Pull-type fast food truck with stable supporting function
By designing the transmission structure and rack and pinion plate limiting plate, the problems of cumbersome operation and instability when the towed food cart is parked are solved, achieving fast and stable support and fixation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO TOU XING TIAN XIA SPECIAL PURPOSE VEHICLE CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-01
AI Technical Summary
Existing towable food carts require adjusting each outrigger individually and finding stones to wedge them in when parking, which is cumbersome and leads to unstable support.
A transmission structure was designed that uses a handwheel to drive a transmission rod and a bevel gear system to enable multiple support legs to extend and retract synchronously. The wheels are fixed in conjunction with a rack and pinion plate and a limiting plate to improve support stability.
It enables rapid and stable support and fixation of the food cart, simplifies the operation process, and improves the ease of use and stability of the towed food cart.
Smart Images

Figure CN224184053U_ABST
Abstract
Description
A towable food cart with stable support function Technical Field
[0001] This utility model relates to the field of towed food cart technology, specifically a towed food cart with stable support function. Background Technology
[0002] A towed food cart is a mobile device consisting of an independent food cart body. It has a sales window at the front and a connecting device at the rear. It does not have the ability to drive on its own and needs to be towed by an external vehicle.
[0003] Towable food carts typically need to be moved frequently and require stable support when parked to prevent them from swaying. However, existing food carts require adjusting the outriggers one by one for support, and after the support is completed, it is also necessary to find nearby stones to wedge into the wheel positions. This operation method is quite troublesome and causes inconvenience to subsequent operations. Therefore, a towable food cart with stable support function is proposed. Summary of the Invention
[0004] The purpose of this invention is to provide a towable food cart with stable support function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a towable food cart with stable support function, comprising a food cart body and a tow frame, and further comprising:
[0006] A protective cover is installed on the top of the traction frame. A support frame is fixedly connected inside the traction frame. A first transmission rod is rotatably connected inside the support frame. A first bevel gear is fixedly connected to both ends of the first transmission rod. A second bevel gear meshes with the surface of the first bevel gear. A screw is fixedly connected inside the second bevel gear.
[0007] A threaded sleeve is threaded onto the surface of the screw rod. Support legs are fixedly connected to both the front and rear sides of the threaded sleeve surface. A first fixing plate is fixedly connected to the lower part of the surface of the food cart body. A rack plate is movably connected inside the first fixing plate. A first connecting plate is fixedly connected to one end of the rack plate. Limiting plates are fixedly connected to both sides of the first connecting plate. A transmission structure for driving the screw rod is provided inside the protective cover.
[0008] Preferably, the transmission structure includes a handwheel, a second transmission rod, a third bevel gear, a fourth bevel gear, a fifth bevel gear, a third transmission rod, and a gear. The second transmission rod is rotatably connected to the top of the support frame. The handwheel is fixedly connected to the top of the second transmission rod. The third bevel gear is fixedly connected to the bottom of the second transmission rod. The fourth bevel gear meshes with the surface of the third bevel gear. The fourth bevel gear is fixed to the surface of the first transmission rod. The fifth bevel gear meshes with the surface of the fourth bevel gear. The top of the third transmission rod is fixedly connected to the interior of the fifth bevel gear. The gear is fixedly connected to the bottom of the third transmission rod. The gear meshes with one side of the rack plate. The third transmission rod is rotatably connected to the bottom of the support frame.
[0009] Preferably, a second connecting plate is fixedly connected between the two threaded sleeves, and a movable plate is fixedly connected to both sides of the surface of the second connecting plate. A second fixed plate is fixedly connected inside the traction frame, and the surface of the movable plate is slidably connected to the inside of the second fixed plate.
[0010] Preferably, a sliding plate is fixedly connected to both the upper and lower surfaces of the rack plate, and the sliding plate is slidably connected to the interior of the first fixed plate.
[0011] Preferably, the inner side of the limiting plate is arc-shaped, and the inner side of the limiting plate is provided with rubber protrusions.
[0012] Preferably, the surface of the handwheel is covered with an anti-slip mat, and the anti-slip mat is made of rubber.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention, after the operator parks the food cart in the designated position, utilizes a first transmission rod, a first bevel gear, a second bevel gear, a screw, a screw sleeve, support legs, and a transmission structure. When the operator turns the handwheel, multiple support legs can simultaneously extend towards the ground, thus facilitating stable support for the food cart. Simultaneously, the rack plate, the first connecting plate, the limiting plate, and the transmission structure, while supporting the ground, also limit the wheels of the food cart, providing double fixation and improving the stability of the food cart support. Attached Figure Description
[0015] Figure 1 is a three-dimensional structural diagram of this utility model;
[0016] Figure 2 is a partial three-dimensional structural schematic diagram of this utility model;
[0017] Figure 3 is a schematic diagram of the three-dimensional structure of this utility model from a bottom view;
[0018] Figure 4 is a partial three-dimensional structural schematic diagram of this utility model;
[0019] Figure 5 is a partial three-dimensional structural schematic diagram of this utility model:
[0020] Figure 6 is a partially enlarged three-dimensional structural schematic diagram of A in Figure 1 of this utility model.
