CN208827911U - A kind of baby carriage vehicle frame convenient for folding - Google Patents

Abstract

The utility model discloses a kind of baby carriage vehicle frames convenient for folding, belong to perambulator field, including front wheel bar, rear wheel bar, handrail, preceding push rod and rear push-rod, the top of preceding push rod and the bottom of handrail are rotatably assorted by linkage, front rod and back link have been respectively articulated in front wheel bar and rear wheel bar, and front rod and back link are hinged, bottom end and the rear wheel bar of preceding push rod are hinged；One end of rear push-rod is hinged with the sliding sleeve being set on back link, and the other end is movably attached to preceding push rod and states the hinge joint between handrail；Sliding sleeve is slided along back link to cooperate the expansion of vehicle frame and fold.It is equipped with locking piece and unlock piece in linkage, U-shaped handrail is equipped between two handrails, the hauling rope for controlling unlock piece release locking piece is equipped in handrail and the inner cavity of U-shaped handrail, U-shaped handrail is equipped with the traction button for affecting hauling rope.Not only meet folded beauty, but also be not susceptible to clamping stagnation, and can realize the folding of vehicle frame by linkage.

Description

A kind of baby carriage vehicle frame convenient for folding

Technical field

The utility model relates to perambulator fields, specifically, being related to a kind of baby carriage vehicle frame convenient for folding.

Background technique

The vehicle frame of existing perambulator is mostly folding structure, and the existing complex linkages shut down, also have more from structure Relatively succinct links type.

Such as notification number be CN201086733Y Chinese patent literature disclose a kind of Pushchair fold dress It sets, Pushchair includes the Suo Qing mechanism of a handle pipe fitting, the first pipe fitting, setting and handle pipe fitting and the first pipe fitting part, And the second pipe fitting of connection and Suo Qing mechanism, Suo Qing mechanism include the fixing seat for being installed on the first tubular top, are installed on handle The rotating seat and an axis bolt of pipe fitting bottom end and one end and fixing seat pivot joint are held to seat and the rotating seat of being fixed with fixation Angle is formed by between pipe fitting and pipe fitting, axis bolt has a limit hole, and folding mechanism further includes actuator, can be sticked in limit The pin rod and a driving member between pin rod and actuator in position hole, actuator are displaced relative to the second pipe fitting, are detached from pin rod In the engaging of limit hole, so that axis bolt can be in handle pipe fitting intrinsic displacement.

The vehicle frame that is mainly characterized by of the prior art includes preceding foot lever, rear foot lever and handrail, and three passes through a Link chain device Structure relatively rotates cooperation, and linkage is either uniaxial mechanism also can have the multiaxis structure of multiple rotation axis；Front foot The folding and expansion of vehicle frame may be implemented in the relative rotation of bar, rear foot lever and handrail, in order to lock folding and unfolded state, Settable locking mechanism on linkage.But in the prior art, even being in the ipsilateral each connecting rod of vehicle frame also has in axial direction Dislocation arrangement, in vehicle frame folding and unfolding there are biggish pinching hidden danger, in addition rear foot bar portion position be difficult to take into account intensity with it is folded Aesthetics.

Separately there is notification number to be that the Chinese patent literature of CN206344865U discloses a kind of folding baby vehicle, including two symmetrical The sub- vehicle frame of arrangement, sub- vehicle frame includes front wheel bar, rear wheel bar, handrail, preceding push rod and rear push-rod, rear wheel bar, front wheel bar, handrail Bar, rear push-rod successively hingedly constitute the first four-bar mechanism of closed loop, are hinged with seat fixed link on rear push-rod；Front wheel bar is with after It takes turns and is equipped with front rod and back link between bar.Front wheel bar, rear wheel bar, back link and front rod successively hingedly constitute the second of closed loop Four-bar mechanism, interlocking bar is equipped between two four-bar mechanisms, and interlocking bar one end connects hinged between front rod and rear two sides Point, the other end and preceding push rod are hinged, are further fixed on the sliding sleeve matched with seat fixed link in the middle part of interlocking bar.When rear wheel bar is with before When the lower supporter of wheel bar composition is fully deployed, since interlocking bar has the power of pushing tow, after front rod and rear two sides can be allowed to haul It takes turns bar and front wheel bar to shrink toward inside, additional support is provided.

