CN212766414U

CN212766414U - Shopping cart capable of automatically braking

Info

Publication number: CN212766414U
Application number: CN202020366904.7U
Authority: CN
Inventors: 罗琛睿; 龚霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-22
Filing date: 2020-03-22
Publication date: 2021-03-23
Anticipated expiration: 2030-03-22

Abstract

The utility model discloses a shopping cart capable of automatically braking, in particular to the technical field of shopping carts, which comprises a base, wherein one end of the base is fixedly provided with two rear wheels, the outer surfaces of the two rear wheels are connected with a frame through shafts, a front wheel is fixedly arranged between one end of the base, which is far away from the rear wheels, and the frame, and the upper surface of the base is fixedly provided with a shopping basket; the inside of base is close to front wheel department and is provided with the machine box, the one end external surface fixed mounting of base has ultrasonic ranging appearance, one side that ultrasonic ranging appearance was kept away from to the machine box just is located fixed mounting between two frames has the cylinder, two the fixed fly leaf that is equipped with between the frame, and the fixed brake lever that is equipped with of one end that the fly leaf is close to two rear wheels. The utility model discloses in, this shopping cart has the automatic brake function, and overall structure is simple, and the volume is the same basically with traditional shopping cart size, convenient to use, and the security is better.

Description

Shopping cart capable of automatically braking

Technical Field

The utility model relates to a shopping cart technical field, concretely relates to but shopping cart of self-actuating brake.

Background

A shopping cart is a cart for temporarily storing selected items by customers in a large-sized shopping mall such as a supermarket. The shopping cart has a plurality of layers, different articles can be stored, and some shopping carts can be used for carrying children, along with the continuous development of the technology, the use places of the shopping cart are also continuously enlarged and developed in a more intelligent direction, and the shopping cart can be divided into a plurality of types according to the use materials.

The prior art has the following defects: the shopping cart of traditional structure has the brake structure and needs manual operation, but unable timely reaction under the proruption state, and its result of use is not good, and in addition, intelligent shopping cart does not have the function of better automatic brake, and is bulky, uses comparatively inconveniently.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a but shopping cart of automatic brake, the brake structure that the shopping cart that aims at solving traditional structure had needs manual operation for one, but unable timely reaction under the emergency, its result of use is not good, and in addition, intelligent shopping cart does not have better automatic brake's function, and is bulky, uses comparatively inconvenient problem.

In order to achieve the above object, the present invention provides the following technical solutions:

according to the first aspect of the utility model, the shopping cart capable of automatically braking comprises a base, wherein one end of the base is fixedly provided with two rear wheels, the outer surfaces of the two rear wheels are connected with a frame through a shaft, a front wheel is fixedly arranged between one end of the base, which is far away from the rear wheels, and the frame, the upper surface of the base is fixedly provided with a shopping basket, and the outer side wall of the shopping basket is fixedly provided with a hook;

a machine box is arranged in the base and close to the front wheels, an ultrasonic distance meter is fixedly arranged on the outer surface of one end of the base, a control switch is arranged on the outer surface of the base, an air cylinder is fixedly arranged on one side of the machine box, which is far away from the ultrasonic distance meter, and is positioned between the two frames, a movable plate is fixedly arranged between the two frames, a brake rod is fixedly arranged at one end of the movable plate, which is close to the two rear wheels, a first lug is arranged at each of the two ends of the movable plate, which are respectively close to the frames, and the movable plate is in shaft connection with the;

the inside of machine box is fixed and is equipped with lithium cell, controller, relay and lithium cell interface constitution that charges, the lithium cell passes through electric wire electric connection with controller, relay and ultrasonic ranging appearance respectively.

Further, the relay is electrically connected with the control switch through an electric wire.

Further, the relay is electrically connected with the controller and the ultrasonic distance measuring instrument through electric wires.

Furthermore, a supporting frame is hinged to the outer side wall of the base close to the rear wheel.

Furthermore, the upper surface of the base is fixed with two clamping seats by bolts at the positions close to the rear wheels, and the outer side wall of the shopping basket is provided with a second convex block clamped with the clamping seats.

Furthermore, the outer side wall of the base is provided with a sliding groove close to the control switch, and the sliding groove is vertically arranged relative to the control switch.

Furthermore, the inside block of spout has the fastener, the shopping basket is close to spout department and offers the recess that suits with the fastener.

