WO2022033378A1

WO2022033378A1 - Child's tricycle having multi-mode operation

Info

Publication number: WO2022033378A1
Application number: PCT/CN2021/110689
Authority: WO
Inventors: 叶礼发; 马佐耶约瑟夫
Original assignee: 广东顺德小将军婴幼儿用品有限公司; 创意念有限公司
Priority date: 2020-08-08
Filing date: 2021-08-04
Publication date: 2022-02-17
Also published as: CN111959660A

Abstract

A child's tricycle having multi-mode operation, the tricycle comprising a tricycle frame (1), wherein a seat (2) is mounted at the middle of the tricycle frame (1); rear wheels (3) are mounted at the tail of the tricycle frame (1); a sleeve (5) is arranged at the front part of the tricycle frame (1); a locking cylinder (6) is rotatably mounted inside the sleeve (5); a handlebar (4) is mounted at the top of the locking cylinder (6); a swing frame (7) is rotatably mounted at the bottom of the locking cylinder (6); a steering hole (71) is provided at the bottom of the swing frame (7); a steering frame (8) is rotatably mounted in the steering hole (71) by means of a hinge shaft (81) in the middle thereof; an upper locking device (9) is arranged between the locking cylinder (6) and the swing frame (7); and a lower locking device is arranged between the swing frame (7) and the steering frame (8). The child's tricycle has a simple structure, low production costs, a simple locking operation and convenient and rapid operation, and has multiple operation modes; and a user can select and use the child's tricycle according to actual requirements.

Description

A children's tricycle with multi-mode operation

technical field

The invention relates to a children's tricycle, in particular to a children's tricycle with multi-mode operation.

Background technique

At present, most of the stroller steering on the market is that the handlebar is connected to the handlebar, the lower end of the handlebar is the front fork, and the front fork is connected to the wheel axle passing through the wheel. wheels to achieve steering. However, most of the above baby carriages have only one front wheel, the balance of children is poor, and the steering front wheel has only one front wheel, which is not conducive to the balance of the baby carriage during steering, which is easy to cause children to fall during the steering process. Changed to two-wheeled to improve the balance of the stroller when turning.

Due to the dual-wheel steering, the stroller in the prior art becomes very flexible when changing directions, and the changeable steering operation requires users to have a certain technical level, which is not suitable for beginners. In addition, the existing stroller does not have a structure for locking the steering function, and the user cannot freely lock or unlock the steering of the front wheel according to their own needs, which is inconvenient and inflexible in use. Therefore, it is necessary to further improve it.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the shortcomings of the prior art, and to provide a children's tricycle with multi-mode operation, which is simple in structure, can be locked or unlocked quickly, is convenient for users to use, and has multiple operation modes.

The object of the present invention is achieved in the following manner: a children's tricycle with multi-mode operation is characterized in that: it comprises a frame, a seat is installed in the middle of the frame, a rear wheel is installed at the tail of the frame, and a rear wheel is installed at the rear of the frame. The front part is provided with a sleeve, a locking cylinder is rotatably installed in the sleeve, a handlebar is installed on the top of the locking cylinder, a rocking frame is rotatably installed at the bottom of the locking cylinder, and the bottom of the rocking frame is provided with a turning hole, one turning The frame is rotatably installed in the steering hole through a hinge shaft in the middle, an upper locking device is arranged between the locking cylinder and the swing frame, and a lower locking device is arranged between the swing frame and the bogie frame.

The upper locking device includes a locking hole penetrating the cylindrical surface of the locking cylinder and a positioning hole arranged on the swing frame. A locking column is inserted into the locking hole through the positioning hole to connect the locking cylinder with the swing frame. Coaxial connection.

The upper locking device also includes a positioning ring arranged between the sleeve and the locking cylinder, the positioning ring is provided with a limit groove between the locking holes, and the side of the sleeve opposite to the limit groove is provided with a lock. The locking post can be inserted into the locking hole.

The outer column of the locking column is recessed inward to form a clamping groove, and the positioning ring is clamped in the clamping groove.

The outer end of the locking column is provided with a rotating handle, the inner end of the locking column is provided with an external thread, and correspondingly, a corresponding internal thread is provided in the locking hole.

The lower locking device includes an insertion rod built into the movable slot at the lower end of the rocking frame, the insertion rod can slide along the movable slot, and the insertion rod extends into and is clamped in the slot on the inner end face of the bogie to connect the swing frame to the bogie. Lock the connection.

The outer end of the insertion rod is provided with a push rod, and the push rod is located in the movable groove of the rocking frame and protrudes from the rocking frame.

A guide rod is arranged below between the insertion rod and the push rod, the guide rod is installed in the guide groove of the bottom cover of the rocker frame, and the guide rod can slide back and forth along the guide groove; the guide groove is a waist-shaped groove.

The insertion rod, the push rod and the guide rod are connected by a baffle, and the baffle is embedded in the movable groove of the rocking frame and can slide back and forth along the movable groove.

