CN108968241B

CN108968241B - Zipper

Info

Publication number: CN108968241B
Application number: CN201810818055.1A
Authority: CN
Inventors: 吴良柳
Original assignee: Weihai Shuangyi Environmental Protection Technology Co ltd
Current assignee: Weihai Shuangyi Environmental Protection Technology Co.,Ltd.
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2021-02-05
Anticipated expiration: 2038-07-24
Also published as: CN108968241A

Abstract

The invention discloses a zipper, which comprises a zipper belt provided with zipper teeth and a zipper head, wherein the zipper head comprises an upper locking plate, a lower locking plate and a zipper dividing block, the chain dividing block is provided with a first end used for being contacted with the chain teeth and a second end opposite to the first end, the chain dividing block is provided with an accommodating groove with a first opening at the first end and a screw hole which is communicated with the bottom of the accommodating groove and is provided with a second opening at the second end, the blade is telescopically arranged in the accommodating groove, the front end of the blade with the cutting edge is positioned at the first end, the screw hole is screwed with a screw rod, the bottom end of the screw rod corresponds to the rear end of the blade opposite to the cutting edge, the top end of the screw rod, which is opposite to the bottom end, extends out of the second opening, and the screw rod is rotated to enable the bottom end of the screw rod to be abutted against the rear end of the blade and push the front end of the blade to extend out of the first opening. The zipper can cut the zipper head when the zipper head is clamped in the zipper head and/or the zipper teeth, so that the zipper is prevented from being clamped.

Description

Zipper

Technical Field

The invention relates to the technical field of zippers, in particular to an anti-blocking zipper.

Background

A zipper generally includes a slider and two fastener tapes, each fastener tape has a row of fastener elements, and the two rows of fastener elements on the two fastener tapes are arranged in a staggered manner. When people use the zipper, the thread end on the clothes is often carelessly clamped in the zipper head and/or the zipper teeth, so that the zipper is clamped. Because the zipper head body is usually integrally formed, the zipper is difficult to restore to normal by bare hands of people, and even the zipper is damaged by excessive force, so that inconvenience is brought to the life of people.

Disclosure of Invention

The invention aims to provide a zipper, which can cut a thread end when the thread end is clamped in a zipper head and/or a zipper tooth, so that the zipper is prevented from being clamped.

In order to solve the technical problems, the invention adopts the following technical scheme: this zip fastener is including being provided with the chain belt of chain tooth and drawing zipper head, draw zipper head including last jam plate, with go up jam plate relative lower jam plate and set up and be in go up the jam plate with branch chain piece between the jam plate down, divide the chain piece have be used for with the first end of chain tooth contact and with the second end that first end is relative, be provided with on dividing the chain piece first end have first open-ended storage tank and with the bottom intercommunication of storage tank just the second end has second open-ended screw, scalable being provided with the blade in the storage tank, the front end that the blade has the cutting edge is located first end, the screw spiro union has the screw rod, the bottom of screw rod corresponds on the blade with the rear end that the cutting edge is relative, on the screw rod with the top that the bottom is relative is followed the second opening stretches out, and it makes to rotate the screw rod the bottom of screw rod support to be held the rear end of blade and promote the front end of blade is followed the first opening stretches out.

Compared with the prior art, the invention has the following beneficial effects: according to the zipper, the accommodating groove is formed in the zipper dividing block of the zipper, the blade is arranged in the accommodating groove in a telescopic mode, the bottom of the accommodating groove is communicated with the screw hole, the screw hole is in threaded connection with the screw rod, when the zipper head is clamped in the zipper head and/or the zipper teeth, the bottom end of the screw rod is abutted against the rear end of the blade and pushes the blade by rotating the screw rod, the front end of the blade extends out of the first opening, the front end of the blade is provided with the cutting edge, the cutting edge can cut off the zipper head clamped in the zipper head and/or the zipper teeth, and the zipper dividing block in the zipper is prevented from being wound by the zipper head and clamped.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view showing the structure of a slide fastener of the present invention;

fig. 2 is a left side view of the fastener slider of embodiment 1 of the present invention;

fig. 3 is a plan view of a fastener slider according to embodiment 1 of the present invention;

FIG. 4 is a cross-sectional view of the slider of FIG. 2 taken along line A1-A1;

fig. 5 is a partially enlarged schematic view of a portion D1 in fig. 4;

FIG. 6 is a cross-sectional view of the slider of FIG. 3 taken along line B1-B1;

FIG. 7 is a cross-sectional view of the slider of FIG. 3 taken along line C1-C1;

fig. 8 is a partially enlarged schematic view of a portion E1 in fig. 7;

FIG. 9 is a top view of a branching block in embodiment 1 of the present invention;

FIG. 10 is a front view of the chaining block of FIG. 9;

FIG. 11 is a left side view of the chaining block of FIG. 9;

FIG. 12 is a right side view of the chaining block of FIG. 9;

FIG. 13 is a cross-sectional view of the chain segment of FIG. 9 taken along line F1-F1;

FIG. 14 is a cross-sectional view of the chain segment of FIG. 9 taken along line G1-G1;

