Puller with lock and zipper
By designing the base, code hook, spring piece and safety lock structure of the locking slider, the shortcomings of the existing slider in terms of unlocking convenience and anti-mislocking are solved, convenient self-locking and unlocking operations are achieved, and the anti-theft performance of the slider is improved.
Patent Information
- Application Number
- CN202510829996.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2025-09-12
AI Technical Summary
Existing sliders have deficiencies in terms of unlocking convenience and preventing misinterpretation of the lock. Especially in situations where anti-theft is required, conventional sliders require additional lock structures and are cumbersome to operate, and lack airtightness.
A locking slider is designed, which includes a base, a code hook, a spring and a safety lock. Through the crossbar and locking plate structure of the safety lock, convenient switching between self-locking and unlocking can be achieved under the operation of the slider, ensuring that the slider remains in a self-locking state during the chain closing and opening process.
The slider is easy to operate during chain closing and chain opening, and can remain in a self-locking state when unlocking, thus avoiding mis-locking and improving convenience and airtightness.
Smart Images
Figure CN120616233A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of clothing design, and more particularly to a slider with a lock. In addition, the present invention also relates to a zipper comprising the slider with a lock. Background Art
[0002] Zippers are a component of clothing accessories and are widely used in daily life. The slider is a crucial component of the zipper, acting as the opening and closing mechanism for the zipper elements. The most commonly used sliders on the market generally consist of four parts: the slider body, cap, hook, and pull tab. In some anti-theft situations, conventional sliders lack a built-in locking mechanism and require an external lock, such as a combination lock or similar mechanism. This makes them bulky and cumbersome to use on luggage other than suitcases. Furthermore, the slider must be pulled together and then buckled, a complex process that contradicts the convenient and fast nature of zippers. Existing technologies exist that can lock zippers, but these require the two sliders to be closed in the middle to complete the locking process. This also requires the addition of an additional locking mechanism, making the pull tab bulky and heavy. Furthermore, these technologies use non-locking elephant trunk sliders, which lack airtightness.
[0003] In summary, how to ensure that the slider can be easily unlocked while preventing mis-locking is a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide a locking slider, the head of which has a safety lock and can provide a deflection torque. When the head and the code hook are lifted up at the same time, the cross bar can drive the code hook to move toward the base, thereby preventing accidental unlocking.
[0005] Another object of the present invention is to provide a slide fastener comprising the locking slider.
[0006] In order to achieve the above object, the present invention provides the following technical solutions:
[0007] A locking slider, comprising:
[0008] The base has a cover body on its surface, a cavity is formed between the cover body and the base, the surface of the base is provided with a perforation, the side of the cover body is provided with a through hole, and a pull tab is provided in the through hole;
[0009] A code hook is rotatably provided on the base, and a hook head of the code hook passes through the perforation;
[0010] a spring piece, provided on the cover body, the spring piece abutting against the code hook and being used to apply an elastic force to the code hook in the direction of the base;
[0011] A safety lock is provided in the through-hole, and the safety lock includes two locking plates connected by a cross bar. The code hook is provided between the two locking plates. When the head of the locking plate is driven upward by the pull tab from the side facing the base, the cross bar is used to drive the hook head to move along the through-hole in a direction away from the cover body.
[0012] Preferably, the locking piece includes the head, a fin and a tail, the fin is provided between the head and the tail, and the cross bar is connected to the fins of the two locking pieces.
[0013] Preferably, a limiting protrusion extending toward the cover body is provided at the through-hole, and the limiting protrusion is combined with the through-hole to form a channel for the tail and the hook head to slide.
[0014] Preferably, the inner periphery of the limiting protrusion is an inclined track, and a first protrusion and a second protrusion are provided on the hook head, the first protrusion extends in a direction away from the safety lock, and the second protrusion is provided in the opposite direction of the first protrusion, and the first protrusion is provided farther away from the spring piece than the second protrusion.
[0015] Preferably, the head portion is provided with a protrusion extending in a direction away from the base, and the protrusion is used to abut against the elastic sheet.
[0016] Preferably, the side of the code hook away from the hook head is a rotating part, the rotating part is rotatably connected to the base, and an arc-shaped connecting part is provided between the hook head and the rotating part, and the connecting part is bent in the direction away from the base.
[0017] Preferably, a limit block is provided on the rotating portion, and the limit block extends in a direction away from the hook head.
