CN218505900U - Household folding cart - Google Patents

Abstract

A household folding cart comprises a folding cart body and a plurality of wheel assemblies, wherein the folding cart body comprises a plurality of vertical frames and a bottom frame connected among all the vertical frames, the wheel assemblies are installed on the lower portion of each vertical frame, the bottom frame comprises a center seat and a plurality of groups of bottom connecting rod sets, the center seat is formed by an upper bottom plate and a lower bottom plate and located in the middle of the bottom frame, each group of bottom connecting rod sets is connected between the center seat and the corresponding vertical frame respectively, each group of bottom connecting rod sets comprises an inner upper bottom rod, an inner lower bottom rod, an outer upper bottom rod and an outer lower bottom rod, one end portion of the inner upper bottom rod is connected with the upper bottom plate through a pivot, one end portion of the inner lower bottom rod is connected with the lower bottom plate through a pivot, one end portion of the outer lower bottom rod and one end portion of the outer upper bottom rod are connected with the vertical frames through a pivot, the other end portion of the outer bottom rod is connected with the vertical frames through a pivot or can be arranged in a sliding and rotating mode, and a mop assembly and/or a push handle assembly are arranged on the folding cart body. The upper chassis and the lower chassis of the central seat are controlled to be far away from each other up and down or close to each other up and down, so that the vertical frames are driven to be synchronously folded or unfolded, and the folding or unfolding of the folding vehicle body is realized.

Description

Household folding cart

Technical Field

The utility model belongs to the field of furniture, concretely relates to domestic folding shallow.

Background

Modern people have ever-increasing living standard, but living pressure and working pressure are increasing. More and more people develop outdoor activities with family and friends on weekends, relax mood, and enjoy charm and sunrise sunshine barbecue games. The folding cart brings convenience to the carrying of outdoor appliance materials, and the outdoor life is more beautiful and enjoyable.

The foldable trailer frame disclosed in patent publication No. CN 207416898U comprises a foldable support composed of struts, wherein rollers are arranged at the rear bottom of the foldable support, and brake wheels are arranged at the front bottom of the foldable support; the front end face of the folding support is hinged with a handle, and the handle is matched with a clamping sleeve on the folding support in a clamping mode.

Still like the open-air folding camper that patent publication No. CN216401468U disclosed, including draw bar device, frame and universal wheel, the frame is including supporting the montant, control folding side fence, the folding side fence in front and back, bottom I shape subassembly, first connecting piece, second connecting piece and third connecting piece, draw bar device is connected with supporting the montant, the universal wheel sets up the bottom at supporting the montant, first connecting piece, second connecting piece and third connecting piece cup joint in proper order in the upper and middle lower part of supporting the montant, control folding side fence and the upper and lower tip of folding side fence in front and back and all articulate on first connecting piece and second connecting piece, the tip of bottom I shape subassembly articulates on the third connecting piece, this car can fold and deposit.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a domestic folding shallow.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a domestic folding shallow, includes folding automobile body, a plurality of wheel subassembly that has expansion position and packing up the position, folding automobile body includes a plurality of grudging posts, connects in all chassis between the grudging post, every install the wheel subassembly of grudging post lower part, the chassis includes the center seat that the middle part comprises last chassis that can be close to from top to bottom or lower chassis far away from, multiunit bottom link group that constitutes by many sill bars, every group bottom link group connect respectively between center seat and corresponding the grudging post, every group bottom link group includes interior upper sill bar, interior lower sill bar, outer upper sill bar and outer lower sill bar, interior upper sill bar tip with upper chassis pivot connection, interior lower sill bar tip with lower chassis pivot connection, one of an end of outer lower sill bar and an end of outer upper sill bar with the grudging post pivot connection, another with the grudging post pivot connection or slip can set up with the rotation, be provided with mop subassembly and/or push handle subassembly on the folding automobile body.

In some embodiments, one end of the outer lower bottom rod is pivotally connected to the lower portion of the vertical frame, when the foldable vehicle body is folded, the upper chassis is upwardly away from the lower chassis, and all the bottom connecting rod sets are transversely contracted and upwardly expanded to synchronously drive the vertical frames to approach the central seat.

