Durable knob shoe, high strength motorized knob and knob button

Abstract

The utility model provides a durable knob shoes, high strength motorized knob and knob button, install knob button on the shoe main body, and utilize knob button to tie up shoelace, after the motorized dog of knob button and knob main body install, the pre-tightening of knob main body presses the wall and presses the motorized dog of inner ring, make the free end of claw towards the claw disc main body produce certain swing displacement, make claw limit protruding card in the upper of disc limit step and be up and down limit, make the motorized dog only swing in the direction of inner and outer ring which is nearly horizontal, avoid the free end of claw and claw tooth be pulled down, no matter when the rope has no tension, the motorized dog will not produce the situation of bending down, can carry out axial limit protection to the motorized dog, ensure that the motorized dog will not be hurt even break; simultaneously make the motorized dog swing and produce certain pre-tightening in the inner ring and be in the pre-tightening state, ensure that the motorized dog has higher speed and elasticity than initial relaxation state. The utility model also proposes a high strength motorized knob and knob button with the preceding effect.

Description

Technical Field

[0001] This utility model relates to the field of daily life, specifically to a durable knob shoe, a high-strength motorized knob, and a knob buckle. Background Technology

[0002] Shoes, clothing, backpacks, hats, protective gear and other items usually have ropes or straps at the openings to tighten or loosen them. Currently, people fix the tightness of the ropes by tying knots, which is cumbersome, inconvenient, easy to loosen and not simple or beautiful. In particular, shoes are subjected to a lot of force such as being stepped on, and the strength of the ropes seriously affects the durability of the shoes.

[0003] To address the aforementioned problems, Chinese invention patent CNCN116831357A discloses a closing device comprising: a base; a housing releasably connected to the base; a spool rotatably positioned within the housing, the spool being configured such that a tensioning member can wind around the spool; and a tightening member rotatably connected to the housing and operably connected to the spool, such that operation of the tightening member causes the spool to rotate within the housing, thereby allowing the tensioning member to wind around the spool; wherein the housing is connected to the base by axially inserting it into the base and rotating it relative to the base; and wherein the housing is detachable from the base without requiring rotation relative to the base. The housing is detachable from the base when a force is applied to it to axially move it out of the base. The axial movement of the housing out of the base is achieved by deflection of at least a portion of the base. The base includes one or more ports or channels into which a force-applying tool can be positioned to apply a force to the housing to axially move the housing out of the base. The bottom end of the housing, capable of insertion into the base, includes a plurality of radially extending tabs; the base includes a plurality of radially extending channels aligned with the radially extending tabs to allow axial insertion of the housing into the base; and rotation of the housing relative to the base causes each radially extending tab to move within a circumferential groove or channel and be positioned below a lip or protrusion of the base. At least one of the radially extending tabs of the housing is configured to mechanically engage with an anti-rotation member of one of the circumferential grooves or channels of the base to prevent reverse rotation of the housing relative to the base, thereby securing the connection between the housing and the base. The base and the housing are configured such that the housing must be aligned with the base in one or more defined orientations to be connected to the base. The base and the housing are configured to prevent rotation of the housing relative to the base when the housing is axially inserted into the base in an orientation different from one or more defined orientations. A closure device includes: a base; a housing releasably coupled to the base; a spool rotatably positioned within the housing; a tightening member rotatably coupled to the housing and operably coupled to the spool; wherein the housing is rotatable relative to the base to engage the housing with the base; and wherein the housing is axially movable relative to the base to detach the housing from the base.When a force is applied to the housing, the housing is axially movable relative to the base. The axial movement of the housing relative to the base requires a deflection of at least a portion of the base. The base includes one or more ports or channels into which a force-applying tool can be positioned to apply a force to the housing that causes axial movement relative to the base. The base and the housing are configured to prevent rotation of the housing relative to the base unless the housing is aligned with the base in a defined orientation. The bottom end of the housing includes a plurality of radially extending tabs; the base includes a plurality of radially extending channels aligned with the plurality of radially extending tabs to allow the housing to be axially inserted into the base; and rotation of the housing relative to the base causes each radially extending tab to move within a circumferential groove or channel and be positioned below a lip or protrusion of the base. In this embodiment, at least one of the radially extending tabs of the housing is configured to mechanically engage with an anti-rotation member of a circumferential groove or channel in the base to prevent the housing from rotating in the opposite direction relative to the base, thereby securing the connection between the housing and the base. The base and the housing are configured such that the housing must be aligned with the base in at least one defined orientation to connect the housing to the base. The base and the housing are configured to prevent rotation of the housing relative to the base when the housing is not aligned with the base in the at least one defined orientation. A method of assembling a closure device includes: axially inserting the bottom end of the housing into the base; and rotating the housing relative to the base to connect the housing to the base. The method further includes applying a force to the housing to move the housing axially relative to the base, thereby disassembling the housing from the base. The axial insertion of the bottom end of the housing into the base includes inserting a plurality of radially extending tabs of the housing into corresponding radially extending channels of the base; and the rotation of the housing relative to the base causes each radially extending tab to move below a lip or protrusion of the base.

[0004] This invention patent application solves the problem of manually tying shoelaces to some extent by using a knob to tighten and loosen the rope. However, when the rope is tightened, the motorized pawl is subjected to significant pressure from the housing teeth. When the knob is pulled out to loosen the rope, the pawl teeth are pulled downwards by the housing teeth due to the large friction, which pulls the end of the motorized pawl downwards. At this time, the tension of the rope has not disappeared, which creates bending pressure on the motorized pawl, leading to damage or even breakage. Moreover, when the aforementioned invention's motorized pawl is used in the loosened state, the elasticity and speed are insufficient, which can easily cause slow response and looseness, resulting in insufficient strength and durability of the screw-on shoes with the knob.

