Child tricycle

Abstract

A child tricycle comprises a tricycle frame, a handle rod rotationally connected in a steering cylinder of the tricycle frame in a sleeved mode, a front wheel fork connected with the lower end of the handle rod, a front wheel installed in the front wheel fork, two rear wheels and a push rod installation portion arranged in the middle of the tail of the tricycle frame, and pedals are arranged on the two sides of the front wheel. The front fork is in swing connection with the lower end of the handlebar; a front wheel adjusting structure used for controlling the front wheel fork to swing and bend inwards is arranged between the front wheel fork and the handle rod. Therefore, the front wheel shaft which is located on the same plane with the axis of the handle rod for controlling the front wheel to steer can slightly swing inwards by an angle, so that the front wheel shaft and the handle rod are not located on the same plane, at the moment, the front wheel is equivalent to a universal wheel, and in the state, riding of a child is not affected; as long as the pushing force is slightly leftward or rightward, the front wheel can automatically steer leftwards or rightwards, so that the steering is flexible and the operation is simple in the conversion process when the bicycle is converted into a cart for use.

Description

Technical Field

[0001] The utility model relates to a tricycle for children to play, in particular to a tricycle for children with a front wheel having pedals. Background Art

[0002] There are many kinds of tricycles with seats for children to play (one front wheel and two rear wheels), and there are two main methods of use: one is to sit on the seat and slide on the ground with pedals, and the other is to sit on the seat and step on the pedals linked to the front wheels to ride. The second tricycle, when equipped with a detachable push rod, has the function of pushing and sliding, which is convenient for adults to push the car behind to walk a long distance, such as the three-wheeled children's car with a new steering mechanism with announcement number CN 202806976 U, and a foldable push-and-ride dual-purpose children's tricycle with announcement number CN202923696U.

[0003] The current children's tricycle with pedals connected to the front axle has the axis of the front axle and the axis of the handlebar for controlling the steering of the front wheel located on the same plane. Therefore, when a push rod is installed to push the tricycle, it is difficult for the pusher to control the steering of the tricycle. Therefore, the children's tricycle with pedals connected to the front axle is very inconvenient to use as a push cart.

[0004] For this reason, the applicant has improved the current children's tricycle with pedals connected to the front axle. Summary of the invention

[0005] The utility model aims to overcome the shortcomings of the prior art and provides a children's tricycle which can be flexibly turned when converted into a stroller and is easy to operate during conversion.

[0006] In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

[0007] A children's tricycle comprises a frame with a seat, a handlebar with a handle rotatably sleeved in a steering cylinder of the frame, a front wheel fork connected to the lower end of the handlebar, a front wheel mounted in the front wheel fork, and two rear wheels mounted on both sides of the rear of the frame, and a push rod mounting portion located at the middle position of the rear of the frame for disassembling and mounting a push rod, pedals are provided on both sides of the front wheel; the front wheel fork is swingably connected to the lower end of the handlebar; a front wheel adjustment structure for controlling the front wheel fork to swing inward and bend is provided between the front wheel fork and the handlebar.

[0008] In the improved scheme for the above-mentioned children's tricycle, the front wheel fork is divided into two half-wheel forks, which are clamped on both sides of the handlebar and fixed together at the joint through a sleeve and a sleeve hole; the front wheel adjustment structure includes a locking tooth, a locking reset spring and an unlocking key, and tooth groove holes for the locking tooth to slide axially are respectively provided on the handlebar and one of the half-wheel forks; the locking tooth slides and resets under the locking reset spring and then slides into the tooth groove holes of the handlebar and the corresponding half-wheel fork at the same time; when the unlocking key is pressed, the locking tooth slides away from the tooth groove hole of the half-wheel fork and then completely slides into the tooth groove hole of the handlebar.

[0009] In an improved solution to the above-mentioned children's tricycle, the bottom of the handlebar and the front wheel fork are provided with an arc-shaped notch and a stop to control the inward swing angle of the front wheel fork.

[0010] In an improvement to the above-mentioned children's tricycle, the swing angle of the front wheel fork is between 5 and 30 degrees.

[0011] In an improved solution to the above-mentioned children's tricycle, a pedal control structure is provided inside the front wheel for controlling the pedal and the front wheel to achieve synchronous rotation and release synchronous rotation; the pedal control structure includes a latch mounting seat, a latch and a latch return spring provided in the latch mounting seat, and a control key exposed to the front wheel; the control key drives the latch to slide toward or away from the front wheel axle of the front wheel through the latch mounting seat.

[0012] In the improvement scheme of the above-mentioned children's tricycle, the pedal control structure also includes a sliding hook seat; an elastic sliding hook is provided on the latch mounting seat; and the elastic sliding hook is arranged in the wave of the sliding hook seat.

