Carrying vehicle

Abstract

The utility model discloses a carrying vehicle. The carrying vehicle comprises a vehicle body, a plurality of main wheels installed on the vehicle body, two transmission modules and two reversing wheel modules. The vehicle body is of a one-piece construction and includes two bearing beams. The two transmission modules are installed on the two bearing beams respectively, and each transmission module comprises a plurality of transmission gears and a cover plate. The multiple transmission gears are installed on the corresponding bearing beams, and the multiple transmission gears are meshed with one another. The cover plates are fixed to the corresponding bearing beams and installed on the multiple transmission gears. The two reversing wheel modules are installed on the vehicle body and are adjacent to the two bearing beams respectively. And the two reverse wheel modules are respectively linked with the plurality of transmission gears of the two transmission modules. Therefore, the carrier can effectively simplify the assembly alignment process, and further achieves the effect of reducing the assembly time.

Description

Technical Field

[0001] The present application relates to the field of transport equipment, and in particular to a transport vehicle. Background Art

[0002] The structure of the existing transport vehicle is not conducive to assembly, which leads to high production costs and long assembly time. For example, the existing transport vehicle needs to first install the gear seat assembly on the vehicle body before the reversing wheel seat assembly can be installed on the gear seat assembly; however, in the process of combining the gear seat assembly with the vehicle body, the gear seat assembly needs to be aligned with multiple structures in the vehicle body, so that the existing alignment assembly method easily leads to excessive assembly time.

[0003] Therefore, the applicant believes that the above defects can be improved, and has devoted himself to research and applied scientific principles, and finally proposed an application that is reasonably designed and effectively improves the above defects. Utility Model Content

[0004] The present application provides a transport vehicle, which can effectively improve the defects that may occur in existing transport vehicles.

[0005] The present application discloses a transport vehicle, which comprises: a vehicle body, which is a single-piece structure; wherein the vehicle body comprises two supporting beams; a plurality of main wheels, which are installed on opposite sides of the vehicle body; two transmission modules, which are respectively installed on the two supporting beams, and each transmission module comprises: a plurality of transmission gears, which are installed on the corresponding supporting beams, and the plurality of transmission gears are meshed with each other; and a cover plate, which is fixed to the corresponding supporting beam and installed on the plurality of transmission gears; and two reversing wheel modules, which are installed on the vehicle body and are respectively adjacent to the two supporting beams; wherein the two reversing wheel modules are respectively linked to the plurality of transmission gears of the two transmission modules.

[0006] Optionally, the vehicle body includes four guide arms, and the two ends of each supporting beam are respectively connected to two guide arms, the two guide arms face each other and each has a convex rib formed on the inner side; each reversing wheel module includes two limiting grooves respectively located at its two ends, and each reversing wheel module is installed on the vehicle body by inserting the two limiting grooves into the convex ribs of the two guide arms facing each other.

[0007] Optionally, the moving directions of the multiple main wheels are defined by a first direction, the multiple transmission gears of each transmission module are meshed sequentially along a second direction perpendicular to the first direction, and the two limit grooves of each reversing wheel module are respectively inserted into the ribs of the corresponding two guide arms along a third direction perpendicular to the first direction and the second direction.

[0008] Optionally, each reversing wheel module includes: a bracket, which is detachably mounted on the vehicle body; a supporting plate, which is arranged on the bracket; a plurality of linear bushings, which are fixed to the bracket at intervals from each other; and a plurality of shaft rods, which are respectively movably inserted into the plurality of linear bushings, and the plurality of shaft rods are fixed to the supporting plate.

[0009] Optionally, each reversing wheel module includes: two actuating gears, pivotally mounted on a bracket and a supporting beam, and the two actuating gears are respectively engaged with multiple transmission gears of the corresponding transmission module and can rotate synchronously in opposite directions; and two cam groups, respectively fixed to the two actuating gears of the corresponding transmission module and can rotate synchronously; wherein, when the two actuating gears rotate from an initial position to a cargo-lifting position, the two cam groups lift the cargo-lifting plate.

