CN207523772U - A kind of perambulator - Google Patents

Abstract

The utility model discloses a kind of perambulators, the first supporting leg and the second supporting leg including being connected with wheel, first supporting leg is equipped with lateral lateral shaft, the first turning set that can be rotated to it is connected on lateral shaft, being also associated on lateral shaft only after the first turning set rotates could the second turning set for moving of relatively transverse shaft rotation, second turning set lower end connects the second supporting leg, the locking device that the first turning set can be prevented to rotate is equipped between first turning set and lateral shaft, first rotation set upper side is connected with the supporting rod that can be rotated with it, the handspike that can slide and can be driven after glide downwards locking device to unlock up and down in it is equipped in supporting rod, the buckling and locking device of both lockings is equipped between handspike and supporting rod.The utility model is simple in structure, easy to operate, and volume after folding is small.

Description

A kind of perambulator

【Technical field】

The utility model is related to a kind of perambulators.

【Background technology】

At present, perambulator has become child's article indispensable in developmental process.Perambulator in the market is generally all It can be folded or be unfolded, but existing baby carriage skeleton structure is complicated, volume after folding is still larger.Therefore, Ren Menfei Often thirst for perambulator a kind of easy to use, simple in structure and small volume after folding to occur.In addition, the brake shape of conventional pushchair The unlock of state needs up to lift brake pedal with instep and the rotation unlock of driving brake pedal, operation are laborious, very not square Just, long-time operation can also damage shoes.

Therefore, the utility model comes into being.

【Utility model content】

The utility model aim is to overcome the deficiencies in the prior art, provide it is a kind of simple in structure, it is easy to operate, after folding Small perambulator.

The utility model is achieved through the following technical solutions：

A kind of perambulator, it is characterised in that：The first supporting leg 1 and the second supporting leg 2 including being connected with wheel 100, institute The first supporting leg 1 stated is equipped with lateral lateral shaft 3, and can rotate to it first turn is connected on the lateral shaft 3 Dynamic set 4, being also associated on the lateral shaft 3 only after the first turning set 4 rotate could be second turn of the relatively transverse rotation of axis 3 Dynamic set 5,5 lower end of the second turning set connection, second supporting leg 2, first turning set 4 and lateral shaft 3 it Between be equipped with can prevent the first turning set 4 rotate locking device 6,4 upper end of the first turning set is connected with and can rotate with it Supporting rod 7, being equipped in the supporting rod 7 can up and down slide in it and locking device 6 can be driven after glide downwards The handspike 8 of unlock is equipped with the buckling and locking device 9 of both lockings between the handspike 8 and supporting rod 7.

Perambulator as described above, it is characterised in that：The locking device 6 includes being located in lateral shaft 3 and can be along horizontal stroke The locking pin 61 radially slided to axis 3, first turning set 4 are equipped with the lock slots 62 that locking pin 61 can be supplied to be inserted into, institute The end of locking pin 61 stated is in cambered surface, and 8 lower end of handspike has the cambered surface groove to match with 61 end of locking pin 63, the first spring 64 that locking pin 61 can be made to be maintained in lock slots 62 is additionally provided between the locking pin 61 and lateral shaft 3.

Perambulator as described above, it is characterised in that：The buckling and locking device 9 includes being hinged on being hinged on handspike 8 Arm 91, the articulated jib 91 are equipped with the lock part 92 extended to one side, and the supporting rod 7, which is equipped with, can supply lock part The latch hole 93 that 92 one end are caught in is additionally provided with the adjutage 94 extended to its opposite side, the hand on the articulated jib 91 Be equipped with the drag-line 95 for being connect with adjutage 94 and articulated jib 91 being pulled to rotate in push rod 8, the handspike 8 and articulated jib 91 it Between be additionally provided with the second spring 96 that lock part 92 and latch hole 93 can be made to keep clamping lock.

Perambulator as described above, it is characterised in that：Described its circumferential direction of 5 upper edge of the second turning set is equipped with limit hole 10, set the protrusion post 11 for penetrating limit hole 10 on the lateral shaft 3,5 upper edge of the second turning set its justify circumferential direction Limiting slot 12 is additionally provided with, first turning set 4 is equipped with the limited post 13 snapped onto in limiting slot 12, is unfolded in perambulator When, the limited post 13 and protrusion post 11 prevent the second turning set 5 respectively against the side wall of limiting slot 12 and limit hole 10 Rotation.

