CN207449987U - A kind of perambulator - Google Patents

Abstract

The utility model discloses a kind of perambulator, including：Front-wheel is connected in front frame；Trailing wheel is connected in Rear frame, and Rear frame is rotatablely connected with front frame upper end；The lower end of pushing frame and the upper end of Rear frame are rotatablely connected；The front end of first folding connecting rod is hinged with front frame, and the rear end of the first folding connecting rod is hinged with the second folding connecting rod, is hinged on the second folding connecting rod away from front frame one end with Rear frame；Towing bracket upper end is hinged with pushing frame, the lower end of towing bracket is hinged with the first folding connecting rod or the second folding connecting rod, so that towing bracket promotes the first folding connecting rod or the second folding connecting rod and the first folding connecting rod traction front frame is made to draw close folding to Rear frame when rotating down pushing frame.The utility model is simple in structure, 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, this kind of perambulator of perambulator has become child's article indispensable in developmental process.Baby in the market Vehicle generally can be folded or be unfolded, but existing baby stroller is complicated, and when user's folding baby vehicle is time-consuming to be taken Power, volume after folding is still larger, and manufacture is of high cost.In addition, the locking mechanism unreasonable structure of conventional pushchair, operation is not square Just.

Therefore, the utility model be based on more than deficiency and generate.

【Utility model content】

The utility model aim is to overcome the deficiencies in the prior art, provides a kind of simple in structure, and volume after folding is small Perambulator.

The utility model is achieved through the following technical solutions：

A kind of perambulator can be moved to folding position from expanded position, it is characterised in that：Including：

Front frame 1 is connected with front-wheel 1a in the front frame 1；

Rear frame 2 is connected with trailing wheel 2a in the Rear frame 2, and the Rear frame 2 turns with 1 upper end of front frame Dynamic connection；

Pushing frame 3, the lower end of the pushing frame 3 are rotatablely connected with the upper end of Rear frame 2；

First folding connecting rod 4, the front end of first folding connecting rod 4 and front frame 1 are hinged, first company of folding The rear end of bar 4 is hinged with the second folding connecting rod 5, is cut with scissors on second folding connecting rod 5 away from 1 one end of front frame with Rear frame 2 It connects；

Towing bracket 6,6 upper end of towing bracket and pushing frame 3 are hinged, the lower end of the towing bracket 6 and the One folding connecting rod 4 or the second folding connecting rod 5 are hinged, so that the towing bracket 6 described in when rotating down pushing frame 3 promotes First folding connecting rod 4 or the second folding connecting rod 5 and make the first folding connecting rod 4 traction front frame 1 draw close folding to Rear frame 2.

Perambulator as described above, it is characterised in that：Towing bracket 6, the first folding connecting rod 4 and second company of folding 5 three of bar is coaxially hinged.

Perambulator as described above, it is characterised in that：The perambulator further includes seat support 7, the seat Supporting item 7 includes mounting 71, and the mounting connecting rod 72 hinged with the two, institute are equipped between 71 front end of mounting and front frame 1 71 rear end of mounting stated is hinged with towing bracket 6.

Perambulator as described above, it is characterised in that：The perambulator further includes handrail 8 before U-shaped, the preceding handrail 8 is hinged with pushing frame 3, and the lower end of the preceding handrail 8 is fixedly connected with towing bracket 6.

Perambulator as described above, it is characterised in that：The towing bracket 6 includes the first draw bar 61, and described the The upper end of one draw bar 61 is hinged with pushing frame 3, and the lower end of first draw bar 61 is equipped with horizontal casing 62, the horizontal stroke The second draw bar 63 is fixedly connected on casing 62, the lower end of second draw bar 63 is fixedly connected with transverse bar 64, The end of the transverse bar 64 and the first folding connecting rod 4 of homonymy and the second folding connecting rod 5 are hinged, the horizontal casing 62 It is interior equipped with the sliding pin 65 that can be laterally slided in it, the Rear frame 2, which is equipped with, can coordinate with sliding pin 65 and make baby Vehicle keeps the lock hole 2b of unfolded state, and being additionally provided in the horizontal casing 62 can be such that sliding pin 65 is maintained in lock hole 2b Holding spring 66, be additionally provided with to drive the driving part 9 separated with lock hole 2b of sliding pin 65 in the Rear frame 2.

