StrollerTechnical field
The present invention relates to a kind of stroller more particularly to a kind of strollers that push rod is capable of reversing.
Background technique
For storage with it is easy to carry, stroller is mostly foldable, and most stroller only can be towards oneDirection is carried out, i.e., people carries out before the rear direction of cart, cannot observe the shape of infant at any time during implementation in this wayCondition is not easy to implementation personnel and interacts with infant.
Also occurs many push rods stroller capable of reversing on the market at present, push rod can also be overturn to cartSide, so that cart is carried out towards children in the leading flank of cart in people station.Existing push rod stroller capable of reversing, can be realizedThe structure to commutate before and after push rod is varied, most of to there are problems that causing stroller frame complicated integral structure, influences vehicleThe control of the folding operation and production cost of frame.
Summary of the invention
The object of the present invention is to provide a kind of strollers that new structural push rod is capable of reversing.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of stroller, including with unfolded stateStroller frame, the wheel assembly set on the stroller frame bottom, and for locking in the deployed state the stroller frameLocking mechanism, the stroller frame includes two side stands for being divided into the left and right sides, and the side stand of every side includesThe top of front support rod, back stay and the push rod respectively vertically extended, the back stay is rotationally connected by first axleOn the front support rod, the lower part of the top of the front support rod and the push rod is rotatablely connected by the second axis, the first axleAxial line and the axial line of second axis be parallel to each other or collinearly extend,
The side stand of every side further includes the connection component set between the front support rod and the back stay, and can onLower slider be set to the front support rod on sliding part, provided at one is connected on the push rod and the other end is pivotally connected in instituteThe upper connecting rod on sliding part is stated, when the stroller frame is in unfolded state, the push rod extends with updip from front to backJust push away that operating position and updip from back to front extend counter push away operating position.
Preferably, the connection component includes the lower link extended along the longitudinal direction, and the back pivot of the lower link connectsIt connects on the back stay, the front of the lower link is pivotally connected on the sliding part.
Further, the lower part of the upper connecting rod is pivotally connected on the sliding part by third axis, the lower linkFront be pivotally connected on the sliding part by the 4th axis, the axial line of the axial line of the third axis and the 4th axisIt is parallel to each other.
As another embodiment, the lower part of the upper connecting rod is pivotally connected on the sliding part by third axis,The front of the lower link is pivotally connected on the sliding part by the 4th axis, the axial line of the third axis and the described 4thThe axial line of axis collinearly extends.
Further, crank block is constituted between the front support rod, the back stay, the lower link and the sliding partMechanism constitutes another slider-crank mechanism between the front support rod, the push rod, the upper connecting rod and the sliding part.
Further, the upper connecting rod of two sides and lower link be respectively positioned in left-right direction two sides the front support rod, afterBetween strut and push rod.
Preferably, when the push rod be in it is described just push away operating position when, the front support rod is with the upper connecting rod along sameLength direction extends；When the push rod be in it is described it is counter push away operating position when, the upper connecting rod is located at the front side of second axis.
Preferably, when the stroller frame is in folded state, the front support rod and the back stay are along the longitudinal directionIt collapses, the push rod overturns and collapses in the front side of the front support rod.
Preferably, the locking mechanism includes set on the lock between the front support rod and the push rod for locking the twoDetermine joint, the push rod is locked in and described just pushing away operating position and counter push away under operating position by the locking joint.
Further, the side stand of every side further includes handle, and the lower pivot of the handle is connected to the push rodTop, between the push rod and the handle be equipped with handle locking piece, the handle relatively the push rod overturn when linkage solutionThe lock locking joint.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages: baby of the inventionCart, rod piece quantity is few, and structure is simple, efficiently solves the problems, such as that commutation cart structure is complicated and production cost is higher；Meanwhile on the stroller, expansion and the folding operation of the switching operation and stroller frame of push rod are all very convenient, after foldingThe volume of stroller frame is also very compact, facilitates the routine use of user.
