A rotatable high temperature endoscope

Abstract

The present invention relates to the technical field of endoscopes, and specifically discloses a rotatable high-temperature endoscope, comprising a cooling component, a rotating component, a lens changing component and an objective lens component, wherein the rotating component is located outside the cooling component, the lens changing component is located on the right side of the rotating component, and the objective lens component is located inside the lens changing component; the cooling component comprises a connecting shell, a camera connector, a cooling shell, an air cooling pipe and two water cooling pipes, the camera connector is fixedly connected to the left end of the connecting shell, the cooling shell is fixedly connected to the right end of the connecting shell, and the lower end of the connecting shell is fixedly provided with an air cooling interface, a water inlet interface and a water outlet interface, the air cooling interface is located on the left side of the water inlet interface, and the water outlet interface is located on the right side of the water inlet interface. The present invention can automatically change the objective lens, automatically adjust the position of the required objective lens, and can rotate the objective lens angle when in use to achieve observation at various angles, and is more resistant to high temperatures.

Description

Technical Field

[0001] The invention relates to the technical field of endoscopes, and in particular to a rotatable high-temperature endoscope. Background Art

[0002] High temperature endoscope is an industrial equipment designed for observation and detection in extremely high temperature environment. Its main application fields include oil refining, chemical industry, metal smelting, glass manufacturing, high temperature heat treatment and experimental research. These devices can work normally at temperatures up to 2000℃, ensuring safety and accuracy in high temperature environment.

[0003] The existing technology still has the following areas for improvement: the objective lens of existing endoscopes is usually fixed. When the angle needs to be adjusted, the whole body needs to be rotated. Under high temperature conditions, workers are more likely to be injured, and manual operation is difficult to accurately achieve the required rotation angle. The heat resistance of existing endoscopes is also poor. When the objective lens needs to be replaced, it is necessary to wait for the objective lens to cool down before performing manual operation, which can easily cause burns and is also time-consuming and labor-intensive. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a rotatable high-temperature endoscope, which can automatically replace the objective lens, automatically adjust the position of the required objective lens, rotate the objective lens angle during use, realize observation at various angles, and is more resistant to high temperatures.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A rotatable high-temperature endoscope comprises a cooling assembly, a rotating assembly, a lens changing assembly and an objective lens assembly, wherein the rotating assembly is located outside the cooling assembly, the lens changing assembly is located on the right side of the rotating assembly, and the objective lens assembly is located inside the lens changing assembly;

[0007] The cooling assembly includes a connecting shell, a camera connector, a cooling shell, an air cooling pipe and two water cooling pipes, the camera connector is fixedly connected to the left end of the connecting shell, the cooling shell is fixedly connected to the right end of the connecting shell, and the lower end of the connecting shell is fixedly provided with an air cooling interface, a water inlet interface and a water outlet interface, the air cooling interface is located on the left side of the water inlet interface, and the water outlet interface is located on the right side of the water inlet interface;

[0008] An air delivery device is fixedly provided on one side of the air cooling interface close to the inside of the connection shell, an image connection tube is fixedly provided on the right side of the camera connector, the image connection tube is located in the middle position inside the cooling shell, the right side of the image connection tube is fixedly connected to the right end inside the cooling shell, and the air cooling pipe and the two water cooling pipes are all located inside the cooling shell;

[0009] The air cooling pipe is in a double helix structure, and includes an upper helix pipe and a lower helix pipe. The image connecting pipe is located between the upper helix pipe and the lower helix pipe. The two water cooling pipes are located at the middle of the upper helix pipe and the lower helix pipe, respectively. A first connector is fixedly provided between the right side of the image connecting pipe and the cooling housing.

[0010] The left ends of the two water-cooling pipes are fixedly connected to the air conveyor, the upper spiral pipe is fixedly connected to the side of the water inlet interface close to the inside of the connecting shell, and the lower spiral pipe is fixedly connected to the side of the water outlet interface close to the inside of the connecting shell.