FIG. 15 is a top view of a blade in example 1 of the present invention;

FIG. 16 is a front view of the blade of FIG. 15;

fig. 17 is a left side view of the fastener slider of embodiment 2 of the invention;

fig. 18 is a plan view of a fastener stringer according to embodiment 2 of the present invention;

FIG. 19 is a cross-sectional view of the slider of FIG. 17 taken along line A2-A2;

FIG. 20 is a cross-sectional view of the slider of FIG. 18 taken along line B2-B2;

FIG. 21 is a top view of a blade in example 2 of the present invention;

fig. 22 is a front view of a blade in embodiment 2 of the present invention;

FIG. 23 is a right side view of a blade in embodiment 2 of the present invention;

fig. 24 is a left side view of the fastener slider of embodiment 3 of the invention;

fig. 25 is a plan view of a fastener stringer according to embodiment 3 of the present invention;

FIG. 26 is a cross-sectional view of the slider of FIG. 24 taken along line A3-A3;

FIG. 27 is a cross-sectional view of the slider of FIG. 25 taken along line B3-B3;

fig. 28 is a front view of a blade in embodiment 3 of the present invention;

fig. 29 is a left side view of the fastener stringer of embodiment 4 of the present invention;

fig. 30 is a plan view of a fastener stringer according to embodiment 4 of the present invention;

FIG. 31 is a cross-sectional view of the slider of FIG. 29 taken along line A4-A4;

FIG. 32 is a cross-sectional view of the slider of FIG. 30 taken along line B4-B4;

fig. 33 is a left side view of the fastener stringer of embodiment 5 of the present invention;

fig. 34 is a plan view of a fastener stringer according to embodiment 5 of the present invention;

FIG. 35 is a cross-sectional view of the slider of FIG. 33 taken along line A5-A5;

fig. 36 is a partially enlarged schematic view of a portion D5 in fig. 35;

FIG. 37 is a cross-sectional view of the slider of FIG. 34 taken along line B5-B5;

FIG. 38 is a front view of a blade in example 5 of the present invention;

FIG. 39 is a right side view of a blade in example 5 of the present invention;

FIG. 40 is a cross-sectional view of the blade of FIG. 38 taken along line H5-H5.

Description of reference numerals:

100: a chain belt;

110: a zipper tooth;

200. 300, 400, 500, 600: a slider of a zipper fastener;

210: an upper lock plate;

211: an upper lock plate side plate;

220: a lower lock plate;

221: a lower lock plate side plate;

230. 330, 430, 530, 630: dividing the chain block;

230a, 330a, 430a, 530a, 630 a: a first end;

230b, 330b, 430b, 530b, 630 b: a second end;

230 c: a first side surface;

230 d: a second side surface;

230 e: a third side;

231. 331, 431, 531, 631: a containing groove;

231a, 331a, 431a, 531a, 631 a: a first opening;

232. 332, 432, 532, 632: a screw hole;

232 b: a second opening;

232 c: a third opening;

233. 333: a card slot;

240. 340, 440, 540, 640: a blade;

240a, 340a, 440a, 540a, 640 a: a front end;

240b, 340b, 440b, 540b, 640 b: a back end;

240c, 440c, 640 c: a via hole;

340 c: a clamping block;

640 d: a through hole;

241: a push rod;

242. 342, 442, 542: an elastic member;

250. 350, 450, 550, 650: a screw;

250a, 350a, 450a, 550a, 650 a: a bottom end;

250b, 650 b: a top end;

650 c: a top block;

260: an arched hook;

270: a pull tab.

Detailed Description

The invention mainly provides a solution for the problem that the traditional zipper cannot be normally used when the zipper head is clamped in the zipper head and/or the zipper teeth in use.

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly and completely apparent, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Example 1

Referring to fig. 1, the slide fastener of the present invention includes a fastener stringer 100 and a slider 200. The number of the chain belts 100 is two, each chain belt 100 is provided with a row of chain teeth 110, and the two rows of chain teeth 110 on the two chain belts 100 are staggered. Referring to fig. 2 and 3, the zipper slider 200 at least includes an upper lock plate 210, a lower lock plate 220 and a zipper dividing block 230. The upper lock plate 210 is disposed opposite to the lower lock plate 220, and the zipper dividing block 230 is disposed between the upper lock plate 210 and the lower lock plate 220. Referring to fig. 4 to 8, the zipper block 230 has a first end 230a and a second end 230b, the first end 230a is used for contacting the zipper element 110, and the second end 230b is opposite to the first end 230 a. An accommodating groove 231 is formed in the chain dividing block 230, the accommodating groove 231 has a first opening 231a, and the first opening 231a is formed at the first end 230 a. A screw hole 232 is further formed in the chain dividing block 230, the screw hole 232 is communicated with the bottom surface of the accommodating groove 231, and the screw hole 232 has a second opening 232b at the second end 230 b. The zipper slider 200 further includes a blade 240 and a screw 250. The blade 240 has a front end 240a and a rear end 240b, the front end 240a being the end of the blade 240 having the cutting edge, and the rear end 240b being the end of the blade 240 opposite the cutting edge. The blade 240 is telescopically disposed in the accommodating groove 231, a front end 240a of the blade 240 is located at the first end 230a, and a rear end 240b of the blade 240 is located at the bottom of the accommodating groove 231. In other embodiments, the rear end 240b of the blade 240 may be disposed near the bottom of the accommodating groove 231. The screw 250 has a bottom end 250a and a top end 250b, the bottom end 250a is opposite to the top end 250b, the screw 250 is in threaded connection with the screw hole 232, the bottom end 250a is located in the chaining block 230, the bottom end 250a corresponds to the rear end 240b of the blade 240, and the top end 250b extends out of the second opening 232 b. After the screw 250 is rotated, the bottom end 250a abuts against the rear end 240b of the blade 240 and pushes the blade 240 so that the front end 240a of the blade 240 protrudes from the first opening 231 a.

