Velcro with adjustable length

Abstract

The present invention relates to a Velcro with adjustable length, comprising a nylon hook surface, a hook body, a nylon fleece surface, and nylon fleece, and is characterized in that the end of the nylon hook surface body is detachably connected to a positioning device, the positioning device comprises a positioning plate, a screw connecting hole is provided in the middle of the positioning plate, and detachable linkage components detachably connected to the nylon hook surface body are symmetrically provided at both ends of the positioning plate, the detachable linkage components comprise a first limiting plate, a second limiting plate, a first inner layer, and a second inner layer, a clamping component is provided between the first inner layer and the second inner layer, the clamping component comprises a first oblique tooth and a second oblique tooth, and a fastening component is provided at the other end of the first limiting plate relative to the hinged positioning plate. The beneficial effects of the present invention are: providing a Velcro with easy installation and positioning and adjustable length.

Description

Technical Field

[0001] The invention relates to the technical field of Velcro, and in particular to a Velcro with adjustable length. Background Art

[0002] Velcro, also known as Magic tape or snap fastener, is a commonly used connecting material on clothes, bags, etc., generally includes a nylon hook surface body, the end face of the nylon hook surface body is provided with a hook body, the outside of the nylon hook surface body is detachably connected with a nylon fleece surface body, the nylon fleece surface body is provided with nylon fluff that can be hooked with the hook body. In the used bags, on the one hand, this kind of Velcro is usually of standard specifications and uniform length. For larger or petite users, the length may still not be suitable even through the clothing buckle adjustment, making the bags unsuitable for the users, and the scope of application is relatively limited. Based on this, it is necessary to develop a Velcro that can be extended or shortened by itself. On the other hand, there is no device for facilitating positioning and installation between the general Velcro and bags and other items, which makes it inconvenient to install and position the Velcro. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a hook and loop fastener that is easy to install and position and has adjustable length in view of the above-mentioned deficiencies in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A length-adjustable Velcro fastener comprises a nylon hook surface body, the end surface of the nylon hook surface body is provided with a hook body, the outer side of the nylon hook surface body is detachably connected to a nylon fleece surface body, the nylon fleece surface body is provided with nylon fluff that can be hooked and connected to the hook body, and is characterized in that the end of the nylon hook surface body is detachably connected to a positioning device, the positioning device comprises a positioning plate fixedly connected to one end of the nylon hook surface body, a plurality of groups of screw connection holes are evenly distributed in the middle of the positioning plate, and detachable linkage components detachably connected to the nylon hook surface body are symmetrically provided at both ends of the positioning plate, and the detachable linkage components include a movable hinge connected to one end of the positioning plate The first limit plate is connected to the first limit plate, and the second limit plate is movably hinged at the hinge between the first limit plate and the positioning plate. The first limit plate is fixedly connected to the first inner layer corresponding to the end face of the second limit plate, and the second limit plate is fixedly connected to the second inner layer corresponding to the end face of the first limit plate. A clamping assembly is provided between the first inner layer and the second inner layer, and the clamping assembly includes first oblique teeth respectively arranged on the opposite end faces of the first inner layer and the second inner layer, the nylon hook body is linked with an extension plate toward one end of the positioning plate, and the extension plate is provided with second oblique teeth, and the first limit plate is provided with a fastening assembly relative to the other end of the hinged positioning plate.

[0006] By adopting the above technical scheme, a positioning mechanism that can be detachably connected to the nylon hook surface body is provided, so that the Velcro is easy to be installed and connected to objects such as boxes, and the installation and positioning are convenient. The positioning mechanism includes a positioning plate, which can be directly connected with screws through the screw connection holes in the middle of the positioning plate. The size and length of the screws can be selected according to actual conditions. For example, small screws can be used for box screws. If longer screws can be used for walls or even window frames, the adaptability is higher. The screws are standard parts with high interchangeability, which is convenient for procurement and maintenance. Further, the two ends of the positioning plate are symmetrically hinged with a first limit plate, a second limit plate, a first inner layer fixedly connected to the first limit plate, and a second inner layer fixedly connected to the first limit plate. The second inner layer and the fastening assembly are fixedly connected by the two limit plates, and the length of the Velcro can be increased according to actual conditions. When the length of the Velcro needs to be increased, the fastening assembly is loosened, and the first limit plate and the second limit plate are respectively opened, and the extension plate at one end of the nylon hook body is placed between the first inner layer and the second inner layer, and then the first limit plate and the second limit plate are covered, and finally the fastening assembly is used to cover and tighten the first limit plate and the second limit plate, wherein the oblique teeth between the first inner layer and the second inner layer interact with the oblique teeth on the extension plate respectively, to prevent the nylon hook body and the positioning plate from falling off, thereby improving the tightness of the connection between the nylon hook body and the positioning plate.

[0007] The above-mentioned length-adjustable Velcro can be further configured as: the fastening assembly includes a buckling rod linked to one end of the first limiting plate, the first limiting plate is provided with a support block at the end linked to the buckling rod, hinge shafts are symmetrically provided at both ends of the support block, the buckling rod is linked to the support block through the hinge shaft, the second limiting plate is fixed with a cross bar corresponding to one end of the support block, and the buckling rod is provided with a hook at the other end relative to the linked first limiting plate.