[0013] In the improved solution of the above children's tricycle, the front wheel axle includes a front wheel axle body and a front wheel axle sleeve which are tightly fitted and sleeved together, and the front wheel axle sleeve is provided with a pin hole for the pin to be inserted into.

[0014] Compared with the prior art, the utility model has the following beneficial effects: since a front wheel adjustment structure for controlling the front wheel fork to swing inwards and turn at an angle is provided between the front wheel fork and the handlebar, the front wheel axis which is in the same plane as the axis of the handlebar for controlling the steering of the front wheel can be slightly swung inwards at an angle so that they are not in the same plane. At this time, the front wheel is equivalent to a universal wheel. In this state, not only will it not affect the riding of children (that is, it can continue to be used for riding), but also when a push rod is installed on the push rod mounting portion to use it as a stroller, as long as the thrust is slightly applied to the left or right, the front wheel will automatically turn left or right. Therefore, the utility model has flexible steering when converted into a stroller and is simple to operate during conversion.

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the embodiment of the utility model when used for riding Figure 1 (When the handlebar and the axis of the front wheel axle are in the same plane);

[0017] Figure 2 yes Figure 1 A front view of

[0018] Figure 3 This is a three-dimensional diagram of the embodiment of the utility model when used for riding Figure 2 (When the handlebar and the front wheel axle are not in the same plane);

[0019] Figure 4 yes Figure 3 A front view of

[0020] Figure 5 This is a three-dimensional schematic diagram of an embodiment of the utility model when used as a cart;

[0021] Figure 6 It is a schematic diagram of the assembly of some components of the embodiment of the utility model Figure 1 ;

[0022] Figure 7 It is a schematic diagram of the assembly of some components of the embodiment of the utility model Figure 2 ;

[0023] Figure 8 yes Figure 7 An enlarged view of a local part I;

[0024] FIG. 9 is a schematic diagram of the assembly between the handlebar and the front wheel fork according to an embodiment of the utility model. DETAILED DESCRIPTION

[0025] The utility model is a children's tricycle. Figures 1 to 9As shown, it comprises a frame 1 with a seat 10, a handlebar 2 with a handle 20 rotatably sleeved in a steering cylinder 11 of the frame 1, an inverted U-shaped front wheel fork 3 connected to the lower end of the handlebar 2, a front wheel 4 installed in the front wheel fork 3, and two rear wheels 5 installed on both sides of the rear of the frame 1, and a push rod mounting portion 12 provided at the middle position of the rear of the frame 1 for disassembling and assembling a push rod 6, and pedals 8 are provided on both sides of the front wheel. These structures are basically consistent with the overall structure of the children's tricycle commonly seen at present, in which pedals are connected to the front wheel axle, except that the front wheel fork 3 is swingably connected to the lower end of the handlebar 2; a push rod mounting portion 12 is provided between the front wheel fork 3 and the handlebar 2. There is a front wheel adjustment structure 7 for controlling the front wheel fork 3 to swing inward and bend, so that the axis of the front wheel 4 in the same plane as the axis of the handlebar 2 can be slightly swung inward by an angle so that they (the two axes) are not in the same plane. At this time, the front wheel 4 is equivalent to a universal wheel. In this state, not only will it not affect the riding of children (that is, after the handlebar is turned inward and bent at an angle, the tricycle can continue to be used for riding), but also when the push rod 6 is installed on the push rod mounting portion 12 to be used as a cart, as long as the thrust is slightly applied to the left or right, the front wheel 4 will automatically turn left or right. Therefore, the steering is flexible when converted into a cart and the operation is simple during conversion.

[0026] In this embodiment, the front wheel fork 3 is divided into two half-wheel forks 31, which are clamped on both sides of the handlebar 2 and fixed together at the joint through a sleeve 32 and a sleeve hole 33; the front wheel adjustment structure 7 includes a locking tooth 71, a locking return spring 72 and an unlocking key 73, and tooth groove holes 21 and 311 for the locking tooth 71 to slide axially are respectively provided on the handlebar 2 and one of the half-wheel forks 31; after the locking tooth 71 slides and resets under the locking return spring 72, it is simultaneously located in the tooth groove holes 21 and 311 of the handlebar 2 and the corresponding half-wheel fork 31, and at this time, the front wheel fork cannot swing, such as Figure 1 , 2 When the unlocking button 73 is pressed, the locking tooth 71 slides away from the tooth slot hole 311 of the half wheel fork 31 and completely slides into the tooth slot hole 21 of the handlebar 2. At this time, the front wheel fork 3 can be rotated to swing the front wheel 4 inward by an angle. In this state, the vehicle can be ridden. Figure 3 , 4 As shown, the push rod 6 can be installed to promote the sliding, such as Figure 5 As shown; preferably, at the bottom of the handlebar 2 and the front wheel fork 3, the arc-shaped notch 22 and the stop 34 are used to control the inward swing angle of the front wheel fork 3, and the swing angle is generally preferably 5 to 30 degrees.

