Self-locking slider for zipper and zipper

Abstract

Self-locking slider for zipper and zipper, including a first wing plate and a second wing plate which are arranged separately up and down; an outer cover is arranged on the first wing plate, and it is characterized in that a receiving space is formed between the outer cover and the first wing plate; it also includes a locking member arranged on the receiving space, the locking member includes a supporting portion and a claw portion that can swing around the supporting portion and insert into the chain tooth channel; it also includes a first elastic body arranged in the receiving space, and the first elastic body can act on the locking member to make the claw portion insert into the chain tooth channel; the receiving space also includes an unlocking portion, when viewed longitudinally, the unlocking portion and the first elastic body are arranged horizontally left and right; the unlocking portion can move longitudinally by using the space provided by the receiving space to have an unlocking position and a locking position; because a receiving space is formed between the outer cover and the first wing plate, it provides sufficient installation and receiving space for internal components such as the locking member and the first elastic body, which is beneficial to reducing the damage to the overall appearance of the self-locking slider caused by their exposure.

Description

Technical Field

[0001] The present invention relates to a slider with a self-locking mechanism, which is called a self-locking slider in the industry. The self-locking slider is positioned on a chain belt through the self-locking mechanism so as to maintain a stable zipper closing range. The present invention also relates to a zipper using the self-locking slider. Background Art

[0002] The applicant once filed a utility model patent CN201721299705.3 on October 10, 2017, which discloses a slider including an upper cover plate, a lower cover plate and an intermediate connecting column connected between the upper cover plate and the lower cover plate. The upper cover plate does not have a pull tab for threading a pull ring, making the overall appearance of the slider very simple and fashionable. However, during use, the slider is very likely to slide randomly against the user's will and change the zipper closing range, so it is necessary to add a self-locking mechanism.

[0003] The applicant noticed that a self-locking slider is disclosed in patent CN97121246.5. The slider includes a slider body and a pull tab. The slider body includes an upper wing and a lower wing. A locking claw insertion hole is provided on the upper wing, and an arch-shaped cover is fixedly installed on the upper wing. A locking leaf spring is accommodated in the cover. An elastic tongue is provided on the upper surface of the locking leaf spring, and a bent locking claw is provided at one end thereof. The locking leaf spring can move longitudinally on the upper wing so that when the spring moves forward, the locking claw can contact the front wall of the locking claw insertion hole. The pull tab is simultaneously threaded through the cover and the locking leaf spring. When the pull tab is pulled forward and upward, the locking leaf spring is lifted, so that the locking claw is moved out of the space between adjacent teeth, and thus the slider can slide on the zipper to close the zipper. If the pull tab is released, under the action of the elastic tongue, the locking claw of the locking leaf spring is inserted between adjacent teeth again, and the slider is locked on the zipper and cannot slide. The self-locking mechanism disclosed in patent CN97121246.5 is a traditional self-locking mechanism, and a pull tab protruding above the upper wing must be provided, resulting in a protruding upper part of the slider, and the slider is also restricted to an old-fashioned appearance style.

[0004] The applicant also noticed that a thin slider for a zipper was proposed in Patent CN201010002205.5, which includes a slider body, a locking claw and an elastic member. The slider body includes an upper sheet, a lower sheet and a connecting column connected between them, and a tooth channel is formed between the upper sheet and the lower sheet. The upper sheet includes a first upper sheet, and a claw receiving groove for receiving the locking claw is provided on the first upper sheet, and the claw receiving groove is recessed downward to the connecting column. The locking claw is generally L-shaped, and includes a first protruding member vertically extending below the upper wing and a claw rod portion extending horizontally. A claw portion capable of being inserted into the tooth channel is provided at the tail end of the claw rod portion. The intersection of the first protruding member and the claw rod portion is swingably arranged between the side groove walls of the claw receiving groove through a rotating shaft. A horizontally extending receiving hole is provided on the connecting column, and the elastic member is a compression spring and is received on the receiving hole and presses against the first protruding member. The upper sheet further includes a second upper sheet longitudinally slidable on the first upper sheet, and an operating member is provided on the second upper sheet and extends downward beside the first protruding member. When the second upper sheet slides, the first protruding member is driven by the operating member to compress the elastic member so that the claw portion leaves the tooth channel. Although the thin slider can omit the setting of the pull tab and make the overall appearance look flat, the operating member is abruptly arranged in front of the thin slider, looking particularly obtrusive and rigid. Moreover, in order to stably install the elastic member, the longitudinal width of the connecting column is very large, resulting in the thin slider looking very clumsy. Summary of the Invention

[0005] As can be seen from the above analysis, the self-locking mechanism in the prior art has a great impact on the overall appearance of the slider, and even restricts the appearance design space of the slider. One of the purposes of the present invention is to reduce the impact of the self-locking mechanism on the appearance of the slider. In view of this, the present invention provides a self-locking slider for a zipper, which includes a first wing plate and a second wing plate arranged up and down, and a chain tooth channel is formed between them; an outer cover is arranged on the first wing plate, and it is characterized in that a receiving space is formed between the outer cover and the first wing plate; it further includes a locking member arranged on the receiving space, the locking member includes a supporting portion and a claw portion that can swing around the supporting portion and insert into the chain tooth channel; it further includes a first elastic body arranged in the receiving space, and the first elastic body can act on the locking member to make the claw portion insert into the chain tooth channel; it further includes an unlocking portion, when viewed longitudinally, the unlocking portion and the first elastic body are arranged horizontally left and right; the unlocking portion can move longitudinally by using the space provided by the receiving space to have an unlocking position and a locking position. When the unlocking portion moves to the unlocking position, the unlocking portion transmits an unlocking force to the locking member to reduce the depth of insertion of the claw portion into the chain tooth channel. When the unlocking portion is in the locking position, the locking member loses the unlocking force, and the first elastic body makes the claw portion of the locking member swing to increase the depth of insertion into the chain tooth channel.

