CN208515653U - The folding stand and perambulator of perambulator - Google Patents

Abstract

The utility model discloses a kind of folding stand of perambulator and perambulators, including frame body, the frame body includes foreleg bar, push-pull rod, back leg bar, main joint, foreleg bar upper end with the ipsilateral push-pull rod lower end, back leg bar upper end is hinged by the main joint, the hook that returns the vehicle to the garage and knock off is equipped on the push-pull rod of the frame body side at the main joint, the connector being adapted to the hook that returns the vehicle to the garage and knock off is equipped on the ipsilateral foreleg bar of the hook that returns the vehicle to the garage and knock off at the main joint, told main joint includes preceding joint, upper joint, posterior joint, it is described preceding intra-articular to be equipped with the first bayonet lock, the frame body further include: folding-unfolding mechanism, among the frame body, the folding-unfolding mechanism includes stull, mounting bar, connecting rod, the stull is parallel with the main joint axis, the stull both ends are fixedly connected with trolley folding joint, the trolley folding joint Inside it is equipped with the second bayonet lock；Bracing wire controller.It is convenient to fold, and Automatic-expanding when need to use.

Description

The folding stand and perambulator of perambulator

Technical field

The utility model relates to baby carriage field, specifically the folding stand of baby carriage and the vehicle frame is used Carriage for children.

Background technique

The vehicle frame of existing perambulator generally realizes folder function in such a way that machinery receipts are folded or pneumatic receipts are folded, wherein pneumatically receipts It is folded to configure air pump, higher cost and there are security risk, received about machinery it is folded, in Chinese patent application prospectus, A kind of foldable stroller using locking mechanism is disclosed in CN106627716A, by the solution lock control that seat board lower part is arranged in Device control locking mechanism unlock folds or clamping lock is fixed, and when unlock can be such that vehicle frame easily folds up under gravity, It then needs to overcome gravity when expansion, from being unable to allow, user is convenient, effortlessly uses the vehicle frame expansion of folded state.

Utility model content

The utility model aim is to provide a kind of baby carriage frame that can be restored to unfolded state from folded state automatically, the perambulator Frame conveniently, effortlessly can fold or be unfolded.

The technical solution of the utility model is: the folding stand of perambulator, including frame body, and the frame body includes foreleg bar, pushes away Pull rod, back leg bar, main joint, the foreleg bar, push-pull rod, back leg bar are two and symmetrically set about the frame body middle line It sets, foreleg bar upper end is hinged on the ipsilateral push-pull rod lower end, back leg bar upper end by the main joint Together, the foreleg bar, push-pull rod, back leg bar are tubing, on the push-pull rod of the frame body side at the main joint Equipped with the hook that returns the vehicle to the garage and knock off, it is equipped at the main joint on the ipsilateral foreleg bar of the hook that returns the vehicle to the garage and knock off and is connect with what the hook that returns the vehicle to the garage and knock off was adapted to Head, told main joint include preceding joint, upper joint, posterior joint, it is described it is preceding it is intra-articular be equipped with the first bayonet lock, the preceding joint, Upper joint, posterior joint are hinged；

The frame body further include:

Folding-unfolding mechanism is located among the frame body, and the folding-unfolding mechanism includes stull, mounting bar, connecting rod, the stull with The main joint axis is parallel, and the stull both ends are fixedly connected with trolley folding joint, the trolley folding joint and the mounting bar one End is fixedly connected, and is rotatably connected on the foreleg bar in the middle part of the mounting bar, the trolley folding joint and the connecting rod one End is hinged and hinged place is equipped with the first torsional spring, and the connecting rod other end is rotatably connected on the back leg bar, described to return the vehicle to the garage and knock off It is intra-articular to be equipped with the second bayonet lock；

Bracing wire controller, including support, control key, the first bracing wire, the second bracing wire, the support are fixed in the stull Portion, the control key are fixedly connected with first bracing wire one end, and the first bracing wire other end is fixed with first bayonet lock Connection, the control key are fixedly connected with second bracing wire one end, and the second bracing wire other end and second bayonet lock are solid Fixed connection.

It using above-mentioned folding stand, can be folded to aspect, and be easily unfolded when need to use, and vehicle frame is whole Body weight is gently convenient for carrying.

