CN108741458B

CN108741458B - Zipper

Info

Publication number: CN108741458B
Application number: CN201810736100.9A
Authority: CN
Inventors: 涂西苗
Original assignee: Haining Zunjue Zipper Co ltd
Current assignee: Haining Zunjue zipper Co.,Ltd.
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2020-12-29
Anticipated expiration: 2038-07-06
Also published as: CN108741458A

Abstract

The invention relates to a zipper, which comprises a woven belt, zipper teeth and a zipper head, wherein the zipper teeth are positioned on one side of the woven belt and used for drawing or separating the woven belt, the zipper head comprises an upper lock plate, an arched hook, a pulling piece, a zipper dividing block and a lower lock plate, the upper lock plate and the lower lock plate are arranged oppositely, the arched hook is fixed on a first surface, far away from the lower lock plate, of the upper lock plate, one end of the pulling piece is movably connected with the arched hook, two ends of the zipper dividing block are fixedly connected with the upper lock plate and the lower lock plate respectively, the zipper head further comprises a shifting device provided with a shifting rod, one end of the arched hook is positioned above the zipper dividing block, and one end of the shifting rod penetrates through a first sliding chute arranged in the arched hook and extends into the zipper dividing block through the arched hook and the upper lock plate. The invention can cut off the dead thread end through the blade.

Description

Zipper

Technical Field

The invention relates to the field of articles for daily use, in particular to a zipper.

Background

Slide fasteners are connecting members for joining or separating articles by means of continuously arranged fastener elements, and are widely used for clothing, bags, tents, and the like. Fasteners, which may be formed of two strips each having a row of metal or plastic teeth, are used to attach to the edge of an opening (e.g., a garment or bag opening), a slider is provided to pull the two rows of teeth into an interlocked position to close the opening, or may be attached to something (as a suspended or dropped object) to tighten, stabilize or guide the chain of the item. In the prior art, people often encounter the situation of zipper blocking when using the zipper, which affects the use of the zipper and brings trouble to people.

Disclosure of Invention

The invention provides a zipper based on the above problems, which can prevent the zipper from being blocked by a thread end.

In view of this, an embodiment of the present invention provides a zipper, including a cloth tape, a zipper tooth and a zipper head, where the zipper tooth is located on one side of the cloth tape and is used to draw the cloth tape together or separate the cloth tape, the zipper head includes an upper lock plate, an arcuate hook, a pull tab, a zipper dividing block and a lower lock plate, and is characterized in that the upper lock plate and the lower lock plate are arranged opposite to each other, the arcuate hook is fixed on a first surface of the upper lock plate away from the lower lock plate, one end of the pull tab is movably connected with the arcuate hook, and two ends of the zipper dividing block are respectively fixedly connected with the upper lock plate and the lower lock plate, the zipper head further includes a toggle device provided with a toggle rod, one end of the arcuate hook is arranged above the zipper dividing block, one end of the toggle rod passes through a first sliding groove arranged in the arcuate hook and extends into the zipper dividing block through the arcuate hook and the upper lock plate, and one end of the poke rod extends to the bottom of the sub-chain block, the other end of the poke rod extends out of the outer side of the first sliding groove, and a blade is arranged at one end of the poke rod, which is positioned at the bottom of the sub-chain block.

Furthermore, the first sliding groove penetrates through the arched hook, and the size of one end, extending out of the first sliding groove, of the poke rod is larger than the width of the first sliding groove.

Furthermore, the upper lock plate is provided with a second sliding groove corresponding to the first sliding groove, the second sliding groove penetrates through the upper lock plate, and the poke rod penetrates through the first sliding groove and the second sliding groove respectively.

Further, the toggle device further comprises a buckle assembly arranged in the first sliding groove, the buckle assembly comprises a first buckle interface and a second buckle interface, and the side wall of the toggle rod is correspondingly provided with a first buckle device and a second buckle device which are respectively connected with the first buckle interface and the second buckle interface in a buckle mode.

