A folding electric cart

Abstract

The utility model belongs to the field of cart technology especially is a folding electric cart, including the frame and the handrail of fixed setting in the top of frame, the bottom of frame is provided with walking mechanism, the bottom of frame is provided with the folding mechanism for accomodating walking mechanism, the top of damping mechanism is fixedly provided with the frame, the inside of frame is provided with the groove, is provided with the bearing plate in the inside of groove, bearing plate side is fixedly connected with the pull block, one end of frame is fixedly connected with the support block. The utility model discloses through the bearing plate and groove of installation convenient adjustment folding electric cart support area, when transporting bulky material, improve the support area of material, through pull block can pull bearing plate and move, after bearing plate moves out the frame through the groove, can spread out bearing plate, after bearing plate moves to the predetermined position, make the positioning screw and corresponding nut connection, and then can position the position of bearing plate, realize the purpose of adjusting support area.

Description

Technical Field

[0001] This utility model relates to the field of trolley technology, specifically a folding electric trolley. Background Technology

[0002] A folding electric trolley is a type of trolley that can be folded and stored, and is equipped with electric drive or assistance. It is used to move items within a small area. It can be used to carry shopping bags, groceries, etc. in supermarkets or markets, reducing the burden of carrying by hand. It is easy to carry after folding and can be used to move luggage, picnic supplies or equipment, and to move items and equipment in warehouses, exhibitions or campuses. It is usually designed to be lightweight, easy to carry and move, and is mostly used for low-speed short distances.

[0003] Patent document CN214728933U discloses a detachable and foldable electric trolley, comprising a left and right support rod spaced apart. A left drive wheel with a drive motor is mounted at the rear end of the left support rod. A first fixing member is fixedly attached to the left support rod. A right drive wheel with a drive motor is mounted at the rear end of the right support rod. A second fixing member, cooperating with the first fixing member, is fixedly attached to the right support rod to secure a sofa. A first connecting rod is hinged to the inner side of the left support rod, and a second connecting rod, corresponding to the position of the first connecting rod, is hinged to the inner side of the right support rod. The first and second connecting rods are hinged together to achieve folding of the trolley. This invention only requires bolts to fix the sofa to the trolley, and the width of the trolley can be adjusted by changing the length of the first and second connecting rods to accommodate sofas of different widths. Due to the foldable and detachable structure, the footprint is reduced.

[0004] However, the detachable and foldable electric trolleys mentioned above mainly consider the use of a foldable and detachable structure, thus reducing the footprint, but do not take into account the issue of expanding the support area for objects. When transporting large goods, the trolley does not provide sufficient support for the edges of the items, making the goods easy to be damaged during handling or travel. Therefore, it is necessary to develop a foldable electric trolley. Summary of the Invention

[0005] The purpose of this utility model is to provide a folding electric trolley to solve the technical problem mentioned in the background art of the inconvenience of adjusting the support area of ​​objects.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a folding electric trolley, comprising a frame and a handle fixedly mounted on the top of the frame, a walking mechanism at the bottom of the frame, a folding mechanism for storing the walking mechanism at the bottom of the frame, a shock-absorbing mechanism at the top of the frame, a frame fixedly mounted on the top of the shock-absorbing mechanism, a groove inside the frame, a load-bearing plate passing through the groove, a pulling block fixedly connected to the side of the load-bearing plate, a support block fixedly connected to one end of the frame, a positioning screw passing through the support block, nuts symmetrically arranged on the load-bearing plate, and the positioning screw threadedly connected to one of the nuts, a battery fixedly mounted on the bottom of the frame, a controller fixedly mounted on the handle, and a limiting mechanism for limiting the movement of objects fixedly mounted on the top of the frame.

[0007] Furthermore, the folding mechanism includes a support cylinder and a rotating shaft. The support cylinder is symmetrically embedded in the frame, and the rotating shaft is rotatably disposed inside the support cylinder.

[0008] Furthermore, the walking mechanism includes a support plate and a walking wheel. The support plate is symmetrically arranged inside the frame and is fixedly connected to one end of the rotating shaft. The walking wheel is rotatably mounted on the support plate through a bracket.

[0009] Furthermore, the frame has symmetrically arranged threaded holes inside, the support plate has positioning bolts corresponding to the threaded holes, and the positioning bolts are threadedly connected to the corresponding threaded holes. Magnetic blocks are embedded inside the frame.