[0005] In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0006] One objective of this utility model is to provide a durable knob shoe whose rotating clasp has a motorized claw that is not easily broken, has a high spring speed, a large elastic force, and is highly practical.

[0007] The second objective of this utility model is to provide a high-strength motorized knob with a motorized chuck that is not easily broken, has a high spring speed, a large spring force, and is highly practical.

[0008] The third objective of this utility model is to provide a knob with a motorized claw that is not easily broken, has a high spring speed, a large spring force, and is highly practical.

[0009] To achieve the above objectives, this utility model adopts the following technical solution: A durable knob shoe includes a shoe body and a knob fastener mounted on the shoe body. The knob fastener includes a motorized knob, a base, a cylindrical shell snapped to the base, and a winding shaft installed inside the cylindrical shell. The motorized knob includes a knob body and a claw disc connected to the knob body. The claw disc includes a claw disc body and a motorized claw disposed on the claw disc body and located on the outer ring of the claw disc body. The motorized claw has an inner claw side facing the claw disc body and an outer claw side facing away from the claw disc body. The motorized claw has claw teeth that engage with the shell teeth. The motorized claw has a claw root at one end connected to the claw disc body and a claw free end at the other end that can approach and move away from the center of the claw disc body. Claw teeth are disposed on the outer claw side of the claw free end with their tips facing outward. The arrangement direction of the knob body and the claw disc is defined as vertical, with the knob body on top of the claw disc. The pawl disc is located below the knob body; the pawl disc is connected to the lower surface of the knob body, and the pawl disc and the knob body are coaxially arranged. The knob body has a knob connecting part that connects to the pawl disc body, and the pawl disc body has a disc connecting part that cooperates with the knob connecting part; there is a pawl gap between the motorized pawl and the pawl disc body for the motorized pawl to swing toward the pawl disc body. The inner ring side of the pawl at the free end of the pawl is provided with a pawl limiting protrusion facing the pawl disc body, and the pawl disc body has a disc limiting step corresponding to the pawl limiting protrusion; the motorized pawl has an initial relaxed state without swinging toward the inner ring and a pre-tightened state that swings under pressure toward the inner ring; a pre-tightening pressure wall is formed on the lower surface of the knob body, which presses the motorized pawl toward the inner ring, so that the motorized pawl is in a pre-tightened state and the pawl limiting protrusion is locked above the disc limiting step, and the pre-tightening pressure wall is located on the outer ring of the motorized pawl.

[0010] A high-strength motorized knob includes a knob body and a pawl disk connected to the knob body. The pawl disk includes a pawl disk body and a motorized pawl disposed on the outer ring of the pawl disk body. The motorized pawl has an inner ring side facing the pawl disk body and an outer ring side facing away from the pawl disk body. The motorized pawl has pawl teeth that engage with housing teeth. The motorized pawl has a pawl root at one end connected to the pawl disk body, and a free end at the other end that can approach or move away from the center of the pawl disk body. The pawl teeth are disposed on the outer ring side of the free end of the pawl with their tips facing outwards. The arrangement direction of the knob body and the pawl disk is defined as vertical, with the knob body above the pawl disk and the pawl disk below the knob body. The pawl disk is connected to the lower surface of the knob body. The knob body and the pawl disc are coaxially arranged. The knob body has a knob connecting part that connects to the pawl disc body, and the pawl disc body has a disc connecting part that connects to the knob connecting part. There is a pawl gap between the motorized pawl and the pawl disc body for the motorized pawl to swing toward the pawl disc body. The inner ring side of the pawl at the free end of the pawl is provided with a pawl limiting protrusion facing the pawl disc body. The pawl disc body has a disc limiting step corresponding to the pawl limiting protrusion. The motorized pawl has an initial relaxed state where it does not swing toward the inner ring and a pre-tightened state where it swings due to pressure against the inner ring. The lower surface of the knob body is formed with a pre-tightening pressure wall that presses against the motorized pawl against the inner ring, so that the motorized pawl is in a pre-tightened state and the pawl limiting protrusion is locked above the disc limiting step. The pre-tightening pressure wall is located on the outer ring of the motorized pawl.

[0011] In the initial relaxed state where the motorized chuck is not pressed against the inner ring by the pre-tightened pressure wall, there is an injection molding gap between the projection of the chuck limiting protrusion and the disc limiting step on the horizontal plane.

[0012] The inner ring side of the pawl of the motorized pawl has a pawl clearance notch located below the pawl limiting protrusion and making way for the disc limiting step, and the pawl disc body has a disc clearance notch located above the disc limiting step and making way for the pawl limiting protrusion.

[0013] The lower end of the claw teeth protrudes further downward than the lower end of the pre-tightened pressing wall.

[0014] The lower surface of the knob body has a receiving groove for accommodating the claw disc, and the groove wall serves as a pre-tightening pressure wall.

[0015] The claw plate body and the knob body are snapped together.

[0016] The knob connection includes at least two knob hooks formed on the lower surface of the knob body and hooking onto the claw plate body. Each knob hook is arranged around the center of the claw plate body. Each knob hook includes a downwardly extending knob hook rod and a knob hook body formed at the lower end of the knob hook rod. The tip of the knob hook body faces the claw plate body. The plate connection includes at least two plate latching parts that correspond to and cooperate with the knob hook bodies.

[0017] The lower surface of the knob body has a downwardly extending positioning protrusion, and the claw plate body has a positioning groove that matches the positioning protrusion; the positioning protrusion and the knob hook are integrally injection molded with the knob body; two or more motorized claws are evenly surrounding the claw plate body and integrally injection molded with the claw plate body.

