CN201769849U

CN201769849U - Foldable Trolley Skeleton

Info

Publication number: CN201769849U
Application number: CN2010202083788U
Authority: CN
Inventors: 马丁
Original assignee: Cyber Industry Co ltd
Current assignee: Cyber Industry Co ltd
Priority date: 2010-05-31
Filing date: 2010-05-31
Publication date: 2011-03-23
Anticipated expiration: 2020-05-31

Abstract

The utility model relates to the technical field of a handcart, in particular to a folding handcart framework, which comprises a front frame, a rear frame and a push handle, wherein the top of the front frame and the bottom of the push handle are respectively hinged with the top of a slide bar, a rear foot tube of the rear frame is sleeved on the bottom of the slide bar in a sliding way, two ends of an upper connecting rod are respectively hinged with the push handle and the rear foot tube, and two ends of a lower connecting rod are respectively hinged with the front frame and the rear foot tube, the front frame, the rear frame and the push handle of the utility model are connected through the slide bar, the upper connecting rod and the lower connecting rod to form a linkage structure which can be synchronously folded or unfolded, and the rear foot tube and a rear wheel group can be driven to slide downwards together in a linkage way when being folded, therefore, the front frame can be completely folded onto the rear frame, the front wheel set can be completely placed in the framework, and the handcart is small in size, small in occupied space and convenient to store and transport after being folded.

Description

The Foldable pushcart skeleton

Technical field:

The utility model relates to the hand barrow technical field, refers in particular to the Foldable pushcart skeleton.

Background technology:

Hand barrow can be placed seat, hand basket or automobile seat on skeleton, be mainly used in for the child and take or place article.Existing hand barrow skeleton includes front vehicle frame, back vehicle frame and handle, the front vehicle frame bottom is equipped with preceding wheels, back bottom of frame is equipped with the back wheels, front vehicle frame and handle are hinged with the back vehicle frame respectively, can with handle and front vehicle frame backward vehicle frame rotate and fold, but this Foldable pushcart skeleton is after folding, preceding wheels can bump with the back wheels is in the same place, front vehicle frame just can not be rotated after turning to certain angle, folding is got up fully, preceding wheels can't be placed into fully the skeleton the inside, and volume is bigger after the hand barrow folding, it is big to take up room, and deposits and transport inconvenience.

The utility model content:

The purpose of this utility model is exactly that the deficiency that exists at prior art and providing can be placed into preceding wheels skeleton the inside, Foldable pushcart skeleton that volume is little after a kind of folding fully.

To achieve these goals, the technical solution adopted in the utility model is: the Foldable pushcart skeleton, it includes front vehicle frame, back vehicle frame and handle, the front vehicle frame bottom is equipped with preceding wheels, back bottom of frame is equipped with the back wheels, back vehicle frame includes two rear foot tubes and the fixed link that is connected two rear foot tubes, front vehicle frame, pass through slide bar between back vehicle frame and the handle, boxed rod, lower link connects to form the serial verb construction that can fold or launch synchronously, the top of front vehicle frame and the bottom of handle are hinged with the top of slide bar respectively, the rear foot tube of back vehicle frame is slidingly located on the bottom of slide bar, the two ends of boxed rod respectively with handle, rear foot tube is hinged, the two ends of lower link respectively with front vehicle frame, rear foot tube is hinged.

Described boxed rod and lower link equal in length.

The top of described slide bar is provided with jointed shaft, and the top of front vehicle frame and the bottom of handle are hinged on the jointed shaft respectively.

Be provided with in the described slide bar and rear foot tube bonded assembly Locking Device.

Described Locking Device includes shift knob, dead man and locking bar, the middle part of dead man and the middle part of locking bar are hinged on the slide bar respectively, shift knob is slidingly arranged on the slide bar, one end of shift knob pushing tow dead man, the other end of dead man contacts an end of locking bar, the other end of locking bar is provided with grab, and rear foot tube is provided with the card post, and the grab hook joint is on the card post.

The utility model beneficial effect is: the Foldable pushcart skeleton that the utility model provides, it includes front vehicle frame, back vehicle frame and handle, the top of front vehicle frame and the bottom of handle are hinged with the top of slide bar respectively, the rear foot tube of back vehicle frame is slidingly located on the bottom of slide bar, the two ends of boxed rod respectively with handle, rear foot tube is hinged, the two ends of lower link respectively with front vehicle frame, rear foot tube is hinged, front vehicle frame of the present utility model, pass through slide bar between back vehicle frame and the handle, boxed rod, lower link connects to form the serial verb construction that can fold or launch synchronously, but interlock drive rear foot tube and back wheels are together to lower slider when folding, back wheels and preceding wheels are staggered mutually, thereby front vehicle frame fully folding to the back vehicle frame on, preceding wheels can be placed into fully the skeleton the inside, volume is little after the hand barrow folding, it is little to take up room, and deposits and convenient transportation.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation in the utility model folding process;

Fig. 3 is the structural representation under the utility model folded state;

