Invisible puller with bow-shaped elastic piece and zipper

Abstract

The invisible pull head comprises a pull head body, the pull head body comprises a lower wing plate, a side plate and an upper wing plate, a separation column is arranged on the lower wing plate, a pull piece is hinged to the top of the separation column, a Y-shaped channel is formed among the separation column, the lower wing plate, the side plate and the upper wing plate, a mounting hole is formed in the top of the separation column, and the mounting hole is higher than the upper wing plate. A cloth passing space is formed between the zipper pull and the upper side of the upper wing plate when the zipper pull is horizontally placed; the separation column is provided with a front convex part, and the front convex part is internally provided with a bow-shaped accommodating cavity and a bow-shaped elastic sheet; and the mounting hole is close to the front convex part, so that the mounting hole and the upper wing plate are staggered. On one hand, a cloth passing space is formed between the pull piece and the upper wing plate by lifting the mounting position of the pull piece; and on the other hand, the rotating shaft of the pull tab and the upper wing plate are staggered in a mode that the mounting hole deviates towards the front convex part, so that the rotating shaft of the pull tab is prevented from being propped against the cloth belt, and the movement of the invisible pull head is smoother.

Description

Technical Field

[0001] This utility model belongs to the field of zippers, specifically relating to an invisible zipper pull and zipper with an arc-shaped spring. Background Technology

[0002] Zippers, as a quick-closing tool, are commonly used on clothing. They typically consist of a zipper pull and a zipper strap. The zipper pull causes the zipper strap to separate or engage, allowing for quick opening or closing of the garment. Some existing zippers use concealed zipper pulls, which improve the aesthetics of the zipper when closed by hiding the pull tab behind the zipper strap. While most existing concealed zipper pulls are designed to prevent accidental slippage, the pivot of most existing locking concealed zipper pulls, when engaged with the zipper strap, can press against the zipper strap, causing the zipper pull to slip and get stuck.

[0003] In the prior art, such as the patent document with publication number CN204467142U, a concealed zipper pull is disclosed, including a zipper base, a code hook, an elastic element, and a pull tab. The code hook is installed on the zipper base; the elastic element is installed between the tail of the zipper base and the tail of the code hook; the pull tab is connected to the code hook, and the length of the front end of the pull tab located between the code hook and the zipper base is greater than the distance between the inner side of the code hook and the upper surface of the zipper base; the zipper base has a locking hole to accommodate the end of the code hook, and the elastic element is always in a compressed state.

[0004] The aforementioned existing technology unlocks the concealed zipper pull by lifting the code hook with a pull tab. However, in order to ensure the stability of the pull tab when it is pulled, the pivot of the pull tab is installed relatively close to the pull base. This causes the pivot of the pull tab to press against the fabric tape after the concealed zipper pull is unlocked, which can easily cause the concealed zipper pull to get stuck when sliding. Summary of the Invention

[0005] To address the problems in existing technologies, this utility model proposes a concealed zipper pull and zipper with an arc-shaped spring tab. On the one hand, by raising the installation position of the zipper tab, a fabric passage space is formed between the zipper tab and the upper wing plate when the zipper tab is laid flat, preventing the zipper tab's pivot from pressing against the fabric tape. On the other hand, by offsetting the mounting hole to the forward protrusion, the pivot of the zipper tab is misaligned with the upper wing plate, further preventing the pivot of the zipper tab from pressing against the fabric tape, making the movement of the concealed zipper pull smoother.

[0006] This utility model is implemented as follows: a concealed zipper pull with an arc-shaped spring clip includes a zipper pull body, the zipper pull body includes a lower wing plate, the lower wing plate is provided with a separation post, the top of the separation post is hinged with a pull tab, the lower wing plate also has upwardly extending side plates on both sides, the top of the side plates are folded inward and extended to form symmetrically arranged upper wing plates, a Y-shaped channel is formed between the separation post, the lower wing plate, the side plates and the upper wing plate, and a gap adapted to the Y-shaped channel is formed between the symmetrically arranged upper wing plates and the separation post to allow the chain teeth of the chain to pass through and enter the Y-shaped channel;

[0007] The top of the separating column is provided with a mounting hole adapted to the pull tab. The mounting hole is higher than the upper wing plate, so that when the pull tab is laid flat, a fabric passage space is formed between it and the upper wing plate. The fabric passage space is used for the fabric of the chain belt to pass through. Since the mounting hole is higher than the upper wing plate, a height difference is formed between the pivot of the pull tab and the upper wing plate. The fabric passage space formed by the height difference can prevent the pivot of the pull tab from abutting against the fabric, thereby preventing the pivot of the pull tab from pressing against the fabric and causing the invisible zipper to jam when sliding.

