A knob device

Abstract

The present invention provides a knob device, which includes a knob, a wheel bin, a wire wheel, a base and a shoelace. The base is sewn on the side of the shoe upper or on the tongue of the shoe. There are buckle positions arranged on the inner circumference of the knob, and multiple square holes are arranged on the circumference of the wheel bin. There are multiple rope-passing holes I at the lower part of the outer circumference of the wheel bin. There is a wire groove in the middle of the wire wheel, and multiple rope-passing holes are arranged on the wire wheel. There is a counterbore structure at the center of the bottom of the wire wheel. The invention further includes a gear ring, and there are locking teeth arranged on the gear ring to block the rotation of the gear ring. A blocking mechanism corresponding to the locking teeth arranged on the gear ring is arranged on the wheel bin. The present invention has better reliability. When the pawl arm on the wheel bin is subjected to reverse force, the pawl arm also deforms in the centrifugal direction. The pawl teeth on the pawl arm and the ratchet teeth are closely attached together, and the circumferential teeth will be closely attached to the ratchet teeth on the pawl arm. The force-bearing states of the pawl arm and the ratchet teeth, as well as the circumferential teeth and the ratchet teeth, are very ideal, making the structure have higher reliability when subjected to reverse force.

Description

Technical Field

[0001] The present invention relates to the technical field of cord tightening and loosening, and particularly to a knob device using a rope or a wire rope. Background Art

[0002] The traditional way of tying shoelaces usually requires both hands to operate simultaneously, which is relatively slow and requires bending down and squatting for a long time, increasing the discomfort of the human body.

[0003] In view of the above technical problems, there is a known prior art patent that can overcome the above technical problems. It discloses a lace tying device and its control component (Application No.: CN201820684579.1, Application Date: May 9, 2018, Publication Date: January 22, 2019), including: a control component of a lace tying device, characterized by including: "a knob with a circumferential tooth and a first end face tooth, and a fixing hole is provided on the knob; a ratchet wheel chamber with a ratchet claw installed inside, and part of the ratchet wheel chamber is arranged inside the knob; a winding wheel with a convex shaft and a second end face tooth, the winding wheel is sleeved inside the ratchet wheel chamber, the convex shaft passes through the ratchet wheel chamber and is inserted into the positioning hole of the knob, and the knob drives the winding wheel to rotate... The rope threading member is arranged on the shoe upper, and the control component is arranged on the side of the shoe upper or the tongue of the shoe", using the rotary cover to drive the winding wheel to rotate, and adjusting the tightness of the shoe upper by tightening the winding to achieve rapid shoelace tying. However, this kind of shoelace tying device that uses the rotary cover to drive the winding wheel to rotate needs to press or pull up the rotary cover to rotate counterclockwise, and it cannot prevent it from rotating counterclockwise at any time. Moreover, the wire wheel in the existing shoelace tying device that uses the rotary cover to drive the winding wheel to rotate cannot achieve free rotation, so that the user cannot adjust the shoelaces more easily to achieve the purpose of loosening the shoelaces. Summary of the Invention

[0004] The present invention aims to solve the problems raised in the above background, and thus provides a knob device.

[0005] To achieve the above object, the present invention provides the following technical solution: A knob device includes a knob, a wheel chamber, a wire wheel, a base and shoelaces. The base is sewn on the side of the shoe upper or the tongue of the shoe. A buckle position is provided on the inner circumference of the knob. Multiple square holes are provided on the circumference of the wheel chamber. There are two rope threading holes 1 at the lower part of the outer circumference of the wheel chamber. A wire groove is provided in the middle of the wire wheel. A rope threading hole 2 is provided at the bottom of the wire wheel. A counterbore structure is provided at the center of the bottom of the wire wheel. It further includes a toothed ring, and a locking tooth for blocking the rotation of the toothed ring is provided on the toothed ring. A blocking mechanism corresponding to the locking tooth provided on the toothed ring is provided on the wheel chamber. Engaging structures for pushing the knob and the wire wheel to rotate are provided on both the knob and the wire wheel. A concave structure is provided on the engaging structure of the knob, and a convex structure corresponding to the concave structure is provided on the engaging structure of the wire wheel.

