CN112656095A - Woven bag anti-falling self-locking zipper - Google Patents

Abstract

The invention discloses an anti-drop self-locking zipper for woven bags, which comprises a woven belt, a chain head, a locking claw and a pull tongue, wherein the locking claw is wavy and comprises a splicing tail at the tail part and a sharp corner at the head part, the head part and the tail part are inwards converged, the splicing tail is inwards inclined, and the sharp corner is vertically arranged; a through inserting port is arranged on the chain head, an inclined plane matched with the inserting tail is arranged on the inner side of the inserting port, and the inserting tail is inserted into the inserting port; the sharp corner can penetrate through the insertion hole to insert and remove the zipper teeth. The front part of the pull tongue is provided with a gap hole, the rod part at the front end of the pull tongue is sleeved between the two petal plates of the base, the inner side of the rod part is provided with a warping table, the warping table is positioned between the two bases and positioned on the inner side of the head part of the locking claw, and the warping table is not contacted with the pull tongue when the pull tongue is horizontally placed; the pull tab rotates, and the warping platform can drive the head of the locking claw to move upwards to drive the sharp corner to be separated from the zipper teeth. The invention can pull the chain head when the pull tab is rotated, has the self-locking function, good anti-falling effect and anti-theft function, and is suitable for the mailbag industry.

Description

Woven bag anti-falling self-locking zipper

Technical Field

The invention relates to the technical field of zippers, in particular to a woven bag anti-falling self-locking zipper.

Background

A slide fastener is a coupling member for coupling and separating articles by means of a continuous arrangement of fastener elements, and is used in a wide range of fields such as clothing, bags, tents, etc. as a daily necessity. The zipper is composed of zipper teeth, zipper heads or locking pieces and the like. The fastener elements are key parts, and directly determine the side pull strength of the zipper. Generally, a zipper has two zipper tapes, each zipper tape is provided with a row of zipper teeth, and the two rows of zipper teeth are arranged in a staggered manner. The zipper teeth at two sides are clamped by the pull head, and the zipper teeth at two sides can be mutually meshed or separated by sliding the pull tab.

The parcel, the postbag that adopt the zip fastener preparation, the wear-resisting firm braided bag of cooperation can used repeatedly, reduces the extravagant phenomenon of trades such as express delivery, nevertheless in freight transportation or distribution process, because the zip fastener is pulled open easily, stolen phenomenon appears easily, and the zip fastener receives thrust or pulling force easily after sealing simultaneously, tears when the non-use draws zipper head apart, causes the inefficacy of sealed effect.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the woven bag anti-falling self-locking zipper, which solves the problems that the existing mailbag zipper is easy to be stolen and is easy to be torn off when a zipper puller is not used, so that the sealing effect is invalid through an innovative structure.

In order to achieve the purpose, the invention is realized by the following technical scheme: an anti-drop self-locking zipper for woven bags comprises

The zipper is characterized in that the cloth belt is woven by nylon, zipper teeth are sewn on the cloth belt, the two layers of zipper teeth are respectively positioned on the upper side edge and the lower side edge of the cloth belt,

the chain head is triangular and divided into an upper layer and a lower layer, a retaining ring is arranged above the head of the chain head, the retaining ring is positioned on the left side or the right side of the center of the chain head, one side close to the center is thickened, a through hole is formed in the center of the retaining ring, when the two chain heads are close to each other, the retaining rings are symmetrical, and the chain heads can be locked and loosened through a lock penetrating through the retaining rings; the upper surface of the chain head is provided with a base and two limiting blocks which are symmetrically arranged along the central plane of the chain head, the base is composed of two petal plates,

the locking claw is wave-shaped and comprises a splicing tail at the tail part and a sharp corner at the head part, the head part and the tail part are converged inwards, the splicing tail is inclined inwards, and the sharp corner is vertically arranged; a through inserting port is arranged on the chain head, an inclined plane matched with the inserting tail is arranged on the inner side of the inserting port, and the inserting tail is inserted into the inserting port; the chain head is also provided with a through jack which is positioned between the bases, the sharp corner can penetrate through the jack to be inserted into and pulled out of the chain tooth, and the movement of the chain head is limited when the sharp corner is inserted into a gap of the chain tooth;

the front part of the pull tongue is provided with a gap, the rod part at the front end of the pull tongue is sleeved between the two petal plates of the base, the inner side of the rod part is provided with a warping table, the warping table is positioned between the two bases and positioned on the inner side of the head part of the locking claw, and the warping table is not contacted with the pull tongue when the pull tongue is horizontally placed; the pull tab rotates, and the warping platform can drive the head of the locking claw to move upwards to drive the sharp corner to be separated from the zipper teeth.

