Carrying vehicle and telescopic mechanism thereof

Abstract

The utility model discloses a carrying vehicle and a telescopic mechanism thereof. The telescopic mechanism comprises a chain seat and a fork arm module which is installed on the chain seat in a telescopic mode. The chain seat comprises a frame body, two chain wheels pivoted to the frame body, a plurality of guide blocks fixed to the frame body and located between the two chain wheels, and a chain in a closed ring shape. The plurality of guide blocks define an upper guide path and a lower guide path which are spaced from each other. The chain is arranged around the two chain wheels and is arranged along the upper guide path and the lower guide path. The fork arm module comprises a rack and a telescopic fork arm linked with the rack, and the rack is meshed with the portion, located on the upper guide path, of the chain. Accordingly, the chain seat and the fork arm module can be independently assembled through the telescopic mechanism, then the structure of the carrier is modularized, the production cost of the carrier is reduced, and the assembling time of the carrier is shortened.

Description

Technical Field

[0001] The present application relates to the field of transport equipment, and in particular to a transport vehicle and a telescopic mechanism thereof used in an automated operating system. Background Art

[0002] The structure of the existing transport vehicle is not conducive to assembly, which leads to high production costs and a long assembly process. For example, the existing transport vehicle needs to first assemble the chain on the fork arm and then connect the chain to the vehicle body. However, during the process of connecting the chain to the vehicle body, the chain and the fork arm need to be lifted and maintained in the installed state so that the chain can be aligned with the structure inside the vehicle body to complete the assembly.

[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 and a telescopic mechanism thereof, 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; a plurality of main wheels mounted on opposite sides of the vehicle body to form two rows; and at least one telescopic mechanism, comprising: a chain seat, comprising: a frame fixed to the vehicle body; two sprockets pivotally connected to the frame; a plurality of guide blocks fixed to the frame and located between the two sprockets; wherein the plurality of guide blocks define an upper guide path and a lower guide path spaced apart from each other; and a chain in a closed loop shape; wherein the chain is disposed around the two sprockets and arranged along the upper guide path and the lower guide path; and a fork arm module fixed to the vehicle body, and the fork arm module is telescopically mounted on the chain seat; wherein the fork arm module comprises a rack and a telescopic fork arm linked to the rack, and the rack is engaged with the portion of the chain located on the upper guide path.

[0006] Optionally, the moving directions of the multiple main wheels are defined by a first direction, the vehicle body includes multiple support columns, each support column has a first bearing surface, and a support column is arranged on each of the opposite outer sides of each row of main wheels; wherein the transport vehicle further includes multiple guide wheel seats respectively fixed to the multiple support columns, and each guide wheel seat is fixed to the first bearing surface of the corresponding support column along the first direction.

[0007] Optionally, in any row of main wheels and its corresponding two support columns and two guide wheel seats, the two guide wheel seats are respectively located on opposite outer sides of the two support columns, and the first bearing surface of each support column is perpendicular to the first direction.

[0008] Optionally, each guide wheel seat includes: a cross beam having two side surfaces and a bottom surface connected to the two side surfaces, and one of the side surfaces of the cross beam rests against a first supporting surface of a corresponding support column along a first direction; and a plurality of guide wheels pivotally connected to the bottom surface of the cross beam.

[0009] Optionally, each support column has a second bearing surface perpendicular to the first bearing surface; in each guide wheel seat, the beam has a top surface connected to two side surfaces, which has two step surfaces and a ladder surface connecting the two step surfaces, and the beam rests against the second bearing surface of the corresponding support column with the ladder surface along a second direction perpendicular to the first direction.

[0010] Optionally, a groove is formed at the bottom of each support column, and the first bearing surface is a partial inner wall of the groove; wherein a partial cross beam of each guide wheel seat is embedded in the groove of the corresponding support column.

[0011] Optionally, the moving directions of the multiple main wheels are defined as a first direction, and the transport vehicle further includes at least one reversing wheel module, which includes: a bracket, fixed to the vehicle body and having two reversing wheel seats; two running wheels, respectively arranged in the two reversing wheel seats; wherein the moving direction of the two running wheels is defined as a second direction perpendicular to the first direction; four bearing seats, each of which is a one-piece structure, and two bearing seats are respectively locked on the opposite outer sides of each reversing wheel seat; and four bearings, respectively fixed to the four bearing seats, and two bearings are installed on the wheel axle of each running wheel.

[0012] Optionally, each bearing seat has a plurality of screw holes, and at least one screw hole of each bearing seat is elongated and parallel to the second direction.

