Double-color shoelace knob

Abstract

The utility model discloses a double-color shoelace knob which is simple in structure and good in stability. According to the technical scheme, the device comprises a base, a middle seat fixed in the base, a wire coil rotatably arranged in the middle seat and a rotary cover rotatably arranged at the upper end of the base in a pluggable mode, the rotary cover drives the wire coil to rotate through a gear tooth mechanism, and one-way rotation of the rotary cover is limited through a ratchet mechanism. The middle seat is provided with a wire guide hole, the screw cap is composed of an inner screw cap and an outer screw cap arranged outside the inner screw cap in a sleeving mode, and the gear tooth mechanism comprises an outer gear integrally formed at the upper end of the wire coil and an inner gear integrally formed on the fluted disc. The ratchet wheel mechanism comprises an inner ratchet wheel integrally formed at the upper end of the middle seat and a group of pawls which are arranged circumferentially and integrally formed on the fluted disc, a group of riveting holes are formed in the end face of the fluted disc, and a group of hanging grooves are formed in the side wall of the fluted disc; and a riveting column which is in riveting fit with the riveting hole and a first hook which is in hanging fit with the hanging groove are arranged in the inner screw cap.

Description

Technical Field

[0001] The utility model relates to a shoelace knob. Background Art

[0002] Knob shoelaces are a popular shoelace tying method in the market. It uses a shoelace knob to loosen or tighten the shoelaces. The advantage of this tying method is that it can make the shoelaces more secure and more convenient and quick. The traditional shoelace knob structure, as shown in the Chinese utility model patent with the authorization announcement number "CN 217565091 U" and the name "an adjustable shoe knob assembly", includes a base, an intermediate seat fixed in the base, a rotatable wire drum arranged in the intermediate seat, and a movable (i.e., rotatable and movable) rotary cover arranged at the upper end of the base. The rotary cover drives the wire drum to rotate through a gear mechanism, and its unidirectional rotation is limited by a ratchet mechanism. The rotary cover can move up and down within the travel range limited by the base or the intermediate seat. The disadvantages are: 1. The rotary cover has only a single color, the color is monotonous, and it cannot be matched as required; 2. The overall structure is complex, the stability is poor, and it is not easy to assemble. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a two-color shoelace knob with a simple structure and good stability.

[0004] To solve the above problems, the technical solution adopted by the utility model includes: a base, an intermediate seat fixed in the base, a wire drum rotatably arranged in the intermediate seat, and a rotary cover rotatably and pluggably arranged at the upper end of the base, the rotary cover drives the wire drum to rotate through a gear mechanism, and limits its unidirectional rotation through a ratchet mechanism, and a wire hole is provided on the intermediate seat, characterized in that: the rotary cover consists of an inner rotary cover and an outer rotary cover sleeved outside the inner rotary cover, the gear mechanism includes an outer gear integrally formed at the upper end of the wire drum and an inner gear integrally formed on the toothed disc, the ratchet mechanism includes an inner ratchet integrally formed at the upper end of the intermediate seat and a group of circumferentially arranged ratchet pawls integrally formed on the toothed disc, the end face of the toothed disc is provided with a group of rivet holes, the side wall is provided with a group of hanging grooves, the inner rotary cover is provided with a rivet column riveted to the rivet hole and a first hook hanging to the hanging groove.

[0005] The two-color shoelace knob is characterized in that: the inner rotating cover is engaged with the flange on the top of the middle seat through the second hook at the bottom, and the toothed disc is connected to the axial hole in the center of the wire drum through a central integrally formed rotating shaft, a buckle is provided at the bottom of the rotating shaft, and a clamping rib that cooperates with the buckle is provided in the axial hole.

[0006] The two-color shoelace knob is characterized in that: the end face of the inner rotating cover is provided with a middle positioning protrusion and an edge positioning protrusion arranged around the middle positioning protrusion, and the outer rotating cover is provided with a middle positioning hole adapted to the middle positioning protrusion and an edge positioning hole adapted to the edge positioning protrusion.

