CN109398447B

CN109398447B - Shopping cart

Info

Publication number: CN109398447B
Application number: CN201811535282.XA
Authority: CN
Inventors: 叶王勇; 赵伟; 简思鑫
Original assignee: Chongqing Artop Yuli Technology Co Ltd
Current assignee: Chongqing Artop Yuli Technology Co Ltd
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2024-01-30
Anticipated expiration: 2038-12-14
Also published as: CN109398447A

Abstract

The invention relates to the technical field of vehicles, and discloses a shopping cart which comprises a carrying seat, a front wheel assembly, a rear wheel assembly and a handle assembly, wherein the handle assembly is hinged with the rear end of the carrying seat; the handle assembly is provided with a folding device which enables the front end of the carrying seat to swing relative to the handle assembly and a telescopic device which enables the handle assembly to stretch up and down. Under the action of the folding device and the telescopic device, the folding of the carrying seat and the contraction of the handle assembly are realized, the whole occupied space of the shopping cart is reduced, and the shopping cart is convenient to store and carry; in addition, under the cooperation of carrying thing seat, preceding wheel subassembly, back wheel subassembly and handle subassembly, the use to the shopping cart of being convenient for, the consumer is convenient for the shopping cart to play at any time and any place when shopping to carry the thing effect at any time to the consumer is convenient for use to the shopping cart.

Description

Shopping cart

Technical Field

The invention relates to the technical field of carts, in particular to a shopping cart.

Background

With the improvement of the life quality of people, more and more people select shopping, and shopping becomes an indispensable part of life.

At present, people select shopping places to have various choices, such as supermarkets, markets, business circles, trade areas and the like, and in some specific occasions, corresponding shopping carts are generally provided so as to provide convenience for consumers and facilitate the consumers to shop, but the shopping carts are limited to specific areas and leave the specific areas, and the consumers can only extract the purchased objects by themselves, so that time and labor are wasted.

In the prior art, a consumer carries a commodity at any time and any place through the handcart from the handcart, but the handcart occupies a large space, is inconvenient to carry, has single functionality, and is single in use and inconvenient to use.

Disclosure of Invention

The invention aims to provide a shopping cart and aims to solve the problem that the shopping cart in the prior art is inconvenient to use.

The shopping cart comprises a carrying seat, a front wheel assembly, a rear wheel assembly and a handle assembly, wherein the handle assembly is hinged with the rear end of the carrying seat, the front wheel assembly is arranged below the carrying seat and is connected with the carrying seat, the handle assembly extends downwards to the lower part of the carrying seat to form a mounting section, and the rear wheel assembly is provided with the mounting section; the handle assembly is provided with a folding device which enables the front end of the carrying seat to swing relative to the handle assembly and a telescopic device which enables the handle assembly to stretch up and down.

Further, the folding device comprises a rotating piece arranged at the rear end of the carrying seat, a moving block arranged at the mounting section and a steel wire rope, wherein one end of the steel wire rope is fixed with the moving block, the other end of the steel wire rope is fixed with the rotating piece, and the steel wire rope is in a tensioning state; when the moving block is positioned on the upper part of the mounting section, the carrying seat is horizontally arranged, and when the moving block moves downwards, the moving block drives the steel wire rope to move, and the steel wire rope pulls the front end of the carrying seat to gradually swing towards the handle assembly.

Further, a fixed block is arranged in the installation section, the fixed block is fixedly arranged, and the fixed block is positioned above the moving block; one end of the steel wire rope upwards penetrates through the fixed block from the lower part of the fixed block, upwards penetrates through the fixed block in a roundabout way, and downwards extends to fix the moving block.

Further, the handle assembly comprises an upper rod body and a lower rod body with a plurality of fixing holes, wherein the lower part of the upper rod body is embedded into the lower rod body, and the plurality of fixing holes are arranged at intervals along the longitudinal direction; the telescopic device comprises a locking structure, and the lower part of the upper rod body is fixed by the locking structure; when the locking structure penetrates through the fixing hole, the upper rod body and the lower rod body are relatively fixed, and when the locking structure is positioned in the lower rod body, the upper rod body moves up and down relative to the lower rod body along the longitudinal direction.

Further, the locking structure comprises a transverse spring which is transversely telescopic and a locking piece which is horizontally arranged, one end of the locking piece is fixed with the transverse spring, and the other end of the locking piece is movably arranged; when the locking piece is positioned in the lower rod body, the transverse spring is in a compressed state, and when the fixing hole is opposite to the locking piece, the transverse spring pushes the locking piece to penetrate through the fixing hole.

Further, the telescopic device comprises a traction rope and a button piece arranged at the upper part of the upper rod body, one end of the traction rope is fixed with the button piece, and the other end of the traction rope is fixed with one end of the locking piece; and pressing the button piece to enable the traction rope to pull the locking piece to enter the lower rod body.

Further, a fixed seat is arranged at the rear end of the carrying seat, the fixed seat is provided with a rear end face deviating from the carrying seat, a first fixing groove which is sunken towards the carrying seat is formed in the rear end face of the fixed seat, and the first fixing groove penetrates through the top of the fixed seat; when the lower rod body is embedded into the first fixing groove, the lower rod body and the carrying seat are vertically and fixedly arranged, and when the lower rod body is separated from the first fixing groove, the lower rod body and the carrying seat are obliquely arranged.

Further, the fixing seat extends upwards to form an extension block, the extension block is provided with a second fixing groove, and the second fixing groove penetrates through the top of the extension block to form a top opening; the lower rod body is provided with a sliding block which moves back and forth relative to the lower rod body, the sliding block is provided with a clamping block, when the lower rod body is embedded into the first fixing groove, the clamping block is embedded into the second fixing groove, and the lower rod body and the carrying seat are vertically and fixedly arranged; the lower rod body is provided with a longitudinal spring and a lifting rope which are longitudinally arranged, the upper end of the longitudinal spring is fixedly arranged, the lower end of the longitudinal spring is fixedly arranged with the sliding block, the lower end of the lifting rope is fixedly arranged with the sliding block, the lifting rope moves upwards to drive the sliding to move upwards, and the longitudinal spring is in a compressed state; when the clamping block and the second fixing groove are arranged vertically and oppositely, the longitudinal spring drives the clamping block to be embedded into the second fixing groove.

