Platform cart with guide mechanism

By using guide wheels, connecting shafts, and pins, the stability and controllability of the flatbed trolley on uneven roads are achieved, solving the problem of poor stability in existing technologies and improving transportation efficiency and safety.

CN224159286UActive Publication Date: 2026-04-24YONGBAO INTERNET OF THINGS (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YONGBAO INTERNET OF THINGS (JIANGSU) CO LTD
Filing Date
2025-02-11
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing flatbed carts have poor stability on uneven surfaces, are prone to swaying or tilting, affecting safety and efficiency, and increasing the risk, especially when carrying heavy loads.

Method used

The design employs a structure consisting of guide wheels, connecting shafts, and pins. The rotation of the guide wheels is controlled by a handle. Combined with adjustment and limit components, the angle of the guide wheels can be adjusted and locked, ensuring the stability and controllability of the flatbed trolley under different terrains.

Benefits of technology

It improves the stability and transportation efficiency of flatbed trolleys in different terrains, reduces deviation from the walking path, and enhances safety and operational flexibility.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224159286U_ABST
    Figure CN224159286U_ABST
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Abstract

The utility model discloses a platform cart with a guide mechanism, which comprises a supporting plate, a pull rod is arranged on the supporting plate, an adjusting component is arranged between the supporting plate and the pull rod, the angle of the pull rod is adjusted through the adjusting component, a straight wheel is arranged on the supporting plate, a baffle is hinged on the supporting plate, and the guide mechanism is arranged on the baffle. A mounting seat is arranged on the supporting plate, a connecting block is arranged on the supporting plate, a limiting assembly is arranged on the connecting block, and a guide assembly is arranged on the supporting block. By arranging the guide wheel, the connecting shaft, the bolt and other structures, the grip is utilized to drive the brake cable to pull the bolt and release the limitation of the connecting shaft, so that the guide wheel can perform rotating shaft adjustment, the grip is loosened, the bolt is automatically reset by the third spring, the bolt is automatically inserted into the limiting hole, and the guide wheel is prevented from rotating; therefore, the situation that the walking path of the vehicle body deviates and is difficult to control in the transportation process is prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of flatbed trolley technology, and in particular relates to a flatbed trolley with a guiding mechanism. Background Technology

[0002] Property refers to all types of completed and used buildings and their associated equipment, facilities, and grounds. Property can be large or small; a single residential unit can be considered property, as can an entire building. The same building can also be divided into several properties based on ownership. Property encompasses various types of properties, such as office buildings, commercial buildings, residential communities, villas, industrial parks, hotels, factories, and warehouses. With the development of technology, smart devices are also widely used in property management, such as community express delivery lockers, vehicle recognition devices, and flatbed carts.

[0003] However, existing technologies have some problems: conventional flatbed trolleys generally use swivel casters to guide the trolley. While this allows for easy adjustment of the trolley's direction, on uneven surfaces, this flexibility reduces the overall stability of the trolley, making it prone to swaying or tilting, thus affecting safety. This is especially true when carrying heavy loads, where the swaying is more severe, increasing the risk of tipping over. Furthermore, due to slight undulations or inclinations in the road surface, the swivel casters automatically adjust their angle to adapt to the changes, causing slight deviations or swaying when the trolley is moving in a straight line, resulting in unstable travel speed. This affects handling and reduces work efficiency. Therefore, we propose a flatbed trolley with a guiding mechanism. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a flatbed trolley with a guiding mechanism. By setting up structures such as guide wheels, connecting shafts and pins, users can squeeze the handle to allow the guide wheels to rotate freely and adjust the shaft. Releasing the handle prevents the guide wheels from rotating, thus avoiding the problem of the vehicle body deviating from the walking path during transportation and ensuring the stability and efficiency of transportation.

[0005] This utility model is implemented as follows: a flatbed trolley with a guiding mechanism includes a support plate, a pull rod on the support plate, an adjustment component between the support plate and the pull rod, the pull rod being angled by the adjustment component, a straight wheel on the support plate, a baffle hinged to the support plate, a mounting base on the support plate, a connecting block on the support plate, a limit component on the connecting block, a guiding component on the support block, and a winch on the pull rod.