[0011] Further, the rotating assembly includes a supporting shell, a rotating shell, a fixed shell and a first controller, the first controller is fixedly connected to the inside of the connecting shell, the supporting shell is located on the outside of the connecting shell, the rotating shell is located on the outside of the cooling shell, and the fixed shell is fixedly connected to the inside of the rotating shell;

[0012] The fixed shell is located on the left side of the cooling shell, a second connector is fixedly arranged on the left side inside the fixed shell, the first connector and the second connector are rotatably connected, a lens connecting tube is fixedly arranged on the right side of the second connector, a mounting groove is opened on the right side of the fixed shell, and the right side of the lens connecting tube is fixedly connected to the left side of the mounting groove.

[0013] Furthermore, a driven bevel gear is fixedly provided on the outer side of the rotating shell, a rotating shaft is rotatably provided on the upper end of the connecting shell, a driving bevel gear is sleeved on the rotating shaft, the driving bevel gear and the driven bevel gear are meshed, a rotating motor is fixedly provided on the end of the rotating shaft away from the connecting shell, and the rotating motor is fixedly connected to the upper end of the supporting shell.

[0014] Furthermore, the objective lens assembly includes a first support frame, a second support frame and a third support frame, the first support frame is provided with a first objective lens on the left side, the second support frame is provided with a second objective lens on the left side, and the third objective lens is provided with a third objective lens on the left side of the third support frame.

[0015] Furthermore, a connecting bracket is fixedly provided at the bottom of each of the first supporting frame, the second supporting frame and the third supporting frame.

[0016] Further, the lens changing assembly comprises a lens changing housing, a rotating disk, an angle gear and a rotating gear, a lens changing hole is opened on the left side of the lens changing housing, a sensor is fixedly arranged on the left side inside the lens changing housing, a second controller is fixedly arranged on the right side inside the lens changing housing, and one end of the three connecting brackets is evenly fixedly connected to the rotating disk;

[0017] The rotating disk and the rotating gear are fixedly connected via an adjusting shaft, the angle gear and the rotating gear are meshed, the angle gear is sleeved on a driving shaft, a driving motor is fixedly provided at one end of the driving shaft, and the driving motor is fixedly connected to the inner right side of the mirror changing housing via a motor fixing block.

[0018] Furthermore, a sliding track is fixedly provided on the front and rear sides of the interior of the lens changing housing respectively, a sliding block is slidably provided on each of the sliding tracks, a telescopic rod is fixedly provided on each of the sliding blocks, and a clamping member is fixedly provided on each of the telescopic rods.

[0019] Furthermore, the positions of the lens-changing hole and the fixed shell correspond to each other, and the sensor is located above the lens-changing hole.

[0020] The beneficial effects of the present invention are:

[0021] (1) By setting up the cooling assembly, the technical effect that can be achieved is that an air conveyor is fixedly arranged on one side of the air cooling interface close to the inside of the connecting shell, an image connecting pipe is fixedly arranged on the right side of the camera connector, the right side of the image connecting pipe is fixedly connected to the right end of the inside of the cooling shell, the air cooling pipe and the two water cooling pipes are both located inside the cooling shell, the air cooling pipe is a double helix structure, the air cooling pipe includes an upper spiral pipe and a lower spiral pipe, the image connecting pipe is located between the upper spiral pipe and the lower spiral pipe, the two water cooling pipes are respectively located at the middle position of the upper spiral pipe and the lower spiral pipe, and a first connector is fixedly arranged between the right side of the image connecting pipe and the cooling shell;

[0022] When the endoscope needs to be used, the air cooling interface, water inlet interface and water outlet interface are respectively connected to the corresponding instruments, the cooling component is placed in the part to be detected, and the cooling gas is moved to the two air cooling pipes through the gas transmitter. The cooling liquid enters the water cooling pipe through the water inlet interface and is then discharged through the water outlet interface to cool the endoscope. The cooling component can pass through the spiral water cooling pipe to make the cooling speed faster. The dual cooling of air cooling and water cooling makes the endoscope more resistant to high temperatures and increases the service life of the endoscope.

