CN210809533U

CN210809533U - Double-closed type pull head, double-closed type invisible pull head, zipper and zipper application product

Info

Publication number: CN210809533U
Application number: CN201921698852.7U
Authority: CN
Inventors: 陈昌华
Original assignee: Kee Guangdong Garment Accessories Ltd
Current assignee: Kee Guangdong Garment Accessories Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-23
Anticipated expiration: 2029-10-11

Abstract

The zipper comprises a double-closed type zipper head, a double-closed type invisible zipper head, a zipper and zipper application products, wherein the zipper head body can close a left zipper strip and a right zipper strip; the zipper head body comprises a bottom plate, a cover plate and a connecting column positioned between the bottom plate and the cover plate, and a zipper channel through which a zipper strip can pass is formed between the bottom plate and the cover plate; the beneficial effects of the utility model reside in that: 1. because the slider body is provided with the left fabrication hole and the right fabrication hole, partial internal appearance structures of the left zipper channel and the right zipper channel can be manufactured at least by utilizing the external surface of the molding die core, and the problem that the integrated slider of a zipper channel structure provided with two end channels, the left zipper channel and the right zipper channel cannot be manufactured in the past is solved. Therefore, the integrated slider body can be manufactured by adopting an integrated manufacturing process.

Description

Double-closed type pull head, double-closed type invisible pull head, zipper and zipper application product

Technical Field

The present invention relates to a fastener accessory, and more particularly to a double-closing slider and a double-closing invisible slider capable of keeping a fastener tape closed regardless of whether the slider slides forward or backward on the fastener tape. The invention also relates to a zipper with the zipper puller and a zipper application product with the zipper.

Background

The most common slider in daily life is generally capable of closing or opening a fastener tape in a sliding manner, and such a slider is generally used in an opening portion or a detachable structure of an article. In some special cases, the slider has a completely different usage, for example, it is used only for decoration, and it is not necessary or possible to have an opening when the slider slides; or for adjusting the tightness of a certain part of the fabric. Chinese patent CN200920215805.2 discloses a close-up zipper, which comprises a pair of zipper sliders and zipper pulls, wherein each zipper slider comprises an upper plate and a lower plate, the upper plate is provided with a zipper pull hole arranged perpendicular to the upper plate, the lower plate is provided with a rope loading structure arranged perpendicular to the lower plate, the introduction ports of the pair of zipper sliders are arranged oppositely, and the zipper pulls are simultaneously inserted into the zipper pull holes of the pair of zipper sliders to fix the pair of zipper sliders together. So that the slider, whether pulled to the left or right, maintains the two chain tapes in engagement. The upper rope is sleeved on the rope containing structure and can be used for adjusting tightness of the closing of the openings and cuffs of the trouser legs of the garment. The slider assembly structure formed by the pair of zipper sliders is too complicated to assemble and loose in structure, and the pair of zipper sliders is offset relatively to affect the smoothness of sliding.

Disclosure of Invention

In view of the above technical problems, an object of the present invention is to provide a slider with double closing function, which can be manufactured by an integrated manufacturing process, and a zipper application product using the slider.

The invention firstly provides a double-closed type pull head, which comprises a pull head main body, wherein the pull head main body can close a left zipper tape and a right zipper tape; the zipper puller comprises a puller body and a puller body, wherein the puller body comprises a bottom plate, a cover plate and a connecting column positioned between the bottom plate and the cover plate, and a zipper channel through which a zipper strip can pass is formed between the bottom plate and the cover plate; the zipper is characterized in that the zipper channel comprises an end channel positioned at the front end position and the rear end position of the zipper head body and an intermediate channel positioned between the two end channels, and the end channels are configured into a structure capable of closing the zipper strips; the connecting column is positioned at the approximate middle position of the slider body, and the connecting column configures the middle channel into a left zipper channel for a left zipper belt to pass through and a right zipper channel for a right zipper belt to pass through; relative to the end channel, the left zipper channel and the right zipper channel are respectively and outwards deviated to avoid the connecting column, and the left zipper channel, the right zipper channel and the end channel are smoothly transited and jointed; and a left fabrication hole and a right fabrication hole are respectively arranged on the bottom plate or the cover plate which is positioned at the left side and the right side of the connecting column.