[0006] Optionally, the adjustment component includes a rotating shaft, which is rotatably connected to a support plate. The pull rod is fixedly connected to the rotating shaft. A sliding hole is provided on the rotating shaft, and a limit pin is slidably connected in the sliding hole. A first spring is provided in the sliding hole, and the limit pin is correspondingly provided with the mounting base.

[0007] Optionally, the limiting component includes a positioning pin, which is slidably connected to the connecting block. A slot is provided on the rotating shaft, and the positioning pin is correspondingly arranged with the slot. A toggle block is provided on the positioning pin, and a second spring is provided inside the connecting block. One end of the second spring contacts the connecting block, and the other end of the second spring contacts the positioning pin.

[0008] Optionally, the guide assembly includes a guide wheel, a connecting shaft is fixedly connected to the guide wheel, the connecting shaft is rotatably connected to the mounting base, a fixing seat is provided inside the mounting base, an end cap is provided on the mounting base for limiting the fixing seat, a pin is provided inside the fixing seat, and a third spring is provided inside the fixing seat.

[0009] Optionally, the connecting shaft is provided with a insertion hole, and a limiting hole is provided in the insertion hole. The insertion hole and the limiting hole are on the same axis, and the pin is provided correspondingly to the insertion hole and the limiting hole.

[0010] Optionally, the winch is provided with a handle and a brake cable, one end of which is fixedly connected to the handle and the other end of which is fixedly connected to a limit pin.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a structure such as a guide wheel, connecting shaft, and pin, when in use, squeezing the handle will drive the brake cable to pull the pin. The pin will disengage from the limit hole and contact the restriction of the connecting shaft, allowing the guide wheel to rotate and adjust. Releasing the handle will cause the pin to automatically reset under the influence of the third spring, causing the pin to automatically insert into the limit hole and prevent the guide wheel from rotating. This prevents the vehicle from deviating from its travel path during transportation, making it difficult to control and affecting transportation efficiency.

[0013] 2. By setting up adjustment components and rotating the lever to adjust the angle, users can rotate the lever and freely adjust its angle, improving the applicability of the stroller in different terrains and scenarios. Whether it is a narrow passage or a rugged road, users can find the most suitable pushing posture by adjusting the angle of the lever, effectively reducing the burden of pushing.

[0014] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the baffle structure provided by this utility model;

[0017] Figure 3 This is a schematic diagram of the adjustment component structure provided by this utility model;

[0018] Figure 4 This is a schematic diagram of the guide component structure provided by this utility model;

[0019] Figure 5 This is a utility model Figure 4 Enlarged schematic diagram of part A;

[0020] Figure 6 This is a schematic diagram of the fixed base structure provided by this utility model.

[0021] In the diagram: 1. Support plate; 11. Pull rod; 12. Straight wheel; 13. Baffle; 14. Mounting base; 15. Connecting block; 2. Adjustment assembly; 21. Rotating shaft; 22. Sliding hole; 23. Limiting pin; 24. First spring; 25. Slot; 3. Limiting assembly; 31. Positioning pin; 32. Toggle block; 33. Second spring; 4. Guide assembly; 41. Guide wheel; 42. Connecting shaft; 43. Insertion hole; 44. Limiting hole; 45. Fixing base; 46. Pin; 47. End cap; 48. Third spring; 5. Winch; 51. Handle; 52. Brake cable. Detailed Implementation

[0022] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0023] like Figures 1 to 6 As shown in the figure, a flatbed trolley with a guiding mechanism provided by this utility model embodiment includes a support plate 1, a pull rod 11 provided on the support plate 1, an adjustment component 2 provided between the support plate 1 and the pull rod 11, the pull rod 11 being angled by the adjustment component 2, a straight wheel 12 provided on the support plate 1, a baffle 13 hinged on the support plate 1, a mounting base 14 provided on the support plate 1, a connecting block 15 provided on the support plate 1, a limit component 3 provided on the connecting block 15, a guide component 4 provided on the support block, and a winch 5 provided on the pull rod 11.