In some embodiments, each of the bottom linkage sets, the inner upper bottom bar intersects with and is pivotally connected to the inner lower bottom bar at an intersection, the outer upper bottom bar intersects with and is pivotally connected to the outer lower bottom bar at an intersection, the other end of the inner upper bottom bar is pivotally connected to the other end of the outer upper bottom bar, the other end of the inner lower bottom bar is pivotally connected to the other end of the outer lower bottom bar, one end of the outer lower bottom bar is pivotally connected to the lower portion of the upright frame, one end of the outer upper bottom bar is slidably and rotatably disposed with respect to the upright frame, or,

the inner upper bottom rod is crossed with the inner lower bottom rod and is pivoted at the cross, the other end of the inner upper bottom rod is pivoted with one end of a bottom middle connecting rod, the bottom middle connecting rod is crossed with the outer lower bottom rod and is pivoted at the cross, the other end of the bottom middle connecting rod is pivoted with the other end of the outer upper bottom rod, and one end of the outer upper bottom rod and one end of the outer lower bottom rod are respectively pivoted with the vertical frame one above the other.

In some embodiments, when the foldable wagon body is in the unfolded position, a space for mounting a flexible pocket for storing articles is formed above the bottom frame.

In some embodiments, the foldable body further comprises a plurality of stroller sides respectively connected between two adjacent uprights, and when the foldable body is in the unfolded position, all of the stroller sides are arranged around the space.

In some embodiments, each of the stroller side walls includes an upper left side bar and a lower left side bar intersecting at a left end side and a middle portion and pivotally connected at an intersection, one of the upper left side bar and the lower left side bar being pivotally connected to the corresponding upright and the other being pivotally connected to the corresponding upright in both a vertical sliding and a rotational manner, and an upper right side bar and a lower right side bar intersecting at a right end side and a middle portion and pivotally connected at an intersection, one of the upper right side bar and the lower right side bar being pivotally connected to the corresponding upright and the other being pivotally connected to the corresponding upright in both a vertical sliding and a rotational manner.

In some embodiments, the upper end portion of the upper left rod and the upper end portion of the upper right rod are pivotally connected to the upper portions of the stands corresponding to the left and right sides, respectively, and the lower end portions of the lower left rod and the lower right rod are pivotally connected to lift sliders slidably provided on the stands corresponding to the left and right sides, respectively.

In some embodiments, each said stroller side wall has said upper left side rod lower end pivotally connected to said upper right side rod lower end and said lower left side rod upper end pivotally connected to said lower right side rod upper end, or further comprises at least one X-shaped unit, each said X-shaped unit being intersected by two rod members at a middle portion and pivotally connected at an intersection, at least one said X-shaped unit being foldably connected between said upper left side rod lower end, said lower left side rod upper end, said lower right side rod upper end and said upper right side rod lower end.

In some embodiments, each of the stands includes an inner vertical rod located at an inner side, an outer vertical rod located at an outer side, an upper base fixedly connected between an upper end of the inner vertical rod and an upper end of the outer vertical rod, and a wheel base fixedly connected between a lower end of the inner vertical rod and a lower end of the outer vertical rod, each of the cart side walls is respectively connected between two adjacent outer vertical rods, each of the bottom link groups is respectively connected between the center base and the corresponding inner vertical rod, and the wheel assembly is detachably connected with the wheel base.

The mop component and the push handle component are arranged between two adjacent vertical frames at two opposite sides of the folding trolley body.

The scope of the present invention is not limited to the technical solutions formed by specific combinations of the above technical features, and other technical solutions formed by arbitrary combinations of the above technical features or equivalent features should be also covered. For example, the above features and the technical features (but not limited to) having similar functions disclosed in this application are replaced with each other to form the technical solution.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model discloses domestic folding shallow is a new folding principle shallow, last chassis through control center seat is kept away from or is close to from top to bottom with lower chassis from top to bottom mutually, it draws in or launches in step to drive each grudging post, realize that folding automobile body packs up or expandes, when keeping away from the operation from top to bottom on last chassis and lower chassis, it draws close to center seat in step to drive each grudging post through each group's end connecting rod group interlock, thereby draw close relatively between each adjacent grudging post, make the automobile body pack up, and when going up the chassis and drawing close down the chassis downwards, each group's end connecting rod group stretches out and drives each grudging post synchronous relative center seat and keeps away from, thereby also keep away from relatively between each adjacent grudging post, make the automobile body pack up.

