Traveling structure of detection trolley

Abstract

The utility model relates to a walking structure of a detection trolley. The technical problems that an existing detection trolley is insufficient in displacement fluency, not high in applicability and the like are solved. Comprising two steering wheel sets arranged on one side of the lower end of a trolley frame and a walking wheel set arranged on the other side of the lower end of the trolley frame, each steering wheel set is provided with a steering wheel body, the steering wheel bodies are connected with a steering driving assembly, and the steering wheel bodies of the two steering wheel sets are mutually linked through a steering linkage structure of a multi-section structure. The walking wheel sets are provided with walking wheel bodies, each walking wheel set is provided with a walking wheel body, and the walking wheel bodies are connected with the walking driving assembly. The trolley frame has the advantages that the distance between the upper bottom beam and the lower bottom beam can be conveniently adjusted through the screw elevator, so that the height of the walking wheel set and the height of the steering wheel set can be conveniently adjusted, and the applicability of the trolley frame is improved. The steering wheel sets at the two ends of the trolley frame can steer synchronously through the linkage shaft linkage assembly, and the steering effect of the trolley frame is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of trolley traveling equipment, and in particular relates to a traveling structure of a detection trolley. Background Art

[0002] Tunnel inspection trolleys are mainly used for inspection and maintenance work inside tunnels, and existing tunnel inspection trolleys are displaced in the tunnel through a walking structure. The current walking structure is mostly a driving wheel set at one end of the tunnel inspection trolley and a steering wheel set at the other end of the tunnel inspection trolley. However, the existing steering wheel and driving wheel are both single wheel bodies, resulting in insufficient stability during the displacement of the tunnel inspection trolley, affecting the smoothness of the displacement, and the existing tunnel inspection trolley cannot adjust the height of the steering wheel and the driving wheel, and cannot adjust the height of the steering wheel and the driving wheel according to the use environment, which is insufficient in practicality. Summary of the Invention

[0003] The purpose of this utility model is to provide a walking structure for a detection trolley in order to solve the above problems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a detection trolley walking structure, including two groups of steering wheel groups arranged on one side of the lower end of the trolley frame and a walking wheel group arranged on the other side of the lower end of the trolley frame, each group of steering wheel groups respectively has a steering wheel body, the steering wheel body is connected to the steering drive assembly, and the steering wheel bodies of the two groups of steering wheel groups are linked to each other through a steering linkage structure extending to the upper end of the trolley frame and having a multi-section structure. The walking wheel group has a walking wheel body, and each group of walking wheel groups respectively has a walking wheel body, and the walking wheel bodies are respectively connected to the walking drive assembly, and the steering wheel body can be driven to steer by the steering drive assembly, and the two ends of the trolley frame can be synchronously steered by the steering linkage structure, thereby achieving the steering effect of the trolley frame, and the walking wheel group can be driven to rotate by the walking drive assembly to drive the trolley frame to move.

[0005] In the above-mentioned inspection trolley walking structure, the trolley frame has four vertically arranged support columns, and the steering wheel group and the walking wheel group are respectively arranged at the lower ends of the four support columns. The support columns can be used to facilitate connection with the steering wheel group and the walking wheel group, and the steering wheel group and the walking wheel group can drive the trolley frame to move and steer.

[0006] In the above-mentioned walking structure of the inspection trolley, each set of steering wheel groups has two symmetrically arranged steering wheel bodies, and each set of walking wheel groups includes two symmetrically arranged walking wheel bodies. The two steering wheel bodies and the two walking wheel bodies can ensure the support stability of the trolley frame and the stability of the trolley frame during the displacement and steering process, thereby ensuring the inspection effect.

[0007] In the above-mentioned walking structure of the inspection trolley, the steering drive assembly includes a steering mounting seat arranged on one side of the lower end of the supporting column, a steering motor seat is provided on one side of the steering mounting seat, a steering motor is provided on the upper end of the steering motor seat, and a steering cylinder body is provided on one side of the steering mounting seat at the lower end of the steering motor seat. A steering shaft is vertically passed through the steering cylinder body, and the upper end of the steering shaft is connected to the output shaft of the steering motor, and the lower end of the steering shaft is connected to the steering wheel seat, and the two steering wheel bodies of the steering wheel group are symmetrically arranged on both sides of the steering wheel seat, the steering shaft and the output shaft of the steering motor are connected by a coupling, and the steering shaft can drive the steering wheel seat to rotate, thereby driving the steering wheel body to steer.

