CN220009868U - Folding cart - Google Patents

Abstract

The utility model discloses a folding cart, comprising: a main frame and an auxiliary frame. The main frame has a hinge portion. The lower end of the main frame is provided with a main wheel. The upper end of the auxiliary frame is hinged with the hinge part in an adjustable way, so that the auxiliary frame can turn backwards around the hinge part to swing for a certain angle relative to the main frame. The lower end of the auxiliary frame is provided with an auxiliary wheel. The front side of the main frame is provided with a seat plate and a bracket. The seat plate and the bracket are both adjustably hinged with the main frame. The folding cart provided by the utility model adopts a folding structure, is convenient to store or carry, is provided with the seat plate and the bracket, can provide a bearing support for objects through the bracket while providing a seat for children, and can realize bearing pushing of the children and the objects.

Description

Folding cart

Technical Field

The utility model relates to the field of carts, in particular to a folding cart.

Background

The cart is a common tool in daily life, such as a baby stroller, a cart for carrying heavy objects, and the like. The shallow is set up to collapsible in general, through folding the shallow to reduce the space that the shallow needs to occupy, realize easily depositing, conveniently carrying and accomodating the effect.

The folding cart in the prior art has single function or is used as an infant cart, a seat pocket for taking an infant needs to be arranged on a frame, the volume is large after folding, and the carrying and the storage occupy more space; or can only be used for carrying objects, and the lower tilting force of the trolley is unsupported and is relatively laborious in actual use, and the condition of single function exists. Therefore, the folding cart which is convenient for users to go on foot for shopping or traveling and can be taken when the children of the same non-infant stage do not wish to walk is provided, and the problem to be solved is needed.

Disclosure of Invention

The present utility model aims to provide a folding cart which solves one or more of the technical problems of the prior art, and at least provides a beneficial choice or creation condition.

The technical scheme adopted for solving the technical problems is as follows:

a folding cart comprising: a main frame and an auxiliary frame; the main frame is provided with a hinge part, and the lower end of the main frame is provided with a main wheel; the upper end of the auxiliary frame is hinged with the hinge part in an adjustable way, so that the auxiliary frame can turn backwards around the hinge part to swing for a certain angle relative to the main frame, and the lower end of the auxiliary frame is provided with an auxiliary wheel; the front side of the main frame is provided with a seat plate and a bracket, and the seat plate and the bracket are both hinged with the main frame in an adjustable way.

The folding cart provided by the utility model has at least the following beneficial effects: the auxiliary frame can turn backwards for a certain angle around the hinge part relative to the main frame, so that the main frame and the auxiliary frame can form a triangle structure, and the main wheel and the auxiliary wheel are arranged front and back, thereby realizing pushing of the folding cart. When a child needs to sit, the seat plate can be turned over to provide bearing support for the child; when the articles need to be carried, the bracket can be turned over again, and bearing support is provided for the carried articles. The folding cart provided by the utility model adopts a folding structure, is convenient to store or carry, is provided with the seat plate and the bracket, can provide a bearing support for objects through the bracket while providing a seat for children, and can realize bearing pushing of the children and the objects.

As a further improvement of the above technical solution, the distance between the main wheel and the hinge portion is identical to the distance between the auxiliary wheel and the hinge portion. Through the technical scheme, when the auxiliary frame is turned over to be supported, the auxiliary frame and the main frame can form an isosceles triangle structure. The main wheel and the auxiliary wheel are all acted on the ground, and the load of the hinge part can be uniformly transferred to the main frame and the auxiliary frame respectively, so that the stress is more uniform and stable.

As a further improvement of the above technical solution, the diameter of the main wheel is not smaller than the diameter of the auxiliary wheel. Through above-mentioned technical scheme, when the sub vehicle frame is folding to overturn to with main frame laminating, the sub wheel can not cause the hindrance to the use of main wheel.

As a further improvement of the above technical solution, the diameters of the main wheel and the auxiliary wheel are consistent. Through above-mentioned technical scheme, when the sub vehicle frame is folding to overturn to with the main vehicle frame laminating, main wheel and sub wheel can simultaneously with ground contact, atress simultaneously increases area of contact.

