An improved quick-adjusting cord buckle

Abstract

This utility model relates to the field of quick-adjusting cord buckles, specifically disclosing an improved quick-adjusting cord buckle. It includes a buckle housing and a clamping adjustment structure disposed on the housing. The buckle housing has an inlet for introducing the cord and an outlet for exiting the cord. Corresponding to the outlet, the buckle housing also has a shortening adjustment structure for reducing the remaining cord length. The shortening adjustment structure is configured to allow the remaining cord to become zigzag. This quick-adjusting cord buckle with this structure has the function of adjusting the remaining length and also improves the clamping tightness of the cord.

Description

Technical Field

[0001] This utility model relates to the field of quick-tightening rope buckles for ropes and straps. Background Technology

[0002] Quick-release drawstrings are commonly used to tighten or loosen shoe laces, clothing drawstrings, and bag drawstrings. Currently, there are various product structures available on the market, differing in shape, size, ease of adjustment, and stability after adjustment. The choice usually depends on the specific needs. Existing quick-release drawstrings for shoe lace tightening commonly fall into two main categories: the first is an automatic drawstring with a winch function that can be operated with one hand; this type is complex and has high production costs. The second type requires two hands to tighten; this type is a clamping drawstring, which is relatively simple, easy to produce, and inexpensive.

[0003] The second type of quick-release lace buckle mentioned above is currently mostly used in casual shoes for children and adults. This is mainly due to issues with the tightness of the quick-release lace buckle and the remaining length of the laces after adjustment. Firstly, regarding tightness, if the tightness is insufficient, athletic shoes may loosen due to foot movement, causing the shoe to easily slip off the foot or creating a safety hazard. Secondly, regarding the remaining length, the laces should not be too long, otherwise, they may easily snag, posing a safety risk. Conversely, a short remaining length results in a limited range of adjustment, making it unsuitable for shoes worn by people of different body types, with different tightening habits, or those with specific tightness requirements. Therefore, this type of lace buckle is commonly used in casual shoes for children and adults. However, the tightness and remaining length of the clamp-type quick-release lace buckle still need improvement to enhance its applicability. Utility Model Content

[0004] The purpose of this utility model is to provide an improved quick-adjusting cord buckle with a structure that allows for adjusting the remaining length and enhances clamping tightness.

[0005] To achieve the above objectives, the technical solution of this utility model is: an improved quick-adjusting tension rope buckle, including a buckle housing and a clamping adjustment structure disposed on the housing. The buckle housing is provided with an inlet for introducing the rope and an outlet for leading out the rope. The buckle housing is also provided with a shortening adjustment structure for shortening the remaining rope length corresponding to the outlet. The shortening adjustment structure is configured to make the remaining rope bend.

[0006] The shortening adjustment structure includes a shortening adjustment sleeve with a retractable and deformable structure. One end of the shortening adjustment sleeve is an inlet for the rope to pass through, and the other end is an outlet for the rope to exit. The inlet and outlet of the shortening adjustment sleeve form a tortuous channel.

[0007] The shortening adjustment sleeve is a one-piece molded plastic structure.

[0008] The meandering channel has a tooth-like structure, and its bending direction is left and right.

[0009] The shortening and adjustment structure includes a lower fixed member fixedly connected to the housing at one end and an upper movable member corresponding to the lower fixed member. The lower fixed member and the upper movable member are respectively provided with partitions at intervals along the outlet direction. The upper movable member and the lower fixed member are provided with a fastening structure that can be quickly opened and closed. When the lower fixed member and the upper movable member are fastened, the partitions of the two form a structure that is interlaced and intermittent with each other, and a tortuous channel is formed between the partitions.

[0010] The lower fixed member and / or the upper movable member are also provided with a structure that can cooperate with each other to clamp the rope when the lower fixed member and the upper movable member are engaged.

[0011] The fastening structure includes a movable connecting structure, a first fastening part, a second fastening part, and an elastic element. The movable connecting structure is a movable connecting structure disposed between the upper movable part and the lower fixed part or between one end of the upper movable part and the fastening housing. The first fastening part and the second fastening part are configured to hook each other and are respectively disposed on the lower fixed part and the upper movable part. The elastic element is configured to push the upper movable part away from the lower fixed part and expand the tortuous channel when the fastening structure is unfastened.

[0012] The buckle housing is used to adjust the tightness of shoelaces. The bottom surface of the buckle housing is designed to fit against the shoe upper. On opposite sides of the buckle housing, there are anti-rollover pressure plates extending outward below the inlet.

