Snap fastener with clamping lock

Abstract

The snap fastener with the clamping lock comprises a first fastener arranged at one end of a trouser belt and a second fastener arranged at the other end of the trouser belt. The interior of the first fastener is hollow, and a groove hole is formed in the outer side face of the first fastener. The slotted hole comprises a first hole part far away from one side of the second fastener and a second hole part close to one side of the second fastener, the first hole part is communicated with the second hole part, and the hole diameter of the first hole part is larger than that of the second hole part; according to the utility model, the first fastener and the second fastener are matched through the slotted hole and the lock rod, so that a clamping and locking mechanism is realized. After being inserted into the first hole part, the first lock part can be translated to the second hole part so as to be fixed on the second hole part. The lateral translation clamping lock design is more stable than a traditional pressing type snap fastener, and the clamping lock is not prone to falling off accidentally even in the strenuous exercise or long-time sitting process.

Description

Technical Field

[0001] This utility model is a four-in-one buckle with a locking mechanism, belonging to the field of clothing fastener technology. Background Technology

[0002] A snap fastener is a type of fastener structure mainly used in the placket of clothing such as trousers and skirts.

[0003] Currently, the popular and widely used fasteners for trousers and skirts include snap fasteners and button fasteners. Snap fasteners are all direct-press designs, which are more convenient than traditional buttons and keyholes. However, many users have found that existing button fasteners are prone to popping open when sitting for long periods, after eating, or exercising. Sometimes, they need to be repeatedly pressed, and the pressure required is relatively high. For women with less strength, they need to operate with both hands. Furthermore, frequent opening and closing can cause wear and tear on the fasteners, affecting their lifespan and potentially rendering the garment unusable. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a four-way snap fastener with a locking mechanism to solve the problems of the existing technology.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A snap fastener with a locking mechanism includes: a first fastener located at one end of a belt, and a second fastener located at the other end of the belt;

[0007] The first fastener is hollow inside, and the outer side of the first fastener is provided with a slot;

[0008] The slot includes a first hole portion on the side away from the second fastener and a second hole portion on the side close to the second fastener. The first hole portion and the second hole portion are connected, and the diameter of the first hole portion is larger than that of the second hole portion.

[0009] The second fastener includes a locking rod that mates with the slot. The locking rod includes a first locking part that inserts into the hollow area inside the first fastener, and a second locking part that extends outward from the first locking part and passes through the slot.

[0010] The first locking part is smaller than the first hole and larger than the second hole, and the second locking part is smaller than the second hole;

[0011] In the installed state, the first locking part is inserted into the first hole, and the second locking part drives the first locking part to move laterally toward the second hole, thereby controlling the first locking part to be locked onto the second hole.

[0012] In the disassembled state, the first locking part is driven by the second locking part to move laterally toward the first hole, thereby controlling the first locking part to disengage from the first hole.

[0013] As a further improvement, the width of the slot smoothly decreases from the first hole towards the second hole. As a further improvement, the inner side of the slot bends inward to form an arc-shaped structure.

[0014] As a further improvement, a first strong magnetic sheet is also included, which is embedded inside the first fastener on the side facing the second hole.

[0015] The locking rod is internally fitted with a second strong magnetic sheet. The first strong magnetic sheet and the second strong magnetic sheet cooperate to control the locking rod inserted into the first lock part to move towards the second hole.

[0016] As a further improvement, a bottleneck portion is provided between the first hole and the second hole, the bottleneck portion being smaller than the width of the second hole.

[0017] As a further improvement, an elastic sleeve is fitted over the outside of the first lock part, and the width of the lock rod fitted with the elastic sleeve is greater than that of the bottleneck part and smaller than that of the second hole part.

[0018] As a further improvement, the bottleneck portion extends inward from one side of the first hole portion towards the second hole portion at two-thirds of the distance, forming a single neck with unilateral constraint.

[0019] As a further improvement, the bottleneck portion extends inward from both sides at two-thirds of the distance from the first hole to the second hole, forming a double neck with double-sided constraint.

[0020] As a further improvement, a guide groove is also provided at an angle inside the first fastener;

[0021] The first locking part is provided with a guide block on the side facing the guide groove, and the guide block matches the guide groove.