Wherein the end channel is configured to enable closure of the fastener strips such that the fastener strips can be brought into a closed condition regardless of which direction the slider is slid.

The bottom plate or the cover plate positioned on the left side and the right side of the connecting column is respectively provided with a left fabrication hole and a right fabrication hole, the layout positions of the left fabrication hole and the right fabrication hole are defined by the characteristics, and the left fabrication hole and the right fabrication hole are respectively arranged on the bottom plate or the cover plate and respectively correspond to the left zipper channel and the right zipper channel. The left technical hole and the right technical hole are positioned at the approximate middle position of the slider body. In this way, the molding die core can enter the left zipper channel and the right zipper channel through the left fabrication hole and the right fabrication hole, so that at least partial internal shape structures of the left zipper channel and the right zipper channel can be manufactured by utilizing the external shape surface of the molding die core.

The technical scheme can be that the cover plate comprises a left side wall and a right side wall which are respectively arranged on the left side and the right side, the bottom plate comprises a left side wall and a right side wall which are respectively arranged on the left side and the right side, the left side wall and the left side wall are respectively arranged on the left side and the right side, the left side wall and the right side wall are respectively arranged on the left side and the right side, the partial channel of the zipper channel is formed by the left side wall and the right side wall, the left process hole part hole wall is close to the left side wall or the left side wall, and the right process hole part hole wall is close to the right side wall or the right side wall.

The zipper puller further comprises a positioning column, the positioning column is arranged on the cover plate, the zipper puller further comprises a pull piece and a code hook piece, one end of the pull piece is hung on the code hook piece, one end of the code hook piece is rotatably arranged on the positioning column, the other end of the code hook piece penetrates through the cover plate and extends into the zipper channel, and the code hook piece is used for hooking the zipper strip to enable the zipper puller body not to move.

The further technical scheme can also be that the pull head further comprises a connector capable of penetrating through the rope, and the connector is arranged on the pull head body.

In a further aspect, the connector may be in the form of a flat ring, and the connector is connected to the bottom plate or the cover plate and arranged substantially parallel to the bottom plate or the cover plate.

Secondly, the invention firstly provides a double-closed invisible puller, which comprises a puller body, wherein the puller body can close a left zipper tape and a right zipper tape; the puller body comprises a bottom plate, a left vertical side wall and a right vertical side wall which are respectively arranged on the left side edge and the right side edge of the bottom plate, a left cover plate arranged on the top of the left vertical side wall and a right cover plate arranged on the top of the right vertical side wall, wherein the left cover plate and the right cover plate are arranged approximately parallel to the bottom plate, a spacing interval is formed between the left cover plate and the right cover plate, and the left cover plate, the left vertical side wall, the right cover plate, the right vertical side wall and the bottom plate are combined to form a zipper channel through which a zipper can pass; the zipper is characterized in that the zipper channel comprises an end channel positioned at the front end position and the rear end position of the zipper head body and an intermediate channel positioned between the two end channels, and the end channels are configured into a structure capable of closing the zipper strips; a sharp island part is arranged at the approximate middle position of the slider body, the island part is connected to the bottom plate and positioned between the left cover plate and the right cover plate, and the island part configures the middle channel into a left zipper channel through which a left zipper belt can pass and a right zipper channel through which a right zipper belt can pass; with respect to the end channel, the left zipper channel and the right zipper channel are respectively offset outwards to avoid the island part, and the left zipper channel, the right zipper channel and the end channel are in smooth transition connection; the bottom plates positioned on the left side and the right side of the island part are respectively provided with a left fabrication hole and a right fabrication hole, and when viewed from the bottom, part of the left cover plate is positioned in the projection area of the left fabrication hole, and part of the right cover plate is positioned in the projection area of the right fabrication hole; or a left fabrication hole and a right fabrication hole are respectively arranged on the left cover plate and the right cover plate which are positioned on the left side and the right side of the island part.

The bottom plate or the cover plate positioned on the left side and the right side of the island part are respectively provided with a left fabrication hole and a right fabrication hole, the layout positions of the left fabrication hole and the right fabrication hole are defined by the characteristics, and the left fabrication hole and the right fabrication hole are respectively arranged on the bottom plate or the cover plate and respectively correspond to the left zipper channel and the right zipper channel. The left technical hole and the right technical hole are positioned at the approximate middle position of the slider body. In this way, the molding die core can enter the left zipper channel and the right zipper channel through the left fabrication hole and the right fabrication hole, so that at least partial internal shape structures of the left zipper channel and the right zipper channel can be manufactured by utilizing the external shape surface of the molding die core.

