CN218750848U - Folding auxiliary shopping cart - Google Patents

Abstract

The utility model provides a folding auxiliary shopping cart, which relates to the technical field of shopping carts, and comprises a hand push rod, a folding frame, a power-assisted structure, a supporting structure and a stable structure, wherein the folding frame consists of a horizontal cross rod, a vertical rod and a bottom surface bracket, the power-assisted structure comprises a pressure rod, a compression spring, a first stop block and a second stop block, the supporting structure comprises a support rod, a first telescopic rod, a spring rod, a clamping hole and a clamping groove, and the stable structure comprises a second telescopic rod, a movable block and a spring; the utility model discloses handspike, folding frame and folding foot homoenergetic are realized foldingly, and are folding thorough, are convenient for deposit, and helping hand structure, bearing structure and stable structure mutually support, make fold condition and open the state more stable on the one hand, facilitate the use, and on the other hand is folding, open the simple operation.

Description

Folding auxiliary shopping cart

Technical Field

The utility model relates to a shopping cart technical field, concretely relates to folding supplementary shopping cart.

Background

Along with the continuous development of economy in China, the living standard of people is continuously improved, the consumption demand of people on supermarkets is larger and larger, more and more people have private cars, the situation of one-time purchasing in supermarkets is more and more, particularly, preferential activities can be released from the current supermarkets from time to time, most of commodities purchased by people can fill up the supermarket shopping carts, after people purchase the commodities home, the commodities are carried by hands from a garage to the home, labor and time are wasted, and at the moment, one shopping cart is needed to help transportation, and the traditional shopping carts on the market at present have the defects that some shopping carts are large in size, cannot be folded, are inconvenient to store, some shopping carts are small in size, and are limited in carrying.

Chinese patent document 202022210849.5, application number is 202022849.5 discloses a but split folding supplementary shopping cart, it includes the handspike that from the top down is the integral structure, folding frame, X type support and directive wheel, folding frame is by horizontal cross bar, perpendicular montant, montant in the middle of the side, first screw rod and bottom surface support are constituteed, folding frame and handspike hinge, X type support can be around the inside folding amalgamation of axle core, X type support passes through the second screw rod, second screwed pipe and folding frame fixed connection, this supplementary shopping cart is folding that folding structure can realize the shopping cart around adopting, but its stabilizer blade of X shape support can't realize folding, it is not thorough enough to fold, the effect is relatively poor, the influence is deposited, and this supplementary shopping cart needs the location at folding or the in-process of dismouting, need to screw rod is screwed up or unscrewed many times, the operation is comparatively loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a folding auxiliary shopping cart to solve the technical problem that the prior folding shopping cart in the prior art affects the use because of incomplete folding and complex operation; the utility model provides a plurality of technical effects which can be generated by the optimized technical scheme in a plurality of technical schemes; see below for details.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of folding shopping cart of assisting, including handspike, folding frame, helping hand structure, bearing structure and the stable structure that from the top down is the integral structure, wherein: the foldable frame is composed of a horizontal cross rod, a vertical rod and a bottom surface support, the foldable frame is hinged with a hand push rod, the horizontal cross rod is hinged with the vertical rod, a pair of foldable legs are respectively arranged at the front and the back of the lower surface of the bottom surface support, the front pair of foldable legs rotate around an axis together, a rotation track and the axis form a symmetrical included angle in the horizontal plane, the back pair of foldable legs rotate around the other axis together, and the rotation track and the axis form another symmetrical included angle in the horizontal plane; the power assisting structure comprises a pressure lever, a compression spring, a first stop block and a second stop block; the supporting structure comprises a supporting rod, a first telescopic rod, a spring rod, a clamping hole and a clamping groove; the stabilizing structure comprises a second telescopic rod, a movable block and a spring.

Preferably, the first stop block is fixedly installed at two ends of a pressure rod in the boosting structure, the compression spring is fixedly installed in the middle of the boosting structure and can move up and down in the bottom surface support, one end of the compression spring is fixedly installed on the bottom surface support, the second stop block is installed on the bottom surface support, and the first stop block and the second stop block act on the hand push rod during working.