The utility model has the advantages of as follows:

1. through the ultrasonic distance measuring instrument who sets up, when detecting that the shopping cart is less than the settlement distance from the barrier distance, the shrink of controller control cylinder, the fly leaf through first lug coupling between two frames is connected with the cylinder, under the shrink of cylinder, the fly leaf rotates with the frame, thereby the fly leaf is close to the rotation that supports the rear wheel of the one end perk of rear wheel, realize urgent braking effect, the shopping cart is in quiescent condition immediately, this shopping cart has the automatic braking function, and overall structure is simple, the volume is the same basically with traditional shopping cart size, high durability and convenient use, and the security is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is an assembly schematic diagram provided by the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a perspective view of a movable plate provided by the present invention;

fig. 4 is an internal schematic view of the housing provided by the present invention;

FIG. 5 is a front view of the shopping basket provided by the present invention;

in the figure: 1. a base; 2. a rear wheel; 3. a frame; 4. a front wheel; 5. a case; 6. an ultrasonic range finder; 7. a shopping basket; 8. a support frame; 9. a brake lever; 10. a movable plate; 11. a cylinder; 12. a control switch; 13. a first bump; 14. a lithium battery; 15. a controller; 16. a relay; 17. a lithium battery charging interface; 18. a second bump; 19. a groove; 20. hooking; 21. a chute; 22. a card holder; 23. the fastener.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the shopping cart capable of automatically braking comprises a base 1, wherein two rear wheels 2 are fixedly arranged at one end of the base 1, a frame 3 is coupled to the outer surfaces of the two rear wheels 2, a front wheel 4 is fixedly arranged between one end of the base 1 far away from the rear wheels 2 and the frame 3, a shopping basket 7 is fixedly arranged on the upper surface of the base 1, and a hook 20 is fixedly arranged on the outer side wall of the shopping basket 7 and used for hanging accompanying articles of a user;

a machine box 5 is arranged in the base 1 close to the front wheel 4, an ultrasonic range finder 6 is fixedly mounted on the outer surface of one end of the base 1, the ultrasonic range finder is mainly used for reverse car reminding equidistant measurement and can quickly measure distance information between a target, a control switch 12 is arranged on the outer surface of the base 1, a cylinder 11 is fixedly mounted on one side of the machine box 5, away from the ultrasonic range finder 6, between two frames 3, a movable plate 10 is fixedly arranged between the two frames 3, a brake rod 9 is fixedly arranged at one end of the movable plate 10, close to the two rear wheels 2, two ends of the movable plate 10 are respectively provided with a first lug 13 close to the frames 3, and the movable plate 10 is in shaft connection with the frames 3 through the first lug 13;

the inside of machine box 5 is fixed and is equipped with lithium cell 14, controller 15, relay 16 and lithium cell interface 17 that charges and constitutes, lithium cell 14 passes through electric wire electric connection with controller 15, relay 16 and ultrasonic ranging appearance 6 respectively.

Further, the relay 16 is electrically connected to the control switch 12 through a wire.

Further, the relay 16 is electrically connected to the controller 15 and the ultrasonic distance meter 6 through electric wires.

Furthermore, the outer side wall of the base 1 is hinged with a support frame 8 near the rear wheel 2, so that a user can conveniently push the shopping cart.

Further, two clamping seats 22 are fixed on the upper surface of the base 1 near the rear wheel 2 by bolts, and a second convex block 18 clamped with the clamping seats 22 is arranged on the outer side wall of the shopping basket 7, so that the structure between the shopping basket 7 and the base 1 is stable and can be detached.

Furthermore, a sliding groove 21 is formed on the outer side wall of the base 1 near the control switch 12, and the sliding groove 21 is vertically arranged relative to the control switch 12.

Furthermore, a clamping piece 23 is clamped inside the sliding groove 21, a groove 19 matched with the clamping piece 23 is formed in the position, close to the sliding groove 21, of the shopping basket 7, and the stability of the connection relationship between the shopping basket 7 and the base 1 is guaranteed.

