19. The contact electrode block 19 is located above the test material 7, and the contact electrode block 19 is connected to the sliding rod 11 through an elastic telescopic component.

[0026] The elastic telescopic assembly includes a telescopic rod 15, a compression plate 17, and a spring 18. A groove 16 is provided in the sliding rod 11, and the compression plate 17 is slidably disposed in the groove 16. The upper end of the telescopic rod 15 is fixedly connected to the compression plate 17, and the lower end of the telescopic rod 15 is fixedly connected to the contact electrode block 19. The spring 18 is located in the groove 16 and is sleeved on the telescopic rod 15.

[0027] The sealing cover 2 has a groove 14 inside, and a sliding adjustment component that can drive the sliding rod 11 to slide is provided in the groove 14; a pushing component that can push the contact electrode block 19 to rise and fall is provided below the sealing cover 2.

[0028] like Figure 4 As shown, the pushing assembly includes an electric telescopic rod 22 and a push plate 21. The electric telescopic rod 22 is fixedly installed below the sealing cover 2, and the push plate 21 is fixedly connected to the working end of the electric telescopic rod 22. A guide groove 20 is provided on the push plate 21, and the contact electrode block 19 is located below the push plate 21. The telescopic rod 15 passes through the guide groove 20 and is fixedly connected to the contact electrode block 19. The guide groove 20 ensures that the push plate 21 can push the contact electrode block 19 normally without affecting the horizontal sliding of the contact electrode block 19.

[0029] like Figure 3 As shown, the sliding adjustment assembly includes a motor 10, a bidirectional lead screw 12, and a slider 13. The motor 10 is mounted on the outer wall of the sealing cover 2. The bidirectional lead screw 12 is rotatably mounted within the slide groove 14 and is fixedly connected to the output shaft of the motor 10. Two sliders 13 are provided, and the two sliders 13 are threadedly connected to corresponding positions of the bidirectional lead screw 12. A limiting groove communicating with the slide groove 14 is provided at the bottom of the sealing cover 2, and the sliders 13 pass through the limiting groove and are fixedly connected to the sliding rod 11. The motor 10 and lead screw structure allows for convenient horizontal adjustment of the sliding rod 11.

[0030] The principle of this utility model

[0031] like Figure 2 As shown, when using this application, the test material 7 is placed on the placement platform 6. When the sealing cover 2 is installed to form a closed space with the test chamber 1, the fixing bracket 9 can press on the test material 7, thereby completing the fixing of the test material 7. Therefore, no additional operation is required to fix the test material 7. When the sealing cover 2 is opened, the fixing of the test material 7 is also released at the same time. No additional operation is required to release the fixing of the test material 7, making the operation convenient.

[0032] Start the electric telescopic pole 22, as follows Figure 3 , 4As shown, the push plate 21 moves downward, and the push rod pushes the contact electrode block 19 downward, so that the contact electrode below the contact electrode block 19 contacts the test material 7. At the same time, the electrode block releases the telescopic rod 15 and the compression plate 17, causing the compression plate 17 to compress the spring 18. At this time, the resistivity of the test material 7 can be tested normally. When it is necessary to change the contact point of the contact electrode block 19, first start the electric telescopic rod 22, which moves the push plate 21 upward. At this time, under the action of the spring 18's rebound force, the telescopic rod 15 and the compression plate 17 move the contact electrode block 19 upward, so that the contact electrode block 19 is no longer in contact with the test material 7. Start the motor 10, and under the drive of the slider 13, the two sliding rods 11 slide in the horizontal direction, while the telescopic rod 15 slides in the guide groove 20, thereby adjusting the position of the two contact electrode blocks 19. After the adjustment is completed, start the electric telescopic rod 22 again to push the contact electrode block 19 to the position of contact with the test material 7.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A resistivity testing device for high temperature and high pressure, comprising a test chamber (1), a sealing cover (2) provided on the test chamber (1); a placement platform (6) fixedly provided inside the test chamber (1), and a test material (7) located on the placement platform (6); a booster (4) connected to the test chamber (1) is provided outside the test chamber (1), and a heating wire (5) is provided on the inner wall of the test chamber (1); characterized in that, Also includes: The fixing component is pressed onto the test material (7) and is fixedly connected to the bottom of the sealing cap (2); A sliding rod (11) and a contact electrode block (19) are provided. The sliding rod (11) is located below the sealing cover (2). A contact electrode is provided below the contact electrode block (19). The contact electrode block (19) is located above the test material (7). The contact electrode block (19) is connected to the sliding rod (11) through an elastic telescopic component. A sliding groove (14) is provided in the sealing cover (2). A sliding adjustment component that can drive the sliding rod (11) to slide is provided in the sliding groove (14). A pushing component that can push the contact electrode block (19) to rise and fall is provided below the sealing cover (2).

2. The resistivity testing device under high temperature and high pressure according to claim 1, characterized in that: The fixing assembly includes a connecting rod (8) and a fixing frame (9); the connecting rod (8) is fixedly connected to the bottom of the sealing cover (2), the fixing frame (9) is fixedly connected to the connecting rod (8), and the fixing frame (9) presses on the test material (7).

3. The resistivity testing device under high temperature and high pressure according to claim 1, characterized in that: The elastic telescopic assembly includes a telescopic rod (15), a compression plate (17), and a spring (18). The sliding rod (11) has a groove (16) inside, and the compression plate (17) is slidably disposed in the groove (16). The upper end of the telescopic rod (15) is fixedly connected to the compression plate (17), and the lower end of the telescopic rod (15) is fixedly connected to the contact electrode block (19). The spring (18) is located in the groove (16) and is sleeved on the telescopic rod (15).

4. The resistivity testing device under high temperature and high pressure according to claim 3, characterized in that: The pushing assembly includes an electric telescopic rod (22) and a push plate (21); the electric telescopic rod (22) is fixedly installed below the sealing cover (2), and the push plate (21) is fixedly connected to the working end of the electric telescopic rod (22); a guide groove (20) is provided on the push plate (21), the contact electrode block (19) is located below the push plate (21), and the telescopic rod (15) passes through the guide groove (20) and is fixedly connected to the contact electrode block (19).

5. The resistivity testing device under high temperature and high pressure according to claim 1, characterized in that: The sliding adjustment assembly includes a motor (10), a bidirectional lead screw (12), and a slider (13). The motor (10) is located on the outer wall of the sealing cover (2), the bidirectional lead screw (12) is rotatably located in the slide groove (14), and the bidirectional lead screw (12) is fixedly connected to the output shaft of the motor (10). There are two sliders (13), and the two sliders (13) are threadedly connected to the corresponding positions of the bidirectional lead screw (12). The bottom of the sealing cover (2) is provided with a limiting groove that communicates with the slide groove (14), and the slider (13) passes through the limiting groove and is fixedly connected to the sliding rod (11).

6. The resistivity testing device under high temperature and high pressure according to claim 1, characterized in that: The test box (1) is provided with an observation window (3).

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