Wherein, from the bottom view, part of the left cover plate is positioned in the projection area of the left fabrication hole, and part of the right cover plate is positioned in the projection area of the right fabrication hole, and the above characteristics define that after the slider body is horizontally laid on a horizontal plane through the bottom plate, a top view can be obtained from the top, and a bottom view can be obtained from the bottom. An overlapping area exists between partial left cover plate and the projection area of the left fabrication hole, and the projection area of the left fabrication hole can be wholly or partially projected on the left cover plate; and an overlapping area exists between part of the right cover plate and the projection area of the right fabrication hole, and the projection area of the right fabrication hole can be wholly or partially projected on the right cover plate.

The technical scheme can also be that the hole wall of the left process hole part is close to the left vertical side wall, and the hole wall of the right process hole part is close to the right vertical side wall.

The zipper puller further comprises a pull piece and a code hook piece, one end of the pull piece is hung on the code hook piece, one end of the code hook piece is rotatably arranged on the island portion, the other end of the code hook piece penetrates through the island portion to extend into the zipper channel, and the code hook piece is used for hooking the zipper strip to enable the zipper puller body not to move.

In a further technical solution, the island portion may be higher than the left cover plate or the right cover plate. This facilitates mounting of the pull tab on the island.

In a further aspect, the connector may be in the form of a flat ring, and the connector is connected to the base plate and arranged substantially parallel to the base plate.

According to the double-closing type pull head and the double-closing type invisible pull head structure discussed above, compared with the prior art, the double-closing type invisible pull head has the beneficial technical effects that:

1. because the left technical hole and the right technical hole are formed in the slider body, partial internal appearance structures of the left zipper channel and the right zipper channel can be manufactured at least by utilizing the external surface of the molding die core, and the problem that an integrated slider with a zipper channel structure provided with two end channels, the left zipper channel and the right zipper channel cannot be manufactured in the past is solved. Therefore, the integrated slider body can be manufactured by selectively adopting an integrated manufacturing process. With the slider combination scheme disclosed in the prior patent CN200920215805.2, the integrated slider main body has a simple, compact and stable structure, slides more smoothly on a zipper tape, and can also simplify the assembly operation of the slider.

2. Because in the structure of double-closed draw head, left fabrication hole portion pore wall is close to erect lateral wall or erect the lateral wall under the left side on the left side, right fabrication hole portion pore wall is close to erect lateral wall or erect the lateral wall under the right side on the right side, like this, be favorable to simplifying the structure of molding die. In the double-closed invisible puller structure, the hole wall of the left technical hole part is close to the left vertical side wall, and the hole wall of the right technical hole part is close to the right vertical side wall, so that the structure of the modeling die is also facilitated to be simplified.

3. The zipper puller is characterized in that the zipper puller body is provided with a zipper puller body, the zipper puller body is provided with a zipper puller hook piece, the zipper puller hook piece is used for hooking the zipper strip to enable the zipper puller body not to move, the zipper puller body can be locked on the zipper strip, the zipper puller body can drive the zipper puller hook piece to rotate away from the zipper strip when the zipper puller is.

4. Since the connector is in the form of a flat ring, when the slider is applied to an article such as clothing or luggage, the connector is held in a state substantially parallel to the surface of the article, so that the article is not scratched to increase the sliding resistance of the slider or to leave scratches on the article.

In addition, the invention further provides a zipper, which comprises the double-closed type zipper head or the double-closed type invisible zipper head and a pair of zipper strips, wherein the double-closed type zipper head or the double-closed type invisible zipper head is arranged on the zipper strips in a sliding manner.

Finally, the invention also provides a zipper application product, which comprises the zipper and a product body, wherein the zipper is arranged on the product body.

