A transport cart based on toy sales
By using a power motor and transmission system in conjunction with a clamping mechanism, the toy sales trolley can automatically clamp storage boxes of different sizes, solving the problem that traditional fixed storage structures cannot be flexibly replaced, and improving transportation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU FUCHI TECHNOLOGY CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-14
Smart Images
Figure CN224491136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toy sales technology, specifically to a toy sales transport cart. Background Technology
[0002] Toys are items designed for play, entertainment, education, or skill development, typically intended for children, but also including entertainment products for teenagers and adults. They are primarily for play and entertainment, providing fun and relaxation. Many toys also have educational functions, such as promoting cognitive, manual dexterity, language, social, or emotional development (e.g., puzzles, building blocks, early education machines).
[0003] In the toy sales process, trolleys are often used to accommodate and carry multiple toys, while protecting them from collisions and friction, reducing the risk of damage during transportation. Existing trolleys have storage boxes fixedly installed on top, but these storage boxes are fixed in size and fixed to the top of the trolley. Since the number of toys that can be transported by the fixed-capacity storage boxes is limited, it is not possible to quickly replace the fixed-capacity storage boxes on the top of the trolley, which reduces the overall transportation efficiency. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a toy sales transport trolley with the advantages of efficient fixed storage boxes and wide applicability. Through the coordinated use of a power motor, power bevel gear, bevel gear ring, driven bevel gear, threaded rod, threaded sleeve, U-shaped connecting rod, rectangular shell, and positioning clamp, it achieves automatic, synchronous, and stable clamping of storage boxes of different specifications. This solves the problems of traditional fixed storage structures being unable to be flexibly replaced and having poor adaptability, greatly improving the practicality, safety, and operational efficiency of the toy transport trolley.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a toy sales transport cart, comprising a movable seat and brake casters fixedly installed at its four bottom corners. The movable seat is a hollow rectangular structure, and a push rod that moves in conjunction with the brake casters is fixedly connected to one side of the top of the movable seat.
[0006] The top center of the mobile base supports storage boxes of different sizes. A controller for controlling the entire device is fixedly connected to the top of the mobile base on the side away from the storage boxes. Positioning mechanisms for fixing storage boxes of different sizes are provided on the front and rear sides of the top of the mobile base. The positioning mechanism includes rectangular shells set on the front and rear surfaces of the storage boxes. U-shaped connecting rods are fixedly connected to the left and right ends of the two rectangular shells on the side away from each other. The ends of the U-shaped connecting rods away from the rectangular shells extend to the front and rear sides of the interior of the mobile base and are slidably connected to the front and rear surfaces of the mobile base respectively. Positioning clamps that can move up and down are slidably connected to the top of the two rectangular shells. Rubber pads that fit against the front and rear surfaces of the storage boxes are fixedly connected to the side of the two positioning clamps that are close to each other.
[0007] As a preferred embodiment of this utility model, a bevel gear ring is rotatably connected to the center of the bottom of the inner wall of the movable seat, and driven bevel gears are meshed with the front and rear sides of the top of the bevel gear ring and arranged perpendicularly thereto. The inner walls of the two driven bevel gears are fixedly connected with threaded rods arranged parallel to the width direction of the movable seat.
[0008] In a preferred embodiment of this invention, the two threaded rods are rotatably connected to the front and rear sides of the inner wall of the movable seat on opposite sides. Each of the two threaded rods is threaded with a threaded sleeve. A guide rod, parallel to the two threaded rods, is fixedly connected between the front and rear sides of the inner wall of the movable seat.
[0009] As a preferred embodiment of this utility model, the inner walls of the right ends of the two threaded sleeves are slidably connected to the surface of the guide rod, and the two threaded sleeves are fixedly connected to the left and right ends of the opposite side. The four U-shaped connecting rods extend to the front and rear sides of the outside of the movable seat and are slidably connected to it.
[0010] As a preferred embodiment of this utility model, a power bevel gear is meshed with the top left side of the bevel gear ring and is arranged perpendicularly thereto. A power motor is fixedly connected to the bottom left side of the inner wall of the movable seat. The output shaft of the power motor extends to the inner wall of the power bevel gear and is fixedly connected thereto.
