Folding shopping cart

Abstract

The invention relates to the field of folding shopping carts, in particular to a folding shopping cart which comprises a face plate, a back plate, a folding assembly, a locking block and a supporting plate, the face plate is parallel to the back plate, the folding assembly comprises a folding plate, a hinge plate and the locking block, one end of the folding plate is hinged to the back plate, and the other end of the folding plate is hinged to one end of the hinge plate; the other end of the hinge plate is hinged to the face plate, the hinge axis of the folding plate and the hinge plate is parallel to the height direction of the face plate, the face plate, the back plate and the two folding assemblies define a containing cavity, the locking block is provided with a locking groove, and the upper end of the folding plate and the upper end of the hinge plate are embedded into the locking groove in a sliding mode. One end of the supporting plate is hinged to the end, facing the back plate, of the panel, the end, facing the panel, of the back plate is fixedly connected with a supporting block, and the other end of the supporting plate abuts against the upper end of the supporting block. The locking block slides to enable the upper ends of the folding plate and the hinge plate to be jointly embedded into the locking groove, so that the folding plate and the hinge plate are not prone to being folded due to external force, and the stability of the folding shopping cart is improved.

Description

Technical Field

[0001] The present application relates to the field of foldable shopping carts, and in particular to a foldable shopping cart. Background Art

[0002] Traditional shopping methods, such as going to the supermarket or the vegetable market, usually require carrying a lot of items home. As people's living standards improve, the demand for daily shopping in families is increasing. This increase in demand has promoted the emergence of vehicles designed specifically for family shopping - folding shopping carts. Folding shopping carts are the name of a vehicle for a specific purpose, mainly used for daily use in the family, especially for purchasing daily necessities such as food.

[0003] However, the existing foldable shopping cart has an unstable structure and is easily deformed by external forces during use, causing items in the foldable shopping cart to scatter, causing great inconvenience to users. Summary of the invention

[0004] In order to improve the stability of a foldable shopping cart, the present application provides a foldable shopping cart.

[0005] The foldable shopping cart provided in this application adopts the following technical solution: A foldable shopping cart comprises a panel, a back panel, a folding assembly, a locking block and a support plate, the panel is parallel to the back panel, the folding assembly comprises a folding plate, a hinged plate and a locking block, one end of the folding plate is hinged to the back panel, the other end of the folding plate is hinged to one end of the hinged plate, the other end of the hinged plate is hinged to the panel, the hinge axes of the folding plate and the hinged plate are parallel to the height direction of the panel, the folding assembly is provided with two, the panel, the back panel and the two folding assemblies together form a accommodating cavity, the locking block is provided with a locking groove, the locking groove is used for the upper ends of the folding plate and the hinged plate to slide and embed, one end of the support plate is hinged to one end of the panel facing the back panel, the end of the back panel facing the panel is fixedly connected to the support block, and the other end of the support plate abuts against the upper end of the support block.

[0006] By adopting the above technical solution, when the foldable shopping cart needs to be used, the folding plate and the hinged plate are rotated to make the front plate and the back plate move away from each other, the support plate is rotated to abut the support block, and the accommodating cavity is opened at the same time, and the locking block slides so that the upper ends of the foldable plate and the hinged plate are embedded in the locking groove together. The locking block makes it difficult for the foldable plate and the hinged plate to fold due to external force, thereby improving the stability of the foldable shopping cart.

[0007] Preferably, sliding grooves are provided on both sides of the folding plate, and the sliding grooves are provided at one end of the folding plate close to the hinge plate. Sliding grooves are provided on both sides of the hinge plate, and the sliding grooves are provided at one end of the hinge plate close to the folding plate. The groove walls of the locking grooves are fixedly connected with sliding blocks and sliding blocks, and the sliding grooves are used for sliding blocks to slide and embed. The sliding grooves are used for sliding blocks to slide and embed.

[0008] By adopting the above technical solution, the sliding block is embedded in the sliding groove, and the sliding block is embedded in the sliding groove. The sliding groove and the sliding groove guide the sliding of the locking block, and at the same time make the locking block not easy to separate from the folding plate, thereby improving the stability of the foldable shopping cart.