[0008] By adopting the above technical solution, by setting a snapping rod on the first limit plate and a supporting block on the second limit plate, the first limit plate and the second limit plate can be covered and fixedly connected together. When covering, one end of the snapping rod is pressed hard until the hook hooks the supporting block of the second limit plate, and the first limit plate and the second limit plate can be covered. When the Velcro is too long and needs to be disassembled, it is only necessary to pull the snapping rod to make the hook disengage from the supporting block, and then manually open the limit plate. The fastening assembly has a simple structure and is easy to operate.

[0009] The above-mentioned length-adjustable Velcro can be further configured as follows: a flip assembly is provided between the nylon hook body and the extension plate, the flip assembly includes an internal hollow linkage sleeve fixedly arranged on one side of the extension plate, the linkage sleeve is hot-melt connected to the extension plate through a connecting arm, the nylon hook body is connected to a support plate, one end of the support plate is fixedly connected to the nylon hook body, a movable column is provided on the support plate opposite to the end connected to the nylon hook body, a limit platform is provided on the end of the movable column, the diameter of the outer peak of the limit platform is larger than the outer circumferential diameter of the movable column, and the outer circumferential diameter of the movable column is smaller than the inner circumferential diameter of the linkage sleeve.

[0010] The above-mentioned length-adjustable Velcro can be further configured as follows: the nylon hook surface body includes a main belt body, and the two end surfaces of the main belt body are symmetrically and detachably connected with Velcro surfaces, the hook body is located on the Velcro surface, and the main belt body is hot-melt connected to the support plate and one end of the nylon hook surface body is provided with a movable column.

[0011] The above technical scheme is adopted to set a flip assembly, the purpose of which is to make the nylon hook surface body flippable, and further, Velcro surfaces are set on both end surfaces of the nylon hook surface body, so that when the Velcro surface of any end surface of the nylon hook surface body loses its Velcro force after long-term use, the nylon hook surface body can be flipped through the flip assembly and the other side can be used, thereby extending the service life of the nylon hook surface body as a whole; wherein the purpose of setting a limit platform on the outer periphery of the movable column is to prevent the movable column from escaping from the linkage sleeve, and during assembly, a pressure mechanism can be used to force the movable column into the linkage sleeve under a certain temperature rise state, and then cool and shrink it, and the purpose of the outer diameter of the movable column being smaller than the inner diameter of the linkage sleeve is to make the movable column and the linkage sleeve loosely fit, so that the nylon hook surface body can be flipped by itself.

[0012] The above-mentioned length-adjustable Velcro can be further configured as follows: a plurality of groups of thin iron wires are fixedly disposed inside the main belt body.

[0013] By adopting the above technical solution, the thin iron wire can enhance the overall strength and toughness of the nylon hook body, so that the nylon hook body can fit the installation surface according to actual conditions during installation, avoiding excessive gap between the nylon hook body and the installation surface and twisting.

[0014] The above-mentioned length-adjustable Velcro can be further configured as follows: a plurality of groups of hook tips are evenly distributed on the hook body.

[0015] By adopting the above technical solution, the adhesion between the nylon hook surface and the nylon fleece surface can be enhanced.

[0016] The beneficial effects of the present invention are as follows: by adopting the above technical scheme, a positioning mechanism that can be detachably connected to the nylon hook surface body is provided, so that the Velcro is conveniently installed and connected to objects such as boxes, and installation and positioning are convenient, wherein the positioning mechanism includes a positioning plate, which can be directly connected by screws through the screw connection holes in the middle of the positioning plate. The size and length of the screws can be selected according to actual conditions, and the adaptability is high. The screws are standard parts with high interchangeability, which is convenient for procurement and maintenance. Further, the first limiting plate, the second limiting plate, and the first inner plate fixedly connected to the first limiting plate are symmetrically hinged at both ends of the positioning plate. layer, a second inner layer fixedly connected to the second limiting plate, and a fastening component, the length of the Velcro can be increased according to actual conditions; a flip component is set and Velcro surfaces are set on both end surfaces of the nylon hook surface body, the purpose is to make the nylon hook surface body flippable, so that the nylon hook surface body can be flipped through the flip component and the other side can be used, thereby extending the service life of the entire nylon hook surface body; adding a thin iron wire can enhance the overall strength and toughness of the nylon hook surface body, so that the nylon hook surface body can fit the installation surface according to actual conditions during installation, avoiding excessive gaps between the nylon hook surface body and the installation surface and twisting.

