Stroller

Abstract

The utility model belongs to the technical field of child carriers, and discloses a child stroller, when the child stroller needs to be folded, a user only needs to unlock a push handle and a grab rail through a first locking mechanism and then presses the push handle downwards, the push handle can rotate towards a rear wheel support and drive the grab rail to rotate towards the rear wheel support, and meanwhile, the push handle can rotate towards the rear wheel support and drive the grab rail to rotate towards the rear wheel support. The supporting rod rotates towards the rear wheel support, the grab bar can pull the third connecting rod to move upwards, then the first connecting rod and the second connecting rod are pulled to swing, the rear wheel support and the front wheel support get close to each other under the action of the first connecting rod and the second connecting rod, and therefore the whole stroller is folded. When the stroller is folded, a user can fold the whole stroller only by unlocking the push handle and the grab rail through the first locking mechanism and pressing the push handle downwards, the whole process is easy and convenient to operate, labor is saved, linkage operation between the rod pieces is smooth during folding, and therefore the use experience of the user can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of children's carriers, in particular to a baby stroller. Background Art

[0002] In order to solve the problem of large storage space occupation, the baby strollers in the prior art generally have a foldable function, so that the volume can be reduced by folding, and thus it is convenient to carry and store. However, when folding traditional baby strollers, it is necessary to hold the frame by hand to completely fold it. The folding steps are complex and the folding process is rather laborious. In addition, the linkage operation between the rods is not smooth during folding, which affects the user experience.

[0003] Therefore, the above problems need to be solved urgently. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a baby stroller to solve the problems that when folding traditional baby strollers, it is necessary to hold the frame by hand to completely fold it, the folding steps are complex, the folding process is rather laborious, and in addition, the linkage operation between the rods is not smooth during folding, which affects the user experience.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A baby stroller, comprising:

[0007] A push handle and an armrest rod, the push handle is rotatably connected to one end of the armrest rod;

[0008] A rear wheel bracket, the other end of the armrest rod is rotatably connected to the rear wheel bracket;

[0009] A front wheel bracket, the front wheel bracket is rotatably connected to one end of the rear wheel bracket close to the armrest rod;

[0010] A support rod, one end of the support rod is rotatably connected to one end of the armrest rod close to the push handle, and the other end of the support rod is rotatably connected to one end of the rear wheel bracket close to the armrest rod;

[0011] A linkage mechanism, including a first connecting rod, a second connecting rod and a third connecting rod. One end of the first connecting rod is rotatably connected to one end of the rear wheel bracket close to the armrest rod. One end of the second connecting rod is rotatably connected to the other end of the first connecting rod. The other end of the second connecting rod is rotatably connected to the front wheel bracket. One end of the third connecting rod is rotatably connected to the middle part of the first connecting rod. The other end of the third connecting rod is rotatably connected to the end of the armrest rod far from the push handle, and the connection position of the third connecting rod and the armrest rod has a spacing from the connection position of the armrest rod and the rear wheel bracket; and

[0012] The first locking mechanism is configured to lock or unlock the push handle and the armrest rod.

[0013] Preferably, the baby stroller further includes:

[0014] A backrest plate and a seat cushion, the backrest plate is rotatably connected to one side of the seat cushion, the other side of the seat cushion is rotatably connected to a fourth link, and the end of the fourth link away from the seat cushion is rotatably connected to the front wheel bracket through a cross bar; and

[0015] A fifth link, one end of the fifth link is rotatably connected to the seat cushion, the other end of the fifth link is rotatably connected to the middle part of the third link, or the other end of the fifth link is rotatably connected to the armrest rod, and the connection position of the fifth link and the armrest rod has a spacing from the connection position of the armrest rod and the rear wheel bracket.

[0016] Preferably, the seat cushion includes a first plate portion and a second plate portion. One side of the first plate portion away from the second plate portion is rotatably connected to the backrest plate, one side of the second plate portion away from the first plate portion is rotatably connected to the fourth link, and one side of the first plate portion close to the second plate portion and one side of the second plate portion close to the first plate portion are both rotatably connected to the rear wheel bracket.

