Vehicle carrier

Abstract

The vehicle carrier comprises a carrier body and a pull rod, the carrier body comprises two carrying units, the two carrying units are configured to be of a split structure, and each carrying unit comprises a frame body; the pull rod stretches across the two frame bodies, is in sliding connection with the two frame bodies and is used for guiding the movement of the two carrying units. The pull rod is arranged on the two frame bodies, so that the pull rod can play a role in guiding and supporting the two frame bodies, on one hand, the consistency of the directions of the two carrying units during movement can be ensured, on the other hand, the frame bodies in the two carrying units can support each other, and the structures of front and rear driven wheel sets and side face guide wheel sets can be omitted; therefore, a walking system of the carrying unit is simplified, and the effect of reducing cost is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle handling, and in particular relates to a vehicle handling device. Background Technology

[0002] With the increasing popularity of automated parking systems in China, highly automated planar moving-type automated parking systems are being adopted more and more in the market due to their convenient parking and fast vehicle retrieval. Vehicle handling units are one of the key components in planar moving-type automated parking systems.

[0003] Among vehicle transporters, the split-type transporter is a commonly used structure in the market. Its main structural feature is that two separate transport units are set up, one for transporting the front and one for transporting the rear wheels of the vehicle. The two transport units are connected by a cable such as a cable chain or swing arm. Each transport unit has an independent travel system and clamping arm system, allowing the vehicle transporter to adjust the distance between the two transport units according to the different wheelbases of the vehicle. Each transport unit in the vehicle transporter has its own travel system. Because the vehicle transporter needs to bear the entire weight of the vehicle during operation, the travel system of each transport unit typically includes front and rear driven wheel sets and side guide wheel sets to improve the overall load-bearing capacity of the transport unit, thereby increasing the cost of the vehicle transporter. Utility Model Content

[0004] In view of this, it is necessary to provide a vehicle transporter that simplifies the walking system and has a low cost.

[0005] A vehicle transporter, comprising:

[0006] The main body of the transporter includes two transport units, and the two robotic arms are configured as a split structure, wherein each robotic arm includes a frame body;

[0007] A pull rod is provided across the two frame bodies and is slidably connected to each of the two frame bodies, and is used to guide the movement of the two transport units.

[0008] Understandably, by utilizing the sliding connection between the tie rod and the two frame bodies, the tie rod can provide guidance and support to the two frame bodies. This ensures the consistency of the direction of movement of the two transport units and allows the frame bodies in the two transport units to support each other. This eliminates the need for the front and rear driven wheel sets and the side guide wheel sets, simplifying the travel system of the transport unit and reducing costs.

[0009] In one embodiment, each of the frame bodies is fixedly mounted with a sliding connector;

[0010] The pull rods are respectively installed through the two sliding connectors and are slidably connected to the two sliding connectors respectively.

[0011] In one embodiment, the vehicle transporter further includes two locking mechanisms, each corresponding to one of the two frame bodies. The locking mechanisms are installed on the corresponding frame bodies and can act on the part of the pull rod located on the corresponding frame body to lock / unlock the pull rod to the corresponding frame body.

[0012] When the two locking mechanisms lock the pull rods onto the corresponding frame bodies, the distance between the two transport units is locked.

[0013] It is understandable that the locking mechanism is used to mechanically lock the pull rod to lock the distance between the two transport units. This ensures the synchronization of the movement of the two transport units and prevents the vehicle tires from slipping off the robotic arm when the vehicle transporter is transporting the vehicle. This improves the transport efficiency of the vehicle transporter and reduces costs.

[0014] In one embodiment, the pull rod has a plurality of fixing holes sequentially formed along its length;

[0015] The locking mechanism includes a sprocket, a lock head, and a drive assembly. The sprocket is rotatably mounted on the frame, and the sprocket teeth on the sprocket can engage with the fixing hole.

[0016] The lock head is connected to the drive assembly, and the lock head can enter the cavity between two adjacent sprocket teeth on the sprocket under the drive assembly, so as to circumferentially limit the sprocket to the pull rod and lock the pull rod.