[0023] (2) By setting the rotating assembly, the technical effect that can be achieved is that a driven bevel gear is fixedly arranged on the outer side of the rotating shell, a rotating shaft is rotatably arranged on the upper end of the connecting shell, a driving bevel gear is sleeved on the rotating shaft, the driving bevel gear and the driven bevel gear are meshed, a rotating motor is fixedly arranged on the end of the rotating shaft away from the connecting shell, and the rotating motor is fixedly connected to the upper end of the supporting shell;

[0024] When the objective lens needs to be rotated, the first controller receives an external signal and starts the rotating motor. The rotating shaft drives the active bevel gear to rotate, the driven bevel gear drives the rotating shell to rotate, the fixed shell drives the second connector to rotate, and the first objective lens located in the mounting groove to rotate, thereby completing the rotation of the objective lens. The rotating assembly can automatically adjust the position of the required objective lens, and the objective lens angle can be rotated during use to achieve observation at various angles, thereby preventing burns caused by close contact of staff and making the angle of objective lens rotation more accurate.

[0025] (3) By providing a lens-changing assembly, the technical effect that can be achieved is that a lens-changing hole is opened on the left side of the lens-changing housing, a sensor is fixedly provided on the left side of the interior of the lens-changing housing, a second controller is fixedly provided on the right side of the interior of the lens-changing housing, one end of three connecting brackets is evenly fixedly connected to the rotating disk, the rotating disk and the rotating gear are fixedly connected through an adjusting shaft, the angle gear is meshed with the rotating gear, the angle gear is sleeved on the driving shaft, a driving motor is fixedly provided at one end of the driving shaft, and the driving motor is fixedly connected to the right side of the interior of the lens-changing housing through a motor fixing block;

[0026] When the objective lens needs to be replaced, one end of the rotating assembly is moved to the lens changing hole, and the sensor transmits a signal to the second controller after detection, the sliders on both sides move to the left, the telescopic rod extends, driving the clamping member to approach the inside and clamp the first objective lens, the slider moves to the right, driving the first objective lens to move into the first support frame, the telescopic rod is retracted, the driving motor is started, driving the angle gear to rotate, and the rotating gear drives the rotating disk to rotate, so that the required objective lens is rotated to the bottom, and the clamping member moves the required objective lens to the left and installs it in the installation slot to complete the replacement operation of the objective lens. The lens changing assembly can automatically replace the objective lens without waiting for the objective lens to cool down, thereby preventing the staff from being burned due to manual operation, saving time and effort, and automatically adjusting to the required objective lens. The objective lens does not need to be exposed to the outside, thereby increasing the service life of the objective lens.

[0027] (4) By setting the objective lens assembly, the technical effect that can be achieved is that the first objective lens is set on the left side of the first support frame, the second objective lens is set on the left side of the second support frame, and the third objective lens is set on the left side of the third support frame. A connecting bracket is fixedly set at the bottom of the first support frame, the second support frame and the third support frame;

[0028] The first objective lens is an objective lens with a rotation angle of 70° and a field of view angle of 45°, the second objective lens is an objective lens with a direct view and a field of view angle of 90°, and the third objective lens is an objective lens with a direct view and a field of view angle of 45°. The first objective lens, the second objective lens and the third objective lens can all be installed in the mounting groove. The objective lens assembly can provide more observation angles and field of view options, and is suitable for different environments and locations. There is no need to replace the entire endoscope, and it has a wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a front cross-sectional view of the dismantled lens changing assembly in the present invention;

[0032] Figure 3 A partial cross-sectional view of a cooling assembly and a rotating assembly in the present invention;

