Invention content
The present invention provides a kind of Pushchairs, and drive mechanism is novel, only one man operation is needed to can be completed to baby
The folding and unfolding of youngster's vehicle keeps retractable operation simpler.
Technical program of the present invention lies in:Including main frame mechanism, handrails framework mechanism and link mechanism,
Main frame mechanism, including two parallel main support rods, two described main support rod one end are respectively connected there are one after
Wheel;
Link mechanism, including two parallel first connecting rods, the upper end is hinged with the other end of a main support rod respectively,
Lower end respectively connects a front-wheel;Two parallel second connecting rods, lower end are hinged with a first connecting rod respectively;Two parallel
Third connecting rod, lower end are hinged with a main support rod respectively;
Handrails framework mechanism, including hand handle, the two piece parallel handles hinged with hand handle and it is hinged on two handle other ends
First crossbeam, the second connecting rod upper end is hinged on the first crossbeam, and third connecting rod upper end is fixed on first crossbeam,
The handle is hollow stem, is inside equipped with drawstring, and the articulated section of the hand handle and handle carries central shaft, and drawstring upper end is in the past
Side connects around hand handle with the central shaft of handle articulated section with the articulated section for connecting hand handle, and hand handle is made to rotate backward relative to handle
When, drawstring can bypass hand handle and the central shaft of handle articulated section has been pulled upwardly, and L is connected between the handle and first crossbeam
Shape sleeve, one end of which is fixed on handle lower end, the other end is set in first crossbeam end and can be rotated around first crossbeam, described to push away
Being located at that the side wall in L-shaped sleeve is equipped with interior equipped with the lock tongue being connect with drawstring lower end, on the first crossbeam can be with the lock
The holding section of tongue cooperation, when baby carriage body is fully deployed, the lock tongue lower end engages with holding section locks car body.
The holding section is the length for being opened in first crossbeam both ends towards handle side side wall as a preferred embodiment of the above solution,
Hole, the lock tongue are block structure, and lower end is equipped with the protruding portion that can be engaged with the holding section, is opened up completely in baby carriage body
When opening, lock tongue lower end protruding portion is inserted into the slot hole, and handle and first crossbeam are locked.
As a preferred embodiment of the above solution, first is equipped with towards the side wall of baby carriage body rear side on the L-shaped sleeve
Positive stop lug boss is equipped with the second positive stop lug boss, first limit convex on the third connecting rod towards baby carriage body rear side
Platform is located above the second positive stop lug boss, in the state that baby carriage body is fully deployed, second positive stop lug boss upper surface with
First positive stop lug boss lower surface is bonded, to prevent L-shaped sleeve from being rotated to baby carriage body rear around first crossbeam.
The hinged place of the hand handle and handle is hinged by bending mechanism as a preferred embodiment of the above solution, the bender
Structure includes the first bending monomer being connect with hand handle and the second bending monomer being connect with handle, the first bending monomer and
The box-like interconnecting piece of end face opening is equipped on two bending monomers, two box-like interconnecting pieces are same by the central shaft set on center
Axis is hinged, and non-central portion is equipped with button hole on the box-like interconnecting piece of the first bending monomer, is provided with button in button hole, institute
It states and is equipped with blind hole in the box-like interconnecting piece of the second bending monomer, by bottom upwards successively equipped with spring and pin in blind hole, and
Under the non-bending state of bending mechanism, the pin upper surface is bonded with button lower face, by pressing button, can be pressed into pin
In blind hole.
Center is equal in the box-like interconnecting piece of the first bending monomer and the second bending monomer as a preferred embodiment of the above solution,
Equipped with to be arranged the cylindrical sleeve of central shaft, the cylindrical sleeve periphery is equipped with annular convex platform, in the first bending monomer
Cylindrical sleeve and annular convex platform between be equipped with card slot, offer guiding bayonet, drawstring on the annular convex platform of the second bending monomer
Upper end is T-shaped structure, and the transverse part of T-shaped structure is caught in the card slot of the first bending monomer, and lower end, which passes through, to be oriented to bayonet and stretch
Enter to handle.