[0010] Furthermore, the shock absorption mechanism includes a square frame, rubber blocks, connecting plates, guide blocks, and connecting blocks. The array of connecting blocks is arranged on the vehicle frame, and the square frame is fixedly connected to the connecting blocks. The connecting plates are symmetrically installed on the top and bottom of the rubber blocks. The connecting plate installed on the bottom of the rubber blocks is fixedly connected to the top of the vehicle frame. The array of guide blocks passes through the inside of the square frame, and the guide blocks are fixedly connected to the corresponding connecting plates. The rubber blocks pass through the inside of the square frame.

[0011] Furthermore, a hook is fixedly installed on the support block. The limiting mechanism includes a frame, a rotating rod, a take-up reel, a limiting band, a power motor, and a connecting hook. The frame is fixedly installed on the top of the vehicle frame. The rotating rod is rotatably installed inside the frame. The take-up reel is fixedly installed on the rotating rod. The limiting band is wound on the take-up reel, and one end of the limiting band extends out of the frame. The power motor is fixedly installed inside the frame, and the output end of the power motor is fixedly connected to the rotating rod. The connecting hook is fixedly connected to one end of the limiting band.

[0012] Furthermore, the rotating rod is provided with an array of locking blocks, and the internal thread of the frame is connected with limit bolts.

[0013] Furthermore, the bottom of the load-bearing plate is provided with a strip groove, and a support rod is rotatably connected inside the strip groove via a shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model facilitates the adjustment of the support area of ​​the folding electric trolley through the installed load-bearing plate and trough. When transporting large-volume materials, it increases the support area for the materials. The load-bearing plate can be moved by pulling the pull block. After the load-bearing plate moves out of the frame through the trough, it can be unfolded. After the load-bearing plate is moved to the predetermined position, the positioning screw is connected to the corresponding nut, thereby positioning the load-bearing plate and achieving the purpose of adjusting the support area. This makes it easy to adapt to the transportation and handling of objects of different volumes and improves the flexibility of the folding electric trolley.

[0015] 2. This utility model facilitates automatic restraint of objects through the installed frame and limiting strap. After placing the object on the frame, pulling the connecting hook will pull the limiting strap out of the frame. After the limiting strap is moved to the surface of the object, the hook connects with the connecting hook. Then, the power motor is controlled to drive the rotating rod to rotate. When the rotating rod rotates, the limiting strap can be wound up through the winding reel. Thus, the position of the object can be limited by the limiting strap, achieving the purpose of quickly limiting objects of different volumes, facilitating short-distance transportation, and effectively preventing objects from falling accidentally. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the frame structure of this utility model; Figure 3 This is a schematic diagram of the vehicle frame structure of this utility model; Figure 4 This is a schematic diagram of the support cylinder and rotating shaft structure of this utility model; Figure 5 This is a schematic diagram of the rubber block structure of this utility model; Figure 6 This is a schematic diagram of the load-bearing plate structure of this utility model; Figure 7 This is a schematic diagram of the frame structure of this utility model; Figure 8 This is a schematic diagram of the card block structure of this utility model.

