Ceramic crucible inner bottom detection equipment

Abstract

The invention belongs to the technical field of crucible detection, and discloses ceramic crucible inner bottom detection equipment which comprises a base, a connecting cylinder and a lead screw, the lead screw is arranged on one side of the connecting cylinder through a bearing, and the outer surface of the lead screw is sleeved with a sleeve in a threaded mode. An output shaft of a second motor is controlled to rotate forwards to drive a lead screw to rotate forwards, so that a sleeve drives a mounting plate to move downwards through a supporting plate, a sensor is located in a to-be-detected crucible, an output shaft of a first motor is controlled to rotate forwards, a rotating rod is further rotated, a rack slides, and the sensor and the rack are connected together; when the rack moves, the sensor is driven to move, so that a probe on the sensor is in contact with the inner bottom of the crucible for detection, and therefore, when the crucible is detected, due to the mobility of the sensor, a plurality of positions of the inner bottom of the crucible can be covered for detection, and the detection practicability is improved.

Description

Technical Field

[0001] The invention belongs to the field of crucible detection, in particular to a device for detecting the inner bottom of a ceramic crucible. Background Art

[0002] Crucibles are widely used in high-temperature smelting, chemical experiments and other fields. They are high-temperature refractory containers whose main function is to carry molten or heated substances. In actual use, crucibles are often exposed to harsh environments such as high temperature and high pressure. Therefore, the integrity of their material is particularly important. Damage to the bottom of the crucible, such as cracks, corrosion, and dents, directly affects the performance and safety of the crucible, and may even cause the crucible to break or fail.

[0003] During testing, some equipment relies on a sensor probe to contact the inner bottom of the crucible to determine whether there are cracks or defects. It can only detect in a single direction and cannot effectively cover multiple positions of the inner bottom of the crucible, making it easy to miss certain areas of the crucible. Secondly, due to the poor fixation of the crucible during the test process, the crucible is prone to deviation during the test, resulting in inaccurate detection and difficulty in ensuring its stability. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a ceramic crucible inner bottom detection device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the device includes a base and a connecting tube: A screw rod is arranged on one side of the connecting tube through a bearing, and a sleeve is threadedly sleeved on the outer surface of the screw rod. The screw rod can rotate through the bearing, and the sleeve does not rotate with the screw rod. The sleeve moves up and down on the outer surface of the screw rod; A support plate is fixedly provided on the outer surface of the sleeve, and a mounting plate is fixedly provided on one side of the support plate; The rack is slidably arranged on the inner wall of the mounting plate, and a gear is meshed on one side of the rack. When the gear rotates in different directions, the rack moves to different positions.

[0006] The transmission mechanism that this second motor is connected with this second motor is that this second motor is connected with this second motor, and this second motor is connected with this second motor washer.

[0007] In the above technical solution, preferably, a sealing box is fixedly provided on one side of the inner wall of the base, one side of the connecting tube is fixedly provided on one side of the sealing box, a pressure plate is threadedly sleeved on the outer surface of the screw rod, and the pressure plate is slidably provided on the inner wall of the sealing box. The pressure plate can slide on the inner wall of the sealing box, and when the screw rod rotates forward, the pressure plate moves downward inside the sealing box.

[0008] In the above technical solution, preferably, two guide tubes are fixedly provided on the outer surface of the sealed box, two bottom plates are fixedly provided on one side of the inner wall of the base, and slide cylinders are fixedly provided on the opposite sides of the two bottom plates. The downward pressing plate will compress the gas inside the sealed box and discharge the compressed gas into the interior of the two slide cylinders through the two guide tubes.

[0009] In the above technical solution, preferably, one end of the two guide tubes is fixedly arranged on the outer surface of the two slide cylinders respectively, and a piston plate is movably embedded in the inner wall of the two slide cylinders. A transmission rod is fixedly arranged on one side of the two piston plates. The two piston plates can slide on the inner walls of the two slide cylinders, and the gas discharged into the interior of the two slide cylinders through the two guide tubes will push the two piston plates to move relative to each other on the inner walls of the two slide cylinders.