[0009] Preferably, the upper end of the folding plate is fixedly connected with a positioning block, the positioning block is arranged on the side of the sliding groove away from the hinge plate, and the end of the positioning block facing the sliding groove is used for the locking block to abut, the upper end of the hinge plate is fixedly connected with a limiting block, the limiting block is arranged on the side of the sliding groove away from the folding plate, and the end of the limiting block facing the sliding groove is used for the locking block to abut, the distance from the positioning block to the hinge plate is greater than or equal to the length of the locking block, and the distance from the limiting block to the folding plate is less than the length of the locking block.

[0010] By adopting the above technical solution, the positioning block and the limiting block limit the sliding of the locking block, which is convenient for adjusting the position of the locking block. When the locking block abuts the positioning block, the folding plate and the hinged plate can rotate freely. When the locking block abuts the limiting block, the folding plate and the hinged plate cannot be folded, which is convenient for users to judge the status of the folding plate and the hinged plate and facilitates user use.

[0011] Preferably, a cover plate is further included, and one end of the locking block facing the accommodating cavity is fixedly connected with a support bar, the upper end of the support bar is used for abutment by the cover plate, and the cover plate is used to cover the accommodating cavity.

[0012] By adopting the above technical solution, the support bar supports the cover plate, so that the cover plate covers the accommodating cavity, reducing the entry of foreign matter into the foldable shopping cart, and facilitating users to use it outdoors.

[0013] Preferably, it also includes a first spring and a locking block, the locking block is provided with a mounting groove at one end facing the accommodating cavity, the mounting groove is provided above the support bar, one end of the first spring is fixedly connected to the bottom of the mounting groove, the other end of the first spring is fixedly connected to the locking block, the cover plate is provided with a locking groove at one end facing the folding plate, the locking groove is used for the locking block to be embedded, the locking block is provided with a first guide surface at one end facing away from the support plate, the distance from the first guide surface to the first spring decreases with increasing height, the locking block is provided between the sliding block and the sliding block, the locking block is provided with a second guide surface at one end facing away from the back plate, the distance from the second guide surface to the first spring decreases as it moves away from the sliding block.

[0014] By adopting the above technical solution, if the cover plate is installed when the locking block locks the folding plate and the hinged plate, the first spring contracts and the locking block presses against the outer wall of the cover plate, so that the cover plate is not easily separated from the support bar during the movement of the foldable shopping cart, thereby improving the stability of the cover plate; if the cover plate is installed when the locking block does not lock the folding plate and the hinged plate, the locking block is embedded in the locking groove and the cover plate cannot fall out, thereby reducing the probability of the folding assembly folding and causing the goods to scatter when the cover plate accidentally falls out. After the locking block is moved to lock the folding plate and the hinged plate, the cover plate can be opened normally, thereby improving the stability of the foldable shopping cart.

[0015] Preferably, an embedding groove is provided at one end of the back plate facing the panel, and a fillet is fixedly connected to one end of the cover plate, and the embedding groove is used for embedding the fillet.

[0016] By adopting the above technical solution, when installing the cover plate, the embedding strip is embedded in the embedding groove, and the embedding groove limits the up and down movement of the cover plate, so that the cover plate is not easy to automatically fall out of the accommodating cavity, thereby improving the stability of the cover plate.

[0017] Preferably, it also includes a slider and a roller, and the two groove walls opposite to each other of the embedding groove are provided with a placement groove, and the two placement grooves are respectively close to two folding plates, and the length direction of the placement groove is parallel to the groove depth direction of the embedding groove, and the placement groove extends to the end close to the panel to penetrate the back plate, and the slider is slidably embedded in the placement groove, and both ends of the roller are rotatably connected to the slider around their own axes, and the rotation axis of the roller is horizontal and parallel to the cover plate, and the outer wall of the roller is used to abut the outer wall of the cover plate and the lower surface of the embedding strip.

[0018] By adopting the above technical solution, when the cover is opened, the cover drives the roller to rotate, and the roller supports the cover so that the cover can stand up, which is convenient for users to take and put items. Preferably, it further comprises a second spring, one end of the second spring is fixedly connected to one end of the placement slot facing the panel, and the other end of the second spring is fixedly connected to the slider.

[0019] By adopting the above technical solution, the second spring pushes the roller to move in a direction away from the bottom of the embedding groove. When the cover is opened, the roller is pushed out of the embedding groove, which is convenient for supporting the cover and convenient for users to use.