Further, the rear wheel assembly comprises a rear axle with a communication hole and two groups of rear wheel groups connected with two ends of the rear axle, the handle assembly comprises two lower rod bodies arranged side by side, the lower parts of the lower rod bodies form the mounting sections, and two ends of the rear axle respectively penetrate through the two mounting sections to be connected with the two rear wheel groups; the rear wheel set is provided with an embedded section, the embedded section is provided with an embedded groove, the rear shaft is provided with a quick-release spring and a quick-release block, and one end of the quick-release spring is fixedly arranged; when the communication hole and the embedded groove are arranged in a right opposite way, the quick release spring controls the quick release block to penetrate through the communication hole and be embedded into the embedded groove of the rear shaft.

Further, the front wheel assembly and the rear wheel assembly are respectively provided with a bottom end portion abutting against the ground, and when the bottom end portions of the front wheel assembly and the rear wheel assembly are horizontally arranged, the carrying seat is horizontally arranged.

Compared with the prior art, the shopping cart provided by the invention realizes carrying under the action of the carrying seat, and the shopping cart can be moved by the cooperation of the front wheel assembly, the rear wheel assembly and the handle assembly, so that the shopping cart can be used at any time and any place; in addition, under the action of the folding device and the telescopic device, the folding of the carrying seat and the contraction of the handle assembly are realized, the whole occupied space of the shopping cart is reduced, and the shopping cart is convenient to store and carry; in addition, under the cooperation of carrying thing seat, preceding wheel subassembly, back wheel subassembly and handle subassembly, the use to the shopping cart of being convenient for, the consumer is convenient for the shopping cart to play at any time and any place when shopping to carry the thing effect at any time to the consumer is convenient for use to the shopping cart.

Drawings

FIG. 1 is a schematic perspective view of a shopping cart provided by an embodiment of the present invention;

FIG. 2 is a right side view of a shopping cart in a collapsed configuration;

FIG. 3 is an enlarged schematic view of portion A of a shopping cart according to an embodiment of the present invention

FIG. 4 is a right side view of a shopping cart in an expanded state;

FIG. 5 is an enlarged schematic view of section B of the shopping cart provided by an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of section C of a shopping cart according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of section D of a shopping cart according to an embodiment of the present invention;

FIG. 8 is a schematic perspective view of a shopping cart in a pull mode according to an embodiment of the present invention;

FIG. 9 is an enlarged schematic view of portion E of a shopping cart according to an embodiment of the present invention;

FIG. 10 is an enlarged schematic view of section F of a shopping cart provided by an embodiment of the present invention;

FIG. 11 is a schematic front view of a shopping cart provided by an embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view of a portion G of a shopping cart in accordance with an embodiment of the present invention;

FIG. 13 is an exploded view of a section G of a shopping cart in accordance with an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

The implementation of the present invention will be described in detail below with reference to specific embodiments.

Referring to fig. 1-13, a preferred embodiment of the present invention is provided.

The shopping cart provided by the invention is inconvenient to use.

The shopping cart comprises a carrying seat 200, a front wheel assembly 300, a rear wheel assembly 400 and a handle assembly 100, wherein the handle assembly 100 is hinged with the rear end of the carrying seat 200, the front wheel assembly 300 is positioned below the carrying seat 200, the front wheel assembly 300 is connected with the carrying seat 200, the handle assembly 100 extends downwards to the lower side of the carrying seat 200 to form a mounting section, and the rear wheel assembly 400 is provided with the mounting section; the handle assembly 100 is provided with a folding device 500 and a telescopic device 600, the folding device 500 enables the front end of the carrying seat 200 to swing relative to the handle assembly 100, and the telescopic device 600 enables the handle assembly 100 to extend and retract up and down.

The shopping cart realizes carrying under the action of the carrying seat 200, and the shopping cart is moved by the cooperation of the front wheel assembly 300, the rear wheel assembly 400 and the handle assembly 100, so that the shopping cart can be used anytime and anywhere; in addition, under the action of the folding device 500 and the telescopic device 600, the folding of the carrying seat 200 and the contraction of the handle assembly 100 are realized, the whole occupied space of the shopping cart is reduced, and the shopping cart is convenient to store and carry; in addition, the shopping cart is convenient to use under the cooperation of the carrying seat 200, the front wheel assembly 300, the rear wheel assembly 400 and the handle assembly 100, and the shopping cart is convenient to carry objects at any time and any place when a consumer shops, so that the consumer can use the shopping cart conveniently.

Shopping barrel 700 is fixed on carrying seat 200, and shopping barrel 700 has a top opening, so that the shopping cart has a larger placing space, and is convenient for consumers to shop.

The inside of the shopping barrel 700 is provided with a plurality of layers of partition boards which are arranged at intervals along the longitudinal direction; realize layering and place, be convenient for different commodity difference place.

The baffle can be the vertical bucket wall that attaches in shopping barrel 700 of pasting, and the one end of baffle articulates the bucket wall, and the other end swing joint bucket wall of baffle, and during the use, the other end of swing baffle is the level and arranges, realizes that shopping barrel 700's inside carries out the layering.

The wall of shopping barrel 700 opposite to the baffle is formed with a chute which is longitudinally arranged, the chute is provided with a fixed position, the other end of the baffle is provided with a lug, and when the lug is embedded into the chute to move to the fixed position, the baffle is in a water surface shape at the moment, so that the use of the baffle is realized.

Along the longitudinal direction, each baffle misplaces, avoids each baffle to cause the mutual influence.

The shopping barrel 700 is provided with a first magnetic block, the carrying seat 200 is provided with a second magnetic block, and the second magnetic block is attracted with the magnetism of the first magnetic block, so that the shopping barrel 700 and the carrying seat 200 are conveniently fixed relatively.

The second magnetic block is electrified to generate magnetism, and the handle assembly 100 is provided with a control switch which controls the second magnetic block to be electrified or powered off; thereby facilitating the installation and removal of the shopping barrel 700.