Further, the shifting device further comprises a reset assembly arranged in the second sliding groove, the reset assembly comprises a first elastic piece and a second elastic piece, one end of the first elastic piece is connected to the inner wall of the second sliding groove, the other end of the first elastic piece is connected with the side wall of the shifting rod, one end of the second elastic piece is connected to the inner wall of the second sliding groove, and the other end of the second elastic piece is connected with the side wall of the shifting rod.

Furthermore, the first elastic piece and the second elastic piece are respectively positioned at two ends of the poke rod.

Furthermore, the first elastic piece and the second elastic piece are symmetrically arranged at two ends of the poke rod, and the poke rod is stabilized at the central position of the second sliding groove through the elastic action of the first elastic piece and the second elastic piece.

Furthermore, a cavity is formed in the chain dividing block, the blade is located in the cavity, a first clamping groove corresponding to the blade is formed in the inner side of the chain dividing block, and the cutting edge of the blade is opposite to the first clamping groove.

Furthermore, a second clamping groove is formed in the outer side of the chain dividing block, the first clamping groove and the second clamping groove are oppositely arranged, the blade is divided into a first blade and a second blade, the cutting edge of the first blade is opposite to the first clamping groove, and the cutting edge of the second blade is opposite to the second clamping groove.

Further, the distance from one end of the first blade or the second blade connected with the poke rod to the cutting edge is less than half of the width of the cavity.

The zipper in the technical scheme provided by the embodiment of the invention comprises a poking device provided with a poking rod, wherein one end of an arched hook is arranged above a sub-chain block, one end of the poking rod penetrates through a first sliding groove arranged in the arched hook and penetrates through the arched hook and an upper locking plate to extend into the sub-chain block, one end of the poking rod extends to the bottom of the sub-chain block, the other end of the poking rod extends out of the first sliding groove, and one end of the poking rod, which is positioned at the bottom of the sub-chain block, is provided with a blade. When the thread end on the clothes is clamped into the zipper head and the zipper teeth in the using process, the clamped thread end can be cut off by the blade.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an overall structure of a slide fastener according to an embodiment of the present invention;

FIG. 2 is a schematic view showing a separating structure of a slide fastener according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a toggle device according to an embodiment of the present invention;

fig. 4 is a schematic front structure diagram of a card interface according to an embodiment of the present invention;

fig. 5 is a schematic side sectional view of a card interface according to an embodiment of the present invention;

description of reference numerals:

100-a zipper head; 11-locking plate; 12-a bow hook; 13-a pull tab; 131-mounting holes; 14-a chain splitting block; 141-a first card slot; 142-a second card slot; 15-lower lock plate; 16-a toggle device; 161-a poker bar; 162-a blade; 162 a-first blade; 162 b-a second blade; 163-first part; 164-a second portion; 165-third part; 166-a reset assembly; 166 a-a first resilient member; 166 b-a second resilient member; 167-a knife handle; 17-a first runner; 18-a second runner; 19-a snap assembly; 191 — a first card interface; 192-a first snap fit device; 193-second snap means.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be understood that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that when a device is referred to as being "mounted on" another device, it can be directly on the other device or intervening devices may also be present. When a device is considered to be "connected" to another device, it may be directly connected to another ball or intervening devices may be present. The terms "parallel," "flush," "one side," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 and 2, the zipper includes a cloth tape (not shown), a zipper tooth (not shown) and a zipper head 100, the zipper tooth is located at one side of the cloth tape and is used for drawing the cloth tape together or separating the cloth tape, the zipper head 100 includes an upper lock plate 11, an arcuate hook 12, a pull tab 13, a zipper dividing block 14 and a lower lock plate 15, and is characterized in that the upper lock plate 11 and the lower lock plate 15 are oppositely arranged, the arcuate hook 12 is fixed on a first surface of the upper lock plate 11 far away from the lower lock plate 15, one end of the pull tab 13 is movably connected with the arcuate hook 12, two ends of the zipper dividing block 14 are fixedly connected with the upper lock plate 11 and the lower lock plate 15 respectively, the zipper head 100 further includes a toggle device 16 provided with a toggle rod 161, one end of the arcuate hook 12 is arranged above the zipper dividing block 14, and one end of the toggle rod 161 passes through a first sliding groove 17 arranged in the arcuate hook 12 and extends through the arcuate hook 12 and the upper lock plate 11 Extend to in the branch chain piece 14, just one end of poker rod 161 extends to the bottom of branch chain piece 14, the other end of poker rod 161 extends the first spout 17 outside, the poker rod 161 is located the one end of branch chain piece 14 bottom is provided with blade 162.