[0020] Preferably, it also includes a limiting plate, an anti-slip block and an abutment block, the two opposite groove walls of the embedding groove are each provided with a limiting groove, the limiting groove is arranged below the placement groove, the groove wall of the limiting groove facing the placement groove is provided with an anti-slip groove, the limiting plate is slidably connected to the groove wall of the limiting groove, one end of the limiting plate is fixedly connected to the anti-slip block, the other end of the limiting plate is fixedly connected to the abutment block, the anti-slip block is slidably connected to the groove wall of the anti-slip groove, and the end of the abutment block facing the anti-slip block is used for abutment of the sliding block.

[0021] By adopting the above technical solution, the sliding of the slider is limited to prevent the slider from slipping out of the placement groove, so that the foldable shopping cart can be used stably.

[0022] Preferably, it also includes a first magnetic block and a second magnetic block, wherein the first magnetic block is fixedly connected to one end of the locking block toward the back plate, and the second magnetic block is fixedly connected to one end of the abutment block toward the panel, and the first magnetic block and the second magnetic block repel each other.

[0023] By adopting the above technical solution, when the foldable shopping cart needs to be stored, the locking block is completely slid onto the folding plate to achieve unlocking, the first magnetic block moves with the locking block, the second magnetic block is forced to push the slider to move, and the second spring contracts to avoid interference with the rotation of the folding plate, and when the cover plate stands on the roller, the locking block is blocked when sliding and cannot be unlocked, which is convenient for maintaining the stability of the foldable shopping cart.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the foldable shopping cart needs to be used, the foldable plate and the hinged plate are rotated so that the front plate and the back plate are separated, the support plate is rotated to abut against the support block, and the accommodating cavity is opened at the same time. The locking block slides so that the upper ends of the foldable plate and the hinged plate are embedded in the locking groove together. The locking block makes it difficult for the foldable plate and the hinged plate to fold due to external force, thereby improving the stability of the foldable shopping cart; 2. If the cover is installed when the locking block locks the folding plate and the hinged plate, the first spring contracts and the locking block presses against the outer wall of the cover, so that the cover is not easy to separate from the support bar during the movement of the foldable shopping cart, thereby improving the stability of the cover; if the cover is installed when the locking block does not lock the folding plate and the hinged plate, the locking block is embedded in the locking groove, and the cover cannot fall out, thereby reducing the probability of the folding assembly folding and causing the goods to scatter when the cover accidentally falls out. After the locking block is moved to lock the folding plate and the hinged plate, the cover can be opened normally, thereby improving the stability of the foldable shopping cart; 3. When the foldable shopping cart needs to be stored, the locking block is completely slid onto the folding plate to unlock it. The first magnetic block moves with the locking block, the second magnetic block is forced to push the slider to move, and the second spring contracts to avoid interference with the rotation of the folding plate. When the cover plate stands on the roller, the locking block is blocked when sliding and cannot be unlocked, so as to maintain the stability of the foldable shopping cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a schematic diagram of the overall structure of a foldable shopping cart.

[0026] Figure 2 The present invention is a schematic diagram of the internal structure of a foldable shopping cart after being cut open.

[0027] Figure 3 It is a schematic diagram of the overall structure of the locking block.

[0028] Figure 4 It is a schematic diagram of the overall structure of the subject.

[0029] Figure 5 It is a schematic diagram of the overall structure of the back panel, folding assembly, telescopic pull rod and handle.

[0030] Figure 6 is an exploded view of the locking block and locking assembly.

[0031] Figure 7 It is a schematic diagram of the overall structure of the cover.

[0032] Figure 8 It is a schematic diagram of the overall structure of the auxiliary components.

[0033] Fig. 9 yes Figure 5 Enlarged view of point A in the middle.

[0034] Description of reference numerals: 1, main body; 11, panel; 111, storage slot; 112, placement plate; 113, notch; 12, back plate; 121, support block; 122, avoidance slot; 1221, embedding slot; 1222, placement slot; 1223, limiting slot; 1224, anti-slip slot; 123, telescopic opening; 13, folding assembly; 131, folding plate; 1311, sliding slot; 1312, positioning block; 132, hinged plate; 1321, sliding slot; 1322, limiting block; 133, locking block; 1331, locking slot; 1332, sliding block; 1333 , sliding block; 1334, supporting bar; 1335, mounting groove; 14, supporting plate; 15, fixing plate; 16, universal wheel; 17, telescopic pull rod; 18, handle; 19, accommodating chamber; 2, cover plate; 21, locking groove; 22, embedding strip; 3, locking assembly; 31, first spring; 32, locking block; 321, first guide surface; 322, second guide surface; 4, auxiliary assembly; 41, sliding block; 42, rotating roller; 421, rotating column; 43, second spring; 44, limiting plate; 45, anti-slip block; 46, abutment block; 47, first magnetic block; 48, second magnetic block. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-9 This application is described in further detail.