The folding device 500 comprises a rotating member 510 arranged at the rear end of the carrying seat 200, a moving block 520 arranged at the mounting section and a steel wire rope 530, wherein one end of the steel wire rope 530 is fixed with the moving block 520, the other end of the steel wire rope 530 is fixed with the rotating member 510, and the steel wire rope 530 is in a tensioning state; when the moving block 520 is positioned at the upper part of the mounting section, the carrying seat 200 is horizontally arranged, and when the moving block 520 moves downwards, the moving block 520 drives the steel wire rope 530 to move, and the steel wire rope 530 pulls the front end of the carrying seat 200 to gradually swing towards the handle assembly 100; thereby enabling folding of the carrier 200.

Furthermore, a fixed block 540 is arranged in the installation section, the fixed block 540 is fixedly arranged, and the fixed block 540 is positioned above the moving block 520; one end of the wire rope 530 penetrates the fixed block 540 upward from below the fixed block 540, then penetrates the fixed block 540 downward in a roundabout way, and extends downward to fix the moving block 520; when the carrying seat 200 is folded or unfolded, the moving section of the steel wire rope 530 is enlarged, so that the pulling force is changed along different directions of the steel wire rope 530, and the steel wire rope 530 is protected.

The other end of the wire rope 530 is disposed around the outer surface of the rotator 510; along the circumference of the rotating member 510, the rotating member 510 has a circumferential distance, and when the carrier 200 is in the folded state, the wire rope 530 is wound around the outer surface of the rotating member 510 in a range of 1/3 of the circumferential distance to 2/3 of the circumferential distance; the wire rope 530 is conveniently wound around or unwound from the rotating member 510, thereby facilitating the folding or unfolding of the carrier 200; and effectively avoid the defect of the winding of the steel wire rope 530 and influence the folding of the carrying seat 200.

When the carrying seat 200 is in the folded state, the wire rope 530 is wound around the outer surface of the rotating member 510 by a circumferential distance of 1/2; in this way, the phenomenon that the folding of the carrying seat 200 is affected due to insufficient winding of the steel wire rope 530 is effectively avoided, and the phenomenon that the folding of the carrying seat 200 is affected due to knotting caused by excessive winding of the steel wire rope 530 when the carrying seat 200 is unfolded is avoided; at the same time, unnecessary waste of the wire rope 530 is avoided, and the cost is reduced.

The folding shopping cart structure comprises a front wheel assembly 300 and a rear wheel assembly 400, and movement of the folding shopping cart is achieved.

The carrying seat 200 has a lower end surface facing the ground, the front wheel assembly 300 is connected with the lower end surface of the carrying seat 200, the grip assembly 100 extends to the lower side of the lower end surface of the carrying seat 200 to form a mounting section, and the rear wheel assembly 400 is fixedly mounted on the mounting section; a link is provided between the front wheel assembly 300 and the rear wheel assembly 400; the use stability of the front wheel assembly 300 and the rear wheel assembly 400 is enhanced by the link.

Furthermore, when the carrying seat 200 is horizontally arranged, the connecting rod comprises a horizontal section horizontally arranged, a first inclined section obliquely arranged downwards and a second inclined section obliquely arranged downwards, one end of the horizontal section is connected with the front wheel assembly 300, the other end of the horizontal section is abutted to the first inclined section, one end of the second inclined section is connected with the rear wheel assembly 400, and the other end of the second inclined section is abutted to the first inclined section; the downward inclination angle of the first inclination section is larger than that of the second inclination section; the arrangement is beneficial to enhancing the pressure resistance of the connecting rod and prolonging the service life of the connecting rod; and, first inclination section angle of declining is greater than second inclination section angle of declining down, and the second inclination section plays the cushioning effect, strengthens shopping cart removal's stability.

Specifically, the front wheel assembly 300 and the rear wheel assembly 400 have bottom ends that abut against the ground, respectively, and when the bottom ends of the front wheel assembly 300 and the rear wheel assembly 400 are horizontally arranged, the carrier 200 is horizontally arranged; in this way, when the carrier 200 is in use, the front wheel assembly 300 and the rear wheel assembly 400 cooperate to facilitate reducing the sloshing of the carrier 200, facilitating the use of the shopping cart.

The front wheel assembly 300 includes a fixed plate 320, the fixed plate 320 being disposed to extend toward the rear wheel assembly 400; the carrying seat 200 is formed with a folding groove, and when the carrying seat 200 is in a folded state, the fixing plate 320 is embedded into the folding groove; thus, when the carrier 200 is folded when not in use, the fixing plate 320 is inserted into the folding groove to reinforce the front wheel assembly 300, thereby ensuring the overall folding effect.

The front wheel assembly 300 comprises two front wheels arranged in a row and a front frame 310, wherein two ends of the front frame 310 are respectively hinged with the carrying seat 200, and the two front wheels are respectively fixed with the front frame 310; when in use, the front frame 310 swings towards the direction away from the rear wheel assembly 400 to reach the fixed area of the carrying seat 200, the front frame 310 and the carrying seat 200 are relatively fixed, and the front wheel rolls to move for use; when not in use, the front frame 310 swings towards the rear wheel assembly 400, so that the occupied space of the front wheel assembly 300 is reduced, and the front wheel assembly is convenient to carry and store.

In use, the front frame 310 comprises two downwardly extending longitudinal sections 311 and a transverse section 312, the two ends of the transverse section 312 being respectively connected to the longitudinal sections 311; one end of the connecting rod is connected with the longitudinal section 311, the other end of the connecting rod is connected with the rear wheel assembly 400, and the two front wheels are respectively arranged on the transverse section 312 and extend downwards; the front wheel is convenient to contact with the ground, so that the use is convenient.

The two longitudinal sections 311 are arranged obliquely toward the opposite direction, and the distance between the two longitudinal sections 311 is gradually shortened in the direction away from the rear wheel assembly 400; the overall stability of the front frame 310 is enhanced, and the service life of the front frame 310 is prolonged.

One longitudinal section 311 extends to the front wheel direction to form a control section outside the transverse section 312, and the control section is provided with parallel ends which are arranged in parallel with the transverse section 312; thus, the front frame 310 is easily swung by the parallel ends, and the front frame 310 is easily folded.

