Anti-torsion invisible puller and zipper
By setting up structures such as elevated stops, thickened bosses and guides in the invisible pull-out, the problem of deformation of the existing invisible zippers during torsion test is solved, and the pass and torsion resistance of the structure is achieved with a higher level of detection. .
Patent Information
- Application Number
- CN202420829696.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-19
AI Technical Summary
In the twisting test, existing invisible zippers are prone to deformation of the limit part due to the swaying of the self-locking plate, causing the pull-out to break away, and cannot pass the higher-level children's clothing zipper inspection.
A resistant invisible slider is designed. By setting two elevated stops and two thickened bosses on the slider body, the front and rear ends of the self-locking plate are respectively restrained, combining the guide part, wall and reinforcement. The structure of the rib ensures that the self-locking sheet does not deform when twisted, and enhances the connection stability through the elastic unit and the articulated structure.
Effectively prevent the self-locking plate from swaying due to twisting, ensure the firm connection between the pull-ring and the invisible pull-out, ensure that the pull-out and zipper finished products can be tested through higher-level children's zipper twisting, improving the structure's torsion resistance and safety of use .
Smart Images
Figure CN222149219U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of zippers, and in particular relates to an anti-twist invisible slider and a zipper. Background Art
[0002] The chain teeth of invisible zippers are exquisite and compact, and are not exposed, which is both beautiful and practical. Therefore, the application prospects of invisible zippers in the clothing industry are quite broad. The traditional invisible zipper is shown in the Chinese patent with publication number CN2123905U, which discloses an invisible zipper, including a webbing with chain teeth, a slider, and a pull ring. The slider has a spring hole and a stop hole, and the spring is installed in the spring hole. The self-locking piece is connected to the slider through a connecting piece and can rotate around the connecting piece. With the advancement of technology and the expansion of the market, people have also put forward higher requirements for the design and performance of invisible zippers.
[0003] In order to prevent zippers and accessories from causing harm to children due to quality problems during the manufacturing process, children's clothing exported to Japan, Europe, the United States and other countries needs to be tested for zippers and accessories on children's clothing. When the slider is subjected to a 180-degree twist test, the pull tab is subjected to a torsional force, and the self-locking tab will be lifted by the pull tab. At this time, the front end of the self-locking tab is prone to swing left and right due to loss of restriction. In severe cases, the limit part of the slider will be deformed, causing the self-locking tab to detach from the slider from the stop hole, resulting in a test failure.
[0004] Therefore, there is an urgent need to provide a torsion-resistant invisible slider and zipper to solve the deficiencies in the above-mentioned prior art. Summary of the invention
[0005] In view of the problems in the related art, the utility model proposes a torsion-resistant invisible slider and zipper to solve the technical problems that the existing invisible zippers are insufficient in torsion deformation resistance and cannot pass the children's clothing zipper test.
[0006] The technical solution of the utility model is implemented as follows: an anti-twist invisible slider, comprising a slider body and a self-locking piece; a connecting seat is provided on the slider body, and the self-locking piece is hinged on the connecting seat; a pull-stop hole is provided at the front end of the connecting seat, and an elastic unit is provided at the rear end; the self-locking piece is provided with a hook tip corresponding to the pull-stop hole, and the elastic unit acts on the self-locking piece to drive the hook tip of the self-locking piece to be inserted into the pull-stop hole;
[0007] The connecting seat is provided with two raised blocks at the stop hole, and the outer ends of the two raised blocks are connected to each other as a whole to form a guide part; the connecting seat is provided with two wall blocks at the connection with the self-locking plate, and the inner sides of the two wall blocks protrude towards each other to form two thickened bosses; the two raised blocks and the two thickened bosses respectively constrain the front and rear ends of the self-locking plate; the wall blocks are transitionally connected with the corresponding raised blocks, and a concave notch part is formed at the connection; the pull ring is inserted from the guide part to the notch part, and the self-locking plate and the connecting seat embrace each other, and the pull ring is buckled on the connecting seat.
[0008] In the utility model, two heightened blocks and two thickened bosses are provided on the slider body to respectively constrain the front and rear ends of the self-locking plate to ensure that when the self-locking plate is subjected to torsional force, the slider body will not be deformed due to the torsional force, so that the connection between the pull ring and the invisible slider is firm and reliable, ensuring that the slider and the finished zipper can pass a higher level of children's clothing zipper torsion detection.