[0017] Understandably, by utilizing the snap-fit ​​between the sprocket teeth on the sprocket and the fixing hole on the pull rod, the vehicle transporter can control the locking of the pull rod on the frame body simply by controlling the opening / closing of the drive component, thus automating the control of the distance between the two transport units.

[0018] In one embodiment, the drive assembly includes a telescopic drive member and a push rod, and the lock head is drive-connected to the telescopic rod of the telescopic drive member via the push rod;

[0019] The push rod is capable of telescopic movement relative to the horizontal center line of the sprocket under the drive of the telescopic drive member.

[0020] Understandably, by using the telescopic drive to propel the push rod, the lock head can adaptively adjust relative to the sprocket under the drive of the push rod. This ensures that the lock head can enter the cavity enclosed between two adjacent sprocket teeth and lock the sprocket circumferentially.

[0021] In one embodiment, the drive assembly further includes an elastic element mounted between the push rod and the lock head, and the push rod is capable of pushing the lock head toward the sprocket via the elastic element.

[0022] It is understandable that by utilizing the elastic deformation of the elastic element, the movement of the telescopic drive component toward the sprocket can be buffered, preventing damage to the telescopic drive component due to obstruction.

[0023] In one embodiment, the lock head includes a limiting rod, and the lock head can circumferentially limit the sprocket to the pull rod via the limiting rod;

[0024] The frame is fixedly mounted with a sprocket holder, the sprocket is rotatably mounted in the sprocket holder, the sprocket holder has a slot, the slot communicates with the cavity; and when the limiting rod limits the sprocket circumferentially to the pull rod, the limiting rod can engage with the slot.

[0025] Understandably, by utilizing the snap-fit ​​between the limiting rod and the slot on the sprocket fixing bracket, the sprocket fixing bracket can provide support for the limiting rod to circumferentially limit the sprocket, thus ensuring the stability of the lock head when locking the sprocket.

[0026] In one embodiment, the robotic arm further includes a walking wheel mechanism and a gripping arm mechanism, both of which are mounted on the frame.

[0027] The clamping arm mechanism includes four robotic arms, with two robotic arms forming a group, and the two groups of robotic arms are used to clamp the vehicle tires respectively.

[0028] The walking wheel mechanism includes two walking wheel sets, each of which is positioned between the two robotic arms in each set of robotic arms.

[0029] In one embodiment, the walking wheel mechanism further includes a walking wheel drive assembly, which is disposed between the two walking wheel sets and is respectively connected to the two walking wheel sets in a transmission manner;

[0030] The clamping arm mechanism further includes two clamping arm drive assemblies, which are disposed on the two outer sides of the walking wheel drive assembly and are respectively connected to the two robotic arm clamping arms located on the same side of the walking wheel assembly.

[0031] It is understandable that by staggering the arrangement of the walking wheel drive assembly and the gripper arm drive assembly, the arrangement of the walking wheel drive assembly and the gripper arm drive assembly does not affect each other in the height direction of the frame, thus reducing the overall height of the robot.

[0032] In one embodiment, the robotic arm further includes a control module and a shock absorption mechanism. The control module is mounted on the frame via the shock absorption mechanism and is electrically connected to the walking wheel mechanism and the clamping arm mechanism, respectively.

[0033] The shock absorption mechanism can drive the control module to adjust its position relative to the frame body in the height direction.

[0034] It is understandable that using a shock-absorbing mechanism to dampen the assembly of the control module on the frame can improve the stability of the electrical connection between the control module and the walking wheel mechanism and the clamping arm mechanism, thereby ensuring the stability and control accuracy of the robot during operation.

[0035] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0036] The vehicle transporter claimed in this application utilizes a sliding connection between a tie rod and two frame bodies, enabling the tie rod to provide guidance and support to the two frame bodies. This ensures the consistency of the movement direction of the two transport units and allows the frame bodies in the two transport units to support each other, thereby eliminating the need for front and rear driven wheel sets and side guide wheel sets, simplifying the travel system of the transport unit and reducing costs. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a structural schematic diagram of the vehicle transporter provided in this application.

[0039] Figure 2 This is a partial structural diagram of the vehicle transporter provided in this application, in which the robotic arm is in a folded state.