[0006] Wherein, the main body part of the locking member is received in the receiving space, and its claw portion can extend out of the receiving space and insert into the chain tooth channel.

[0007] Wherein, the supporting portion can be positioned on the first wing plate or the outer cover.

[0008] Wherein, the claw portion can insert into the chain tooth channel and between a pair of front and rear arranged chain teeth located in the chain tooth channel, so as to be able to position the slider at a specific position.

[0009] Wherein, the first elastic body can be a spring, silicone rubber or other structural bodies with excellent elasticity. It is arranged in the receiving space, which can not only avoid loosening, damage, etc. caused by being collided by external objects, but also reduce the exposure, that is, reduce the impact on the appearance of the slider.

[0010] Among them, the unlocking part can move longitudinally by using the space provided by the receiving space. The above feature defines that the unlocking part can be completely received into the receiving space; or partially received in the receiving space and partially exposed outside the receiving space to receive driving energy. That is to say, the receiving space becomes the longitudinal movement space of the unlocking part. When the unlocking part moves to the unlocking position, the unlocking part can directly contact or transmit the unlocking force to the locking part through an intermediate power transmission member. Under the action of the unlocking force, the locking part swings away from the tooth channel against the elastic force of the first elastic body, reducing the depth of insertion of the claw part into the tooth channel. At the same time, the first elastic body deforms to generate a resilience force in the direction opposite to the swinging direction of the locking part. When the unlocking part is in the locking position, the locking part loses the unlocking force and swings back to the reset position under the resilience force of the first elastic body.

[0011] Among them, when viewed longitudinally, the unlocking part and the first elastic body are arranged horizontally side by side. The above feature defines the spatial layout position relationship between the unlocking part and the first elastic body. The lateral side space of the first elastic body can become the moving space of the unlocking part, and they can adopt a horizontally side-by-side layout.

[0012] According to the above technical solution, compared with the prior patent CN201010002205.5, the beneficial technical effects of the present invention are as follows:

[0013] First, since a receiving space is formed between the outer cover and the first wing plate, in this way, on the first wing plate, the outer cover and the first wing plate, which have an extension range both horizontally and longitudinally, are utilized to form the receiving space with a wide-width feature, providing sufficient installation and receiving space for internal components such as the locking part and the first elastic body, which is beneficial to reducing the damage to the overall appearance of the self-locking slider caused by their exposure.

[0014] Second, since when viewed longitudinally, the first elastic body and the unlocking part are arranged horizontally side by side, in this way, they adopt a horizontally side-by-side layout and are adapted to the wide-width feature of the receiving space, improving the utilization rate of the receiving space. Compared with the layout method of stacking them vertically, it is also beneficial to reduce the height of the receiving space.

[0015] A further technical solution may be that the outer cover can slide longitudinally on the first wing plate; the unlocking part is arranged on the outer cover and can slide longitudinally in the storage space. In this way, the movement of the unlocking part can be controlled by pulling the outer cover, thereby improving the convenience of the unlocking operation. It should also be noted that the unlocking part and the outer cover can be a split structure and installed on the outer cover, or an integrated structure. The shape and structure of the unlocking part are various, for example, it can be a raised part extending downward from the outer cover or a recessed part recessed upward. In addition, in order to move the unlocking part to the locked position, in one application, the outer cover can be pulled in the reverse direction to move the unlocking part in the reverse direction to reset, or after the outer cover loses the pulling force, the locking member reset under the action of the rebound force of the first elastic body can reversely drive the unlocking part to move the outer cover in the reverse direction to reset.

[0016] A further technical solution may be that, viewed transversely, the claws and the support are arranged front and back longitudinally. In this way, there is a longitudinal spacing between the claws and the support, and the longitudinal extension space of the storage space can be fully utilized to set a suitable spacing, so that the claws have a suitable swing amplitude relative to the support.

[0017] The first elastic body can exert force on the locking member in various ways, for example, the first elastic body has a fixed end and a free end that are separated in the longitudinal direction, the fixed end is fixed to the first wing plate, and the free end can exert a locking force on the locking member in the vertical direction. In this way, the first elastic body can use the longitudinal extension of the storage space to set its own longitudinal length to form a suitable locking force, and reduce the excessive height space occupied, which is conducive to further reducing the height of the storage space.