[0011] In a preferred embodiment of this invention, each of the two rectangular shells has a horizontal tube fixedly connected inside, which is parallel to the length direction of the movable seat. Each of the two horizontal tubes has a plurality of vertical tubes fixedly connected to its top, which are equidistant from each other. The tops of the plurality of vertical tubes extend to the top of the rectangular shell and are fixedly connected thereto. Each of the vertical tubes has a piston plate that moves vertically and vertically connected to its inner wall. Each of the piston plates has an L-shaped connecting rod fixedly connected to its top. The end of the L-shaped connecting rod away from the piston plate extends to the top of the vertical tube and is fixedly connected to the positioning clamp on the side away from each other.
[0012] In a preferred embodiment of this invention, a sealing ring is fixedly connected to the top of each of the multiple vertical tubes, and the inner wall of the sealing ring is slidably connected to the surface of the L-shaped connecting rod. A positioning shell is fixedly connected to the left end of the outer wall of each of the two rectangular shells, and an air pump is fixedly connected inside each of the two positioning shells. An air extraction pipe is fixedly connected to the air extraction end of each of the two air pumps, and the end of each air extraction pipe away from the air pump extends to the outside of the positioning shell and is fixedly connected thereto. An air supply pipe is fixedly connected to the air outlet end of each of the two air pumps, and the end of each air supply pipe away from the air pump extends to the inside of the rectangular shell and is fixedly connected to the left end of each of the two horizontal tubes.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model starts the power motor through the controller. When the power motor rotates forward, the two threaded sleeves approach each other along the surface of the threaded rod. When the two threaded sleeves approach each other, they are connected by a U-shaped connecting rod to drive the two rectangular shells to approach the front and rear surfaces of the storage box respectively. When the two rectangular shells approach each other along the front and rear surfaces of the moving seat, they drive the two positioning clamps to gradually approach the front and rear surfaces of the storage box until the rubber pads on the side of the two positioning clamps approach each other are in contact with the front and rear surfaces of the storage box respectively, so as to effectively fix the storage boxes of different specifications.
[0015] 2. In this utility model, after adjusting the two rectangular shells at the front and rear to a suitable distance to fit the front and rear surfaces of the storage box, the operator starts the air pumps on both sides through the controller. After the air pumps are running, air is drawn in through the suction pipe, pressurized, and then sent into the corresponding horizontal pipe through the air delivery pipe. The compressed air then enters multiple vertical pipes connected to the horizontal pipes, causing the air pressure inside the vertical pipes to gradually increase. With the continuous action of the air pressure, the gas pushes the piston plate in each vertical pipe to move smoothly upward along the inner wall of the vertical pipe. The rise of the piston plate is converted into the vertical upward movement of the positioning clamp through the L-shaped connecting rod. The two positioning clamps rise synchronously until their tops reach or exceed the height of the storage box, thereby realizing the upper limit and clamping of storage boxes of different heights. This design allows the positioning clamps to not only automatically adjust the distance in the horizontal direction, but also automatically rise and fall to a suitable position in the vertical direction according to the height of the storage box, significantly enhancing the stability during transportation and preventing the storage box from jumping up and down or tipping over during bumps. Attached Figure Description
[0016] Figure 1 This is a three-dimensional drawing of the present invention;
[0017] Figure 2 This is a schematic diagram of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the movable seat structure of this utility model.
[0019] In the diagram: 1. Movable seat; 2. Brake caster; 3. Push rod; 4. Controller; 6. Storage box; 7. Rectangular shell; 8. U-shaped connecting rod; 9. Horizontal tube; 10. Vertical tube; 11. Piston plate; 12. L-shaped connecting rod; 13. Sealing ring; 14. Positioning shell; 15. Air pump; 16. Air supply pipe; 17. Air extraction pipe; 18. Positioning clamp; 19. Rubber pad; 20. Bevel gear ring; 21. Driven bevel gear; 22. Threaded rod; 23. Threaded sleeve; 24. Guide rod; 25. Power bevel gear; 26. Power motor. Detailed Implementation
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0024] Example 1
[0025] Reference Figure 1-3 This is the first embodiment of the present invention, which provides a toy sales transport cart, including a movable seat 1 and brake casters 2 fixedly installed at the four corners of its bottom. The movable seat 1 is a hollow rectangular structure, and a push rod 3 that moves in conjunction with the brake casters 2 is fixedly connected to one side of the top of the movable seat 1.
