阅读说明：本技术 一种双向金属拉链 (Two-way metal zipper ) 是由 李冬娥 于倩 于 2021-08-13 设计创作，主要内容包括：本发明属于拉链技术领域,具体的说是一种双向金属拉链,包括上板、下板、拉片、分链块、拉鼻；所述上板上表面固连有拉鼻；所述拉鼻与上板形成的空间内滑动连接有拉片；所述上板下表面通过分链块固连下板；所述上板上表面开设有滑槽；所述滑槽横截面为L形；所述滑槽共有两个,以上板长度方向的中心线为中心对称设计；所述分链块上表面开设有凹槽；所述滑槽位于凹槽上方；所述凹槽底部固连有弹性金属块；所述弹性金属块共有两个,以凹槽宽度方向上的中轴线为中心对称设计；所述弹性金属块向上板侧壁方向倾斜设计；本发明结构简单可解决在使用金属拉链时,经常会将衣服的布料或线头卡进拉链头及链齿之间,使用者用力拉动拉耳而造成衣物损伤的问题。(The invention belongs to the technical field of zippers, and particularly relates to a bidirectional metal zipper, which comprises an upper plate, a lower plate, a pulling piece, a zipper dividing block and a pulling nose, wherein the upper plate is provided with a first groove; the upper surface of the upper plate is fixedly connected with a pull lug; a pulling piece is connected in a space formed by the pulling nose and the upper plate in a sliding manner; the lower surface of the upper plate is fixedly connected with the lower plate through a chain dividing block; the upper surface of the upper plate is provided with a sliding chute; the cross section of the sliding chute is L-shaped; the number of the sliding grooves is two, and the sliding grooves are symmetrically designed by taking the central line of the length direction of the upper plate as the center; the upper surface of the chain dividing block is provided with a groove; the sliding groove is positioned above the groove; the bottom of the groove is fixedly connected with an elastic metal block; the number of the elastic metal blocks is two, and the elastic metal blocks are symmetrically designed by taking a central axis in the width direction of the groove as a center; the elastic metal block is obliquely designed towards the upper plate side wall; the metal zipper has a simple structure, and can solve the problem that when a metal zipper is used, cloth or thread ends of clothes are often clamped between the zipper head and the zipper teeth, and a user forcibly pulls the pull lug to cause clothes damage.)

1. A bidirectional metal zipper is characterized in that: comprises an upper plate 1, a lower plate 2, a pulling piece 3, a chain splitting block 4 and a pulling nose 5; the upper surface of the upper plate 1 is fixedly connected with a pull lug 5; the pull nose 5 is concave; a pull piece 3 is connected in a space formed by the pull nose 5 and the upper plate 1 in a sliding way; the lower surface of the upper plate 1 is fixedly connected with the lower plate 2 through a chain dividing block 4; the upper surface of the upper plate 1 is provided with a chute 6; the cross section of the sliding chute 6 is L-shaped; the number of the sliding grooves 6 is two, and the sliding grooves are symmetrically designed by taking the central line of the upper plate 1 in the length direction as the center; the upper surface of the chain dividing block 4 is provided with a groove 7; the sliding groove 6 is positioned above the groove 7; the bottom of the groove 7 is fixedly connected with an elastic metal block 8; the number of the elastic metal blocks 8 is two, and the elastic metal blocks are designed symmetrically by taking a central axis in the width direction of the groove 7 as a center; the elastic metal block 8 is designed to be inclined towards the side wall of the upper plate 1; the upper part of the elastic metal block 8 is L-shaped.

2. The two-way metal zipper of claim 1, wherein: the opposite surfaces of the side walls of the two sides below the upper plate 1 are fixedly connected with elastic sheets 9; the elastic sheet 9 is positioned on the side wall of the upper plate 1 and is close to one end of the chain dividing block 4.

3. The two-way metal zipper of claim 2, wherein: the inner side surfaces of the elastic sheet 9 and the zipper head are coated with PTFE coatings.