[0018] A further technical solution may be that a boss accommodated in the storage space is provided on the first wing plate, the height of the fixed position of the fixed end of the first elastic body relative to the first wing plate is smaller than the height of the boss relative to the first wing plate, the boss is arranged corresponding to the middle part of the first elastic body between the fixed end and the free end and supports the middle part, the free end of the first elastic body is arranged below the first force-bearing part for bearing the locking force on the locking member, and the supporting part is located between the first force-bearing part and the claw part when viewed horizontally. In this way, in the locked state, the fixed end of the first elastic body sinks and the free end tilts upward to support the first force-bearing part, so that the claw part is inserted into the chain tooth channel to maintain the locked state.

[0019] A further technical solution may also be that a plug hole longitudinally extending and accommodated in the receiving space is provided on the first wing plate, the fixed end of the first elastic body is inserted into the plug hole, and the free end is arranged above a first force-receiving portion on the upper locking member for bearing the upper locking force; when viewed horizontally, the first force-receiving portion and the claw portion are located on the same side of the supporting portion. In this way, in the locked state, the free end of the first elastic body can limit the upward swing amplitude of the first force-receiving portion so that the claw portion is inserted into the chain tooth channel to maintain the locked state.

[0020] A further technical solution may also be that the first elastic body is a leaf spring or an elastic rod. In this way, it is beneficial to further reduce the height of the receiving space.

[0021] A further technical solution may also be that the upper locking member includes a transverse connecting rod, a pair of the supporting portions are respectively arranged at the left and right ends of the transverse connecting rod, the claw portion is arranged on the transverse connecting rod, a pair of wing plate recesses are arranged on the first wing plate and are horizontally separated from each other left and right, the openings of the wing plate recesses face upward, and the supporting portion is positioned on the wing plate recesses. In this way, the installation and positioning of the upper locking member are facilitated.

[0022] The unlocking portion can directly contact and drive the upper locking member, or an active rod can be provided between them as an intermediate power transmission member. In view of this, a further technical solution may also be that an active rod capable of longitudinally sliding and a second elastic body for moving the active rod to reset are further arranged in the receiving space. When viewed longitudinally, the active rod and the first elastic body are arranged horizontally left and right; the unlocking portion transmits the unlocking force to the upper locking member through the active rod.

[0023] A further technical solution may also be that a first guiding mechanism accommodated in the receiving space is provided on the first wing plate, and the active rod slides on the first guiding mechanism. In this way, in the case where the outer cover is not installed, the first guiding mechanism can be used to pre-position the active rod, the installation operation is convenient, and the first guiding mechanism can also provide stable guiding for the active rod.

[0024] A further technical solution may also be that an elastic body installation cavity accommodated in the receiving space is provided on the first wing plate, the elastic body installation cavity longitudinally extends, and the second elastic body is restricted on the elastic body installation cavity and presses against the active rod. In this way, in the case where the outer cover is not installed, the elastic body installation cavity can be used to pre-position the second elastic body, and the installation operation is convenient. Among them, the longitudinal extension of the elastic body installation cavity means that the central axis of the elastic body installation cavity is longitudinally arranged, so as to reduce the excessive occupation of the height space of the receiving space.

[0025] The locking member and the first elastic body may be a separate structure, and further, the locking member and the first elastic body may be an integrated structure to form a spring sheet.

[0026] A further technical solution may be that the spring sheet includes a base plate portion and a crest portion, the crest portion includes an upslope portion, a flat portion, and a downslope portion connected to the base plate portion and extending obliquely upward relative to the base plate portion, which are arranged longitudinally in sequence, the claw portion is connected to the downslope portion, the base plate portion constitutes the support portion, and an upward-curved front tongue piece is formed on the flat portion, and the front tongue piece constitutes the first elastomer.

[0027] In order to fix the spring sheet, a further technical solution may be that the first wing plate is provided with a vertical plug plate accommodated in the storage space, the vertical plug plate is provided with an escape hole, the base plate portion of the spring sheet is plugged into the escape hole; an upwardly tilted rear tongue piece is formed on the base plate portion, the vertical plug plate is located between the rear tongue piece and the wave crest portion, and the rear tongue piece is used to prevent the spring sheet from detaching from the vertical plug plate. This facilitates the installation of the spring sheet.

[0028] A further technical solution may also be that a movable rod capable of longitudinal sliding and a second elastic body for moving the movable rod to reset are also provided in the storage space, and the unlocking portion transmits an unlocking force to the locking member through the movable rod; a second guide mechanism accommodated in the storage space is provided on the first wing plate, and the movable rod includes a main rod portion and a support rod portion, the main rod portion is slidably arranged on the second guide mechanism, and the support rod portion extends to below the spring sheet and can reduce the depth of the claw portion inserted into the chain tooth channel by lifting the downslope portion when the unlocking portion is in the unlocking position.

[0029] A further technical solution may be that a mounting platform is provided on the first wing plate, the mounting platform is provided in front of the main rod, a first positioning portion is provided on the mounting platform, and a second positioning portion is provided on the main rod; the second elastic body is a compression spring, one end of the second elastic body is positioned on the first positioning portion, and the other end is positioned on the second positioning portion. In one application, the first positioning portion and the second positioning portion may be a pit or a protrusion.