As a further improvement of the technical scheme, the main frame comprises an upper frame body and a lower frame body, wherein the upper frame body is arranged on the upper side of the lower frame body and is connected with the lower frame body, and the hinge part and the main wheel are respectively arranged at the upper end and the lower end of the lower frame body.

As a further improvement of the above technical solution, the upper frame body is telescopically inserted into the lower frame body. Through above-mentioned technical scheme, go up the support body and connect through extending structure with lower support body, can adjust the length of stretching out as required during the use, can retract simultaneously and accomodate.

As a further improvement of the above technical solution, the lower end of the upper frame body is adjustably hinged with the hinge portion. Through above-mentioned technical scheme, go up the support body can be relative the lower support body realizes the upset folding, conveniently accomodates.

As a further improvement of the above technical solution, one end of the bracket is rotatably hinged to the lower end of the lower frame body, and one end of the seat plate is rotatably hinged to the hinge portion. Through the technical scheme, the seat and the bracket are arranged up and down, when in actual use, a child can sit on the seat, and objects can be placed on the bracket.

As a further improvement of the technical scheme, the upper end of the upper frame body is provided with a handle. Through above-mentioned technical scheme, the handle can improve folding shallow's operability, makes things convenient for the push-and-pull to remove.

As a further improvement of the technical scheme, the handles are arranged on two sides of the upper end of the upper frame body in pairs and are connected with the upper frame body in an adjustable mode. Through above-mentioned technical scheme, the handle that sets up in pairs facilitates the use both hands to hold respectively. The handles are connected in an adjustable way, so that the adjustment, storage or position adjustment is realized.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a side view of a folding cart provided by the utility model with a seat and a bracket in a practical state;

fig. 2 is a side view of the folding cart provided by the utility model with the seat and the bracket in a stowed condition;

FIG. 3 is a side view of the folding cart provided by the utility model with the subframe and upper frame in a storage process;

fig. 4 is a partial perspective view of the upper frame provided by the utility model in the handle position.

In the figure: 100. a main frame; 110. an upper frame body; 111. a connecting rod; 112. a handle; 1121. a connection end; 1122. a grip section; 120. a lower frame body; 121. a seat plate; 122. a bracket; 130. a hinge part; 140. a main wheel; 200. an auxiliary frame; 210. and a secondary wheel.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements 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 utility model.

In the description of the present utility model, if there is a word description such as "a plurality" or the like, the meaning of a plurality is one or more, and the meaning of a plurality is two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 4, the folding cart of the present utility model makes the following embodiments:

a folding cart comprising: a main frame 100 and a subframe 200.

The main frame 100 has a hinge 130. The hinge 130. Is provided in the middle of the main frame 100. The lower end of the main frame 100 is provided with main wheels 140 arranged in pairs.

The upper end of the auxiliary frame 200 is adjustably hinged to the hinge portion 130, so that the auxiliary frame 200 can turn back and swing around the hinge portion 130 for a certain angle relative to the main frame 100. The lower end of the auxiliary frame 200 is provided with auxiliary wheels 210 arranged in pairs. The rotation axis of the sub-frame 200 is parallel to the rotation axes of the main wheel 140 and the sub-wheel 210.

The front side of the main frame 100 is provided with a seat plate 121 and a bracket 122. The seat plate 121 and the bracket 122 are both adjustably hinged to the main frame 100.

In actual use, the auxiliary frame 200 may be turned back by a certain angle around the hinge 130 relative to the main frame 100, so that the main frame 100 and the auxiliary frame 200 may form a triangle structure, and the main wheel 140 and the auxiliary wheel 210 may be disposed front and back, so that the folding cart may be pushed. When a child needs to sit, the seat plate 121 can be turned over, so that bearing support is provided for the child; when the articles need to be carried, the bracket 122 can be turned over again, so as to provide bearing support for the carried articles.

