CN211032871U - Anti-falling bicycle for children - Google Patents

Abstract

The utility model relates to a children's bicycle technical field just discloses a prevent falling children's bicycle, including frame, front wheel, rear wheel, first pivot and second pivot, front wheel and rear wheel cup joint with the pole wall of first pivot and second pivot is fixed respectively, the both ends pole wall of first pivot and second pivot is the first bracing piece of fixedly connected with and second bracing piece respectively, the lower extreme of first bracing piece and second bracing piece rotates respectively and is connected with universal wheel and gyro wheel, the inside of frame is equipped with the slide bar, the fixed seat that is equipped with in upper end of slide bar, first cavity has been seted up to the inside of seat, be equipped with the lead screw in the cavity, the both ends of lead screw are passed through antifriction bearing and are rotated and set up in the inside of seat, threaded connection has the slider on the lead screw. The utility model discloses can guarantee that the direction of seat can not take place the skew when adjusting the seat height, also can utilize universal wheel and gyro wheel to guarantee the stability of automobile body simultaneously, avoid children to fall down when using.

Description

Anti-falling bicycle for children

Technical Field

The utility model relates to a children's bicycle technical field especially relates to a prevent falling children's bicycle.

Background

With the continuous optimization of living standard of people, the consumption ability of people is also continuously improved, the safety of children is concerned by every family, so that some articles related to children pay attention to the safety protection of children, for example, the utilization rate of the current children bicycle is high, so the current children bicycle is continuously improved.

Traditional children's bicycle is when adjusting the height of seat, often makes the horizontal position of seat take place the skew, and the problem that leads to like this can influence children's use, simultaneously because the steadiness of automobile body is relatively poor, can cause the condition that takes place to tumble when using the bicycle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and can cause the seat to rotate in the horizontal direction when adjusting the seat among the prior art, in case when taking place to rotate, can influence the problem that children used and the anti-falling children bicycle that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A fall-resistant children bicycle comprises a frame, a front wheel, a rear wheel, a first rotating shaft and a second rotating shaft, wherein the front wheel and the rear wheel are fixedly sleeved with the rod walls of the first rotating shaft and the second rotating shaft respectively, the rod walls at two ends of the first rotating shaft and the second rotating shaft are fixedly connected with a first supporting rod and a second supporting rod respectively, the lower ends of the first supporting rod and the second supporting rod are rotatably connected with universal wheels and idler wheels respectively, a sliding rod is arranged in the frame, a seat is fixedly arranged at the upper end of the sliding rod, a first cavity is formed in the seat, a lead screw is arranged in the cavity, two ends of the lead screw are rotatably arranged in the seat through a rolling bearing, a sliding block is connected to the lead screw in a threaded manner, the left end of the lead screw penetrates through the left side wall of the seat, extends outwards and is fixedly connected with a turntable, a plurality of limiting holes are uniformly formed in the left, the upper end of the first cavity is provided with a strip-shaped opening, the sliding block is connected with the strip-shaped opening in a sliding manner, and the upper end of the sliding block is fixedly connected with a backup plate;

The utility model discloses a chair, including seat, second cavity, pull rod, first stopper of right-hand member fixed connection of pull rod, the spring has been cup jointed in the activity on the pole wall of pull rod, the both ends of spring respectively with the left side wall of first cavity and the left side wall fixed connection of first stopper, the left end of pull rod runs through the left side wall of second cavity and outwards extends and rotate with the seat and be connected, the left end pole wall downside fixedly connected with gag lever post of pull rod, gag lever post and spacing hole phase-match.

Preferably, the inner wall symmetry of frame has seted up the spacing groove, symmetry fixedly connected with second stopper on the pole wall of slide bar, second stopper and spacing groove phase-match, the outer wall of frame is fixed and is equipped with quick detach locking buckle.

Preferably, the lower end of the frame is rotatably connected with a connecting rod, the lower end of the connecting rod is rotatably connected with a pedal, and an anti-skid bulge is fixedly arranged on the pedal.

preferably, the limiting rod is L-shaped.

Preferably, the outer surface of the backup plate is fixedly provided with a sponge.

Compared with the prior art, the utility model provides a prevent falling children bicycle possesses following beneficial effect:

1. This prevent falling children's bicycle through the fixed second stopper that sets up on the slide bar lateral wall of symmetry and the cooperation of spacing groove, can be when adjusting the height of seat, has avoided the condition that the direction of seat changes.

