Novel automatic lacing device

Abstract

The utility model relates to the field of lacing knob loosening and tightening, in particular to a novel automatic lacing device which comprises a cover body, a main body, a non-return mechanism, a winding wheel and a base, the non-return mechanism is arranged on the upper end face of the main body, the cover body is movably connected and matched with the non-return mechanism in a mode of covering the main body, the winding wheel is rotatably arranged in the main body, and the main body is arranged on the base. The cover body and the coiling wheel can be switched between connection or separation, and the non-return mechanism is used for non-return of the cover body when the cover body and the coiling wheel are connected; a spring mechanism used for being connected with the coiling wheel to achieve resetting of the coiling wheel is arranged in the base or at the position of the main body, the spring mechanism comprises a volute spiral spring, the volute spiral spring is provided with a first end connected to the base or the main body and a second end connected to the coiling wheel, and the volute spiral spring is made of non-magnetic materials. The technical problem that in the prior art, a lacing device is provided with a coil spring made of a magnetic metal material, so that a needle inspection machine triggers alarm, and production cannot be carried out according to a normal needle inspection technological process is solved.

Description

Technical Field

[0001] This utility model relates to the field of belt tightening knobs, and more particularly to a novel automatic belt tightening device. Background Technology

[0002] Currently, most footwear, apparel, and bag products undergo sewing processes. To prevent broken needles from falling into the product and causing harm to customers after sale, a needle inspection machine is used. The machine works by triggering an alarm when magnetic materials pass through it, indicating that the product is abnormal and needs to be removed for inspection.

[0003] A device for automatically retracting shoelaces is provided. When applied to shoes, the device can automatically retract the shoelaces. To achieve the automatic retraction function, the device is equipped with a coil spring mechanism, such as the shoelace device disclosed in Chinese Patent Publication No. CN117413997A.

[0004] To meet performance requirements, coil springs are often made of magnetic metal materials, which causes the lacing device to trigger an alarm when it is installed on a shoe and subjected to a needle inspection, making it impossible to produce according to the normal needle inspection process. Utility Model Content

[0005] Therefore, in view of the above problems, this utility model proposes a new type of automatic strapping device, which solves the technical problem that the strapping device in the prior art has a coiled spring made of magnetic metal material, which causes the needle detector to trigger an alarm and makes it impossible to produce according to the normal needle detection process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel automatic belt fastening device, comprising a cover, a main body, a backstop mechanism, a winding wheel, and a base. The backstop mechanism is disposed on the upper surface of the main body. The cover is movably connected and cooperates with the backstop mechanism by covering the main body. The winding wheel is rotatably disposed inside the main body. The main body is disposed on the base.

[0007] The cover and the winding reel can be switched between being connected or separated, and the anti-reverse mechanism is used to prevent the cover from reversing when the cover and the winding reel are connected.

[0008] The base or main body is provided with a spring mechanism for connecting the winding reel to achieve winding resetting. The spring mechanism includes a spiral spring, which has a first end connected to the base or main body and a second end connected to the winding reel. The spiral spring is made of non-magnetic material.

[0009] Furthermore, the spiral spring is any one of copper, aluminum, or non-magnetic stainless steel.

[0010] Furthermore, the base is provided with a mounting cavity, and a mounting post is provided at the center of the mounting cavity. The mounting post is provided with two or more inclined teeth. The first end of the spiral spring is movably connected to the inclined teeth, and when the spiral spring is subjected to a force exceeding the rated value, the first end of the spiral spring disengages from the inclined teeth.

[0011] Furthermore, a rotating disk is provided on the spiral spring, and the rotating disk is movably connected and cooperates with the winding wheel to realize the unidirectional rotation of the winding wheel by the rotating disk.

[0012] Furthermore, the first end is an inwardly bent, elastic hook shape.

[0013] Furthermore, the first end includes an inwardly curved first arc segment and an outwardly curved second arc segment. The first arc segment is used to cooperate with the toothed claw to achieve connection, and the second arc segment is used to easily detach from the toothed claw when the first arc segment deforms, and to quickly engage with the next toothed claw after detachment.