Preferably, one end of a support rod in the support structure is hinged to the folding foot, the rotating track of the support rod is in the same direction as that of the folding foot, the other end of the support rod is connected with the first telescopic rod, two ends of the first telescopic rod can freely extend and retract, two extending ends of the first telescopic rod are inserted into the corresponding clamping grooves and can horizontally move in the clamping grooves, and the clamping grooves are arranged on the bottom surface support; the middle of the first telescopic rod is fixedly provided with the spring rod, the spring rod is provided with the pressing piece, and the clamping hole is fixedly arranged on the bottom surface support.

Preferably, one end of a spring in the stabilizing structure is fixedly connected to the bottom bracket, and the other end of the spring is fixedly connected to the movable block; the two ends of the second telescopic rod are fixedly connected with the pair of folding legs, the two ends of the second telescopic rod can freely stretch, and tension springs are mounted inside the two ends of the second telescopic rod.

Preferably, universal wheels are installed at the bottom of the folding feet.

Preferably, the second stopper is fixedly arranged on the bottom bracket.

Preferably, the second stopper is mounted to the bottom bracket through an elastic buffer; the bottom surface support is provided with a supporting block, and two ends of the elastic buffer piece are respectively connected with the supporting block and the second stop block.

Preferably, a groove matched with the spring rod is formed in the movable block, and a butting part is arranged in the groove; the spring rod can abut against the abutting part along with the movement of the corresponding first telescopic rod, and can move reversely under the action of spring elasticity, so that the end part of the spring rod is clamped into the corresponding clamping hole.

Preferably, the folding auxiliary shopping cart comprises a cable structure disposed at a front end of the floor bracket, the cable structure comprising a rope and a hook, wherein: one end of the rope is connected with the front end of the bottom bracket; the other end of the rope is connected with the hook, the rope can be wound around the horizontal cross rod and is hung on the hand push rod through the hook, and therefore the folding frame is stable to a folding state.

Preferably, the folding shopping cart comprises an auxiliary wheel structure, the auxiliary wheel structure is arranged at the rear end of the bottom surface bracket, the auxiliary wheel structure comprises a moving wheel, a connecting rod, an elastic return piece and a clamping piece, wherein: the moving wheel is rotatably arranged on the connecting rod; the connecting rod is connected with the bottom surface bracket through the elastic return piece; the clamping piece is arranged on the bottom surface support, and a limiting slide way is arranged on the clamping piece; the connecting rod is pulled, the connecting rod slides along the starting end of the limiting slide way and is locked to the ending end, so that the folding auxiliary shopping cart in a folded state can be in contact with the ground when standing.

The utility model provides a pair of folding supplementary shopping cart has following beneficial effect at least:

the folding auxiliary shopping cart comprises a hand push rod, a folding frame, a power assisting structure, a supporting structure and a stabilizing mechanism, and when the hand push rod is used, the hand push rod is supported to facilitate the movement of the folding auxiliary shopping cart.

The foldable frame is composed of a horizontal cross rod, a vertical rod and a bottom surface support, the foldable frame is hinged with the hand push rod, the horizontal cross rod is hinged with the vertical rod, a pair of foldable legs are respectively installed at the front and the back of the lower surface of the bottom surface support, the front pair of foldable legs rotate around an axis together, a symmetrical included angle is formed between the rotation track and the axis at the horizontal plane, the rear pair of foldable legs rotate around another axis together, another symmetrical included angle is formed between the rotation track and the axis at the horizontal plane, the foldable frame and the foldable legs can be folded completely, and the foldable frame and the foldable legs are convenient to store.

The power assisting structure comprises a pressing rod, a compression spring, a first stop block and a second stop block, the power assisting structure is used for limiting the hand push rod, the limit is removed when the hand push rod is folded, the folding operation is convenient and fast, the limit effect is obvious when the hand push rod is used, and the auxiliary shopping cart is stable in opening state.

The supporting structure comprises a supporting rod, a first telescopic rod, a spring rod, a clamping hole and a clamping groove, and the supporting structure firmly supports the folding foot.

Stable structure includes second telescopic link, movable block and spring, and stable structure has supplementary screens effect on the one hand, and cooperation bearing structure can effectively inject the state of folding foot, makes it open and fold condition is more stable, and on the other hand can reduce the rigid collision that produces in the motion process, improves and uses the travelling comfort.

The utility model discloses a helping hand structure, bearing structure and stable structure mutually support, not only make handspike, folding frame and folding foot fold more thoroughly, are convenient for deposit, fold moreover, open the simple operation, fold simultaneously and open the stable, convenient to use of state.