[0010] In the above technical solution, preferably, a positioning plate is fixedly provided at the opposite end of the two transmission rods, a rubber pad is fixedly provided on one side of the two positioning plates, and a plurality of limit plates are fixedly provided on the inner walls of the two slide cylinders. The two positioning plates are driven to move relative to each other by the two piston plates, so that the two positioning plates are pressed on the outer surface of the crucible through the two rubber pads to fix its position. The two rubber pads are elastic and soft, which protects the crucible and avoids excessive pressure on the surface of the ceramic crucible, resulting in damage.

[0011] In the above technical solution, preferably, a slide is slidably provided on the inner wall of the mounting plate, and one side of the slide is fixedly provided on one side of the rack. The slide can slide on the inner wall of the mounting plate, and when the rack moves, the slide is driven to move, and further the first connecting rod is driven to move, thereby causing the sensor to move.

[0012] In the above technical solution, preferably, a first connecting rod is fixedly provided on one side of the skateboard close to the base, a circular plate is fixedly provided on one end of the first connecting rod, a second connecting rod is provided on one side of the circular plate through a bearing, and the second connecting rod can rotate on one side of the circular plate.

[0013] In the above technical solution, preferably, a mounting seat is fixedly provided on one side of the second connecting rod, a sensor is installed on the inner wall of the mounting seat, and a limiting rod is movably embedded in one side of the circular plate. By removing the limiting rod from the inside of any through hole, the mounting seat is further driven to rotate through the second connecting rod by rotating the rotating plate. The mounting seat supports the sensor, further allowing the sensor probe to be in different directions to detect different positions of the bottom of the crucible.

[0014] In the above technical solution, preferably, a rotating plate is fixedly sleeved on the outer surface of the second connecting rod, and a plurality of through holes are opened on one side of the rotating plate. The limiting rod matches any through hole, and the limiting rod is inserted into any through hole to fix the position of the rotating plate, and further fix the position of the sensor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When inspecting the inner bottom of a ceramic crucible, the present invention places the crucible to be inspected below the sensor, and the output shaft of the second motor can rotate forward and backward. Two fixed rods enable the second motor to be installed on the outer surface of the connecting tube, and the output shaft of the second motor is controlled to rotate forward to drive the screw to rotate forward. The support plate can slide on the inner wall of the vertical groove, and then when the screw rotates in different directions, the sleeve moves up and down to different positions on the outer surface of the screw. At this time, the output shaft of the second motor drives the screw to rotate forward, further causing the sleeve to drive the mounting plate downward through the support plate, so that the sensor is inside the crucible to be inspected. At this time, the external power switch of the first motor is turned on, and the output shaft of the first motor is controlled to rotate forward, further causing the rotating rod to rotate, thereby causing the rack to slide. The sensor and the rack are connected together, and when the rack moves, the sensor is driven to move, so that the probe on the sensor contacts the inner bottom of the crucible for detection. Therefore, when inspecting the crucible, due to the mobility of the sensor, multiple positions of the inner bottom of the crucible can be covered for detection, thereby improving the practicality of the detection.

[0016] 2. When the present invention detects the crucible, the crucible is located below the sensor and in the middle of the two positioning plates. During detection, the screw rotates forward to drive the sleeve to move downward, and the pressure plate can slide on the inner wall of the sealed box. When the screw rotates forward, the pressure plate moves downward inside the sealed box, and the downward pressure of the pressure plate compresses the gas inside the sealed box, and discharges the compressed gas into the interior of the two slide cylinders through the two guide tubes. Since the two piston plates can slide on the inner walls of the two slide cylinders, multiple limit plates have a limiting effect on the two piston plates, preventing the two piston plates from contacting one side of the inner wall of the two slide cylinders. , affecting the exhaust of the two guide pipes. The gas discharged into the two slide cylinders through the two guide pipes will push the two piston plates to move relative to each other on the inner walls of the two slide cylinders, and further drive the two positioning plates to move relative to each other through the two piston plates, so that the two positioning plates are pressed on the outer surface of the crucible through the two rubber pads to fix its position. The two rubber pads are elastic and soft, which protects the crucible and avoids excessive pressure on the surface of the ceramic crucible, resulting in damage. Therefore, when the crucible is tested, the crucible has better fixation, preventing the crucible position from shifting during testing, and the fixing method is relatively simple.