Drawings

FIG. 1 is a perspective view of a folded vehicle body in an unfolded position;

FIG. 2 is a schematic view of the side walls of the carts in an unfolded position;

FIG. 3 is a schematic view of the side wall of each cart in the process of folding;

FIG. 4 is a schematic view of the chassis in the unfolded position (embodiment one of the chassis);

FIG. 5 is a schematic view of the chassis in the unfolded position (second embodiment of the chassis);

FIG. 6 is a schematic view of the side wall of the cart in the stowed position;

FIG. 7 is a schematic view of the chassis in the stowed position (first embodiment of the chassis);

fig. 8 is a schematic view of the state of the chassis in the stowed position (chassis embodiment two);

FIG. 9 is a schematic view showing a state of the push handle assembly in the unfolded position (first embodiment of the push handle assembly);

FIG. 10 is a schematic view of the push handle assembly in the stowed position (push handle assembly embodiment one);

FIG. 11 is an exploded view of the locking mechanism at the fold of the folding push bar (push bar assembly embodiment one);

FIG. 12 is an exploded view of the locking mechanism at the folding position of the push rod and the stand;

FIG. 13 is a schematic view showing a state of a push handle assembly in the deployed position (second embodiment of the push handle assembly);

FIG. 14 is a schematic view of the state of the push handle assembly in the stowed position (push handle assembly embodiment II);

FIG. 15 is a schematic cross-sectional view of the wheel assembly mounted on the stand wheel base;

FIG. 16 is a cross-sectional view of the wheel assembly shown removed from the pedestal wheel base;

wherein 1, erecting a frame; 11. a vertical inner rod; 12. a vertical outer rod; 13. an upper base; 14. a wheel base; 15. a lifting slider; 2. a push handle assembly; 21. a push rod; 22. folding the transverse push handle; 3. a mop assembly; 4. a cart side wall; 41. a left upper side lever; 42. a left lower side lever; 43. a right upper side rod; 44. a right lower side lever; 45. an X word unit; 5. a chassis; 51. an upper chassis; 52. a lower chassis; 53. a bottom linkage; a. an inner upper bottom bar; b. an inner lower bottom bar; c. an outer upper bottom bar; d. an outer lower bottom bar; f. a bottom intermediate link; 54. a sliding sleeve; 6. a wheel assembly.

Detailed Description

The first embodiment of the household folding cart is shown in fig. 1-4, 6-7 and 9-16, and comprises a folding cart body in an unfolding position and a folding position, wherein the folding cart body comprises four vertical frames 1, four cart side walls 4 and a bottom frame 5 connected between the four vertical frames 1, and the lower parts of the four vertical frames 1 are respectively connected with a wheel assembly 6 capable of universally rotating.

As shown in fig. 1, each stand 1 includes an inner vertical rod 11 located at the inner side, an outer vertical rod 12 located at the outer side, an upper base 13 fixedly connected between the upper end of the inner vertical rod 11 and the upper end of the outer vertical rod 12, and a wheel base 14 fixedly connected between the lower end of the inner vertical rod 11 and the lower end of the outer vertical rod 12, and each cart side wall 4 is respectively connected between two adjacent outer vertical rods 12. As shown in fig. 15 and 16, the wheel joint at the upper end of the wheel assembly 6 and the joint jack of the wheel base 14 can be arranged in a pluggable manner and locked through a slide fastener, so that the wheel assembly can be detachably connected.

As shown in fig. 1-3 and 6, the detailed structure of the cart side wall 4 is as follows:

firstly, when the side wall 4 of the cart is faced by any person, the side wall 4 of the cart comprises four directions of left, right, up and down, that is, the following terms of the left, right, up and down orientation of the stroller side wall 4 are used as references assuming a state in which a human body faces the side wall of the stroller. In this embodiment, the cart is rectangular in the unfolded position, wherein the side walls of the two opposite carts are short, and the side walls of the other two opposite carts are long.

