A double safety waistband structure

Abstract

The application discloses a double-insurance waist structure, which comprises a first insurance structure for being sleeved on a waist of a human body, wherein the first insurance structure is in a ring shape; and a second insurance structure, wherein the second insurance structure comprises an adjusting belt, a locking buckle and locking grooves; one end of the adjusting belt is sewn on the first insurance structure; the locking buckle is arranged on the second insurance structure; the locking grooves are multiple and are arranged on the first insurance structure in a spaced mode; and the locking buckle can be connected with any one of the locking grooves. The double-insurance waist structure realizes elastic adaptation and mechanical locking in combination through the first insurance structure and the second insurance structure, avoids the problem that a traditional elastic waist is prone to relaxation, and overcomes the defect that a magic tape or a button structure is prone to loosening. The rigid connection of the locking buckle and the locking grooves can bear greater tension and prevent the waist from being accidentally loosened.

Description

Technical Field

[0001] This utility model relates to the field of clothing accessories, specifically to a double-safety waistband structure. Background Technology

[0002] In the garment manufacturing industry, the waistband structure, as a core functional component of lower garments such as trousers and skirts, directly affects the comfort, stability, and adaptability of the garment. Traditional waistband structures are mainly divided into the following categories: Elastic waistband structures achieve adaptive waist adjustment through a single elastic material, offering advantages such as low cost and simple manufacturing. However, elastic materials are prone to elasticity loss due to tensile fatigue during long-term use, resulting in a loose waistband and reduced fit. Especially during large movements such as bending over or lifting the legs, the elastic waistband is prone to twisting or shifting due to uneven force, causing discomfort and even the risk of exposure. Furthermore, the single elastic element is prone to falling off in emergency situations. Button / hook fastening structures achieve fixation by combining metal or plastic fasteners with eyelets on the waistband. The adjustment precision is limited by the spacing of the eyelets, making it difficult to adapt to subtle changes in waist size. Moreover, the fasteners are prone to wear and tear during repeated opening and closing, leading to locking failure. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, this application provides a double-safety waist head structure.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: a double-safety waistband structure, comprising: a first safety structure fitted onto the waist of a human body, the first safety structure being a ring structure; and a second safety structure, the second safety structure comprising an adjustment belt, a locking buckle, and a locking groove, one end of the adjustment belt being sewn onto the first safety structure, the locking buckle being disposed on the second safety structure, and multiple locking grooves being spaced apart on the first safety structure, the locking buckle being connectable to any one of the locking grooves.

[0005] In some embodiments of this utility model, the first safety structure includes a waist panel and a lining, with the waist panel covering the lining and the waist panel sewn onto the lining.

[0006] In some embodiments of this utility model, the aforementioned lining is an elastic structure.

[0007] In some embodiments of this utility model, the locking buckle includes a base, a locking pin, a spring, and a driving block. The base has a receiving cavity for accommodating the locking pin and the spring. The spring is disposed at the bottom of the receiving cavity, and the locking pin is disposed on the spring. A sliding groove is provided on the outer wall of the base. The sliding groove has a sliding space communicating with the receiving cavity. The driving block is slidably disposed in the sliding groove. The driving block passes through the sliding space and is connected to the locking pin. The driving block is used to drive the locking pin to slide in the receiving cavity.

[0008] In some embodiments of this utility model, the side of the base that extends into the locking groove is provided with an arc-shaped chamfer structure.

[0009] In some embodiments of this utility model, the drive block is provided with an anti-slip layer, which is a plurality of arc-shaped protrusions.

[0010] In some embodiments of this utility model, the side wall of the locking groove is provided with a corresponding locking hole, and the spring can push the locking pin into the locking hole.

[0011] Beneficial effects:

[0012] 1. By combining elastic adaptation with mechanical locking through a first and second safety structure, the design avoids the problem of traditional elastic waistbands easily loosening and overcomes the shortcomings of Velcro or button structures that are prone to loosening. The rigid connection between the locking buckle and the locking groove can withstand greater tensile force, preventing the waistband from accidentally loosening.

[0013] 2. Multiple locking grooves offer multiple positions to adapt to slight changes in waist size and accommodate changes in waist circumference. The elastic lining continuously deforms during activity to maintain a close fit between the waistband and waist, reducing the risk of shifting. It is especially suitable for occasions requiring frequent movement, such as sports pants and maternity wear. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural illustration of an embodiment of this application. Figure 1 ;

[0016] Figure 2 This is a top view of an embodiment of this application;

[0017] Figure 3 for Figure 2 Sectional view of section AA;

[0018] Figure 4 This is a schematic diagram of the locking groove structure according to an embodiment of this application;

[0019] Figure 5 This is a schematic diagram of the locking latch structure according to an embodiment of this application;

[0020] Figure 6 This is a cross-sectional view of the locking latch according to an embodiment of this application.

