CN102210502A

CN102210502A - Slipping-preventing zipper head

Info

Publication number: CN102210502A
Application number: CN2010101424120A
Authority: CN
Inventors: 高秀忠
Original assignee: Fujian SBS Zipper Science and Technology Co Ltd
Current assignee: Fujian Xunxing Zipper Polytron Technologies Inc
Priority date: 2010-04-01
Filing date: 2010-04-01
Publication date: 2011-10-12
Anticipated expiration: 2030-04-01
Also published as: CN102210502B

Abstract

The invention discloses a slipping-preventing zipper head, which comprises a sliding block body and a cap, wherein the sliding block body comprises an upper wing plate, a guide post, a lower wing plate, and a locking mechanism, wherein the upper wing plate is provided with a connecting part; the cap comprises a hinged part arranged on the front end and a fastening part arranged on the rear end; the hinged part of the cap is hinged with the connecting part; the locking mechanism comprises a locking blocks which can be arranged on the upper wing plate movably; a gap is formed between the front end wall of the cap and the upper wing plate; the locking mechanism is arranged in a way of corresponding to the cap; and when the zipper head works, the locking block of the locking mechanism can be moved to the gap to press against the front end wall of the cap. The slipping-preventing zipper head has the advantages of simple structure, self-locking and stability.

Description

On-slip formula slider of zipper fastener

Technical field

The present invention relates to a kind of slider of zipper fastener, the particularly a kind of on-slip formula slider of zipper fastener that can artificially control locked state.

Background technology

Existing slider of zipper fastener is broadly divided into self-locking zipper slider and non-self-locking zipper slider.Slip along zipper strip may take place in non-self-locking zipper slider under non-artificial condition, and the self-locking mechanism of self-locking zipper slider by special setting can prevent the slip under the non-artificial condition.No. 96208768.8 Chinese utility model patent of Granted publication promptly disclosed a kind of slider of zipper fastener with lock as on March 5th, 1997, and it comprises compels to close device, a spring, an arrester hook and a lock core.This is compeled to close device and comprises a upper plate, offers porosely on this upper plate, and this compels to close device upper end to being provided with a cavity by lock core, and this cavity bottom is to being provided with a cylinder chamber by spring.This spring places in this cylinder chamber, and the tail end of this arrester hook is pressed on this spring, and its hook is proper compels to close the hole of device upper plate to this.The bottom of this lock core is a slope, and this lock core places in this cavity and pushes down the tail end of this arrester hook.When locking this slider of zipper fastener, rotate this lock core and make the resilience that makes progress of this spring, the tail end of this arrester hook rises, and the hook end of this arrester hook descends and hooks zipper teeth simultaneously, with this slider of zipper fastener locking.Otherwise, rotate this lock core and compress this spring, the tail end of this arrester hook is descended, the hook end of this arrester hook is raised simultaneously, leaves zipper teeth, makes this slider of zipper fastener release.

Yet this lock core directly cooperates with the less arrester hook of this volume, and this just makes the complex structure of this slider of zipper fastener, assembles comparatively difficult.

In addition, August 21 nineteen ninety, the 4th, 949, No. 434 U.S.'s patents of invention of bulletin also disclosed a kind of zipper head, and it comprises a slide body, a cap and a snap the line.This cap is provided with a cramp in the rear end, this cap front end is articulated in the front end of this slide body.This snap the line one end is fixed on this slide body, and other end bullet withstands on the rear end of this cap, and the cramp on this cap stretches in the meshing space of zipper teeth, thereby makes this zipper head reach the purpose of on-slip.

Yet, under unexpected condition, when external force is applied on the cap of this zipper head, the cramp on this cap is extracted from the zipper teeth gap, cause this zipper head to slide, this just makes this zipper head self-locking built on the sand.

Summary of the invention

In view of this, be necessary to provide a kind of simple in structure, on-slip formula slider of zipper fastener that self-locking is firm.

A kind of on-slip formula slider of zipper fastener, comprise slide body and cap, this slide body comprises upper flange, guide pillar and lower wing plate, this upper flange is provided with connecting portion, this cap comprises the articulated section of being located at front end and the buckling parts of being located at the rear end, the articulated section of this cap is articulated on this connecting portion, also comprise locking mechanism, this locking mechanism comprises locking block, this locking block is arranged on this upper flange movably, forms the gap between the front bulkhead of this cap and this upper flange, and this locking mechanism is to should the cap setting, during work, the locking block that moves this locking mechanism can be replaced the front bulkhead of this cap to this gap.

