Damping device for hub motor of baby carriage

Abstract

The utility model discloses a buggy hub motor damping device which comprises a buggy body and a rear cover connected with the buggy body, a supporting shaft is installed on the lower portion of the buggy body, damping mechanisms are arranged on the two sides of the buggy body, each damping mechanism comprises a swing rod and a damper, and the swing rods of the damping mechanisms on the two sides are movably connected with the two ends of the supporting shaft respectively. The lower ends of the shock absorbers are hinged to the swing rods on the same side, and the upper ends of the shock absorbers are movably connected with the connecting shafts. According to the utility model, the damping mechanism is arranged outside the vehicle body, so that the rear wheels of the vehicle body can be damped, and the riding comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, and more specifically, to a shock-absorbing device for a hub motor of a baby carriage. Background Art

[0002] An electric baby carriage is a baby carriage that can be ridden and driven by children outdoors. Since the flatness of outdoor roads is not high, the shock absorption of electric baby carriages is particularly important. At present, most electric baby carriages only have shock-absorbing functions for the front wheels, and the rear wheels do not have shock-absorbing functions, resulting in a low riding experience. Therefore, there is an urgent need to improve this situation. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a shock-absorbing device for a hub motor of a baby carriage. By arranging a shock-absorbing mechanism outside the vehicle body, the rear wheels of the vehicle body can be shock-absorbed, thereby improving the riding comfort.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a shock-absorbing device for a hub motor of a baby carriage, which includes a vehicle body and a rear cover connected to the vehicle body. A support shaft is installed at the lower part of the vehicle body. Shock-absorbing mechanisms are arranged on both sides of the vehicle body. Each shock-absorbing mechanism includes a swing rod and a shock absorber. The swing rods of the shock-absorbing mechanisms on both sides are respectively movably connected to both ends of the support shaft. A connecting shaft is installed inside the rear cover, and both ends of the connecting shaft extend beyond both sides of the rear cover. The lower end of the shock absorber is hinged to the swing rod on the same side, and the upper end is movably connected to the connecting shaft.

[0006] Further, a first installation groove is provided at the bottom of the vehicle body, the support shaft is embedded in the first installation groove, a first connecting piece is connected to the bottom of the vehicle body, the first connecting piece is fixed at the lower opening of the first installation groove, and the side surface of the support shaft abuts against one side of the first connecting piece facing the first installation groove.

[0007] Further, a sleeve is provided at one end of the swing rod, the support shaft passes through the sleeve, the swing rod can swing along the axis of the support shaft, a first nut is threadedly connected to the end of the support shaft, the inner side of the sleeve abuts against the outer side of the vehicle body, and the outer side of the sleeve abuts against the inner side of the first nut.

[0008] Further, a hinge seat is provided at the upper part of the swing rod away from the support shaft, and the lower end of the shock absorber is hinged to the hinge seat.

[0009] Further, the vehicle body and the rear cover are connected by bolts. Bosses are provided on both sides of the rear cover. Both ends of the connecting shaft respectively pass through the two bosses. The vehicle body includes a second installation groove, the bosses are inserted into the second installation groove, second nuts are threadedly connected to both ends of the connecting shaft, and the upper end of the shock absorber is sleeved outside the connecting shaft and is located between the rear cover and the second nut.

[0010] Furthermore, the included angle between the shock absorber and the swing rod on the side towards the support shaft is an acute angle.

[0011] Furthermore, motors and wheels are provided on both sides of the vehicle body. The motors on both sides are respectively connected to the shock absorption mechanisms on the same side. A second connecting piece is fixed on the outer side of the swing rod. The motor is connected to the second connecting piece. A hub is connected to the driving shaft of the motor. A limiting groove is provided on the inner side of the wheel. The hub is inserted into the limiting groove and fixed. The motor can drive the wheel to rotate.

[0012] Furthermore, one ends of the two swing rods away from the support shaft are connected by a balance rod.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By providing two independent motors, the corresponding wheels can be driven separately, and thus independent shock absorption can also be achieved. Specifically, by providing two independent shock absorption mechanisms, and each shock absorption mechanism can separately shock-absorb one wheel. When the baby carriage travels on the road surface, the two swing rods can swing separately along the axis of the support shaft, so that the springs in the corresponding shock absorbers are compressed or elongated, thereby playing a shock-absorbing role for the corresponding wheels, greatly improving the riding experience of children. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model from the first perspective;

[0016] Figure 2 is an exploded view of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the present utility model from the second perspective;

[0018] Figure 4 is Figure 3 an enlarged view at A.