[0008] The separating column extends away from the Y-shaped channel, forming a forward protrusion. This increases the height of the mounting hole, lengthening the turning arm when the concealed zipper is pulled, increasing the turning torque of the concealed zipper, and increasing the turning angle of the concealed zipper, thereby reducing the balance when the concealed zipper is pulled. The outwardly extending forward protrusion requires the concealed zipper to overcome greater resistance when turning, thus balancing the increased turning torque and ensuring the convenience of sliding the concealed zipper.

[0009] The protruding part has a first cavity, and the separating column has a second cavity. The first cavity and the second cavity open upward and are interconnected to form an arc-shaped cavity. The arc-shaped cavity has a locking hole that connects the arc-shaped cavity and the Y-shaped channel. The arc-shaped cavity also has an arc-shaped spring piece that elastically abuts against the pivot of the pull tab.

[0010] The mounting hole is close to the front protrusion, so that after the pull tab is installed, the rotation axis of the pull tab and the projection of the upper wing plate on the plane where the lower wing plate is located do not overlap. This causes the rotation axis of the pull tab to be misaligned with the upper wing plate, allowing the concealed zipper to be compatible with thicker fabric tape and improving the versatility of the concealed zipper.

[0011] Preferably, the bow-shaped spring abuts against the rotating shaft of the pull tab from top to bottom. The rotating shaft is provided with a driving part adapted to the bow-shaped spring. One end of the bow-shaped spring extends from the lock hole into the Y-shaped channel to form a locking tongue. When the pull tab rotates to a specific angle, the locking tongue retracts from the Y-shaped channel. The locking tongue is used for self-locking of the concealed zipper head to prevent accidental slippage. Unlocking the concealed zipper head only at a specific angle increases the locking range of the concealed zipper head, preventing accidental triggering of the pull tab and thus preventing the concealed zipper head from unlocking, further improving the self-locking effect of the concealed zipper head. When the pull tab starts to rotate from a flat position, the driving part gradually raises the bow-shaped spring, driving the locking tongue to gradually retract from the Y-shaped channel. When the pull tab rotates to the specific angle, the locking tongue completely retracts from the Y-shaped channel. When the pull tab continues to rotate, the locking tongue gradually extends into the Y-shaped channel. By gradually moving the bolt into and out of the Y-shaped channel, the instantaneous deformation of the bolt during entry and exit is reduced, thereby reducing the wear of the bow-shaped spring and increasing its service life.

[0012] Specifically, the specific angle is 90° between the pull tab and the flat position, so that the driving force required for the pull tab to drive the concealed zipper to slide back and forth is similar or equal, thereby preventing the concealed zipper from getting stuck due to excessive difference in driving force, and thus improving the smoothness of the concealed zipper sliding.

[0013] Specifically, the bow-shaped spring includes a sequentially arranged anti-disengagement part, a pressing part, and a tail. The anti-disengagement part is shaped like a "7" and engages with the bow-shaped cavity. The pressing part is cap-shaped and presses against the rotating shaft from top to bottom. The tail includes a laterally arranged limiting section and a longitudinally arranged locking section. The limiting section abuts against the bow-shaped cavity, and the end of the locking section forms the locking tongue. The limiting section can limit the length of the locking tongue extending into the Y-shaped channel, preventing the pressing part from bending and deforming after prolonged use, which would increase the length of the locking tongue extending into the Y-shaped channel and thus prevent the concealed zipper from unlocking, thereby improving the reliability of the bow-shaped spring. Because the mounting hole is offset towards the protruding part, the distance between the pivot of the pull tab and the lock hole increases, making it difficult for conventional bow-shaped springs to fit. The horizontally arranged springs can compensate for the increased distance between the pivot of the pull tab and the lock hole by extending laterally without affecting the self-locking function of the bow-shaped springs, thus making the bow-shaped springs fit the pull head body.