[0010] Optionally, each reversing wheel module includes: a bracket, which is detachably mounted on the vehicle body; a plurality of reversing wheels, which are pivotally connected to the bracket, and the movement direction of the plurality of main wheels is defined as a first direction, and the movement direction of the plurality of reversing wheels is defined as a second direction, which is perpendicular to the first direction; two actuating gears, which are pivotally disposed on the bracket and a supporting beam, and the two actuating gears are respectively engaged with the plurality of transmission gears of the corresponding transmission modules and can rotate synchronously in opposite directions to each other; and two cam groups, which are respectively fixed to the two actuating gears of the corresponding transmission modules and can rotate synchronously; wherein, when the two actuating gears rotate from an initial position to a reversing position, the two cam groups lower the bracket so that the plurality of reversing wheels protrude from the bottom edges of the plurality of main wheels.

[0011] Optionally, each reversing wheel module includes: a supporting plate, which is arranged on a bracket; a plurality of linear bushings, which are fixed to the bracket at intervals; and a plurality of shaft rods, which are movably inserted in the plurality of linear bushings, and the plurality of shaft rods are fixed to the supporting plate; wherein, when the two actuating gears rotate from an initial position to a cargo-lifting position, the two cam groups lift the supporting plate.

[0012] Optionally, the transport vehicle includes a driving device for driving two reversing wheel modules, and the driving device includes: a motor fixed to the vehicle body and a supporting beam; a transmission shaft connected to two actuating gears belonging to the two reversing wheel modules; and a driving gear connected to the motor and meshed with an actuating gear connected to the transmission shaft; wherein the motor can rotate the two actuating gears connected to the transmission shaft through the driving gear and the transmission shaft, and rotate the other two actuating gears through the transmission of multiple transmission gears of the two transmission modules.

[0013] Optionally, the vehicle body includes four guide arms, and each supporting beam is connected to two guide arms at both ends, which face each other and each has a convex rib formed on the inner side; the bracket of each reversing wheel module includes two limiting grooves respectively located at its two ends, and each reversing wheel module is installed on the vehicle body by inserting the two limiting grooves into the convex ribs of the two guide arms facing each other.

[0014] The present application also discloses a transport vehicle, which includes: a vehicle body, which is a one-piece structure; wherein the vehicle body includes at least one supporting beam; a plurality of main wheels, which are installed on opposite sides of the vehicle body; at least one transmission module, which includes: a plurality of transmission gears, which are installed on at least one supporting beam, and the plurality of transmission gears are meshed with each other; and a cover plate, which is fixed to at least one supporting beam and installed on the plurality of transmission gears; and at least one reversing wheel module, which is installed on the vehicle body and linked to the plurality of transmission gears.

[0015] Beneficial effects of the utility model

[0016] The transport vehicle disclosed in the present application forms the supporting beam on the vehicle body of the integral structure, so that the multiple transmission gears of the transmission module can be directly installed on the vehicle body through the supporting beam, thereby simplifying the assembly and alignment process, thereby achieving the effect of reducing the assembly man-hours.

[0017] To further understand the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application. However, such description and drawings are only used to illustrate the present application and are not intended to limit the scope of protection of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic exploded view of the transport vehicle according to an embodiment of the present application.

[0019] Figure 2 This is a schematic diagram of an exploded view of the transport vehicle according to an embodiment of the present application from another perspective.

[0020] Figure 3 It is a partial three-dimensional schematic diagram of the transport vehicle according to an embodiment of the present application.

[0021] Figure 4 This is a schematic cross-sectional view of the transport vehicle according to an embodiment of the present application when the actuating gear is located at an initial position (I).

[0022] Figure 5 This is a schematic cross-sectional view of the transport vehicle according to an embodiment of the present application when the actuating gear is located at an initial position (II).

[0023] Figure 6 This is a schematic cross-sectional view of the transport vehicle according to an embodiment of the present application when the actuating gear is located at the cargo lifting position (I).

[0024] Figure 7 This is a schematic cross-sectional view of the transport vehicle according to an embodiment of the present application when the actuating gear is located at the cargo lifting position (II).

[0025] Figure 8 This is a schematic cross-sectional view of the transport vehicle according to an embodiment of the present application when the actuating gear is in the reversing position (I).

[0026] Fig. 9 This is a schematic cross-sectional view of the transport vehicle according to an embodiment of the present application when the actuating gear is in the reversing position (II).

