Rear axle damping frame of baby carriage
By setting up a shock absorber mechanism on the rear axle of the electric child stroller, including a support shaft and a swing rod, the problem of no shock absorption in the rear wheel is solved, achieving better riding comfort and low-cost shock absorption.
Patent Information
- Application Number
- CN202422588410.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The rear wheels of existing electric children's strollers lack shock absorption, resulting in a low riding experience.
A shock absorbing mechanism is provided outside the vehicle body, including a support shaft, a swing rod and a shock absorber, so that the shock absorbing effect is achieved through the rotation of the support shaft and the swing of the swing rod.
It improves the shock absorption effect of the rear wheel of the children's carriage, improves riding comfort, and has a simple structure and low cost.
Smart Images
Figure CN223132269U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of baby carriages, and more specifically, to a rear axle shock absorber for a baby carriage. Background Art
[0002] An electric baby carriage is a baby carriage for children to ride and drive outdoors. Since the flatness of the outdoor road surface is not high, the shock absorption of the electric baby carriage is particularly important. At present, most electric baby carriages only have shock absorption function for the front wheels, and the rear wheels have no shock absorption function, resulting in a low riding experience. Therefore, it is urgent to improve this situation. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, and provide a rear axle shock absorber for a baby carriage. By setting a shock absorption mechanism outside the vehicle body, the rear wheels of the vehicle body can be shock-absorbed, 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 rear axle shock absorber for a baby carriage, which includes a vehicle body and a shock absorption mechanism. An installation groove is provided at the bottom of the vehicle body. The shock absorption mechanism includes a support shaft installed in the installation groove. The support shaft can rotate in the installation groove. Both ends of the support shaft extend beyond both sides of the bottom of the vehicle body, and swing rods are respectively connected to the extending ends. One ends of the two swing rods away from the support shaft are connected by a connecting rod. Shock absorbers corresponding to the swing rods are provided on both sides of the vehicle body. The shock absorbers are located above the swing rods. One end of the shock absorber is hinged to the corresponding swing rod, and the other end is hinged to the side of the vehicle body.
[0006] Further, the included angle between the shock absorber and the side of the swing rod facing the support shaft is an acute angle.
[0007] Further, the vehicle body and the support shaft are connected by a first connecting piece. The first connecting piece is fixed to the lower part of the vehicle body by bolts. The side of the support shaft abuts against the side of the first connecting piece facing the installation groove.
[0008] Further, connecting parts and buffer sleeves are provided at both ends of the support shaft. The buffer sleeves are sleeved outside the connecting parts. The inner sides of the buffer sleeves and the connecting parts abut against the side of the vehicle body. The diameter of the connecting parts is larger than the cross-sectional size of the installation groove. The swing rods are sleeved outside the connecting parts. The swing rods can swing along the axis of the support shaft.
[0009] Further, hinge seats are provided on the upper parts of the swing rods. The lower parts of the shock absorbers are hinged to the hinge seats.
[0010] Further, one ends of the two swing rods away from the support shaft are connected by a rotating shaft. Wheels are fixed at both ends of the rotating shaft. The wheels are located outside the swing rods. A limiting block is arranged at the lower part of the swing rod. The rotating shaft includes a bearing seat corresponding to the limiting block. The bearing seat is installed in the limiting block. A second connecting piece is connected to the side of the limiting block away from the swing rod. The second connecting piece abuts against the bearing seat to fix the bearing seat.
[0011] Further, connecting sleeves are fixed at positions close to both ends on the outer side of the rotating shaft. Adapter pieces are fixed on the inner sides of the wheels. Both ends of the rotating shaft are inserted into the wheels. The adapter pieces and the connecting sleeves are fixedly connected.
[0012] Further, key grooves are arranged inside the connecting sleeves. Shaft keys are installed in the key grooves. The connecting sleeves and the rotating shaft are fixed by the shaft keys. Limiting grooves are arranged on the inner sides of the wheels. The adapter pieces are inserted into the limiting grooves and fixed. The connecting sleeves are sleeved on the outer sides of the adapter pieces and fixedly connected to the adapter pieces.
[0013] The beneficial effects of the utility model are as follows:
[0014] A shock absorption mechanism is formed by the support shaft, the swing rod, the shock absorber and the connecting rod. When the baby carriage travels on the road surface, the swing rod can swing along the axis of the support shaft, so that the spring in the shock absorber is compressed or elongated. The shock absorber can play a role in shock absorption for the rear wheels of the baby carriage, greatly improving the riding experience of children. And the shock absorption mechanism has a simple and reliable structure and low manufacturing cost. Description of the Drawings
[0015] Figure 1 It is a schematic structural diagram of this embodiment from the first perspective;
[0016] Figure 2 It is a schematic structural diagram of this embodiment from the second perspective;
[0017] Figure 3 is Figure 2 an enlarged view at A;
[0018] Figure 4 It is a partial cross-sectional view of this embodiment.