4. The two-way metal zipper of claim 2, wherein: a spring plate 11 is fixedly connected between the spring plate 9 and the side wall of the upper plate 1.

5. The two-way metal zipper of claim 1, wherein: the bottom of the groove 7 is fixedly connected with a magnet 12; the upper surface of the magnet 12 is parallel to the upper surface of the chain dividing block 4; the lower part of the elastic metal block 8 is fixedly connected with the magnet 12 and is close to the surface of one side of the side wall of the upper plate 1.

6. The two-way metal zipper of claim 5, wherein: the magnet 12 is provided with a through hole 13 on the surface of one side close to the side wall of the upper plate 1; a spring 14 is fixedly connected in the through hole 13; the other end of the spring 14 is fixedly connected with the elastic metal block 8 on the surface of one side far away from the side wall of the upper plate 1.

Technical Field

The invention belongs to the technical field of zippers, and particularly relates to a bidirectional metal zipper.

Background

The zipper is a fastener consisting of two belts each provided with a row of metal teeth or plastic teeth for connecting the edge of the opening, and a slider capable of pulling the two rows of teeth into an interlocking position to close the opening for sewing on clothes, pockets or bags.

At present, when people use the metal zipper, the cloth or the thread end of clothes is often clamped between the zipper head and the zipper teeth, the zipper pull is usually pulled forcefully to solve the problem, and at the moment, the pull-down zipper body and the clothes thereof can be damaged even, so that inconvenience is brought to daily life of people.

The prior art also has some technical schemes of bidirectional metal zippers which are easy to detach and are prevented from being blocked, for example, a Chinese patent with the application number of CN201810446606.6 discloses a zipper which is prevented from being blocked and comprises a zipper upper locking plate, an arch hook, a pulling piece, a split-chain tooth block and a zipper lower locking plate; although the zipper can prevent the zipper from being locked, the zipper is complex in structure, difficult to put into production and manufacture, high in production cost and not beneficial to practical use.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that cloth or thread ends of clothes are often clamped between a zipper head and zipper teeth when people use a metal zipper at present, the zipper ears are usually required to be pulled forcefully to solve the problem, and at the moment, the pull-down zipper body and clothes thereof can be damaged even possibly, so that inconvenience is brought to daily life of people.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a bidirectional metal zipper, which comprises an upper plate, a lower plate, a pulling piece, a zipper dividing block and a pulling nose, wherein the upper plate is provided with a first zipper body; the upper surface of the upper plate is fixedly connected with a pull lug; the pull nose is concave; a pulling piece is connected in a space formed by the pulling nose and the upper plate in a sliding manner; the lower surface of the upper plate is fixedly connected with the lower plate through a chain dividing block; the upper surface of the upper plate is provided with a sliding chute; the cross section of the sliding chute is L-shaped; the number of the sliding grooves is two, and the sliding grooves are symmetrically designed by taking the central line of the length direction of the upper plate as the center; the upper surface of the chain dividing block is provided with a groove; the sliding groove is positioned above the groove; the bottom of the groove is fixedly connected with an elastic metal block; the number of the elastic metal blocks is two, and the elastic metal blocks are symmetrically designed by taking a central axis in the width direction of the groove as a center; the elastic metal block is obliquely designed towards the upper plate side wall; the upper part of the elastic metal block is L-shaped;

when the device works, in an initial state, the lower surface of the upper part of the elastic metal block in the horizontal direction is contacted with the upper surface of the upper plate, and the surface of the upper part of the elastic metal block on one side close to the side wall of the upper plate in the vertical direction is contacted with the sliding chute on one side close to the side wall of the upper plate;