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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a schematic view of the present invention in a folded state;

fig. 4 is a schematic view of another view angle structure of the folded state of the present invention;

FIG. 5 is an enlarged view of part A of the present invention;

fig. 6 is a schematic view of the first stopper and the second stopper of the present invention acting on the handle bar, the handle bar being in an unfolded state, and the connecting rod being located at the starting end of the limiting guide groove;

FIG. 7 is an enlarged view of the section B of the present invention;

FIG. 8 is a schematic view of the first and second stoppers of the present invention not acting on the handle bar, the handle bar being in a foldable state, and the connecting rod being located at the starting end of the position-limiting guide groove;

FIG. 9 is an enlarged view of the section C of the present invention;

FIG. 10 is an enlarged view of section D of the present invention;

fig. 11 is a schematic structural view of the first telescopic rod, the spring rod, the movable block and the spring of the present invention;

fig. 12 is an exploded view of the spring rod of the present invention;

fig. 13 is a schematic view of a second telescopic rod structure of the present invention;

fig. 14 is a schematic structural view of another embodiment of the present invention;

fig. 15 is an enlarged view of part E of the present invention.

Reference numerals

1. A handspike; 2. folding the frame; 21. a horizontal cross bar; 22. a vertical stem; 23. a bottom bracket; 231. a containing groove; 232. fixing grooves; 233. a hanging part; 3. folding the legs; 4. a power-assisted structure; 41. a pressure lever; 42. a compression spring; 43. a first stopper; 44. a second stopper; 45. an elastic buffer member; 46. a support block; 5. a support structure; 51. a support bar; 52. a first telescopic rod; 53. a spring lever; 531. a rod body; 5311. a limiting guide groove; 532. a clamping and connecting rod; 533. a pressing member; 534. a clamping spring; 54. a clamping hole; 55. a card slot; 6. stabilizing the structure; 61. a second telescopic rod; 611. a second outer pole; 612. a second inner bar; 613. a tension spring; 614. a retractable mounting head; 62. a movable block; 621. a groove; 622. an abutting portion; 63. a spring; 64. a fixed mount; 7. a universal wheel; 8. a cable structure; 81. a rope; 82. hooking; 9. an auxiliary wheel structure; 91. a moving wheel; 92. a connecting rod; 93. an elastic return member; 94. a clamping part; 941. and a limiting slide way.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

the utility model provides a folding shopping cart of assisting, as shown in figure 1 and figure 2, folding shopping cart of assisting includes handspike 1, folding frame 2, helping hand structure 4, bearing structure 5 and stable structure 6 that from the top down is the integral structure.

Folding frame 2 comprises horizontal cross bar 21, perpendicular montant 22 and bottom surface support 23, and horizontal cross bar 21 level sets up, and it is including the first district section that is located the locomotive position to and symmetrical connection to the second district section at first district section both ends, first district section and two the second district section is isosceles trapezoid shape, the tip and the hinge of handspike 1 of second district section, the shape and the 21 looks adaptations of horizontal cross bar of bottom surface support 23, the quantity of horizontal cross bar 21 sets up to a plurality ofly, and level setting in proper order, the quantity of perpendicular montant 22 set up to a plurality ofly, and it is located the position of first district section, all horizontal cross bars 21 all are articulated with perpendicular montant 22.

A pair of folding legs 3 are respectively arranged at the front and the back under the bottom surface bracket 23, the front folding legs 3 rotate around an axis together, a symmetrical included angle is formed between the rotating track and the axis on the horizontal plane, the back folding legs 3 rotate around the other axis together, and another symmetrical included angle is formed between the rotating track and the axis on the horizontal plane;

as shown in fig. 3 and 4, when folded, the folding frame 2 is released from the limit, the folding auxiliary shopping cart is pushed forward and backward to realize up-and-down folding, and the front and rear folding legs 3 are folded forward and backward, so that the folding auxiliary shopping cart is completely folded and is convenient to store.

As an alternative embodiment, as shown in fig. 6, the assistive structure 4 includes a pressing rod 41, a compression spring 42, a first stopper 43, and a second stopper 44, and the assistive structure 4 is used for limiting the position of the handle bar 1.