[0036] The present application embodiment discloses a foldable shopping cart. Figure 1 The foldable shopping cart includes a main body 1 and a cover plate 2.

[0037] Reference Figure 2The main body 1 includes a panel 11, a back panel 12, a folding assembly 13, a support plate 14, a fixing plate 15, a universal wheel 16, a telescopic pull rod 17 and a handle 18. The panel 11 is parallel to the back panel 12. The folding assembly 13 includes a folding plate 131, a hinged plate 132 and a locking block 133. One end of the folding plate 131 is hinged to the back panel 12, the other end of the folding plate 131 is hinged to one end of the hinged plate 132, and the other end of the hinged plate 132 is hinged to the panel 11. The hinge axis of the folding plate 131 and the hinged plate 132 is parallel to the height direction of the panel 11. Two folding assemblies 13 are provided, and the two folding assemblies 13 are respectively close to the two ends of the panel 11. The panel 11, the back panel 12 and the two folding assemblies 13 enclose a receiving cavity 19.

[0038] Reference Figure 3 and Figure 4 The locking block 133 is provided with a locking groove 1331, and the locking groove 1331 is used for the upper ends of the folding plate 131 and the hinged plate 132 to slide and embed. Sliding grooves 1311 are provided on both sides of the folding plate 131, and the sliding groove 1311 is provided at one end of the folding plate 131 close to the hinged plate 132. Sliding grooves 1321 are provided on both sides of the hinged plate 132, and the sliding groove 1321 is provided at one end of the hinged plate 132 close to the folding plate 131. The groove wall of the locking groove 1331 is fixedly connected with a sliding block 1332 and a sliding block 1333. The sliding block 1332 and the sliding block 1333 are respectively close to the two ends of the locking groove 1331. The sliding groove 1311 is used for the sliding block 1332 to slide and embed, and the sliding groove 1321 is used for the sliding block 1333 to slide and embed.

[0039] Reference Figure 4 The upper end of the folding plate 131 is fixedly connected with a positioning block 1312, which is arranged on the side of the sliding groove 1311 away from the hinged plate 132, and the end of the positioning block 1312 facing the sliding groove 1311 is used for the locking block 133 to abut, and the upper end of the hinged plate 132 is fixedly connected with a limiting block 1322, which is arranged on the side of the sliding groove 1321 away from the folding plate 131, and the end of the limiting block 1322 facing the sliding groove 1321 is used for the locking block 133 to abut, the distance from the positioning block 1312 to the hinged plate 132 is equal to the length of the locking block 133, and the distance from the limiting block 1322 to the folding plate 131 is less than the length of the locking block 133. When the locking block 133 abuts against the positioning block 1312 , the folding plate 131 and the hinge plate 132 can be folded; when the locking block 133 abuts against the limiting block 1322 , the folding plate 131 and the hinge plate 132 cannot be folded.

[0040] Reference Figure 2The end of the panel 11 facing the back panel 12 is provided with a receiving groove 111, which is connected to the accommodating cavity 19. One end of the support plate 14 is hinged to the upward groove wall of the receiving groove 111. The hinge axis of the support plate 14 is horizontal and parallel to the panel 11. The end of the back panel 12 facing the panel 11 is fixedly connected with a support block 121. The other end of the support plate 14 abuts against the upper end of the support block 121. The end surface of the support plate 14 abuts against the folding plate 131 and the end of the hinge plate 132 facing the accommodating cavity 19. The receiving groove 111 is used to accommodate the support plate 14 and the hinge plate 132. The end of the back panel 12 facing the panel 11 is provided with an avoidance groove 122, which is connected to the accommodating cavity 19, and is used to accommodate the folding plate 131. When the folding assembly 13 is folded, the folding plate 131 is embedded in the avoidance groove 122, and the support plate 14 and the hinge plate 132 are embedded in the storage groove 111, thereby reducing the occupied space of the foldable shopping cart.

[0041] The fixing plate 15 is fixedly connected to the lower ends of the panel 11 and the back plate 12. There are four fixing plates 15, which are respectively connected to the two ends of the panel 11 and the two ends of the back plate 12. There are four universal wheels 16, which are arranged one by one corresponding to the fixing plates 15, and are fixedly connected to the lower end of the fixing plates 15.