[0018] A locking slider, comprising:
[0019] The base has a cover body on its surface, a cavity is formed between the cover body and the base, the surface of the base is provided with a perforation, the side of the cover body is provided with a through hole, and a pull tab is provided in the through hole;
[0020] A code hook is rotatably provided on the base, and a hook head of the code hook passes through the perforation;
[0021] a spring piece, provided on the cover body, the spring piece abutting against the code hook and being used to apply an elastic force to the code hook in the direction of the base;
[0022] A safety lock is provided in the through-hole, and the safety lock comprises two locking plates connected by a cross bar. The code hook is provided between the two locking plates. When the pull tab contacts the code hook from one side of the raised portion of the locking plate and drives it to move upward, the hook head moves along the through-hole toward the direction close to the cover body.
[0023] A safety lock for a slider, comprising:
[0024] The safety lock includes two locking plates connected by a crossbar;
[0025] The locking piece has a raised portion;
[0026] The locking piece further comprises a head, a fin and a tail, wherein the fin is arranged between the head and the tail;
[0027] The crossbar is connected to the fins of the two locking plates;
[0028] There is an accommodating space between the two locking pieces for accommodating a code hook for the slider;
[0029] After the code hook is installed in place on the slider, a part of it is located directly below the cross bar. When the pull tab of the slider contacts the head from the side of the tail and drives it to move upward, the cross bar is used to push the part of the code hook directly below the cross bar toward the direction directly below the cross bar.
[0030] A zipper comprises a locking slider, wherein the locking slider is any one of the above-mentioned locking sliders or has the aforementioned safety lock.
[0031] The present invention provides a slider with a lock, wherein the base surface of the slider is provided with a perforation, the perforation is covered with a cover body, a code hook, a spring piece and a safety lock are provided between the cover body and the base, the hook head of the code hook passes through the perforation, the safety lock comprises two locking pieces connected by a cross bar, the code hook is provided between the two locking pieces, a through hole passing through on both sides is provided on the side of the cover body, an annular pull tab is provided in the through hole, when the pull tab is pulled and directly drives the safety lock to move directly in the direction away from the base, the pull tab can generate a force on the code hook and the safety lock at the same time, and the head of the lock piece and the spring piece interact with each other The cross bar can press the code hook in the direction away from the cover body, so that the code hook is always in a self-locking state and cannot be lifted. When the chain needs to be separated, the pull tab is moved in the direction away from the safety lock, and the pull tab is moved along the code hook so that the pull tab can pass between the code hook and the lock plate. At this time, the code hook can move toward the direction of the cover body to unlock the chain. Pulling the pull tab can complete the chain separation. When the chain needs to be closed, it is only necessary to move the pull tab toward the code hook, pull the pull tab and make the pull tab generate a force only between the pull tab and the code hook, so that the code hook can move toward the cover body, and pull the pull tab to complete the chain closing.
[0032] Compared with the existing technology, the unlocking operation is relatively simple, whether closing or opening the chain. When the pull tab is directly pulled to drive the safety lock and the code hook to move toward the cover body, the self-locking state of the slider can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
[0034] Figure 1 A schematic diagram of the structure of the safety lock provided by the present invention;
[0035] Figure 2 This is a schematic diagram of the internal structure of the locking slider provided by the present invention in normal state;
[0036] Figure 3 This is a schematic structural diagram of the present invention's unlocked slider during chain separation.
[0037] Figure 4 This is a schematic structural diagram of the locking slider provided by the present invention during the chain closing process in the unlocked state;
[0038] Figure 5 This is a schematic structural diagram of the locking slider in the safety state provided by the present invention;
[0039] Figure 6 This is a force analysis diagram of the locking slider in the safety state provided by the present invention;
[0040] Figure 7 for Figure 6 Schematic diagram of the load analysis.
[0041] Reference numerals:
[0042] 1-base; 101-cover; 2-code hook; 201-hook head; 2011-first protrusion; 2012-second protrusion; 202-rotating part; 2021-limiting block; 203-connecting part; 3-spring; 4-safety lock; 401-cross bar; 402-locking piece; 4021-head; 4022-fin; 4023-tail; 4024-raised part; 5-pull tab. DETAILED DESCRIPTION
[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0044] The core of the present invention is to provide a locking slider, which has a relatively simple unlocking operation during the chain closing and unchaining process, and can maintain the self-locking state of the slider when directly pulling the pull tab to drive the safety lock and the code hook to move toward the cover body.
[0045] Another core of the present invention is to provide a zipper including the above-mentioned locking slider.
