A probe guide device

Abstract

The application discloses a kind of probe guiding device, belong to detection auxiliary device technical field, comprising: guiding mechanism, bending mechanism and fixed mechanism.Guiding mechanism one side is connected with waveguide probe, and guiding mechanism includes guiding piece, illuminating lamp and camera;Bending mechanism includes bellows;Fixed mechanism includes connecting seat, driving piece, two installation shells and two support pieces, two installation shells are symmetrically arranged on the two sides of driving piece, two driving ends of driving piece are connected with two installation shells respectively, for driving two installation shells to be close to each other or away from each other, each support piece includes mounting plate, two rollers and air bag, mounting plate is connected to installation shell one by one, two rollers and air bag are arranged on the outside of mounting plate side by side;The application can avoid waveguide probe in pipe wall friction when inserting pipeline, also can improve the stability of waveguide probe when entering the measured pipeline, realizes the stable fixation of waveguide probe in heat transfer pipe and carries out detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection auxiliary devices, and in particular to a probe guiding device. BACKGROUND

[0002] From the first generation of nuclear power plants to the current AP1000 nuclear power units, the steam generator heat transfer pipes are straight pipes or U-shaped pipes, although the heat transfer efficiency thereof is not optimal relative to serpentine pipes, spiral pipes and the like, but the detection methods thereof in equipment maintenance are various, including endoscope eddy current detection, atomic tracking detection, eddy current detection, acoustic emission and the like. The eddy current detection technology is first adopted abroad and is used for internal detection of the endoscope for the detection of the steam generator heat transfer pipes, and is popularized and becomes the main detection means of the steam generator heat transfer pipes of the current nuclear power plants. The Southwest Research Institute (SwRI) studies the MsS long-distance guided wave detection technology, a direct current power supply is externally applied to the probe, a direct current channel is formed between the excitation coil inside the probe and the pipe to be detected, the change of the current is controlled to generate a magnetic field in the pipe, then another set of coils is used to excite guided waves in the pipe, the guided waves propagate in the pipe wall in the direction of the pipe, when the guided waves encounter defects causing cross-section changes, the guided waves are reflected back to be received by the probe, and are displayed on the host computer after processing.

[0003] The publication No. CN202886291U provides a seamless steel pipe endoscope detection device, by fixing the shooting probe on the sliding support, moving the shooting probe on the position of the inner surface of the steel pipe, the state of the inner surface of the steel pipe can be clearly seen through the display screen; however, in the detection process, there is a certain gap between the probe and the pipe to be detected, which causes the position of the probe in the pipe to be detected to be unstable, thereby affecting the detection effect of the probe, and the probe is easy to rub against the inner wall of the pipe when entering the pipe, which affects the service life of the probe, and also causes mechanical scratches on the heat transfer pipe. SUMMARY

[0004] The purpose of the present application is to overcome the above technical deficiencies, and to provide a probe guiding device, which solves the technical problems that the probe of the detection device is unstable during detection and is easy to rub against the inner wall of the pipe.

[0005] In order to achieve the above technical purposes, the technical scheme of the present application provides a probe guiding device, which comprises:

[0006] A guiding mechanism is connected with a guided wave probe on one side, and the guiding mechanism comprises a guiding piece, a lighting lamp and a camera, the guiding piece is covered on one end of the guided wave probe, and the outer surface of the guiding piece forms a guiding surface with a diameter larger than that of the guided wave probe, and the lighting lamp and the camera are connected with the end of the guiding piece away from the guided wave probe;

[0007] A bending mechanism comprises a bellows, one end of which is connected to the guided wave probe;

[0008] A fixing mechanism comprises a connecting seat, a driving member, two mounting shells and two supporting members, one end of the connecting seat is connected to the other end of the bellows, the other end of the connecting seat is rotatably connected to the driving member, two mounting shells are symmetrically arranged on the two sides of the driving member, two driving ends of the driving member are respectively connected to two mounting shells for driving the two mounting shells to move closer to or farther away from each other, and each supporting member comprises a mounting plate, two rollers and an air bag, the mounting plate is connected to the mounting shell one by one, and the two rollers and the air bag are arranged side by side on the outer side of the mounting plate.

[0009] As a further improvement of the application, the guide member comprises a protective shell connected to the guided wave probe and a plurality of ball bearings uniformly arranged along the outer peripheral surface of the protective shell.

