CN116118835A - Handcart convenient to fold - Google Patents

Abstract

The invention discloses a handcart convenient to fold, which comprises two support columns in mirror image arrangement, wherein wheels are arranged at the bottom ends of the two support columns; the two ends of the handle are respectively connected with the tops of the two support columns, and the handle is in buckle type connection with the support columns; the fixed frame group comprises an upper fixed frame, a middle fixed frame and a lower fixed frame, and a plurality of first connecting rods are arranged among the upper fixed frame, the middle fixed frame and the lower fixed frame; the upper fixing frame, the middle fixing frame and the lower fixing frame are hexagonal frames formed by sequentially connecting second connecting rods end to end, and the second connecting rods are movably connected; the first bearing plate is hinged with one side of the lower fixed frame, and the opposite side of the first bearing plate can be freely lapped on one side of the lower fixed frame; and one side of the second supporting plate is hinged with one side of the middle fixing frame, and the opposite side of the second supporting plate can be freely lapped on one side of the middle fixing frame.

Description

A handcart that is easy to fold

technical field

The invention relates to the technical field of trolleys, in particular to a trolley which is easy to fold.

Background technique

The trolley is a means of transportation for transporting items in daily life, but in the opening and folding operation of the storage box of the existing shopping trolley, each plate of the storage box needs to be opened and folded one by one, and there are many operating steps. Inconvenient operation and low efficiency. In addition, the wheels of existing shopping carts can hardly be disassembled, or the wheel assembly is generally troublesome.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a handcart that is easy to fold, has a simple and practical structure, and is easy to store.

A handcart that is easy to fold according to an embodiment of the present invention includes:

Two support columns, the two support columns are set in mirror image, the bottom ends of the two support columns are equipped with wheels, and the wheels are detachably connected to the support columns;

Handle, the two ends of the handle are respectively connected to the tops of the two supporting columns, and the handle and the supporting columns are snap-fitted;

The fixed frame group includes the upper fixed frame, the middle fixed frame and the lower fixed frame. The fixed frame and the lower fixed frame are arranged parallel to each other,

A plurality of first connecting rods are arranged between the upper fixed frame, the middle fixed frame and the lower fixed frame;

Wherein, the upper fixed frame, the middle fixed frame and the lower fixed frame are all hexagonal frames composed of second connecting rods connected end to end in sequence, and the second connecting rods are flexibly connected;

The first support plate, the first support plate is arranged on the lower fixed frame, one side of the first support plate is hinged to one side of the lower fixed frame, and the opposite side of the first support plate can be freely overlapped on the on one side of the lower fixed frame;

The second supporting plate, the second supporting plate is arranged on the middle fixed frame, one side of the second supporting plate is hinged to one side of the middle fixed frame, and the opposite side of the second supporting plate can be freely overlapped on the on one side of the fixed frame.

A handcart that is easy to fold according to an embodiment of the present invention has at least the following beneficial effects: the upper fixed frame, the middle fixed frame and the lower fixed frame are all hexagonal frames composed of second connecting rods connected end to end in sequence, and the second The connecting rods are movably connected, so that the user needs to pull up the first supporting plate, so that the first supporting plate releases the restraint on the expansion of the lower fixing frame, and the user can fold and store the lower fixing frame. In addition, it should be noted that a plurality of first connecting rods are arranged between the upper fixed frame, the middle fixed frame and the lower fixed frame, so that when the lower fixed frame is folded and stored, the upper fixed frame and the middle fixed frame can be folded and stored at the same time. In this way, the folding of the storage frame of the entire trolley is completed; on the contrary, if the user needs to unfold the storage frame of the entire trolley, only the upper fixed frame needs to be unfolded manually, and when the upper fixed frame is unfolded, the middle fixed frame and the lower fixed frame will be unfolded together. The frame is driven to unfold at the same time. When it is fully unfolded, the first support plate is put down so that the frame of the first support rod overlaps with the lower fixed frame and abuts against the first connecting rod on the lower fixed frame. Implement expansion constraints on the fixed frame group to prevent the fixed frame from collapsing. In addition, a second supporting plate is also designed in the present application, and the second supporting plate is installed on the middle fixing frame, and the installation method is the same as that of the first supporting plate. Utilizing the second support plate can facilitate the user to divide the storage frame of the trolley into two layers according to the types of items. The overall structure is simple and practical, and the folding and unfolding of the trolley is convenient.

According to a handcart that is easy to fold according to an embodiment of the present invention, a connecting assembly is provided between the wheel and the supporting column, and the connecting assembly includes a first connecting piece and a second connecting piece, the first connecting piece is installed at the bottom of the supporting column, and the second connecting piece The connecting piece is fixed on the connecting shaft of the wheel, and the first connecting piece and the second connecting piece are snap-fit connected.