[0017] In the diagram: 1. Frame; 2. Battery; 3. Handrail; 4. Controller; 5. Support cylinder; 6. Rotating shaft; 7. Threaded hole; 8. Support plate; 9. Wheel; 10. Positioning bolt; 11. Magnetic block; 12. Square frame; 13. Rubber block; 14. Connecting plate; 15. Guide block; 16. Connecting block; 17. Groove; 18. Load-bearing plate; 19. Nut; 20. Support block; 21. Positioning screw; 22. Frame; 23. Pulling block; 24. Hook; 25. Frame body; 26. Rotating rod; 27. Reel; 28. Limiting belt; 29. ​​Power motor; 30. Clamping block; 31. Limiting bolt; 32. Connecting hook; 33. Strip groove; 34. Support rod. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 7A folding electric trolley includes a frame 1 and a handle 3 fixedly mounted on the top of the frame 1. A walking mechanism is located at the bottom of the frame 1, and a folding mechanism for storing the walking mechanism is also located at the bottom of the frame 1. A shock-absorbing mechanism is located at the top of the frame 1, and a frame 22 is fixedly mounted on the top of the shock-absorbing mechanism. A groove 17 is located inside the frame 22, and a load-bearing plate 18 passes through the groove 17. A pulling block 23 is fixedly connected to the side of the load-bearing plate 18. A support block 20 is fixedly connected to one end of the frame 1. A positioning screw 21 is inserted inside the frame 1. Nuts 19 are symmetrically arranged on the load-bearing plate 18, and the positioning screw 21 is threadedly connected to one of the nuts 19 in its pull block. A battery 2 is fixedly installed at the bottom of the frame 1, and a controller 4 is fixedly installed on the handlebar 3. A limiting mechanism for limiting the position of objects is fixedly installed at the top of the frame 1. When transporting objects using the folding electric trolley, the object to be transported is placed on the frame 22, and the handlebar 3 is pushed to move the frame 1 through the cooperation of the walking mechanism, thereby allowing the position of the supported object to be rotated. The transport mechanism, in conjunction with a shock-absorbing mechanism, can provide shock absorption to prevent vibration damage to objects. When transporting large-volume materials, it increases the support area for the materials. The load-bearing plate 18 can be moved by the pull block 23. After the load-bearing plate 18 moves out of the frame 22 through the groove 17, it can be unfolded. After the load-bearing plate 18 is moved to the predetermined position, the positioning screw 21 is connected to the corresponding nut 19, thereby positioning the load-bearing plate 18 and adjusting the support area. This facilitates the transport of objects of different volumes. With the help of a limiting mechanism, the transported objects can be restrained and limited, thereby improving the stability of the objects and preventing them from falling accidentally during transport. This also improves the flexibility of the folding electric trolley. After the objects are transported, the walking mechanism can be folded and stored using the folding mechanism. The length of the handle 3 is adjustable (existing technology), which reduces the area occupied by the folding electric trolley. The battery 2 and the controller 4 are electrically connected to the electronic equipment on the folding electric trolley and can control the operation of the folding electric trolley.

[0020] Please see Figure 4 The folding mechanism includes a support cylinder 5 and a rotating shaft 6. The support cylinder 5 is symmetrically embedded in the frame 1, and the rotating shaft 6 is rotatably disposed inside the support cylinder 5. The support cylinder 5 facilitates the rotation of the rotating shaft 6. The rotating shaft 6 can be limited by the support cylinder 5, so that the rotating shaft 6 can rotate inside the support cylinder 5. Through the cooperation of the rotating shaft 6 and the support cylinder 5, the support plate 8 can be rotated around the center line, and the angle of the support plate 8 can be adjusted.

[0021] Please see Figure 3 and Figure 4The walking mechanism includes a support plate 8 and walking wheels 9. The support plate 8 is symmetrically arranged inside the frame 1 and is fixedly connected to one end of the rotating shaft 6. The walking wheels 9 are rotatably mounted on the support plate 8 through a bracket. The angle of the two walking wheels 9 installed on the front side of the frame 1 can be adjusted by more than 360 degrees. With the help of the handle 3, the movement trajectory of the folding electric trolley can be adjusted. The two walking wheels 9 installed on the rear side are equipped with hub motors. The movement of the walking wheels 9 can be controlled by the controller 4.

[0022] Please see Figure 3 and Figure 4 The frame 1 has symmetrically arranged threaded holes 7 inside. A positioning bolt 10 corresponding to the threaded hole 7 passes through the support plate 8, and the positioning bolt 10 is threadedly connected to the corresponding threaded hole 7. A magnetic block 11 is embedded inside the frame 1. Through the cooperation of the support plate 8, the angle of the traveling wheel 9 can be adjusted. When using the traveling wheel 9, the position of the support plate 8 is moved so that the support plate 8 is perpendicular to the threaded hole 7, and the positioning bolt 10 is rotated to thread into the threaded hole 7. Thus, the position of the traveling wheel 9 can be positioned through the support plate 8, facilitating the support of the traveling wheel 9. When the support frame 1 moves, the positioning bolt 10 is removed, and the position of the support plate 8 is no longer positioned. One end of the rotating shaft 6 is fixedly connected to the middle of the short side of the support plate 8. The support plate 8 moves in an arc shape through the cooperation of the rotating shaft 6 and the support cylinder 5. After the support plate 8 moves 90 degrees, the brackets of the support plate 8 and the support wheels 9 are made of magnetic material. After the brackets of the support plate 8 and the support wheels 9 come into contact with the magnetic block 11, the position of the support plate 8 will be limited, thereby achieving the purpose of storing the wheels 9. The support plate 8 is located on one side of the magnetic block 11.