The cart side wall 4 comprises a left upper rod 41 and a left lower rod 42 which are pivoted at the middle of the left end side in a crossed manner, and a right upper rod 43 and a right lower rod 44 which are pivoted at the middle of the right end side in a crossed manner, so that two groups of X-shaped units are formed. The upper left bar 41 is pivoted to the respective upper base 13, the lower left bar 42 is pivoted to the lifting slider 15 slidingly housed on the corresponding vertical external bar 12, and likewise the upper right bar 43 is pivoted to the respective upper base 13 and the lower right bar 44 is pivoted to the lifting slider 15 slidingly housed on the corresponding vertical external bar 12.

The lower end of the left upper side rod 41 is directly pivoted with the lower end of the right upper side rod 43, and the upper end of the left lower side rod 42 is directly pivoted with the upper end of the right lower side rod 44.

Compared with the short cart side wall 4, the cart side wall 4 with longer transverse length has a group of X-shaped units 45 in the middle, the X-shaped units 45 are formed by two rod pieces in a cross pivot mode, and four end portions are pivoted between the lower end portion of the left upper side rod 41, the upper end portion of the left lower side rod 42, the upper end portion of the right lower side rod 44 and the lower end portion of the right upper side rod 43.

As shown in fig. 1, 4 and 7, the bottom frame 5 includes a central base located at the middle, and four sets of bottom linkage 53 respectively connected between the central base and the corresponding vertical rod 11 of the vertical frame 1. The center base comprises an upper chassis 51 and a lower chassis 52 which can be close to or far away from each other up and down, and the bottom linkage 53 is composed of a plurality of bottom rods.

The detailed structure of the bottom linkage 53 is as follows:

each bottom connecting rod group 53 comprises an inner upper bottom rod a, an inner lower bottom rod b, an outer upper bottom rod c and an outer lower bottom rod d, one end of the inner upper bottom rod a is pivotally connected with the upper chassis 51, one end of the inner lower bottom rod b is pivotally connected with the lower chassis 52, one end of the outer lower bottom rod d is pivotally connected with the lower end of the vertical inner rod 11 of the stand 1, one end of the outer upper bottom rod c is pivotally connected with a sliding sleeve 54, and the sliding sleeve 54 can be slidably sleeved on the vertical inner rod 11. The inner upper bottom rod a is crossed with the inner lower bottom rod b and is pivoted at the cross, the outer upper bottom rod c is crossed with the outer lower bottom rod d and is pivoted at the cross, the other end of the inner upper bottom rod a is pivoted with the other end of the outer upper bottom rod c, and the other end of the inner lower bottom rod b is pivoted with the other end of the outer lower bottom rod d.

As shown in fig. 4, when the bottom frame 5 is transversely unfolded, the height of the bottom frame 5 is lowered to push the stand frames 1 outwards, and when the bottom frame 5 is transversely folded, the height of the bottom frame 5 is raised to pull the stand frames 1 to be close to the center seat.

As shown in fig. 3, 4, 6 and 7, the details are as follows: when the folding vehicle body is folded, the upper chassis 51 is separated upwards relative to the lower chassis 52, all the bottom connecting rod groups 53 are transversely contracted and are expanded in height upwards to synchronously drive all the stand frames 1 to approach to the central seat, the distance between the adjacent stand frames 1 is shortened, all the cart side walls 4 are respectively transversely folded and are expanded in height downwards, namely, the lower end of the left lower side rod 42 is separated from the upper end of the left upper side rod 41, and the lower end of the right lower side rod 44 is separated from the upper end of the right upper side rod 43.