[0027] Fig.10 An exploded schematic diagram of another embodiment of the transport vehicle of the present application. DETAILED DESCRIPTION

[0028] The following is an explanation of the implementation methods of the "transporter" disclosed in this application through specific embodiments. Those skilled in the art can understand the advantages and effects of this application from the contents disclosed in this specification. This application can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of this application. In addition, the drawings of this application are only simple schematic illustrations and are not depicted in actual size. It is stated in advance. The following implementation methods will further explain the relevant technical contents of this application in detail, but the disclosed contents are not intended to limit the scope of protection of this application.

[0029] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are mainly used to distinguish one component from another component. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0030] See also Figures 1 to 10 As shown, it is an embodiment of the present application. Figures 1 to 5 As shown, this embodiment discloses a transport vehicle 100, which can be applied to an automated operating system and can quickly and stably perform reversing operations and lifting operations. The transport vehicle 100 includes a vehicle body 1, a plurality of main wheels 2 installed on the vehicle body 1, two transmission modules 3 installed on opposite sides of the vehicle body 1, two reversing wheel modules 4 respectively linked to the two transmission modules 3, and a driving device 5 for driving the two reversing wheel modules 4, but the present application is not limited thereto.

[0031] For example, in other embodiments not shown in the present application, the number of the transmission modules 3 of the transport vehicle 100 can be at least one, and the number of the reversing wheel modules 4 of the transport vehicle 100 can also be at least one; or, the number of the driving devices 5 can be adjusted and changed according to actual needs (e.g., the transport vehicle 100 uses two driving devices 5 to respectively drive two reversing wheel modules 4).

[0032] In this embodiment, the vehicle body 1 is an integral structure (or a monolithic structure), and the vehicle body 1 includes two side brackets 11 and two supporting beams 12 connected between the two side brackets 11. The two side brackets 11 and the two supporting beams 12 are connected to each other in a substantially H-shaped structure, and each of the side brackets 11 includes two guide arms 111 protruding from the two supporting beams 12 respectively; that is, the two ends of each supporting beam 12 are respectively (vertically) connected to the two guide arms 111.

[0033] In more detail, each of the supporting beams 12 and the two guide arms 111 connected thereto are substantially U-shaped, for mounting one of the transmission modules 3 and one of the reversing wheel modules 4 therein. Furthermore, the two guide arms 111 connected to any of the supporting beams 12 face each other and each of the two guide arms 111 has a convex rib 112 formed on the inner side.

[0034] In addition, to facilitate explanation of the components and connection relationships in this embodiment, the vehicle body 1 defines a first direction D1, a second direction D2, and a third direction D3 that are perpendicular to each other, and the length direction of each side bracket 11 is parallel to the first direction D1, the length direction of each supporting beam 12 is parallel to the second direction D2, and the length direction of each convex rib 112 is parallel to the third direction D3.

[0035] The plurality of main wheels 2 are mounted on opposite sides of the vehicle body 1 (e.g., two side brackets 11), and the movement direction of the plurality of main wheels 2 is parallel to the first direction D1, and the rotation axis of each main wheel 2 is parallel to the second direction D2. In this embodiment, each side bracket 11 is configured with four main wheels 2, and one of the main wheels 2 is configured on the outer side of each guide arm 111, but the present application is not limited thereto.

[0036] The two transmission modules 3 are respectively installed on (outsides of) the two supporting beams 12, and since the two transmission modules 3 in this embodiment adopt substantially the same or symmetrical structure, for ease of description, only a single transmission module 3 is introduced below, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the structures of the two transmission modules 3 may be slightly different.

[0037] In this embodiment, the transmission module 3 includes a plurality of transmission gears 31 and a cover plate 32, and the plurality of transmission gears 31 are mounted on the corresponding supporting beams 12, and the plurality of transmission gears 31 are meshed with each other. The rotation axis of each transmission gear 31 is parallel to the first direction D1, and the plurality of transmission gears 31 may be meshed in sequence along the second direction D2, but not limited thereto.

[0038] Furthermore, the cover plate 32 is fixed to the corresponding supporting beam 12 and installed on the plurality of transmission gears 31 , so that the cover plate 32 and the corresponding supporting beam 12 can surround the plurality of transmission gears 31 inside thereof.

[0039] In summary, the transport vehicle 100 in this embodiment is formed with the supporting beam 12 through the vehicle body 1 of the integral structure, so that the multiple transmission gears 31 of the transmission module 3 can be directly installed on the vehicle body 1 through the supporting beam 12, thereby simplifying the assembly alignment process and achieving the effect of reducing the assembly man-hours.