[0009] As a further improvement of the above solution, the thickness of the front end of the guide portion away from the stop hole decreases smoothly from bottom to top; or, the thickness of the front end of the guide portion away from the stop hole shrinks first from bottom to top and then decreases smoothly.
[0010] It should be noted that while ensuring the structural strength, a more beautiful and streamlined design is achieved. The smooth transition thickness can reduce stress concentration and improve the overall structural strength and durability of the product. In addition, the thickness of the front end of the guide part can also be retracted first and then smoothly reduced. Such a setting helps the molten metal to fill the mold more smoothly during the die-casting process. The retracted part can provide a buffer zone for the molten metal, making the flow more uniform, avoiding rapid changes in flow direction and eddy currents, thereby reducing the occurrence of die-casting defects.
[0011] As a further improvement of the above solution, the cross section of the guide portion in its extension direction is triangular or trapezoidal. The triangular structural feature enables the guide portion to have a higher resistance when subjected to bending or torsion. The trapezoidal structure also has good bending resistance, especially when the bottom of the trapezoid is wider, its bending section coefficient is larger, which means stronger bending resistance.
[0012] As a further improvement of the above solution, the upper edge of the heightened stopper is lower than the upper edge of the wall stopper and not lower than the central axis of the hinged connection between the self-locking piece and the connecting seat. The upper edge of the heightened stopper is not lower than the central axis of the hinged connection between the self-locking piece and the connecting seat, which helps the heightened stopper to provide sufficient lateral support force for the self-locking piece, ensures that the hinged structure between the self-locking piece and the connecting seat is stable and reliable, and enhances the stability and durability of the overall structure.
[0013] As a further improvement of the above scheme, the stop hole passes through the guide part from top to bottom, and the opening of the stop hole is gradually retracted from top to bottom; a notch is provided on the side of the guide part facing the wall stop, and the notch is connected to the stop hole.
[0014] The opening of the pull stop hole is gradually retracted from top to bottom, which helps the molten metal flow more smoothly during the die casting process and improves the quality of molten metal forming. In addition, a notch is provided on the side of the guide portion facing the wall stop. The notch design can make the slider body form a more solid structure in this area and improve the overall anti-torsion ability.
[0015] As a further improvement of the above solution, the heightened stopper is further provided with a reinforcing rib on one side facing the wall stopper, and the reinforcing rib is chamfered or rounded. The design of the reinforcing rib can improve the manufacturing processability, making the product easier to fill and cool during the molding process such as injection molding and die casting, reducing the warping and deformation of the product, and further absorbing and dispersing the impact energy from the outside, effectively improving the anti-torsion ability of the slider body, and significantly reducing the possibility of structural damage.
[0016] As a further improvement of the above solution, two wall guards are provided with through holes, and fasteners pass through the through holes to hinge the self-locking plate and the connecting seat; the wall guard is provided with an inward-retracted air-avoiding groove near the through holes; the head of the fastener is placed in the air-avoiding groove and does not expose the outer surface of the wall guard. The fastener head is not exposed to reduce the risk of accidental touch or hooking, thereby enhancing the safety of the zipper when in use.
[0017] As a further improvement of the above scheme, the protruding part of the thickened boss is matched with the retracted part of the air avoidance groove. It should be noted that the retracted air avoidance groove reduces the thickness of the corresponding part of the wall stop, making the lateral support structure at the rear end of the self-locking plate relatively thin and easy to deform and damage in the torsion test. Furthermore, configuring a thickened boss and making the protruding part of the thickened boss match the retracted part of the air avoidance groove can help enhance the connection strength and rigidity of the structure. When the slider body is subjected to external force, this structure can better resist deformation and damage.
[0018] As a further improvement of the above scheme, the self-locking sheet includes a sheet body, on which a hinge hole matching the fastener is provided; one end of the sheet body extends in an arch shape to form a suspension beam; the end of the extension of the suspension beam is provided with the hook tip; the other end of the sheet body protrudes along a side away from the hook tip to form a pressing portion, and the pressing portion abuts against the elastic unit; when the suspension beam of the self-locking sheet is subjected to force and lifted around the hinge point, the hook tip is restricted in the gap between the two heightened blocks. By restricting the hook tip in the gap between the two heightened blocks, the torsion range of the self-locking sheet when subjected to external force can be effectively limited, significantly improving the stability of the overall structure, and preventing structural damage or functional failure caused by excessive torsion.