According to the invention, the chain dividing block 230 of the zipper head 200 is provided with the accommodating groove 231 and the screw hole 232, meanwhile, the blade 240 is telescopically arranged in the accommodating groove 231, the screw hole 232 is in threaded connection with the screw rod 250, when the zipper head is clamped in the zipper head 200 and/or the zipper teeth 110, the top end 250b of the screw rod 250 extending out of the second opening 232b is rotated to push the bottom end 250a of the screw rod 250, and then the rear end 240b of the blade 240 is pushed, so that the front end 240a of the blade 240 extends out of the first opening 231a, the front end 240a of the blade 240 is provided with the blade edge, and the blade edge can cut off the zipper head clamped in the zipper head 200 and/or the zipper teeth 110, and the chain dividing block 230 in the zipper head 200 is prevented from being wound by the zipper head and clamped; meanwhile, after the thread end is cut, the pressing of the bottom end 250a to the rear end 240b of the blade 240 is removed by reversely rotating the top end 250b of the screw 250, and the blade 240 retracts into the accommodating groove 231, thereby preventing the blade edge of the blade 240 from contacting the element 110 to cut the element 110 and from being blunt by scraping the blade edge when the slider 200 is pulled; in addition, the blade 240 is disposed in the receiving groove 231 and the front end 240a of the blade is located at the first end 230a of the zipper dividing block 230, and the first end 230a of the zipper dividing block 230 is located inside the zipper, so that the blade of the blade 240 can be prevented from being cut when the user uses the zipper; further, the blade 240 may be held at a fixed position by abutting the rear end 240b of the blade 240 with the bottom end 250a of the screw 250, and the cutting speed of the blade 240 may be increased by pushing the slider 200 in a state where the front end 240a of the blade 240 protrudes from the first opening 231 a.

Referring to fig. 4 and 9, the zipper block 230 is substantially in the shape of a triangular prism, and the zipper block 230 has three side surfaces: a first side surface 230c, a second side surface 230d, and a third side surface 230e, where a junction between the first side surface 230c and the second side surface 230d is located at the first end 230a, and the first end 230a is located inside the zipper, in this embodiment, the junction between the first side surface 230c and the second side surface 230d is in smooth transition and forms an end surface of the first end 230a, the third side surface 230e is located at the second end 230b, the second end 230b is disposed at the outer side of the zipper, and the third side surface 230e forms an end surface of the second end 230 b. The advantage of this arrangement is that the zipper block 230 has a larger volume while the width of the first end 230a is smaller, the larger volume of the zipper block 230 facilitates reducing the difficulty of arranging the blade 240 in the zipper block 230 during the production process, and the smaller width of the first end 230a facilitates the direct contact between the first end 230a and the zipper teeth 110, so that the blade 240 arranged in the zipper block 230 can cut the thread end jammed in the zipper head 200 and/or the zipper teeth even if the length of the blade extending from the first opening 231a is shorter. However, the shape of the zipper block 230 is not limited, and in other embodiments, the zipper block 230 may be a semi-cylindrical shape, a quadrangular prism shape, or the like.

Referring to fig. 9 to 14, the chain dividing block 230 is provided with the receiving groove 231, the receiving groove 231 is a groove formed by partially recessing the first end of the chain dividing block 230, the groove has an opening, the opening is the first opening 231a, the bottom of the groove is located inside the chain dividing block 230, and the bottom of the groove is opposite to the first opening 231 a. In this embodiment, the cross section of the groove is preferably rectangular, and the cross section is a plane parallel to the third side 230 e. By setting the cross section of the receiving groove 231 to be rectangular, the receiving groove 231 has a larger height, so that a wider blade 240 is disposed therein, and when the width of the blade 240 is larger, the blade 240 is more beneficial to align with the thread end and perform cutting.

The blade 240 is disposed in the accommodating groove 231 in a retractable manner.

Referring to fig. 15 and 16, the blade 240 includes a body, the body has the front end 240a and the rear end 240b, and the body is further provided with a through hole 240 c. In this embodiment, the number of the via holes 240c is one, but in other specific embodiments, the number of the via holes 240c may be multiple. The via 240c has a square shape, and in other embodiments, the via 240c may also have a circular shape, which is not limited herein.

