CN107351887B

CN107351887B - Folding handcart

Info

Publication number: CN107351887B
Application number: CN201710659171.9A
Authority: CN
Inventors: 卢永华
Original assignee: Foshan Huacantong Medical Equipment Co ltd
Current assignee: Foshan Huacantong Medical Equipment Co ltd
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2023-06-30
Anticipated expiration: 2037-08-04
Also published as: CN107351887A

Abstract

The folding handcart comprises a handle, casters and a support, wherein a hinged pressing type pressing block is arranged on the handle, one end of a guy cable is connected with the pressing block, the other end of the guy cable is connected with one end of a sliding block for braking the casters, and the sliding block is arranged in the support in a sliding manner; the handle is connected with the support through a middle connecting piece, and the inhaul cable passes through the middle connecting piece. The handle is provided with an assembly groove for accommodating the pressing block, one end of the pressing block is hinged in the assembly groove through a first pin shaft, the handle is also provided with a guide hole, and the inhaul cable penetrates through the guide hole. The assembly groove is internally provided with a second spring, one end of the second spring is in pressure connection with the inner wall of the assembly groove, and the other end of the second spring is in pressure connection with the side surface of the middle part of the pressing block. The other end of briquetting is provided with first pilot hole, and the one end cartridge of cable is in first pilot hole. The handle is also provided with a button with a reset spring. The invention has the characteristics of flexible operation, safety and reliability.

Description

Folding handcart

Technical Field

The present invention relates to a folding cart.

Background

Chinese patent document No. CN 103029730a discloses a cart folding mechanism on 10/04/2013, the cart at least comprising: a front wheel set; a rear wheel set; the folding mechanism includes: the connecting rod is connected between the front wheel set and the rear wheel set; the first connecting rod and the second connecting rod are respectively hinged with one end of the first connecting rod, the carrier is hinged with the other end of the first connecting rod, the front rod is hinged with the other end of the second connecting rod, the bottom connecting rod is hinged with the bottom end of the front rod, the carrier is hinged with the front rod, and the other end of the bottom connecting rod is hinged with the connecting rod or is hinged with a shaft lever in the front wheel set; the folding control mechanism is used for controlling the folding state to be kept after the front rod, the carrier, the first connecting rod, the second connecting rod and the bottom connecting rod are interlocked and folded together.

Disclosure of Invention

The invention aims to provide a folding handcart which is flexible to operate, so as to overcome the defects in the prior art.

The folding handcart designed according to the purpose comprises a handle and casters, and is structurally characterized by further comprising a support, wherein a hinged pressing type pressing block is arranged on the handle, one end of a guy cable is connected with the pressing block, the other end of the guy cable is connected with one end of a sliding block for braking the casters, and the sliding block is arranged in the support in a sliding manner; the handle is connected with the support through a middle connecting piece, and the inhaul cable passes through the middle connecting piece.

Further, be provided with the assembly groove that is used for holding the briquetting on the handle, the one end of briquetting articulates at the assembly inslot through first round pin axle, still is provided with the guide hole on the handle, and the cable passes the guide hole.

Further, a second spring is arranged in the assembly groove, one end of the second spring is in pressure connection with the inner wall of the assembly groove, and the other end of the second spring is in pressure connection with the side face of the middle part of the pressing block.

Further, the other end of briquetting is provided with first pilot hole, and the one end cartridge of cable is in first pilot hole.

Further, the handle is also provided with a button with a reset spring, the side face of the pressing block is provided with a limit groove, and the button extends into the assembly groove and is inserted into the limit groove.

The folding handcart further comprises a seat cushion with a backrest and a shopping basket, wherein the seat cushion is arranged below the handle, the button is positioned on the inner side of the handle, and the shopping basket is arranged below the seat cushion.

Further, a hinged cam is arranged in the support, the other end of the inhaul cable is connected with one end of the cam, one end of the sliding block abuts against the middle part or the other end of the cam, and one end of the sliding block abuts against the caster.