[0006] Preferably, the knob, the gear ring, the wheel bin, the wire wheel and the base are combined to form a knob device.

[0007] Preferably, the gear ring is a ratchet gear ring, the locking teeth are ratchet teeth, there are several ratchet teeth on the outer circumference of the ratchet gear ring, there are several positioning holes on the ratchet gear ring, the center of the ratchet gear ring is provided with a center of a circle, and the periphery of the center of the circle is a gear ring surface. The surface where the ratchet teeth contact the end face of the pawl teeth on the pawl is the position of the locking tooth end face.

[0008] Preferably, the wheel bin is a pawl wheel bin. The blocking mechanism on the pawl wheel bin is composed of a pawl arm, pawl teeth and the position of the pawl tooth end face. The locking teeth on the pawl wheel bin are pawl teeth. There are pawl teeth at the head of the pawl arm, and there are a positioning cylinder for positioning the pawl arm and a positioning hole matching the positioning cylinder at the bottom of the pawl teeth.

[0009] Preferably, the gear ring is a pawl ring. The pawl ring is provided with several pawl arms. The roots of the pawl arms are connected to the pawl ring, and there are ratchet teeth at the ends of the pawl arms. The pawl arms and the ratchet teeth are combined into the locking teeth of the pawl ring. There are several positioning holes on the pawl ring. The center of the pawl ring is provided with a center of a circle, and the periphery of the center of the circle is a gear ring surface. The surface where the pawl arm contacts the circumferential teeth is the position of the locking tooth end face.

[0010] Preferably, the wheel bin is a circumferential gear wheel bin. There is a circle of circumferential teeth on the upper part of the circumferential gear wheel bin, and the circumferential teeth are the blocking mechanism of the circumferential gear wheel bin.

[0011] Preferably, there is a raised circular edge on the outer circle of the wheel bin, and there are two outwardly protruding snap positions, a large one and a small one, namely snap position one and snap position two, arranged at the lower part of the outer circle of the wheel bin.

[0012] Preferably, the engaging structure on the knob is load rib one, and the fixing structure arranged on the knob engaging structure is a concave structure.

[0013] Preferably, the center position of the inner circle of the knob has a ring bone position structure divided into several segments. The engaging structure on the knob is load rib one and the concave structure are arranged on the ring bone position structure. There are several snap positions on the outside of the ring bone position structure. There is a larger ring structure outside the ring bone position structure, and there are several raised positioning bone positions on the ring structure.

[0014] Preferably, there is an annular bone position at the center of the upper part of the wire wheel. There are several engaging structures on the annular bone position. The fixing structure arranged on the wire wheel engaging structure is a protruding structure. The engaging structure on the wire wheel is load rib two, and the protruding structure is arranged on load rib two.

[0015] Preferably, the base has a large snap position one and a snap position two that match the large and small snap positions one and two on the wheel bin.

[0016] Preferably, the end face of the locking teeth is inclined to the right, and the end face of the pawl teeth and the surface in contact with the circumferential teeth are inclined in the opposite direction to the end face of the locking teeth.

[0017] The reliability of the anti-reverse structure of this application is greatly improved: the reliability is better. When the pawl arm on the wheel chamber is stressed in the reverse direction, the pawl arm also deforms in the centrifugal direction. The pawl teeth on the pawl arm and the ratchet teeth are closely attached together, and the circumferential teeth will be closely attached to the ratchet teeth on the pawl arm. The stress states of the pawl arm and the ratchet teeth, as well as the circumferential teeth and the ratchet teeth, are very ideal, making the structure more reliable when stressed in the reverse direction.

[0018] The anti-reverse strength of the structure of this application is improved: when the pawl teeth and the circumferential teeth are respectively stressed in the reverse direction with the ratchet teeth and the ratchet teeth of the pawl, the pawl teeth will be closely attached to the ratchet teeth, the pawl arm will also be closely attached to the ratchet teeth, and the ratchet teeth of the pawl will also be closely attached to the circumferential teeth, and the pawl arm will also be closely attached to the circumferential teeth. They form a whole when stressed, which has a great strengthening effect on the structure and enables it to bear a greater load.

