Folding shopping cart

Abstract

The utility model relates to the technical field of shopping carts, in particular to a folding shopping cart which comprises a bottom plate, a top frame, a pair of folding plates and a pair of turning plates, the bottom plate is provided with a containing groove, the folding plates and the turning plates are connected between the bottom plate and the top frame, each folding plate comprises a first side plate and a second side plate, and the first side plates are hinged to the second side plates; the other end of the first side plate is hinged to the top frame, the other end of the second side plate is hinged to the bottom plate, one end of each turning plate is rotationally connected to the top frame, the surface of the side, away from the other turning plate, of each turning plate abuts against the groove wall of the containing groove, and the two ends, along the turning plate rotating axis, of each turning plate abut against the surface of the side, facing the other folding plate, of the corresponding folding plate correspondingly. When the folding shopping cart is not used, the turning plate is turned towards the inner side of the appointed shopping cart, the first side plate and the second side plate are folded towards the inner side of the folding shopping cart, the top frame and the bottom plate are close to each other, the foldability of the folding shopping cart is achieved, and the space occupied by the folding shopping cart when the folding shopping cart is not used is reduced.

Description

Technical Field

[0001] This application relates to the technical field of shopping carts, and more particularly to a folding shopping cart. Background Art

[0002] Shopping carts are a commonly used tool when people go shopping. Especially when carrying some heavy items, shopping carts bring great convenience to people.

[0003] Traditional shopping cart designs usually adopt a rigid body and wheels. This design makes the size of the shopping cart fixed and unable to be folded. When the shopping cart is not needed, consumers usually need to find a fixed storage space to store the shopping cart, which brings additional trouble to consumers. Especially in environments with limited space such as homes or offices, storing the shopping cart becomes an important issue. Summary of the Utility Model

[0004] In order to achieve the foldability of the shopping cart and reduce the space occupied when the shopping cart is not in use, this application provides a folding shopping cart.

[0005] A folding shopping cart provided by this application adopts the following technical solutions:

[0006] A folding shopping cart includes a bottom plate, a top frame, folding plates, and flap plates. The bottom plate is provided with a receiving groove. There are a pair of folding plates and a pair of flap plates. The folding plates are connected between the bottom plate and the top frame. Each folding plate includes a first side plate and a second side plate. The first side plate and the second side plate are hinged to each other. The other end of the first side plate is hinged to the top frame, and the other end of the second side plate is hinged to the bottom plate. One end of the flap plate is rotatably connected to the top frame. The surface of the flap plate away from the other flap plate abuts against the wall of the receiving groove. The two ends of the flap plate along the axis of rotation of the flap plate respectively abut against the surface of the folding plate facing the other folding plate.

[0007] By adopting the above technical solutions, when not in use, the flap plate is flipped towards the inside of the designated shopping cart, and the first side plate and the second side plate are folded towards the inside of the folding shopping cart, so that the top frame and the bottom plate approach each other, realizing the foldability of the folding shopping cart and reducing the space occupied when the folding shopping cart is not in use.

[0008] Preferably, a card slot is provided at the end of the flap plate away from the top frame. The card slot is located on the side of the flap plate close to the other flap plate. A clamping block is connected to the bottom of the receiving groove. One end of the clamping block along the direction perpendicular to the axis of rotation of the flap plate and close to the other flap plate is provided with a first chamfer for the lower end of the side of the flap plate away from the other flap plate to abut against. The side of the clamping block away from the first chamfer is provided with a second chamfer for the wall of the card slot to abut against.

[0009] By adopting the above technical solution, the clamping block is embedded in the clamping groove, and the second chamfer abuts against the groove wall of the clamping groove, so that the surface of the flap away from the other flap realizes the locking of the flap and the bottom plate, and improves the structural strength of the shopping cart.

[0010] Preferably, a first rotating groove is provided on one side of the first side plate close to the top frame. A first fixing seat is connected to the lower end of the top frame. The first fixing seat is rotationally embedded in the first rotating groove. The rotation axis of the first fixing seat coincides with the hinge axis of the first side plate and the top frame. The width of the first fixing seat along the rotation axis of the first side plate is smaller than the width of the first rotating groove along the rotation axis of the first side plate. A limiting block is connected to the groove wall of the first rotating groove. The other end of the limiting block is inclined towards the bottom of the first rotating groove. The limiting block is used to abut against the side plate of the first fixing seat. A second rotating groove is provided on one side of the second side plate close to the bottom plate. A second fixing seat is connected to the bottom of the accommodating groove. The second fixing seat is rotationally embedded in the second rotating groove. The rotation axis of the second fixing seat coincides with the hinge axis of the second side plate and the bottom plate. The width of the second fixing seat along the rotation axis of the second side plate is smaller than the width of the second rotating groove along the rotation axis of the second side plate.