[0030] A further technical solution may be that a groove adapted to the mounting platform is provided on the inner side wall of the outer cover, and the outer cover rides on the mounting platform through the groove. In this way, when the outer cover can move longitudinally, the outer cover can be guided by the mounting platform to optimize sliding stability.

[0031] In addition, the present invention also provides a zipper, which includes a tape, and is characterized in that it further includes the self-locking slider, and the self-locking slider is slidably disposed on the tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. 6 is a perspective structural view of the self-locking slider 100 for a zipper according to the first embodiment of the present invention;

[0033] Figure 2 FIG. 10 is an exploded structural view of the self-locking slider 100;

[0034] Figure 3 FIG. 14 is a structural view of the self-locking slider 100 in a top view direction, and at this time the self-locking slider 100 is in a locked state; the outer cover 3 is omitted in the figure, but the following cross-sectional views are drawn according to the situation where the outer cover 3 is installed;

[0035] Figure 4 FIG. Figure 3 FIG. 20 is a cross-sectional structural view taken along the line A-A in FIG.

[0036] Figure 5 FIG. Figure 3 FIG. 26 is a cross-sectional structural view taken along the line B-B in FIG.

[0037] Figure 6 FIG. Figure 3 FIG. 32 is a cross-sectional structural view taken along the line C-C in FIG.

[0038] Figure 7 FIG. 36 is a perspective structural view of the outer cover 3 after being turned over;

[0039] Figure 8 FIG. 40 is a perspective structural view of the slider body 10;

[0040] Figure 9 FIG. 44 is a perspective structural view of the locking member 5;

[0041] Figure 10 FIG. 48 is another perspective structural view of the locking member 5;

[0042] Figure 11 FIG. 52 is a perspective structural view of the movable rod 7;

[0043] Figure 12 FIG. 56 is an exploded structural view of the self-locking slider 100a;

[0044] Figure 13 FIG. 60 is a structural view of the self-locking slider 100a in a top view direction, and the outer cover is omitted in the figure, but the following cross-sectional views are drawn according to the situation where the outer cover is installed;

[0045] Figure 14 FIG. Figure 13Schematic cross-sectional structure diagram in the A-A direction;

[0046] Figure 15 is Figure 13 Schematic cross-sectional structure diagram in the B-B direction;

[0047] Figure 16 is the three-dimensional structure diagram of the slider body 10a;

[0048] Figure 17 is the three-dimensional structure diagram of the upper locking member 5a;

[0049] Figure 18 is the three-dimensional structure diagram of the upper locking member 5a from another perspective;

[0050] Figure 19 is the three-dimensional structure diagram of the movable rod 7a;

[0051] Figure 20 is the exploded structure diagram of the self-locking slider 100b;

[0052] Figure 21 is the structure diagram of the self-locking slider 100b in the top view direction, the outer cover is omitted in the figure, but the following cross-sectional views are drawn according to the situation with the outer cover installed;

[0053] Figure 22 is Figure 21 Schematic cross-sectional structure diagram in the A-A direction;

[0054] Figure 23 is Figure 21 Schematic cross-sectional structure diagram in the B-B direction;

[0055] Figure 24 is the three-dimensional structure diagram of the slider body 10b;

[0056] Figure 25 is the three-dimensional structure diagram of the movable rod 7b;

[0057] Figure 26 is the three-dimensional structure diagram of the spring piece 5b. Specific embodiments

[0058] Embodiment 1:

[0059] As Figures 1 to 11As shown, the present invention also provides a zipper (not shown in the figure), which includes a tape and a self-locking slider 100. The self-locking slider 100 is slidably disposed on the tape. The self-locking slider 100 includes a first wing plate 1 and a second wing plate 2 which are vertically arranged, and a tooth channel 22 is formed therebetween; an outer cover 3 is disposed on the first wing plate 1, and a receiving space 4 is formed between the outer cover 3 and the first wing plate 1; a locking member 5 is further disposed on the receiving space 4. The locking member 5 includes a support portion 52 and a claw portion 51 that can swing around the support portion 52 and insert into the tooth channel 22; a first elastic body 8 is further disposed in the receiving space 4, and the first elastic body 8 can act on the locking member 5 to make the claw portion 51 insert into the tooth channel 22; an unlocking portion 31 is further included. When viewed longitudinally (i.e., along the Figure 3 X-axis direction in the figure), the unlocking portion 31 and the first elastic body 8 are arranged horizontally left and right; the unlocking portion 31 can longitudinally move by using the space provided by the receiving space 4 to have an unlocking position and a locking position. When the unlocking portion 31 moves to the unlocking position, the unlocking portion 31 transmits an unlocking force to the locking member 5 to reduce the depth of insertion of the claw portion 51 into the tooth channel 22. When the unlocking portion 31 is in the locking position, the locking member 5 loses the unlocking force, and the first elastic body 8 makes the claw portion 51 of the locking member 5 swing to increase the depth of insertion into the tooth channel 22.

[0060] The following will detail each specific implementation detail structure and its method as necessary. Except for those clearly stated as equivalent or alternative implementation schemes, the various implementation detail schemes disclosed below can be selectively applied or combined and applied in one embodiment even if there is no direct association or synergy in terms of function.