[0019] The sound generated when the structure of this application is used changes from turbid to clear: the new structure makes a clearer and more pleasant sound, giving people a feeling of precision and high-end, and enhancing consumers' recognition of the product. When the knob rotates, the "click-click" sound is generated from the collision of the pawl teeth and the circumferential teeth with the ratchet teeth and the ratchet teeth of the pawl respectively. Different sound effects give consumers different feelings, thus generating different levels of trust in the product. When the structure of this application is stressed in the reverse direction, the stress states of the pawl teeth and the circumferential teeth with the ratchet teeth and the ratchet teeth of the pawl are reasonable, and the impact forces of the pawl teeth and the circumferential teeth with the ratchet teeth and the ratchet teeth of the pawl are relatively small, generating a light and clear sound, which can enhance consumers' experience and recognition of the product.

[0020] When the structure of this application winds the line clockwise, the strength and reliability are doubled: the wire wheel of the structure of this application adopts a whole-circle convex structure and the knob adopts a whole-circle concave structure for rotational engagement, enabling it to bear a greater load. At the same time, the engagement depth is 3 times deeper than that of the knob devices on the existing market, greatly improving the reliability of product use.

[0021] The structure of this application can adjust various biting forces: there are multiple convex and concave positions in the structure of this application, which is convenient for adjusting different forces of mutual engagement to meet the biting force requirements of different products.

[0022] The structure of this application can reduce the height of the whole product, which is convenient for consumers to use and greatly improves the appearance grade.

[0023] The structure of this application can make the whole knob device rotate freely: by designing that the end face of the locking teeth is inclined to the right, and the end face of the pawl teeth and the surface in contact with the circumferential teeth are inclined in the opposite direction to the end face of the locking teeth, it can make the knob be in a disengaged state from the pawl wheel and the wire wheel, achieving the effect that the knob can rotate freely.

[0024] In summary, the device of the present application can also be used in other fields for adjusting the tightness of laces, and has also been widely applied in fields such as helmets, bags, clothing, and medical devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall exploded structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the back structure of the knob of the present invention.

[0027] Figure 3 It is a schematic diagram of the front structure of the toothed ring in the first embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the back structure of the toothed ring in the first embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the front structure of the wheel chamber in the first embodiment of the present invention.

[0030] Figure 6 It is a schematic diagram of the back structure of the wheel chamber in the first embodiment of the present invention.

[0031] Figure 7 It is a schematic diagram of the front structure of the toothed ring in the second embodiment of the present invention.

[0032] Figure 8 It is a schematic diagram of the back structure of the toothed ring in the second embodiment of the present invention.

[0033] Figure 9 It is a schematic diagram of the front structure of the wheel chamber in the second embodiment of the present invention.

[0034] Figure 10 It is a schematic diagram of the back structure of the wheel chamber in the second embodiment of the present invention.

[0035] Figure 11 It is a schematic diagram of the front structure of the wire wheel of the present invention.

[0036] Figure 12 It is a schematic diagram of the back structure of the wire wheel of the present invention.

[0037] Figure 13 It is a schematic diagram of the front structure of the base of the present invention.

[0038] Figure 14 It is a schematic diagram of the back structure of the base of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figure 1 , 2 , 3, 4, 5, 6, 11, 12, 13, 14, in the first embodiment of the present invention;

[0041] The knob device of the present invention includes a knob 1, a ratchet ring 2, a ratchet wheel chamber 3, a wire wheel 4, and a base 5;

[0042] Among them, there are three buckle positions 101 on the inner peripheral edge of the knob 1, a ring bone position structure 102 divided into several segments at the center of the inner circle. There are load ribs 103 and concave position structures 104 on the ring bone position structure 102. There are three buckle position structures 105 on the outer side of the ring bone position structure 102. There is a larger ring structure 106 outside the ring bone position structure 102. There are three raised positioning bone positions 107 on the ring structure 106. Please refer to Figure 2 ;

[0043] Among them, there are several ratchet teeth 201 on the outer circumference of the ratchet ring 2. One side of the ratchet ring 2 is the tooth end face position 202. There are several positioning holes 203 on the ring. The center of the ratchet ring 2 is provided with a center 204. The periphery of the center 204 is a tooth ring surface 205. The tooth end face position 202 is inclined to the right, and the ratchet tooth end face position 303 of the ratchet pawl is inclined in the opposite direction to the tooth end face position 202. See Figure 3 , Figure 4 ;

