A graphite crucible detection device
The graphite crucible inspection device, which combines a high-definition camera and an air intake assembly, solves the problem that existing technologies can only detect surface defects. It enables comprehensive inspection of both the surface and interior of the graphite crucible, improving the accuracy and safety of the inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO HUAMING CARBON MATERIAL CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-08-04
AI Technical Summary
Existing graphite crucible testing devices can only detect surface defects and cannot effectively detect internal cracks, posing a safety hazard.
A high-definition camera is used to capture images of the surface and bottom of the graphite crucible from all angles, and an air intake assembly is used to perform pressure tests on the inside of the graphite crucible. Combined with the use of a pressure plate and a geared motor, this allows for comprehensive inspection of the graphite crucible.
It enables comprehensive inspection of the surface and interior of graphite crucibles, improving the accuracy and safety of inspections and preventing explosions or leaks during use.
Smart Images

Figure CN224594502U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of graphite crucible production technology, specifically to a graphite crucible testing device. Background Technology
[0002] Graphite crucibles are a type of crucible made from graphite, clay, silica, and wax stone. They are mainly used to smelt non-ferrous metals and their alloys, such as copper, brass, gold, silver, zinc, and lead. Graphite crucibles are high-temperature smelting containers made primarily of graphite and are widely used in industries such as metallurgy, casting, and semiconductors.
[0003] Given that graphite crucibles operate in high-temperature, high-pressure, and corrosive environments, their quality has a crucial impact on the accuracy, safety, and efficiency of experimental or production results. Therefore, rigorous testing of graphite crucibles is of great significance. This testing checks for defects such as cracks and breaks to prevent safety accidents such as explosions or leaks during use.
[0004] Existing graphite crucible inspection devices use high-definition cameras to photograph the surface of the graphite crucible to observe for defects such as cracks and breakage, thus only detecting internal cracks through surface observation. Therefore, we propose a new graphite crucible inspection device. Utility Model Content
[0005] Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a graphite crucible testing device, which solves the problems mentioned in the background art.
[0007] Technical solution
[0008] This utility model provides the following technical solution: a graphite crucible testing device, comprising a base, an air inlet assembly, a second placement plate, a pressure plate, and a reduction motor;
[0009] The base has a pre-reserved slot inside. A geared motor is mounted on the base away from the pre-reserved slot via a mounting bracket. The output shaft of the geared motor at the top of the base is fixed to a second placement plate via a flange. A support frame is bolted to the top of the base on one side of the second placement plate. A first high-definition camera is mounted through the support frame via a mounting bracket on one side. A second high-definition camera is mounted through the support frame at the top of the support frame via a mounting bracket. An air intake assembly is provided at the top of the base above the pre-reserved slot. The air intake assembly includes a first placement plate bolted to the top of the base. An L-shaped connecting pipe is sleeved inside the first placement plate. A pressure gauge is connected to the L-shaped connecting pipe on the outside of the pre-reserved slot via a pipe joint. A one-way valve is sleeved on the outside of the L-shaped connecting pipe at the bottom of the pressure gauge.
[0010] Furthermore, the base is located on the top of the outer side of the first placement plate and is fixed to a gantry frame by bolts. The top of the gantry frame is welded with an internal threaded sleeve, and a long screw is threaded through the internal threaded sleeve. The bottom of the long screw located inside the gantry frame is connected to a pressure plate by a bearing.
[0011] Furthermore, a sealing gasket is fitted on the top of the first placement tray, and a filter cover is connected to the top of the L-shaped connecting pipe through a threaded groove.
[0012] Furthermore, a sealing sleeve is provided between the base and the reserved groove, the L-shaped connecting pipe passes through the sealing sleeve, and the bottom end of the L-shaped connecting pipe located on the outside of the base is connected to a valve through a threaded groove.
[0013] Furthermore, the base is fixed with an observation window by bolts on the outer side of the reserved slot.
[0014] Furthermore, the top of the second placement tray is fitted with an anti-slip pad.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] The graphite crucible to be tested is placed on the second placement plate. The geared motor is turned on to drive the second placement plate and the graphite crucible on top of it to rotate slowly. The first high-definition camera takes pictures of the outside of the graphite crucible, and the second high-definition camera takes pictures of the bottom of the graphite crucible. The surface of the graphite crucible can be captured in a comprehensive way. The captured images are transmitted to the computer screen.