[0008] In the above-mentioned walking structure of the inspection trolley, the steering linkage structure includes two vertical linkage shafts that are arranged vertically and axially on one side of the supporting column. The upper ends of the vertical linkage shafts extend to the upper end of the trolley frame and are respectively connected to the two ends of the horizontal linkage shaft horizontally arranged on one side of the upper end of the trolley frame through the linkage shaft linkage assembly. The lower ends of the vertical linkage shafts are respectively connected to the steering shafts through the linkage gear sets. The vertical linkage shafts can be connected to the rotating shaft through the linkage gear sets and the horizontal linkage shafts can be driven to rotate through the linkage shaft linkage assembly. When the rotating motor at one end of the trolley frame is driven to rotate, the steering wheel body at the other end can be driven to steer through the linkage shaft linkage assembly and the linkage gear set, thereby reducing operating energy consumption and ensuring synchronous steering effect.

[0009] In the above-mentioned walking structure of the inspection trolley, the linkage shaft linkage assembly includes a first linkage bevel gear arranged at both ends of the horizontal linkage shaft, and the upper end of the vertical linkage shaft is provided with a second linkage bevel gear meshing with the first linkage bevel gear, and a linkage shaft protective cover is provided on one side of the upper end of the trolley frame, and the first linkage bevel gear and the second linkage bevel gear are both located in the linkage shaft protective cover. The output linkage shaft can drive the horizontal linkage shaft to rotate synchronously through the first linkage bevel gear and the second linkage bevel gear, and the linkage shaft protective cover can protect the first linkage bevel gear and the second linkage bevel gear, thereby improving the service life and ensuring the transmission effect.

[0010] In the above-mentioned inspection trolley walking structure, a gear guard is provided on the outside of the steering mounting seat, and the linkage gear group is arranged in the gear guard, and the linkage gear group includes a steering gear fixedly arranged on the steering shaft, a transmission gear is meshed on one side of the steering gear, and the upper end of the transmission gear is connected to a first bevel gear, the first bevel gear is meshed with one end of the horizontally arranged bevel gear group, and the other end of the bevel gear group is meshed with the second bevel gear arranged at the lower end of the vertical linkage shaft, the steering gear can rotate synchronously with the steering shaft, and the steering gear can drive the first bevel gear and the bevel gear group to rotate through the meshing transmission gear, and the steering shaft can drive the vertical linkage shaft to rotate through the second bevel gear meshing with the bevel gear group.

[0011] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0012] In the above-mentioned inspection trolley walking structure, a walking wheel seat is provided on the lower side of one end of the lower bottom beam, a walking wheel axle is horizontally passed through the walking wheel seat, and the walking wheel bodies are respectively arranged at both ends of the walking wheel axle, and the walking drive assembly includes a walking drive motor arranged at one end of the lower bottom beam, the output shaft of the walking drive motor is connected to two driving sprockets, and two driven sprockets are respectively provided on the walking wheel axle, the driving sprocket and the driven sprocket correspond one to one and are connected by an obliquely arranged chain, and the driving sprocket and the driven sprocket can be connected through the chain, and the driving sprocket can be driven to rotate by the walking drive motor, and the walking wheel axle is driven to rotate by the driven sprocket, thereby driving the walking wheel body to move.

[0013] In the above-mentioned walking structure of the inspection trolley, a transmission box is provided on the upper side of one end of the lower bottom beam, one end of the transmission box is connected to the walking drive motor, and the driving sprockets are respectively arranged on both sides of the transmission box. Chain guards are provided on both sides of the transmission box, which are inclined and cover the outside of the chain. The walking drive motor can drive the driving sprocket to rotate through the transmission box, and the chain guard can protect the chain, thereby improving the service life of the chain and ensuring the transmission effect.

[0014] Compared with the existing technology, the advantages of this utility model are:

[0015] 1. The screw lift can easily adjust the distance between the upper bottom beam and the lower bottom beam, so as to facilitate the adjustment of the height of the walking wheel group and the steering wheel group, thereby improving the applicability of the trolley frame.

[0016] 2. The steering wheel groups at both ends of the trolley frame can be steered synchronously through the linkage shaft linkage assembly to ensure the steering effect of the trolley frame.

[0017] 3. The chain guard and linkage shaft guard can provide protection and extend service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a structural diagram of the linkage shaft linkage assembly in the utility model.

[0020] Figure 3 It is a structural diagram of the linkage gear set in the utility model.