[0026] Furthermore, the top center of the mobile base 1 carries storage boxes 6 of different specifications. The top of the side of the mobile base 1 away from the storage box 6 is fixedly connected to a controller 4 that controls the entire device. The front and rear sides of the top of the mobile base 1 are provided with positioning mechanisms to fix the storage boxes 6 of different specifications. The positioning mechanism includes rectangular shells 7 set on the front and rear surfaces of the storage boxes 6. The left and right ends of the two rectangular shells 7 are fixedly connected to U-shaped connecting rods 8 on the side away from each other. The ends of the U-shaped connecting rods 8 away from the rectangular shells 7 extend to the front and rear sides of the interior of the mobile base 1 and are slidably connected to the front and rear surfaces of the mobile base 1 respectively. The top of the two rectangular shells 7 are slidably connected to positioning clamps 18 that move up and down. The side of the two positioning clamps 18 that is close to each other is fixedly connected to rubber pads 19 that fit against the front and rear surfaces of the storage boxes 6.
[0027] Specifically, the device mainly includes a movable base 1, which serves as the basic support platform for the entire trolley. It adopts a hollow rectangular structure design, ensuring structural strength while reducing overall weight, facilitating movement and operation. Brake casters 2 are fixedly installed at the four corners of the bottom of the movable base 1. These casters not only allow for flexible movement of the trolley but also provide a braking function, locking the position during loading, unloading, or stopping to prevent accidental slippage and improve safety. A push rod 3 is fixedly connected to one side of the top of the movable base 1. Operators can push the entire trolley by holding the push rod 3, facilitating convenient toy transport. The push rod 3 is firmly connected to the movable base 1, ensuring stability during the pushing and pulling process. At the top center of the movable base 1, storage boxes 6 of different sizes are placed. This design allows for the replacement of storage boxes 6 of different sizes or types according to actual transportation needs, thereby improving transportation flexibility and adaptability, and solving the problem of the fixed capacity of traditional fixed boxes. To ensure the stable fixation of storage boxes 6 of different sizes and prevent damage to toys due to shaking or collision during transportation, [further details are needed]. A controller 4 is installed on the top of the side of the movable base 1 away from the push rod 3. The controller 4 is used to control the entire device. Positioning mechanisms are provided on the front and rear sides of the top of the movable base 1 for lateral limiting and clamping of the storage box 6. The positioning mechanism includes rectangular shells 7 fixed to the front and rear surfaces of the storage box 6. U-shaped connecting rods 8 are fixedly connected to the outer sides of the left and right ends of each rectangular shell 7. The other end of the U-shaped connecting rods 8 extends to the front and rear sides of the interior of the movable base 1 and forms a sliding connection with the front and rear surfaces of the movable base 1, so that the entire rectangular shell 7 can move horizontally. The storage box 6 is slidable to accommodate storage boxes of different widths. A positioning clamp 18 that can move up and down is slidably connected to the top of each of the two rectangular shells 7. The positioning clamp 18 can move vertically under the action of external force to press and fix the storage box 6. On the side of the two positioning clamps 18 that are close to each other, a rubber pad 19 is fixedly connected. The rubber pad 19 fits tightly against the front and rear surfaces of the storage box 6 and plays a role in buffering and anti-slip during the clamping process. This can effectively prevent the storage box 6 from shifting during transportation and avoid scratching or damaging its surface.