[0011] By adopting the above technical solution, the width of the first rotating groove is larger than the width of the first fixing seat. The limiting block is provided to abut against the side plate of the first fixing seat. The end of the limiting block away from the groove wall of the first rotating groove is inclined towards the bottom of the first rotating groove. The width of the second rotating groove is larger than the width of the second fixing seat, which facilitates the installation and disassembly between the first side plate and the top frame and between the second side plate and the bottom plate.

[0012] Preferably, the hinge axis of the first side wall and the second side plate is located on the side of the folding plate away from the other folding plate. An abutting groove is provided at one end of the first side plate facing the other folding plate close to the second side plate. An abutting block is connected to one end of the second side plate close to the first side plate. The abutting block is embedded in the abutting groove.

[0013] By adopting the above technical solution, the abutting groove and the abutting block are provided to realize the limitation of the first side plate and the second side plate, which facilitates the inner surfaces of the first side plate and the second side plate to be flush and improves the connection stability between the first side plate and the second side plate.

[0014] Preferably, it further includes a cover plate. An inner ring groove is provided on the inner wall of the top frame away from the bottom plate. The inner ring groove is used for the cover plate to be embedded.

[0015] By adopting the above technical solution, the cover plate is provided to prevent external objects from touching the items in the folding shopping cart and reduce the possibility of damage to the objects in the folding shopping cart.

[0016] Preferably, it further includes a locking member. A fixing groove is provided on the inner ring groove wall. The locking member is slidably connected to the cover plate, and the locking member is embedded in the fixing groove to realize the relative fixation of the cover plate and the top frame.

[0017] By adopting the above technical solution, the locking member is provided. The locking member is embedded in the fixing groove to realize the relative fixation of the cover plate and the top frame, reducing the possibility of the box cover being lost during handling.

[0018] Preferably, it further includes two lifting handles. The two lifting handles are rotatably embedded in the inner ring groove, and the two lifting handles are symmetrically distributed along the length direction of the cover plate.

[0019] By adopting the above technical solution, the lifting handles are provided, increasing the flexibility of handling the folding shopping cart. The folding shopping cart can be carried by lifting the two lifting handles with one hand.

[0020] Preferably, an avoidance groove is provided on the side wall of the cover plate. The avoidance groove is located on the side of the cover plate away from the bottom of the inner ring groove. The number of avoidance grooves is the same as that of the lifting handles and they correspond one by one. The inner walls of the avoidance grooves are opposite to the inner walls of the lifting handles.

[0021] By adopting the above technical solution, it is convenient to take out the lifting handles when the cover plate is closed, improving the practicality of the folding shopping cart.

[0022] Preferably, it further includes universal wheels and a pull rod. The pull rod is rotatably connected to the top frame, the universal wheels are connected to the bottom plate, and several universal wheels are circumferentially spaced apart along the bottom plate.

[0023] By adopting the above technical solution, the universal wheels and the pull rod are provided, improving the flexibility of handling the folding shopping cart. The folding shopping cart can be moved by pulling the pull rod to drive the universal wheels to roll, improving the comfort of use for the user.

[0024] Preferably, a holding groove is provided on the side of the flap away from the other flap, and the holding groove penetrates through the flap.

[0025] By adopting the above technical solution, the holding grooves are provided for the palms to be inserted. The two hands can be respectively inserted into the two holding grooves to carry the folding shopping cart.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When not in use, the flap is flipped towards the inside of the designated shopping cart, and the first side plate and the second side plate are folded towards the inside of the folding shopping cart, so that the top frame and the bottom plate approach each other, realizing the foldability of the folding shopping cart and reducing the space occupied by the folding shopping cart when not in use;

[0028] 2. The width of the first rotating groove is greater than the width of the first fixing seat. A limiting block is provided to abut against the side plate of the first fixing seat. One end of the limiting block away from the groove wall of the first rotating groove is inclined towards the side close to the bottom of the first rotating groove. The width of the second rotating groove is greater than the width of the second fixing seat, which facilitates the installation and disassembly between the first side plate and the top frame and between the second side plate and the bottom plate.

[0029] 3. An abutting groove and an abutting block are provided to limit the first side plate and the second side plate, facilitating the inner surfaces of the first side plate and the second side plate to be flush, and improving the connection stability between the first side plate and the second side plate. Description of the Drawings

[0030] Figure 1 It is a schematic structural diagram of the bottom plate, the top frame, the flap and the folding plate.