[0014] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0015] 1. In this solution, a spiral spring made of non-magnetic material is used to effectively ensure that shoes with lacing devices can pass through the needle detector, guaranteeing the smooth operation of the normal needle detection process. This avoids adjustments to the process due to the lacing device, effectively improving convenience. Furthermore, the spiral spring has a first end connected to the base and a second end connected to the winding reel, achieving better connection stability and resulting in a faster response speed between the winding reel and the spiral spring.

[0016] 2. The spiral spring is made of any one of copper, aluminum, or non-magnetic stainless steel. This ensures optimal elastic performance while maintaining the material's non-magnetic properties and keeping costs low.

[0017] 3. The rotating disc allows for unidirectional rotation drive with the winding reel. This ensures better compatibility and prevents damage to the spiral spring due to excessive rotation of the winding reel.

[0018] 4. By using the toothed design, combined with the elastic hook-like design of the first segment of the spiral spring, the spiral spring can more effectively protect itself when subjected to excessive external force, jumping from the first toothed pawl to the second toothed pawl, and this cycle can be achieved. Furthermore, utilizing the inwardly curved first arc segment and the outwardly curved second arc segment, the first arc segment is used to engage with the toothed pawl for connection, while the second arc segment is designed to easily disengage from the toothed pawl when the first arc segment deforms, and to quickly engage with the next toothed pawl after disengagement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is an exploded structural diagram of the present invention.

[0021] Figure 3 This is an exploded structural diagram from another perspective of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the spiral spring and the base.

[0023] Figure 5 This is a schematic diagram of the structure in which the mounting post mates with the first end of the spiral spring.

[0024] Figure 6 This is a schematic diagram of a spiral spring.

[0025] Figure label:

[0026] 1. Cover; 2. Main body; 3. Anti-reverse mechanism; 4. Winding reel; 41. Snap-fit ​​groove; 5. Base; 51. Mounting cavity; 52. Mounting post; 521. Toothed claw; 6. Spiral spring; 61. First end; 611. First arc segment; 612. Second arc segment; 62. Second end; 621. Snap-fit ​​protrusion; 7. Rotating disk; 71. Snap-fit ​​plate; 72. Snap-fit ​​part. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0028] refer to Figures 1 to 6 This embodiment provides a novel automatic belt fastening device, including a cover 1, a main body 2, a reverse-locking mechanism 3, a winding wheel 4, and a base 5. The reverse-locking mechanism 3 is disposed on the upper surface of the main body 2. The cover 1 is movably connected to the reverse-locking mechanism 3 by covering the main body 2. The winding wheel 4 is rotatably disposed inside the main body 2. The main body 2 is disposed on the base 5. The cover 1 and the winding wheel 4 can be switched between being connected or separated. The reverse-locking mechanism 3 is used to prevent the cover 1 from reversing when it is connected to the winding wheel 4.

[0029] The structure described above is a conventional technical means in this field, and a corresponding disclosure has been made in a strapping device disclosed in Chinese Patent Publication No. CN117413997A.

[0030] The base 5 has a mounting cavity 51, and the mounting cavity 51 is equipped with a spring mechanism for resetting the winding reel 4. The spring mechanism includes a spiral spring 6, which has a first end 61 connected to the base 5 and a second end 62 connected to the winding reel 4. The spiral spring 6 is made of a non-magnetic material. Preferably, the spiral spring 6 is made of copper, aluminum, or non-magnetic stainless steel.

[0031] A rotating disk 7 is mounted on the spiral spring 6. The rotating disk 7 is movably connected to the winding reel 4 to drive the unidirectional rotation of the winding reel 4. The rotating disk 7 is equipped with a locking plate 71, and the lower end of the winding reel 4 has a locking groove 41. Driven by the engagement of the locking plate 71 and the locking groove 41, the locking plate 71 is inclined and protruding. Figure 1 As shown, when the rotating disk 7 rotates counterclockwise, or the winding wheel 4 rotates clockwise, the rotating disk 7 and the winding wheel 4 cannot achieve a transmission connection. The rotating disk 7 is provided with a locking part 72 that engages with the spiral spring 6, and the second section is provided with a locking protrusion 621 that engages with the locking part 72.