Perambulator as described above, it is characterised in that：The Rear frame 2 includes the rear hack lever 21 of connection trailing wheel 2a, institute The upper end for the rear hack lever 21 stated is equipped with the connecting rod 22 that one end is connected thereto, the other end and pushing frame 2 connect, the connecting rod 22 in bending and with open slot 23, and the front frame 1 at the bending position in connecting rod 22 with being hinged, the driving Component 9 is arranged in the open slot 23.

Perambulator as described above, it is characterised in that：The driving part 9 includes being located in open slot 23 and with being connected The pedestal 91 that bar 22 is fixedly connected, be equipped in the Rear frame 2 can be slided in it and by sliding pin 65 out of lock hole 2b The catch bar 92 of release, be equipped in the pedestal 91 be connected with catch bar 92 and can in pedestal 91 vertical motion vertical bar 93, impeller-hub 94 is connected on the catch bar 92, the vertical bar 93 is equipped with can be with promotion in its vertical motion The inclination bar hole 95 that axis 94 coordinates and catch bar 92 is promoted to slide, being additionally provided on the pedestal 91 can be to the perpendicular of vertical bar 93 The limiting component 96 limited to movement is additionally provided with can reset catch bar 92 first in the Rear frame 2 and resets bullet Spring 97, the upper end of the vertical bar 93 are equipped with drawing article 98.

Perambulator as described above, it is characterised in that：The limiting component 96 includes the cunning that energy opposite base 91 slides Dynamic button 961, the sliding button 961 are equipped with clamping block 962, and the vertical bar 93, which is equipped with, to be coordinated with clamping block 962 Lock slots 963, the second back-moving spring 964 that sliding button 961 can be promoted to reset, the base are equipped in the pedestal 91 The locating piece 965 that can be positioned when clamping block 962 is separated with lock slots 963 to sliding button 961 is additionally provided in seat 91.

Perambulator as described above, it is characterised in that：The locating piece 965 includes the sliding shoe being located in pedestal 91 9651, the sliding shoe 9651 is equipped with positioning protrusion 9652, and the sliding button 961 can be with positioning equipped at least two Protrusion 9652 engages and sliding shoe 9651 and 961 separated skew wall locating slot of sliding button can be promoted when sliding button 961 slides 9653, interior be equipped with of the pedestal 91 can make sliding shoe 9651 keep the 3rd resetting spring 9654 engaged, institute with sliding button 961 Engaging protrusion 9655 is additionally provided on the sliding shoe 9651 stated, the vertical bar 93 is equipped in positioning protrusion 9652 and skew wall Locating slot 9653 can engage with engaging protrusion 9655 when engaging and can promote sliding shoe 9651 when vertical bar 93 moves upwards It slides laterally and makes positioning protrusion 9652 and 9653 separated skew wall slot 9656 of skew wall locating slot.

Perambulator as described above, it is characterised in that：Hand push that can be flexible in it is also associated in the pushing frame 3 Bar 10.

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

1st, the utility model perambulator rotates down pushing frame, therefore towing bracket just pushes down on first when folding Folding connecting rod or the second folding connecting rod, since the first folding connecting rod and the second folding connecting rod are hinged, and first company of folding Bar and the second folding connecting rod are hinged respectively with front frame and Rear frame, thus towing bracket push down on the first folding connecting rod or During the second folding connecting rod, the first folding connecting rod just pulls front frame to draw close and fold to Rear frame, entire folding procedure letter Single, operation is smooth, and volume after folding is small.

2nd, the seat support of the utility model perambulator includes mounting, is equipped with and the two between mounting front end and front frame Hinged mounting connecting rod, mounting rear end are hinged with towing bracket.So in folding of baby, mounting by mounting connecting rod and Towing bracket is rotated relative to front frame and Rear frame, and then is realized and folded.It can be achieved with seat branch when rotating down pushing frame The folding of support member, operation is simple and reliable.

3rd, the utility model perambulator when unlocking folding, when sliding button and vertical bar disengaging, can be determined by sliding button Position part is temporarily positioned such that the discrete state of sliding button and vertical bar is maintained, and can remove what sliding button was applied at this time External force and go to vertical bar apply external force, avoid the need for simultaneously applying sliding button and vertical bar simultaneously the inconvenience that external force is brought.