when a user pulls the zipper to clamp clothes or the zipper head is difficult to pull the zipper, the part of the elastic metal block above the extending chute is pinched by hands close to the central axis direction of the groove, when the surface of one side of the elastic metal block far away from the side wall of the upper plate contacts the surface of one side of the chute far away from the side wall of the upper plate, the pull piece is pulled upwards at the moment, so that the upper plate moves upwards, when the lower surface of the elastic metal block in the horizontal direction is lower than the upper surface of the upper plate, the hands are loosened at the moment, then the pull piece is pulled upwards until the elastic metal block completely slides out of the chute and is separated from the upper plate, and at the moment, the upper plate is separated from the lower plate, so that the problem that the cloth or the zipper head of clothes is clamped between the zipper head and the zipper teeth can be solved, the cloth or the zipper head of the clothes is prevented from being clamped between the zipper head and the zipper teeth, the user pulls the pull piece with force to cause the damage to the clothes and the zipper head, and the zipper head is simple in structure and easy to operate; when the zipper head needs to be installed again, the elastic metal block is pinched to the side surface close to the side wall of the upper plate in the direction close to the central axis of the groove by hands, so that the two elastic metal blocks move oppositely, the upper end of the elastic metal block is correspondingly placed into the chute, then the hands are loosened, the upper plate is pressed downwards, when the lower surface of the elastic metal block in the horizontal direction is parallel to the upper surface of the upper plate, the elastic metal block has certain elasticity, the side wall of the elastic metal block in the vertical direction is not contacted with the side surface close to the side wall of the upper plate, the elastic metal block is relieved from being limited by force to move in the direction close to the side wall of the upper plate in the chute, when the surface of the elastic metal block in the side wall close to the upper plate is contacted with the side surface close to the upper plate, the elastic metal block stops moving, the lower surface of the elastic metal block in the horizontal direction is contacted with the upper surface of the upper plate, and then the upper plate and the lower plate are connected, then, the zipper can be pulled again; the zipper puller is simple in structure and easy to operate, the upper plate and the lower plate of the zipper puller can be separated only by breaking the elastic metal blocks symmetrically designed by the central axis in the width direction of the groove in the central axis direction in the width direction of the groove, so that the problem of clamping between the zipper puller and clothes is solved, financial loss caused by strong pulling is avoided, meanwhile, after the disassembly is completed, the connection between the upper plate and the lower plate of the zipper puller can be realized only by pressing the elastic metal blocks, and the elastic metal blocks have strong elasticity, so that the firmness between the upper plate and the lower plate is ensured, and the condition that the upper plate and the lower plate are loosened after the zipper puller is pulled for a long time is avoided; in addition, the upper plate and the lower plate are detachably connected through the elastic metal block, so that the processing and production of the invention can be carried out by different factories, and the production benefit of the invention is improved.

Preferably, the opposite surfaces of the side walls of the two sides below the upper plate are fixedly connected with elastic pieces; the elastic sheet is positioned on the side wall of the upper plate and close to one end of the chain splitting block;

when the zipper puller works, when the zipper puller is pulled to close two sides of clothes, the zipper teeth on two sides of the zipper strip are turned outwards, the two sides of the clothes are closed along with the zipper puller, the surface of one side, close to the zipper splitting block, of the elastic sheet is in contact with the zipper teeth on one side, close to the upper plate, so that the zipper teeth on the zipper strip, which are turned outwards, are in contact with the elastic sheet firstly, the elastic sheet has an acting force towards the zipper splitting block, so that the zipper teeth turned outwards are positioned in the horizontal direction to enter between the upper plate and the lower plate, the metal zipper heads on two sides are mutually meshed along with the pulling of the zipper puller, the zipper strip is smoothly closed, and due to the elasticity of the elastic sheet, when a dead block occurs in the working process of the zipper puller, the elastic sheet can deform, so that the zipper teeth can conveniently pass through, the zipper teeth are directly clamped between the upper plate and the upper plate, and the situation that one end, close to the zipper block, of the upper plate, is not directly contacted with the zipper teeth turned outwards, and the zipper head cannot smoothly close the zipper strips, so that the smoothness degree of the zipper pulled by a user is realized, and the using effect and the using comfort degree of the user are improved.