In some embodiments of the present invention, the upper locking plate 11 is disposed opposite to the lower locking plate 15, and the shape of the upper locking plate 11 is substantially the same as the shape of the lower locking plate 15, specifically, one side of the upper locking plate 11 opposite to the lower locking plate 15 is a first side plate (not shown) of the upper locking plate 11, two side plates (not shown) perpendicularly connected to and approximately parallel to the first side plate of the upper locking plate 11 are a second side plate (not shown) and a third side plate (not shown) of the upper locking plate 11, the side of the lower locking plate 15 opposite to the upper locking plate 11 is a first side plate of the lower locking plate, two side plates perpendicularly connected to and approximately parallel to the first side plate of the lower locking plate 15 are a second side plate and a third side plate of the lower locking plate 15, the first side plate of the upper locking plate 11 is parallel to the first side surface of the lower locking plate 15, the second side plate of the upper locking plate 11 is aligned with the second side plate of the lower locking plate 15, and the second side plate of the upper locking plate 11 is aligned with the second side plate of the lower locking plate 15 A first gap (not shown) is formed between the second side plates of the lower locking plate 15, the third side plate of the upper locking plate 11 is aligned with the third side plate of the lower locking plate 15, and a second gap (not shown) is formed between the third side plate of the upper locking plate 11 and the third side plate of the lower locking plate 15.

In some embodiments of the present invention, the zipper head 100 and each component in the zipper head 100 may be made of a metal material, a plastic material, or a resin material, and those skilled in the art may select zipper heads 100 with different materials according to actual situations.

In some embodiments of the present invention, one end of the pull tab 13 is movably connected to the arcuate hook 12, specifically, a mounting hole 131 is formed in one side of the pull tab 13, the mounting hole 131 is rotatably sleeved on the arcuate hook 12, two ends of the arcuate hook 12 are fixed to the upper lock plate 11, and the pull tab 13 can reciprocate on the arcuate hook 12 through the mounting hole 131, so as to drive the zipper head 100 to reciprocate, and control the opening, closing or separating of the zipper.

In some embodiments of the present invention, two ends of the chain dividing block 14 are respectively and fixedly connected to the upper locking plate 11 and the lower locking plate 15, specifically, the chain dividing block 14 may be in a triangular column shape, a cylindrical shape, a trapezoidal column shape with a cross section, or even an irregular column shape, and a person skilled in the art may select the chain dividing blocks 14 with different shapes according to actual situations, so that the chain dividing block 14 is used for drawing together and separating the teeth more smoothly.

When the thread end on the clothes is clamped into the zipper head 100 and the zipper teeth, the poking rod 161 can be moved along the first sliding groove 17 by poking, so that the blade 162 connected with the poking rod 161 is driven to move, when the poking rod 161 moves to one end of the first sliding groove 17, the blade 162 can cut off the clamped thread end, and the zipper head 100 can be continuously folded or separated from the cloth belt.

Further, the first sliding slot 17 penetrates through the arcuate hook 12, and a dimension of an end of the poke rod 161 extending out of the first sliding slot 17 is larger than a width of the first sliding slot 17.