【Description of the drawings】

Fig. 1 is 1 stereogram of the utility model embodiment；

Fig. 2 is 1 side view of the utility model embodiment；

Fig. 3 is one of the side view of the utility model embodiment 1 in folding process；

Fig. 4 is the two of side view of the utility model embodiment 1 in folding process；

Fig. 5 is the side view of 1 folded state of the utility model embodiment；

Fig. 6 is 2 stereogram of the utility model embodiment；

Fig. 7 is 2 side view of the utility model embodiment；

Fig. 8 is one of the side view of the utility model embodiment 2 in folding process；

Fig. 9 is the two of side view of the utility model embodiment 2 in folding process；

Figure 10 is the side view of 2 folded state of the utility model embodiment；

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

Figure 12 is the two of the stereogram of the component of the utility model；

Figure 13 is the three of the stereogram of the component of the utility model；

Figure 14 is the four of the stereogram of the component of the utility model；

Figure 15 is the five of the stereogram of the component of the utility model；

Figure 16 is the six of the stereogram of the component of the utility model；

Figure 17 is the exploded view of the component of the utility model；

Figure 18 is the schematic diagram of the utility model unfolded state；

Figure 19 is the schematic diagram of the utility model folded state.

【Specific embodiment】

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

Embodiment 1：

As shown in Figures 1 to 5, a kind of perambulator can be moved to folding position from expanded position, including：

Front frame 1 is connected with front-wheel 1a in the front frame 1；

Rear frame 2 is connected with trailing wheel 2a in the Rear frame 2, and the Rear frame 2 turns with 1 upper end of front frame Dynamic connection；

Pushing frame 3, the lower end of the pushing frame 3 are rotatablely connected with the upper end of Rear frame 2；

First folding connecting rod 4, the front end of first folding connecting rod 4 and front frame 1 are hinged, first company of folding The rear end of bar 4 is hinged with the second folding connecting rod 5, is cut with scissors on second folding connecting rod 5 away from 1 one end of front frame with Rear frame 2 It connects；

Towing bracket 6,6 upper end of towing bracket and pushing frame 3 are hinged, the lower end of the towing bracket 6 and the One folding connecting rod 4 or the second folding connecting rod 5 are hinged, so that the towing bracket 6 described in when rotating down pushing frame 3 promotes First folding connecting rod 4 or the second folding connecting rod 5 and make the first folding connecting rod 4 traction front frame 1 draw close folding to Rear frame 2.

As shown in Fig. 2, the towing bracket 6, the first folding connecting rod 4 and 5 three of the second folding connecting rod are coaxially hinged.

As shown in Fig. 2, the perambulator further includes handrail 8 before U-shaped, the preceding handrail 8 is hinged with pushing frame 3, and And the lower end of the preceding handrail 8 is fixedly connected with towing bracket 6.

Shown as shown in Fig. 1 to Fig. 5, Figure 12, the towing bracket 6 includes the first draw bar 61, and described first leads The upper end and pushing frame 3 for drawing bar 61 are hinged, and the lower end of first draw bar 61 is equipped with horizontal casing 62, the horizontal set The second draw bar 63 is fixedly connected on pipe 62, the lower end of second draw bar 63 is fixedly connected with transverse bar 64, described The end of transverse bar 64 and the first folding connecting rod 4 of homonymy and the second folding connecting rod 5 it is hinged, set in the horizontal casing 62 There is the sliding pin 65 that can be laterally slided in it, the Rear frame 2, which is equipped with, can coordinate with sliding pin 65 and protect perambulator The lock hole 2b of unfolded state is held, the guarantor that sliding pin 65 can be made to be maintained in lock hole 2b is additionally provided in the horizontal casing 62 Spring 66 is held, is additionally provided with to drive the driving part 9 separated with lock hole 2b of sliding pin 65 in the Rear frame 2.

As shown in Figures 2 to 5, the Rear frame 2 includes the rear hack lever 21 of connection trailing wheel 2a, the rear hack lever 21 Upper end is equipped with the connecting rod 22 that one end is connected thereto, the other end and pushing frame 2 connect, and the connecting rod 22 has in bending There is open slot 23, for the front frame 1 with being hinged at the bending position in connecting rod 22, the driving part 9 is arranged on institute In the open slot 23 stated.