[0010] As a further improvement of the application, the illumination lamp is arranged in a ring shape on the outer side of the camera, and the guide member further comprises a protective cover covering the illumination lamp and the camera, and the protective cover is connected to the protective shell.

[0011] As a further improvement of the application, the driving member comprises a connecting shaft rotatably connected to the connecting seat, two sets of telescopic groups symmetrically arranged on the connecting shaft, and two sets of bevel gear groups, one end of each telescopic group is one by one connected to two mounting shells, each telescopic group comprises two sleeves and two threaded rods, a sleeve ring is rotatably connected to the connecting shaft at a position corresponding to the sleeve, one end of each sleeve is rotatably connected to the sleeve ring, and the other end of each sleeve is sleeved on the threaded rod and threadedly connected to the threaded rod, and the two sets of bevel gear groups comprise three bevel gears meshing with each other, one of the bevel gears is connected to the connecting shaft, and the other two bevel gears are sleeved on the sleeves.

[0012] As a further improvement of the application, the driving member further comprises a connecting ring connected to the connecting shaft, a handle is arranged on the side wall of the connecting ring, a ring-shaped groove is formed on one side of the connecting ring close to the mounting shell, a limiting block is arranged on each mounting shell at a position corresponding to the ring-shaped groove, and the limiting block is arranged in the ring-shaped groove.

[0013] As a further improvement of the application, the fixing mechanism further comprises a connecting block connected to the mounting shell, and two sliding grooves are respectively arranged on one end of the connecting block close to the mounting shell, and a sliding block slidably connected to the sliding groove is arranged on the mounting shell at a position corresponding to the sliding groove.

[0014] As a further improvement of the present application, the bending mechanism further comprises two first springs, the two first springs are arranged in parallel in the bellows, and one end of each of the first springs is connected with the guide, and the other end is connected with the connecting seat.

[0015] As a further improvement of the present application, each support further comprises two second springs and an extension rod, one end of each of the two second springs and the extension rod is connected with the mounting shell, and the other end is connected with the mounting plate, and the extension rod is arranged between the two second springs.

[0016] As a further improvement of the present application, the air bag is arranged between the two rollers, the fixing mechanism is connected with an inner probe sleeve away from the bending mechanism, the air bag and the mounting plate are designed in an arc shape, and the input end of the air bag passes through the fixing mechanism and the inner probe sleeve and is connected with an external air pump.

[0017] As a further improvement of the present application, the outer surface of the roller is designed in an arc shape outwardly.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The fixing mechanism is arranged, the distance between the two supports can be adjusted according to the pipe diameter of the heat transfer pipe by using the driving member, so that the two supports can be respectively abutted on the inner wall of the heat transfer pipe, the stability of the waveguide probe in the pipeline is improved, the detection position of the waveguide probe is easily found, the rollers are arranged, which is beneficial to the stable sliding of the device in the heat transfer pipe, the waveguide probe can be completely inserted into the heat transfer pipe, and the air bag can be filled between the pipeline and the support after inflation, so as to increase the damping force of the device and the pipeline, avoid displacement of the device, and enable the waveguide probe to be stably fixed in the heat transfer pipe and detected;

[0020] The bending mechanism is arranged, the bellows is connected between the waveguide probe and the fixing mechanism, the device can be bent to a certain extent, can be applied to a part of the curved heat transfer pipe, and the applicability is more extensive.

[0021] The guide mechanism is arranged, the guide surface of the guide mechanism can guide the insertion path of the waveguide probe, the waveguide probe is supported by the support, the waveguide probe is prevented from being rubbed on the inner wall of the pipeline during insertion into the pipeline, the loss of the waveguide probe is reduced, and mechanical scratches on the heat transfer pipe are also avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall front view structure of the present application;

[0023] Figure 2 is a schematic diagram of the overall front view structure of the present application;

[0024] Figure 3 is a schematic diagram of a front view of the telescopic part installation structure of the present application;

[0025] Figure 4 is a schematic diagram of a right view of the support part installation structure of the present application;

[0026] Figure 5 is a schematic diagram of a left view of the lighting lamp installation structure of the present application.