[0017] Preferably, the first plate portion and the second plate portion are rotatably connected to the rear wheel bracket through the same pin shaft.

[0018] Preferably, the baby stroller further includes a tension spring, and both ends of the tension spring are fixedly connected to the fourth link and the rear wheel bracket respectively.

[0019] Preferably, the baby stroller further includes a footrest and a second locking mechanism. The footrest is rotatably connected to the side of the seat cushion away from the backrest plate, and the second locking mechanism is configured to lock or unlock the footrest and the seat cushion.

[0020] Preferably, the fourth link and the footrest are rotatably connected to the seat cushion through the same pin shaft.

[0021] Preferably, the support rod and the first link are rotatably connected to the rear wheel bracket through the same pin shaft.

[0022] Preferably, the baby stroller further includes a front awning rod, and the front awning rod is rotatably connected to the side of the armrest rod close to the push handle.

[0023] Preferably, the baby stroller further includes a rear awning rod, and the rear awning rod is fixedly connected to the push handle.

[0024] The beneficial effects of the present utility model:

[0025] In the present utility model, when it is necessary to fold the baby stroller, the user only needs to unlock the push handle and the armrest rod through the first locking mechanism, and then press down the push handle to fold the baby stroller. Among them, the push handle can rotate towards the rear wheel bracket, driving the armrest rod to rotate towards the rear wheel bracket. At the same time, the support rod also rotates towards the rear wheel bracket. The armrest rod can pull the third connecting rod upward to generate a displacement, and then pull the first connecting rod and the second connecting rod to swing. Under the action of the first connecting rod and the second connecting rod, the rear wheel bracket and the front wheel bracket approach each other, thereby folding the entire baby stroller. The user only needs to unlock the push handle and the armrest rod through the first locking mechanism and press down the push handle to fold the entire baby stroller. The whole process is simple to operate and relatively labor-saving. The linkage operation between the rods is smooth and fluent during folding, thereby improving the user experience. Description of the Drawings

[0026] Figure 1 is one of the structural schematic diagrams of the baby stroller in the unfolded state in the embodiment of the present utility model;

[0027] Figure 2 is another structural schematic diagram of the baby stroller in the unfolded state in the embodiment of the present utility model;

[0028] Figure 3 is the exploded view of the baby stroller in the unfolded state in the embodiment of the present utility model;

[0029] Figure 4 is Figure 3 the partial enlarged view of part A in

[0030] Figure 5 is the structural schematic diagram of the baby stroller during the folding process in the embodiment of the present utility model;

[0031] Figure 6 is the structural schematic diagram of the baby stroller in the folded state in the embodiment of the present utility model.

[0032] In the figure:

[0033] 1. Push handle; 2. Armrest rod; 21. First pin shaft; 22. Second pin shaft; 3. Rear wheel bracket; 31. Rear wheel; 32. Mounting bracket; 321. Thirteenth pin shaft; 4. Front wheel bracket; 41. Third pin shaft; 42. Front wheel; 5. Support rod; 51. Fourth pin shaft; 52. Fifth pin shaft; 6. Linkage mechanism; 61. First connecting rod; 62. Second connecting rod; 621. Sixth pin shaft; 622. Seventh pin shaft; 63. Third connecting rod; 631. Eighth pin shaft; 632. Ninth pin shaft; 7. First locking mechanism; 8. Backrest plate; 9. Seat cushion; 91. First plate part; 92. Second plate part; 93. Tenth pin shaft; 10. Fourth connecting rod; 11. Cross connecting rod; 12. Fifth connecting rod; 121. Eleventh pin shaft; 122. Twelfth pin shaft; 13. Tension spring; 14. Footrest; 15. Second locking mechanism; 16. Front awning rod; 17. Rear awning rod. Detailed implementation manners

