Hooked member pull cord and zipper

Abstract

The utility model provides a kind of hook member pull rope and zipper, including hook member, hook member includes connecting pedestal, extension arm, pair of hook head, connecting pedestal, extension arm, pair of hook head are formed hook groove by surrounding setting;Connecting pedestal includes connecting base section and first guide section;Pair of hook head includes hook buckle section and second guide section;First guide section and second guide section are oppositely arranged and form horn-like opening in the side face away from extension arm;Hook buckle section has the thickness taper structure from connection to free end;Second guide section has the taper structure of thickness taper from connection to horn-like opening direction, so that the first bulge is formed at first side face and second side face at this connection;Extension arm gradually becomes smaller in thickness from connection to the direction of its middle part, so that the second bulge is formed at first side face and second side face at this connection.Hook member has the automatic pair of hook performance and anti-drop performance of a pull.

Description

[Technical Field]

[0001] This utility model relates to the field of clothing accessories technology, specifically to a pull cord with hook and a zipper. [Background Technology]

[0002] Most zipper pulls or hook fasteners commonly found on the market currently employ a traditional hook-and-loop design, such as the hook-and-loop zipper pull described in CN205512733U. This type of structure typically requires users to manually align it precisely and apply a certain amount of pressure to lock it in place. This results in inconvenient operation, difficulty in alignment, and a tendency for it to accidentally come undone due to incomplete locking. Its reliability significantly decreases, especially under dynamic loads or vibration environments, limiting its application in demanding scenarios such as outdoor gear and safety equipment.

[0003] In view of this, this case involves in-depth research into the aforementioned issues, which led to the formation of this case. [Utility Model Content]

[0004] The present invention aims to solve the above-mentioned technical problems existing in the existing zipper pull cords by providing a pull cord and zipper with hooks, which has the automatic hook-locking performance and anti-detachment performance.

[0005] This utility model is implemented as follows: A pull rope with a hook includes a hook, which includes a connecting base, an extension arm extending outward from the connecting base, and a hook head located at the end of the extension arm for hooking with another hook. The connecting base, the extension arm, and the hook head form a hook groove. The connecting base includes a connecting base section perpendicularly connected to the extension arm and a first guide section opposite to the extension arm. The hook head includes a hook section perpendicularly connected to the extension arm and a second guide section opposite to the extension arm. The first and second guide sections are opposite to each other and form a trumpet-shaped opening on a side away from the extension arm. The hook section has a thickness tapering structure from the connection point to the free end. The second guide section has a frustum-shaped structure with a thickness tapering from the connection point towards the trumpet-shaped opening, forming a first bulge at the connection point on the first and second sides. The extension arm gradually decreases in thickness from the connection point towards its center, forming a second bulge at the connection point on the first and second sides.

[0006] Furthermore, the thickness of the first guide segment gradually decreases from the connection point with the connecting base segment to the flared opening, thus forming a frustum structure.

[0007] Furthermore, the hook segment forms an arc-shaped end face on its lower end face, and the radius of the arc-shaped end face gradually increases from the right side to the left side.

[0008] Furthermore, the hook groove is a rectangular hook groove, the length direction of the extension arm is the long side of the rectangular hook groove, and the direction of the extension arm toward the first guide segment or the second guide segment is the short side of the rectangular hook groove.

[0009] Furthermore, the maximum thickness of the hook segment is slightly greater than the length of the short side, and the minimum thickness of the hook segment is slightly less than the length of the short side.

[0010] Furthermore, the length of the second guide segment is greater than the length of the hook segment.

[0011] Furthermore, the length of the second guide segment is greater than the length of the first guide segment.

[0012] Furthermore, the rectangular hook groove has chamfered surfaces on both the first and second sides, and the thickness of the extension arm gradually decreases from the connection point with the connecting base section toward its center, so that the extension arm forms groove surfaces on both sides.

[0013] Furthermore, it also includes a rope body, which is integrally connected to the hook's connecting base.

[0014] On the other hand, a zipper includes the aforementioned hooked pull cord.

[0015] The quick-connect anti-slip hook and pull rope of this utility model have the following beneficial technical effects:

[0016] 1. The hooks utilize three technical features: a "trumpet-shaped opening design and a second guide section with a truncated cone structure," a "thickness-reducing hook section," and "a first ridge and a second ridge." These features work together to allow the two hooks to be aligned automatically when they need to be hooked together. The two trumpet-shaped openings are slightly aligned, and the hook section slides into the hook groove. This achieves automatic guidance, alignment, and hooking without complicated operations, greatly improving the success rate of connection and ease of operation. It also increases the reliability of preventing detachment under dynamic loads. This makes it particularly suitable for applications such as bags, outdoor equipment, sporting goods, and safety protection equipment, where high efficiency and reliability in connection operations are required.