According to a handcart that is easy to fold according to an embodiment of the present invention, the first connecting piece includes a mounting sleeve and a connecting sleeve, the mounting sleeve is socketed with the supporting column, and the two sides of the connecting sleeve are provided with snap-in slots, and the snap-in slots An elastic pressing rod is arranged inside, and movable blocks are arranged on both sides of the second connecting piece, and the second connecting piece is inserted into the connecting sleeve so that the holding block is engaged in the engaging groove and pressed against the elastic pressing bar. Connected, the elastic pressing rod can make the clamping block break away from the clamping groove.

According to a handcart that is easy to fold according to an embodiment of the present invention, the second connecting piece includes a hollow inserting rod, an elastic piece and two clamping blocks, through holes are provided on both sides of the inserting rod, and one end of the clamping block passes through the through hole , the shrapnel is arranged in the inner cavity of the insertion rod, and the two ends of the shrapnel are respectively connected with the ends of the clamping blocks on both sides of the insertion rod.

According to an easy-to-fold trolley according to an embodiment of the present invention, the opening of the connecting sleeve is provided with a guide portion, which facilitates the installation of the second connecting piece and the first connecting piece, and guides the insertion of the insertion rod into the connecting sleeve.

According to a handcart that is easy to fold according to an embodiment of the present invention, the lower fixing frame is provided with supporting feet to support the handcart and prevent it from falling over.

According to an easy-to-fold trolley according to an embodiment of the present invention, pedals are provided on the frame on the same side as the first supporting plate and the wheels. When the user needs to fold the trolley, the user only needs to step on the pedals to make the first supporting plate Just lift up one end, eliminating the need for the user to bend over.

According to an embodiment of the present invention, a handcart that is easy to fold is provided with a connecting hook on the frame on the side opposite to the pedal, and the connecting hook is movably connected with any first connecting rod. When the trolley is folded and one end of the first supporting plate is lifted by stepping on the pedal, when the connecting hook is active, because the connecting hook is hooked with the first connecting rod and can move on the first connecting rod, and the first connecting rod They are respectively connected with each fixed frame. Therefore, when the connecting hook moves the upper, middle and lower fixed frames by driving the first connecting rod to make the trolley complete folding, the whole process does not require the user to bend down, and the operation is easy.

According to a handcart that is easy to fold according to an embodiment of the present invention, a lock is provided on one side of the second supporting rod overlapping the middle fixing frame, the lock includes a fixing part and a clamping part, and the fixing part is sleeved on the second On the frame of the supporting plate, the clamping portion is engaged with the frame of the upper fixed frame, which is convenient for the user to choose to use the second supporting plate according to the actual situation.

According to a handcart that is easy to fold according to an embodiment of the present invention, an anti-slip sleeve is provided on the outside of the handle to prevent slipping when the user pulls the cart.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and understandable from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is the structural diagram of a kind of handcart that is convenient to fold in the embodiment of the present invention;

FIG. 2 is a schematic structural view of a first connector according to an embodiment of the present invention;

Fig. 3 is an installation cross-sectional view of the first connecting piece and the second connecting piece according to the embodiment of the present invention.

Explanation of reference signs:

support column 1;

handle 2;

upper fixed frame 3;

middle fixed frame 4;

Lower fixed frame 5; supporting feet 5-1;

the first connecting rod 6;

the second connecting rod 7;

The first support plate 8; pedal 8-1; connecting hook 8-2;

The second supporting plate 9;

The first connecting piece 10; the installation sleeve 10-1; the connecting sleeve 10-2; the clamping groove 10-3; the elastic pressure rod 10-4;

The second connecting piece 11; the insertion rod 11-1; the shrapnel 11-2; the clamping block 11-3;

wheel 12;

Lock 13; fixed part 13-1; clamping part 13-2;

Anti-slip sleeve14.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the invention, several means one or more, and multiple means more than two. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

1 to 3, the embodiment of the present invention provides a handcart that is easy to fold, including two support columns 1, the two support columns 1 are mirrored, and wheels 12 are installed on the bottom ends of the two support columns 1, and the wheels 12 It is detachably connected with the support column 1; the handle 2, the two ends of the handle 2 are respectively connected with the tops of the two support columns 1, and the handle 2 and the support column 1 are snap-fit connection; the fixed frame group includes the upper fixed frame 3, the middle The fixed frame 4 and the lower fixed frame 5, the upper fixed frame 3, the middle fixed frame 4 and the lower fixed frame 5 are successively installed on the top, middle and bottom of the two support columns 1 from top to bottom, and the upper fixed frame 3, the middle fixed frame 4 Set in parallel with the lower fixed frame 5, a plurality of first connecting rods 6 are arranged between the upper fixed frame 3, the middle fixed frame 4 and the lower fixed frame 5; wherein, the upper fixed frame 3, the middle fixed frame 4 and the lower fixed frame 5 is a hexagonal frame composed of second connecting rods 7 connected end to end in sequence, and the second connecting rods 7 are flexibly connected; the first supporting plate 8 is arranged on the lower fixed frame 5 , one side of the first supporting plate 8 is hinged with one side of the lower fixing frame 5, and the opposite side of the first supporting plate 8 can be freely overlapped on one side of the lower fixing frame 5; the second supporting plate 9. The second supporting plate 9 is set on the middle fixing frame 4, one side of the second supporting plate 9 is hinged to one side of the middle fixing frame 4, and the opposite side of the second supporting plate 9 can be freely overlapped On one side of middle fixed frame 4.