[0034] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0035] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above and over", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and under", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0037] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", and "left" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] Please refer to Figures 1 to 6 , this embodiment provides a baby stroller, which includes a push handle 1, an armrest rod 2, a rear wheel bracket 3, a front wheel bracket 4, a strut 5, a linkage mechanism 6 and a first locking mechanism 7. Among them, the push handle 1 is rotatably connected to one end of the armrest rod 2 through a first pin shaft 21, and the other end of the armrest rod 2 is rotatably connected to the rear wheel bracket 3 through a second pin shaft 22. The front wheel bracket 4 is rotatably connected to one end of the rear wheel bracket 3 close to the armrest rod 2 through a third pin shaft 41. One end of the strut 5 is rotatably connected to one end of the armrest rod 2 close to the push handle 1 through a fourth pin shaft 51, and the other end of the strut 5 is rotatably connected to one end of the rear wheel bracket 3 close to the armrest rod 2 through a fifth pin shaft 52. The linkage mechanism 6 includes a first connecting rod 61, a second connecting rod 62 and a third connecting rod 63. One end of the first connecting rod 61 is rotatably connected to one end of the rear wheel bracket 3 close to the armrest rod 2. It should be noted that in this embodiment, the strut 5 and the first connecting rod 61 are rotatably connected to the rear wheel bracket 3 through the same pin shaft, that is, the first connecting rod 61 is also rotatably connected to the rear wheels through the fifth pin shaft 52. One end of the second connecting rod 62 is rotatably connected to the other end of the first connecting rod 61 through a sixth pin shaft 621, and the other end of the second connecting rod 62 is rotatably connected to the front wheel bracket 4 through a seventh pin shaft 622. One end of the third connecting rod 63 is rotatably connected to the middle part of the first connecting rod 61 through an eighth pin shaft 631, and the other end of the third connecting rod 63 is rotatably connected to the end of the armrest rod 2 away from the push handle 1, and the connection position of the third connecting rod 63 and the armrest rod 2 has a spacing from the connection position of the armrest rod 2 and the rear wheel bracket 3, that is, the axis of the ninth pin shaft 632 has a spacing from the axis of the second pin shaft 22. The first locking mechanism 7 is configured to lock or unlock the push handle 1 and the armrest rod 2.

[0039] Based on the above, the baby stroller has a deployed state and a folded state. Specifically, when the baby stroller is in the deployed state, the push handle 1 is located above the armrest rod 2, both the front wheel bracket 4 and the rear wheel bracket 3 are located below the armrest rod 2, and the strut 5 is supported between the upper end of the armrest rod 2 and the rear wheel bracket 3. In addition, the first connecting rod 61 and the second connecting rod 62 are connected between the front end of the front wheel bracket 4 and the rear wheel bracket 3, and the third connecting rod 63 is supported between the first connecting rod 61 and the lower end of the armrest rod 2. Moreover, the first locking mechanism 7 can lock the push handle 1 and the armrest rod 2, so that the baby stroller remains in the deployed state.

[0040] It can be understood that the baby stroller includes two armrest bars 2 which are arranged oppositely. Both of the two armrest bars 2 are rotatably connected between the push handle 1 and the rear wheel bracket 3. A strut 5 is correspondingly arranged on each of the two armrest bars 2. Linkage mechanisms 6 are correspondingly arranged on both sides of the rear wheel bracket 3 along the arrangement direction of the two armrest bars 2. Two third link rods 63 are respectively rotatably connected to the two armrest bars 2. In addition, two front wheels 42 are installed at the bottom of the front wheel bracket 4, and two rear wheels 31 are installed at the bottom of the rear wheel bracket 3, so that the user can push the baby stroller to move through the push handle 1.

