Highway-railway dual-purpose inspection vehicle
By designing a dual-purpose road-rail inspection vehicle with a support plate and wheel set structure, the problem of the single applicable scenario of inspection vehicles has been solved, and flexible switching between rail and road surfaces has been achieved, improving inspection efficiency and safety.
Patent Information
- Application Number
- CN202520093924.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing inspection vehicles are only applicable to a limited range of scenarios and cannot flexibly switch between tracks and roads, which affects inspection efficiency and timeliness.
Design a dual-purpose road-rail inspection vehicle, which adopts a support plate and wheel set structure. The wheel set has a cylindrical first contact surface and multiple sections of second contact surface. A storage box is set on the support plate. Combined with a limit rod, sliding plate and elastic element, it forms a braking component to realize flexible switching between the track and the road surface.
It enables convenient switching between the inspection vehicle and the road surface, improves inspection efficiency and safety, reduces operational difficulty and labor intensity, and ensures the smooth progress of inspection tasks.
Smart Images

Figure CN223574408U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of inspection equipment, specifically, relates to a highway-railway dual-purpose inspection vehicle. BACKGROUND
[0002] In today's infrastructure maintenance and inspection field, the inspection vehicle plays a crucial role. Whether it is a railway track system for monitoring the wear of the track, the tightness of the fastener and the running condition of the equipment along the line, or in the road surface environment such as highway, it is impossible to carry out inspection on road surface quality, traffic sign integrity and other aspects without professional inspection equipment.
[0003] The traditional inspection vehicle is mostly single in design, and most of the existing inspection vehicles are usually only for specific driving scenes, especially those vehicles focusing on track inspection. They use specially designed wheels, chassis structures and guide devices according to the characteristics of track operation to accurately fit the track and ensure stable operation on the track to collect various track-related data. However, this highly adaptive track design has significant limitations. On the one hand, when the inspection vehicle needs to be transferred to different track sections or initially deployed on the track, it lacks the ability to drive on regular road surfaces, making the transfer process cumbersome. Usually, it needs to be transferred with vehicles or tools, which consumes a lot of manpower, material resources and time cost, seriously affecting the improvement of inspection efficiency. On the other hand, in some special scenarios, such as the close connection between the track and the surrounding road surface facilities, the inspection vehicle needs to be able to switch between the two for convenient operation. The single-track driving inspection vehicle cannot meet this flexible operation demand, making it difficult to achieve comprehensive coverage of the entire transportation infrastructure comprehensive operation, restricting the timeliness and accuracy of the inspection work, and becoming a bottleneck problem that needs to be broken through in the current inspection technology field. SUMMARY
[0004] The utility model provides a highway-railway dual-purpose inspection vehicle, which solves the problem of single application scene of the current inspection vehicle in related technology.
[0005] The technical scheme of the utility model is as follows:
[0006] A highway-railway dual-purpose inspection vehicle comprises:
[0007] A support plate;
[0008] A wheel set is rotatably arranged relative to the support plate, and the wheel set has a first abutting surface and a second abutting surface. The first abutting surface is cylindrical and is used to support the inspection vehicle on the road surface. The second abutting surface comprises a horizontal section, a transition section and a limiting section. The transition section is connected to the horizontal section and the limiting section at both ends. The horizontal section is used to support the inspection vehicle on the track, and the limiting section is used to abut the side surface of the track.
[0009] a storage box, which is arranged on the support plate.
[0010] Optionally, further comprising:
[0011] a limiting rod, which is slidingly arranged on the support plate, and which is in abutment or out of abutment with the wheel set after sliding.
[0012] Optionally, further comprising:
[0013] a sliding plate, which is slidingly arranged relative to the support plate, and which has a guide inclined surface at one end close to the limiting rod, the guide inclined surface being used to abut against and push the limiting rod to slide after the sliding plate slides;
[0014] a first elastic member, which acts on the support plate and the limiting rod at two ends respectively, and which is used to provide a force for the limiting rod to move away from the wheel set.