Such as Fig. 3, shown in Figure 11 to Figure 14, the driving part 9 includes being located in open slot 23 and solid with connecting rod 22 Surely the pedestal 91 connected, the Rear frame 2 is interior to be equipped with what can be slided in it and release sliding pin 65 out of lock hole 2b Catch bar 92, be equipped in the pedestal 91 be connected with catch bar 92 and can in pedestal 91 vertical motion vertical bar 93, institute Impeller-hub 94 is connected on the catch bar 92 stated, the vertical bar 93 is equipped with can match somebody with somebody in its vertical motion with impeller-hub 94 The inclination bar hole 95 for closing and catch bar 92 being promoted to slide, being additionally provided on the pedestal 91 can be to the vertical motion of vertical bar 93 The limiting component 96 limited is additionally provided with the (the first back-moving spring 97 that can reset catch bar 92, institute in the Rear frame 2 The upper end for the vertical bar 93 stated is equipped with drawing article 98.

As shown in Figure 13 to Figure 17, the limiting component 96 includes the sliding button 961 that energy opposite base 91 slides, described Sliding button 961 be equipped with clamping block 962, the vertical bar 93 be equipped with can with clamping block 962 coordinate lock slots 963, The second back-moving spring 964 that sliding button 961 can be promoted to reset is equipped in the pedestal 91, is additionally provided in the pedestal 91 The locating piece 965 that sliding button 961 can be positioned when clamping block 962 is separated with lock slots 963.

As shown in Figure 14 to Figure 17, the locating piece 965 includes the sliding shoe 9651 being located in pedestal 91, the cunning Motion block 9651 is equipped with positioning protrusion 9652, and the sliding button 961, which is equipped at least two, to be engaged with positioning protrusion 9652 And sliding shoe 9651 and 961 separated skew wall locating slot 9653 of sliding button, the pedestal can be promoted when sliding button 961 slides Being equipped in 91 can make sliding shoe 9651 keep the 3rd resetting spring 9654 engaged, the sliding shoe 9651 with sliding button 961 On be additionally provided with engaging protrusion 9655, the vertical bar 93 be equipped with engages in positioning protrusion 9652 with skew wall locating slot 9653 Shi Nengyu engaging protrusions 9655 engage and when vertical bar 93 moves upwards sliding shoe 9651 can be promoted to slide laterally and make to determine Position protrusion 9652 and 9653 separated skew wall slot 9656 of skew wall locating slot.

As shown in Fig. 1, Fig. 6, the handspike 10 that can be stretched in it is also associated in the pushing frame 3.

Embodiment 2：

As shown in Fig. 6 to Figure 10, embodiment 2 and embodiment 1 difference lies in：

The perambulator further includes seat support 7, and the seat support 7 includes mounting 71, the mounting The mounting connecting rod 72 hinged with the two is equipped between 71 front ends and front frame 1,71 rear end of mounting is cut with scissors with towing bracket 6 It connects.

Folding principle：

As shown in Figure 2 and Figure 3, in folding of baby, handspike 10 is collapsible into pushing frame 3 first.