Preferably, the inner side surfaces of the elastic sheet and the zipper head are coated with PTFE coatings;

during operation, the surface of the elastic sheet is coated with the PTFE coating, the PTFE coating can self-lubricate when reducing the friction coefficient between the surface of the elastic sheet and the zipper teeth and increasing the abrasion resistance of the elastic sheet, so that the elastic sheet and the zipper teeth are contacted more silkily, and the zipper teeth turned to the outside can more smoothly enter the space between the upper plate and the lower plate, thereby improving the satisfaction degree of a user when pulling the zipper and improving the product benefit of the zipper head.

Preferably, a spring plate is fixedly connected between the spring plate and the side wall of the upper plate;

when the zipper puller works, when the elastic sheet is contacted with the zipper teeth, the zipper teeth which are turned to the outside have a force towards the direction of the side wall of the upper plate to the elastic sheet, and the reed fixedly connected between the elastic sheet and the side wall of the upper plate has certain elasticity, so that the elastic sheet is always contacted with the zipper teeth on the zipper tape on the side surface close to one side of the zipper splitting block, and the situation that the elastic sheet cannot restore to the original state in time due to overlarge acting force of the zipper teeth on the elastic sheet caused by the fact that a user pulls the zipper puller at an overhigh speed is effectively avoided, the zipper teeth cannot be controlled to enter between the upper plate and the lower plate in time, and the zipper puller is hindered by the zipper teeth on the zipper tape when being pulled, so that the using effect of the user and the product benefit of the zipper puller are reduced.

Preferably, the bottom of the groove is fixedly connected with a magnet; the upper surface of the magnet is parallel to the upper surface of the chain splitting block; the lower part of the elastic metal block is fixedly connected with the magnet and is close to one side surface of the side wall of the upper plate;

when the locking device works, after the locking of the upper plate and the lower plate is accidentally released by the elastic metal block, the magnet still has certain adsorption force on the upper plate and keeps the upper plate and the lower plate relatively fixed, so that the problem of part loss after the upper plate and the lower plate are separated is effectively solved, the user experience and the practicability of the locking device are improved, and the product benefit of the locking device is further improved; and even if one upper plate or one lower plate is lost, the zipper head can be assembled again through matched parts, so that the product guarantee capability and the user experience are improved.

Preferably, the magnet is provided with a through hole on one side surface close to the side wall of the upper plate; a spring is fixedly connected in the through hole; the other end of the spring is fixedly connected with an elastic metal block on the surface of one side of the side wall far away from the upper plate;

when the zipper head works, when the elastic metal block is used for connecting and clamping the upper plate and the lower plate, the spring is in a compression state, and always has a force towards the direction of the side wall of the upper plate to the elastic metal block, so that the side surface of the elastic metal block close to the side wall of the upper plate is always in contact with the sliding groove and the side surface close to the side wall of the upper plate, and the elastic metal block is prevented from moving towards the direction close to the central axis of the groove when a user pulls the zipper head hard, and further the elastic metal block is prevented from sliding out of the sliding groove and cannot be tightly connected with the upper plate and the lower plate.

The invention has the following beneficial effects:

1. according to the bidirectional metal zipper, the upper plate and the lower plate can be separated by arranging the elastic metal block and the sliding groove, so that the problem that cloth or a thread end of clothes is clamped between the zipper head and the zipper teeth is solved, the cloth or the thread end of the clothes is prevented from being clamped between the zipper head and the zipper teeth, a user forcibly pulls the zipper pull to cause damage to clothes and the zipper, and the bidirectional metal zipper is simple in structure and easy to operate.