[0018] A knob includes a base, a cylindrical shell snapped into the base, and a winding shaft installed inside the cylindrical shell; the cylindrical shell and the winding shaft are both coaxially arranged with the knob body and the claw disc; the claw disc body has driving teeth facing the winding shaft and driving the winding shaft to rotate, and the winding shaft has driven teeth that cooperate with the driving teeth; the upper part of the inner side of the cylindrical shell has a plurality of shell teeth arranged around the axis of the cylindrical shell; the claw teeth include upper teeth located in receiving grooves and lower teeth extending into the inner circle of the shell teeth and cooperating with the shell teeth.

[0019] By adopting the above technical solution, the durable knob shoe of this utility model breaks through the traditional construction form of the knob on shoes, and installs the knob on the main body of the shoe, such as on the tongue, side of the upper, or heel. When installing the knob, the base can be used to connect it to the shoe by sewing, gluing, or other methods. The high-strength motorized knob, winding shaft, cylindrical shell, and base are assembled together as appropriate. When the motorized pawl is installed with the knob body, the pre-tightening pressure wall of the knob body presses against the motorized pawl inward, so that the free end of the pawl faces the pawl disc body. A certain amount of swing displacement is generated, causing the claw limiting protrusion to be locked above the disc limiting step, thus limiting the motorized claw to swing only in the near-horizontal inner and outer ring directions. This prevents the free end of the claw and its teeth from being pulled downwards. Regardless of whether there is tension on the rope, the motorized claw will not bend downwards, providing axial limiting protection to ensure that the motorized claw is not damaged or broken. At the same time, the motorized claw swings inwards, generating a certain pre-tension force and ensuring that it is in a pre-tensioned state, ensuring that the motorized claw has a higher elastic speed and force than in the initial relaxed state. In actual operation, the winding shaft is installed inside the cylinder and can rotate freely. Driven by a high-strength motorized knob, the winding shaft can tighten the rope in the direction of rope tightening. When tightening the rope, the high-strength motorized knob moves towards the cylinder shell. The driving teeth of the high-strength motorized knob engage with the driven teeth of the winding shaft. Simultaneously, the motorized pawl extends into the cylinder shell, causing the lower part of the pawl teeth to align with the shell teeth. This allows the high-strength motorized knob to rotate smoothly in the direction of tightening the rope, using the winding shaft to tighten the rope. In the opposite direction of loosening the rope, it has a braking effect. When loosening the rope, simply pull up the knob body, causing the pawl disc and its motorized pawl and teeth to disengage upwards from the shell teeth. Simultaneously, the driving teeth disengage from the driven teeth, and the winding shaft is unlocked, allowing the rope to be loosened in the direction of loosening. Compared with existing technologies, the advantages of this invention are as follows: its knob buckle has advantages such as the motorized pawl being less prone to breakage, high spring speed, large elastic force, and strong practicality.

[0020] This utility model features a high-strength motorized knob that breaks through the traditional structure of a knob-button and motorized pawl. When the motorized pawl is installed with the knob body, the pre-tightening pressure wall of the knob body presses against the motorized pawl inwards, causing the free end of the pawl to swing towards the pawl disc body. This causes the pawl's limiting protrusion to be locked above the disc's limiting step, limiting its vertical movement. This ensures the motorized pawl swings only in a nearly horizontal inner-outer ring direction, preventing the free end of the pawl and its teeth from being pulled downwards. Regardless of whether the rope is under tension, the motorized pawl will not bend downwards, providing axial limiting protection and preventing damage or breakage. Simultaneously, the inward swing of the motorized pawl generates a pre-tightening force, ensuring it is in a pre-tightened state with higher elastic speed and force than its initial relaxed state. In actual operation, the winding shaft, installed inside the cylinder, can rotate freely. Driven by the high-strength motorized knob, the winding shaft can tighten the rope in the direction of rope tightening. When tightening the rope, the high-strength motorized knob moves towards the cylinder shell. The driving teeth of the high-strength motorized knob engage with the driven teeth of the winding shaft. Simultaneously, the motorized pawl extends into the cylinder shell, allowing the pawl teeth to engage with the shell teeth. This enables the high-strength motorized knob to rotate smoothly in the direction of tightening the rope, thus tightening the rope using the winding shaft. Conversely, in the direction of loosening the rope, it provides a braking effect. When loosening the rope, simply pull up the knob body. This causes the pawl disc and its motorized pawl and teeth to disengage upwards from the shell teeth. Simultaneously, the driving teeth disengage from the driven teeth, and the winding shaft is unlocked, allowing the rope to be loosened in the direction of loosening. Compared to existing technologies, the high-strength motorized knob of this invention has advantages such as the motorized pawl being less prone to breakage, high spring speed, large spring force, and strong practicality.

