CN213862392U - Foldable supporting component and baby carriage with same - Google Patents

Abstract

The utility model relates to a folding supporting component and possess this supporting component's bassinet, this supporting component are including being used for external fixed main pole setting and side pole respectively, the side pole setting is two at least and distributes in the both sides of main pole setting, main pole setting slides along length direction and is connected with sliding sleeve and lower sliding sleeve, the both sides of going up the sliding sleeve articulate respectively have the last horizontal pole of being connected with the side pole is articulated, the both sides of sliding sleeve articulate respectively have the sheer pole of being connected with the side pole is articulated down, go up and be fixed with first connecting rod between sliding sleeve and the lower sliding sleeve, the limit structure that sliding sleeve or lower sliding sleeve removed in the restriction is connected to main pole setting, the bottom of main pole setting and side pole setting all is provided with the wheel. This application has through the adjustment of the whole framework of supporting component, makes the weak pivot of this system of lower sliding sleeve obtain abundant protection to effectively reduce the unexpected effect of contracting of frame.

Description

Foldable supporting component and baby carriage with same

Technical Field

The present application relates to the field of strollers, and more particularly, to a foldable support assembly and a stroller having the same.

Background

The baby carriage comprises a tool carriage for babies or children at all ages, wherein the tool carriage is designed for the outdoor activities of the babies to provide convenience, has various models, is generally suitable for the children of 1 to 2 years old, and is used by parents in a walking mode.

The baby carriage is mainly divided into a type A full-function baby carriage and a type B light folding baby carriage, wherein the type A vehicle has full functions but is heavy, the type B vehicle is small and light, can be seated and laid down, does not occupy space in the electric car after being folded, and can be placed in a car trunk or a travelling case.

In addition, a double baby carriage and a three-wheeled baby carriage which can be used by two babies are popular in Europe and America.

In view of the above-mentioned related technologies, the inventor believes that there is a need for a foldable stroller for a family with two infants in real life, and a double stroller is operated by using two hand-held handles, but different from a single stroller, once an accidental unlocking occurs, the double stroller is difficult to restrict the stroller from being folded by operating the handles with two hands due to the existence of two folding areas, and has a larger potential safety hazard than the single foldable stroller; there is a need for a more secure folding stand that reduces the likelihood of accidental retraction of the stroller.

Disclosure of Invention

To reduce the likelihood of accidental retraction of a stroller, a collapsible support assembly and stroller having the same are provided.

In a first aspect, the present application provides a foldable support assembly, which adopts the following technical solutions:

the utility model provides a folding supporting component, is including being used for external fixed main pole setting and side pole respectively, the side pole setting is two at least and distributes in the both sides of main pole setting, main pole setting slides along length direction and is connected with upper sliding sleeve and lower sliding sleeve, the both sides of upper sliding sleeve articulate respectively have the last horizontal pole of being connected with the side pole is articulated, the both sides of lower sliding sleeve articulate respectively have the sheer pole of being connected with the side pole is articulated, be fixed with first connecting rod between upper sliding sleeve and the lower sliding sleeve, main pole setting is connected and is had the limit structure that sliding sleeve or lower sliding sleeve removed in the restriction, the bottom of main pole setting and side pole setting all is provided with the wheel.

By adopting the technical scheme, the supporting component can be used as a back side framework of the double baby carriage, wherein the main vertical rod and the side vertical rod are main weight supporting parts and are generally fixed with other support parts of the baby carriage to keep an upright state, and the upper cross rod and the lower cross rod are combined with the connecting rods and the side vertical rods to form a complete double-quadrilateral frame body structure supported on the main supporting frame. The upper sliding sleeve and the lower sliding sleeve move synchronously through the connecting rod, and the upper cross rod and the lower cross rod can be unfolded or drawn close to the distance between the main upright rod and the side upright rod in the process of moving up and down along with the upper sliding sleeve and the lower sliding sleeve until the upper sliding sleeve and the lower sliding sleeve are limited by the limiting structure. At this time, taking the bottom cross bar as an example, two bottom cross bars are arranged at two sides of the main vertical bar, and the rotation center is positioned at the side vertical bar, i.e. the farther the bottom cross bar is from the bottom sliding sleeve, the more difficult the support stable state of the bottom sliding sleeve and the bottom cross bar is damaged when the part is subjected to an upward impact force; the lower sliding sleeve is positioned on the main upright rod, the main upright rod is a main supporting part, namely the impact on the lower sliding sleeve is not easy to be disturbed by the main upright rod and wheels and is not easy to be directly impacted to be separated from a stable state.