2. According to the bidirectional metal zipper, the zipper teeth which are turned over to the outside on the zipper belt can enter the space between the upper plate and the lower plate in the horizontal direction through the arrangement of the elastic sheets and the spring leaves, and the problem that the zipper head cannot smoothly close the zipper belt due to the fact that one end of the side wall of the upper plate, close to the zipper splitting block, directly contacts the zipper teeth which are turned over to the outside on two sides of the zipper belt is effectively avoided, so that the smoothness degree when a user pulls the zipper is achieved, and the using effect and the using comfort degree of the user are improved.

3. According to the bidirectional metal zipper, the magnet is arranged, so that after the upper plate is separated from the lower plate, the magnet still has certain adsorption force on the upper plate, the problem that the lower plate is lost after the upper plate is separated from the lower plate is effectively solved, the user experience and the practicability of the bidirectional metal zipper are improved, and the product benefit of the bidirectional metal zipper is further improved; and even if one upper plate or one lower plate is lost, the zipper head can be assembled again through matched parts, so that the product guarantee capability and the user experience are improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the structure of the magnet-bonded elastic metal block of the present invention;

in the figure: the zipper comprises an upper plate 1, a lower plate 2, a pulling piece 3, a chain splitting block 4, a pulling nose 5, a sliding groove 6, a groove 7, an elastic metal block 8, an elastic sheet 9, a reed 11, a magnet 12, a through hole 13 and a spring 14.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 3, the bidirectional metal zipper of the present invention comprises an upper plate 1, a lower plate 2, a pulling piece 3, a zipper dividing block 4 and a pulling nose 5; the upper surface of the upper plate 1 is fixedly connected with a pull lug 5; the pull nose 5 is concave; a pull piece 3 is connected in a space formed by the pull nose 5 and the upper plate 1 in a sliding way; the lower surface of the upper plate 1 is fixedly connected with the lower plate 2 through a chain dividing block 4; the upper surface of the upper plate 1 is provided with a chute 6; the cross section of the sliding chute 6 is L-shaped; the number of the sliding grooves 6 is two, and the sliding grooves are symmetrically designed by taking the central line of the upper plate 1 in the length direction as the center; the upper surface of the chain dividing block 4 is provided with a groove 7; the sliding groove 6 is positioned above the groove 7; the bottom of the groove 7 is fixedly connected with an elastic metal block 8; the number of the elastic metal blocks 8 is two, and the elastic metal blocks are designed symmetrically by taking a central axis in the width direction of the groove 7 as a center; the elastic metal block 8 is designed to be inclined towards the side wall of the upper plate 1; the upper part of the elastic metal block 8 is L-shaped;

when the device works, in an initial state, the lower surface of the upper part of the elastic metal block 8 in the horizontal direction contacts the upper surface of the upper plate 1, and the surface of one side, close to the side wall of the upper plate 1, of the upper part of the elastic metal block 8 in the vertical direction contacts the sliding chute 6 and is close to the surface of one side of the side wall of the upper plate 1;

