CN217672784U

CN217672784U - Hand cart

Info

Publication number: CN217672784U
Application number: CN202123303797.7U
Authority: CN
Inventors: 王宇; 马聪泉; 赵国松
Original assignee: Shaoxing Shangyu Rixing Hardware Products Co Ltd
Current assignee: Shaoxing Shangyu Rixing Hardware Products Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-10-28
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a trolley, which has an unfolding state and a folding state, and comprises two symmetrically arranged side frames and a frame body arranged between the two side frames, wherein the frame body is sleeved with a cloth sleeve to form an accommodating space, the side frames comprise a front foot rod, a rear foot rod, a lower handle rod, an upper handle rod and a side rod, the front foot rod is hinged with the rear foot rod, the lower handle rod is hinged with the rear foot rod, the upper handle rod is hinged with the lower handle rod, and two ends of the side rod are respectively hinged with the rear foot rod and the upper handle rod; the frame body is provided with a front side and a rear side, the front side of the frame body is hinged with the rear foot rod through a first connecting rod, and the rear side of the frame body is hinged with the lower handle rod. The handle rods are divided into an upper handle rod and a lower handle rod which are hinged with each other, when the upper handle rod and the lower handle rod are folded, the rest rod pieces and the frame body of the side frame can be synchronously rotated and folded, and compared with the traditional operation of sliding and folding the handle rods and then folding the frame, the operation steps are saved, and the folding bicycle is convenient and efficient.

Description

Hand cart

Technical Field

The application relates to the technical field of trolleys, in particular to a trolley convenient to fold.

Background

The cart is used to accommodate articles or to carry children, pets, etc. and is moved outdoors, and is designed to be foldable for convenient carrying.

For example, in the existing foldable pet car with publication number CN 203268078U, the supporting body (for carrying a pet) can be folded along with the car frame, but in the folding process of the whole car, in order to minimize the volume, the handle needs to be slid and contracted first, and then the car frame needs to be folded, so that the folding is tedious.

SUMMERY OF THE UTILITY MODEL

The application provides a handcart, convenient folding.

The trolley provided by the application has an unfolding state and a folding state, and comprises two symmetrically arranged side frames and a frame body arranged between the two side frames, wherein the frame body is sleeved with a cloth sleeve to form an accommodating space, each side frame comprises a front foot rod, a rear foot rod, a lower handle rod, an upper handle rod and a side rod, the front foot rod is hinged to the rear foot rod, the lower handle rod is hinged to the rear foot rod, the upper handle rod is hinged to the lower handle rod, and two ends of the side rod are respectively hinged to the rear foot rod and the upper handle rod;

the frame body is provided with a front side and a rear side, the front side of the frame body is hinged with the rear foot rod through a first connecting rod, and the rear side of the frame body is hinged with the lower handle rod.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, in the folding process, the upper handle bar, the lower handle bar, the side bars, the front foot bar and the frame body rotate to approach the rear foot bar;

the frame body is arranged between the rear foot rod and the upper handle rod in a folded state.

Optionally, a second connecting rod and a third connecting rod are hinged between the front leg rod and the rear leg rod, a fourth connecting rod is hinged on the second connecting rod and/or the third connecting rod, and the fourth connecting rod is hinged to the side rod.

Optionally, the fourth connecting rod is provided with a bending section which avoids the first connecting rod in a folded state.

Optionally, a hinge point between the frame and the lower handle bar is disposed adjacent to the top end of the lower handle bar.

Optionally, one end of the first connecting rod is hinged to the top of the rear foot rod, and one end of the lower handle rod is hinged to the middle of the rear foot rod;

in the unfolded state, the other end of the first connecting rod faces the front side, and the other end of the lower handle bar faces the rear side.

Optionally, the bottom sides of the two lower handle bars are connected with a cross bar.

Optionally, the frame body is in a closed shape.

Optionally, one of the upper handle bar and the side bar is provided with a lock slot, and the other is movably provided with a lock pin matched with the lock slot, and an elastic member for driving the lock pin to extend into the lock slot to keep the handcart in the unfolding state.

