Heavy load shuttle vehicle
By rotating the front baffle and the fixed baffle and through automated control, the problems of items sliding out and pallets getting stuck in heavy-duty four-way shuttle cars are solved, achieving stable and efficient pallet transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHUANGLI LOGISTICS TECHNOLOGY CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-09
AI Technical Summary
Existing heavy-duty four-way shuttles are prone to items sliding off the vehicle when starting or stopping, causing damage or breakage, and trays are also prone to jamming when entering.
The system employs a rotating connection between the front baffle and the fixed baffle, using a torsion spring and a fixing rope to achieve smooth entry and sliding exit of the pallet. The drive structure and controller ensure automated control of the baffle.
This ensures the stability and smooth entry of the pallet within the shuttle, preventing items from sliding out or getting stuck, and improving work efficiency.
Smart Images

Figure CN224336325U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of logistics warehousing and transportation technology, specifically relating to a heavy-duty shuttle vehicle. Background Technology
[0002] Heavy-duty four-way shuttles are devices used in warehousing and logistics systems, primarily for the lateral movement of goods between racks. They can carry heavy loads and offer flexibility in lateral movement, enabling efficient handling of goods and warehousing operations. During operation, items may slip off the shuttle due to inertia when starting or stopping, potentially causing damage or breakage. Therefore, containment devices are necessary to prevent this.
[0003] To this end, document CN222248659U discloses a heavy-duty four-way shuttle for cryogenic applications, comprising a shuttle body, a pallet, and a containment mechanism. Once the pallet is fully inserted into the pallet, two sets of pushers are activated, causing them to push a rack at one end, moving it horizontally. This, in turn, drives a shaft with fixed gears to rotate, causing the containment mechanism to rotate and stand upright at both ends of the pallet, thus limiting the position of the pallet.
[0004] However, the device also has the following drawbacks: when the baffle is in a flat position, it is difficult to align with the upper surface of the pallet, and inevitably, there are gaps between the baffle and the pallet, which can cause the pallet of transported goods to jam easily. Utility Model Content
[0005] To address the aforementioned problems, the purpose of this utility model is to provide a heavy-duty shuttle vehicle. By rotatably connecting the front baffle and the fixed baffle, it ensures that the contact surface of the pallet carrying goods is flat when it enters the shuttle vehicle, overcoming the problem of obstruction during transport. At the same time, after all the pallets have entered the shuttle vehicle, the front baffle, through rotation, cooperates with the fixed baffle to form a fixed space that restricts the pallet from sliding out, ensuring the stability of the goods during shuttle vehicle transport.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A heavy-duty shuttle car includes a shuttle car body and two fixed baffles disposed at two ends of the shuttle car body, a rear baffle and a front baffle disposed between the two fixed baffles and located at the two ends of the fixed baffles;
[0008] The front baffle includes two baffle structures respectively hinged to the ends of the two fixed baffles;
[0009] The baffle structure includes a mounting groove provided on the end of the fixed baffle, a mounting post provided on the mounting groove, a front baffle body rotatably connected to the mounting post, a torsion spring sleeved on the mounting post, one end connected to the mounting groove and the other end connected to the front baffle body, a fixing rope provided on the end of the front baffle body away from the fixed baffle, and a wire roller for winding the portion of the fixing rope away from the fixed baffle.
[0010] The front baffle also includes a drive structure for driving the roller to rotate;
[0011] When the fixing rope is slack, the torsion spring causes the front baffle body and the fixing baffle to have an angle of 60° to 120°.
[0012] When the fixing rope is tensioned, the front baffle body is parallel to the fixing baffle.
[0013] As a further preferred embodiment of the present invention, the baffle structure further includes a channel passing through the fixed baffle and for threading the fixed rope; the driving structure includes a drive motor disposed at one end of one of the fixed baffles and connected to the central axis of the roller, and a connecting rod for connecting the central axes of the two rollers on the two fixed baffles; the two rollers are wound around the fixed rope in the same direction.
[0014] As a further preferred embodiment of the present invention, the front baffle body is provided with: a mounting hole rotatably connected to the mounting post, and a mounting port for accommodating the torsion spring and communicating with the mounting hole.
[0015] As a further preferred embodiment of this utility model, the front baffle body is also provided with a fixing block for fixing the fixing rope.
[0016] As a further preferred embodiment of the present invention, the rear baffle includes two strip grooves respectively disposed on the opposite sides of the two fixed baffles, and a rear baffle body having both ends slidably connected to the two strip grooves respectively.
[0017] As a further preferred embodiment of the present invention, the drive structure further includes a receiver disposed on the connecting rod, a transmitter disposed on the side of the rear baffle body and matched with the receiver, and a controller electrically connected to the transmitter and the receiver; the controller is electrically connected to the drive motor.
