A safety unlocking slider

Abstract

The present invention discloses a safety unlocking slider, which includes a slider body, a cap, a pull tab, a movable locking block, and a saddle-shaped spring. The movable locking block is composed of a T-shaped block and a reset spring piece. The T-shaped block is an integrally formed structure composed of a left locking claw, a right locking claw, a control pressing block, and a toothbrush. The saddle-shaped spring is a non-closed elastic body composed of a front saddle bridge, a saddle part, a rear saddle bridge, a front section of the bottom edge of the saddle-shaped spring, and a rear section of the bottom edge of the saddle-shaped spring. By using the structure in which the movable locking block cooperates with the saddle-shaped spring, the safety unlocking of the slider is realized, which is beneficial for the user to get out of trouble in time and avoid the occurrence of the situation of the pull tab shaking.

Description

Technical Field

[0001] The invention relates to a slider used on a zipper, in particular to a safety unlocking slider. Background Art

[0002] As people's living standards continue to improve, zippers are widely used in daily life, and people's performance requirements for zippers are becoming increasingly demanding. Currently, self-locking sliders on the market are generally similar, consisting of a slider body, a pull tab, a hook, a spring, and a cap. To unlock these traditional self-locking sliders, the pull tab must be pulled to lift the hook. If the pull tab is damaged and breaks, the hook cannot be lifted, rendering the entire slider immobile and causing it to accidentally lock. In emergencies, such as when clothing catches fire or is caught, requiring immediate escape, the user may pull too hard, causing the pull tab to break and fall off, resulting in the slider accidentally locking. This can prevent the user from opening the zipper and escaping quickly, posing a safety risk. Furthermore, in some situations, such as with sportswear, the pull tab can shake during physical activity due to inertia, potentially interfering with normal movement. To address this issue, we propose a safe unlocking slider. Summary of the Invention

[0003] In order to solve the problems of accidental locking and shaking of the traditional self-locking slider, the present invention provides a safe unlocking slider, which aims to provide a safe unlocking slider to effectively solve the technical problems of accidental locking of the slider and shaking of the slider when the slider breaks and falls off.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a safety unlocking slider, comprising a slider body, a cover cap, a pull tab, a movable locking block, and a saddle-shaped spring; the slider body is an integrally formed structure, the slider body comprises an upper plate and a lower plate correspondingly arranged up and down, and a guide column connecting the upper plate and the lower plate; a front connecting block is provided at the front end of the outer surface of the upper plate, the front connecting block is provided with a front positioning groove along the length symmetrical center line direction of the upper plate, a rear connecting block is provided at the rear end of the outer surface of the upper plate, and the rear connecting block is symmetrical along the length of the upper plate. A rear positioning groove is provided in the centerline direction, and the front connecting block and the rear connecting block play a role in connecting and fixing the cover cap, and a locking block limit groove matching the movable locking block is provided between the front connecting block and the rear connecting block; the cover cap is installed on the upper board, and the cover cap includes a front end portion of the cover cap, a recessed portion of the cover cap, a convex portion of the cover cap, a rear end portion of the cover cap, a front limit block of the cover cap, and a rear limit block of the cover cap; the pull tab is a rectangular pull tab, and the pull tab includes a front cross bar, a rear cross bar and a side bar, and a rectangular connecting hole is provided on the pull tab; the saddle-shaped spring is accommodated between the cover cap and the movable locking block.

[0005] Further, the ratio of the horizontal length of the cap recess to the cap protrusion is 3:2. The height from the lower surface of the cap recess to the upper deck is 2.5 times the length of the front crossbar on the long side of the tab. The height from the lower surface of the cap protrusion to the upper deck is equal to the thickness of the tab.

[0006] Further, the movable locking block is made of elastic rubber. The movable locking block is composed of a T-shaped block and a return spring piece. A clamping groove is provided on the upper surface of the T-shaped block along the length symmetry center line direction of the upper deck. The diameter of the clamping groove is 2 / 3 to 3 / 4 of the diameter of the saddle-shaped spring. The T-shaped block is an integrally formed structure composed of a left locking claw, a right locking claw, a control pressing block, and a toothbrush. Toothbrushes for increasing friction are evenly provided on the lower surfaces of the left locking claw and the right locking claw. The toothbrush is composed of several cylinders. The return spring piece is a U-shaped spring piece, and both ends of the return spring piece are fixed on the lower surface of the control pressing block.