[0007] The two-color shoelace knob is characterized in that the inner rotating cover is hung with the hanging groove on the inner wall of the outer rotating cover through a third hook on the outer wall.

[0008] The two-color shoelace knob is characterized in that the outer wall of the inner rotating cover is provided with positioning ribs, and the inner wall of the outer rotating cover is provided with positioning grooves.

[0009] The two-color shoelace knob is characterized in that the side wall of the outer rotating cover is provided with anti-slip ribs.

[0010] The two-color shoelace knob is characterized in that there are three ratchets.

[0011] The advantages of the two-color shoelace knob of the utility model are as follows: the rotary cover consists of an inner rotary cover and an outer rotary cover sleeved outside the inner rotary cover, and the inner rotary cover and the outer rotary cover can be matched with different colors according to needs, and the gear mechanism consists of an outer gear integrally formed at the upper end of the wire drum and an inner gear integrally formed on the toothed disk, and the ratchet mechanism consists of an inner ratchet integrally formed at the upper end of the middle seat and a group of circumferentially arranged ratchets integrally formed on the toothed disk, and then a group of rivet holes and a group of hanging grooves are arranged on the end face of the toothed disk, and finally the rivet column in the inner rotary cover and the first hook are connected to the rivet holes and hanging grooves of the toothed disk, so that the overall structure is simpler and the stability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a structural schematic diagram of the double-color shoelace knob of the utility model;

[0014] Figure 2 It is an exploded view of the two-color shoelace knob of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the toothed disc of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the inner rotating cover of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the wire drum of the utility model. DETAILED DESCRIPTION

[0018] like Figures 1 to 5As shown, the two-color shoelace knob of the utility model comprises a base 1, an intermediate seat 2 fixed in the base 1, a wire drum 3 rotatably arranged in the intermediate seat 2, and a rotary cover 4 rotatably and pluggably arranged at the upper end of the base 1. The intermediate seat 2 is connected to the base 1 through a hook at the bottom. The rotary cover 4 drives the wire drum 3 to rotate through a gear mechanism, and limits its unidirectional rotation through a ratchet mechanism, and a wire hole 5 is provided on the intermediate seat 2. The rotary cover 4 is composed of an inner rotary cover 6 and an outer rotary cover 7 sleeved outside the inner rotary cover 6. The gear mechanism includes an outer gear 8 integrally formed at the upper end of the wire drum 3 and an inner gear 10 integrally formed on a toothed disc 9, and the ratchet mechanism includes an inner ratchet 11 integrally formed at the upper end of the intermediate seat 2 and a group of circumferentially arranged ratchets 12 integrally formed on the toothed disc 9. The ratchets 12 are ideally three. The end surface of the toothed disc 9 is provided with a group of riveting holes 13, the side wall of the toothed disc 9 is provided with a group of hanging grooves 14, and the inner rotary cover 6 is provided with a riveting column 15 riveted with the riveting holes 13 and a first hook 16 hanging with the hanging groove 14. After assembly, when the rotary cover 4 is pressed down and inserted with force, the outer gear 8 is engaged with the inner gear 10 and the inner ratchet 11 is engaged with the pawl 12. At this time, the rotary cover 4 drives the wire drum 3 to rotate in one direction, thereby tightening the shoelaces on the wire drum 3. When the rotary cover 4 is pulled out with force, the outer gear 8 is separated from the inner gear 10 and the inner ratchet 11 is separated from the pawl 1. At this time, the wire drum 3 can be reversed, thereby loosening the shoelaces on the wire drum 3.

[0019] Preferably, the inner rotating cover 6 is hooked and matched with the flange (18) on the top of the middle seat 2 through the second hook 17 at the bottom, so as to be used for positioning the inner rotating cover 6 after it is inserted and pulled into place. The toothed disc 9 is connected to the shaft hole 20 at the center of the wire drum 3 through the central integrally formed rotating shaft 19, so as to be used for center positioning of the toothed disc 9 and the inner rotating cover 6. A buckle 21 is provided at the bottom of the rotating shaft 19, and a clamping rib 22 that cooperates with the buckle 21 is provided in the shaft hole 20. The buckle 21 cooperates with the clamping rib 22 to position the inner rotating cover 6 after it is inserted and pulled into place, and a "pop" sound can be made during the insertion and removal process, so that the user can judge whether it is inserted and pulled into place and improve the hand feel.