[0014] Specifically, the bow-shaped cavity is further provided with a connecting hole corresponding to the anti-dislodgement part. The connecting hole connects the bow-shaped cavity to the outside, allowing the bow-shaped spring to enter the bow-shaped cavity. The bow-shaped spring passes through the connecting hole and the locking hole in sequence, so that the connecting hole and the locking hole respectively lock the two ends of the bow-shaped spring, preventing the bow-shaped spring from moving back and forth and improving the stability of the bow-shaped spring.

[0015] Specifically, the anti-disengagement part is also provided with a limiting boss. When the bow-shaped spring enters the bow-shaped cavity, the limiting boss abuts against the end face of the communicating hole. The limiting boss is used to prevent the anti-disengagement part from moving upward, so that under the drive of the pull tab shaft, only the locking tongue moves upward, thereby causing the bow-shaped spring to undergo elastic deformation, providing the power for the locking tongue to reset, so that the pull tab automatically locks itself after rotating through a specific angle, improving the reliability of the bow-shaped spring.

[0016] Specifically, the bow-shaped cavity is further provided with a locking protrusion adapted to the anti-detachment part. When the bow-shaped spring is installed in the bow-shaped cavity, the locking protrusion elastically engages with the anti-detachment part and abuts against the wall of the connecting hole. The locking protrusion prevents the anti-detachment part from dislodging from the bow-shaped cavity, thus improving the reliability of the anti-detachment part; when the anti-detachment part abuts against the wall of the connecting hole, it prevents the anti-detachment part from shaking, thus improving the stability of the anti-detachment part.

[0017] As an equivalent alternative, the bow-shaped spring abuts against the pivot of the pull tab from top to bottom. The pivot is provided with a driving part adapted to the bow-shaped spring, and one end of the bow-shaped spring abuts against the end face of the lock hole. The bow-shaped spring includes an anti-disengagement part, a pressing part, and a tail, arranged sequentially. The anti-disengagement part is in the shape of a "7" and engages with the bow-shaped cavity. The pressing part is cap-shaped and abuts against the pivot from top to bottom. The tail is L-shaped and abuts against the end face of the lock hole. When the tail is L-shaped, the concealed zipper no longer has a self-locking function, making the concealed zipper suitable for scenarios where self-locking is not required, thus improving the applicability of the concealed zipper.

[0018] Preferably, the protruding part is also provided with a limiting groove corresponding to the Y-shaped channel. The limiting groove is provided on both sides of the separating column. When the separated chain enters the Y-shaped channel, the limiting groove restricts the amplitude of the chain swinging up and down, preventing the chain from swinging up and down too much, which would cause the chain to collide when entering the Y-shaped channel. This makes it easier for the chain to enter the Y-shaped channel and improves the smoothness of the sliding of the invisible zipper.

[0019] Preferably, the Y-shaped channel has a guide opening at the end where the chain belt engages. The guide opening is V-shaped and gradually slopes downward from the inside out. The gradually downward-sloping guide opening guides the fabric belt during separation, making it easier for the fabric belt to enter the Y-shaped channel and improving the smoothness of the concealed zipper's sliding motion. Furthermore, the V-shaped guide opening also allows the fabric belt to be aligned with the Y-shaped channel, making it easier for the separation column to separate the fabric belt, further improving the smoothness of the concealed zipper's sliding motion.

[0020] A zipper includes the aforementioned concealed zipper pull and a chain strap that engages and cooperates with the concealed zipper pull, wherein the concealed zipper pull slides on the chain strap to separate or engage the chain strap.