[0040] Figure 3 This is a partial structural diagram of the vehicle transporter provided in this application, in which the robotic arm is in a working state.

[0041] Figure 4 This is a partial structural diagram of the walking wheel mechanism assembled on the frame body in this application.

[0042] Figure 5 This is a partial structural diagram of the clamping arm mechanism in this application.

[0043] Figure 6 This is a partial sectional view of the robotic arm in this application being assembled on the frame.

[0044] Figure 7 This is a partial structural diagram of the locking mechanism and tie rod assembled on the frame body in this application.

[0045] Figure 8 This is a partial structural diagram of the tie rod being assembled on the frame via a sliding connector in this application.

[0046] Figure 9 This is a schematic diagram of the structure when the sliding connector and the tie rod are in sliding fit in this application.

[0047] Figure 10 This is a schematic diagram of the locking mechanism in this application.

[0048] Figure 11 This is a top view of the control module in this application assembled on the shock absorption mechanism.

[0049] Figure 12 This is a schematic diagram of the structure of the control module in this application when it is installed on the frame through a shock absorption mechanism.

[0050] Reference numerals: 100, Vehicle transporter; 10, Transport unit; 101, Tapered roller bearing; 102, Surface bearing; 11, Frame; 12, Wheel mechanism; 121, Wheelset; 1211, Wheel; 122, Wheel drive assembly; 1221, Motor; 1222, Reducer; 1223, Drive shaft; 1224, Drive gear; 13, Gripper mechanism; 131, Manipulator gripper arm; 1311, Swing seat; 13111, Arc tooth; 132, Gripper drive assembly; 1321, Gripper motor; 1322, Sprocket and chain; 1323, Worm gear; 133, Vertical 14. Shaft; 15. Control module; 16. Shock absorption mechanism; 17. Mounting bracket; 18. Screw; 19. Spring; 10. Nut; 11. Washer; 21. Pull rod; 211. Fixing hole; 22. Sliding connector; 30. Locking mechanism; 301. Pin; 302. Fixing screw; 303. Sliding bearing; 31. Sprocket; 311. Sprocket tooth; 312. Cavity; 313. Sprocket fixing bracket; 32. Lock head; 321. Limiting rod; 33. Drive assembly; 331. Telescopic drive component; 3311. Telescopic rod; 3312. Electric push rod fixing bracket; 332. Push rod; 333. Elastic element. Detailed Implementation

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0054] The vehicle transporter 100 claimed in this application specifically refers to an AGV (Automated Guided Vehicle) used in automated parking garages for storing and retrieving cars.

[0055] like Figure 1 As shown, the vehicle transporter 100 provided in this application includes a transporter body and a pull rod 21. The transporter body includes two transport units 10, which are configured as separate units. Each transport unit 10 includes a frame body 11. The pull rod 21 spans the two frame bodies 11 and is slidably connected to both frame bodies 11, guiding the movement of the two transport units 10. Here, the movement of the two transport units 10 specifically refers to their synchronous movement, opposite movement, or reciprocal movement. It should be noted that the two transport units 10 in the vehicle transporter 100 of this application are used to clamp the front and rear wheels of the vehicle to jointly complete the transport of the vehicle. Of course, the working principle of how the two transport units 10 cooperate and move synchronously can adopt the conventional method of existing vehicle transporters, which will not be elaborated here.

[0056] As can be seen from the above, the vehicle transporter 100 claimed in this application utilizes the sliding connection between the pull rod 21 and the two frame bodies 11, so that the pull rod 21 can play a guiding and supporting role for the two frame bodies 11. This ensures the consistency of the direction of movement of the two transport units 10, and also allows the frame bodies 11 in the two transport units 10 to support each other, thereby eliminating the need for the front and rear driven wheel sets and the side guide wheel sets, simplifying the walking system of the transport unit 10 and reducing costs.