The pressure lever 41 in the boosting structure 4 comprises a middle pressing section and L-shaped connecting sections symmetrically arranged at two ends of the middle pressing section, and a first stop block 43 is fixedly arranged at the end part of the L-shaped connecting section far away from the middle pressing section.

Fixed mounting has compression spring 42 between middle part pressing section and the bottom surface support 23, and compression spring 42's both ends are connected respectively middle part pressing section and bottom surface support 23, and compression spring 42's quantity sets up to a plurality ofly, corresponds on the bottom surface support 23 the position of L shape linkage segment is provided with storage tank 231, L shape linkage segment sets up in storage tank 231 and slides from top to bottom along storage tank 231.

The second stopper 44 is fixedly mounted on the bottom bracket 23, and the first stopper 43 and the second stopper 44 act on the handle bar 1 when operating.

As shown in fig. 6 and 7, when the folding shopping cart is in the unfolded state, in a normal state, the pressing rod 41 is at the high position under the action of the compression spring 42, at this time, the L-shaped connecting section is located at the high position in the accommodating groove 231, the first stopper 43 and the second stopper 44 are arranged opposite to each other and clamped to the front side and the rear side of the hand push rod 1, so that the relative position of the hand push rod 1 is effectively limited, and the unfolded state of the hand push rod 1 and the folding frame 2 is more stable.

As shown in fig. 8 and 9, when the folding assistant shopping cart is folded, the pressing rod 41 is pressed against the elastic force of the compression spring 42, so that the L-shaped connecting section is located at the lower position in the accommodating groove 231, the first stopper 43 is located at the position below the rear side of the push rod 1, the rear limiting function of the push rod 1 is released, at this time, the push rod 1 is pushed forward, so that the folding of the push rod 1 and the folding frame 2 can be realized, and then the pressing rod 41 is released, and the pressing rod 41 is restored to the normal position under the action of the compression spring 42, so that the operation is very convenient.

As an alternative embodiment, as shown in fig. 2, 11 and 12, the supporting structure 5 includes a supporting rod 51, a first telescopic rod 52, a spring rod 53, a clamping hole 54 and a clamping groove 55.

One end of a support rod 51 in the support structure 5 is hinged with the corresponding folding foot 3, the rotating track of the support rod is in the same direction as that of the folding foot 3, and the other end of the support rod is connected with a first telescopic rod 52.

First telescopic link 52 includes first outer pole and first interior pole, two first interior pole is followed respectively the terminal surface of first outer pole slides and inserts establish extremely in the first outer pole, the tip of first interior pole forms the flexible end of first telescopic link 52, two flexible end is inserted and is established to corresponding draw-in groove 55 in to can be in draw-in groove 55 horizontal migration, draw-in groove 55 sets up on bottom surface support 23.

Because bottom surface support 23 is isosceles trapezoid, adopt the first telescopic link 52 adaptation of telescopic in bottom surface support 23, it mutually supports with bracing piece 51, under the prerequisite of guaranteeing structural firmness, can realize folding 3 folding of foot.

The spring rod 53 is fixedly installed at the front and rear sides of the middle of the first telescopic rod 52, the spring rod 53 moves synchronously with the first telescopic rod 52, and the pressing member 533 is installed on the spring rod 53.

As shown in fig. 12, the spring rod 53 includes a rod body 531, a clamping spring 534 and two clamping rods 532, the rod body 531 is axially provided with an installation cavity in a penetrating manner, the clamping spring 534 is arranged in the installation cavity, the insertion end of the clamping rod 532 is slidably inserted into the installation cavity, a limiting guide groove 5311 is arranged on the rod wall of the rod body 531 and communicated with the installation cavity, and the pressing member 533 penetrates through the limiting guide groove 5311 to be connected with the insertion end.

The bottom of the bottom bracket 23 is provided with a clamping plate group, the clamping plate group comprises clamping plates which are oppositely arranged, a clamping hole 54 is formed in each clamping plate, and the clamping hole 54 is matched with the clamping rod 532.

In the actual use process, the two pressing members 533 are pressed, the two pressing members 533 move towards each other, and the clamping spring 534 is compressed, at this time, the first telescopic rod 52 is pushed, so that the spring rod 53 moves to between the two clamping plates, the pressing members 533 are released, and the clamping rod 532 is inserted into the clamping hole 54 under the action of the clamping spring 534.