[0031] Figure 2 It is a schematic structural diagram of the folding shopping cart.

[0032] Figure 3 It is a partial cross-sectional view of the folding shopping cart.

[0033] Figure 4 It is a partial cross-sectional view of the folding shopping cart.

[0034] Figure 5 It is a partial cross-sectional view of the folding shopping cart.

[0035] Figure 6 It is a partial cross-sectional view of the folding shopping cart.

[0036] Figure 7 It is a partial cross-sectional view of the cover plate and the locking member.

[0037] Figure 8 It is a schematic structural diagram of the folding shopping cart from another perspective.

[0038] Description of the Reference Numerals:

[0039] 1. Bottom plate; 11. Accommodating groove; 12. Second fixing seat; 13. Connecting seat; 131. Clamping block; 1311. First chamfer; 1312. Second chamfer; 14. Lower limiting seat; 141. Lower limiting groove

[0040] 2. Top frame; 21. Retaining ring; 22. First fixing seat; 23. Embedded groove; 24. Third fixing seat; 25. Inner ring groove; 26. Fixing groove; 27. Outer ring groove; 28. Upper limiting seat; 281. Upper limiting groove

[0041] 3. Flap; 31. Third rotating seat; 311. Third rotating groove; 312. Third rotating shaft; 3121. Sixth chamfer; 32. Card slot; 33. Third weight-reducing groove; 34. Holding groove; 35. Third convex block; 36. Third reinforcing rib

[0042] 4. Folding plate; 41. First side plate; 411. First rotating seat; 4111. First rotating groove; 4112. First rotating shaft; 41121. Fifth chamfer; 4113. Limiting block; 412. First weight-reducing groove; 413. First convex block; 414. First reinforcing rib; 415. Abutting groove; 416. Connecting plate; 42. Second side plate; 421. Second rotating seat; 4211. Second rotating groove; 4212. Second rotating shaft; 422. Second weight-reducing groove; 423. Second convex block; 424. Second reinforcing rib; 425. Abutting block;

[0043] 5. Cover plate; 51. Insert block; 511. Groove; 52. Avoidance groove; 53. Sliding groove; 54. Connecting groove; 55. Tightening block; 551. Third chamfer;

[0044] 6. Lifting handle; 61. Connecting rod; 62. Rotating rod;

[0045] 7. Locking member; 71. Fixed part; 72. Pushing part; 73. Elastic part; 731. Fourth chamfer;

[0046] 8. Pull rod; 81. Connecting section; 82. Rotating section;

[0047] 9. Universal wheel. Detailed implementation manners

[0048] The present application will be further described in detail below with reference to the accompanying drawings.

[0049] Refer to Figure 1 , an embodiment of the present application discloses a folding shopping cart including a bottom plate 1 and a top frame 2. The top frame 2 is located above the bottom plate 1. A receiving groove 11 is provided on one side of the bottom plate 1 facing the top frame 2. A retaining ring 21 is fixedly connected to the outer periphery of the side of the top frame 2 close to the bottom plate 1, and the outer wall of the retaining ring 21 is flush with the outer wall of the top frame 2.

[0050] Refer to Figure 1 and Figure 2 , a folding shopping cart further includes a folding plate 4. The folding plate 4 is connected between the top frame 2 and the bottom plate 1. There are a pair of folding plates 4, and the folding plates 4 are symmetrically distributed along the width direction of the top frame 2.

[0051] The folding plate 4 includes a first side plate 41. The length directions of the first side plate 41 and the second side plate 42 are parallel to the length direction of the bottom plate 1. One end of the first side plate 41 close to the top frame 2 is fixedly connected with a first rotating seat 411. A plurality of first rotating grooves 4111 are provided on one side of the first rotating seat 411 close to the top frame 2. The plurality of first rotating grooves 4111 are evenly distributed along the length direction of the first side plate 41. In this embodiment, six first rotating grooves 4111 are provided. A plurality of first fixing seats 22 are fixedly connected to the lower end of the top frame 2. The number of the first fixing seats 22 is the same as that of the first rotating grooves 4111 and they correspond one by one. The first fixing seats 22 are rotatably embedded in the first rotating grooves 4111, and the rotation axis of the first fixing seats 22 is parallel to the length direction of the first side plate 41.