For example, when a baby carriage applying the supporting assembly walks on a road surface with stones or similar solid impurities, in order to ensure that a baby can normally walk, at least the main vertical rod and the side vertical rods are required to avoid the stones, or even if the baby carriage collides with the stones, wheels firstly contact the stones and then avoid the stones, so that the stones cannot directly contact the system weak hinge of the lower sliding sleeve, meanwhile, people cannot easily lift the lower sliding sleeve in the process, and the possibility of accidental contraction of the frame is effectively reduced.

Optionally, the limiting structure includes a support connected to the main upright rod, and when the hinge point of the two upper cross rods is maintained on the same horizontal plane and the connection line of the hinge point is perpendicular to the side upright rod, the upper sliding sleeve just abuts against the support.

Through adopting above-mentioned technical scheme, the position that the sliding sleeve can be accurate in the last horizontal pole of falling in the dead point on the bearing piece messenger to prevent to go up the sliding sleeve and continue to fall because of gravity, stable dead point state that keeps, and when going up the horizontal pole and being in the dead point position, the side pole setting will unable compression horizontal pole, thereby makes whole supporting component be in stable expansion state.

Optionally, limit structure is including sliding the supporting piece who connects in main pole setting, it has the second connecting rod to articulate between side pole setting and the supporting piece, spacing hole has been seted up to the lateral wall of going up the sliding sleeve, the lateral wall of supporting piece is fixed with the cantilever, is provided with on the cantilever to slide the spacing card protruding that the sleeve breaks away from the supporting piece with spacing hole cooperation restriction.

By adopting the technical scheme, the second connecting rod enables the supporting piece to be positioned at a determined position in the unfolded state of the whole frame body and float along with the contraction of the frame body, so that enough space is provided for the expansion of the upper cross rod, the lower cross rod, the upper sliding sleeve and the lower sliding sleeve; after the limiting clamping protrusions are matched with the limiting holes, the upper sliding sleeve and the bearing piece can be connected into a stressed whole to limit the floating of the bearing piece and the upper sliding sleeve; at this time, the second connecting rod becomes a reinforcing structure in the double-quadrilateral frame body structure, and the structural stability is improved.

Optionally, one side that the supporting piece was kept away from to spacing calorie of protruding is provided with the spigot surface, the lateral wall of going up the sliding sleeve articulates there is the handle, the handle is fixed with along the handle turn up along spacing protruding spigot surface of card with spacing protruding separating plate who extrudes spacing hole of card.

By adopting the technical scheme, the unlocking sheet is clamped into the gap between the limiting clamping protrusion and the upper sliding sleeve along the guide surface of the limiting clamping protrusion while the handle is pulled upwards, so that the limiting clamping protrusion is separated from being matched with the limiting hole; at the moment, the handle can also move the upper sliding sleeve upwards along with the movement, and the contraction action can be completed only by a single hand.

Optionally, an elastic protrusion protruding from the surface of the main upright rod due to elasticity penetrates through the side wall of the main upright rod, the elastic protrusion blocks a sliding path of the upper sliding sleeve, an accommodating groove for the elastic protrusion to be embedded into is formed in the side wall of the upper sliding sleeve, and a pressing plate for pressing the elastic protrusion into the main upright rod is hinged to the upper sliding sleeve; the hinged part of the pressing plate is positioned on one side of the upper sliding sleeve, which is far away from the handle, and the pressing part of the pressing plate is positioned on one side of the upper sliding sleeve, which is connected with the handle.

By adopting the technical scheme, the elastic bulge and the accommodating groove form a locking structure, the limitation comes from the main upright stanchion and can form double locking with the locking structure of the limiting clamping bulge, the safety coefficient is high, the possibility of frame shrinkage caused by misoperation is reduced, and the limiting relation between the sliding sleeve and the supporting piece and the main upright stanchion is also strengthened; and because of the position design of the pressing part of the pressing plate, an operator can complete double unlocking and contraction actions with one hand, and the operation is very convenient.