Preferably, the trolley folding joint includes trolley folding joint seat, trolley folding joint lid, and the trolley folding joint seat is bowl-type, institute Trolley folding joint seat one side side wall is stated equipped with mounting groove, the mounting groove is cast, and the mounting groove is from the trolley folding joint seat Center side, which passes through, prolongs inside the trolley folding joint seat and reaches trolley folding joint seat another side side wall, mounting bar one end It is fixedly mounted in the mounting groove, the mounting groove outer surface is equipped with the second limit close to the trolley folding joint seat side-walls Block, bottom center is equipped with articulated shaft in the trolley folding joint seat, is cased with first torsional spring, the articulated shaft one on the articulated shaft Retaining groove is equipped between side and the mounting groove, described connecting rod one end is rotatably connected on the articulated shaft, and with described the One torsional spring, one elongated end is kept in contact, and another elongated end of the first torsional spring is arranged in the retaining groove, institute's trolley folding joint Seat bottom is equipped with pin hole close to sidewall locations, and the pin hole is cast and extends to the trolley folding joint from the socket joint bottom Seat is internal, and second bayonet lock is located in the pin hole and can horizontally slip, and the trolley folding joint lid is bowl cover type, and be can be rotated Ground is mounted on the trolley folding joint seat, is equipped with the second card slot on the inside of the trolley folding joint lid, second card slot and described the Two bayonet locks adaptation, lateral edge side wall is equipped with the second limiting slot in the trolley folding joint lid, and second limited block end is along described the Two limiting slots slide.

Using above-mentioned preferred embodiment, keep the folding-unfolding mechanism structure of the folding stand simple and safe and reliable.

Further, the support is made of fixed part and support portion, and the fixed part covers in the middle part of the stull and solid Fixed, the support portion includes room, the chamber sidewall equipped with torsional spring slot, and the torsional spring slot is interior to be equipped with the second torsional spring, the torsion Spring trench bottom is equipped with connecting hole, and the chamber sidewall is additionally provided with the first bracing wire hole, the second bracing wire hole, and the control key is by connecting The L-type part of arm and key composition, the linking arm lower end are equipped with connecting shaft, and the connecting shaft both ends insertion described second is turned round Spring, then be installed in rotation in the room by the connecting hole, one elongated end of the second torsional spring and the linking arm It is fixedly connected, another elongated end of the second torsional spring is arranged in the torsional spring slot, and the first bracing wire is equipped among the linking arm Interconnecting piece, the linking arm and key intersection both ends are equipped with the second bracing wire interconnecting piece.

Using above-mentioned preferred embodiment, can by the unlock of the one key control main joint of bracing wire controller and folding-unfolding mechanism with Locking.

Further, the preceding joint is made of the two parts being fastened togather, and a part includes the first articulated section, first Interconnecting piece, another part include the second articulated section, second connecting portion, are equipped with strip sliding slot and one on the inside of first articulated section It directly extends on the inside of the first connecting portion, first bayonet lock is positioned in the chute and can slide up and down, the sliding slot bottom Portion is provided with through-hole, is equipped with the first limited block on the outside of first articulated section, and the first connecting portion section is semicircle and can be from The insertion of foreleg bar upper end, second articulated section and first articulated section symmetrical configuration, the second connecting portion and institute State first connecting portion symmetrical configuration.

Further, the upper joint is made of the two parts for being hinged on the preceding joint two sides, and a part includes third Articulated section, third interconnecting piece, another part include the 4th articulated section, the 4th interconnecting piece, and the is equipped on the inside of the third articulated section One limiting slot, first limiting slot are that the arc-shaped and center of circle is located at third articulated section center, first limited block end Portion is slided along first limiting slot, is equipped with the first card slot on the outside of first limiting slot, first card slot be it is arc-shaped and Concentric with first limiting slot, first card slot end is communicated with locked groove, and first bayonet lock end is along first card Slot and the locked groove slide, and third interconnecting piece section is semicircle and can be inserted into from the push-pull rod lower end, the described 4th Articulated section structure and third articulated section symmetrical configuration, the 4th interconnecting piece and third interconnecting piece symmetrical configuration.

Further, be equipped on the outside of the upper joint connect it is stupefied, the connection it is stupefied for circular ring shape it is convex stupefied and with described first Limiting slot is concentric.