Although the folding baby vehicle of the patent avoids pinching hidden danger, but since sliding sleeve is matched with seat fixed link, Vehicle frame folding or when strutting, sliding sleeve is slided along seat fixed link, can be influenced by the seat being mounted in seat fixed link, is easy There is catching phenomenon.

Utility model content

The purpose of this utility model is to provide a kind of baby carriage vehicle frame convenient for folding, has both been met folded flat Whole beauty, and it is not susceptible to clamping stagnation.Meanwhile the folding of vehicle frame can be realized by linkage.

To achieve the goals above, baby carriage vehicle frame convenient for folding provided by the utility model include front wheel bar, Rear wheel bar, handrail, preceding push rod and rear push-rod, the top of preceding push rod and the bottom of handrail are rotatably assorted by linkage, Front rod and back link are respectively articulated in front wheel bar and rear wheel bar, and front rod and back link are hinged, the bottom of preceding push rod End is hinged with rear wheel bar；One end of rear push-rod is hinged with the sliding sleeve being set on back link, and the other end, which is movably attached to, to be pushed forward Bar and state the hinge joint between handrail；Sliding sleeve is slided along back link to cooperate the expansion of vehicle frame and fold.It is equipped in linkage Locking piece and unlock piece, are equipped with U-shaped handrail between two handrails, are equipped in the inner cavity of handrail and U-shaped handrail for controlling solution Latch fitting discharges the hauling rope of locking piece, and U-shaped handrail is equipped with the traction button for affecting hauling rope.

In above-mentioned technical proposal, sliding sleeve is set on rear push-rod, when being folded by unfolded state, sliding sleeve connects after Bar forward slip, when being unfolded by collapse state, sliding sleeve is slided backward along back link, will not be arrived because of other component affectings Slidably reciprocating on rear push-rod is slided over, catching phenomenon is prevented.Locking piece and unlock piece in linkage, pass through traction Button drives hauling rope, so that unlock piece be affected to be unlocked locking piece, after locking piece unlock, handrail opposite can be pushed forward Bar rotation, to realize folding.After vehicle frame, linkage is locked, prevents vehicle frame from voluntarily folding, keeps its structure more steady It is fixed.

Preferably, linkage includes the first disk shell fixed with handrail, fixed with preceding push rod and with first The second disk shell that disk housing into rotation fastens, and the first rotating shaft through the first disk shell and the second disk shell. First disk shell and the second disk shell, which complement each other to form linkage, can be improved stabilization of the vehicle frame in folding process Property.

Preferably, locking piece includes: to be located on the first disk shell and the second disk shell and draw close side by side First internal gear and the second internal gear；The lock gear being slidably located in first rotating shaft, lock gear have simultaneously with first Internal gear and the locking bit of the second internal gear engagement and the release the lock position for being detached from a wherein internal gear；Act on the second internal gear and lock Between fixed gear, to drive lock gear to enter the pressure spring of locking bit.It is able to bear by the locking of lock gear bigger Torque prevents the accidental unlocking under the weight effect of children, and locking effect is more stable, improves safety.

Preferably, unlock piece includes being slidably located in first rotating shaft, and support and be clipped in the first disk shell and locking teeth The first rotating block between wheel；First rotating block is cylindric, winding slot of the side equipped with winding hauling rope；In the first rotation One of them between the bottom surface of block and the first disk shell is equipped with wedge block, and another one is equipped with the wedge cooperated with wedge block Shape slot when hauling rope affects the first rotating block to rotate, enters lock gear along first rotating shaft sliding under the action of wedge block Release the lock position.

Preferably, the first disk shell is equipped with the through-hole passed through for hauling rope；First rotating block is equipped with an arc Slot, the first disk shell are equipped with the arc bump with arc groove cooperation limit.

Preferably, one end of winding slot is equipped with the fixing axle for fixed traction bitter end portion.