[0024] Furthermore, the straight-line wheels 12 ensure the stability of the trolley on flat surfaces, while the guide assembly 4 guides the trolley along a straight path in complex environments, preventing deviation. The baffle 13 effectively prevents goods from slipping during transportation. The overall structure is compact and fully functional, significantly improving the practicality and transportation efficiency of the trolley.

[0025] Specifically, the adjustment component 2 includes a rotating shaft 21, which is rotatably connected to the support plate 1. The pull rod 11 is fixedly connected to the rotating shaft 21. A sliding hole 22 is provided on the rotating shaft 21. A limit pin 23 is slidably connected in the sliding hole 22. A first spring 24 is provided in the sliding hole 22. The limit pin 23 is correspondingly provided with the mounting base 14.

[0026] Furthermore, the adjustment component 2, through the rotatable connection between the rotating shaft 21 and the support plate 1, and the fixed connection between the pull rod 11 and the rotating shaft 21, enables the adjustment of the angle of the pull rod 11 relative to the support plate 1, increasing the flexibility of use. The limiting pin 23 within the sliding hole 22 corresponds to the mounting base 14. Through the action of the first spring 24, it automatically engages with the limiting hole 44 in the mounting base 14 after adjustment, increasing the friction between the rotating shaft 21 and the mounting base 14, thus stabilizing the angle of the pull rod 11. This design is not only easy to operate but also structurally robust, effectively ensuring the stability and controllability of the flatbed trolley at different tilt angles, and improving the safety and efficiency of transportation operations.

[0027] Specifically, the limiting component 3 includes a positioning pin 31, which is slidably connected to the connecting block 15. The rotating shaft 21 has a slot 25, and the positioning pin 31 is correspondingly arranged with the slot 25. The positioning pin 31 is provided with a toggle block 32. The connecting block 15 is provided with a second spring 33, one end of which contacts the connecting block 15, and the other end of which contacts the positioning pin 31.

[0028] Furthermore, the limiting component 3 achieves precise locking of the angle of the rotating shaft 21 through the sliding connection between the positioning pin 31 and the connecting block 15, and the corresponding setting of the positioning pin 31 and the slot 25 on the rotating shaft 21. The user can easily move the positioning pin 31 by operating the toggle block 32. When the positioning pin 31 is engaged in the slot 25, the angle of the pull rod 11 is stabilized, preventing it from shaking or changing accidentally. The second spring 33 provides the positioning pin 31 with automatic reset force, which also enhances the stability of the structure. The operation is simple, and the locking effect is reliable, effectively improving the stability and safety of the flatbed trolley during use.

[0029] Specifically, the guide assembly 4 includes a guide wheel 41, a connecting shaft 42 fixedly connected to the guide wheel 41, the connecting shaft 42 being rotatably connected to the mounting base 14, a fixing base 45 being provided inside the mounting base 14, an end cap 47 being provided on the mounting base 14, the end cap 47 being used to limit the fixing base 45, a pin 46 being provided inside the fixing base 45, and a third spring 48 being provided inside the fixing base 45.

[0030] Furthermore, the guide assembly 4 is rotatably connected to the mounting base 14 via the guide wheel 41 and its connecting shaft 42, ensuring stable operation in complex or confined environments. The pin 46 within the fixed base 45 works in conjunction with the third spring 48, enabling flexible adjustment of the rotation angle of the guide wheel 41 and automatically locking it after adjustment to prevent accidental rotation. The end cap 47 effectively limits the fixed base 45, enhancing structural stability. Overall, the guide assembly 4 improves the flexibility and adaptability of the flatbed trolley, ensuring smooth transportation operations.

[0031] Specifically, the connecting shaft 42 is provided with a socket 43, and a limiting hole 44 is provided in the socket 43. The socket 43 and the limiting hole 44 are on the same axis. The pin 46 is provided correspondingly to the socket 43 and the limiting hole 44. The winch 5 is provided with a handle 51 and a brake cable 52. One end of the brake cable 52 is fixedly connected to the handle 51, and the other end of the brake cable 52 is fixedly connected to the limiting pin 23.