[0021] Figure 4 It is a structural diagram of the walking drive assembly in the utility model.

[0022] Figure 5 It is a structural exploded view of the traveling wheel seat in the utility model.

[0023] In the figure: trolley frame 1, support column 11, steering wheel group 2, steering wheel body 21, running wheel group 3, running wheel body 31, steering drive assembly 4, steering mounting seat 41, gear protection cover 411, steering motor seat 42, steering motor 43, steering cylinder 44, steering shaft 45, steering wheel seat 46, steering linkage structure 5, vertical linkage shaft 51, horizontal linkage shaft 52, linkage gear group 53, steering gear 531, transmission gear 532, first bevel gear 533, Bevel gear set 534, second bevel gear 535, travel drive assembly 6, travel drive motor 61, driving sprocket 62, driven sprocket 63, chain 64, linkage shaft linkage assembly 7, first linkage bevel gear 71, second linkage bevel gear 72, linkage shaft protective cover 73, support bottom frame 8, upper bottom beam 81, lower bottom beam 82, adjustable fixed seat 83, guide rod 84, screw elevator 85, travel wheel seat 9, travel wheel shaft 91, transmission box 10, chain protective cover 101. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] like Figure 1 、 Figure 4 The trolley frame 1 is provided with two sets of steering wheel groups 2 and a walking wheel group 3 on the other side of the lower end of the trolley frame 1. The walking wheel group 3 can drive the trolley frame 1 to move in the tunnel, and the steering wheel group 2 can ensure that the trolley frame 1 is steered. Each set of steering wheel groups 2 has a steering wheel body 21, and the steering wheel body 21 is connected to the steering drive assembly 4. The steering wheel bodies 21 of the two sets of steering wheel groups 2 are linked to each other through a steering linkage structure 5 extending to the upper end of the trolley frame 1 and having a multi-section structure. The walking wheel group 3 has a walking wheel body 31, and each set of walking wheel groups 3 has a walking wheel body 31, and the walking wheel bodies 31 are respectively connected to the walking drive assembly 6. The steering wheel body 21 can be driven to steer by the steering drive assembly 4, and the two ends of the trolley frame 1 can be synchronously steered by the steering linkage structure 5, so as to achieve the steering effect of the trolley frame 1, and the walking wheel group 3 can be driven to rotate by the walking drive assembly 6 to drive the trolley frame 1 to move.

[0026] Specifically, the trolley frame 1 has four vertically arranged support columns 11, and the steering wheel group 2 and the traveling wheel group 3 are respectively arranged at the lower ends of the four support columns 11. The support columns 11 can be conveniently connected to the steering wheel group 2 and the traveling wheel group 3, and the steering wheel group 2 and the traveling wheel group 3 can drive the trolley frame 1 to move and steer.

[0027] Among them, each set of steering wheel groups 2 has two symmetrically arranged steering wheel bodies 21, and each set of running wheel groups 3 includes two symmetrically arranged running wheel bodies 31. The two steering wheel bodies 21 and the two running wheel bodies 31 can ensure the support stability of the trolley frame 1 and ensure the stability of the trolley frame 1 during the displacement and steering process, thereby ensuring the detection effect.

[0028] like Figure 1 、 Figure 2 、 Figure 3 As shown, the steering drive assembly 4 includes a steering mounting seat 41 arranged on one side of the lower end of the support column 11, a steering motor seat 42 is provided on one side of the steering mounting seat 41, and a steering motor 43 is provided on the upper end of the steering motor seat 42. The steering motor 43 can be fixed on the steering mounting seat 41 through the steering motor seat 42, and a steering cylinder 44 is provided on one side of the steering mounting seat 41 at the lower end of the steering motor seat 42. A steering shaft 45 is vertically passed through the steering cylinder 44, and the upper end of the steering shaft 45 is connected to the output shaft of the steering motor 43, and the lower end of the steering shaft 45 is connected to the steering wheel seat 46, and the two steering wheel bodies 21 of the steering wheel group 2 are symmetrically arranged on both sides of the steering wheel seat 46, and the steering shaft 45 and the output shaft of the steering motor 43 are connected by a coupling, and the steering shaft 45 can drive the steering wheel seat 46 to rotate, thereby driving the steering wheel body 21 to steer.