[0017] Place the graphite crucible on the top of the first placement plate, rotate the long screw to push the pressure plate down through the internal threaded sleeve, and press the graphite crucible on the first placement plate tightly. Open the valve to allow compressed air to flow through the L-shaped connecting pipe into the graphite crucible on the first placement plate. Observe the pressure gauge to understand the pressure inside the graphite crucible. Close the valve. The one-way valve can prevent the compressed air inside the graphite crucible from flowing back. After a period of time, observe whether the pressure inside the graphite crucible has decreased.
[0018] This graphite crucible inspection device uses a first high-definition camera and a second high-definition camera to comprehensively photograph the surface of the graphite crucible driven by the geared motor, facilitating personnel to inspect the graphite crucible surface for defects such as cracks and damage. By inflating the graphite crucible placed on the first placement plate and observing the pressure changes inside the graphite crucible, it is possible to determine whether there are cracks inside the graphite crucible. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a cross-sectional view of the base of this utility model;
[0021] Figure 3 This is a schematic diagram of the air intake assembly structure of this utility model;
[0022] In the diagram: 1. Base; 2. Air intake assembly; 201. First placement tray; 202. L-shaped connecting pipe; 203. Pressure gauge; 204. One-way valve; 205. Valve; 206. Sealing gasket; 207. Sealing sleeve; 208. Filter cover; 3. Gantry frame; 4. Second placement tray; 5. Support frame; 6. Internal threaded sleeve; 7. Long screw; 8. Pressure plate; 9. First high-definition camera; 10. Second high-definition camera; 11. Observation window; 12. Anti-slip pad; 13. Gear motor; 14. Reserved slot. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-3 In this embodiment of the utility model, it includes a base 1, an air intake component 2, a second placement plate 4, a pressure plate 8, and a reduction motor 13;
[0025] The base 1 has a reserved slot 14 inside. A geared motor 13 is installed inside the base 1 away from the reserved slot 14 via a mounting bracket. The output shaft of the geared motor 13 at the top of the base 1 is fixed to a second placement plate 4 via a flange. A support frame 5 is fixed to the top of the base 1 on one side of the second placement plate 4 via bolts. A first high-definition camera 9 is installed through the support frame 5 via a mounting bracket. A second high-definition camera 10 is installed through the top of the support frame 5 via a mounting bracket. An air intake assembly 2 is set at the top of the base 1 above the reserved slot 14. The air intake assembly 2 includes a first placement plate 201 fixed to the top of the base 1 via bolts. An L-shaped connecting pipe 202 is sleeved inside the first placement plate 201. A pressure gauge 203 is connected to the L-shaped connecting pipe 202 on the outside side of the reserved slot 14 via a pipe joint. A one-way valve 204 is sleeved on the outside of the bottom of the pressure gauge 203 via the L-shaped connecting pipe 202.
[0026] The base 1 is located on the top of the first placement plate 201 and is fixed with a gantry frame 3 by bolts. The top of the gantry frame 3 is welded with an internal threaded sleeve 6. A long screw 7 is sleeved through the internal threaded sleeve 6. The bottom of the long screw 7 located inside the gantry frame 3 is connected to a pressure plate 8 through a bearing. When the long screw 7 rotates, it pushes the pressure plate 8 down through the internal threaded sleeve 6, which can press the graphite crucible on the first placement plate 201 tightly.
[0027] The first placement plate 201 is fitted with a sealing gasket 206 on its top, and the top of the L-shaped connecting pipe 202 is connected to a filter cover 208 through a threaded groove. The sealing gasket 206 is used to seal between the first placement plate 201 and the graphite crucible, and the filter cover 208 is used to filter impurities.
[0028] A sealing sleeve 207 is provided between the base 1 and the reserved groove 14. An L-shaped connecting pipe 202 passes through the sealing sleeve 207. The bottom end of the L-shaped connecting pipe 202 located on the outside of the base 1 is connected to a valve 205 through a threaded groove. The sealing sleeve 207 seals between the L-shaped connecting pipe 202 and the first placement plate 201 to prevent pressure leakage inside the graphite crucible.