[0013] Optionally, at least one of the reversing wheel modules further comprises a plurality of retaining rings, and each bearing seat is provided with two retaining rings which fix the corresponding bearings.

[0014] The present application also discloses a telescopic mechanism of a transport vehicle, which comprises: a chain seat, comprising: a frame; two sprockets, pivotally connected to the frame; a plurality of guide blocks, fixed to the frame and located between the two sprockets; wherein the plurality of guide blocks define an upper guide path and a lower guide path spaced apart from each other; and a chain, in the shape of a closed loop; wherein the chain is arranged around the two sprockets and arranged along the upper guide path and the lower guide path; and a fork arm module, telescopically mounted on the chain seat; wherein the fork arm module comprises a rack and a telescopic fork arm linked to the rack, and the rack is engaged with the portion of the chain located on the upper guide path.

[0015] Beneficial effects of the utility model

[0016] The transport vehicle and its telescopic mechanism disclosed in the present application realize the independent assembly of the chain seat and the fork arm module through the modularization of the chain seat and the fork arm module, thereby modularizing the structure of the transport vehicle, which is conducive to reducing the production cost of the transport vehicle and shortening its assembly process. For example, the chain of the chain seat can be adjusted and its tightness can be confirmed before being installed on the vehicle body, and the fork arm module can be installed on the vehicle body by only engaging the rack with the chain of the chain seat, without adjusting and confirming the tightness of the chain.

[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 for Figure 1 A three-dimensional schematic diagram of the chain seat.

[0020] Figure 3 It is a partial cross-sectional schematic diagram of the telescopic mechanism of the transport vehicle according to an embodiment of the present application.

[0021] Figure 4 for Figure 1 Schematic diagram of enlarged area IV.

[0022] Figure 5 for Figure 4 Schematic diagram of the decomposition.

[0023] Figure 6 It is a partially enlarged schematic diagram of the transport vehicle according to an embodiment of the present application.

[0024] Figure 7 It is a partial enlarged schematic diagram of the body of the transport vehicle according to an embodiment of the present application.

[0025] Figure 8 It is a schematic exploded view of the reversing wheel module of the transport vehicle according to an embodiment of the present application.

[0026] Fig. 9 for Figure 8 A plan view of the bearing seat. DETAILED DESCRIPTION

[0027] The following is an explanation of the implementation methods of the "transporter and its telescopic mechanism" 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 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 according to actual dimensions. 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.

[0028] 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.

[0029] See also Figures 1 to 9 As shown, it is an embodiment of the present application. Figure 1 As shown, this embodiment discloses a transport vehicle 100, which can be applied to an automated operating system so that goods can be placed therein for transport operations. The transport vehicle 100 comprises a vehicle body 1, a plurality of main wheels 2 mounted on the vehicle body 1, two telescopic mechanisms 3 mounted on the vehicle body 1, a plurality of guide wheel seats 4 mounted on the vehicle body 1 and respectively adjacent to the plurality of main wheels 2, and two reversing wheel modules 5 mounted on the vehicle body 1, but the present application is not limited thereto.

[0030] For example, in other embodiments not shown in the present application, the number of the telescopic mechanisms 3 of the transport vehicle 100 can be at least one, and the number of the reversing wheel modules 5 of the transport vehicle 100 can also be at least one; or, the plurality of guide wheel seats 4 can be omitted or replaced with other components according to actual needs; or, the telescopic mechanism 3 can be used alone (e.g., sold) or used in combination with other components.

[0031] In this embodiment, the vehicle body 1 is an integral structure (or a monolithic structure), and the vehicle body 1 includes a chassis 11, two partitions 12 disposed on the chassis 11, and a plurality of support columns 13 disposed on the chassis 11. The two partitions 12 are disposed at intervals and are substantially vertically connected to the chassis 11; and the plurality of support columns 13 are also disposed at intervals and are substantially vertically connected to the chassis, and are respectively located at multiple corners of the chassis 11.

[0032] The plurality of main wheels 2 are mounted on opposite sides of the vehicle body 1 (e.g., the chassis 11) to form two rows. In this embodiment, the moving direction of the plurality of main wheels 2 is defined as a first direction D1, two main wheels 2 are respectively disposed on opposite sides of each partition 12, and the rotation axis of each main wheel 2 is parallel to a second direction D2 perpendicular to the first direction D1, and a support column 13 is disposed on opposite outer sides of each row of main wheels 2 (along the first direction D1). In addition, for ease of description, the transport vehicle 100 is defined in this embodiment as a height direction H perpendicular to the first direction D1 and the second direction D2.