[0046] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application.
[0047] The present application provides a locking slider, comprising: a base 1, a code hook 2, a spring piece 3 and a safety lock 4;
[0048] The surface of the base 1 is provided with a cover 101, a cavity is formed between the cover 101 and the base 1, the surface of the base 1 is provided with a perforation, the side of the cover 101 is provided with a through hole, and a pull tab 5 is provided in the through hole;
[0049] The code hook 2 is rotatably arranged on the base 1, and the hook head 201 of the code hook 2 passes through the perforation;
[0050] The spring piece 3 is provided on the cover 101 , and the spring piece 3 abuts against the code hook 2 and is used to apply elastic force to the code hook 2 in the direction of the base 1 ;
[0051] The safety lock 4 is arranged in the through-hole. The safety lock 4 includes two locking plates 402 connected by a cross bar 401. The code hook 2 is arranged between the two locking plates 402. When the head 4021 of the locking plate 402 is driven upward by the pull tab 5 from the side facing the base 1, the cross bar 401 is used to drive the hook head 201 to move along the through-hole in the direction away from the cover body 101.
[0052] Specifically, the structures of the base 1, the code hook 2 and the spring 3 can be referred to in the attached Figure 2 The structure of the safety lock 4 can refer to the attached Figure 1, as for the external structure of the base 1 and the cover 101, its structure can refer to the common slider structure, so it is not repeated here. A perforation is provided in the middle of the upper surface of the base 1, and a cover 101 is provided on the surface of the perforation. The cover 101 covers the perforation. A code hook 2, a spring piece 3 and a safety lock 4 are provided between the cover 101 and the base 1. One end of the code hook 2 is rotatably connected to the base 1, and the other end passes through the perforation on the surface of the base 1. Under normal circumstances, the code hook 2 is acted upon by the spring piece 3, and the code hook 2 moves toward the direction of the base 1 or has a tendency to move toward the base 1, so that the code hook 2 can be inserted between the chain teeth of the zipper to play a locking role. A safety lock 4 is also provided between the base 1 and the cover body 101. The safety lock 4 consists of two locking pieces 402 and a cross bar 401. The two locking pieces 402 are connected by the cross bar 401, and the two locking pieces 402 sandwich the code hook 2 in the middle. A through hole is provided on the cover body 101. The extension direction of the through hole is perpendicular to the code hook 2 and the safety lock 4. An annular pull tab 5 is provided in the through hole. The code hook 2 passes through the pull tab 5. In the process of pulling the pull tab 5, the safety lock 4 can be controlled to pass through the pull tab 5 or not.
[0053] When you need to close the chain, please refer to the attached Figure 4 The pull tab 5 should be pulled from left to right until the inner periphery of the pull tab 5 is in contact with the code hook 2, and a force is applied toward the upper right by pulling the pull tab 5. At this time, the slider can be directly pulled to move along the zipper, and the zipper can be closed. It should be noted that since no force is generated between the pull tab 5 and the safety lock 4 during the closing process, the safety lock 4 does not restrict the movement of the code hook 2.
[0054] When the pull tab 5 drives the code hook 2 and the safety lock 4 to move upward synchronously, please refer to the attached Figure 6 With attached Figure 7 The pull piece 5 can generate a force on the code hook 2 and the safety lock 4 at the same time, and the head 4021 of the lock piece 402 interacts with the spring piece 3. Figure 7 It can be seen intuitively that the cross bar 401 can press the code hook 2 in a direction away from the cover body 101, so that the code hook 2 is always in a self-locking state and cannot be lifted.
[0055] Based on the above embodiment, the locking piece 402 includes a head 4021 , a fin 4022 and a tail 4023 . The fin 4022 is disposed between the head 4021 and the tail 4023 . The crossbar 401 is connected to the fins 4022 of the two locking pieces 402 .
[0056] Specifically, the structure of the locking piece 402 can also be referred to in the attached Figure 1From right to left, they are the head 4021, the fin 4022 and the tail 4023 of the locking piece 402. The fins 4022 of the two locking pieces 402 are connected by a cross bar 401, and the cross bar 401 fits with the two fins 4022 to ensure structural stability.
[0057] On the basis of the above embodiment, a limiting protrusion extending toward the cover body 101 is provided at the through hole. The limiting protrusion and the through hole are combined to form a channel for the tail portion 4023 and the hook head 201 to slide.