[0029] Furthermore, the steering linkage structure 5 includes two vertical linkage shafts 51 that are vertically arranged and axially arranged on one side of the support column 11. The upper ends of the vertical linkage shafts 51 extend to the upper end of the trolley frame 1 and are respectively connected to the two ends of the horizontal linkage shaft 52 horizontally arranged on one side of the upper end of the trolley frame 1 through the linkage shaft linkage assembly 7. The lower ends of the vertical linkage shafts 51 are respectively connected to the steering shaft 45 through the linkage gear set 53. The vertical linkage shaft 51 can be transmission-connected to the rotating shaft 45 through the linkage gear set 53, and the horizontal linkage shaft 52 can be driven to rotate through the linkage shaft linkage assembly 7. When the rotating motor 43 at one end of the trolley frame 1 is driven to rotate, the steering wheel body 21 at the other end can be driven to steer through the linkage shaft linkage assembly 7 and the linkage gear set 53, thereby reducing operating energy consumption and ensuring a synchronous steering effect.

[0030] Among them, the linkage shaft linkage assembly 7 includes a first linkage bevel gear 71 arranged at both ends of the horizontal linkage shaft 52, and a second linkage bevel gear 72 meshing with the first linkage bevel gear 71 is provided at the upper end of the vertical linkage shaft 51, and a linkage shaft protective cover 73 is provided on one side of the upper end of the trolley frame 1, and the first linkage bevel gear 71 and the second linkage bevel gear 72 are both located in the linkage shaft protective cover 73. The first linkage bevel gear 71 and the second linkage bevel gear 72 can be used to enable the output linkage shaft 51 to drive the horizontal linkage shaft 52 to rotate synchronously, and the linkage shaft protective cover 73 can protect the first linkage bevel gear 71 and the second linkage bevel gear 72, thereby improving service life and ensuring transmission effect.

[0031] Combine Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 As shown, a gear protection cover 411 is provided on the outside of the steering mounting seat 41, and a linkage gear set 53 is arranged in the gear protection cover 411, and the linkage gear set 53 includes a steering gear 531 fixedly arranged on the steering shaft 45, and a transmission gear 532 is meshed on one side of the steering gear 531, and the upper end of the transmission gear 532 is connected to the first bevel gear 533, the first bevel gear 533 is meshed with one end of a horizontally arranged bevel gear set 534, and the other end of the bevel gear set 534 is meshed with a second bevel gear 535 arranged at the lower end of the vertical linkage shaft 51, the steering gear 531 can rotate synchronously with the steering shaft 45, and the steering gear 531 can drive the first bevel gear 533 and the bevel gear set 534 to rotate through the meshing transmission gear 532, and the steering shaft 45 can drive the vertical linkage shaft 51 to rotate through the second bevel gear 535 meshing with the bevel gear set 534.

[0032] Among them, a supporting bottom frame 8 is provided between the lower ends of two supporting columns 11 located on the same side of the trolley frame 1 among the four supporting columns 11. The supporting bottom frame 8 has an upper bottom beam 81 and a lower bottom beam 82 arranged in parallel above and below. The upper bottom beam 81 and the lower bottom beam 82 are connected by an adjustable fixing seat 83. The steering mounting seat 41 is fixed between the same end of the upper bottom beam 81 and the lower bottom beam 82. The upper bottom beam 81 is fixed at the lower end of the supporting column 11 and the upper sides of the two ends of the lower bottom beam 82 are respectively provided with movable holes. A guide rod 84 is provided at the end of the upper bottom beam 81, and several linked screw elevators 85 are provided between the upper bottom beam 81 and the lower bottom beam 82. The steering wheel group 2 and the traveling wheel group 3 are both arranged on the lower bottom beam 82. The screw elevator 85 can be used to easily adjust the distance between the upper bottom beam 81 and the lower bottom beam 82, thereby facilitating the adjustment of the height of the steering wheel group 2 and the traveling wheel group 3, thereby improving the applicability of the trolley frame 1, and the guide rod 84 can facilitate the lifting and guiding of the lower bottom beam 82.