Further, a cavity for accommodating rotation of the cam and a guide chute for sliding of the sliding block are arranged in the support, and the cavity is communicated with the guide chute; the middle part of the cam is hinged in the cavity through a second pin shaft, one end of the cam is provided with a second assembly hole, and the other end of the inhaul cable extends into the cavity and is clamped in the second assembly hole.

Further, be provided with the location spout on the slider, the reference column passes location spout and cavity in proper order, and first spring sets up in the location spout, and the one end crimping of first spring is on the inner wall of location spout, and the other end crimping of first spring is on the reference column.

The handle is provided with a hinged pressing type pressing block, one end of a inhaul cable is connected with the pressing block, the other end of the inhaul cable is connected with one end of a sliding block for braking the caster, and the sliding block is arranged in the support in a sliding manner; the handle is connected with the support through a middle connecting piece, and the inhaul cable passes through the middle connecting piece; through pressing the briquetting, just pull the cable through the briquetting to drive slider braking truckle, thereby realize braking truckle, the operation is fairly nimble.

The invention is provided with a cavity for accommodating the rotation of the cam and a guide chute for sliding of the slide block in the support, wherein the cavity is communicated with the guide chute; the middle part of cam articulates in the cavity through the second round pin axle, and the one end of cam is provided with the second pilot hole, and the other end of cable stretches into the cavity and clamps in the second pilot hole, through setting up the cam between cable and slider, and the cam plays the effect of similar lever to alleviate the degree of exerting oneself when pressing the briquetting, improve the travelling comfort of this product.

The handle is also provided with a button with a reset spring, the side surface of the pressing block is provided with a limit groove, and the button extends into the assembly groove and is inserted into the limit groove; after the brake truckle is realized to the briquetting is pressed, when pressing the button again, can carry out the position locking to the briquetting this moment to realize locking truckle, improve the security performance of this product.

In conclusion, the invention has the characteristics of flexible operation, safety and reliability.

Drawings

FIG. 1 is an exploded view of an embodiment of the present invention.

Fig. 2 is a schematic view of the A-A cross section in fig. 1.

Fig. 3 is a schematic front view of the handle.

Fig. 4 is a schematic view of the B-B cross section in fig. 3.

Fig. 5 is a schematic view of the usage state of the present invention.

In the figure: 1 is a handle, 1.1 is a guide hole, 1.2 is an assembly groove, 2 is a support, 2.1 is a cavity, 3 is a button, 4 is a pressing block, 4.1 is a first assembly hole, 4.2 is a limit groove, 5 is a first pin shaft, 6 is a second pin shaft, 7 is a cam, 7.1 is a second assembly hole, 8 is a first spring, 9 is a positioning column, 10 is a sliding block, 10.1 is a positioning sliding groove, 11 is a second spring, 20 is a caster wheel, 21 is an intermediate connecting piece, 22 is a seat cushion, and 23 is a shopping basket.

Detailed Description

The invention is further described below with reference to the drawings and examples.

Referring to fig. 1-5, the folding handcart comprises a handle 1, a caster 20 and a support 2, wherein a hinged pressing type press block 4 is arranged on the handle 1, one end of a guy cable is connected with the press block 4, the other end of the guy cable is connected with one end of a slide block 10 for braking the caster 20, and the slide block 10 is arranged in the support 2 in a sliding way; the handle 1 is connected with the support 2 through the intermediate connecting piece 21, and the stay rope passes through the intermediate connecting piece 21.

In this embodiment, an assembly groove 1.2 for accommodating the pressing block 4 is provided on the handle 1, one end of the pressing block 4 is hinged in the assembly groove 1.2 through a first pin 5, a guide hole 1.1 is also provided on the handle 1, and the inhaul cable passes through the guide hole 1.1.

A second spring 11 is arranged in the assembly groove 1.2, one end of the second spring 11 is in pressure connection with the inner wall of the assembly groove 1.2, and the other end of the second spring 11 is in pressure connection with the side surface of the middle part of the pressing block 4.

The other end of briquetting 4 is provided with first pilot hole 4.1, and the one end cartridge of cable is in first pilot hole 4.1.

The handle 1 is also provided with a button 3 with a reset spring, the side surface of the pressing block 4 is provided with a limit groove 4.2, and the button 3 extends into the assembly groove 1.2 and is inserted into the limit groove 4.2.