[0028] Furthermore, when it is necessary to install or replace the storage box 6, the operator controls the positioning mechanism to release via the controller 4, the positioning clamp 18 moves upward, and the rubber pad 19 detaches from the surface of the storage box 6. Then, the storage box 6 of the required size is placed at the top center of the moving seat 1. After it is placed in place, the positioning mechanism is activated again via the controller 4 to drive the positioning clamp 18 to move downward, so that the rubber pad 19 presses against the front and rear sides of the storage box 6. At the same time, the U-shaped connecting rod 8 automatically adapts to the width of the storage box 6 under the guidance of the sliding connection structure, ensuring stable clamping. The whole process is simple to operate and can quickly complete the replacement and fixing of the storage box, significantly improving transportation efficiency and reducing the risk of damage to toys during transportation.
[0029] Example 2
[0030] In the second embodiment of this utility model, a bevel gear ring 20 is rotatably connected at the center of the bottom of the inner wall of the movable seat 1. Both the front and rear sides of the top of the bevel gear ring 20 are meshed with driven bevel gears 21 arranged perpendicularly thereto. The inner walls of the two driven bevel gears 21 are fixedly connected with threaded rods 22 arranged parallel to the width direction of the movable seat 1.
[0031] Furthermore, a power bevel gear 25 is meshed with the top left side of the bevel ring 20 and is perpendicular to it. A power motor 26 is fixedly connected to the bottom left side of the inner wall of the movable seat 1. The output shaft of the power motor 26 extends to the inner wall of the power bevel gear 25 and is fixedly connected to it.
[0032] Furthermore, the two threaded rods 22 are rotatably connected to the front and rear sides of the inner wall of the movable seat 1 on opposite sides. The surfaces of the two threaded rods 22 are threaded with threaded sleeves 23. Guide rods 24, which are arranged parallel to the two threaded rods 22, are fixedly connected between the front and rear sides of the inner wall of the movable seat 1.
[0033] Furthermore, the inner walls of the right ends of the two threaded sleeves 23 are slidably connected to the surface of the guide rod 24. The two threaded sleeves 23 are fixedly connected to the left and right ends of each other on the side away from each other. The four U-shaped connecting rods 8 extend to the front and rear sides of the outside of the movable seat 1 at the ends away from the threaded sleeves 23 and are slidably connected to them.
[0034] Specifically, a bevel gear ring 20 is rotatably connected at the center of the bottom of the inner wall of the movable seat 1. The bevel gear ring 20 serves as the core transmission component, with driven bevel gears 21, perpendicular to its axis, meshing on its top front and rear sides. When the bevel gear ring 20 rotates around the vertical axis, it drives the two driven bevel gears 21 to rotate around the horizontal axis. Threaded rods 22 are fixedly connected to the inner walls of both driven bevel gears 21, and the axial direction of the threaded rods 22 is parallel to the width direction of the movable seat 1. Another vertically arranged power bevel gear 25 is also meshed on the top left side of the bevel gear ring 20. A power motor 26 is fixedly installed on the bottom left side of the inner wall of the movable seat 1. The output shaft of the power motor 26 extends and is fixed to the power bevel gear 25 at its output end. When the power motor 26 starts, it drives the power bevel gear 25 to rotate, which in turn drives the bevel gear ring 20 meshing with it to rotate synchronously around the vertical axis at the bottom of the inner wall of the moving seat 1. As the bevel gear ring 20 rotates, the two driven bevel gears 21 on its top front and rear sides begin to rotate synchronously around their respective horizontal axes under vertical meshing. Since the threaded rod 22 is fixedly connected to the driven bevel gear 21, the two threaded rods 22 also rotate synchronously horizontally on the front and rear sides inside the moving seat 1. Each threaded rod 22 is threadedly connected to a threaded sleeve 23. At the same time, a guide rod 24 parallel to the threaded rod 22 is fixed between the front and rear sides of the inner wall of the moving seat 1 to provide linear guide support. The inner wall of the right end of the threaded sleeve 23 slides against the surface of the guide rod 24, restricting its movement to axial direction only and preventing it from rotating with the threaded rod 22. Therefore, when the threaded rod 22 rotates, the threaded sleeve 23 moves linearly along the threaded rod 22 under the action of its thread. Since the threads of the two threaded rods 22 are symmetrically arranged, the two threaded sleeves 23 can move towards the center or away from the sides simultaneously. Each threaded sleeve 23 has a U-shaped connecting rod 8 fixedly connected to its left and right outer ends, for a total of four U-shaped connecting rods 8. Their outer ends extend to the outside of the moving seat 1 and slide against the front and rear surfaces of the moving seat 1 to ensure smooth movement. When the two threaded sleeves 23 move closer to each other under the drive of the threaded rod 22, the U-shaped connecting rods 8 push the rectangular... The shell 7 moves synchronously towards the center, thereby driving the positioning clamp 18 installed on the top of the rectangular shell 7 to gradually approach the front and rear surfaces of the storage box 6 placed on the moving seat 1. Finally, the rubber pad 19 at the front end of the positioning clamp 18 tightly fits the front and rear outer walls of the storage box 6, achieving a stable clamping. The entire process is controlled by the controller 4 to start, stop and turn the power motor 26. The operator only needs to place the storage box 6 of the required size in place and start the equipment to automatically complete the clamping without manual adjustment. When changing to a storage box 6 of a different size, simply start the power motor 26 in reverse to make the two threaded sleeves 23 move in opposite directions. The U-shaped connecting rod 8 drives the rectangular shell 7 and the positioning clamp 18 to retract, so that the old box can be taken out, the new box can be put in and clamped again.