[0013] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The above structural setting achieves the function of adjusting the remaining length by setting a shortening adjustment structure corresponding to the outlet of the elastic cord buckle. It is particularly suitable for use in shoelaces. Specifically, the shortening adjustment structure is constructed to make the remaining cord into a zigzag shape. The zigzag shape can help reduce the size of the component design. In addition, the length of the zigzag can achieve a longer cord shortening space. Through further design, the shortening adjustment structure can also have a certain tightness on the remaining section, thereby improving the clamping effect of the elastic cord buckle.

[0014] The aforementioned shortening adjustment structure is further configured as a shortening adjustment sleeve with a stretchable and deformable structure (as achieved through rubber material as described above), which can effectively shorten the remaining length. It has deformability, allowing for more usable length when the cord is loosened, and its simple structure facilitates manufacturing. Another type of partition structure with interlaced spacing can also achieve the desired effect and significantly improve clamping tightness. The aforementioned further structural configurations better achieve the objectives and effects of this invention. Furthermore, with the shortening adjustment structure, the elastic cord buckle of this invention allows for a longer remaining cord length. When applied to shoelaces, this significantly increases the range of shoelace adjustment. The increased range and improved clamping tightness make it suitable for adjusting the laces of more types of shoes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of an improved quick-adjusting elastic cord buckle according to this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of a second embodiment of an improved quick-adjusting elastic cord buckle related to this utility model.

[0017] Figure 3 This is a schematic diagram of another angle of an embodiment of an improved quick-adjusting elastic cord buckle related to this utility model.

[0018] Figure 4 yes Figure 3 A schematic diagram of the changing state structure.

[0019] In the picture:

[0020] 1. Housing; 11. Inlet; 12. Outlet; 13. Anti-tilting pressure plate; 2. Clamping adjustment structure;

[0021] Shortening adjustment structure 3; Shortening adjustment sleeve 31; Inlet 32; Outlet 33;

[0022] 34. Zigzag channel; 35. Lower fixed part; 36. Upper movable part; 37. Partition plate; 38. Clamping block;

[0023] Fastening structure 39; connecting structure 391; first fastening part 392, second fastening part 393;

[0024] Shoelaces 10. Detailed Implementation

[0025] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0026] This embodiment discloses an improved quick-adjustment cord buckle, such as... Figure 1 , Figure 2 and Figure 3 , Figure 4 As shown, this invention is primarily described using shoelace adjustment in shoes. Label 10 in the figure represents the shoelace, specifically the cord mentioned above. It includes a buckle housing 1 and a clamping adjustment structure 2 mounted on the housing 1. Since this embodiment does not modify the clamping adjustment structure, a detailed structural description of this part is omitted, and it is not shown in detail in the accompanying drawings. The clamping adjustment structure 2 adopts a publicly available technical structure, but other structures capable of adjusting tightness can also be used. Label 2 in the figure represents the button of the clamping adjustment structure. The buckle housing 1 typically has an inlet 11 for the two ends of the shoelace 10 (which usually have sufficient length for tightness adjustment) pulled out after being threaded through the shoelace eyelet on the shoe upper, and an outlet 12 for the two ends to exit. The inlet 11 and outlet 12 can be a single, shared inlet or two separate inlets, depending on the structure of the clamping adjustment structure 2; this is not specifically limited here. The main improvement of this invention lies in the following structural design, which will be described in detail below with reference to the accompanying drawings.

[0027] The buckle housing 1 is also provided with a shortening adjustment structure 3 for shortening the remaining length of the end of the shoelace 10 corresponding to the outlet 12. Specifically, the shortening adjustment structure 3 is configured to make the remaining end of the shoelace 10 after it is tied into a zigzag shape. The zigzag length design shortens the remaining end of the longer shoelace 10. This structure also helps to reduce the size of the component and the space required for the shortening function. The remaining end of the shoelace 10 is in a zigzag shape, which can further help to clamp and prevent loosening. For components without a lifting and clamping function, the structure to achieve this function can be disregarded. The following discloses two embodiments of the shortening adjustment structure 3 to achieve the required functions.

[0028] Example 1

[0029] The shortening adjustment structure 3 includes a shortening adjustment sleeve 31 with a stretchable and deformable structure. One end of the sleeve is a corresponding inlet 32 ​​for the end of the shoelace 10 to be inserted, and the other end is an outlet 33 for the end of the shoelace 10 to be exited. The aforementioned tortuous structure is a tortuous channel 34 between the inlet 32 ​​and the outlet 33 within the shortening adjustment sleeve 31. This tortuous channel 34 can automatically shorten the remaining length of the end of the shoelace 10, thus solving the problem of excessive length causing adverse effects. In addition, to avoid the shortened length from not providing normal tightness, the shortening adjustment sleeve 31 has a stretchable and deformable structure. This structure can be achieved through material selection. For example, plastic materials have compressible and stretchable recovery properties, which can achieve the desired effect. Furthermore, plastic materials are conducive to one-piece molding structures, which are simple in structure and easy to manufacture.