The technical scheme is that the product main body comprises a clothes body part and a hat connected to the clothes body part, and a hat opening contraction strip is arranged at the hat opening part of the hat; the hat opening shrinking device is characterized by further comprising a pair of zippers which are arranged on the clothes body in a left-right split mode, connectors for penetrating the rope strips are arranged on the zippers, two ends of the hat opening shrinking belt strip penetrate the connectors of the pair of zippers respectively, and therefore the end position of the hat opening shrinking belt strip can be adjusted by pulling the zippers, and further the tightness of the hat opening portion can be adjusted.

The invention has the characteristics and advantages, so the invention can be applied to the double-closed type pull head, the double-closed type invisible pull head, the zipper and the zipper application product.

Drawings

Fig. 1 is a schematic perspective view of a double-closing invisible slider 100 to which the present invention is applied;

FIG. 2 is an exploded view of the double-closing invisible slider 100;

fig. 3 is a schematic structural view of the slider body 200, in which a) is a schematic structural view in a top view direction of the slider body 200, and b) is a schematic structural view in a bottom view direction of the slider body 200;

FIG. 4 is a side view of the slider body 200;

FIG. 5 is a schematic cross-sectional view taken along the line A-A in FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;

fig. 7 is a schematic perspective view of a double closing slider 100a to which the present invention is applied;

FIG. 8 is a side view of the double close slider 100 a;

FIG. 9 is a schematic cross-sectional view taken along line C-C of FIG. 8;

FIG. 10 is a schematic bottom view of the double close slider 100 a;

FIG. 11 is a schematic view of a structure of a slide fastener 300 to which the invisible slider 100 is applied;

fig. 12 is a schematic view of the structure of a zipper application article 400 to which the zipper 300 is applied.

Detailed Description

The structure of the double-closed slider, the double-closed invisible slider, the zipper and the zipper application product applying the technical scheme of the invention are further described with reference to the accompanying drawings.

As shown in fig. 1 to 6, a double-closure invisible slider 100 comprises a slider body 200, wherein the slider body 200 can close left and right zipper tapes; the slider body 200 comprises a bottom plate 1, a left vertical side wall 2 and a right vertical side wall 3 which are respectively arranged on the left side edge and the right side edge of the bottom plate 1, a left cover plate 4 arranged on the top of the left vertical side wall 2 and a right cover plate 5 arranged on the top of the right vertical side wall 3, wherein the left cover plate 4 and the right cover plate 5 are approximately parallel to the bottom plate 1 and are arranged with a space interval between the left cover plate 4 and the right cover plate 5, the left vertical side wall 2 and the right vertical side wall 3 and the bottom plate 1 are combined to form a zipper channel 6 which can be passed by a zipper. The zipper channel 6 includes end channels (61, 62) located at both front and rear end positions of the slider body 200 and an intermediate channel located between the two end channels (61, 62), and the end channels (61, 62) are configured to be able to close zipper tapes, and the zipper tapes can be in a closed state regardless of which direction the slider 100 is slid. A sharp island 7 is provided at a substantially middle position of the slider body 200, the island 7 is connected to the bottom plate 1 and is located between the left cover plate 4 and the right cover plate 5 and is higher than the left cover plate 4 and the right cover plate 5, the island 7 configures the middle channel as a left zipper channel 63 through which a left zipper tape can pass and a right zipper channel 64 through which a right zipper tape can pass; the left and right zipper channels 63, 64 are respectively offset outwardly from the island 7 relative to the end channels (61, 62) to give the slider body 200a wide-center narrow-end profile. The left zipper channel 63, the right zipper channel 64 and the end channels (61, 62) are joined in a smooth transition.

As shown in fig. 5 and 6, a left tooling hole 11 and a right tooling hole 12 are respectively formed in the bottom plate 1 located on the left and right sides of the island portion 7, and when viewed from the bottom, part of the left cover plate 4 is located in a projection area of the left tooling hole 11, and part of the right cover plate 5 is located in a projection area of the right tooling hole 12. The left and right tooling holes 11 and 12 are located at a substantially middle position of the slider body 200. In this way, the molding die core can pass through the left fabrication hole 11 and the right fabrication hole 12 and enter the left zipper channel 63 and the right zipper channel 64, so that at least partial internal shape structures of the left zipper channel 63 and the right zipper channel 64 can be manufactured by utilizing the external surface of the molding die core, and the problem that the manufacturing of the integrated slider with the zipper channel structure provided with the two end channels, the left zipper channel and the right zipper channel cannot be solved in the past is solved. Thus, the slider body 200 can be manufactured by an integrated manufacturing process to produce an integrated slider body 200. With the slider combination scheme disclosed in the prior patent CN200920215805.2, the integrated slider body 200 has a simple, compact and stable structure, slides more smoothly on a zipper tape, and can also simplify the assembly operation of the slider. Furthermore, the partial hole wall of the left fabrication hole 11 is close to the left vertical side wall 2, and the partial hole wall of the right fabrication hole 12 is close to the right vertical side wall 3, so that the structure of the modeling mold can be simplified. Of course, in other embodiments, the left and right tooling holes 11 and 12 may be respectively disposed on the left and right cover plates 4 and 5 located on the left and right sides of the island portion 7.