Referring to fig. 4 and 14, two slots 233 are formed on the inner side wall of the accommodating groove 231. In other embodiments, the number of the card slots 233 may be one or more than two. The engaging groove 233 is a recess formed by inward recessing of the inner sidewall of the receiving groove 231. In detail, the two slots 233 are respectively disposed on the inner sidewalls of the two sides of the accommodating groove 231, and the two slots 233 are parallel to each other.

Referring to fig. 4 to 8, the zipper slider 200 further includes a push rod 241 and an elastic member 242. The push rod 241 penetrates through the through hole 240c, and the end of the push rod 241 is clamped in the clamping groove 233. In detail, the push rod 241 is configured to be matched with the through hole 240c, so as to enhance the stability between the push rod 241 and the blade 240 and prevent the blade 240 from swinging. In this embodiment, the through hole 240c has a square shape, and therefore, the cross section of the push rod 241 has a square shape; in other embodiments, when the through hole 240c is circular, the cross section of the push rod 241 is preferably circular. It should not be understood that the shape of the through hole 240c must be consistent with the cross-sectional shape of the push rod 241, and in other embodiments, the push rod 241 can pass through the through hole 240 c. In addition, in this embodiment, the number of the card slots 233 is two, and two ends of the push rod 241 are respectively clamped in the two card slots 233. In other embodiments, when the number of the slots 233 is singular, the push rod 241 may be disposed such that one end is clamped in the slot 233 and the other end is close to the inner sidewall of the receiving slot 231. The elastic member 242 is disposed in the latch groove 233. In this embodiment, the elastic member 242 is a spring. In other embodiments, the elastic member 242 may be a rubber strip having elasticity, or the like. It is understood that in the present embodiment, the number of the slots 233 is two, and the number of the elastic members 242 is also preferably two. In other embodiments, the number of the elastic members 242 may be one or more than two. In more detail, the elastic member 242 is located between an end of the push rod 241 and an end surface of the latch 233. In this embodiment, the elastic member 242 is located between the first end 230a and the push rod 241, and two ends of the elastic member 242 are respectively connected to an end of the push rod 241 and an end surface of the engaging groove 233. In other embodiments, the elastic element 242 may be located between the first end 230a and the push rod 241, and both ends of the elastic element 242 are not connected to the end of the push rod 241 and the end surface of the slot 233. In other embodiments, the elastic element 242 may be further located between the second end 230b of the chaining-dividing block 230 and the push rod 241, and both ends of the elastic element 242 are respectively connected with the end of the push rod 241 and the end surface of the slot 233.

Referring to fig. 4, 5, 6 and 14, the chain dividing block 230 is further provided with the screw hole 232, the screw hole 232 is a straight channel, the screw hole 232 is communicated with the accommodating groove 231, the screw hole 232 has two openings, namely a second opening 232b and a third opening 232c, the second opening 232b is located at the second end 230b, and the third opening 232c is located at the bottom surface of the accommodating groove 231. Meanwhile, the screw hole 232 is also provided with an internal thread. An external thread matched with the internal thread is arranged on the outer surface of the screw rod 250, and the screw hole 232 is in threaded connection with the screw rod 250 through the mutual matching action of the internal thread and the external thread. For ease of rotation, the top end 250b of the screw 250 is sized larger than the bottom end 250 a. In the present embodiment, the bottom end 250a of the screw 250 corresponds to the rear end 240b of the blade 240, but the screw 250 and the blade 240 are independent from each other. In other embodiments, the screw 250 may be connected to the blade 240.

In this embodiment, a clamping groove 233 is formed in the inner side wall of the accommodating groove 231, a through hole 240c is formed in the blade 240, a push rod 241 and an elastic member 242 are further arranged in the zipper puller 200, the push rod 241 penetrates through the through hole 240c, the end portion of the push rod is clamped in the clamping groove 230, and the elastic member 240 is arranged in the clamping groove 233, so that the blade 240 is telescopically arranged in the accommodating groove 231. When the zipper is used, the screw rod 250 is rotated, the screw rod 250 moves towards the first end 230a of the zipper dividing block 230 along the screw hole 232, so that the bottom end 250a of the screw rod 250 is abutted against the rear end 240b of the blade 240 and presses the rear end 240b, thereby pushing the blade 240, and the blade 240 moves towards the first end 230a of the zipper dividing block 230 along the accommodating groove 231 and the front end 240a of the blade 240 extends out of the first opening 231 a. In the process that the blade 240 moves towards the first end 230a of the chaining block 230, the blade 240 drives the push rod 241 passing through the through hole 240c to move towards the first end 230a along the slot 233. The push rod 241 presses the elastic member 242 disposed in the engaging groove 233 and located between the first end 230a and the push rod 241 in the process of moving toward the first end 230 a. The front end 240a of the blade 240 protrudes from the first opening 231a to cut the slider caught in the slider 200 and/or the element 110. After cutting off the thread end, the screw 250 is rotated in a reverse direction, the screw 250 moves along the screw hole 232 to the second end 230b of the zipper dividing block 230, the pressing of the bottom end 250a to the rear end 240b of the blade 240 is removed, the extruded elastic member 242 extends, in the process of extending, the elastic member 242 pushes the push rod 241 to move along the slot 233 to the second end 230b of the zipper dividing block 230, the push rod 241 further drives the blade 240 to move along the receiving slot 231 to the bottom of the receiving slot 231 when moving to the second end 230b of the zipper dividing block 230, so that the blade 240 retracts into the receiving slot 231, and the blade 240 resets. In other embodiments, if the elastic member 242 is disposed in the slot 233 and located between the second end 230b of the zipper dividing block 230 and the push rod 241, and both ends of the elastic member 242 are connected to the end of the push rod 241 and the end of the slot 233, respectively, the push rod 241 may elongate the elastic member 242 during the movement toward the first end 230 a. After the rear end 240b of the blade 240 stops being pressed, the elongated elastic member 242 contracts, in the contracting process, the elastic member 242 pulls the push rod 241 to move along the engaging groove 233 toward the second end 230b of the zipper dividing block 230, when the push rod 241 moves toward the second end 230b of the zipper dividing block 230, the push rod 241 further drives the blade 240 to move along the accommodating groove 231 toward the bottom of the accommodating groove 231 and retracts the blade 240 into the accommodating groove 231, and the blade 240 resets.