[0029] Among them, the base 1 is located on the outer side of the reserved groove 14 and is fixed with an observation window 11 by bolts. The observation window 11 is set to facilitate personnel to observe the pressure gauge 203 located in the reserved groove 14.
[0030] The second placement tray 4 is fitted with an anti-slip pad 12 on top, which serves to prevent slipping.
[0031] The working principle of this invention is as follows: A person connects the device to an external power source using a power cord, connects the air supply equipment to valve 205 using an air hose, and connects the first high-definition camera 9 and the second high-definition camera 10 to a computer using signal cables. The graphite crucible to be tested is placed on the second placement plate 4. The reduction motor 13 is turned on to drive the second placement plate 4 and the graphite crucible on top of it to rotate slowly. The first high-definition camera 9 captures images of the outside of the graphite crucible, and the second high-definition camera 10 captures images of the bottom of the graphite crucible, thus comprehensively capturing the surface of the graphite crucible. The captured images are transmitted to the computer display screen. To facilitate personnel inspection of the graphite crucible surface for defects such as cracks and damage, the top of the first placement plate 201 of the graphite crucible is positioned, and the long screw 7 is rotated to push the pressure plate 8 down through the internal threaded sleeve 6, pressing the graphite crucible on the first placement plate 201 tightly. The valve 205 is opened to allow compressed air to flow through the L-shaped connecting pipe 202 into the graphite crucible on the first placement plate 201. The pressure gauge 203 is observed to understand the pressure inside the graphite crucible. The valve 205 is closed, and the one-way valve 204 can prevent the compressed air inside the graphite crucible from flowing back. After a period of time, the pressure inside the graphite crucible is observed to see if it has decreased, which can help determine if there are cracks inside the graphite crucible.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A graphite crucible testing device, comprising a base (1), an air inlet assembly (2), a second placement plate (4), a pressure plate (8), and a geared motor (13); Its features are: The base (1) has a reserved slot (14) inside. A geared motor (13) is installed inside the base (1) away from the reserved slot (14) via a mounting bracket. The output shaft of the geared motor (13) located at the top of the base (1) is fixed to a second placement plate (4) via a flange. A support frame (5) is fixed to the top of the base (1) on one side of the second placement plate (4) via bolts. A first high-definition camera (9) is installed through the support frame (5) on one side via a mounting bracket. A second high-definition camera is installed through the support frame (5) at the top inside the support frame (5) via a mounting bracket. The camera (10) has an air intake assembly (2) located on the top of the base (1) above the reserved slot (14). The air intake assembly (2) includes a first placement plate (201) fixed to the top of the base (1) by bolts. An L-shaped connecting pipe (202) is sleeved inside the first placement plate (201). A pressure gauge (203) is connected to the L-shaped connecting pipe (202) on the outside side of the reserved slot (14) through a pipe joint. A one-way valve (204) is sleeved on the outside of the bottom of the L-shaped connecting pipe (202) of the pressure gauge (203).
2. The graphite crucible testing device according to claim 1, characterized in that: The base (1) is located on the top of the first placement plate (201) and is fixed with a gantry frame (3) by bolts. The top of the gantry frame (3) is welded with an internal threaded sleeve (6). A long screw (7) is sleeved through the internal threaded sleeve (6). The bottom of the long screw (7) located inside the gantry frame (3) is connected to a pressure plate (8) by a bearing.
3. The graphite crucible testing device according to claim 1, characterized in that: The first placement tray (201) is fitted with a sealing gasket (206) on top, and the top end of the L-shaped connecting pipe (202) is connected to a filter cover (208) through a threaded groove.
4. The graphite crucible testing device according to claim 1, characterized in that: A sealing sleeve (207) is provided between the base (1) and the reserved groove (14). The L-shaped connecting pipe (202) passes through the sealing sleeve (207). The bottom end of the L-shaped connecting pipe (202) located outside the base (1) is connected to a valve (205) through a threaded groove.
5. The graphite crucible testing device according to claim 1, characterized in that: The base (1) is located on the outer side of the reserved slot (14) and has an observation window (11) fixed by bolts.
6. The graphite crucible testing device according to claim 1, characterized in that: The second placement tray (4) is fitted with an anti-slip pad (12) on top.