when a user pulls the zipper to clamp clothes or a thread end is difficult to pull the zipper, the user pinches a part of the elastic metal block 8 extending out of the upper part of the sliding groove 6 by hands to the direction close to the central axis of the groove 7, when the surface of one side of the elastic metal block 8 far away from the side wall of the upper plate 1 contacts the surface of one side of the sliding groove 6 far away from the side wall of the upper plate 1, the pull piece 3 is pulled upwards to enable the upper plate 1 to move upwards, when the lower surface of the elastic metal block 8 in the horizontal direction is lower than the upper surface of the upper plate 1, the hands are loosened, then the pull piece 3 is pulled upwards until the elastic metal block 8 completely slides out of the sliding groove 6 and is separated from the upper plate 1, and at the moment, the upper plate 1 is separated from the lower plate 2, so that the problem that the cloth or the thread end of the clothes is clamped between the zipper end and the zipper end is prevented from being damaged by the user pulling the pull piece 3 forcefully between the cloth or the zipper end of the clothes and the zipper end, the invention has simple structure and easy operation; when the zipper head needs to be installed again, the elastic metal block 8 is pinched to the surface close to one side of the side wall of the upper plate 1 by hands to be close to the central axis direction of the groove 7, so that the two elastic metal blocks 8 move oppositely, at the moment, the upper end of the elastic metal block 8 is correspondingly placed into the chute 6, then the hands are loosened, the upper plate 1 is pressed downwards, when the lower surface of the elastic metal block 8 in the horizontal direction is parallel to the upper surface of the upper plate 1, at the moment, because the elastic metal block 8 has certain elasticity, and the side wall of the elastic metal block 8 in the vertical direction is not contacted with the chute 6 and is close to one side surface of the side wall of the upper plate 1, at the moment, the elastic metal block 8 is relieved from being limited by stress and moves towards the direction close to the side wall of the upper plate 1 in the chute 6, when the surface of the elastic metal block 8 in the side wall of the upper plate 1 is contacted with the surface close to the side surface of the upper plate 1, at the moment, the elastic metal block 8 stops moving, and the lower surface in the horizontal direction is contacted with the upper surface of the upper plate 1, at the moment, the connection of the upper plate 1 and the lower plate 2 is completed, and then the zipper can be pulled again; the zipper puller is simple in structure and easy to operate, the upper plate 1 and the lower plate 2 of the zipper puller can be separated only by breaking the elastic metal blocks 8 symmetrically designed on the central axis in the width direction of the groove 7 towards the central axis direction in the width direction of the groove 7, so that the problem of clamping between the zipper puller and clothes is solved, financial loss caused by strong pulling is avoided, meanwhile, after the disassembly is completed, the connection between the zipper puller upper plate 1 and the lower plate 2 can be realized only by pressing the elastic metal blocks 8, and the elastic metal blocks 8 have strong elasticity, so that the firmness between the upper plate 1 and the lower plate 2 is ensured, and the condition that the upper plate 1 and the lower plate 2 are loosened after the zipper puller is pulled for a long time is avoided; in addition, the upper plate 1 and the lower plate 2 are detachably connected through the elastic metal block 8, so that the processing and production of the invention can be carried out by different factories, and the production benefit of the invention is improved.

As an embodiment of the invention, the opposite surfaces of the side walls of the two sides below the upper plate 1 are fixedly connected with elastic sheets 9; the elastic sheet 9 is positioned on the side wall of the upper plate 1 and close to one end of the chain dividing block 4;

when the zipper puller works, when the zipper puller is pulled to close two sides of clothes, the zipper teeth on two sides of the zipper strip are turned outwards, the two sides of the clothes are closed along with the zipper puller, the surface of one side, close to the zipper splitting block 4, of the elastic sheet 9 is in contact with the zipper teeth on one side, close to the upper plate 1, so that the zipper teeth on the zipper strip which are turned outwards are firstly in contact with the elastic sheet 9, the elastic sheet 9 has an acting force towards the zipper splitting block 4 to the zipper teeth which are turned outwards, the zipper teeth which are turned outwards are positioned in the horizontal direction and enter between the upper plate 1 and the lower plate 2, and the metal zipper heads on two sides are mutually meshed along with the pulling of the zipper puller, so that the zipper strip is smoothly closed, and because the elastic sheet 9 has elasticity, when the zipper puller is blocked, the elastic sheet 9 can deform, so that the zipper teeth can pass through and cannot be directly blocked, and the zipper teeth which are turned outwards because the side wall of the upper plate 1 directly contacts the zipper teeth on two sides of the zipper strip close to one end, close to the zipper splitting block 4, and the zipper head cannot smoothly close the zipper strips, so that the smoothness degree of the zipper pulled by a user is realized, and the using effect and the using comfort degree of the user are improved.