Optionally, the lateral wall of main pole setting is worn to be equipped with by the elastic bulge in the elastic bulge on main pole setting surface, the elastic bulge blocks in the route of sliding of last sliding sleeve, the holding tank that supplies the protruding embedding of elasticity is seted up to the lateral wall of going up the sliding sleeve, it has the clamp plate of impressing the elastic bulge in the main pole setting to go up to articulate on the sliding sleeve.

By adopting the technical scheme, the elastic bulge and the accommodating groove form a locking structure, and the limitation comes from the main upright stanchion and can be independently used as the locking limit of the upper sliding sleeve; the double-locking mechanism can also form double locking with a locking structure of the limiting clamping protrusion, has high safety factor, reduces the possibility of frame shrinkage caused by misoperation, and strengthens the limiting relation between two support systems of the sliding sleeve and the bearing piece and the main upright rod.

Optionally, holding tank week side is sealed, the elastic bulge of main pole setting is equipped with two and can fall into the holding tank simultaneously in, two elastic bulge distribute about being, the clamp plate inboard is equipped with presses the bump and supplies elastic bulge to press the slide of bump smooth transition by the inside wall.

By adopting the technical scheme, the two elastic bulges can form bidirectional floating limit with the accommodating groove, and when one elastic bulge fails, the other elastic bulge still can play a limiting role, and the failure can be judged as damage or accidental retraction into the main upright rod; the slideway can be quickly unlocked only by long pressing and pulling up once under the condition of connection of the double elastic bulges.

In a second aspect, the application provides a baby carriage, which comprises a support assembly, a plurality of vertical frames and a plurality of scissor type telescopic frames, wherein the vertical frames and the support assembly are matched to form a complete frame; at least two scissor type expansion brackets are connected between adjacent vertical frames; and wheels are arranged at the bottoms of the plurality of vertical frames.

Through adopting above-mentioned technical scheme, the grudging post has constituted the anterior segment structure of bassinet with cutting the fork expansion bracket, and a plurality of grudging posts have constituted the overall structure of frame with cutting the fork expansion bracket, and make the frame possess with supporting component assorted lateral contraction ability.

Optionally, the vertical frame includes an oblique rod and a longitudinal rod, the oblique rod and the longitudinal rod corresponding to the main vertical rod are hinged to the main vertical rod in pairs by side walls, and the oblique rod and the longitudinal rod corresponding to the side vertical rod are hinged to the side vertical rod in pairs by side walls; the middle part disconnection of down tube and be provided with articulated joint, the contained angle of the orientation supporting component of two parts of down tube disconnection is a, one side of articulated joint orientation supporting component is equipped with prevents that contained angle a from continuing to reduce when contained angle a reachs certain predetermined angle that is less than 180 of settlement and ends the spinning disk, and this articulated joint is located the top of vertical pole, down tube, main pole setting and side pole setting articulated rotation center line each other are parallel to each other.

By adopting the technical scheme, the integral frame can be folded and unfolded in the front-rear direction through the bending of the diagonal rods except for transverse folding and shrinking, the shrinkage rate of the frame is further improved, after the frame is unfolded, the unfolding angle a of the two parts of the diagonal rods is smaller than 180 degrees, namely, the frame is in a convex state, and the distance between the hinged ends can be shortened in the longitudinal direction based on the characteristic of the scissor-fork type telescopic frame when the whole frame is unfolded in the transverse direction, so that the diagonal rods are forced to turn outwards continuously instead of turning inwards, but the turning outwards can be limited by the rotation stopping sheets, and the stable unfolding state can be quickly reached.

Optionally, a pedal is arranged on the top or the side wall of the lower sliding sleeve.

By adopting the technical scheme, the pedal plate can be stepped by feet to promote the whole framework to be unfolded when the framework is unfolded, so that the operation is more convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the weak pivot of the system of the lower sliding sleeve is fully protected by adjusting the whole framework of the supporting component, so that the possibility of accidental contraction of the frame is effectively reduced.