The implementation scenario is specifically as follows: when the utility model is used, the Arduino module is arranged in the controller 15, the Arduino module is pre-programmed with an automatic brake program, the controller 15 controls the work of the ultrasonic range finder 7, according to the preset range finding distance, when an obstacle exists in front of the shopping cart, the ultrasonic range finder 6 detects that the distance is less than 20cm, the controller 15 controls the cylinder 11 to contract, the movable plate 10 connected with the cylinder 11 through the first lug 13 between the two frames 3, under the contraction of the cylinder 11, the movable plate 10 rotates with the frames 3, the brake rod 9 arranged at one end of the movable plate 10 close to the rear wheel 2 is tilted to abut against the rotation of the rear wheel 2, the emergency braking effect is realized, the shopping cart is in a static state immediately, after a user reacts, and presses the control switch 12, the controller switch 12 controls the relay 16, and the relay 16 enables the controller 15 to control the cylinder 11 to reset, the shopping cart can be separated from the abutting state of the brake rod 9 at the end part of the movable plate 10 and the rear wheel 2, has an automatic braking function, is simple in integral structure, is basically the same as the traditional shopping cart in size, is convenient to use and is better in safety.

The working principle is as follows:

referring to the attached drawings 1-5 of the specification, when an obstacle exists in front of the shopping cart, when the distance detected by the ultrasonic distance measuring instrument 6 is less than 20cm, the controller 15 controls the cylinder 11 to contract, the movable plate 10 connected with the two frames 3 through the first bump 13 is connected with the cylinder 11, under the contraction of the cylinder 11, the movable plate 10 rotates with the frames 3, the brake rod 9 is tilted to abut against the rotation of the rear wheel 2, so that an emergency braking effect is realized, the shopping cart is immediately in a static state, and after a user responds, and presses the control switch 12, the shopping cart can be separated under the control of the controller 15.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The shopping cart capable of automatically braking comprises a base (1), and is characterized in that: two rear wheels (2) are fixedly arranged at one end of the base (1), a frame (3) is connected to the outer surfaces of the two rear wheels (2) in a shaft mode, a front wheel (4) is fixedly arranged between one end, far away from the rear wheels (2), of the base (1) and the frame (3), a shopping basket (7) is fixedly arranged on the upper surface of the base (1), and a hook (20) is fixedly arranged on the outer side wall of the shopping basket (7);

a machine box (5) is arranged in the base (1) close to the front wheels (4), an ultrasonic range finder (6) is fixedly mounted on the outer surface of one end of the base (1), a control switch (12) is arranged on the outer surface of the base (1), a cylinder (11) is fixedly mounted between the two frames (3) and on one side, away from the ultrasonic range finder (6), of the machine box (5), a movable plate (10) is fixedly arranged between the two frames (3), a brake rod (9) is fixedly arranged on one end, close to the two rear wheels (2), of the movable plate (10), first convex blocks (13) are arranged at two ends of the movable plate (10) close to the frames (3) respectively, and the movable plate (10) is in shaft connection with the frames (3) through the first convex blocks (13);

the lithium battery charging device is characterized in that a lithium battery (14), a controller (15), a relay (16) and a lithium battery charging interface (17) are fixedly arranged inside the case (5), and the lithium battery (14) is electrically connected with the controller (15), the relay (16) and the ultrasonic range finder (6) through electric wires respectively.

2. The shopping cart capable of automatically braking as claimed in claim 1, wherein: the relay (16) is electrically connected with the control switch (12) through an electric wire.

3. The shopping cart capable of automatically braking as claimed in claim 1, wherein: the relay (16) is electrically connected with the controller (15) and the ultrasonic distance measuring instrument (6) through electric wires.

4. The shopping cart capable of automatically braking as claimed in claim 1, wherein: the outer side wall of the base (1) is hinged with a support frame (8) near the rear wheel (2).

5. The shopping cart capable of automatically braking as claimed in claim 1, wherein: two clamping seats (22) are fixed on the upper surface of the base (1) close to the rear wheel (2) through bolts, and second convex blocks (18) clamped with the clamping seats (22) are arranged on the outer side wall of the shopping basket (7).

6. The shopping cart capable of automatically braking as claimed in claim 1, wherein: the outer side wall of the base (1) is provided with a sliding groove (21) close to the control switch (12), and the sliding groove (21) is vertically arranged relative to the control switch (12).

7. The shopping cart capable of automatically braking as claimed in claim 6, wherein: the inside block of spout (21) has fastener (23), shopping basket (7) are close to spout (21) department and offer recess (19) that suit with fastener (23).