[0058] For details, please refer to the attached Figure 2 A limiting protrusion extending upward is provided on the upper surface of the base 1, and the limiting protrusions are arranged in a ring around the outer periphery of the perforation, so that the inner periphery of the limiting protrusion and the inner wall of the perforation are combined to form a track, which is used to store the tail 4023 of the locking piece 402 and the hook head 201 of the code hook 2, and the tail 4023 and the hook head 201 can slide up and down in the track. During the upward sliding process of the hook head 201, it can detach from the zipper, thereby unlocking it. When the head 4021 of the locking piece 402 and the hook head 201 move upward synchronously, the tail 4023 of the locking piece 402 slides downward along the track, and at the same time, the fin 4022 of the locking piece 402 and the cross bar 401 press the hook head 201 to prevent the hook head 201 from unlocking.
[0059] On the basis of the above embodiment, the inner periphery of the limiting protrusion is an inclined track, and a first protrusion 2011 and a second protrusion 2012 are provided on the hook head 201. The first protrusion 2011 extends in a direction away from the safety lock 4, and the second protrusion 2012 is arranged in the opposite direction to the first protrusion 2011. The first protrusion 2011 is arranged farther away from the spring piece 3 than the second protrusion 2012.
[0060] For details, please refer to the attached Figure 6 The track composed of the limiting protrusion and the perforation extends from the lower right to the upper left, and a first protrusion 2011 and a second protrusion 2012 are provided on the hook head 201. The first protrusion 2011 extends toward the right, and the second protrusion 2012 extends toward the left, and the first protrusion 2011 is arranged below the second protrusion 2012, so that the first protrusion 2011 abuts against the right side of the track, and the second protrusion 2012 abuts against the left side of the track.
[0061] On the basis of the above embodiment, a protrusion 4024 extending in a direction away from the base 1 is provided on the head 4021 , and the protrusion 4024 is used to abut against the elastic piece 3 .
[0062] For details, please refer to the attached Figure 6A protrusion 4024 extending upward is provided above the head 4021 of the locking piece 402. The protrusion 4024 can contact the spring piece 3. When the pull tab 5 pulls the code hook 2 and the safety lock 4 at the same time, the spring piece 3 can exert an elastic force on the protrusion 4024 provided on the head 4021 of the locking piece 402, so that the tail 4023 of the locking piece 402 slides toward the lower right along the track. At the same time, the fin 4022 of the locking piece 402 can press the code hook 2 to prevent the code hook 2 from being unlocked.
[0063] Based on the above embodiment, the side of the code hook 2 away from the hook head 201 is a rotating part 202, and the rotating part 202 is rotatably connected to the base 1. An arc-shaped connecting part 203 is provided between the hook head 201 and the rotating part 202, and the connecting part 203 is bent in the direction away from the base 1.
[0064] For details, please refer to the attached Figure 6 The right side of the code hook 2 is the rotating part 202, which is rotatably connected to the base 1. The connecting part between the rotating part 202 and the hook head 201 is an arc-shaped structure, and the connecting part is bent toward the direction of the spring piece 3, that is, it is bent upward. The left end of the connecting part is the above-mentioned second protrusion 2012. By setting the connecting part to an arc structure, combined with the second protrusion 2012, the movement trajectory of the code hook 2 can be limited.
[0065] On the basis of the above embodiment, a limiting block 2021 is provided on the rotating portion 202 , and the limiting block 2021 extends in a direction away from the hook head 201 .
[0066] For details, please refer to the attached Figure 6 A limit block 2021 is provided on the right side of the rotating part 202. The limit block 2021 extends to the right to limit the rotation range of the rotating part 202. The limit block 2021 cooperates with the arc-shaped connecting part and the second protrusion 2012 to determine the movement trajectory of the code hook 2.
[0067] On the basis of the above embodiment, the surface of the head 4021 and the surface of the hook 2 facing the base 1 are both arc-shaped surfaces.
[0068] For details, please refer to the attached Figure 3 The upper surface, lower surface and right end of the head 4021 of the locking piece 402 and the lower surface of the code hook 2 are all arc-shaped smooth surfaces. Therefore, when the pull tab 5 slides along the code hook 2 into between the code hook 2 and the locking piece 402, the resistance can be greatly reduced and the smoothness is improved.
[0069] It should be clear that under normal circumstances, the right side of the head of the locking piece 402 should be slightly lower than the lower surface of the code hook 2, so as to reduce the difficulty of inserting the pull tab 5 between the code hook 2 and the locking piece 402.