[0018] As a further preferred embodiment of the present invention, the rear baffle also includes a limiting rod disposed in the strip groove, and a limiting hole disposed on the rear baffle body for passing through the limiting rod.
[0019] As a further preferred embodiment of the present invention, the rear baffle also includes a reset structure, the reset structure including a threaded rod rotatably disposed in the strip groove, a threaded hole disposed on the rear baffle body and matching the threaded rod, and a second drive motor for driving the threaded rod to rotate.
[0020] As a further preferred embodiment of this utility model, the second drive motor is mounted on the side wall of the shuttle body; the reset structure also includes a channel disposed on the fixed baffle and communicating with the strip groove to allow the threaded rod to pass through, a driven gear disposed on the end of the threaded rod located outside the fixed baffle, and a driving gear disposed on the output end of the second drive motor and meshing with the driven gear.
[0021] As a further preferred embodiment of this utility model, a roller is provided on the side of the rear baffle body to connect with the side wall of the strip groove.
[0022] The beneficial effects of this utility model are:
[0023] The heavy-duty shuttle provided by this utility model ensures that the contact surface of the pallet is flat when the pallet carrying the goods enters the shuttle by rotating the front baffle and the fixed baffle, thus overcoming the problem of transportation jamming. At the same time, after the pallet has entered the shuttle, the front baffle and the fixed baffle cooperate to form a fixed space that restricts the pallet from sliding out by rotating, thus ensuring the stability of the goods during shuttle transportation.
[0024] The heavy-duty shuttle provided by this utility model achieves the purpose of automatically controlling the position of the rear baffle and the rotation angle of the front baffle through the structural cooperation of the front baffle and the rear baffle, which greatly improves the working efficiency of the shuttle. Attached Figure Description
[0025] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.
[0026] Appendix Figure 2 Appendix to this utility model Figure 1 A partial structural diagram.
[0027] Appendix Figure 3 This is a schematic diagram of the structure of this utility model from a top view.
[0028] Appendix Figure 4 This is a partial structural schematic diagram of the present invention from a top-down perspective.
[0029] Figure description: Shuttle body 11, fixed baffle 12, rear baffle 2, front baffle 3;
[0030] 21. Strip groove, 22. Rear baffle body, 23. Limiting rod, 24. Limiting hole, 25. Threaded rod, 26. Threaded hole, 27. Drive motor 28. Channel, 29. Driven gear, 210.
[0031] Mounting slot 31, mounting post 32, front baffle body 33, torsion spring 34, fixing rope 35, wire roller 36, channel 37, drive motor 38, connecting rod 39, receiver 310, transmitter 311, controller 312;
[0032] Mounting hole 331, mounting opening 332, fixing block 333. Detailed Implementation
[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] This embodiment provides a heavy-duty shuttle vehicle, as shown in the attached figure. Figure 1 ~Appendix Figure 3 As shown, it includes a shuttle body 11 and two fixed baffles 12 disposed at two ends of the shuttle body 11, and a rear baffle 2 and a front baffle 3 disposed between the two fixed baffles 12 and at the two ends of the fixed baffles 12.
[0037] The front baffle 3 includes two baffle structures respectively hinged to the ends of the two fixed baffles 12; the baffle structure includes a mounting groove 31 disposed on the end of the fixed baffle 12, a mounting post 32 disposed on the mounting groove 31, a front baffle body 33 rotatably connected to the mounting post 32, a torsion spring 34 sleeved on the mounting post 32, one end connected to the mounting groove 31 and the other end connected to the front baffle body 33, a fixing rope 35 disposed on the end of the front baffle body 33 away from the fixed baffle 12, and a thread roller 36 for winding the portion of the fixing rope 35 away from the fixed baffle 12; the front baffle 3 also includes a drive structure for driving the thread roller 36 to rotate.
[0038] When the fixing rope 35 is slack, the torsion spring 34 makes the front baffle body 33 and the fixing baffle 12 form an angle of 60° to 120°; when the fixing rope 35 is taut, the front baffle body 33 and the fixing baffle 12 are parallel.