Using above-mentioned preferred embodiment, upper joint can be made more reliably to connect with posterior joint.

Further, the upper joint include third articulated section, third interconnecting piece part be equipped with the first stiffening plate, it is described First stiffening plate extends to the third interconnecting piece, first stiffening plate and the third articulated section from the third articulated section It is combined together to form first limiting slot and first card slot.

Further, the upper joint include the 4th articulated section, the 4th interconnecting piece part be equipped with the second stiffening plate, it is described Second stiffening plate is identical as the first stiffening plate structure.

Using above-mentioned preferred embodiment, main joint can be made stronger.

Further, the posterior joint includes the 5th articulated section, the 5th interconnecting piece, and the 5th articulated section is hinged on described On the outside of upper joint, the 5th hinged center is equipped with dustproof cover, and the 5th interconnecting piece section is round and can be from the back leg The insertion of bar upper end.

Prevent sundries from entering inside main joint using above-mentioned preferred embodiment, to make the vehicle frame in compared with position rugged environment It still is able to normal use.

The utility model also provides a kind of perambulator, and the folding stand of the perambulator including any preferred embodiment also wraps It includes: connecting the handrail of the push-pull rod, the front-wheel of foreleg bar lower end is set, after back leg bar lower end is set Wheel.

The beneficial effects of the utility model are:

1. being convenient to fold, and Automatic-expanding when need to use.

2. structure is simple, light-weight to be convenient for carrying, and safe and reliable.

3. not influencing to use in the presence of a harsh environment.

Detailed description of the invention

Fig. 1 is the overall structure figure of the utility model.

Fig. 2 is the structural decomposition diagram of the utility model folding-unfolding mechanism.

Fig. 3 is the structural decomposition diagram of the utility model bracing wire controller.

Fig. 4 is the structural schematic diagram of the utility model bracing wire controller key.

Fig. 5 is the structural decomposition diagram of the utility model main joint.

Fig. 6 is the structural schematic diagram on the outside of the preceding joint of the utility model.

Specific embodiment

It elaborates with reference to the accompanying drawing to the embodiments of the present invention.

As shown in figures 1 to 6, the folding stand of perambulator, including frame body 9, the frame body 9 include foreleg bar 6, push-pull rod 7, after Leg bar 8, main joint 1, the foreleg bar 6, push-pull rod 7, back leg bar 8 are two and are symmetrical arranged about 9 middle line of frame body, 6 upper end of foreleg bar is hinged on ipsilateral 7 lower end of the push-pull rod, 8 upper end of back leg bar by the main joint 1 Together, characterized in that the foreleg bar 6, push-pull rod 7, back leg bar 8 are tubing, are leaned on the push-pull rod 7 of 9 side of frame body It is equipped with the hook 71 that returns the vehicle to the garage and knock off at the nearly main joint 1, is equipped at the main joint 1 on the ipsilateral foreleg bar 6 of the hook 71 that returns the vehicle to the garage and knock off The connector 61 being adapted to the hook 71 that returns the vehicle to the garage and knock off, told main joint 1 include preceding joint 11, upper joint 12, posterior joint 13, are closed before described The first bayonet lock 15 is equipped in section 11, the preceding joint 11, upper joint 12, posterior joint 13 are hinged；

The frame body 9 further include:

Folding-unfolding mechanism 2 is located among the frame body 9, and the folding-unfolding mechanism 2 includes stull 21, mounting bar 22, connecting rod 23, The stull 21 is parallel with 1 axis of main joint, and 21 both ends of stull are fixedly connected with trolley folding joint 24, the pass of returning the vehicle to the garage and knock off Section 24 is fixedly connected with described 22 one end of mounting bar, is rotatably connected on the foreleg bar 6 in the middle part of the mounting bar 22, institute It states trolley folding joint 24 and described 23 one end of connecting rod is hinged and hinged place is equipped with the first torsional spring 231,23 other end of connecting rod can turn It is connected on the back leg bar 8 dynamicly, is equipped with the second bayonet lock 25 in the trolley folding joint 24；

Bracing wire controller 3, including support 31, control key 32, the first bracing wire 33, the second bracing wire 34, the support 31 are fixed At 21 middle part of stull, the control key 32 is fixedly connected with described first bracing wire, 33 one end, and first bracing wire 33 is another End is fixedly connected with first bayonet lock 15, and the control key 32 is fixedly connected with described second bracing wire, 34 one end, and described second 34 other end of bracing wire is fixedly connected with second bayonet lock 25.