[0027] In the present embodiment, a pedal control structure 9 is provided in the front wheel 4 for controlling the pedal 8 to realize synchronous rotation and release synchronous rotation with the front wheel 4; the pedal control structure 9 includes a latch mounting seat 91, a latch 92 and a latch return spring 93 arranged in the latch mounting seat 91, and a control key 94 exposed from the front wheel 4; the control key 94 drives the latch 92 to slide toward or away from the front wheel axle 41 of the front wheel 4 through the latch mounting seat 91; when the child wants to ride, the control key 94 is operated to slide the latch mounting seat 91 toward the front wheel axle 41, and the latch 92 is radially inserted into the front wheel axle 41 under the action of the latch return spring 93, so that the child can ride by stepping on the pedal; and when pushing, the pedal is preferably in an idling state. At this time, the control key 94 is operated to make the latch mounting seat 91 slide away from the front wheel axle 41, thereby driving the latch to leave the front wheel axle for sliding. Preferably, in order to prevent the latch from automatically retracting and causing the pedal to spin and become unable to continue riding, in this embodiment, the pedal control structure 9 further includes a sliding hook seat 95; an elastic sliding hook 911 is provided on the latch mounting seat 91; the elastic sliding hook 911 is provided in the wave groove 951 of the sliding hook seat 95, so that the control key must be manually operated to drive the control key to retract through the latch mounting seat, thereby preventing the latch mounting seat 91 and the latch thereon from automatically retracting during riding. Of course, other structures can also be used to prevent the latch mounting seat 91 from automatically retracting.

[0028] In this embodiment, the front wheel axle 41 includes a front wheel axle body 411 and a front wheel axle sleeve 412 which are tightly fitted and sleeved together. The front wheel axle sleeve 412 is provided with a pin hole 4121 into which the pin 92 can be inserted. Figure 7 , 8 shown.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the conventional installation orientation of the product, or the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A children's tricycle, comprising a frame with a seat, a handlebar with a handle rotatably sleeved in a steering cylinder of the frame, a front wheel fork connected to the lower end of the handlebar, a front wheel mounted in the front wheel fork, and two rear wheels mounted on both sides of the rear of the frame, and a push rod mounting portion provided at the middle position of the rear of the frame for disassembling and mounting a push rod, pedals being provided on both sides of the front wheel, characterized in that: The front wheel fork is swingably connected to the lower end of the handlebar; a front wheel adjustment structure for controlling the front wheel fork to swing and bend inwards is provided between the front wheel fork and the handlebar.

2. The children's tricycle according to claim 1, characterized in that: The front wheel fork is divided into two half-wheel forks, which are clamped on both sides of the handlebar and fixed together at the joint through a sleeve and a sleeve hole; the front wheel adjustment structure includes a locking tooth, a locking reset spring and an unlocking key, and tooth groove holes for the locking tooth to slide axially are respectively provided on the handlebar and one of the half-wheel forks; the locking tooth slides and resets under the locking reset spring and then slides into the tooth groove holes of the handlebar and the corresponding half-wheel fork at the same time; when the unlocking key is pressed, the locking tooth slides away from the tooth groove hole of the half-wheel fork and then completely slides into the tooth groove hole of the handlebar.

3. The children's tricycle according to claim 2, characterized in that: The bottom of the handlebar and the front wheel fork are connected by an arc-shaped notch and a stop platform to control the inward swing angle of the front wheel fork.

4. The children's tricycle according to claim 2, characterized in that: The swing angle of the front wheel fork is between 5 and 30 degrees.

5. The children's tricycle according to any one of claims 1 to 4, characterized in that: A pedal control structure for controlling the pedal and the front wheel to achieve synchronous rotation and release synchronous rotation is provided in the front wheel; the pedal control structure includes a latch mounting seat, a latch and a latch return spring provided in the latch mounting seat, and a control key exposed to the front wheel; the control key drives the latch to slide toward or away from the front wheel axle of the front wheel through the latch mounting seat.

6. The children's tricycle according to claim 5, characterized in that: The pedal control structure also includes a sliding hook seat; an elastic sliding hook is arranged on the latch mounting seat; and the elastic sliding hook is arranged in the wave of the sliding hook seat.

7. The children's tricycle according to claim 5, characterized in that: The front wheel axle comprises a front wheel axle main body and a front wheel axle sleeve which are tightly fitted and sleeved together, and a latch hole is provided on the front wheel axle sleeve for the latch pin to be inserted into.

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