[0021] The beneficial effects of this utility model are:

[0022] This utility model proposes a concealed zipper pull and zipper with an arc-shaped spring tab. On the one hand, by raising the installation position of the zipper pull, the height difference between the zipper pull and the upper wing plate when the zipper pull is laid flat creates a space for the fabric to pass through, preventing the zipper pull's pivot from pressing against the fabric of the zipper belt. On the other hand, by offsetting the mounting hole to the forward protrusion, the pivot of the zipper pull is misaligned with the upper wing plate, allowing the concealed zipper pull to be compatible with thicker fabric belts, improving the versatility of the concealed zipper pull, and preventing the pivot of the zipper pull from pressing against the fabric belt when the concealed zipper pull is used with thicker fabric belts. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of the concealed zipper pull of this utility model;

[0024] Figure 2 This is a schematic diagram of the main body of the concealed zipper pull of this utility model;

[0025] Figure 3 This is a sectional view of the main zipper pull of the concealed zipper pull of this utility model;

[0026] Figure 4 This is a schematic diagram of the pull tab of the concealed zipper pull of this utility model;

[0027] Figure 5 This is a schematic diagram of the pivot of the pull tab of the concealed zipper pull of this utility model;

[0028] Figure 6 This is a schematic diagram of the bow-shaped spring of the concealed zipper pull of this utility model;

[0029] Figure 7 Another schematic diagram of the bow-shaped spring of the concealed zipper pull of this utility model;

[0030] Figure 8 This is a schematic diagram of the installation of the bow-shaped spring clip of the concealed zipper pull of this utility model;

[0031] Figure 9 This is a schematic diagram of another embodiment of the bow-shaped spring of the invisible zipper pull of this utility model.

[0032] Figure label:

[0033] 1. Pull head body; 2. Pull tab; 3. Bow-shaped spring; 11. Lower wing plate; 12. Side plate; 13. Upper wing plate; 14. Separation column; 15. Y-shaped channel; 16. Forward protrusion; 17. Bow-shaped cavity; 18. Fabric passage space; 21. Rotating shaft; 31. Anti-slip part; 32. Pressing part; 33. Tail; 141. Mounting hole; 142. Second cavity; 143. Locking hole; 151. Guide opening; 161. First cavity; 162. Connecting hole; 163. Limiting groove; 171. Snap-fit ​​boss; 211. Drive part; 311. Limiting boss; 331. Limiting section; 332. Locking section. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] like Figures 1-8 As shown, a concealed zipper pull with an arc-shaped spring includes a zipper pull body 1. The zipper pull body 1 includes a lower wing plate 11. A separation post 14 is provided on the lower wing plate 11. A pull tab 2 is hinged to the top of the separation post 14. There are also upwardly extending side plates 12 on both sides of the lower wing plate 11. The top of the side plates 12 is folded inward and extended to form symmetrically arranged upper wing plates 13. A Y-shaped channel 15 is formed between the separation post 14, the lower wing plate 11, the side plates 12 and the upper wing plate 13. A gap is formed between the symmetrically arranged upper wing plate 13 and the separation post 14 to fit the Y-shaped channel 15, so that the chain teeth can pass through and enter the Y-shaped channel 15.

[0037] The top of the separating column 14 is provided with a mounting hole 141 that is adapted to the pull tab 2. The mounting hole 141 is higher than the upper wing plate 13, so that when the pull tab 2 is laid flat, a fabric passage space 18 is formed between it and the upper wing plate 13. The fabric passage space 18 is used for the fabric of the chain belt to pass through. Since the mounting hole 141 is higher than the upper wing plate 13, a height difference is formed between the pivot 21 of the pull tab 2 and the upper wing plate 13. The fabric passage space 18 formed by the height difference can prevent the pivot 21 of the pull tab 2 from abutting against the fabric, thereby preventing the pivot 21 of the pull tab 2 from pressing against the fabric and causing the invisible zipper to slide and get stuck.

[0038] The separating column 14 extends away from the Y-shaped channel 15 to form a forward protrusion 16. As the height of the mounting hole 141 is increased, the turning lever arm when the concealed zipper is pulled is lengthened, which increases the turning torque of the concealed zipper and increases the turning angle of the concealed zipper, thereby reducing the balance when the concealed zipper is pulled. The outwardly extending forward protrusion 16 makes the concealed zipper need to overcome greater resistance when turning, thereby balancing the increased turning torque and ensuring the convenience of sliding the concealed zipper.