[0021] In the diagram: 1. Food cart body; 2. Traction frame; 3. Support frame; 4. First transmission rod; 5. First bevel gear; 6. Second bevel gear; 7. Screw; 8. Screw sleeve; 9. Support leg; 10. Transmission structure; 101. Handwheel; 102. Second transmission rod; 103. Third bevel gear; 104. Fourth bevel gear; 105. Fifth bevel gear; 106. Third transmission rod; 107. Gear; 11. Rack plate; 12. First fixing plate; 13. First connecting plate; 14. Limiting plate; 15. Second connecting plate; 16. Moving plate; 17. Second fixing plate; 18. Protective cover; 19. Anti-slip mat; 20. Skateboard. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please refer to Figures 1-6. A towable food cart with stable support function includes a food cart body 1 and a tow frame 2. The food cart body 1 is fixedly connected to the tow frame 2 via a frame at its bottom. A protective cover 18 is provided on the top of the tow frame 2. A support frame 3 is fixedly connected inside the tow frame 2. A first transmission rod 4 is rotatably connected inside the support frame 3. A first bevel gear 5 is fixedly connected to both ends of the first transmission rod 4. A second bevel gear 6 meshes with the surface of the first bevel gear 5. A screw is fixedly connected inside the second bevel gear 6. 7. A threaded sleeve 8 is threaded onto the surface of the screw 7. A second connecting plate 15 is fixedly connected between the two threaded sleeves 8. A movable plate 16 is fixedly connected to both sides of the surface of the second connecting plate 15. A second fixed plate 17 is fixedly connected inside the traction frame 2. The surface of the movable plate 16 is slidably connected to the interior of the second fixed plate 17. The slidable connection between the movable plate 16 and the second fixed plate 17 ensures that the two threaded sleeves 8 move synchronously, thereby avoiding uneven force on the support leg 9. It also provides guidance for the movement of the threaded sleeves 8 and prevents the threaded sleeves 8 from moving with the screw 7. The rotation ensures the vertical lifting and lowering of the support leg 9. Support legs 9 are fixedly connected to both the front and rear sides of the screw sleeve 8. A first fixed plate 12 is fixedly connected to the lower surface of the food cart body 1. A rack plate 11 is movably connected inside the first fixed plate 12. Slide plates 20 are fixedly connected to both the upper and lower surfaces of the rack plate 11. The slide plates 20 are slidably connected to the interior of the first fixed plate 12. This slidable connection between the slide plates 20 and the first fixed plate 12 restricts the direction of movement of the rack plate 11, preventing it from shifting or wobbling during horizontal movement. Meanwhile, it also ensures the stability of the meshing between the gear 107 and the rack plate 11. One end of the rack plate 11 is fixedly connected to a first connecting plate 13. Both sides of the first connecting plate 13 are fixedly connected to limit plates 14. The inner side of the limit plate 14 is arc-shaped and has rubber protrusions. This arrangement can increase the friction between the limit plate 14 and the tire, thereby preventing the food cart from moving due to the movement of the tire, thus improving the stability of the food cart. The inside of the protective cover 18 is provided with a transmission structure 10 for transmitting power to the screw 7.
[0024] The transmission structure 10 includes a handwheel 101, a second transmission rod 102, a third bevel gear 103, a fourth bevel gear 104, a fifth bevel gear 105, a third transmission rod 106, and a gear 107. The second transmission rod 102 is rotatably connected to the top of the support frame 3. The handwheel 101 is fixedly connected to the top of the second transmission rod 102. The third bevel gear 103 is fixedly connected to the bottom of the second transmission rod 102. The fourth bevel gear 104 meshes with the surface of the third bevel gear 103. The surface of the first transmission rod 4 is fixed, the surface of the fifth bevel gear 105 meshes with the surface of the fourth bevel gear 104, the top of the third transmission rod 106 is fixedly connected to the interior of the fifth bevel gear 105, the gear 107 is fixedly connected to the bottom of the third transmission rod 106, the gear 107 meshes with one side of the rack plate 11, and the third transmission rod 106 is rotatably connected to the bottom of the support frame 3. Through the transmission structure 10, when the operator needs to unfold the support leg 9, the handwheel 101 can be rotated clockwise. The surface is covered with an anti-slip mat 19, which is made of rubber. The anti-slip mat 19 increases the friction when the operator turns the handwheel 101, preventing slippage. At this time, the handwheel 101 drives the second transmission rod 102 to rotate vertically downwards, causing the third bevel gear 103 at the bottom of the second transmission rod 102 to rotate accordingly. Simultaneously, the third bevel gear 103 drives the fourth bevel gear 104 to rotate horizontally, causing the fourth bevel gear 104 to drive the first transmission rod 4 and the fifth bevel gear 105 to rotate. The rotation of the first transmission rod 4 will drive the first bevel gear 5 to rotate, and then drive the second bevel gear 6 to rotate, which in turn drives the screw 7 to rotate. As the screw 7 rotates, it will drive the screw sleeve 8 and the support leg 9 to move downward, so as to facilitate support with the ground. At the same time, the fifth bevel gear 105 will also drive the third transmission rod 106 and the gear 107 to rotate, so that the gear 107 drives the rack plate 11 to move, and drives the first connecting plate 13 and the limiting plate 14 to move, thereby fixing the wheel.