Also, the blade 240 disposed in the receiving groove 231 is preferably configured to fit into the receiving groove 231. Therefore, when the blade 240 is disposed in the accommodating groove 231, the inner side wall of the accommodating groove 231 can limit the blade 240, so as to prevent the blade 240 from swinging; meanwhile, the blade 240 also limits the elastic member 242 disposed in the slot 233, and prevents the elastic member 242 from sliding out of or protruding from the slot 233.

In addition, referring to fig. 2 to 7, two sides of the upper lock plate 210 are respectively provided with an upper lock plate side plate 211, two sides of the lower lock plate 220 are respectively provided with a lower lock plate side plate 221, the upper lock plate side plate 211 corresponds to the lower lock plate side plate 221, a space is formed between the upper lock plate side plate 211 and the lower lock plate side plate 221, the space is used for penetrating through the fastener chain 100, and meanwhile, the upper lock plate side plate 211 and the lower lock plate side plate 221 can also limit the fastener elements 110 in the fastener head 200 and extrude the fastener elements 110 when the fastener chain 100 enters the fastener head 200, so that two rows of staggered fastener elements 110 on two fastener chains 100 are mutually matched.

Referring to fig. 2 and 3, in order to facilitate pulling the zipper slider 200, the zipper slider 200 further includes an arcuate hook 260 and a pull tab 270. The arc-shaped hook 260 is fixedly arranged on one side surface of the upper locking plate 210 opposite to the zipper dividing block 230, and the arc-shaped hook 260 is connected with the pull tab 270. When the zipper is used, the zipper puller 200 can be driven to move back and forth by pulling the zipper pull 270, so that the zipper is convenient and labor-saving.

Example 2

In this embodiment, the specific manner of the retractable blade is changed from that of embodiment 1.

Specifically, referring to fig. 17 to 20, the zipper includes a zipper slider 300, the zipper slider 300 includes a zipper dividing block 330, an accommodating groove 331 and a screw hole 332 are disposed on the zipper dividing block 330, a blade 340 is telescopically disposed in the accommodating groove 331, and the screw hole 332 is in threaded connection with a screw 350. Please refer to the arrangement of the screw hole 232 and the screw rod 250 in embodiment 1, which is not described herein.

Referring to fig. 21 to 23, the blade 340 includes a body, the body has a front end 340a and a rear end 340b opposite to the front end 340a, and a latch 340c is disposed on the body, and the latch 340 is disposed on a side surface of the body. In this embodiment, the number of the latch 340c is two, and the two latch 340c are respectively disposed on two side surfaces of the body and are corresponding to each other. However, in other specific embodiments, the number of the latch 340c may be 1 or two or more, and when the number of the latch 340c is two or more, the two or more latches 340c may be respectively disposed on two side surfaces of the body, or may be disposed on the same side surface of the body. Also, the latch 340c is integrally formed with the body. In other embodiments, the latching block 340c and the body may be separately molded, and then the latching block 340c is fixedly disposed on the side surface of the body by bonding or welding.

Referring to fig. 19, two slots 333 are disposed on the inner side wall of the accommodating groove 331. In other embodiments, the number of the locking grooves 333 may be one or more than two, and preferably, the number of the locking grooves 333 is equal to the number of the locking blocks 340 c. The locking groove 333 is a groove formed by inward depression of the inner side wall of the accommodating groove 331. In detail, the two slots 333 are respectively formed on the inner sidewalls of the two sides of the accommodating groove 331, and the two slots 333 are parallel to each other.