[0033] Figure 4 A partial cross-sectional view of a cooling assembly, a rotating assembly and a first objective lens in the present invention;

[0034] Figure 5 It is a left side view of the lens changing assembly and the objective lens assembly in the present invention;

[0035] Figure 6 It is a left sectional view of the lens changing assembly and the objective lens assembly in the present invention;

[0036] Figure 7 It is a front cross-sectional view of the lens changing assembly and the objective lens assembly in the present invention;

[0037] Figure 8 It is a left side view of the angle gear and the rotating gear in the present invention;

[0038] Fig. 9 is a front cross-sectional view of the first objective lens and the first supporting frame in the present invention;

[0039] Fig.10 A front cross-sectional view of the second objective lens and the second support frame in the present invention;

[0040] Fig.11 is a front cross-sectional view of the third objective lens and the third supporting frame in the present invention;

[0041] Description of main component symbols:

[0042] In the figure: 1, cooling assembly; 11, connecting shell; 12, camera connector; 13, image connecting pipe; 14, air delivery device; 15, air cooling interface; 16, water inlet interface; 17, water outlet interface; 18, air cooling pipeline; 19, water cooling pipeline; 110, cooling shell;

[0043] 2. Rotating assembly; 21. Driving bevel gear; 22. Support housing; 23. Rotating motor; 24. Rotating shaft; 25. Driven bevel gear; 26. Rotating housing; 27. Lens connecting tube; 28. Fixed housing; 29. ​​First controller;

[0044] 3. Mirror changing assembly; 31. Mirror changing housing; 32. Mirror changing hole; 33. Angle gear; 34. Sliding track; 35. Clamping member; 36. Second controller; 37. Telescopic rod; 38. Sliding block; 39. Rotating plate; 310. Sensor; 311. Adjusting shaft; 312. Driving shaft; 313. Driving motor; 314. Motor fixing block; 315. Rotating gear;

[0045] 4. Objective lens assembly; 41. First objective lens; 42. First support frame; 43. Second objective lens; 44. Second support frame; 45. Third objective lens; 46. Third support frame. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0047] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Reference Figures 1 to 11 , is a rotatable high-temperature endoscope disclosed in the present invention, comprising a cooling component 1, a rotating component 2, a lens changing component 3 and an objective lens component 4, the rotating component 2 is located on the outside of the cooling component 1, the lens changing component 3 is located on the right side of the rotating component 2, and the objective lens component 4 is located inside the lens changing component 3.

[0050] The cooling assembly 1 includes a connecting shell 11, a camera connector 12, a cooling shell 110, an air cooling pipe 18 and two water cooling pipes 19. The camera connector 12 is fixedly connected to the left end of the connecting shell 11, and the cooling shell 110 is fixedly connected to the right end of the connecting shell 11. The lower end of the connecting shell 11 is fixedly provided with an air cooling interface 15, a water inlet interface 16 and a water outlet interface 17. The air cooling interface 15 is located on the left side of the water inlet interface 16, and the water outlet interface 17 is located on the right side of the water inlet interface 16.

[0051] An air delivery device 14 is fixedly provided on one side of the air cooling interface 15 close to the interior of the connecting shell 11, an image connecting tube 13 is fixedly provided on the right side of the camera connector 12, the image connecting tube 13 is located in the middle position inside the cooling shell 110, the right side of the image connecting tube 13 is fixedly connected to the right end inside the cooling shell 110, and the air cooling pipe 18 and two water cooling pipes 19 are all located inside the cooling shell 110.

[0052] The air cooling pipe 18 has a double helix structure, and includes an upper spiral pipe and a lower spiral pipe. The image connecting pipe 13 is located between the upper spiral pipe and the lower spiral pipe. The two water cooling pipes 19 are respectively located in the middle of the upper spiral pipe and the lower spiral pipe. A first connector is fixedly arranged between the right side of the image connecting pipe 13 and the cooling shell 110.