2. This prevent falling children's bicycle through setting up in the carousel of lead screw left end, can be when the position of backup plate is adjusted to needs, makes the lead screw drive slider and backup plate motion through rotating the carousel, need not dismantle it.

3. This prevent falling children's bicycle through set up in universal wheel and the second bracing piece lower extreme of first bracing piece lower extreme and to the gyro wheel, can play the supporting role to the bicycle simultaneously to the universal wheel can rotate along with the rotation of front wheel, avoids appearing the unable condition that turns to of front wheel.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can guarantee that the direction of seat can not take place the skew when adjusting the seat height, also can utilize universal wheel and gyro wheel to guarantee the stability of automobile body simultaneously, avoid children to fall down when using.

Drawings

Fig. 1 is a schematic structural view of a crash-proof children bicycle provided by the present invention;

FIG. 2 is a cross-sectional view of the interior of the seat of FIG. 1;

Figure 3 is an interior cross-sectional view of the vehicle frame of figure 1.

In the figure: the bicycle comprises a frame 1, a front wheel 2, a rear wheel 3, a first rotating shaft 4, a second rotating shaft 5, a first supporting rod 6, a second supporting rod 7, a universal wheel 8, a roller 9, a sliding rod 10, a seat 11, a screw rod 12, a sliding block 13, a rotating disc 14, a backup plate 15, a pull rod 16, a first limiting block 17, a spring 18, a limiting rod 19, a second limiting block 20, a quick-release locking buckle 21, a connecting rod 22 and a pedal 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a crash-proof children bicycle comprises a frame 1, a front wheel 2, a rear wheel 3, a first rotating shaft 4 and a second rotating shaft 5, wherein the lower end of the frame 1 is rotatably connected with a connecting rod 22, the lower end of the connecting rod 22 is rotatably connected with a pedal 23, the pedal 23 is fixedly provided with an anti-skid bulge, the front wheel 2 and the rear wheel 3 are respectively fixedly sleeved with the rod walls of the first rotating shaft 4 and the second rotating shaft 5, the rod walls at the two ends of the first rotating shaft 4 and the second rotating shaft 5 are respectively fixedly connected with a first supporting rod 6 and a second supporting rod 7, the lower ends of the first supporting rod 6 and the second supporting rod 7 are respectively rotatably connected with a universal wheel 8 and a roller 9, the frame 1 is internally provided with a sliding rod 10, the upper end of the sliding rod 10 is fixedly provided with a seat 11, the seat 11 is internally provided with a first cavity, a screw rod 12 is arranged in the cavity, a slide block 13 is connected to the screw rod 12 in a threaded manner, the left end of the screw rod 12 penetrates through the left side wall of the seat 11, extends outwards and is fixedly connected with a rotary table 14, a plurality of limiting holes are uniformly formed in the left side wall of the rotary table 14 in a surrounding manner, a strip-shaped opening is formed in the upper end of the first cavity, the slide block 13 is connected with the strip-shaped opening in a sliding manner, a backup plate 15 is fixedly connected to the upper end of the slide block 13, and sponge is fixedly arranged on the outer surface of the backup plate 15, so that;

the second cavity has been seted up on the inside left side of seat 11, be equipped with pull rod 16 in the second cavity, the first stopper 17 of right-hand member fixed connection of pull rod 16, spring 18 has been cup jointed in the activity on pull rod 16's the pole wall, spring 18's both ends respectively with the left side wall of first cavity and the left side wall fixed connection of first stopper 17, pull rod 16's left end runs through the left side wall of second cavity and outwards extends and rotate with seat 11 and be connected, pull rod 16's left end pole wall downside fixedly connected with gag lever post 19, gag lever post 19 is L shape, gag lever post 19 and spacing hole phase-match, can carry on spacingly to carousel 14, avoid causing carousel 14 to rotate owing to rocking in the use, thereby make backup plate 15's position change.

The spacing groove has been seted up to the inner wall symmetry of frame 1, symmetry fixedly connected with second stopper 20 on the pole wall of slide bar 10, second stopper 20 and spacing groove phase-match, and the outer wall of frame 1 is fixed and is equipped with quick detach locking and detains 21, and this quick detach locking detains 21 and is prior art, so here is not being given more attention to too much, when the height of seat 11 is adjusted to needs, can open quick detach locking and detain 21 and adjust the height of seat 11.