Furthermore, the upper surface of the chain head is provided with a groove, the groove is connected with the interface and the jack and is positioned between the two limit blocks and the base, the tail part of the locking claw is embedded into the groove, and the head part of the locking claw is limited by the groove.

Furthermore, the chain head is made of metal and plated on the surface.

Further, the chain head, the base and the limiting block are integrally processed.

Furthermore, after the front end of the pull tab is placed in, the two petal plates of the base deform under external force to lock the front end of the pull tab.

Furthermore, the anti-skid protrusions are arranged below the tail part of the pull tab, which is far away from the base, and the anti-skid protrusions exceed the lower surface of the pull tab by no less than 1mm, so that the pull tab is convenient to pull.

The working process and principle of the invention are as follows:

the two zipper heads and the pull tongue form a group, after the two zipper heads and the pull tongue are sewn on a bag-type article, the two zipper heads can slide under the action of the pull tongue after the pull tongue is rotated, after the cloth belt is closed, the retaining rings are aligned, and the zipper can be locked through the lock, so that the occurrence of theft is prevented.

When the lock is not used, the zipper head is moved to any position, then the pull tongue is horizontally placed, the head part of the lock claw can downwards penetrate through the jack on the zipper head under the elastic action of the inserting tail and is inserted into a gap between the zipper teeth to limit the movement of the zipper head, and the zipper head can be positioned at any position of the cloth belt 1 and cannot slide under the action of external force except the pull tongue; when the pull tongue is rotated, the warping platform of the pull tongue rotates to push the head of the locking claw to move upwards, the elastic action of the insertion tail is overcome, the sharp corner is separated from the zipper teeth, and the lock head can freely move on the zipper teeth.

The locking claw is inserted into the inserting port, needs to be unfolded and deformed due to the inclined arrangement, is not easy to be separated under the action of elasticity after being inserted, the head of the locking claw moves downwards under the action of the elasticity of the inserting tail after the pull tab is loosened, and the sharp corner is continuously inserted into the gap of the zipper teeth.

The installation method of the invention is that the rod part of the pull tab is firstly placed between the two clack plates of the base, then the locking claw is inserted into the inserting hole, the sharp corner at the front end of the locking claw passes through the inserting hole and is inserted into the zipper teeth, and the upper ends of the two clack plates of the base are sealed, so that the rod part of the pull tab is not easy to be separated.

The invention provides an anti-drop self-locking zipper for woven bags. Compared with the prior art, the method has the following beneficial effects:

1. according to the woven bag anti-falling self-locking zipper, the laterally deviated buckles are arranged on the zipper heads and can be matched in pairs, and after the zipper is locked, the buckles are locked through the lock, so that the anti-theft function is realized, and the goods are prevented from being lost in the transportation and distribution processes;

2. according to the invention, the chain head is provided with the locking claw, when the pull tongue is horizontally placed, the sharp corner is inserted into the chain tooth under the elastic action of the insertion tail, so that the chain head is prevented from sliding and disengaging under the action of external force; when the pull tab is rotated, the front end of the lock claw is pushed by the raised platform on the pull tab to move upwards, the elasticity of the lock claw is larger than that of the insertion tail, the sharp corner moves upwards, and the zipper tooth is separated; the zipper head can be pulled only when the pull tongue is rotated, the zipper head has a self-locking function, the anti-falling effect is good, the zipper can be normally unzipped, and the structure is reasonable and stable;

3. the chain head matched with the double-row chain tooth is plated with metal, so that the chain head is higher in durability and longer in service life.

Drawings

FIG. 1 is a schematic top view of the woven bag anti-drop self-locking zipper of the present invention;

FIG. 2 is a schematic perspective view of the woven bag anti-drop self-locking zipper of the present invention;

FIG. 3 is a schematic perspective view of a single zipper head and a single cloth tape of the woven bag anti-drop self-locking zipper of the present invention;

FIG. 4 is an enlarged schematic top view of a single zipper head and a pull tab of the woven bag anti-drop self-locking zipper of the present invention;

FIG. 5 is an enlarged perspective view of a single zipper head and a pull tab of the woven bag anti-drop self-locking zipper of the present invention;

FIG. 6 is an enlarged perspective view of the tab in an upright position with the front end of the pawl raised;

FIG. 7 is an enlarged exploded perspective view of the tab in an upright position with the front end of the pawl raised;

FIG. 8 is an enlarged exploded front view of the pull tab in an upright position with the front end of the pawl raised;

FIG. 9 is an enlarged exploded cross-sectional view of the tab in an upright position with the front end of the pawl raised;

fig. 10 is a schematic perspective view of a single zipper head of the woven bag anti-drop self-locking zipper of the present invention.