[0052] Referring to Figure 1 and Figure 3 , the width of the first rotating groove 4111 along the length direction of the first rotating seat 411 is greater than the width of the first fixing seat 22 along the length direction of the first rotating seat 411. A first rotating shaft 4112 is fixedly connected to the groove wall of the first rotating groove 4111. The axis of the first rotating shaft 4112 is parallel to the length direction of the first side plate 41. One end of the first rotating shaft 4112 along the axis direction of the first rotating shaft 4112 is fixedly connected to the groove wall of the first rotating groove 4111, and there is a gap between the other end of the first rotating shaft 4112 and the groove wall of the first rotating groove 4111. The first rotating shaft 4112 is hinged to the first fixing seat 22. A limiting block 4113 is fixedly connected to the other side groove wall of the first rotating groove 4111. One end of the limiting block 4113 close to the first rotating shaft 4112 is inclined towards the side close to the bottom of the first rotating groove 4111. The limiting block 4113 is used to abut against the side wall of the first fixing seat 22. A fifth chamfer 41121 is provided at one end of the first rotating shaft 4112 close to the limiting block 4113. The fifth chamfer 41121 is located on the side of the first rotating shaft away from the first rotating groove 4111. The fifth chamfer 41121 is used for the end of the first fixing seat 22 away from the top frame 2 to abut against.

[0053] Referring to Figure 1 and Figure 2 , a first weight-reducing groove 412 is provided on the side of the first side plate 41 away from the other folding plate 4. A plurality of first convex blocks 413 are fixedly connected to the bottom of the first weight-reducing groove 412. The plurality of first convex blocks 413 are evenly distributed along the length direction of the first side plate 41. In this embodiment, three first convex blocks 413 are provided. A first reinforcing rib 414 is provided between two first convex blocks 413. The length direction of the first reinforcing rib 414 is parallel to the width direction of the first side plate 41. Both ends of the first reinforcing rib 414 along the length direction of the first reinforcing rib 414 are respectively fixedly connected to the groove walls of the first weight-reducing groove 412. In this embodiment, one first reinforcing rib 414 is provided between two first convex blocks 413.

[0054] Referring to Figure 1 andFigure 4 Moreover, the folding plate 4 further includes a second side plate 42. One end of the second side plate 42 away from the bottom plate 1 is hinged to one end of the first side plate 41 away from the top frame 2. The hinge axis of the first side plate 41 and the second side plate 42 is located on the side of the folding plate 4 away from the other folding plate 4. A plurality of abutting grooves 415 are provided at one end of the first side plate 41 facing the other folding plate 4 and close to the second side plate 42. The plurality of abutting grooves 415 are evenly distributed along the length direction of the first side plate 41. In this embodiment, four abutting grooves 415 are provided. A connecting plate 416 is fixedly connected to the bottom of the abutting groove 415. The number of the connecting plates 416 is the same as that of the abutting grooves 415 and they correspond to each other one by one. One end of the connecting plate 416 close to the first rotating seat 411 is fixedly connected to the groove wall of the abutting groove 415 on the side close to the first rotating seat 411. A plurality of abutting blocks 425 are fixedly connected to one end of the second side plate 42 close to the first side plate 41. The number of the abutting blocks 425 is the same as that of the abutting grooves 415 and they correspond to each other one by one. The abutting blocks 425 are embedded in the abutting grooves 415. The surface of one side of the abutting blocks 425 away from the other folding plate 4 abuts against one end of the connecting plate 416 away from the bottom of the abutting groove 415.

[0055] One end of the second side plate 42 close to the bottom plate 1 is fixedly connected to a second rotating seat 421. A plurality of second rotating grooves 4211 are provided on one side of the second rotating seat 421 away from the second side plate 42. The plurality of second rotating grooves 4211 are evenly distributed along the length direction of the second side plate 42. In this embodiment, four second rotating grooves 4211 are provided. A plurality of second fixing seats 12 are fixedly connected to the bottom of the accommodating groove 11. The number of the second fixing seats 12 is the same as that of the second rotating grooves 4211 and they correspond to each other one by one. The second fixing seats 12 are rotatably embedded in the second rotating grooves 4211. The rotation axis of the second fixing seats 12 is parallel to the length direction of the second side plate 42. The width of the second rotating groove 4211 along the length direction of the second rotating seat 421 is greater than the width of the second fixing seat 12 along the length direction of the second rotating seat 421. A second rotating shaft 4212 is fixedly connected to the groove wall of the second rotating groove 4211. The axis of the second rotating shaft 4212 is parallel to the length direction of the second side plate 42. Two ends of the second rotating shaft 4212 along the axis direction of the second rotating shaft 4212 are respectively fixedly connected to the groove wall of the second rotating groove 4211. The second fixing seat 12 is hinged to the second rotating shaft 4212.