Perambulator as described above, it is characterised in that：Second supporting leg, 2 lower end, which is equipped with, can limit wheel 100 The brake assemblies 14 of rotation, the brake assemblies 14 include the first brake seat for being respectively provided at two second supporting leg, 2 lower ends 141 and second brake mount 142,141 and second brake mount 142 of first brake seat connect with wheel 100, described Be connected on one brake mount 141 after being trampled by foot can rotate to it and in rotation can driving brake pin 140 lock wheel 100 Rotation pedal 143, between the rotation pedal 143 and first brake seat 141 be equipped with can drive rotation pedal 143 rotate answer The (the first back-moving spring 144 of position, be equipped in described second brake mount 142 through horizontal axis 145 connect with rotating pedal 143 and Rotation pedal 143 can follow the moving block 146 of rotation when rotating, be set between 146 and second brake mount 142 of moving block There is the second back-moving spring 147 that the rotation of moving block 146 can be driven to reset, brake can be made by being additionally provided on second brake mount 142 Vehicle component 14 keeps braking state and the driving part 15 that after being trampled by foot brake assemblies 14 can unlock.

Perambulator as described above, it is characterised in that：The driving part 15 includes being located on moving block 146 and edge turns The arcuate socket 151 of 146 circumferencial direction of motion block extension is additionally provided on the moving block 146 and is communicated with arcuate socket 151 and along rotation The bar hole 152 of 146 radial direction of block extension, is connected with the stampede part 153 that can be trampled on second brake mount 142, The stampede part 153, which is equipped with, can be caught in the card column 154 of bar hole 152 and arcuate socket 151, the stampede part 153 with The third spring 155 that card column 154 can be made to be maintained in bar hole 152 is additionally provided between second brake mount 142.

Perambulator as described above, it is characterised in that：The stampede part 153 includes hinged with the second brake mount 142 Hinge bar 1531, the hinge bar 1531 are equipped with the bent rod 1532 being folded upward at, and the bent rod 1532 is equipped with The stampeding section 1533 of the second brake mount 142 is exposed to, the card column 154 is set on hinge bar 1531 or bent rod 1532.

Perambulator as described above, it is characterised in that：Second brake mount 142 is equipped with spring groove 156, described Bent rod 1532 is equipped with protrusion 157, and the third spring 155 is located in spring groove 156, and third spring 155 Upper end is acted against on protrusion 157.

Perambulator as described above, it is characterised in that：The rotation pedal 143 is equipped with the first arc groove of indent 148a, the inner wall of the first brake seat 141 are equipped with the first positive stop lug boss 148b that can extend into the first arc groove 148a, The (the first back-moving spring 144 is arranged between the first arc groove 148a cell walls and the first positive stop lug boss 148b；Described turns Motion block 146 is equipped with the second arc groove 149a of indent, and the inner wall of second brake mount 142, which is equipped with, can extend into second The second positive stop lug boss 149b of arc groove 149a, the second back-moving spring 147 be arranged on the second arc groove 149a cell walls with Between second positive stop lug boss 149b.

Perambulator as described above, it is characterised in that：The perambulator, which further includes, can make it keep consolidating for folded state Lock assembly 16, the solid lock component 16 include the sliding part 161 that opposite 7 or first turning set of supporting rod of energy slides about 4, institute The lateral shaft 3 stated is equipped with jack, is connected on the sliding part 161 and can engage after the rotation of the first turning set 4 with jack Bolt 162, being additionally provided between 7 or first turning set 4 of the sliding part 161 and supporting rod can be such that bolt 162 is protected with jack Hold the 4th spring of conjunction.

Compared with prior art, the utility model has the following advantages：

1st, the utility model perambulator fold when, unlock buckling and locking device first, push handspike in supporting rod to Under slide, the lower end of handspike just drives locking device to unlock when being retracted into certain position in supporting rod, at this time the first turning set The relatively transverse shaft rotation of energy is moved, post upper is just drawn close to the second supporting leg, after the rotation of the first turning set, the second rotation Set also just can relatively transverse shaft rotation move, so when supporting rod is drawn close to the second supporting leg after, need to be lifted up lateral shaft, second Supporting leg and supporting rod can just be drawn close to the first supporting leg, so as to fulfill the folding of entire perambulator.Entire stroller configuration letter Single, folding convenient, volume after folding is small, easy to carry.