[0022] The depth of the guide groove gradually increases from the first hole toward the second hole.

[0023] As a further improvement, the second fastener includes a locking disc welded to one end of the corresponding locking rod, the diameter of which is larger than the cross-sectional diameter of the locking rod.

[0024] Beneficial effects:

[0025] This invention achieves a locking mechanism through the cooperation of a first fastener and a second fastener via a slot and a locking rod. After the first locking part is inserted into the first hole, it can be moved to the second hole, thereby fixing it in place. This lateral sliding locking design is more stable than traditional push-button snap fasteners and is less likely to accidentally fall off even during vigorous exercise or prolonged sitting.

[0026] Through the structural design of the first and second holes, the locking bar can be locked in multiple positions, improving the reliability and security of the locking and reducing the possibility of it breaking open.

[0027] When locking the device, the user simply inserts the first locking part into the first hole, and then moves it laterally to engage the second locking part. This operation is relatively simple and does not require much pressure, making it especially convenient and quick for women with less strength, as it can be done with one hand.

[0028] Because repeated pressing is not required during fastening, wear on the fasteners is reduced, extending their service life.

[0029] Compared to existing technologies, traditional snap fasteners are prone to breaking open when subjected to external force, while this snap fastener with a locking mechanism achieves multi-point locking through lateral translation, greatly improving stability and effectively preventing accidental opening during various activities. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the installation state of the first fastener of the four-piece snap fastener with locking mechanism of this utility model.

[0032] Figure 2 This is a schematic diagram of the installation state of the second fastener of the four-piece snap fastener with locking mechanism according to this utility model.

[0033] Figure 3 This is a structural schematic diagram of a first fastener of this utility model.

[0034] Figure 4 This is a structural schematic diagram of a second fastener according to the present invention.

[0035] Figure 5 This is a schematic diagram of another embodiment of the first fastener of this utility model.

[0036] Figure 6 This is a schematic diagram of another embodiment of the second fastener of this utility model.

[0037] Figure 7 This is a schematic diagram of the double-neck structure of a first fastener of this utility model.

[0038] Figure 8 This is a schematic diagram of a single-neck structure of a first fastener according to this utility model.

[0039] 1. Belt; 2. First buckle; 3. Second buckle; 21. Slot; 22. First hole; 23. Second hole; 31. Locking rod; 311. First locking part; 312. Second locking part; 32. First strong magnetic piece; 33. Second strong magnetic piece; 34. Bottle neck; 35. Elastic sleeve; 36. Single neck; 37. Double neck; 38. Guide block; 24. Guide groove. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0041] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] Reference Figure 1-4 , Figure 7 As shown, a snap fastener with a locking mechanism includes:

[0043] A first buckle 2 is provided at one end of the belt 1, and a second buckle 3 is provided at the other end of the belt 1;

[0044] The first fastener 2 is hollow inside, and the outer side of the first fastener 2 is provided with a slot 21;

[0045] The slot 21 includes a first hole 22 on the side away from the second fastener 3 and a second hole 23 on the side close to the second fastener 3. The first hole 22 and the second hole 23 are connected, and the diameter of the first hole 22 is larger than that of the second hole 23.

[0046] The second fastener 3 includes a locking rod 31 that mates with the slot 21. The locking rod 31 includes a first locking part 311 that inserts into the hollow area inside the first fastener 2, and a second locking part 312 that extends outward from the first locking part 311 and passes through the slot 21.

[0047] The first locking part 311 is smaller than the first hole 22 and larger than the second hole 23, and the second locking part 312 is smaller than the second hole 23;

[0048] In the installed state, the first locking part 311 is inserted into the first hole 22, and the second locking part 312 drives the first locking part 311 to move laterally toward the second hole 23, thereby controlling the first locking part 311 to be locked onto the second hole 23.

[0049] In the disassembled state, the first locking part 311 is driven by the second locking part 312 to move laterally toward the first hole 22, thereby controlling the first locking part 311 to disengage from the first hole 22.