[0039] The protruding part 16 has a first cavity 161, and the separating column 14 has a second cavity 142. The first cavity 161 and the second cavity 142 open upward and communicate with each other to form an arc-shaped cavity 17. The arc-shaped cavity 17 has a locking hole 143, which connects the arc-shaped cavity 17 and the Y-shaped channel 15. The arc-shaped cavity 17 also has an arc-shaped spring piece 3 that elastically abuts against the rotating shaft 21 of the pull tab 2. One end of the arc-shaped spring piece 3 extends from the locking hole 143 into the Y-shaped channel 15 to form a locking tongue. When the pull tab 2 rotates to a specific angle, the locking tongue retracts from the Y-shaped channel 15. The locking tongue is used for self-locking of the concealed zipper head to prevent accidental slippage. The fact that the concealed zipper head is only unlocked at a specific angle increases the locking range of the concealed zipper head, preventing accidental contact with the pull tab 2 that would cause the concealed zipper head to unlock, and further improves the self-locking effect of the concealed zipper head.

[0040] In this embodiment, the Y-shaped channel 15 has a guide opening 151 at the end where the chain engages. The guide opening 151 is V-shaped and gradually slopes downward from the inside out. The guide opening 151, which slopes downward from the inside out, guides the chain when it separates, making it easier for the chain to enter the Y-shaped channel 15 and improving the smoothness of the sliding of the concealed zipper. Furthermore, the V-shaped guide opening 151 can also center-align the chain with the Y-shaped channel 15, making it easier for the separation post 14 to separate the chain, further improving the smoothness of the sliding of the concealed zipper.

[0041] The mounting hole 141 is close to the front protrusion 16, so that after the pull tab 2 is installed, the rotation axis 21 of the pull tab 2 and the projection of the upper wing plate 13 on the plane where the lower wing plate 11 is located do not overlap, thereby making the pull tab 2 and the upper wing plate 13 misaligned, so that the invisible zipper head can be compatible with thicker fabric tape and improve the versatility of the invisible zipper head.

[0042] In this embodiment, the protruding part 16 is also provided with a limiting groove 163 corresponding to the Y-shaped channel 15. The limiting groove 163 is provided on both sides of the separating column 14. When the separated chain enters the Y-shaped channel 15, the limiting groove 163 restricts the amplitude of the chain swinging up and down, preventing the chain from swinging up and down too much, which would cause the chain to collide when entering the Y-shaped channel 15. This makes it easier for the chain to enter the Y-shaped channel 15 and improves the smoothness of the sliding of the invisible zipper.

[0043] In this embodiment, the bow-shaped spring 3 presses against the rotating shaft 21 of the pull tab 2 from top to bottom. The rotating shaft 21 is provided with a driving part 211 adapted to the bow-shaped spring 3. When the pull tab 2 starts to rotate from its flat position, the driving part 211 gradually raises the bow-shaped spring 3, driving the locking tongue to gradually exit the Y-shaped channel 15. When the pull tab 2 rotates to the specific angle, the locking tongue completely exits the Y-shaped channel 15. When the pull tab 2 continues to rotate, the locking tongue gradually extends into the Y-shaped channel 15. By gradually moving the locking tongue into and out of the Y-shaped channel 15, the instantaneous deformation of the locking tongue when entering and exiting the Y-shaped channel 15 is reduced, thereby reducing the wear of the bow-shaped spring 3 and improving its service life.

[0044] Specifically, the specific angle is 90° between the pull tab 2 and the flat position, so that the driving force required for the pull tab 2 to drive the invisible zipper head to slide back and forth is similar or equal, thereby preventing the invisible zipper head from getting stuck due to excessive difference in driving force, and thus improving the smoothness of the invisible zipper head sliding.

[0045] Specifically, the bow-shaped spring 3 includes a sequentially arranged anti-disengagement part 31, a pressing part 32, and a tail part 33. The anti-disengagement part 31 is shaped like a "7" and engages with the bow-shaped cavity 17. The pressing part 32 is cap-shaped and presses against the rotating shaft 21 from top to bottom. The tail part 33 includes a horizontally arranged limiting section 331 and a vertically arranged locking section 332. The limiting section 331 abuts against the bow-shaped cavity 17, and the end of the locking section 332 forms the locking tongue. The limiting section 331 can limit the length of the locking tongue extending into the Y-shaped channel 15, preventing the pressing part 32 from bending and deforming after prolonged use, which would increase the length of the locking tongue extending into the Y-shaped channel 15 and thus prevent the concealed zipper from unlocking, thereby improving the reliability of the bow-shaped spring 3. Because the mounting hole 141 is offset towards the protruding part 16, the distance between the pivot 21 of the pull tab 2 and the locking hole 143 increases, making it difficult for conventional bow-shaped springs 3 to fit. The horizontally arranged springs can compensate for the increased distance between the pivot 21 of the pull tab 2 and the locking hole 143 without affecting the self-locking function of the bow-shaped springs 3 by extending laterally, so that the bow-shaped springs 3 can fit with the pull head body 1.