[0021] In the diagram: 1-First safety structure; 101-Waist surface; 102-Clamping; 2-Adjusting belt; 3-Locking buckle; 301-Base; 302-Locking pin; 303-Spring; 304-Drive block; 4-Locking groove; 5-Slide groove; 6-Receiving cavity; 7-Sliding space; 8-Chamfered structure; 9-Anti-slip layer; 10-Key hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example

[0028] Please refer to Figures 1-6 This embodiment provides a double-safety waistband structure, including: a first safety structure 1 fitted onto the waist of a person, the first safety structure 1 being a ring structure; and a second safety structure, the second safety structure including an adjustment belt 2, a locking buckle 3, and a locking groove 4, one end of the adjustment belt 2 being sewn onto the first safety structure 1, the locking buckle 3 being disposed on the second safety structure, and multiple locking grooves 4 being spaced apart on the first safety structure 1, the locking buckle 3 being able to connect to any of the locking grooves 4.

[0029] In this embodiment, the first safety mechanism is directly fitted onto the waist of the human body, and the ring structure forms the first layer of lower garment protection on the waist. In addition, the first safety structure 1 can also be used to install the second safety structure, so that the two can work together to achieve stable wearing of the lower garment.

[0030] In this embodiment, one end of the adjustment strap 2 is fixed to the first safety structure 1, while the other end is freely movable. Users can adjust the overall waistband circumference by stretching or contracting the adjustment strap 2 to accommodate different waist sizes. A locking buckle 3 is installed at the end of the adjustment strap 2 and inserted into any locking slot 4 on the first safety structure 1 to achieve a secure fixation, thus providing double fixation to the waistband and greatly improving the stability of wearing the lower garment.

[0031] Furthermore, the elastic clip 102 of the first safety structure 1 continuously provides basic wrapping force during human activity, preventing the waistband from shifting due to external forces. The locking buckle 3 of the second safety structure, combined with the locking groove 4, forms a rigid fixation, preventing the adjustment strap 2 from slipping accidentally due to friction or load. Even if the elastic clip 102 of the first safety structure 1 experiences slight fatigue due to long-term use, the mechanical locking of the second safety structure still ensures the waistband's stability, extending the overall service life.

[0032] Please refer to Figures 1-6 In some embodiments of this example, the first safety structure 1 includes a waist surface 101 and a lining 102, with the waist surface 101 covering the lining 102 and sewn onto the lining 102.

[0033] In this embodiment, the aforementioned first safety structure 1 is composed of an outer waist surface 101 and an inner elastic lining 102, forming a ring-shaped wrapping structure. The lining 102 is made of elastic material, which adapts to the dynamic changes in waist circumference through deformation during human activity, avoiding sagging caused by fatigue of a single elastic structure. The waist surface 101 and the lining 102 are sewn together, and the ring structure evenly distributes the pressure on the waist, reducing local pressure and preventing twisting or displacement of the waist.

[0034] Please refer to Figure 1 In some embodiments of this example, the aforementioned lining 102 is an elastic structure.

[0035] In this embodiment, the lining 102 is a spandex blend fabric. Spandex fibers have excellent elastic recovery capabilities, with an elastic elongation rate of 500%-800%, far exceeding that of natural fibers. After blending, the fabric can quickly rebound to its original shape after stretching, preventing the waistband from loosening or deforming due to long-term use. The spandex blend fabric can freely stretch and contract with the movement of the human waist, always maintaining a close fit to the waist and reducing the risk of displacement. For example, when standing up after strenuous exercise or sitting for a long time, the waistband can still remain stable, avoiding the loosening problem caused by fatigue in traditional elastic waistbands.

[0036] Please refer to Figures 4-6 In some embodiments of this example, the locking buckle 3 includes a base 301, a locking pin 302, a spring 303, and a driving block 304. The base 301 has a receiving cavity 6 for accommodating the locking pin 302 and the spring 303. The spring 303 is disposed at the bottom of the receiving cavity 6, and the locking pin 302 is disposed on the spring 303. A sliding groove 5 is provided on the outer wall of the base 301. The sliding groove 5 has a sliding space 7 communicating with the receiving cavity 6. The driving block 304 is slidably disposed in the sliding groove 5. The driving block 304 passes through the sliding space 7 and is connected to the locking pin 302. The driving block 304 is used to drive the locking pin 302 to slide in the receiving cavity 6.

[0037] In this embodiment, pressing the drive block 304 causes it to slide along the groove 5 of the base 301, which in turn causes the locking pin 302 to compress the spring 303 and retract into the receiving cavity 6 of the base 301. After inserting the locking buckle 3 into the locking groove 4, releasing the drive block 304 causes the spring 303 to return to its original position and push the locking pin 302 into the lock hole 10 on the side wall of the locking groove 4, thus completing the locking. Pressing the drive block 304 again causes the locking pin 302 to retract into the base 301, allowing the adjusting belt 2 to move freely. Multiple locking grooves 4 are spaced apart on the first safety structure 1, allowing the user to select the most suitable locking position according to their waist circumference for precise adjustment.

[0038] Please refer to Figure 5 In some embodiments of this example, the base 301 is provided with an arc-shaped chamfer structure 8 on one side extending into the locking groove 4.

[0039] In this embodiment, the base 301 is provided with an arc-shaped chamfer structure 8 on one side of the locking groove 4, with an arc radius of 0.5-2mm, forming a smooth transition surface.