[0021] This utility model of a knob buckle breaks through the traditional construction of knob buckles. In actual installation, it can be connected to shoes and other items by means of sewing or gluing using a base. The high-strength motorized knob, winding shaft, cylindrical shell, and base are assembled together. When the motorized pawl is installed with the knob body, the pre-tightening pressure wall of the knob body presses against the motorized pawl inwards, causing the free end of the pawl to swing towards the pawl disc body. This causes the pawl's limiting protrusion to be locked above the disc's limiting step, limiting its vertical movement. This ensures the motorized pawl swings only in a nearly horizontal inner and outer ring direction, preventing the free end of the pawl and its teeth from being pulled downwards. Regardless of whether the rope or object is under tension, the motorized pawl will not bend downwards, providing axial limiting protection to prevent damage or breakage. Simultaneously, the inward swing of the motorized pawl generates a certain pre-tightening force, ensuring the motorized pawl has a higher elastic speed and force than its initial relaxed state. In actual operation, the winding shaft, housed within the cylindrical shell, can rotate freely. Driven by a high-strength motorized knob, the winding shaft can tighten the rope in the direction of tightening. When tightening the rope, the high-strength motorized knob is moved towards the cylindrical shell, engaging the driving teeth of the knob with the driven teeth of the winding shaft. Simultaneously, the motorized pawl extends into the cylindrical shell, with the lower part of the pawl teeth corresponding to the shell teeth. This allows the high-strength motorized knob to rotate smoothly in the direction of tightening the rope, tightening it using the winding shaft, while providing a braking effect in the opposite direction of loosening the rope. When loosening the rope, simply pull up the knob body, causing the pawl disc and its motorized pawl and teeth to disengage upwards from the shell teeth. Simultaneously, the driving teeth disengage from the driven teeth, and the winding shaft is unlocked, allowing the rope to be loosened in the direction of loosening. Compared with existing technologies, the advantages of this invention are as follows: it has advantages such as the motorized pawl being less prone to breakage, high spring speed, large elastic force, and strong practicality. Attached Figure Description

[0022] Figure 1 This is an exploded view of the button's structure. Figure 2 This is a cross-sectional view of the button. Figure 3 This is a cross-sectional view of the button from another angle. Figure 4 This is a top-view three-dimensional structural diagram of the chuck disk; Figure 5 A three-dimensional structural diagram of the chuck disk viewed from below; Figure 6 A top-view horizontal projection diagram of the chuck disc in its initial relaxed state when the motorized chuck is not pressed against the inner ring by the pre-tightened pressure wall; Figure 7A schematic diagram of the horizontal projection structure of the chuck disc in its initial relaxed state when the motorized chuck is not pressed against the inner ring by the pre-tightened pressure wall; Figure 8 This is a top-view planar structural diagram of the chuck disc in its pre-tensioned state when the motorized chuck is pressed inward by the pre-tensioned pressure wall. Figure 9 A plan view of the preloaded state of the chuck disc when the motorized chuck is pressed inward by the preloaded pressure wall; Figure 10 A three-dimensional structural diagram of the knob body viewed from below; Figure 11 This is a schematic diagram of the knob body from a downward angle. Figure 12 This is a schematic diagram showing the structural state of a knob applied to a shoe.

[0023] In the picture: 1-Knob body, 11-Knob connecting part, 111-Knob hook, 1111-Knob hook rod, 1112-Knob hook body, 12-Pre-tightening pressure wall, 13-Accommodation groove, 14-Positioning protrusion; 2-Claw disc, 21-Claw disc body, 211-Disc connecting part, 2111-Disc latching part, 212-Disc limiting step, 213-Disc clearance notch, 214-Claw connecting part, 215-Positioning groove, 216-Drive tooth, 217-Pillar hole, 22-Motorized claw, 221-Claw tooth, 2211-Upper part of tooth, 2212-Lower part of tooth, 222-Claw limiting protrusion, 223-Claw clearance notch, 23-Claw gap, 24-Injection molding gap; 3-Base, 4-Cylinder shell, 41-Shell tooth, 5-Winding shaft, 51-Driven tooth, 52-Shaft hole, 6-Switch post, 61-Post bottom wall, 62-Post head. Detailed Implementation

[0024] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments. However, the definitions of directions, etc., made for ease of explanation are not limited to these definitions.

[0025] This utility model relates to a durable knob shoe, such as... Figure 1-12As shown, the shoe body includes a knob for mounting. In practice, this invention mounts the knob on the shoe body, for example, on the tongue, side of the upper, or heel. When mounting the knob, the base 3 can be connected to the shoe via stitching, gluing, or other methods. The high-strength motorized knob, winding shaft 5, cylindrical shell 4, and base 3 are assembled together as needed. When the motorized pawl 22 is mounted with the knob body 1, the pre-tightening pressure wall 12 of the knob body 1 presses against the motorized pawl 22 inwards, causing the free end of the pawl to swing towards the pawl disc body 21, thus causing the pawl limiting protrusion 222 to... The pawl 22 is positioned above the limit step 212 and is limited vertically, causing it to swing only in the near-horizontal inner and outer ring directions. This prevents the free end of the pawl and the teeth 221 from being pulled downwards. Regardless of whether there is tension on the rope, the pawl 22 will not bend downwards. This provides axial limit protection for the pawl 22, ensuring that it will not be damaged or broken. At the same time, the pawl 22 swings inwards to generate a certain pre-tension force and is in a pre-tensioned state, ensuring that the pawl 22 has a higher elastic speed and elastic force than in the initial relaxed state.