[0017] 3. When inspecting the crucible, the present invention detects cracks and defects on the inner bottom of the crucible through a sensor, and the slide plate can slide on the inner wall of the mounting plate, and when the rack moves, it drives the slide plate to move, further drives the first connecting rod to move, and thus moves the sensor, and the second connecting rod can rotate on one side of the circular plate, by removing the limit rod from the inside of any through hole, and then rotating the rotating plate to further drive the mounting seat to rotate through the second connecting rod, the mounting seat has a supporting effect on the sensor, and further makes the sensor probe in different directions, and detects different positions of the inner bottom of the crucible, inserts the limit rod into any through hole, fixes the position of the rotating plate, and further fixes the position of the sensor, so that when using the detection equipment, multiple areas of the inner bottom of the crucible can be scanned to ensure that each part is fully detected, which helps to provide a comprehensive damage assessment of the crucible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention provides a schematic diagram of the overall three-dimensional structure of a ceramic crucible inner bottom detection device.

[0019] Figure 2 The present invention provides a rear-view stereoscopic structural schematic diagram of a ceramic crucible inner bottom detection device.

[0020] Figure 3 The present invention provides a schematic diagram of the cross-sectional three-dimensional structure of a base in a ceramic crucible inner bottom detection device.

[0021] Figure 4 The present invention provides a schematic diagram of the cross-sectional three-dimensional structure of a connecting tube in a ceramic crucible inner bottom detection device.

[0022] Figure 5 The present invention provides a schematic diagram of the cross-sectional three-dimensional structure of a mounting plate in a ceramic crucible inner bottom detection device.

[0023] Figure 6 The present invention provides a schematic diagram of the cross-sectional three-dimensional structure of a sealing box in a ceramic crucible inner bottom detection device.

[0024] Figure 7 The present invention provides a schematic diagram of the cross-sectional three-dimensional structure of a slide barrel in a ceramic crucible inner bottom detection device.

[0025] Figure 8 The present invention proposes a ceramic crucible bottom detection device Figure 5 A in the figure is an enlarged schematic diagram of the three-dimensional structure.

[0026] Legend: 1. Base; 2. Connecting cylinder; 201. Screw rod; 202. Sleeve; 203. Support plate; 204. Mounting plate; 205. Rack; 206. First motor; 207. Rotating rod; 208. Gear; 209. Protective box; 210. Fixed rod; 211. Second motor; 212. Vertical slot; 3. Bottom plate; 301. Slide; 302. Piston plate; 303. Transmission rod; 304. Positioning plate; 305. Rubber pad; 306. Limit plate; 307. Sealing box; 308. Pressing plate; 309. Guide pipe; 4. Slide plate; 401. First connecting rod; 402. Round plate; 403. Second connecting rod; 404. Rotating plate; 405. Through hole; 406. Limit rod; 407. Mounting seat; 408. Sensor. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1 to 8As shown, the present invention provides a ceramic crucible inner bottom detection device, which includes a base 1 and a connecting tube 2: a screw rod 201, which is arranged on one side of the connecting tube 2 through a bearing, and a sleeve 202 is threadedly sleeved on the outer surface of the screw rod 201; a support plate 203, which is fixedly arranged on the outer surface of the sleeve 202, and a mounting plate 204 is fixedly arranged on one side of the support plate 203; a rack 205, which is slidably arranged on the inner wall of the mounting plate 204, and a gear 208 is meshed with one side of the rack 205; a first motor 20 is installed on one side of the mounting plate 204 6. A rotating rod 207 is fixedly provided on the output shaft of the first motor 206. The outer surface of the rotating rod 207 is fixedly sleeved on the inner wall of the gear 208. A protective box 209 is provided on one side of the mounting plate 204 by screws. Two fixing rods 210 are fixedly provided on the outer surface of the connecting tube 2. The second motor 211 is installed on the opposite ends of the two fixing rods 210. The output shaft of the second motor 211 is fixedly provided on one end of the screw rod 201. A vertical slot 212 is opened on one side of the connecting tube 2, and the support plate 203 is slidably provided on the inner wall of the vertical slot 212.