As an embodiment of the invention, the inner side surfaces of the spring plate 9 and the zipper head are coated with PTFE coatings;

during operation, the surface of the elastic sheet 9 is coated with a PTFE coating, the PTFE coating can also self-lubricate when reducing the friction coefficient between the surface of the elastic sheet 9 and the zipper teeth and increasing the wear resistance of the elastic sheet 9, so that the elastic sheet 9 and the zipper teeth are contacted more smoothly, and the zipper teeth which are turned to the outside can more smoothly enter the space between the upper plate 1 and the lower plate 2, thereby improving the satisfaction degree of a user when pulling the zipper and improving the product benefit of the zipper head.

As an embodiment of the invention, a spring plate 11 is fixedly connected between the spring plate 9 and the side wall of the upper plate 1;

when the zipper puller works, when the elastic sheet 9 is contacted with the zipper teeth, the zipper teeth which are turned to the outside have a force towards the side wall of the upper plate 1 to the elastic sheet 9, and the reed 11 fixedly connected between the elastic sheet 9 and the side wall of the upper plate 1 has certain elasticity, so that the elastic sheet 9 is always contacted with the zipper teeth on the zipper tape on the surface close to one side of the zipper dividing block 4, and therefore the situation that the elastic sheet 9 cannot restore to the original state in time due to overlarge acting force of the zipper teeth on the elastic sheet 9 when a user pulls the zipper puller at an overhigh speed is effectively avoided, the zipper teeth cannot be controlled to enter between the upper plate 1 and the lower plate 2 in time, and the zipper puller is hindered by the zipper teeth on the zipper tape when pulled, and therefore, the using effect of the user and the product benefit of the zipper puller are reduced.

As an embodiment of the invention, the bottom of the groove 7 is fixedly connected with a magnet 12; the upper surface of the magnet 12 is parallel to the upper surface of the chain dividing block 4; the lower part of the elastic metal block 8 is fixedly connected with the magnet 12 and is close to the surface of one side wall of the upper plate 1;

when the locking device works, after the elastic metal block 8 accidentally unlocks the upper plate 1 and the lower plate 2, the magnet 12 still has a certain adsorption force on the upper plate 1 and keeps the upper plate 1 and the lower plate 2 relatively fixed, so that the problem of part loss after the upper plate 1 and the lower plate 2 are separated is effectively solved, the user experience and the practicability of the locking device are improved, and the product benefit of the locking device is further improved; and even if one upper plate 1 or one lower plate 2 is lost, the zipper head can be assembled again through matched parts, so that the product guarantee capability and the user experience are improved.

As an embodiment of the present invention, the magnet 12 has a through hole 13 formed on a surface thereof near a side wall of the upper plate 1; a spring 14 is fixedly connected in the through hole 13; the other end of the spring 14 is fixedly connected with the elastic metal block 8 on the surface of one side far away from the side wall of the upper plate 1;

the during operation, when elastic metal piece 8 was connected upper plate 1 and hypoplastron 2 and is blocked, spring 14 was in compression state, all the time there was a power to 1 lateral wall direction of upper plate to elastic metal piece 8, make elastic metal piece 8 be close to 1 lateral wall of upper plate side surface contact spout 6 all the time in being close to 1 lateral wall of upper plate side surface, thereby avoid when the user draws the zipper head with the pulling hard, elastic metal piece 8 is to being close to 7 axis direction movements of recess, and then avoid 8 roll-off spouts 6 of elastic metal piece and can not be with upper plate 1 and hypoplastron 2 zonulae occludens.

The specific implementation flow is as follows:

in an initial state, the lower surface of the upper part of the elastic metal block 8 in the horizontal direction contacts the upper surface of the upper plate 1, and the surface of the upper part of the elastic metal block 8 in the vertical direction, which is close to one side wall of the upper plate 1, contacts the chute 6, which is close to one side wall of the upper plate 1;

