CN201849512U

CN201849512U - Folding frame of handcart

Info

Publication number: CN201849512U
Application number: CN201020558193XU
Authority: CN
Inventors: 许永煌
Original assignee: O'sk Baby & Children Products (fujian) Co Ltd
Current assignee: O'sk Baby & Children Products (fujian) Co Ltd
Priority date: 2010-10-11
Filing date: 2010-10-11
Publication date: 2011-06-01
Anticipated expiration: 2020-10-11

Abstract

The utility model relates to a folding frame of a handcart, relating to the technical field of a handcart, and comprising a back foot stand, a front foot stand, a front supporting rod and a handle which are orderly hinged together to form a four-connection rod mechanism, wherein the bottom of the handle is equipped with an upper joint, the position of the back foot stand which is close to the top part is equipped with a lower joint, the upper joint is hinged with the lower joint, a locking device which is capable of locking the upper joint and the lower joint is connected between the upper joint and the lower joint; when the handcart is spread, the upper joint and the lower joint can be locked by means of the locking device, so that the frame of the handcart is locked at a spread state. The folding frame of a handcart provided by the utility model has the advantages that the folding frame of handcart is safe and reliable, the spreading and folding of the folding frame of handcart are convenient, the front frame and the handle can be completely folded on the back frame, the volume of the handcart which is folded is small, the space is small and the storage and transportation of the handcart which is folded are convenient.

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, strut bar and handgrip, the front vehicle frame bottom is equipped with preceding wheels, back bottom of frame is equipped with the back wheels, and front vehicle frame and handgrip are hinged with the back vehicle frame respectively, can with handgrip and front vehicle frame backward vehicle frame rotate and fold.But this Foldable pushcart skeleton does not have corresponding locking mechanism after launching and folding, break away from deployed condition and folded state easily, and safety is low, launch and folding inconvenience, and volume is bigger after the hand barrow folding, and 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 utilized Locking Device locking, safe and reliable Foldable pushcart skeleton after a kind of the expansion.

To achieve these goals, the technical solution adopted in the utility model is: the Foldable pushcart skeleton, it includes handgrip, preceding foot rest, rear leg and strut bar, be hinged successively between rear leg, preceding foot rest, strut bar and the handgrip and form four-bar linkage together, the bottom of handgrip is provided with upper joint, rear leg is provided with hypozygal near the position at top, and upper joint and hypozygal are hinged, and being connected with between upper joint and the hypozygal can be with the Locking Device of upper joint and hypozygal locking.

Described Locking Device includes the joint slide block, joint gear, the gear stage clip, steel wire and vehicle folding pull-handle return the vehicle to the garage and knock off, be combined to form spatial accommodation between upper joint and the hypozygal, the joint slide block, joint gear, the gear stage clip is successively set in this spatial accommodation, the inboard of upper joint is provided with surface groove, the joint slide block is provided with the inclined-plane with the surface groove corresponding matching, the inboard of upper joint and hypozygal binding end respectively offers corresponding gear grooved, the two side ends of the tooth of joint gear card respectively is located in the gear grooved of upper joint and hypozygal, vehicle folding pull-handle is slidingly arranged on the handgrip, the end of steel wire of returning the vehicle to the garage and knock off connects the joint slide block, and its other end is connected with vehicle folding pull-handle.

Described vehicle folding pull-handle is hollow tubular structure, and vehicle folding pull-handle is slidingly located on the handgrip.

Described Locking Device also includes the button that returns the vehicle to the garage and knock off, button spring, the button that returns the vehicle to the garage and knock off is hinged on the vehicle folding pull-handle, handgrip is provided with trip near the position of vehicle folding pull-handle, and button spring is located between the end and vehicle folding pull-handle of the button that returns the vehicle to the garage and knock off, the other end of the button that returns the vehicle to the garage and knock off and trip clamping.

Respectively be provided with corresponding spacing plane on described upper joint and the hypozygal.

Described rear leg is provided with the copper sheathing that returns the vehicle to the garage and knock off, and is fixed with on the upper joint to be used to collude to block returning the vehicle to the garage and knock off of the copper sheathing that returns the vehicle to the garage and knock off and collude.