[0027] In the figure: 1, guiding mechanism; 11, guiding part; 111, protective shell; 112, ball; 113, protective cover; 12, lighting lamp; 13, camera; 14, waveguide probe; 2, bending mechanism; 21, bellows; 22, first spring; 3, fixing mechanism; 31, connecting seat; 32, driving part; 321, connecting shaft; 3211, collar; 322, conical gear set; 323, telescopic group; 3231, sleeve; 3232, threaded rod; 324, connecting ring; 3241, handle; 3242, annular groove; 33, installation shell; 331, limiting block; 332, sliding block; 34, support part; 341, installation plate; 342, roller; 343, air bag; 344, second spring; 345, telescopic rod; 35, connecting block; 351, sliding groove; 36, inner probe sleeve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0029] As shown in Figure 1 , the present application provides a probe guiding device, which comprises a guiding mechanism 1, a bending mechanism 2 and a fixing mechanism 3.

[0030] One side of the guiding mechanism 1 is connected with a waveguide probe 14, and the guiding mechanism 1 comprises a guiding part 11, a lighting lamp 12 and a camera 13. The guiding part 11 is covered on one end of the waveguide probe 14, and the outer surface of the guiding part 11 forms a guiding surface with a diameter larger than that of the waveguide probe 14. The lighting lamp 12 and the camera 13 are connected with the end of the guiding part 11 away from the waveguide probe 14.

[0031] The bending mechanism 2 comprises a bellows 21, and one end of the bellows 21 is connected with the waveguide probe 14.

[0032] The fixing mechanism 3 comprises a connecting seat 31, a driving piece 32, two mounting shells 33 and two supporting pieces 34, one end of the connecting seat 31 is connected with the other end of the bellows 21, the other end of the connecting seat 31 is rotationally connected with the driving piece 32, the two mounting shells 33 are symmetrically arranged on the two sides of the driving piece 32, the two driving ends of the driving piece 32 are connected with the two mounting shells 33 respectively, and the two mounting shells 33 are driven to move close to or away from each other, and each supporting piece 34 comprises a mounting plate 341, two rollers 342 and an air bag 343, the mounting plate 341 is connected with the mounting shell 33 one by one, and the two rollers 342 and the air bag 343 are arranged side by side on the outer side of the mounting plate 341.

[0033] In the device, the lighting lamp 12 and the camera 13 are connected with the end of the guide piece 11 away from the waveguide probe 14, so that the device is provided with the camera 13 and the lighting lamp 12 at the waveguide probe 14, the camera 13 is used for shooting the inside of the pipeline, and the lighting lamp 12 can illuminate the shooting position, so as to observe the entering and leaving of the waveguide probe 14 in the heat transfer pipe; the bellows 21 is connected with the waveguide probe 14 at one end, and the connecting seat 31 is connected with the other end of the bellows 21, so that the bellows 21 is used for connecting the waveguide probe 14 and the fixing mechanism 3, the device can produce a certain bending, and can be applied to the partially curved heat transfer pipe; the connecting seat 31, the driving piece 32, the two mounting shells 33 and the two supporting pieces 34 are arranged, the two driving ends of the driving piece 32 are connected with the two mounting shells 33 respectively, and the two mounting shells 33 are driven to move close to or away from each other, so that according to the gap between the heat transfer pipe and the probe, the two mounting shells 33 can be driven to move close to or away from each other by the driving piece 32, so that the two supporting pieces 34 can be respectively abutted on the inner wall of the heat transfer pipe, so as to improve the stability of the waveguide probe 14 in the pipeline, the rollers 342 arranged on the outer side of the mounting plate 341 are beneficial to the stable sliding of the device in the heat transfer pipe, the waveguide probe 14 can be completely inserted into the heat transfer pipe, the air bag 343 arranged on the outer side of the mounting plate 341 can be filled between the pipeline and the supporting piece 34 after being inflated, so as to increase the damping force of the device and the pipeline, avoid displacement of the device during detection, and stably fix the waveguide probe 14 in the heat transfer pipe and detect; the guide piece 11 is arranged in front of the waveguide probe 14 during use, the outer surface of the guide piece 11 forms a guide surface with a diameter larger than that of the waveguide probe 14, and the guide surface can guide the insertion path of the waveguide probe 14 in cooperation with the supporting piece 34, and the waveguide probe 14 can be supported by the guide surface and the supporting piece 34, so as to avoid friction of the waveguide probe 14 on the inner wall of the pipeline during insertion, and reduce the loss of the waveguide probe 14.