[0042] Reference Figure 1 A telescopic opening 123 is provided at the upper end of the back panel 12, and the telescopic opening 123 is provided on the side of the avoidance groove 122 away from the panel 11. The telescopic rod 17 is slidably connected to the inner wall of the telescopic opening 123, and the sliding direction of the telescopic rod 17 is parallel to the height direction of the back panel 12. The handle 18 is fixedly connected to the upper end of the telescopic rod 17, and the handle 18 is provided above the back panel 12.

[0043] Reference Figure 5 The foldable shopping cart also includes a locking component 3 and an auxiliary component 4.

[0044] Reference Figure 5 and Figure 6 The locking assembly 3 includes a first spring 31 and a locking block 32. The end of the locking block 133 facing the accommodating cavity 19 is fixedly connected to a support bar 1334. The upper end of the support bar 1334 is used for the cover plate 2 to abut against the accommodating cavity 19. The cover plate 2 is used to cover the accommodating cavity 19. The end of the locking block 133 facing the accommodating cavity 19 is provided with a mounting groove 1335. The mounting groove 1335 is arranged above the support bar 1334. One end of the first spring 31 is fixedly connected to the bottom of the mounting groove 1335. The other end of the first spring 31 is fixedly connected to the locking block 32.

[0045] Reference Figure 5 and Figure 7 A locking groove 21 is provided at one end of the cover plate 2 facing the folding plate 131 , and the locking groove 21 is used for the locking block 32 to be embedded.

[0046] Reference Figure 5 and Figure 6 A first guide surface 321 is provided on the upper end surface of the locking block 32, and the distance from the first guide surface 321 to the first spring 31 decreases as the height increases. The locking block 32 is arranged between the sliding block 1332 and the sliding block 1333. A second guide surface 322 is provided at one end of the locking block 32 away from the back plate 12, and the distance from the second guide surface 322 to the first spring 31 decreases as it moves away from the sliding block 1332.

[0047] Reference Figure 5 and Figure 8 The auxiliary component 4 includes a slider 41, a roller 42, a second spring 43, a limit plate 44, an anti-slip block 45, an abutment block 46, a first magnetic block 47 and a second magnetic block 48.

[0048] Reference Figure 2 and Fig. 9 A groove 1221 is provided at the bottom of the avoidance groove 122 , and the length direction of the groove 1221 is parallel to the hinge axis of the support plate 14 .

[0049] Reference Figure 2 and Figure 7 One end of the cover plate 2 is fixedly connected with a fillet 22, and the embedding groove 1221 is used for the fillet 22 to be embedded. The end of the panel 11 facing the back plate 12 is fixedly connected with a placement plate 112, and the placement plate 112 is arranged above the storage groove 111. The end of the cover plate 2 away from the back plate 12 abuts against the upper end of the placement plate 112. The upper end of the panel 11 is provided with a notch 113, and the notch 113 is arranged above the placement plate 112. The notch 113 is used for the operator to take and place the cover plate 2.

[0050] Reference Figure 2 and Fig. 9 The two opposite groove walls of the embedded groove 1221 are both provided with a placement groove 1222, and the two placement grooves 1222 are respectively close to the two folding plates 131. The length direction of the placement groove 1222 is parallel to the groove depth direction of the embedded groove 1221. The placement groove 1222 extends to the end close to the panel 11 to penetrate the back plate 12, and the slider 41 is slidably embedded in the placement groove 1222.

[0051] Reference Figure 2 and Figure 8 The two ends of the roller 42 are coaxially fixedly connected with a rotating column 421. The diameter of the roller 42 is larger than the diameter of the rotating column 421. The rotating column 421 rotates around its own axis and is connected to the slider 41. The rotation axis of the rotating column 421 is horizontal and parallel to the hinge axis of the support plate 14.

[0052] Reference Figure 7 and Fig. 9The outer wall of the roller 42 is used to abut the outer wall of the cover plate 2 and the lower surface of the molding 22, one end of the second spring 43 is fixedly connected to the end of the placement groove 1222 away from the bottom of the embedding groove 1221, and the other end of the second spring 43 is fixedly connected to the slider 41.

