CN111846086A - A children's bicycle limited head bowl - Google Patents

Abstract

The invention discloses a limit head bowl for children's bicycles. A limiting upper plug is arranged between the upper bowl and the upper pressing; the limiting upper bowl is symmetrically provided with a clamping block which is adapted to the clamping groove on the upper end of the head tube, and the inner circumference of the limiting upper plug is symmetrically arranged with the front fork. The upper part of the groove is matched with the protrusion, the upper part of the upper limit bowl is symmetrically arranged with limit blocks, a rotation groove is formed between the limit blocks, the outer circumference of the limit upper bowl is symmetrically arranged with limit ears, and the limit ears are placed on the in the corresponding rotation slot. The advantages are: the structure is reasonable and compact, the faucet can be limited, the overturning of the body caused by the excessive turning angle of the faucet is avoided, and the riding safety is greatly improved.

Description

A children's bicycle limited head bowl

technical field

The invention relates to the technical field of bicycle manufacturing, in particular to a limited head bowl of a children's bicycle.

Background technique

Nowadays, children are more and more fond of bicycle riding, and the sales of children's bicycles are also increasing year by year. With the improvement of the economic level, the market demand for the safety and reliability of children's bicycles has become stronger and stronger. Due to the small age of children and their lack of control, children often encounter situations where the body overturns due to the excessive turning angle of the faucet and the unstable center of gravity of the body during the riding process. Therefore, the market has derived a strong demand for the controllable rotation angle of children's bicycle faucets.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a children's bicycle limited head bowl with a reasonable and compact structure, capable of realizing the position limit of the faucet and strong safety, aiming at the current state of the prior art.

The technical scheme adopted by the present invention to solve the above-mentioned technical problems is:

A limiter head bowl for children's bicycles, comprising an upper tensioner screwed to the upper end of a front fork, the front fork is inserted into the head tube, a limit upper bowl is arranged between the front fork and the head tube, and the limit upper bowl and the upper head are provided. A limit upper plug is arranged between the pressing; the limit upper bowl is symmetrically arranged with a clamping block which is adapted to the clamping groove on the upper end of the head tube, and the inner circumference of the limit upper plug is symmetrically protruded with a groove on the upper part of the front fork The upper part of the limiting upper bowl is symmetrically arranged with a limiting block, a rotating groove is formed between the limiting blocks, the outer circumference of the limiting upper bowl is symmetrically arranged with limiting lugs, and the limiting lugs are placed in the corresponding rotating grooves. Inside.

The optimized technical measures also include:

The above-mentioned upper limiter bowl is formed with a first inner slope, and the lower part of the upper limiter plug is formed with a lower slope that matches the first inner slope.

The above-mentioned upper pressing is internally formed with a second inner inclined surface, and the upper part of the upper limit stopper is formed with an upper inclined surface adapted to the second inner inclined surface.

The inclination angle of the above-mentioned lower slope is the same as that of the upper slope.

The lower part of the above-mentioned position-limiting upper bowl is provided with a vertical pipe, and the vertical pipe extends into the head pipe.

A stepped surface is arranged in the middle of the above-mentioned position-limiting upper bowl, and the stepped surface is in contact with the upper end surface of the head tube.

The above-mentioned upper pressing outer periphery is provided with a surrounding edge, a cavity is formed between the surrounding edge and the second inner inclined surface, and the limiting block is placed in the cavity.

The upper end of the above-mentioned upper pressing member extends inwardly to form a rib.

On the aforementioned front fork, the length of the groove is greater than the length of the thread segment.

A hexagonal wrench face is provided on the outer periphery of the above-mentioned upper pressing.

The invention is a limit head bowl for children's bicycles, which has a reasonable and compact structure, and includes a limit upper bowl, a limit upper plug, and an upper pressure. The pipes are assembled together, the upper limit plug is assembled with the front fork through the cooperation between the protrusion on the inner circumference and the groove on the upper part of the front fork, the upper part of the upper limit bowl is symmetrically arranged with limit blocks, and the limit blocks are formed between the limit blocks. Rotation groove, when the upper is tightened and the front fork is screwed and locked, to ensure that the front bowl does not move longitudinally, at this time, the limit ear is placed in the corresponding rotation groove, and the limit block limits the rotation angle of the limit upper plug , so as to avoid the overturning of the body caused by the excessive turning angle of the faucet, which greatly improves the safety of riding, and is suitable for strollers of 16 inches and below.