[0019] The utility model also provides a torsion-resistant invisible zipper, comprising the torsion-resistant invisible slider as described above.
[0020] Beneficial effects:
[0021] The utility model sets two heightened blocks and two thickened bosses on the slider body, respectively constraining the front and rear ends of the self-locking plate, so as to ensure that when the self-locking plate is subjected to a torsional force, the slider body will not be deformed by the torsional force, so that the connection between the pull ring and the invisible slider is firm and reliable. In addition, the outer ends of the two heightened blocks are connected to each other as a whole, further optimizing the structural strength; when the self-locking plate is pulled and twisted, the two thickened bosses provide lateral constraints for the hook tip of the self-locking plate, which can effectively prevent the self-locking plate from swinging and causing the pull ring to be disengaged, ensuring that the slider and the finished zipper can pass a higher level of children's clothing zipper torsion detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic structural diagram of the invisible slider of Example 1;
[0023] Figure 2 This is an exploded schematic diagram of the invisible slider of Example 1;
[0024] Figure 3 is a three-dimensional diagram of the slider body of Example 1;
[0025] Figure 4 A three-dimensional view of the slider body of Example 1 from another perspective;
[0026] Figure 5 A three-dimensional view of the slider body of Example 1 from another perspective;
[0027] Figure 6 is a cross-sectional view of the invisible slider of Example 1;
[0028] Figure 7 This is a schematic diagram of the twisting of the invisible slider of Example 1;
[0029] Figure 8is a three-dimensional diagram of a slider body of Example 2;
[0030] Reference numerals:
[0031] 1. Slider body;
[0032] 11. Connecting seat; 111. Stop hole; 112. Elastic unit;
[0033] 12. Heightening block; Y1. Guide part;
[0034] 13, wall stop; 131, thickened boss; Q1, notch; 132, through hole;
[0035] 14. notch; 15. reinforcing rib; 16. fastener; 17. avoidance groove;
[0036] 2. Self-locking sheet; 21. Sheet body; 22. Cantilever beam portion; 23. Hook tip portion; 24. Hinge hole; 25. Pressing portion;
[0037] 3. Pull ring. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0039] Example 1
[0040] like Figure 1-Figure 7 As shown, a torsion-resistant invisible zipper includes a webbing with chain teeth, an invisible slider and a pull ring 3. The invisible slider includes a slider body 1 and a self-locking plate 2; a connecting seat 11 is provided on the slider body 1, and the self-locking plate 2 is hinged on the connecting seat 11; a pull-stop hole 111 is provided at the front end of the connecting seat 11, and a cylindrical hole arranged in the vertical direction is provided at the rear end, and an elastic unit 112 is installed in the cylindrical hole. Specifically, the elastic unit 112 can be a spring; the self-locking plate 2 is provided with a hook tip 23 corresponding to the pull-stop hole 111, and the elastic unit 112 acts on the self-locking plate 2 to drive the hook tip 23 of the self-locking plate 2 to be inserted into the pull-stop hole 111.
[0041] The connecting seat 11 is provided with two heightened blocks 12 at the stop hole 111, and the outer ends of the two heightened blocks 12 are connected to each other as a whole to form a guide portion Y1. In this embodiment, the thickness of the front end of the guide portion Y1 away from the stop hole 111 first shrinks from bottom to top and then decreases smoothly. The thickness of the front end of the guide portion Y1 shrinks first and then decreases smoothly. Such a setting helps the molten metal to fill the mold more smoothly during the die-casting process. The shrinking part can provide a buffer zone for the molten metal, making the flow more uniform, avoiding rapid changes in flow direction and eddy currents, thereby reducing the occurrence of die-casting defects.
[0042] Specifically, the cross section of the guide portion Y1 in its extension direction is triangular or trapezoidal. The triangular structural feature enables the guide portion Y1 to have a higher resistance when subjected to bending or torsion. The trapezoidal structure also has good bending resistance, especially when the bottom of the trapezoid is wider, its bending resistance section coefficient is larger, which means stronger bending resistance.
[0043] In this embodiment, the stop hole 111 passes through the guide part Y1 from top to bottom, and the opening of the stop hole 111 is gradually retracted from top to bottom; the guide part Y1 is provided with a notch 14 on the side facing the wall stop 13, and the notch 14 is connected to the stop hole 111. The opening of the stop hole 111 is gradually retracted from top to bottom, which helps the molten metal to flow more smoothly during the die-casting process and improves the molding quality of the molten metal. In addition, the guide part Y1 is provided with a notch 14 on the side facing the wall stop 13. The design of the notch 14 can make the slider body 1 form a more solid structure in this area, thereby improving the overall anti-twist ability.
