CN201484459U

CN201484459U - Pin assembly for handcarts

Info

Publication number: CN201484459U
Application number: CN2009201870976U
Authority: CN
Inventors: 张玉焜
Original assignee: MEIKOLONG PRODUCTS (CHINA) CO Ltd
Current assignee: MEIKOLONG PRODUCTS (CHINA) CO Ltd
Priority date: 2009-08-21
Filing date: 2009-08-21
Publication date: 2010-05-26
Anticipated expiration: 2019-08-21

Abstract

The utility model relates to a pin assembly for handcarts, which is used for lapping handcarts in an inserting way. The pin assembly comprises a pin and a pin rod, wherein the pin is connected at a bottom frame and the pin rod is connected on a channel steel rack and is matched with the pin. An inclined surface part, a flat surface part and a vertical surface part are arranged on the internal side of the pin. Between the flat surface part and the vertical surface part is an arc-shaped surface part. Between the flat surface part and the inclined surface part is an intersected surface. The top surface of the pin rod is matched with the flat surface part and the arc-shaped surface part on the internal side of the pin. After handcarts are lapped with each other, the rear handcart lifts the rear wheel of the front handcart off the ground. Thereby, the handcarts can be pushed forward very conveniently and the situation that the handcarts cannot be pushed forward because the handcarts are clamped with each other is avoided.

Description

The pin assembly set that a kind of hand barrow is used

Technical field

The utility model relates to hand barrow, specially refers to pin assembly set used when hand barrow is folded mutually to be inserted.

Background technology

Before the utility model was made, general hand barrow comprised article carrying platform, wheel, push rod and the material carrying basket that is made of under(-)chassis.Because use hand barrow convenient and practical, in large supermarket, airport and warehouse etc. locates that a large amount of application is all arranged.But transporting, store hand barrow and with hand barrow when standby, need insert hand barrow is folded, to save floor occupying area and the space.Insert hand barrow is folded, promote wheel hand barrow is advanced together, take in also very convenient.But owing to the wheel of hand barrow is all advanced on the ground, toward firmly causing hand barrow to block the situation that can't promote mutually.

The utility model content

The technical problems to be solved in the utility model is to overcome deficiency of the prior art, and a kind of pin assembly set of special use is provided.Between hand barrow during mutually folded inserting, the wheel of front truck is lifted built on stilts, so that many folded backs that plug together of hand barrows are carried out very convenient.

The utility model is to realize by following technical measures.The pin assembly set that a kind of hand barrow is used comprises the pin on the under(-)chassis that is connected the hand barrow article carrying platform, the pin bar that is connected on the channel-section steel frame in the under(-)chassis and cooperatively interacts with pin.

There is position, an inclined-plane inboard of described pin, a position, a plane and a vertical surface position.

Between position, described plane and the described vertical surface position is the arc surface position, is cross surface mutually between position, described plane and the position, described inclined-plane.

The position, described plane of the end face of described pin bar and the inboard of described pin, described arc surface position cooperatively interacts.

With hand barrow is folded mutually when inserting, enforce the back car at needs, insert it in the front truck.The inclined-plane position of the pin bar of back car by the front truck pin is inserted on the position at the position, plane of front truck pin and arc surface position, and the pin of front truck and the pin bar of back car cooperatively interacted.Like this, the rear portion of front truck is lifted, the trailing wheel built on stilts; After front truck was lifted, the position, plane of front truck pin was shelved on above the pin bar of back car; The vertical position perpendicular with the position, plane then stops front car and rear car to be done relative to movable---and front truck can not continue to move backward, and back car can not continue to move forward yet.

After the utility model adopted abovementioned technology, because hand barrow is folded when inserting mutually, the trailing wheel of front truck was lifted and built on stilts, carries out very convenient.Some folded mutually the inserting of hand barrow can can't not promote owing to blocking mutually.

Description of drawings

Fig. 1 is the scheme drawing of the pin among the utility model embodiment.

Fig. 2 is the scheme drawing of the pin bar among the utility model embodiment.