Fig. 4 is the structural representation that the utility model Locking Device is in lockup state;

Fig. 5 is the structural representation that the utility model Locking Device is in released state.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is further described, see shown in Fig. 1～5, the utility model includes front vehicle frame 1, back vehicle frame 2 and handle 3, front vehicle frame 1 bottom is equipped with preceding wheels 4, back vehicle frame 2 bottoms are equipped with back wheels 5, back vehicle frame 2 includes two rear foot tubes 21 and the fixed link 22 that is connected two rear foot tubes 21, connects to form the serial verb construction that can fold or launch synchronously by slide bar 6, boxed rod 7, lower link 8 between front vehicle frame 1, back vehicle frame 2 and the handle 3.Wherein, the top of slide bar 6 is provided with jointed shaft 61, the bottom of the top of front vehicle frame 1 and handle 3 is hinged on respectively on the jointed shaft 61, the rear foot tube 21 of back vehicle frame 2 is slidingly located on the bottom of slide bar 6, the two ends of boxed rod 7 are hinged with handle 3, rear foot tube 21 respectively, the two ends of lower link 8 are hinged with front vehicle frame 1, rear foot tube 21 respectively, boxed rod 7 and lower link 8 equal in length.

Be provided with in the slide bar 6 and rear foot tube 21 bonded assembly Locking Devices 9, Locking Device 9 includes shift knob 91, dead man 92 and locking bar 93, the middle part of the middle part of dead man 92 and locking bar 93 is hinged on respectively on the slide bar 6, shift knob 91 is slidingly arranged on the slide bar 6, one end of shift knob 91 pushing tow dead mans 92, the other end of dead man 92 contacts an end of locking bar 93, and the other end of locking bar 93 is provided with grab 931, rear foot tube 21 is provided with card post 211, and grab 931 hook joints are on card post 211.The hand barrow skeleton under deployed condition, grab 931 can automatic hook joint on card post 211, Locking Device 9 is in lockup state, locking is fixed and can not be slided between rear foot tube 21 and the slide bar 6; When needs were folding, with hand PS (Push Switch) button 91, shift knob 91 promoted dead man 92 and rotates, stirring locking bar 93 in dead man 92 rotation processes rotates, make grab 931 break away from card post 211, Locking Device 9 is in released state, and at this moment rear foot tube 21 can be free to slide with respect to slide bar 6.

Connect to form the serial verb construction that can fold or launch synchronously by slide bar 6, boxed rod 7, lower link 8 between front vehicle frame 1 of the present utility model, back vehicle frame 2 and the handle 3, but interlock drive rear foot tube 21 and back wheels 5 were together to lower slider when handle 3 and front vehicle frame 1 folded, back wheels 5 are staggered mutually with preceding wheels 4, thereby front vehicle frame 1 fully folding to the back vehicle frame 2 on, preceding wheels 4 can be placed into fully the skeleton the inside, volume is little after the hand barrow folding, and it is little to take up room, and deposits and convenient transportation.

Certainly, the above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1. Foldable trolley frame, which includes front frame (1), rear frame (2) and push handle (3), front wheel set (4) is installed at the bottom of front frame (1), rear frame ( 2) The rear wheel set (5) is installed at the bottom, and the rear frame (2) includes two rear leg tubes (21) and a fixing bar (22) connecting the two rear leg tubes (21), characterized in that: the front The frame (1), the rear frame (2) and the push handle (3) are connected through the slide bar (6), the upper link (7) and the lower link (8) to form a synchronous folding or unfolding linkage structure, the top of the front frame (1) and the bottom of the push handle (3) are respectively hinged with the top of the slide bar (6), and the rear leg tube (21) of the rear frame (2) is slidably sleeved on the slide bar (6) On the bottom of the upper link (7), the two ends of the upper link (7) are respectively hinged with the push handle (3) and the rear leg tube (21), and the two ends of the lower link (8) are respectively connected with the front frame (1), the rear leg tube (21 ) hinged.

2. The frame of the foldable trolley according to claim 1, characterized in that: the upper link (7) and the lower link (8) are equal in length.

3. The folding trolley frame according to claim 1, characterized in that: the top of the slide bar (6) is provided with a hinge shaft (61), the top of the front frame (1) and the push handle (3) The bottom is respectively hinged on the hinge shaft (61).

4. The frame of the foldable trolley according to any one of claims 1-3, characterized in that: the sliding bar (6) is provided with a locking device (9) connected to the rear leg tube (21).

5. The folding trolley frame according to claim 4, characterized in that: the locking device (9) includes a switch button (91), a pull lever (92) and a lock lever (93), and the pull lever (92) ) and the middle part of the lock bar (93) are respectively hinged on the slide bar (6), the switch button (91) is slidably arranged on the slide bar (6), and the switch button (91) pushes one end of the pull bar (92) , the other end of the pull bar (92) touches one end of the lock bar (93), the other end of the lock bar (93) is provided with a hook (931), and the rear leg tube (21) is provided with a post (211), the card The hook (931) is hooked on the post (211).