The utility model beneficial effect is: the Foldable pushcart skeleton that the utility model provides, it includes to be hinged successively and forms the rear leg of four-bar linkage together, preceding foot rest, strut bar and handgrip, the bottom of handgrip is provided with upper joint, rear leg is provided with hypozygal near the position at top, upper joint and hypozygal are hinged, being connected with between upper joint and the hypozygal can be with the Locking Device of upper joint and hypozygal locking, after hand barrow launches, can utilize Locking Device with upper joint and hypozygal locking, thereby the hand barrow skeleton is locked in deployed condition, safe and reliable, launch and folding convenient, and front vehicle frame, folding is to the vehicle frame of back fully for handgrip, and 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 decomposing schematic representation of the utility model Locking Device.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is further described, see shown in Fig. 1～2, the utility model includes U type handgrip 1, preceding foot rest 2, rear leg 3 and strut bar 4, be hinged successively between rear leg 3, preceding foot rest 2, strut bar 4 and the handgrip 1 and form four-bar linkage together, the bottom of handgrip 1 is provided with upper joint 5, rear leg 3 is provided with hypozygal 6 near the position at top, and upper joint 5 is hinged with hypozygal 6, respectively is provided with corresponding spacing plane 8 on upper joint 5 and the hypozygal 6.Rear leg 3 is provided with the copper sheathing 9 that returns the vehicle to the garage and knock off, and is fixed with on the upper joint 5 to be used to collude to block the returning the vehicle to the garage and knock off of copper sheathing 9 of returning the vehicle to the garage and knock off and collude 10.

Be connected with the Locking Device 7 that upper joint 5 and hypozygal 6 can be locked or unclamped between upper joint 5 and the hypozygal 6.Locking Device 7 includes joint slide block 71, joint gear 72, gear stage clip 73, the steel wire 74 that returns the vehicle to the garage and knock off, vehicle folding pull-handle 75, the button 76 that returns the vehicle to the garage and knock off, button spring 77, be combined to form spatial accommodation between upper joint 5 and the hypozygal 6, joint slide block 71, joint gear 72, gear stage clip 73 are successively set in this spatial accommodation, upper joint 5, joint slide block 71, joint gear 72, gear stage clip 73, hypozygal 6 are by closing-up together, joint slide block 71 can be in upper joint 5 inner rotation with along endwisely slipping, and joint gear 72 can be along endwisely slipping.The inboard of upper joint 5 is provided with surface groove 51, joint slide block 71 is provided with the inclined-plane 711 with surface groove 51 corresponding matching, joint slide block 71 can slide on the surface groove 51 of upper joint 5 the insides by inclined-plane 711, the inboard of upper joint 5 and hypozygal 6 binding ends respectively offers corresponding gear grooved 78, the two side ends of the tooth of joint gear 72 card respectively is located in the gear grooved 78 of upper joint 5 and hypozygal 6, joint gear 72 can slide between upper joint 5 and hypozygal 6, when the tooth of joint gear 72 is stuck in the gear grooved 78 of upper joint 5 and hypozygal 6 simultaneously, can't be relatively rotated by joint gear 72 lockings between upper joint 5 and the hypozygal 6, when in the gear grooved 78 of tooth card at hypozygal 6 of joint gear 72, can not relatively not rotated between upper joint 5 and the hypozygal 6 by joint gear 72 lockings.Gear stage clip 73 is located between joint gear 72 and the hypozygal 6, and joint gear 72 is automatically reset.

Vehicle folding pull-handle 75 is hollow tubular structure, and vehicle folding pull-handle 75 is slidingly located on the handgrip 1, and an end of the steel wire 74 that returns the vehicle to the garage and knock off connects joint slide block 71, and its other end is connected with vehicle folding pull-handle 75.The button 76 that returns the vehicle to the garage and knock off is hinged on the vehicle folding pull-handle 75, and handgrip 1 is provided with trip 11 near the position of vehicle folding pull-handle 75, and button spring 77 is located between the end and vehicle folding pull-handle 75 of the button 76 that returns the vehicle to the garage and knock off, the other end of the button 76 that returns the vehicle to the garage and knock off and trip 11 clampings.