[0044] Among them, the ratchet wheel chamber 3 has three ratchet arms 301. The head of the ratchet arm 301 has a ratchet tooth 302. The other side of the ratchet tooth 302 is the ratchet tooth end face position 303. There is a raised bone position 311 on the opposite side of the ratchet tooth 302. There is a positioning cylinder 305 for positioning the ratchet arm 301 on the bottom surface of the ratchet tooth 302, and a positioning hole 304 that cooperates with the positioning cylinder 305. There is a raised circular edge 306 on the outer circle of the ratchet wheel chamber 3. There are 3 square holes 307 corresponding to the position of the raised bone position 311 on the periphery. There are two rope holes 308 at the lower part of the outer circle of the ratchet wheel chamber 3. There are also two outwardly protruding buckle positions, a larger buckle position 310 and a smaller buckle position 309. See Figure 5 , Figure 6 ;

[0045] Among them, there is a ring bone position 401 in the center of the upper part of the line wheel 4, and there are several load tendons 402 on the ring bone position 401. There is a protruding structure 403 on the load tendon 402. There is a wire groove 406 in the middle of the line wheel 4, a rope hole 404 at the bottom, and a countersunk structure 405 in the center of the bottom. Figure 11 , Figure 12 ;

[0046] Among them, the base 5 has a large and a small buckle position 1 501 and a buckle position 2 502 that match the wheel compartment 3, a large and a small raised buckle position 1 310 and a raised buckle position 2 309, see Figure 13 , Figure 14 ;

[0047] The knob device of the present invention has better reliability. When the pawl arm on the ratchet wheel warehouse is subjected to reverse force, the pawl arm also deforms in the centrifugal direction. The pawl teeth and ratchet teeth on the pawl arm are tightly attached to each other. The stress state of the pawl arm and the ratchet teeth is very ideal, which makes the structure more reliable when subjected to reverse force. When the pawl teeth and the ratchet teeth are subjected to reverse force, the pawl teeth will be tightly attached to the ratchet teeth, and the pawl arm is also tightly attached to the ratchet teeth. They form a whole when subjected to force, which greatly strengthens the structure and enables it to withstand greater loads. The sound of the new structure is crisper and more pleasant, giving people a sense of precision and high-end, and improving consumers' recognition of the product. When the knob is rotated, the "clicking" sound produced comes from the collision sound of the pawl teeth and the ratchet teeth. Different sound effects give consumers different feelings, thereby generating different levels of trust in the product. The stress state of the pawl teeth and the ratchet teeth in the structure of the present application is reasonable when subjected to reverse force, and the impact force of the pawl teeth and the ratchet teeth is relatively small. The sound produced is light and crisp, which can improve consumers' experience and recognition of the product.

[0048] Parts assembly process:

[0049] a) Align the center circle 204 on the ratchet ring 2 with the center ring bone structure 102 on the knob 1. At the same time, align the positioning hole 203 on the ratchet ring 2 with the positioning bone 107 on the knob. Press the ratchet ring 2 and knob 1 together. You can hear a "click" sound. The multiple buckling structures 105 on the knob 1 buckle onto the toothed ring surface 205 on the ratchet ring 2. At this time, the knob 1 and ratchet ring 2 form an assembly, which is called a knob ratchet ring assembly;

[0050] b) Pull the positioning cylinders 305 on the three pawl arms 301 of the ratchet wheel housing 3 into the positioning holes 304 to position the pawl arms 301. Press the knob ratchet ring 2 assembly into the ratchet wheel housing 3. When pressing in, the multiple buckle positions 101 of the knob 1 will buckle into the outer circular edge 306 of the ratchet wheel housing 3. There is a gap between them, allowing for easy rotation. After the two parts are assembled, they become the knob ratchet wheel housing assembly.

[0051] c) Press the knob ratchet ring assembly into the pawl wheel chamber 3. When pressing, multiple latches 101 on the knob 1 are latched into the outer circular edge 306 of the pawl wheel chamber 3. There is a gap between them, allowing for easy rotation. After assembling these two parts, they form the knob wheel chamber assembly.