Detailed description of the invention
Attached drawing 1 is the perspective view under the stroller unfolded state of the embodiment of the present invention 1；
Attached drawing 2 is the side view under the stroller unfolded state of embodiment 1, and wherein push rod is in and just pushes away operating position；
Attached drawing 3 is the side view under the stroller unfolded state of embodiment 1, and wherein push rod is in counter and pushes away operating position；
Attached drawing 4 is side view of the stroller of embodiment 1 when handle folds；
Attached drawing 5 is in side view when semi-collapsed condition for the stroller of embodiment 1；
Attached drawing 6 is in side view when folded state for the stroller of embodiment 1；
Attached drawing 7 is the perspective view under the stroller unfolded state of embodiment 2；
Attached drawing 8 is the side view under the stroller folded state of embodiment 2；
Wherein: 100, side stand；101, front rail；210, rear transverse rod；
1, front support rod；2, back stay；3, push rod；4, sliding part (sliding sleeve)；5, upper connecting rod；6, lower link；7, handle；8, locking is closedSection；9, handle locking piece；11, first axle；12, the second axis；13, third axis；14, the 4th axis；15, the 5th axis；16, the 6th axis；10, front-wheel；20, rear-wheel.
Specific embodiment
Technical solution of the present invention is further elaborated in the following with reference to the drawings and specific embodiments.
Embodiment 1
Referring to Fig. 1 to stroller shown in fig. 6 comprising stroller frame with unfolded state and folded state, set on pushing awayThe wheel assembly of vehicle carriage bottom, and for the locking mechanism by stroller frame locking in the deployed state.The stroller frame packetTwo side stands 100 for being divided into the left and right sides are included, the side stand 100 of every side includes the preceding branch respectively vertically extendedBar 1, back stay 2 and push rod 3, wheel assembly include the rear-wheel set on the front-wheel 10 of 1 lower part of front support rod and set on 2 lower part of back stay20。
Shown in Figure 2, the top of back stay 2 is rotationally connected on front support rod 1 by first axle 11, front support rod 1The lower part of top and push rod 3 is rotatablely connected by the second axis 12, first axle 11 and the second axis 12 be parallel to each other for axial line twoRoot axis, and first axle 11 is connected to the top of the second axis 12 on front support rod 1.It in other examples, can also be by firstAxis 11 is set as axial line with the second axis 12 and collinearly extends.
The side stand 100 of every side further includes the connection component being set between front support rod 1 and back stay 2, and can be upper and lowerSlidably it is set to the sliding part 4 on front support rod 1, the upper connecting rod 5 between push rod 3 and sliding part 4, wherein sliding part 4 usesIt is the sliding sleeve being slidably set on front support rod 1, one end of upper connecting rod 5 is pivotally connected on sliding sleeve 4 by third axis 13, onThe other end of connecting rod 5 is pivotally connected on push rod 3 by the 5th axis 15.
Connection component is mainly used for opposite expansion and folding between front support rod 1 and back stay 2, when stroller frame is in exhibitionUnder open state, connection component is supported between front support rod 1 and back stay 2 and front-wheel 10 is opened along the longitudinal direction with rear-wheel 20And it is supported in ground, when stroller frame folds, before being made by connection component drive front support rod 1 and the relative rotation of back stay 2Wheel 10 is drawn close along the longitudinal direction with rear-wheel 20.Referring to shown in Fig. 1 to Fig. 3, in the present embodiment, which includes along front and backTo the lower link 6 of extension, the front of the lower link 6 is pivotally connected on sliding sleeve 4 by the 4th axis 14, and the rear portion of lower link 6 is logicalThe 6th axis 16 is crossed to be pivotally connected on back stay 2.Herein, the 4th axis 14 and third axis 13 are two that axial line is parallel to each otherAxis, and third axis 13 is located at the top of the 4th axis 14 on sliding sleeve 4.
In this way, constituting crank block between front support rod 1, back stay 2, lower link 6 and sliding sleeve 4 on the side stand 100 of every sideMechanism constitutes another slider-crank mechanism between front support rod 1, push rod 3, upper connecting rod 5 and sliding sleeve 4.Locking mechanism includes before being set toLocking joint 8 between strut 1 and push rod 3 for locking the two, when which locks, in the side stand 100 of each sideThe opposite locking of front support rod 1, back stay 2 and push rod 3.