The thickness of the fixing plate 320 is gradually reduced in the front wheel to rear wheel direction, so that the fixing plate 320 is conveniently inserted into the folding groove, thereby facilitating the folding of the front wheel assembly 300.

When the shopping cart is used, the longitudinal sections 311 are arranged obliquely outwards along the direction away from the rear wheels, so that the shock resistance of the longitudinal sections 311 is enhanced.

The grip assembly 100 includes an upper rod body 110 and a lower rod body 120 having a plurality of fixing holes, wherein the lower part of the upper rod body 110 is embedded into the lower rod body 120, and the plurality of fixing holes are arranged at intervals along the longitudinal direction; the telescopic device 600 includes a locking structure which fixes the lower portion of the upper rod body 110; when the locking structure penetrates through the fixing hole, the upper rod body 110 and the lower rod body 120 are relatively fixed, and when the locking structure is positioned in the lower rod body 120, the upper rod body 110 moves up and down relative to the lower rod body 120 along the longitudinal direction; the shrinkage of the upper rod body 110 is realized, which is beneficial to reducing the whole occupied space and facilitating the storage and carrying of the shopping cart.

Furthermore, the locking structure comprises a transverse spring 620 and a locking piece 610, wherein the transverse spring 620 is in transverse telescopic arrangement, the locking piece 610 is in horizontal arrangement, one end of the locking piece 610 is fixed with the transverse spring 620, and the other end of the locking piece 610 is in movable arrangement; when the locking member 610 is positioned inside the lower rod 120, the transverse spring 620 is in a compressed state, and when the transverse spring 620 is in an expanded state, the locking member 610 penetrates through the fixing hole; the locking of the locking structure is realized, so that the upper rod body 110 is folded to different degrees through the matching of the locking piece 610 and each fixing hole, different requirements are met, and the usability of the shopping cart is improved.

In this embodiment, the telescopic device 600 includes a pulling rope 630 and a button member 140 disposed at the upper portion of the upper rod 110, one end of the pulling rope 630 is fixed to the button member 140, and the other end of the pulling rope 630 is fixed to one end of the locking member 610; pressing the button member 140 causes the pull cord 630 to pull the locking member 610 into the interior of the lower rod body 120; thus, the button member 140 controls the locking member 610, so that the upper rod 110 moves relative to the lower rod 120, and the upper rod 110 stretches.

The telescopic device 600 comprises a button piece 140 capable of moving reciprocally, the button piece 140 is arranged longitudinally, the other end of the haulage rope 630 is connected with the button piece 140, the haulage rope 630 is in a tensioning state, when the button piece 140 is pressed, the button piece 140 moves upwards to drive the haulage rope 630 to pull the locking piece 610 to move; the button member 140 controls the locking member 610, so that the upper rod 110 moves relative to the lower rod 120, and the upper rod 110 stretches.

The other end of the traction rope 630 is connected with the upper part of the button member 140, and the traction rope 630 is driven by pressing the lower part of the button member 140; facilitating movement of the button member 140, thereby driving movement of the pull rope 630 to control the locking member 610; in addition, when the lower portion of the button member 140 is pressed, the pulling rope 630 is rapidly driven, and the pulling rope 630 has a wider moving range, so that the locking member 610 is completely inserted into the lower rod 120.

The telescopic device 600 comprises a first roller 150, wherein the first roller 150 is provided with a lower arc surface facing the ground, and the other end of the traction rope 630 is wound around the lower arc surface to extend and connect with the button piece 140; under the effect of the first roller 150, the extending direction of the traction rope 630 is changed, the traction rope 630 is connected with the button piece 140 conveniently, the first roller 150 plays a role in supporting and buffering the button piece 140, and the service life of the traction rope 630 is prolonged.

The handle telescopic structure of the shopping cart comprises a holding rod 130 which is horizontally arranged, and an upper rod body 110 is fixedly connected with the holding rod 130; the grip 130 has a lower end surface facing the ground, the button member 140 is disposed on the lower end surface of the grip 130, and the lower portion of the button member 140 extends below the lower end surface of the grip 130; thus, the button member 140 is hidden, so that the mistaken pressing is not easy to occur, and the normal use of the shopping cart is ensured.

In addition, the grip 130 is horizontal, so that the grip is convenient for a user to grasp and control; and the user has a certain distance with other parts of the shopping cart under the action of the holding rod 130, so that the shopping cart is prevented from colliding with the user.

Specifically, the handle telescopic structure of the shopping cart comprises two upper rod bodies 110, two lower rod bodies 120 and two traction ropes 630, wherein the upper rod bodies 110, the lower rod bodies 120 and the traction ropes 630 are arranged in a one-to-one correspondence manner; two ends of the holding rod 130 are respectively connected with the upper parts of the two upper rod bodies 110, and the other ends of the two traction ropes 630 respectively extend to two ends of the button piece 140 connected with the inside of the holding rod 130; under the action of the two upper rods 110 and the two lower rods 120, the overall stability is enhanced; and the control of the two traction ropes 630 is realized through the button piece 140, so that the folding of the upper rod body 110 and the folding of the carrying seat 200 can be completed by one hand, and the operation is simple, quick, time-saving and labor-saving.

Furthermore, the button member 140 is connected with the other end of the traction rope 630 to form a fixing portion, and the two fixing portions are arranged opposite to each other along the horizontal direction; thus, the button member 140 can control the two traction ropes 630 synchronously, so that the situation that the telescopic parts of the two upper rod bodies 110 are uniform, and deviation is caused to influence the use of the shopping cart is effectively avoided.

The holding rod 130 is provided with two sliding grooves which are longitudinally arranged, the two sliding grooves are oppositely arranged, two ends of the button piece 140 are respectively embedded into the sliding grooves, the sliding grooves are provided with sliding springs, one ends of the sliding springs are fixedly arranged, and the other ends of the sliding springs are connected with the button piece 140; when the button member 140 is pressed, the slide spring is in a compressed state; the reset of the button member 140 is realized under the action of the sliding spring, and the movement deflection of the button member 140 is avoided when the button member 140 is pressed under the action of the sliding groove, thereby influencing the control of the traction rope 630.