Optionally, an elastic reset piece for driving the trolley to unfold is arranged at the hinged position between the upper handle bar and the side bar.

The utility model provides a handcart, go up handle bar and lower handle bar and rotate the in-process at folding and drive side fender, preceding foot pole and framework synchronous rotation, need not to distribute and fold convenient operation.

Drawings

FIG. 1 is a perspective view of a cart according to an embodiment of the present application;

FIG. 2 is a perspective view of the cart of FIG. 1 during folding;

FIG. 3 is a perspective view of the cart of FIG. 1 in a collapsed position;

FIG. 4 is a front view of a cart according to an embodiment of the present application;

FIG. 5 is a schematic illustration of the cart of FIG. 4 during folding;

fig. 6 is a schematic view of the cart of fig. 4 in a collapsed position.

The reference numerals in the figures are illustrated as follows:

100. a side frame; 101. a front side; 102. a rear side; 103. a front wheel; 104. a rear wheel;

110. a front foot bar; 120. a rear foot bar; 130. a lower handle bar; 131. a cross bar; 140. an upper handle bar;

150. a side lever; 160. a first link; 170. a second link; 180. a third link;

190. a fourth link; 191. bending the section;

200. a frame body; 210. cloth sheathing; 220. an accommodating space;

300. a boundary range.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

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

Referring to fig. 1 to 6, the present application provides a cart having an unfolded state and a folded state, which includes two symmetrically arranged side frames 100, and a frame 200 installed between the two side frames 100, wherein the side frames 100 have a front side 101 and a rear side 102, and a front wheel 103 and a rear wheel 104 are respectively installed at the bottom of the side frames 100 for movement. The frame body 200 is sleeved with the cloth cover 210 to form an accommodating space 220, the accommodating space 220 can be used for storing articles, bearing children, pets and the like, and the cloth cover 210 is made of flexible materials, so that the handcart can be conveniently folded and deformed to be contracted.

To explain a specific connection manner between the side frame 100 and the frame 200, the side frame 100 includes a front foot bar 110, a rear foot bar 120, a lower handle bar 130, an upper handle bar 140, and a side bar 150, wherein the upper handle bar 140 and the lower handle bar 130 form a handle bar, the front foot bar 110 is hinged to the rear foot bar 120, the lower handle bar 130 is hinged to the rear foot bar 120, the upper handle bar 140 is hinged to the lower handle bar 130, and two ends of the side bar 150 are respectively hinged to the rear foot bar 120 and the upper handle bar 140. The frame 200 has the same front and rear sides as the side frames 100, the front side of the frame 200 is hinged to the rear foot bar 120 by the first link 160, and the rear side of the frame 200 is hinged to the lower handle bar 130.

In the folding process, the upper handle bar 140 serves as a driving rod and rotates relative to the lower handle bar 130 to further drive the side bars 150 and the frame body 200 to rotate and approach to the rear foot bar 120, a linkage is arranged between the front foot bar 110 and the rest of the members or other transmission mechanisms are used for synchronously rotating and approaching to the rear foot bar 120, the front foot bar 110 is positioned at the front side of the rear foot bar 120 in the folding state, and the upper handle bar 140, the lower handle bar 130, the side bars 150 and the frame body 200 are positioned at the rear side of the rear foot bar 120.

The handle rod is divided into an upper handle rod part and a lower handle rod part, so that when the handle rod is folded, the side frames and the frame body are folded, and compared with the traditional operation mode that the handle rod is folded in a sliding mode and then the frame is folded, the operation steps are saved, and the folding bicycle is convenient and efficient.

In one embodiment, a second link 170 and a third link 180 are hinged between the front leg 110 and the rear leg 120, a fourth link 190 is hinged on the second link 170 and/or the third link 180, and the fourth link 190 is hinged with the side bar 150. The front foot bar 110, the second link 170, the third link 180 and the rear foot bar 120 form a foldable four-bar linkage, and the side bar 150 drives the second link 170 and/or the third link 180 to move through the fourth link 190 to rotate the front foot bar 110 during the rotation process. Wherein the second link 170, the third link 180 and the fourth link 190 are hinged at a point, and the fourth link acts on the hinged point to move the second link 170 and the third link 180 during the unfolding/folding process. The fourth link 190 is provided with a bent section 191 which avoids the first link 160 in the folded state, while the other links are arranged in a staggered manner in the width direction of the cart to avoid folding interference.