2nd, the utility model is when perambulator is unfolded, and protrusion post and limited post are respectively against the side of limit hole and limiting slot Wall, so as to which the second turning set be prevented to rotate.When the first turning set rotates, the limited post on the first turning set is just in limiting slot It slides, limited post is no longer abut against the cell wall of limiting slot so that the second turning set being capable of relatively transverse the first supporting leg of axial direction side Rotation.The hole wall of protrusion post and limit hole can prevent the second supporting leg of the perambulator of expansion against cooperation to far from first The direction rotation of support leg.Total is ingenious in design so that perambulator realizes the folding of supporting rod and the second supporting leg when folding The interlocked control of folded action so that stroller configuration is more compact.

3rd, the utility model perambulator need to only trample rotation pedal when needing brake with foot, and rotation pedal just drives when rotating Dynamic brake pin is snapped onto in wheel, so as to fulfill brake.When rotating pedal rotation, rotation pedal drives second to stop by horizontal axis Moving block rotation in vehicle seat, (the first back-moving spring and second back-moving spring are compressed at this time, and moving block is rotating When, the card column in arcuate socket can be moved in bar hole.Since card column is snapped onto in bar hole so that moving block cannot continue to turn It is dynamic, so as to which the braking state for making perambulator is maintained.When perambulator needs walking, stampede part is stepped on downwards with foot, card column is just It is exited into out of bar hole to arcuate socket, card column cannot limit the rotation of moving block at this time, and second back-moving spring is just driven Turn motion block rotates, and card column continues to slide into arcuate socket so that the braking state of perambulator releases.Therefore, the brake of perambulator Vehicle or brake unlock are completed by using the action that foot is stepped on downwards, and changing conventional pushchair needs up to lift brake with instep The unlocking manner of pedal, operation is more simple and efficient, and only sole stress, will not damage shoes.

4th, the utility model is simple and compact for structure, and folding volume is small, easy to operate, of low cost, is suitble to promote and apply.

【Description of the drawings】

Fig. 1 is one of the utility model stereogram；

Fig. 2 is the two of the utility model stereogram；

Fig. 3 is the utility model exploded view；

Fig. 4 is the enlarged view at A in Fig. 3；

Fig. 5 is the exploded view of the component of the utility model；

Fig. 6 is the sectional view of the utility model；

Fig. 7 is the enlarged view at B in Fig. 6；

Fig. 8 is the enlarged view at C in Fig. 6；

Fig. 9 is one of stereogram of component of the utility model；

Figure 10 is the two of the stereogram of the component of the utility model；

Figure 11 is the three of the stereogram of the component of the utility model；

Figure 12 is one of exploded view of component of the utility model；

Figure 13 is the stereogram of the rotation pedal of the utility model；

Figure 14 is the two of the exploded view of the component of the utility model.

【Specific embodiment】

The utility model is further described below in conjunction with the accompanying drawings：

As shown in Figures 1 to 8, a kind of perambulator, the first supporting leg 1 and the second supporting leg including being connected with wheel 100 2, first supporting leg 1 is equipped with lateral lateral shaft 3, and can rotate to it the is connected on the lateral shaft 3 One turning set 4, be also associated on the lateral shaft 3 only after the first turning set 4 rotates could relatively transverse axis 3 rotate the Two turning sets 5,5 lower end of the second turning set connection, second supporting leg 2, first turning set 4 and transverse direction The locking device 6 that the first turning set 4 can be prevented to rotate is equipped between axis 3,4 upper end of the first turning set is connected with can be with it The supporting rod 7 of rotation, interior be equipped with of the supporting rod 7 can up and down slide in it and locking dress can be driven after glide downwards The handspike 8 of 6 unlocks is put, the buckling and locking device 9 of both lockings is equipped between the handspike 8 and supporting rod 7.Perambulator is being rolled over It when folded, first unlocks buckling and locking device 9, pushes the glide downwards in supporting rod 7 of handspike 8, the lower end of handspike 8 is retracted into branch Locking device 6 is just driven to unlock during certain position in strut 7, just the relatively transverse axis 3 of energy rotates the first turning set 4 at this time, supports 7 upper end of bar is just drawn close to the second supporting leg 2, and after the rotation of the first turning set 4, the second turning set 5 also just can relatively transverse axis 3 Rotation so after supporting rod 7 is drawn close to the second supporting leg 2, only need to be lifted up lateral shaft 3, the second supporting leg 2 and supporting rod 3 can just draw close to the first supporting leg 1, so as to fulfill the folding of entire perambulator.Entire stroller configuration is simple, folding convenient, Volume after folding is small, easy to carry.