Compared with prior art, slider of zipper fastener of the present invention is by being provided with this locking mechanism, utilize the locking block of this locking mechanism to replace this cap, this cap is replaced can't rotate, make the buckling parts and the chain tooth of this slider of zipper fastener keep fastening, thereby realize the on-slip function, make this slider of zipper fastener have advantage of simple structure.When external force acted on this cap, this cap was subjected to replacing of this locking block and can't rotates.Open this slider of zipper fastener, this locking block that must slide is earlier separated this locking block and this cap, and this cap could rotate, and this just makes this slider of zipper fastener have the firm advantage of self-locking.

Description of drawings

The present invention is further illustrated below in conjunction with drawings and the specific embodiments.

Fig. 1 is the three-dimensional exploded view of on-slip formula slider of zipper fastener first embodiment of the present invention.

Fig. 2 is the three-dimensional assembly diagram of on-slip formula slider of zipper fastener shown in Figure 1.

Fig. 3 is the cutaway view along A-A line among Fig. 2.

Fig. 4 is an on-slip formula slider of zipper fastener shown in Figure 1 schematic diagram when opening locking mechanism.

Schematic diagram when Fig. 5 is on-slip formula slider of zipper fastener release shown in Figure 1.

Fig. 6 is the schematic diagram of on-slip formula slider of zipper fastener second embodiment of the present invention

Fig. 7 is the three-dimensional exploded view of on-slip formula slider of zipper fastener the 3rd embodiment of the present invention.

Fig. 8 is the three-dimensional assembly diagram of on-slip formula slider of zipper fastener shown in Figure 7.

Fig. 9 is the cutaway view along B-B line among Fig. 8.

Figure 10 is an on-slip formula slider of zipper fastener shown in Figure 7 schematic diagram when opening locking mechanism.

Schematic diagram when Figure 11 is on-slip formula slider of zipper fastener release shown in Figure 7.

Figure 12 is the three-dimensional exploded view of on-slip formula slider of zipper fastener the 4th embodiment of the present invention.

The explanation of Reference numeral:

100,100a, 100b, 100c slider of zipper fastener 44 snapping portions

10 slide bodies, 46 buckling parts

11

guide pillars

50,50b locking mechanism

112,112b accepting groove 51,51c lock tube

114 storage tanks, 512 openings

12 upper flanges, 514 retainer plates

122 slots to make way, 516 slideways

124

holddown grooves

52,52a, 52b locking block

126 chutes, 521 clicking sections

128 blocks, 522 prelocalization grooves

13,13b gap 524 back locating slots

14 lower wing plates 53,53c lock core

16 connecting portions, 532 key slot

162 grooves, 534 push rods

54 place kick of 18 abutting parts

20 snap the line, 55 cover plates

30 pulling-on pieces, 552 keyholes

40

caps

56,56b spring

42 articulated sections, 57 keys

422 front bulkheads

The specific embodiment

Fig. 1 is the three-dimensional exploded view of on-slip formula slider of zipper fastener first embodiment of the present invention.This slider of zipper fastener 100 comprises a slide body 10, a snap the line 20, a pulling-on piece 30, a cap 40 and a locking mechanism 50.This pulling-on piece 30 is nested with on this cap 40, and an end of this snap the line 20 is fixed on this slide body 10, and the other end is replaced this cap 40 downwards, and this cap 40 is articulated on this slide body 10.50 pairs of this locking mechanisms should cap 40 be arranged on the front end of this slide body 10.During work, this locking mechanism 50 is used to replace this cap 40, prevents that this cap 40 from rotating relative to this slide body 10.

Please refer to Fig. 1, this cap 40 is the rectangle shell structure of a side opening, and this cap 40 comprises an articulated section 42, a snapping portion 44 and a buckling parts 46.This articulated section 42 is positioned at the front end of this cap 40, and this snapping portion 44 is positioned at the rear end of this cap 40, and this buckling parts 46 extends to form laminated structure downwards from the rear end of these cap 40 left side walls.This articulated section 42 comprises a front bulkhead 422, and this front bulkhead 422 is positioned at this cap 40 foremost, and this front bulkhead 422 is vertical platy structure.44 pairs in this snapping portion should snap the line 20 settings be hook-shaped (as shown in Figure 3).The sprocket that this buckling parts 46 is used for embedding slide fastener makes this slider of zipper fastener 100 self-lockings.

