Steering structure of baby carriage

Abstract

The utility model relates to the technical field of children products, in particular to a steering structure of a baby carriage, which comprises a carriage beam and a sleeve, one end of the carriage beam is fixedly connected with the sleeve, the inner wall of the sleeve is fixedly connected with a vertical handle, a steering limiting mechanism is arranged in the vertical handle, the other end of the carriage beam is fixedly connected with a vertical rod, and the vertical rod is fixedly connected with the sleeve. And the upper end of the vertical rod is fixedly connected with the saddle. Through cooperation of a vertical handle and a steering limiting mechanism, an operator inserts a limiting bolt into a through hole, the distance between the end of the limiting bolt and a rotating rod is smaller than the length of a limiting block, the size of the limiting bolt is slightly smaller than the diameter of the through hole, a first rotating shaft drives a second rotating shaft to rotate, and the second rotating shaft drives a first transverse rod to rotate; the first transverse rod drives the two front wheels on the two sides to rotate, steering of the baby carriage can be completed in the mode, the situation that the baby carriage topples over due to the fact that the angle of the baby carriage is rotated too large is avoided, and therefore the use danger of the baby carriage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of children's products, in particular to a steering structure of a baby carriage. Background Art

[0002] Baby carriages are a major category of travel products, including children's bicycles, baby strollers, baby walkers, children's tricycles, and children's electric vehicles. The applicable age range for children's bicycles is 4 to 8 years old. When purchasing, select a suitable size in combination with the child's age and height, that is, a bicycle with a saddle height in the range of 435 to 635 mm. Pay attention to the size of the brake lever of the handbrake when purchasing a vehicle.

[0003] For example, a steering structure and a baby carriage with the authorization announcement number of "CN211364825U", the rotating rod is inclined. When the handle is rotated to drive the rotating rod to rotate, it can ensure that the frame will not tilt when the two front wheels turn, thus avoiding toddlers from falling. However, for this steering structure and baby carriage, the steering structure is not provided with a limiting structure. This leads to when a child uses the baby carriage to move and play, the rotation of the handle causes the front wheels to rotate, resulting in the baby carriage tipping over, which increases the risk of using the baby carriage. At the same time, for this steering structure and baby carriage, the steering structure is placed inside the front sleeve. Therefore, when the steering structure needs to be lubricated or the like to assist rotation, the front sleeve needs to be completely removed for processing, which is not convenient for the operator to repair the baby carriage. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems that the steering structure is not provided with a limiting structure, which leads to when a child uses the baby carriage to move and play, the rotation of the handle causes the front wheels to rotate, resulting in the baby carriage tipping over, which increases the risk of using the baby carriage, and the steering structure is placed inside the front sleeve. Therefore, when the steering structure needs to be lubricated or the like to assist rotation, the front sleeve needs to be completely removed for processing, which is not convenient for the operator to repair the baby carriage, and a steering structure of a baby carriage is proposed.

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

[0006] Design a steering structure of a baby carriage, including a car beam and a sleeve. One end of the car beam is fixedly connected to the sleeve, the inner wall of the sleeve is fixedly connected to a vertical handle, a steering limiting mechanism is arranged inside the vertical handle, and a side baffle fixing mechanism is arranged outside the vertical handle.

[0007] Preferably, the steering limiting mechanism includes a rotating rod and through holes. The outer wall of the rotating rod is movably connected to the vertical handle through a bearing. A limiting block is fixedly connected to the outer wall of the rotating rod. Multiple through holes are processed on the surface of the vertical handle. The size of the through holes matches the size of the surface of the limiting block. The lower end of the rotating rod is movably connected to a first cross bar through a pin shaft.

[0008] Preferably, both ends of the first crossbar are rotatably connected to the front wheels through bearings. The upper end of the rotating rod is fixedly connected to the handlebar, and armrests are installed at both ends of the handlebar.

[0009] Preferably, the side baffle fixing mechanism includes a clamping block. The outer wall of the clamping block is slidably connected to the vertical handle through a chute. The outer wall of the clamping block is fixedly connected to the side baffle. The outer wall of the side baffle is in contact with the vertical handle. The outer wall of the side baffle is threadedly connected to a tightening bolt, and the end of the tightening bolt is threadedly connected to the vertical handle.