When returning the vehicle to the garage and knock off, control key 32 is pressed, first bracing wire 33 is controlled and first bayonet lock 15 is driven to be in main joint 1 Unlocked state, the push-pull rod 7 are fallen naturally under the effect of gravity, are continued to press control key 32, are controlled second bracing wire 34 It drives second bayonet lock 25 to keep folding-unfolding mechanism 2 in the unlocked state, the foreleg bar 6, back leg bar 8 is pushed to keep it close and incites somebody to action The hook 71 that returns the vehicle to the garage and knock off, which is buckled on the connector 61, completes movement of returning the vehicle to the garage and knock off, and needs for vehicle frame to be unfolded in use, only need to be by the receipts Hitch 71 is pulled up from the connector 61, and under the action of the first torsional spring 231, which will Automatic-expanding.

Preferably, the trolley folding joint 24 includes trolley folding joint seat 241, trolley folding joint lid 242, the trolley folding joint seat 241 be bowl-type, and 241 one side side wall of trolley folding joint seat is equipped with mounting groove 221, and the mounting groove 221 is cast, the peace Tankage 221 is passed through from the 241 center side of trolley folding joint seat prolongs and reaches the pass of returning the vehicle to the garage and knock off inside the trolley folding joint seat 241 241 another side side wall of seat is saved, described 22 one end of mounting bar is fixedly mounted in the mounting groove 221,221 appearance of mounting groove Face is equipped with the second limited block 26 close to 241 side-walls of trolley folding joint seat, and bottom center is equipped with hinge in the trolley folding joint seat 241 Spindle 232, is cased with first torsional spring 231 on the articulated shaft 232,232 side of articulated shaft and the mounting groove 221 it Between be equipped with retaining groove 233, described 23 one end of connecting rod is rotatably connected on the articulated shaft 232, and with first torsional spring 231 One elongated end is kept in contact, and another elongated end of first torsional spring 231 is arranged in the retaining groove 233, institute's trolley folding joint 241 bottoms of seat are equipped with pin hole 251 close to sidewall locations, and the pin hole 251 is cast and extends to from 241 bottom of socket joint Inside the trolley folding joint seat 241, second bayonet lock 25 is located in the pin hole 251 and can horizontally slip, the pass of returning the vehicle to the garage and knock off Section lid 242 is bowl cover type, and is installed in rotation on the trolley folding joint seat 241, is equipped on the inside of the trolley folding joint lid 242 Second card slot 252, second card slot 252 are adapted to second bayonet lock 25, and lateral edge side wall is set in the trolley folding joint lid 242 There is the second limiting slot 261,26 end of the second limited block is slided along second limiting slot 261.

When returning the vehicle to the garage and knock off, second bracing wire 34 drives second bayonet lock 25 movable in second card slot 252, and described the Two bayonet locks, 25 end skids off realization unlock out of described second card slot 252, and the connecting rod 23 connects one end of the articulated shaft 232 First torsional spring 231 is rotated and squeezes, while the connecting pin of the connecting rod 23 and the back leg bar 8 rotates and drives institute It states the part that mounting bar 22 is connect with the foreleg bar 6 to rotate, makes the back leg bar 8 and the foreleg bar 6 to leaning on together Hold together, at this moment second limited block 26 is slided in second limiting slot 261 when appropriate location stopping, expansion, in institute Under the action of stating 231 spring force of the first torsional spring, the connecting rod 23 connects one end opposite direction rotation of the articulated shaft 232, simultaneously The connecting pin of the connecting rod 23 and the back leg bar 8 rotates backward and the mounting bar 22 is driven to connect with the foreleg bar 6 The part connect rotates backward, and separates the back leg bar 8 and the foreleg bar 6 automatically.