[0026] A high-strength motorized knob, such as Figure 1-12As shown, the device includes a knob body 1 and a pawl disk 2 connected to the knob body 1. The pawl disk 2 includes a pawl disk body 21 and a motorized pawl 22 disposed on the pawl disk body 21 and located on its outer ring. The motorized pawl 22 has an inner pawl side facing the pawl disk body 21 and an outer pawl side facing away from the pawl disk body 21. The motorized pawl 22 has pawl teeth 221 that engage with the housing teeth 41. The motorized pawl 22 has a pawl root at one end connected to the pawl disk body 21 and a pawl free end at the other end that can approach and move away from the center of the pawl disk body 21. The pawl teeth 221 are located on the outer pawl side of the free end of the pawl with their tips facing outwards. The arrangement direction of the knob body 1 and the pawl disk 2 is defined as vertical, with the knob body 1 above the pawl disk 2 and the pawl disk 2 below the knob body 1. The pawl disk 2 is connected to the lower surface of the knob body 1, and the pawl disk 2 and the knob body 1 are connected vertically. The body 1 is coaxially arranged. The knob body 1 has a knob connecting part 11 that is connected to the claw disk body 21. The claw disk body 21 has a disk connecting part 211 that is connected to the knob connecting part 11. There is a claw gap 23 between the motorized claw 22 and the claw disk body 21 for the motorized claw 22 to swing toward the claw disk body 21. The claw limiting protrusion 222 facing the claw disk body 21 is provided on the inner ring side of the claw at the free end of the claw. The claw disk body 21 has a disk limiting step 212 corresponding to the claw limiting protrusion 222. The motorized claw 22 has an initial relaxed state without swinging toward the inner ring and a pre-tightened state that swings under the pressure of the inner ring. The lower surface of the knob body 1 is formed with a pre-tightening pressing wall 12 that presses the motorized claw 22 toward the inner ring, so that the motorized claw 22 is in the pre-tightened state and the claw limiting protrusion 222 is locked above the disk limiting step 212. The pre-tightening pressing wall 12 is located on the outer ring of the motorized claw 22. In practice, after the motorized pawl 22 is installed with the knob body 1, the pre-tightening pressure wall 12 of the knob body 1 presses against the motorized pawl 22 inward, causing the free end of the pawl to swing towards the pawl disc body 21. This causes the pawl limiting protrusion 222 to be locked above the disc limiting step 212 and vertically limited, ensuring that the motorized pawl 22 swings only in a nearly horizontal inner and outer ring direction. This prevents the free end of the pawl and the pawl teeth 221 from being pulled downward. Regardless of whether the rope is under tension, the motorized pawl 22 will not bend downward, thus providing axial limiting protection for the motorized pawl 22 and ensuring that it will not be damaged or broken. At the same time, the motorized pawl 22 swings inward to generate a certain pre-tightening force and is in a pre-tightened state, ensuring that the motorized pawl 22 has a higher elastic speed and elastic force than in the initial relaxed state. In actual operation, the winding shaft 5 is installed inside the cylinder shell 4 and can rotate freely. Driven by the high-strength motorized knob, the winding shaft 5 can tighten the rope in the direction of tightening the rope.When the rope needs to be tightened, the high-strength motorized knob is moved toward the cylinder shell 4. The driving tooth 216 of the high-strength motorized knob engages with the driven tooth 51 of the winding shaft 5. At the same time, the motorized pawl 22 extends into the cylinder shell 4 so that the pawl tooth 221 engages with the shell tooth 41. This allows the high-strength motorized knob to rotate smoothly in the direction of tightening the rope and uses the winding shaft 5 to tighten the rope. In the opposite direction of loosening the rope, it has a braking effect. When the rope needs to be loosened, simply pull up the knob body 1, which will drive the pawl disc 2 and its motorized pawl 22 and pawl tooth 221 to disengage upward from the shell tooth 41. At the same time, the driving tooth 216 also disengages from the driven tooth 51, and the winding shaft 5 is in the unlocked state. The rope can be loosened in the direction of loosening the rope. In the initial state, to facilitate the integral injection molding of the chuck disk 2, the chuck limiting protrusion 222 is vertically offset from the chuck disk body 21, which facilitates the vertical demolding and integral injection molding of the motorized chuck 22 and the chuck disk body 21, and ensures the independent swinging performance of the motorized chuck 22. To further ensure the vertical demolding and integral injection molding of the motorized chuck 22 and the chuck disk body 21, and to ensure the independent swinging performance of the motorized chuck 22, in the initial relaxed state where the motorized chuck 22 is not pressed inward by the pre-tightening pressure wall 12, there is an injection molding gap 24 between the projection of the chuck limiting protrusion 222 and the disk limiting step 212 on the horizontal plane. To facilitate sufficient deformation space between the motorized jaw 22 and the jaw disc body 21, and to ensure the integral injection molding of the motorized jaw 22 and the jaw disc body 21, the jaw disc body 21 further includes a jaw connecting portion 214 extending outward and connecting to the jaw root. Specifically, the jaw disc body 21, the jaw connecting portion 214, and the jaw root are smoothly connected to avoid stress concentration, fatigue damage, and ensure long-term stable performance. The specific structure can be that two, three, or four motorized jaws 22 are evenly arranged around the jaw disc body 21 to ensure the balance of the jaw disc 2 and the shell 4 in terms of fit and force distribution. Furthermore, the motorized jaw 22 is a smooth arc arching outward, forming an approximately circular structure after arrangement. When the motorized jaw 22 is limited and supported by the pre-tightened pressure wall 12 on the outer ring, the compressive strength of the jaw in the length direction can be ensured. The knob body 1 can be made of high-strength resin materials such as PC and ABS, and the claw plate 2 can be made of resin materials with high elasticity and strength such as POM and PC.

[0027] Preferably, the inner ring side of the motorized chuck 22 has a chuck clearance notch 223 located below the chuck limiting protrusion 222 and making way for the disc limiting step 212, and the chuck disc body 21 has a disc clearance notch 213 located above the disc limiting step 212 and making way for the chuck limiting protrusion 222. When the motorized chuck 22 swings inward toward the chuck disc body 21, the chuck clearance notch 223 can make way for the disc limiting step 212, and the disc clearance notch 213 can make way for the chuck limiting protrusion 222, allowing the pre-tightened motorized chuck 22 to have sufficient space to swing inward, ensuring that the elastic swing performance of the motorized chuck 22 is effectively utilized.