[0070] On the basis of the above embodiment, the elastic piece 3 is provided in the cavity between the cover 101 and the base 1 and is located on a side of the cavity away from the base 1 .
[0071] Specifically, there is a cavity between the cover body 101 and the base 1. The design of the cavity can refer to the slider structure in the prior art, so it will not be described in detail. It should be noted that the spring piece 3 should be arranged at the top of the cavity, as close as possible to the upper inner wall of the cover body 101, but a certain distance should be maintained between the spring piece 3 and the upper inner wall of the cover body 101 to reserve sufficient space for the spring piece 3 to bend upward.
[0072] Based on the above content, the lockable zipper of this application includes:
[0073] The surface of the base 1 is provided with a cover 101, a cavity is formed between the cover 101 and the base 1, the surface of the base 1 is provided with a perforation, the side of the cover 101 is provided with a through hole, and a pull tab 5 is provided in the through hole;
[0074] The code hook 2 is rotatably arranged on the base 1, and the hook head 201 of the code hook 2 passes through the perforation;
[0075] The spring piece 3 is provided on the cover 101 , and the spring piece 3 abuts against the code hook 2 and is used to apply elastic force to the code hook 2 in the direction of the base 1 ;
[0076] The safety lock 4 is arranged in the through-hole. The safety lock 4 includes two locking plates 402 connected by a cross bar 401. The code hook 2 is arranged between the two locking plates 402. When the pull tab 5 contacts the code hook 2 from the side of the raised portion 4024 of the locking plate 402 and drives it to move upward, the hook head 201 moves along the through-hole toward the direction close to the cover body 101.
[0077] Specifically, when chain splitting is required, please refer to the attached Figure 3 , the pull tab 5 should be pulled toward the code hook 2 until the pull tab 5 contacts the code hook 2, and then the pull tab 5 should be moved along the surface of the code hook 2 until the pull tab 5 penetrates between the code hook 2 and the safety lock 4. At this time, the pull tab 5 is pulled toward the upper left. The component force of the pull tab 5 in the vertical direction can pull the code hook 2 upward, and the pull tab 5 can slightly press the head 4021 of the lock plate 402 toward the lower right, so that the cross bar 401 can move slightly toward the upper left, so that a certain space can be reserved for the code hook 2.
[0078] Based on the above content, the safety lock for the slider provided in this application includes:
[0079] The safety lock 4 includes two locking plates 402 connected by a crossbar 401;
[0080] The locking piece 402 has a protrusion 4024;
[0081] The locking piece 402 further includes a head 4021, a fin 4022 and a tail 4023, wherein the fin 4022 is disposed between the head 4021 and the tail 4023;
[0082] The crossbar 401 is connected to the fins 4022 of the two locking pieces 402;
[0083] There is a receiving space between the two locking pieces 402 for receiving the code hook 2 for the slider;
[0084] After the code hook 2 is installed in place on the slider, a part of it is located directly below the cross bar 401. When the pull tab 5 of the slider contacts the head 4021 from the side of the tail 4023 and drives it to move upward, the cross bar 401 is used to push the part of the code hook 2 directly below the cross bar 401 toward the direction directly below the cross bar 401.
[0085] For details, please refer to the attached Figure 6 The left part of the connecting portion 203 of the code hook 2 is arranged below the cross bar 401, and the connecting portion 203 is bent toward the direction of the cover body 101. The hook head 201 passes through the through hole, so that the entire code hook 2 is approximately a C-shaped structure. When the pull tab 5 contacts the head 4021 from the bottom of the tail 4023 and drives it to move upward, the pull tab 5 can generate an oblique upward force F1 on the locking piece 402, and the code hook 2 will generate an oblique upward force F2 on the locking piece 402. The spring piece 3 can generate a positive downward elastic force F3 on the locking piece 402, and the internal channel of the limiting protrusion can generate a lateral force F4 on the locking piece 402, so as to achieve the following Figure 7 During this process, the cross bar 401 can push the portion of the code hook 2 located directly below the cross bar 401 toward the direction directly below the cross bar 401, ensuring that the code hook 2 remains in a locked state.
[0086] In addition to the above-mentioned locking slider, the present invention also provides a zipper including the locking slider disclosed in the above-mentioned embodiment. For the structures of other parts of the zipper, please refer to the prior art and will not be described in detail herein.
[0087] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0088] The above describes in detail the locking slider and zipper provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are merely intended to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims of the present invention.