[0061] Such as Figure 2 、 Figure 7 and Figure 8As shown, a connecting post 21 is provided between the first wing plate 1 and the second wing plate 2. The first wing plate 1, the second wing plate 2 and the connecting post 21 together form a slider body 10. The outer cover 3 extends from one side of the first wing plate 1 across to the other side, so that a flat storage space 4 is formed between the outer cover 3 and the first wing plate 1. The outer cover 3 includes a cover top plate 30 and cover side walls 32 arranged on the left and right sides of the cover top plate 30. A cover slider 33 is provided on the cover side wall 32. A notch 34 is formed at the front end inside the cover top plate 30. Wing plate chutes 11 are provided on the left and right sides of the first wing plate 1. A blocking groove wall 111 is provided at the front end of the wing plate chute 11, and a tail blocking block 112 is provided at the rear end of the wing plate chute 11. During installation, by means of the notch 34, the cover slider 33 of the outer cover 3 slides into the wing plate chute 11, and then the tail blocking block 112 is bent to block the rear end of the wing plate chute 11, so that the cover slider 33 is restricted within the wing plate chute 11. In this way, the outer cover 3 can slide longitudinally on the first wing plate 1 but cannot be separated from the slider body 10. Moreover, the outer cover 3 straddles the first wing plate 1. An unlocking portion 31 is integrally formed inside the cover top plate 30. The unlocking portion 31 is a convex portion extending downward into the storage space 4 and is located at the rear end position of the cover top plate 30. The unlocking portion 31 can slide longitudinally in the storage space 4 as the outer cover 3 slides longitudinally (of course, in other embodiments, the unlocking portion 31 can also be a concave portion recessed upward. At this time, the structure of the movable rod to be described below is appropriately adjusted so that a part of it extends into the concave portion; or, the unlocking portion 31 and the outer cover 3 are of a split structure and are installed on the outer cover 3; or, a part of the unlocking portion 31 is received in the storage space 4, and a part is exposed outside the storage space 4 to receive driving energy. At this time, the outer cover 3 cannot slide).

[0062] As Figure 9 and Figure 10 shown, the locking member 5 includes a transverse connecting rod 54. A pair of the support portions 52 are respectively disposed at the left and right ends of the transverse connecting rod 54. The claw portion 51 is provided on the transverse connecting rod 54. A first force receiving portion 53 and a second force receiving portion 55 are also provided on the transverse connecting rod 54. When viewed horizontally (i.e., along the Y-axis direction in Figure 3 ), the claw portion 51, the first force receiving portion 53, and the second force receiving portion 55 are located on the same side of the support portion 52. A pair of wing plate pits 12 are provided on the first wing plate 1 and are horizontally and separately disposed on the left and right. The openings of the wing plate pits 12 face upward, and the support portion 52 is positioned on the wing plate pits 12. The installation and positioning of the locking member 5 are very convenient.

[0063] As Figure 2 and Figure 3As shown, the locking member 5 and the first elastic body 8 are of a split structure. The structure of the first elastic body 8 can be diverse. In this embodiment, the first elastic body 8 is an elastic rod, having a fixed end 81 and a free end 82 longitudinally disposed front and back. A longitudinally extending insertion hole 13 is further provided in the accommodation space 4. The insertion hole 13 is provided on the first wing plate 1. The fixed end 81 of the first elastic body 8 is inserted into the insertion hole 13. By impacting the outer periphery of the tail end of the insertion hole 13 to deform and narrow it, the first elastic body 8 is prevented from running out. The free end 82 of the first elastic body 8 is arranged above the first force-receiving portion 53 on the locking member 5 for bearing the locking force. In this way, the free end 82 of the first elastic body 8 can apply a downward locking force to the first force-receiving portion 53, restricting the upward swing amplitude of the first force-receiving portion 53 and causing the claw portion 51 to be inserted into the chain tooth channel 22 to maintain the locked state. In addition, the first elastic body 8 can set its own longitudinal length according to the longitudinal extension amplitude in the accommodation space 4 to form an appropriate locking force, which is beneficial to reducing the height of the accommodation space 4.

[0064] As Figures 2 to 11As shown, in other embodiments, the unlocking portion 31 can directly contact and drive the locking member 5. However, in this embodiment, a power transmission member is provided between them, specifically as follows: An active rod 7 capable of longitudinal sliding and a second elastic body 6 for moving the active rod 7 back to its original position are further provided in the receiving space 4. Looking longitudinally, the active rod 7 and the first elastic body 8 are arranged side by side horizontally, improving the utilization rate of the receiving space 4. The unlocking portion 31 transmits the unlocking force to the locking member 5 through the active rod 7. The active rod 7 and the unlocking portion 31 are of a split structure. In this way, not only is the manufacturing of the outer cover 3 facilitated, but also the installation between the active rod 7 and the locking member 5 can be completed conveniently. The active rod 7 includes a main rod portion 70 and a side convex block 72 provided at the tail of the main rod portion 70. The side convex block 72 extends to the rear of the elastic body installation cavity 15 which will be described below. An inclined working surface 710 with a lower front and a higher rear is provided on the head 71 of the main rod portion 70. An inclined working surface 550 with a lower front and a higher rear is provided on the second force receiving portion 55 (in other embodiments, only one of the head 71 and the second force receiving portion 55 may be provided with an inclined working surface). A first guiding mechanism 14 accommodated in the receiving space 4 is provided on the first wing plate 1. The active rod 7 is slidably arranged on the first guiding mechanism 14. The first guiding mechanism 14 is a longitudinally extending tunnel, which can not only provide sliding guidance for the active rod 7 but also limit its up-and-down and left-and-right displacements. An elastic body installation cavity 15 accommodated in the receiving space 4 is provided on the first wing plate 1. The elastic body installation cavity 15 extends longitudinally and is located on the side of the first guiding mechanism 14. The second elastic body 6 is restricted on the elastic body installation cavity 15 and presses against the side convex block 72 of the active rod 7. The elastic body installation cavity 15 is used to limit the up-and-down and left-and-right displacements of the second elastic body 6.