Further, the support 31 is made of fixed part and support portion, and the fixed part covers at 21 middle part of stull And it is fixed, the support portion includes that room 311,311 side wall of the room are equipped with torsional spring slot 35, and the is equipped in the torsional spring slot 35 Two torsional springs 322,35 bottom of torsional spring slot are equipped with connecting hole 351, and 311 side wall of room is additionally provided with the first bracing wire hole 331, the Two bracing wire holes 341, the L-type part that the control key 32 is made of linking arm and key, the linking arm lower end are equipped with connection Axis 321, second torsional spring 322 is inserted at 321 both ends of connecting shaft, then is installed in rotation on by the connecting hole 351 In the room 311,322 1 elongated end of the second torsional spring is fixedly connected with the linking arm, and second torsional spring 322 is another Elongated end is arranged in the torsional spring slot 35, and the first bracing wire interconnecting piece 324, the linking arm and institute are equipped among the linking arm Key intersection both ends are stated equipped with the second bracing wire interconnecting piece 325.

Described first bracing wire, 33 one end passes through first bracing wire hole 331 and the fixed company of the first bracing wire interconnecting piece 324 It connects, described second bracing wire, 34 one end passes through second bracing wire hole 341 and is fixedly connected with second bracing wire portion 325, presses institute When stating key, the connecting shaft 321 rotates, and squeezes second torsional spring 322, while driving the first bracing wire 33 and second Bracing wire 34, when unclamping the key, the key automatically resets under the action of 322 spring force of the second torsional spring.

Further, the preceding joint 11 is made of the two parts being fastened togather, a part include the first articulated section 41, First connecting portion 51, another part include the second articulated section 42, second connecting portion 52, are equipped with length on the inside of first articulated section 41 Bar shaped sliding slot 151 and extend to 51 inside of the first connecting portion, first bayonet lock 15 be located in the sliding slot 151 and It can slide up and down, 151 bottom of sliding slot is provided with through-hole 154, it is equipped with the first limited block 411 on the outside of first articulated section 41, 51 section of first connecting portion is semicircle and can be inserted into from 6 upper end of foreleg bar, second articulated section 42 with it is described First articulated section, 41 symmetrical configuration, the second connecting portion 52 and 51 symmetrical configuration of first connecting portion.

Further, the upper joint 12 is made of the two parts for being hinged on 11 two sides of preceding joint, and a part includes Third articulated section 43, third interconnecting piece 53, another part include the 4th articulated section 44, the 4th interconnecting piece 54, and the third is hinged The first limiting slot 431 is equipped on the inside of portion 43, first limiting slot 431 is that the arc-shaped and center of circle is located at the third articulated section 43 Center, 411 end of the first limited block are slided along first limiting slot 431, and the is equipped on the outside of first limiting slot 431 One card slot 152, first card slot 152 are arc-shaped and concentric with first limiting slot 431,152 end of the first card slot End is communicated with locked groove 153, and 15 end of the first bayonet lock is slided along first card slot 152 and the locked groove 153, the third Semicircle is in 53 section of interconnecting piece and can be inserted into from 7 lower end of push-pull rod, 44 structure of the 4th articulated section and the third 43 symmetrical configuration of articulated section, the 4th interconnecting piece 54 and 53 symmetrical configuration of third interconnecting piece.

Further, on the outside of the upper joint 12 be equipped with connection stupefied 433, it is described connection stupefied 433 for circular ring shape it is convex stupefied and with First limiting slot 431 is with one heart.

Further, the upper joint 12 is equipped with first including the part of third articulated section 43, third interconnecting piece 53 and reinforces Plate 121, first stiffening plate 121 extend to the third interconnecting piece 53 from the third articulated section 43, and described first reinforces Plate 121 and the third articulated section 43 are combined together to form first limiting slot 431 and first card slot 152.

Further, the upper joint 12 is equipped with second including the part of the 4th articulated section 44, the 4th interconnecting piece 54 and reinforces Plate 122, second stiffening plate 122 are identical as 121 structure of the first stiffening plate.

Further, the posterior joint 13 includes the 5th articulated section 45, the 5th interconnecting piece 55, the 5th articulated section 45 hinge It connects in 12 outside of upper joint, 45 center of the 5th articulated section is equipped with dustproof cover 14, and 55 section of the 5th interconnecting piece is It is round and can be inserted into from 8 upper end of back leg bar.