[0039] The above structure can basically achieve the following: before the pallet carrying the transported goods enters the upper part of the shuttle body 11, that is, between the two fixed baffles 12, the drive structure is first turned on to make the roller 36 rotate, and then the two fixed ropes 35 are pulled to make the two front baffle bodies 33 rotate until they are parallel to the fixed baffles 12. Then the drive structure is turned off, and the roller 36 remains in the state before it stops rotating. At this time, the opening between the two front baffle bodies 33 is greater than or equal to the distance between the two fixed baffles 12, so that the pallet can easily enter the shuttle body 11. After the pallet is fully inserted into the shuttle body 11, the drive mechanism is restarted to make the roller 36 rotate in the opposite direction, the length of the fixing rope 35 increases, and the torsion spring 34 drives the two front baffle bodies 33 to rotate back to their original positions. At this time, the two front baffle bodies 33 are close to the angle of the vertical fixing baffle 12. At this time, the opening between the two front baffle bodies 33 is not enough for the pallet to enter or exit. Therefore, the left and right sides of the pallet are limited by the two fixing baffles 12, the rear end is limited by the rear baffle 2, and the front end is limited by the front baffle 3, thus ensuring that the pallet is limited and fixed at the upper end of the shuttle body 11, avoiding the problem of items sliding out due to inertia.
[0040] In some preferred embodiments, the baffle structure further includes a channel 37 passing through the fixed baffle 12 and for threading the fixed rope 35; the drive structure includes a drive motor 38 disposed at the end of one of the fixed baffles 12 and connected to the central axis of the roller 36, and a connecting rod 39 for connecting the central axes of the two rollers 36 on the two fixed baffles 12; the two rollers 36 are wound around the fixed rope 35 in the same direction. The front baffle body 33 is provided with: a mounting hole 331 rotatably connected to the mounting post 32, a mounting opening 332 for accommodating the torsion spring 34 and communicating with the mounting hole 331, and a fixing block 333 for fixing the fixed rope 35.
[0041] The aperture of channel 37 is larger than the diameter of the fixed rope 35 to facilitate rope passage. Furthermore, the inner wall of channel 37 can be lined with a drag-reducing material, such as polytetrafluoroethylene (PTFE), to prevent the rope from getting stuck. To ensure the synchronous rotation of the two front baffle bodies 33, a drive motor 38 is used to drive the rollers 36 at the two fixed baffles 12 to rotate synchronously. The connecting rod 39 is located on the outside of the shuttle body 11 and parallel to the rear baffle 2.
[0042] In some preferred embodiments, the rear baffle 2 includes two strip grooves 21 respectively disposed on the opposite sides of the two fixed baffles 12, and a rear baffle body 22 slidably connected at both ends to the two strip grooves 21. The drive structure also includes a receiver 310 disposed on the connecting rod 39, a transmitter 311 disposed on the side of the rear baffle body 22 and matched with the receiver 310, and a controller 312 electrically connected to the transmitter 311 and the receiver 310; the controller 312 is electrically connected to the drive motor 38.
[0043] The purpose of this setup is to determine the distance between transmitter 311 and receiver 310 by receiving the signal emitted by transmitter 311. Before the tray enters the shuttle body 11, the rear baffle 2 moves along the strip groove 21 to the front baffle 3. At this time, the distance between transmitter 311 and receiver 310 is at its maximum. When the maximum value is transmitted to controller 312, controller 312 controls drive motor 38 to tension the fixed rope 35 by roller 36, thereby keeping the two front baffle bodies 33 parallel to the fixed baffle 12. After the tray enters the shuttle body 11, the end of the tray contacts the rear baffle body 22 and pushes the rear baffle body 22 to move together. At this time, the distance between transmitter 311 and receiver 310 is shortened. When the distance between the two is less than or equal to the preset value, controller 312 controls drive motor 38 to rotate roller 36 in the opposite direction to loosen the fixed rope 35. The front baffle body 33 is perpendicular to the fixed baffle 12, thereby restricting the tray from sliding out. It is understood that the transmitter 311, receiver 310, and controller 312 are control components available to those skilled in the art, and their connection and control methods are also existing technologies. Therefore, this embodiment will not elaborate further.
[0044] In some preferred embodiments, the rear baffle 2 further includes a limiting rod 23 disposed within the strip groove 21, and a limiting hole 24 disposed on the rear baffle body 22 for the limiting rod 23 to pass through. Rollers connected to the sidewall of the strip groove 21 are provided on the side of the rear baffle body 22. This helps to improve the stability and smoothness of the movement of the rear baffle body 22.
[0045] As some preferred embodiments, see the appendix. Figure 4 As shown, the rear baffle 2 also includes a reset structure, which includes a threaded rod 25 rotatably disposed in the strip groove 21, a threaded hole 26 disposed on the rear baffle body 22 and matching the threaded rod 25, and a second drive motor 27 for driving the threaded rod 25 to rotate. The second drive motor 27 is mounted on the side wall of the shuttle body 11; the reset structure also includes a channel 28 disposed on the fixed baffle 12 and communicating with the strip groove 21 to allow the threaded rod 25 to pass through, a driven gear 29 disposed on the end of the threaded rod 25 located outside the fixed baffle 12, and a driving gear 210 disposed on the output end of the second drive motor 27 and meshing with the driven gear 29.