[0056] Refer to Figure 1 and Figure 2, on the side of the second side plate 42 away from the other folding plate 4, there is a second weight-reducing groove 422. At the bottom of the second weight-reducing groove 422, several second bumps 423 are fixedly connected. The several second bumps 423 are evenly distributed along the length direction of the second side plate 42. In this embodiment, there are three second bumps 423. A second reinforcing rib 424 is provided between two second bumps 423. The length direction of the second reinforcing rib 424 is parallel to the width direction of the second side plate 42. The two ends of the second reinforcing rib 424 along the length direction of the second reinforcing rib 424 are respectively fixedly connected to the wall of the second weight-reducing groove 422. In this embodiment, there is one second reinforcing rib 424 between two second bumps 423.

[0057] A folding shopping cart further includes a flap 3. There is a pair of flaps 3, which are symmetrically distributed along the length direction of the top frame 2. The length direction of the flap 3 is parallel to the width direction of the top frame 2. The two ends of the flap 3 along the length direction of the flap 3 are respectively abutted against the surface of the two folding plates 4 facing the other folding plate 4. One end of the flap 3 close to the top frame 2 is hinged to the top frame 2. The surface of the flap 3 away from the other flap 3 abuts against the wall of the receiving groove 11. On one side of the inner wall of the top frame 2 close to the bottom plate 1, there is an embedding groove 23. The number of embedding grooves 23 is the same as and corresponds one by one to the number of flaps 3.

[0058] Refer to Figure 1 and Figure 5 , one end of the flap 3 close to the top frame 2 is fixedly connected with a third rotating seat 31. On the side of the third rotating seat 31 away from the flap 3, several third rotating grooves 311 are provided. The several third rotating grooves 311 are spaced along the length direction of the flap 3. In this embodiment, there are four third rotating grooves 311. At the bottom of the embedding groove 23, several third fixing seats 24 are fixedly connected. The number of third fixing seats 24 is the same as and corresponds one by one to the number of third rotating grooves 311. The third fixing seats 24 are rotationally embedded in the third rotating grooves 311. The rotation axis of the third fixing seats 24 is parallel to the length direction of the flap 3. The width of the third rotating groove 311 along the length direction of the flap 3 is greater than the width of the third fixing seat 24 along the length direction of the flap 3. A third rotating shaft 312 is fixedly connected to the wall of the third rotating groove 311. The axis of the third rotating shaft 312 is parallel to the length direction of the flap 3. One end of the third rotating shaft 312 along the axis direction of the third rotating shaft 312 is fixedly connected to the wall of the third rotating groove 311. There is a gap between the other end of the third rotating shaft 312 and the wall of the third rotating groove 311. At the other end of the third rotating shaft 312 away from the wall of the third rotating groove 311, there is a sixth chamfer 3121. The sixth chamfer 3121 is located at the end of the third rotating shaft away from the bottom of the third rotating groove 311. The sixth chamfer 3121 is used for the end of the third fixing seat 24 away from the bottom of the embedding groove 23 to abut against. The third rotating shaft 312 is hinged to the third fixing seat 24.

[0059] Refer to Figure 1 and Figure 6, one end of the flap 3 away from the top frame 2 is provided with a card slot 32, and the card slot 32 is located on the side surface of the flap 3 facing another flap 3. A connecting seat 13 is fixedly connected to the bottom of the accommodating groove 11, and the number of the connecting seats 13 is the same as and corresponds to the number of the flaps 3 one by one. A clamping block 131 is fixedly connected to the side of the connecting seat 13 away from the bottom of the accommodating groove 11, and the number of the clamping blocks 131 is the same as and corresponds to the number of the card slots 32 one by one. The clamping block 131 is embedded in the card slot 32, and a first chamfer 1311 and a second chamfer 1312 are provided on the side of the clamping block 131 away from the connecting seat 13. The first chamfer 1311 is located on the side of the clamping block 131 close to another flap 3, and the first chamfer 1311 is used to abut against one end of the flap 3 away from the top frame 2. The second chamfer 1312 is located on the other side of the clamping block 131, and the second chamfer 1312 is used to abut against the groove wall on the side of the card slot 32 away from another flap 3.