The zipper slider 300 further includes an elastic member 342. The elastic member 342 is disposed in the latch groove 333. In this embodiment, the elastic member 342 is a spring. In other embodiments, the elastic member 342 may be a rubber strip having elasticity, or the like. It can be understood that, in the present embodiment, the number of the locking slots 333 is two, and the number of the elastic members 342 is also two. In other embodiments, the number of the elastic members 342 may be one or more than two. In more detail, the elastic member 342 is located between an end of the latch 340c and an end surface of the latch groove 333. In this embodiment, the elastic member 342 is located between the first end 330a of the zipper dividing block 330 and the latch 340c, and two ends of the elastic member 342 are respectively connected to an end of the latch 340c and an end surface of the slot 333. In other embodiments, the elastic element 342 may be located between the first end 330a of the chaining unit 330 and the latch 340c, and both ends of the elastic element 342 are not connected to the end of the latch 340c and the end surface of the slot 333. In other embodiments, the elastic element 342 may be located between the second end 330b of the chaining unit 330 and the latch 340c, and both ends of the elastic element 342 are connected to the end of the latch 340c and the end surface of the slot 333, respectively.

In this embodiment, a clamping groove 333 is formed in the inner side wall of the accommodating groove 331, a clamping block 340c is fixedly arranged on the blade 340, the clamping block 340c is clamped in the clamping groove 333, an elastic member 342 is further arranged on the zipper head 300, and the elastic member 340 is arranged in the clamping groove 333, so that the blade 340 is telescopically arranged in the accommodating groove 331. When the zipper is used, the screw 350 is rotated, the screw 350 moves towards the first end 330a of the zipper dividing block 330 along the screw hole 332, so that the bottom end 350a of the screw 350 abuts against the rear end 340b of the blade 340 and presses the rear end 340b, the blade 340 is pushed, the blade 340 moves towards the first end 330a of the zipper dividing block 330 along the containing groove 331, and the front end 340a of the blade 340 extends out of the first opening 331a of the containing groove 331. In the process that the blade 340 moves towards the first end 330a of the zipper dividing block 330, the blade 340 will drive the latch 340c to move towards the first end 330a along with the latch slot 333. The latch 340c may press the elastic member 342 disposed in the latch slot 333 and located between the first end 330a and the latch 340c during the process of moving toward the first end 330 a. The front end 340a of the blade 340 protrudes from the first opening 331a to cut the slider caught in the slider 300 and/or the element 110. After the thread end is cut off, the screw 350 is rotated reversely, the screw 350 moves along the screw hole 332 towards the second end 330b of the zipper dividing block 330, the pressing of the bottom end 350a on the rear end 340b of the blade 340 is removed, the extruded elastic member 342 extends, in the process of extending, the elastic member 342 pushes the fixture block 340c to move along the fixture groove 333 towards the second end 330b of the zipper dividing block 330, the fixture block 340c further drives the blade 340 to move along the containing groove 331 towards the bottom of the containing groove 331 when moving towards the second end 330b of the zipper dividing block 330, so that the blade 340 retracts into the containing groove 331, and the blade 340 resets. In other embodiments, if the elastic member 342 is disposed in the latch slot 333 and between the second end 330b and the latch 340c, and both ends of the elastic member 342 are respectively connected to the end of the latch 340c and the end surface of the latch slot 333, the elastic member 342 may be elongated when the latch 340c moves toward the first end 330 a. After the rear end 340b of the blade 340 stops being pressed, the elongated elastic member 342 contracts, and in the contracting process, the elastic member 342 pulls the fixture block 340c to move along the fixture groove 333 toward the second end 330b of the chaining block 330, and when the fixture block 340c moves toward the second end 330b, the fixture block 340c further drives the blade 340 to move along the containing groove 331 toward the bottom of the containing groove 331 and retracts the blade 340 into the containing groove 331, so that the blade 340 is reset.

Example 3

Specifically, referring to fig. 24 to 27, the zipper includes a zipper slider 400, the zipper slider 400 includes a zipper dividing block 430, an accommodating groove 431 and a screw hole 432 are disposed on the zipper dividing block 430, a blade 440 is telescopically disposed in the accommodating groove 431, and the screw hole 432 is in threaded connection with a screw 450. Please refer to the arrangement of the screw hole 232 and the screw 250 in embodiment 1, which is not described herein.

Referring to fig. 28, the blade 440 includes a body, and the body has a front end 440a and a rear end 440b opposite to the front end 440a, and the body is further provided with a through hole 440 c. In this embodiment, the number of the vias 440c is one, but in other specific embodiments, the number of the vias 440c may be multiple. The via 240c has a circular shape, and in other embodiments, the via 440c may have a square shape, a rectangular shape, or the like, which is not limited herein.

Referring to fig. 26, the zipper puller 400 further includes an elastic member 442. The elastic member 442 passes through the through hole 440c, and two ends of the elastic member 442 are respectively and fixedly connected to the inner sidewalls of the two sides of the accommodating groove 431. In detail, an end of the elastic member 442 is fixedly connected to an inner sidewall of the receiving groove 431 by welding or bonding. In order to more stably connect the elastic member 442 with the inner sidewall of the receiving groove 431, an end portion of the elastic member 442 is embedded in the chaining block 430. In this embodiment, the elastic member 442 is a rubber strip having elasticity. In this embodiment, the number of the through holes 440c is one, and the number of the elastic members 442 is also 1. In other embodiments, the number of the elastic members 442 may be multiple.