In the utility model, when in use, if the seat 11 needs to be adjusted, the pull rod 16 is pulled, the limit rod 19 is pulled out from the limit hole through the pull rod 16 and the pull rod 16 is rotated, so that the limit rod 19 is transferred to the upper part, the rotary table 14 is rotated, the lead screw 12 is utilized to drive the slider 13 to transversely move on the lead screw 12, the backup plate 15 is driven to transversely move when the slider 13 moves, the seat 11 is adjusted, after the seat 11 is adjusted, the pull rod 16 is pulled and rotated to drive the limit rod 19 to downwards rotate, when the limit rod 19 is rotated to the lower part, the pull rod 16 is loosened, the limit rod 19 is inserted into the limit hole by utilizing the elasticity of the spring 18, when the height of the seat 11 needs to be adjusted, the quick-release locking buckle 21 is opened, the seat 11 is upwards lifted or downwards pressed, the sliding connection of the second limit block 20 and the limit groove is utilized, the direction of the seat 11 can not be changed in the process of adjusting the seat 11, in the process of riding, set up in the gyro wheel 9 and the universal wheel 8 of bicycle both sides, can play fine supporting role to the automobile body, avoid rocking the condition that leads to tumbling because of the focus unstability appears the bicycle, simultaneously, rotate and set up in the universal wheel 8 of first bracing piece 6 lower extreme when front wheel 2 turns to, can follow turning to of front wheel 2 and turn to, the unable pivoted condition of front wheel 2 can not appear.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A fall-resistant children bicycle comprises a frame (1), a front wheel (2), a rear wheel (3), a first rotating shaft (4) and a second rotating shaft (5), and is characterized in that the front wheel (2) and the rear wheel (3) are fixedly sleeved with the rod walls of the first rotating shaft (4) and the second rotating shaft (5) respectively, the rod walls at two ends of the first rotating shaft (4) and the second rotating shaft (5) are fixedly connected with a first supporting rod (6) and a second supporting rod (7) respectively, the lower ends of the first supporting rod (6) and the second supporting rod (7) are rotatably connected with universal wheels (8) and rollers (9) respectively, a sliding rod (10) is arranged inside the frame (1), a seat (11) is fixedly arranged at the upper end of the sliding rod (10), a first cavity is formed inside the seat (11), a lead screw (12) is arranged in the cavity, two ends of the lead screw (12) are arranged inside the seat (11) through rotation, a sliding block (13) is connected to the screw rod (12) in a threaded manner, the left end of the screw rod (12) penetrates through the left side wall of the seat (11), extends outwards and is fixedly connected with a rotary table (14), a plurality of limiting holes are uniformly formed in the left side wall of the rotary table (14) in a surrounding manner, a strip-shaped opening is formed in the upper end of the first cavity, the sliding block (13) is connected with the strip-shaped opening in a sliding manner, and a backup plate (15) is fixedly connected to the upper end of the sliding block (13);

The second cavity has been seted up on the inside left side of seat (11), be equipped with pull rod (16) in the second cavity, the first stopper of right-hand member fixed connection (17) of pull rod (16), spring (18) have been cup jointed in the activity on the pole wall of pull rod (16), the both ends of spring (18) respectively with the left side wall of first cavity and the left side wall fixed connection of first stopper (17), the left end of pull rod (16) runs through the left side wall of second cavity and outwards extends and rotates with seat (11) and is connected, the left end pole wall downside fixed connection of pull rod (16) has gag lever post (19), gag lever post (19) and spacing hole phase-match.

2. The crash-proof children bicycle according to claim 1, wherein the inner wall of the frame (1) is symmetrically provided with a limiting groove, the wall of the sliding rod (10) is symmetrically and fixedly connected with a second limiting block (20), the second limiting block (20) is matched with the limiting groove, and the outer wall of the frame (1) is fixedly provided with a quick-release locking buckle (21).

3. The crash-proof children bicycle according to claim 1, wherein the lower end of the frame (1) is rotatably connected with a connecting rod (22), the lower end of the connecting rod (22) is rotatably connected with a pedal (23), and the pedal (23) is fixedly provided with an anti-skid protrusion.

4. crash-proof children's bicycle according to claim 1, characterized in that said limit stop (19) is L-shaped.

5. Crash-proof children's bicycle according to claim 1, characterized in that the outer surface of said backrest plate (15) is fixed with sponge.

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