[0052] d) Align the annular bone position 401 on the thread wheel 4 with the circular ring bone position structure 102 on the knob 1. After cross - mating the load tendons one 103 and the load tendons two 402 in these two parts and pressing them towards each other with a little force, a "click" sound is heard. At this time, the protruding structure 403 on the thread wheel 4 is latched into the concave structure 104 in the knob 1. At this moment, the load tendons one 103 on the knob 1 and the load tendons two 402 on the thread wheel 4 are together, and the teeth 201 in the ratchet ring 2 are also engaged with the pawl teeth 302 in the pawl wheel chamber 3.

[0053] e) Rotate the knob 1 to turn the thread wheel 4 to a suitable position so that the second string - passing hole 404 on the thread wheel 4 is in a straight line with the first string - passing hole 308 in the pawl wheel chamber 3. Thread a shoelace with a suitable diameter through the first string - passing hole 308, thread it out through the second string - passing hole 404 on the thread wheel 4, pull out the rope end. Use the same method to thread the other rope end through another first string - passing hole 308 in the pawl wheel chamber 3 and another second string - passing hole 404 on the thread wheel 4, pull out the rope end, and press the knot formed by tying the two rope ends into the counterbore 405.

[0054] f) Install the above - assembled shoelace component into the base 5. The assembly method is to first install the first large latch 310 in the pawl wheel chamber 3 of the component into the first large latch 501 of the base 5, and then press the second small latch 309 on the pawl wheel chamber 3 into the second small latch 502 in the base 5. The entire part assembly is completed.

[0055] Functional specific implementation method:

[0056] Tighten the shoelaces. Press the knob 1 assembly slightly towards the base 5 with some force. When you hear a "click" sound, the knob 1 is in a combined state with the ratchet wheel chamber 3 and the wire wheel 4. During this process, the raised structure 403 on the wire wheel 4 is pressed into the recessed structure 104 in the knob 1. The central circular ring bone position structure 102 of the knob 1 is combined with the circular ring bone position 401 structure of the wire wheel 4. The load rib 103 on the circular ring bone position structure 102 and the load rib 402 on the wire wheel cross-engage. The locking teeth 201 on the ratchet ring 2 and the ratchet teeth 302 on the ratchet wheel chamber 3 are also in an engaged state. Rotate the knob clockwise. The locking teeth 201 on the ratchet ring 2 can cross over the ratchet teeth 302 on the ratchet wheel chamber 3. However, during the rotation process, there is always a ratchet tooth end face position 303 of a ratchet tooth 302 in the ratchet wheel chamber 3 facing the locking tooth end face position 202 of the locking teeth 201 on the ratchet ring 2 and can hold it at any time to prevent it from rotating counterclockwise. The load rib 103 on the knob 1 pushes the load rib 402 on the wire wheel to rotate together, thereby driving the wire wheel 4 to rotate clockwise. The shoelace knot in the central counterbore 405 of the wire wheel 4 pulls the shoelace into the wire groove 406 of the wire wheel until the shoelaces are tightened, thus achieving the purpose of tightening the shoelaces.

[0057] Loosen the shoelaces. Pull the knob 1 slightly away from the base 5 with some force. When you hear a "click" sound, the knob 1 is in a disengaged state from the ratchet wheel chamber 3 and the wire wheel 4. During this process, the raised structure 403 on the wire wheel 4 disengages from the recessed structure 104 in the knob 1. The ratchet teeth 201 on the ratchet ring 2 are disengaged from the ratchet teeth 302 on the ratchet wheel chamber 3. The load rib 103 on the knob 1 is also disengaged from the load rib 402 on the wire wheel. The wire wheel 4 is in a free state in the circumferential direction and can rotate freely. The shoelace can be easily pulled out of the wire groove, achieving the purpose of loosening the shoelaces.