In some embodiments of the present invention, as shown in fig. 2, the first sliding slot 17 is disposed in the arcuate hook 12, and specifically, since one end of the arcuate hook 12 is disposed above the zipper-dividing block 14, one end of the arcuate hook 12 is fixedly connected to the zipper-dividing block 14 through the upper lock plate 11. Preferably, the first sliding slot 17 is disposed on an outer surface of one end of the arcuate hook 12, such that the first sliding slot 17 is located above the chain-dividing block 14. Further, the shape of the first sliding slot 17 may be a rectangle, or a rectangle with a circular arc edge, but is not limited thereto, the first sliding slots 17 with different shapes may be respectively disposed according to actual needs, and the first sliding slot 17 has a certain length, so that the first sliding slot 17 is used for enabling the tap lever 161 to slide in the first sliding slot 17 in a reciprocating manner.

Preferably, as shown in fig. 3, the first sliding slot 17 penetrates through the arcuate hook 12, and a dimension of an end of the poke rod 161 extending out of the first sliding slot 17 is larger than a width of the first sliding slot 17. Specifically, the poke rod 161 may be a cylindrical shape, an annular cylinder, or an irregular cylinder, and cylinders with different shapes may be respectively provided as the poke rod 161 according to actual needs, and the poke rod 161 has a certain length, so that the poke rod 161 can be repeatedly poked. It should be noted that the poke rod 161 passes through the first sliding slot 17 and the poke rod 161 can slide in the first sliding slot 17 in a reciprocating manner, at this time, a portion of the poke rod 161 extending out of the outer side surface of the first sliding slot 17 is a first portion 163, a portion of the poke rod 161 contacting with the first sliding slot 17 is a second portion 164, the poke rod 161 is in a shape of a cylinder, and in some embodiments of the present invention, the size of the cross section of the poke rod 161 is the size of the poke rod 161. The size of the first portion 163 is larger than the size of the second portion 164. It will be appreciated that the size of second portion 164 is equal to or substantially equal to the width of first sliding groove 17, i.e. the size of first portion 163 is greater than the width of first sliding groove 17, so that first portion 163 is clamped on first sliding groove 17 to prevent first portion 163 from sliding down first sliding groove 17 during the process of toggling and repeated sliding of toggle bar 161. It should be understood that the tap lever 161 is divided into the first portion 163, the second portion 164 and a third portion 165 below the second portion 164, and the third portion 165 is the same size as the second portion 164, i.e. the tap lever 161 has a column structure with a wide top and a narrow bottom as a whole.

Further, as shown in fig. 4, the toggle device 16 further includes a buckle assembly 19 disposed in the first sliding slot 17, the buckle assembly 19 includes a first buckle interface 191 and a second buckle interface (not shown), and a first buckle device 192 and a second buckle device 193 for being in buckle connection with the first buckle interface 191 and the second buckle interface are correspondingly disposed on the side wall of the toggle rod 161 respectively.

In some embodiments of the present invention, the first sliding groove 17 has a certain length, the first sliding groove 17 has a long side and a short side, two ends of the long side of the first sliding groove 17 are provided with the fastening components 19, one end of the long side of the first sliding groove 17 is provided with the first fastening interface 191, the other end is provided with the second fastening interface, and the toggle rod 161 slides back and forth at two ends of the long side of the first sliding groove 17. The first card interface 191 is the same as the second card interface in shape and size. The poke rod 161, the first clamping interface 191 and the side wall corresponding to the second clamping interface are provided with the first fastening device 192 and the second fastening device 193, the first fastening device 192 is used for fastening and connecting the first fastening device 192 and the first clamping interface 191 when the poke rod 161 slides to one end of the long edge of the first sliding groove 17. The first catch 192 and the second catch 193 are identical in shape and size. The second locking device 193 is configured to enable the second locking device 193 to be locked with the second locking interface when the shifting rod 161 slides to the other end of the long edge of the first sliding slot 17. Wherein, the mode that the buckle is connected has the multiple, can be the elasticity buckle, still can be for detachable buckle, also can be for stirring the elasticity buckle, and the concrete structure of buckle that needs can be selected according to actual conditions to technical staff in the field. It should be noted that, because the first card interface 191 and the second card interface 191 and the first card interface 191 and the second card interface are respectively at the two ends of the first sliding chute 17, the first card interface 191 and the second card interface are symmetrically arranged, the specific structure of the first card interface 191 provided in fig. 4 and 5 can also be applied to the specific structure of the second card interface, and for a brief description, the specific structure of the second card interface is not additionally drawn in the drawings.