In this embodiment, the blade 440 is provided with a through hole 440c, an elastic member 442 is further disposed in the zipper puller 400, the elastic member 442 passes through the through hole 440c, and end portions of two ends of the elastic member 442 are respectively fixedly connected to inner sidewalls of two sides of the accommodating groove 431, so that the blade 440 is telescopically disposed in the accommodating groove 431. When the zipper is used, the screw rod 450 is rotated, the screw rod 450 moves towards the first end 430a of the zipper dividing block 430 along the screw hole 432, so that the bottom end 450a of the screw rod 450 abuts against the rear end 440b of the blade 440 and presses the rear end 440b, the blade 440 is pushed, the blade 440 moves towards the first end 430a of the zipper dividing block 430 along the accommodating groove 431, and the front end 440a of the blade 440 extends out of the first opening 431a of the accommodating groove 431. During the movement of the blade 440 toward the first end 430a of the chaining block 430, the blade 440 elongates the elastic member 442 passing through the through hole 440 c. The front end 440a of the blade 440 protrudes from the first opening 431a to cut the end of the thread caught in the slider and/or the coupling element. After the thread ends are cut off, the screw rod 450 is rotated reversely, the screw rod 450 moves towards the second end 430b of the chaining block 430 along the screw hole 432, the pressing of the bottom end 450a to the rear end 440b of the blade 440 is removed, the elongated elastic member 442 contracts, in the contraction process, the elastic member 442 drives the blade 440 to move towards the bottom of the accommodating groove 431 along the accommodating groove 431 and enables the blade 440 to retract into the accommodating groove 431, and the blade 440 resets.

Example 4

Specifically, referring to fig. 29 to 32, the zipper includes a zipper slider 500, the zipper slider 500 includes a zipper dividing block 530, an accommodating groove 531 and a screw hole 532 are disposed on the zipper dividing block 530, a blade 540 is telescopically disposed in the accommodating groove 531, and the screw hole 532 is in threaded connection with a screw 550. Please refer to the arrangement of the screw hole 232 and the screw 250 in embodiment 1, which is not described herein.

More specifically, the blade 540 includes a body having a front end 540a and a rear end 540b opposite the front end 540 a.

Referring to fig. 31 and 32, the zipper slider 500 further includes an elastic member 542. The elastic member 542 is disposed in the accommodating groove 531. One end of the elastic member 542 is connected to the rear end 540b of the blade 540, and the other end of the elastic member 542 is connected to the bottom of the accommodating groove 531. In detail, both end portions of the elastic member 542 are connected to the rear end 540b of the blade 540 and the bottom of the accommodating groove 531, respectively, by welding or bonding. In this embodiment, the elastic member 542 is a spring. In other embodiments, the elastic member 542 may be a rubber strip having elasticity. In this embodiment, the number of the elastic members 542 is also two, the two elastic members 542 are spaced apart from each other, and the screw 550 is located between the two elastic members 542. In other embodiments, the number of the elastic members 542 may be 1 or more.

In this embodiment, an elastic member 542 is further disposed in the zipper slider 500, and two end portions of the elastic member 542 are respectively connected to the rear end 540b of the blade 540 and the bottom of the accommodating groove 531, so that the blade 540 is telescopically disposed in the accommodating groove 531. When the zipper is used, the screw rod 550 is rotated, the screw rod 550 moves towards the first end 530a of the zipper dividing block 530 along the screw hole 532, so that the bottom end 550a of the screw rod 550 is abutted against the rear end 540b of the blade 540 and presses the rear end 540b, the blade 540 is pushed, the blade 540 moves towards the first end 530a of the zipper dividing block 530 along the accommodating groove 531, and the front end 540a of the blade 540 extends out of the first opening 531a of the accommodating groove 531. During the movement of the blade 540 toward the first end 530a of the zipper dividing block 530, the blade 540 elongates the elastic member 542. The front end 540a of the blade 540 protrudes from the first opening 531a to cut the slider caught in the slider 500 and/or the element 110. After the thread ends are cut off, the screw rod 550 is rotated reversely, the screw rod 550 moves towards the second end 530b of the chaining-dividing block 530 along the screw hole 532, the pressing of the bottom end 550a to the rear end 540b of the blade 540 is removed, the elongated elastic member 542 contracts, in the process of contracting, the elastic member 542 drives the blade 540 to move towards the bottom of the accommodating groove 531 along the accommodating groove 531, the blade 540 retracts into the accommodating groove 531, and the blade 540 resets.

Example 5

Specifically, referring to fig. 33 to 37, the zipper includes a zipper slider 600, the zipper slider 600 includes a zipper dividing block 630, an accommodating groove 631 and a screw hole 632 are disposed on the zipper dividing block 630, a blade 640 is telescopically disposed in the accommodating groove 631, the screw hole 532 is in threaded connection with a screw 550, the blade 640 is movably connected with the screw 650, and the screw 650 can rotate around the axis of the screw 650.