[0028] Preferably, the lower end of the claw tooth 221 protrudes further downward than the lower end of the pre-tightening pressure wall 12. This structure facilitates the claw tooth 221 to extend into the cylindrical shell 4 and engage with the shell tooth 41.

[0029] Preferably, the lower surface of the knob body 1 has a receiving groove 13 for accommodating the claw disk 2, and the groove wall of the receiving groove 13 serves as a pre-tightening pressure wall 12. The receiving groove 13 can accommodate and protect the claw disk 2, and also facilitates the integral injection molding of the pre-tightening pressure wall 12 with the knob body 1 and ensures the strength of the knob body 1 and the pre-tightening pressure wall 12. The upper end of the claw tooth 221 has a guide slope for the claw tooth 221 to be inserted into the receiving groove 13, the edge of the receiving groove 13 has a guide slope for the motorized claw 22 to be inserted into the receiving groove 13, and the lower end of the claw tooth 221 has a guide slope for the claw tooth 221 to extend into the inner side of the cylindrical shell 4 and cooperate with the shell tooth 41.

[0030] To facilitate the installation and connection of the claw disc 2 and the knob body 1, preferably, the claw disc body 21 and the knob body 1 are snapped together. Specifically, the knob connecting part 11 includes at least two knob hooks 111 formed on the lower surface of the knob body 1 and hooking the claw disc body 21. Each knob hook 111 is arranged around the center of the claw disc body 21. The knob hook 111 includes a downwardly extending knob hook rod 1111 and a knob hook body 1112 formed at the lower end of the knob hook rod 1111. The tip of the knob hook body 1112 faces the claw disc body 21. The disc connecting part 211 includes at least two disc snap-fit ​​parts 2111 that correspond one-to-one with the knob hook bodies 1112. In actual installation, the claw plate body 21 can be pressed into the gaps between the button hooks 111, so that the button hooks 1112 hook onto the plate latching parts 2111 to achieve latching. Each button hook 1112 hooks onto its corresponding plate latching part 2111, thus achieving the installation of the claw plate 2 and the knob body 1. The button hooks 111 have guide slopes for the claw plate body 21 to smoothly engage with the button hooks 111, and the claw plate body 21 also has guide slopes for the claw plate body 21 to smoothly engage with the button hooks 111. Furthermore, a downwardly extending positioning protrusion 14 is formed on the lower surface of the knob body 1, and a positioning groove 215 matching the positioning protrusion 14 is formed on the claw plate body 21; the positioning protrusion 14 and the button hooks 111 are integrally injection molded with the knob body 1; two or more motorized claws 22 are evenly surrounding the claw plate body 21 and integrally injection molded with it. During the process of pressing the claw disc body 21 into the button hooks 111, the positioning protrusions 14 of the knob body 1 gradually extend into the positioning grooves 215 of the claw disc body 21. After the claw disc 2 and the knob body 1 are installed, each positioning protrusion 14 and each positioning groove 215 are positioned and engaged in a one-to-one manner. This allows the knob body 1 and the claw disc 2 to withstand higher rotational torque, and also prevents the button hooks 111 and the disc latching part 2111 from rotating and shifting relative to each other due to rotational torque, thus preventing disengagement. This ensures the torsional strength and connection strength of the connection between the claw disc body 21 and the knob body 1. Specifically, the lower edge of the positioning protrusion 14 has a guide slope for the positioning protrusion 14 to extend into the positioning groove 215, and the edge of the positioning groove 215 has a guide slope for the positioning protrusion 14 to extend into the positioning groove 215.