Description of drawings

Fig. 1 is the exploded structure schematic diagram of the present invention;

Fig. 2 is the sectional structure schematic diagram of the present invention;

Fig. 3 is the sectional structure schematic diagram of another angle of the present invention;

Fig. 4 is the three-dimensional structure view of the limiting upper bowl in Fig. 1;

Fig. 5 is the three-dimensional structure diagram of another perspective of the upper limit bowl in Fig. 1;

Fig. 6 is the three-dimensional structure view of the upper limit stopper in Fig. 1;

FIG. 7 is a three-dimensional structural view of the position-limiting upper plug in FIG. 1 from another perspective.

Fig. 8 is a three-dimensional structural view of the upper force in Fig. 1;

FIG. 9 is a three-dimensional structural view of the upper part of FIG. 1 from another viewing angle.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

1 to 9 are schematic structural diagrams of the present invention,

The reference signs are: front fork 1, groove 11, upper tightening 2, second inner slope 2a, hexagonal wrench surface 2b, surrounding edge 21, retaining edge 22, head tube 3, card slot 31, upper limit Bowl 4, first inner inclined surface 4a, stepped surface 4b, clamping block 41, limit block 42, rotation groove 42a, vertical pipe 43, limit stopper 5, lower slope 5a, upper slope 5b, protrusion 51, limit Ear 52.

As shown in Figure 1 to Figure 9,

A limited head bowl for children's bicycles, comprising an upper pressing 2 that is screwed with an upper end of a front fork 1, the front fork 1 is inserted into the head tube 3, and a limit upper bowl is arranged between the front fork 1 and the head tube 3 4. A limit stopper 5 is arranged between the limit upper bowl 4 and the upper press 2; the limit upper bowl 4 is symmetrically provided with a clamping block 41 which is adapted to the clamping slot 31 at the upper end of the head tube 3. The inner circumference of the plug 5 is symmetrically provided with a protrusion 51 that fits with the groove 11 on the upper part of the front fork 1, and the upper part of the limiting upper bowl 4 is symmetrically provided with a limiting block 42, and a rotation groove is formed between the limiting blocks 42. 42a, limiting ears 52 are symmetrically arranged on the outer periphery of the upper limiting bowl 4, and the limiting ears 52 are placed in the corresponding rotating grooves 42a.

In the embodiment, the upper limiting bowl 4 is formed with a first inner inclined surface 4a, and the lower portion of the upper limiting plug 5 is formed with a lower inclined surface 5a adapted to the first inner inclined surface 4a.

In the embodiment, the upper pressing 2 is formed with a second inner inclined surface 2a, and the upper part of the upper limit stopper 5 is formed with an upper inclined surface 5b that matches the second inner inclined surface 2a.

In the embodiment, the inclination angles of the lower inclined surface 5a and the upper inclined surface 5b are the same.

In the embodiment, a vertical pipe 43 is provided at the lower part of the upper limiting bowl 4 , and the vertical pipe 43 extends into the head tube 3 .

In the embodiment, a stepped surface 4b is provided in the middle of the upper limiting bowl 4 , and the stepped surface 4b is in contact with the upper end surface of the head tube 3 .

In the embodiment, the outer periphery of the upper pressing 2 is provided with a surrounding edge 21, a cavity is formed between the surrounding edge 21 and the second inner slope 2a, and the limiting block 42 is placed in the cavity. The surrounding edge 21 covers the limiting block 42 and the limiting ears 52, which can avoid the erosion of rainwater and dust.

In the embodiment, the upper end of the upper pressing 2 extends inwardly to form a baffle 22 .

In the embodiment, on the front fork 1, the length of the groove 11 is greater than the length of the thread segment.

In the embodiment, the outer periphery of the upper pressing 2 is provided with a hexagonal wrench face 2b. The hexagonal wrench face 2b is provided to facilitate the use of the tool and the locking of the upper pressing 2 .

During assembly, the front fork 1 is inserted into the head tube 3, the upper limit bowl 4 is placed above the head tube 3, and the clamping block 41 of the upper limit bowl 4 is inserted into the corresponding slot 31 of the head tube 3, so that the upper limit The bowl 4 and the head tube 3 can rotate together; the upper limit plug 5 is placed above the upper limit bowl 4, and the limit ears 52 on the outer periphery of the upper limit plug 5 are placed in the corresponding rotating groove 42a of the upper limit bowl 4, and at the same time , the protrusion 51 on the inner circumference of the upper limit stopper 5 is snapped into the corresponding groove 11 of the front fork 1, so that the upper limit stopper 5 and the front fork 1 can rotate together; The upper part of 1 is made with external threads, the upper tightening 2 is screwed in from top to bottom, and the upper tightening 2 is threadedly connected with the front fork 1. After locking, it is ensured that the headset does not move longitudinally. After the upper tightening 2 is locked, the step surface 4b on the limiting upper bowl 4 is in contact with the upper end surface of the head tube 3, and the limiting block 42 on the limiting upper bowl 4, the rotation groove 42a and the limiting upper stopper 5 are limited. The ear 52 is placed in the cavity inside the surrounding edge 21 of the upper pressing 2, and the surrounding edge 21 covers the internal structure from top to bottom, which can effectively prevent dust and rain, and improve the service life.

