Rear wheel seat damping structure on baby stroller

Abstract

The rear wheel seat damping structure comprises rear wheels, rear wheel joints and rotating joints, the rear wheels are of a symmetrical structure, the inner sides of the two rear wheels are connected with the rear wheel joints through rear wheel shafts, step grooves are formed in the rear wheel joints, fixing sleeves are installed on the surfaces of the step grooves, sliding sleeves are connected to the outer sides of the fixing sleeves in a sleeved mode, and the sliding sleeves are connected with the rotating joints in a sleeved mode. A pull rod is installed on the sliding sleeve in a penetrating mode, the pull rod penetrates through the rear wheel joint and then is connected with the shifting block through a bearing, the rear wheel joint is connected with the rotating joints through pins, and adjusting rods are installed on the two rotating joints.

Description

TECHNICAL FIELD

[0001] The utility model relates to baby carriage articles field, concretely is a rear wheel seat damping structure on baby carriage with multiple damping effect. BACKGROUND

[0002] Baby carriage is one of indispensable tools in the process of child rearing, it provides a convenient, safe way for parents to carry baby travel, whether it is daily shopping, walking, or travel, baby carriage can provide a comfortable ride environment for the baby, when using the carriage in various road conditions, such as flat sidewalk, rugged path or bumpy brick road, it is essential to ensure the comfort and safety of the baby.

[0003] The traditional baby carriage does not have a special damping design in the rear wheel seat part, or the damping effect is not obvious, when passing through uneven road, the wheel directly transmits the vibration to the frame and seat, resulting in that the baby feels strong bumping, which not only makes the baby feel uncomfortable, but also may have adverse effects on the physical development of the baby, especially the head and spine of the baby. CONTENT OF THE NEW UTILITY MODEL

[0004] The technical problem to be solved by the utility model lies in providing a rear wheel seat damping structure on baby carriage which can play a good damping effect on uneven road sections.

[0005] In order to solve the above-mentioned technical problems, the utility model adopts the following scheme: a rear wheel seat damping structure on baby carriage, including rear wheel, rear wheel joint, rotating joint, the rear wheel is symmetrical structure, both rear wheel inner sides are connected with rear wheel joint through rear wheel shaft, rear wheel joint is equipped with step groove, step groove surface is installed with fixed sleeve, fixed sleeve outside is sleeved with sliding sleeve, sliding sleeve is installed with pull rod, pull rod passes through rear wheel joint and is connected with push block through bearing, rear wheel joint is connected with rotating joint through pin, both rotating joints are installed with adjusting rod.

[0006] As a preferred, the sliding sleeve is connected with the fixed sleeve through the sliding groove, the fixed sleeve inner cavity is equipped with the adjusting spring, and the adjusting spring is sleeved on the outer side of the pull rod.

[0007] As a preferred, the rear wheel joint is internally provided with a mounting groove, a limiting spring is installed in the mounting groove, the limiting spring bottom is connected with a limiting sheet, the limiting sheet is connected with the rear wheel shaft through a clamping groove, and the limiting sheet surface is provided with an adjusting hole.

[0008] As a preferred, the adjusting hole is connected with the connecting hole in the rear wheel joint through a nut, and the adjusting hole diameter is greater than the connecting hole diameter.

[0009] As a preferred, the gap is provided between the clamping groove and the rear wheel shaft.

[0010] As preferred, the dial block drives the pull rod to drive the sliding sleeve to adjust up and down along the outside of the fixed sleeve.

[0011] The utility model discloses adopted above -mentioned technical scheme provides a rear wheel damping structure on baby's handcart, can play an effective damping effect on different flat road section, compared with prior art, has the following advantages:

[0012] 1、The damping structure can significantly reduce the vibration of the handcart in the running process due to uneven road, whether it is through the cobblestone path, brick pavement or slightly pitted sidewalk, can filter out the bump to the greatest extent, makes the baby as if in the stable environment, greatly improves the comfort of riding.

[0013] 2、The rear wheel seat damping structure can make the handcart more stable in the running process, when the wheel meets the obstacle or uneven road, the damping structure can buffer the impact force, prevent the handcart from suddenly tilting or shaking, thereby reducing the risk of overturning.

[0014] 3, can make the handcart better adapt to various different road conditions, whether it is flat road or rugged mountain road, can keep good performance, this not only increases the use range of the handcart, also reduces the damage to the handcart due to poor road conditions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structural schematic diagram of the utility model,

[0016] Fig. 2 It is the structural schematic diagram of the rear wheel of the utility model,

[0017] Fig. 3 It is the local schematic diagram of the rear wheel of the utility model,

[0018] Fig. 4 It is the installation structural schematic diagram of the fixed sleeve and sliding sleeve of the utility model.