When returning the vehicle to the garage and knock off, first bayonet lock 15 is slided into suitably under the drive of first bracing wire 33 in the sliding slot 151 Position, the at this moment described preceding joint 11, upper joint 12, posterior joint 13 can relatively rotate, while first limited block 411 exists Sliding is until appropriate location stops in first limiting slot 431, it will be apparent that first bayonet lock 15 can be in elastomers such as springs Under the action of reset.

Perambulator, which is characterized in that the folding stand of the perambulator including any preferred embodiment, further includes: connection institute The front-wheel 62 of 6 lower end of foreleg bar is arranged in the handrail 72 for stating push-pull rod 7, and the rear-wheel of 8 lower end of back leg bar is arranged in 82。

Claims (9)

1. the folding stand of perambulator, including frame body (9), the frame body (9) includes foreleg bar (6), push-pull rod (7), back leg bar (8), main joint (1), the foreleg bar (6), push-pull rod (7), back leg bar (8) are two and about the frame body (9) middle line It is symmetrical arranged, foreleg bar (6) upper end passes through institute with the ipsilateral push-pull rod (7) lower end, the back leg bar (8) upper end It is hinged to state main joint (1), characterized in that the foreleg bar (6), push-pull rod (7), back leg bar (8) are tubing, described It is equipped with and returns the vehicle to the garage and knock off hook (71) at the main joint (1) on the push-pull rod (7) of frame body (9) side, the hook that returns the vehicle to the garage and knock off (71) is ipsilateral Foreleg bar (6) on the connector (61) being adapted to the hook that returns the vehicle to the garage and knock off (71), told main joint are equipped at the main joint (1) (1) include preceding joint (11), upper joint (12), posterior joint (13), be equipped with the first bayonet lock (15) in the preceding joint (11), it is described Preceding joint (11), upper joint (12), posterior joint (13) be hinged；

The frame body (9) further include:

Folding-unfolding mechanism (2) is located among the frame body (9), and the folding-unfolding mechanism (2) includes stull (21), mounting bar (22), connects Bar (23), the stull (21) is parallel with the main joint (1) axis, and stull (21) both ends are fixedly connected with trolley folding joint (24), the trolley folding joint (24) is fixedly connected with described mounting bar (22) one end, in the middle part of the mounting bar (22) rotationally It is connected on the foreleg bar (6), the trolley folding joint (24) is hinged with the connecting rod (23) one end and hinged place is equipped with first Torsional spring (231), connecting rod (23) other end are rotatably connected on the back leg bar (8), in the trolley folding joint (24) Equipped with the second bayonet lock (25)；

Bracing wire controller (3), including support (31), control key (32), the first bracing wire (33), the second bracing wire (34), the support (31) it is fixed in the middle part of the stull (21), the control key (32) is fixedly connected with described first bracing wire (33) one end, described First bracing wire (33) other end is fixedly connected with first bayonet lock (15), the control key (32) and second bracing wire (34) One end is fixedly connected,

Second bracing wire (34) other end is fixedly connected with second bayonet lock (25).

2. the folding stand of perambulator according to claim 1, characterized in that the trolley folding joint (24) includes trolley folding joint Seat (241), trolley folding joint lid (242), the trolley folding joint seat (241) are bowl-type, described trolley folding joint seat (241) one side side wall It is equipped with mounting groove (221), the mounting groove (221) is cast, and the mounting groove (221) is from the trolley folding joint seat (241) Center side, which passes through, prolongs and reaches trolley folding joint seat (241) another side side wall inside the trolley folding joint seat (241), described Mounting bar (22) one end is fixedly mounted in the mounting groove (221), and mounting groove (221) outer surface is close to the pass of returning the vehicle to the garage and knock off It saves seat (241) side-walls and is equipped with the second limited block (26), the interior bottom center of trolley folding joint seat (241) is equipped with articulated shaft (232), Be cased with first torsional spring (231) on the articulated shaft (232), articulated shaft (232) side and the mounting groove (221) it Between be equipped with retaining groove (233), described connecting rod (23) one end is rotatably connected on the articulated shaft (232), and with described first (231) one elongated end of torsional spring is kept in contact, and another elongated end of the first torsional spring (231) is arranged in the retaining groove (233), institute It states institute's trolley folding joint seat (241) bottom and is equipped with pin hole (251) close to sidewall locations, the pin hole (251) is cast and from described Socket joint (241) bottom extends to trolley folding joint seat (241) inside, and second bayonet lock (25) is located at the pin hole (251) it in and can horizontally slip, the trolley folding joint lid (242) is bowl cover type, and is installed in rotation on the trolley folding joint On seat (241), the second card slot (252) are equipped on the inside of the trolley folding joint lid (242), second card slot (252) and described the Two bayonet locks (25) adaptation, the interior lateral edge side wall of trolley folding joint lid (242) are equipped with the second limiting slot (261), second limit It is slided along second limiting slot (261) block (26) end.