The beneficial effects of the invention are as follows: 1. The structure is simple, the production cost is low, and the market competitiveness is improved. 2. The locking operation is simple, convenient and fast. 3. With a variety of operation modes, users can choose to use according to actual needs. 4. It is suitable for children of various ages, saving users the cost of applying the stroller.

Description of drawings

Figure 1 is an effect diagram of the general assembly of the present invention.

Figure 2 is a sectional view of the present invention.

FIG. 3 is an enlarged view of part A of FIG. 2 in the present invention.

FIG. 4 is an assembly structure diagram of the rocking frame and the vehicle frame in the present invention.

FIG. 5 is an assembly structure diagram of a rocking frame and a bogie in the present invention.

FIG. 6 is a schematic structural diagram of a rocking frame in the present invention.

FIG. 7 is an assembly structure diagram of the locking column and the positioning ring in the present invention.

FIG. 8 is a schematic view of the structure of the plunger in the present invention.

FIG. 9 is a schematic view of the structure of the casing in the present invention.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings. A children's tricycle with multi-mode operation is characterized in that: it comprises a frame 1, a seat 2 is installed in the middle of the frame 1, a rear wheel 3 is installed at the rear of the frame 1, and a front part of the frame 1 is installed with Sleeve 5, a locking cylinder 6 is rotatably installed in the sleeve 5, a handlebar 4 is installed on the top of the locking cylinder 6, a rocking frame 7 is rotatably installed at the bottom of the locking cylinder 6, and the bottom of the rocking frame 7 is provided with Turning hole 71, a bogie 8 is rotatably installed in the turning hole 71 through a hinge shaft 81 in the middle, an upper locking device 9 is provided between the locking cylinder 6 and the rocking frame 7, and the rocking frame 7 A lower locking device is provided between it and the bogie 8 .

The upper locking device 9 includes a locking hole 91 penetrating the cylindrical surface of the locking cylinder 6 and a positioning hole 92 provided on the rocking frame 7, and a locking column 10 is inserted into the locking hole 91 through the positioning hole 92, Connect the locking cylinder 6 to the rocking frame 7 coaxially.

The upper locking device 9 also includes a positioning ring 93 arranged between the sleeve 5 and the locking cylinder 6 . The positioning ring 93 is provided with a limit groove 11 between the locking holes 91 , and the sleeve 5 and the limit groove 11 are provided. The opposite side is provided with a locking hole 51 , and the locking column 10 can be inserted into the locking hole 51 .

The outer cylindrical surface of the locking column 10 is recessed inward to form a clamping groove 101 , and the positioning ring 93 is clamped in the clamping groove 101 .

The outer end of the locking column 10 is provided with a rotating handle 102 , the inner end of the locking column 10 is provided with an external thread, and correspondingly, a matching internal thread is provided in the locking hole 51 .

The lower locking device includes an insertion rod 12 built into the movable slot 72 at the lower end of the rocking frame 7, the insertion rod 12 can slide along the movable slot 72, and the insertion rod 12 extends into and is clamped in the slot 82 on the inner end face of the bogie 8. Inside, the rocking frame 7 is locked and connected with the bogie 8 .

The outer end of the insertion rod 12 is provided with a push rod 13 , and the push rod 13 is located in the movable groove 72 of the rocking frame 7 and protrudes from the rocking frame 7 .

A guide rod 14 is arranged below between the insertion rod 12 and the push rod 13, the guide rod 14 is installed in the guide groove 74 of the bottom cover 73 of the rocker 7, and the guide rod 14 can slide back and forth along the guide groove 74; The aforementioned guide groove 74 is a waist-shaped groove.

The insertion rod 12 , the push rod 13 , and the guide rod 14 are connected by a baffle 15 . The baffle 15 is embedded in the movable groove 72 of the rocking frame 7 and can slide back and forth along the movable groove 72 .

Working principle: The children's tricycle in this case includes a frame, the front part of the frame is provided with a sleeve, a locking cylinder is rotatably installed in the sleeve, and the handlebar is installed on the top of the locking cylinder. rack connection. An upper locking device is arranged between the locking cylinder and the rocking frame to lock the locking cylinder and the rocking frame for coaxial connection, and a lower locking device is arranged between the rocking frame and the bogie to lock the rocking frame and the bogie for connection. Users can lock both the rocking frame and the handlebar, or lock both the rocking frame and the bogie, or lock the rocking frame, the handlebar and the bogie at the same time according to different needs. Children's tricycles have a variety of The operation mode is suitable for a variety of environments and children of different ages, with strong practicability.