[0020] Preferably, the end surface of the inner rotating cover 6 is provided with a middle positioning protrusion 23 and an edge positioning protrusion 24 arranged around the middle positioning protrusion 23, and the outer rotating cover 7 is provided with a middle positioning hole 25 adapted to the middle positioning protrusion 23 and an edge positioning hole 26 adapted to the edge positioning protrusion 24, so as to further improve the stability and aesthetics of the connection between the inner rotating cover 6 and the outer rotating cover 7.

[0021] Preferably, the inner cover 6 is connected to the hanging groove 28 on the inner wall of the outer cover 7 through the third hook 27 on the outer wall. The outer wall of the inner cover 6 is provided with a positioning rib 29, and the inner wall of the outer cover 7 is provided with a positioning groove 30. This facilitates the connection between the inner cover 6 and the outer cover 7 and increases the stability of the connection.

[0022] Preferably, the side wall of the outer rotating cover 7 is provided with anti-skid ribs 31 to play an anti-skid role.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A two-color shoelace knob, comprising a base (1), an intermediate seat (2) fixed in the base (1), a wire drum (3) rotatably arranged in the intermediate seat (2), and a rotatable and pluggable rotary cover (4) arranged on the upper end of the base (1), wherein the rotary cover (4) drives the wire drum (3) to rotate through a gear mechanism and limits its unidirectional rotation through a ratchet mechanism, and a wire hole (5) is provided on the intermediate seat (2), characterized in that: The rotary cover (4) is composed of an inner rotary cover (6) and an outer rotary cover (7) sleeved on the inner rotary cover (6); the gear mechanism comprises an outer gear (8) integrally formed on the upper end of the wire drum (3) and an inner gear (10) integrally formed on the toothed disc (9); the ratchet mechanism comprises an inner ratchet (11) integrally formed on the upper end of the intermediate seat (2) and a group of circumferentially arranged ratchet pawls (12) integrally formed on the toothed disc (9); a group of rivet holes (13) are provided on the end surface of the toothed disc (9) and a group of hanging grooves (14) are provided on the side wall; a rivet column (15) riveted to the rivet hole (13) and a first hook (16) hanging to the hanging groove (14) are provided in the inner rotary cover (6).

2. The two-color shoelace knob according to claim 1, characterized in that: The inner rotating cover (6) is engaged with the flange (18) at the top of the intermediate seat (2) via a second hook (17) at the bottom, and the toothed disc (9) is connected to the shaft hole (20) at the center of the wire drum (3) via a central integrally formed rotating shaft (19), a buckle (21) is provided at the bottom of the rotating shaft (19), and a clamping rib (22) that cooperates with the buckle (21) is provided in the shaft hole (20).

3. The two-color shoelace knob according to claim 1, characterized in that: The end surface of the inner rotating cover (6) is provided with a middle positioning protrusion (23) and an edge positioning protrusion (24) arranged around the middle positioning protrusion (23), and the outer rotating cover (7) is provided with a middle positioning hole (25) adapted to the middle positioning protrusion (23) and an edge positioning hole (26) adapted to the edge positioning protrusion (24).

4. The two-color shoelace knob according to claim 1, characterized in that: The inner rotating cover (6) is connected to the hanging groove (28) on the inner wall of the outer rotating cover (7) via a third hook (27) on the outer wall.

5. The two-color shoelace knob according to claim 4, characterized in that: The outer wall of the inner rotating cover (6) is provided with positioning ribs (29), and the inner wall of the outer rotating cover (7) is provided with positioning grooves (30).

6. The two-color shoelace knob according to claim 1, characterized in that: The side wall of the outer rotating cover (7) is provided with anti-slip ribs (31).

7. The two-color shoelace knob according to claim 1, characterized in that: There are three ratchet claws (12).

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