[0035] Furthermore, since the spacing between the front and rear surfaces of storage boxes 6 of different specifications is different, when it is necessary to fix storage boxes 6 of different specifications at the top center of the movable base 1, the spacing between the front and rear positioning clamps 18 needs to be adjusted. After the operator places the storage box 6 to be used on the top of the movable base 1, the power motor 26 is started through the controller 4. The started power motor 26 drives the power bevel gear 25 to rotate. When the power bevel gear 25 rotates with the power motor 26, it can drive the bevel gear ring 20 meshing with it to rotate vertically at the bottom of the inner wall of the movable base 1. When the bevel gear ring 20 rotates, the two driven bevel gears 21 set on the front and rear sides of its top rotate accordingly. Therefore, the rotation of the bevel gear ring 20 can drive the two driven bevel gears 21 to rotate synchronously. Since the top of the bevel gear ring 20 is vertically set between the two driven bevel gears 21, the rotation of the bevel gear ring 20 causes the two driven bevel gears 21 to rotate horizontally. When the two driven bevel gears 21 rotate horizontally on the front and rear sides inside the movable base 1, the two driven bevel gears 21 rotate synchronously. The threaded rods 22 on the inner wall of the bevel gear 21 rotate horizontally on the front and rear sides inside the movable seat 1. When the two threaded rods 22 rotate with the two driven bevel gears 21, the threaded sleeves 23 on the surface of the two threaded rods 22 rotate with the threaded rods 22. Since the two threaded sleeves 23 are slidably connected to the guide rod 24, when the two threaded rods 22 rotate, the two threaded sleeves 23 on the surface of the two threaded rods 22 can move closer or further away from each other along the surface of the threaded rods 22. When the power motor 26 rotates forward, the two threaded sleeves 23 move closer to each other along the surface of the threaded rods 22. When the two threaded sleeves 23 move closer to each other, they are connected by the U-shaped connecting rod 8 to drive the two rectangular shells 7 to move closer to the front and rear surfaces of the storage box 6 respectively. When the two rectangular shells 7 move closer to each other along the front and rear surfaces of the movable seat 1, they drive the two positioning clamps 18 to gradually move closer to the front and rear surfaces of the storage box 6 until the rubber pads 19 on the side of the two positioning clamps 18 that are close to each other are in contact with the front and rear surfaces of the storage box 6 respectively, so as to effectively fix the storage boxes 6 of different specifications.
[0036] Example 3
[0037] In the third embodiment of this utility model, a horizontal tube 9 is fixedly connected inside each of the two rectangular shells 7, which is parallel to the length direction of the movable seat 1. A plurality of vertical tubes 10 are fixedly connected to the top of each of the two horizontal tubes 9, which are equidistant from each other. The top of the plurality of vertical tubes 10 extends to the top of the rectangular shell 7 and is fixedly connected thereto. A piston plate 11 that moves up and down is slidably connected to the inner wall of the plurality of vertical tubes 10. An L-shaped connecting rod 12 is fixedly connected to the top of the plurality of piston plates 11. The end of the plurality of L-shaped connecting rods 12 away from the piston plate 11 extends to the top of the vertical tube 10 and is fixedly connected to the positioning clamp 18 on the side away from each other.