As shown in Figure 6 and Figure 8, the locking device 6 includes being located in lateral shaft 3 and transversely axis 3 radially sliding Locking pin 61, first turning set 4 be equipped with can for locking pin 61 insertion lock slots 62, the locking pin 61 End is in cambered surface, and 8 lower end of handspike has the cambered surface groove 63 to match with 61 end of locking pin, the locking pin The first spring 64 that locking pin 61 can be made to be maintained in lock slots 62 is additionally provided between 61 and lateral shaft 3.

As shown in Fig. 2, Fig. 6 and Fig. 7, the buckling and locking device 9 includes the articulated jib 91 being hinged on handspike 8, described Articulated jib 91 be equipped with the lock part 92 that extend to one side, the supporting rod 7 is equipped with can supply 92 one end card of lock part The latch hole 93 entered is additionally provided with the adjutage 94 extended to its opposite side on the articulated jib 91, is set in the handspike 8 There is the drag-line 95 for being connect with adjutage 94 and articulated jib 91 being pulled to rotate, be additionally provided between the handspike 8 and articulated jib 91 Lock part 92 can be made to keep the second spring 96 of clamping lock with latch hole 93.

As shown in Figures 3 to 5, described its circumferential direction of 5 upper edge of the second turning set is equipped with limit hole 10, the transverse direction The protrusion post 11 for penetrating limit hole 10 is set on axis 3, its circle circumferential direction of 5 upper edge of the second turning set is additionally provided with limiting slot 12, first turning set 4 is equipped with the limited post 13 snapped onto in limiting slot 12, when perambulator is unfolded, the limit Position column 13 and protrusion post 11 prevent the second turning set 5 from rotating respectively against the side wall of limit hole 10 and limiting slot 12.When first When turning set 4 rotates, the limited post 13 on the first turning set 4 just slides in limiting slot 12, and limited post 13 is no longer abut against limiting The cell wall of slot 12 so that the second turning set 5 can relatively transverse axis 3 to 1 side of the first supporting leg rotate.Protrusion post 11 and limiting The hole wall in hole 10 can prevent the second supporting leg 2 of the perambulator of expansion from turning to the direction far from the first supporting leg 1 against cooperation It is dynamic.Total is ingenious in design so that perambulator realizes the connection of the jackknife action of 7 and second supporting leg 2 of supporting rod when folding Lock control so that stroller configuration is more compact.

As shown in Figure 1, Figure 2 with shown in Fig. 9 to Figure 11,2 lower end of the second supporting leg is equipped with and can limit wheel 100 and rotate Brake assemblies 14, the brake assemblies 14 include being respectively provided at 141 Hes of first brake seat of two second supporting leg, 2 lower ends Second brake mount 142,141 and second brake mount 142 of first brake seat are connect with wheel 100, and described first stops Be connected on vehicle seat 141 can rotate to it after being trampled by foot and in rotation can driving brake pin 140 lock turning for wheel 100 Dynamic pedal 143, being equipped between rotation pedal 143 and the first brake seat 141 can drive what the rotation rotation of pedal 143 resetted (the first back-moving spring 144,142 interior be equipped with of the second brake mount are connect and rotated with rotation pedal 143 by horizontal axis 145 Pedal 143 can follow the moving block 146 of rotation when rotating, energy is equipped between 146 and second brake mount 142 of moving block The second back-moving spring 147 of the rotation reset of moving block 146 is driven, brake group can be made by being additionally provided on second brake mount 142 Part 14 keeps braking state and the driving part 15 that after being trampled by foot brake assemblies 14 can unlock.