[0033] Specifically, a walking wheel seat 9 is provided on the lower side of one end of the lower bottom beam 82, and a walking wheel axle 91 is horizontally penetrated in the walking wheel seat 9, and the walking wheel body 31 is respectively arranged at both ends of the walking wheel axle 91, and the walking wheel seat 9 can be used to facilitate the installation of the walking wheel axle 91, and the walking wheel axle 91 is rotatably arranged in the walking wheel seat 9, and the walking drive assembly 6 includes a walking drive motor 61 arranged at one end of the lower bottom beam 82, and the output shaft of the walking drive motor 61 is connected to two driving sprockets 62, and two driven sprockets 63 are respectively provided on the walking wheel axle 91, and the driving sprocket 62 and the driven sprocket 63 correspond one to one and are connected by an obliquely arranged chain 64, and the driving sprocket 62 and the driven sprocket 63 can be transmission-connected by the chain 64, and the driving sprocket 62 can be driven to rotate by the walking drive motor 61, and the walking wheel axle 91 is driven to rotate by the driven sprocket 63, thereby driving the walking wheel body 31 to move.

[0034] Combine Figure 1 、 Figure 5 As shown, a transmission box 10 is provided on the upper side of one end of the lower base beam 82, and one end of the transmission box 10 is connected to the travel drive motor 61. The driving sprockets 62 are respectively arranged on both sides of the transmission box 10, and chain protection covers 101 are provided on both sides of the transmission box 10. The chain protection covers 101 are arranged obliquely and cover the outside of the chain 64. The travel drive motor 61 can drive the driving sprocket 62 to rotate through the transmission box 10, and the chain 64 can be protected by the chain protection cover 101, thereby improving the service life of the chain and ensuring the transmission effect.

[0035] The principle of this embodiment is that the trolley frame 1 is connected to the supporting base frame 8 through the supporting column 11, and the steering wheel group 2 and the traveling wheel group 3 are respectively arranged at the ends of the supporting base frame 8. The height of the supporting base frame 8 can be easily adjusted through the guide rod 84 and the screw elevator 85, so that the height of the steering wheel group 2 and the traveling wheel group 3 can be adjusted, and the height stability of the supporting base frame 8 can be ensured by the adjustable fixing seat 83. Each of the steering wheel group 2 and the traveling wheel group 3 has two steering wheel bodies 21 and traveling wheel bodies 3 respectively, which can ensure the support stability of the trolley frame 1, ensure the displacement smoothness and steering stability, and the steering effect of the trolley frame 1 can be ensured through the linkage shaft linkage assembly 7 to ensure synchronous steering.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0037] Although this article uses more trolley frame 1, support column 11, steering wheel group 2, steering wheel body 21, walking wheel group 3, walking wheel body 31, steering drive assembly 4, steering mounting seat 41, gear protection cover 411, steering motor seat 42, steering motor 43, steering cylinder 44, steering shaft 45, steering wheel seat 46, steering linkage structure 5, vertical linkage shaft 51, horizontal linkage shaft 52, linkage gear group 53, steering gear 531, transmission gear 532, first bevel gear 533, bevel gear group 53 4, second bevel gear 535, travel drive assembly 6, travel drive motor 61, driving sprocket 62, driven sprocket 63, chain 64, linkage shaft linkage assembly 7, first linkage bevel gear 71, second linkage bevel gear 72, linkage shaft protective cover 73, support base frame 8, upper base beam 81, lower base beam 82, adjustable fixing base 83, guide rod 84, screw lift 85, travel wheel seat 9, travel wheel shaft 91, transmission box 10, chain protective cover 101, etc., but the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional limitations is contrary to the spirit of the utility model.

Claims

1. A detection trolley walking structure, comprising two sets of steering wheel groups (2) arranged on one side of the lower end of the trolley frame (1) and a walking wheel group (3) arranged on the other side of the lower end of the trolley frame (1), characterized in that: Each set of steering wheel groups (2) has a steering wheel body (21), and the steering wheel body (21) is connected to the steering drive assembly (4). The steering wheel bodies (21) of the two sets of steering wheel groups (2) are linked to each other through a steering linkage structure (5) extending to the upper end of the trolley frame (1) and having a multi-stage structure. The running wheel group (3) has a running wheel body (31), and each set of running wheel groups (3) has a running wheel body (31), and the running wheel body (31) is connected to the running drive assembly (6).

2. The walking structure of the inspection trolley according to claim 1, characterized in that: The trolley frame (1) has four vertically arranged support columns (11), and the steering wheel group (2) and the traveling wheel group (3) are respectively arranged at the lower ends of the four support columns (11).

3. The walking structure of the inspection trolley according to claim 2, characterized in that: Each set of steering wheel groups (2) has two symmetrically arranged steering wheel bodies (21), and each set of running wheel groups (3) includes two symmetrically arranged running wheel bodies (31).

