High-balance anti-rollover steel shopping cart

Abstract

The utility model discloses a high-balance anti-rollover steel shopping cart which comprises a frame body, two rear supporting legs in mirror symmetry are fixedly connected to the two sides of the frame body, two front supporting legs in mirror symmetry are movably connected to the front end of the frame body, a pushing handle is fixed to the rear side of the frame body, a supporting piece is fixed to each of the two sides of the frame body, and the supporting pieces are fixedly connected with the rear supporting legs. The rear end of the inner side of the frame body penetrates through the through groove, the middle of the inner wall of the through groove is fixedly connected with a blocking strip, a seat plate is arranged at the position of the through groove, and the seat plate is fixedly connected with the frame body. The two front supporting legs are movably connected to the front side of the frame body, the supporting pieces composed of the supporting blocks, the supporting rods, the second sliding grooves, the second sliding blocks and the second springs are movably connected to the top faces of the two front supporting legs respectively, and the supporting pieces are connected with the supporting rods in a limiting mode through the positioning pins, so that when the frame body turns over backwards, the supporting pieces are not prone to falling off when the frame body turns over backwards. And the supporting rods play a role in supporting the frame body, so that the frame body is prevented from turning over.

Description

Technical Field

[0001] The utility model relates to the technical field of shopping carts, in particular to a high-balance anti-rollover steel shopping cart. Background Art

[0002] A shopping cart is a trolley used by customers to temporarily store selected goods in large self-service shopping malls such as supermarkets. It usually has several layers and can store different items, and some can even carry children. As we all know, shopping in supermarkets is a part of modern people's lives. In existing supermarkets in my country, people often carry household shopping carts to hold the items they buy when they go shopping in supermarkets. Because the area in the supermarket is often large, people need to walk a long way to buy the items they need. At this time, using a shopping cart can bring great convenience to people's purchase of items, especially when customers shopping with young children choose to place their children who can sit independently on a shopping cart with a seat board to facilitate shopping.

[0003] Existing shopping carts with seat boards can only free the hands of parents, but cannot ensure the safety of children when riding. When parents place children on the shopping carts with seat boards, the weight of the items placed in the shopping carts is unbalanced with the weight of the children, which may easily cause the shopping carts to overturn and cause danger. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high-balance anti-rollover steel shopping cart.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-balance anti-rollover steel shopping cart, including a frame, the rear end of the frame is fixedly connected to two mirror-symmetrical rear legs, the front end of the frame is movably connected to two mirror-symmetrical front legs, a push handle is fixed on the rear side of the frame, a support member is fixed on each side of the frame, the support member is fixedly connected to the rear legs and movably connected to the front legs, the front legs and the rear legs are both movably connected to rollers, the inner rear end of the frame passes through a through slot, the middle part of the inner wall of the through slot is fixedly connected to a baffle, a seat plate is provided at the through slot, and the seat plate is fixedly connected to the frame.

[0006] As a further description of the above technical solution: the top of the seat plate is telescopically connected to an extension plate, the bottom of the seat plate and the backrest are provided with sponge blocks, and waterproof cloth is sewn on the outside of the sponge blocks.

[0007] As a further description of the above technical solution: the support member includes a support block fixed on the outside of the frame, a storage groove is provided on the rear side of the support block, and a support rod is telescopically connected in the storage groove.

[0008] As a further description of the above technical solution: a second slide groove is respectively provided on the upper and lower inner walls of the storage groove, a second spring in a compressed state is horizontally fixed in each of the second slide grooves, a second slider is fixed at the end of each of the second springs, the second slider is slidably connected in the second slide groove and fixedly connected to the support rod.

[0009] As a further description of the above technical solution: a first slide groove is vertically opened on the outer side of the frame, a first spring in a compressed state is vertically fixed in the first slide groove, the end of the first spring is fixedly connected to the first slider, the first slider is slidably connected in the first slide groove, the first slider is fixedly connected to the front support leg, a positioning pin is vertically fixed on the top surface of the front support leg, the positioning pin slides axially through the support block, and is connected to the support rod.

