CN220937019U - Slide chain - Google Patents

Abstract

The utility model provides a slide chain, which relates to the technical field of clothing accessories, wherein a sub-piece is assembled on a parent piece in a sliding way and is blocked and limited by an opening-closing fastener, a first contact surface of a first fastener is contacted with a second contact surface of a second fastener in a matching way, and a fastening convex part and a fastening concave part are mutually fastened and matched when the slide chain is closed, so that the second fastener of the first fastener is relatively fixed; when a first missing surface is arranged at the edge of the first contact surface, a first supporting part is formed at the junction of the first contact surface and the first missing surface; a second missing surface is arranged at the edge of the second contact surface, and a second supporting part is formed at the junction of the second contact surface and the second missing surface; when needs are opened or closed, first supporting part and second supporting part contact each other and form the fulcrum, and first fastener and second fastener use this fulcrum to rotate as the pivot to make buckle convex part and buckle concave part open each other or separate, realize opening and shutting through rotating rather than flat drawing, accomplish the switching more easily, promote the convenience that the slide fastener opened and shut.

Description

Slide chain

Technical Field

The utility model relates to the technical field of clothing accessories, in particular to a slide chain.

Background

The slide chain comprises a master part and a sub part, wherein the master part and the sub part are respectively fixed on the two parts, and the sub part can slide relative to the master part, so that the two parts can generate relative displacement. The slide chain can be applied to products such as outdoor jackets, down jackets, raincoats and the like, and the slide chain can be also applied to: the corresponding money cards of the goods on the supermarket shelves (the money of the goods can be slid and displayed through the slide chains), the positions of the seals of the clothes pockets and the like. When the slide chain is applied to the hat, the hat can move relative to the clothes along with the left and right rotation of the head, thereby avoiding shielding the sight and reducing the constraint on the head movement.

The both ends of female spare are provided with the fastener, form the stopper through the fastener to the sub-spare, prevent that the sub-spare from shifting out the female spare. Elastic clamping connection can be realized between two fasteners matched with each other in the prior art, and the deformation of the fasteners mainly depends on the elastic deformation of the material. When the two fasteners are separated to take out the sub-parts, the two fasteners are required to be pulled in opposite directions, so that the fasteners are elastically deformed to complete separation. The fastener is inconvenient to detach, separate and assemble, and the use experience is influenced.

It is a technical problem that needs to be solved at present for a person skilled in the art how to improve the convenience of opening and closing the slide fastener.

Disclosure of utility model

The utility model provides a slide chain, which is characterized in that a first fastener and a second fastener are opened or closed in a relative rotation mode, so that the force required during opening and closing is reduced, and the convenience of opening and closing the slide chain fastener can be improved, and the specific scheme is as follows:

A slide chain comprises a parent component, a child component and an opening and closing fastener arranged on the parent component; the sub-piece is assembled on the parent piece in a sliding way, and the opening and closing fastener blocks and limits the position of at least one end;

The opening and closing fastener comprises a first fastener and a second fastener; a first contact surface of the first fastener for contacting the second fastener is provided with a buckling convex part, and a second contact surface of the second fastener for contacting the first fastener is provided with a buckling concave part; the clamping convex part and the clamping concave part can be mutually matched and clamped so as to close the first fastener and the second fastener;

a first missing surface is arranged at the edge of the first contact surface, and a first supporting part is formed at the junction of the first contact surface and the first missing surface;

A second missing surface is arranged at the edge of the second contact surface; a second supporting part is formed at the junction of the second contact surface and the second missing surface;

The first fastener and the second fastener can rotate with the first support portion and the second support portion as fulcrums, so that the fastening convex portion and the fastening concave portion are mutually opened or separated.

Optionally, the first fastener is provided with a first arc-shaped notch, and the second fastener is provided with a second arc-shaped notch; when the first contact surface and the second contact surface are in contact with each other, the first arc-lacking part and the second arc-lacking part are spliced to form an arc-lacking space for accommodating the tooth ball arranged by the sub-piece.