[0065] According to the above technical solution, as Figure 6As shown, when the outer cover 3 does not bear an external longitudinal pulling force, the unlocking portion 31 is in the locked position. The free end 82 of the first elastic body 8 restricts the upward swing amplitude of the first force-receiving portion 53, causing the claw portion 51 to pass through the first wing plate 1 and insert into the tooth channel 22, and insert between a pair of front and rear arranged teeth in the tooth channel 22, so that the self-locking slider 100 can be positioned at a specific position, keeping the zipper in a stable closed range. When a longitudinal forward pulling force F is applied to the outer cover 3, the outer cover 3 slides longitudinally forward with the unlocking portion 31, moving the unlocking portion 31 to the unlocking position. The unlocking portion 31 transmits the unlocking force by pressing against the inclined working surface 550 of the locking member 5 through the inclined working surface 710 of the movable rod 7, causing the claw portion 51 of the locking member 5 to swing upward around the supporting portion 52 and reduce the depth inserted into the tooth channel 22, thus disengaging from the teeth in the tooth channel 22. At this time, the self-locking slider 100 can be pulled forward and slide. At the same time, the first force-receiving portion 53 of the locking member 5 presses against the first elastic body 8 to deform it and generate a resilience force in the opposite direction to the swinging direction of the locking member 5, and the movable rod 7 presses against the second elastic body 6 to deform it and generate a resilience force in the opposite direction to the advancing direction of the movable rod 7. When the pulling force F acting on the outer cover 3 is eliminated, the movable rod 7 is reset under the resilience force of the second elastic body 6, and at the same time, it reversely drives the unlocking portion 31 and the outer cover 3 to return to the original position. The locking member 5 is reset under the resilience force of the first elastic body 8, causing the claw portion 51 to swing around the supporting portion 52 to increase the depth inserted into the tooth channel 22 and re-insert between a pair of front and rear arranged teeth.

[0066] According to the above technical solution, compared with the prior art CN201010002205.5, the beneficial technical effects of the present invention are as follows: First, since a receiving space 4 is formed between the outer cover 3 and the first wing plate 1, in this way, on the first wing plate 1, the outer cover 3 and the first wing plate 1, which have an extension amplitude both horizontally and longitudinally, are utilized to form the receiving space 4 with a wide-width feature, providing sufficient installation and receiving space for internal components such as the locking member 5 and the first elastic body 8, which is beneficial to reducing the damage to the overall appearance of the self-locking slider 100 caused by their exposure. Second, when viewed longitudinally, the first elastic body 8 and the unlocking portion 31 are arranged side by side horizontally. In this way, they adopt a horizontally side-by-side layout mode to adapt to the wide-width feature of the receiving space 4, improving the utilization rate of the receiving space 4. Compared with the layout mode of stacking them vertically, it is also beneficial to reduce the height of the receiving space 4.

[0067] Embodiment 2:

[0068] As Figures 12 to 19As shown, the self-locking slider 100a in the second embodiment has a similar structure to the self-locking slider 100 in the first embodiment. The main differences between them are described in detail below. The other structures of the self-locking slider 100a can be understood by referring to the relevant drawings and the above introduction to the self-locking slider 100.

[0069] The locking member 5a includes a transverse connecting rod 54a, a pair of supporting parts 52a are disposed at the left and right ends of the transverse connecting rod 54a, and a first force-bearing part 53a, a second force-bearing part 55a, and a claw part 51a are disposed on the transverse connecting rod 54a. In a transverse view, the supporting part 52a is located between the first force-bearing part 53a and the claw part 51a. A pair of wing plate pits 12a are disposed on the first wing plate 1a, and the pit openings of the wing plate pits 12a are arranged upward, and the supporting part 52a is positioned on the wing plate pits 12a.

[0070] The first elastic body 8a is a leaf spring (in other embodiments, the first elastic body 8a can also be an elastic rod, such as a metal rod). A boss 16a is provided on the first wing plate 1a and is accommodated in the storage space 4a. The height of the fixed position of the fixed end 81a of the first elastic body 8a relative to the first wing plate 1a is smaller than the height of the boss 16a relative to the first wing plate 1a. The boss 16a is arranged corresponding to the middle part of the first elastic body 8a between the fixed end 81a and the free end 82a and supports the middle part. The free end 82a of the first elastic body 8a is arranged below the first force-bearing portion 53a. In this way, the fixed end 81a of the first elastic body 8a sinks and the free end 82a tilts upward to support the first force-bearing portion 53a from bottom to top, so that an upward locking force can be applied to the first force-bearing portion 53a, so that the claw portion 51a is inserted into the chain tooth channel 22a to maintain a locked state. In addition, Figure 19 As shown, the movable rod 7a includes a main rod portion 70a and a side projection 72a disposed at the tail of the main rod portion 70a. The second elastic body 6a presses on the side projection 72a of the movable rod 7a.