[0010] As a further description of the above technical solution: a through hole connected to the receiving groove is vertically penetrated through the bottom surface of the support block, a limiting groove adapted to the through hole is vertically opened on the bottom surface of the support rod, and the positioning pin axially passes through the through hole and is axially inserted in the limiting groove.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, the high-balance anti-rollover steel shopping cart has two front legs movably connected on the front side of the frame, and a support member consisting of a support block, a support rod, a second slide groove, a second slider and a second spring is movably connected to the top surface of each of the two front legs, and is limitedly connected to the support rod by a locating pin, so that when the frame rolls backward, the support rod supports the frame to prevent the frame from rolling over. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of the overall structure of the high-balance anti-rollover steel shopping cart proposed by the utility model;

[0014] Figure 2 This is a main cross-sectional view of the connection between the support block and the front support leg of the high-balance anti-rollover steel shopping cart proposed by the utility model;

[0015] Figure 3 A side cross-sectional view of the connection between the support block and the front support leg of the high-balance anti-rollover steel shopping cart proposed by the utility model;

[0016] Figure 4 The utility model provides a high-balance anti-rollover steel shopping cart. Figure 1 A magnified view of the structure at center A;

[0017] Figure 5The utility model provides a high-balance anti-rollover steel shopping cart. Figure 2 A magnified view of the structure at point B.

[0018] Legend:

[0019] 1. Frame; 2. Support block; 3. Front support leg; 4. Roller; 5. Rear support leg; 6. Push handle; 7. Seat plate; 8. Storage slot; 9. Support rod; 10. Limiting slot; 11. Through hole; 12. First spring; 13. First slider; 14. First slide slot; 15. Positioning pin; 16. Through slot; 17. Stop bar; 18. Extension plate; 19. Second slide slot; 20. Second slider; 21. Second spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figures 1 to 5 The utility model provides a high-balance anti-rollover steel shopping cart: comprising a frame 1, the rear end of the frame 1 is fixedly connected to two mirror-symmetrical rear legs 5, the front end of the frame 1 is movably connected to two mirror-symmetrical front legs 3, a push handle 6 is fixed to the rear side of the frame 1, a support member is fixed on each side of the frame 1, the support member is fixedly connected to the rear legs 5 and movably connected to the front legs 3, a first slide groove 14 is vertically opened on the outer side of the frame 1, a first spring 12 in a compressed state is vertically fixed in the first slide groove 14, and the first spring 1 The end of the frame 1 is fixedly connected to the first slider 13, the first slider 13 is slidably connected in the first slide groove 14, the first slider 13 is fixedly connected to the front support leg 3, the front support leg 3 and the rear support leg 5 are both movably connected to the roller 4, the inner rear end of the frame 1 passes through the through groove 16, the middle part of the inner wall of the through groove 16 is fixedly connected to the blocking bar 17, a seat plate 7 is provided at the through groove 16, the seat plate 7 is fixedly connected to the frame 1, the top of the seat plate 7 is telescopically connected to an extension plate 18, the bottom of the seat plate 7 and the backrest position are both provided with sponge blocks, and waterproof cloth is sewn on the outside of the sponge blocks;

[0022] The support member includes a support block 2 fixed to the outside of the frame 1, a storage groove 8 is provided on the rear side of the support block 2, a support rod 9 is telescopically connected in the storage groove 8, a second slide groove 19 is provided on the upper and lower inner walls of the storage groove 8, a second spring 21 in a compressed state is horizontally fixed in each second slide groove 19, a second slider 20 is fixed at the end of each second spring 21, the second slider 20 is slidably connected in the second slide groove 19 and fixedly connected to the support rod 9, a positioning pin 15 is vertically fixed on the top surface of the front support foot 3, the positioning pin 15 axially slides through the support block 2 and is connected to the support rod 9, the bottom surface of the support block 2 vertically penetrates a through hole 11 connected to the storage groove 8, the bottom surface of the support rod 9 vertically provides a limiting groove 10 adapted to the through hole 11, the positioning pin 15 axially passes through the through hole 11, and is axially inserted in the limiting groove 10.