Principle of work of the present utility model is: press the button 76 that returns the vehicle to the garage and knock off with an external force, the trip 11 that the button 76 that returns the vehicle to the garage and knock off this moment breaks away from the handgrip 1, vehicle folding pull-handle 75 can be pulled upwardly, driving joint slide block 71 by the steel wire 74 that returns the vehicle to the garage and knock off rotates, joint slide block 71 outwards moves along the surface groove 51 of upper joint 5, joint slide block 71 outwards promotes joint gear 72, the elastic force that joint gear 72 overcomes gear stage clip 73 outwards moves and breaks away from the gear grooved 78 of upper joint 5, this moment, handgrip 1 rotated along rear leg 3 pivot point, foot rest 2 folded and draws close before handgrip 1 drove by strut bar 4, collude 10 when returning the vehicle to the garage and knock off and block returning the vehicle to the garage and knock off during copper sheathing 9 on the rear leg 3, car load folds and puts in place;

Collude 10 outwards cocked when returning the vehicle to the garage and knock off with an external force, return the vehicle to the garage and knock off and collude 10 copper sheathings 9 that return the vehicle to the garage and knock off that break away from the rear leg 3, handgrip 1 upwards rotates along rear leg 3 pivot point, handgrip 1 is by foot rest 2 before strut bar 4 pull-ups, when collide in the spacing plane 8 of upper joint 5 and hypozygal 6, start point is maximum, this moment, joint gear 72 slided in the gear grooved 78 of upper joint 5 at next end of effect of gear stage clip 73, joint gear 72 promotes joint slide block 71 and moves inwards, joint slide block 71 moves downward by the steel wire 74 pulling vehicle folding pull-handles 75 that return the vehicle to the garage and knock off, the button 76 that returns the vehicle to the garage and knock off automatically resets under the effect of button stage clip, the button 76 that returns the vehicle to the garage and knock off blocks the gear on the permanent seat, handgrip 1 is fixed and can't moves, and vehicle frame launches fully.

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 pushcart skeleton, it includes handgrip (1), preceding foot rest (2), rear leg (3) and strut bar (4), it is characterized in that: be hinged successively between described rear leg (3), preceding foot rest (2), strut bar (4) and the handgrip (1) forms four-bar linkage together, the bottom of handgrip (1) is provided with upper joint (5), rear leg (3) is provided with hypozygal (6) near the position at top, upper joint (5) is hinged with hypozygal (6), and being connected with between upper joint (5) and the hypozygal (6) can be with the Locking Device (7) of upper joint (5) with hypozygal (6) locking.

2. Foldable pushcart skeleton according to claim 1, it is characterized in that: described Locking Device (7) includes joint slide block (71), joint gear (72), gear stage clip (73), steel wire (74) and vehicle folding pull-handle (75) return the vehicle to the garage and knock off, be combined to form spatial accommodation between upper joint (5) and the hypozygal (6), joint slide block (71), joint gear (72), gear stage clip (73) is successively set in this spatial accommodation, the inboard of upper joint (5) is provided with surface groove (51), joint slide block (71) is provided with the inclined-plane (711) with surface groove (51) corresponding matching, the inboard of upper joint (5) and hypozygal (6) binding end respectively offers corresponding gear grooved (78), the two side ends of the tooth of joint gear (72) card respectively is located in the gear grooved (78) of upper joint (5) and hypozygal (6), vehicle folding pull-handle (75) is slidingly arranged on the handgrip (1), the end of steel wire (74) of returning the vehicle to the garage and knock off connects joint slide block (71), and its other end is connected with vehicle folding pull-handle (75).

3. Foldable pushcart skeleton according to claim 2 is characterized in that: described vehicle folding pull-handle (75) is hollow tubular structure, and vehicle folding pull-handle (75) is slidingly located on the handgrip (1).

4. Foldable pushcart skeleton according to claim 2, it is characterized in that: described Locking Device (7) also includes the button that returns the vehicle to the garage and knock off (76), button spring (77), the button (76) that returns the vehicle to the garage and knock off is hinged on the vehicle folding pull-handle (75), handgrip (1) is provided with trip (11) near the position of vehicle folding pull-handle (75), button spring (77) is located between the end and vehicle folding pull-handle (75) of the button that returns the vehicle to the garage and knock off (76), the other end of the button that returns the vehicle to the garage and knock off (76) and trip (11) clamping.

5. Foldable pushcart skeleton according to claim 1 is characterized in that: respectively be provided with corresponding spacing plane (8) on described upper joint (5) and the hypozygal (6).

6. according to any described Foldable pushcart skeleton of claim 2-5, it is characterized in that: described rear leg (3) is provided with the copper sheathing that returns the vehicle to the garage and knock off (9), is fixed with on the upper joint (5) to be used to collude to block returning the vehicle to the garage and knock off of the copper sheathing that returns the vehicle to the garage and knock off (9) and collude (10).