The folding handcart is characterized by further comprising a seat cushion 22 with a backrest and a shopping basket 23, wherein the seat cushion 22 is arranged below the handle 1, the button 3 is positioned on the inner side of the handle 1, and the shopping basket 23 is arranged below the seat cushion 22.

The support 2 is internally provided with a hinged cam 7, the other end of the inhaul cable is connected with one end of the cam 7, one end of the sliding block 10 is propped against the middle part or the other end of the cam 7, and one end of the sliding block 10 is propped against the caster 20.

A cavity 2.1 for accommodating rotation of the cam 7 and a guide chute for sliding the sliding block 10 are arranged in the support 2, and the cavity 2.1 is communicated with the guide chute; the middle part of the cam 7 is hinged in the cavity through a second pin shaft 6, one end of the cam 7 is provided with a second assembly hole 7.1, and the other end of the inhaul cable extends into the cavity 2.1 and is clamped in the second assembly hole 7.1.

The sliding block 10 is provided with a positioning sliding groove 10.1, the positioning column 9 sequentially penetrates through the positioning sliding groove 10.1 and the cavity 2.1, the first spring 8 is arranged in the positioning sliding groove 10.1, one end of the first spring 8 is in pressure connection with the inner wall of the positioning sliding groove 10.1, and the other end of the first spring 8 is in pressure connection with the positioning column 9.

In the description of the present invention, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present invention that the device or element referred to must have a specific azimuth configuration and operation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the invention, "at least" means one or more, unless clearly specifically defined otherwise.

In the present invention, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The folding handcart is characterized by further comprising a support (2), wherein a hinged pressing type pressing block (4) is arranged on the handle (1), one end of a guy rope is connected with the pressing block (4), the other end of the guy rope is connected with one end of a sliding block (10) for braking the castor (20), and the sliding block (10) is arranged in the support (2) in a sliding manner; the handle (1) is connected with the support (2) through the middle connecting piece (21), the inhaul cable passes through the middle connecting piece (21), an assembly groove (1.2) for accommodating the pressing block (4) is arranged on the handle (1), one end of the pressing block (4) is hinged in the assembly groove (1.2) through a first pin shaft (5), a guide hole (1.1) is further arranged on the handle (1), the inhaul cable passes through the guide hole (1.1), a button (3) with a reset spring is further arranged on the handle (1), a limit groove (4.2) is arranged on the side face of the pressing block (4), the button (3) stretches into the assembly groove (1.2) and is inserted into the limit groove (4.2), a hinged cam (7) is arranged in the support (2), the other end of the inhaul cable is connected with one end of the cam (7), one end of the sliding block (10) is propped against the middle part or the other end of the cam (7), one end of the sliding block (10) is propped against the trundle (20), a cavity (2) accommodating the cam (7.1) and a sliding chute (2) is communicated with the sliding cavity (1.2); the middle part of cam (7) articulates in the cavity through second round pin axle (6), and the one end of cam (7) is provided with second pilot hole (7.1), and the other end of cable stretches into cavity (2.1) and clamps in second pilot hole (7.1), be provided with second spring (11) in mounting groove (1.2), the one end crimping of this second spring (11) is on the inner wall of mounting groove (1.2), and the other end crimping of second spring (11) is in the middle part side of briquetting (4), the other end of briquetting (4) is provided with first pilot hole (4.1), and the one end clamping of cable is in first pilot hole (4.1).

2. The folding trolley according to claim 1, further comprising a seat cushion (22) with a backrest, the seat cushion (22) being arranged below the handle (1), and a shopping basket (23), the push button (3) being located inside the handle (1), the shopping basket (23) being arranged below the seat cushion (22).

3. The folding handcart according to claim 2, characterized in that the sliding block (10) is provided with a positioning chute (10.1), the positioning column (9) sequentially passes through the positioning chute (10.1) and the cavity (2.1), the first spring (8) is arranged in the positioning chute (10.1), one end of the first spring (8) is in pressure connection with the inner wall of the positioning chute (10.1), and the other end of the first spring (8) is in pressure connection with the positioning column (9).