The upper fixed frame 3, the middle fixed frame 4 and the lower fixed frame 5 are all hexagonal frames composed of second connecting rods 7 connected end to end in sequence. The second connecting rods 7 are movably connected so that the user needs to connect the first The supporting plate 8 is pulled up so that the first supporting plate 8 releases the restraint on the expansion of the lower fixing frame 5 , and the user can fold and store the lower fixing frame 5 . In addition, it should be noted that a plurality of first connecting rods 6 are arranged between the upper fixed frame 3, the middle fixed frame 4, and the lower fixed frame 5, so that when the lower fixed frame 5 is folded and stored, the upper fixed frame 3 and the middle fixed frame can be driven. The fixed frame 4 is folded and stored at the same time, so as to complete the folding of the storage frame of the entire trolley; on the contrary, if the user needs to unfold the storage frame of the entire trolley, only the upper fixed frame 3 needs to be unfolded manually, and the upper fixed frame 3 is unfolded at the same time The middle fixed frame 4 and the lower fixed frame 5 will be jointly driven to expand simultaneously. After fully unfolding, the first support plate 8 is put down, so that the frame of the first support bar overlaps with the lower fixed frame 5, and connects with the lower fixed frame 5. The abutment of the first connecting rod 6 on the fixed frame 5 can realize the restraint on the expansion of the fixed frame group and prevent the fixed frame from collapsing. In addition, a second supporting plate 9 is also designed in the present application, and the second supporting plate 9 is installed on the middle fixing frame 4 in the same way as that of the first supporting plate 8 . Utilizing the second support plate 9 can facilitate the user to divide the storage frame of the trolley into two layers according to the types of items. The overall structure is simple and practical, and the folding and unfolding of the trolley is simple and convenient.

According to some embodiments of the present application, a connecting assembly is provided between the wheel 12 and the supporting column 1, the connecting assembly includes a first connecting piece 10 and a second connecting piece 11, the first connecting piece 10 is installed on the bottom of the supporting column 1, and the second connecting piece The two connecting parts 11 are fixed on the connecting shaft of the wheel 12, and the first connecting part 10 and the second connecting part 11 are snap-fitted.

According to some embodiments of the present application, the first connector 10 includes an installation sleeve 10-1 and a connection sleeve 10-2, the installation sleeve 10-1 is socketed with the support column 1, and the two sides of the connection sleeve 10-2 A clamping groove 10-3 is provided, and an elastic pressure rod 10-4 is arranged in the clamping groove 10-3. Movable clamping blocks 11-3 are arranged on both sides of the second connecting piece 11, and the second connecting piece 11 is inserted into Set in the connecting sleeve 10-2 and make the clamping block 11-3 clamp in the clamping groove 10-3 and crimp with the elastic pressure rod 10-4, the elastic pressure rod 10-4 can make the clamping block 11-3 Get out of the clamping slot 10-3.

According to some embodiments of the present application, the second connecting piece 11 includes a hollow insertion rod 11-1, an elastic piece 11-2 and two blocks 11-3, and through holes are provided on both sides of the insertion rod 11-1 , one end of the clamping block 11-3 runs through the through hole, the shrapnel 11-2 is arranged in the inner cavity of the insertion rod 11-1, and the two ends of the shrapnel 11-2 respectively connect with the clamping blocks 11 on both sides of the insertion rod 11-1. -3 end connections.

According to some embodiments of the present application, the opening of the connecting sleeve 10-2 is provided with a guide portion 10-5, which facilitates the installation of the second connecting piece 11 and the first connecting piece 10, and inserts the connecting rod 11-1 into the connecting sleeve The barrel 10-2 acts as a guide.

According to some embodiments of the present application, the lower fixing frame 5 is provided with supporting feet 5-1, which support the trolley and prevent it from falling over.

According to some embodiments of the present application, a pedal 8-1 is provided on the same side frame of the first supporting plate 8 as the wheel 12, and when the user needs to fold the trolley, the user only needs to step on the pedal 8-1 to make the first One end of the support plate 8 can only be lifted up, without the need for the user to bend down.