[0033] like Figures 1 to 3 As shown, the two telescopic mechanisms 3 are fixed to the chassis 11 of the vehicle body 1 and are located between the two partitions 12, and the two telescopic mechanisms 3 are respectively adjacent to the two partitions 12. In this embodiment, since the two telescopic mechanisms 3 adopt substantially the same structure, for the sake of convenience, only a single telescopic mechanism 3 is described 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 telescopic mechanisms 3 may be slightly different.

[0034] In this embodiment, the telescopic mechanism 3 includes a chain seat 31 and a fork arm module 32 telescopically mounted on the chain seat 31. The chain seat 31 includes a frame 311 fixed to the vehicle body 1, two sprockets 312 pivotally connected to the frame 311, a plurality of guide blocks 313 fixed to the frame 311, and a chain 314 disposed around the two sprockets 312.

[0035] In more detail, the bottom of the frame 311 is fixed to the chassis 11, and the frame 311 is in a groove shape with the notch located at the top of the frame 311. The two sprockets 312 are spaced apart from each other and are located inside the frame 311, and the plurality of guide blocks 313 are located between the two sprockets 312, and the plurality of guide blocks 313 define an upper guide path P1 and a lower guide path P2 spaced apart from each other.

[0036] Specifically, the number of the plurality of guide blocks 313 is three in this embodiment and includes an upper guide block 3131 and two lower guide blocks 3132 located below the upper guide block 3131. The top edge of the upper guide block 3131 defines the upper guide path P1, and the two lower guide blocks 3132 correspond to the two end portions of the upper guide block 3131, so that the bottom edge of the upper guide block 3131 and the top edges of the two lower guide blocks 3132 can jointly define the lower guide path P2.

[0037] Furthermore, the chain 314 is in a closed loop shape, and the chain 314 is disposed around the two sprockets 312 and arranged along the upper guide path P1 and the lower guide path P2. In other words, the two sprockets 312 and the upper guide block 3131 are located within the area surrounded by the chain 314, and the two lower guide blocks 3132 are located outside the area surrounded by the chain 314, but the present application is not limited thereto.

[0038] The fork arm module 32 includes a rack 321 and a telescopic fork arm 322 driven by the rack 321, and the rack 321 is engaged with the portion of the chain 314 located on the upper guide path P1. Specifically, when one of the sprockets 312 is driven by a power source (not shown), the sprocket 312 will drive the other sprocket 312 to rotate synchronously through the chain 314. Therefore, when the rack 321 is driven by the chain 314, the rack 321 can drive the telescopic fork arm 322 to extend and retract along the second direction D2.

[0039] As described above, the transport vehicle 100 (or the telescopic mechanism 3) in this embodiment can realize the independent assembly of the chain seat 31 and the fork arm module 32 by modularizing the chain seat 31 and the fork arm module 32, thereby modularizing the structure of the transport vehicle 100, which is conducive to reducing the cost of producing the transport vehicle 100 and shortening its assembly process. For example, the chain 314 of the chain seat 31 can be adjusted and its tightness can be confirmed before being installed to the vehicle body 1, so that the fork arm module 32 can be installed to the vehicle body 1 only by engaging the rack 321 with the chain 314 of the chain seat 31, without adjusting and confirming the tightness of the chain 314.

[0040] like Figure 1 ,and Figures 4 to 7 As shown, the plurality of guide wheel seats 4 are respectively fixed to the outer sides of the plurality of support columns 13; that is, in any row of the main wheels 2 and the two corresponding support columns 13 and the two guide wheel seats 4, the two guide wheel seats 4 are respectively located at the opposite outer sides of the two support columns 13. In this embodiment, a cutout 131 is formed at the bottom of each support column 13, and a portion of each guide wheel seat 4 is embedded in the cutout 131 of the corresponding support column 13.

[0041] Specifically, each of the support columns 13 has a first bearing surface 132 and a second bearing surface 133 perpendicular to the first bearing surface 132, and the first bearing surface 132 is a partial inner wall of the slot 131, and the second bearing surface 133 falls outside the slot 131 and is located on the inner side of the support column 13. Furthermore, in each of the support columns 13, the first bearing surface 132 is preferably perpendicular to the first direction D1, and the second bearing surface 133 is preferably perpendicular to the second direction D2, but the present application is not limited thereto.