Referring to fig. 38 to 40, the blade 640 includes a body, the body has a front end 640a and a rear end 640b opposite to the front end 640a, the body is further provided with a through hole 640c, and the through hole 640c is disposed near the rear end 640 b. In this embodiment, the cross section of the via hole 640c is preferably rectangular, and in other embodiments, the cross section of the via hole 640c may also be square or circular. Further, a through hole 640d is further formed in the blade 640, and the through hole 640d is communicated with the through hole 640c and the rear end 640 b. In this embodiment, the cross section of the through hole 640d is circular, and in other embodiments, the cross section of the through hole 640d may also be rectangular or square, which is not limited herein.

Referring to fig. 35 to 37, the screw 650 includes a body having a bottom end 650a and a top end 650b, and a top block 650c is further fixed to the bottom end 650 a. In this embodiment, the top block 650c is preferably provided in a spherical shape, and in other embodiments, the top block 650c may also be provided in a square shape. The top block 650c is disposed within the via hole 640c and the top block 650c is movable within the via hole 640 c. In detail, the bottom end 650a of the screw 650 passes through the through hole 640d and is fixedly connected with the top block 650c disposed in the through hole 640 c. In more detail, the bottom end 650a of the screw 650 has a diameter smaller than that of the through hole 640d, and the top block 650c has a diameter larger than that of the through hole 640 d.

In this embodiment, the blade 640 is provided with a through hole 640c, and the screw 650 is fixedly provided with a top block 650c which is defined in the through hole 640c and movable in the through hole 640c, so as to realize the movable connection between the blade 640 and the screw 650, and the screw 650 can rotate around the axis of the screw 650, thereby realizing the telescopic arrangement of the blade 640 in the accommodating groove 631. Specifically, when the slide fastener is used, the screw 650 is rotated, the screw 650 moves along the screw hole 632 to the first end 630a of the zipper dividing block 630, and the top block 650c on the screw 650 rotates around the axis of the screw 650 and presses the rear end 540b, so as to push the blade 640, so that the blade 640 moves along the receiving groove 631 to the first end 630a of the zipper dividing block 630, and the front end 640a of the blade 640 protrudes from the first opening 631a of the receiving groove 631. The front end 640a of the blade 640 protrudes from the first opening 631a to cut the end of the thread caught in the slider 600 and/or the coupling element 110. After cutting off the thread ends, the screw 650 is rotated in a reverse direction, the screw 650 moves along the screw hole 632 to the second end 630b of the chaining block 630, the top block 650c defined in the via hole 640c pulls the blade 640 to move along the containing groove 631 to the bottom of the containing groove 631, the blade 640 retracts into the containing groove 631, and the blade 640 resets.

The above description is only an example of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a zipper, its is including the chain belt that is provided with the chain tooth and draw zipper head, draw zipper head including last locking plate, with lower locking plate relative with the setting of last locking plate is in go up the locking plate with branch chain piece between the locking plate down, its characterized in that: the chain dividing block is provided with a first end used for being in contact with the chain teeth and a second end opposite to the first end, a containing groove with a first opening at the first end and a screw hole communicated with the bottom of the containing groove and with a second opening at the second end are formed in the chain dividing block, a blade is arranged in the containing groove in a telescopic mode, the front end, provided with a cutting edge, of the blade is located at the first end, a screw is screwed in the screw hole, the bottom end of the screw corresponds to the rear end, opposite to the cutting edge, of the blade, the top end, opposite to the bottom end, of the screw extends out of the second opening, and the screw is rotated to enable the bottom end of the screw to abut against the rear end of the blade and push the front end of the blade to extend out of the first opening.

2. The zipper of claim 1, wherein the blade has a through hole, the inner side wall of the accommodating groove has a slot, the zipper head further comprises a push rod and an elastic member, the push rod passes through the through hole and the end portion of the push rod is clamped in the slot, and the elastic member is disposed in the slot.

3. The zipper of claim 2, wherein the resilient member is located between the first end and the push rod.

4. The slide fastener according to claim 2, wherein said elastic member is located between said second end and said push rod, and both ends of said elastic member are connected to an end portion of said push rod and an end surface of said engaging groove, respectively.

5. The zipper according to claim 1, wherein the blade comprises a body and a clamping block fixedly arranged on at least one side surface of the body, a clamping groove is formed on an inner side wall of the accommodating groove, the clamping block is clamped in the clamping groove, and the zipper puller further comprises an elastic member arranged in the clamping groove.

6. The zipper of claim 5, wherein the resilient member is located between the first end and the latch.

7. The zipper according to claim 5, wherein the elastic member is located between the second end and the latch, and both ends of the elastic member are respectively connected with the end of the latch and the end surface of the latch.

8. The zipper according to claim 1, wherein the blade is provided with a through hole, the zipper puller further comprises an elastic member, the elastic member penetrates through the through hole, and two ends of the elastic member are respectively and fixedly connected with the inner side wall of the accommodating groove.

9. The zipper according to claim 1, wherein the slider further comprises an elastic member, a rear end of the blade is connected to one end of the elastic member, and the other end of the elastic member is connected to the bottom of the receiving groove.

10. The zipper of claim 1, wherein the rear end of the blade is movably connected to the bottom end of the threaded rod, and the threaded rod rotates about the axis.