2. The elastic bulge and the accommodating groove form a locking structure, and the elastic bulge and the accommodating groove form double locking with the locking structure of the limiting clamp bulge, so that the safety coefficient is high, and the possibility of shrinkage of the frame caused by misoperation is reduced.

3. Based on the position design of the pressing part of the pressing plate and the design of the handle linkage unlocking plate, an operator can complete double unlocking and contraction actions with one hand, and the operation is convenient.

4. The whole frame can be folded transversely and can be turned and folded through the bending of the diagonal rods in the front and rear directions, the shrinkage rate of the frame is further improved, and after the frame is unfolded, a stable unfolding state can be automatically achieved due to gravity.

Drawings

Fig. 1 is an overall configuration diagram of a stroller of embodiment 1.

Fig. 2 is an overall configuration diagram of the support assembly of embodiment 1.

Fig. 3 is an exploded view of the spacing structure and associated components of example 1.

Fig. 4 is a structural diagram of a stopper structure and related components of embodiment 1.

Fig. 5 is a schematic structural view of the pressing plate and the elastic protrusions of embodiment 1.

Fig. 6 is a schematic structural view of the diagonal member of embodiment 1 after detachment.

Fig. 7 is a configuration diagram of the stroller of embodiment 1 after being folded in a collapsed state.

Description of reference numerals: 1. erecting a frame; 11. a diagonal bar; 111. an articulation joint; 112. a rotation stopping sheet; 12. a longitudinal bar; 2. a scissor-fork type telescopic frame; 21. a flexible band; 3. a main upright stanchion; 31. an elastic bulge; 32. a reed; 33. a hook is clamped; 4. a side upright rod; 5. an upper sliding sleeve; 51. a limiting hole; 52. a handle; 53. unlocking the plate; 54. accommodating grooves; 55. pressing a plate; 551. pressing the salient points; 552. a slideway; 553. pressing the part; 6. a lower sliding sleeve; 61. a foot pedal; 62. a first link; 7. an upper cross bar; 8. a lower cross bar; 9. a limiting structure; 91. a support member; 911. a cantilever; 912. limiting clamping protrusions; 92. a second link; 10. a support assembly; 101. and (7) wheels.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a foldable supporting component and a baby carriage with the same. Referring to fig. 1, this bassinet includes supporting component 10, grudging post 1 and cuts fork expansion bracket 2, and in this embodiment, grudging post 1 has three and arranges each other side by side, and every adjacent two of grudging post 1 divide into a set of, even has two to cut fork expansion bracket 2 and a flexible band 21 between every group grudging post 1, and two are cut fork expansion bracket 2 and are laid with its fork plane tiling and slant respectively of cutting. Thus, a three-dimensional support frame at the front part of the baby carriage is formed and is provided with two spaces for placing a baby deck chair or a seat, the support assembly 10 is connected to the back part of the stand 1 to be used as a support for the back part of the baby carriage and limit the maximum transverse extension amplitude together with the flexible belt 21, and the flexible belt 21 can be made of nylon, cloth and other materials.

Referring to fig. 1 and 2, the supporting assembly 10 includes a main upright 3 and side uprights 4 which are vertically distributed and parallel to each other, in this embodiment, the two side uprights 4 are distributed on two sides of the main upright 3, the upright 1 located in the middle is connected with the main upright 3, and the other two uprights 1 are respectively connected with the side uprights 4.

Referring to fig. 2, the main upright rod 3 is connected with an upper sliding sleeve 5 and a lower sliding sleeve 6 in a sliding manner along the length direction, both sides of the upper sliding sleeve 5 are respectively hinged with an upper cross rod 7 hinged with the side upright rods 4, and both sides of the lower sliding sleeve 6 are respectively hinged with a lower cross rod 8 hinged with the side upright rods 4. A first connecting rod 62 is fixed between the upper sliding sleeve 5 and the lower sliding sleeve 6, so that the upper sliding sleeve 5 and the lower sliding sleeve 6 keep consistent in movement, can reach or separate from a dead point state at the same time, and can also complete unlocking or locking at the same time. The unlocking or locking is accomplished by a limiting structure 9, which mainly limits the movement of the upper sliding sleeve 5.