[0017] 2. The formation of the first and second ridges increases structural strength and provides additional engagement points when the hooks are aligned, improving anti-slip performance. [Attached Image Description]

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a front view of the hook component in this utility model.

[0020] Figure 2 This is one of the side views of the hook component in this utility model.

[0021] Figure 3This is a three-dimensional structural diagram of the hook component in this utility model.

[0022] Figure 4 This is the second side view of the hook component in this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the two hooks in this utility model when they are hooked together.

[0024] Reference numerals: hook 100, first side 101, second side 102, upper end face 103, lower end face 104, left side face 105, right side face 106, rope 200, connecting base 1, connecting base section 11, first guide section 12, extension arm 2, grooved surface 21, hook head 3, hook and buckle section 31, thickness tapering structure 311, arc-shaped end face 312, second guide section 32, truncated cone structure 321, hook groove 4, long side 41, short side 42, chamfered surface 43, trumpet-shaped opening 5, first ridge 6, second ridge 7.

Detailed Implementation Methods

[0025] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] Please see Figures 1 to 2 As shown, this embodiment provides a pull rope with a hook, including a hook 100. The hook 100 has a first side 101 and a second side 102 arranged opposite to each other. The direction from the first side 101 to the second side 102 is defined as the thickness direction. The end of the hook 100 connected to the rope body 200 is defined as the upper end face 103, and the end away from the rope body 200 is defined as the lower end face 104. The direction from the upper end face 103 to the lower end face 104 is defined as the length direction. The side of the trumpet-shaped opening 5 is defined as the left side face 105, and the side of the extension arm 2 is defined as the right side face 106. The direction from the left side face 105 to the right side face 106 is defined as the width direction.

[0028] Please see Figures 1 to 5As shown, in this embodiment, the hook 100 includes a connecting base 1, an extension arm 2 extending outward from the connecting base 1, and a hook head 3 located at the end of the extension arm 2 for hooking with another hook 100. The connecting base 1, the extension arm 2, and the hook head 3 form a hook groove 4. The connecting base 1 includes a connecting base section 11 perpendicularly connected to the extension arm 2 and a first guide section 12 opposite to the extension arm 2. The hook head 3 includes a hook section 31 perpendicularly connected to the extension arm 2 and a second guide section 32 opposite to the extension arm 2. The first guide section 12 and the second guide section 32 are opposite to each other and form a trumpet-shaped opening 5 on the side away from the extension arm 2. The trumpet-shaped opening 5 can provide initial guidance when the two hooks 100 approach each other. The hook section 31 has a tapered structure 311 that gradually reduces thickness from the connection point to the free end, thus gradually reducing insertion resistance as it approaches the other hook 100 for engagement. The second guide section 32 has a frustum-shaped structure 321 that gradually reduces thickness from the connection point to the flared opening 5, optimizing the guide path and creating a first bulge 6 at the first side 101 and the second side 102. The extension arm 2 gradually decreases in thickness from the connection point towards its center, creating a second bulge 7 at the first side 101 and the second side 102. The formation of the first bulge 6 and the second bulge 7 increases structural strength and provides additional engagement points during hook engagement, improving anti-loosening performance.

[0029] The hook 100 of this utility model with hooked pull rope utilizes three technical features: "a trumpet-shaped opening 5 and a second guide section 32 with a truncated cone structure", "a hook and buckle section 31 with gradually decreasing thickness", and "a first ridge 6 and a second ridge 7". When two hooks need to be hooked together, the two trumpet-shaped openings 5 ​​are slightly aligned, and the hook and buckle section 31 can slide into the hook groove 4. Automatic guidance, alignment and hooking can be achieved without complicated operations, which greatly improves the success rate of connection and the convenience of operation. At the same time, it increases the reliability of anti-detachment under dynamic load. It is particularly suitable for fields with high requirements for connection operation efficiency and reliability, such as bags, outdoor equipment, sports products, and safety protection equipment.