[0007] Further, the width of the front positioning groove is 1.5 times the diameter of the saddle-shaped spring, and the width of the rear positioning groove is 1.5 times the diameter of the saddle-shaped spring.

[0008] Further, the parts of the locking block limiting groove that cooperate with the left locking claw and the right locking claw are through holes, and the part of the locking block limiting groove that cooperates with the control pressing block is a groove.

[0009] Further, the length of the rectangular connecting hole is greater than 1.5 times the length of the cap, the width of the rectangular connecting hole is greater than the width of the cap, and the length of the front crossbar on the long side of the tab is between 2 / 3 and 3 / 4 of the length of the cap protrusion.

[0010] Further, the saddle-shaped spring is a non-closed elastic body composed of a front saddle bridge, a saddle part, a rear saddle bridge, a front section of the bottom edge of the saddle-shaped spring, and a rear section of the bottom edge of the saddle-shaped spring. The front section of the bottom edge of the saddle-shaped spring is placed in the front positioning groove, the rear section of the bottom edge of the saddle-shaped spring is placed in the clamping groove and the rear positioning groove. The front saddle bridge is in close contact with the front limit block of the cap, the rear saddle bridge is in close contact with the rear limit block of the cap. The lowest point of the saddle part is located at the center position of the cap protrusion in the horizontal direction, and the lowest point of the saddle part is located at 1 / 2 of the height of the gap between the lower surface of the cap protrusion and the upper deck in the vertical direction.

[0011] Since the present invention adopts the structure in which the movable locking block is matched with the saddle-shaped spring, the following beneficial effects are obtained: When the slider is in the locked state, when the tab is damaged, broken, and detached, the pressure on the rear section of the bottom edge of the saddle-shaped spring is automatically released. Under the action of the return spring piece, the toothbrush on the movable locking block automatically disengages from the chain teeth, realizing the safe unlocking of the slider, which is beneficial for the user to get out of trouble in time; during sports, when the slider is in the locked state, the front crossbar of the tab is stuck into the space formed by the cap protrusion and the movable locking block, and the tab is pressed and fixed by the saddle-shaped spring, thus avoiding the situation of the tab shaking. Brief Description of the Drawings

[0012] Figure 1 This is an exploded view of the overall structure of the present invention.

[0013] Figure 2 It is Figure 1 a top view of the upper ship plate in

[0014] Figure 3 It is Figure 1 a top view of the movable locking block in

[0015] Figure 4 It is Figure 1 a bottom view of the movable locking block in

[0016] Figure 5 It is Figure 1 a left view of the movable locking block in

[0017] Figure 6 This is a sectional view of the slider in the locked state of the present invention.

[0018] Figure 7 This is a sectional view of the slider in the unlocked state of the present invention.

[0019] In the figures: 1 slider body, 11 upper ship plate, 1101 locking block limiting groove, 1102 front connecting block, 1103 rear connecting block, 1104 front positioning groove, 1105 rear positioning groove, 12 lower ship plate, 13 guide post, 2 cap, 21 front end portion of the cap, 22 concave portion of the cap, 23 convex portion of the cap, 24 rear end portion of the cap, 25 front limiting block of the cap, 26 rear limiting block of the cap, 3 pull tab, 31 front cross bar, 32 rear cross bar, 33 side bar, 34 rectangular connecting hole, 4 movable locking block, 41 T-shaped block, 4101 left locking claw, 4102 right locking claw, 4103 control pressing block, 4104 toothbrush, 42 reset spring piece, 43 card slot, 5 saddle-shaped spring, 51 front saddle bridge, 52 saddle portion, 53 rear saddle bridge, 54 front section of the bottom edge of the saddle-shaped spring, 55 rear section of the bottom edge of the saddle-shaped spring. Detailed Description of the Invention