[0058] Please refer to Figure 2 、 7 、8, 9, 10, 11, 12, 13, 14. In the second embodiment of the present invention;

[0059] The knob device of the present invention may further include a knob 1, a ratchet ring, a planetary gear chamber 3, a wire wheel 4, and a base 5;

[0060] Among them, there are three buckles 101 on the inner peripheral edge of the inner circle of the knob 1. At the center position of the inner circle, there is a circular ring bone position structure 102 divided into several segments. There is a load rib 103 and a recessed structure 104 on the circular ring bone position structure 102. There are three buckle structures 105 outside the circular ring bone position structure 102. There is a larger circular ring structure 106 outside the circular ring bone position structure 102. There are three raised positioning bone positions 107 on the circular ring structure 106. See Figure 2 ;

[0061] Among them, the ratchet ring has three pawl arms 206. The roots of the pawl arms 206 are connected to the ratchet ring, and the ends have ratchet teeth 207. One side of the pawl arm 206 is the tooth end face position 202. There are several grooves 203 on the ratchet ring. The center of the ratchet ring is provided with a center 204, and the periphery of the center 204 is a tooth ring surface 205. The tooth end face position 202 is inclined to the right, and the surface in contact with the circumferential teeth 311 is inclined in the opposite direction to the tooth end face position 202. See Figure 7 , Figure 8 ;

[0062] Among them, the upper part of the circumferential gear bin 3 has a circle of circumferential teeth 301, the upper outer circular edge has a circle of raised circular edges 306, there are two rope-passing holes 308 in the lower part of the outer circle, and there are two outwardly protruding buckle positions, namely the first buckle position 310 and the second buckle position 309, one large and one small. See Figure 9 , Figure 10 ;

[0063] Among them, the upper center part of the wire wheel 4 has an annular bone position 401. There are several load ribs 402 on the annular bone position 401. There are protruding structures 403 on the load ribs 402. There is a wire groove 406 in the middle of the wire wheel 4, a rope-passing hole 404 at the bottom, and a counterbore structure 405 at the center of the bottom. See Figure 11 , Figure 12 ;

[0064] Among them, on the base 5, there are a first large and small buckle position 501 and a second buckle position 502 that cooperate with the first buckle position 310 and the second buckle position 309 of the wheel bin 3, one large and one small. See Figure 13 , Figure 14 ;

[0065] The knob device in the present invention has better reliability. When the circumferential teeth on the circumferential gear bin are reversely stressed, the circumferential teeth will be closely attached to the ratchet teeth on the pawl arm. The stress states of the circumferential teeth and the ratchet teeth are very ideal, making the structure more reliable when reversely stressed. When the circumferential teeth and the ratchet teeth are reversely stressed, the ratchet teeth will also be closely attached to the circumferential teeth, and the pawl arm will also be closely attached to the circumferential teeth. They form a whole when stressed, which has a great strengthening effect on the structure, enabling it to bear a greater load. The new structure makes a clearer and more pleasant sound, giving people a feeling of precision and high-end, and improving consumers' recognition of the product. When the knob rotates, the "click-click" sound generated comes from the collision sound of the circumferential teeth and the ratchet teeth. Different sound effects give consumers different feelings, thus generating different levels of trust in the product. The structure of this application has a reasonable stress state for the circumferential teeth and the ratchet teeth when reversely stressed, and the impact force between the circumferential teeth and the ratchet teeth is relatively small, producing a light and clear sound, which can improve consumers' experience and recognition of the product.

[0066] Part assembly process:

[0067] a) Align the center circle 204 on the pawl ring with the center ring bone structure 102 of the knob 1. At the same time, align the groove structure 203 on the pawl ring with the positioning bone 107 on the knob. Press the pawl ring and the knob 1 towards each other with force until you hear a "click" sound. The three snap structures 105 on the knob 1 are snapped onto the peripheral position 205 on the pawl ring 2. At this time, the knob 1 and the pawl ring form a component, which is called the knob-pawl ring component;

[0068] b) Press the knob-pawl ring component into the planetary gear housing 3. When pressing in, the three snaps 101 of the knob are snapped into the outer circular edge 306 of the planetary gear housing 3. There is a gap between them, and it can be rotated easily. This new component is called the knob-planetary gear housing component;

[0069] c) Align the annular bone 401 on the thread wheel 4 with the ring bone structure 102 on the knob 1. After cross-matching the load ribs one 103 and the load ribs two 402 in these two parts and pressing them towards each other with a little force until you hear a "click" sound, the convex structure 403 on the thread wheel 4 is snapped into the concave structure 104 in the knob 1. At this time, the load ribs one 103 on the knob 1 are combined with the load ribs two 402 on the thread wheel 4, and the ratchet teeth 202 in the pawl ring are also engaged with the circumferential teeth 301 in the planetary gear housing 3;