[0032] Of course, the rotating disk 7 can be omitted, in which case the spiral spring 6 is directly connected to the lower end of the winding reel 4. The drawback of this is that when the winding reel 4 rotates and causes the spiral spring 6 to stretch or coil beyond its limit, the spiral spring 6 is prone to damage, leading to damage to the entire belt-connecting device. Although the probability of this happening is small, the risk still exists.

[0033] A mounting post 52 is provided at the center of the base 5. The mounting post 52 has two or more inclined toothed claws 521. The first end 61 of the spiral spring 6 is movably connected to the inclined toothed claw 521. When the spiral spring 6 is subjected to a force exceeding its rated value, the first end 61 of the spiral spring 6 disengages from the inclined toothed claw 521. The first end 61 is an inwardly bent elastic hook. The first end 61 includes an inwardly bent first arc-shaped segment 611 and an outwardly bent second arc-shaped segment 612. The first arc-shaped segment 611 is used to cooperate with the toothed claw 521 to achieve connection. The second arc-shaped segment 612 is designed to easily disengage from the toothed claw 521 when the first arc-shaped segment 611 deforms, and to quickly engage with the next toothed claw 521 after disengagement.

[0034] The aforementioned spiral spring is located within the base. However, the spiral spring can also be installed within or on the main body, as shown in Chinese Patent Publication No. CN222042266U, which discloses a cable winding and unwinding device and an article containing it, where the spiral spring is located in a recessed portion above the main body. Correspondingly, the spiral spring can also be located below the main body. In other words, the main purpose of the spiral spring is to provide elastic drive to the winding reel. When the reel winds the cable and pulls it outward, the reel rotates, driving the spiral spring to store energy. When the cable is released, the elasticity of the spiral spring causes the reel to rotate, winding the cable and automatically retrieving it. Therefore, the location of the spiral spring is not critical, but it must be connected to the winding reel. It is typically located above, below, inside, or outside the circumference of the winding reel. Furthermore, the spiral spring can actually be replaced with other elastic mechanisms that can achieve automatic retraction and rotation of the winding reel.

[0035] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A novel automatic belt fastening device, comprising a cover, a main body, a backstop mechanism, a winding wheel, and a base, wherein the backstop mechanism is disposed on the upper surface of the main body, the cover is movably connected and cooperates with the backstop mechanism by covering the main body, the winding wheel is rotatably disposed inside the main body, and the main body is disposed on the base; The cover and the winding reel can be switched between being connected or separated, and the anti-reverse mechanism is used to prevent the cover from reversing when the cover and the winding reel are connected. Its features are: The base or main body is provided with a spring mechanism for connecting the winding reel to achieve winding resetting. The spring mechanism includes a spiral spring, which has a first end connected to the base or main body and a second end connected to the winding reel. The spiral spring is made of non-magnetic material.

2. The novel automatic belt-tying device according to claim 1, characterized in that: The spiral spring is made of any one of copper, aluminum, or non-magnetic stainless steel.

3. The novel automatic belt-tying device according to claim 1, characterized in that: The base has a mounting cavity, and a mounting post is located at the center of the mounting cavity. The mounting post has two or more inclined teeth. The first end of the spiral spring is movably connected to the inclined teeth, and when the spiral spring is subjected to a force exceeding the rated value, the first end of the spiral spring disengages from the inclined teeth.

4. A novel automatic belt-tying device according to claim 3, characterized in that: A rotating disk is provided on the spiral spring, and the rotating disk is movably connected and cooperates with the winding wheel to realize the unidirectional rotation of the winding wheel by the rotating disk.

5. A novel automatic belt-tying device according to claim 3, characterized in that: The first end is an inwardly bent, elastic hook.

6. A novel automatic belt-tying device according to claim 5, characterized in that: The first end includes an inwardly curved first arc segment and an outwardly curved second arc segment. The first arc segment is used to cooperate with the toothed claw to achieve connection, and the second arc segment is used to easily detach from the toothed claw when the first arc segment deforms, and to quickly engage with the next toothed claw after detachment.

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