[0053] Reference Figure 5 and Fig. 9 The two opposite groove walls of the embedded groove 1221 are both provided with a limiting groove 1223, the limiting groove 1223 is provided below the placement groove 1222, the groove wall of the limiting groove 1223 facing the placement groove 1222 is provided with an anti-slip groove 1224, the limiting piece 44 is slidably connected to the groove wall of the limiting groove 1223, one end of the limiting piece 44 is fixedly connected to the anti-slip block 45, the other end of the limiting piece 44 is fixedly connected to the abutment block 46, the anti-slip block 45 is slidably connected to the groove wall of the anti-slip groove 1224, and the end of the abutment block 46 facing the anti-slip block 45 is used for the slider 41 to abut. The first magnetic block 47 is fixedly connected to the end of the locking block 133 facing the back plate 12, and the second magnetic block 48 is fixedly connected to the end of the abutment block 46 away from the slider 41, and the first magnetic block 47 and the second magnetic block 48 repel each other.

[0054] The implementation principle of a foldable shopping cart in the embodiment of the present application is as follows: when the foldable shopping cart is used, the control panel 11 and the back panel 12 are moved away from each other, the folding plate 131 and the hinged plate 132 are rotated to be perpendicular to the panel 11, the support plate 14 is rotated to abut against the support block 121, and the sliding locking block 133 makes the folding plate 131 and the hinged plate 132 relatively fixed, the embedding strip 22 is embedded in the embedding groove 1221, and the cover plate 2 is rotated to abut against the support strip 1334 and the upper end surface of the placement plate 112 to complete the fixation. If the locking block 133 slides during use to unlock the folding plate 131 and the hinged plate 132, the locking assembly 3 makes the cover plate 2 unable to be opened, and the sliding locking block When 133 locks the folding plate 131 and the hinged plate 132, the cover 2 can be rotated and opened, and the second spring 43 makes the slider 41 move toward the direction of the panel 11, and the abutment block 46 limits the sliding of the slider 41. The roller 42 and the telescopic pull rod 17 both support the cover 2, so that the cover 2 can be stably opened, which is convenient for the staff to take things. During the process of taking things, since the first magnetic block 47 and the second magnetic block 48 repel each other, the locking block 133 is not easy to slide and unlock. After use, the cover 2 is removed, the sliding locking block 133 is unlocked, and the abutment block 46 slides to make the slider 41 slide into the limiting groove 1223 to avoid interference with the rotation of the folding plate 131.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A foldable shopping cart, characterized in that: The invention comprises a front panel (11), a back panel (12), a folding assembly (13), a locking block (133) and a supporting plate (14), wherein the front panel (11) is parallel to the back panel (12), the folding assembly (13) comprises a folding plate (131), a hinge plate (132) and a locking block (133), one end of the folding plate (131) is hinged to the back panel (12), the other end of the folding plate (131) is hinged to one end of the hinge plate (132), the other end of the hinge plate (132) is hinged to the front panel (11), and the hinge axis of the folding plate (131) and the hinge plate (132) is parallel to the height of the front panel (11). In a degree direction, two folding assemblies (13) are provided, the panel (11), the back panel (12) and the two folding assemblies (13) together form a receiving cavity (19), the locking block (133) is provided with a locking groove (1331), the locking groove (1331) is used for the upper ends of the folding plate (131) and the hinge plate (132) to slide and embed, one end of the support plate (14) is hinged to one end of the panel (11) facing the back panel (12), one end of the back panel (12) facing the panel (11) is fixedly connected to the support block (121), and the other end of the support plate (14) abuts against the upper end of the support block (121).

2. A foldable shopping cart according to claim 1, characterized in that: Both sides of the folding plate (131) are provided with sliding grooves (1311), and the sliding grooves (1311) are arranged at one end of the folding plate (131) close to the hinge plate (132). Both sides of the hinge plate (132) are provided with sliding grooves (1321), and the sliding grooves (1321) are arranged at one end of the hinge plate (132) close to the folding plate (131). The groove wall of the locking groove (1331) is fixedly connected with a sliding block (1332) and a sliding block (1333). The sliding groove (1311) is used for the sliding block (1332) to be slidably embedded, and the sliding groove (1321) is used for the sliding block (1333) to be slidably embedded.