[0060] Refer to Figure 1 and Figure 2 , a third weight-reducing groove 33 is provided on the side of the flap 3 away from another flap 3, and a holding groove 34 is provided at the bottom of the third weight-reducing groove 33. The holding groove 34 penetrates through the flap 3 along the thickness direction of the flap 3. A plurality of third protrusions 35 are fixedly connected to the bottom of the third weight-reducing groove 33, and the plurality of third protrusions 35 are evenly distributed along the length direction of the flap 3. In this embodiment, there are three third protrusions 35. A third reinforcing rib 36 is provided between two third protrusions 35, and the length direction of the third reinforcing rib 36 is parallel to the width direction of the flap 3. The two ends of the third reinforcing rib 36 along the length direction of the third reinforcing rib 36 are respectively fixedly connected to the groove walls of the third weight-reducing groove 33. In this embodiment, there is one third reinforcing rib 36 between two third protrusions 35.

[0061] Refer to Figure 5 and Figure 8, a folding shopping cart further includes a cover plate 5 and a lifting handle 6. An inner ring groove 25 is provided on one side of the inner wall of the top frame 2 away from the bottom plate 1. There are two lifting handles 6, and the two lifting handles 6 are symmetrically distributed along the length direction of the top frame 2. The lifting handle 6 includes a connecting rod 61 and a rotating rod 62. There are two rotating rods 62. The length direction of the connecting rod 61 is parallel to the width direction of the top frame 2. The two ends of the connecting rod 61 along the length direction of the connecting rod 61 are respectively fixedly connected to one end of the two rotating rods 62 along the length direction of the rotating rod 62. The ends of the two rotating rods 62 away from the connecting rod 61 are rotatably embedded in the inner ring groove 25, and the rotation axis of the rotating rod 62 is parallel to the width direction of the top frame 2. When the lifting handle 6 is embedded in the inner ring groove 25, the connecting rod 61 is located at the end of the rotating rod 62 away from the other lifting handle 6, and the surface of the rotating rod 62 away from the other rotating rod 62 is in contact with the groove wall of the inner ring groove 25. The cover plate 5 is embedded in the inner ring groove 25. The surface of the cover plate 5 close to the bottom plate 1 is in contact with the bottom of the inner ring groove 25. On both sides of the cover plate 5 along the width direction of the top frame 2, there are respectively fixedly connected with embedding blocks 51. The embedding blocks 51 are located between the two lifting handles 6. The surface of the embedding block 51 away from the cover plate 5 is in contact with the groove wall of the inner ring groove 25. A groove 511 is provided on the side of the embedding block 51 away from the cover plate 5, and the groove 511 is used for embedding. The surfaces on both sides of the cover plate 5 along the width direction of the top frame 2 are respectively in contact with the surfaces of the two rotating rods 62 close to the other rotating rod 62. One end of the cover plate 5 close to the connecting rod 61 is provided with an avoidance groove 52, and the avoidance groove 52 is located on the side of the cover plate 5 away from the bottom of the inner ring groove 25.

[0062] A folding shopping cart further includes a locking member 7. A sliding groove 53 is provided on the side of the cover plate 5 away from the bottom of the inner ring groove 25. The locking member 7 is slidably embedded in the sliding groove 53, and the sliding direction of the locking member 7 is parallel to the width direction of the top frame 2. The number of the sliding grooves 53 and the locking members 7 is the same as the number of the embedding blocks 51 and they correspond one by one. A communication groove 54 is provided on the groove wall of the sliding groove 53 close to the embedding block 51, and a fixing groove 26 is provided on the groove wall of the inner ring groove 25. The number of the communication grooves 54 and the fixing grooves 26 is the same as the number of the sliding grooves 53 and they correspond one by one. The locking member 7 includes a fixing portion 71 and a pushing portion 72. The fixing portion 71 is slidably embedded in the sliding groove 53, and the sliding direction of the fixing portion 71 is parallel to the width direction of the top frame 2. One end of the fixing portion 71 passes through the communication groove 54 and is then embedded in the fixing groove 26. The pushing portion 72 is fixedly connected to the side of the fixing portion 71 away from the bottom of the sliding groove 53, and the pushing portion 72 is located on the side of the fixing portion 71 away from the fixing groove 26.

[0063] Refer to Figure 7, on both sides of the connecting groove 54 along the length direction of the top frame 2, there are respectively fixedly connected with abutting blocks 55. One end of the abutting block 55 away from the sliding groove 53 is provided with a third chamfer 551, and the third chamfer 551 is located on the side of the abutting block 425 away from the groove wall of the connecting groove 54. On both sides of the fixing part 71 along the length direction of the top frame 2, there are respectively fixedly connected with elastic parts 73. One end of the elastic part 73 close to the fixing groove 26 is fixedly connected to the fixing part 71, and the other end of the elastic part 73 away from the fixing groove 26 is provided with a fourth chamfer 731, and the fourth chamfer 731 abuts against the third chamfer 551.