As shown in fig. 1, when the foldable car body is unfolded, the upper chassis 51 is moved downward to close the lower chassis 52, all the bottom linkage 53 is transversely unfolded and is retracted to lower the height and synchronously drive all the stands 1 to move away from the central seat, and all the stroller side walls 4 are transversely unfolded and are upwardly retracted. That is, the folded vehicle body is in the unfolded position, each stroller side wall 4 is elongated laterally, the lower end portion of the left lower bar 42 is upwardly and toward the upper end portion of the left upper bar 41, and the lower end portion of the right lower bar 44 is upwardly and toward the upper end portion of the right upper bar 43. Thus, a space for installing a flexible bag for storage is formed above the underframe 5, and all the cart side walls 4 are arranged around the periphery of the space.

In order to facilitate the household folding cart to push the household folding cart in the unfolding position, the folding cart further comprises a push handle assembly 2 with a push rod 21 and a folding transverse push handle 22, two adjacent vertical outer rods 12 extend upwards from the upper base 13 and are respectively and rotatably connected with the lower end parts of the push rods 21, as shown in the attached drawings 1 and 9, a push rod locking mechanism capable of adjusting the locking position is arranged between the lower end part of each push rod 21 and the upper end part of the corresponding vertical outer rod 12, and the angle and the height of the push handle assembly 2 can be adjusted through the push rod locking mechanism so as to be suitable for people with different heights. In the present embodiment, as shown in fig. 12, the push rod locking mechanism includes an operating slide button slidably disposed on an upper portion of the push rod 21, a first locking groove disposed at a lower end portion of the push rod 21, a rotating ring rotatably disposed in the first locking groove, a second locking groove disposed at an upper end portion of the vertical outer rod 12, a locking tooth capable of axially sliding between the first locking groove and the second locking groove, and a return elastic member disposed in the second locking groove and acting on the locking tooth. There is relative complex helicla flute helical tooth on change and the lock tooth respectively, be connected through the haulage cable between change and the operation slip button, press operation slip button control change and rotate, through the helicla flute helical tooth cooperation, thereby the control is located the lock tooth axial of first locked groove and second locked groove and moves towards the second locked groove completely, realize the unblock between push rod 21 and the 2 footstock of crane, can adjust push rod 21 to suitable angular position, release operation slip button, at the lock tooth gliding to first locked groove of elastic component that resets, lock once more.

A foldable transverse push handle 22 is arranged between the upper end parts of the two push rods 21, as shown in fig. 9 and 10, the foldable transverse push handle 22 is formed by directly pivoting the middle of the two push rods and arranging an intermediate locking mechanism, the structure of the intermediate locking mechanism is also a common locking mechanism, and the intermediate locking mechanism can be applied to any locking mechanism which can lock the joints of the two pivots. As shown in the attached figure 11, the end parts of two push handle rods are respectively provided with a push handle locking groove, a push handle sliding locking tooth capable of sliding is arranged between the two locking grooves, a button for controlling the push handle sliding locking tooth is arranged on the end part of one push handle rod, when the push handle sliding locking tooth is locked, the push handle sliding locking tooth is inserted into the two push handle locking grooves simultaneously, when the push handle sliding locking tooth needs to be unlocked, the button is pressed, the push handle sliding locking tooth is completely pushed into the locking groove of one push handle by the button, the folding transverse push handle 22 can be folded, the folding transverse push handle 22 is unfolded, the button is pulled up, and the middle locking mechanism structure is locked again. When the folding vehicle body is in the unfolding position, the relative distance between the two adjacent vertical outer rods 12 is increased, and the push handle assembly 2 is unfolded between the two vertical outer rods 12. As shown in fig. 13 and 14, the folding transverse pushing handle 22 may also be a three-folding structure formed by sequentially pivotally connecting three pushing handle rods, and the middle pushing handle rod is provided with a middle locking mechanism capable of simultaneously locking the two pushing handle rods. The middle locking mechanism capable of locking the joints of the three sequential pivots is also a common mechanism in the mechanical field, and is not described in detail.