[0070] d) Rotate the knob to turn the thread wheel 4 to a suitable position so that the threading hole two 404 on the thread wheel 4 is in a straight line with the threading hole one 308 in the planetary gear housing 3. Thread a shoelace with a suitable diameter through the threading hole one 308, thread it out through the threading hole two 404 on the thread wheel 4, pull out the rope end. Use the same method to thread the other rope end through another threading hole one 308 in the planetary gear housing 3 and another threading hole two 404 on the thread wheel 4, pull out the rope end, and press the knot after tying the two rope ends into the counterbore 405;

[0071] e) Install the component with the shoelace threaded as above into the base 5: The installation method is to first install the large snap one 310 in the planetary gear housing 3 in the component into the large snap one 501 of the base 5, and then press the small snap two 309 on the planetary gear housing 3 into the small snap two 502 in the base 5. The entire part assembly is completed.

[0072] Functional specific implementation method:

[0073] Tighten the shoelaces. Press the knob assembly slightly towards the base. When you hear a "click" sound, the knob 1 is in a combined state with the circumferential gear chamber 3 and the wire wheel 4. During this process, the convex structure 403 on the wire wheel 4 is pressed into the concave structure 104 in the knob 1. The central circular rib structure 102 of the knob 1 is combined with the circular rib 401 structure of the wire wheel 4. The load rib 103 on the circular rib structure 102 is cross-engaged with the load rib 402 on the wire wheel 4. The ratchet teeth 207 on the ratchet ring are also in an engaged state with the circumferential teeth 301 on the circumferential gear chamber 3. Rotate the knob clockwise. The ratchet teeth 207 on the ratchet ring can cross over the circumferential teeth 301 of the circumferential gear chamber 3. However, during the rotation process, there is always an end face of a circumferential tooth 301 in the circumferential gear chamber 3 facing the tooth end face position 202 of the ratchet teeth 207 on the ratchet ring and can hold it at any time to prevent it from rotating counterclockwise. The load rib 103 on the knob 1 pushes the load rib 402 on the wire wheel to rotate together, thereby driving the wire wheel 4 to rotate clockwise. The shoelace knot in the central counterbore 405 of the wire wheel 4 pulls the shoelace into the wire groove 406 of the wire wheel until the shoelace is tightened, thus achieving the purpose of tightening the shoelace.

[0074] Loosen the shoelace: Pull the knob 1 slightly away from the base 4. When you hear a "click" sound, the knob 1 is in a disengaged state from the circumferential gear chamber 3 and the wire wheel 4. During this process, the convex structure 403 on the wire wheel 4 disengages from the concave structure 10 in the knob 1. The ratchet teeth 207 on the ratchet ring are disengaged from the circumferential teeth 301 on the circumferential gear chamber 3. The load rib 103 on the knob 1 is also disengaged from the load rib 402 on the wire wheel 4. The wire wheel 4 is in a free state in the circumferential direction and can rotate freely. The shoelace can be easily pulled out of the wire groove, achieving the purpose of loosening the shoelace.

Claims

1. A knob device, comprising a wire wheel (4) and a base (5), characterized in that: It also includes a knob (1), a toothed ring (2) and a wheel chamber (3). The toothed ring (2) is provided with locking teeth that can prevent the rotation of the toothed ring (2). The wheel chamber (3) is provided with a blocking mechanism corresponding to the locking teeth provided on the toothed ring (2). Both the knob (1) and the wire wheel (4) are provided with engaging structures that can push the knob (1) and the wire wheel (4) to rotate. The engaging structures on the knob (1) and the wire wheel (4) are both provided with fixing structures that are clamped and fixed to each other; The engaging structure on the knob (1) is a load rib one (103), and the fixing structure provided on the engaging structure of the knob (1) is a concave structure (104); At the center position of the inner circle of the knob (1), there is an annular bone position structure (102) divided into several segments. The engaging structure on the knob (1) is the load rib one (103) and the concave structure (104) are arranged on the annular bone position structure (102). There are multiple buckle positions (105) on the outer side of the annular bone position structure (102). There is a larger annular structure (106) around the annular bone position structure (102), and there are multiple raised positioning bone positions (107) on the annular structure (106); On the base (5), there are a large and a small buckle one (501) and buckle two (502) that cooperate with the large and small raised buckle one (310) and raised buckle two (309) of the wheel chamber (3).