[0044] The connecting seat 11 is provided with two wall blocks 13 at the connection with the self-locking plate 2, and the inner sides of the two wall blocks 13 protrude towards each other to form two thickened bosses 131; the two heightened blocks 12 and the two thickened bosses 131 respectively constrain the front and rear ends of the self-locking plate 2; the wall blocks 13 are transitionally connected with the corresponding heightened blocks 12, and a concave notch portion Q1 is formed at the connection; the pull ring 3 is inserted from the guide portion Y1 into the notch portion Q1, and the self-locking plate 2 and the connecting seat 11 are mutually embraced, and the pull ring 3 is buckled on the connecting seat 11.
[0045] In this embodiment, the upper edge of the heightened stopper 12 is lower than the upper edge of the wall stopper 13, and is not lower than the central axis of the hinged joint between the self-locking piece 2 and the connecting seat 11. The upper edge of the heightened stopper 12 is not lower than the central axis of the hinged joint between the self-locking piece 2 and the connecting seat 11, which helps the heightened stopper 12 provide sufficient lateral support force for the self-locking piece 2, ensures that the hinged structure between the self-locking piece 2 and the connecting seat 11 is stable and reliable, and enhances the stability and durability of the overall structure.
[0046] In this embodiment, the heightened stopper 12 is further provided with a reinforcing rib 15 on one side facing the wall stopper 13, and the reinforcing rib 15 is chamfered or rounded. The design of the reinforcing rib 15 can improve the manufacturing process, making it easier to fill and cool the product during the molding process such as injection molding and die casting, reducing the warping and deformation of the product, and further absorbing and dispersing the impact energy from the outside, effectively improving the anti-torsion ability of the slider body 1, and significantly reducing the possibility of structural damage.
[0047] In this embodiment, two wall blocks 13 are provided with through holes 132 , and fasteners 16 pass through the through holes 132 to hinge the self-locking sheet 2 and the connecting seat 11 ; specifically, the fasteners 16 can be rivets.
[0048] The wall stop 13 is provided with an inwardly retracted escape groove 17 near the through hole 132; the head of the fastener 16 is placed in the escape groove 17 and is not exposed to the outer surface of the wall stop 13. The head of the fastener 16 is not exposed to reduce the risk of accidental touch or hooking, thereby enhancing the safety of the zipper when in use.
[0049] In this embodiment, the protruding portion of the thickened boss 131 is matched with the retracted portion of the air avoidance groove 17. It should be noted that the retracted air avoidance groove 17 reduces the thickness of the corresponding portion of the wall stop 13, making the lateral support structure at the rear end of the self-locking plate 2 relatively thin and easily deformed and damaged during the torsion test. Furthermore, configuring the thickened boss 131 and making the protruding portion of the thickened boss 131 match the retracted portion of the air avoidance groove 17 helps to enhance the connection strength and rigidity of the structure. When the slider body 1 is subjected to external force, this structure can better resist deformation and damage.
[0050] In this embodiment, the self-locking sheet 2 comprises a sheet body 21, on which a hinge hole 24 matching the fastener 16 is provided; one end of the sheet body 21 extends in an arch shape to form a suspension beam 22; the end of the suspension beam 22 is provided with the hook tip 23; the other end of the sheet body 21 protrudes along a side away from the hook tip 23 to form a pressing portion 25, and the pressing portion 25 is in contact with the elastic unit 112; when the suspension beam 22 of the self-locking sheet 2 is subjected to force and lifted around the hinge point, the hook tip 23 is restricted in the gap between the two heightened stoppers 12. By restricting the hook tip 23 in the gap between the two heightened stoppers 12, the torsion range of the self-locking sheet 2 when subjected to external force can be effectively limited, the stability of the overall structure is significantly improved, and structural damage or functional failure caused by excessive torsion is prevented.
[0051] Through the above scheme of the utility model, in specific applications: two heightened blocks 12 and two thickened bosses 131 are set on the slider body 1 to respectively constrain the front and rear ends of the self-locking plate 2 to ensure that when the self-locking plate 2 is subjected to a torsional force, the slider body 1 will not be deformed by the torsional force, so that the pull ring 3 is firmly and reliably connected to the invisible slider. In addition, the outer ends of the two heightened blocks 12 are connected to each other as a whole to further optimize the structural strength; when the self-locking plate 2 is pulled and twisted, the two thickened bosses 131 provide lateral constraints for the hook tip 23 of the self-locking plate 2, which can effectively prevent the self-locking plate 2 from swinging and causing the pull ring 3 to be disengaged, ensuring that the slider and the finished zipper can pass a higher level of children's clothing zipper torsion detection.