As shown in Figure 10, Figure 11, Figure 12 and Figure 14, the driving part 15 includes being located on moving block 146 and edge turns The arcuate socket 151 of 146 circumferencial direction of motion block extension is additionally provided on the moving block 146 and is communicated with arcuate socket 151 and along rotation The bar hole 152 of 146 radial direction of block extension, is connected with the stampede part 153 that can be trampled on second brake mount 142, The stampede part 153, which is equipped with, can be caught in the card column 154 of bar hole 152 and arcuate socket 151, the stampede part 153 with The third spring 155 that card column 154 can be made to be maintained in bar hole 152 is additionally provided between second brake mount 142.

As shown in figure 11, the stampede part 153 includes the hinge bar 1531 hinged with the second brake mount 142, described Hinge bar 1531 is equipped with the bent rod 1532 being folded upward at, and the bent rod 1532 is equipped with and exposes to the second brake mount 142 stampeding section 1533, the card column 154 are set on hinge bar 1531 or bent rod 1532.

As shown in figure 14, second brake mount 142 is equipped with spring groove 156, and the bent rod 1532 is equipped with Protrusion 157, the third spring 155 is located in spring groove 156, and the upper end of third spring 155 acts against protrusion On 157.

As shown in Figure 10 and Figure 11, described rotation pedal 143 is equipped with the first arc groove 148a of indent, and described the The inner wall of one brake mount 141 is equipped with the first positive stop lug boss 148b that can extend into the first arc groove 148a, and described first is multiple Position spring 144 is arranged between the first arc groove 148a cell walls and the first positive stop lug boss 148b；The moving block 146 is equipped with Second arc groove 149a of indent, the inner wall of second brake mount 142, which is equipped with, can extend into the second arc groove 149a's Second positive stop lug boss 149b, the second back-moving spring 147 are arranged on the second arc groove 149a cell walls and the second positive stop lug boss Between 149b.

As shown in Figure 2 and Figure 4, the perambulator further includes the solid lock component 16 that it can be made to keep folded state, described Solid lock component 16 include can the sliding part 161 that is slided about 4 of opposite 7 or first turning set of supporting rod, on the lateral shaft 3 It (is not drawn into figure) equipped with jack, is connected with what can be engaged after the rotation of the first turning set 4 with jack on the sliding part 161 Bolt 162, being additionally provided between 7 or first turning set 4 of the sliding part 161 and supporting rod can be such that bolt 162 is kept with jack 4th spring (being not drawn into figure) of engaging.When the first turning set 4 rotates, the end of bolt 162 is in the periphery wall of lateral shaft 3 Upper slip, when bolt 162 is aligned with the jack on lateral shaft 3, the elastic force of the 4th spring makes bolt 162 engage with jack, baby The folded state of youngster's vehicle is maintained.When needing to be unfolded perambulator, sliding part 161 is pulled up, then rotates the first rotation Set 4.

As shown in figure 13, the rotation pedal 143 is equipped with the groove 143a that side wall is in inclined-plane, in rotation pedal 143 During rotation, the spoke hole that the oblique side wall of the groove 143a pushes brake 140 transverse shifting of pin and snaps onto wheel 100 (is schemed In be not drawn into) it is inner, the third that being additionally provided in the first brake seat 141 can push brake pin 140 transverse shifting to reset resets Spring (is not drawn into) in figure.Certainly, it can also be set on moving block 146 and similarly have bevelled groove, so that rotation Block 146 can also push brake lock fixed wheel when rotating, so as to make two wheels that can be locked.

Operation principle：

When needing folding baby vehicle, drag-line 95 is pulled, articulated jib 91 rotates, and second spring 96 is compressed, lock part 92 It is exited (such as Fig. 7) out of latch hole 93 on supporting rod 7.Handspike 8 can be pushed down at this time, and handspike 8 is in supporting rod 7 Interior glide downwards, the lower end of handspike 8 touch locking pin 61 and by locking pin 61 from the lock slots 62 on the first turning set 4 Interior release, at this time the inner wall of the cambered surface groove 63 of 8 lower end of handspike and the first turning set 4 surround arc-shaped so that first Turning set 4 can relatively transverse axis 3 rotate, supporting rod 7 and handspike 8 also just rotation and draw close folding to the second supporting leg 2.