Limiting structure 9 is divided into two locking parts, can cooperate and produce the locking, reduces the risk of unexpected unblock.

Referring to fig. 2 and 3, the first locking portion of the limiting structure 9 includes a support 91 slidably connected to the main upright 3, a second connecting rod 92 is hinged between the support 91 and the side upright 4, and a hinge point at the bottom end of the second connecting rod 92 coincides with and is coaxial with a hinge point of the lower cross bar 8. When the upper cross bar 7 and the lower cross bar 8 are both located at the dead point position, the upper sliding sleeve 5 just abuts against the supporting member 91. The dead point position is exemplified by the upper cross bar 7, and at this time, four hinge points of the two upper cross bars 7 are maintained at the same horizontal plane and the connecting lines of the four hinge points are perpendicular to the side upright bars 4.

The side wall of the supporting piece 91 is fixed with a cantilever 911, the inner side of the cantilever 911 is integrally formed with a limiting clamping protrusion 912, the side wall of the upper sliding sleeve 5 is provided with a limiting hole 51, and the limiting clamping protrusion 912 is matched with the limiting hole 51 to limit the upper sliding sleeve 5 to be separated from the supporting piece 91. The side of the limiting clamping protrusion 912, which is far away from the supporting piece 91, is provided with a guide surface, the side wall of the upper sliding sleeve 5 is hinged with a handle 52, the side wall of the handle 52, which corresponds to the hinged position of the handle 52, is fixed with an unlocking sheet 53, and when the handle 52 is turned upwards, the unlocking sheet 53 extrudes the limiting clamping protrusion 912 out of the limiting hole 51 along the guide surface of the limiting clamping protrusion 912, so that the locking of the first locking part is released.

Referring to fig. 1 and 4, the second locking portion of the limiting structure 9 includes two elastic protrusions 31 penetrating through the side walls of the main vertical rod 3 and protruding out of the surface of the main vertical rod 3, the two elastic protrusions 31 are vertically distributed and blocked from the sliding path of the upper sliding sleeve 5, and a spring 32 providing elasticity for the elastic protrusions 31 and welded and fixed with the elastic protrusions 31 is disposed in the hollow inner cavity of the main vertical rod 3. The side wall of the upper sliding sleeve 5 is provided with a holding groove 54, and the periphery of the holding groove 54 is closed and can be used for the two elastic protrusions 31 to be embedded simultaneously.

Referring to fig. 4 and 5, the upper sliding sleeve 5 is hinged with a pressing plate 55, and the pressing plate 55 is provided with a pressing bump 551 and a slide 552 on the inner side, and the pressing bump 551 has a thickness enough to press the elastic protrusion 31 into the main upright 3 when the pressing plate 55 is pressed. When the pressing plate 55 presses the lower elastic protrusion 31, the upper elastic protrusion 31 is located on the inner sidewall of the pressing plate 55, and in the process that the pressing plate 55 moves upwards along with the upper sliding sleeve 5, the upper elastic protrusion 31 smoothly transits from the inner sidewall to the pressing bump 551 through the slide 552 until being squeezed by the pressing bump 551 to separate from the receiving groove 54. The second locking portion is completely unlocked only after both the elastic protrusions 3 are disengaged from the receiving grooves 54.

In order to improve the operation experience, the hinged position of the pressure plate 55 is located on the side of the upper sliding sleeve 5 away from the handle 52, and the pressing position 553 of the pressure plate 55 is located on the side of the upper sliding sleeve 5 connected with the handle 52, so that the handle 52 can just press the pressing position 553 of the pressure plate 55 with the thumb during the lifting process. Also, the unlocking of the two locking portions of the stop structure 9 can thus be done with one hand. The top or side wall of the lower sliding sleeve 6 is also integrally formed with a foot pedal 61 which can be opened with the aid of the foot when it is unfolded.

Referring to fig. 1, the vertical frame 1 includes an inclined bar 11 and a vertical bar 12, the inclined bar 11 and the vertical bar 12 corresponding to the main vertical bar 3 are hinged to the main vertical bar 3 with side walls in pairs, respectively, the inclined bar 11 and the vertical bar 12 corresponding to the side vertical bar 4 are hinged to the side walls in pairs, respectively, and the main vertical bar 3, the inclined bar 11 and the vertical bar 12 are overlapped to form a triangular structure without considering the bending of the bars themselves, taking the main vertical bar 3 as an example.