Fig. 3 is the scheme of installation of the pin among the utility model embodiment.

Fig. 4 is the A portion enlarged drawing among Fig. 3.

Fig. 5 is the scheme of installation of the pin bar among the utility model embodiment.

Fig. 6 is the B portion enlarged drawing among Fig. 5.

Fig. 7 is the car folded mutually scheme drawing of inserting in front and back among the utility model embodiment.

Fig. 8 is the C portion enlarged drawing among Fig. 7.

Among the figure: 1 is pin, and 1-1 is that position, inclined-plane 2-2 is the position, plane, and 3-3 is the vertical surface position.4-4 is the arc surface position;

2 is the pin bar, and 3 is under(-)chassis, and 4 is the channel-section steel frame, and 5 is front truck, and 6 is the back car.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment: as shown in Figure 1 and Figure 4, the pin assembly set that a kind of hand barrow is used comprises two pins 1 and two pin bars 2.Again as shown in Figures 2 and 3, left and right two pins 1 are connected on the left and right both direction of under(-)chassis 3 of hand barrow article carrying platform.Left and right two pin bars 2 then are connected as Fig. 5 and Fig. 6 on the channel-section steel frame 4 in the under(-)chassis 3.

As shown in Figure 1, there is an inclined-plane position 1-1 inboard of pin 1, a plane position 2-2 and a vertical surface position 3-3.And be arc surface position 4-4 between position, plane 2-2 and the vertical surface position 3-3, be cross surface mutually between position, plane 2-2 and position, the inclined-plane 1-1.By Fig. 7 and Fig. 8 as seen, position, the plane 2-2 of the inboard of the end face of described pin bar 2 and pin 1, arc surface position 4-4 cooperatively interacts.Promptly when pin bar 2 inserted pin 1, position, the plane 2-2 of the inboard of the end face of pin bar 2 and pin 1, arc surface position 4-4 coincide mutually.

With hand barrow is folded mutually when inserting, enforce back car 6 at needs, insert it in the front truck 5.The pin bar 2 of back car 6 is by position, the inclined-plane 1-1 of the pin 1 of front truck 5, is inserted on the position of position, the plane 2-2 of pin 1 of front truck 5 and arc surface position 4-4, and the pin 1 of front truck 5 and the pin bar 2 of back car 6 are cooperatively interacted.Like this, the rear portion of front truck 5 is lifted, the trailing wheel built on stilts; After front truck 5 was lifted, position, the plane 2-2 of the pin 1 of front truck 5 was shelved on above the pin bar 2 of back car 6; The vertical position 3-3 perpendicular with position, plane 2-2 then stops front truck 5 and back car 6 to be done relative to movable---and front truck 5 can not continue to move backward, and back car 6 can not continue to move forward yet.Hand barrow after folded the inserting, the trailing wheel of front truck 5 is lifted and built on stilts, carries out very convenient.Some folded mutually the inserting of hand barrow can can't not promote owing to blocking mutually.

Above-described only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.

Claims

1. pin assembly set that hand barrow is used, it is characterized in that: comprise the pin (1) on the under(-)chassis (3) that is connected the hand barrow article carrying platform, the pin bar (2) that is connected that channel-section steel frame (4) in the under(-)chassis (3) is gone up and cooperatively interacts with pin (1).

2. the pin assembly set that a kind of hand barrow according to claim 1 is used is characterized in that: there is position, an inclined-plane (1-1) inboard of described pin (1), a position, a plane (2-2) and a vertical surface position (3-3).

3. the pin assembly set that a kind of hand barrow according to claim 2 is used, it is characterized in that: for arc surface position (4-4), be cross surface mutually between position, described plane (2-2) and the position, described inclined-plane (1-1) between position, described plane (2-2) and the described vertical surface position (3-3).

4. the pin assembly set that a kind of hand barrow according to claim 1 is used is characterized in that: the position, described plane (2-2) of the inboard of the end face of described pin bar (2) and described pin (1), described arc surface position (4-4) cooperatively interacts.