Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a shoelace tensioning degree-adjustable shoelace-free shoe, which can automatically tension two ends of a shoelace through two shoelace tensioners, can adjust the tensioning degree of the shoelace, is convenient to wear and effectively solves the problem of falling caused by loosening of the shoelace.
The scheme for solving the technical problems is as follows:
a shoelace tightness-adjustable shoelace-free shoe comprises an upper and a shoelace, wherein both ends of the shoelace are respectively connected with a shoelace tensioner;
the shoelace tensioner comprises a base disc which is fixed on the upper and is hollow inside, a tension wheel is hinged in the base disc, the inner wall of the tension wheel is fixed with one end of a clockwork spring, the other end of the clockwork spring is fixed on the outer wall of an adjusting wheel, the adjusting wheel is hinged in the base disc, and the adjusting wheel is provided with an adjusting mechanism;
and a notch communicated with the inner cavity of the base plate is formed on the outer wall of the base plate, and one end of the shoelace penetrates through the extending end of the notch and is fixed on the tensioning wheel.
A plurality of first bulges which are uniformly distributed on the circumference are formed on the inner wall of the adjusting wheel;
the adjusting mechanism comprises a pressing knob, a connecting rod, a driving wheel and a ratchet wheel which are integrally formed from top to bottom, the driving wheel and the ratchet wheel are arranged in the base plate, a plurality of second bulges which are uniformly distributed on the circumference are formed on the driving wheel, and the second bulges are inserted between two corresponding adjacent first bulges;
one side of the ratchet wheel is connected with a pawl, one end of the pawl, which is far away from the pawl part, is hinged on the supporting shaft, a return spring is arranged between the pawl part of the pawl and the base plate, one side wall of the middle part of the pawl, which is close to the ratchet wheel, is pressed against the stop block, and the stop block and the supporting shaft are fixed on the base plate;
the ratchet wheel is provided with a trepanning hole with an opening at the lower side, the trepanning hole is inserted and sleeved on a sleeve, the sleeve is fixed in the base disc, a first pressure spring is sleeved in the sleeve, and the first pressure spring is clamped between the bottom surface of the base disc and the bottom surface of the trepanning hole.
The upper bottom surface of the driving wheel is provided with a plurality of hemispherical bulges, and the hemispherical bulges are pressed on the upper bottom surface of the base plate.
A belt groove is formed in the outer wall of the tensioning wheel, a shoelace tensioning seat is formed at the left upper end of the belt groove, and one end of the sole is fixed on the shoelace tensioning seat by bypassing the belt groove;
a step hole with a small outer part and a large inner part is formed in the shoelace tensioning seat, a lock pin with a small outer part and a large inner part and arranged in a step column shape is sleeved in the step hole, the outer end of the lock pin is pressed against the inner side wall of the base plate, and a second pressure spring is clamped between the other end of the lock pin and the bottom surface of the step hole;
and a pin hole matched with the small end of the lock pin is formed in the outer wall of the right lower end of the base plate.
The outer end of the lock pin is formed with a hemispherical top.
The lower bottom surface of the base plate is provided with a plurality of through holes in a forming mode, and the lower bottom surface of the base plate is fixed through a plurality of cotton threads between the through holes and the upper.
The invention has the following outstanding effects: compared with the prior art, it can carry out automatic tensioning to the both ends of shoelace through two shoelace tensioners, and can adjust the rate of tension of shoelace, and it not only conveniently dresses, has more effectively solved because of the shoelace pine takes off the problem that leads to tumbleing.
Detailed Description
Example, as shown in fig. 1 to 5, a shoelace-tightness-adjustable shoelace-free shoe comprises an upper 11 and a shoelace 12, wherein both ends of the shoelace 12 are connected with a shoelace tensioner 2;
the shoelace tensioner 2 comprises a base disc 21 which is fixed on the upper 11 and is hollow inside, a tension wheel 22 is hinged in the base disc 21, the inner wall of the tension wheel 22 is fixed with one end of a clockwork spring 23, the other end of the clockwork spring 23 is fixed on the outer wall of an adjusting wheel 24, the adjusting wheel 24 is hinged in the base disc 21, and the adjusting wheel 24 is provided with an adjusting mechanism 3;
a gap 211 communicated with the inner cavity of the base plate 21 is formed on the outer wall of the base plate 21, and one end of the shoelace 12 passes through the extending end of the gap 211 and is fixed on the tension wheel 22.