[0019] Reference numerals: 1, vehicle body; 11, installation groove; 12, first connecting piece; 2, support shaft; 21, connecting part; 22, buffer sleeve; 3, swing rod; 31, hinge seat; 32, limiting block; 33, second connecting piece; 4, shock absorber; 5, connecting rod; 6, rotating shaft; 61, bearing seat; 62, shaft key; 7, wheel; 71, limiting groove; 8, adapter piece; 9, connecting sleeve; 91, key groove. Detailed Description of the Invention
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0021] As Figures 1 to 4 shown, a rear axle shock absorber frame of a baby carriage includes a vehicle body 1 and a shock absorption mechanism. An installation groove 11 is provided at the bottom of the vehicle body 1. The shock absorption mechanism includes a support shaft 2. The support shaft 2 is installed in the installation groove 11. The support shaft 2 can rotate in the installation groove 11. The vehicle body 1 and the support shaft 2 are connected by a first connection piece 12. The first connection piece 12 is fixed to the lower part of the vehicle body 1 by bolts. The side of the support shaft 2 abuts against one side of the first connection piece 12 facing the installation groove 11. By providing the first connection piece 12, it can effectively prevent the support shaft 2 from falling from the opening at the bottom of the installation groove 11 beyond the vehicle body 1. Not only is the fixing effect good, but also the fixing structure is simple and the fixing is convenient, which is beneficial to reducing the manufacturing cost.
[0022] Both ends of the support shaft 2 extend beyond both sides of the bottom of the vehicle body 1, and swing rods 3 are respectively connected to the extending ends. One ends of the two swing rods 3 far from the support shaft 2 are connected by a connecting rod 5. The swing rods 3 can swing along the axis of the support shaft 2. The connecting rod 5 is fixed to the two swing rods 3 by welding. By providing the connecting rod 5, the positions of the two swing rods 3 can be fixed. Connecting parts 21 and buffer sleeves 22 are provided at both ends of the support shaft 2. The connecting parts 21 are integrally formed with the support shaft 2. The buffer sleeves 22 are sleeved outside the connecting parts 21. The inner sides of the buffer sleeves 22 and the connecting parts 21 abut against the side of the vehicle body 1. The diameter of the connecting part 21 is larger than the cross-sectional dimension of the installation groove 11. The swing rods 3 are sleeved outside the connecting parts 21. After the support shaft 2 and the swing rods 3 are installed, the buffer sleeves 22 are located between the side of the vehicle body 1 and the inner sides of the swing rods 3. The inner sides of the swing rods 3 abut against the outer sides of the buffer sleeves 22. The connecting part 21 can prevent the support shaft 2 from moving along the axis of the installation groove 11. The connecting part 21 and the first connection piece 12 cooperate to realize the installation of the support shaft 2. The buffer sleeves 22 are made of hard rubber parts. By providing the buffer sleeves 22, it can play a buffering role and can effectively prevent the swing rods 3 from directly contacting the side of the vehicle body 1.
[0023] Shock absorbers 4 corresponding to the swing rods 3 are provided on both sides of the vehicle body 1. The shock absorbers 4 are located above the swing rods 3. One end of each shock absorber 4 is hinged to the corresponding swing rod 3 and the other end is hinged to the side of the vehicle body 1. Specifically, a hinge seat 31 is provided on the upper part of the swing rod 3. The lower part of the shock absorber 4 is hinged to the hinge seat 31. The included angle between the shock absorber 4 and the side of the swing rod 3 facing the support shaft 2 is an acute angle.
[0024] A shock absorption mechanism is formed by a support shaft 2, a swing rod 3, a shock absorber 4 and a connecting rod 5. When the baby carriage travels on the road surface, the swing rod 3 can swing along the axis of the support shaft 2, so that the spring in the shock absorber 4 is compressed or elongated. The shock absorber 4 can play a shock absorption role for the rear wheels of the baby carriage, greatly improving the riding experience of children. And this shock absorption mechanism has a simple and reliable structure and low manufacturing cost.