Optionally, the female part is provided with a fixing fastener, the fixing fastener is provided with a hollow part, and the hollow part is used for accommodating the child tooth ball arranged on the child part;

the fixing fastener and the opening and closing fastener are used for limiting two ends of the sub-piece respectively.

Optionally, the buckling convex part comprises two splayed cantilevers, and the distance between the two cantilevers gradually increases towards the distal end;

The clamping concave part is a groove with small mouth and large bottom.

Optionally, the fastening convex portion is disposed on an outward side in the thickness direction of the first fastener, and the first missing surface is disposed on an inward side in the thickness direction of the first fastener; the thickness of the buckle convex part is less than or equal to two thirds of the thickness of the first fastener;

The clamping concave part is arranged at the outward side of the thickness direction of the second fastener, and the second missing surface is arranged at the inward side of the thickness direction of the second fastener; the thickness of the buckle concave part is less than or equal to two thirds of the thickness of the second fastener.

Optionally, the outer surface of the first fastener and the outer surface of the second fastener are smooth abutting surfaces; the outward surface of the thickness direction of the opening and closing fastener is an arc surface or a corner folding surface; the inward surface of the opening and closing fastener in the thickness direction is a plane.

Optionally, a first button recess for the button is provided on the first button, and a second button recess for the button is provided on the second button.

Optionally, the sub-piece comprises a sub-tooth ball, a sub-band rib and a sub-band rib, wherein the sub-band rib connects a plurality of sub-tooth balls in series into a string, and the sub-band rib is fixed on the sub-tooth ball and the sub-band rib;

And two ends of the child cloth belt are provided with avoiding gaps.

Optionally, the female part comprises female teeth, female band ribs and female cloth bands, and the female teeth, the opening and closing fasteners and the fixing fasteners are respectively arranged on the female cloth bands;

the female tooth comprises a tooth base part and a tooth hook part, wherein the tooth hook part is fixed on the tooth base part and forms a cloth gap for the penetration of the child cloth belt and a sliding inner cavity for the sliding of the child tooth ball with the tooth base part;

The outer side edge of the tooth hook part is provided with a tooth chamfer;

The bottom of tooth basal portion sets up the base concave part, the base concave part sets up the mouth of a river that is used for moulding plastics.

Optionally, the distance between the female teeth is 2.0-5.0mm, the width of the front face and the back face of each female tooth is 2.0-4.0mm, the outer diameter of the child tooth ball is 2.0-4.5mm, the diameter of the inner circle of the tooth cavity of the sliding inner cavity is 2.5-5.0mm, and the distance between the seam-distributing notches is 0.8-2.0mm;

the sub-tooth ball adopts a chamfer arc design, and is provided with two sharp middle drums;

and rubberizing is arranged at two ends of the sub-cloth belt to improve strength.

The utility model provides a slide chain, a sub-piece is assembled on a main piece in a sliding way and is blocked and limited by an opening and closing fastener, a first contact surface of a first fastener is contacted with a second contact surface of a second fastener in a matching way, and a fastening convex part and a fastening concave part are mutually fastened and matched when the slide chain is closed, so that the second fastener of the first fastener is relatively fixed; when a first missing surface is arranged at the edge of the first contact surface, a first supporting part is formed at the junction of the first contact surface and the first missing surface; a second missing surface is arranged at the edge of the second contact surface, and a second supporting part is formed at the junction of the second contact surface and the second missing surface; when needs are opened or closed, first supporting part and second supporting part contact each other and form the fulcrum, and first fastener and second fastener use this fulcrum to rotate as the pivot to make buckle convex part and buckle concave part open each other or separate, realize opening and shutting through rotating rather than flat drawing, accomplish the switching more easily, promote the convenience that the slide fastener opened and shut.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric view of one embodiment of a slide chain provided by the present utility model in a closed position;

FIG. 2 is a front view of one embodiment of a slide chain provided in the present utility model in a closed position;

FIG. 3 is an isometric view of one embodiment of a slide chain provided in the present utility model in an open position;

FIG. 4 is an isometric view of an embodiment of an opening and closing fastener in an upright position;