[0031] A type of knob, such as Figure 1-12As shown, it includes a base 3, a cylindrical shell 4 that is snapped to the base 3, and a winding shaft 5 installed inside the cylindrical shell 4; the cylindrical shell 4 and the winding shaft 5 are both arranged coaxially with the knob body 1 and the claw disk 2; the claw disk body 21 has a driving tooth 216 that faces the winding shaft 5 and drives the winding shaft 5 to rotate, and the winding shaft 5 has a driven tooth 51 that cooperates with the driving tooth 216; a plurality of shell teeth 41 arranged around the axis of the cylindrical shell 4 are formed on the upper part of the inner side surface of the cylindrical shell 4; the claw tooth 221 includes an upper tooth portion 2211 located in the receiving groove 13 and a lower tooth portion 2212 that extends into the inner circle of the shell tooth 41 and cooperates with the shell tooth 41. In practice, this utility model can be connected to shoes and other items by means of sewing, gluing, etc. using the base 3. The high-strength motorized knob, winding shaft 5, cylindrical shell 4 and base 3 can be assembled together in a timely manner. When the motorized claw 22 is installed with the knob body 1, the pre-tightening pressure wall 12 of the knob body 1 presses against the motorized claw 22 inward, causing the free end of the claw to swing towards the claw disc body 21. The claw limiting protrusion 222 is locked above the disc limiting step 212 and is limited vertically. The motorized claw 22 swings only in the near-horizontal inner and outer ring directions, preventing the free end of the claw and the claw teeth 221 from being pulled downward. Regardless of whether there is tension on the rope, the motorized claw 22 will not bend downward. The motorized claw 22 can be axially limited and protected, ensuring that the motorized claw 22 will not be damaged or even broken. At the same time, the motorized claw 22 swings inward to generate a certain pre-tightening force and is in a pre-tightened state, ensuring that the motorized claw 22 has a higher elastic speed and elastic force than the initial relaxed state. In actual operation, the winding shaft 5 is installed inside the cylindrical shell 4 and can rotate freely. Driven by the high-strength motorized knob, the winding shaft 5 can tighten the rope in the direction of tightening. When it is necessary to tighten the rope, the high-strength motorized knob is moved towards the cylindrical shell 4. The driving tooth 216 of the high-strength motorized knob meshes with the driven tooth 51 of the winding shaft 5. At the same time, the motorized pawl 22 extends into the cylindrical shell 4 so that the lower part 2212 of the pawl tooth 221 corresponds to the shell tooth 41, realizing the smooth rotation of the high-strength motorized knob in the direction of tightening the rope and using the winding shaft 5 to tighten the rope. In the opposite direction of loosening the rope, it has a braking effect. When it is necessary to loosen the rope, simply pull up the knob body 1, which will drive the pawl disc 2 and its motorized pawl 22 and pawl tooth 221 to disengage upward from the shell tooth 41. At the same time, the driving tooth 216 also disengages from the driven tooth 51, and the winding shaft 5 is in the unlocked state, so the rope can be loosened in the direction of loosening the rope. The specific structure can be as follows: the shell 4 includes an upper chamber forming the shell teeth 41 and a lower chamber accommodating the winding shaft 5. An annular limiting partition is formed between the upper and lower chambers, which limits the winding shaft 5. The chuck disk 2 and the shell teeth 41 cooperate in the upper chamber to ensure that the upper and lower parts do not interfere with each other's movements, and that the working position and performance of each part are stable. A space hole is formed in the middle of the annular limiting partition for the driving teeth 216 and the driven teeth 51 to cooperate.To ensure reliable assembly of the knob body 1 and the cylindrical shell 4, the knob body 1 further includes a knob sidewall facing the base 3 and surrounding the upper outer ring of the cylindrical shell 4. This sidewall has a knob hook extending inwards and hooking onto the cylindrical shell 4. An annular step is formed on the upper part of the outer circumferential surface of the cylindrical shell 4 for the knob hook to engage. After pressing the upper end of the cylindrical shell 4 into the knob body 1, the knob hook will engage with the annular step, ensuring that the knob body 1 can rotate smoothly relative to the cylindrical shell 4 while also preventing them from easily disengaging. Specifically, the upper inner side of the cylindrical shell 4 may have a sloping surface for the claw teeth 221 to slide into the cylindrical shell 4 and engage with the shell teeth 41. Furthermore, the motorized pawl 22 extends gradually from the pawl root to the free end of the pawl towards the direction of loosening the rope. The tips of the pawl teeth 221 face outwards and towards the direction of loosening the rope, while the tips of the housing teeth 41 face inwards and towards the direction of tightening the rope. This structure ensures smooth rotation of the high-strength motorized knob towards the direction of tightening the rope and tightening the rope using the winding shaft 5, while having a braking effect in the opposite direction of loosening the rope. Furthermore, the tips of the drive teeth 216 face downwards and towards the direction of tightening the rope, while the tips of the driven teeth 51 face upwards and towards the direction of loosening the rope. This structure ensures that the drive teeth 216 can efficiently engage with the driven teeth 51 when moving downwards, and that the drive teeth 216 can drive the driven teeth 51 in the direction of tightening the rope to drive the winding shaft 5 to tighten the rope.

[0032] The specific structure may also include a switch post 6 that extends upward through the winding shaft 5. The switch post 6 is snapped onto the lower end of the cylindrical shell 4 through the bottom wall 61. The switch post 6 includes a post head 62 with an opening at the upper end. A post hole 217 that mates with the post head 62 is formed in the middle of the claw plate body 21. When the knob is pressed down or pulled up, the elastic opening and closing of the post head 62 is utilized, and the post hole 217 bites or spits out the post head 62. When the high-strength motorized knob is pressed down, the post hole 217 swallows the post head 62 and is limited below the post head 62, keeping the motorized pawl 22 in contact with the housing teeth 41. The drive teeth 216 are in contact with the driven teeth 51. Rotating the high-strength motorized knob in the direction of tightening the rope can drive the winding shaft 5 to wind and tighten the rope. The housing teeth 41 and the pawl teeth 221 cooperate to position the rotation of the high-strength motorized knob and the winding shaft 5, maintaining the tightened state. When the high-strength motorized knob is pulled up, the post hole 217 ejects the post head 62 and is limited above the post head 62, causing the motorized pawl 22 to disengage from the housing teeth 41. The drive teeth 216 disengage from the driven teeth 51, and the winding shaft 5 can rotate in the direction of loosening the rope to prevent it from loosening. Multiple drive teeth 216 are evenly arranged around the post hole 217. The winding shaft 5 has a shaft hole 52 through which the switch post 6 passes, and multiple driven teeth 51 are evenly arranged around the shaft hole 52.

[0033] The specific structure can be such that the cylindrical shell 4 and the base 3 are installed together by a press-fit or rotation-fit mechanism. The base 3 can be made of a resin material with a certain degree of flexibility, such as nylon.

[0034] Of course, the same installation method can be used to install the button on clothing, bags, or protective equipment, and it will also give full play to its high strength and durability.