Please refer to Fig. 1, this slide body 10 is by metal material one die cast, and it comprises a guide pillar 11, a upper flange 12, a lower wing plate 14, a junction 16 and an abutting part 18.This upper flange 12 is connected by this guide pillar 11 with the front end of this lower wing plate 14, and this upper flange 12, this guide pillar 11 and this lower wing plate 14 are combined to form a roughly Y-shaped slideway and supply two sprockets (figure does not show) of a slide fastener to pass through.16 pairs of this connecting portions should cap 40 the district connect the front end that portion 42 is arranged on this upper flange 12, the snapping portion 44 that 18 pairs of this abutting parts should cap 40 is arranged on the rear end of this upper flange 12.12 pairs of this upper flanges should be provided with a slot to make way 122 by buckling parts 46.10 pairs of this slide bodies should be provided with a holddown groove 124 by snap the line 20 on this upper flange 12, this holddown groove 124 is used to accommodate this snap the line 20, and an end of this snap the line 20 is fixed on this slide body 10, and other end bullet withstands on the snapping portion 44 (as shown in Figure 3) of this cap 40.This upper flange 12 was provided with the chute 126 that a cross section is "T"-shaped shape before this connecting portion 16, this chute 126 is positioned at the top of this guide pillar 11, an end of this chute 126 and this connecting portion 16 adjacency.This upper flange 12 is provided with two blocks 128 at the other end of this chute 126.After the articulated section 42 of this cap 40 is assembled to this connecting portion 16, form a gap 13 (as shown in Figure 3, Figure 4) between the front bulkhead 422 of this cap 40 and this upper flange 12.This chute 126 is provided with an accepting groove 112 in center bottom extension downwards.

Please refer to Fig. 1, this locking mechanism 50 comprises a locking block 52, a place kick 54 and a spring 56.The cross section of this locking block 52 is to should chute 126 settings being " T " shape.The end face of this locking block 52 upwards protrudes out and is provided with a clicking section 521, and this clicking section 521 makes this locking block 52 of operator's handled easily.This locking block 52 can be arranged in this chute 126 slidingly back and forth, and this locking block 52 is used for embedding the front bulkhead 422 of this gap 13 to replace this cap 40.52 pairs of this locking blocks should place kick 54 be provided with a prelocalization groove 522 and a back locating slot 524 in the bottom, this prelocalization groove 522 all is used to accommodate this place kick 54 with this back locating slot 524, and this prelocalization groove 522 intersects with these back locating slot 524 parts.

Please refer to Fig. 1 to Fig. 3, when assembling this locking mechanism 50, at first, this spring 56 is housed in the accepting groove 112 of this slide body 10 successively with this place kick 54, this spring 56 flexibly supports this place kick 54 makes these place kick 54 parts stretch out this accepting groove 112 (as shown in Figure 3).Then, this locking block 52 is housed in this chute 126.At last, utilize this two block 128 of riveting mechanism riveting, make this two block 128, prevent that this locking block 52 from skidding off from this chute 126, thereby finish assembling this locking mechanism 50 towards these chute 126 middle parts bendings (as shown in Figure 2).

Please refer to Fig. 3 to Fig. 5, when locking this slider of zipper fastener 100, promote this locking block 52 and move right, this locking block 52 is embedded in this gap 13 (as shown in Figure 3).These spring 56 bullets push up in the prelocalization groove 522 that this place kick 54 is connected to this locking block 52, with these locking block 52 location.This locking block 52 is replaced in the bottom of this cap 40 front bulkheads 422, and this cap 40 can't be rotated around this connecting portion 16.The buckling parts 46 of this cap 40 passes the chain tooth snapping of this slot to make way 122 and slide fastener with these slider of zipper fastener 100 lockings.When opening this slider of zipper fastener 100, at first, promote this locking block 52 and be moved to the left along this chute 126, this locking block 52 compresses this place kick 54 downwards, and this spring 56 is subjected to force compresses.This locking block 52 continues to moving to left, and this place kick 54 slips into this back locating slot 524 from this prelocalization groove 522, and these spring 56 bullets push up this place kick 54 with these locking block 52 location (as shown in Figure 4).At this moment, this locking block 52 breaks away from this gap 13, removes replacing these cap 40 front bulkheads 422.Then, lift this cap 40 by this pulling-on piece 30, the elastic force that this cap 40 overcomes this snap the line 20 rotates counterclockwise (as shown in Figure 5) around this connecting portion 16, and this buckling parts 46 is separated from the sprocket (figure does not show) of slide fastener, and this slider of zipper fastener 100 can be slided along the sprocket of slide fastener.