According to some embodiments of the present application, a connecting hook 8-2 is provided on the side frame of the first support plate 8 opposite to the pedal 8-1, and the connecting hook 8-2 is movable with any first connecting rod 6 Connection, when the user needs to fold the trolley and step on the pedal 8-1 to lift one end of the first supporting plate 8, when the connecting hook 8-2 is active, the connecting hook 8-2 and the first connecting rod 6 Hooked and movable on the first connecting rod 6, and the first connecting rod 6 is respectively connected with each fixed frame, therefore, when the connecting hook 8-2 moves the upper, middle and lower parts by driving the first connecting rod 6 The three fixed frames are driven to complete the folding of the trolley. The whole process does not require the user to bend down, and the operation is easy.

According to some embodiments of the present application, a lock piece 13 is provided on one side of the second supporting rod overlapping the middle fixing frame 4, the lock piece 13 includes a fixing part 13-1 and a clamping part 13-2, and the fixing part 13 -1 is sleeved on the frame of the second supporting plate 9, and the engaging portion 13-2 is engaged with the frame of the upper fixing frame 3, so that the user can choose to use the second supporting plate 9 according to the actual situation.

According to some embodiments of the present application, the handle 2 is covered with an anti-slip sleeve 14 to prevent slipping when the user pulls the handle 2 and pushes the cart.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A cart for facilitating folding, comprising:

the two support columns are arranged in a mirror image mode, wheels are installed at the bottom ends of the two support columns, and the wheels are detachably connected with the support columns;

the two ends of the handle are respectively connected with the tops of the two support columns, and the handle is in buckle type connection with the support columns;

the fixed frame group comprises an upper fixed frame, a middle fixed frame and a lower fixed frame, wherein the upper fixed frame, the middle fixed frame and the lower fixed frame are sequentially arranged at the top, the middle and the bottom of two support columns from top to bottom, the upper fixed frame, the middle fixed frame and the lower fixed frame are mutually parallel,

a plurality of first connecting rods are arranged among the upper fixing frame, the middle fixing frame and the lower fixing frame;

the upper fixing frame, the middle fixing frame and the lower fixing frame are hexagonal frames which are formed by sequentially connecting second connecting rods in an end-to-end mode, and the second connecting rods are movably connected;

the first bearing plate is arranged on the lower fixing frame, one side of the first bearing plate is hinged with one side of the lower fixing frame, and the opposite side of the first bearing plate can be freely lapped on one side of the lower fixing frame;

the second bearing plate is arranged on the middle fixing frame, one side of the second bearing plate is hinged with one side of the middle fixing frame, and one opposite side of the second bearing plate can be freely lapped on one side of the middle fixing frame.

2. The cart of claim 1, wherein a connection assembly is disposed between the wheel and the support column, the connection assembly comprising a first connector and a second connector, the first connector being mounted to the bottom of the support column, the second connector being secured to a connection shaft of the wheel, the first connector being snap-fit with the second connector.

3. The trolley convenient to fold according to claim 2, wherein the first connecting piece comprises a mounting sleeve and a connecting sleeve, the mounting sleeve is sleeved with the supporting column, clamping grooves are formed in two sides of the connecting sleeve, an elastic pressing rod is arranged in the clamping grooves, movable clamping blocks are arranged on two sides of the second connecting piece, the second connecting piece is inserted into the connecting sleeve, so that the clamping blocks are clamped in the clamping grooves and are in compression joint with the elastic pressing rod, and the elastic pressing rod can enable the clamping blocks to be separated from the clamping grooves.

4. A trolley convenient to fold according to claim 3, wherein the second connecting piece comprises an insertion rod with a hollow interior, a spring plate and two clamping blocks, through holes are formed in two sides of the insertion rod, one end of each clamping block penetrates through the through hole, the spring plate is arranged in an inner cavity of the insertion rod, and two ends of the spring plate are respectively connected with end portions of the clamping blocks on two sides of the insertion rod.

5. A folding cart according to claim 3, wherein the connecting sleeve is provided with a guide at the opening.

6. A folding cart according to claim 1, wherein the lower stationary frame is provided with support feet.

7. A folding cart according to claim 1, wherein the first support plate is provided with footrests on the rim on the same side as the wheels.

8. The trolley convenient to fold according to claim 7, wherein a connecting hook is arranged on a frame on one side of the first supporting plate opposite to the pedal, and the connecting hook is movably connected with any one of the first connecting rods.

9. The trolley convenient to fold according to claim 1, wherein the second supporting rod is lapped on one side of the middle fixing frame and is provided with a locking piece, the locking piece comprises a fixing part and a clamping part, the fixing part is sleeved on the frame of the second supporting plate, and the clamping part is clamped with the frame of the upper fixing frame.

10. A folding cart according to claim 1, wherein the handle is provided with an anti-slip sleeve on the outside thereof.

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