Then, as shown in Figure 11 to Figure 17, sliding button 961 is promoted, the clamping block 962 on sliding button 961 is just and vertical bar Lock slots 963 on 93 depart from, and skew wall locating slot 9653 of the sliding button 961 in sliding process thereon promotes sliding shoe Positioning protrusion 9652 on 9651 so that 9651 transverse shifting of sliding shoe and separated with sliding button 961, at this time the 3rd reset Spring 9654 is compressed, and after sliding button 961 slides into certain distance, the positioning protrusion 9652 on sliding shoe 9651 is with sliding Another skew wall locating slot 9653 on button 961 is aligned, sliding shoe 9651 under the action of the 3rd resetting spring 9654 again Engage with sliding button 961, sliding button 961 is positioned by sliding shoe 9651 at this time, clamping block 962 and vertical bar on sliding button 961 Lock slots 963 on 93 remain disengaged from state, and at this time on the engaging protrusion 9655 on sliding shoe 9651 and vertical bar 93 Skew wall slot 9656 engage.Due to the skew wall locating slot on the positioning protrusion 9652 on sliding shoe 9651 and sliding button 961 9653 engaging, sliding button 961 cannot promote reset by second back-moving spring 964, at this point, user can be removed to sliding button 961 thrusts applied, then pull up vertical bar 93 by drawing article 98, and avoiding user needs simultaneously to sliding button 961 Apply external force with drawing article 98 so that operation is simpler.When pulling up vertical bar 93, the inclination bar hole in vertical bar 93 95 hole walls promote impeller-hub 94 so that catch bar 92 slides, and catch bar 92 is promoted during sliding in horizontal casing 62 Sliding pin 65 so that sliding pin 65 departs from the lock hole 2b in Rear frame 2, so as to complete the unlock of perambulator.In vertical bar During 93 move upwards, the cell wall of skew wall slot 9656 promotes the engaging protrusion 9655 on sliding shoe 9651 so that sliding Motion block 9651 slides laterally, and the positioning protrusion 9652 on sliding shoe 9651 departs from the skew wall locating slot 9653 on sliding button 961, At the same time, engaging protrusion 9655 is exited out of skew wall slot 9656 and blocked by 93 side wall of vertical bar, and the 3rd resets Spring 9654 is in compressed state.When sliding pin 65 is exited out of lock hole 2b and removes the external force to drawing article 98, the One resetting spring 97 promote catch bar 92 reset, catch bar 92 reset taxiing procedures in by impeller-hub 94 drive vertical bar 93 to Lower movement, when vertical bar 93 moves downward, the lock slots 963 in vertical bar 93 are aligned with the clamping block 962 on sliding button 961, Second back-moving spring 964 promotes sliding button 961 to engage with vertical bar 93, and the skew wall slot 9656 in vertical bar 93 at this time It is aligned with the engaging protrusion 9655 on sliding shoe 9651, the 3rd resetting spring 9654 promotes sliding shoe 9651, makes sliding shoe Positioning protrusion 9652 on 9651 engages again with the skew wall locating slot 9653 on sliding button 961.

After sliding pin 65 is exited out of lock hole 2b, as shown in Fig. 2 to Fig. 5 and Fig. 7 to Figure 10, pushing frame is rotated down 3, therefore the first draw bar 61 and the second draw bar 63 just push down on the first folding connecting rod 4 and the second folding connecting rod 5, due to One folding connecting rod 4 is hinged with the second folding connecting rod 5, and the first folding connecting rod 4 and the second folding connecting rod 5 respectively with front truck Frame 1 and Rear frame 2 are hinged, so when towing bracket 6 pushes down on the first folding connecting rod 4 and the second folding connecting rod 5, the first folding Folded connecting rod 4 just pulls front frame 1 to draw close and fold to Rear frame 2, final to realize that pushing frame 3 and front frame 1 are leaned on to Rear frame 2 Hold together to fold, entire folding procedure is simple, and operation is smooth, and volume after folding is small.

Claims (10)

1. a kind of perambulator can be moved to folding position from expanded position, it is characterised in that：Including：

Front frame (1) is connected with front-wheel (1a) in the front frame (1)；

Rear frame (2) is connected with trailing wheel (2a), and the Rear frame (2) and front frame (1) in the Rear frame (2) Upper end is rotatablely connected；

Pushing frame (3), the lower end of the pushing frame (3) are rotatablely connected with the upper end of Rear frame (2)；

First folding connecting rod (4), the front end of first folding connecting rod (4) and front frame (1) are hinged, and described first folds The rear end of connecting rod (4) is hinged with the second folding connecting rod (5), on second folding connecting rod (5) away from front frame (1) one end with Rear frame (2) is hinged；

Towing bracket (6), the towing bracket (6) upper end is hinged with pushing frame (3), the lower end of the towing bracket (6) It is hinged with the first folding connecting rod (4) or the second folding connecting rod (5), so that leading described in when rotating down pushing frame (3) Draw stent (6) to promote the first folding connecting rod (4) or the second folding connecting rod (5) and the first folding connecting rod (4) is made to draw front frame (1) Folding is drawn close to Rear frame (2).

2. perambulator according to claim 1, it is characterised in that：The towing bracket (6), the first folding connecting rod (4) It is coaxially hinged with the second folding connecting rod (5) three.

3. perambulator according to claim 2, it is characterised in that：The perambulator further includes seat support (7), institute The seat support (7) stated includes mounting (71), is equipped between the mounting (71) front end and front frame (1) and is cut with scissors with the two The mounting connecting rod (72) connect, the mounting (71) rear end are hinged with towing bracket (6).