[0025] Working principle: After the operator drives the food cart to the designated position, the support leg 9 needs to be extended to support the cart. At this time, the operator can turn the handwheel 101 clockwise, causing the handwheel 101 to drive the second transmission rod 102 to rotate, which in turn drives the third bevel gear 103 to rotate. Simultaneously, the fourth bevel gear 104, the first transmission rod 4, and the fifth bevel gear 105 rotate. As the first transmission rod 4 rotates, it also drives the first bevel gears 5 on both sides to rotate, which in turn drives the second bevel gear 6 and the screw 7 to rotate. As the screw 7 rotates, it causes the screw sleeve 8 and the support leg 9 to move downward, thereby supporting the traction frame 2. When the fifth bevel gear 105 rotates, it will also drive the third transmission rod 106 to rotate, and drive the gear 107 to rotate as well. At this time, the rack plate 11 will move with the rotation of the gear 107, and drive the first connecting plate 13 and the limiting plate 14 to move together, so that the limiting plate 14 fits against the tire. Then the handwheel 101 can be stopped to ensure that the multiple support legs 9 are deployed synchronously, so as to double fix the food cart. When the operator needs to drive the food cart away, the handwheel 101 can be turned counterclockwise to retract the support legs 9, and at the same time drive the limiting plate 14 to release the limit on the tire. Finally, the operator can tow the food cart with an external vehicle.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] 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 towable food cart with stable support function, comprising a food cart body (1) and a tow frame (2), characterized in that, Also includes: A protective cover (18) is installed on the top of the traction frame (2). A support frame (3) is fixedly connected inside the traction frame (2). A first transmission rod (4) is rotatably connected inside the support frame (3). A first bevel gear (5) is fixedly connected to both ends of the first transmission rod (4). A second bevel gear (6) meshes with the surface of the first bevel gear (5). A screw rod (7) is fixedly connected inside the second bevel gear (6). A threaded sleeve (8) is threaded onto the surface of the screw rod (7). (8) Support legs (9) are fixedly connected to both the front and rear sides of the surface. A first fixing plate (12) is fixedly connected to the lower part of the surface of the food cart body (1). A rack plate (11) is movably connected inside the first fixing plate (12). A first connecting plate (13) is fixedly connected to one end of the rack plate (11). Limiting plates (14) are fixedly connected to both sides of the first connecting plate (13). A transmission structure (10) for transmitting power to the screw (7) is provided inside the protective cover (18).
2. The towing food cart with stable support function according to claim 1, characterized in that: The transmission structure (10) includes a handwheel (101), a second transmission rod (102), a third bevel gear (103), a fourth bevel gear (104), a fifth bevel gear (105), a third transmission rod (106), and a gear (107). The second transmission rod (102) is rotatably connected to the top of the support frame (3). The handwheel (101) is fixedly connected to the top of the second transmission rod (102). The third bevel gear (103) is fixedly connected to the bottom of the second transmission rod (102). The fourth bevel gear (104) is fixedly connected to the third transmission rod (105). The surfaces of the bevel gears (103) mesh with each other, the fourth bevel gear (104) is fixed to the surface of the first transmission rod (4), the third transmission rod (106) is rotatably connected to the bottom of the support frame (3), the fifth bevel gear (105) meshes with the surface of the fourth bevel gear (104), the fifth bevel gear (105) is fixedly connected to the top of the third transmission rod (106), the gear (107) is fixedly connected to the bottom of the third transmission rod (106), and the gear (107) meshes with one side of the rack plate (11).
3. A towable food cart with stable support function according to claim 1, characterized in that: A second connecting plate (15) is fixedly connected between the two screw sleeves (8). A movable plate (16) is fixedly connected to both sides of the surface of the second connecting plate (15). A second fixed plate (17) is fixedly connected inside the traction frame (2). The surface of the movable plate (16) is slidably connected to the inside of the second fixed plate (17).
4. A towable food cart with stable support function according to claim 1, characterized in that: Slide plates (20) are fixedly connected to both the upper and lower surfaces of the rack plate (11), and the slide plates (20) are slidably connected to the interior of the first fixed plate (12).
5. A towable food cart with stable support function according to claim 1, characterized in that: The inner side of the limiting plate (14) is arc-shaped, and the inner side of the limiting plate (14) is provided with rubber protrusions.
6. A towable food cart with stable support function according to claim 2, characterized in that: The surface of the handwheel (101) is covered with an anti-slip pad (19), and the anti-slip pad (19) is made of rubber.