4. A traveling structure for a testing trolley according to claim 2 or 3, characterized in that: The steering drive assembly (4) includes a steering mounting seat (41) arranged on one side of the lower end of the support column (11), a steering motor seat (42) is provided on one side of the steering mounting seat (41), a steering motor (43) is provided on the upper end of the steering motor seat (42), a steering cylinder (44) is provided on one side of the steering mounting seat (41) and is located at the lower end of the steering motor seat (42), a steering shaft (45) is vertically passed through the steering cylinder (44), and the upper end of the steering shaft (45) is connected to the output shaft of the steering motor (43), and the lower end of the steering shaft (45) is connected to the steering wheel seat (46), and the two steering wheel bodies (21) of the steering wheel group (2) are symmetrically arranged on both sides of the steering wheel seat (46).

5. The traveling structure of the inspection trolley according to claim 4, characterized in that: The steering linkage structure (5) comprises two vertical linkage shafts (51) arranged vertically and axially arranged on one side of the support column (11); the upper ends of the vertical linkage shafts (51) respectively extend to the upper end of the trolley frame (1) and are respectively connected to the two ends of the horizontal linkage shaft (52) horizontally arranged on one side of the upper end of the trolley frame (1) through the linkage shaft linkage assembly (7); the lower ends of the vertical linkage shafts (51) are respectively connected to the steering shaft (45) through the linkage gear set (53).

6. The traveling structure of the inspection trolley according to claim 5, characterized in that: The linkage shaft linkage assembly (7) comprises a first linkage bevel gear (71) arranged at both ends of the horizontal linkage shaft (52); a second linkage bevel gear (72) meshing with the first linkage bevel gear (71) is provided at the upper end of the vertical linkage shaft (51); a linkage shaft protective cover (73) is provided on one side of the upper end of the trolley frame (1); and the first linkage bevel gear (71) and the second linkage bevel gear (72) are both located in the linkage shaft protective cover (73).

7. The traveling structure of the inspection trolley according to claim 5, characterized in that: A gear protection cover (411) is provided on the outside of the steering mounting seat (41), and the linkage gear set (53) is arranged in the gear protection cover (411). The linkage gear set (53) includes a steering gear (531) fixedly arranged on the steering shaft (45), one side of the steering gear (531) is meshed with a transmission gear (532), and the upper end of the transmission gear (532) is connected to a first bevel gear (533), the first bevel gear (533) is meshed with one end of a horizontally arranged bevel gear set (534), and the other end of the bevel gear set (534) is meshed with a second bevel gear (535) arranged at the lower end of the vertical linkage shaft (51).

8. The traveling structure of the inspection trolley according to claim 4, characterized in that: A support base frame (8) is provided between the lower ends of two support bases (11) located on the same side of the trolley frame (1) among the four support bases (11). The support base frame (8) has an upper bottom beam (81) and a lower bottom beam (82) arranged in parallel above and below. The upper bottom beam (81) and the lower bottom beam (82) are connected by an adjustable fixing seat (83). The steering mounting seat (41) is fixed between the same end of the upper bottom beam (81) and the lower bottom beam (82). The upper bottom beam (81) is fixedly provided at the lower end of the support base (11) and the upper sides of the two ends of the lower bottom beam (82) are respectively provided with guide rods (84) movably penetrated through the end of the upper bottom beam (81). A plurality of screw elevators (85) connected in linkage are provided between the upper bottom beam (81) and the lower bottom beam (82).

9. The traveling structure of the inspection trolley according to claim 8, characterized in that: A walking wheel seat (9) is provided on the lower side of one end of the lower bottom beam (82), a walking wheel shaft (91) is horizontally passed through the walking wheel seat (9), and the walking wheel bodies (31) are respectively provided at both ends of the walking wheel shaft (91), and the walking drive assembly (6) includes a walking drive motor (61) provided at one end of the lower bottom beam (82), the output shaft of the walking drive motor (61) is connected to two driving sprockets (62), and two driven sprockets (63) are respectively provided on the walking wheel shaft (91), and the driving sprockets (62) and the driven sprockets (63) correspond to each other one by one and are connected by an inclined chain (64).

10. The traveling structure of the inspection trolley according to claim 9, characterized in that: A transmission box (10) is provided on the upper side of one end of the lower bottom beam (82), one end of the transmission box (10) is connected to the travel drive motor (61), the driving sprockets (62) are respectively arranged on both sides of the transmission box (10), and chain guards (101) are provided on both sides of the transmission box (10) and are arranged obliquely and cover the outside of the chain (64).

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