By above narration as can be known, slider of zipper fastener 100 of the present invention is provided with this chute 126 and this locking mechanism 50 by the front end at these upper flange 12 connecting portions 16, this locking block 52 can be arranged in this chute 126 slidingly back and forth, utilize the locking block 52 of this locking mechanism 50 to replace the front bulkhead 422 of these cap 40 articulated sections 42, this cap 40 can't rotate around the connecting portion 16 of this slide body 10, the buckling parts 46 and the chain tooth snapping of this slider of zipper fastener 100, realize the on-slip function, make this slider of zipper fastener 100 have advantage of simple structure.When external force acted on this cap 40, the front bulkhead 422 of this cap 40 can't be rotated by replacing of this locking block 52, thereby this slider of zipper fastener 100 is locked securely.Open this slider of zipper fastener 100, this locking block 52 that must slide is earlier separated this locking block 52 and the front bulkhead 422 of this cap 40, and this cap 40 could rotate and make this slider of zipper fastener 100 releases.Compared to existing technology, when having external force to act on this cap 40 under the unexpected condition, this cap 40 also can't rotate, and makes this slider of zipper fastener 100 have the firm advantage of self-locking.This just makes this slider of zipper fastener 100 can be used for case and bag, tent etc. and requires on the self-locking strong product.This locking block 52 is accurately located but make these spring 56 bullets push up 54 pairs of these locking blocks 52 of this place kick by this prelocalization groove 522 and this back locating slot 524 is set in the bottom, makes this slider of zipper fastener 100 have easy to operate advantage.

Be appreciated that ground, this snap the line 20 also can adopt other flexible member, as long as can bullet push up this cap 40, this buckling parts 46 is embedded in the sprocket of slide fasteners get final product.This locking block 52 is replaced this cap 40 just can prevent that external force under the unexpected condition from causing this cap 40 to rotate, and makes these slider of zipper fastener 100 self-lockings firm, so this slider of zipper fastener 100 is not provided with, and this snap the line 20 is the same to make this slider of zipper fastener 100 self-lockings.This place kick 54 is used for accurately locating this locking block 52 with this spring 56, prevents this locking block 52 from line slip, if this place kick 54 and this spring 56 is not set, these locking block 52 the same these caps 40 of replacing prevent that this cap 40 from rotating.This locking block 52 is provided with this clicking section 521 and makes convenient this locking block 52 that slides of operator, equally can not move this locking block 52 if this clicking section 521 is not set.This chute 126 also can be arranged to other shapes with this locking block 52, as forms such as dovetail grooves, as long as this locking block 52 can slide in this chute 126.

Please refer to Fig. 6, it is depicted as the schematic diagram of on-slip formula slider of zipper fastener second embodiment of the present invention.The difference of this slider of zipper fastener 100a and first embodiment of the invention is that this locking block 52a is the trapezium structure that increases highly gradually substantially.16 pairs of this connecting portions should be provided with groove 162 at front end by locking block 52a, and this groove 162 is used to accommodate this locking block 52a, and this groove 162 is communicated with this chute 126.Simultaneously, this slider of zipper fastener 100a saves the place kick among first embodiment and the setting of spring.In addition, the bottom surface of this locking block 52a is designed comparatively coarsely to increase the frictional resistance between this locking block 52a and this chute 126.

During work, promoting this locking block 52a to the right accommodates in these connecting portion 16 grooves 162 it, to the make progress front bulkhead 422 of this cap 40 of ejection of this locking block 52a, the buckling parts 46 that makes this cap 40 fastens with the sprocket of slide fastener, and prevents the unintentional rotation of this cap 40.Promoting this locking block 52a left can make this cap 40 remove sealed to sprocket.

By above narration as can be known, by this locking block 52a is arranged to trapezium structure, this cap 40 of ejection that can be continuous rotates, and makes this slider of zipper fastener 100a have advantage simple to operate.By this groove 162 is set on this connecting portion 16, make this locking block 52a can move more multiple spurs from.Certainly, this slider of zipper fastener 100a also can be provided with place kick and this spring among first embodiment, makes this slider of zipper fastener 100a self-locking more firm.