[0030] Furthermore, in this embodiment, the tortuous channel 34 has a toothed structure, with its bending direction being left and right. Here, left and right refers to bending in a direction tending towards the same plane. This structural design allows the shortening adjustment structure 3 to have a flattened component structure, facilitating use and operation, improving appearance design, and making it easier to fit against the shoe upper. Regarding fitting against the shoe upper, to enhance this effect and prevent the elastic cord from tilting upwards and posing a risk of being snagged, the bottom surface of the buckle housing 1 can be further designed to fit against the shoe upper. Additionally, on opposite sides of the buckle housing 1, below the inlet 11, outwardly extending anti-flip pressure plates 13 are provided. Figure 1 As shown, with this structural design, the elastic cord buckle can achieve a basic fit when in use because its bottom surface adapts to and adheres to the shoe upper. At the same time, the anti-rollover pressure plate 13 is pressed down by the shoelace 10, which also increases the pressing area of ​​the shoelace 10, allowing the buckle housing 1 to better adapt to and adhere to the shoe upper, making it less likely for the whole to roll up or tilt.

[0031] The aforementioned shortening adjustment sleeve 31, if it requires an increased clamping effect, can achieve the desired clamping increase by appropriately setting the cross-sectional area of ​​the zigzag channel 34 and the thickness of the shoelace 10, or by setting other zigzag channel 34 structures accordingly. This structure has a slowing effect on the automatic shortening adjustment speed. For applications where increased clamping is not required, it is advisable to set the zigzag channel 34 to allow the shoelace 10 to shorten smoothly and adjust, resulting in smooth and fast automatic shortening adjustment and more user-friendly operation. Therefore, the aforementioned structure is also more suitable for applications of elastic cords that do not require increased clamping.

[0032] Example 2

[0033] The differences from Embodiment 1 above are as follows: Figure 2 and Figure 3As shown, the shortening adjustment structure 3 includes a lower fixing member 35 fixedly connected to the buckle housing 1 at one end and an upper movable member 36 corresponding to the lower fixing member 35. As shown in the figure, the two components each have a main housing with a U-shaped groove in cross-section. The concave surfaces of the U-shaped grooves of the two components face each other, and the length direction of the U-shaped groove is correspondingly set with the outlet direction of the outlet 12. The movable member 36 can be connected to the buckle housing 1 or the lower fixing member 35 through a connecting structure. As shown in the figure, it is connected in a hinged and rotatable manner. There are many ways to implement this. This embodiment provides an implementation method in the following content, specifically a hinged method with the buckle housing 1. Continuing with the description of other structures, the lower fixing member 35 and the upper movable member 36 are respectively provided with partitions 37 at intervals along the outlet 12. A fastening structure 39 for quick opening and closing is provided between the upper movable member 35 and the lower fixing member 36. When the lower fixing member 35 and the upper movable member 36 are fastened, the partitions 37 of the two form a structure that is interlaced and intermittent, and a tortuous channel 34 is formed between the partitions 37. The fastening structure 39 is mainly used to maintain the structural stability of the tortuous channel 34, so as to stably maintain the length of the end of the shortened shoelace 10. The number, spacing, and insertion depth of the partitions 37 can be designed according to the shortening adjustment amount. For a longer amount of shortening, it can be achieved by designing the height and insertion depth of the partitions 37. The height and spacing width of the partitions 37 can be designed in combination with the thickness of the shoelaces in the application product to achieve the effect of improving clamping tightness mentioned above. It should be noted that when using partition 37 to increase clamping tightness, the upper movable part 36 should be in a fully disengaged, staggered state relative to the lower fixed part 35 when the latch is open. Otherwise, it may slow down the shortening speed. Figure 3 The state shown can be improved by increasing the downward pressure of the buckle to speed up the shortening process. However, in other states where the laces are not completely separated from their interlaced shape, there may be some tightness that affects the smoothness of loosening the shoelaces. In this embodiment, to further achieve smooth operation of the buckle and also improve the clamping tightness, as shown... Figure 3 As shown in the figure, the lower fixing member 35 and / or the upper movable member 36 are also constructed with a structure that can cooperate with each other to clamp the shoelace 10 when the lower fixing member 35 and the upper movable member 36 are engaged. In the figure, the lower fixing member 35 and the upper movable member 36 are respectively provided with clamping blocks 38 that protrude to the outlet 12. Figure 4 As shown, the clamping block 38 is preferably positioned close to the outlet 12, which can significantly improve the clamping effect and ensure stable clamping.