[0046] The purpose of this design is that the reset structure allows the rear baffle body 22 to return to a position close to the front baffle body 33 after the tray is removed from the shuttle body 11. The specific working principle is as follows: When the tray needs to be removed from the shuttle body, the two front baffle bodies 33 are first driven to be parallel to the fixed baffle 12 to open the opening. Then, the drive motor 27 is started to drive the threaded rod 25 to rotate, thereby causing the rear baffle body 22 to push the tray off the shuttle body 11, waiting for the next tray to be placed.
[0047] It is worth noting that when the pallet needs to enter the shuttle body 11, the second drive motor 27 needs to rotate in the opposite direction to ensure that the rear gate body 22 can move backward as the pallet is placed. The second drive motor 27 can be electrically connected to the controller 312 to improve the automation level of this device.
[0048] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A heavy load shuttle vehicle comprising a shuttle vehicle body (11) and two fixed aprons (12) provided on both end portions of the shuttle vehicle body (11), characterized in that: It also includes a rear baffle (2) and a front baffle (3) disposed between the two fixed baffles (12) and located at the two ends of the fixed baffles (12); The front baffle (3) includes two baffle structures respectively hinged to the ends of the two fixed baffles (12); The baffle structure includes a mounting groove (31) provided on the end of the fixed baffle (12), a mounting post (32) provided on the mounting groove (31), a front baffle body (33) rotatably connected to the mounting post (32), a torsion spring (34) sleeved on the mounting post (32), one end connected to the mounting groove (31) and the other end connected to the front baffle body (33), a fixing rope (35) provided on the end of the front baffle body (33) away from the fixed baffle (12), and a wire roller (36) for winding the portion of the fixing rope (35) away from the fixed baffle (12). The front baffle (3) also includes a drive structure for driving the line roller (36) to rotate; When the fixing rope (35) is slack, the torsion spring (34) makes the front baffle body (33) and the fixing baffle (12) have an angle of 60° to 120°; When the fixed rope (35) is tensioned, the front baffle body (33) is parallel to the fixed baffle (12).
2. The heavy duty shuttle vehicle of claim 1, wherein: The baffle structure also includes a channel (37) that passes through the fixed baffle (12) and is used to pass through the fixed rope (35); the drive structure includes a drive motor (38) disposed at the end of one of the fixed baffles (12) and connected to the central axis of the roller (36), and a connecting rod (39) for connecting the central axes of the two rollers (36) on the two fixed baffles (12); the two rollers (36) are wound around the fixed rope (35) in the same direction.
3. The heavy duty shuttle vehicle of claim 1, wherein: The front baffle body (33) is provided with a mounting hole (331) rotatably connected to the mounting post (32) and a mounting port (332) for accommodating the torsion spring (34) and communicating with the mounting hole (331).
4. The heavy duty shuttle vehicle of claim 1, wherein: The front baffle body (33) is also provided with a fixing block (333) for fixing the fixing rope (35).
5. The heavy duty shuttle vehicle of claim 2, wherein: The rear baffle (2) includes two strip grooves (21) respectively disposed on the opposite sides of the two fixed baffles (12), and a rear baffle body (22) slidably connected at both ends to the two strip grooves (21).
6. The heavy duty shuttle vehicle of claim 5, wherein: The drive structure also includes a receiver (310) disposed on the connecting rod (39), a transmitter (311) disposed on the side of the rear baffle body (22) and matched with the receiver (310), and a controller (312) electrically connected to the transmitter (311) and the receiver (310); the controller (312) is electrically connected to the drive motor (38).
7. The heavy duty shuttle vehicle of claim 5, wherein: The rear baffle (2) also includes a limiting rod (23) disposed in the strip groove (21) and a limiting hole (24) disposed on the rear baffle body (22) for passing through the limiting rod (23).
8. The heavy duty shuttle vehicle of claim 7, wherein: The rear baffle (2) also includes a reset structure, which includes a threaded rod (25) rotatably disposed in the strip groove (21), a threaded hole (26) disposed on the rear baffle body (22) and matched with the threaded rod (25), and a second drive motor (27) for driving the threaded rod (25) to rotate.
9. The heavy duty shuttle vehicle of claim 8, wherein: The second drive motor (27) is mounted on the side wall of the shuttle body (11); the reset structure also includes a channel (28) provided on the fixed baffle (12) and communicating with the strip groove (21) to allow the threaded rod (25) to pass through, a driven gear (29) provided on the end of the threaded rod (25) located outside the fixed baffle (12), and a drive gear (210) provided on the output end of the second drive motor (27) and meshing with the driven gear (29).
10. The heavy duty shuttle vehicle of claim 5, wherein: The side of the rear baffle body (22) is provided with rollers that are connected to the side wall of the strip groove (21).