Please refer to Fig. 7, it is depicted as the three-dimensional exploded view of on-slip formula slider of zipper fastener the 3rd embodiment of the present invention.First difference of this slider of zipper fastener 100b and first embodiment of the invention is that this locking mechanism 50b comprises a lock tube 51, a lock core 53, a cover plate 55, a key 57 and spring 56b.This lock core 53 is cylindric substantially, and these lock core 53 upper ends are to being provided with a key slot 532 by key 57, and this locking block 52b is located at the bottom of this lock core 53, and this locking block 52b is outward extending arc platy structure.This lock tube 51 is arranged on this upper flange 12 and is positioned at before this connecting portion 16, and this lock tube 51 is used to accommodate this lock core 53, and this lock core 53 is freely rotated in this lock tube 51.51 pairs of this lock tubes should cap 40 front bulkhead 422 be provided with an opening 512, the front bulkhead 422 of this cap 40 can be stretched in this lock tube 51 (as Fig. 9, shown in Figure 10).These lock tube 51 upper ends are to being provided with a retainer plate 514 by cover plate 55.These lock tube 51 center bottom are to should lock core 53 extension downwards being provided with a storage tank 114, and the middle part of these storage tank 114 bottoms is to should spring 56b extension downwards being provided with accepting groove 112b.55 pairs of this cover plates should be provided with a keyhole 552 by key 57.Form gap 13b (as Fig. 9, shown in Figure 10) between these cap 40 front bulkheads 422 and this upper flange 12.

Please refer to Fig. 7 to Fig. 9, when assembling this locking mechanism 50b, at first, this spring 56b is housed among this accepting groove 112b.Then, this lock core 53 is housed in this storage tank 114.At last, this cover plate 55 is placed on this lock tube 51 upper ends, utilizes this retainer plate 514 of riveting mechanism riveting (figure does not show), this cover plate 55 is contained in this lock tube 51 rotationally.

Please refer to Fig. 8 to Figure 11, when locking this slider of zipper fastener 100b, at first, the keyhole 552 of this key 57 by this cover plate 55 inserted in the key slot 532 of these lock cores 53 (as shown in Figure 8).Then, rotate this this lock core 53, this locking block 52b embeds this gap 13b, and this locking block 52b replaces this cap 40 front bulkheads 422 (as shown in Figure 9), and this cap 40 can't be rotated.When opening this slider of zipper fastener 100b, this key 57 is inserted in the key slot 532 of this lock core 53, then, this lock core 53 is rotated 180 degree, this locking block 52b is extracted out (as shown in figure 10) from the 13b of this gap.At last, lift this cap 40 by this pulling-on piece 30, this cap 40 clockwise rotates back (as shown in figure 11), and this slider of zipper fastener 100b can slide along the sprocket of slide fastener.

By above narration as can be known, slider of zipper fastener 100b of the present invention is by being provided with this locking mechanism 50b, make the front bulkhead 422 of this cap 40 can stretch in this lock tube 51 by the opening 512 of this lock tube 51, this lock core 53 is housed in this lock tube 51 rotationally, this locking block 52b is arranged on the bottom of this lock core 53, when opening this slider of zipper fastener 100b, must earlier this key 57 be inserted in the key slot 532 of this lock core 53, could rotate this lock core 53 then and make this slider of zipper fastener 100b release, this just makes this slider of zipper fastener 100b have and prevents that other people from malice opening, the advantage that self-locking is firm.

Be appreciated that ground, this spring 56b is used to upspring and pushes up this lock core 53, this lock core 53 can not rotated voluntarily because of vibration make the unexpected release of this slider of zipper fastener 100b, does not replace this cap 40 if the same this locking block 52b that can allow of this spring 56b is not set.By between this lock core 53 and this lock tube 51, setting up a bearing this lock core 53 is housed in this lock tube 51 rotationally, thereby this storage tank 114 needn't be set.

Please refer to Figure 12, it is depicted as the three-dimensional exploded view of on-slip formula slider of zipper fastener the 4th embodiment of the present invention.The difference of this slider of zipper fastener 100c and third embodiment of the invention is that this lock core 53c is provided with a push rod 534 in the bottom, and this push rod 534 is positioned at a side relative with this locking block 52b, and this push rod 534 is used to promote this lock core 53c and rotates.This lock tube 51c is to being provided with a slideway 516 by push rod 534 in the bottom, the outermost end of this push rod 534 is stretched out this slideway 516.Simultaneously, this cover plate 55 saves keyhole is set, and this lock core 53 saves key slot is set.