[0046] Specifically, the bow-shaped cavity 17 is further provided with a connecting hole 162 corresponding to the anti-dislodgement part 31. The connecting hole 162 connects the bow-shaped cavity 17 to the outside, allowing the bow-shaped spring 3 to enter the bow-shaped cavity 17. The bow-shaped spring 3 passes through the connecting hole 162 and the locking hole 143 in sequence, so that the connecting hole 162 and the locking hole 143 respectively lock the two ends of the bow-shaped spring 3, preventing the bow-shaped spring 3 from moving back and forth and improving the stability of the bow-shaped spring 3.

[0047] Specifically, the anti-disengagement part 31 is also provided with a limiting boss 311. When the bow-shaped spring piece 3 enters the bow-shaped cavity 17, the limiting boss 311 abuts against the end face of the connecting hole 162. The limiting boss 311 is used to prevent the anti-disengagement part 31 from moving upward, so that under the drive of the pull tab 2 rotating shaft 21, only the locking tongue moves upward, thereby causing the bow-shaped spring piece 3 to undergo elastic deformation, providing the power for the locking tongue to reset, so that the pull tab 2 automatically locks itself after rotating through a specific angle, improving the reliability of the bow-shaped spring piece 3.

[0048] Specifically, the bow-shaped cavity 17 is further provided with a locking protrusion 171 adapted to the anti-detachment part 31. When the bow-shaped spring piece 3 is installed in the bow-shaped cavity 17, the locking protrusion 171 elastically engages with the anti-detachment part 31 and abuts against the wall of the connecting hole 162. The locking protrusion 171 is used to prevent the anti-detachment part 31 from falling out of the bow-shaped cavity 17, thereby improving the reliability of the anti-detachment part 31; when the anti-detachment part 31 abuts against the wall of the connecting hole 162, it can prevent the anti-detachment part 31 from shaking, thereby improving the stability of the anti-detachment part 31.

[0049] Example 2

[0050] like Figure 9 As shown, this is one embodiment of the present invention. The main technical solution of this embodiment is the same as that of Embodiment 1. Features not explained in this embodiment are explained in Embodiment 1 and will not be repeated here. The difference between this embodiment and Embodiment 1 is:

[0051] In this embodiment, one end of the bow-shaped spring 3 abuts against the end face of the lock hole 143. The bow-shaped spring 3 includes an anti-disengagement part 31, a pressing part 32, and a tail part 33 arranged sequentially. The anti-disengagement part 31 is in the shape of a "7" and engages with the bow-shaped cavity 17. The pressing part 32 is cap-shaped and presses against the rotating shaft 21 from top to bottom. The tail part 33 is L-shaped and abuts against the end face of the lock hole 143. When the tail part 33 is L-shaped, the concealed zipper no longer has a self-locking function, making the concealed zipper suitable for scenarios where self-locking is not required, thus improving the applicability of the concealed zipper.

[0052] Example 3

[0053] A zipper includes a concealed zipper pull as described in Embodiment 1 or Embodiment 2, and a chain belt that is connected and cooperates with the concealed zipper pull. The concealed zipper pull slides on the chain belt to separate or engage the chain belt.