[0064] Referring to Figure 1 and Figure 8 , a folding shopping cart further includes a pull rod 8. On the outer periphery of the top frame 2, on the side away from the bottom plate 1, there is an outer ring groove 27, and the pull rod 8 is rotatably embedded in the outer ring groove 27. The surface of the pull rod 8 close to the bottom plate 1 is in contact with the bottom of the outer ring groove 27. The pull rod 8 includes a connecting section 81 and a rotating section 82. There are two rotating sections 82. The length direction of the connecting section 81 is parallel to the width direction of the top frame 2. The two ends of the connecting section 81 along the length direction of the connecting section 81 are respectively fixedly connected to one end of the two rotating sections 82. The other end of the rotating section 82 is rotatably embedded in the outer ring groove 27, and the rotation axis of the rotating section 82 is parallel to the width direction of the top frame 2. When the pull rod 8 is embedded in the outer ring groove 27, the surface of the connecting section 81 close to the bottom plate 1 is in contact with the bottom of the outer ring groove 27, and the surface of the rotating section 82 close to the other rotating section 82 is in contact with the groove wall of the outer ring groove 27.

[0065] A folding shopping cart further includes universal wheels 9, and the universal wheels 9 are fixedly connected to the side of the bottom plate No. 1 away from the top frame 2. There are several universal wheels 9, and several are circumferentially spaced apart on the bottom plate 1. In this embodiment, there are four universal wheels 9, and the four universal wheels 9 are distributed at the four corners of the bottom plate 1.

[0066] Referring to Figure 8, one side of the top frame 2 along the length direction of the top frame 2 is fixedly connected with an upper limit seat 28, and the upper limit seat 28 is located at one end of the rotating section 82 away from the connecting section 81. There are two upper limit seats 28, and the two upper limit seats 28 are symmetrically distributed along the width direction of the top frame 2. On the side of the upper limit seat 28 facing the other upper limit seat 28, there is an upper limit groove 281, and the upper limit groove 281 runs through the upper limit seat 28 vertically. The upper limit groove 281 is used for the cover plate 5 to be embedded, and the groove wall of the upper limit groove 281 fits against the outer wall of the cover plate 5. On the outer wall of the bottom plate 1 near the upper limit seat 28 along the length direction of the bottom plate 1, a lower limit seat 14 is fixedly connected. There are several lower limit seats 14, and several lower limit seats 14 are spaced along the width direction of the bottom plate 1. In this embodiment, there are four lower limit seats 14. On the side of the lower limit seat 14 close to the top frame 2, there is a lower limit groove 141, and the lower limit groove 141 runs through the lower limit seat 14 along the width direction of the bottom plate 1. The groove wall of the lower limit groove 141 close to the bottom plate 1 is flush with the groove wall of the upper limit groove 281 close to the top frame 2. The lower limit groove 141 is used for one end of the cover plate 5 along the length direction of the cover plate 5 to be embedded, and the bottom of the lower limit groove 141 abuts against one end of the cover plate 5 along the length direction.

[0067] The implementation principle of a folding shopping cart in an embodiment of the present application is as follows: When unfolding the folding shopping cart, pull the top frame 2 away from the bottom plate 1, and the first side plate 41 and the second side plate 42 rotate, so that the abutting block 55 rotates and is embedded in the abutting groove 415, so that the abutting block 55 abuts against the connecting plate 416. Rotate the flap 3 so that the surface of the flap 3 away from the flap 3 abuts against the bottom of the receiving groove 11, the locking block 131 is embedded in the locking groove 32, and the second chamfer 1312 abuts against the groove wall of the locking groove 32. The surfaces on both sides of the flap 3 along the length direction of the flap 3 respectively abut against the surfaces of the two folding plates 4 facing the other folding plate 4, realizing the relative fixation of the top frame 2, the bottom plate 1, the folding plates 4 and the flap 3.

[0068] The user picks up the folding shopping cart through the holding groove 34; or rotates the lifting handle 6 to disengage from the inner ring groove 25 through the avoidance groove 52, and lifts the folding shopping cart by pulling the two lifting handles 6; or rotates the pull rod 8 to disengage from the outer ring groove 27, sets the universal wheels 9, and moves the folding shopping cart by pulling the pull rod 8.