[0025] One end of each of the two swing rods 3 away from the support shaft 2 is connected by a rotating shaft 6. Wheels 7 are fixed at both ends of the rotating shaft 6. The wheels 7 are located outside the swing rods 3. A limiting block 32 is provided at the lower part of the swing rod 3. The rotating shaft 6 includes a bearing seat 61 corresponding to the limiting block 32. The bearing seat 61 is installed in the limiting block 32. A second connecting piece 33 is connected to the side of the limiting block 32 away from the swing rod 3. The second connecting piece 33 abuts against the bearing seat 61 to fix the bearing seat 61. Specifically, connecting sleeves 9 are fixed at both ends of the rotating shaft 6 close to the outer side. A transfer member 8 is fixed on the inner side of the wheel 7. Both ends of the rotating shaft 6 are inserted into the wheel 7. The transfer member 8 and the connecting sleeve 9 are fixedly connected. A key groove 91 is provided inside the connecting sleeve 9. A shaft key 62 is installed in the key groove 91. The connecting sleeve 9 and the rotating shaft 6 are fixed by the shaft key 62. A limiting groove 71 is provided on the inner side of the wheel 7. The transfer member 8 is inserted into the limiting groove 71 and fixed. The connecting sleeve 9 is sleeved outside the transfer member 8 and fixedly connected to the transfer member 8. During assembly, first, the rotating shaft 6 and the connecting sleeve 9 are fixed by the shaft key 62, and the wheel 7 and the transfer member 8 are fixed by bolts; then the rotating shaft 6 is inserted into the wheel 7 fixed with the transfer member 8, and the connecting sleeve 9 is sleeved outside the transfer member 8; finally, bolts are inserted from the inner side of the connecting sleeve 9 and fixed to the transfer member 8. Through the above design, not only can the wheel 7 be effectively fixed, but also the disassembly of the wheel 7 is convenient.
[0026] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. The rear axle shock absorber frame of a baby carriage, characterized in that, It includes a vehicle body (1) and a shock absorption mechanism. An installation groove (11) is provided at the bottom of the vehicle body (1). The shock absorption mechanism includes a support shaft (2). The support shaft (2) is installed in the installation groove (11). The support shaft (2) can rotate in the installation groove (11). Both ends of the support shaft (2) extend beyond both sides of the bottom of the vehicle body (1), and swing rods (3) are respectively connected to the extending ends. One ends of the two swing rods (3) far from the support shaft (2) are connected by a connecting rod (5). Shock absorbers (4) corresponding to the swing rods (3) are provided on both sides of the vehicle body (1). The shock absorbers (4) are located above the swing rods (3). One end of the shock absorber (4) is hinged to the corresponding swing rod (3), and the other end is hinged to the side of the vehicle body (1).
2. The rear axle shock absorber frame of a baby carriage according to claim 1, characterized in that, The included angle between the shock absorber (4) and the side of the swing rod (3) facing the support shaft (2) is an acute angle.
3. The rear axle shock absorber frame of a stroller according to claim 1, characterized in that, The vehicle body (1) and the support shaft (2) are connected by a first connecting piece (12). The first connecting piece (12) is fixed to the lower part of the vehicle body (1) by bolts. The side of the support shaft (2) abuts against the side of the first connecting piece (12) facing the installation groove (11).
4. The rear axle shock absorber frame of a baby carriage according to claim 1, characterized in that Both ends of the support shaft (2) are provided with a connecting portion (21) and a buffer sleeve (22). The buffer sleeve (22) is sleeved outside the connecting portion (21). The inner sides of the buffer sleeve (22) and the connecting portion (21) abut against the side of the vehicle body (1). The diameter dimension of the connecting portion (21) is larger than the cross-sectional dimension of the installation groove (11). The swing rod (3) is sleeved outside the connecting portion (21). The swing rod (3) can swing along the axis of the support shaft (2).
5. The rear axle shock absorber frame of a stroller according to claim 1, characterized in that, A hinge seat (31) is provided on the upper part of the swing rod (3). The lower part of the shock absorber (4) is hinged to the hinge seat (31).
6. The rear axle shock absorber frame of a baby carriage according to claim 1, characterized in that, One ends of the two swing rods (3) far from the support shaft (2) are connected by a rotating shaft (6). Wheels (7) are fixed at both ends of the rotating shaft (6). The wheels (7) are located outside the swing rods (3). A limiting block (32) is provided at the lower part of the swing rod (3). The rotating shaft (6) includes a bearing seat (61) corresponding to the limiting block (32). The bearing seat (61) is installed in the limiting block (32). A second connecting piece (33) is connected to the side of the limiting block (32) far from the swing rod (3). The second connecting piece (33) abuts against the bearing seat (61) to fix the bearing seat (61).
7. The rear axle shock absorber frame of a baby carriage according to claim 6, characterized in that, Connection sleeves (9) are fixed at positions close to both ends on the outside of the rotating shaft (6). Adapter pieces (8) are fixed on the inner sides of the wheels (7). Both ends of the rotating shaft (6) are inserted into the wheels (7). The adapter pieces (8) and the connection sleeves (9) are fixedly connected.
8. The rear axle shock absorber frame of a baby carriage according to claim 7, characterized in that, A key groove (91) is provided inside the connection sleeve (9). A shaft key (62) is installed in the key groove (91). The connection sleeve (9) and the rotating shaft (6) are fixed by the shaft key (62). A limiting groove (71) is provided on the inner side of the wheel (7). The adapter piece (8) is inserted into the limiting groove (71) for fixation. The connection sleeve (9) is sleeved outside the adapter piece (8) and is fixedly connected to the adapter piece (8).