FIG. 5 is a front view of an embodiment of an opening and closing fastener in a normal position;

FIG. 6 is an isometric view of an inverted state of one embodiment of an opening and closing fastener;

FIG. 7 is an upside down elevation view of one embodiment of an opening and closing fastener;

FIG. 8 is a schematic view of the opening process of the clasp;

FIG. 9 is a front view of one embodiment of a sub-assembly;

FIG. 10 is a schematic view of a hollow portion of a button ball insert fastener at one end of a button;

FIG. 11 is a schematic view of the space of the arc segment of the snap fastener with the ball of the tooth embedded in one end of the sub-assembly;

FIG. 12 is an isometric view of an embodiment of a female tooth;

FIG. 13 is a front view of one embodiment of a female tooth;

FIG. 14 is a side view of one embodiment of a female tooth;

FIG. 15 is an isometric view of one embodiment of a securing fastener;

FIG. 16 is a front view of one embodiment of a securing fastener;

fig. 17 is a top view of one embodiment of a securing fastener.

The drawings include:

Female component 1, female tooth 11, tooth base 111, base recess 1111, tooth hook 112, tooth chamfer 1121, slit gap 113, sliding cavity 114, female band rib 12, female band 13;

the sub-piece 2, the sub-tooth ball 21, the sub-band rib 22, the sub-cloth band 23 and the avoidance gap 231;

The opening and closing fastener 3, the first fastener 31, the fastening convex portion 311, the first contact surface 312, the first missing surface 313, the first supporting portion 314, the first arc missing portion 315, the first hand fastening recess 316, the second fastener 32, the fastening concave portion 321, the second contact surface 322, the second missing surface 323, the second supporting portion 324, the second arc missing portion 325, and the second hand fastening recess 326;

a fixing fastener 4 and a hollow 41.

Detailed Description

The key of the utility model is to provide a slide chain, wherein the first fastener and the second fastener are opened or closed in a relative rotation mode, so that the force required during opening and closing is reduced, and the convenience of opening and closing the slide chain fastener can be improved.

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the following detailed description of the present utility model will be presented with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, 2 and 3, the present utility model provides a slide chain including a main member 1 and a sub member 2, wherein the sub member 2 is slidable relative to the main member 1, so that a member to which the sub member 2 is connected moves relative to a member to which the main member 1 is connected, for example, a coat-hat moves relative to a garment.

The slide chain provided by the utility model further comprises an opening and closing fastener 3 arranged on the parent component 1, wherein the opening and closing fastener 3 is arranged on the parent component 1 and is integrated with the parent component 1. The sub-piece 2 is slidably assembled on the main piece 1 and can move relative to the main piece 1, the sub-piece 2 is blocked by the opening and closing fastener 3 to limit the position of at least one end, namely, the opening and closing fastener 3 can limit the limit position of one direction of the sub-piece 2, and at the moment, one opening and closing fastener 3 is arranged; the limit positions of the sub-parts 2 in two directions can be limited, and two opening and closing fasteners 3 are arranged at the moment.

As shown in fig. 4, 5, 6 and 7, the openable fastener 3 provided by the utility model includes a first fastener 31 and a second fastener 32, where the first fastener 31 and the second fastener 32 are respectively installed on two different female cloth belts 13, and the first fastener 31 and the second fastener 32 can be fixed and fastened together to form an integral body, and can also be separated from each other to realize detachment.

When the first fastener 31 and the second fastener 32 are engaged with each other, the surface of the first fastener 31 contacting the second fastener 32 is a first contact surface 312, and the surface of the second fastener 32 contacting the first fastener 31 is a second contact surface 322; the first contact surface 312 and the second contact surface 322 may be planar or curved.

The first contact surface 312 of the first fastener 31 for contacting the second fastener 32 is provided with a fastening convex portion 311, and the second contact surface 322 of the second fastener 32 for contacting the first fastener 31 is provided with a fastening concave portion 321; the buckling convex part 311 is of a convex structure, and the buckling concave part 321 is of a concave structure; the buckling convex part 311 and the buckling concave part 321 can be mutually matched and buckled to close the first buckle 31 and the second buckle 32; the locking protrusion 311 has a certain elasticity and can be elastically deformed, and when the locking protrusion 311 is inserted into the locking recess 321, the locking protrusion 311 and the locking recess 321 are engaged with each other, and the first fastener 31 and the second fastener 32 are integrally connected.