[0040] The two reversing wheel modules 4 are installed on the vehicle body 1 and are respectively adjacent to the two supporting beams 12, and the two reversing wheel modules 4 are respectively linked to the multiple transmission gears 31 of the two transmission modules 3. Among them, since the two reversing wheel modules 4 adopt a substantially identical or symmetrical structure in this embodiment, for the convenience of description, only a single reversing wheel module 4, the corresponding supporting beam 12, and the corresponding transmission module 3 are introduced below, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the structures of the two reversing wheel modules 4 may be slightly different.

[0041] In this embodiment, the reversing wheel module 4 includes two limiting grooves 411 respectively located at two ends thereof, and each of the reversing wheel modules 4 is installed on the vehicle body 1 by inserting the two limiting grooves 411 (along the third direction D3) respectively into the convex ribs 112 of the two guide arms 111 facing each other. In more detail, the reversing wheel module 4 includes a bracket 41 for mounting other components of the reversing wheel module 4, and the bracket 41 includes two limiting grooves 411 respectively located at two ends thereof, so that the bracket 41 can be detachably mounted on the vehicle body 1, but the present invention is not limited thereto.

[0042] Accordingly, the reversing wheel module 4 disclosed in this embodiment can be matched with the vehicle body 1 through the structure of the two limiting grooves 411 and the corresponding two convex ribs 112 to replace the cam bearings used in existing transport vehicles, thereby effectively saving assembly time and reducing production costs.

[0043] It should be noted that the specific structure of the reversing wheel module 4 can be adjusted and changed according to actual needs, but in order to make the reversing wheel module 4 more conducive to performing the reversing operation and the lifting operation, the following is explained with one of the better specific structures of the reversing wheel module 4, but the present application is not limited to this.

[0044] First, from the perspective of the reversing operation, the reversing wheel module 4 includes a plurality of reversing wheels 42 pivotally connected to the bracket 41, two actuating gears 43 pivotally disposed on the bracket 41 and corresponding to the supporting beam 12, and two cam groups 44 respectively fixed to the two actuating gears 43. Among them, the plurality of reversing wheels 42 are located at the outermost side of the transport vehicle 100, the moving direction of the plurality of reversing wheels 42 is parallel to the second direction D2, and the rotation axis of each reversing wheel 42 is parallel to the first direction D1.

[0045] Furthermore, the rotation axes of the two actuating gears 43 are parallel to the first direction D1, and the two actuating gears 43 are respectively meshed with the corresponding plurality of transmission gears 31 of the transmission module 3, and can rotate synchronously in opposite directions (e.g., if one of the actuating gears 43 rotates in the clockwise direction, the other actuating gear 43 rotates in the counterclockwise direction synchronously). In this embodiment, the two actuating gears 43 and the plurality of transmission gears 31 have the same number of teeth, and the plurality of transmission gears 31 are used as idler gears, and the two actuating gears 43 are respectively meshed with the two outermost transmission gears 31 along the second direction D2, but the present application is not limited thereto.

[0046] The two cam groups 44 are respectively fixed to the two actuating gears 43 corresponding to the transmission module 3 and can rotate synchronously. In other words, the two cam groups 44 can also rotate synchronously in opposite directions. In this embodiment, the two cam groups 44 are arranged in mirror symmetry, and each cam group 44 includes a reversing cam 441 and a cargo-pushing cam 442 arranged in a stack, but the present application is not limited thereto.

[0047] Accordingly, when the two actuating gears 43 are moved from an initial position (eg: Figure 4 and Figure 5 ) to a reversing position (e.g.: Figure 8 and Fig. 9), the two cam groups 44 lower the bracket 41 so that the multiple reversing wheels 42 protrude from the bottom edges of the multiple main wheels 2. In this embodiment, the two reversing cams 441 of the two cam groups 44 abut against the bracket 41 so that the bracket 41 and the multiple reversing wheels 42 move downward along the third direction D3 and protrude from the bottom edges of the multiple main wheels 2.

[0048] In addition, from the perspective of the cargo lifting operation, the reversing wheel module 4 further includes a support plate 45, a plurality of linear bushings 46 fixed to the bracket 41 at intervals, and a plurality of shaft rods 47 movably inserted into the plurality of linear bushings 46. The support plate 45 is movably disposed on the bracket 41, and the plurality of shaft rods 47 are fixed to the support plate 45.

