Rope belt adjusting device

Abstract

The utility model discloses a rope belt adjusting device which comprises a base and a rotary knob, an installation cavity with an opening towards one end is formed in the base, the rotary knob is arranged at the opening of the installation cavity of the base, a bobbin used for winding a rope belt is arranged in the installation cavity, and a driving gear extending towards the interior of the installation cavity of the base is arranged on the top wall of the inner side of the rotary knob. A driven gear matched with the driving gear is arranged on the bobbin; the base comprises a bottom plate and an outer cylinder located on the bottom plate, a via hole for the rope belt to penetrate through is formed in the side wall of the outer cylinder, a bottom plate hole for the rope belt to penetrate into the base is formed in the inner ring of the bottom plate, and the bottom plate hole is communicated with the via hole. According to the rope belt adjusting device, the bottom plate hole communicated with the through hole is formed in the bottom plate, so that the rope belt can penetrate into the rope belt adjusting device from the bottom plate hole after the rope belt adjusting device is assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of cord adjustment, in particular to a cord adjustment device. Background Art

[0002] A cord adjustment device is a device used to adjust the length of a cord, and is commonly used to adjust the length of cords in shoes and bags.

[0003] In the prior art, the cord of the cord adjustment device usually needs to be installed into the adjustment device before the device is assembled, making the cord installation process of the cord adjustment device rather cumbersome; at the same time, the cord adjustment device of the prior art cannot be directly fixed on textile products, and an additional connecting bracket needs to be provided. First, the connecting bracket is fixed to the textile product by sewing, and then the cord adjustment device is fixed to the connecting bracket. The installation process is cumbersome, with many components and poor connection stability. Summary of the Utility Model

[0004] This application aims to solve one of the technical problems in the related art to a certain extent. For this purpose, this application provides a cord adjustment device.

[0005] To achieve the above object, this application adopts the following technical solution: A cord adjustment device includes a base and a knob. The base forms an installation chamber that is open at one end. The knob is disposed at the opening of the installation chamber of the base. A spool for winding the cord is disposed in the installation chamber. A driving gear extending into the interior of the installation chamber of the base is disposed on the inner top wall of the knob, and a driven gear cooperating with the driving gear is disposed on the spool.

[0006] The base includes a bottom plate and an outer cylinder on the bottom plate. A through hole for the cord to pass through is disposed on the side wall of the outer cylinder. A bottom plate hole for the cord to penetrate into the base is disposed on the bottom plate, and the bottom plate hole communicates with the through hole.

[0007] In this technical solution, through the cooperation of the driving gear disposed on the knob and the driven gear disposed on the spool, the knob drives the spool to rotate in the base, so as to wind the cord on the spool, thereby realizing the adjustment of the cord length; by respectively disposing a through hole and a bottom plate hole on the outer cylinder and the inner ring of the bottom plate of the base and connecting the through hole and the bottom plate hole, after the cord adjustment device is assembled, the cord can be inserted through the bottom plate hole and passed out through the through hole, realizing the installation of the cord into the cord adjustment device from the bottom of the base, making the operation of installing the cord into the cord adjustment mechanism more convenient and fast.

[0008] Further, a sewing connection portion is further disposed on the bottom plate, and the sewing connection portion is located outside the outer cylinder.

[0009] Further, a knob cover is sleeved outside the knob, and anti-slip patterns are provided on the outer side wall of the knob cover.

[0010] Further, the knob and the knob cover are of an integral structure.

[0011] Further, the knob and the knob cover are of a split structure, and are fixedly connected to each other.

[0012] Further, a ratchet is provided on the inner top wall of the knob, at least one ratchet pawl is provided on the ratchet, a plurality of engaging teeth that can engage with the ratchet pawl are provided on the inner side wall of the outer cylinder body, and the plurality of engaging teeth are annularly distributed on the inner side wall of the outer cylinder body. When the engaging teeth are engaged with the ratchet pawl, the knob is prevented from rotating in a first direction or a second direction, and the first direction and the second direction are opposite to each other.

[0013] Further, a first connection state and a second connection state are formed between the knob and the base;

[0014] When the knob forms a first connection state relative to the base, the driving gear is engaged with the driven gear, the ratchet pawl is engaged with the engaging teeth, and the spool rotates in one of the first direction or the second direction under the drive of the knob;

[0015] When the knob forms a second connection state relative to the base, the driving gear is separated from the driven gear, the ratchet pawl is separated from the engaging teeth, the spool can rotate in a direction opposite to the first connection state under the action of the rope, and the knob can rotate freely in the first direction and the second direction.