[0034] As Figure 1As shown, the fixing mechanism 3 further comprises a connecting block 35 connected with the mounting shell 33, and two sliding grooves 351 are arranged at the end of the connecting block 35 close to the mounting shell 33, and a sliding block 332 in sliding connection with the sliding groove 351 is arranged at the position of the mounting shell 33 corresponding to the sliding groove 351, so that when the two mounting shells 33 move relative to each other, the sliding block 332 connected with the mounting shell 33 slides on the sliding groove 351, and the sliding groove 351 can limit the distance between the two mounting shells 33 and the movement path of the mounting shell 33.

[0035] The bending mechanism 2 further comprises two first springs 22 arranged in the corrugated pipe 21 in parallel, and one end of each first spring 22 is connected with the guide piece 11 and the other end is connected with the connecting seat 31, so that under the action of the first spring 22, the corrugated pipe 21 can be automatically reset after being taken out of the measured pipeline, which is convenient for its next use.

[0036] Each support piece 34 further comprises two second springs 344 and an extension rod 345, and one end of each of the two second springs 344 and the extension rod 345 is connected with the mounting shell 33 and the other end is connected with the mounting plate 341, and the extension rod 345 is arranged between the two second springs 344, so that when the support piece 34 is arranged in the measured pipeline, the second spring 344 can generate an elastic force to press the roller 342 against the pipeline, which further improves the stability of the guide wave probe 14.

[0037] As shown in the figure, Figure 2 The guide piece 11 comprises a protective shell 111 and a plurality of balls 112, the protective shell 111 is connected with the guide wave probe 14, and the plurality of balls 112 are arranged uniformly along the outer circumferential surface of the protective shell 111, so that the protective shell 111 has a protective effect on the guide wave probe 14, and the balls 112 can reduce the friction between the guide piece 11 and the inner wall of the heat transfer pipe, which is convenient for moving in the pipeline.

[0038] As shown in the figure, Figure 1 , Figure 3As shown, the driving member 32 comprises a connecting shaft 321, two sets of telescopic groups 323 and two sets of bevel gear groups 322, the connecting shaft 321 is rotationally connected to the connecting seat 31, the two sets of telescopic groups 323 are symmetrically arranged on the connecting shaft 321, and one end of each of the two sets of telescopic groups 323 is connected to the two mounting shells 33 one by one, each telescopic group 323 comprises two sleeves 3231 and two threaded rods 3232, a collar 3211 is rotationally connected to the connecting shaft 321 at a position corresponding to the sleeve 3231, one end of each sleeve 3231 is rotationally connected to the collar 3211, and the other end of each sleeve 3231 is sleeved on the threaded rod 3232 and threadedly connected with the threaded rod 3232, the two sets of bevel gear groups 322 comprise three meshing bevel gears, one of which is connected to the connecting shaft 321, and the other two are sleeved on the sleeves 3231, by arranging the connecting shaft 321, the two sets of telescopic groups 323 and the two sets of bevel gear groups 322, rotating the connecting shaft 321 can drive the two bevel gears connected thereto to rotate, thereby driving the other bevel gears to rotate to drive each sleeve 3231 to rotate, and when the sleeve 3231 rotates, the threaded rod 3232 threadedly connected therewith can be rotated out of or into the sleeve 3231, thereby realizing driving the two mounting shells 33 to move closer to or farther away from each other, specifically, since the collar 3211 is rotationally connected to the connecting shaft 321 and the collar 3211 is sleeved on the connecting shaft 321, when the connecting shaft 321 rotates, the collar 3211 and the sleeve 3231 do not rotate.

[0039] As shown in Figure 3 , the driving member 32 further comprises a connecting ring 324, the connecting ring 324 is connected to the connecting shaft 321, the side wall of the connecting ring 324 is provided with a handle 3241, and the side of the connecting ring 324 close to the mounting shell 33 is provided with an annular groove 3242, the mounting shell 33 is provided with a limiting block 331 at a position corresponding to the annular groove 3242, the limiting block 331 is built-in the annular groove 3242, by connecting the connecting ring 324 with the connecting shaft 321, the side wall of the connecting ring 324 is provided with a handle 3241, the handle 3241 can be used to rotate the connecting ring 324, since the connecting ring 324 is connected to the connecting shaft 321, the connecting shaft 321 can be driven to rotate, thereby adjusting the distance between the two supporting members 34, by arranging the annular groove 3242 and the limiting block 331, the one end of the mounting shell 33 is limited through the annular groove 3242, thereby improving the stability of the mounting shell 33.