[0040] In use, when the user brings the locking buckle 3 close to the locking groove 4, the arc-shaped chamfer of the base 301 first contacts the entrance edge of the locking groove 4. Due to the directionality of the arc surface, even if there is a slight misalignment between the locking buckle 3 and the locking groove 4, the arc structure can guide the base 301 to move towards the center line of the locking groove 4 through surface sliding.

[0041] It should be noted that the rounded chamfer transforms the right-angled edge of the locking groove 4 entrance into a smooth transition, preventing a rigid collision between the front end of the base 301 and the edge of the locking groove 4, thereby reducing frictional resistance during insertion. Experimental data show that the rounded chamfer structure 8 can reduce the insertion force by approximately 30%-50%.

[0042] Please refer to Figure 5 In some embodiments of this example, the drive block 304 is provided with an anti-slip layer 9, which is a plurality of arc-shaped protrusions.

[0043] In this embodiment, the surface of the drive block 304 is provided with multiple arc-shaped protrusions, each with a height of 0.2-0.8 mm and a spacing of 1-3 mm, forming a regular anti-slip texture. When the arc-shaped protrusions come into contact with the user's finger, the enhanced friction at the microscopic level achieves an anti-slip effect, while avoiding the pressure caused by sharp edges on the finger. The arc-shaped protrusion structure changes the contact between the drive block 304 and the finger from a smooth surface to a textured surface, significantly increasing the static friction coefficient. The protrusion structure disperses the concentrated force of finger pressure to multiple contact points, reducing local pressure.

[0044] Please refer to Figure 3 In some embodiments of this example, the sidewall of the locking groove 4 is provided with a lock hole 10, and the spring 303 can push the locking pin 302 into the lock hole 10.

[0045] In this embodiment, the lock hole 10 on the side wall of the locking groove 4 is rigidly connected to the lock pin 302 inside the locking buckle 3. When the locking buckle 3 is inserted into the locking groove 4, the spring 303 pushes the lock pin 302 into the lock hole 10, forming a mechanical interlock.

[0046] During initial insertion, the user presses the drive block 304, causing the locking pin 302 to retract into the base 301's receiving cavity 6, allowing the locking buckle 3 to slide into the locking groove 4. When the locking buckle 3 moves to the target locking groove 4, the user releases the drive block 304, and the spring 303 pushes the locking pin 302 through the opening in the side wall of the base 301 and into the lock hole 10 in the side wall of the locking groove 4, completing the mechanical locking. The contact surface between the locking pin 302 and the lock hole 10 is a combination of a cylindrical surface and a circular hole surface, ensuring uniform stress distribution and preventing structural deformation caused by local stress concentration. When the user presses the drive block 304 again, the locking pin 302 retracts into the base 301's receiving cavity 6 and disengages from the lock hole 10. At this point, the position of the locking buckle 3 can be freely adjusted or it can be completely pulled out. Without external force pressing the drive block 304, the spring 303 maintains the contact pressure between the locking pin 302 and the lock hole 10, preventing accidental unlocking due to vibration or friction.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double secure waistband structure, characterized by, include: The first safety structure (1) is used to be fitted onto the waist of the human body. The first safety structure (1) is a ring structure. The second safety structure includes an adjustment belt (2), a locking buckle (3), and a locking groove (4). One end of the adjustment belt (2) is sewn onto the first safety structure (1). The locking buckle (3) is disposed on the second safety structure. There are multiple locking grooves (4), which are spaced apart on the first safety structure (1). The locking buckle (3) can be connected to any of the locking grooves (4).

2. A double secure waistband structure according to claim 1, wherein The first safety structure (1) includes a waist surface (101) and a lining (102), the waist surface (101) covering the lining (102) and the waist surface (101) sewn onto the lining (102).

3. A double secure waistband structure according to claim 2, wherein The lining (102) is an elastic structure.

4. The double secure waistband structure of claim 1, wherein The locking buckle (3) includes a base (301), a locking pin (302), a spring (303), and a driving block (304). The base (301) has a receiving cavity (6) for accommodating the locking pin (302) and the spring (303). The spring (303) is disposed at the bottom of the receiving cavity (6), and the locking pin (302) is disposed on the spring (303). The outer wall of the base (301) has a sliding groove (5). The sliding groove (5) has a sliding space (7) communicating with the receiving cavity (6). The driving block (304) is slidably disposed in the sliding groove (5). The driving block (304) passes through the sliding space (7) and is connected to the locking pin (302). The driving block (304) is used to drive the locking pin (302) to slide in the receiving cavity (6).

5. A double secure waistband structure according to claim 4, wherein The base (301) has an arc-shaped chamfer structure (8) on one side extending into the locking groove (4).

6. A double secure waistband structure according to claim 4, wherein The drive block (304) is provided with an anti-slip layer (9), which is a plurality of arc-shaped protrusions.

7. The double secure waistband structure of claim 4, wherein The side wall of the locking groove (4) is provided with a corresponding lock hole (10), and the spring (303) can push the locking pin (302) into the lock hole (10).

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