[0071] Implementation method three:

[0072] like Figures 20 to 26 As shown, the self-locking slider 100b in the third embodiment has a similar structure to the self-locking slider 100 in the first embodiment. The main differences between them are described in detail below. The other structures of the self-locking slider 100b can be understood by referring to the relevant drawings and the above introduction to the self-locking slider 100.

[0073] The structures of the locking member and the first elastic body in this embodiment are different from those of the above two embodiments. The locking member and the first elastic body are integrally structured to form a spring piece 5b. The spring piece 5b includes a substrate portion 51b, a crest portion 52b, and a claw portion 53b arranged in sequence. The crest portion 52b includes an uphill portion 521b, a flat portion 522b, and a downhill portion 523b that are longitudinally arranged in sequence, connected to the substrate portion 51b and extending obliquely upward relative to the substrate portion 51b, a flat portion 522b, and a downhill portion 523b that extends obliquely downward relative to the flat portion 522b. The claw portion 53b is connected to the downhill portion 523b. The substrate portion 51b is fixed to the first wing plate 1 and forms a support portion. An upwardly warped front tongue 54b is formed on the flat portion 522b, and the front tongue 54b constitutes the first elastic body. To fix the spring piece 5b, a vertical insertion plate 17b is provided on the first wing plate 1b and is received in the storage space 4. An avoidance through hole ( Figure 23 not marked as it is blocked by the substrate portion 51b) is provided on the vertical insertion plate 17b, and the substrate portion 51b is inserted into the avoidance through hole; a rear tongue 55b that warps upward is formed on the substrate portion 51b. The vertical insertion plate 17b is located between the rear tongue 55b and the crest portion 52b, and the rear tongue 55b is used to prevent the spring piece 5b from detaching from the vertical insertion plate 17b.

[0074] As Figure 24 shown, a second guiding mechanism 14b is provided on the first wing plate 1b and is received in the storage space 4b. The second guiding mechanism 14b includes a left arc-shaped concave wall 141b and a right arc-shaped concave wall 142b that are arranged at intervals left and right and extend longitudinally. A clamping cavity 143b is formed between them. The movable rod 7b includes a main rod portion 70b and a branch rod portion 71b. The main rod portion 70b slides on the clamping cavity 143b, and the displacement of the main rod portion 70b in the left-right and up-down directions is restricted by the clamping cavity 143b. The branch rod portion 71b extends below the spring piece 5b and can reduce the depth of insertion of the claw portion 53b into the tooth channel 22b by jacking up the downhill portion 523b when the unlocking portion 31b is in the unlocking position.

[0075] As Figure 20 、 Figure 21 and Figure 22As shown, an installation table 18b is provided on the first wing plate 1b. The installation table 18b is arranged in front of the main rod portion 70b. A table portion pit 180b with an opening facing the main rod portion 70b is provided on the installation table 18b, and the table portion pit 180b forms a first positioning portion. A rod portion pit 701b with an opening facing the table portion pit 180b is provided on the main rod portion 70b, and the rod portion pit 701b forms a second positioning portion. The second elastic body 6b is a compression spring. One end of the second elastic body 6b is installed on the table portion pit 180b, and the other end is installed on the rod portion pit 701b. A groove (not shown in the figure) adapted to the installation table 18b is provided on the inner side wall of the outer cover 3b, and the outer cover 3b straddles the installation table 18b through the groove.

Claims

1. Self-locking slider for zipper, comprising a first wing plate and a second wing plate which are arranged up and down, and a chain tooth channel is formed between them; an outer cover is arranged on the first wing plate, and it is characterized in that, A storage space is formed between the outer cover and the first wing plate; a locking member is provided on the storage space, the locking member includes a support portion and a claw portion that can swing around the support portion and be inserted into the chain tooth channel; a first elastic body is provided in the storage space, the first elastic body can act on the locking member to insert the claw portion into the chain tooth channel; an unlocking portion is also provided, and the unlocking portion and the first elastic body are arranged horizontally left and right when viewed in the longitudinal direction; The unlocking portion can use the space provided by the storage space to move longitudinally so as to have an unlocking position and a locking position. When the unlocking portion moves to the unlocking position, the unlocking portion transmits an unlocking force to the locking member to reduce the depth of the claw portion inserted into the chain tooth channel. When the unlocking portion is in the locking position, the locking member loses the unlocking force, and the first elastic body causes the claw portion of the locking member to swing to increase the depth of insertion into the chain tooth channel. The outer cover can slide longitudinally on the first wing plate; the unlocking portion is arranged on the outer cover and can slide longitudinally in the storage space accordingly; When viewed in the transverse direction, the claw portion and the support portion are arranged front to back longitudinally; The first elastic body has a fixed end and a free end which are arranged front and back in the longitudinal direction, the fixed end is fixed to the first wing plate, and the free end can apply a locking force in the up-down direction to the locking member; A movable rod capable of longitudinal sliding and a second elastic body for moving and resetting the movable rod are also provided in the storage space. When viewed longitudinally, the movable rod and the first elastic body are arranged left and right in the transverse direction; the unlocking portion transmits the unlocking force to the locking member through the movable rod.