[0030] In this embodiment, the thickness of the first guide segment 12 gradually decreases from its connection point with the connecting base segment 11 to the flared opening 5, forming a frustum structure. Similarly, the first guide segment 12 is designed with a frustum structure, so that it, together with the second guide segment 32, forms a symmetrical, tapering guide channel. This structure further reduces the alignment accuracy required when the two hooks 100 are docked, allowing users to perform blind operation even without direct vision, greatly improving the user experience, and is especially suitable for emergency or rapid operation scenarios.

[0031] In this embodiment, refer to the appendix Figure 3As shown, the hook segment 31 forms an arc-shaped end face 312 on the lower end face 104. The radius of the arc-shaped end face 312 gradually increases from the right side face 106 to the left side face 105. This design makes the end of the hook segment 31 form a smooth, asymmetrical arc structure. Even if it is not perfectly aligned, the arc-shaped end face 312 can still smoothly slide into the hook groove 4 along the trumpet-shaped opening 5 of the other hook 100, effectively reducing jamming and friction, and making the "pull and close" operation experience smoother and more intuitive.

[0032] In this embodiment, the hook groove 4 is a rectangular hook groove 4, the length direction of the extension arm 2 is the long side 41 of the rectangular hook groove 4, and the direction of the extension arm 2 towards the first guide section 12 or the second guide section 32 is the short side 42 of the rectangular hook groove 4. The short side 42 is used to limit the thickness direction of the hook section 31 to prevent the hook section 31 from shaking too much in the thickness direction. The long side 41 is used to limit the movement direction of the hook section 31 in the hook groove 4, while ensuring the hooking depth. At the same time, the rectangular hook groove 4 structure provides a stable hooking space, thereby ensuring the structural stability and anti-torsion performance after hooking.

[0033] In this embodiment, refer to the appendix Figure 4 As shown, the maximum thickness H1 of the hook segment 31 is slightly greater than the length of the short side 42, and the minimum thickness H2 of the hook segment 31 is slightly less than the length of the short side 42. Through the matching design of the thickness and the length of the short side 42, and in conjunction with the thickness tapering structure 311 of the hook segment 31 itself, the thickness tapering structure 311 guides the hook segment 31 to slide smoothly into place during the hooking process. After complete hooking, the maximum thickness H1 and the short side 42 of the hook groove 4 form a tight fit, generating a certain amount of friction and pressure, thereby achieving an "easy to enter, difficult to exit" anti-detachment effect, ensuring both ease of operation and reliability after connection.

[0034] In this embodiment, refer to the appendix Figure 4 As shown, the length H4 of the second guide segment 32 is greater than the length H3 of the hook segment 31, which means that the formed guide channel is longer than the length H3 of the hook segment 31. The longer guide channel can provide a longer correction path in the early stage of the two hooks 100 being connected, allowing for a greater angular tolerance. This ensures that even with a certain angular deviation, the hook segment 31 can be successfully guided to the correct hook position, greatly improving the hook connection success rate and adaptability. At the same time, it can also reduce the risk of accidental disengagement caused by the loosening of the two hook segments 31, further optimizing the reliability of the hook connection and ensuring a more secure hook connection under force.

[0035] In this embodiment, refer to the appendix Figure 4 As shown, in order to further reduce the risk of accidental decoupling, the length H4 of the second guide segment 32 is greater than the length H5 of the first guide segment 12.

[0036] In this embodiment, refer to the appendix Figure 4 As shown, the length H5 of the first guide section 12 is not less than the length H3 of the hook section 31. The hook groove 4 between the first guide section 12 and the extension arm 2 provides clearance space for the hook section 31 to move, ensuring that there is sufficient space on one side of the first guide section 12 to accommodate and guide the hook section 31 of the other hook 100, increasing the degree of freedom of movement or rotation of the hook section 31. This also means that even if the hook is in the wrong direction, the hook section 31 can still temporarily hook with the connecting base section 11 of the other hook 100, exhibiting good fault tolerance and achieving bidirectional, balanced, and smooth hooking.

[0037] In this embodiment, refer to the appendix Figure 3 As shown, the rectangular hook groove 4 has chamfered surfaces 43 formed on both the first side 101 and the second side 102. The chamfered surface 43 design reduces sharp edges, making the contact surface of the two hooks 100 smoother, which not only reduces wear, but also reduces the possibility of accidental disengagement.

[0038] In this embodiment, refer to the appendix Figure 2 As shown, the extension arm 2 gradually decreases in thickness from the connection point with the connecting base segment 11 towards its center, forming grooved surfaces 21 on both sides (first side 101 and second side 102). The grooved surface 21 design effectively reduces material usage while ensuring the structural strength of the extension arm 2, achieving product lightweighting, and also facilitates finger gripping, conforming to ergonomic design.