Preferably, being equipped with the supporting element for being used to support sheet between two handrails, supporting element includes being fixed on two handrails Fixed frame on the inside of bar and the adjustable shelf being movably connected on the inside of two handrails；Adjustable shelf is U-shaped structure, both ends be equipped with The rotating disc of first disk housing hinge is equipped with intermeshing damping on the rotating disc two sides opposite with the first disk shell Tooth.Due to the lighter weight of adjustable shelf, the positioning of adjustable shelf is not only able to achieve using damping tooth, meanwhile, it only need to slightly exert oneself, i.e., It can be rotated the position of adjustable shelf.

Preferably, being equipped with limiting slot one of between rotating disc and the first disk shell, another one is set along limiting slot The limited block of sliding.Prevent rotating disc rotation excessive.

Preferably, traction button includes the second rotation being movably arranged in the inner cavity of U-shaped handrail by the second shaft Block and the briquetting for driving the second rotating block rotation；Second rotating block be it is cylindric, side relative position is respectively equipped with The winding slot of hauling rope, the reversed winding of two hauling ropes are corresponded in two handrail of winding；One is equipped in the upper bottom surface of the second rotating block The eccentric shaft to offset with briquetting, pressing briquetting make to drive the rotation of the second rotating block by eccentric shaft.It will traction button setting It is convenient that vehicle frame is controlled at any time on U-shaped handrail.

Preferably, briquetting is slidably connected on the U-shaped handrail, inside there is an open cavity, the one of the second rotating block It is partially received in open cavity, the groove to offset with eccentric shaft is equipped at the edge of open cavity.

Compared with prior art, the utility model has the following beneficial effects:

The stable structure of the baby carriage vehicle frame convenient for folding of the utility model, smooth beauty after folding, meanwhile, respectively Component is not susceptible to catching phenomenon when relatively movable.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the baby carriage vehicle frame unfolded state of the utility model embodiment；

Fig. 2 is the explosive view of the portion A linkage in the utility model embodiment Fig. 1；

Fig. 3 is the explosive view of linkage another angle in the portion A in the utility model embodiment Fig. 1；

Fig. 4 is the explosive view that button is drawn in the portion B in the utility model embodiment Fig. 1；

Fig. 5 is the structural schematic diagram of first rotating block of the utility model embodiment；

Fig. 6 is the structural schematic diagram of the baby carriage vehicle frame folding state of the utility model embodiment.

Each appended drawing reference in figure are as follows: 1, front wheel bar；2, rear wheel bar；3, handrail；31, rotating disc；32, tooth is damped；33, Limited block；4, preceding push rod；5, rear push-rod；6, linkage；61, the first disk shell；611, through-hole；612, wedge block；613, Arc bump；614, limiting slot；62, the second disk shell；63, first rotating shaft；64, the first internal gear；65, the second internal gear； 66, lock gear；67, pressure spring；68, the first rotating block；681, winding slot；682, wedge groove；683, arc groove；7, front rod； 8, back link；9, straight-bar；10, sliding sleeve；11, connecting rod；12, seat fixed link；13, fastening piece；14, fastening axis；15, U-shaped to help Hand；151, the second shaft；152, the second rotating block；153, briquetting；154, winding slot；155, eccentric shaft；16, cup holder；17, Reinforce cross bar；18, it rides；19, button is drawn；20, guard rail rod；21, fixed frame；22, adjustable shelf.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, with reference to embodiments and its attached drawing pair The utility model is described further.