3. A foldable shopping cart according to claim 2, characterized in that: The upper end of the folding plate (131) is fixedly connected with a positioning block (1312), the positioning block (1312) is arranged on a side of the sliding groove (1311) away from the hinged plate (132), and one end of the positioning block (1312) facing the sliding groove (1311) is used for abutment with the locking block (133), the upper end of the hinged plate (132) is fixedly connected with a limiting block (1322), the limiting block (1322) is arranged on a side of the sliding groove (1321) away from the folding plate (131), and one end of the limiting block (1322) facing the sliding groove (1321) is used for abutment with the locking block (133), the distance between the positioning block (1312) and the hinged plate (132) is greater than or equal to the length of the locking block (133), and the distance between the limiting block (1322) and the folding plate (131) is less than the length of the locking block (133).

4. A foldable shopping cart according to claim 3, characterized in that: It also comprises a cover plate (2), one end of the locking block (133) facing the accommodating cavity (19) being fixedly connected to a support bar (1334), the upper end of the support bar (1334) being used for abutment by the cover plate (2), and the cover plate (2) being used for covering the accommodating cavity (19).

5. A foldable shopping cart according to claim 4, characterized in that: The invention also comprises a first spring (31) and a locking block (32); one end of the locking block (133) facing the accommodating cavity (19) is provided with a mounting groove (1335); the mounting groove (1335) is arranged above the supporting bar (1334); one end of the first spring (31) is fixedly connected to the bottom of the mounting groove (1335); the other end of the first spring (31) is fixedly connected to the locking block (32); one end of the cover plate (2) facing the folding plate (131) is provided with a locking groove (21); the locking groove (21) is used for the locking block to be inserted into the locking groove. (32) is embedded in the back plate (12), a first guide surface (321) is provided at one end of the locking block (32) away from the support plate (14), and the distance from the first guide surface (321) to the first spring (31) decreases as the height increases, the locking block (32) is arranged between the sliding block (1332) and the sliding block (1333), and a second guide surface (322) is provided at one end of the locking block (32) away from the back plate (12), and the distance from the second guide surface (322) to the first spring (31) decreases as the distance from the sliding block (1332) increases.

6. A foldable shopping cart according to claim 4, characterized in that: An embedding groove (1221) is provided at one end of the back plate (12) facing the panel (11), a fillet strip (22) is fixedly connected to one end of the cover plate (2), and the embedding groove (1221) is used for embedding the fillet strip (22).

7. A foldable shopping cart according to claim 6, characterized in that: It also comprises a slider (41) and a roller (42); two groove walls opposite to the embedding groove (1221) are each provided with a placement groove (1222); the two placement grooves (1222) are respectively close to two folding plates (131); the length direction of the placement groove (1222) is parallel to the groove depth direction of the embedding groove (1221); the placement groove (1222) extends toward the end close to the panel (11) to penetrate the back plate (12); the slider (41) is slidably embedded in the placement groove (1222); both ends of the roller (42) are rotatably connected to the slider (41) around their own axis; the rotation axis of the roller (42) is horizontal and parallel to the cover plate (2); the outer wall of the roller (42) is used to abut against the outer wall of the cover plate (2) and the lower surface of the embedding strip (22).

8. A foldable shopping cart according to claim 7, characterized in that: It also includes a second spring (43), one end of the second spring (43) being fixedly connected to one end of the placement slot (1222) facing the panel (11), and the other end of the second spring (43) being fixedly connected to the slider (41).

9. A foldable shopping cart according to claim 7, characterized in that: The invention also comprises a limiting piece (44), an anti-dropping block (45) and an abutting block (46); two groove walls opposite to the embedding groove (1221) are each provided with a limiting groove (1223); the limiting groove (1223) is arranged below the placement groove (1222); the groove wall of the limiting groove (1223) facing the placement groove (1222) is provided with an anti-dropping groove (1224); the limiting piece (44) is slidably connected to the groove wall of the limiting groove (1223); one end of the limiting piece (44) is fixedly connected to the anti-dropping block (45); the other end of the limiting piece (44) is fixedly connected to the abutting block (46); the anti-dropping block (45) is slidably connected to the groove wall of the anti-dropping groove (1224); and one end of the abutting block (46) facing the anti-dropping block (45) is used for abutment by the slider (41).

10. A foldable shopping cart according to claim 9, characterized in that: It also includes a first magnetic block (47) and a second magnetic block (48), wherein the first magnetic block (47) is fixedly connected to one end of the locking block (133) facing the back plate (12), and the second magnetic block (48) is fixedly connected to one end of the abutment block (46) facing the panel (11), and the first magnetic block (47) and the second magnetic block (48) repel each other.

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