[0016] Further, the ratchet and the knob are connected in a snap-fit manner. A first snap-fit member is provided on the inner top wall of the knob, and a second snap-fit member that cooperates with the first snap-fit member is provided on the ratchet.

[0017] Further, the spool includes a first limiting plate, a second limiting plate and a winding post. The winding post is located between the first limiting plate and the second limiting plate. The driven gear is located on the first limiting plate. A connecting sleeve is provided outside the driven gear, and a second flange is provided on the connecting sleeve. A first flange is provided on the outer side wall of the driving gear. When the knob forms a first connection state relative to the base, the first flange snaps into the second flange of the connecting sleeve. When the knob forms a second connection state relative to the base, the first flange disengages from the second flange of the connecting sleeve.

[0018] Further, two rope passing holes penetrating through the winding post are provided on the second limiting plate, and two through holes are provided on the outer cylinder body of the base.

[0019] Furthermore, a snap connection is provided between the knob and the base. A first snap portion is provided on the inner side wall of the knob, and a second snap portion cooperating with the first snap portion is provided on the outer cylindrical body of the base.

[0020] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and the accompanying drawings. The best embodiments or means of the present application will be shown in detail in combination with the drawings, but it is not a limitation to the technical solution of the present application. In addition, these features, elements, and components that appear in each of the following texts and drawings are multiple, and different symbols or numbers are marked for convenience of representation, but all represent components with the same or similar structures or functions. Description of the Drawings

[0021] The present application will be further described below with reference to the accompanying drawings:

[0022] Figure 1 Schematic diagram of the usage state of the cord adjustment device of this embodiment;

[0023] Figure 2 Exploded view of a cord adjustment device provided in this embodiment;

[0024] Figure 3 For Figure 2 Cross-sectional schematic diagram;

[0025] Figure 4 Schematic diagram of a knob structure of this embodiment (ratchet not installed);

[0026] Figure 5 Schematic diagram of a knob structure of this embodiment (ratchet installed);

[0027] Figure 6 For Figure 5 Cross-sectional schematic diagram;

[0028] Figure 7 Schematic diagram of a base structure of this embodiment (spool installed);

[0029] Figure 8 Schematic diagram of another base structure of this embodiment (spool not installed);

[0030] Figure 9 Schematic diagram of a base structure of this embodiment (spool installed);

[0031] Figure 10 Cross-sectional schematic diagram of the cord adjustment device of this embodiment (first state);

[0032] Figure 11 Another cross-sectional schematic diagram of the cord adjustment device of this embodiment (second state).

[0033] Among them, 10 is a knob; 11 is a knob cover; 12 is a first clamping member; 101 is a driving gear; 1011 is a first flange; 102 is a first clamping portion; 111 is an anti-slip pattern; 20 is a ratchet; 21 is a ratchet pawl; 22 is a second clamping member; 30 is a spool; 31 is a first limiting plate; 32 is a second limiting plate; 33 is a winding post; 311 is a driven gear; 312 is a connecting sleeve; 321 is a rope-passing hole; 3121 is a second flange; 40 is a base; 41 is a bottom plate; 42 is an outer cylinder; 411 is a sewing connection portion; 412 is a bottom plate hole; 421 is a through hole; 422 is a locking tooth; 423 is a second clamping portion; 50 is a cord. Detailed implementation manners

[0034] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. Based on the embodiments in the implementation manners, it is intended to explain the present application and should not be construed as a limitation to the present application.

[0035] As used herein, the phrase "in one embodiment" or "instance" or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself may be included in at least one embodiment disclosed in the present application. The appearance of the phrase "in one embodiment" at various positions in the specification does not necessarily refer to the same embodiment.