[0023] Please see Figure 1 and Figure 5 The shock absorption mechanism includes a square frame 12, rubber blocks 13, connecting plates 14, guide blocks 15, and connecting blocks 16. The connecting blocks 16 are arranged in an array on the frame 1. The square frame 12 is fixedly connected to the connecting blocks 16. The connecting plates 14 are symmetrically installed at the top and bottom of the rubber blocks 13. The connecting plate 14 installed at the bottom of the rubber blocks 13 is fixedly connected to the top of the frame 1. The guide blocks 15 are arranged in an array inside the square frame 12, and the guide blocks 15 are fixedly connected to the corresponding connecting plates 14. The rubber blocks 13 are arranged inside the square frame 12. The connecting plate 14 mounted on top of the rubber block 13 is fixedly connected to the bottom of the frame 22. The frame 1 can support the frame 22 through the cooperation of the rubber block 13 and the connecting plate 14. When transporting objects, the impact force of the objects is applied downwards and transmitted to the rubber block 13 through the connecting plate 14. The rubber block 13 can perform shock absorption to avoid damage to the objects. At the same time, when the rubber block 13 deforms, the guide block 15 will slide on the square frame 12, thereby guiding the rubber block 13 and making the rubber block 13 move smoothly for buffering and shock absorption.

[0024] Please see Figure 1 and Figure 7 The support block 20 is fixedly equipped with a hook 24. The limiting mechanism includes a frame 25, a rotating rod 26, a take-up reel 27, a limiting band 28, a power motor 29, and a connecting hook 32. The frame 25 is fixedly installed on the top of the frame 1. The rotating rod 26 is rotatably installed inside the frame 25. The take-up reel 27 is fixedly installed on the rotating rod 26, and the limiting band 28 is wound around the take-up reel 27, with one end of the limiting band 28 extending out of the frame 25. The power motor 29 is fixedly installed inside the frame 25, and the output end of the power motor 29 is fixedly connected to the rotating rod 26. The connecting hook 32 is connected to the limiting band 28. The end is fixedly connected, and the support block 20 provides installation space for the hook 24. After the object is placed on the frame 22, pulling the connecting hook 32 will pull the limiting strap 28 out of the frame 25. After the limiting strap 28 is moved to the surface of the object, the hook 24 is connected to the connecting hook 32. Then, the power motor 29 is controlled to drive the rotating rod 26 to rotate. When the rotating rod 26 rotates, the limiting strap 28 can be wound up through the winding reel 27. Thus, the position of the object can be limited by the limiting strap 28, so as to quickly limit the position of objects of different volumes, which is convenient for short-distance transportation and can effectively prevent objects from falling accidentally.

[0025] Please see Figure 7 and Figure 8 The rotating rod 26 is provided with a series of locking blocks 30. The frame 25 is internally threaded with limiting bolts 31. After the limiting band 28 is wound up, the limiting bolts 31 are rotated to move their position. One end of the limiting bolts 31 is inserted into the gap between the locking blocks 30. The locking blocks 30 can be used to limit the position of the rotating rod 26, thereby preventing the collected limiting band 28 from becoming loose.

[0026] Please see Figure 1 and Figure 6 The bottom of the load-bearing plate 18 is provided with a strip groove 33. A support rod 34 is rotatably connected inside the strip groove 33 via a shaft. After the load-bearing plate 18 is moved to the outside, one end of the support rod 34 can rotate in an arc shape, and the length of the support rod 34 can be adjusted. The side of the frame 1 is provided with holes corresponding to the support rod 34. By adjusting the support rod 34, it can be inserted into the corresponding hole, and the position of the support rod 34 can be positioned. In this way, the support rod 34 will support the edge of the load-bearing plate 18, ensuring the support strength.