[0023] By movably connecting the two front legs 3 at the front side of the frame 1, and movably connecting a support member consisting of a support block 2, a support rod 9, a second slide groove 19, a second slider 20 and a second spring 21 on the top surface of each of the two front legs 3, and limiting connection with the support rod 9 through a positioning pin 15, when the frame 1 is tipped backward, the support rod 9 supports the frame 1 to prevent the frame 1 from tipping over;

[0024] Working principle: Under normal circumstances, the first spring 12 is in a compressed state under the action of the dead weight of the frame 1, and the top surface of the front support leg 3 is attached to the bottom of the support block 2. The positioning pin 15 will pass through the through hole 11 and be inserted into the limiting groove 10 on the bottom surface of the support rod 9. At this time, the second spring 21 is in a compressed state. When the frame 1 flips backward because the weight on the rear side is greater than the weight on the front side, the pressure of the frame 1 pushing the first spring 12 disappears, and the first spring 12 resets, so that the support block 2 is separated from the top surface of the front support leg 3, and the positioning pin 15 is separated from the support rod 9. At this time, after the positioning pin 15 stops limiting the support rod 9, the second spring 21 in a compressed state is reset. When the second spring 21 is reset, it pushes the support rod 9 out of the storage groove 8 in the support block 2, so that the support rod 9 forms a support point on the rear side of the frame 1, which prevents the frame 1 from continuing to flip over each other, thereby avoiding the problem of the shopping cart tipping over backwards due to the different weights at the front and back.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-balance anti-rollover steel shopping cart, comprising a frame (1), characterized in that: The rear end of the frame (1) is fixedly connected to two mirror-symmetrical rear legs (5), the front end of the frame (1) is movably connected to two mirror-symmetrical front legs (3), a push handle (6) is fixed to the rear side of the frame (1), a support member is fixed to each side of the frame (1), the support member is fixedly connected to the rear legs (5) and movably connected to the front legs (3), the front legs (3) and the rear legs (5) are both movably connected to rollers (4), the inner rear end of the frame (1) passes through a through slot (16), a blocking strip (17) is fixedly connected to the middle of the inner wall of the through slot (16), a seat plate (7) is provided at the through slot (16), and the seat plate (7) is fixedly connected to the frame (1); The support member comprises a support block (2) fixed on the outside of the frame (1); a storage groove (8) is provided on the rear side of the support block (2); a support rod (9) is telescopically connected to the storage groove (8); The upper and lower inner walls of the storage groove (8) are each provided with a second slide groove (19), a second spring (21) in a compressed state is horizontally fixed in each of the second slide grooves (19), a second slider (20) is fixed at the end of each of the second springs (21), and the second slider (20) is slidably connected in the second slide groove (19) and fixedly connected to the support rod (9); A first slide groove (14) is vertically provided on the outer side of the frame (1), a first spring (12) in a compressed state is vertically fixed in the first slide groove (14), the end of the first spring (12) is fixedly connected to a first slider (13), the first slider (13) is slidably connected in the first slide groove (14), the first slider (13) is fixedly connected to the front support leg (3), a positioning pin (15) is vertically fixed on the top surface of the front support leg (3), the positioning pin (15) axially slides through the support block (2) and is connected to the support rod (9); A through hole (11) communicating with the receiving groove (8) is vertically penetrated through the bottom surface of the support block (2); a limiting groove (10) matching with the through hole (11) is vertically opened on the bottom surface of the support rod (9); the positioning pin (15) axially passes through the through hole (11) and is axially inserted into the limiting groove (10).

2. The high-balance anti-rollover steel shopping cart according to claim 1, characterized in that: The top of the seat plate (7) is telescopically connected to an extension plate (18); the bottom and backrest of the seat plate (7) are both provided with sponge blocks, and waterproof cloth is sewn on the outside of the sponge blocks.

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