[0032] Furthermore, firstly, the design of the insertion hole 43 and the limiting hole 44 on the connecting shaft 42, in conjunction with the use of the pin 46, enables precise control and locking of the rotation angle of the guide wheel 41, enhancing the stability and controllability of the flatbed trolley. Secondly, the design of the handle 51 and the brake cable 52 on the winch 5 allows the user to operate the handle 51 to pull the brake cable 52, thereby controlling the movement of the limiting pin 23 and achieving rapid adjustment of the angle of the guide wheel 41. The operation is simple and efficient, improving the flexibility and practicality of the flatbed trolley.

[0033] Working principle: When in use, pinch the handle 51, which drives the brake cable 52 to pull the pin 46. The pin 46 disengages from the limit hole 44, releasing the restriction of the connecting shaft 42, allowing the guide wheel 41 to rotate and adjust the shaft 21. When the handle 51 is released, the pin 46 is automatically reset by the third spring 48, causing the pin 46 to automatically insert into the limit hole 44, preventing the guide wheel 41 from rotating. This prevents the vehicle body from deviating from its travel path during transportation, making it difficult to control and affecting transportation efficiency.

[0034] By setting the adjustment component 2 and rotating the pull rod 11, the angle of the pull rod 11 can be adjusted, allowing the user to rotate the pull rod 11 and freely adjust its angle, thereby improving the applicability of the trolley in different terrains and scenarios. Whether it is a narrow passage or a rugged road, the user can find the most suitable pushing posture by adjusting the angle of the pull rod 11, effectively reducing the burden of pushing.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flatbed trolley with a guiding mechanism, comprising a support plate (1), characterized in that: A pull rod (11) is provided on the support plate (1), and an adjustment component (2) is provided between the support plate (1) and the pull rod (11). The pull rod (11) is angled by the adjustment component (2). A straight wheel (12) is provided on the support plate (1). A baffle (13) is hinged on the support plate (1). A mounting base (14) is provided on the support plate (1). A connecting block (15) is provided on the support plate (1). A limit component (3) is provided on the connecting block (15). A guide component (4) is provided on the support block. A winch (5) is provided on the pull rod (11).

2. A flatbed trolley with a guiding mechanism according to claim 1, characterized in that: The adjustment component (2) includes a rotating shaft (21), which is rotatably connected to the support plate (1). The pull rod (11) is fixedly connected to the rotating shaft (21). A sliding hole (22) is provided on the rotating shaft (21). A limit pin (23) is slidably connected in the sliding hole (22). A first spring (24) is provided in the sliding hole (22). The limit pin (23) is correspondingly provided with the mounting base (14).

3. A flatbed trolley with a guiding mechanism according to claim 2, characterized in that: The limiting component (3) includes a positioning pin (31), which is slidably connected to the connecting block (15). The rotating shaft (21) has a slot (25) and the positioning pin (31) is correspondingly set to the slot (25). The positioning pin (31) is provided with a toggle block (32). The connecting block (15) is provided with a second spring (33). One end of the second spring (33) is in contact with the connecting block (15), and the other end of the second spring (33) is in contact with the positioning pin (31).

4. A flatbed trolley with a guiding mechanism according to claim 1, characterized in that: The guide assembly (4) includes a guide wheel (41), a connecting shaft (42) is fixedly connected to the guide wheel (41), the connecting shaft (42) is rotatably connected to the mounting base (14), a fixing base (45) is provided inside the mounting base (14), an end cap (47) is provided on the mounting base (14), the end cap (47) is used to limit the fixing base (45), a pin (46) is provided inside the fixing base (45), and a third spring (48) is provided inside the fixing base (45).

5. A flatbed trolley with a guiding mechanism according to claim 4, characterized in that: The connecting shaft (42) has a socket (43) and a limiting hole (44) is provided in the socket (43). The socket (43) and the limiting hole (44) are on the same axis. The pin (46) is provided correspondingly to the socket (43) and the limiting hole (44).

6. A flatbed trolley with a guiding mechanism according to claim 5, characterized in that: The winch (5) is provided with a handle (51) and a brake line (52). One end of the brake line (52) is fixedly connected to the handle (51), and the other end of the brake line (52) is fixedly connected to the limiting pin (23).