[0015] Optionally, the limiting rod, the sliding plate and the first elastic member constitute a brake, and each wheel set is provided with one brake, and further comprising:
[0016] a slide rod, which is slidingly arranged on the support plate, and on which the sliding plate is arranged.
[0017] Optionally, further comprising:
[0018] a second elastic member, which acts on the slide rod and the support plate at two ends respectively, and which is used to provide a force for the guide inclined surface to move away from the limiting rod.
[0019] Optionally, further comprising:
[0020] a handrail, which is arranged on the support plate, and which has a holding portion at an upper end.
[0021] Optionally, further comprising:
[0022] a limiting push rod, which is arranged on the handrail, and which has a vertical surface and an inclined surface, the vertical surface being parallel to the handrail, and the inclined surface being communicated with the vertical surface and a side wall of the handrail at two ends, the slide rod being in abutment with the inclined surface and the vertical surface and sliding relative to the support plate after the abutment.
[0023] Optionally, further comprising:
[0024] a chuck, which is arranged at one end of each of the wheel set and the limiting rod close to each other, and which has a plurality of limiting grooves and limiting protrusions distributed at intervals, the limiting protrusion being slid into the opposite limiting groove after the limiting rod slides.
[0025] Optionally, the limiting groove and the limiting protrusion are both triangular in cross section, and the area of the triangle gradually decreases from the edge of the chuck to the center of the chuck.
[0026] Optionally, the first abutting surface is located on the side of the second abutting surface away from the track.
[0027] The working principle and beneficial effects of the utility model are as follows:
[0028] In the utility model, the support plate of the inspection vehicle is made of high-strength metal plate, has good rigidity and lightweight characteristics, and can stably bear other components of the inspection vehicle. The wheel set is rotatably connected with the support plate through a precision bearing, ensuring smooth rotation. For example, when the inspection vehicle needs to transition from the road surface to the railway track during the inspection operation on the section where the railway track is parallel to the surrounding road, the cylindrical first abutting surface of the wheel set can easily roll on the road surface, smoothly moving the inspection vehicle to the track. At this time, the wheel set is adjusted in angle, so that the horizontal section of the second abutting surface is attached to the upper surface of the track, and the limiting section is tightly abutted against the side surface of the track, realizing stable support and accurate positioning of the inspection vehicle on the track. The storage box stores various detection instruments, spare parts and other materials, facilitating the inspection work at any time.
[0029] This structure design enables the inspection vehicle to conveniently adapt to different driving scenes, and can freely switch between the road surface and the track without the aid of complex transfer equipment. On the one hand, the cylindrical first abutting surface provides stable support for driving on the road surface, ensuring that the inspection vehicle can be flexibly moved to the surrounding track. On the other hand, the carefully designed structure of the second abutting surface ensures the stability and accuracy of the inspection vehicle running on the track, preventing the risk of derailment. The storage box improves the convenience of carrying inspection materials and enhances the overall inspection efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0030] The above features, technical characteristics, advantages and implementation modes of the utility model will be further described in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.
[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0032] Figure 2 It is another angle schematic diagram of the overall structure of the utility model;
[0033] Figure 3 It is a schematic diagram of the local structure of the utility model;
[0034] Figure 4 It is another angle schematic diagram of the structure of the utility model;
[0035] Figure 5 For the utility model Figure 1 The enlarged structure schematic view of A in the middle.
[0036] In the figure: 11, support plate, 12, wheel group, 121, first abutting surface, 122, second abutting surface, 1, inspection vehicle, 1221, horizontal section, 1222, transition section, 1223, limiting section, 13, storage box, 21, limiting rod, 22, sliding plate, 222, guide inclined surface, 23, first elastic member, 2, brake piece, 3, sliding rod, 4, second elastic member, 5, handrail, 51, holding part, 6, limiting push rod, 61, vertical surface, 62, inclined surface, 7, chuck, 71, limiting groove, 72, limiting protrusion. DETAILED DESCRIPTION
[0037] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, specific implementation manners of the utility model will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor, and other embodiments can be obtained.