During operation, when this push rod 534 placed an end of this slideway 516, this locking block 52b can replace this cap 40, prevented that this cap 40 from rotating.When opening this slider of zipper fastener 100c, this push rod 534 can be placed the other end of this slideway 516, like this, this locking block 52b just can't contact with the front bulkhead 422 of this cap 40, and this cap 40 just turns and makes this slider of zipper fastener 100c release.

By above narration as can be known, slider of zipper fastener 100c of the present invention is provided with this slideway 516 by this push rod 534 is set on this lock tube 51c on this lock core 53c, by promoting this push rod 534 this lock core 53c is rotated.Implement to make to compare with the present invention the 3rd, this slider of zipper fastener 100c saves key, keyhole, the key slot that is provided with among the 3rd embodiment, makes this slider of zipper fastener 100c have advantage of simple structure.

Obviously, those skilled in the art can carry out various changes and modification to the embodiment among the present invention and not break away from the spirit and scope of the present invention.Like this, if these in the embodiment of the invention are revised and modification belongs to claim of the present invention and the scope that is equal within, then the embodiment among the present invention also is intended to comprise these changes and modification interior.

Claims

1. A non-slip type slide fastener puller, comprising a slider body and a cap, the slider body includes an upper wing plate, a guide post and a lower wing plate, the upper wing plate is provided with a connecting portion, and the cap cover includes a The pivotal joint at the front end and the buckle joint at the rear end, the pivotal joint of the cap is pivotally connected to the connecting portion, it is characterized in that it also includes a locking mechanism, the locking mechanism includes a locking block, the lock The block is movably arranged on the upper wing, and a gap is formed between the front end wall of the cap and the upper wing. The locking mechanism is set corresponding to the cap. When working, the locking mechanism of the locking mechanism is moved. The block can abut against the front end wall of the cap in the gap.

2 . The anti-slip zipper puller according to claim 1 , wherein the upper wing is provided with a T-shaped chute in front of the connecting portion, and the locking block is reciprocally slidably disposed in the chute. 3 .

3. The anti-slip zipper puller according to claim 2, characterized in that, the front end of the upper wing plate is provided with a stop corresponding to the locking block at the front end of the chute.

4. The anti-slip zipper puller according to claim 3, characterized in that, the locking mechanism also includes a positioning ball and a spring, and the locking block is provided with a front positioning groove and a rear positioning groove at the bottom corresponding to the positioning ball The slider body is provided with a receiving groove corresponding to the spring in the slide groove, and the positioning ball is located on the spring and partially protrudes from the receiving groove.

5. The anti-slip type zipper puller according to any one of claims 1 to 4, characterized in that, it also includes an elastic thread, the slider body is provided with a fixing groove corresponding to the elastic thread, and the rear end of the cap is provided with For the fastening part, one end of the elastic wire is fixed in the fixing groove of the slider body, and the other end abuts against the fastening part of the cap.

6. The anti-slip zipper puller according to claim 2 or 3, characterized in that, the connecting portion is provided with a groove corresponding to the locking block, and the groove communicates with the slide groove.

7. The anti-slip zipper puller according to claim 6, characterized in that, the locking block is in a trapezoidal structure whose height gradually increases.

8. The anti-slip zipper puller according to claim 1, wherein the locking mechanism comprises a lock sleeve and a lock core, the lock sleeve is provided with an opening corresponding to the front wall of the cap, and the lock core is rotatably It is arranged in the lock sleeve, and the locking block is arranged at the bottom of the lock core.

9. The anti-slip zipper puller according to claim 8, characterized in that, the locking mechanism further comprises a spring, a cover plate and a key, and the middle part of the bottom end of the lock sleeve extends downwards corresponding to the lock cylinder to accommodate groove, the middle part of the bottom end of the accommodation groove corresponds to the downward extension of the spring and is provided with the accommodation groove, the upper end of the lock sleeve is provided with a fixed ring corresponding to the cover plate, and the upper end of the lock core and the cover plate are respectively provided with a key slot and a key corresponding to the key. Keyhole.

10. The anti-slip zipper puller according to claim 8, characterized in that, the bottom end of the lock cylinder is further provided with a push rod, the push rod is located on the opposite side of the locking block, and the lock sleeve corresponds to the push rod at The bottom end is provided with a slideway, and the push rod protrudes from the slideway.