[0057] like Figure 2 , Figure 3 As shown, in one embodiment, the handling unit 10 further includes a traveling wheel mechanism 12 and a clamping arm mechanism 13, both of which are mounted on the frame 11. The clamping arm mechanism 13 includes four robotic arms 131, with two robotic arms 131 forming a group, and the two groups of robotic arms 131 are used to clamp the vehicle wheels respectively. The traveling wheel mechanism 12 includes two traveling wheel sets 121, each traveling wheel set 121 positioned between the two robotic arms 131 in each group of robotic arms 131. That is, the traveling wheel sets 121 of the traveling wheel mechanism 12 of the handling unit 10 travel on the traveling surface, and the two groups of robotic arms 131 of the clamping arm mechanism 13 clamp the two front wheels or the two rear wheels of the vehicle respectively. Here, each traveling wheel set 121 contains two traveling wheels 1211. It is understood that in other embodiments, each traveling wheel set 121 may contain one, three, or even more traveling wheels 1211, which will not be elaborated upon here.

[0058] like Figure 6 As shown, in this embodiment, each robotic arm 131 is rotatably mounted on the frame 11 via a vertical pivot 133, such that each set of robotic arms 131 for gripping car wheels has a folded state against both sides of the frame 11 and a working state perpendicular to the sides of the frame 11. Here, the vertical pivot 133 passes through the swing seat 1311 of the robotic arm 131. It should be noted that when the robotic arm 131 is in the folded state, the length of the handling unit 10 does not exceed 1900mm, the width does not exceed 1015mm, and the height does not exceed 95mm, allowing the handling unit 10 to move freely between the flush walking surface and the parking surface for parking vehicles in the automated parking garage.

[0059] like Figure 6 As shown, in one embodiment, the portion of the vertical rotating shaft 133 passing downward through the robotic arm 131 is rotatably connected to the frame 11 via a tapered roller bearing 101, and the portion of the vertical rotating shaft 133 passing upward through the robotic arm 131 is rotatably connected to the frame 11 via a planar bearing 102. This utilizes the structural characteristics of the tapered roller bearing 101 and the planar bearing 102, ensuring not only the load-bearing capacity of the swing seat 1311 when mounted on the frame 11, but also reducing the overall thickness of the swing seat 1311 when assembled on the frame 11. Here, the planar bearing 102 is a bronze bearing. It is understood that in other embodiments, the planar bearing 102 may also be a copper bearing, a rolling bearing, etc., which will not be elaborated upon here. It should be noted that, since the tapered roller bearing 101 has a large load-bearing capacity, it can meet the load-bearing capacity of the assembly between the vertical shaft 133 and the frame body 11; while the height dimension of the flat bearing 102 is smaller than that of the tapered roller bearing 101, which can reduce the overall thickness of the connection part.

[0060] like Figures 2 to 4As shown, in one embodiment, the walking wheel mechanism 12 further includes a walking wheel drive assembly 122, which is disposed between the two walking wheel sets 121 and is connected to the two walking wheel sets 121 in a transmission manner, so that when the walking wheel mechanism 12 is working, the walking wheel drive assembly 122 can be used to control the walking of the two walking wheel sets 121 on the walking surface. Here, the walking wheel drive assembly 122 includes a walking motor 1221, a walking reducer 1222, a drive shaft 1223, and two drive gears 1224. The walking motor 1221 and the drive shaft 1223 are arranged side by side and are connected to the drive shaft 1223 through the walking reducer 1222. The two drive gears 1224 are installed at both ends of the drive shaft 1223. Each drive gear 1224 meshes with two driven gears (not shown) through gear transmission. Each driven gear is connected to each walking wheel 1211, so that when the walking wheel drive assembly 122 is working, one walking motor 1221 can realize the motion control of two walking wheel sets 121 under the transmission of the drive shaft 1223, the drive gears 1224 and the driven gears.