In the figure: 1. a cloth belt; 2. pulling the tongue; 201. anti-skid protrusions; 202. warping the table; 3. a chain head; 4. a locking claw; 401. splicing the tail; 402. sharp corners; 5. a retaining ring; 6. a zipper tooth; 7. a base; 8. a limiting block; 9. an interface; 10. and (4) inserting the jack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely 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.

Referring to fig. 1-4, a woven bag anti-drop self-locking zipper comprises

The cloth belt 1 is woven by nylon, the cloth belt 1 is sewed with chain teeth 6, the chain teeth 6 are provided with two layers which are respectively positioned on the edges of the upper and lower side surfaces of the cloth belt 1,

the chain head 3 is triangular and divided into an upper layer and a lower layer, a snap ring 5 is arranged above the head of the chain head 3, the snap ring 5 is positioned on the left side or the right side of the center of the chain head 3, one side close to the center is thickened, the center of the snap ring 5 is provided with a through hole, when the two chain heads 3 are close to each other, the snap rings 5 are symmetrical, and the chain head 3 can be locked and loosened through a lock penetrating through the snap rings 5; the upper surface of the chain head 3 is provided with a base 7 and a limiting block 8, two bases 7 and two limiting blocks 8 are respectively arranged symmetrically along the central plane of the chain head 3, the base 7 is composed of two petal plates,

referring to fig. 5-7 and 10, the locking claw 4 is wave-shaped and comprises a plug tail 401 at the tail part and a sharp corner 402 at the head part, the head part and the tail part are converged inwards, the plug tail 401 is inclined inwards, and the sharp corner 402 is vertically arranged; a through inserting port 9 is arranged on the chain head 3, an inclined plane matched with the inserting tail 401 is arranged on the inner side of the inserting port 9, and the inserting tail 401 is inserted into the inserting port 9; the chain head 3 is also provided with through insertion holes 10, the insertion holes 10 are positioned between the bases 7, the sharp corners 402 can penetrate through the insertion holes 10 to be inserted into and pulled out of the chain teeth 6, and when the sharp corners are inserted into gaps of the chain teeth 6, the movement of the chain head 3 is limited;

referring to fig. 8 and 9, the front portion of the pull tab 2 is provided with a hole, a rod portion at the front end of the pull tab 2 is sleeved between two petal plates of the base 7, a raising platform 202 is arranged on the inner side of the rod portion, the raising platform 202 is positioned between the two bases 7 and on the inner side of the head of the locking claw 4, and the raising platform 202 is not in contact with the pull tab 2 when the pull tab 2 is horizontally placed; when the pull tab 2 rotates, the raising platform 202 can drive the head of the locking claw 4 to move upwards, and drive the sharp corner 402 to be separated from the zipper teeth 6.

In practical application, the upper surface of the chain head 3 is provided with a groove, the groove is connected with the plug interface 9 and the jack 10 and is positioned between the two limit blocks 8 and the base 7, the tail part of the locking claw 4 is embedded into the groove, and the head part of the locking claw 4 is limited by the groove.

In practical application, the chain head 3 is made of metal and plated on the surface.

In practical application, the chain head 3, the base 7 and the limiting block 8 are integrally processed.

In practical application, the two flap plates of the base 7 are deformed by external force to lock the front end of the pull tab 2 after the front end of the pull tab 2 is placed.

In practical application, the anti-skid protrusions 201 are arranged below the tail part of the pull tab 2, which is far away from the base 7, and the anti-skid protrusions exceed the lower surface of the pull tab 2 by no less than 1mm, so that the pull tab 2 can be pulled conveniently.

The working process and principle of the invention are as follows:

according to the invention, the two zipper heads 3 and the pull tongue 2 form a group, after the zipper head is sewn on a bag-like article, the two zipper heads 3 can slide under the action of the pull tongue 2 after the pull tongue 2 is rotated, when the cloth belt 1 is closed, the retaining rings 5 are aligned, and the zipper can be locked through the lock, so that the occurrence of theft is prevented.

When the lock is not used, the pull tab 2 is horizontally placed after the chain head 3 is moved to any position, the head of the lock claw 4 can downwards penetrate through the jack 10 on the chain head 3 under the elastic force of the inserting tail 401 and is inserted into a gap between the chain teeth 6 to limit the movement of the chain head 3, and the chain head 3 can be positioned at any position of the cloth belt 11 and cannot slide under the action of external force except the pull tab 2; when the pull tab 2 is rotated, the raised platform 202 of the pull tab 2 rotates to push the head of the locking claw 4 to move upwards, the sharp corner 402 is separated from the zipper teeth 6 under the elastic action of the insertion tail 401, and the lock head can freely move on the zipper teeth 6.