Embodiment

Referring to Fig. 1 and Fig. 2, the baby carriage vehicle frame convenient for folding of the utility model include front wheel bar 1, rear wheel bar 2, Handrail 3, preceding push rod 4, rear push-rod 5, seat fixed link 12, guard rail rod 20 and supporting element, the top of preceding push rod 4 and handrail 3 bottom is rotatably assorted by linkage 6, and locking piece and unlock piece are equipped in linkage 6, when vehicle frame expansion, to hinge Chain mechanism 6 is locked, and prevents vehicle frame from voluntarily folding, and keeps its structure more stable.The hinged pusher in one end of seat fixed link 12 Bar 5, middle part have the hinge joint connecting with preceding push rod 4.Guard rail rod 20 is located at the top of seat fixed link 12, after one end is hinged Push rod 5, middle part have the hinge joint connecting with preceding push rod 4.Supporting element includes 21 He of fixed frame being fixed on the inside of two handrails The adjustable shelf 22 being movably connected on the inside of two handrails, by the sheet of the fixed baby carriage of supporting element, meanwhile, pass through activity The front and back of frame rotates, and realizes the folding of sheet.

Front rod 7 and back link 8 are respectively articulated in front wheel bar 1 and rear wheel bar 2, and front rod 7 and back link 8 are mutually cut with scissors It connects.The end of rear wheel bar 2 is bent downwardly to form a straight-bar 9, and the top of front wheel bar 1 and the bottom end of straight-bar 9 are hinged.Preceding push rod 4 Bottom end is hinged on the intersection of rear wheel bar 2 Yu straight-bar 9, and the rear wheel bar 2 and straight-bar 9 of the present embodiment are vertically arranged, when vehicle frame is unfolded, Front wheel bar 1 and preceding push rod 4 are on same straight line, and rear wheel bar 2 plays the role of support simultaneously, keeps the structure of vehicle frame more steady It is fixed.One rotation axis is set in rear wheel bar 2 and 9 intersection of straight-bar, the circle of setting and rotation axis cooperation in the bottom end of preceding push rod 4 Shape turning set, the edge mate bottom end circular arc of rear wheel bar and the setting of straight-bar intersection and circular rotatable set, push rod turns before realizing It is dynamic.

One end of rear push-rod 5 is hinged with the sliding sleeve 10 being set on back link 8, and the other end is bent upwards to form a connecting rod 11, the angle between rear push-rod 5 and connecting rod 11 is 100 °.Before the end of connecting rod 11 is connected between push rod 4 and handrail 3 Hinge joint, linkage 6 be arranged at the interface point.

The fastener having locking effect when vehicle frame folds is equipped between rear wheel bar 2 and preceding push rod 4, which includes setting It sets in the fastening piece 13 in rear wheel bar 2 and the fastening axis 14 being arranged on preceding push rod 4, fastening piece 13 is equipped with matches with fastening axis 14 The locked groove of conjunction, the edge of fastening piece are equipped with the flange convenient for fastening, and the root of fastening axis 14 is equipped with the annular of stuck lock groove edge Groove.

U-shaped handrail 15 is equipped between two handrails 3, wherein a handrail is equipped with the cup holder 16 for holding water cup.Cup Frame 16 can conveniently go out and carry cup.It is equipped in the inner cavity of handrail 3 and U-shaped handrail 15 for controlling unlock piece release locking piece Hauling rope, be provided on U-shaped handrail 15 for affecting hauling rope to draw button 19.By hauling rope connect traction button 19 with The unlock piece of linkage 6.

It is equipped between two rear push-rods 5 and reinforces cross bar 17.Strengthen the stability of vehicle frame.It is equipped between two front wheels bar 1 foot-operated 18, it rides 18 and is equipped with non-slip texture.The compact sense of vehicle frame and stability are improved, aesthetics is increased.

The linkage 6 of the present embodiment includes: the first disk shell 61 fixed with handrail 3；Fixed with preceding push rod 4, And the second disk shell 62 fastened with the rotation of the first disk shell 61；And run through the first disk shell 61 and the second disk shell The first rotating shaft 63 of body 62.First disk shell 61 is equipped with the through-hole 611 passed through for hauling rope；

Locking piece includes:

It is located at the first internal gear 64 drawn close on the first disk shell 61 and the second disk shell 62 and side by side and Two internal gears 65；

Lock gear 66 in the first rotating shaft that is slidably located in 63, lock gear have simultaneously with the first internal gear 64 and the The locking bit of two internal gears 65 engagement and the release the lock position for being detached from a wherein internal gear；