As shown in fig. 2, the slider 100 further comprises a pull tab 900 and a hooking piece 9, wherein one end of the pull tab 900 is hung on the hooking piece 9, one end 91 of the hooking piece 9 is rotatably arranged on the island portion 7, the other end 92 of the hooking piece extends into the zipper channel 6 through the through hole 70 on the island portion 7, and the hooking piece 9 is used for hooking the zipper tape so that the slider body 200 cannot move. In this way, the slider body 200 can be locked to the zipper tape and can in turn drive the hook member 9 to rotate away from the zipper tape when the pull tab 900 is pulled, and the slider 100 can in turn slide on the zipper tape. The slider 100 further includes a connector 8 capable of being threaded with a string, and the connector 8 is disposed on the slider body 200. The connector 8 is in the form of a flat ring, and the connector 8 is attached to the base plate 1 and arranged substantially parallel to the base plate 1. Thus, when the slider 100 is applied to an article such as clothing or luggage, the connector 8 is held in a substantially parallel state with the surface of the article, so that the article is not scratched to increase the sliding resistance of the slider 100 or to leave scratches on the article.

As shown in fig. 7 to 10, the structure of a double closing type slider 100a is schematically illustrated, and includes a slider body 200a, wherein the slider body 200a can close left and right fastener tapes; the slider body 200a includes a bottom plate 1a, a cover plate 4a, and a connecting post 7a located between the bottom plate 1a and the cover plate 4a, and a zipper passage 6a through which a zipper tape can pass is formed between the bottom plate 1a and the cover plate 4 a. The zipper path 6a includes end paths (61 a, 62 a) at both front and rear end positions of the slider body 200a and an intermediate path between the two end paths (61 a, 62 a), and the end paths (61 a, 62 a) are configured in a structure capable of closing zipper tapes. The coupling post 7a is located at a substantially central position of the slider body 200a, and the coupling post 7a configures the central passage as a left fastener tape passage 63a through which a left fastener tape can pass and a right fastener tape passage 64a through which a right fastener tape can pass. The left and right zipper channels 63a, 64a are respectively offset outwardly from the connecting post 7a with respect to the end channels (61 a, 62 a), thereby giving the slider body 200a profile that is wide in the middle and narrow at both ends. The left zipper channel 63a, the right zipper channel 64a and the end channels (61 a, 62 a) are joined in smooth transition. The bottom plate 1a positioned at the left side and the right side of the connecting column 7a is respectively provided with a left fabrication hole 11a and a right fabrication hole 12 a. Further, the left upper vertical sidewall 2a and the right upper vertical sidewall 3a of the cover plate 4a, which are separately disposed on the left and right, respectively, correspond to the left lower vertical sidewall 21a and the right lower vertical sidewall 31a of the bottom plate 1a at intervals, a space between the left upper vertical sidewall 2a and the left lower vertical sidewall 21a forms a partial passage of the zipper passage 6a, a space between the right upper vertical sidewall 3a and the right lower vertical sidewall 31a forms a partial passage of the zipper passage 6a, a partial hole wall of the left fabrication hole 11a is close to the left lower vertical sidewall 21a, and a partial hole wall of the right fabrication hole 12a is close to the right lower vertical sidewall 31 a. Of course, in other embodiments, the left fabrication hole 11a and the right fabrication hole 12a may be disposed on the cover plate 4a, the wall of the left fabrication hole 11a is partially adjacent to the left upright sidewall 2a, and the wall of the right fabrication hole 12a is partially adjacent to the right upright sidewall 3 a.