As shown in fig. 6 and 8, a first missing surface 313 is provided at the edge of the first contact surface 312, and a first supporting portion 314 is formed at the junction of the first contact surface 312 and the first missing surface 313; a second missing surface 323 is provided at the edge of the second contact surface 322; the junction of the second contact surface 322 and the second missing surface 323 forms a second support portion 324. The first support 314 and the second support 324 may be formed as an entire cylindrical curved surface, or may be formed as two or more independent cylindrical curved surfaces, and the first support 314 and the second support 324 may contact each other to generate interaction therebetween.

The first catch 31 and the second catch 32 can rotate about the first support portion 314 and the second support portion 324 as fulcrums to open or separate the catch convex portion 311 and the catch concave portion 321 from each other. Referring to fig. 8, three states of the first fastening member 31 and the second fastening member 32 are shown, which are sequentially, from top to bottom, ① a state in which the first fastening member 31 and the second fastening member 32 are engaged with each other, ② a state in which the first fastening member 31 and the second fastening member 32 are rotated relative to each other with the first supporting portion 314 and the second supporting portion 324 as a fulcrum, and ③ a state in which the first fastening member 31 and the second fastening member 32 are completely separated.

In the state ①, the first contact surface 312 and the second contact surface 322 are in contact with each other, and the engaging convex portion 311 and the engaging concave portion 321 are kept engaged with each other; torque with opposite directions is applied by taking the first supporting part 314 and the second supporting part 324 as supporting points, so that the first fastener 31 and the second fastener 32 rotate around a supporting point formed by the first supporting part 314 and the second supporting part 324 to reach a state ②, and the fastening convex part 311 and the fastening concave part 321 are separated from each other; the first fastener 31 and the second fastener 32 are then completely separated by applying a separation action to the first fastener 31 and the second fastener 32 to reach a state ③. In this process, the buckle convex portion 311 and the buckle concave portion 321 are separated from each other by applying torque, and are not pulled apart from each other directly to the left and right, and the separation of the buckle convex portion 311 and the buckle concave portion 321 can be completed by smaller acting force, so that the opening and closing can be completed more easily, and the convenience of opening and closing the slide fastener can be improved. When the buckling operation is needed, the operation is performed in the reverse order.

When the first fastening member 31 and the second fastening member 32 are separated from each other, a space is provided for the sub-member 2 to enter and exit, and the sub-member 2 can be inserted into or taken out of the main-member 1.

Based on the above scheme, the first arc-shaped notch 315 is arranged on the first fastener 31, and the second arc-shaped notch 325 is arranged on the second fastener 32; the first arc segment 315 and the second arc segment 325 are both concave structures. When the first contact surface 312 and the second contact surface 322 are in contact with each other, that is, the first fastener 31 and the second fastener 32 are matched and fastened together to form a whole, the first arc-shaped portion 315 and the second arc-shaped portion 325 are spliced to form an arc-shaped space for accommodating the tooth ball 21 of the sub-component 2. In combination with the illustration of fig. 6 and 7, the structure of the first arc-missing portion 315 and the second arc-missing portion 325 is shown, the first arc-missing portion 315 and the second arc-missing portion 325 can be spliced to form an arc-shaped concave space, and in combination with the illustration of fig. 11, when the tooth ball 21 at one end of the sub-component 2 is close to the opening and closing fastener 3, a part of the tooth ball 21 can be embedded into the arc-missing space, and the arc-missing space not only blocks and limits the end of the sub-component 2, but also can prevent the tooth ball 21 from being tilted, so as to prevent the tooth ball 21 from extending out of the gap of the female tooth 11 and avoid the sub-component 2 from being separated from the female component 1.