As shown in figure 1, a mop component 3 capable of being transversely folded is arranged between two adjacent upright stands 1 opposite to the push handle component 2. Therefore, the function that the cart pushes one side and pulls the other side when being unfolded is realized, the carrying of articles with heavy weight is convenient, and parent-child activity push-pull cart games are increased. There are a variety of mop assembly configurations known in the art, and those described in the background art also disclose mop assembly configurations. Mop subassembly 3 includes that two tip rotate respectively and set up mop bottom limit pole on corresponding round base 14, rotate the mop bottom interlude of connecting between two mop bottom limit poles, can slide the mop body that sets up on mop bottom interlude, is provided with the slip locking mechanism with both lockings between mop body and the mop bottom interlude. The structure of the sliding lock mechanism can be various, and the sliding lock mechanism can be applied to locking between two sliding parts, and is not described in detail. When the folding trolley body is located under the unfolding position, the relative distance between the two vertical frames 1 is increased, the mop component 3 is unfolded between the two wheel bases 14, the mop component is pulled up and locked through the sliding lock mechanism, when the folding trolley body is located under the folding position, the two vertical frames 1 are relatively close, the mop component 3 is conveniently folded between the two wheel bases 14, the sliding lock mechanism is unlocked, and the mop component is descended and folded.

An embodiment of the household folding cart II is shown in figures 5 and 8. The difference between the second embodiment of the home folding stroller and the first embodiment lies in the structure of the bottom frame 5: similarly, the inner upper bottom rod a and the inner lower bottom rod b are crossed and pivoted at the cross, but the other end of the inner upper bottom rod a is pivoted with one end of a bottom middle connecting rod f, the bottom middle connecting rod f is crossed and pivoted at the cross with the outer lower bottom rod d, the other end of the bottom middle connecting rod f is pivoted with the other end of the outer upper bottom rod c, one end of the outer upper bottom rod c and one end of the outer lower bottom rod d are respectively pivoted with the vertical inner frame 11 of the vertical frame 1 one by one, but when the bottom frame 5 is unfolded, the height is lowered, and when the bottom frame is transversely folded, the height is raised, so that each vertical frame 1 is close to the central seat.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims (10)

1. A domestic folding cart comprising a folding cart body having an extended position and a stowed position, a plurality of wheel assemblies (6), characterized in that: the folding bicycle body comprises a plurality of vertical frames (1) and a chassis (5) connected among all the vertical frames (1), the lower part of each vertical frame (1) is provided with the wheel assembly (6),

the underframe (5) comprises a central seat and a plurality of bottom connecting rod groups (53), wherein the central seat is positioned in the middle and consists of an upper underframe (51) and a lower underframe (52) which can be close to or far away from each other up and down, the bottom connecting rod groups (53) consist of a plurality of bottom rods, each bottom connecting rod group (53) is respectively connected between the central seat and the corresponding vertical frame (1),

each group of the bottom connecting rod groups (53) comprises an inner upper bottom rod (a), an inner lower bottom rod (b), an outer upper bottom rod (c) and an outer lower bottom rod (d), one end part of the inner upper bottom rod (a) is connected with the upper chassis (51) in a pivot way, one end part of the inner lower bottom rod (b) is connected with the lower chassis (52) in a pivot way, one end part of the outer lower bottom rod (d) is connected with one end part of the outer upper bottom rod (c) in a pivot way, the other end part of the outer lower bottom rod (d) is connected with the vertical frame (1) in a pivot way or can be arranged in a sliding way and a rotating way,

the folding trolley body is provided with a mop component (3) and/or a push handle component (2).

2. The home folding stroller of claim 1, characterized in that: one end of outer lower bottom bar (d) with grudging post (1) lower part pivot connection works as folding automobile body is packed up the in-process, goes up chassis (51) and upwards keeps away from chassis (52) down, thereby all end linkage (53) transversely shrink and upwards expand and drive each in step grudging post (1) is drawn close to the center seat, works as folding automobile body expansion in-process, goes up chassis (51) and is close to down chassis (52) down, thereby all end linkage (53) transversely expand and descend to drive all in step grudging post (1) is kept away from to the center seat.