Such as Fig. 4 and Fig. 5, in 4 rotation process of the first turning set, the limited post 13 on the first turning set 4 is just in limiting slot It is slided in 12, limited post 13 is no longer abut against the cell wall of limiting slot 12 so that the second turning set 5 being capable of relatively transverse axis 3 to first 1 side of supporting leg rotates.As long as being lifted up lateral shaft 3 at this time, the second turning set 5 just can relatively transverse axis 3 rotate, at this time the Two supporting legs 2 and supporting rod 7 just draw close folding with the first supporting leg 1.And turn to completely collapsed position in the first turning set 4 When, the bolt 162 on sliding part 161 is directed at engaging with the socket on lateral shaft 3 so that the folded state of perambulator is protected It holds.

Such as Fig. 9 to Figure 14, when perambulator needs brake, rotation pedal 143 is jammed on downwards, when rotation pedal 143 rotates Driving brake pin 140 is snapped onto in wheel 100, so as to fulfill brake.When rotating the rotation of pedal 143, rotation pedal 143 is logical Crossing horizontal axis 145 drives the moving block 146 in the second brake mount 142 to rotate, at this time (the first back-moving spring 144 and second back-moving spring 147 are compressed, and moving block 146 is in rotation, and when the card column 154 in arcuate socket 151 is aligned with bar hole 152, the Three springs 155 just push stampede part 15 to move upwards, and card column 154 can be moved in bar hole 152.Since card column 154 snaps onto In bar hole 152 so that moving block 146 cannot be rotated further, so as to which the braking state for making perambulator is maintained.Work as perambulator When needing walking, stampede part 153 is stepped on downwards with foot, card column 154 is just exited into out of bar hole 152 to arcuate socket 151, this Shi Kazhu 154 cannot limit the rotation of moving block 146, and second back-moving spring 147 just drives moving block 146 to rotate, and first is multiple The position driving rotation pedal 143 of spring 144 rotates, and in 146 rotation process of moving block, card column 154 continues to slide into arcuate socket 151 Interior, third spring 155 is compressed at this time, and the braking state of perambulator releases.

Claims (10)

1. a kind of perambulator, it is characterised in that：The first supporting leg (1) and the second supporting leg including being connected with wheel (100) (2), first supporting leg (1) is equipped with lateral lateral shaft (3), and being connected on the lateral shaft (3) can be with respect to it The first turning set (4) of rotation, being also associated on the lateral shaft (3) only could be relatively after the first turning set (4) rotates The second turning set (5) of lateral shaft (3) rotation, described the second turning set (5) lower end connection second supporting leg (2), The locking device (6) that the first turning set (4) can be prevented to rotate, institute are equipped between first turning set (4) and lateral shaft (3) The first turning set (4) upper end stated is connected with the supporting rod (7) that can be rotated with it, and being equipped in the supporting rod (7) can be at it It is interior up and down slide and can be driven after glide downwards locking device (6) unlock handspike (8), the handspike (8) with The buckling and locking device (9) of both lockings is equipped between supporting rod (7).

2. perambulator according to claim 1, it is characterised in that：The locking device (6) is including being located at lateral shaft (3) It is interior and can locking pin (61) that transversely axis (3) radially slides, first turning set (4), which is equipped with, can supply locking pin (61) The lock slots (62) of insertion, the end of the locking pin (61) is in cambered surface, and the handspike (8) lower end has and locking pin (61) the cambered surface groove (63) that end matches, locking pin can be made by being additionally provided between the locking pin (61) and lateral shaft (3) (61) the first spring (64) being maintained in lock slots (62).

3. perambulator according to claim 1, it is characterised in that：The buckling and locking device (9) is including being hinged on handspike (8) articulated jib (91) on, the articulated jib (91) are equipped with the lock part (92) extended to one side, the supporting rod (7) latch hole (93) that lock part (92) one end can be supplied to be caught in is equipped with, is additionally provided on the articulated jib (91) another to its The adjutage (94) of side extension, interior be equipped with of the handspike (8) connect with adjutage (94) and articulated jib (91) are pulled to rotate Drag-line (95), being additionally provided between the handspike (8) and articulated jib (91) can protect lock part (92) and latch hole (93) Hold the second spring (96) of lock.