[0017] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 It is a front view structural schematic diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 2The illustrated embodiment of a length-adjustable Velcro comprises a nylon hook surface body 1, wherein the end surface of the nylon hook surface body 1 is provided with a hook body 2, the outer side of the nylon hook surface body 1 is detachably connected to a nylon hair surface body, the nylon hair surface body is provided with nylon fluff that can be hooked and connected with the hook body 2, the end of the nylon hook surface body 1 is detachably connected to a positioning device, the positioning device comprises a positioning plate 4 fixedly connected to one end of the nylon hook surface body 1, the positioning plate 4 is provided with a screw connection hole 41, and the two ends of the positioning plate 4 are symmetrically provided with a detachable linkage component detachably connected to the nylon hook surface body 1, the detachable linkage component comprises a first limiting plate 5 movably hinged to one end of the positioning plate 4, the first limiting plate 5 movably hinged to one end of the positioning plate 4, and the first limiting plate 5 movably hinged to one end of the positioning plate 4. A second limiting plate 6 is movably hinged at the hinged joint of a limiting plate 5 and a positioning plate 4. The first limiting plate 5 is fixedly connected to a first inner layer 51 corresponding to the end face of the second limiting plate 6. The second limiting plate 6 is fixedly connected to a second inner layer 61 corresponding to the end face of the first limiting plate 5. A clamping assembly is provided between the first inner layer 51 and the second inner layer 61. The clamping assembly includes first oblique teeth 52 respectively arranged on the opposite end faces of the first inner layer 51 and the second inner layer 61. An extension plate 7 is linked to one end of the nylon hook body 1 toward the positioning plate 4. The extension plate 7 is provided with second oblique teeth 71. A fastening assembly is provided at the other end of the first limiting plate 5 relative to the hinged positioning plate 4.

[0022] The fastening assembly includes a buckling rod 8 linked to one end of the first limiting plate 5, the first limiting plate 5 is provided with a support block 54 at one end linked to the buckling rod 8, the support block 54 has hinge shafts 53 symmetrically provided at both ends, the buckling rod 8 is linked to the support block 54 through the hinge shaft 53, the second limiting plate 6 is fixedly provided with a cross bar 62 at one end corresponding to the support block 54, and the buckling rod 8 is provided with a hook 81 at the other end relative to the linked first limiting plate 5.

[0023] A flip assembly is provided between the nylon hook body 1 and the extension plate 7, and the flip assembly includes an internal hollow linkage sleeve 73 fixedly arranged on one side of the extension plate 7, and the linkage sleeve 73 is hot-melt connected to the extension plate through a connecting arm 72. The nylon hook body 1 is connected to a support plate 3, and one end of the support plate 3 is fixedly connected to the nylon hook body 1. The support plate 3 is provided with a movable column 31 at the end connected to the nylon hook body 1, and a limit platform 32 is provided at the end of the movable column 31. The diameter of the outer peak of the limit platform 32 is larger than the outer diameter of the movable column 31, and the outer diameter of the movable column 31 is smaller than the inner diameter of the linkage sleeve 73.

[0024] The nylon hook surface body 1 comprises a main belt body 11, and both end surfaces of the main belt body 11 are symmetrically and detachably connected with Velcro surfaces 12, the hook body 2 is located on the Velcro surface 12, the main belt body 11 is hot-melt connected with the support plate 3, and a movable column 31 is provided at one end of the nylon hook surface body, two groups of thin iron wires 13 are fixed inside the main belt body 11, and three groups of hook tips 21 are evenly distributed on the hook body 2.

Claims

1. A length-adjustable hook and loop fastener, comprising a nylon hook surface body, the end surface of the nylon hook surface body is provided with a hook body, the outer side of the nylon hook surface body is detachably connected to a nylon fleece surface body, the nylon fleece surface body is provided with nylon fluff that can be hooked and connected with the hook body, characterized in that: The end of the nylon hook body is detachably connected to a positioning device, and the positioning device includes a positioning plate fixedly connected to one end of the nylon hook body, and a plurality of screw connection holes are evenly distributed in the middle of the positioning plate, and the two ends of the positioning plate are symmetrically provided with a detachable linkage component detachably connected to the nylon hook body. The detachable linkage component includes a first limit plate movably hinged to one end of the positioning plate, and the first limit plate and the positioning plate are hinged at the same time. The first limit plate is fixedly connected to the first inner layer corresponding to the end face of the second limit plate, and the second limit plate is fixedly connected to the second inner layer corresponding to the end face of the first limit plate. A clamping component is provided between the first inner layer and the second inner layer, and the clamping component includes first oblique teeth respectively arranged on the opposite end faces of the first inner layer and the second inner layer. The nylon hook body is linked with an extension plate toward one end of the positioning plate, and the extension plate is provided with a second oblique tooth. The first limit plate is provided with a The locking plate is fixedly provided with a locking plate at one end thereof, and the locking plate is secured on a pivotal position with the first locking plate being secured on a cam face and on the second end thereof.

2. The length-adjustable hook and loop fastener according to claim 1, characterized in that: The nylon hook surface body comprises a main belt body, and both end surfaces of the main belt body are symmetrically and detachably connected with Velcro surfaces, the hook body is located on the Velcro surfaces, the main belt body is hot-melt connected with a support plate, and a movable column is provided at one end of the support plate away from the nylon hook surface body.

3. The length-adjustable hook and loop fastener according to claim 2, characterized in that: A plurality of groups of thin iron wires are fixedly arranged inside the main belt body.

4. The length-adjustable hook and loop fastener according to claim 1, characterized in that: The hook body is evenly distributed with a plurality of groups of hook tips.

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