[0061] like Figure 2 , Figure 3 As shown, in one embodiment, the clamping arm mechanism 13 further includes two clamping arm drive assemblies 132. The two clamping arm drive assemblies 132 are disposed on the two outer sides of the walking wheel drive assembly 122 and are respectively connected to the two robotic arm clamping arms 131 located on the same side of the walking wheel assembly 121. That is, in this embodiment, the clamping arm drive assembly 132 and the walking wheel drive assembly 122 are staggered on the frame 11, so that the arrangement of the walking wheel drive assembly 122 and the clamping arm drive assembly 132 does not affect each other in the height direction of the frame 11, thereby reducing the overall height of the handling unit 10. Here, the height space required for the transport unit 10 to move on the walking surface is small, not exceeding 95mm. Thus, when the vehicle transporter 100 is applied in a multi-level parking garage, because the overall height of the transport unit 10 is higher than the ground clearance of the vehicle chassis, the transport unit 10 can directly enter the parking surface of the multi-level parking garage from the walking surface. Therefore, the multi-level parking garage can set the walking surface and the parking surface flush, which can reduce the manufacturing cost of parking spaces in the multi-level parking garage and reduce the manufacturing difficulty and cost of corresponding supporting components.

[0062] like Figure 5As shown, in one embodiment, the gripper drive assembly 132 includes a gripper motor 1321, a sprocket and chain 1322, and two worm gears 1323. The gripper motor 1321 is connected to the two worm gears 1323 via the sprocket and chain 1322. Each worm gear 1323 meshes with the arc-shaped teeth 13111 on the swing seat 1311 of the robotic gripper arm 131. This allows the gripper motor 1321 to control the linkage between the two corresponding robotic grippers 131 under the transmission of the sprocket and chain 1322 and the two worm gears 1323 when the gripper drive assembly 132 is working. This controls the robotic grippers 131 to switch between a folded state and a working state on the frame 11. Here, the gripper motor 1321 is arranged along the travel direction of the transport unit 10.

[0063] like Figure 2 , Figure 3 , Figure 11 , Figure 12 As shown, in one embodiment, the transport unit 10 further includes a control module 14 and a shock-absorbing mechanism 15. The control module 14 is mounted on the frame 11 via the shock-absorbing mechanism 15 and is electrically connected to the traveling wheel mechanism 12 and the clamping arm mechanism 13, respectively. The shock-absorbing mechanism 15 can adjust the position of the control module 14 relative to the frame 11 in the height direction. In other words, the transport unit 10 can use the control module 14 to control the specific operation of the traveling wheel mechanism 12 and the clamping arm mechanism 13. Furthermore, when the transport unit 10 is moving, the shock-absorbing mechanism 15 can dampen the vibration of the control module 14 mounted on the frame 11, thus improving the stability of the electrical connection between the control module 14 and the traveling wheel mechanism 12 and the clamping arm mechanism 13, thereby ensuring the stability and control accuracy of the transport unit 10 during operation. Specifically, the control module 14 is electrically connected to the traveling motor 1221 in the traveling wheel mechanism 12 and the clamping arm motor 1321 in the clamping arm mechanism 13, respectively.

[0064] like Figure 11 , Figure 12As shown, in one embodiment, the shock absorption mechanism 15 includes a mounting bracket 151 and multiple connecting components. The mounting bracket 151 is mounted on the frame 11 via the multiple connecting components to support the control module 14. Each connecting component includes a screw 152, a spring 153, a nut 154, and a washer 155. The screw 152 is fixed to the frame 11, and the portion of the screw 152 passing through the mounting bracket 151 is screwed to the nut 154. The spring 153 is fitted onto the screw 152 and abuts against the washer 155 and the frame 11, respectively. This allows the connecting component to provide elastic support to the mounting bracket 151 using the spring 153. Thus, during the movement of the transport unit 10, if the frame 11 vibrates, the control module 14, mounted on the mounting bracket 151, vibrates along with it. During this process, the spring 153 can buffer and absorb the vibration of the mounting bracket 151.

[0065] like Figure 2 , Figure 3 , Figure 8 , Figure 9 As shown, in one embodiment, each frame body 11 is fixedly equipped with a sliding connector 22; a pull rod 21 is respectively disposed through two sliding connectors 22 and is slidably connected to the two sliding connectors 22 respectively. That is, the pull rod 21 can be slidably connected to the frame body 11 through the sliding connectors 22. Here, the sliding connector 22 is fixed to the frame body 11, and the sliding connector 22 is slidably engaged with the pull rod 21. Preferably, the sliding connector 22 can be a sliding guide rail or a sliding bearing.