Two main support rods are connected between the articulated section of a first connecting rod respectively as a preferred embodiment of the above solution,
Two crossbeams, Pushchair both sides further respectively have first handrail, and one end is hinged on second cross beam, other end hinge
It is connected on handle.
Two main support rods are located between two first connecting rods as a preferred embodiment of the above solution, two third connecting rods
Between two main support rods, two second connecting rods are located between two third connecting rods.
The second handrail, second handrail both ends are equipped between two first handrails as a preferred embodiment of the above solution,
It is respectively hinged on first handrail, a third crossbeam is connected between two trailing wheels.
Seat support rack is additionally provided on the Pushchair car body comprising two as a preferred embodiment of the above solution,
Parallel and one end and the hinged fourth link of two main backstop upper end opposing sidewalls, two fourth link other end difference
Hinged 5th connecting rod, two the 5th connecting rod other ends are respectively hinged on the opposite side wall of two handles, two
A supporting rod is fixedly connected between the fourth link.
One piece of foot pedal, two second connecting rod lower ends are hinged between two first connecting rods as a preferred embodiment of the above solution,
It is fixedly connected on the foot pedal, and two second connecting rods are L-shaped bar, under baby carriage body fully unfolded position,
Its one end being connect with foot pedal is in horizontality, and the other end is folded upward at hinged with top first crossbeam.
It is fixed on the first crossbeam as a preferred embodiment of the above solution, there are two the quarter butt opposite with the second connecting rod,
Two second connecting rod upper ends are hinged with the quarter butt, under baby carriage body fully unfolded position, quarter butt other end direction
Downside in front of baby carriage body.
The beneficial effects of the present invention are:
1, the perambulator drive mechanism of above structure is novel, and stability is high, can be completed to vehicle by rotating hand handle
It folds, only needs one man operation, it is easy to operate, it is easy to use.
2, compact-sized after the folding of baby of above structure, it occupies little space, can effectively save the interior space.
Specific implementation mode
Below in conjunction with attached drawing detailed description of the present invention embodiment.
As shown in Figure 1, the structure of the present embodiment includes main frame mechanism, handrails framework mechanism and link mechanism,
Main frame mechanism, including two parallel main support rods 14, two 14 one end of the main support rod are respectively connected with one
A trailing wheel 15;
Link mechanism, including two parallel first connecting rods 4, the upper end are cut with scissors with the other end of a main support rod 14 respectively
It connects, lower end respectively connects a front-wheel 2;Two parallel second connecting rods 3, lower end are hinged with a first connecting rod 4 respectively;Two
Parallel third connecting rod 13, lower end are hinged with a main support rod 14 respectively;
Handrails framework mechanism, including hand handle 8, the two piece parallel handles 10 hinged with hand handle 8 and it is hinged on two handles 10
The first crossbeam 11 of the other end, 3 upper end of second connecting rod are hinged on the first crossbeam 11, and 13 upper end of third connecting rod is fixed on
On one crossbeam 11, the handle 10 is hollow stem, is inside equipped with drawstring 904, and hand handle 8 and the articulated section of handle 10 carry center
Axis, 904 upper end of drawstring from front (i.e. the sides A in Fig. 3) around hand handle 8 and the central shaft of 10 articulated section of handle with connect hand handle 8
Articulated section connection, when hand handle 8 being made to rotate backward relative to handle 10, drawstring 904 can bypass hand handle 8 and 10 articulated section of handle
Central shaft has been pulled upwardly, and L-shaped sleeve 12 is connected between handle 10 and first crossbeam 11, and one end of which is fixed under handle 10
End, the other end are set in 11 end of first crossbeam and can be rotated around first crossbeam, are equipped in handle 10 and are connect with 904 lower end of drawstring
Lock tongue 905, the side wall in L-shaped sleeve 12 is located on first crossbeam 11 and is equipped with the holding section 501 that can coordinate with lock tongue 905, such as
Shown in Fig. 5, when baby carriage body is fully deployed, 905 lower end of lock tongue engages with holding section 501 locks car body.