[0038] Furthermore, a sealing ring 13 is fixedly connected to the top of each of the multiple vertical tubes 10. The inner wall of the sealing ring 13 is slidably connected to the surface of the L-shaped connecting rod 12. A positioning shell 14 is fixedly connected to the left end of the outer wall of each of the two rectangular shells 7. An air pump 15 is fixedly connected inside each of the two positioning shells 14. An air extraction pipe 17 is fixedly connected to the air extraction end of each of the two air pumps 15. The end of each air extraction pipe 17 away from the air pump 15 extends to the outside of the positioning shell 14 and is fixedly connected thereto. An air supply pipe 16 is fixedly connected to the air outlet end of each of the two air pumps 15. The end of each air supply pipe 16 away from the air pump 15 extends to the inside of the rectangular shell 7 and is fixedly connected to the left end of each of the two horizontal tubes 9.
[0039] Specifically, each of the two rectangular shells 7 has a horizontal tube 9 fixedly connected inside, parallel to the length of the moving base 1. At the top of each horizontal tube 9, multiple equidistant vertical tubes 10 are fixedly connected. The vertical tubes 10 extend upwards and penetrate the top of the rectangular shell 7, communicating with the outside. A piston plate 11 is slidably connected to the inner wall of each vertical tube 10, allowing it to move vertically up and down along the inner wall of the vertical tube 10 under air pressure. An L-shaped connecting rod 12 is fixedly connected to the top of each piston plate 11. The vertical section of the L-shaped connecting rod 12 connects to the piston plate 11. When the piston plate 11 rises inside the vertical tube 10, it drives the positioning clamp 18 to move upwards via the L-shaped connecting rod 12. The clamping height can be adjusted by moving the vertical tube 10. To ensure airtightness, a sealing ring 13 is provided at the top of each vertical tube 10. The inner wall of the sealing ring 13 slides and seals with the surface of the L-shaped connecting rod 12, which allows the L-shaped connecting rod 12 to move smoothly up and down, and effectively prevents compressed air from leaking from the top of the vertical tube 10, ensuring the efficiency of air pressure drive. On the left end of the outer wall of the two rectangular shells 7, a positioning shell 14 is fixed, and an air pump 15 is installed inside. The air pump 15 has an air suction end connected to an air suction pipe 17 for sucking air from the environment, and its air outlet end is connected to the left end of the horizontal tube 9 on the same side through an air supply pipe 16 to deliver compressed air into the horizontal tube 9.
[0040] Furthermore, to further improve the fixing effect on storage boxes 6 of different sizes, after the distance between the two rectangular shells 7 is adjusted to a suitable distance, the operator simultaneously starts two air pumps 15 through the controller 4. After the two air pumps 15 are started, air is drawn from the environment through the air extraction pipe 17. The air drawn through the air extraction pipe 17 is delivered to the two air supply pipes 16 through the air pumps 15. The air delivered to the two air supply pipes 16 is delivered to the two horizontal pipes 9. As air is continuously filled into the two horizontal pipes 9, the air will enter the multiple vertical pipes 10. As the gas volume inside the multiple vertical pipes 10 continues to increase, it will push multiple piston plates 11 to move upward along the inner wall of the vertical pipes 10. When the multiple piston plates 11 move upward along the inner wall of the vertical pipes 10, they will push two positioning clamps 18 to move upward along the front and rear surfaces of the storage box 6 through multiple L-shaped connecting rods 12 until the two positioning clamps 18 are raised to a suitable height, thereby facilitating the effective fixing of storage boxes 6 of different heights.
[0041] Working principle:
[0042] The operator moves the trolley to the designated position by holding the push rod 3 and using the brake caster 2 at the bottom, and steps on the brake to lock it and prevent it from sliding. At this time, the controller 4 is in standby mode, the power motor 26 and the two air pumps 15 are not started, the positioning clamp 18 is in the initial retracted position, and the storage box 6 to be transported, regardless of its width or height specifications, is placed stably at the top center of the mobile seat 1.