A second roller 640 which is fixedly arranged and can rotate is arranged above the transverse spring 620, one end of the second roller 640 is arranged flush with one end of the transverse spring 620 along the longitudinal direction, and one end of the hauling rope 630 is wound around one end of the second roller 640 and is connected with the locking piece 610 in an extending way; under the effect of the second roller 640, the extending direction of the hauling rope 630 is changed, so that the hauling rope 630 extends along the direction of the upper rod body 110, and the second roller 640 plays a role in supporting and buffering the button piece 140, so that the service life of the hauling rope 630 is prolonged.

Because one end of the second roller 640 is disposed flush with one end of the transverse spring 620, the traction rope 630 between the second roller 640 and the transverse spring 620 is disposed longitudinally, so that the traction rope 630 is matched with the upper rod 110.

The locking piece 610 comprises a large-diameter section and a small-diameter section, wherein the large-diameter section and the small-diameter section are in butt joint arrangement along the horizontal direction; the large-diameter section is larger than the diameter of the fixing hole, and the small-diameter section is smaller than the diameter of the fixing hole; one end of the hauling cable 630 is connected with a large-diameter section; the locking and unlocking of the locking piece 610 are realized by the relative fixation and relative movement of the upper rod body 110 and the lower rod body 120 through the small diameter section, and the locking piece 610 is prevented from being separated from the lower part of the upper rod body 110 due to the elastic force of the transverse spring 620 under the action of the large diameter section, so that the setting of the locking piece 610 is ensured.

The shopping cart with the mode switching comprises a handle assembly 100 and a carrying seat 200, wherein a fixed seat 160 is arranged at the rear end of the carrying seat 200, the upper part of the fixed seat 160 is positioned above the carrying seat 200, the lower part of the fixed seat 160 is positioned below the carrying seat 200, and the handle assembly 100 is movably connected with the lower part of the fixed seat 160; the upper part of the fixing base 160 has a first fixing groove 161 and a second fixing groove 162 arranged in a longitudinal direction; the handle assembly 100 comprises a sliding block 121 with a clamping block 125, a lifting rope 124 and a longitudinal spring 123, wherein the upper end of the longitudinal spring 123 is fixedly arranged, the lower end of the longitudinal spring 123 is fixedly arranged with the sliding block 121, and one end of the lifting rope 124 is connected with the sliding block 121; the handle assembly 100 is embedded into the first fixing groove 161, the clamping block 125 is embedded into the second fixing groove 162, and the shopping mode is realized; the lifting rope 124 is driven to drive the sliding block 121 to move upwards, the clamping block 125 is separated from the second fixing groove 162, and the handle assembly 100 and the carrying seat 200 are obliquely arranged in a cargo pulling mode.

When shopping, the handle assembly 100 is embedded into the first fixing groove 161, the clamping block 125 is embedded into the second fixing groove 162, so that the handle assembly 100 and the fixing seat 160 are relatively fixed, and at the moment, the handle assembly 100 and the carrying seat 200 are vertically arranged, so that a shopping mode is realized; when the place is shifted after shopping, the lifting rope 124 controls the sliding block 121 to move upwards, the clamping block 125 is separated from the second fixing groove 162, and the handle assembly 100 is swung along the direction away from the carrying seat 200, so that the handle assembly 100 is separated from the first fixing groove 161, and at the moment, the handle assembly 100 and the carrying seat 200 are obliquely arranged, so that a goods pulling mode is realized; like this, the user can be according to own demand, switches the mode of shopping cart, labour saving and time saving and easy operation, convenient, increase shopping cart's practicality and functionality.

The rear end of the carrying seat 200 is provided with a fixed seat 160, the fixed seat 160 is provided with a rear end surface deviating from the carrying seat 200, the rear end surface of the fixed seat 160 is provided with a first fixed groove 161 recessed towards the carrying seat 200, and the first fixed groove 161 penetrates through the top of the fixed seat 160; when the lower rod body 120 is embedded into the first fixing groove 161, the lower rod body 120 and the carrying seat 200 are vertically and fixedly arranged, the lower rod body 120 is separated from the first fixing groove 161, and the lower rod body 120 and the carrying seat 200 are obliquely arranged; the cooperation of the fixed seat 160 and the lower rod body 120 is facilitated, and the switching of the shopping cart modes is realized; in addition, the fixing action of the fixing base 160 on the lower rod 120 is ensured.

Specifically, the fixing base 160 extends upwards to form an extension block 126, the extension block 126 is provided with a second fixing groove 162, and the second fixing groove 162 penetrates through the top of the extension block 126 to form a top opening; the lower rod body 120 is provided with a sliding block 121 which moves reciprocally relative to the lower rod body 120, the sliding block 121 is provided with a clamping block 125, when the lower rod body 120 is embedded into the first fixing groove 161, the clamping block 125 is embedded into the second fixing groove 162, and the lower rod body 120 and the carrying seat 200 are vertically and fixedly arranged; the lower rod body 120 is provided with a longitudinal spring 123 and a lifting rope 124 which are longitudinally arranged, the upper end of the longitudinal spring 123 is fixedly arranged, the lower end of the longitudinal spring 123 is fixedly arranged with the sliding block 121, the lower end of the lifting rope 124 is fixedly arranged with the sliding block 121, the lifting rope 124 moves upwards to drive sliding upwards, and the longitudinal spring 123 is in a compressed state; when the clamping block 125 and the second fixing groove 162 are vertically opposite to each other, the longitudinal spring 123 drives the clamping block 125 to be embedded into the second fixing groove 162; thereby realizing the relative fixation of the fixing base 160 and the lower rod 120.

The fixing base 160 includes an extension block 126 extending upwards, the extension block 126 has a second fixing groove 162, the second fixing groove 162 penetrates through the top of the extension block 126 to form a top opening, and the clamping block 125 is embedded into the second fixing groove 162 through the top opening; under the cooperation of the clamping block 125 and the second fixing groove 162, the sliding block 121 and the fixing seat 160 are relatively fixed, so that the shopping mode is fixed, and the shopping mode is ensured.