[0019] In the drawing, rear wheel 1, rear wheel joint 2, rotating joint 3, rear wheel shaft 4, step groove 5, fixed sleeve 6, sliding sleeve 7, pull rod 8, dial block 9, adjusting rod 10, sliding slot 11, adjusting spring 12, installation slot 13, limit spring 14, limit sheet 15, clamping groove 16, adjusting hole 17, connecting hole 18. CONCRETE IMPLEMENTATION

[0020] As Figs. 1 to 4As shown, a rear wheel seat damping structure of a baby stroller, including rear wheel 1, rear wheel joint 2, rotating joint 3, the rear wheel 1 is symmetrical structure, both rear wheel 1 inside is connected with rear wheel joint 2 through rear wheel axle 4, rear wheel joint 2 is equipped with step groove 5, step groove 5 surface is equipped with fixed sleeve 6, fixed sleeve 6 outside sleeve is connected with sliding sleeve 7, sliding sleeve 7 is inserted and installed with pull rod 8, pull rod 8 passes through rear wheel joint 2 and is connected with the knob 9 through bearing, rear wheel joint 2 is connected with rotating joint 3 through pin, both rotating joint 3 is installed with adjusting rod 10, sliding sleeve 7 is connected with fixed sleeve 6 through sliding groove 11, fixed sleeve 6 inner chamber is equipped with adjusting spring 12, adjusting spring 12 sleeve is connected on the outside of pull rod 8, rear wheel joint 2 is equipped with installation groove 13 in, limit spring 14 is installed in installation groove 13, limit spring 14 bottom is connected with limit piece 15, limit piece 15 is connected with rear wheel axle 4 through clamping groove 16, limit piece 15 surface is equipped with adjusting hole 17, adjusting hole 17 is connected with connecting hole 18 in rear wheel joint 2 through nut, and adjusting hole 17 diameter is greater than connecting hole 18 diameter, the clearance is equipped with between clamping groove 17 and rear wheel axle 4, knob 9 drives pull rod 8 to drive sliding sleeve 7 along with fixed sleeve 6 outside up and down adjustment.

[0021] In actual work, rear wheel axle 4 is arranged on rear wheel 1, rear wheel joint 2 is sleeved on rear wheel axle 4 and is installed inside rear wheel 1, limit spring 14 is arranged in installation groove 13 inside rear wheel joint 2, limit spring 14 is installed on limit piece 15, limit piece 15 is installed on rear wheel axle 4 through clamping groove 16, clamping groove 16 and the edge of rear wheel axle 4 are provided with a certain spacing, therefore, in the process of walking on the bumpy road section of baby stroller, limit piece 15 can extrude limit spring 14 under the action of limit spring 14, and a damping effect is played on rear wheel seat.

[0022] Step groove 5 is arranged on the upper surface of rear wheel joint 2, fixed sleeve 6 and sliding sleeve 7 are sequentially installed on step groove 5, sliding sleeve 7 is sleeved on fixed sleeve 6, pull rod 8 is inserted and installed on the upper surface of sliding sleeve 7, the edge diameter of the end of pull rod 8 is greater than the hole diameter of the surface of sliding sleeve 7, which can effectively limit pull rod 8, adjusting spring 12 is sleeved on pull rod 8, limit spring 12 can be extruded when encountering the bumpy road section, which is convenient for playing a damping effect on rear wheel seat, in addition, knob 9 is installed on pull rod 8, when rotating knob 9, pull rod 8 can be driven to drive sliding sleeve 7 to adjust, the tension of adjusting spring 12 can be effectively adjusted, and the use is more convenient.

[0023] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A shock-absorbing structure for the rear wheel seat of a baby stroller, comprising a rear wheel (1), a rear wheel joint (2), and a rotating joint (3), characterized in that: The rear wheel (1) has a symmetrical structure. The inner sides of both rear wheels (1) are connected to the rear wheel joint (2) through the rear wheel axle (4). The rear wheel joint (2) is provided with a stepped groove (5). A fixed sleeve (6) is installed on the surface of the stepped groove (5). A sliding sleeve (7) is sleeved on the outside of the fixed sleeve (6). A pull rod (8) is inserted on the sliding sleeve (7). The pull rod (8) passes through the rear wheel joint (2) and is connected to the lever (9) through a bearing. The rear wheel joint (2) is connected to the rotating joint (3) through a pin. An adjusting rod (10) is installed on the two rotating joints (3).

2. The shock-absorbing structure for the rear wheel seat of a baby stroller according to claim 1, characterized in that: The sliding sleeve (7) is connected to the fixed sleeve (6) through the sliding groove (11). The inner cavity of the fixed sleeve (6) is provided with an adjusting spring (12), which is sleeved on the outside of the pull rod (8).

3. The shock-absorbing structure for the rear wheel seat of a baby stroller according to claim 1, characterized in that: The rear wheel joint (2) is provided with an installation groove (13), and a limit spring (14) is installed in the installation groove (13). The bottom of the limit spring (14) is connected to the limit piece (15). The limit piece (15) is connected to the rear wheel axle (4) through a slot (16). The surface of the limit piece (15) is provided with an adjustment hole (17).

4. The shock-absorbing structure for the rear wheel seat of a baby stroller according to claim 3, characterized in that: The adjustment hole (17) is connected to the connecting hole (18) in the rear wheel joint (2) by a nut, and the diameter of the adjustment hole (17) is larger than the diameter of the connecting hole (18).

5. The shock-absorbing structure for the rear wheel seat of a baby stroller according to claim 3, characterized in that: A gap is provided between the slot (16) and the rear wheel axle (4).

6. The shock-absorbing structure for the rear wheel seat of a baby stroller according to claim 1, characterized in that: The lever (9) drives the pull rod (8) to move the sliding sleeve (7) up and down along the outside of the fixed sleeve (6).

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