4. perambulator according to claim 3, it is characterised in that：The perambulator further includes handrail (8) before U-shaped, institute The preceding handrail (8) stated is hinged with pushing frame (3), and the lower end of the preceding handrail (8) is fixedly connected with towing bracket (6).

5. according to claim 2 to 4 any one of them perambulator, it is characterised in that：The towing bracket (6) includes the One draw bar (61), the upper end of first draw bar (61) and pushing frame (3) are hinged, first draw bar (61) Lower end is equipped with horizontal casing (62), is fixedly connected with the second draw bar (63) on the horizontal casing (62), and described second The lower end of draw bar (63) is fixedly connected with transverse bar (64), the end of the transverse bar (64) and the first of the homonymy company of folding Bar (4) and the second folding connecting rod (5) are hinged, and the sliding pin that can be laterally slided in it is equipped in the horizontal casing (62) (65), the Rear frame (2) is equipped with the lock hole that can coordinate with sliding pin (65) and perambulator is made to keep unfolded state (2b), the horizontal casing (62) is interior to be additionally provided with the holding spring that sliding pin (65) can be made to be maintained in lock hole (2b) (66), it is additionally provided with to drive sliding pin (65) driving part (9) separated with lock hole (2b) in the Rear frame (2).

6. perambulator according to claim 5, it is characterised in that：The Rear frame (2) includes connection trailing wheel (2a) Hack lever (21) afterwards, the upper end of the rear hack lever (21) are equipped with the connection that one end is connected thereto, the other end and pushing frame (2) connect Bar (22), the connecting rod (22) is in bending and has open slot (23), in the front frame (1) and connecting rod (22) Bending position at be hinged, the driving part (9) is arranged in the open slot (23).

7. perambulator according to claim 6, it is characterised in that：The driving part (9) includes being located at open slot (23) in and the pedestal (91) that is fixedly connected with connecting rod (22), be equipped in the Rear frame (2) can slide in it and incite somebody to action The catch bar (92) that sliding pin (65) is released out of lock hole (2b), interior be equipped with of the pedestal (91) are connected with catch bar (92) And impeller-hub (94) can be connected in the vertical bar (93) of pedestal (91) interior vertical motion, the catch bar (92), it is described Vertical bar (93) be equipped with and can coordinate and inclination that catch bar (92) is promoted to slide with impeller-hub (94) in its vertical motion Bar hole (95) is additionally provided with the limiting component that can be limited the vertical motion of vertical bar (93) on the pedestal (91) (96), the (the first back-moving spring (97) that can reset catch bar (92), the vertical bar are additionally provided in the Rear frame (2) (93) upper end is equipped with drawing article (98).

8. perambulator according to claim 7, it is characterised in that：The limiting component (96) includes can opposite base (91) sliding button (961) slided, the sliding button (961) are equipped with clamping block (962), and the vertical bar is set on (93) There are the lock slots (963) that can coordinate with clamping block (962), being equipped in the pedestal (91) can promote sliding button (961) multiple The second back-moving spring (964) of position, the pedestal (91) is interior to be additionally provided with when clamping block (962) is separated with lock slots (963) The locating piece (965) that sliding button (961) can be positioned.

9. perambulator according to claim 8, it is characterised in that：The locating piece (965) includes being located at pedestal (91) Interior sliding shoe (9651), the sliding shoe (9651) are equipped with positioning protrusion (9652), and the sliding button is set on (961) There are at least two can engage with positioning protrusion (9652) and sliding shoe (9651) can be promoted when sliding button (961) slides with sliding The separated skew wall locating slot (9653) of dynamic button (961), interior be equipped with of the pedestal (91) can make sliding shoe (9651) and sliding button (961) the 3rd resetting spring (9654) of engaging is kept, engaging protrusion (9655) is additionally provided on the sliding shoe (9651), The vertical bar (93) is equipped with can be with engaging protrusion when positioning protrusion (9652) engages with skew wall locating slot (9653) (9655) engage and when vertical bar (93) moves upwards sliding shoe (9651) can be promoted to slide laterally and make positioning protrusion (9652) skew wall slot (9656) separated with skew wall locating slot (9653).

10. perambulator according to claim 9, it is characterised in that：Being also associated in the pushing frame (3) can be in it Flexible handspike (10).