[0038] In order to make the drawing simple, only the part related to the utility model is shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0039] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0040] In addition, in the description of the present application, the terms "first", "second" and the like are only used for distinction and description, and cannot be understood as indicating or implying relative importance.
[0041] Reference Figures 1-5For the first embodiment of the utility model, a highway inspection vehicle is provided, which comprises a support plate 11; a wheel set 12 is rotatably arranged relative to the support plate 11, the wheel set 12 has a first abutting surface 121 and a second abutting surface 122, the first abutting surface 121 is cylindrical, and the first abutting surface 121 is used for supporting the inspection vehicle 1 on the road surface; the second abutting surface 122 comprises a horizontal section 1221, a transition section 1222 and a limiting section 1223, the transition section 1222 is connected to the horizontal section 1221 and the limiting section 1223 at both ends, the horizontal section 1221 is used for supporting the inspection vehicle 1 on the track, and the limiting section 1223 is used for abutting with the side surface of the track; a storage box 13 is arranged on the support plate 11.
[0042] In the embodiment, the support plate 11 of the inspection vehicle 1 is made of a high-strength metal plate, has good rigidity and lightweight characteristics, and can stably bear other components of the entire inspection vehicle 1. The wheel set 12 is rotatably connected to the support plate 11 through a precision bearing, ensuring smooth rotation. For example, when the inspection vehicle 1 needs to transition from the road surface to the railway track during the inspection operation on a road section where the railway track is parallel to the surrounding road, the cylindrical first abutting surface 121 of the wheel set 12 can easily roll on the road surface, smoothly moving the inspection vehicle 1 to the vicinity of the track. At this time, the angle of the wheel set 12 is adjusted, so that the horizontal section 1221 of the second abutting surface 122 is attached to the upper surface of the track, and the limiting section 1223 is tightly abutted against the side surface of the track, realizing stable support and accurate positioning of the inspection vehicle 1 on the track. The storage box 13 contains various detection instruments, spare parts and other materials, which are convenient for taking out at any time for inspection work.
[0043] This structure design enables the inspection vehicle 1 to conveniently adapt to different driving scenes, without the need for complex transfer equipment, and can freely switch between the road surface and the track. On the one hand, the cylindrical first abutting surface 121 provides stable support for driving on the road surface, ensuring that the inspection vehicle 1 can be flexibly moved to the vicinity of the track; on the other hand, the carefully designed structure of the second abutting surface 122 ensures the stability and accuracy of the inspection vehicle 1 running on the track, preventing the risk of derailment, and the setting of the storage box 13 improves the convenience of carrying inspection materials and improves the overall inspection efficiency.
[0044] Further, a limiting rod 21 is slidably arranged on the support plate 11, and the limiting rod 21 abuts or abuts with the wheel set 12 after sliding.
[0045] In this embodiment, the limiting rod 21 is slid along the preset slide on the support plate 11 to the wheel set 12. The limiting rod 21 is finally tightly abutted on the wheel set 12, and the rotation of the wheel set 12 is effectively limited by the friction force, thereby reducing the risk of wheel out of control of the inspection vehicle 1 due to accidental collision or bumping when driving on complex road surface. By increasing the limiting rod 21, reliable braking assistance is provided for the inspection vehicle 1 when switching on different road conditions. During the transition from the track to the road surface or driving on complex road surface, the safety hazard caused by excessive rotation of the wheel set 12 is effectively prevented, the safety of the inspection vehicle 1 and the operator is ensured, and the controllability of the inspection vehicle 1 is significantly improved, thereby ensuring the smooth progress of the inspection task.
[0046] Further, the sliding plate 22 is slidably arranged relative to the support plate 11, the sliding plate 22 has a guide slope 222 at one end close to the limiting rod 21, the guide slope 222 is used to abut and push the limiting rod 21 to slide after the sliding plate 22 slides, and the first elastic member 23 acts on the support plate 11 and the limiting rod 21 at both ends, respectively, for providing a force for the limiting rod 21 to move away from the wheel set 12.