[0066] like Figure 1 As shown, in one embodiment, the vehicle transporter 100 further includes two locking mechanisms 30, each corresponding to one of the two frame bodies 11. The locking mechanisms 30 are mounted on the corresponding frame bodies 11 and can act on the portion of the pull rod 21 located on the corresponding frame body 11 to lock / unlock the pull rod 21 onto the corresponding frame body 11. When the two locking mechanisms 30 lock the pull rod 21 onto the corresponding frame body 11, the distance between the two transport units 10 is locked. This ensures the synchronization of the movement of the two transport units 10, preventing the vehicle tires from slipping off the robotic arm when the vehicle transporter 100 is transporting a vehicle, thereby improving the transport efficiency of the vehicle transporter 100 and reducing costs. Specifically, the locking mechanism 30 can act on the portion of the pull rod 21 that extends from the sliding connector 22 to lock the pull rod 21 onto the frame body 11.

[0067] It should be noted that, since the locking mechanism 30 and the corresponding parts of the pull rod 21 for locking after the distance between the two transport units 10 in the vehicle transporter 100 of this application are all located on the frame body 11, they do not occupy the space between the two transport units 10. This allows the minimum distance between the two transport units 10 when the vehicle transporter 100 is working, where the two frame bodies 11 of the two transport units 10 are abutting against each other. This allows for a wider range of adjustable distances between the two transport units 10 in the vehicle transporter 100, accommodating a wider range of vehicle models with different wheelbases. Here, the minimum clamping distance between the front and rear wheels of the vehicle transporter 100 when working can reach 1880mm, and the maximum can reach 3400mm.

[0068] like Figure 7 , Figure 8 and Figure 10 As shown, in one embodiment, the pull rod 21 has a plurality of fixing holes 211 sequentially opened along its length; correspondingly, the locking mechanism 30 includes a sprocket 31, a lock head 32, and a drive assembly 33. The sprocket 31 is rotatably mounted on the frame body 11, and the sprocket teeth 311 on the sprocket 31 can engage with the fixing holes 211; the lock head 32 is connected to the drive assembly 33, and the lock head 32 can enter the cavity 312 enclosed between two adjacent sprocket teeth 311 on the sprocket 31 under the drive of the drive assembly 33, for circumferentially limiting the sprocket 31 to the pull rod 21 and locking the pull rod 21. In other words, the locking mechanism 30 can engage with the sprocket teeth 311 on the sprocket 31 and the fixing holes 211 on the pull rod 21 through a circumferentially limiting engagement, thereby controlling the locking / unlocking of the pull rod 21. During this process, only the opening / closing control of the drive assembly 33 is required, thus automating the control of the distance between the two transport units 10. Here, when the sprocket 31 rotates on the frame 11, the sprocket teeth 311 on the sprocket 31 can sequentially engage with the fixing holes 211 on the pull rod 21 along the length of the pull rod 21.

[0069] like Figure 7 , Figure 10As shown, in one embodiment, the lock head 32 includes a limiting rod 321, and the lock head 32 can circumferentially limit the sprocket 31 to the pull rod 21 through the limiting rod 321; correspondingly, a sprocket fixing bracket 313 is fixedly installed on the frame body 11, and the sprocket 31 is rotatably installed in the sprocket fixing bracket 313. The sprocket fixing bracket 313 has a slot (not shown) that communicates with the cavity 312; and when the limiting rod 321 circumferentially limits the sprocket 31 to the pull rod 21, the limiting rod 321 can engage with the slot. In other words, the upper limit rod 321 of the lock head 32 can be driven by the drive assembly 33 to engage in the slot of the sprocket fixing frame 313 and move along the depth direction of the slot until it moves into the upper cavity 312 of the sprocket 31. During this process, the bottom of the slot can be used to limit the movement of the limit rod 321, so that the sprocket fixing frame 313 can provide support for the circumferential limit of the limit rod 321 on the sprocket 31, thus ensuring the stability of the lock head 32 when locking the sprocket 31.