The front pair of folding legs 3 is correspondingly provided with a first telescopic rod 52 and two spring rods 53, and the bottom side of the corresponding bottom bracket 23 is provided with two clamping plate sets which respectively correspond to the folding position and the opening position of the front pair of folding legs 3.

The rear pair of folding legs 3 are correspondingly provided with a first telescopic rod 52 and two spring rods 53, and the bottom side of the corresponding bottom bracket 23 is provided with two clamping plate groups which respectively correspond to the folding position and the opening position of the rear pair of folding legs 3.

So set up, supplementary screens effect is showing, and folding foot 3 open mode and fold condition are stable.

As an alternative embodiment, as shown in fig. 2 and 11, the stabilizing structure 6 comprises a second telescopic rod 61, a movable block 62 and a spring 63.

The bottom of bottom surface support 23 is provided with mount 64, and mount 64 and movable block 62 are connected respectively to the both ends of spring 63, are provided with the recess 621 with spring lever 53 looks adaptation on the movable block 62, and recess 621 has the positioning action on the one hand, and on the other hand it sets up on movable block 62, can save space, makes the structure compacter.

An abutting portion 622 is arranged in the groove 621, the abutting portion 622 is provided as an abutting block, and the abutting portion 622 can abut against the outer wall of the spring rod 53.

The bottom of the bottom bracket 23 is provided with a movable block 62, a spring 63 and a fixed frame 64 corresponding to the clamping plate group.

Folding or open folding foot 3 time, promote folding foot 3, spring lever 53 is along with corresponding first telescopic link 52 synchronous motion, when spring lever 53 passes the clip group, can offset with butt portion 622, at this moment, unclamp folding foot 3, under the effect of spring 63, movable block 62 promotes spring lever 53 antiport, makes clip pole 532 and calorie hole 54 automatic alignment and grafting.

The arrangement of the movable block 62 and the spring 63 provides an interference magnitude for the movement of the spring rod 53, has the function of correcting the position and aligning, can realize the insertion of the clamping rod 532 and the clamping hole 54 without the need of intentional alignment in the process of actual use, and is very convenient and fast to operate.

As shown in fig. 2, two ends of the second telescopic rod 61 are fixedly connected with a pair of folding legs 3, and two ends of the second telescopic rod 61 can freely extend and retract.

As shown in fig. 13, the second telescopic rod 61 includes a second outer rod 611 and a second inner rod 612, the two second inner rods 612 are respectively inserted into the second outer rod 611 along the end surface of the second outer rod 611 in a sliding manner, and the end of the second inner rod 612 forms a telescopic end of the second telescopic rod 61.

The telescopic end of the second telescopic rod 61 is provided with a telescopic mounting head 614, a buffer cavity is arranged in the second inner rod 612, the connecting end of the telescopic mounting head 614 is fixedly connected with the corresponding folding foot 3, the sliding end of the telescopic mounting head 614 is slidably inserted into the buffer cavity along the end of the second inner rod 612, the sliding end of the telescopic mounting head 614 is provided with an annular flange, the annular flange is matched with the size of the buffer cavity, a tension spring 613 is arranged in the buffer cavity, the tension spring 613 is sleeved on the telescopic mounting head 614, and two ends of the tension spring 613 are respectively abutted against the annular flange and the inner wall of the end of the second inner rod 612.

Therefore, the telescopic mounting head 614 can achieve elastic expansion, so that the telescopic mounting head has a buffering effect and is more comfortable to use, and in the operation process of opening the folding foot 3 by holding the second telescopic rod 61 by hand, the telescopic mounting head 614 can provide an interference magnitude and has an auxiliary clamping effect.

As an alternative embodiment, as shown in figure 1, universal wheels 7 are mounted at the bottom of the folding legs 3 to facilitate the movement of the folding auxiliary shopping cart.

As an alternative embodiment, as shown in fig. 1 to 4, the folding auxiliary shopping cart comprises a cable structure 8, the cable structure 8 is arranged at the front end of the bottom bracket 23, the cable structure 8 comprises a rope 81 and a hook 82, the rope 81 is arranged as an elastic pull rope, and the front end of the bottom bracket 23 is provided with a fixing groove 232.