[0041] When it is necessary to fold the baby stroller, the user only needs to unlock the push handle 1 and the armrest bar 2 through the first locking mechanism 7, and then press down the push handle 1 to fold the baby stroller. Specifically, the push handle 1 can rotate around the axis of the first pin shaft 21 towards the rear wheel bracket 3 and drive the armrest bar 2 to rotate around the axis of the second pin shaft 22 towards the rear wheel bracket 3. At the same time, the strut 5 also rotates towards the rear wheel bracket 3. Since there is a distance between the axis of the ninth pin shaft 632 and the axis of the second pin shaft 22, the armrest bar 2 can pull the third link rod 63 to generate an upward displacement, and then pull the first link rod 61 and the second link rod 62 to swing. Under the action of the first link rod 61 and the second link rod 62, the rear wheel bracket 3 and the front wheel bracket 4 approach each other, thereby folding the entire baby stroller.

[0042] It can be understood that since the specific structure and working principle of the first locking mechanism 7 are prior art applied to the baby stroller, they will not be elaborated in this embodiment.

[0043] Based on the above-mentioned content, in this embodiment, the user only needs to unlock the push handle 1 and the armrest bar 2 through the first locking mechanism 7 and press down the push handle 1 to fold the entire baby stroller. The whole process is simple to operate and labor-saving. The linkage operation between the rods is smooth and fluent during folding, thereby improving the user experience.

[0044] Further, in addition to the various structures of the frame described above, the stroller also includes a backrest plate 8 and a seat cushion 9. When folding the stroller, the backrest plate 8 needs to be folded together. For this purpose, in this embodiment, the backrest plate 8 is rotatably connected to one side of the seat cushion 9. It can be understood that the backrest plate 8 can rotate towards the rear wheel bracket 3, so that it can be folded. The other side of the seat cushion 9 is rotatably connected to the fourth link 10 through a tenth pin shaft 93. The end of the fourth link 10 away from the seat cushion 9 is rotatably connected to the front wheel bracket 4 through a cross bar 11. In addition, the stroller further includes a fifth link 12. One end of the fifth link 12 is rotatably connected to the seat cushion 9 through an eleventh pin shaft 121, and the other end of the fifth link 12 is rotatably connected to the middle part of the third link 63 through a twelfth pin shaft 122. When the armrest 2 rotates towards the rear wheel bracket 3 around the axis of the second pin shaft 22, the armrest 2 can pull the third link 63 to generate an upward displacement. At the same time, the fifth link 12 can drive the side of the seat cushion 9 close to the backrest plate 8 to generate an upward displacement, and the side of the seat cushion 9 away from the backrest plate 8 rotates around the axis of the tenth pin shaft 93. At this time, the distance between the side of the seat cushion 9 close to the backrest plate 8 and the rear wheel 31 increases, so as to provide sufficient space for the folded backrest plate 8.

[0045] Of course, in other alternative embodiments, the other end of the fifth link 12 can also be rotatably connected to the armrest 2, and the connection position of the fifth link 12 and the armrest 2 has a distance from the connection position of the armrest 2 and the rear wheel bracket 3, so that when the armrest 2 rotates towards the rear wheel bracket 3 around the axis of the second pin shaft 22, the armrest 2 can pull the fifth link 12 to generate an upward displacement together, and then drive the side of the seat cushion 9 close to the backrest plate 8 to generate an upward displacement. This embodiment does not make specific limitations on this.

[0046] Furthermore, the seat cushion 9 includes a first plate portion 91 and a second plate portion 92. The side of the first plate portion 91 away from the second plate portion 92 is rotatably connected to the backrest plate 8, and the side of the second plate portion 92 away from the first plate portion 91 is rotatably connected to the fourth link 10. The side of the first plate portion 91 close to the second plate portion 92 and the side of the second plate portion 92 close to the first plate portion 91 are both rotatably connected to the rear wheel bracket 3. When the rear wheel bracket 3 and the front wheel bracket 4 approach each other, driven by the front wheel bracket 4, the second plate portion 92 can rotate downward, so as to fold the seat cushion 9.