2. The self-locking slider for a zipper according to claim 1, characterized in that, A boss accommodated in the storage space is provided on the first wing plate, and the height of the fixed position of the fixed end of the first elastic body relative to the first wing plate is smaller than the height of the boss relative to the first wing plate, and the boss is arranged corresponding to the middle part of the first elastic body between the fixed end and the free end and supports the middle part, and the free end of the first elastic body is arranged below the first force-bearing part on the locking member for bearing the locking force, and the supporting part is located between the first force-bearing part and the claw part when viewed laterally, and in the locked state, the fixed end of the first elastic body sinks and the free end is tilted upward to support the first force-bearing part, so that the claw part is inserted into the chain tooth channel to maintain the locked state.

3. The self-locking pull head for a zipper according to claim 1, characterized in that, An insertion hole is provided on the first wing plate and is accommodated in the storage space and extends longitudinally. The fixed end of the first elastic body is inserted into the insertion hole, and the free end is arranged above the first force-bearing part on the locking member for bearing the locking force; viewed from the horizontal direction, the first force-bearing part and the claw part are located on the same side of the supporting part. In the locked state, the free end of the first elastic body can limit the upward swing amplitude of the first force-bearing part so that the claw part is inserted into the chain tooth channel to maintain the locked state.

4. The self-locking slider for a zipper according to claim 1, wherein, The first elastic body is a leaf spring or an elastic rod.

5. The self-locking slider for a zipper according to claim 1, wherein, The locking member includes a transverse connecting rod, a pair of supporting parts are placed at the left and right ends of the transverse connecting rod, the claw part is arranged on the transverse connecting rod, and a pair of wing plate pits are arranged on the first wing plate and are separated from each other along the left and right sides in the transverse direction. The pit openings of the wing plate pits are arranged upward, and the supporting part is positioned on the wing plate pits.

6. The self-locking slider for a zipper according to claim 1, characterized in that, The first wing plate is provided with a first guide mechanism accommodated in the storage space, and the movable rod is slidably disposed on the first guide mechanism.

7. The self-locking slider for a zipper according to claim 1, wherein, The first wing plate is provided with an elastic body installation cavity accommodated in the storage space, the elastic body installation cavity extends longitudinally, and the second elastic body is restricted on the elastic body installation cavity and pressed on the movable rod.

8. The self-locking slider for a zipper according to claim 1, wherein, The locking member and the first elastic body are integrated into a spring sheet.

9. The self-locking slider for a zipper according to claim 8, characterized in that, The spring sheet includes a base plate portion and a crest portion, the crest portion includes an upslope portion, a flat portion, and a downslope portion, which are connected to the base plate portion and extend upwardly obliquely relative to the base plate portion and are arranged longitudinally in sequence, the claw portion is connected to the downslope portion, the base plate portion constitutes the support portion, and an upward-curved front tongue piece is formed on the flat portion, and the front tongue piece constitutes the first elastic body.

10. The self-locking slider for a zipper according to claim 9, characterized in that, The first wing plate is provided with a vertical plug plate accommodated in the storage space, the vertical plug plate is provided with an avoidance hole, the base plate portion of the spring sheet is plugged into the avoidance hole; an upwardly tilted rear tongue piece is formed on the base plate portion, the vertical plug plate is located between the rear tongue piece and the crest portion, and the rear tongue piece is used to prevent the spring sheet from detaching from the vertical plug plate.

11. The self-locking slider for a zipper according to claim 9, wherein, A movable rod capable of longitudinal sliding and a second elastic body for moving the movable rod to reset are also provided in the storage space, and the unlocking portion transmits an unlocking force to the locking member through the movable rod; a second guide mechanism accommodated in the storage space is provided on the first wing plate, and the movable rod includes a main rod portion and a support rod portion, the main rod portion is slidably arranged on the second guide mechanism, and the support rod portion extends to below the spring sheet and can reduce the depth of the claw portion inserted into the chain tooth channel by lifting the downslope portion when the unlocking portion is in the unlocking position.

12. The self-locking slider for a zipper according to claim 11, wherein, A mounting platform is provided on the first wing plate, the mounting platform is provided in front of the main rod, a first positioning portion is provided on the mounting platform, and a second positioning portion is provided on the main rod; the second elastic body is a compression spring, one end of the second elastic body is positioned on the first positioning portion, and the other end is positioned on the second positioning portion.

13. The self-locking slider for a zipper according to claim 12, wherein, A groove adapted to the mounting platform is arranged on the inner side wall of the outer cover, and the outer cover rides on the mounting platform through the groove.

14. A zipper, including a tape, characterized in that, It also includes the self-locking slider according to any one of claims 1 to 13, wherein the self-locking slider is slidably disposed on the chain belt.

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