Referring to fig. 3, fig. 4 and fig. 5, in some embodiments of the present invention, a detachable buckle is taken as an example for description, but not limited thereto. For example, the first locking device 192, the second locking device 193, the first card interface 191 and the second card interface are all plastic parts with certain elasticity. The first fastening device 192 and the second fastening device 193 are respectively a jaw structure having an insertion surface (not shown) and a reverse fastening surface (not shown), the insertion surface has an insertion angle with a certain angle relative to the ground, the reverse fastening surface has a reverse fastening angle with a certain angle relative to the ground, the insertion surface and the reverse fastening surface are located on two adjacent and oppositely-arranged surfaces of the jaw structure, it can be understood that the insertion surface, the reverse fastening surface and the ground can form a triangular relationship, the ground corresponds to the bottom side of the triangle, the insertion surface and the reverse fastening surface correspond to two waists of the triangle, so that the first fastening device 192 and the second fastening device 193 are inserted into the first fastening port 191 and the second fastening port. Preferably, the insertion angle and the reverse-buckling angle may be 45 ° or 60 °, so that the first and second catching

devices

192 and 193 are more easily inserted into the card interface. The clamping interface is provided with a groove for accommodating the claw structure and a buckling surface (not shown) for buckling the inserting surface and the reverse buckling surface, and the buckling surface has a buckling angle with a certain angle relative to the ground. Preferably, the engaging angle is smaller than the inserting angle and the reverse engaging angle, for example, the engaging angle may be 30 °, so that a deformation amount of the claw structure when engaging with the card interface is greater than or equal to an engaging amount required by the engaging surface, and after engaging, the claw structure is not easily taken out, and an external force is required to disengage the claw structure from the card interface.

Further, the upper lock plate 11 is provided with a second sliding slot 18 corresponding to the first sliding slot 17, the second sliding slot 18 penetrates through the upper lock plate 11, and the poke rod 161 penetrates through the first sliding slot 17 and the second sliding slot 18 respectively.

In some embodiments of the present invention, the upper lock plate 11 is provided with a second sliding slot 18 corresponding to the first sliding slot 17, the second sliding slot 18 penetrates through the upper lock plate 11, and the poke rod 161 penetrates through the first sliding slot 17 and the second sliding slot 18 respectively. Specifically, the shape and size of second sliding chute 18 correspond to the shape and size of first sliding chute 17, second sliding chute 18 is disposed opposite to first sliding chute 17, and first sliding chute 17 is located above second sliding chute 18. The poke rod 161 passes through the first sliding slot 17 and the second sliding slot 18, and when the poke rod 161 slides to one side of the first sliding slot 17, the poke rod 161 also slides to one side of the second sliding slot 18 corresponding to the first sliding slot 17.

Further, the toggle device 16 further includes a reset assembly 166 disposed in the second sliding slot 18, the reset assembly 166 includes a first elastic member 166a and a second elastic member 166b, one end of the first elastic member 166a is connected to the inner wall of the second sliding slot 18, the other end is connected to the sidewall of the toggle rod 161, one end of the second elastic member 166b is connected to the inner wall of the second sliding slot 18, and the other end is connected to the sidewall of the toggle rod 161.

In some embodiments of the present invention, the elastic member is made of an elastic material, specifically, the elastic member may be a spring, and may also be a spring plate, and the spring as the elastic member may be a compression spring, an extension spring, and a coil spring, and a person skilled in the art may select the kind of the elastic member according to actual situations. For convenience of description, in the following embodiments, the elastic member is taken as an example of a tension spring, but the invention is not limited thereto.