The upper limiter bowl 4 is formed with a first inner inclined surface 4a, and the lower part of the upper limiter plug 5 is formed with a lower inclined surface 5a that matches the first inner sloped surface 4a; the upper pressing 2 is formed with a second inner sloped surface 2a, the upper part of the upper limit stopper 5 is provided with an upper inclined surface 5b that matches the second inner inclined surface 2a; the lower inclined surface 5a and the upper inclined surface 5b have the same inclination angle. The upper limit stopper 5, the upper limiter 2 and the upper limiter bowl 4 are all inclined surfaces, and the purpose of self-alignment can be achieved through the cooperation of the inclined surfaces, which avoids the radial movement of the upper limit stopper 5, and makes the front bowl more stable. Stable and reliable.

Limiting blocks 42 are symmetrically arranged on the upper part of the limiting upper bowl 4, and a rotating groove 42a is formed between the limiting blocks 42. After the upper pressing 2 is locked, the limiting ears 52 of the limiting upper plug 5 are placed in the rotating grooves 42a. , due to the setting of the limit block 42, the rotation angle of the upper limit stopper 5 is limited, that is, the rotation angle of the front fork 1 is limited, thereby limiting the bicycle faucet within the set rotation angle and avoiding the excessive turning angle of the faucet. And cause the body to overturn, greatly improving the safety of riding.

The preferred embodiment of the present invention has been described, and various changes or modifications can be made by those skilled in the art without departing from the scope of the present invention.

Claims (10)

1. A children's bicycle limited head bowl, comprising an upper fork (2) that is screwed with the upper end of the front fork (1), the front fork (1) is placed in the head tube (3), and the The feature is: a limit upper bowl (4) is arranged between the front fork (1) and the head tube (3), and a limit upper bowl (4) is arranged between the limit upper bowl (4) and the upper press (2). an upper stopper (5); the upper limiter bowl (4) is symmetrically provided with a clamping block (41) adapted to the clamping groove (31) at the upper end of the head tube (3), and the upper limiter stopper (4) The inner circumference of (5) is symmetrically provided with a protrusion (51) that fits with the groove (11) on the upper part of the front fork (1), and the upper part of the limit upper bowl (4) is symmetrically provided with a limit block (42), a rotation groove (42a) is formed between the limit blocks (42), and limit ears (52) are symmetrically arranged on the outer circumference of the limit upper plug (5), and the limit ears (52) It is placed in the corresponding rotating groove (42a). 2. A child bicycle limit head bowl according to claim 1, characterized in that: the limit upper bowl (4) is formed with a first inner slope (4a), and the limit upper plug is The lower part of (5) is provided with a lower slope (5a) which is adapted to the first inner slope (4a). 3. The head bowl for children's bicycle limit according to claim 2, characterized in that: the upper pressing (2) is formed with a second inner slope (2a), and the limit upper plug ( 5) An upper slope (5b) matching the second inner slope (2a) is formed on the upper part. 4 . The head bowl for limiting the position of children's bicycle according to claim 3 , wherein the lower slope ( 5 a ) and the upper slope ( 5 b ) have the same inclination angle. 5 . 5. A child's bicycle limit head bowl according to claim 4, characterized in that: the lower part of the limit upper bowl (4) is provided with a vertical pipe (43), and the vertical pipe (43) extends into inside the head tube (3). 6. A child bicycle limit head bowl according to claim 5, characterized in that: the middle of the limit upper bowl (4) is provided with a stepped surface (4b), the stepped surface (4b) and the The upper end faces of the head tube (3) are in contact with each other. 7. The head bowl for children's bicycle limit according to claim 6, characterized in that: the outer periphery of the upper pressing force (2) is provided with a surrounding edge (21), and the surrounding edge (21) and A cavity is formed between the second inner inclined surfaces (2a), and the limiting block (42) is placed in the cavity. 8 . The head bowl for children's bicycle limit according to claim 7 , wherein the upper end of the upper pressing ( 2 ) extends inward to form a rib ( 22 ). 9 . 9 . The head bowl of a children's bicycle limited according to claim 8 , wherein the length of the groove ( 11 ) on the front fork ( 1 ) is greater than the length of the threaded section. 10 . 10. A kind of children's bicycle limiting head bowl according to claim 9, characterized in that: the outer periphery of the upper pressing (2) is provided with a hexagonal wrench face (2b).

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