[0029] When in use, the crucible to be tested is placed below the sensor 408. The output shaft of the second motor 211 can rotate forward and reverse. The two fixing rods 210 enable the second motor 211 to be installed on the outer surface of the connecting tube 2. By controlling the output shaft of the second motor 211 to rotate forward, the screw rod 201 is driven to rotate forward. The support plate 203 can slide on the inner wall of the vertical groove 212. Then, when the screw rod 201 rotates in different directions, the sleeve 202 moves up and down to different positions on the outer surface of the screw rod 201. At this time, the output shaft of the second motor 211 drives the screw rod 201 to rotate forward. The rod 201 rotates forward, further causing the sleeve 202 to drive the mounting plate 204 to move downward through the support plate 203, so that the sensor 408 is inside the crucible to be detected. At this time, the external power switch of the first motor 206 is turned on, and the output shaft of the first motor 206 is controlled to rotate forward, further causing the rotating rod 207 to rotate, thereby causing the rack 205 to slide. The sensor 408 is connected to the rack 205, and when the rack 205 moves, it drives the sensor 408 to move, so that the probe on the sensor 408 contacts the inner bottom of the crucible for detection.

[0030] See also Figures 1 to 8 In one embodiment, a sealing box 307 is fixedly provided on one side of the inner wall of the base 1, one side of the connecting tube 2 is fixedly provided on one side of the sealing box 307, a pressure plate 308 is threadedly sleeved on the outer surface of the screw rod 201, and the pressure plate 308 is slidably provided on the inner wall of the sealing box 307. The pressure plate 308 can slide on the inner wall of the sealing box 307. When the screw rod 201 rotates forward, the pressure plate 308 moves downward inside the sealing box 307.

[0031] See also Figures 1 to 8In one embodiment, two guide tubes 309 are fixedly provided on the outer surface of the sealed box 307, two bottom plates 3 are fixedly provided on one side of the inner wall of the base 1, and slide cylinders 301 are fixedly provided on opposite sides of the two bottom plates 3. The downward pressing plate 308 compresses the gas inside the sealed box 307 and discharges the compressed gas into the interior of the two slide cylinders 301 through the two guide tubes 309.

[0032] See also Figures 1 to 8 In one embodiment, one end of the two guide tubes 309 is fixedly set on the outer surface of the two slide cylinders 301, and a piston plate 302 is movably embedded in the inner wall of the two slide cylinders 301. A transmission rod 303 is fixedly set on one side of the two piston plates 302. The two piston plates 302 can slide on the inner wall of the two slide cylinders 301. The gas discharged into the interior of the two slide cylinders 301 through the two guide tubes 309 will push the two piston plates 302 to move relative to each other on the inner wall of the two slide cylinders 301.

[0033] See also Figures 1 to 8 In one embodiment, a positioning plate 304 is fixedly provided at the opposite end of the two transmission rods 303, and a rubber pad 305 is fixedly provided on one side of the two positioning plates 304. A plurality of limit plates 306 are fixedly provided on the inner wall of the two slide cylinders 301. The two positioning plates 304 are driven to move relative to each other by the two piston plates 302, so that the two positioning plates 304 are pressed against the outer surface of the crucible through the two rubber pads 305 to fix its position. The two rubber pads 305 are elastic and soft, which protects the crucible and avoids excessive pressure on the surface of the ceramic crucible, resulting in damage.

[0034] See also Figures 1 to 8 In one embodiment, a slide plate 4 is slidably provided on the inner wall of the mounting plate 204, and one side of the slide plate 4 is fixedly provided on one side of the rack 205. The slide plate 4 can slide on the inner wall of the mounting plate 204, and when the rack 205 moves, the slide plate 4 is driven to move, and further the first connecting rod 401 is driven to move, thereby causing the sensor 408 to move.

[0035] See also Figures 1 to 8 In one embodiment, a first connecting rod 401 is fixedly provided on one side of the skateboard 4 close to the base 1, a circular plate 402 is fixedly provided on one end of the first connecting rod 401, and a second connecting rod 403 is provided on one side of the circular plate 402 through a bearing, and the second connecting rod 403 can rotate on one side of the circular plate 402.