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5, A safety unlocking pull head, comprising a pull head body 1, a cap 2, a pull tab 3, a movable locking block 4, and a saddle-shaped spring 5; the pull head body 1 includes an upper boat plate 11 and a lower boat plate 12 arranged corresponding to each other up and down, and a guide post 13 connecting the upper boat plate 11 and the lower boat plate 12. At the front end of the outer surface of the upper boat plate 11, there is a front connecting block 1102. Along the length symmetric center line direction of the upper boat plate, there is a front positioning groove 1104. At the rear end of the outer surface of the upper boat plate 11, there is a rear connecting block 1103. Along the length symmetric center line direction of the upper boat plate, there is a rear positioning groove 1105. The front connecting block 1102 and the rear connecting block 1103 play a role in connecting and fixing the cap 2. A locking block limiting groove 1101 matching the movable locking block 4 is formed between the front connecting block 1102 and the rear connecting block 1103; the cap 2 is installed on the upper boat plate 11, and the cap 2 includes a cap front end portion 21, a cap concave portion 22, a cap convex portion 23, a cap rear end portion 24, a cap front limiting block 25, and a cap rear limiting block 26; the pull tab 3 includes a front cross bar 31, a rear cross bar 32, and a side bar 33; the movable locking block 4 is composed of a T-shaped block 41 and a return spring piece 42, and the T-shaped block 41 is an integrally formed structure composed of a left locking claw 4101, a right locking claw 4102, a control pressing block 4103, and a toothbrush 4104; the saddle-shaped spring 5 is a non-closed elastic body composed of a front saddle bridge 51, a saddle portion 52, a rear saddle bridge 53, a front section of the saddle-shaped spring bottom edge 54, and a rear section of the saddle-shaped spring bottom edge 55.

[0022] During installation, the movable locking block 4 can be first placed in the locking block limiting groove 1101, the saddle-shaped spring 5 is placed inside the cap 2, so that the front saddle bridge 51 is in close contact with the cap front limiting block 25, and the rear saddle bridge 53 is in close contact with the cap rear limiting block 26. The pull tab 3 passes through the gap between the front section of the saddle-shaped spring bottom edge 54 and the rear section of the saddle-shaped spring bottom edge 55, the pull tab 3 is sleeved on the cap 2, the cap front end portion 21 is installed on the front connecting block 1102, and at the same time, the front section of the saddle-shaped spring bottom edge 54 is placed in the front positioning groove 1104. Then, the cap rear end portion 24 is installed on the rear connecting block 1103, and at the same time, the rear section of the saddle-shaped spring bottom edge 55 is placed in the card slot 43 and the rear positioning groove 1105.

[0023] Refer to Figure 6When the safety unlocking slider needs to be locked, the user inserts the front crossbar 31 of the pull tab 3 into the space formed by the cap convex part 23 and the movable locking block 4. The pull tab 3 is pressed and fixed, preventing the pull tab 3 from shaking. At this time, the upper surface of the front crossbar 31 abuts against the saddle part 52, and the lower surface of the front crossbar 31 abuts against the rear section of the bottom edge of the saddle-shaped spring 55. The front crossbar 31 applies a downward pressure to the rear section of the bottom edge of the saddle-shaped spring 55. Since the rear section of the bottom edge of the saddle-shaped spring 55 is installed in the card slot 43 of the movable locking block 4, the rear section of the bottom edge of the saddle-shaped spring 55 will apply a downward pressure to the movable locking block 4, causing the reset spring piece 42 to undergo elastic deformation. The movable locking block 4 descends in the locking block limiting groove 1101, and the toothbrush 4104 also descends into the slider cavity. Under the pressure of the rear section of the bottom edge of the saddle-shaped spring 55, the toothbrush 4104 is in close contact with the surface and gaps of the zipper teeth. Compared with the point-surface contact of the horse hook, this type of contact area is larger, playing a role in safely locking the zipper.

[0024] Refer to Figure 7 When the safety unlocking slider needs to be unlocked, the user pushes the pull tab 3 into the space formed by the cap concave part 22 and the movable locking block 4. At this time, the front crossbar 31 no longer contacts the saddle part 52, and the acting force applied by the front crossbar 31 to the saddle-shaped spring 5 disappears. Therefore, the pressure applied by the rear section of the bottom edge of the saddle-shaped spring 55 to the movable locking block 4 also disappears, and the reset spring piece 42 automatically rebounds, driving the entire movable locking block 4 to rise in the locking block limiting groove 1101. The toothbrush 4104 disengages from the zipper teeth, and the zipper is opened accordingly.