One end of the rope 81 is fixedly connected to the fixing groove 232, the other end of the rope 81 is connected to the hook 82, and the handspike 1 comprises two vertical rods and a holding rod horizontally connected between the two vertical rods.

The fixing groove 232 is a groove opened at a bottom side of the front end of the bottom bracket 23, and the rope 81 may be drawn out from the front and rear notches of the fixing groove 232.

The bottom side of the bottom bracket 23 is provided with a hanging part 233, and the hanging part 233 is provided with a hanging lug to provide a hanging hook position for the hanging hook 82.

When the novel clothes hanger is not used, the rope 81 is led out from the rear notch of the fixing groove 232 and is hung on the hanging portion 233 through the hook 82, and the rope 81 and the hook 82 are located below the bottom support 23.

The rope 81 can also be directly wound and hooked to the folding frame 2 by means of the hook 82.

During the use, folding auxiliary shopping cart is in fold condition, and at this moment, taut rope 81 draws forth rope 81 by the preceding notch of fixed slot 232, makes it walk around horizontal cross bar 21 to hang through couple 82 and establish on the holding rod, folding frame 2 is in fold condition stably this moment.

The arrangement of the guy cable structure 8 can firmly lock the folding frame 2 to the folding state.

As an alternative embodiment, as shown in fig. 4, 5, 8 and 10, the folding auxiliary shopping cart includes an auxiliary wheel structure 9, and the auxiliary wheel structure 9 is provided at the rear end of the bottom surface bracket 23.

The auxiliary wheel structure 9 includes a moving wheel 91, a link 92, an elastic return member 93 and a locking member 94, the elastic return member 93 is provided as a return spring, and the link 92, the elastic return member 93 and the locking member 94 are all located at the lower side of the rear end of the bottom bracket 23.

The quantity of removing wheel 91 sets up to two, and two remove the rotatable setting of wheel 91 symmetry on connecting rod 92, and connecting rod 92 level sets up, and links to each other with bottom surface support 23 through elasticity return piece 93, and the quantity of screens piece 94 sets up to a plurality ofly, link up on the screens piece 94 and be provided with spacing slide 941, and the tip of connecting rod 92 passes spacing slide 941.

In a normal state, as shown in fig. 10, the link 92 and the moving wheel 91 are located at the initial end of the limiting slideway 941 under the action of the elastic return piece 93, and at this time, they are located below the rear end of the bottom bracket 23.

During the use, as shown in fig. 5, at first folding frame 2 and folding foot 3 are folded to fold condition, and through the firm folding frame 2 of cable structure 8, secondly, overcome elasticity pulling connecting rod 92 that elasticity returned piece 93, and slide connecting rod 92 to the end along spacing slide 941, at this moment, elasticity returns the taut connecting rod 92 of piece 93, make connecting rod 92 support and lean on the end to spacing slide 941, the position locking, later will be in fold condition folding supplementary shopping cart rear end is stood down, it can contact ground to remove the wheel, user's push-and-pull handspike, can make the folding supplementary shopping cart that is in fold condition remove, the laborsaving convenience of operation.

Example 2:

example 2 differs from example 1 in that:

as shown in fig. 11 and 12, the second stopper 44 is attached to the bottom surface bracket 23 via an elastic buffer 45.

Elastic buffer 45 has the cushioning effect on the one hand, can effectively reduce the damage that second stopper 44 and handspike 1 brought because of hard collision, and when using more comfortablely, life is more permanent, and on the other hand has the cushioning effect, provides an interference magnitude for handspike 1, and the depression bar 41 of being convenient for presses the operation, makes things convenient for helping hand structure 4 to relieve limiting displacement, further convenient operation to handspike 1.

As an alternative embodiment, a supporting block 46 is provided on the bottom bracket 23, and both ends of the elastic buffer 45 are connected to the supporting block 46 and the second stopper 44, respectively.

Alternatively, as shown in fig. 12, the supporting block 46 is configured to be L-shaped, and includes a vertical limiting block and a horizontal supporting block connected to each other, the second stopper 44 is slidably disposed on the horizontal supporting block, and the elastic buffer 45 is configured to be a buffer spring, and two ends of the elastic buffer are respectively connected to the vertical limiting block and the second stopper 44.

Thus, the second stopper 44 is stably supported while the cushioning effect of the second stopper 44 is ensured.