Furthermore, the extension block 126 has an inner end surface facing the first fixing groove 161, the inner end surface forms a side end opening, the side end opening communicates with the second fixing groove 162, and the top of the side end opening penetrates through the top of the extension block 126; under the action of the side opening of the first fixing groove 161, the clamping block 125 is conveniently embedded into the second fixing groove 162, so that the relative stability of the sliding block 121 and the fixing seat 160 is ensured.

The top opening of the first fixing groove 161 has a gap with the extension block 126, so that the clamping block 125 is conveniently embedded into the second fixing groove 162 under the action of the side end opening of the first fixing groove 161, and the relative stability of the sliding block 121 and the fixing seat 160 is ensured.

The side end opening of the extension block 126 has a side wall, and the side wall extends to the first fixing groove 161 along the direction of the first fixing groove 161, so as to ensure a sufficient contact area between the clamping block 125 and the side wall, and ensure a matching effect between the clamping block 125 and the second fixing groove 162.

The extension block 126 has a rear end surface facing away from the carrying seat 200, and a first inclined surface is formed at an upper portion of the rear end surface of the extension block 126 and is obliquely arranged downwards along a direction facing away from the carrying seat 200; in this way, when the shopping mode is switched from the goods pulling mode, under the action of the first inclined plane, the collision interval between the extension block 126 and the slide block 121 is reduced, and the slide block 121 is prevented from colliding with the extension block 126; at the same time, the slider 121 is facilitated to move toward the extension block 126, thereby facilitating the switching of modes.

Furthermore, the clamping block 125 has a front end surface facing the carrying seat 200, the lower part of the front end surface of the clamping block 125 forms a second lower surface, and the second inclined surface is obliquely arranged upwards along the direction facing the carrying seat 200; when the shopping mode is switched from the goods pulling mode, under the action of the second inclined plane, the collision interval between the sliding block 121 and the extension block 126 is reduced, and the sliding block 121 and the extension block 126 are prevented from collision; at the same time, the slider 121 is facilitated to move toward the extension block 126, thereby facilitating the switching of modes.

Under the cooperation of the first inclined plane and the second inclined plane, the interference between the sliding block 121 and the extension block 126 is reduced, the service life of the part is prolonged, and meanwhile, the switching between the goods pulling mode and the shopping mode is facilitated to the greatest extent.

The fixing base 160 has a rear end surface facing away from the carrying base 200, and the rear end surface of the fixing base 160 is formed with a first fixing groove 161 recessed toward the carrying base 200; the first fixing groove 161 penetrates the top of the fixing seat 160; when the handle assembly 100 is embedded into the first fixing groove 161, the handle assembly 100 and the carrying seat 200 are vertically and oppositely fixedly arranged; the implementation is done to enter shopping mode.

The handle assembly 100 is provided with a screwing piece 127, the other end of the lifting rope 124 is wound around the screwing piece 127, and the lifting rope 124 is pulled to move upwards by rotating the screwing piece 127; the lifting rope 124 is controlled through the screwing piece 127, and the operation is simple and convenient.

Further, the screwing member 127 has an outward outer end surface forming a screwing port, and screwing of the screwing member 127 is achieved by a specific tool such as a screwdriver or the like; therefore, misoperation is effectively avoided, the shopping cart mode is switched, and normal use and trial use safety of the shopping cart are affected.

The handle assembly 100 is provided with a limiting block 122 which is fixedly arranged, the limiting block 122 is positioned above the sliding block 121 along the top-down direction, and the upper end of the longitudinal spring 123 is fixedly provided with the limiting block 122; when the lifting rope 124 pulls the sliding block 121 to abut against the limiting block 122, the swing handle assembly 100 is embedded into the first fixing groove 161, the sliding block 121 is located above the extending block 126, the lifting rope 124 moves downwards, the sliding block 121 abuts against the fixing seat 160, and the clamping block 125 is embedded into the second fixing groove 162; under the action of the limiting block 122, the sliding block 121 is prevented from moving too far, the longitudinal spring 123 is damaged, and the mode switching time is influenced; and the limiting piece plays a role in fixing the upper end of the longitudinal spring 123 and is matched with the sliding block 121 to realize the work of the longitudinal spring 123.

In addition, the screwing degree of the screwing member 127 is referred to by the stopper, so that screwing of the screwing member 127 is facilitated, and switching of modes is facilitated.

The handle assembly 100 comprises a base and a swing member movably embedded in the base, wherein the base is provided with a top opening and a side end opening, and the side end opening of the base is arranged along a direction away from the carrying seat 200; when in a shopping mode, the front end of the swinging piece is abutted against the base; when the goods is pulled, the swinging piece swings towards the opening direction of the side end of the base, and the rear end of the swinging piece is abutted against the base; under the action of the base, the relative stability of the handle assembly 100 is enhanced, normal use of the shopping mode is ensured, and the phenomenon that the use of the cargo pulling mode is influenced due to overlarge swing amplitude of the swinging piece is avoided.

The lower portion of the lower rod 120 is fixedly connected with the swing member, thereby achieving the swing of the lower rod 120.

Furthermore, the base is provided with a bottom plate which is horizontally arranged, the lower part of the swinging piece is downwards protruded to form a protruding part in an arc shape, and the range of the front end of the protruding part, which is abutted against the bottom plate, to the rear end of the protruding part, which is abutted against the bottom plate is the swinging range of the handle assembly 100; thereby realizing control of the inclination amplitude of the handle assembly 100 and the carrying seat 200 and ensuring the use of the cargo pulling mode.

The carrying seat 200 is provided with two fixing seats 160, the two fixing seats 160 are respectively in one-to-one correspondence with the two lower rod bodies 120, and the two fixing seats 160 are respectively provided with a first fixing groove 161 and a second fixing groove 162; the holding rod 130 assembly is provided with two sliding blocks 121 and two clamping blocks 125; thus, the stability is better, and the mode switching is ensured.

The lower rod 120 has an inner end face facing the other lower rod 120, and the clamping block 125 is located at the inner end face of the lower rod 120, so that space is saved, and the clamping block 125 is prevented from being exposed and damaged; thereby protecting the latch 125.