[0049] Accordingly, when the two actuating gears 43 are moved from the initial position (eg: Figure 4 and Figure 5 ) to a loading position (e.g.: Figure 6 and Figure 7 ), the two cam groups 44 lift the object receiving plate 45. In this embodiment, the two cargo-pushing cams 442 of the two cam groups 44 push against the object receiving plate 45, so that the object receiving plate 45 can move upward along the third direction D3 through the cooperation of the plurality of shaft rods 47 and the plurality of linear bushings 46.

[0050] It should be additionally explained that the reversing wheel module 4 in this embodiment is described by the bracket 41 being simultaneously matched with the above-mentioned components capable of realizing the reversing operation (such as: multiple reversing wheels 42, two actuating gears 43, and two cam groups 44), and the above-mentioned components capable of realizing the cargo-lifting operation (such as: the object-carrying plate 45, multiple linear bushings 46, and multiple shaft rods 47), but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the bracket 41 can be matched only with the above-mentioned components capable of realizing the reversing operation according to actual needs; or, the bracket 41 can also be matched only with the above-mentioned components capable of realizing the cargo-lifting operation according to actual needs.

[0051] In addition, if Figures 1 to 5As shown, the above is an explanation of a single reversing wheel module 4 and the corresponding supporting beam 12, and the transport vehicle 100 in this embodiment uses the driving device 5 to simultaneously drive the two reversing wheel modules 4. The driving device 5 includes a motor 51, a transmission shaft 52, and a driving gear 53 connected to the motor 51. Specifically, the motor 51 is fixed to the vehicle body 1 and one of the supporting beams 12, the transmission shaft 52 is parallel to the first direction D1 and is connected to the two actuating gears 43 belonging to the two reversing wheel modules 4, and the driving gear 53 is meshed with one of the actuating gears 43 connected to the transmission shaft 52.

[0052] Accordingly, the motor 51 can rotate the two actuating gears 43 connected to the transmission shaft 52 through the driving gear 53 and the transmission shaft 52, so as to rotate the other two actuating gears 43 through the transmission of the multiple transmission gears 31 of the two transmission modules 3, but the present application is not limited thereto.

[0053] For example, if Fig.10 As shown, the transport vehicle 100 may include two driving devices 5 respectively linked to the two reversing wheel modules 4 according to actual needs, and each of the driving devices 5 includes a motor 51 and a driving gear 53 connected to the motor 51. The two motors 51 are fixed to the vehicle body 1 and respectively fixed to the two supporting beams 12, and the two driving gears 53 are respectively engaged with the two actuating gears 43 belonging to different reversing wheel modules 4. Accordingly, the motor 51 of each driving device 5 can rotate the actuating gear 43 it is engaged with through the driving gear 53, so as to rotate another actuating gear 43 through the transmission of the corresponding plurality of transmission gears 31 of the transmission module 3.

[0054] Technical effects of the embodiments of the present application

[0055] In summary, the transport vehicle disclosed in the embodiment of the present application can form the supporting beam on the vehicle body with an integral structure, so that the multiple transmission gears of the transmission module can be directly installed on the vehicle body through the supporting beam, thereby simplifying the assembly and alignment process, thereby achieving the effect of reducing the assembly man-hours.

[0056] The contents disclosed above are only preferred feasible embodiments of the present application, and are not intended to limit the patent scope of the present application. Therefore, all equivalent technical changes made using the description and drawings of the present application are included in the patent scope of the present application.

Claims

1. A transport vehicle, characterized in that: The transport vehicle comprises: A vehicle body, which is a one-piece structure; wherein the vehicle body includes two supporting beams; a plurality of main wheels mounted on opposite sides of the vehicle body; Two transmission modules are respectively installed on the two supporting beams, and each transmission module comprises: A plurality of transmission gears are mounted on the corresponding supporting beams, and the plurality of transmission gears are meshed with each other; and a cover plate, fixed to the corresponding supporting beam and mounted on the plurality of transmission gears; and Two reversing wheel modules are installed on the vehicle body and are respectively adjacent to the two supporting beams; wherein the two reversing wheel modules are respectively linked to the plurality of transmission gears of the two transmission modules.