[0019] Reference numerals: 1, vehicle body; 11, first installation groove; 12, first connecting piece; 13, second installation groove; 2, rear cover; 21, boss; 3, support shaft; 31, first nut; 4, swing rod; 41, hinge seat; 42, second connecting piece; 43, sleeve; 5, shock absorber; 6, connecting shaft; 61, second nut; 7, balance rod; 8, motor; 81, hub; 9, wheel; 91, limiting groove. Detailed Embodiments

[0020] The following will clearly and completely describe the technical solutions in the present utility model in conjunction with the accompanying drawings in the present utility model. Obviously, the described utility model is only a part of the present utility model, rather than all of the present utility model. All other utility models obtained by those of ordinary skill in the art based on the utility model in the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0021] As Figures 1 to 4 shown, a shock absorption device for a baby carriage hub motor includes a vehicle body 1 and a rear cover 2 connected to the vehicle body 1. The vehicle body 1 and the rear cover 2 are connected by bolts. A support shaft 3 is installed at the lower part of the vehicle body 1. A first installation groove 11 is provided at the bottom of the vehicle body 1. The support shaft 3 is embedded in the first installation groove 11. A first connecting piece 12 is connected to the bottom of the vehicle body 1. The first connecting piece 12 is fixed at the lower opening of the first installation groove 11. The side of the support shaft 3 abuts against one side of the first connecting piece 12 facing the first installation groove 11. The first connecting piece 12 and the bottom of the vehicle body 1 are connected and fixed by bolts. By providing the first connecting piece 12, it is possible to prevent the support shaft 3 from falling from the lower opening of the first installation groove 11.

[0022] Shock absorption mechanisms are provided on both sides of the vehicle body 1. The shock absorption mechanisms include swing rods 4 and shock absorbers 5. The swing rods 4 of the shock absorption mechanisms on both sides are respectively movably connected to both ends of the support shaft 3. A connecting shaft 6 is installed in the rear cover 2. Both ends of the connecting shaft 6 extend beyond both sides of the rear cover 2. Specifically, a sleeve 43 is provided at one end of the swing rod 4. The support shaft 3 passes through the sleeve 43. The swing rod 4 can swing along the axis of the support shaft 3. A first nut 31 is threadedly connected to the end of the support shaft 3. The inner side of the sleeve 43 abuts against the outer side of the vehicle body 1 and the outer side of the sleeve 43 abuts against the inner side of the first nut 31. Through the cooperation of the sleeve 43 and the support shaft 3, the rotational connection of the swing rod 4 can be realized. By providing the first nut 31, the horizontal displacement of the swing rod 4 can be effectively prevented, making the connection between the swing rod 4 and the support shaft 3 more reliable.

[0023] The lower end of the shock absorber 5 is hinged to the swing rod 4 on the same side and the upper end is movably connected to the connecting shaft 6. A hinge seat 41 is provided at the upper part of the swing rod 4 away from the support shaft 3. The lower end of the shock absorber 5 is hinged to the hinge seat 41. Protrusions 21 are provided on both sides of the rear cover 2. Both ends of the connecting shaft 6 respectively pass through the two protrusions 21. The vehicle body 1 includes a second installation groove 13. The protrusions 21 are inserted into the second installation groove 13. Second nuts 61 are threadedly connected to both ends of the connecting shaft 6. The upper end of the shock absorber 5 is sleeved outside the connecting shaft 6 and is located between the rear cover 2 and the second nut 61. Through the cooperation of the second nut 61, the connecting shaft 6 and the rear cover 2, the upper end of the shock absorber 5 can be installed and limited. Through the cooperation of the hinge seat 41 and the lower end of the shock absorber 5, the lower end of the shock absorber 5 can be installed and limited, making the connection of the shock absorber 5 more reliable.

[0024] The included angle between the shock absorber 5 and the swing rod 4 on the side facing the support shaft 3 is an acute angle, which is beneficial to improving the shock absorption effect as described above.