4. perambulator according to claim 1, it is characterised in that：Described its circumferential direction of second turning set (5) upper edge Equipped with limit hole (10), the protrusion post (11) for penetrating limit hole (10), second turning set are set on the lateral shaft (3) (5) its circle circumferential direction of upper edge is additionally provided with limiting slot (12), and first turning set (4) is equipped with and snaps onto limiting slot (12) Interior limited post (13), when perambulator is unfolded, the limited post (13) and protrusion post (11) are respectively against limiting slot (12) With the side wall of limit hole (10) and the second turning set (5) is prevented to rotate.

5. perambulator according to claim 1, it is characterised in that：Described the second supporting leg (2) lower end is equipped with and can limit The brake assemblies (14) of ratch (100) rotation, the brake assemblies (14) are including being respectively provided at two second supporting legs (2) The first brake seat (141) of lower end and the second brake mount (142), the first brake seat (141) and the second brake mount (142) It is connect with wheel (100), being connected on the first brake seat (141) after being trampled by foot can rotate to it and rotate When can driving brake pin (140) lock the rotation pedal (143) of wheel (100), the rotation pedal (143) and first brake Being equipped between seat (141) can drive rotation pedal (143) to rotate the (the first back-moving spring (144) resetted, the described second brake It is equipped in seat (142) and is connect with rotation pedal (143) by horizontal axis (145) and can be followed when rotating pedal (143) and rotating The moving block (146) of rotation, moving block (146) can be driven by being equipped between the moving block (146) and the second brake mount (142) The second back-moving spring (147) resetted is rotated, being additionally provided on second brake mount (142) can keep brake assemblies (14) Braking state and the driving part (15) that after being trampled by foot brake assemblies (14) can unlock.

6. perambulator according to claim 5, it is characterised in that：The driving part (15) is including being located at moving block (146) it on and along the arcuate socket (151) that moving block (146) circumferencial direction extends, is additionally provided on the moving block (146) and arc Shape hole (151) communicates and along the bar hole (152) that moving block (146) radial direction extends, on second brake mount (142) The stampede part (153) that can be trampled is connected with, the stampede part (153), which is equipped with, can be caught in bar hole (152) and arc The card column (154) in hole (151), card column (154) can be made by being additionally provided between the stampede part (153) and the second brake mount (142) The third spring (155) being maintained in bar hole (152).

7. perambulator according to claim 6, it is characterised in that：The stampede part (153) including with the second brake mount (142) hinged hinge bar (1531), the hinge bar (1531) is equipped with the bent rod (1532) being folded upward at, described Bent rod (1532) is equipped with the stampeding section (1533) for exposing to the second brake mount (142), and the card column (154) setting is hinged On bar (1531) or bent rod (1532).

8. perambulator according to claim 7, it is characterised in that：Second brake mount (142) is equipped with spring groove (156), the bent rod (1532) is equipped with protrusion (157), and the third spring (155) is located at spring groove (156) It is interior, and the upper end of third spring (155) is acted against on protrusion (157).

9. perambulator according to claim 5, it is characterised in that：The rotation pedal (143) is equipped with the of indent One arc groove (148a), the inner wall of the first brake seat (141), which is equipped with, can extend into the of the first arc groove (148a) One positive stop lug boss (148b), the (the first back-moving spring (144) are arranged on the first arc groove (148a) cell wall and the first limiting Between boss (148b)；The moving block (146) is equipped with the second arc groove (149a) of indent, second brake mount (142) inner wall is equipped with the second positive stop lug boss (149b) that can extend into the second arc groove (149a), and described second resets Spring (147) is arranged between the second arc groove (149a) cell wall and the second positive stop lug boss (149b).

10. perambulator according to claim 1, it is characterised in that：The perambulator, which further includes, can make it keep folding The solid lock component (16) of state, the solid lock component (16) on the opposite supporting rod (7) of energy or the first turning set (4) including gliding Capable sliding part (161), the lateral shaft (3) are equipped with jack, are connected on the sliding part (161) in the first rotation The bolt (162) that can be engaged after set (4) rotation with jack, the sliding part (161) and supporting rod (7) or the first turning set (4) being additionally provided between can make bolt (162) keep the 4th spring engaged with jack.