[0070] like Figure 7 , Figure 10 As shown, in one embodiment, the drive assembly 33 includes a telescopic drive member 331 and a push rod 332. The lock head 32 is connected to the telescopic rod 3311 of the telescopic drive member 331 via the push rod 332. When the drive assembly 33 is working, the telescopic drive member 331 can drive the lock head 32 towards the sprocket 31 under the transmission of the push rod 332. During this process, the push rod 332 serves as an extension transition. Here, the telescopic rod 3311 and the push rod 332 can be connected via a pin 301. The telescopic drive member 331 is electrically connected to and controlled by the control module 14. Specifically, the telescopic drive member 331 can be an electric push rod, which can be fixed to the frame 11 via an electric push rod mounting bracket 3312. It is understood that in other embodiments, the telescopic drive member 331 can also be a hydraulic push rod, a telescopic cylinder, etc. It should be noted that the push rod 332 can be slidably mounted on the frame 11 via a sliding bearing 303.

[0071] like Figure 7 , Figure 10As shown, in one embodiment, the drive assembly 33 further includes an elastic element 333, which is installed between the push rod 332 and the lock head 32. The push rod 332 can push the lock head 32 toward the sprocket 31 via the elastic element 333. This utilizes the elastic deformation of the elastic element 333 to buffer the movement of the telescopic drive member 331 toward the sprocket 31, preventing damage to the telescopic drive member 331 due to obstruction. It should be noted that the elastic element 333 is configured as a compression spring. Here, the lock head 32 can be limited to the push rod 332 by a fixing screw 302 passing through the lock head 32 and threadedly connected to the push rod 332. It is understood that in other embodiments, the elastic element 333 can be configured as a rubber sleeve or other elastic accessory capable of providing elastic force.

[0072] like Figure 10 As shown, in this embodiment, the lock head 32 can extend and retract relative to the horizontal center line of the sprocket 31 under the drive of the telescopic drive member 331, so that the lock head 32 can make adaptive adjustments relative to the sprocket 31 under the drive of the push rod 332. Once the upper limit rod 321 of the lock head 32 just abuts against the sprocket tooth 311 of the sprocket 31, when the telescopic rod 3311 continues to drive the push rod 332 to push the lock head 32, the lock head 32 can extend and retract at the front end of the push rod 332 using the elastic member 333. During the operation of the vehicle transporter 100 in transporting the vehicle, or during the operation, if there is a slight movement difference between the two transport units 10, the sprocket 31 will continue to rotate at an angle until the sprocket 31 is locked by the upper limit rod 321 of the lock head 32. This ensures that the deviation range of the distance between the two transport units 10 in the vehicle transporter 100 after adjustment is about 13 mm. The lock head 32 can enter the cavity 312 enclosed between two adjacent sprocket teeth 311 of the sprocket 31 and lock the sprocket 31 circumferentially.

[0073] In summary, when the vehicle transporter 100 of this application retrieves a vehicle, the two transport units 10 can enter the bottom of the target vehicle through their respective walking wheel mechanisms 12. When the clamping arm mechanisms 13 on the two transport units 10 are respectively aligned with the front and rear wheels of the target vehicle, the telescopic drive component 331 of the locking mechanism 30 on each transport unit 10 is activated under the control of the corresponding control module 14. The upper limit rod of the push lock head 32 is engaged in the slot of the sprocket fixing frame 313 and circumferentially locks the sprocket 31. Using action and reaction forces, the sprocket 31 can be locked to the frame body 11 through the sprocket teeth 311, thereby locking the two transport units 10. Afterward, the clamping arm mechanisms 13 on the two transport units 10 can open from the frame body 11 under the control of their respective control modules 14 to clamp the front and rear wheels of the target vehicle. Then, the walking wheel mechanisms 12 on the two transport units 10 are activated again, driving the target vehicle to move together.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A vehicle transporter, characterized in that, The vehicle transporter (100) includes: The main body of the transporter includes two transport units (10), which are configured as a split structure, wherein each transport unit (10) includes a frame body (11). A pull rod (21) is provided across the two frame bodies (11) and is slidably connected to the two frame bodies (11) respectively, for guiding the movement of the two transport units (10); The vehicle transporter (100) also includes two locking mechanisms (30), which correspond one-to-one with the two frame bodies (11). The locking mechanisms (30) are installed on the corresponding frame bodies (11), and the locking mechanisms (30) can act on the part of the pull rod (21) located on the corresponding frame body (11) to lock / unlock the pull rod (21) on the corresponding frame body (11). When the two locking mechanisms (30) lock the pull rod (21) onto the corresponding frame body (11) respectively, the distance between the two transport units (10) is locked.