[0054] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A camouflaged puller with an arc spring, comprising a puller body, the puller body comprising a lower wing plate, a separation column being arranged on the lower wing plate, a pull tab being hingedly connected to the top of the separation column, and upwardly extending side plates being arranged on both sides of the lower wing plate, the top of the side plates being inwardly folded and extended to form symmetrical upper wing plates, a Y-shaped channel being formed between the separation column, the lower wing plate, the side plates and the upper wing plates, and a gap being formed between the symmetrical upper wing plates and the separation column and being adapted to the Y-shaped channel for the entry of a chain tooth of a chain belt into the Y-shaped channel; characterized in that, an installation hole being arranged on the top of the separation column and being adapted to the pull tab, the installation hole being higher than the upper wing plates to form a cloth passing space between the pull tab and the upper wing plates when the pull tab is laid flat; the separation column extending towards a direction away from the Y-shaped channel to form a front protrusion, a first cavity being arranged in the front protrusion, a second cavity being arranged in the separation column, the first cavity and the second cavity being upwardly open and being in communication with each other to form an arc cavity, a lock hole being arranged in the arc cavity and being in communication with the arc cavity and the Y-shaped channel, and an arc spring being arranged in the arc cavity and being in elastic abutment with a rotating shaft of the pull tab; the installation hole being close to the front protrusion, the rotating shaft of the pull tab and the projection of the upper wing plate on the plane of the lower wing plate not overlapping each other when the pull tab is installed. the arc spring abutting against the rotating shaft of the pull tab from top to bottom, a driving part being arranged on the rotating shaft and being adapted to the arc spring, one end of the arc spring extending into the Y-shaped channel from the lock hole to form a lock tongue, and the lock tongue withdrawing from the Y-shaped channel when the pull tab is rotated to a specific angle; the driving part gradually lifting the arc spring to drive the lock tongue to gradually withdraw from the Y-shaped channel when the pull tab is rotated from the laid flat state, the lock tongue completely withdrawing from the Y-shaped channel when the pull tab is rotated to the specific angle, and the lock tongue gradually extending into the Y-shaped channel when the pull tab is continuously rotated.

2. The camouflaged puller tab with arcuate spring pieces of claim 1, wherein, the specific angle being 90° between the pull tab and the laid flat state.

3. The camouflaged puller tab with arcuate spring pieces of claim 2, wherein, the arc spring comprising a anti-disengagement part, an abutting part and a tail part arranged in sequence, the anti-disengagement part being in the shape of "7" and being in clamping connection with the arc cavity, the abutting part being in the shape of a cover and abutting against the rotating shaft from top to bottom, and the tail part comprising a limiting section arranged in transverse direction and a locking section arranged in longitudinal direction, the limiting section being in abutment with the arc cavity, and the end of the locking section being formed into the lock tongue.

4. The camouflaged puller tab with arcuate spring according to claim 2, wherein, a communication hole being arranged in the arc cavity and being adapted to the anti-disengagement part, the communication hole being in communication with the arc cavity and the outside to allow the arc spring to enter the arc cavity, and a limiting boss being arranged on the anti-disengagement part, the limiting boss being in abutment with the end surface of the communication hole when the arc spring enters the arc cavity.

5. The camouflaged puller tab with arcuate spring pieces of claim 4, wherein, a clamping boss being arranged in the arc cavity and being adapted to the anti-disengagement part, the clamping boss being in elastic clamping connection with the anti-disengagement part and being in abutment with the hole wall of the communication hole when the arc spring is installed in the arc cavity.

6. The camouflaged puller tab with arcuate spring pieces of claim 5, wherein, ​ 7. The camouflaged puller tab with arcuate spring according to claim 1, wherein, The arc-shaped elastic piece is arranged on the rotating shaft of the pull tab from top to bottom, and a driving part matched with the arc-shaped elastic piece is arranged on the rotating shaft, and one end of the arc-shaped elastic piece is abutted against the end face of the lock hole; the arc-shaped elastic piece comprises a anti-off part, a pressing part and a tail part arranged in sequence, the anti-off part is in the shape of "7", and is clamped with the arc-shaped cavity; the pressing part is in the shape of cover, and is arranged on the rotating shaft from top to bottom; the tail part is in the shape of L, and is abutted against the end face of the lock hole.

8. The camouflaged puller tab with arcuate spring pieces of claim 1, wherein, The front convex part is further provided with a limiting groove corresponding to the Y-shaped channel, and the limiting groove is arranged on both sides of the separation column.

9. The camouflaged puller tab with arcuate spring pieces of claim 1, wherein, The end of the chain belt engaged by the Y-shaped channel is provided with a guide port, and the guide port is in the shape of V and is arranged to be gradually inclined downward from inside to outside.

10. A zipper characterized by, The chain belt comprises a hidden puller and a chain belt connected with the hidden puller, the hidden puller is arranged on the chain belt and is used to separate or engage the chain belt.

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