[0053] The left ends of the two water-cooling pipes 19 are fixedly connected to the air conveyor 14 , the water inlet interface 16 is fixedly connected to the side of the connection shell 11 with an upper spiral pipe, and the water outlet interface 17 is fixedly connected to the side of the connection shell 11 with a lower spiral pipe.

[0054] The cooling component 1 can make the cooling speed faster through the spiral water cooling pipe 19. The dual cooling of air cooling and water cooling makes the endoscope more resistant to high temperatures and increases the service life of the endoscope.

[0055] The rotating assembly 2 includes a supporting shell 22, a rotating shell 26, a fixed shell 28 and a first controller 29. The first controller 29 is fixedly connected to the inside of the connecting shell 11. The supporting shell 22 is located on the outside of the connecting shell 11. The rotating shell 26 is located on the outside of the cooling shell 110. The fixed shell 28 is fixedly connected to the inside of the rotating shell 26.

[0056] The fixed shell 28 is located on the left side of the cooling shell 110, and a second connector is fixedly arranged on the left side inside the fixed shell 28. The first connector and the second connector are rotatably connected, and a lens connecting tube 27 is fixedly arranged on the right side of the second connector. An installation groove is opened on the right side of the fixed shell 28, and the right side of the lens connecting tube 27 is fixedly connected to the left side of the installation groove.

[0057] A driven bevel gear 25 is fixedly provided on the outer side of the rotating shell 26, and a rotating shaft 24 is rotatably provided on the upper end of the connecting shell 11. A driving bevel gear 21 is sleeved on the rotating shaft 24, and the driving bevel gear 21 and the driven bevel gear 25 are meshed. A rotating motor 23 is fixedly provided on the end of the rotating shaft 24 away from the connecting shell 11, and the rotating motor 23 is fixedly connected to the upper end of the supporting shell 22.

[0058] The rotating assembly 2 can automatically adjust the position of the required objective lens, and can rotate the objective lens angle when in use to achieve observation at various angles, thereby preventing burns caused by close contact of the staff and making the rotation angle of the objective lens more precise.

[0059] The objective lens assembly 4 includes a first support frame 42, a second support frame 44 and a third support frame 46. A first objective lens 41 is arranged on the left side of the first support frame 42, a second objective lens 43 is arranged on the left side of the second support frame 44, and a third objective lens 45 is arranged on the left side of the third support frame 46. A connecting bracket is fixedly arranged at the bottom of the first support frame 42, the second support frame 44 and the third support frame 46.

[0060] The first objective lens 41 is an objective lens with a rotation angle of 70° and a field of view angle of 45°, the second objective lens 43 is an objective lens with a direct view and a field of view angle of 90°, and the third objective lens 45 is an objective lens with a direct view and a field of view angle of 45°. The first objective lens 41, the second objective lens 43 and the third objective lens 45 can all be installed in the mounting groove.

[0061] The objective lens assembly 4 can provide more viewing angles and viewing fields, and is suitable for different environments and locations without having to replace the entire endoscope, and has wider applicability.

[0062] The lens changing assembly 3 includes a lens changing shell 31, a rotating disk 39, an angle gear 33 and a rotating gear 315. A lens changing hole 32 is opened on the left side of the lens changing shell 31. A sensor 310 is fixedly arranged on the left side of the interior of the lens changing shell 31. A second controller 36 is fixedly arranged on the right side of the interior of the lens changing shell 31. One ends of the three connecting brackets are evenly fixedly connected to the rotating disk 39.

[0063] The rotating disk 39 and the rotating gear 315 are fixedly connected via an adjusting shaft 311, the angle gear 33 and the rotating gear 315 are meshed, the angle gear 33 is sleeved on the driving shaft 312, and a driving motor 313 is fixedly provided at one end of the driving shaft 312. The driving motor 313 is fixedly connected to the inner right side of the mirror housing 31 through a motor fixing block 314.