[0036] See also Figures 1 to 8In one embodiment, a mounting base 407 is fixedly provided on one side of the second connecting rod 403, and a sensor 408 is installed on the inner wall of the mounting base 407. A limiting rod 406 is movably embedded in one side of the circular plate 402. By removing the limiting rod 406 from the inside of any through hole 405, the mounting base 407 is further driven to rotate through the second connecting rod 403 by rotating the rotating plate 404. The mounting base 407 supports the sensor 408, further allowing the sensor 408 probe to be in different directions to detect different positions of the bottom of the crucible.

[0037] See also Figures 1 to 8 In one embodiment, a rotating plate 404 is fixedly sleeved on the outer surface of the second connecting rod 403, and a plurality of through holes 405 are opened on one side of the rotating plate 404. The limiting rod 406 matches any one of the through holes 405. The limiting rod 406 is inserted into any one of the through holes 405 to fix the position of the rotating plate 404 and further fix the position of the sensor 408.

[0038] The working principle and use process of the present invention are as follows: when inspecting the inner bottom of a ceramic crucible, the crucible to be inspected is placed below the sensor 408, the output shaft of the second motor 211 can rotate forward and reverse, and the two fixing rods 210 enable the second motor 211 to be installed on the outer surface of the connecting tube 2, and the screw rod 201 is driven to rotate forward by controlling the output shaft of the second motor 211 to rotate forward, and the support plate 203 can slide on the inner wall of the vertical groove 212, and then when the screw rod 201 rotates in different directions, the sleeve 202 moves up and down to different positions on the outer surface of the screw rod 201, and at this time, the output shaft of the second motor 211 drives the screw rod 201 to rotate forward, further making the sleeve The cylinder 202 drives the mounting plate 204 to move downward via the support plate 203, so that the sensor 408 is located inside the crucible to be inspected. At this time, the external power switch of the first motor 206 is turned on, and the output shaft of the first motor 206 is controlled to rotate in the forward direction, which further rotates the rotating rod 207, thereby causing the rack 205 to slide. The sensor 408 is connected to the rack 205. When the rack 205 moves, the sensor 408 is driven to move, so that the probe on the sensor 408 contacts the inner bottom of the crucible for inspection. Therefore, when inspecting the crucible, due to the mobility of the sensor 408, multiple positions on the inner bottom of the crucible can be covered for inspection, thereby improving the practicality of the inspection. When detecting the crucible, the crucible is in a lower position of the sensor 408 and in the middle position of the two positioning plates 304. During the detection, the screw rod 201 rotates forward to drive the sleeve 202 to move downward, and the pressure plate 308 can slide on the inner wall of the sealing box 307. When the screw rod 201 rotates forward, the pressure plate 308 moves downward inside the sealing box 307, and the downward pressure of the pressure plate 308 will compress the gas inside the sealing box 307, and discharge the compressed gas into the interior of the two slide cylinders 301 through the two guide tubes 309. Since the two piston plates 302 can slide on the inner walls of the two slide cylinders 301, multiple limit plates 306 have a limiting effect on the two piston plates 302, preventing the two piston plates 302 and the two slide cylinders from sliding. The inner wall of the cylinder 301 contacts one side, affecting the exhaust of the two guide tubes 309. The gas discharged into the interior of the two slide cylinders 301 through the two guide tubes 309 will push the two piston plates 302 to move relative to each other on the inner walls of the two slide cylinders 301. The two piston plates 302 further drive the two positioning plates 304 to move relative to each other, so that the two positioning plates 304 are pressed against the outer surface of the crucible through the two rubber pads 305 to fix its position. The two rubber pads 305 have elasticity and flexibility, which protect the crucible and avoid excessive pressure on the surface of the ceramic crucible, resulting in damage. Therefore, when the crucible is tested, the crucible is better fixed, preventing the crucible position from shifting during testing, and the fixing method is relatively simple. When inspecting the crucible, cracks and defects on the bottom of the crucible are detected by sensor 408. The slide plate 4 can slide on the inner wall of the mounting plate 204. When the rack 205 moves, the slide plate 4 is driven to move, and the first connecting rod 401 is further driven to move, thereby moving the sensor 408. The second connecting rod 403 can be rotated on one side of the circular plate 402. By removing the limit rod 406 from the inside of any through hole 405, the mounting seat 407 is further driven to rotate by the second connecting rod 403 by rotating the rotating plate 404. The mounting seat 407 supports the sensor 408, further making the sensor 408 probe in different directions, and inspecting different positions of the bottom of the crucible. The limit rod 406 is inserted into any through hole 405, the position of the rotating plate 404 is fixed, and the position of the sensor 408 is further fixed. When using the inspection equipment, multiple areas of the bottom of the crucible can be scanned to ensure that each part is fully inspected, which helps to provide a comprehensive damage assessment of the crucible.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A ceramic crucible inner bottom detection device, characterized in that: The device comprises a base (1) and a connecting tube (2): A screw rod (201) is arranged on one side of the connecting cylinder (2) via a bearing, and a sleeve (202) is threadedly sleeved on the outer surface of the screw rod (201); A support plate (203) is fixedly provided on the outer surface of the sleeve (202), and a mounting plate (204) is fixedly provided on one side of the support plate (203); A rack (205) is slidably arranged on the inner wall of the mounting plate (204), and a gear (208) is meshedly arranged on one side of the rack (205).