3. The home folding cart of claim 2, wherein: each group of the bottom connecting rod groups (53), the inner upper bottom rod (a) is crossed with the inner lower bottom rod (b) and is pivoted at the cross, the outer upper bottom rod (c) is crossed with the outer lower bottom rod (d) and is pivoted at the cross, the other end of the inner upper bottom rod (a) is pivoted with the other end of the outer upper bottom rod (c), the other end of the inner lower bottom rod (b) is pivoted with the other end of the outer lower bottom rod (d), one end of the outer lower bottom rod (d) is pivoted with the lower part of the vertical frame (1), one end of the outer upper bottom rod (c) can slide up and down and can be arranged in a rotating way relative to the vertical frame (1),

or the inner upper bottom rod (a) and the inner lower bottom rod (b) are crossed and pivoted at the crossed part, the other end part of the inner upper bottom rod (a) is pivoted with one end part of a bottom middle connecting rod (f), the bottom middle connecting rod (f) is crossed and pivoted at the crossed part with the outer lower bottom rod (d), the other end part of the bottom middle connecting rod (f) is pivoted with the other end part of the outer upper bottom rod (c), and one end part of the outer upper bottom rod (c) and one end part of the outer lower bottom rod (d) are respectively pivoted with the vertical frame (1) in a way of being arranged above and below one another.

4. The home folding cart of claim 1, wherein: when the folding bicycle body is in the unfolded position, a space for mounting a flexible bag for storing articles is formed above the underframe (5).

5. The home folding cart of claim 4, wherein: the folding vehicle body further comprises a plurality of trolley side walls (4) which are respectively connected between two adjacent vertical frames (1), and when the folding vehicle body is in the unfolded position, all the trolley side walls (4) are arranged around the space in an enclosing mode.

6. The home folding cart of claim 5, wherein: each trolley side wall (4) comprises an upper left side rod (41) and a lower left side rod (42) which are positioned on the left end side and are crossed in the middle and are pivoted at the cross, one of the upper left side rod (41) and the lower left side rod (42) is pivoted with the corresponding upright frame (1), the other one of the upper left side rod and the lower left side rod is pivoted with the corresponding upright frame (1), the other one of the upper right side rod (43) and the lower right side rod (44) is positioned on the right end side and are crossed in the middle and are pivoted at the cross, one of the upper right side rod (43) and the lower right side rod (44) is pivoted with the corresponding upright frame (1), and the other one of the upper right side rod and the lower right side rod is pivoted with the corresponding upright frame (1), and can slide up and down and can also be pivoted with the corresponding upright frame (1).

7. The home folding stroller of claim 6, characterized in that: the upper end part of the left upper side rod (41) and the upper end part of the right upper side rod (43) are respectively pivoted with the upper parts of the vertical frames (1) corresponding to the left and the right, and the lower end part of the left lower side rod (42) and the lower end part of the right lower side rod (44) are respectively pivoted with lifting slide pieces (15) which are arranged on the vertical frames (1) corresponding to the left and the right in a sliding way.

8. The home folding cart of claim 7, wherein: each trolley side wall (4) is characterized in that the lower end part of the left upper side rod (41) is in pivot connection with the lower end part of the right upper side rod (43), the upper end part of the left lower side rod (42) is in pivot connection with the upper end part of the right lower side rod (44), or the trolley side wall further comprises at least one X-shaped unit (45), each X-shaped unit (45) is crossed by the middle parts of the two rod pieces and is in pivot connection at the crossed part, and at least one X-shaped unit (45) can be connected between the lower end part of the left upper side rod (41), the upper end part of the left lower side rod (42), the upper end part of the right lower side rod (44) and the lower end part of the right upper side rod (43) in a folding mode.

9. The home folding cart of claim 5, wherein: every grudging post (1) including be located inboard perpendicular pole (11), be located outside perpendicular outer pole (12), fixed connection in perpendicular pole (11) upper end with erect upper base (13), the fixed connection between outer pole (12) upper end in perpendicular pole (11) lower tip with erect wheel base (14) between outer pole (12) lower tip, every shallow side wall (4) are connected respectively between adjacent two perpendicular outer poles (12), every group bottom link group (53) connect respectively in center seat and corresponding between perpendicular pole (11), wheel subassembly (6) with wheel base (14) can be connected with dismantling mutually.

10. The home folding stroller of claim 1, characterized in that: the mop component (3) and the push handle component (2) are arranged between two adjacent vertical frames (1) at two opposite side parts of the folding trolley body.

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