As shown in fig. 7, the slider body 200a further includes a positioning column 41a, the positioning column 41a is disposed on the cover plate 4a, the slider 100a further includes a pull-tab and a hook member (not shown in the drawings, and can be understood with reference to fig. 2), one end of the pull-tab is hung on the hook member, one end of the hook member is rotatably disposed on the positioning column 41a, the other end of the hook member passes through the cover plate 4a and extends into the zipper channel, the hook member is configured to hook the zipper tape so that the slider body 200a does not move, the hook member can be driven to rotate away from the zipper tape when the pull-tab is pulled, and the slider 100a can slide on the zipper tape. The slider 100a further includes a connector 8a capable of being threaded with a string, and the connector 8a is disposed on the slider body 200 a. The connector 8a has a flat ring shape, and the connector 8a is connected to the base plate 1a and arranged substantially parallel to the base plate 1 a. Of course, in other embodiments, the connector 8a may be attached to the cover plate 4a and arranged substantially parallel to the cover plate 4 a.

As shown in fig. 11, the present invention further provides a zipper 300, comprising a pair of zipper tapes (301, 302) and a double-closed invisible slider 100 slidably disposed on the pair of zipper tapes (301, 302), wherein the zipper 300 is an invisible zipper. Of course, in other embodiments, the double-closing invisible slider 100 may be replaced with a double-closing slider 100a, in which case the zipper is a normal zipper.

As shown in fig. 12, the present invention also provides a zipper application article 400 comprising the zipper 300 and an article body 401, the zipper 300 being disposed on the article body 401. In this embodiment, the zipper application article 400 is an article of clothing. The product main body 401 includes a body part 405 and a cap 402, and a cap shrink band 404 is provided at a cap opening part 403 of the cap 402. The clothing product further comprises a pair of the zipper 300 which is arranged on the clothing body part 405 in a left-right split mode, the zipper 100 on the zipper 300 is provided with a connector 8 for penetrating a rope, and two ends of the cap opening contraction string 404 are respectively penetrated on the pair of the connectors 8, so that the end position of the cap opening contraction string 404 can be adjusted by pulling the zipper 100, and the tightness of the cap opening part 403 can be adjusted.

Claims

1. The double-closed type pull head comprises a pull head main body, wherein the pull head main body can close the left and right zipper strips; the zipper puller comprises a puller body and a puller body, wherein the puller body comprises a bottom plate, a cover plate and a connecting column positioned between the bottom plate and the cover plate, and a zipper channel through which a zipper strip can pass is formed between the bottom plate and the cover plate; the zipper is characterized in that the zipper channel comprises an end channel positioned at the front end position and the rear end position of the zipper head body and an intermediate channel positioned between the two end channels, and the end channels are configured into a structure capable of closing the zipper strips; the connecting column is positioned at the approximate middle position of the slider body, and the connecting column configures the middle channel into a left zipper channel for a left zipper belt to pass through and a right zipper channel for a right zipper belt to pass through; relative to the end channel, the left zipper channel and the right zipper channel are respectively and outwards deviated to avoid the connecting column, and the left zipper channel, the right zipper channel and the end channel are smoothly transited and jointed; and a left fabrication hole and a right fabrication hole are respectively arranged on the bottom plate or the cover plate which is positioned at the left side and the right side of the connecting column.

2. The double close type slider according to claim 1, wherein said cover plate comprises a left upper vertical sidewall and a right upper vertical sidewall which are respectively disposed at left and right sides, said bottom plate comprises a left lower vertical sidewall and a right lower vertical sidewall which are respectively disposed at left and right sides, said left upper vertical sidewall corresponds to said left lower vertical sidewall up and down and is spaced apart from said left lower vertical sidewall to form a partial passage of said slide fastener passage, said right upper vertical sidewall corresponds to said right lower vertical sidewall up and down and is spaced apart from said right lower vertical sidewall to form a partial passage of said slide fastener passage, said left process hole portion hole wall is close to said left upper vertical sidewall or said left lower vertical sidewall, and said right process hole portion wall is close to said right upper vertical sidewall or said right lower vertical sidewall.