[0047] In this embodiment, the sliding plate 22 is pushed to slide relative to the support plate 11. Since the sliding plate 22 has a guide slope 222 at one end close to the limiting rod 21, with the movement of the sliding plate 22, the guide slope 222 gradually contacts and applies a pushing force to the limiting rod 21, overcoming the elastic force of the first elastic member 23, and pushing the limiting rod 21 to slide to the wheel set 12, thereby realizing the braking of the wheel set 12. When the sliding plate 22 is released, the first elastic member 23 rebounds to drive the limiting rod 21 away from the wheel set 12, thereby releasing the brake and restoring the free rotation state of the wheel set 12. This design optimizes the convenience of braking operation, and the operator can easily realize the braking control of the wheel set 12 without complex operation. The cooperation of the guide slope 222 and the elastic member not only ensures the timeliness of braking, but also quickly restores the normal driving state when braking is not needed, thereby improving the working efficiency of the inspection vehicle 1 in the frequent switching of driving scenes, and reducing the operation difficulty and labor intensity.
[0048] Further, the limiting rod 21, the sliding plate 22 and the first elastic member 23 form a brake 2, each wheel set 12 is provided with one brake 2, and the slide rod 3 is slidably arranged on the support plate 11, and the sliding plate 22 is arranged on the slide rod 3.
[0049] In this embodiment, each wheel set 12 corresponds to a brake 2. The slide rod 3 smoothly slides along the guide rail on the support plate 11. When simultaneous braking of multiple wheel sets 12 is required, the operator pushes the slide rod 3, which synchronously moves the sliding plate 22 on it, and then through the action of the guide slope 222 and the limiting rod 21, the rapid braking of multiple wheel sets 12 is realized. For example, in the event of an emergency, the patrol vehicle 1 can be stopped stably in a short time. The linkage control of multiple brakes 2 by the slide rod 3 greatly improves the synchronicity and efficiency of the braking operation. In complex and variable patrol environments, especially in emergency situations, the patrol vehicle 1 can be quickly braked to avoid accidents such as collisions, ensuring the safety of patrol operations and improving the overall coordination of the operation.
[0050] Further, a second elastic member 4 is provided, which acts on the slide rod 3 and the support plate 11 at both ends, respectively, to provide a force that moves the guide slope 222 away from the limiting rod 21.
[0051] In this embodiment, when the operator releases the pushing force on the slide rod, the second elastic member exerts a spring force on the slide rod and the support plate at both ends, respectively, to push the slide rod to slide reversely, so that the guide slope quickly moves away from the limiting rod, ensuring that the limiting rod quickly resets under the action of the first elastic member, releasing the brake of the wheel set, and the patrol vehicle can smoothly drive on the road. The second elastic member provides automatic assistance for the reset of the slide rod, ensuring that the entire brake system can quickly and stably return to the initial state when the brake is released, reducing manual intervention, improving the smoothness of the patrol vehicle during different driving mode switching processes, saving operation time, and further improving patrol efficiency.
[0052] Further, a handrail 5 is provided on the support plate 11, and the handrail 5 has a holding portion 51 at the upper end.
[0053] In this embodiment, when the operator pushes the patrol vehicle 1 to move or controls its driving direction, the operator holds the holding portion 51 of the handrail 5 with both hands. The holding portion 51 is wrapped with rubber material and has anti-slip texture on the surface, providing a comfortable and stable holding feeling. For example, during the process of moving the patrol vehicle 1 from the road to the track, the operator uses the handrail 5 to exert force and accurately controls the position and attitude of the patrol vehicle 1, ensuring that the wheel set 12 is smoothly connected to the track.
[0054] The design of the handrail 5 and its holding portion 51 conforms to ergonomics, making it convenient for the operator to control the patrol vehicle 1 in various complex working conditions. When pushing the patrol vehicle 1, the operator can exert force more easily and accurately, reducing the feeling of fatigue, improving the accuracy of the operation, and ensuring smooth transition of the patrol vehicle 1 in different scenarios.