Furthermore, a plurality of first protrusions 241 which are uniformly distributed on the circumference are formed on the inner wall of the adjusting wheel 24;
the adjusting mechanism 3 comprises a pressing knob 31, a connecting rod 32, a driving wheel 33 and a ratchet wheel 34 which are integrally formed from top to bottom, the driving wheel 33 and the ratchet wheel 34 are arranged in the base disc 21, a plurality of second protrusions 331 which are uniformly distributed on the circumference are formed on the driving wheel 33, and the second protrusions 331 are inserted between two corresponding adjacent first protrusions 241;
one side of the ratchet wheel 34 is connected with a pawl 35, one end of the pawl 35, which is far away from the claw part, is hinged on a supporting shaft 36, a return spring 37 is arranged between the claw part of the pawl 35 and the base disc 21, one side wall of the middle part of the pawl 35, which is close to the ratchet wheel 34, is pressed against a stop block 38, and the stop block 38 and the supporting shaft 36 are fixed on the base disc 21;
a trepan 341 with an opening at the lower side is formed on the ratchet wheel 34, the trepan 341 is inserted and sleeved on a sleeve 39, the sleeve 39 is fixed in the base disc 21, a first pressure spring 30 is sleeved in the sleeve 39, and the first pressure spring 30 is clamped between the bottom surface of the base disc 21 and the bottom surface of the trepan 341.
Further, a plurality of hemispherical protrusions 332 are formed on the upper bottom surface of the driving wheel 33, and the hemispherical protrusions 332 are pressed against the upper bottom surface of the base plate 21.
Furthermore, a belt groove 221 is formed on the outer wall of the tensioning wheel 22, a lace tensioning seat 222 is formed at the left upper end of the belt groove 221, and one end of the sole 12 is fixed on the lace tensioning seat 222 by bypassing the belt groove 221;
a stepped hole 223 with a small outside and a large inside is formed in the shoelace tensioning seat 222, a lock pin 25 with a small outside and a large inside and arranged in a stepped column shape is sleeved in the stepped hole 223, the outer end of the lock pin 25 is pressed against the inner side wall of the base plate 21, and a second pressure spring 26 is clamped between the other end of the lock pin 25 and the bottom surface of the stepped hole 223;
the outer wall of the right lower end of the base plate 21 is formed with a pin hole 212 matched with the small end of the lock pin 25.
Further, the outer end of the locking pin 25 is formed with a hemispherical top 251.
More specifically, a plurality of through holes 213 are formed on the bottom surface of the base plate 21, and the bottom surface of the base plate 21 is fixed by a plurality of cotton threads between the through holes 213 and the upper 12.
The working principle is as follows: firstly, pulling the two ends of the shoelace 12 outwards, driving the tensioning wheel 22 to rotate anticlockwise by the shoelace 12, driving the lock pin 25 to rotate anticlockwise by the tensioning wheel 22, when the lock pin 25 rotates to the pin hole 212, automatically inserting the lock pin 25 into the pin hole 212 under the action of the second compression spring 26, stopping the rotation of the tensioning wheel 24 at the moment, loosening the two ends of the shoelace 12, and then penetrating feet into shoes; after the shoe is worn, the pin shaft 25 is pressed down to be separated from the pin hole 212, and the tension wheel 24 rotates clockwise under the action of the clockwork spring 23, so that the shoelace is tensioned;
when the tightness of the shoelace 12 needs to be increased, the pressing knob 31 is rotated, the pressing knob 31 drives the driving wheel 33 and the ratchet wheel 34 to rotate clockwise through the connecting rod 32, the driving wheel 33 drives the adjusting wheel 24 to rotate clockwise through the second protrusion 331 and the first protrusion 241, the adjusting wheel 24 drives the inner end of the clockwork spring 23 to rotate clockwise, the outer end of the clockwork spring 23 increases an acting force in a clockwise direction on the tensioning wheel 22, so that the tension of the shoelace is increased, the ratchet wheel can only rotate clockwise under the action of the pawl, and the pawl can prevent the ratchet wheel from rotating reversely, so that the clockwork spring is prevented from loosening;
when the tightness of the shoelace needs to be reduced, the pressing knob 31 is pressed downwards to rotate, the pressing knob 31 drives the driving wheel 33 and the ratchet wheel 34 to approach the upper through the connecting rod, the first bulge 331 on the driving wheel 33 is separated from the second bulge 241 on the adjusting wheel 24, and the adjusting wheel can rotate anticlockwise under the action of the clockwork spring at the moment, so that the shoelace is loosened; when the pressing knob 31 is released, the driving wheel 33 moves upwards and returns under the action of the first compression spring 30, and the first protrusions are inserted between the second protrusions again.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.