[0036] Such as Figures 1-11As shown in the figure, a cord adjustment device includes a base 40 and a knob 10. The base 40 forms an installation chamber that is open at one end. The knob 10 is arranged at the opening of the installation chamber of the base 40. A spool 30 for winding a cord 50 is arranged in the installation chamber. An active gear 101 extending towards the interior of the installation chamber of the base 40 is arranged on the inner top wall of the knob 10. A driven gear 311 that cooperates with the active gear 101 is arranged on the spool 30. The base 40 includes a bottom plate 41 and an outer cylinder 42 located on the bottom plate 41. A through hole 421 for the cord 50 to pass through is arranged on the side wall of the outer cylinder 42. The outer cylinder 42 divides the bottom plate 41 into an inner circle of the bottom plate and an outer circle of the bottom plate. A sewing connection part 411 is arranged on the bottom plate 41 (outer circle of the bottom plate) outside the outer cylinder 42. A bottom plate hole 412 for the cord 50 to penetrate into the outer cylinder 42 is arranged on the bottom plate 41 (inner circle of the bottom plate) inside the outer cylinder 42. The bottom plate hole 412 communicates with the through hole 421. As a preferred embodiment, two through holes 421 are symmetrically arranged on the side wall of the outer cylinder 42. During use, first pass the cord 50 into the cord adjustment device through the bottom plate hole 412 on the bottom plate 41, and then pass the two ends of the cord 50 through the two through holes 421 on the side wall of the outer cylinder 42 respectively, so that the cord 50 is clamped on the spool 30. Through the cooperation of the active gear 101 arranged on the knob 10 and the driven gear 311 arranged on the spool 30, when the knob 10 rotates, it drives the spool 30 to rotate. When the spool 30 rotates, it winds the cord 50 around the spool 30 to shorten the length of the part of the cord 50 that extends out of the cord adjustment device at both ends, or loosens the cord 50 wound around the spool 30 to extend the length of the part of the cord 50 that extends out of the cord adjustment device at both ends, thereby achieving the effect of adjusting the length of the cord 50. In this embodiment, by respectively arranging the through hole 421 and the bottom plate hole 412 on the outer cylinder 42 and the inner circle of the bottom plate 41 of the base 40 and connecting the through hole 421 and the bottom plate hole 4, after the cord adjustment device is assembled, the two ends of the cord 50 can be passed through the bottom plate hole 412 and passed out through the through holes 421 on both sides respectively, realizing the operation of loading the cord 50 into the cord adjustment device from the bottom of the base 40, making the operation of loading the cord 50 into the cord adjustment mechanism more convenient and fast. By arranging the sewing connection part 411 on the bottom plate 41 (outer circle of the bottom plate) outside the outer cylinder 42, it is convenient to fixedly connect the cord adjustment device to an external textile by sewing through the sewing connection part 411.

[0037] As Figure 1 、 3, as shown in Figures 4 or 5, a knob cover 11 is provided outside the knob 10, and anti-slip lines 111 are provided on the outer side wall of the knob cover 11. In this embodiment, the anti-slip lines 111 are provided as anti-slip rib strips arranged in the vertical direction. In other embodiments, the anti-slip lines 111 can also be provided as staggered anti-slip stripes or other anti-slip structures that are beneficial to preventing relative sliding between the hand and the knob cover 11 when rotating the knob 10.

[0038] In some embodiments, the knob 10 and the knob cover 11 are provided as an integral structure, that is, the knob 10 and the knob cover 11 are made by an integral casting method. In other embodiments, the knob 10 and the knob cover 11 are provided as a split structure, and the knob 10 and the knob cover are fixedly connected. In some embodiments, the knob 10 and the knob cover 11 are fixed by at least one of the connection methods of snap connection, threaded connection or welding.

[0039] As Figure 2 , 3 , as shown in Figure 5, a ratchet 20 is provided on the inner top wall of the knob 10, at least one ratchet pawl 21 is provided on the ratchet 20, and a plurality of teeth 422 that can be engaged with the ratchet pawl 21 are provided on the inner side wall of the outer cylinder 42. The plurality of teeth 422 are annularly distributed on the inner side wall of the outer cylinder 42. When the teeth 422 are engaged with the ratchet pawl 21, the knob 10 is prevented from rotating in the first direction or the second direction, and the first direction and the second direction are opposite to each other. As an exemplary illustration, in this embodiment, 3 ratchet pawls 21 are evenly distributed on the circumference of the ratchet 20. The ratchet pawl 21 cooperates with the teeth 422 annularly distributed on the inner side wall of the outer cylinder 42 to limit the rotation of the knob 10 in the first direction or the second direction. That is, when the ratchet pawl 21 and the teeth 422 are engaged with each other, the knob 10 can only rotate in one direction of clockwise or counterclockwise. The specific limiting direction is determined by the setting direction of the tooth parts of the ratchet pawl 21 and the teeth 422.