[0055] Further, the limiting push rod 6 is arranged on the handrail 5, and the limiting push rod 6 has a vertical surface 61 and an inclined surface 62, the vertical surface 61 is parallel to the handrail 5, and the inclined surface 62 is connected to the vertical surface 61 and the side wall of the handrail 5 at both ends, and the slide rod 3 slides relative to the support plate 11 after abutting against the inclined surface 62 and the vertical surface 61.
[0056] In the embodiment, the slide rod 3 is pushed to slide by the limiting push rod 6 on the handrail 5. When the inspection vehicle 1 is parked on the track, and the operator wants to start the brake 2 to ensure the safety of subsequent entry into the footpath, the limiting push rod 6 is simply pushed. The design of the inclined surface 62 of the limiting push rod 6 enables the slide rod 3 to slide smoothly along the guide of the inclined surface 62 when abutting against the inclined surface 62, thereby driving the slide plate 22 to push the limiting rod 21 to brake. When the slide rod 3 slides to abut against the vertical surface 61, a stable braking state is maintained.
[0057] The structure of the limiting push rod 6 provides convenient guidance for the operation of the slide rod 3, and the operator does not need to accurately align the operation part of the slide rod 3, but can achieve complex braking operation by simply pushing the limiting push rod 6. This design simplifies the operation process, greatly improves the operation efficiency, reduces the probability of misoperation, and ensures the efficiency and safety of the inspection operation. The operator only needs to slide the handrail 5 to achieve braking.
[0058] Further, the chuck 7 is arranged at one end of the wheel set 12 and the limiting rod 21 close to each other, and the chuck 7 has a plurality of limiting grooves 71 and limiting protrusions 72 which are spaced apart, and the limiting protrusion 72 slides into the opposite limiting groove 71 after the limiting rod 21 slides.
[0059] In the embodiment, the chuck 7 is arranged at one end of the wheel set 12 and the limiting rod 21 close to each other. When the limiting rod 21 slides to the braking position, the limiting protrusion 72 thereon accurately slides into the opposite limiting groove 71 of the chuck 7 of the wheel set 12, forming a tight mechanical locking. For example, when the inspection vehicle 1 is parked on the track for a long time to detect equipment, the locking structure ensures that the wheel set 12 will not accidentally rotate due to external vibration or slight collision. The chuck 7 and its limiting structure further enhance the reliability and stability of the brake. Through mechanical locking, the risk of brake failure in a complex operation environment is effectively prevented, providing additional protection for the stationary state or low-speed accurate operation of the inspection vehicle 1 on the track, ensuring the high-precision development of the inspection work, and improving the accuracy of the inspection data collection.
[0060] Further, the limiting groove 71 and the limiting protrusion 72 are both triangular in cross-section, and the area of the triangle gradually decreases from the edge of the chuck 7 to the center of the chuck 7.
[0061] In this embodiment, when the limiting rod 21 has a slight displacement trend in a vibration environment, the wedge-shaped structure allows the limiting protrusion 72 to quickly slide into the limiting groove 71 during braking, maintaining stable braking. The special triangular cross-section design optimizes the limiting performance of the chuck 7, making it more resistant to interference in harsh working conditions. Even if it is to deal with high-frequency vibration on the track, or the impact force transmitted by the bumpy road surface, the limiting protrusion 72 can still slide into the adjacent limiting groove 71 to achieve braking after sliding out of a limiting groove 71, ensuring the reliability of the braking system, ensuring the safe operation of the inspection vehicle 1, and ensuring that the inspection task is not disturbed by the external environment. Stable progress.
[0062] Further, the first abutting surface 121 is located on the side away from the track relative to the second abutting surface 122.
[0063] In this embodiment, the first abutting surface 121 of the wheel set 12 is located on the side away from the track relative to the second abutting surface 122. When the inspection vehicle 1 is driving on the ground of the passage, the first abutting surface 121 fully contacts the ground, providing stable support. When the inspection vehicle 1 approaches the track to prepare to switch the driving mode, the second abutting surface 122 can be aligned with the track by simply steering, the upper horizontal section 1221 of the second abutting surface 122 abuts the upper surface of the track, and the limiting section 1223 of the outer side abuts the side surface of the track, realizing rapid and accurate track docking and smooth transition to track driving.