[0042] In this embodiment, each of the guide wheel seats 4 is fixed to the first bearing surface 132 of the corresponding support column 13 along the first direction D1, so that when each of the guide wheel seats 4 is impacted, the corresponding support column 13 can effectively provide support to avoid damage to the guide wheel seat 4. In addition, in order to enable each of the guide wheel seats 4 and the corresponding support column 13 to have a better operating effect, the guide wheel seat 4 preferably has at least some of the following features, but the present application is not limited thereto.

[0043] It should be noted that, since the plurality of guide wheel seats 4 in this embodiment adopts substantially the same structure, for the sake of convenience, only a single guide wheel seat 4 and the corresponding support column 13 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 plurality of guide wheel seats 4 may be slightly different.

[0044] In this embodiment, the guide wheel seat 4 includes a crossbeam 41 and a plurality of guide wheels 42 pivotally connected to the crossbeam 41. The length direction of the crossbeam 41 is parallel to the second direction D2, and the arrangement direction of the plurality of guide wheels 42 is also parallel to the second direction D2, and the rotation axis of each guide wheel 42 is parallel to the height direction H.

[0045] In more detail, the cross beam 41 is embedded in the slot 131 of the corresponding support column 13, and the cross beam 41 has two side surfaces 411, a bottom surface 412 connected to the two side surfaces 411, and a top surface 413 connected to the two side surfaces 411. The cross beam 41 abuts against the first supporting surface 132 of the corresponding support column 13 along the first direction D1 with one of the side surfaces 411, and the plurality of guide wheels 42 are pivotally connected to the bottom surface 412 of the cross beam 41.

[0046] Furthermore, the top surface 413 of the cross beam 41 has two step surfaces 4131 and a stepped surface 4132 connecting the two step surfaces 4131. Among them, one of the step surfaces 4131 of the cross beam 41 is located in the cut groove 131, and the cross beam 41 abuts against the second bearing surface 133 of the corresponding support column 13 along the second direction D2 with the stepped surface 4132, so that the corresponding support column 13 can further provide support to improve the service life of the guide wheel seat 4.

[0047] like Figure 1 , Figure 8 ,and Fig. 9 As shown, the two reversing wheel modules 5 are fixed to the outermost side of the chassis 11 of the vehicle body 1, and each of the reversing wheel modules 5 is respectively adjacent to the two guide wheel seats 4. In this embodiment, since the two reversing wheel modules 5 adopt substantially the same structure, for the sake of convenience, only a single reversing wheel module 5 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 reversing wheel modules 5 may be slightly different.

[0048] Furthermore, the reversing wheel module 5 in this embodiment includes a bracket 51 fixed to the vehicle body 1, two running wheels 52 installed on the bracket 51, four bearing seats 53 installed on the bracket 51, four bearings 54 respectively fixed to the four bearing seats 53, and a plurality of retaining rings 55 (e.g., C-shaped retaining rings) installed on the four bearing seats 53.

[0049] The bracket 51 has two reversing wheel seats 511 respectively located at two ends thereof, and the two running wheels 52 are respectively arranged in the two reversing wheel seats 511. The rotation axis of each running wheel 52 is parallel to the first direction D1, and the moving direction of the two running wheels 52 is parallel to the second direction D2.

[0050] The four bearing seats 53 are each a single-piece structure, and two bearing seats 53 are respectively locked on opposite outer sides of each reversing wheel seat 511. Each bearing seat 53 has a plurality of screw holes 531, and preferably at least one screw hole 531 of each bearing seat 53 is elongated and parallel to the second direction D2, so as to facilitate fine adjustment of the bearing seat 53 between the corresponding reversing wheel seats 511.

[0051] Furthermore, the four bearings 54 are respectively fixed to the four bearing seats 53, and the wheel axle of each running wheel 52 is installed with two bearings 54. Among them, each bearing seat 53 is installed with two retaining rings 55, which fix the corresponding bearings 54, but the present application is not limited to this. For example, in other embodiments not shown in the present application, the plurality of retaining rings 55 can be omitted or replaced with other components according to actual needs.

[0052] As described above, each of the bearing seats 53 in this embodiment adopts a single-piece structure to simplify the overall structure of the reversing wheel module 5, thereby shortening the assembly time of the transport vehicle 100 and reducing its production cost.