[0040] As Figure 10 , 11 shown, a first connection state as shown in Figure 10 is formed between the knob 10 and the base 40, and as shown in Figure 11The second connection state shown; when the knob 10 forms a first connection state relative to the base 40, the driving gear cooperates with the driven gear, the ratchet pawl 21 engages with the teeth 422, and the spool 30 rotates in one of a first direction or a second direction driven by the knob 10; when the knob 10 forms a second connection state relative to the base 40, the driving gear is separated from the driven gear, the ratchet pawl 21 is separated from the teeth 422, the spool 30 can rotate in a direction opposite to the first connection state under the action of the cord 50, and the knob 10 can rotate freely in the first direction and the second direction. Through the first connection state formed between the knob 10 and the base 40, the knob 10 can drive the spool 30 to rotate in one direction, thereby winding the cord 50 around the spool 30; through the second connection state formed between the knob 10 and the base 40, the rotation is separated from the spool 30, and then the spool 30 can be rotated in the direction opposite to the winding direction of the cord 50 by pulling the cord 50, so that the cord 50 wound around the spool 30 is loosened, so as to adjust the length of the two protruding parts of the cord 50 at both ends.

[0041] As Figure 4 , 5 , 6 shows that the ratchet 20 and the knob 10 are set to be snap-connected. A first snap member 12 is provided on the inner top wall of the knob 10, and a second snap member 22 is provided on the ratchet 20 and is matched with the first snap member 12. The ratchet 20 is fixed on the inner top wall of the knob 10 by the snap connection of the first snap member 12 and the second snap member 22. In this embodiment, the first snap member 12 and the second snap member 22 are set as a pair of relatively arranged hooks. In other embodiments, it can also be set as a snap connection such as hook-slot cooperation. The specific snap connection method of the ratchet 20 and the knob 10 is not limited in this embodiment.

[0042] As Figure 2 , 3As shown in FIGS. 7, 10, and 11, the spool 30 includes a first limiting plate 31, a second limiting plate 32, and a winding post 33. The winding post 33 is located between the first limiting plate 31 and the second limiting plate 32. The driven gear 311 is located on the first limiting plate 31. A connecting sleeve 312 is arranged outside the driven gear 311. A second flange 3121 is arranged on the connecting sleeve 312. A first flange 1011 is arranged on the outer side wall of the driving gear 101. When the knob 10 forms a first connection state relative to the base 40, the first flange 1011 is snapped into the second flange 3121 of the connecting sleeve 312. When the knob 10 forms a second connection state relative to the base 40, the first flange 1011 disengages from the second flange 3121 of the connecting sleeve 312. By matching the first flange 1011 provided on the knob 10 with the second flange 3121 provided on the spool 30, the engagement or separation of the spool 30 and the knob 10 can be realized. By pressing the knob 10 towards the base 40, the first flange 1011 on the knob 10 can be snapped into the second flange 3121 on the spool 30, so that the knob 10 is engaged with the spool 30. By pulling the knob 10 outwards, the first flange 1011 on the knob 10 can be disengaged from the second flange 3121 of the spool 30, that is, the separation of the knob 10 and the spool 30 is realized.

[0043] As Figure 9 shown, two rope-passing holes 321 penetrating through the winding post 33 are arranged on the second limiting plate 32, and two through holes 421 are arranged on the outer cylinder 42 of the base 40. Both ends of the rope belt 50 are passed through the rope-passing holes 321 into the rope belt adjusting device, and both ends of the rope belt 50 are passed out from the two through holes 421, so that the middle part of the rope belt 50 is snapped into the winding post 33. When the winding post 33 rotates following the spool 30, the rope belt 50 can be gradually wound around the winding post 33. In this embodiment, the two rope-passing holes 321 are symmetrically arranged on the second limiting plate 32, and the two through holes 421 are also symmetrically arranged on the outer cylinder 42. In other embodiments, the positions of the two rope-passing holes 321 on the second limiting plate 32 can be set arbitrarily, as long as the two rope-passing holes penetrate through the winding post 33 and the rope belt 50 can be snapped on the winding post 33 when the rope belt 50 is passed through. Similarly, the positions of the two through holes 421 arranged on the outer cylinder 42 can also be set arbitrarily, as long as both ends of the rope belt 50 can be respectively passed out from one through hole 421.

[0044] As Figure 3 、 5As shown in FIGS. 7, 10, and 11, a snap connection is provided between the knob 10 and the base 40. A first snap portion 102 is provided on the inner side wall of the knob 10, and a second snap portion 423 that cooperates with the first snap portion 102 is provided on the outer cylinder 42 of the base 40. In this embodiment, the first snap portion 102 and the second snap portion 423 are provided as a pair of opposing hooks. In other embodiments, the first snap portion 102 and the second snap portion 423 can be provided as any other snap connection structure such as a hook-slot cooperation. In some embodiments, the snap connection of the first snap portion 102 or the second snap portion 423 further includes a first snap state and a second snap state. When the first snap portion 102 and the second snap portion 423 form the first snap state, a first connection state is formed between the base 40 and the knob 10. When the first snap portion 102 and the second snap portion 423 form the second snap state, a second connection state is formed between the base 40 and the knob 10.