[0010] For a steering structure of a baby carriage proposed by the present utility model, the beneficial effect is as follows: Through the cooperation of the vertical handle and the steering limit mechanism, the operator inserts the limit bolt into the through hole so that the distance between the end of the limit bolt and the rotating rod is less than the length of the limit block, and the size of the limit bolt is slightly smaller than the diameter of the through hole. This enables the tightening bolt to be placed into the through hole without significant movement. Therefore, when a child rotates the handlebar through the armrest, the handlebar drives the rotating rod to rotate. While the rotating rod drives the limit block to rotate, it also drives the first rotating shaft below to rotate. The first rotating shaft drives the second rotating shaft to rotate, and the second rotating shaft drives the first crossbar to rotate. The first crossbar drives the two front wheels on both sides to rotate. Through the above method, the steering of the baby carriage can be completed, which avoids the situation that the angle of the baby carriage rotates too much and causes it to tip over, thereby reducing the usage risk of the baby carriage.

[0011] Through the cooperation of the vertical handle and the side baffle fixing mechanism, the operator unscrews the tightening bolt to move the tightening bolt away from the vertical handle. Then the operator removes the side baffle and the clamping block from the vertical handle. After that, the operator performs maintenance and repair work on the internal rotating shaft. After the repair is completed, the operator sends the clamping block along the chute to the vertical handle, makes the side baffle close to the vertical handle, and then fixes the side baffle on the vertical handle through the tightening bolt to complete the inspection and maintenance work of the steering structure. Through the above method, the rotating shaft can be maintained and repaired without removing the entire vertical handle, thus facilitating the operator to maintain the baby carriage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 a front view schematic diagram after removing one wheel;

[0014] Figure 3 is Figure 2 a top view cross-sectional schematic diagram of

[0015] Figure 4 is Figure 3 a partial three-dimensional schematic diagram of the rotating rod and the limit block in

[0016] In the figure: 1, vehicle beam; 2, sleeve; 3, vertical handle; 4, steering limit mechanism; 401, rotating rod; 402, limit block; 403, through hole; 404, first cross bar; 5, front wheel; 6, side baffle fixing mechanism; 601, clamping block; 602, tightening bolt; 603, side baffle; 7, handlebar; 8, armrest. Specific implementation mode

[0017] The present utility model will be further described below in conjunction with the accompanying drawings:

[0018] Refer to the attached Figures 1-4 : In this embodiment, a steering structure of a baby carriage includes a vehicle beam 1 and a sleeve 2. One end of the vehicle beam 1 is fixedly connected to the sleeve 2. The inner wall of the sleeve 2 is fixedly connected to a vertical handle 3. A steering limit mechanism 4 is provided inside the vertical handle 3, and a side baffle fixing mechanism 6 is provided outside the vertical handle 3;

[0019] Both ends of the first cross bar 404 are rotatably connected to the front wheel 5 through bearings. The front wheel 5 rotates on the first cross bar 404. The upper end of the rotating rod 401 is fixedly connected to the handlebar 7. The handlebar 7 drives the rotating rod 401 to rotate. Armrests 8 are installed at both ends of the handlebar 7. The armrests 8 drive the handlebar 7 to rotate.

[0020] Refer to the attached Figure 2 、 Figure 3 and Figure 4 : In this embodiment, a steering structure of a baby carriage, the steering limit mechanism 4 includes a rotating rod 401 and a through hole 403. The outer wall of the rotating rod 401 is movably connected to the vertical handle 3 through a bearing. The rotating rod 401 rotates on the vertical handle 3. The outer wall of the rotating rod 401 is fixedly connected to a limit block 402. The rotating rod 401 drives the limit block 402 to rotate. Multiple through holes 403 are machined on the surface of the vertical handle 3. The size of the through hole 403 matches the size of the surface of the limit block 402. The diameter of the through hole 403 is slightly smaller than the diameter of the arc on the surface of the limit block 402. The lower end of the rotating rod 401 is movably connected to the first cross bar 404 through a pin shaft. The first cross bar 404 rotates on the rotating rod 401.