[0053] Technical effects of the embodiments of the present application

[0054] In summary, the transport vehicle and its telescopic mechanism disclosed in the embodiment of the present application realizes the independent assembly of the chain seat and the fork arm module through the modularization of the chain seat and the fork arm module, thereby modularizing the structure of the transport vehicle, which is conducive to reducing the cost of producing the transport vehicle and shortening its assembly process. For example, the chain of the chain seat can be adjusted and its tightness can be confirmed before being installed to the vehicle body, so that the fork arm module can be installed to the vehicle body only by engaging the rack with the chain of the chain seat, without adjusting and confirming the tightness of the chain.

[0055] 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; a plurality of main wheels mounted on opposite sides of the vehicle body so as to be arranged in two rows; and At least one telescopic mechanism, comprising: A chain seat, comprising: a frame body, fixed to the vehicle body; two sprockets, pivotally connected to the frame; A plurality of guide blocks are fixed to the frame and located between the two sprockets; wherein the plurality of guide blocks define an upper guide path and a lower guide path spaced apart from each other; and a chain in a closed loop; wherein the chain is disposed around the two sprockets and along the upper guide path and the lower guide path; and A fork arm module is fixed to the vehicle body and telescopically mounted on the chain seat; wherein the fork arm module includes a rack and a telescopic fork arm linked to the rack, and the rack is engaged with the portion of the chain located on the upper guide path.

2. The transport vehicle according to claim 1, characterized in that: The moving directions of the multiple main wheels are defined as a first direction, the vehicle body includes a plurality of support columns, each of the support columns has a first bearing surface, and one support column is arranged on the opposite outer sides of each row of the main wheels; wherein the transport vehicle further includes a plurality of guide wheel seats respectively fixed to the multiple support columns, and each of the guide wheel seats is fixed to the first bearing surface of the corresponding support column along the first direction.

3. The transport vehicle according to claim 2, characterized in that: In any row of the main wheels and the two corresponding support columns and two guide wheel seats, the two guide wheel seats are respectively located on opposite outer sides of the two support columns, and the first bearing surface of each support column is perpendicular to the first direction.

4. The transport vehicle according to claim 2, characterized in that: Each of the guide wheel seats comprises: a crossbeam having two side surfaces and a bottom surface connected to the two side surfaces, wherein one of the side surfaces of the crossbeam abuts against the first bearing surface of the corresponding support column along the first direction; and A plurality of guide wheels are pivotally connected to the bottom surface of the cross beam.

5. The transport vehicle according to claim 4, characterized in that: Each of the support columns has a second bearing surface perpendicular to the first bearing surface; in each of the guide wheel seats, the crossbeam has a top surface connected to the two side surfaces, which has two step surfaces and a ladder surface connecting the two step surfaces, and the crossbeam rests against the second bearing surface of the corresponding support column along a second direction perpendicular to the first direction with the ladder surface.

6. The transport vehicle according to claim 4, characterized in that: A groove is formed at the bottom of each support column, and the first bearing surface is a partial inner wall of the groove; wherein, a partial cross beam of each guide wheel seat is embedded in the groove of the corresponding support column.

7. The transport vehicle according to claim 1, characterized in that: The moving directions of the plurality of main wheels define a first direction, and the transport vehicle further comprises at least one reversing wheel module, which comprises: A bracket, fixed to the vehicle body and having two reversing wheel seats; Two running wheels are respectively arranged in the two reversing wheel seats; wherein the moving direction of the two running wheels is defined as a second direction perpendicular to the first direction; four bearing seats are each a single-piece structure, and two bearing seats are respectively locked on the opposite outer sides of each reversing wheel seat; and Four bearings are respectively fixed on the four bearing seats, and the axle of each running wheel is equipped with two bearings.

8. The transport vehicle according to claim 7, characterized in that: Each of the bearing seats has a plurality of screw holes, and at least one of the screw holes of each of the bearing seats is elongated and parallel to the second direction.

9. The transport vehicle according to claim 7, characterized in that: At least one of the reversing wheel modules further includes a plurality of retaining rings, and each of the bearing seats is equipped with two retaining rings that fix the corresponding bearings.

10. A telescopic mechanism of a transport vehicle, characterized in that: The telescopic mechanism of the transport vehicle comprises: A chain seat, comprising: a frame; two sprockets, pivotally connected to the frame; A plurality of guide blocks are fixed to the frame and located between the two sprockets; wherein the plurality of guide blocks define an upper guide path and a lower guide path spaced apart from each other; and a chain in a closed loop; wherein the chain is disposed around the two sprockets and along the upper guide path and the lower guide path; and A fork arm module is telescopically mounted on the chain seat; wherein the fork arm module includes a rack and a telescopic fork arm linked to the rack, and the rack is engaged with the portion of the chain located on the upper guide path.

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