[0040] As shown in Figure 1 , Figure 4As shown, the air bag 343 is between the two rollers 342, the fixing mechanism 3 is connected with the inner probe sleeve 36 away from one end of the bending mechanism 2, the air bag 343 and the mounting plate 341 are arc-shaped design, the input end of the air bag 343 passes through the fixing mechanism 3 and the inner probe sleeve 36 and is connected with the external air pump, by placing the air bag 343 between the two rollers 342, the air pump can be used to inflate the air bag 343, the air bag 343 is attached to the pipeline after inflation, which can limit the rolling of the roller 342, so as to realize the stable fixation of the waveguide probe 14 inside the heat transfer pipe. By arc-shaped design of the air bag 343 and the mounting plate 341, the contact area of the air bag 343 and the pipeline can be increased, so as to improve the fixing effect of the air bag 343 on the device.

[0041] As shown in Figure 4 , the outer surface of the roller 342 is outwardly protruding and arc-shaped design, by outwardly protruding and arc-shaped design of the outer surface of the roller 342, the outer surface of the roller 342 can be attached to the inner wall of the pipeline when the roller 342 rolls in the pipeline, so that the waveguide probe 14 is more stable when entering the pipeline.

[0042] As shown in Figure 1 , Figure 5 , the illumination lamp 12 is arranged outside the camera 13 in a ring shape, the guide 11 further comprises a protective cover 113, the protective cover 113 covers the illumination lamp 12 and the camera 13, and the protective cover 113 is connected with the protective shell 111, by arranging the illumination lamp 12 outside the camera 13 in a ring shape, the shooting effect of the camera 13 is improved, by setting the protective cover 113, the camera 13 and the illumination lamp 12 are protected, so as to avoid damage of the camera 13 and the illumination lamp 12 due to abrasion; and in the embodiment, the protective cover 113 is clamped on the protective shell 111 and is transparent, which is convenient for dismounting the protective cover 113 for maintenance of the camera 13 and the illumination lamp 12, and the setting of the protective cover 113 will not affect the shooting of the camera 13.

[0043] Working principle: before using the device, first of all, according to the pipe diameter of the measured heat pipe, the distance between the two supporting pieces 34 is adjusted, the handle 3241 is rotated, the connecting ring 324 is driven to rotate, the connecting shaft 321 is driven to rotate, in turn, the two bevel gears connected with it are rotated, and then the other bevel gears are rotated, so as to drive each sleeve 3231 to rotate, when the sleeve 3231 rotates, the threaded rod 3232 connected with it by screw thread can be driven to rotate out or into the sleeve 3231, so as to adjust the distance between the two supporting pieces 34, after adjustment, the device is inserted into the pipeline, when the device enters the pipeline, the roller 342 can roll on the inner wall of the pipeline, the second spring 344 on the supporting piece 34 generates the elastic force of pressing the roller 342 to the pipeline, so that the device is more stable when entering the pipeline, after the waveguide probe 14 moves to the detection position, the air pump can be used to inflate the air bag 343, the air bag 343 is filled between the mounting plate 341 and the pipeline, so that the waveguide probe 14 can be stably fixed in the heat pipe and detected.

[0044] The fixing mechanism 3 is arranged, the distance between the two supporting pieces 34 can be adjusted by using the driving piece 32 according to the pipe diameter of the heat pipe, so that the two supporting pieces 34 can be pressed to the inner wall of the heat pipe respectively, the stability of the waveguide probe 14 in the pipeline is improved, and the detection position of the waveguide probe 14 is easily found, the roller 342 is arranged, which is favorable for the stable sliding of the device in the heat pipe, the waveguide probe 14 is easily inserted into the heat pipe, the air bag 343 is arranged, which can be filled between the pipeline and the supporting piece 34 after inflation, so as to increase the damping force of the device and the pipeline, avoid displacement of the device, and stably fix the waveguide probe 14 in the heat pipe for detection.

[0045] The bending mechanism 2 is arranged, the bellows 21 are connected to the waveguide probe 14 and the fixing mechanism 3, the device can be bent to a certain extent, and can be applied to part of the curved heat pipe, and the applicability is more extensive.