It should be noted that the upper locking device includes a locking hole penetrating the cylindrical surface of the locking cylinder and a positioning hole provided on the rocking frame. When both the rocking frame and the handlebar need to be locked, the locking posts pass through in turn. The positioning hole is inserted into the locking hole, and continues to extend forward until it is inserted into the locking hole of the sleeve, so as to lock the two, the locking cylinder is coaxially connected with the rocking frame and the sleeve, so when the user turns When the handlebars are used, the bogie cannot be turned. At this time, the baby carriage is steered by gravity. The gravity forces the front wheel on the steering side to increase the force, thereby increasing the friction force between it and the ground, forcing the speed of the front wheel on this side to be lower than that of the other side. By using the speed difference, the bogie is deflected around the steering hole of the rocking frame through the hinge shaft, and finally the steering is realized.

It should be noted that the lower locking device includes an insertion rod built into the movable slot at the lower end of the rocking frame. When both the rocking frame and the bogie need to be locked, the push rod provided at the outer end of the push rod is used to push forward, so that the insertion rod can be pushed forward. The rod extends into the slot at the inner end of the bogie and locks the two. At this time, the bogie loses its gravity steering function, and the steering of the children's tricycle can only be achieved by turning the handlebar.

It should be noted that when the upper locking device and the lower locking device are locked at the same time, the handlebar, the rocking frame and the bogie are locked at the same time. At this time, the children's tricycle can only move in a straight line and cannot be turned. It is used for beginners. use. Compared with the traditional technology, the tricycle in this case has three modes: gravity steering, handlebar steering and non-steering straight walking. Parents can choose and use them according to the actual situation of the children to meet the needs of children's vehicles at different stages. This avoids the need for parents to purchase various forms of strollers for children to use, realizes multiple uses of one thing, and reduces the use cost of users, so it can be widely used.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention.

Claims

A tricycle for children with multi-mode operation is characterized in that: it comprises a frame (1), a seat (2) is installed in the middle of the frame (1), and a rear wheel (3) is installed at the rear of the frame (1). ), the front part of the frame (1) is provided with a sleeve (5), a locking cylinder (6) is rotatably installed in the sleeve (5), and a handlebar (4) is installed on the top of the locking cylinder (6). , the bottom of the locking cylinder (6) is rotatably installed with a rocking frame (7), the bottom of the rocking frame (7) is provided with a steering hole (71), and a bogie (8) can pass through the hinge shaft (81) in the middle. It is rotatably installed in the steering hole (71), an upper locking device (9) is arranged between the locking cylinder (6) and the rocking frame (7), the rocking frame (7) and the bogie (8) A lower locking device is arranged between them.
A children's tricycle with multi-mode operation according to claim 1, characterized in that: the upper locking device (9) comprises a locking hole (91) penetrating the cylindrical surface of the locking cylinder (6) and a device In the positioning hole (92) on the rocking frame (7), a locking column (10) is inserted into the locking hole (91) through the positioning hole (92), and the locking cylinder (6) is connected to the rocking frame (7) make a coaxial connection.
A children's tricycle with multi-mode operation according to claim 2, characterized in that: the upper locking device (9) further comprises a positioning device arranged between the sleeve (5) and the locking cylinder (6) Ring (93), the positioning ring (93) is provided with a limiting groove (11) facing the locking hole (91), and a locking hole ( 51), the locking column (10) can be inserted into the locking hole (51).
A children's tricycle with multi-mode operation according to claim 3, characterized in that: the outer column of the locking column (10) is recessed inward to form a clamping groove (101), and the positioning ring (93) is clamped in inside the card slot (101).
A children's tricycle with multi-mode operation according to claim 3, characterized in that: the outer end of the locking column (10) is provided with a rotating handle (102), and the inner end of the locking column (10) is provided with a rotating handle (102). There are external threads, and correspondingly, the locking holes (51) are provided with internal threads matched with them.
A children's tricycle with multi-mode operation according to claim 1, characterized in that: the lower locking device comprises an insertion rod (12) built into the movable groove (72) at the lower end of the rocking frame (7), and the insertion rod (12) can be slid along the movable groove (72), the insertion rod (12) extends into and is clamped in the slot (82) on the inner end face of the bogie (8), and connects the rocking frame (7) with the bogie (8). ) to lock the connection.
A children's tricycle with multi-mode operation according to claim 6, characterized in that: the outer end of the insertion rod (12) is provided with a push rod (13), and the push rod (13) is located on the rocking frame (7) It is arranged in the movable groove (72) and protruding from the rocking frame (7).
A children's tricycle with multi-mode operation according to claim 7, characterized in that: a guide rod (14) is arranged below between the insertion rod (12) and the push rod (13), and the guide rod (14) ) is installed in the guide groove (74) of the bottom cover (73) of the rocking frame (7), and the guide rod (14) can slide back and forth along the guide groove (74); the guide groove (74) is a waist-shaped groove .
A children's tricycle with multi-mode operation according to claim 8, characterized in that: the insertion rod (12), the push rod (13), and the guide rod (14) are connected by a baffle plate (15), The baffle plate (15) is embedded in the movable groove (72) of the rocking frame (7), and can slide back and forth along the movable groove (72).