[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application. They should be included in the scope of the claims of the present application.
Claims
1. An amphibious inspection vehicle, characterized in that, Comprising: Support plate (11); Wheel group (12), the wheel group (12) is rotatably arranged relative to the support plate (11), the wheel group (12) has first abutting face (121) and second abutting face (122), the first abutting face (121) is cylindrical, the first abutting face (121) is used to support the patrol vehicle (1) on the road surface, the second abutting face (122) includes horizontal section (1221), transition section (1222) and limiting section (1223), the transition section (1222) is connected with the horizontal section (1221) and the limiting section (1223) at both ends, the horizontal section (1221) is used to support the patrol vehicle (1) on the track, and the limiting section (1223) is used to abut with the side surface of the track; Storage box (13), the storage box (13) is arranged on the support plate (11).
2. The highway-railway inspection vehicle according to claim 1, wherein Further comprising: Limiting rod (21), the limiting rod (21) is slidably arranged on the support plate (11), and the limiting rod (21) is in abutment or out of abutment with the wheel group (12) after sliding.
3. The dual-purpose inspection vehicle according to claim 2, characterized in that, Further comprising: Sliding plate (22), the sliding plate (22) is slidably arranged relative to the support plate (11), and the sliding plate (22) is provided with a guide inclined surface (222) at one end close to the limiting rod (21), the guide inclined surface (222) is used to abut with the limiting rod (21) and push the limiting rod (21) to slide after the sliding plate (22) slides; First elastic member (23), the first elastic member (23) acts on the support plate (11) and the limiting rod (21) at both ends respectively, and is used to provide a force for the limiting rod (21) to move away from the wheel group (12).
4. The highway-railway inspection vehicle according to claim 3, wherein The limiting rod (21), the sliding plate (22) and the first elastic member (23) constitute a brake (2), and one brake (2) is arranged corresponding to each wheel group (12), further comprising: Slide rod (3), the slide rod (3) is slidably arranged on the support plate (11), and the sliding plate (22) is arranged on the slide rod (3).
5. The inspection vehicle according to claim 4, wherein Further comprising: Second elastic member (4), the second elastic member (4) acts on the slide rod (3) and the support plate (11) at both ends respectively, and is used to provide a force for the guide inclined surface (222) to move away from the limiting rod (21).
6. The highway-railway inspection vehicle according to claim 5, wherein Further comprising: Handrail (5), the handrail (5) is arranged on the support plate (11), and the handrail (5) is provided with a holding portion (51) at the upper end.
7. The dual-purpose inspection vehicle according to claim 6, characterized in that, Further comprising: Limiting push rod (6), the limiting push rod (6) is arranged on the handrail (5), the limiting push rod (6) has a vertical surface (61) and an inclined surface (62), the vertical surface (61) is parallel to the handrail (5), the inclined surface (62) is communicated with the vertical surface (61) and the side wall of the handrail (5) at both ends, and the slide rod (3) is in abutment with the inclined surface (62) and the vertical surface (61) and slides relative to the support plate (11).
8. The highway-railway inspection vehicle according to claim 2, wherein Further comprising: A chuck (7) is arranged at one end of each of the wheel group (12) and the limiting rod (21) close to each other, the chuck (7) has a plurality of limiting grooves (71) and limiting protrusions (72) distributed at intervals, and the limiting protrusion (72) slides into the opposite limiting groove (71) after the limiting rod (21) slides.
9. The amphibious inspection vehicle according to claim 8, characterized in that The cross sections of the limiting groove (71) and the limiting protrusion (72) are all triangular, and the area of the triangular shape gradually decreases from the edge of the chuck (7) to the center of the chuck (7).
10. The amphibious inspection vehicle of claim 1, wherein, The first abutting surface (121) is located on the side away from the track relative to the second abutting surface (122).