[0025] On both sides of the vehicle body 1, there are motors 8 and wheels 9. The two motors 8 on both sides are respectively connected to the shock absorption mechanisms on the same side. A second connecting piece 42 is fixed on the outer side of the swing rod 4. The motor 8 is connected to the second connecting piece 42. A hub 81 is connected to the drive shaft of the motor 8. A limiting groove 91 is arranged on the inner side of the wheel 9. The hub 81 is inserted into the limiting groove 91 and fixed. The motor 8 can drive the wheel 9 to rotate. The motor 8 and the hub 81 form a hub motor. By setting two independent motors 8, the corresponding wheels 9 can be driven separately, and thus independent shock absorption can also be achieved. Specifically, by setting two independent shock absorption mechanisms, and each shock absorption mechanism can shock-absorb a corresponding wheel 9 separately. When the baby carriage travels on the road surface, the two swing rods 4 can swing separately along the axis of the support shaft 3, so that the springs in the corresponding shock absorbers 5 are compressed or elongated, thereby playing a shock-absorbing role for the corresponding wheels 9, greatly improving the riding experience of children.

[0026] Among them, according to different road conditions, a balance rod 7 can be added. Specifically, the ends of the two swing rods 4 far from the support shaft 3 are connected by the balance rod 7. When the balance rod 7 is set, the two shock absorption mechanisms can be connected. In this state, although the shock absorption effect will decrease, the stability of the shock absorption mechanism will be higher.

[0027] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above-mentioned invention. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A shock absorption device for a baby carriage hub motor, characterized in that, It includes a vehicle body (1) and a rear cover (2) connected to the vehicle body (1). A support shaft (3) is installed at the lower part of the vehicle body (1). Shock-absorbing mechanisms are provided on both sides of the vehicle body (1). The shock-absorbing mechanisms include swing rods (4) and shock absorbers (5). The swing rods (4) of the shock-absorbing mechanisms on both sides are respectively movably connected to both ends of the support shaft (3). A connecting shaft (6) is installed inside the rear cover (2). Both ends of the connecting shaft (6) extend beyond both sides of the rear cover (2). The lower end of the shock absorber (5) is hinged to the swing rod (4) on the same side and the upper end is movably connected to the connecting shaft (6).

2. The shock absorption device for a baby carriage hub motor according to claim 1, wherein A first installation groove (11) is provided at the bottom of the vehicle body (1). The support shaft (3) is embedded in the first installation groove (11). A first connecting piece (12) is connected to the bottom of the vehicle body (1). The first connecting piece (12) is fixed at the lower opening of the first installation groove (11). The side of the support shaft (3) abuts against the side of the first connecting piece (12) facing the first installation groove (11).

3. The shock-absorbing device for a baby carriage hub motor according to claim 1, wherein, A sleeve (43) is provided at one end of the swing rod (4). The support shaft (3) passes through the sleeve (43). The swing rod (4) can swing along the axis of the support shaft (3). A first nut (31) is threadedly connected to the end of the support shaft (3). The inner side of the sleeve (43) abuts against the outer side of the vehicle body (1) and the outer side of the sleeve (43) abuts against the inner side of the first nut (31).

4. The shock-absorbing device for a baby carriage hub motor according to claim 1, characterized in that, A hinge seat (41) is provided at the upper part of the swing rod (4) away from the support shaft (3). The lower end of the shock absorber (5) is hinged to the hinge seat (41).

5. The shock absorption device for a baby carriage hub motor according to claim 4, characterized in that, The vehicle body (1) and the rear cover (2) are connected by bolts. Protrusions (21) are provided on both sides of the rear cover (2). Both ends of the connecting shaft (6) respectively pass through the two protrusions (21). The vehicle body (1) includes a second installation groove (13). The protrusions (21) are inserted into the second installation groove (13). Second nuts (61) are threadedly connected to both ends of the connecting shaft (6). The upper end of the shock absorber (5) is sleeved outside the connecting shaft (6) and is located between the rear cover (2) and the second nut (61).

6. The shock-absorbing device for a baby carriage hub motor according to claim 5, wherein, The included angle between the shock absorber (5) and the swing rod (4) on the side facing the support shaft (3) is an acute angle.

7. The shock-absorbing device for a baby stroller hub motor according to claim 1, wherein, Motors (8) and wheels (9) are provided on both sides of the vehicle body (1). The motors (8) on both sides are respectively connected to the shock-absorbing mechanisms on the same side. A second connecting piece (42) is fixed on the outer side of the swing rod (4). The motor (8) is connected to the second connecting piece (42). A hub (81) is connected to the drive shaft of the motor (8). A limiting groove (91) is provided on the inner side of the wheel (9). The hub (81) is inserted into the limiting groove (91) and fixed. The motor (8) can drive the wheel (9) to rotate.

8. The shock-absorbing device for a baby carriage hub motor according to claim 1, wherein The ends of the two swing rods (4) away from the support shaft (3) are connected by a balance rod (7).

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