[0047] That is, this embodiment can also fold the seat cushion 9, so as to further reduce the volume of the folded stroller, and thus it is more convenient to carry and store the stroller.

[0048] Moreover, in this embodiment, the first plate portion 91 and the second plate portion 92 are rotatably connected to the rear wheel bracket 3 through the same pin shaft. Specifically, a mounting bracket 32 is fixedly installed on the rear wheel bracket 3. The side of the first plate portion 91 close to the second plate portion 92 and the side of the second plate portion 92 close to the first plate portion 91 are both rotatably connected to the mounting bracket 32 through the thirteenth pin shaft 321. When the rear wheel bracket 3 and the front wheel bracket 4 approach each other, driven by the front wheel bracket 4, the second plate portion 92 can rotate downward around the axis of the thirteenth pin shaft 321, so that the seat cushion 9 can be folded.

[0049] In addition, in this embodiment, the baby stroller further includes a tension spring 13. The two ends of the tension spring 13 are respectively fixedly connected to the fourth link 10 and the rear wheel bracket 3. When the baby stroller is in the unfolded state, the tension spring 13 is in a stretched state, that is, the tension spring 13 can apply a pulling force to the fourth link 10 and the rear wheel bracket 3. When the user unlocks the push handle 1 and the armrest rod 2 through the first locking mechanism 7, the tension spring 13 can apply a pulling force to the front wheel bracket 4 and the rear wheel bracket 3, so as to assist the rear wheel bracket 3 and the front wheel bracket 4 to approach each other. That is, this embodiment can make the folding process more labor-saving, thereby further improving the user experience.

[0050] Furthermore, the baby stroller further includes a footrest 14 and a second locking mechanism 15. Among them, the footrest 14 is rotatably connected to the side of the seat cushion 9 away from the backrest plate 8. The second locking mechanism 15 is configured to lock or unlock the footrest 14 and the seat cushion 9. When the baby stroller is in the unfolded state, the user can lock the footrest 14 and the seat cushion 9 through the second locking mechanism 15. When it is necessary to fold the baby stroller, the user can unlock the footrest 14 and the seat cushion 9 through the second locking mechanism 15, and then the footrest 14 can be folded, so as to further reduce the volume of the folded baby stroller, and thus it is more convenient to carry and store the baby stroller.

[0051] It can be understood that the specific structure and working principle of the second locking mechanism 15 are the same as those of the first locking mechanism 7. Since the specific structure and working principle of the second locking mechanism 15 are prior art applied to the baby stroller, they will not be elaborated in this embodiment.

[0052] In this embodiment, the fourth link 10 and the footrest 14 are rotatably connected to the seat cushion 9 through the same pin shaft, that is, in this embodiment, both the fourth link 10 and the footrest 14 are rotatably connected to the seat cushion 9 through the tenth pin shaft 93.

[0053] In addition, the stroller further includes a front awning rod 16. The front awning rod 16 is rotatably connected to one side of the armrest rod 2 close to the push handle 1. Specifically, the front awning rod 16 is also rotatably connected to the armrest rod 2 through a first pin shaft 21. When the stroller is in the unfolded state, the first locking mechanism 7 can lock the push handle 1, the front awning rod 16 and the armrest rod 2. When it is necessary to fold the stroller, the user can unlock the push handle 1, the front awning rod 16 and the armrest rod 2 through the first locking mechanism 7, so that while folding the frame, the front awning rod 16 can also be folded, thereby further reducing the volume of the folded stroller.

[0054] In addition to the front awning rod 16, the stroller further includes a rear awning rod 17. The rear awning rod 17 is fixedly connected to the push handle 1 and can be folded together with the push handle 1.