In the present embodiment, holding section 501 is the slot hole for being opened in 11 both ends of first crossbeam towards 10 side side wall of handle,
The lock tongue 905 is block structure, and lower end is equipped with the protruding portion that can be engaged with the holding section 501, complete in baby carriage body
When full expansion, 905 lower end protruding portion of the lock tongue is inserted into the slot hole, and handle 10 and first crossbeam 11 are locked.
In the present embodiment, on L-shaped sleeve 12 the first positive stop lug boss is equipped with towards the side wall of baby carriage body rear side
17, the second positive stop lug boss 18 is equipped with towards baby carriage body rear side on third connecting rod 13, and the first positive stop lug boss 17 is located at the
Two positive stop lug boss, 18 top, in the state that baby carriage body is fully deployed, 18 upper surface of the second positive stop lug boss and the first limit
17 lower surface of boss is bonded, and to prevent L-shaped sleeve 12 from being rotated to baby carriage body rear around first crossbeam 11, is illustrated in figure 6
Partial structural diagram under car body fully unfolded position.
In the present embodiment, hand handle 8 and the hinged place of handle 10 are hinged by bending mechanism, bending mechanism (such as Fig. 2,3,4
It is shown) include the first bending monomer 901 being connect with hand handle 8 and the second bending monomer 906 being connect with handle 10, the first bending
The box-like interconnecting piece 9011 of end face opening, two box-like interconnecting pieces 9011 are equipped on monomer 901 and the second bending monomer 906
Coaxially hinged by the central shaft 908 set on center, non-central portion is equipped with button on the box-like interconnecting piece of the first bending monomer 901
Hole 9014 is provided with button 902 in button hole 9014, and blind hole 9064 is equipped in the box-like interconnecting piece of the second bending monomer 906, blind
Spring 907 and pin 903 are equipped with by bottom successively upwards in hole 9064, and under the non-bending state of bending mechanism, pin upper end
Face is bonded with button lower face, and by pressing button 902, pin 903 can be pressed into blind hole 9064.
In the present embodiment, center is equipped in the box-like interconnecting piece of the first bending monomer 901 and the second bending monomer 906
To be arranged the cylindrical sleeve 9012 of central shaft 908,9012 periphery of cylindrical sleeve is equipped with annular convex platform 9013, the first bending monomer
It is equipped with card slot 9015 between cylindrical sleeve and annular convex platform in 901, offers and leads on the annular convex platform of the second bending monomer 906
To bayonet 9065,904 upper end of drawstring is T-shaped structure, and the transverse part of T-shaped structure is caught in the card slot of the first bending monomer 901
In 9015, lower end, which passes through, to be oriented to bayonet 9065 and stretches in handle 10.
In the present embodiment, two main support rods 14 are connected with second between the articulated section of a first connecting rod 4 respectively
Crossbeam 5, Pushchair both sides further respectively have first handrail 7, and one end is hinged on second cross beam 5, the other end
It is hinged on handle 10.
In the present embodiment, two main support rods 14 are located between two first connecting rods 4, two third connecting rods 13
Between two main support rods 14, two second connecting rods 3 are located between two third connecting rods 13.
In the present embodiment, the second handrail 6 is equipped between two first handrails 7,6 both ends of the second handrail are respectively hinged at one
On the first handrail of root 7, a third crossbeam 16 is connected between two trailing wheels 15.
In the present embodiment, it is additionally provided with seat support rack on Pushchair car body, as shown in Figure 7 comprising two
Parallel and one end and the hinged fourth link 19 of two 14 upper end opposing sidewalls of main backstop, two 19 other ends of fourth link point
Not Jiao Jie the 5th connecting rod 20, two 20 other ends of the 5th connecting rod are respectively hinged on the opposite side wall of two handles 10,
A supporting rod 21 is fixedly connected between two fourth links 19.