3. The double-closing type slider as claimed in claim 1, wherein the slider body further comprises a positioning column, the positioning column is disposed on the cover plate, the slider further comprises a pull-tab and a code hook member, one end of the pull-tab is hung on the code hook member, one end of the code hook member is rotatably disposed on the positioning column, the other end of the pull-tab passes through the cover plate and extends into the zipper channel, and the code hook member is used for hooking the zipper tape to prevent the slider body from moving.

4. The double-closing type slider according to any one of claims 1 to 3, wherein the slider further comprises a connector capable of being threaded with a string, and the connector is provided on the slider body.

5. The double closure pull head of claim 4, wherein the connector is in the form of a flat ring, the connector being attached to and arranged substantially parallel to the bottom or cover plate.

6. The double-closed invisible zipper comprises a zipper body, wherein the zipper body can close a left zipper strip and a right zipper strip; the puller body comprises a bottom plate, a left vertical side wall and a right vertical side wall which are respectively arranged on the left side edge and the right side edge of the bottom plate, a left cover plate arranged on the top of the left vertical side wall and a right cover plate arranged on the top of the right vertical side wall, wherein the left cover plate and the right cover plate are arranged approximately parallel to the bottom plate, a spacing interval is formed between the left cover plate and the right cover plate, and the left cover plate, the left vertical side wall, the right cover plate, the right vertical side wall and the bottom plate are combined to form a zipper channel through which a zipper can pass; the zipper is characterized in that the zipper channel comprises an end channel positioned at the front end position and the rear end position of the zipper head body and an intermediate channel positioned between the two end channels, and the end channels are configured into a structure capable of closing the zipper strips; a sharp island part is arranged at the approximate middle position of the slider body, the island part is connected to the bottom plate and positioned between the left cover plate and the right cover plate, and the island part configures the middle channel into a left zipper channel through which a left zipper belt can pass and a right zipper channel through which a right zipper belt can pass; with respect to the end channel, the left zipper channel and the right zipper channel are respectively offset outwards to avoid the island part, and the left zipper channel, the right zipper channel and the end channel are in smooth transition connection; the bottom plates positioned on the left side and the right side of the island part are respectively provided with a left fabrication hole and a right fabrication hole, and when viewed from the bottom, part of the left cover plate is positioned in the projection area of the left fabrication hole, and part of the right cover plate is positioned in the projection area of the right fabrication hole; or a left fabrication hole and a right fabrication hole are respectively arranged on the left cover plate and the right cover plate which are positioned on the left side and the right side of the island part.

7. The double-closing invisible pull head according to claim 6, wherein the left countersink aperture wall is adjacent to the left upstanding sidewall and the right countersink aperture wall is adjacent to the right upstanding sidewall.

8. The invisible double-closure slider according to claim 6, wherein said slider further comprises a pull-tab and a code hook, one end of said pull-tab being hung on said code hook, and one end of said code hook being pivotally arranged on said island and the other end extending through said island into said zipper channel, said code hook being adapted to hook the zipper strip so that said slider body does not move.

9. The double-closing invisible slider according to claim 6, wherein said island is raised above said left cover plate or said right cover plate.

10. The invisible double-closing slider according to any one of claims 7 to 9, further comprising a connector through which a string can be threaded, wherein the connector is provided on the slider body.

11. The double-closing invisible slider according to claim 10, characterized in that said connector is in the form of a flat ring, said connector being connected to said base plate and being arranged substantially parallel thereto.

12. A zipper, comprising the double-closure slider as set forth in any one of claims 1 to 5 or the double-closure invisible slider as set forth in any one of claims 6 to 11, and a pair of zipper tapes, the double-closure slider or the double-closure invisible slider being slidably disposed on the zipper tapes.

13. An article for zipper application comprising the zipper of claim 12 and an article body, said zipper being disposed on said article body.

14. The zipper-applied article according to claim 13, wherein the article body comprises a body part and a cap attached to the body part, and a cap-neck contraction band is provided at a neck portion of the cap; the hat opening shrinking device is characterized by further comprising a pair of zippers which are arranged on the clothes body in a left-right split mode, connectors for penetrating the rope strips are arranged on the zippers, two ends of the hat opening shrinking belt strip penetrate the connectors of the pair of zippers respectively, and therefore the end position of the hat opening shrinking belt strip can be adjusted by pulling the zippers, and further the tightness of the hat opening portion can be adjusted.