2. The vehicle transporter according to claim 1, characterized in that, Each of the frame bodies (11) is fixedly mounted with a sliding connector (22); The pull rod (21) is respectively installed through the two sliding connectors (22) and is slidably connected to the two sliding connectors (22).

3. The vehicle transporter according to claim 1, characterized in that, The pull rod (21) has a plurality of fixing holes (211) sequentially opened in the length direction of the pull rod (21); The locking mechanism (30) includes a sprocket (31), a lock head (32), and a drive assembly (33). The sprocket (31) is rotatably mounted on the frame body (11), and the sprocket teeth (311) on the sprocket (31) can engage with the fixing hole (211). The lock head (32) is connected to the drive assembly (33) in a transmission manner, and the lock head (32) can enter the cavity (312) enclosed between two adjacent sprocket teeth (311) on the sprocket (31) under the drive assembly (33) to circumferentially limit the sprocket (31) to the pull rod (21) and lock the pull rod (21).

4. The vehicle transporter according to claim 3, characterized in that, The drive assembly (33) includes a telescopic drive member (331) and a push rod (332), and the lock head (32) is connected to the telescopic rod (3311) of the telescopic drive member (331) via the push rod (332); The push rod (332) is capable of telescopic movement relative to the horizontal center line of the sprocket (31) under the drive of the telescopic drive member (331).

5. The vehicle transporter according to claim 4, characterized in that, The drive assembly (33) also includes an elastic element (333) which is installed between the push rod (332) and the lock head (32), and the push rod (332) can push the lock head (32) toward the sprocket (31) through the elastic element (333).

6. The vehicle transporter according to claim 3, characterized in that, The lock head (32) includes a limiting rod (321), and the lock head (32) can circumferentially limit the sprocket (31) to the pull rod (21) through the limiting rod (321); The frame (11) is fixedly mounted with a sprocket fixing bracket (313), the sprocket (31) is rotatably mounted in the sprocket fixing bracket (313), the sprocket fixing bracket (313) has a slot, the slot is connected to the cavity (312); and when the limiting rod (321) circumferentially limits the sprocket (31) to the pull rod (21), the limiting rod (321) can engage with the slot.

7. The vehicle transporter according to claim 1, characterized in that, The transport unit (10) also includes a walking wheel mechanism (12) and a clamping arm mechanism (13), both of which are mounted on the frame body (11); The clamping arm mechanism (13) includes four robotic arm clamps (131), with two robotic arm clamps (131) forming a group, and the two groups of robotic arm clamps (131) are used to clamp vehicle tires respectively. The walking wheel mechanism (12) includes two walking wheel sets (121), each of the walking wheel sets (121) being positioned between the two robotic arms (131) in each set of robotic arms (131).

8. The vehicle transporter according to claim 7, characterized in that, The walking wheel mechanism (12) further includes a walking wheel drive assembly (122), which is located between the two walking wheel sets (121) and is connected to the two walking wheel sets (121) in a transmission manner. The clamping arm mechanism (13) further includes two clamping arm drive assemblies (132), which are located on the two outer sides of the walking wheel drive assembly (122) and are respectively connected to the two robotic arm clamping arms (131) located on the same side of the walking wheel assembly (121).

9. The vehicle transporter according to claim 7, characterized in that, The transport unit (10) also includes a control module (14) and a shock absorption mechanism (15). The control module (14) is installed on the frame (11) through the shock absorption mechanism (15) and is electrically connected to the walking wheel mechanism (12) and the clamping arm mechanism (13) respectively. The shock absorption mechanism (15) can drive the control module (14) to adjust its position relative to the frame (11) in the height direction.

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