In the present embodiment, one piece of foot pedal 1 is hinged between two first connecting rods 4, two 3 lower ends of second connecting rod are fixed
It is connected on the foot pedal 1, and two second connecting rods 3 are L-shaped bar, under baby carriage body fully unfolded position,
The one end being connect with foot pedal 1 is in horizontality, and the other end is folded upward at hinged with top first crossbeam 11.
In the present embodiment, the quarter butt 22 opposite with the second connecting rod 3 there are two being fixed on the first crossbeam 11, two
3 upper end of second connecting rod described in root is hinged with the quarter butt 22, under baby carriage body fully unfolded position, 22 other end court of quarter butt
Downside in front of to baby carriage body.
In the present embodiment.
The folding principle of above-mentioned Pushchair is described in detail, under on the basis of the state and orientation that are showed below by Fig. 8
State in content, by according in Fig. 8 action arrow and Fig. 9 the kind of drive of Pushchair is described.
In the state that car body is fully deployed, 905 lower end of lock tongue in handle 10 is inserted into the length of 11 side wall of first crossbeam
In hole, to lock L-shaped sleeve 12 and first crossbeam 11, make L-shaped sleeve 12 that can not be rotated relative to first crossbeam 11, to
Keep the transmission mechanism of car body locked.
When folding, foot slams the third crossbeam 16 between two trailing wheels, and presses the button 902 on bending mechanism, make by
Pin 903 is pressed into the blind hole of the second bending monomer 906 by button 902, and the first bending monomer 901 drives hand handle 8 along side clockwise
It is rotated to car body rear, since 904 upper end of drawstring is connected on the first bending monomer 901, towards before car body from central shaft
The side wall of square side bypasses, and is stretched in handle 10 across bayonet 9065 is oriented to, therefore works as the first bending monomer 901 to car body
When rear rotates, the first bending monomer 901 can pull up drawstring 904, and drawstring 904 is pulled upward the lock tongue for driving lower end
905 move upwards, until 905 lower end of lock tongue and the slot hole of first crossbeam 11 are kept completely separate.
After lock tongue 905 is detached with the slot hole of first crossbeam 11, push handle 10 that handle is made to rotate counterclockwise forward, L-shaped set
Cylinder 12 drives first crossbeam 11 to be moved in parallel to car body rear, and first crossbeam 11 drives third connecting rod 13 around lower end articulated section up time
Needle direction rotates, and L-shaped sleeve 12 is made to reach above trailing wheel, meanwhile, when first crossbeam 11 is moved in parallel to car body rear, due to
Two quarter butts 22 are socketed on first crossbeam, as shown in figure 9, under car body fully unfolded position, 22 other end of quarter butt is towards vehicle
Downside tilts in front of body, and hinged with 3 upper end of second connecting rod respectively, and second connecting rod 3 can be around articulated section in perpendicular
Rotation, therefore first crossbeam 11, in translation, quarter butt 22 rotates clockwise, and 3 upper end of second connecting rod is pulled to move upwards the simultaneously inverse time
Needle rotates, and make second connecting rod 3 is bent up that trisection is gradually close to third connecting rod 13, and under the pulling of second connecting rod 3, first connects
Bar 4 is rotated in an anti-clockwise direction around the upper end articulated section, until first connecting rod 4 is parallel with main support rod 14, first connecting rod 4 and front-wheel
It is stowed away, while 10 upper end of handle moves between two the first handrails 7, completes the folding to car body.
When opening car body, only it need to reversely implement above-mentioned folding step.
It in summary it can be seen, the stability of the perambulator transmission mechanism of above structure is high, and operating procedure is simple, only needs a people
The folding to car body can be completed in operation, very easy to use, and folded configuration is compact, places indoors, occupied space
It is small.