In this embodiment, the subframe 200 and the main frame 100 each have a stopper portion provided around the rotation axis of the subframe 200. During the process of turning the subframe 200 relative to the main frame 100, the limiting portions of the subframe 200 and the main frame 100 also move relatively around the hinge portion 130. After the subframe 200 is turned over by a certain angle relative to the main frame 100, the limiting parts are abutted against each other, so that the turning angle is limited.

In other embodiments, the main frame 100 and the sub-frame 200 are adjustably hinged by a modular folding connection assembly. The folding connection assembly comprises a plurality of mutually hinged joint parts, the staggered angle between the adjacent joint parts is adjustable, and the main frame 100 and the auxiliary frame 200 are respectively connected with different joint parts.

In other embodiments, the main frame 100 and the auxiliary frame 200 may be hinged by rotating the pins eccentrically and the pin holes corresponding to the pins in different positions, so as to realize multi-angle adjustable hinge.

The adjustable hinge structure of the seat 121 and the bracket 122 with the main frame 100 may refer to various examples of the adjustable hinge structure of the sub-frame 200 with the main frame 100, and various examples will not be described herein.

The main frame 100 includes: an upper housing 110 and a lower housing 120. The upper frame 110 is disposed on the upper side of the lower frame 120 and connected to the lower frame 120. The hinge 130 and the main wheel 140 are respectively disposed at the upper and lower ends of the lower frame 120.

In this embodiment, the seat 121 and the bracket 122 are disposed up and down. One end of the seat plate 121 is rotatably hinged to the hinge 130, so that the seat plate 121 can be positioned at the middle position of the main frame 100 when being turned up. One end of the bracket 122 is rotatably hinged to the lower end of the lower frame 120, so that the bracket 122 can be attached to the lower frame 120 when being folded upwards, the bracket 122 is convenient to store, a corner can be formed with the lower frame 120 when being folded downwards, the supporting object can be conveniently supported, and the object carrying is realized.

In this embodiment, the upper frame 110 is telescopically inserted into the lower frame 120. The upper frame 110 is inverted U-shaped. The upper frame 110 has two connecting rods 111 extending in a straight direction. The lower frame 120 has telescopic insertion holes corresponding to the connecting rods 111 one by one. The connecting rod 111 is inserted into the telescopic jack.

The lower extreme of connecting rod 111 is equipped with the bullet round pin that sets up along the level, flexible jack is equipped with the pinhole that sets up along the level that corresponds with the bullet round pin. In order to achieve the adjustment of a plurality of lengths, the number of the pin holes is plural, and the plurality of pin holes are arranged along the expansion and contraction direction of the connecting rod 111.

The upper end of the upper frame 110 is provided with a button in transmission connection with the spring pin. The push button controls the spring pin to stretch and retract, so that the connecting rod 111 and the telescopic jack can realize stretch and retract adjustment, and the relative positions of the upper frame 110 and the lower frame 120 can be adjusted, so that the device is suitable for different occasions or different users.

In a further embodiment, a telescopic tube is further provided between the connecting rod 111 and the telescopic jack. The telescopic sleeve is sleeved on the outer side of the connecting rod 111 and penetrates through the inner side of the telescopic jack. The connecting rod 111, the telescopic sleeve and the telescopic jack can form a stacked telescopic structure, and the telescopic adjustment range is enlarged.

The upper frame 110 and the lower frame 120 in this embodiment are accommodated by a telescopic structure. In other embodiments, the lower end of the upper frame 110 is adjustably hinged to the hinge 130. The upper frame 110 can turn around the hinge 130 relative to the lower frame 120, so that the upper frame 110 and the lower frame 120 can be folded and attached to each other to realize storage, and can be unfolded for use. The adjustable hinge structures of the upper frame 110 and the lower frame 120 may refer to various examples of the adjustable hinge structures of the sub-frame 200 and the main frame 100, and are not described herein.

In this embodiment, the main wheels 140 are disposed in pairs at the lower end of the main frame 100, and the auxiliary wheels 210 are disposed in pairs at the lower end of the auxiliary frame 200. When the sub-frame 200 is turned back with respect to the main frame 100, the main wheels 140 and the sub-wheels 210 are disposed in a front-to-back manner. The main wheel 140 or the auxiliary wheel 210 is respectively arranged at four corner positions of a rectangular range.