In the description of the present application, it is to be understood that the terms "front", "back", "upper", "lower", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are used only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a folding shopping cart of assisting which characterized in that is integrated structure's handspike, folding frame, helping hand structure, bearing structure and stable structure from the top down, wherein:

the foldable frame is composed of a horizontal cross rod, a vertical rod and a bottom surface support, the foldable frame is hinged with a hand push rod, the horizontal cross rod is hinged with the vertical rod, a pair of foldable legs are respectively arranged at the front and the back of the lower surface of the bottom surface support, the front pair of foldable legs rotate around an axis together, a rotation track and the axis form a symmetrical included angle in the horizontal plane, the back pair of foldable legs rotate around the other axis together, and the rotation track and the axis form another symmetrical included angle in the horizontal plane;

the power assisting structure comprises a pressure lever, a compression spring, a first stop block and a second stop block;

the supporting structure comprises a supporting rod, a first telescopic rod, a spring rod, a clamping hole and a clamping groove;

the stabilizing structure comprises a second telescopic rod, a movable block and a spring.

2. The folding shopping cart as recited in claim 1, wherein said first stop is fixedly mounted at two ends of a pressing bar of said booster structure, said compression spring is fixedly mounted at a middle portion thereof and is capable of moving up and down in said bottom bracket, one end of said compression spring is fixedly mounted on said bottom bracket, said second stop is mounted on said bottom bracket, and said first stop and said second stop act on said push bar during operation.

3. The folding assisted shopping cart of claim 1, wherein one end of a support rod in the support structure is hinged to the folding leg, the rotation track of the support rod is in the same direction as the rotation track of the folding leg, the other end of the support rod is connected to the first telescopic rod, two ends of the first telescopic rod can freely extend and retract, two extending ends of the first telescopic rod are inserted into the corresponding clamping grooves and can horizontally move in the clamping grooves, and the clamping grooves are arranged on the bottom surface support;

the middle of the first telescopic rod is fixedly provided with the spring rod, the spring rod is provided with a pressing piece, and the clamping hole is fixedly arranged on the bottom surface support.

4. The folding assisted shopping cart of claim 3, wherein the spring of the stabilizing structure has one end fixedly connected to the floor bracket and the other end fixedly connected to the movable block;

the two ends of the second telescopic rod are fixedly connected with the pair of folding legs, the two ends of the second telescopic rod can freely stretch, and tension springs are mounted inside the two ends of the second telescopic rod.

5. The folding assisted shopping cart of claim 1, wherein universal wheels are mounted to the bottom of the folding legs.

6. The folding shopping cart as recited in claim 2, wherein said second stop is fixedly disposed on said floor bracket.

7. The folding assisted shopping cart of claim 2, wherein the second stop is mounted to the bottom bracket by an elastomeric bumper;

the bottom surface support is provided with a supporting block, and two ends of the elastic buffer piece are respectively connected with the supporting block and the second stop block.

8. The folding assisted shopping cart of claim 4, wherein the movable block is provided with a groove adapted to the spring bar, and wherein an abutting portion is provided in the groove;

the spring rod can move along with the corresponding first telescopic rod and can abut against the abutting part, and the spring rod can move reversely under the action of spring force, so that the end part of the spring rod is clamped into the corresponding clamping hole.

9. The folding assisted shopping cart of claim 1, comprising a cable structure disposed at a front end of the floor bracket, the cable structure comprising a cord and a hook, wherein:

one end of the rope is connected with the front end of the bottom bracket;

the other end of the rope is connected with the hook, and the rope can bypass the horizontal cross rod and is hung on the hand push rod through the hook so as to stabilize the folding frame to a folding state.

10. The folding assisted shopping cart of claim 1, comprising an auxiliary wheel structure disposed at a rear end of the floor support, the auxiliary wheel structure comprising a moving wheel, a linkage, an elastic return member, and a detent member, wherein:

the moving wheel is rotatably arranged on the connecting rod;

the connecting rod is connected with the bottom surface bracket through the elastic return piece;

the clamping piece is arranged on the bottom surface support, and a limiting slide way is arranged on the clamping piece;

the connecting rod is pulled, the connecting rod is followed the initiating terminal of spacing slide slides and locks to terminating end to the messenger is in fold condition folding auxiliary shopping cart is when standing, it can contact with ground to remove the wheel.

Images