[0034] The fastening structure 39 disclosed in this embodiment includes a movable connecting structure 391, a first fastening part 392, a second fastening part 393, and an elastic member (not visible in the figure). The movable connecting structure 391 is a movable connecting structure disposed between the upper movable member 36 and the lower fixed member 25 near one end of the fastening housing, or between one end of the upper movable member 36 and the fastening housing 1. In the figure, it is disposed between one end of the upper movable member 36 and the fastening housing 1. The structure connected to the lower fixed member 35 is further implemented by combining the following fastening structure (more embodiments are not listed here). The first fastening part 392 and the second fastening part The components 393 are constructed with interlocking structures and are respectively disposed on the lower fixed member 35 and the upper movable member 36. Various known interlocking structures exist, which are easily implemented by those skilled in the art and are not specifically limited here. The elastic element is configured to push the upper movable member 36 away from the lower fixed member 35 and expand the tortuous channel 34 when the fastening structure 39 is open. A hinge, such as a torsion spring, is used at one end of the upper movable member 36 to the fastening housing 1. When the fastening is open, it can push open, releasing the tortuous interlocking and allowing the two clamping blocks 38 to open and release the clamping. This structural design increases the spacing between the partitions 37, allowing the tortuous channel 34 to smoothly shorten the remaining portion of the shoelace.

[0035] The structural design of this embodiment has the advantages of simple structure, easy manufacturing, convenient product implementation, simple and convenient operation, and fast automatic shortening of the remaining end section. In addition, other structural designs of the above embodiment one (such as the bottom surface of the buckle shell being adapted to fit against the shoe upper and the anti-rollover pressure plate) can also be applied to the structure of this embodiment, and will not be described in detail here.

[0036] 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. An improved quick-adjusting cord buckle, comprising a buckle housing and a clamping adjustment structure disposed on the housing, wherein the buckle housing is provided with an inlet for introducing a cord and an outlet for exiting the cord, characterized in that, The buckle housing is also provided with a shortening adjustment structure for shortening the length of the remaining rope at the outlet. The shortening adjustment structure is configured to make the remaining rope bend into a zigzag shape.

2. The improved quick-adjusting tension cord buckle as described in claim 1, characterized in that, The shortening adjustment structure includes a shortening adjustment sleeve with a retractable and deformable structure. One end of the shortening adjustment sleeve is an inlet for the rope to pass through, and the other end is an outlet for the rope to exit. The inlet and outlet of the shortening adjustment sleeve form a tortuous channel.

3. An improved quick-adjusting tension cord buckle as described in claim 2, characterized in that, The shortening adjustment sleeve is a one-piece molded plastic structure.

4. An improved quick-adjusting cord buckle as described in claim 2 or 3, characterized in that, The meandering channel has a tooth-like structure, and its bending direction is left and right.

5. An improved quick-adjusting tension cord buckle as described in claim 1, characterized in that, The shortening and adjustment structure includes a lower fixed member fixedly connected to the housing at one end and an upper movable member corresponding to the lower fixed member. The lower fixed member and the upper movable member are respectively provided with partitions at intervals along the outlet direction. The upper movable member and the lower fixed member are provided with a fastening structure that can be quickly opened and closed. When the lower fixed member and the upper movable member are fastened, the partitions of the two form a structure that is interlaced and intermittent with each other, and a tortuous channel is formed between the partitions.

6. An improved quick-adjusting tension cord buckle as described in claim 5, characterized in that, The lower fixed member and / or the upper movable member are also provided with a structure that can cooperate with each other to clamp the rope when the lower fixed member and the upper movable member are engaged.

7. An improved quick-adjusting tension cord buckle as described in claim 5 or 6, characterized in that, The fastening structure includes a movable connecting structure, a first fastening part, a second fastening part, and an elastic element. The movable connecting structure is a movable connecting structure disposed between the upper movable part and the lower fixed part or between one end of the upper movable part and the fastening housing. The first fastening part and the second fastening part are configured to hook each other and are respectively disposed on the lower fixed part and the upper movable part. The elastic element is configured to push the upper movable part away from the lower fixed part and expand the tortuous channel when the fastening structure is unfastened.

8. An improved quick-adjusting tension cord buckle as described in claim 5 or 6, characterized in that, The buckle housing is used to adjust the tightness of shoelaces. The bottom surface of the buckle housing is designed to fit against the shoe upper. The inlets are located on opposite sides of the buckle housing. On opposite sides of the buckle housing, there are anti-rollover pressure plates extending outward below the inlets.

9. An improved quick-adjusting cord buckle as described in claim 2 or 3, characterized in that, The buckle housing is used to adjust the tightness of shoelaces. The bottom surface of the buckle housing is designed to fit against the shoe upper. On opposite sides of the buckle housing, there are anti-rollover pressure plates extending outward below the inlet.

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