[0043] The operator starts the power motor 26 via controller 4. The power motor 26 begins to run, and its output shaft drives the power bevel gear 25 to rotate around a vertical axis. The power bevel gear 25 meshes perpendicularly with the bevel ring 20, thereby driving the bevel ring 20 to rotate synchronously around the vertical axis at the bottom of the inner wall of the moving seat 1. The top front and rear sides of the bevel ring 20 mesh perpendicularly with two driven bevel gears 21, respectively. Therefore, the rotation of the bevel ring 20 drives the two driven bevel gears 21 to rotate around their respective horizontal axes. The threaded rods 22, fixedly connected to the inner walls of the two driven bevel gears 21, then rotate synchronously horizontally on both the front and rear sides inside the moving seat 1. Since the threaded sleeve 23 is threadedly connected to the threaded rod 22... The upper part of the threaded rod 22 is rotated by sliding fit with the guide rod 24, which restricts rotation and allows only axial movement. Therefore, the rotation of the threaded rod 22 is converted into the linear motion of the threaded sleeve 23 along the axial direction. When the power motor 26 rotates forward, the two threaded sleeves 23 move closer to each other along the threaded rod 22. The U-shaped connecting rods 8 fixedly connected to the left and right ends of each threaded sleeve 23 move towards the center, pushing the rectangular shells 7 on the front and rear sides to slide along the front and rear surfaces of the moving seat 1 and move towards the front and rear surfaces of the storage box 6. When the rectangular shells 7 move to contact the front and rear surfaces of the storage box 6, they continue to move forward, so that the rubber pads 19 on the positioning clamp 18 are tightly attached to the front and rear walls of the storage box 6, achieving lateral clamping.
[0044] To further improve the fixing effect of storage boxes 6 of different sizes, after the distance between the two rectangular shells 7 is adjusted to a suitable distance, the operator starts two air pumps 15 simultaneously through the controller 4. After the two air pumps 15 are started, air is drawn from the environment through the air extraction pipe 17. The air drawn through the air extraction pipe 17 is delivered to the two air supply pipes 16 through the air pumps 15. The air delivered to the two air supply pipes 16 is delivered to the two horizontal pipes 9. As air is continuously filled into the two horizontal pipes 9, the air will enter the multiple vertical pipes 10. As the gas volume inside the multiple vertical pipes 10 continues to increase, it will push multiple piston plates 11 to move upward along the inner wall of the vertical pipes 10. When the multiple piston plates 11 move upward along the inner wall of the vertical pipes 10, they will push two positioning clamps 18 to move upward along the front and rear surfaces of the storage box 6 through multiple L-shaped connecting rods 12 until the two positioning clamps 18 are raised to a suitable height, thereby facilitating the effective fixing of storage boxes 6 of different heights.
[0045] In summary, by using the combined power motor 26, power bevel gear 25, bevel gear ring 20, driven bevel gear 21, threaded rod 22, threaded sleeve 23, U-shaped connecting rod 8, rectangular shell 7, and positioning clamping plate 18, automatic, synchronous, and stable clamping of storage boxes 6 of different specifications is achieved. This solves the problems of traditional fixed storage structures being unable to be flexibly replaced and having poor adaptability, greatly improving the practicality, safety, and operational efficiency of toy transport trolleys.
[0046] The technical means employed in this application include protective measures based on common knowledge in the field, which can be additionally equipped on toy sales transport carts under different usage environments. These measures include, but are not limited to, the following: protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing.
[0047] It should be noted that (motor, screw, gear) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.