Further, the first elastic member 166a and the second elastic member 166b are respectively located at both ends of the tap lever 161. Preferably, one end of each of the extension springs is connected to an inner wall of the second sliding slot 18, and the other end of each of the extension springs is connected to a corresponding side wall of the tap lever 161, so that each of the extension springs is parallel to the ground, when the tap lever 161 slides in the second sliding slot 18, one end of the tap lever 161 sliding to the second sliding slot 18 exerts an elastic force on the first elastic member 166a or the second elastic member 166b, and at this time, the first elastic member 166a or the second elastic member 166b exerts an opposite elastic force on the tap lever 161, and during the interaction of the above forces, each of the extension springs is parallel to the long side of the second sliding slot 18, so that the interaction of the above forces is not converted into other forces, so that the external force for sliding the tap lever 161 is not too large. In some embodiments of the present invention, the first elastic member 166a and the second elastic member 166b are respectively located at two ends of the poke rod 161, and at this time, under the interaction of the first elastic member 166a and the second elastic member 166b, when the poke rod 161 is in a balanced state, the poke rod 161 is stable between the second sliding slots 18, wherein the poke rod 161 may be stable at any position other than two ends of the second sliding slots 18, for example, the poke rod 161 may be stable at one side of the second sliding slots 18, or may be stable at a central position of the second sliding slots 18.

Further, the first elastic member 166a and the second elastic member 166b are symmetrically disposed at two ends of the poke rod 161, and the poke rod 161 is stabilized at the center position of the second sliding slot 18 by the elastic action of the first elastic member 166a and the second elastic member 166 b. For convenience of description, in the following embodiments, the toggle lever 161 is stabilized at the central position of the second sliding slot 18 by the elastic action of the first elastic member 166a and the second elastic member 166b, but the invention is not limited thereto.

In some embodiments of the present invention, the at least two extension springs are symmetrically disposed in the second sliding chute 18, and the shifting rod 161 is located at the center of the at least two extension springs, it is understood that the shifting rod 161 is also located at the center of the second sliding chute 18. Since each of the at least two extension springs is the same, when the at least two extension springs are symmetrically disposed in the second sliding chute 18, the tap lever 161 is under the balanced elastic action of the at least two extension springs, so that when the tap lever 161 is not under the action of an external force, the free state of the tap lever 161 is stationary at the center position of the second sliding chute 18 relative to the second sliding chute 18. When the shifting rod 161 moves under the action of an external force and is located at a non-central position, for example, when the first engaging device 192 and the second engaging device 193 in the shifting rod 161 are respectively engaged with the first engaging interface 191 and the second engaging interface, the at least one extension spring generates a pulling force due to the pulling force, the at least one extension spring generates a pressure due to the compression, and when the first engaging device 192 and the second engaging device 193 in the second shifting rod 161 are respectively disengaged from the first engaging interface 191 and the second engaging interface, the shifting rod 161 returns to the central position of the second sliding groove 18 again due to the combined action of the pulling force and the pressure of the at least two extension springs.

Further, a cavity (not shown) is formed in the chain dividing block 14, the blade 162 is located in the cavity, a first engaging groove 141 corresponding to the blade 162 is formed in the inner side of the chain dividing block 14, and a cutting edge of the blade 162 faces the first engaging groove 141.

In some embodiments of the present invention, the shape of the first card slot 141 corresponds to the shape of the blade 162, and the size of the first card slot 141 is adapted to the size of the blade 162, so that the blade 162 is not clamped by the first card slot 141 being too tight, and is not swayed by the first card slot 141 being too loose, and therefore the size of the first card slot 141 is approximately equal to the size of the blade 162, and the size of the first card slot 141 is slightly larger than the size of the blade 162. Preferably, the cavity has a larger space, or the size of the blade 162 is small enough, so that the blade 162 has a certain space in the cavity for movement, which facilitates the entry and exit of the blade 162 in the first card slot 141, and the blade 162 is completely hidden in the cavity when not in use.