In this embodiment, the rear wheel assembly 400 includes a rear axle 410 having a communication hole 411, a rear wheel set having an embedded axle 420, a quick release spring 430, and a quick release block 450, wherein the quick release spring 430 is disposed in an extending manner along a radial direction of the rear axle 410, and an annular arrangement of embedded grooves 421 are formed on an outer surface of the embedded axle 420; the upper end of the quick release spring 430 is fixed with the rear axle 410, the lower end of the quick release spring 430 is fixed with a swinging rod 440, and the swinging rod 440 is connected with the quick release block 450; when the insertion shaft 420 is inserted into the rear shaft 410, the quick release block 450 is inserted into the insertion groove 421 through the communication hole 411; the swing rod 440 swings in a direction away from the rear axle 410, so as to drive the quick release block 450 to disengage from the embedded groove 421 and compress the quick release spring 430.

When the shopping cart is used, the rear axle 410 is embedded through the embedded axle 420, the quick release block 450 is embedded into the embedded groove 421 of the rear wheel set, so that the installation of the rear wheel set is realized, and the use of the shopping cart is realized; when the shopping cart leaves a factory for packaging or is not used, the swing rod 440 swings towards the direction away from the rear axle 410 to drive the quick-release block 450 to be separated from the embedded groove 421, so that the embedded axle 420 moves relative to the rear axle 410, the disassembly of the rear wheel group is realized, the whole occupied space of the shopping cart is reduced, and the shopping cart is convenient to store and carry; when the shopping cart is needed to be used, the embedded shaft 420 is embedded into the rear shaft 410, and under the action of the quick release spring 430, the quick release block 450 is conveniently embedded into the embedded groove 421 of the rear wheel set, so that the rear wheel set is convenient to install; the installation and the dismantlement of back wheelset are convenient for the use and accomodate of shopping cart, improve the convenience of use of shopping cart.

The rear wheel assembly 400 includes a rear axle 410 having a communication hole 411 and two sets of rear wheel sets connected to both ends of the rear axle 410, the grip assembly 100 includes two lower rod bodies 120 arranged side by side, the lower portions of the lower rod bodies 120 form mounting sections, and both ends of the rear axle 410 respectively penetrate through the two mounting sections to be connected to the two rear wheel sets; the rear wheel set is provided with an embedded section, the embedded section is provided with an embedded groove 421, the rear shaft 410 is provided with a quick-release spring 430 and a quick-release block 450, and one end of the quick-release spring 430 is fixedly arranged; when the communication hole 411 is disposed opposite to the insertion groove 421, the quick release spring 430 controls the quick release block 450 to be inserted into the insertion groove 421 of the rear shaft 410 through the communication hole 411.

The installation and the dismantlement of back wheel subassembly 400 are realized, the use and the accomodating of shopping cart of being convenient for improve the convenience of use of shopping cart.

The rear axle 410 has a lower end surface facing the ground, and the lower end surface of the rear axle 410 is provided with a mounting box, to which the quick release spring 430, the quick release block 450 and the swing lever 440 are respectively mounted; thus, the mounting box protects the quick release spring 430, the quick release block 450 and the swing lever 440, and facilitates the installation of the quick release spring 430, the quick release block 450 and the swing lever 440; in addition, the installation box is provided at the lower end surface of the rear shaft 410, prevents the swing lever 440 from being erroneously operated, and protects the installation box.

The mounting box is provided with a bottom opening, one end of the swinging rod 440 is fixed with the quick release spring 430, and the other end of the swinging rod 440 drives the quick release block 450 to be separated from the embedded groove 421 through the bottom opening; thereby controlling the swing lever 440, realizing the control of the quick release block 450, and realizing the mounting and dismounting of the rear wheel assembly 400.

The swing lever 440 is disposed in parallel with the rear axle 410, and the swing lever 440 has a protrusion protruding toward the rear axle 410; the mounting box comprises a supporting plate 460 extending towards the bottom opening direction, when the swing rod 440 is arranged in parallel with the rear axle 410, the quick release block 450 is embedded into the embedded groove 421, and the protruding part abuts against the supporting plate 460; under the action of the supporting plate 460, the swinging rod 440 is supported and fixed, so that the supporting plate 460 is convenient to install; in addition, when the disassembly is performed, the other end of the swing lever 440 is controlled to swing, the supporting plate 460 plays a role of a fulcrum, the other end of the swing lever 440 is controlled to swing conveniently, and the other end of the swing lever 440 is lowered to swing to play a role of protecting the quick-disassembly spring 430.

The protruding parts are arranged in an arc shape towards the rear axle 410, the supporting plate 460 is formed with recessed parts recessed towards the rear axle 410, and the recessed parts are arranged in an arc shape; the convex part is abutted against the concave part; this helps to reduce wear of the boss and the support plate 460, and increases the service life of the support plate 460 and the swing lever 440.

The mounting box comprises two support plates 460 which are oppositely arranged, a gap is reserved between the two support plates 460, and the upper end of the quick release spring 430 is positioned in the gap; one of the support plates 460 forms a recess; in this way, the two support plates 460 play a role in transversely fixing the quick release spring 430, so that the quick release spring 430 is prevented from being unstable in installation and affecting the use of the quick release spring 430 in the compression process of the quick release spring 430; the implementation support plate 460 has multiple functions.

The two ends of the rear axle 410 are respectively connected with rear wheel sets, and the quick release spring 430, the quick release block 450 and the swinging rod 440 are in one-to-one correspondence with the rear wheel sets; the rear wheel sets at the two ends of the rear axle 410 can be detachably mounted, so that the shopping cart is convenient to use and detach.

Specifically, the embedded shaft 420 is provided with a limiting ring 422, and the limiting ring 422 surrounds and abuts against the outer surface of the embedded shaft 420 along the circumference of the embedded shaft 420; along the axial direction of the embedded shaft 420, the embedded groove 421 and the limiting ring 422 are sequentially arranged; the rear axle 410 is provided with an embedding opening into which the embedding axle 420 is embedded, the diameter of the limiting ring 422 is larger than that of the embedding opening, and when the limiting ring 422 abuts against the rear axle 410, the communication hole 411 and the embedding groove 421 are arranged in a right opposite way; under the effect of the limiting ring 422, the communication hole 411 is aligned with the embedded groove 421, so that the quick-release block 450 is embedded into the embedded groove 421 through the communication hole 411, and the rear wheel set is convenient to install.