when a user pulls the zipper to clamp clothes or the zipper head is difficult to pull, the user pinches a part of the elastic metal block 8 extending out of the upper part of the sliding groove 6 by hands to the direction close to the central axis of the groove 7, when the surface of one side of the elastic metal block 8 far away from the side wall of the upper plate 1 contacts the surface of one side of the sliding groove 6 far away from the side wall of the upper plate 1, the pull piece 3 is pulled upwards at the moment to enable the upper plate 1 to move upwards, when the lower surface of the elastic metal block 8 in the horizontal direction is lower than the upper surface of the upper plate 1, the hands are loosened at the moment, then the pull piece 3 is pulled upwards until the elastic metal block 8 completely slides out of the sliding groove 6 to be separated from the upper plate 1, and at the moment, the upper plate 1 is separated from the lower plate 2, so that the problem that the cloth or the zipper head of clothes is clamped between the zipper head and the zipper teeth can be solved; when the zipper head needs to be installed again, the elastic metal block 8 is pinched to the surface close to one side of the side wall of the upper plate 1 by hands to be close to the central axis direction of the groove 7, so that the two elastic metal blocks 8 move oppositely, at the moment, the upper end of the elastic metal block 8 is correspondingly placed into the chute 6, then the hands are loosened, the upper plate 1 is pressed downwards, when the lower surface of the elastic metal block 8 in the horizontal direction is parallel to the upper surface of the upper plate 1, at the moment, because the elastic metal block 8 has certain elasticity, and the side wall of the elastic metal block 8 in the vertical direction is not contacted with the chute 6 and is close to one side surface of the side wall of the upper plate 1, at the moment, the elastic metal block 8 is relieved from being limited by stress and moves towards the direction close to the side wall of the upper plate 1 in the chute 6, when the surface of the elastic metal block 8 in the side wall of the upper plate 1 is contacted with the surface close to the side surface of the upper plate 1, at the moment, the elastic metal block 8 stops moving, and the lower surface in the horizontal direction is contacted with the upper surface of the upper plate 1, at the moment, the connection of the upper plate 1 and the lower plate 2 is completed, and then the zipper can be pulled again; when the elastic metal block 8 accidentally releases the locking of the upper plate 1 and the lower plate 2, the magnet 12 still has certain adsorption force on the upper plate 1, and keeps the upper plate 1 and the lower plate 2 relatively fixed; when the elastic metal block 8 connects and clamps the upper plate 1 and the lower plate 2, the spring 14 is in a compressed state and always applies a force to the elastic metal block 8 in the direction of the side wall of the upper plate 1, so that the surface of the elastic metal block 8 close to one side of the side wall of the upper plate 1 is always in contact with the surface of the chute 6 close to one side of the side wall of the upper plate 1;

when the zipper puller 3 pulls the zipper puller to close the two sides of the clothes, the zipper teeth on the two sides of the zipper strip are turned outwards, the two sides of the clothes are closed along with the zipper puller at the moment, the surface of one side, close to the zipper splitting block 4, of the elastic sheet 9 contacts the zipper teeth on one side, close to the upper plate 1, so that the zipper teeth on the zipper strip turned outwards contact the elastic sheet 9 firstly, the elastic sheet 9 has an acting force towards the zipper splitting block 4 to the zipper teeth turned outwards, the zipper teeth turned outwards enter the space between the upper plate 1 and the lower plate 2 in the horizontal direction, the metal zipper heads on the two sides are mutually meshed along with the pulling of the zipper puller, the zipper strip is smoothly closed, and the elastic sheet 9 has elasticity, when the zipper puller is blocked in the working process, the elastic sheet 9 can deform, so that the zipper teeth can pass through conveniently and the zipper teeth cannot be directly blocked; and when the elastic sheet 9 is contacted with the zipper teeth, the zipper teeth which are turned outwards have a force towards the side wall of the upper plate 1 to the elastic sheet 9, and the elastic sheet 9 is always contacted with the zipper teeth on the zipper tape on the surface of one side close to the zipper splitting block 4 because the reed 11 fixedly connected between the elastic sheet 9 and the side wall of the upper plate 1 has certain elasticity.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.