Referring to fig. 1 and 6, the middle of the sway bar 11 is broken and provided with a hinge joint 111, the angle of the broken two parts of the sway bar 11 facing the support assembly 10 is a, and one side of the hinge joint 111 facing the support assembly 10 is provided with a rotation stop tab 112 for preventing the angle a from continuously reducing when the angle a reaches a preset angle smaller than 180 °, for example, the preset angle is 170 °. The hinge joint 111 is located above the vertical rod 12, and the vertical rod 12, the diagonal rod 11, the main upright rod 3 and the side upright rod 4 are hinged with each other, and the rotation center lines of the hinge joints 111 of the diagonal rod 11 are parallel to each other. In this way, the entire frame of the baby carriage can be folded transversely and also folded in a front-rear direction by bending the diagonal rods 11.

In addition, wheels 101 are connected to the bottoms of the main upright posts 3, the side upright posts 4 and the diagonal posts 11. And the wheel 101 of the main upright 3 is at least sized to cover the projection of the lower sliding sleeve 6 on the horizontal plane.

The implementation principle of a foldable support assembly 10 and a baby carriage with the same 10 in the embodiment of the application is as follows:

unlocking and contracting operation, and finally contracting from the state of fig. 1 to the state of fig. 7, wherein the specific operation is as follows:

the handle 52 is held by hand to turn the handle 52 upwards, the unlocking sheet 53 on the handle 52 pushes the limiting clamp protrusion 912 to unlock the first locking part of the limiting structure 9 in the process, and then the pressing plate 55 is continuously pressed by the thumb to push the elastic protrusion into the main vertical rod 3. At this time, the handle 52 is kept pressed and lifted up, so that the overall frame is transversely contracted, the distance between the vertical frames 1 is greatly shortened, meanwhile, the scissor-type telescopic frame 2 is transversely shortened and longitudinally extended, but the length of the vertical rod 12 is unchanged, so that the inclined rod 11 turns inwards with the joint as a turning point and is in a loose state, and at this time, if the handle 52 is continuously lifted up and the main vertical rod 3 turns towards the front wheel 101, the front wheel 101 finally turns to a position close to the top end of the near vertical rod 4. Thereby completing the vehicle-collecting action. In order to keep the folding state, the side upright rod 4 can be additionally provided with a clamping hook 33 to hook the finally folded diagonal rod 11.

Vehicle body unfolding operation:

the operation is reversed according to the vehicle-retracting operation steps, and then the pedal of the sliding sleeve 6 is stepped down by feet to open the vehicle body to a final state.

Embodiment 2 is different from embodiment 1 in that a support 91 is fixed to a main support bar and a second link 92 is eliminated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A collapsible support assembly, characterized by: including being used for external fixed main pole setting (3) and side pole setting (4) respectively, side pole setting (4) are two at least and distribute in the both sides of main pole setting (3), main pole setting (3) slide along length direction and are connected with upper sliding sleeve (5) and lower sliding sleeve (6), the both sides of upper sliding sleeve (5) articulate respectively have last horizontal pole (7) of being connected with side pole setting (4) are articulated, the both sides of lower sliding sleeve (6) articulate respectively have down horizontal pole (8) of being connected with side pole setting (4) are articulated, be fixed with first connecting rod (62) between upper sliding sleeve (5) and lower sliding sleeve (6), main pole setting is connected and is had limit structure (9) that sliding sleeve (5) or lower sliding sleeve (6) removed in the restriction, the bottom of main pole setting (3) and side pole setting (4) all is provided with wheel (101).

2. A collapsible support assembly as claimed in claim 1, in which: the limiting structure (9) comprises a supporting piece (91) connected to the main upright stanchion (3), and when the hinge joints of the two upper cross rods (7) are kept on the same horizontal plane and the connecting line of the hinge joints is vertical to the side upright stanchions (4), the upper sliding sleeve (5) just abuts against the supporting piece (91).