Claims
1. A locking slider, characterized in that: include: A base (1) is provided with a cover (101) on its surface, a cavity is formed between the cover (101) and the base (1), a perforation is provided on the surface of the base (1), a through hole is provided on the side of the cover (101), and a pull tab (5) is provided in the through hole; A code hook (2) is rotatably arranged on the base (1), and a hook head (201) of the code hook (2) passes through the perforation arrangement; A spring piece (3) is provided on the cover body (101), wherein the spring piece (3) abuts against the code hook (2) and is used to apply an elastic force to the code hook (2) in the direction of the base (1); A safety lock (4) is provided in the through hole, the safety lock (4) comprising two locking pieces (402) connected by a cross bar (401), the code hook (2) being provided between the two locking pieces (402), and when the head (4021) of the locking piece (402) is driven upward by the pull tab (5) from the side facing the base (1), the cross bar (401) is used to drive the hook head (201) to move along the through hole in a direction away from the cover body (101).
2. The locking slider according to claim 1, characterized in that: The locking piece (402) comprises the head (4021), the fin (4022) and the tail (4023), the fin (4022) being arranged between the head (4021) and the tail (4023), and the cross bar (401) being connected to the fins (4022) of the two locking pieces (402).
3. The locking slider according to claim 2, characterized in that: The through hole is provided with a limiting protrusion extending toward the cover body (101), and the limiting protrusion is combined with the through hole to form a channel for the tail (4023) and the hook head (201) to slide.
4. The locking slider according to claim 3, wherein: The inner periphery of the limiting protrusion is an inclined track, and the hook head (201) is provided with a first protrusion (2011) and a second protrusion (2012), wherein the first protrusion (2011) extends in a direction away from the safety lock (4), and the second protrusion (2012) is provided in the opposite direction to the first protrusion (2011), and the first protrusion (2011) is provided further away from the spring piece (3) than the second protrusion (2012).
5. The locking slider according to claim 4, characterized in that: The head (4021) is provided with a raised portion (4024) extending in a direction away from the base (1), and the raised portion (4024) is used to abut against the elastic sheet (3).
6. The locking slider according to claim 5, characterized in that: The side of the code hook (2) facing away from the hook head (201) is a rotating portion (202), and the rotating portion (202) is rotatably connected to the base (1). An arc-shaped connecting portion (203) is provided between the hook head (201) and the rotating portion (202), and the connecting portion (203) is bent in a direction away from the base (1).
7. The locking slider according to claim 6, characterized in that: A limit block (2021) is provided on the rotating portion (202), and the limit block (2021) extends in a direction away from the hook head (201).
8. A locking slider, characterized in that: include: A base (1) is provided with a cover (101) on its surface, a cavity is formed between the cover (101) and the base (1), a perforation is provided on the surface of the base (1), a through hole is provided on the side of the cover (101), and a pull tab (5) is provided in the through hole; A code hook (2) is rotatably arranged on the base (1), and a hook head (201) of the code hook (2) passes through the perforation arrangement; A spring piece (3) is provided on the cover body (101), wherein the spring piece (3) abuts against the code hook (2) and is used to apply an elastic force to the code hook (2) in the direction of the base (1); A safety lock (4) is provided in the through hole, the safety lock (4) comprising two locking pieces (402) connected by a cross bar (401), the code hook (2) being provided between the two locking pieces (402), and when the pull tab (5) contacts the code hook (2) from one side of the raised portion (4024) of the locking piece (402) and drives the pull tab (5) to move upward, the hook head (201) moves along the through hole toward the cover body (101).
9. A safety lock (4) for a slider, characterized in that: include: The safety lock (4) comprises two locking plates (402) connected by a crossbar (401); The locking piece (402) has a raised portion (4024); The locking piece (402) further comprises a head (4021), a fin (4022) and a tail (4023), wherein the fin (4022) is arranged between the head (4021) and the tail (4023); The crossbar (401) is connected to the fins (4022) of the two locking plates (402); There is an accommodating space between the two locking pieces (402) for accommodating a code hook (2) for the slider; After the code hook (2) is installed in place on the slider, a portion of it is located directly below the cross bar (401). When the pull tab (5) of the slider contacts the head (4021) from the side of the tail (4023) and drives it to move upward, the cross bar (401) is used to push the portion of the code hook (2) located directly below the cross bar (401) toward the direction directly below the cross bar (401).
10. A zipper comprising a locking slider, characterized in that: The locking slider is the locking slider according to any one of claims 1 to 9 or has the safety lock according to claim 9.