The rotation axes of the auxiliary frame 200, the main wheel 140 and the auxiliary wheel 210 are respectively a first rotation axis, a second rotation axis and a third rotation axis. In this embodiment, when the folding cart is not in the steering state, the axial directions of the main wheel 140 and the auxiliary wheel 210 extend in the left-right direction, the distance between the first rotation axis and the second rotation axis, and the distance between the first rotation axis and the third rotation axis are consistent, that is, the distances between the main wheel 140 and the auxiliary wheel 210 and the hinge 130 are consistent, so that when the auxiliary frame 200 is turned back relative to the main frame 100, an isosceles triangle structure can be formed, and the stress is more uniform.

Further, when the subframe 200 is turned over relative to the main frame 100, the included angle between the two is 60 degrees. When the subframe 200 is turned 60 degrees relative to the main frame 100, the distances among the first rotation axis, the second rotation axis and the third rotation axis are equal, and the subframe 200 and the main frame 100 can form an equilateral triangle structure.

In order to enable the sub-frame 200 to be turned over to be attached to the main frame 100, the main wheel 140 and the sub-wheel 210 are disposed so as to be offset from each other in the front-rear projection. In this embodiment, the two auxiliary wheels 210 arranged in pairs are arranged left and right, the two main wheels 140 arranged in pairs are arranged left and right, and the distance between the two main wheels 140 is greater than the distance between the two auxiliary wheels 210. On a projection plane perpendicular to the front-rear direction, two of the sub wheels 210 are provided between two of the main wheels 140. The main wheel 140 and the auxiliary wheel 210 are arranged in a left-right staggered manner, so that mutual obstruction between the main wheel 140 and the auxiliary wheel 210 can be avoided when the auxiliary frame 200 is folded and attached to the main frame 100.

In a further embodiment, the main wheel 140 and the auxiliary wheel 210 are on the same axis when the auxiliary frame 200 is attached to the main frame 100. Preferably, the diameters of the main wheel 140 and the auxiliary wheel 210 are consistent, so that when the auxiliary frame 200 is folded and attached to the main frame 100, the main wheel 140 and the auxiliary wheel 210 can be coaxially arranged and simultaneously contact with the ground, the stress area is increased, and the stress is more uniform and stable.

The distance between the two connecting rods 111 of the upper frame 110 is preferably smaller than the width of the seat 121. When a child sits on the seat plate 121 facing the upper frame 110, the two connecting rods 111 can be positioned at the crotch of the child, so that the riding comfort is improved, and the child can rest on the connecting rods 111 to avoid the child from sliding off the seat plate 121.

On the projection surface in the left-right direction, when the auxiliary frame 200 is turned over relative to the main frame 100, the included angles between the main frame 100 and the auxiliary frame 200 and the horizontal ground are all 60 degrees. The seat plate 121 can be folded to fit the main frame 100. In some embodiments, the seat 121 can be flat with the horizontal surface when flipped open. In this embodiment, when the seat plate 121 is unfolded, the seat plate 121 is inclined at an angle to the horizontal. The seat 121 is lower at one end connected to the main frame 100 and higher at the other end, and the angle between the seat 121 and the horizontal plane is preferably within 10 degrees, so that the child can lean slightly toward the upper frame 110 when riding.

In order to facilitate pushing and pulling and improve the operability of the folding cart, a handle 112 is disposed at the upper end of the upper frame 110. The handles 112 are disposed on both sides of the upper end of the upper frame 110 in pairs and are adjustably connected to the upper frame 110. Specifically: the upper frame 110 has a connecting slot on both left and right sides of its upper end, and the handle 112 has a connecting end 1121 and a gripping section 1122. The connection groove extends in the left-right direction. A connecting shaft is elastically arranged in the connecting groove along the left-right direction, and the end part of the connecting shaft is rotatably hinged with the connecting end 1121.