[0064] A sliding track 34 is fixedly provided on the front and rear sides of the interior of the lens-changing housing 31, respectively. A slider 38 is slidably provided on each sliding track 34, a telescopic rod 37 is fixedly provided on each slider 38, and a clamping member 35 is fixedly provided on each telescopic rod 37. The positions of the lens-changing hole 32 and the fixed housing 28 correspond to each other. The sensor 310 is located above the lens-changing hole 32, and fixed motors are provided on the two telescopic rods 37 and the two sliders 38.

[0065] The lens changing assembly 3 can automatically change the objective lens without waiting for the objective lens to cool down, thus preventing the staff from getting burned due to manual operation, saving time and effort, and automatically adjusting to the required objective lens. The objective lens does not need to be exposed, thus increasing the service life of the objective lens.

[0066] The working principle and use process of the present invention are as follows: when the endoscope needs to be used, the air cooling interface 15, the water inlet interface 16 and the water outlet interface 17 are respectively connected to the corresponding instruments, the cooling assembly 1 is placed in the part to be detected, the cooling gas is moved to the two air cooling pipes 18 through the gas conveyor 14, the cooling liquid enters the water cooling pipe 19 through the water inlet interface 16, and then is discharged through the water outlet interface 17 to cool the endoscope;

[0067] When the objective lens needs to be rotated, the first controller 29 receives an external signal, starts the rotating motor 23, the rotating shaft 24 drives the active bevel gear 21 to rotate, the driven bevel gear 25 drives the rotating housing 26 to rotate, the fixed housing 28 drives the second connector to rotate, and drives the first objective lens 41 located in the mounting groove to rotate, thereby completing the rotation of the objective lens;

[0068] When the objective lens needs to be replaced, one end of the rotating component 2 is moved into the lens changing hole 32, and the sensor 310 transmits a signal to the second controller 36 after detection, and the sliders 38 on both sides move to the left, and the telescopic rod 37 extends, driving the clamping member 35 to approach the inside and clamp the first objective lens 41, and the slider 38 moves to the right, driving the first objective lens 41 to move into the first support frame 42, and the telescopic rod 37 is retracted, and the driving motor 313 is started, driving the angle gear 33 to rotate, and the rotating gear 315 drives the rotating disk 39 to rotate, so that the required objective lens is rotated to the bottom, and the clamping member 35 moves the required objective lens to the left and installs it in the installation slot, completing the objective lens replacement operation.