[0045] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. A cord adjustment device, comprising a base (40) and a knob (10). The base (40) is formed with an installation chamber that is open at one end. The knob (10) is disposed at the opening of the installation chamber of the base (40). A spool (30) for winding a cord (50) is disposed in the installation chamber. A driving gear (101) extending towards the interior of the installation chamber of the base (40) is disposed on the inner top wall of the knob (10). A driven gear (311) that cooperates with the driving gear (101) is disposed on the spool (30). It is characterized in that, The base (40) includes a bottom plate (41) and an outer cylinder (42) located on the bottom plate (41). A through hole (421) for the cord (50) to pass through is provided on the side wall of the outer cylinder (42). A bottom plate hole (412) for the cord (50) to penetrate into the base (40) is provided on the bottom plate, and the bottom plate hole (412) communicates with the through hole (421).

2. The cord adjusting device according to claim 1, wherein A sewing connection part (411) is further provided on the bottom plate (41), and the sewing connection part (411) is located outside the outer cylinder (42).

3. The cord adjustment device according to claim 1, characterized in that, A knob cover (11) is sleeved outside the knob (10), and anti-slip lines (111) are provided on the outer side wall of the knob cover (11).

4. The cord adjusting device according to claim 3, wherein The knob (10) and the knob cover (11) are of an integral structure.

5. The cord adjustment device according to claim 3, characterized in that, The knob (10) and the knob cover (11) are of a split structure, and the knob (10) and the knob cover (11) are fixedly connected.

6. The cord adjustment device according to any one of claims 1 to 5, characterized in that, A ratchet (20) is provided on the inner top wall of the knob (10), and at least one ratchet pawl (21) is provided on the ratchet (20). A number of teeth (422) that can engage with the ratchet pawl (21) are provided on the inner side wall of the outer cylinder (42). The a number of teeth (422) are annularly distributed on the inner side wall of the outer cylinder (42). When the teeth (422) are engaged with the ratchet pawl (21), the knob (10) is prevented from rotating in a first direction or a second direction, and the first direction and the second direction are opposite to each other.

7. The cord adjustment device according to claim 6, characterized in that, A first connection state and a second connection state are formed between the knob (10) and the base (40). When the knob (10) forms a first connection state relative to the base (40), the driving gear is engaged with the driven gear, the ratchet pawl (21) is engaged with the teeth (422), and the spool (30) rotates in one of the first direction or the second direction driven by the knob (10). When the knob (10) forms a second connection state relative to the base (40), the driving gear is separated from the driven gear, the ratchet pawl (21) is separated from the teeth (422), the spool (30) can rotate in a direction opposite to the first connection state under the action of the cord (50), and the knob (10) can rotate freely in the first direction and the second direction.

8. The cord adjusting device according to claim 6, characterized in that, The ratchet (20) and the knob (10) are in a snap connection. A first snap member (12) is provided on the inner top wall of the knob (10), and a second snap member (22) that cooperates with the first snap member (12) is provided on the ratchet (20).

9. The cord adjustment device according to claim 7, characterized in that, The spool (30) includes a first limiting plate (31), a second limiting plate (32) and a winding column (33). The winding column (33) is located between the first limiting plate (31) and the second limiting plate (32). The driven gear (311) is located on the first limiting plate (31). A connecting sleeve (312) is arranged outside the driven gear (311). A second flange (3121) is arranged on the connecting sleeve (312). A first flange (1011) is arranged on the outer wall of the driving gear (101). When the knob (10) forms a first connection state relative to the base (40), the first flange (1011) is snapped into the second flange (3121) of the connecting sleeve (312). When the knob (10) forms a second connection state relative to the base (40), the first flange (1011) disengages from the second flange (3121) of the connecting sleeve (312).

10. The cord adjustment device according to claim 9, characterized in that, Two rope passing holes (321) penetrating through the winding column (33) are arranged on the second limiting plate (32). Two through holes (421) are arranged on the outer cylinder body (42) of the base (40).

11. The cord adjustment device according to any one of claims 1 to 5, characterized in that, A snap connection is provided between the knob (10) and the base (40). A first snap connection portion (102) is arranged on the inner side wall of the knob (10). A second snap connection portion (423) cooperating with the first snap connection portion (102) is arranged on the outer cylinder body (42) of the base (40).

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