[0052] Example 2
[0053] like Figure 8 As shown, one of the implementation modes of the utility model, the main technical scheme of this embodiment is the same as that of embodiment 1, and the features not explained in this embodiment are explained in embodiment 1, and will not be repeated here. The difference between this embodiment and embodiment 1 is:
[0054] The thickness of the front end of the guide portion Y1 away from the stop hole 111 decreases smoothly from bottom to top. It should be noted that while ensuring the structural strength, a more beautiful and streamlined design is achieved. The smooth transition thickness can reduce stress concentration and improve the overall structural strength and durability of the product.
[0055] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.
Claims
1. An anti-torsion invisible slider, comprising a slider body and a self-locking piece; the slider body is provided with a connecting seat, and the self-locking piece is hinged on the connecting seat; the front end of the connecting seat is provided with a pull-stop hole, and the rear end is provided with an elastic unit; the self-locking piece is provided with a hook tip corresponding to the pull-stop hole, and the elastic unit acts on the self-locking piece to drive the hook tip of the self-locking piece to be inserted into the pull-stop hole; the characteristics are: The connecting seat is provided with two raised blocks at the stop hole, and the outer ends of the two raised blocks are connected to each other as a whole to form a guide part; the connecting seat is provided with two wall blocks at the connection with the self-locking plate, and the inner sides of the two wall blocks protrude towards each other to form two thickened bosses; the two raised blocks and the two thickened bosses respectively constrain the front and rear ends of the self-locking plate; the wall blocks are transitionally connected with the corresponding raised blocks, and a concave notch part is formed at the connection; the pull ring is inserted from the guide part to the notch part, and the self-locking plate and the connecting seat embrace each other, and the pull ring is buckled on the connecting seat.
2. The anti-twist invisible slider according to claim 1, characterized in that: The thickness of the front end of the guide portion away from the stop hole decreases smoothly from bottom to top; or the thickness of the front end of the guide portion away from the stop hole shrinks first and then decreases smoothly from bottom to top.
3. The anti-twist invisible slider according to claim 2, characterized in that: The cross section of the guide portion in its extending direction is triangular or trapezoidal.
4. The anti-twist invisible slider according to claim 1, characterized in that: The upper edge of the heightened stopper is lower than the upper edge of the wall stopper and is not lower than the central axis of the hinged connection between the self-locking sheet and the connecting seat.
5. The anti-twist invisible slider according to claim 1, characterized in that: The stop hole passes through the guide part from top to bottom, and the hole of the stop hole is gradually retracted from top to bottom; a notch is provided on the side of the guide part facing the wall stop, and the notch is communicated with the stop hole.
6. The anti-twist invisible slider according to claim 1, characterized in that: A reinforcing rib is further provided on the side of the heightened stopper facing the wall stopper, and the reinforcing rib is in the form of a chamfered transition or a rounded transition.
7. The anti-twist invisible slider according to claim 1, characterized in that: The two wall guards are provided with through holes, and the fasteners pass through the through holes to hinge the self-locking plate and the connecting seat; the wall guard is provided with an inward-retracted avoidance groove near the through holes; the head of the fastener is placed in the avoidance groove and does not expose the outer surface of the wall guard.
8. The anti-twist invisible slider according to claim 7, characterized in that: The protruding portion of the thickened boss is matched with the retracted portion of the air-avoiding groove.
9. The anti-twist invisible slider according to claim 8, characterized in that: The self-locking sheet includes a sheet body, on which is provided a hinge hole compatible with the fastener; one end of the sheet body extends in an arch shape to form a cantilever beam; the end of the extended cantilever beam is provided with the hook tip; the other end of the sheet body protrudes along a side away from the hook tip to form a pressing portion, and the pressing portion is in abutment with the elastic unit; when the cantilever beam of the self-locking sheet is subjected to force and lifted around the hinge point, the hook tip is confined in the gap between the two heightened blocks.
10. A torsion-resistant invisible zipper, characterized in that: A torsion-resistant invisible slider comprising any one of claims 1 to 9.