The cross-sectional shapes of the connecting groove and the connecting end 1121 are identical, and the cross-sectional shapes of the connecting groove and the connecting end 1121 are non-circular. When the axial direction of the handle 112 extends in the left-right direction, the connecting end 1121 can be inserted into the connecting groove, the connecting shaft can elastically tighten the connecting end 1121, and then the handle 112 can drive the folding cart to move. When the handle 112 is required to be stored, the handle 112 is pulled out from the connecting groove in the left-right direction and folded, and at this time, the connecting shaft can tighten the handle 112 on the side surface of the upper frame 110, thereby realizing the storage of the handle 112. For easy storage, storage slots corresponding to the handles 112 are further provided on the left and right sides of the upper end of the upper frame 110.

In other embodiments, the handle 112 can be detachably mounted on the upper end of the upper frame 110, and the handle 112 can be used or stored by mounting or dismounting. The upper frame 110 may be provided with a plurality of mounting positions, so that the relative positions of the handle 112 and the upper frame 110 can be adjusted as required.

In a further embodiment, to facilitate steering of the folding cart, the main wheel 140 is a directional wheel and the auxiliary wheel 210 is a universal wheel. For convenient parking, the auxiliary wheel 210 is provided with a braking structure, and the auxiliary wheel 210 is a universal wheel with a brake. In other embodiments, the main wheel 140 may be a universal wheel, so that the folding cart has higher flexibility but reduced maneuverability.

In this embodiment, the upper frame 110 and the lower frame 120 of the main frame 100, and the subframe 200 are all made of aluminum alloy materials. The aluminum alloy has the advantages of high strength, light weight, corrosion resistance and the like. In other embodiments, the main frame 100 and the auxiliary frame 200 may be made of stainless steel, cast iron, square iron, etc. through welding or splicing.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, various changes, modifications, substitutions and alterations can be made by those skilled in the art without departing from the principles and spirit of the utility model, and such changes, modifications, equivalents and substitutions are intended to be included within the scope of the utility model as defined by the claims and their equivalents.

Claims (10)

1. A folding cart, characterized in that: comprising the following steps: a main frame and an auxiliary frame;

the main frame is provided with a hinge part, and the lower end of the main frame is provided with a main wheel;

the upper end of the auxiliary frame is hinged with the hinge part in an adjustable way, so that the auxiliary frame can turn backwards around the hinge part to swing for a certain angle relative to the main frame, and the lower end of the auxiliary frame is provided with an auxiliary wheel;

the front side of the main frame is provided with a seat plate and a bracket, and the seat plate and the bracket are both hinged with the main frame in an adjustable way.

2. The folding cart of claim 1, wherein: the distance between the main wheel and the hinge part is consistent with the distance between the auxiliary wheel and the hinge part.

3. The folding cart of claim 2, wherein: the diameter of the main wheel is not smaller than that of the auxiliary wheel.

4. A folding cart according to claim 3, characterized in that: the diameters of the main wheel and the auxiliary wheel are consistent.

5. The folding cart of claim 1, wherein: the main frame comprises an upper frame body and a lower frame body, the upper frame body is arranged on the upper side of the lower frame body and is connected with the lower frame body, and the hinge part and the main wheel are respectively arranged at the upper end and the lower end of the lower frame body.

6. The folding cart of claim 5, wherein: the upper frame body is in telescopic connection with the lower frame body.

7. The folding cart of claim 5, wherein: the lower end of the upper frame body is hinged with the hinge part in an adjustable mode.

8. The folding cart of claim 5, wherein: one end of the bracket is rotatably hinged to the lower end of the lower frame body, and one end of the seat plate is rotatably hinged to the hinge part.

9. The folding cart of claim 5, wherein: the upper end of the upper frame body is provided with handles, and the handles are arranged on two sides of the upper end of the upper frame body in pairs and are connected with the upper frame body in an adjustable mode.

10. The folding cart of claim 1, wherein: the main wheel is a directional wheel, and the auxiliary wheel is a universal wheel with brake.