Further, as shown in fig. 1, 2 and 3, the female member 1 is provided with a fixing fastener 4, and the fixing fastener 4 and the opening and closing fastener 3 are respectively located at two ends of the chain of the female teeth 11, and respectively limit two ends of the sub-member 2. Only one end of the chain of the female teeth 11 is provided with the opening and closing fastener 3 for taking out the sub-component 2, and the other end is provided with the fixing fastener 4 to keep a normally closed state.

As shown in fig. 15, 16 and 17, the fixing fastener 4 is provided with a hollow part 41, the hollow part 41 is in an independent concave structure, and the hollow part 41 is used for accommodating the tooth ball 21 of the sub-component 2; as shown in fig. 10 and 11, the fixing fastener 4 and the opening and closing fastener 3 limit the two ends of the sub-member 2 respectively. Referring to fig. 10, when the sub 2 is moved to the leftmost end, the sub-tooth ball 21 at the left end is fitted into the hollow 41; as shown in fig. 11, when the sub-member 2 moves to the rightmost end, the sub-tooth ball 21 at the right end is inserted into the arc-missing space formed by the first arc-missing portion 315 and the second arc-missing portion 325 spliced,

As shown in fig. 5, the fastening protrusion 311 includes two cantilever arms opened in an "eight" shape, and the distance between the two cantilever arms increases gradually toward the distal end; the fastening concave portion 321 is a groove with a small mouth and a large bottom. The buckle concave part 321 is the dovetail structure, and the buckle convex part 311 is the cantilever structure of dovetail form, adopts the cantilever structure to produce the elastic deformation of bigger range, compares in solid structure, and not only material self is extruded deformation, and the cantilever can also receive the extrusion to produce bending deformation, and the deformation range is bigger, and the operation is more laborsaving.

Referring to fig. 4, the Z-axis direction is the thickness direction of the first fastener 31, the upward side is the exposed surface, the fastening convex portion 311 is disposed on the outward side of the thickness direction of the first fastener 31, and the first missing surface 313 is disposed on the inward side of the thickness direction of the first fastener 31; the thickness of the snap convex portion 311 is less than or equal to two-thirds of the thickness of the first fastener 31; that is, the thickness of the catching convex part 311 is smaller than the thickness of the entire first fastening member 31.

The fastening concave portion 321 is disposed on an outward side in the thickness direction of the second fastening member 32, and the second missing surface 323 is disposed on an inward side in the thickness direction of the second fastening member 32; the thickness of the snap recess 321 is less than or equal to two-thirds of the thickness of the second fastener 32; i.e. the thickness of the snap recess 321 is less than the thickness of the entire second fastener 32.

Specifically, the outer surface of the first fastener 31 and the outer surface of the second fastener 32 are smooth abutting surfaces, ensuring a neat and smooth appearance without edges. The outward surface of the opening and closing fastener 3 in the thickness direction is an arc surface or a corner folding surface; the inward surface of the opening and closing fastener 3 in the thickness direction is a plane, one side facing the body is an inner side, the opening and closing fastener can be set to be a plane, one side of the back body is an outer side, and an arc-shaped curved surface is adopted.

The first fastener 31 is provided with a first hand-fastening recess 316 for hand fastening, and the second fastener 32 is provided with a second hand-fastening recess 326 for hand fastening. Referring to fig. 4 and 5, the first hand-fastening recess 316 and the second hand-fastening recess 326 are formed on the exposed sides and are located at the edges of the first fastening member 31 and the second fastening member 32, and when the first fastening member 31 and the second fastening member 32 need to be separated, the first hand-fastening recess 316 and the second hand-fastening recess 326 are respectively fastened by two fingers, so that the first fastening member 31 and the second fastening member 32 are applied with a breaking force.

On the basis of any one of the above technical schemes and the combination thereof, as shown in fig. 9, the sub-component 2 comprises a sub-tooth ball 21, a sub-band rib 22 and a sub-band rib 23, wherein the sub-band rib 22 connects a plurality of sub-tooth balls 21 in series, and the edge of the sub-band rib 23 is fixed on the sub-tooth ball 21 and the sub-band rib 22, the sub-tooth ball 21 and the sub-band rib 22 are fixed to form a whole. The two ends of the sub-cloth belt 23 are provided with avoidance notches 231, and the avoidance notches 231 are respectively positioned at the positions of the two ends of the sub-cloth belt 23 close to the sub-tooth balls 21.