[0039] In this embodiment, refer to the appendix Figure 5 As shown, it also includes a rope body 200, which is integrally connected to the connecting base 1 of the hook 100. It is usually injection molded, which fundamentally avoids the risks of loosening, falling off or wear and breakage that may exist in traditional sewing or knotting connection methods, and ensures the overall structural strength and durability of the entire pull rope product, which is especially suitable for application scenarios that need to withstand large tensile forces.

[0040] The quick-connect anti-slip hook and pull rope provided in this embodiment achieves the following significant benefits through innovative structural design and precise dimensional matching:

[0041] 1. Extremely simplified hook-locking operation: The core advantage lies in the realization of "one pull and it's locked" automated locking. Users do not need to precisely align or find a specific angle. They only need to bring the two rope hooks 100 close to each other and pull gently. Its unique trumpet-shaped opening 5, double-cone guide section and arc-shaped end face can automatically complete the entire process of correction, guidance and hook-locking. The operation is fast and labor-saving.

[0042] 2. Excellent connection reliability and anti-detachment performance: Through the "easy to enter, difficult to exit" thickness design, the precise dimensional matching of the hook groove 4 and the hook section 31, and the reinforcement and locking effect brought by the double ridge structure, it ensures that the connection stability can be maintained under static, dynamic and even vibration loads after locking, effectively avoiding the hidden danger of accidental detachment and greatly improving safety performance; it can be widely used in the fields of bags, outdoor equipment, safety equipment, etc., and is especially suitable for scenarios that require quick connection and high security.

[0043] 3. Excellent fault tolerance and adaptability: The ingenious size design enables a longer guide channel and asymmetrical design, allowing for larger docking angle deviations, which improves the connection success rate and adaptability in different usage scenarios and environments.

[0044] Example 2

[0045] A zipper including the hooked pull cord as described in Embodiment 1.

[0046] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A pull rope with a hook, characterized in that: The device includes a hook, which comprises a connecting base, an extension arm extending outward from the connecting base, and a hook head located at the end of the extension arm for hooking with another hook. The connecting base, the extension arm, and the hook head form a hook groove. The connecting base includes a connecting base section perpendicularly connected to the extension arm and a first guide section disposed opposite to the extension arm. The hook head includes a hook section perpendicularly connected to the extension arm and a second guide section disposed opposite to the extension arm. The first guide section and the second guide section are disposed opposite to each other and form a trumpet-shaped opening on the side away from the extension arm. The hook segment has a thickness tapering structure from the connection point to the free end; the second guide segment has a frustum structure with a thickness tapering from the connection point to the funnel-shaped opening, so that the connection point forms a first bulge at the first and second sides; the extension arm gradually decreases in thickness from the connection point towards its center, so that the connection point forms a second bulge at the first and second sides.

2. The hooked rope as described in claim 1, characterized in that: The thickness of the first guide segment gradually decreases from the connection point with the connecting base segment to the flared opening, so that the first guide segment forms a frustum structure.

3. The hooked pull rope as described in claim 2, characterized in that: The hook section forms an arc-shaped end face on its lower end face, and the radius of the arc-shaped end face gradually increases from the right side to the left side.

4. The hooked pull rope as described in claim 3, characterized in that: The hook groove is a rectangular hook groove, the length direction of the extension arm is the long side of the rectangular hook groove, and the direction of the extension arm toward the first guide segment or the second guide segment is the short side of the rectangular hook groove.

5. The hooked pull rope as described in claim 4, characterized in that: The maximum thickness of the hook segment is slightly greater than the length of the short side, and the minimum thickness of the hook segment is slightly less than the length of the short side.

6. The hooked pull rope as described in claim 5, characterized in that: The length of the second guide section is greater than the length of the hook section.

7. The hooked rope as described in claim 6, characterized in that: The length of the second guide segment is greater than the length of the first guide segment.

8. The hooked rope as described in claim 7, characterized in that: The rectangular hook groove has chamfered surfaces on both the first and second sides, and the thickness of the extension arm gradually decreases from the connection point with the connecting base section toward its center, so that the extension arm forms groove surfaces on both sides.

9. The hooked pull rope as described in any one of claims 1-8, characterized in that: It also includes a rope, which is integrally connected to the hook's connecting base.

10. A zipper, characterized in that: Includes the hooked pull rope as described in claim 9.

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