2. The ceramic crucible inner bottom detection device according to claim 1, characterized in that: A first motor (206) is installed on one side of the mounting plate (204), and a rotating rod (207) is fixedly provided on the output shaft of the first motor (206). The outer surface of the rotating rod (207) is fixedly sleeved on the inner wall of the gear (208). A protective box (209) is provided on one side of the mounting plate (204) via screws. Two fixing rods (210) are fixedly provided on the outer surface of the connecting tube (2), and a second motor (211) is installed at opposite ends of the two fixing rods (210). The output shaft of the second motor (211) is fixedly provided on one end of the screw rod (201). A vertical slot (212) is provided on one side of the connecting tube (2), and the support plate (203) is slidably provided on the inner wall of the vertical slot (212).

3. The ceramic crucible inner bottom detection device according to claim 1, characterized in that: A sealing box (307) is fixedly provided on one side of the inner wall of the base (1), one side of the connecting tube (2) is fixedly provided on one side of the sealing box (307), a pressing plate (308) is threadedly provided on the outer surface of the screw rod (201), and the pressing plate (308) is slidably provided on the inner wall of the sealing box (307).

4. The ceramic crucible inner bottom detection device according to claim 3, characterized in that: Two guide tubes (309) are fixedly provided on the outer surface of the sealing box (307), two bottom plates (3) are fixedly provided on one side of the inner wall of the base (1), and slide cylinders (301) are fixedly provided on opposite sides of the two bottom plates (3).

5. The ceramic crucible inner bottom detection device according to claim 4, characterized in that: One end of the two guide tubes (309) is fixedly arranged on the outer surface of the two slide cylinders (301), and a piston plate (302) is movably embedded in the inner wall of the two slide cylinders (301). A transmission rod (303) is fixedly arranged on one side of the two piston plates (302).

6. The ceramic crucible inner bottom detection device according to claim 5, characterized in that: A positioning plate (304) is fixedly provided at one opposite end of the two transmission rods (303), a rubber pad (305) is fixedly provided on one side of the two positioning plates (304), and a plurality of limit plates (306) are fixedly provided on the inner walls of the two slide cylinders (301).

7. The ceramic crucible inner bottom detection device according to claim 1, characterized in that: A slide plate (4) is slidably provided on the inner wall of the mounting plate (204), and one side of the slide plate (4) is fixedly provided on one side of the rack (205).

8. The ceramic crucible inner bottom detection device according to claim 7, characterized in that: A first connecting rod (401) is fixedly provided on one side of the slide plate (4) close to the base (1), a circular plate (402) is fixedly provided on one end of the first connecting rod (401), and a second connecting rod (403) is provided on one side of the circular plate (402) via a bearing.

9. The ceramic crucible inner bottom detection device according to claim 8, characterized in that: A mounting seat (407) is fixedly provided on one side of the second connecting rod (403), a sensor (408) is installed on the inner wall of the mounting seat (407), and a limiting rod (406) is movably embedded on one side of the circular plate (402).

10. The ceramic crucible inner bottom detection device according to claim 9, characterized in that: A rotating plate (404) is fixedly sleeved on the outer surface of the second connecting rod (403), and a plurality of through holes (405) are opened on one side of the rotating plate (404). The limiting rod (406) matches any one of the through holes (405).

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