Seat rotating structure of doll car

Abstract

The utility model relates to the technical field of baby products, in particular to a seat rotating structure of a baby carriage, which is characterized in that a seat tray is mounted on a carriage frame group, a seat component is mounted on the seat tray through a seat connecting block, a cam at the bottom of the seat connecting block is mounted in a groove position of the seat tray, and the cam is propped against a convex point of the groove position to rotate in an arc manner; the bottom of the seat assembly is connected to one end of the seat return spring, and the other end of the seat return spring is connected to the frame assembly. The child seat has the advantages that the center of gravity of a car frame can be kept stable all the time when the child seat is used, rotation adjustment of seats on the market at present is mostly achieved through fixed center shaft rotation and single-axis rotation, and transverse translation movement can be achieved while single-axis rotation is achieved in the scheme. The influence on function realization due to interference between the seat and the frame when the seat rotates or the injury to children due to unstable gravity center when the frame is used can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of baby products, and more specifically, to a seat rotation structure of a baby stroller. Background Art

[0002] A baby stroller is a tool vehicle designed to facilitate outdoor activities for babies. It is one of the most favorite means of transportation for babies and a must-have for mothers when they take their babies shopping. Most baby strollers use one-way seats, and a few are steerable seats. When steering is required, the seat needs to be disassembled, and the disassembly method is also quite troublesome, and the structural design is unreasonable.

[0003] In view of the above-mentioned deficiencies in the seat structure of the stroller, the applicant adheres to the spirit of research innovation and excellence, combines production practice, and uses professional and scientific methods to propose a practical solution, and therefore files this application. Utility Model Content

[0004] The purpose of the utility model is to provide a seat rotation structure of a baby stroller in view of the existing technical status, so as to complete the rotation of the seat conveniently and quickly.

[0005] A seat rotation structure for a baby stroller comprises: a seat tray, a seat connecting block, a seat assembly, and a frame assembly, wherein the seat tray is mounted on the frame assembly, the seat assembly is mounted on the seat tray via the seat connecting block, a cam at the bottom of the seat connecting block is mounted in a slot of the seat tray, the cam rotates in an arc against a convex point of the slot, the bottom of the seat assembly is connected to one end of a seat return spring, and the other end of the seat return spring is connected to the frame assembly.

[0006] Specifically, the bottom of the seat connecting block is composed of two fan-shaped cams symmetrically distributed on the left and right sides. The convex arc of the seat tray slot is a triangle with chamfers. The shapes of the cam and the convex arc are specially designed to ensure that the cam can complete the turning smoothly when it is displaced, and the whole process is relatively smooth to avoid jamming.

[0007] Specifically, the cam of the seat connecting block and the convex arc angle of the seat tray are the same, and the structural design is more reasonable, which can make the two fit more closely, not only ensuring smooth rotation, but also ensuring that the seat is stable enough after turning.

[0008] Specifically, the left and right sides of the cam of the seat connection block are provided with inwardly recessed reversing slots, and the reversing handle is inserted into the reversing slot through the outer side of the seat tray. The reversing handle can further lock the seat connection block to prevent the seat connection block from making relative movement and causing unnecessary shaking.

[0009] Specifically, a reversing handle spring is provided in the middle of the reversing handle, one end of the reversing handle spring presses against the middle of the reversing handle, and the other end of the reversing handle spring presses against the convex column of the seat tray. The reversing handle spring acts as an inward pulling force to achieve rapid resetting of the reversing handle.

[0010] Specifically, a rotating disc is provided on the top of the seat connecting block, the seat reinforcing iron sheet is installed on the seat tray, the seat tray is located between the seat reinforcing iron sheet and the seat tray, the rotating disc moves along the limiting slide groove of the seat reinforcing iron sheet, and the limiting slide groove limits the rotating disc when it moves forward and backward.

[0011] Specifically, the cams of the seat connection blocks are each provided with a downwardly protruding column, which moves along the slide rails of the seat tray. The two columns can limit the displacement path of the seat connection block, ensuring that the seat connection block can achieve its own forward and backward displacement while turning.

[0012] The beneficial effects of the present invention are as follows: the cam of the seat connecting block cooperates with the convex arc of the seat tray so that the seat can be displaced a short distance to one side while turning. The purpose of the mechanism design of this scheme is to keep the center of gravity of the vehicle platform stable when the child seat is in use. Most of the seat rotation adjustments on the market now are fixed center axis rotations, which are single-axis rotations, while this scheme can also perform lateral translation while rotating on a single axis, effectively avoiding interference between the seat and the vehicle frame when rotating, affecting the function or avoiding injuries to children due to insufficient center of gravity when the vehicle platform is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is an exploded view of the utility model;

[0014] Attached Figure 2 It is a cross-sectional view of the utility model;

[0015] Attached Figure 3 This is a state diagram of the utility model after the turning is completed;

[0016] Attached Figure 4 This is a motion state diagram of the turning process of the utility model.