[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A toy sales transport cart, comprising a movable seat (1) and brake casters (2) fixedly disposed at its four bottom corners, wherein the movable seat (1) is a hollow rectangular structure, and a push rod (3) cooperating with the brake casters (2) is fixedly connected to one side of the top of the movable seat (1), characterized in that: The top center of the movable base (1) carries storage boxes (6) of different specifications. The top of the movable base (1) away from the storage box (6) is fixedly connected to a controller (4) that controls the entire device. The front and rear sides of the top of the movable base (1) are provided with positioning mechanisms for fixing storage boxes (6) of different specifications. The positioning mechanism includes rectangular shells (7) set on the front and rear surfaces of the storage box (6). The two rectangular shells (7) are fixedly connected to the left and right ends of the side away from each other with U-shaped connecting rods (8). The end of the U-shaped connecting rod (8) away from the rectangular shell (7) extends to the front and rear sides of the interior of the movable base (1) and is slidably connected to the front and rear surfaces of the movable base (1). The top of the two rectangular shells (7) is slidably connected to positioning clamps (18) that move up and down. The two positioning clamps (18) are fixedly connected to the side close to each other with rubber pads (19) that fit against the front and rear surfaces of the storage box (6).
2. The toy sales transport cart according to claim 1, characterized in that: A bevel gear ring (20) is rotatably connected at the bottom center of the inner wall of the movable seat (1). Both the front and rear sides of the top of the bevel gear ring (20) are meshed with driven bevel gears (21) arranged perpendicular to it. The inner walls of the two driven bevel gears (21) are fixedly connected with threaded rods (22) arranged parallel to the width direction of the movable seat (1).
3. A toy sales transport cart according to claim 2, characterized in that: The two threaded rods (22) are rotatably connected to the front and rear sides of the inner wall of the movable seat (1) on opposite sides. The surfaces of the two threaded rods (22) are threaded with threaded sleeves (23). The front and rear sides of the inner wall of the movable seat (1) are fixedly connected with guide rods (24) that are parallel to the two threaded rods (22).
4. A toy sales transport cart according to claim 3, characterized in that: The inner wall of the right end of the two threaded sleeves (23) is slidably connected to the surface of the guide rod (24). The two threaded sleeves (23) are fixedly connected to the left and right ends of the two threaded sleeves (23) on opposite sides. The four U-shaped connecting rods (8) extend to the front and rear sides of the outside of the movable seat (1) and are slidably connected to it.
5. A toy sales transport cart according to claim 2, characterized in that: The top left side of the bevel ring (20) is meshed with a power bevel gear (25) that is perpendicular to it. The bottom left side of the inner wall of the movable seat (1) is fixedly connected to a power motor (26). The output shaft of the power motor (26) extends to the inner wall of the power bevel gear (25) and is fixedly connected to it.
6. A toy sales transport cart according to claim 1, characterized in that: Both rectangular shells (7) are fixedly connected to a horizontal tube (9) that is parallel to the length direction of the moving seat (1). Both horizontal tubes (9) are fixedly connected to a plurality of vertical tubes (10) that are equidistantly arranged. The tops of the plurality of vertical tubes (10) extend to the top of the rectangular shell (7) and are fixedly connected thereto. The inner walls of the plurality of vertical tubes (10) are slidably connected to piston plates (11) that move up and down. The tops of the plurality of piston plates (11) are fixedly connected to L-shaped connecting rods (12). The ends of the plurality of L-shaped connecting rods (12) that are away from the piston plates (11) extend to the top of the vertical tubes (10) and are fixedly connected to the positioning clamp (18) on the side away from each other.
7. A toy sales transport cart according to claim 6, characterized in that: Each of the vertical tubes (10) is fixedly connected to a sealing ring (13) at its top. The inner wall of the sealing ring (13) is slidably connected to the surface of the L-shaped connecting rod (12). The left end of the outer wall of each of the two rectangular shells (7) is fixedly connected to a positioning shell (14). An air pump (15) is fixedly connected inside each of the two positioning shells (14). An air extraction pipe (17) is fixedly connected to the air extraction end of each of the two air pumps (15). The end of each air extraction pipe (17) away from the air pump (15) extends to the outside of the positioning shell (14) and is fixedly connected thereto. An air supply pipe (16) is fixedly connected to the air outlet end of each of the two air pumps (15). The end of each air supply pipe (16) away from the air pump (15) extends to the inside of the rectangular shell (7) and is fixedly connected to the left end of each of the two horizontal tubes (9).