[0021] Refer to the attached Figure 3 : In this embodiment, a steering structure of a baby carriage, the side baffle fixing mechanism 6 includes a clamping block 601. The outer wall of the clamping block 601 is slidably connected to the vertical handle 3 through a chute. The clamping block 601 slides on the vertical handle 3. The outer wall of the clamping block 601 is fixedly connected to a side baffle 603. The clamping block 601 drives the side baffle 603 to move. The outer wall of the side baffle 603 is in contact with the vertical handle 3. The side baffle 603 closely adheres to the vertical handle 3. The outer wall of the side baffle 603 is threadedly connected to a tightening bolt 602. The tightening bolt 602 fixes the position of the side baffle 603. The end of the tightening bolt 602 is threadedly connected to the vertical handle 3. The tightening bolt 602 is tightened on the vertical handle 3.

[0022] Working principle:

[0023] When using the baby carriage:

[0024] Steering angle limit stage:

[0025] First, the operator inserts the limit bolt into the through hole 403, making the distance between the end of the limit bolt and the rotating rod 401 less than the length of the limit block 402. The size of the limit bolt is slightly smaller than the diameter of the through hole 403, which enables the tightening bolt to be placed in the through hole 403 without significant movement. Therefore, when a child rotates the handlebar 7 through the armrest 8, the handlebar 7 drives the rotating rod 401 to rotate. While the rotating rod 401 drives the limit block 402 to rotate, it also drives the lower first cross bar 404 to rotate. The first cross bar 404 drives the two front wheels 5 on both sides to rotate, thus completing the steering of the baby carriage. When the two front wheels 5 rotate to a certain angle, the limit block 402 is blocked by the limit bolt, so that the handlebar 7 can no longer drive the front wheels 5 to rotate.

[0026] Steering structure maintenance stage:

[0027] The operator unscrews the tightening bolt 602 to move the tightening bolt 602 away from the vertical handle 3. Then the operator removes the side baffle 603 with the clamping block 601 from the vertical handle 3. After that, the operator repairs and maintains the internal rotating shaft. After the repair is completed, the operator sends the clamping block 601 along the sliding groove to the vertical handle 3, making the side baffle 603 closely adhere to the vertical handle 3. Then, the side baffle 603 is fixed on the vertical handle 3 through the tightening bolt 602, completing the maintenance work of the steering structure.

[0028] Although the present utility model has been illustrated and described by referring to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details may be made within the scope of the claims.

Claims

1. A steering structure for a baby carriage, comprising a carriage beam (1) and a sleeve (2), wherein one end of the carriage beam (1) is fixedly connected to the sleeve (2), and characterized in that: The inner wall of the sleeve (2) is fixedly connected to the vertical handle (3); a steering limit mechanism (4) is provided inside the vertical handle (3); and a side baffle fixing mechanism (6) is provided outside the vertical handle (3).

2. A steering structure for a baby carriage according to claim 1, characterized in that: The steering limit mechanism (4) comprises a rotating rod (401) and a through hole (403); the outer wall of the rotating rod (401) is movably connected to the vertical handle (3) via a bearing; the outer wall of the rotating rod (401) is fixedly connected to the limit block (402); a plurality of through holes (403) are machined on the surface of the vertical handle (3); the size of the through holes (403) matches the size of the surface of the limit block (402); and the lower end of the rotating rod (401) is movably connected to the first cross bar (404) via a pin shaft.

3. A steering structure for a baby carriage according to claim 2, characterized in that: Both ends of the first crossbar (404) are rotatably connected to the front wheel (5) via bearings, the upper end of the rotating rod (401) is fixedly connected to the handlebar (7), and handrails (8) are installed at both ends of the handlebar (7).

4. The steering structure of a baby carriage according to claim 1, characterized in that: The side baffle fixing mechanism (6) comprises a clamping block (601), the outer wall of the clamping block (601) being slidably connected to the vertical handle (3) via a sliding groove, the outer wall of the clamping block (601) being fixedly connected to the side baffle (603), the outer wall of the side baffle (603) being in contact with the vertical handle (3), the outer wall of the side baffle (603) being threadedly connected to a clamping bolt (602), and the end of the clamping bolt (602) being threadedly connected to the vertical handle (3).

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