[0046] The guiding mechanism 1 is arranged, the guiding surface of the guiding mechanism 1 can guide the insertion path of the waveguide probe 14, the guiding mechanism 1 and the supporting piece 34 cooperate to support the waveguide probe 14, the waveguide probe 14 is prevented from rubbing against the inner wall of the pipeline when being inserted into the pipeline, the loss of the waveguide probe 14 is reduced, and the heat pipe is also prevented from being mechanically scratched.

[0047] The specific embodiments of the application described above do not constitute a limitation on the protection scope of the application. Any various other corresponding changes and modifications made according to the technical concept of the application should be included in the protection scope of the claims of the application.

Claims

1. A probe guide device, characterized in that, The utility model relates to a kind of flexible waveguide probe, including: Guiding mechanism, one side of the guiding mechanism is connected with waveguide probe, and the guiding mechanism includes guide, illuminating lamp and camera, the guide cover is set to one end of the waveguide probe, and the outer surface of the guide forms a guide surface with the diameter greater than the diameter of the waveguide probe, the illuminating lamp and camera are connected with the end of the guide away from waveguide probe; Bending mechanism, the bending mechanism includes bellows, one end of the bellows is connected with the waveguide probe; Fixing mechanism, the fixing mechanism includes connecting seat, driving piece, two installation shells and two support pieces, one end of the connecting seat is connected with the other end of the bellows, the other end is rotatably connected with the driving piece, two installation shells are symmetrically arranged on the two sides of the driving piece, two driving ends of the driving piece are connected with two installation shells respectively, for driving two installation shells to be close to each other or away from each other, each support piece includes mounting plate, two rollers and air bag, the mounting plate is connected to the installation shell one by one, two rollers and the air bag are arranged side by side on the outside of the mounting plate;The air bag is between the two rollers, the end of the fixing mechanism away from the bending mechanism is connected with the inner exploration sleeve, the air bag and the mounting plate are arc-shaped design, the input end of the air bag passes through the fixing mechanism and the inner exploration sleeve and is connected with external air pump; The guide includes protective shell and a plurality of balls, the protective shell is connected with the waveguide probe, a plurality of balls are evenly arranged along the outer circumferential surface of the protective shell; The driving piece includes connecting shaft, two groups of telescopic groups and two groups of bevel gear sets, the connecting shaft is rotatably connected to the connecting seat, two groups of telescopic groups are symmetrically arranged on the connecting shaft, and one end of two groups of telescopic groups is connected with two installation shells one by one respectively, each telescopic group includes two sleeves and two threaded rods, a sleeve ring is rotatably connected to the connecting shaft at a position corresponding to the sleeve, one end of each sleeve is rotatably connected to the sleeve ring, the other end is sleeved on the threaded rod and is threadedly connected with the threaded rod, two groups of bevel gear sets include three meshing bevel gears, and one of the bevel gears is connected to the connecting shaft, and the other two bevel gears are sleeved on the sleeves.

2. A probe guide according to claim 1, wherein, The illuminating lamp is arranged outside the camera in a ring shape, and the guide further includes a protective cover, the protective cover covers the illuminating lamp and camera, and the protective cover is connected with the protective shell.

3. A probe guide according to claim 1, wherein, The driving piece further includes a connecting ring, the connecting ring is connected with the connecting shaft, a handle is provided on the side wall of the connecting ring, a ring-shaped groove is formed on one side of the connecting ring close to the installation shell, a limiting block is provided on each installation shell at a position corresponding to the ring-shaped groove, and the limiting block is arranged in the ring-shaped groove.

4. A probe guide according to claim 1, wherein, The fixing mechanism further includes a connecting block, the connecting block is connected with the installation shell, and two sliding grooves are formed on one end of the connecting block close to the installation shell, and a sliding block is arranged on the installation shell at a position corresponding to the sliding groove and is slidably connected with the sliding groove.

5. A probe guide according to claim 1, wherein, The bending mechanism further comprises two first springs, which are arranged in the bellows in parallel and one end of each of the first springs is connected with the guide and the other end is connected with the connecting seat.

6. A probe guide according to claim 1, wherein, Each support further comprises two second springs and a telescopic rod, one end of each of the second springs and the telescopic rod is connected with the mounting shell and the other end is connected with the mounting plate, and the telescopic rod is arranged between the two second springs.

7. A probe guide according to claim 1, wherein, The outer surface of the roller is outwardly protruding and arc-shaped.

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