Since the upper and lower handle bars are folded and closed during the folding process, the folded volume is reduced, and referring to fig. 6, in one embodiment, the frame 200 is located between the rear foot bar 120 and the upper handle bar 140 in the folded state. To further explain the position of the frame body 200 after folding, the side frame 100 forms a boundary area 300 in the folded state, and the frame body 200 is located within the boundary area 300.

In one embodiment, the hinge point between the frame 200 and the lower handle bar 130 is disposed near the top end of the lower handle bar 130, so as to increase the depth of the accommodating space.

In an embodiment, one end of the first link 160 is hinged to the top of the rear foot bar 120, one end of the lower handle bar 130 is hinged to the middle or near the middle of the rear foot bar 120, and in the unfolded state, the other end of the first link 160 faces the front side, and the other end of the lower handle bar 130 faces the rear side, so that the first link 160, the lower handle bar 130 and the frame 200 form a triangular structure, so as to ensure the bearing strength of the frame 200.

In addition, the strength can be improved by: the frame 200 is a closed shape, such as a rectangular frame shown in fig. 1, or a waist-shaped frame. Wherein, the bottom sides of the two lower handle bars 130 are connected with a cross bar 131, which enhances the structural strength of the handcart. In combination with the frame 200 of the closed shape of the previous embodiment, both the top and bottom sides of the two lower handle bars 130 are reinforced.

Of course, to maintain the cart in the unfolded position, one of the upper handle bar 140 and the side bar 150 is provided with a locking slot (not visible in the assembled position), and the other is movably provided with a locking pin (not visible in the assembled position) which is engaged with the locking slot, and an elastic member (not visible in the assembled position) which urges the locking pin into the locking slot to maintain the cart in the unfolded position. The resilient member is typically a spring. Wherein, the hinged part between the upper handle bar 140 and the side bar 150 is provided with an elastic reset piece (such as a torsion spring) for driving the handcart to be unfolded, thereby assisting the unfolding, being rapid and saving labor.

The handle bars in the handcart are divided into the upper handle bar and the lower handle bar which are hinged to each other, when the upper handle bar and the lower handle bar are folded, the rest of rod pieces and the frame body of the side frame rotate and are folded synchronously, and compared with the traditional handle bars, the handcart is folded in a sliding mode, the operation of folding the frame is achieved, operation steps are saved, and the handcart is convenient and efficient.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. The trolley is in an unfolded state and a folded state and comprises two symmetrically arranged side frames and a frame body arranged between the two side frames, and the frame body is sleeved with a cloth sleeve to form an accommodating space;

2. A stroller according to claim 1, wherein said upper, lower, side, front and frame members are pivotally moved closer to said rear leg during folding;

3. A trolley according to claim 2, characterized in that a second and a third link are articulated between the front and rear foot bars, a fourth link being articulated on the second and/or third link, the fourth link being articulated with the side bars.

4. A trolley according to claim 3, characterized in that the fourth link is provided with a bend section which in a collapsed state avoids the first link.

5. A stroller in accordance with claim 1, wherein the hinge point between the frame and the lower handle bar is disposed adjacent the top end of the lower handle bar.

6. A stroller according to claim 1, wherein one end of said first link is hinged to the top of said rear foot bar and one end of said lower handle bar is hinged to the middle of said rear foot bar;

7. A trolley according to claim 1, characterized in that a cross bar is connected to the bottom side of the two lower handle bars.

8. A trolley according to claim 1, characterized in that the frame body is of closed shape.

9. A wheelbarrow according to claim 1, wherein one of the upper handle bar and the side bar is provided with a locking slot and the other is movably mounted with a locking pin which cooperates with the locking slot, and a resilient member which urges the locking pin into the locking slot to retain the wheelbarrow in the extended position.

10. A trolley as claimed in claim 1, characterized in that the articulation between the upper handle bar and the side bars is provided with an elastic return for urging the trolley to unfold.