The installation box is provided with a fixing pin 470 which is movably arranged, and when the quick release block 450 is embedded into the embedded groove 421, the fixing pin 470 penetrates through the swinging rod 440 to be fixedly arranged; thus, under the action of the fixing pin 470, the swinging rod 440 is reinforced, so that the swinging rod 440 is prevented from shifting in the use process of the shopping cart, and the quick-release block 450 is separated from the embedded groove 421, thereby affecting the normal use of the shopping cart.

The swing lever 440 includes a baffle disposed in parallel with the rear shaft 410; the baffle covers the bottom opening; the baffle is provided with a notch which is arranged opposite to the bottom opening; through the gap, the swing rod 440 is convenient to swing, thereby facilitating the disassembly of the rear wheel set.

The front wheel assembly 300 and the rear wheel assembly 400 respectively have bottom end portions abutting against the bottom surface, and when the bottom end portions of the front wheel assembly 300 and the bottom end portions of the rear wheel assembly 400 are horizontally arranged, the carrier 200 is horizontally arranged; the cooperation effect of the front wheel assembly 300 and the rear wheel assembly 400 is improved, so that the carrier 200 is horizontally arranged when the shopping cart is used.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The shopping cart is characterized by comprising a carrying seat, a front wheel assembly, a rear wheel assembly and a handle assembly, wherein the handle assembly is hinged with the rear end of the carrying seat, the front wheel assembly is positioned below the carrying seat and is connected with the carrying seat, the handle assembly extends downwards to the lower part of the carrying seat to form a mounting section, and the rear wheel assembly is provided with the mounting section; the handle assembly is provided with a folding device which enables the front end of the carrying seat to swing relative to the handle assembly and a telescopic device which enables the handle assembly to stretch up and down;

the folding device comprises a rotating piece arranged at the rear end of the carrying seat, a moving block arranged at the mounting section and a steel wire rope, wherein one end of the steel wire rope is fixed with the moving block, the other end of the steel wire rope is fixed with the rotating piece, and the steel wire rope is in a tensioning state; when the moving block is positioned at the upper part of the mounting section, the carrying seat is horizontally arranged, and when the moving block moves downwards, the moving block drives the steel wire rope to move, and the steel wire rope pulls the front end of the carrying seat to gradually swing towards the handle assembly;

The inside of the installation section is provided with a fixed block which is fixedly arranged and is positioned above the moving block; one end of the steel wire rope upwards penetrates through the fixed block from the lower part of the fixed block, upwards penetrates through the fixed block in a roundabout way, downwards extends and fixes the moving block;

the handle assembly comprises an upper rod body and a lower rod body with a plurality of fixing holes, wherein the lower part of the upper rod body is embedded into the lower rod body, and the plurality of fixing holes are arranged at intervals along the longitudinal direction; the telescopic device comprises a locking structure, and the lower part of the upper rod body is fixed by the locking structure; when the locking structure penetrates through the fixing hole, the upper rod body and the lower rod body are relatively fixed, and when the locking structure is positioned in the lower rod body, the upper rod body moves up and down relative to the lower rod body along the longitudinal direction;

the locking structure comprises a transverse spring which is transversely telescopic and a locking piece which is horizontally arranged, one end of the locking piece is fixed with the transverse spring, and the other end of the locking piece is movably arranged; when the locking piece is positioned in the lower rod body, the transverse spring is in a compressed state, and when the fixing hole is opposite to the locking piece, the transverse spring pushes the locking piece to penetrate through the fixing hole;

The telescopic device comprises a traction rope and a button piece arranged at the upper part of the upper rod body, one end of the traction rope is fixed on the button piece, and the other end of the traction rope is fixed on one end of the locking piece; pressing the button piece to enable the haulage rope to pull the locking piece into the lower rod body;

the rear end of the carrying seat is provided with a fixed seat, the fixed seat is provided with a rear end face deviating from the carrying seat, the rear end face of the fixed seat is provided with a first fixed groove recessed towards the carrying seat, and the first fixed groove penetrates through the top of the fixed seat; when the lower rod body is embedded into the first fixing groove, the lower rod body and the carrying seat are vertically and fixedly arranged, and when the lower rod body is separated from the first fixing groove, the lower rod body and the carrying seat are obliquely arranged;

the fixing seat extends upwards to form an extension block, the extension block is provided with a second fixing groove, and the second fixing groove penetrates through the top of the extension block to form a top opening; the lower rod body is provided with a sliding block which moves back and forth relative to the lower rod body, the sliding block is provided with a clamping block, when the lower rod body is embedded into the first fixing groove, the clamping block is embedded into the second fixing groove, and the lower rod body and the carrying seat are vertically and fixedly arranged; the lower rod body is provided with a longitudinal spring and a lifting rope which are longitudinally arranged, the upper end of the longitudinal spring is fixedly arranged, the lower end of the longitudinal spring is fixedly arranged with the sliding block, the lower end of the lifting rope is fixedly arranged with the sliding block, the lifting rope moves upwards to drive the sliding block to move upwards, and the longitudinal spring is in a compressed state; when the clamping block and the second fixing groove are arranged vertically and oppositely, the longitudinal spring drives the clamping block to be embedded into the second fixing groove.

2. The shopping cart as claimed in claim 1, wherein the rear wheel assembly includes a rear axle having a communication hole and two sets of rear wheel sets connected to both ends of the rear axle, the grip assembly includes two lower bars arranged side by side, a lower portion of the lower bars forming the mounting section, both ends of the rear axle respectively connecting the two rear wheel sets through the two mounting sections; the rear wheel set is provided with an embedded section, the embedded section is provided with an embedded groove, the rear shaft is provided with a quick-release spring and a quick-release block, and one end of the quick-release spring is fixedly arranged; when the communication hole and the embedded groove are arranged in a right opposite way, the quick release spring controls the quick release block to penetrate through the communication hole and be embedded into the embedded groove of the rear shaft.

3. The shopping cart as claimed in claim 1, wherein the front wheel assembly and the rear wheel assembly each have a bottom end portion that abuts the ground, the carrier being disposed horizontally when the bottom end portions of the front and rear wheel assemblies are disposed horizontally.