2. The knob device according to claim 1, wherein: The knob (1), the toothed ring (2), the wheel chamber (3), the wire wheel (4) and the base (5) are combined to form a knob device. The wheel chamber (3) has three pawl arms (301), and the head of the pawl arm (301) has pawl teeth (302).

3. The knob device according to claim 2, wherein: The toothed ring (2) is a ratchet ring (2), the locking teeth are ratchet teeth (201). There are several ratchet teeth (201) on the outer circumference of the ratchet ring (2). The ratchet ring (2) is provided with several positioning holes. The center of the ratchet ring (2) is provided with a center (204), and the periphery of the center (204) is a toothed ring surface (205). The surface where the ratchet teeth (201) contact the pawl tooth end face position (303) on the pawl teeth (302) is the locking tooth end face position (202).

4. The knob device according to claim 3, characterized in that: The wheel chamber (3) is a pawl wheel chamber (3). The blocking mechanism on the pawl wheel chamber (3) is composed of a pawl arm (301), a pawl tooth (302) and a pawl tooth end face position (303). The locking teeth on the pawl wheel chamber (3) are pawl teeth (302). The head of the pawl arm (301) has pawl teeth (302). There are positioning cylinders (305) for positioning the pawl arm on the bottom surface of the pawl teeth (302) and positioning holes (304) that cooperate with the positioning cylinders (305).

5. The knob device according to claim 2, wherein: The toothed ring (2) is a pawl ring. The pawl ring is provided with several pawl arms (206). The roots of the pawl arms (206) are connected to the pawl ring. The ends of the pawl arms (206) have ratchet teeth (207). The pawl arms (206) and the ratchet teeth (207) are combined to form the locking teeth of the pawl ring. The pawl ring is provided with several positioning holes. The center of the pawl ring is provided with a center (204), and the periphery of the center (204) is a toothed ring surface (205). The surface where the pawl arms (206) contact the circumferential teeth (311) is the locking tooth end face position (202).

6. The knob device according to claim 5, wherein: The wheel bin (3) is a circumferential gear bin (3). There is a circle of circumferential teeth (311) on the upper part of the circumferential gear bin (3), and the circumferential teeth (311) serve as the blocking mechanism of the circumferential gear bin (3).

7. The knob device according to claim 4 or 6, characterized in that: There is a raised circular edge (306) on the outer circular edge of the wheel bin (3). There are two outwardly protruding snap positions, a large one and a small one, namely snap position one (310) and snap position two (309), provided at the lower part of the outer circle of the wheel bin (3).

8. The knob device according to any one of claims 1 or 2, characterized in that: There is an annular bone position (401) at the central part of the upper part of the wire wheel (4). There are several engaging structures on the annular bone position (401). The fixing structure provided on the engaging structure of the wire wheel (4) is a protruding structure (403). The engaging structure on the wire wheel (4) is load rib two (402), and the protruding structure (403) is provided on the load rib two (402).

9. The knob device according to any one of claims 1, 2, 3, 4, 5 or 6, characterized in that: The base (5) is sewn on the side of the shoe upper or on the tongue of the shoe. There is a snap position (101) provided on the inner peripheral edge of the knob (1). There are multiple square holes (307) provided on the peripheral edge of the wheel bin (3). There are multiple rope-passing holes one (308) at the lower part of the outer circle of the wheel bin (3). There is a wire groove (406) in the middle of the wire wheel (4). There is a rope-passing hole two (404) provided at the bottom of the wire wheel (4), and there is a counterbore structure (405) at the center of the bottom of the wire wheel (4).

10. The knob device according to any one of claims 3 or 5, characterized in that: The end face position of the locking tooth (202) is inclined to the right, and the surface where the end face position of the pawl tooth (303) contacts the circumferential teeth (311) is inclined in the opposite direction to the end face position of the locking tooth (202).

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