[0069] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A rotatable high temperature endoscope, characterized in that: The invention comprises a cooling assembly (1), a rotating assembly (2), a lens changing assembly (3) and an objective lens assembly (4), wherein the rotating assembly (2) is located outside the cooling assembly (1), the lens changing assembly (3) is located on the right side of the rotating assembly (2), and the objective lens assembly (4) is located inside the lens changing assembly (3); The cooling assembly (1) comprises a connecting shell (11), a camera connector (12), a cooling shell (110), an air cooling pipe (18) and two water cooling pipes (19); the camera connector (12) is fixedly connected to the left end of the connecting shell (11); the cooling shell (110) is fixedly connected to the right end of the connecting shell (11); an air cooling interface (15), a water inlet interface (16) and a water outlet interface (17) are fixedly provided at the lower end of the connecting shell (11); the air cooling interface (15) is located on the left side of the water inlet interface (16); and the water outlet interface (17) is located on the right side of the water inlet interface (16); An air delivery device (14) is fixedly arranged on one side of the air cooling interface (15) close to the inside of the connection shell (11); an image connection tube (13) is fixedly arranged on the right side of the camera connector (12); the image connection tube (13) is located in the middle position inside the cooling shell (110); the right side of the image connection tube (13) is fixedly connected to the right end inside the cooling shell (110); the air cooling pipe (18) and the two water cooling pipes (19) are all located inside the cooling shell (110); The air cooling pipe (18) has a double helical structure, and comprises an upper helical pipe and a lower helical pipe. The image connecting pipe (13) is located between the upper helical pipe and the lower helical pipe. The two water cooling pipes (19) are respectively located at the middle of the upper helical pipe and the lower helical pipe. A first connector is fixedly arranged between the right side of the image connecting pipe (13) and the cooling housing (110). The left ends of the two water-cooling pipes (19) are fixedly connected to the gas conveyor (14); the side of the water inlet interface (16) close to the inside of the connecting shell (11) is fixedly connected to the upper spiral pipe; and the side of the water outlet interface (17) close to the inside of the connecting shell (11) is fixedly connected to the lower spiral pipe; The objective lens assembly (4) comprises a first support frame (42), a second support frame (44) and a third support frame (46); a first objective lens (41) is arranged on the left side of the first support frame (42), a second objective lens (43) is arranged on the left side of the second support frame (44), and a third objective lens (45) is arranged on the left side of the third support frame (46); A connecting bracket is fixedly provided at the bottom of each of the first supporting frame (42), the second supporting frame (44) and the third supporting frame (46); The mirror changing assembly (3) comprises a mirror changing housing (31), a rotating disk (39), an angle gear (33) and a rotating gear (315); a mirror changing hole (32) is provided on the left side of the mirror changing housing (31); a sensor (310) is fixedly arranged on the left side inside the mirror changing housing (31); a second controller (36) is fixedly arranged on the right side inside the mirror changing housing (31); and one end of the three connecting brackets is evenly fixedly connected to the rotating disk (39); The rotating disk (39) and the rotating gear (315) are fixedly connected via an adjusting shaft (311); the angle gear (33) and the rotating gear (315) are meshed; the angle gear (33) is sleeved on a driving shaft (312); a driving motor (313) is fixedly arranged at one end of the driving shaft (312); and the driving motor (313) is fixedly connected to the right side of the interior of the mirror changing housing (31) via a motor fixing block (314); A sliding track (34) is fixedly arranged on the front and rear sides of the interior of the lens changing housing (31), a sliding block (38) is slidably arranged on each of the sliding tracks (34), a telescopic rod (37) is fixedly arranged on each of the sliding blocks (38), and a clamping member (35) is fixedly arranged on each of the telescopic rods (37); The positions of the lens changing hole (32) and the fixed housing (28) correspond to each other, and the sensor (310) is located above the lens changing hole (32).

2. A rotatable high temperature endoscope according to claim 1, characterized in that: The rotating assembly (2) comprises a supporting shell (22), a rotating shell (26), a fixed shell (28) and a first controller (29), wherein the first controller (29) is fixedly connected to the inside of the connecting shell (11), the supporting shell (22) is located on the outside of the connecting shell (11), the rotating shell (26) is located on the outside of the cooling shell (110), and the fixed shell (28) is fixedly connected to the inside of the rotating shell (26); The fixed shell (28) is located on the left side of the cooling shell (110), a second connector is fixedly arranged on the left side inside the fixed shell (28), the first connector and the second connector are rotatably connected, a lens connecting tube (27) is fixedly arranged on the right side of the second connector, a mounting groove is opened on the right side of the fixed shell (28), and the right side of the lens connecting tube (27) is fixedly connected to the left side of the mounting groove.

3. A rotatable high temperature endoscope according to claim 2, characterized in that: A driven bevel gear (25) is fixedly arranged on the outer side of the rotating housing (26); a rotating shaft (24) is rotatably arranged on the upper end of the connecting housing (11); a driving bevel gear (21) is sleeved on the rotating shaft (24); the driving bevel gear (21) and the driven bevel gear (25) are meshed; a rotating motor (23) is fixedly arranged on one end of the rotating shaft (24) away from the connecting housing (11); and the rotating motor (23) is fixedly connected to the upper end of the supporting housing (22).

Images