2. The transport vehicle according to claim 1, characterized in that: The vehicle body includes four guide arms, and the two ends of each supporting beam are respectively connected to the two guide arms, the two guide arms face each other and each has a convex rib formed on the inner side; each reversing wheel module includes two limiting grooves respectively located at its two ends, and each reversing wheel module is installed on the vehicle body by inserting the two limiting grooves into the convex ribs of the two guide arms facing each other.

3. The transport vehicle according to claim 2, characterized in that: The moving directions of the multiple main wheels are defined as a first direction, and the multiple transmission gears of each transmission module are meshed in sequence along a second direction perpendicular to the first direction, and the two limit grooves of each reversing wheel module are respectively inserted into the convex ribs of the corresponding two guide arms along a third direction perpendicular to the first direction and the second direction.

4. The transport vehicle according to claim 1, characterized in that: Each of the reversing wheel modules comprises: a bracket, detachably mounted on the vehicle body; A supporting plate, arranged on the support; A plurality of linear bushings fixed to the bracket at intervals from each other; as well as A plurality of shaft rods are respectively and movably inserted into the plurality of linear bushings, and the plurality of shaft rods are fixed to the support plate.

5. The transport vehicle according to claim 4, characterized in that: Each of the reversing wheel modules comprises: Two actuating gears are pivotally mounted on the bracket and one of the supporting beams, and the two actuating gears are respectively meshed with a plurality of the transmission gears corresponding to the transmission module and can rotate synchronously in opposite directions; and The two cam groups are respectively fixed to the two actuating gears corresponding to the transmission module and can rotate synchronously; wherein, when the two actuating gears rotate from an initial position to a cargo-lifting position, the two cam groups lift the cargo-carrying plate.

6. The transport vehicle according to claim 1, characterized in that: Each of the reversing wheel modules comprises: a bracket, detachably mounted on the vehicle body; A plurality of reversing wheels are pivotally connected to the bracket, and the moving directions of the plurality of main wheels define a first direction, and the moving directions of the plurality of reversing wheels define a second direction which is perpendicular to the first direction; Two actuating gears are pivotally mounted on the bracket and one of the supporting beams, and the two actuating gears are respectively meshed with a plurality of the transmission gears corresponding to the transmission module and can rotate synchronously in opposite directions; and The two cam groups are respectively fixed to the two actuating gears corresponding to the transmission module and can rotate synchronously; wherein, when the two actuating gears rotate from an initial position to a reversing position, the two cam groups lower the bracket so that the multiple reversing wheels protrude from the bottom edges of the multiple main wheels.

7. The transport vehicle according to claim 6, characterized in that: Each of the reversing wheel modules comprises: A supporting plate, arranged on the support; A plurality of linear bushings fixed to the bracket at intervals from each other; as well as A plurality of shaft rods are respectively movably inserted into the plurality of linear bushings, and the plurality of shaft rods are fixed to the support plate; wherein, when the two actuating gears rotate from the initial position to a cargo-lifting position, the two cam groups lift the support plate.

8. The transport vehicle according to claim 5 or 6, characterized in that: The transport vehicle includes a driving device for driving the two reversing wheel modules, and the driving device includes: a motor fixed to the vehicle body and one of the supporting beams; a transmission shaft connected to the two actuating gears belonging to the two reversing wheel modules; and a driving gear connected to the motor and meshing with one of the actuating gears connected to the transmission shaft; The motor can rotate the two actuating gears connected to the transmission shaft through the driving gear and the transmission shaft, and can rotate the other two actuating gears through the transmission of the plurality of transmission gears of the two transmission modules.

9. The transport vehicle according to claim 5 or 6, characterized in that: The vehicle body includes four guide arms, and each of the supporting beams is connected to two guide arms at both ends, which face each other and each has a convex rib formed on the inner side; the bracket of each reversing wheel module includes two limiting grooves located at both ends thereof, and each reversing wheel module is installed on the vehicle body by inserting the two limiting grooves into the convex ribs of the two guide arms facing each other.

10. A transport vehicle, characterized in that: The transport vehicle comprises: A vehicle body, which is a one-piece structure; wherein the vehicle body includes at least one supporting beam; a plurality of main wheels mounted on opposite sides of the vehicle body; At least one transmission module, comprising: a plurality of transmission gears mounted on at least one of the supporting beams, and the plurality of transmission gears mesh with each other; and a cover plate fixed to at least one of the supporting beams and mounted on the plurality of transmission gears; and At least one reversing wheel module is installed on the vehicle body and linked to the plurality of transmission gears.

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