Referring to FIG. 1 to FIG. 4, when stroller frame is in unfolded state, front support rod 1 and rear branch in each side side stand 100Bar 2 is opposite to be unfolded and is supported in ground by front-wheel 10 and rear-wheel 20, is formed between front support rod 1, back stay 2 and lower link 6 steadyFixed triangular structure, push rod 3 just push away operating position with what updip from front to back as shown in Figure 2 extended, and such as Fig. 3 instituteThe counter of the extension of updip from back to front shown pushes away operating position, and locking joint 8 locks and each side side stand is made to be locked in expansion shapeUnder state, and push rod 3 is locked to and above-mentioned just push away operating position or counter pushes away operating position.
Referring to shown in Fig. 1, Fig. 2, when push rod 3, which is in, just pushes away operating position, front support rod 1 is with upper connecting rod 5 substantially along sameLength direction extends；When push rod 3 be in it is counter push away operating position when, the overturning of upper connecting rod 5 and is supported to the front positioned at the second axis 12Between sliding sleeve 4 and push rod 3.Stroller frame is under unfolded state, and user needs to be converted to push rod 3 by just pushing away operating positionIt is counter to push away when being converted between operating position, it is only necessary to locking joint 8 first be unlocked, then overturn push rod 3 forward, on push rod 3 drivesFor connecting rod 5 to correspondingly preceding overturning, sliding sleeve 4 is then correspondingly upper and lower by a small margin along front support rod 1 during push rod 3 is overturn forwardSliding locks joint 8 and relocks, just stroller frame is locked so that push rod 3 and upper connecting rod 5 are successfully overturn to front sideIt is fixed, and push rod 3 is locked to and counter pushes away operating position.Vice versa.
Referring to shown in each attached drawing, each side side stand 100 further includes handle 7, and the lower pivot of the handle 7 is connected to push rod 3Top, between push rod 3 and handle 7 be equipped with handle locking piece 9, when handle locking piece 9 unlock and handle 7 with respect to push rod 3 overturnWhen linkage of unlocking lock joint 8.In the present embodiment, two sides handle 7 is wholely set and in downward opening U-shaped, stroller frameIt further include the front rail 101 between 1 lower part of two sides front support rod and the rear transverse rod 201 between 2 lower part of two sides back stay,The upper connecting rod 5 and lower link 6 of two sides are in left-right direction between the front support rod 1 of two sides, back stay 2 and push rod 3.
It is shown in Figure 4 when needing to fold stroller frame, first handle locking piece 9 is unlocked, and handle 7 is oppositePush rod 3 overturns and collapses in the rear side of push rod 3；The folding of handle 7 to lock joint 8 by linkage of unlocking, at this point, referring to Fig. 5It is shown, it drives push rod 3 to overturn forward, upper connecting rod 5 can be made to overturn therewith and drive sliding sleeve 4 along 1 slide downward of front support rod, thusFront support rod 1 is driven to relatively rotate with back stay 2 and gradually collapse along the longitudinal direction under the action of lower link 6, until folding is completeAt, form structure as shown in Figure 6, under the folded state, vehicle frame be supported in ground jointly by the top of front-wheel 10 and push rod 3 andIt is formed and is supported oneself.
Embodiment 2
Referring to shown in Fig. 7, Fig. 8, the present embodiment and the difference of embodiment 1 are essentially consisted in, in the present embodiment, third axis 13 andThe front of the coaxial setting of four axis 14, the i.e. lower part of upper connecting rod 5 and lower link 6 is rotationally connected to sliding sleeve around same rotary centerlineOn 4.In the stroller frame, push rod 3, which also has, just to be pushed away operating position and counter pushes away operating position, transfer principle and 1 phase of embodimentTogether, the folding principle of stroller frame is also same as Example 1, and details are not described herein again.
To sum up, stroller of the invention, rod piece quantity is few, and structure is simple, efficiently solves commutation cart structureThe complicated and higher problem of production cost；Meanwhile on the stroller, the expansion of the switching operation and stroller frame of push rod 3 withFolding operation is all very convenient, and the volume of stroller frame is also very compact after folding, facilitates the routine use of user.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the artScholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present inventionEquivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.