3. the folding stand of perambulator according to claim 2, characterized in that the support (31) is by fixed part and support portion Composition, the fixed part are covered in the middle part of the stull (21) and are fixed, and the support portion includes room (311), the room (311) side wall is equipped with torsional spring slot (35), is equipped with the second torsional spring (322) in the torsional spring slot (35), torsional spring slot (35) bottom Equipped with connecting hole (351), room (311) side wall is additionally provided with the first bracing wire hole (331), the second bracing wire hole (341), the control The L-type part that key (32) processed is made of linking arm and key, the linking arm lower end are equipped with connecting shaft (321), the connection Second torsional spring (322) is inserted at axis (321) both ends, then is installed in rotation on the room by the connecting hole (351) (311) in, (322) one elongated end of the second torsional spring is fixedly connected with the linking arm, and second torsional spring (322) is another to prolong Stretch end setting in the torsional spring slot (35), be equipped with the first bracing wire interconnecting piece (324) among the linking arm, the linking arm with Key intersection both ends are equipped with the second bracing wire interconnecting piece (325).

4. the folding stand of perambulator according to claim 3, characterized in that the upper joint (12) by be hinged on it is described before Two parts of joint (11) two sides form, and a part includes third articulated section (43), third interconnecting piece (53), and another part includes 4th articulated section (44), the 4th interconnecting piece (54), third articulated section (43) inside is equipped with the first limiting slot (431), described First limiting slot (431) is that the arc-shaped and center of circle is located at third articulated section (43) center, the first limited block (411) end Portion is slided along first limiting slot (431), is equipped with the first card slot (152) on the outside of first limiting slot (431), and described first Card slot (152) be it is arc-shaped and concentric with first limiting slot (431), the first card slot (152) end is communicated with locked groove (153), the first bayonet lock (15) end is slided along first card slot (152) and the locked groove (153), the third connection Portion (53) section is semicircle and can be inserted into from the push-pull rod (7) lower end, the 4th articulated section (44) structure and described the Three articulated sections (43) symmetrical configuration, the 4th interconnecting piece (54) and third interconnecting piece (53) symmetrical configuration.

5. the folding stand of perambulator according to claim 4, characterized in that it is stupefied to be equipped with connection on the outside of the upper joint (12) (433), the connection stupefied (433) is that circular ring shape is convex stupefied and concentric with first limiting slot (431).

6. the folding stand of perambulator according to claim 5, characterized in that the upper joint (12) includes third articulated section (43), the part of third interconnecting piece (53) is equipped with the first stiffening plate (121), and first stiffening plate (121) is cut with scissors from the third Socket part (43) extends to the third interconnecting piece (53), and first stiffening plate (121) and the third articulated section (43) combine First limiting slot (431) and first card slot (152) are formed together.

7. the folding stand of perambulator according to claim 6, characterized in that the upper joint (12) includes the 4th articulated section (44), the part of the 4th interconnecting piece (54) is equipped with the second stiffening plate (122), and second stiffening plate (122) adds with described first Strong plate (121) structure is identical.

8. the folding stand of perambulator according to claim 7, characterized in that the posterior joint (13) includes the 5th articulated section (45), the 5th interconnecting piece (55), the 5th articulated section (45) are hinged on the outside of the upper joint (12), the 5th articulated section (45) center is equipped with dustproof cover (14), and the 5th interconnecting piece (55) section is round and can insert from back leg bar (8) upper end Enter.

9. perambulator, characterized in that the folding stand including perambulator according to any one of claims 1 to 8, further includes: connection institute The handrail (72) of push-pull rod (7) is stated, the front-wheel (62) in foreleg bar (6) lower end is set, is arranged under the back leg bar (8) The rear-wheel (82) at end.