The locking claw 4 is inserted into the inserting port 9, due to the inclined arrangement, the locking claw is inserted after being unfolded and deformed, the locking claw is not easy to be separated under the action of elasticity after being inserted, the head of the locking claw 4 moves downwards under the action of the elasticity of the inserting tail 401 after the pull tab 2 is loosened, and the sharp corner 402 is continuously inserted into the gap of the zipper tooth 6.

The installation method of the invention is that the rod part of the pull tab 2 is firstly placed between the two clack plates of the base 7, then the locking claw 4 is inserted into the inserting port 9, the sharp corner 402 at the front end of the locking claw 4 passes through the inserting hole 10 to be inserted into the zipper tooth 6, and the upper ends of the two clack plates of the base 7 are closed, so that the rod part of the pull tab 2 is not easy to be separated.

In conclusion, the zipper head can be pulled only when the pull tongue is rotated, the anti-falling zipper has a self-locking function, a good anti-falling effect and an anti-theft function, and is suitable for the mailbag industry.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a braided bag anticreep formula auto-lock zip fastener which characterized in that: comprises that

The zipper is characterized in that the cloth belt (1) is woven by nylon, the zipper teeth (6) are sewed on the cloth belt (1), the two layers of the zipper teeth (6) are respectively positioned on the edges of the upper side surface and the lower side surface of the cloth belt (1),

the chain head (3) is triangular and divided into an upper layer and a lower layer, a snap ring (5) is arranged above the head of the chain head (3), the snap ring (5) is positioned on the left side or the right side of the center of the chain head (3), one side close to the center is thickened, a through hole is formed in the center of the snap ring (5), when the two chain heads (3) are close to each other, the snap ring (5) is symmetrical, and the chain head (3) can be locked and loosened through a lock penetrating through the snap ring (5); the upper surface of the chain head (3) is provided with a base (7) and two limit blocks (8), the base (7) and the limit blocks (8) are respectively arranged symmetrically along the central plane of the chain head (3), the base (7) is composed of two petal plates,

the locking claw (4) is wave-shaped and comprises an inserting tail (401) at the tail part and a sharp corner (402) at the head part, the head part and the tail part are converged inwards, the inserting tail (401) is inclined inwards, and the sharp corner (402) is vertically arranged; a through inserting port (9) is arranged on the chain head (3), an inclined plane matched with the inserting tail (401) is arranged on the inner side of the inserting port (9), and the inserting tail (401) is inserted into the inserting port (9); the chain head (3) is also provided with a through jack (10), the jack (10) is positioned between the bases (7), the sharp corner (402) can penetrate through the jack (10) to be inserted into and pulled out of the chain element (6), and when the sharp corner is inserted into a gap of the chain element (6), the movement of the chain head (3) is limited;

the pull tab (2) is provided with a gap hole in the front part of the pull tab (2), a rod part at the front end of the pull tab (2) is sleeved between two petal plates of the bases (7), a warping table (202) is arranged on the inner side of the rod part, the warping table (202) is positioned between the two bases (7) and is positioned on the inner side of the head part of the locking claw (4), and the warping table (202) is not in contact with the pull tab (2) when the pull tab (2) is horizontally placed; the pull tab (2) rotates, and the warping platform (202) can drive the head of the locking claw (4) to move upwards and drive the sharp corner (402) to be separated from the zipper teeth (6).

2. The woven bag anti-drop self-locking zipper according to claim 1, characterized in that: the upper surface of the chain head (3) is provided with a groove, the groove is connected with the interface (9) and the jack (10) and is positioned between the two limit blocks (8) and the base (7), the tail part of the locking claw (4) is embedded into the groove, and the head part of the locking claw (4) is limited by the groove.

3. The woven bag anti-drop self-locking zipper according to claim 2, wherein: the chain head (3) is made of metal and plated on the surface.

4. The woven bag anti-drop self-locking zipper according to claim 1 or 3, wherein: the chain head (3), the base (7) and the limiting block (8) are integrally processed.

5. The woven bag anti-drop self-locking zipper according to claim 1, characterized in that: the two petal plates of the base (7) are deformed by external force to lock the front end of the pull tongue (2) after being placed at the front end of the pull tongue (2).

6. The woven bag anti-drop self-locking zipper according to claim 1, characterized in that: the anti-skid protrusions (201) are arranged below the tail part of the pull tongue (2) far away from the base (7), and the anti-skid protrusions exceed the lower surface of the pull tongue (2) by no less than 1mm, so that the pull tongue (2) can be pulled conveniently.

Images