[0035] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. A durable knob shoe, comprising a shoe body and a knob fastener mounted on the shoe body; the knob fastener includes a motorized knob, a base, a cylindrical shell snapped to the base, and a winding shaft installed within the cylindrical shell; the motorized knob includes a knob body and a claw disc connected to the knob body; the claw disc includes a claw disc body and a motorized claw disposed on the claw disc body and located on the outer ring of the claw disc body; the motorized claw has an inner claw side facing the claw disc body and an outer claw side facing away from the claw disc body; the motorized claw has claw teeth that engage with the shell teeth; the motorized claw has a claw root at one end connected to the claw disc body, and a claw free end at the other end that can approach and move away from the center of the claw disc body; the claw teeth are disposed on the outer claw side of the claw free end with their tips facing outwards; the arrangement direction of the knob body and the claw disc is defined as vertical, with the knob body above the claw disc and the claw disc below the knob body; characterized in that: The pawl disc is connected to the lower surface of the knob body, and the pawl disc and the knob body are coaxially arranged. The knob body has a knob connecting part that connects to the pawl disc body, and the pawl disc body has a disc connecting part that mates with the knob connecting part. There is a pawl gap between the motorized pawl and the pawl disc body for the motorized pawl to swing toward the pawl disc body. The inner ring side of the pawl at the free end of the pawl is provided with a pawl limiting protrusion facing the pawl disc body. The pawl disc body has a disc limiting step corresponding to the pawl limiting protrusion. The motorized pawl has an initial relaxed state without swinging toward the inner ring and a pre-tightened state that swings under pressure toward the inner ring. The lower surface of the knob body is formed with a pre-tightening pressure wall that presses the motorized pawl toward the inner ring, so that the motorized pawl is in a pre-tightened state and the pawl limiting protrusion is locked above the disc limiting step. The pre-tightening pressure wall is located on the outer ring of the motorized pawl.

2. A high-strength motorized knob, comprising a knob body and a pawl disk connected to the knob body; the pawl disk includes a pawl disk body and a motorized pawl disposed on the pawl disk body and located on the outer ring of the pawl disk body; the motorized pawl has an inner pawl side facing the pawl disk body and an outer pawl side facing away from the pawl disk body; the motorized pawl has pawl teeth that engage with housing teeth; the motorized pawl has a pawl root at one end connected to the pawl disk body, and a pawl free end at the other end that can approach and move away from the center of the pawl disk body; the pawl teeth are disposed on the outer pawl side of the free end of the pawl with their tips facing outwards; the arrangement direction of the knob body and the pawl disk is defined as vertical, with the knob body above the pawl disk and the pawl disk below the knob body; characterized in that: The pawl disc is connected to the lower surface of the knob body, and the pawl disc and the knob body are coaxially arranged. The knob body has a knob connecting part that connects to the pawl disc body, and the pawl disc body has a disc connecting part that mates with the knob connecting part. There is a pawl gap between the motorized pawl and the pawl disc body for the motorized pawl to swing toward the pawl disc body. The inner ring side of the pawl at the free end of the pawl is provided with a pawl limiting protrusion facing the pawl disc body. The pawl disc body has a disc limiting step corresponding to the pawl limiting protrusion. The motorized pawl has an initial relaxed state without swinging toward the inner ring and a pre-tightened state that swings under pressure toward the inner ring. The lower surface of the knob body is formed with a pre-tightening pressure wall that presses the motorized pawl toward the inner ring, so that the motorized pawl is in a pre-tightened state and the pawl limiting protrusion is locked above the disc limiting step. The pre-tightening pressure wall is located on the outer ring of the motorized pawl.

3. The high-strength motorized knob according to claim 2, characterized in that: In the initial relaxed state where the motorized chuck is not pressed against the inner ring by the pre-tightened pressure wall, there is an injection molding gap between the projection of the chuck limiting protrusion and the disc limiting step on the horizontal plane.

4. The high-strength motorized knob according to claim 3, characterized in that: The inner ring side of the pawl of the motorized pawl has a pawl clearance notch located below the pawl limiting protrusion and making way for the disc limiting step, and the pawl disc body has a disc clearance notch located above the disc limiting step and making way for the pawl limiting protrusion.

5. The high-strength motorized knob according to any one of claims 2-4, characterized in that: The lower end of the claw teeth protrudes further downward than the lower end of the pre-tightened pressing wall.

6. The high-strength motorized knob according to claim 5, characterized in that: The lower surface of the knob body has a receiving groove for accommodating the claw disc, and the groove wall serves as a pre-tightening pressure wall.

7. The high-strength motorized knob according to claim 6, characterized in that: The claw plate body and the knob body are snapped together.

8. The high-strength motorized knob according to claim 7, characterized in that: The knob connection includes at least two knob hooks formed on the lower surface of the knob body and hooking onto the claw plate body. Each knob hook is arranged around the center of the claw plate body. Each knob hook includes a downwardly extending knob hook rod and a knob hook body formed at the lower end of the knob hook rod. The tip of the knob hook body faces the claw plate body. The plate connection includes at least two plate latching parts that correspond to and cooperate with the knob hook bodies.

9. The high-strength motorized knob according to claim 8, characterized in that: The lower surface of the knob body has a downwardly extending positioning protrusion, and the claw plate body has a positioning groove that matches the positioning protrusion; the positioning protrusion and the knob hook are integrally injection molded with the knob body; two or more motorized claws are evenly surrounding the claw plate body and integrally injection molded with the claw plate body.

10. A knob buckle based on a high-strength motorized knob according to any one of claims 2-9, characterized in that: It includes a base, a cylindrical shell that is snapped to the base, and a winding shaft installed inside the cylindrical shell; the cylindrical shell and the winding shaft are both arranged coaxially with the knob body and the claw disk; the claw disk body has driving teeth that face the winding shaft and drive the winding shaft to rotate, and the winding shaft has driven teeth that cooperate with the driving teeth; the upper part of the inner side of the cylindrical shell has a plurality of shell teeth arranged around the axis of the cylindrical shell; the claw teeth include upper teeth that are located in the receiving groove and lower teeth that extend into the inner circle of the shell teeth and cooperate with the corresponding shell teeth.

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