3. A collapsible support assembly as claimed in claim 1, in which: limiting structure (9) including sliding and connecting in supporting piece (91) of main pole setting (3), it has second connecting rod (92) to articulate between side pole setting (4) and supporting piece (91), spacing hole (51) have been seted up to the lateral wall of going up sliding sleeve (5), the lateral wall of supporting piece (91) is fixed with cantilever (911), is provided with on cantilever (911) with spacing hole (51) cooperation restriction go up sliding sleeve (5) and breaks away from spacing protruding (912) of supporting piece (91).

4. A collapsible support assembly as claimed in claim 3, in which: one side that supporting piece (91) was kept away from to spacing calorie of protruding (912) is provided with the spigot surface, the lateral wall of going up sliding sleeve (5) articulates there is handle (52), handle (52) are fixed with along handle (52) upturn along spacing calorie of protruding (912) spigot surface with spacing calorie of protruding (912) unblock piece (53) of extruding spacing hole (51).

5. A collapsible support assembly as claimed in claim 4, in which: an elastic bulge (31) which is elastically protruded out of the surface of the main upright rod (3) penetrates through the side wall of the main upright rod (3), the elastic bulge (31) blocks a sliding path of the upper sliding sleeve (5), and an accommodating groove (54) for the elastic bulge (31) to be embedded into is formed in the side wall of the upper sliding sleeve (5); go up articulated on sliding sleeve (5) have and impress clamp plate (55) in main pole setting (3) with elastic bulge (31), the articulated position of clamp plate (55) is located one side that last sliding sleeve (5) deviate from handle (52), the pressing position (553) of clamp plate (55) are located one side that last sliding sleeve (5) even have handle (52).

6. A collapsible support assembly as claimed in any one of claims 1 to 4, in which: the lateral wall of main pole setting (3) is worn to be equipped with by elastic bulge in the elastic bulge (31) on main pole setting (3) surface, elastic bulge (31) block in the route of sliding of last sliding sleeve (5), holding tank (54) of confession elastic bulge (31) embedding are seted up to the lateral wall of going up sliding sleeve (5), it has clamp plate (55) of impressing elastic bulge (31) in main pole setting (3) to go up articulated on sliding sleeve (5).

7. A collapsible support assembly as claimed in claim 6, in which: the peripheral sides of the accommodating grooves (54) are closed, two elastic protrusions (31) of the main upright stanchion (3) are arranged and can fall into the accommodating grooves (54) simultaneously, the two elastic protrusions (31) are distributed up and down, and the inner side of the pressing plate (55) is provided with pressing bumps (551) and slideways (552) for the elastic protrusions (31) to smoothly transition from the inner side wall to the pressing bumps (551).

8. A stroller, characterized in that: the supporting component (10) comprises a plurality of vertical frames (1) and a plurality of scissor type telescopic frames (2) which are matched with the supporting component (10) to form a complete vehicle frame, wherein the vertical frames (1) are respectively connected with a main upright (3) and a side upright (4) in a one-to-one correspondence manner; at least two scissor type expansion brackets (2) are connected between the adjacent vertical frames; the bottom of the plurality of the vertical frames (1) is provided with wheels (101).

9. A stroller according to claim 8, wherein: the vertical frame (1) comprises inclined rods (11) and longitudinal rods (12), the inclined rods (11) and the longitudinal rods (12) corresponding to the main vertical rods (3) are hinged with the main vertical rods (3) in pairs through side walls, and the inclined rods (11) and the longitudinal rods (12) corresponding to the side vertical rods (4) are hinged with the side vertical rods (4) in pairs through side walls; the utility model discloses a swing arm, including down tube, diagonal, articulated joint (111) just are provided with in the middle part disconnection of diagonal (11), the contained angle of the orientation supporting component (10) of two parts of diagonal (11) disconnection is a, articulated joint (111) are equipped with in one side of supporting component (10) and prevent that contained angle a continues to reduce when contained angle a reachs certain predetermined angle that is less than 180 of settlement and stop rotating plate (112), and this articulated joint (111) are located the top of vertical pole (12), diagonal (11), main pole setting (3) and side pole setting (4) articulated center of rotation line between each other are parallel to each other.

10. A stroller according to claim 8, wherein: the top or the side wall of the lower sliding sleeve (6) is provided with a pedal (61).

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