[0055] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A child stroller, characterized in that: include: A push handle (1) and a handrail (2), wherein the push handle (1) is rotatably connected to one end of the handrail (2); A rear wheel bracket (3), the other end of the handrail (2) being rotatably connected to the rear wheel bracket (3); A front wheel bracket (4), the front wheel bracket (4) being rotatably connected to one end of the rear wheel bracket (3) close to the handrail (2); A support rod (5), one end of the support rod (5) is rotatably connected to one end of the handrail rod (2) close to the push handle (1), and the other end of the support rod (5) is rotatably connected to one end of the rear wheel bracket (3) close to the handrail rod (2); A linkage mechanism (6), comprising a first link (61), a second link (62) and a third link (63), wherein one end of the first link (61) is rotatably connected to one end of the rear wheel bracket (3) close to the handrail (2), one end of the second link (62) is rotatably connected to the other end of the first link (61), the other end of the second link (62) is rotatably connected to the front wheel bracket (4), one end of the third link (63) is rotatably connected to the middle part of the first link (61), the other end of the third link (63) is rotatably connected to one end of the handrail (2) away from the push handle (1), and a connection position between the third link (63) and the handrail (2) is spaced from a connection position between the handrail (2) and the rear wheel bracket (3); and The first locking mechanism (7) is configured to lock or unlock the push handle (1) and the handrail (2).

2. The stroller according to claim 1, characterized in that: The child stroller also includes: a backrest plate (8) and a seat cushion (9), wherein the backrest plate (8) is rotatably connected to one side of the seat cushion (9), and the other side of the seat cushion (9) is rotatably connected to a fourth connecting rod (10), and an end of the fourth connecting rod (10) away from the seat cushion (9) is rotatably connected to the front wheel bracket (4) via a transverse connecting rod (11); and A fifth connecting rod (12), one end of the fifth connecting rod (12) is rotatably connected to the seat cushion (9), and the other end of the fifth connecting rod (12) is rotatably connected to the middle part of the third connecting rod (63), or the other end of the fifth connecting rod (12) is rotatably connected to the handrail (2), and the connection position between the fifth connecting rod (12) and the handrail (2) is spaced from the connection position between the handrail (2) and the rear wheel bracket (3).

3. The stroller according to claim 2, characterized in that: The seat cushion (9) comprises a first plate portion (91) and a second plate portion (92); a side of the first plate portion (91) away from the second plate portion (92) is rotationally connected to the backrest plate (8); a side of the second plate portion (92) away from the first plate portion (91) is rotationally connected to the fourth connecting rod (10); a side of the first plate portion (91) close to the second plate portion (92) and a side of the second plate portion (92) close to the first plate portion (91) are both rotationally connected to the rear wheel bracket (3).

4. The stroller according to claim 3, characterized in that: The first plate portion (91) and the second plate portion (92) are rotatably connected to the rear wheel bracket (3) via the same pin shaft.

5. The stroller according to claim 2, characterized in that: The child stroller also includes a tension spring (13), and two ends of the tension spring (13) are respectively fixedly connected to the fourth connecting rod (10) and the rear wheel bracket (3).

6. The stroller according to claim 2, characterized in that: The child stroller further comprises a footrest (14) and a second locking mechanism (15), wherein the footrest (14) is rotatably connected to a side of the seat cushion (9) away from the backrest board (8), and the second locking mechanism (15) is configured to lock or unlock the footrest (14) and the seat cushion (9).

7. The stroller according to claim 6, characterized in that: The fourth connecting rod (10) and the footrest frame (14) are rotatably connected to the seat cushion (9) via the same pin shaft.

8. The stroller according to claim 1, characterized in that: The support rod (5) and the first connecting rod (61) are rotatably connected to the rear wheel bracket (3) via the same pin shaft.

9. The stroller according to claim 1, characterized in that: The child stroller also includes a front canopy rod (16), which is rotatably connected to a side of the handrail rod (2) close to the push handle (1).

10. The stroller according to claim 1, characterized in that: The child stroller further comprises a rear canopy rod (17), wherein the rear canopy rod (17) is fixedly connected to the push handle (1).

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