[0027] Working principle: When using the folding electric trolley to transport objects, the object to be transported is placed on the frame 22. Pushing the handle 3, in conjunction with the wheels 9, moves the frame 1, allowing the supported object to be moved. During transport, the impact force of the object is applied downwards and transmitted to the rubber block 13 through the connecting plate 14. The rubber block 13 provides shock absorption, preventing damage to the object. Simultaneously, when the rubber block 13 deforms, the guide block 15 slides on the square frame 12, guiding the rubber block 13 and ensuring smooth movement for cushioning and shock absorption, preventing vibration damage to the object. When transporting large materials, the support area is increased. Pulling the block 23 moves the load-bearing plate 18. After the load-bearing plate 18 moves out of the frame 22 through the groove 17, it can... After unfolding the load-bearing plate 18 and moving it to the predetermined position, the positioning screw 21 is connected to the corresponding nut 19, thereby positioning the load-bearing plate 18 and adjusting the support area. This facilitates the transportation of objects of different volumes. With the help of the limiting mechanism, the transported object can be restrained and limited, thereby improving the stability of the object and preventing it from falling accidentally during transport. This also improves the flexibility of the folding electric trolley. After transporting the object, the positioning bolt 10 is removed, and the position of the support plate 8 is no longer positioned. The support plate 8 moves in an arc shape through the cooperation of the rotating shaft 6 and the support cylinder 5. After the support plate 8 moves 90 degrees, it is made of magnetic material. When it comes into contact with the magnetic block 11, the position of the support plate 8 is limited, thereby achieving the purpose of storing the traveling wheels 9.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A folding electric trolley, comprising a frame (1) and a handle (3) fixedly mounted on the top of the frame (1), characterized in that: The frame (1) is provided with a walking mechanism at the bottom and a folding mechanism for storing the walking mechanism at the bottom. The frame (1) is provided with a shock-absorbing mechanism at the top and a frame (22) is fixedly provided at the top of the shock-absorbing mechanism. The frame (22) is provided with a groove (17) inside and a load-bearing plate (18) is inserted inside the groove (17). A pulling block (23) is fixedly connected to the side of the load-bearing plate (18). A support block (20) is fixedly connected to one end of the frame (1). A positioning screw (21) is inserted inside the support block (20). Nuts (19) are symmetrically arranged on the load-bearing plate (18), and the positioning screw (21) is threadedly connected to one of the nuts (19). A battery (2) is fixedly provided at the bottom of the frame (1). A controller (4) is fixedly installed on the armrest (3). A limiting mechanism for limiting the object is fixedly provided at the top of the frame (1).

2. The folding electric trolley according to claim 1, characterized in that: The folding mechanism includes a support cylinder (5) and a rotating shaft (6). The support cylinder (5) is symmetrically embedded in the frame (1), and the rotating shaft (6) is rotatably disposed inside the support cylinder (5).

3. A folding electric trolley according to claim 2, characterized in that: The walking mechanism includes a support plate (8) and a walking wheel (9). The support plate (8) is symmetrically arranged inside the frame (1), and the support plate (8) is fixedly connected to one end of the rotating shaft (6). The walking wheel (9) is rotatably mounted on the support plate (8) through a bracket.

4. A folding electric trolley according to claim 3, characterized in that: The frame (1) has symmetrically arranged threaded holes (7) inside, and the support plate (8) is provided with positioning bolts (10) corresponding to the threaded holes (7), and the positioning bolts (10) are threadedly connected to the corresponding threaded holes (7). The frame (1) is inlaid with magnetic blocks (11).

5. A folding electric trolley according to claim 1, characterized in that: The shock absorption mechanism includes a square frame (12), rubber blocks (13), connecting plates (14), guide blocks (15), and connecting blocks (16). The connecting blocks (16) are arranged in an array on the frame (1). The square frame (12) is fixedly connected to the connecting blocks (16). The connecting plates (14) are symmetrically installed on the top and bottom of the rubber blocks (13). The connecting plates (14) installed on the bottom of the rubber blocks (13) are fixedly connected to the top of the frame (1). The guide blocks (15) are arranged in an array inside the square frame (12). The guide blocks (15) are fixedly connected to the corresponding connecting plates (14). The rubber blocks (13) are arranged inside the square frame (12).

6. A folding electric trolley according to claim 1, characterized in that: The support block (20) is fixedly provided with a hook (24). The limiting mechanism includes a frame (25), a rotating rod (26), a take-up reel (27), a limiting belt (28), a power motor (29), and a connecting hook (32). The frame (25) is fixedly provided on the top of the frame (1). The rotating rod (26) is rotatably provided inside the frame (25). The take-up reel (27) is fixedly provided on the rotating rod (26). The limiting belt (28) is wound on the take-up reel (27), and one end of the limiting belt (28) extends out of the frame (25). The power motor (29) is fixedly provided inside the frame (25), and the output end of the power motor (29) is fixedly connected to the rotating rod (26). The connecting hook (32) is fixedly connected to one end of the limiting belt (28).

7. A folding electric trolley according to claim 6, characterized in that: The rotating rod (26) is provided with a series of locking blocks (30), and the frame (25) is internally connected with a limit bolt (31).

8. A folding electric trolley according to claim 1, characterized in that: The bottom of the load-bearing plate (18) is provided with a strip groove (33), and a support rod (34) is rotatably connected inside the strip groove (33) via a shaft.

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