[0069] When it is necessary to store the folding shopping cart, push the flap 3 from the outside of the folding shopping cart, so that the locking block 131 disengages from the locking groove 32, and the first side plate 41 and the second side plate 42 are folded towards the inside of the folding shopping cart, so that the top frame 2 moves towards the direction close to the bottom plate 1, realizing the folding of the folding shopping cart.

[0070] The above are all the preferred embodiments of the present application. Without restricting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A folding shopping cart, characterized in that: It includes a bottom plate, a top frame, folding plates and flap plates; the bottom plate is provided with a receiving groove, and there are a pair of folding plates and flap plates respectively; the folding plates are connected between the bottom plate and the top frame; the folding plates include a first side plate and a second side plate; the first side plate and the second side plate are hinged; the other end of the first side plate is hinged to the top frame; the other end of the second side plate is hinged to the bottom plate; one end of the flap plate is rotatably connected to the top frame; the side surface of the flap plate away from the other flap plate abuts against the wall of the receiving groove; both ends of the flap plate along the axis of rotation of the flap plate respectively abut against the side surface of the folding plate facing the other folding plate.

2. The folding shopping cart according to claim 1, wherein: A clamping groove is provided at the end of the flap plate away from the top frame; the clamping groove is located on the side of the flap plate close to the other flap plate; a clamping block is connected to the bottom of the receiving groove; the end of the clamping block along the direction perpendicular to the axis of rotation of the flap plate and close to the other flap plate is provided with a first chamfer; the first chamfer is used for the lower end on the side of the flap plate away from the other flap plate to abut; a second chamfer is provided on the side of the clamping block away from the first chamfer; the second chamfer is used for the wall of the clamping groove to abut.

3. The folding shopping cart according to claim 1, characterized in that: A first rotating groove is provided on the side of the first side plate close to the top frame; a first fixing seat is connected to the lower end of the top frame; the first fixing seat is rotatably embedded in the first rotating groove; the axis of rotation of the first fixing seat coincides with the hinge axis of the first side plate and the top frame; the width of the first fixing seat along the axis of rotation of the first side plate is smaller than the width of the first rotating groove along the axis of rotation of the first side plate; a limiting block is connected to the wall of the first rotating groove; the other end of the limiting block is inclined towards the bottom of the first rotating groove; the limiting block is used for abutting against the side plate of the first fixing seat; a second rotating groove is provided on the side of the second side plate close to the bottom plate; a second fixing seat is connected to the bottom of the receiving groove; the second fixing seat is rotatably embedded in the second rotating groove; the axis of rotation of the second fixing seat coincides with the hinge axis of the second side plate and the bottom plate; the width of the second fixing seat along the axis of rotation of the second side plate is smaller than the width of the second rotating groove along the axis of rotation of the second side plate.

4. The folding shopping cart according to claim 1, wherein: The hinge axis of the first side plate and the second side plate is located on the side of the folding plate away from the other folding plate; a butting groove is provided at one end of the first side plate facing the other folding plate and close to the second side plate; a butting block is connected to one end of the second side plate close to the first side plate; the butting block is embedded in the butting groove.

5. The folding shopping cart according to claim 1, wherein: It further includes a cover plate; an inner ring groove is provided on the inner wall of the top frame away from the bottom plate; the inner ring groove is used for the cover plate to be embedded.

6. The folding shopping cart according to claim 5, wherein: It further includes a locking member; a fixing groove is provided on the wall of the inner ring groove; the locking member is slidably connected to the cover plate; the locking member is embedded in the fixing groove to realize the relative fixation of the cover plate and the top frame.

7. The folding shopping cart according to claim 5, wherein: It further includes lifting handles; there are two lifting handles; the two lifting handles are rotatably embedded in the inner ring groove; the two lifting handles are symmetrically distributed along the length direction of the cover plate.

8. The folding shopping cart according to claim 7, characterized in that: A relief groove is provided on the side wall of the cover plate; the relief groove is located on the side of the cover plate away from the bottom of the inner ring groove; the number of the relief grooves is the same as that of the lifting handles and they correspond one by one; the inner walls of the relief grooves are aligned with the lifting handles.

9. The folding shopping cart according to claim 1, wherein: It further includes universal wheels and a pull rod; the pull rod is rotatably connected to the top frame; the universal wheels are connected to the bottom plate; there are several of the universal wheels; and the several universal wheels are distributed at intervals along the circumference of the bottom plate.

10. The folding shopping cart according to claim 1, characterized in that: A holding groove is provided on one side of the flap away from the other flap; the holding groove penetrates through the flap.

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