It acts between the second internal gear 65 and lock gear 66, to drive lock gear 66 to enter the pressure spring of locking bit 67。

Unlock piece includes: to be slidably located in first rotating shaft 63, and support and be clipped in the first disk shell 61 and lock gear 66 Between the first rotating block 68.First rotating block 68 be it is cylindric, side be equipped with winding hauling rope winding slot 681, around One end of wire casing 681 is equipped with the fixing axle for fixed traction bitter end portion.Wedge groove is equipped in the bottom surface of the first rotating block 68 682, the first disk shell 61 is equipped with the wedge block 612 cooperated with wedge groove 682, and hauling rope affects the first rotating block 68 to rotate When, so that lock gear 66 is entered release the lock position along the sliding of first rotating shaft 63 under the action of wedge block 612.On first rotating block 68 It is additionally provided with an arc groove 683, the first disk shell 61 is equipped with the arc bump 613 with the cooperation limit of arc groove 683.

The adjustable shelf of two handrails, 3 inside is U-shaped structure, and both ends are equipped with turn hinged with the first disk shell 61 Moving plate 31 is equipped with intermeshing damping tooth 32 on the two sides opposite with the first disk shell 61 of rotating disc 31.First disk shell Body 61 is equipped with limiting slot 614, and rotating disc 31 is equipped with the limited block 33 slided along limiting slot 614.Due to the quality of adjustable shelf It is relatively light, the positioning of adjustable shelf is not only able to achieve using damping tooth, meanwhile, it only need to slightly exert oneself, i.e. the rotatable position of adjustable shelf. The cooperation of limited block 33 and limiting slot 614 can prevent rotating disc 31 from rotating excessively.

Drawing button includes: the second rotating block being movably arranged in the inner cavity of U-shaped handrail 15 by the second shaft 151 152 briquettings 153 for rotating and being slidably connected on U-shaped handrail 15 with the second rotating block 152 of driving.Second rotating block 152 is Cylindric, side relative position is respectively equipped with the winding slot 154 that hauling rope is corresponded in two handrail of winding, and two hauling ropes are reversed Winding；It is equipped with an eccentric shaft 155 to offset with briquetting 153 in the upper bottom surface of the second rotating block 152, pressing briquetting 153 makes The rotation of the second rotating block 152 is driven by eccentric shaft 155.There is open cavity in briquetting 153, one of the second rotating block 152 Partial volume is contained in open cavity, and the groove to offset with eccentric shaft is equipped at the edge of open cavity.

When folding, first by pressing the briquetting 153 on U-shaped handrail 15, briquetting resists eccentric shaft 155 and inwardly moves Dynamic, to drive the rotation of the second rotating block 152, the rotation of the second rotating block 152 takes up hauling rope along winding slot 154, thus The first rotating block 68 is affected to rotate, during the rotation of the first rotating block 68, wedge groove 682 offsets with wedge block 612, makes the One the sliding axially along first rotating shaft 63 of rotating block 68, to drive lock gear 66 to enter release the lock position, i.e., to linkage 6 Be unlocked, be then lifted up U-shaped handrail 15, at the same make the bottom end of handrail 3 compress downwards before push rod 4 top, this When handrail 3 relatively before push rod 4 fold, preceding 4 opposing rear wheels bar 2 of push rod folds, and front rod 7 is folded with respect to back link 8, sliding sleeve 10 fold with respect to straight-bar 9 along 8 forward slip of back link, front wheel bar 1, after entire vehicle frame folds completely, fastening piece 13 are clasped Sympodium 14.When expansion, then fastening piece 13 and fastening axis 14 are separated first, then the U-shaped handrail 15 of pull-up, all components start Expansion, when being fully deployed, locks, front wheel bar 1, preceding push rod 4 and handrail 3 are in same straight line between preceding push rod 4 and handrail 3 On, front rod 7 and back link 8 are on same straight line.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of baby carriage vehicle frame convenient for folding, including front wheel bar, rear wheel bar, handrail, preceding push rod and rear push-rod, institute The top of push rod and the bottom of the handrail are rotatably assorted by linkage before stating, it is characterised in that:

Front rod and back link, and the front rod and the back link have been respectively articulated in the front wheel bar and the rear wheel bar It is hinged,

The bottom end of the preceding push rod is hinged with the rear wheel bar；

One end of the rear push-rod is hinged with the sliding sleeve being set on the back link, and the other end is movably attached to the preceding push rod With the hinge joint between the handrail；The sliding sleeve is slided along back link to cooperate the expansion of the vehicle frame and fold；

Be equipped with locking piece and unlock piece in the linkage, be equipped with U-shaped handrail between two handrails, the handrail with it is described The hauling rope that the locking piece is discharged for controlling the unlock piece is equipped in the inner cavity of U-shaped handrail, the U-shaped handrail is equipped with For affecting the traction button of the hauling rope.

2. baby carriage vehicle frame according to claim 1, it is characterised in that:

The linkage includes the first disk shell with handrail fixation, fixes with preceding push rod and justifies with described first The second disk shell that disk housing into rotation fastens, and first turn through the first disk shell and the second disk shell Axis.

3. baby carriage vehicle frame according to claim 2, it is characterised in that:

The locking piece includes:

It is located at the first internal gear and the second internal gear drawn close on the first disk shell and the second disk shell and side by side；

The lock gear being slidably located in the first rotating shaft, the lock gear have simultaneously with first internal gear and The locking bit of second internal gear engagement and the release the lock position for being detached from a wherein internal gear；

It acts between second internal gear and the lock gear, to drive lock gear to enter the pressure spring of locking bit.

4. baby carriage vehicle frame according to claim 3, it is characterised in that:

The unlock piece includes being slidably located in the first rotating shaft, and support and be clipped in the first disk shell and the lock The first rotating block between fixed gear；

First rotating block is cylindric, winding slot of the side equipped with hauling rope described in winding；In first rotating block Bottom surface and the first disk shell between one of them be equipped with wedge block, another one, which is equipped with, to be cooperated with wedge block Wedge groove when the hauling rope affects the first rotating block to rotate, makes institute along the first rotating shaft sliding under the action of wedge block It states lock gear and enters release the lock position.

5. baby carriage vehicle frame according to claim 4, it is characterised in that:

The first disk shell is equipped with the through-hole passed through for the hauling rope；

First rotating block is equipped with an arc groove, and the first disk shell is equipped with and arc groove cooperation limit Arc bump.

6. baby carriage vehicle frame according to claim 4, it is characterised in that:

One end of the winding slot is equipped with the fixing axle for fixing the hauling rope end.

7. baby carriage vehicle frame according to claim 2, it is characterised in that:

The supporting element for being used to support sheet is equipped between two handrails, the supporting element includes being fixed on consolidating on the inside of two handrails The adjustable shelf determining frame and being movably connected on the inside of two handrails；

The adjustable shelf is U-shaped structure, and both ends are equipped with the rotating disc with the first disk housing hinge, in the rotation The disk two sides opposite with the first disk shell is equipped with intermeshing damping tooth.

8. baby carriage vehicle frame according to claim 7, it is characterised in that:

Limiting slot is equipped with one of between the rotating disc and the first disk shell, another one is set along the limit The limited block of slot sliding.

9. baby carriage vehicle frame according to claim 2, it is characterised in that:

The traction button include the second rotating block for being movably arranged on by the second shaft in the inner cavity of the U-shaped handrail and Drive the briquetting of the second rotating block rotation；

Second rotating block be it is cylindric, side relative position be respectively equipped with corresponded in two handrail of winding hauling rope around Wire casing, the reversed winding of two hauling ropes；An eccentric shaft to offset with the briquetting, pressing are equipped in the upper bottom surface of the second rotating block The briquetting makes to drive the rotation of the second rotating block by eccentric shaft.

10. baby carriage vehicle frame according to claim 9, it is characterised in that:

The briquetting is slidably connected on the U-shaped handrail, inside there is an open cavity, and one of second rotating block Partial volume is contained in the open cavity, and the groove to offset with the eccentric shaft is equipped at the edge of open cavity.