The avoidance notch 231 is a U-shaped opening, so that avoidance can be formed when the child gear ball 21 is used for fixing the blank part 41 of the fastener 4 or embedding the arc blank space of the opening and closing fastener 3, and on the other hand, the warp and weft yarns of the child cloth belt 23 are avoided; it is also possible to avoid the occurrence of an obstacle to the movement of the sub-ball 21. The avoidance notch 231 preferably uses an ultrasonic cutting technology to make the notch smooth and clean, and the base cloth is not damaged and fiber is not dispersed when used for a plurality of times; other cutting techniques can be used, and the strength of the two ends of the sub-cloth belt 23 can be ensured by rubberizing.

As shown in fig. 1 to 3, the female member 1 includes female teeth 11, female tape ribs 12 and female tape 13, and the female teeth 11, the opening and closing fastener 3 and the fixing fastener 4 are respectively mounted to the female tape 13; the female cloth belt 13 is provided with two pieces which are respectively fixed on two sides of the female teeth 11.

As shown in fig. 12, 13 and 14, the female tooth 11 includes a tooth base 111 and a tooth hook 112, and the tooth hook 112 is fixed to the tooth base 111 and forms a slit gap 113 with the tooth base 111 for inserting the sub-cloth tape 23 and a sliding cavity 114 for sliding the sub-tooth ball 21; the sliding inner cavity 114 is a cylindrical inner surface, and ensures smooth sliding of the sub-tooth ball 21. The tooth chamfer 1121 is formed at the outer edge of the tooth hook 112, and when the chain formed by the whole female tooth 11 is bent, a fixed bending radian is formed, the tooth chamfer 1121 can be in surface contact with the pull head, so that a larger contact area is provided, and the normal use of the slide chain in a bending state is ensured.

As shown in fig. 12 and 13, the bottom of the tooth base 111 is provided with the base recess 1111, the base recess 1111 is provided with a nozzle for injection molding, burrs are formed at the nozzle after injection molding and cooling, and the burrs are provided at the concave position of the tooth base 111, so that the influence of the burrs on the hand feeling can be avoided.

Specifically, the relevant parameters of the slide chain are as follows:

The spacing of the female teeth 11 is 2.0-5.0mm, the width of the front and back sides of a single female tooth 11 is 2.0-4.0mm, the outer diameter of the sub-tooth ball 21 is 2.0-4.5mm, the diameter of the inner circle of the tooth cavity of the sliding inner cavity 114 is 2.5-5.0mm, and the spacing of the slit gaps 113 is 0.8-2.0mm.

The sub-tooth ball 21 adopts a chamfer arc design, and is provided with two sharp middle drums; the two ends of the sub-cloth belt 23 are provided with rubberizing to improve the strength.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The slide chain comprises a parent piece (1) and a child piece (2), and is characterized by further comprising an opening and closing fastener (3) arranged on the parent piece (1); the sub-piece (2) is assembled on the main piece (1) in a sliding way, and the opening and closing fastener (3) blocks the position of at least one end;

The opening and closing fastener (3) comprises a first fastener (31) and a second fastener (32); a first contact surface (312) of the first fastener (31) for contacting the second fastener (32) is provided with a fastening convex part (311), and a second contact surface (322) of the second fastener (32) for contacting the first fastener (31) is provided with a fastening concave part (321); the buckling convex part (311) and the buckling concave part (321) can be mutually matched and clamped so as to close the first fastener (31) and the second fastener (32);

A first missing surface (313) is arranged at the edge of the first contact surface (312), and a first supporting part (314) is formed at the junction of the first contact surface (312) and the first missing surface (313);

A second missing surface (323) is arranged at the edge of the second contact surface (322); a second supporting part (324) is formed at the junction of the second contact surface (322) and the second missing surface (323);

The first fastening member (31) and the second fastening member (32) are rotatable about the first support portion (314) and the second support portion (324) so as to open or separate the fastening convex portion (311) and the fastening concave portion (321) from each other.