Further, a second engaging groove 142 is formed in the outer side of the chain dividing block 14, the first engaging groove 141 is opposite to the second engaging groove 142, the blade 162 is divided into a first blade 162a and a second blade 162b, a blade of the first blade 162a faces the first engaging groove 141, and a blade of the second blade 162b faces the second engaging groove 142.

In some embodiments of the present invention, one blade 162 may be disposed in the cavity, and two blades 162 may also be disposed in the cavity, and the number of blades 162 may be selected by those skilled in the art according to actual situations. For convenience of description, in the following embodiments, the two blades 162 are disposed in the cavity, but not limited thereto.

In some embodiments of the present invention, the two blades 162 may be divided into a first blade 162a and a second blade 162b, and the first blade 162a and the second blade 162b are embedded in the poke rod 161 at the lower end of the cavity. It should be noted that the blade backs of the first blade 162a and the second blade 162b are close to and opposite to each other, and the blade edge and the blade back of the first blade 162a and the blade edge and the blade back of the second blade 162b are located in a same plane, it can be understood that an angle between the blade edge of the first blade 162a and the blade edge of the second blade 162b is 180 °, so that the depths of the first blade 162a and the second blade 162b respectively extending out of the first engaging groove 141 and the second engaging groove 142 can reach the maximum degree, thereby quickly and accurately cutting off the slider clamped in the slider 100, and preventing the slider from jamming the slider 100.

Further, the distance from the end of the first blade 162a or the second blade 162b connected to the poke rod 161 to the blade edge is less than half of the width of the cavity.

In some embodiments of the present invention, the first blade 162a and the second blade 162b are embedded in the poke rod 161 at the lower end of the cavity, and specifically, the lower end of the poke rod 161 embedded with the first blade 162a and the second blade 162b may be used as the handle 167 of the first blade 162a and the handle 167 of the second blade 162b, respectively. It should be noted that the first blade 162a and the second blade 162b may be embedded in the side wall of the shifting rod 161 at the lower end of the cavity, and may also be fixedly connected to the side wall of the shifting rod 161 at the lower end of the cavity, and the connection manner is not limited thereto, and in some embodiments of the present invention, the connection manner is described as an embedded manner.

Preferably, when there is only one blade 162 in the cavity, the width of the blade 162 is less than the width of the cavity so that the cavity can fully accommodate the blade 162. When the first blade 162a and the second blade 162b are arranged in the cavity, the distance from the end, connected with the handle 167, of the first blade 162a to the blade edge is less than half of the width of the cavity, so that the cavity can completely accommodate the first blade 162a and the second blade 162 b.

Further, the distance from the end of the first blade 162a or the second blade 162b connected to the handle 167 to the blade edge is less than half of the length of the first runner 17 or the second runner 18. Preferably, when the shifting rod 161 slides to one end of the first sliding slot 17 or the second sliding slot 18, the first locking device 192 or the second locking device 193 disposed on the shifting rod 161 can be connected to the first locking interface 191 or the second locking interface in a locking manner, so as to fix the shifting rod 161 to one end of the first sliding slot 17 or the second sliding slot 18, and therefore, the first blade 162a or the second blade 162b at the lower end of the shifting rod 161 extends out of the first locking slot 141 or the second locking slot 142, so as to cut off the thread end wound around the sub-link block 14. It should be noted that, at this time, the width of the first blade 162a or the second blade 162b extending out of the first slot 141 or the second slot 142 is the largest, so that more stubs can be cut.