[0017] Description and marking: seat tray 1, seat connecting block 2, seat assembly 3, frame assembly 4, seat reinforcement iron sheet 5, reversing handle spring 6, seat return spring 7, reversing handle 8, reversing slot 9; cam 10, convex arc 11, slide rail 12, column 13. DETAILED DESCRIPTION

[0018] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0019] See also Figures 1 to 4 As shown, a seat rotation structure of a baby stroller includes: a seat tray, a seat connection block, a seat assembly, and a frame assembly. The seat tray is installed on the frame assembly, and the seat assembly is installed on the seat tray through the seat connection block. The cam at the bottom of the seat connection block is installed in the slot of the seat tray, and the cam rotates along the convex arc of the slot. The bottom of the seat assembly is connected to one end of the seat return spring, and the other end of the seat return spring is connected to the frame assembly. A rotating disc is provided on the top of the seat connection block, and the seat reinforcement iron sheet is installed on the seat tray. The seat tray is located between the seat reinforcement iron sheet and the seat tray, and the rotating disc moves along the limit sliding groove of the seat reinforcement iron sheet.

[0020] Installation steps: 1. Install the reversing handle spring into the reversing handle slot, and then install the seat tray, install the seat connecting block into the seat tray, cover it with the seat reinforcement iron sheet, align the holes and fix it with rivets; 2. Pass the seat rotating shaft through the center hole of the seat group seat plate, and then pass through the seat connecting block, seat tray, iron gasket, tray decorative part, seat return spring in turn and tighten it with a nut; 3. Install the other end of the seat return spring into the tray connecting seat hole in the frame assembly, and fix it with rivets; 4. Align the center screw hole of the seat group seat plate with the seat connecting block and fix it with screws, so that the seat connecting block and the seat group become a whole.

[0021] In the above scheme, the bottom of the seat connection block is formed by two symmetrically distributed fan-shaped cams on the left and right sides, and the convex arc of the seat tray slot is a triangle with a chamfer. The cam of the seat connection block and the convex arc of the seat tray have the same included angle. The cams of the seat connection block are all provided with a downwardly protruding column, which moves along the slide rail of the seat tray.

[0022] In the above scheme, the left and right sides of the cam of the seat connecting block are provided with inwardly recessed reversing slots, and the reversing handle is inserted into the reversing slot through the outer side of the seat tray. A reversing handle spring is provided in the middle of the reversing handle, one end of the reversing handle spring presses against the middle of the reversing handle, and the other end of the reversing handle spring presses against the convex column of the seat tray.

[0023] Functionality:

[0024] 1. Pull the reversing handle to disengage the seat connection block and turn the seat assembly to the left at the same time. At this time, the seat connection block and the cam on the seat tray mechanism will move, causing the seat assembly to move forward as shown in the figure;

[0025] 2. Continue to rotate the seat group. At this time, the outer circle of the seat connection block is tangent to the convex arc of the seat tray. The seat group reaches the maximum forward travel, and the seat return tension spring also reaches the maximum stretching travel;

[0026] 3. Continue to rotate the seat group to a position close to the completion of the forward reversal. At this time, the seat group automatically returns to its original position by relying on the tension of the seat return spring. At this time, the reversing handle returns to its original position and snaps into the seat connection block. The seat reversal is completed. If you need to continue reversing, repeat the above operation to complete it.

[0027] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A seat rotation structure of a baby stroller, comprising: A seat tray, a seat connecting block, a seat assembly, and a frame group, characterized in that: the seat tray is installed on the frame group, the seat assembly is installed on the seat tray through the seat connecting block, the cam at the bottom of the seat connecting block is installed in the slot of the seat tray, the cam rotates in an arc against the convex point of the slot, the bottom of the seat assembly is connected to one end of the seat return spring, and the other end of the seat return spring is connected to the frame group.

2. The seat rotation structure of a baby stroller according to claim 1, characterized in that: The bottom of the seat connection block is formed by two left and right fan-shaped cams that are symmetrically distributed, and the convex arc of the seat tray slot is a triangle with a chamfer.

3. The seat rotation structure of a baby stroller according to claim 2, characterized in that: The cam of the seat connection block and the convex point arc of the seat tray have the same included angle.

4. A seat rotation structure for a baby stroller according to any one of claims 1 to 3, characterized in that: The left and right sides of the cam of the seat connection block are both provided with inwardly recessed reversing slots, and the reversing pull handle is inserted into the reversing slot through the outer side of the seat tray.

5. The seat rotation structure of a baby stroller according to claim 4, characterized in that: A reversing handle spring is arranged in the middle of the reversing handle, one end of the reversing handle spring presses against the middle of the reversing handle, and the other end of the reversing handle spring presses against the convex column of the seat tray.

6. A seat rotation structure for a baby stroller according to any one of claims 1 to 3, characterized in that: A rotating disc is provided on the top of the seat connection block, the seat reinforcement iron sheet is installed on the seat tray, the seat tray is located between the seat reinforcement iron sheet and the seat tray, and the rotating disc moves along the limiting slide groove of the seat reinforcement iron sheet.

7. The seat rotation structure of a baby stroller according to claim 6, characterized in that: The cams of the seat connection blocks are all provided with a column protruding downwards, and the column moves along the slide rail of the seat tray.

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