2. The slide chain according to claim 1, wherein the first fastener (31) is provided with a first arc-shaped notch (315) and the second fastener (32) is provided with a second arc-shaped notch (325); when the first contact surface (312) and the second contact surface (322) are in contact with each other, the first arc-lacking part (315) and the second arc-lacking part (325) are spliced to form an arc-lacking space for accommodating the tooth ball (21) arranged on the sub-component (2).

3. The slide chain according to claim 1, characterized in that the female part (1) is provided with a fixing fastener (4), the fixing fastener (4) is provided with a hollow part (41), and the hollow part (41) is used for accommodating a child gear ball (21) arranged on the child part (2);

The fixing fastener (4) and the opening and closing fastener (3) limit the two ends of the sub-piece (2) respectively.

4. The slide chain according to claim 1, characterized in that the snap-fit protrusion (311) comprises two cantilever arms splayed in an eight-shape, the distance between the two cantilever arms increasing towards the distal end;

The clamping concave part (321) is a groove with a small opening and a large bottom.

5. The slide chain according to claim 4, wherein the click protruding portion (311) is provided on an outward side in a thickness direction of the first fastener (31), and the first missing surface (313) is provided on an inward side in the thickness direction of the first fastener (31); the thickness of the buckling convex part (311) is less than or equal to two thirds of the thickness of the first fastener (31);

The fastening concave part (321) is arranged on the outward side of the second fastener (32) in the thickness direction, and the second missing surface (323) is arranged on the inward side of the second fastener (32) in the thickness direction; the thickness of the fastening concave portion (321) is less than or equal to two-thirds of the thickness of the second fastener (32).

6. The slide chain according to claim 1, characterized in that the outer surface of the first fastener (31) and the outer surface of the second fastener (32) are smooth abutting surfaces; the outward surface of the opening and closing fastener (3) in the thickness direction is an arc surface or a corner folding surface; the inward surface of the opening and closing fastener (3) in the thickness direction is a plane.

7. The slide chain according to claim 1, characterized in that the first fastener (31) is provided with a first hand-button recess (316) for a hand button and the second fastener (32) is provided with a second hand-button recess (326) for a hand button.

8. The slide chain according to any one of claims 1 to 7, characterized in that the sub-element (2) comprises a sub-toothed ball (21), a sub-band rib (22), a sub-band (23), the sub-band rib (22) connecting a number of the sub-toothed balls (21) in series, the sub-band (23) being fixed to the sub-toothed ball (21) and the sub-band rib (22);

Two ends of the child cloth belt (23) are provided with avoidance notches (231).

9. The slide chain according to claim 8, characterized in that the female member (1) comprises female teeth (11), female band ribs (12) and female band (13), the female teeth (11), the open-close fastener (3) and the fixing fastener (4) being respectively mounted to the female band (13);

The female tooth (11) comprises a tooth base (111) and a tooth hook (112), wherein the tooth hook (112) is fixed on the tooth base (111) and forms a slit gap (113) with the tooth base (111) for the penetration of the child cloth belt (23) and a sliding inner cavity (114) for the sliding of the child tooth ball (21);

a tooth chamfer (1121) is arranged at the outer side edge of the tooth hook part (112);

A base recess (1111) is arranged at the bottom of the tooth base (111), and a water gap for injection molding is arranged in the base recess (1111).

10. The slide chain according to claim 9, wherein the distance between the female teeth (11) is 2.0-5.0mm, the width of the front and back of each female tooth (11) is 2.0-4.0mm, the outer diameter of the child tooth ball (21) is 2.0-4.5mm, the diameter of the inner circle of the tooth cavity of the sliding inner cavity (114) is 2.5-5.0mm, and the distance between the gap-distributing notches (113) is 0.8-2.0mm;

The sub-tooth ball (21) adopts a chamfer arc design, and is provided with a middle drum with two sharp ends;

The two ends of the sub cloth belt (23) are provided with rubberizing to improve the strength.