[0025] When the pull tab 3 is damaged, broken, or falls off, the pressure applied by the rear section of the bottom edge of the saddle-shaped spring 55 to the movable locking block 4 is automatically released, the reset spring piece 42 automatically rebounds, and the toothbrush 4104 disengages from the zipper teeth, realizing the safety unlocking of the slider.

Claims

1. A safety unlocking pull head, comprising a pull head body, a cap, a pull tab, a movable locking block, and a saddle-shaped spring, characterized in that: The pull head body is an integrally formed structure, which includes an upper boat plate, a lower boat plate arranged corresponding to each other up and down, and a guide post connecting the upper boat plate and the lower boat plate. A front connecting block is provided at the front end of the outer surface of the upper boat plate. The front connecting block is provided with a front positioning groove along the length symmetry center line direction of the upper boat plate. A rear connecting block is provided at the rear end of the outer surface of the upper boat plate. The rear connecting block is provided with a rear positioning groove along the length symmetry center line direction of the upper boat plate. A locking block limiting groove matching the movable locking block is formed between the front connecting block and the rear connecting block; The movable locking block is made of elastic rubber and is composed of a T-shaped block and a reset spring piece. The T-shaped block is an integrally formed structure composed of a left locking claw, a right locking claw, a control pressing block, and a toothbrush. The lower surfaces of the left locking claw and the right locking claw are evenly provided with toothbrushes for increasing friction. The reset spring piece is a U-shaped spring piece, and both ends of the reset spring piece are fixed on the lower surface of the control pressing block. A card slot is provided on the upper surface of the T-shaped block along the length symmetry center line direction of the upper boat plate; The cap is installed on the upper boat plate, and the cap includes a cap front end part, a cap concave part, a cap convex part, a cap rear end part, a cap front limiting block, and a cap rear limiting block; The pull tab is a rectangular pull tab, which includes a front cross bar, a rear cross bar, and a side bar. A rectangular connection hole is provided on the pull tab; The saddle-shaped spring is accommodated between the cap and the movable locking block. The saddle-shaped spring is a non-closed elastic body and is composed of a front saddle bridge, a saddle part, a rear saddle bridge, a front section of the saddle-shaped spring bottom edge, and a rear section of the saddle-shaped spring bottom edge. The front saddle bridge contacts the cap front limiting block, the rear saddle bridge contacts the cap rear limiting block. The front section of the saddle-shaped spring bottom edge is placed in the front positioning groove, the rear section of the saddle-shaped spring bottom edge is placed in the rear positioning groove and the card slot. The lowest point of the saddle part is located at the center position of the cap convex part in the horizontal direction, and the lowest point of the saddle part is located at 1 / 2 of the height of the gap between the lower surface of the cap convex part and the upper boat plate in the vertical direction. The pull tab passes through the gap between the front section and the rear section of the saddle-shaped spring bottom edge and is sleeved on the cap.

2. The safety unlocking pull head according to claim 1, characterized in that: The horizontal length ratio of the cap concave part to the cap convex part is 3:

2. The height from the lower surface of the cap concave part to the upper boat plate is 2.5 times the length of the front cross bar on the long side of the pull tab. The height from the lower surface of the cap convex part to the upper boat plate is equal to the thickness of the pull tab.

3. The safety unlocking pull head according to claim 1, characterized in that: The width of the front positioning groove is 1.5 times the diameter of the saddle-shaped spring. The width of the rear positioning groove is 1.5 times the diameter of the saddle-shaped spring.

4. The safety unlocking pull head according to claim 1, wherein: The part where the locking block limiting groove cooperates with the left locking claw and the right locking claw is a through hole, and the part where the locking block limiting groove cooperates with the control pressing block is a groove.

5. The safety unlocking pull head according to claim 1, wherein: The length of the rectangular connection hole is greater than 1.5 times the length of the cap. The width of the rectangular connection hole is greater than the width of the cap. The length of the front cross bar on the long side of the pull tab is between 2 / 3 and 3 / 4 of the length of the cap convex part.

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