When the slider is snapped into the zipper, especially the zipper slider 100, is jammed, at this time, the top end of the poke rod 161 protruding out of the bow-shaped hook 12 can be poked, so that the top end of the poke rod 161 slides back and forth along the first sliding slot 17, or the top end of the poke rod 161 slides to one side of the long edge of the first sliding slot 17 along the first sliding slot 17, through the snapping connection among the first snapping device 192, the second snapping device 193, the first snapping interface 191 and the second snapping interface, the poke rod 161 is fixed to one side of the second sliding slot 18 relative to the zipper slider 100, so that the first blade 162a or the second blade 162b connected with the lower end of the cavity of the poke rod 161 extends out of the first snapping slot 141, and the zipper slider 100 or the slider jammed in the zipper block 14 is cut off, so that the zipper slider 100 can pull up or separate the zipper teeth again.

Although the present invention has been described with reference to particular embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A zipper comprises a cloth belt, zipper teeth and a zipper head, wherein the zipper teeth are positioned on one side of the cloth belt and used for drawing or separating the cloth belt, the zipper head comprises an upper lock plate, an arc-shaped hook, a pulling piece, a zipper dividing block and a lower lock plate, and is characterized in that the upper lock plate and the lower lock plate are oppositely arranged, the arc-shaped hook is fixed on a first surface of the upper lock plate far away from the lower lock plate, one end of the pulling piece is movably connected with the arc-shaped hook, two ends of the zipper dividing block are respectively fixedly connected with the upper lock plate and the lower lock plate, the zipper head further comprises a shifting device provided with a shifting rod, one end of the arc-shaped hook is arranged above the zipper dividing block, one end of the shifting rod penetrates through a first sliding chute arranged in the arc-shaped hook and extends into the zipper dividing block through the arc-shaped hook and the upper lock plate, and one end of the shifting rod extends to the bottom of the zipper dividing block, the other end of the poke rod extends out of the outer side of the first sliding groove, and a blade is arranged at one end, located at the bottom of the chain dividing block, of the poke rod;

the chain dividing block is internally provided with a cavity, the blade is positioned in the cavity, the inner side of the chain dividing block is provided with a first clamping groove corresponding to the blade, and the cutting edge of the blade is opposite to the first clamping groove.

2. The zipper of claim 1, wherein the first sliding groove extends through the arcuate hook, and a dimension of an end of the poke rod extending out of the first sliding groove is larger than a width of the first sliding groove.

3. A slide fastener according to claim 2, wherein said upper lock plate is provided with a second slide groove corresponding to said first slide groove, said second slide groove extending through said upper lock plate, said tap rod extending through said first slide groove and said second slide groove, respectively.

4. The zipper according to claim 3, wherein the toggle device further comprises a buckle assembly disposed in the first sliding groove, the buckle assembly comprises a first buckle interface and a second buckle interface, and a first buckle device and a second buckle device for being buckled with the first buckle interface and the second buckle interface are correspondingly disposed on the side wall of the toggle rod respectively.

5. The zipper according to claim 4, wherein the toggle device further comprises a reset assembly disposed in the second sliding groove, the reset assembly comprises a first elastic member and a second elastic member, one end of the first elastic member is connected to the inner wall of the second sliding groove, the other end of the first elastic member is connected to the sidewall of the toggle rod, one end of the second elastic member is connected to the inner wall of the second sliding groove, and the other end of the second elastic member is connected to the sidewall of the toggle rod.

6. A slide fastener according to claim 5, wherein said first and second resilient members are located at respective ends of said tap lever.

7. The slide fastener according to claim 6, wherein the first elastic member and the second elastic member are symmetrically disposed at both ends of the pulling rod, and the pulling rod is stabilized at a central position of the second sliding groove by an elastic action of the first elastic member and the second elastic member.

8. The zipper according to claim 1, wherein a second slot is formed on an outer side of the zipper dividing block, the first slot and the second slot are oppositely arranged, the blade is divided into a first blade and a second blade, a cutting edge of the first blade is opposite to the first slot, and a cutting edge of the second blade is opposite to the second slot.

9. A zipper according to claim 8, wherein the end of the first or second blade connected to the tap lever is less than half the width of the cavity from the cutting edge.