[0050] A locking mechanism is achieved through the cooperation of the first fastener 2 and the second fastener 3 via the slot 21 and the locking rod 31. After the first locking part 311 is inserted into the first hole 22, it can be moved to the second hole 23, thereby fixing it to the second hole 23. This lateral sliding locking design is more stable than the traditional push-button snap fastener and is less likely to accidentally fall off even during vigorous exercise or prolonged sitting.

[0051] Through the structural design of the first hole 22 and the second hole 23, the locking rod 31 can be locked in multiple positions, which improves the reliability and security of the locking and reduces the possibility of breaking open.

[0052] When engaging the locking mechanism, the user simply inserts the first locking part 311 into the first hole 22, and then moves it laterally into the second hole 23. This operation is relatively simple and does not require much pressure, making it especially convenient and quick for women with less strength, as it can be completed with one hand.

[0053] Because repeated pressing is not required during fastening, wear on the fasteners is reduced, extending their service life.

[0054] Compared to existing technologies, traditional snap fasteners are prone to breaking open when subjected to external force, while this snap fastener with a locking mechanism achieves multi-point locking through lateral translation, greatly improving stability and effectively preventing accidental opening during various activities.

[0055] Although an additional translation step has been added, the overall operation remains simple and does not require much strength, reducing the difficulty of locking and making it especially suitable for users with less strength.

[0056] It can be used not only for trousers and skirts, but also for other clothing or accessories that require fastening, and has a wide range of applications.

[0057] In this embodiment, the first fastener 2 and the second fastener 3 are installed on the belt 1 by rivets. In other embodiments, the first fastener 2 and the second fastener 3 may also be fixed to the belt 1 by sewing.

[0058] The width of the hole smoothly decreases from the first hole 22 toward the second hole 23.

[0059] The slot 21 has a smoothly narrowing width from the first hole 22 to the second hole 23. This is to guide the locking rod 31 to move along the correct path when it is inserted, while providing a gradually narrowing constraint during translation to ensure that the locking rod 31 will not easily slip out.

[0060] The smoothly narrowing design better guides the locking rod 31 into the second hole 23, reducing the difficulty of alignment during insertion and making the operation smoother. During the translation of the locking rod 31, the gradually narrowing hole diameter provides more friction and restraint, ensuring that the first locking part 311 is more secure in the second hole 23 and is not easy to fall off.

[0061] The inner edge of the slot 21 is bent inward to form an arc-shaped structure. By bending the edge inward, a smooth arc shape is formed, which helps to reduce friction when in contact with the locking rod 31, thereby extending the service life of the fastener. This makes the locking rod 31 smoother during insertion and lateral movement, reducing operating resistance and allowing users to more easily complete the fastening and disassembly.

[0062] A bottleneck portion 34 is further provided between the first hole 22 and the second hole 23, and the bottleneck portion 34 is smaller than the width of the second hole 23. The purpose of providing the bottleneck portion 34 between the first hole 22 and the second hole 23 is to provide an additional locking position, ensuring that the first locking part 311 can be effectively restrained during translation and preventing accidental slippage. As an additional locking point, the bottleneck portion 34 ensures that the first locking part 311 will not easily slip out of the first hole 22 during translation, increasing the reliability of the lock. It also prevents the first locking part 311 from sliding directly out of the first hole 22 due to improper operation during disassembly, avoiding damage to the fastener caused by misoperation.

[0063] To improve the stability of the first locking part 311 after installation, an elastic sleeve 35 is fitted onto the outside of the first locking part 311. The width of the locking rod 31 fitted with the elastic sleeve 35 is greater than that of the bottleneck part 34 and smaller than that of the second hole part 23. The elastic sleeve 35 increases the contact area between the locking rod 31 and the inner wall of the slot 21, improves the friction, and makes the fastener more stable and less prone to loosening when subjected to external forces.

[0064] Meanwhile, the elastic sleeve 35 can act as a buffer, reducing the impact force when the locking rod 31 moves within the slot 21, protecting the fastener structure and extending its service life.

[0065] The bottleneck portion 34 extends inward from both sides of the first hole portion 22 toward the second hole portion 23 at two-thirds of the distance, forming a double neck 37 with double-sided constraint.

[0066] The second fastener 3 includes a locking disc 39 welded to one end of the corresponding locking rod 31, wherein the diameter of the locking disc 39 is larger than the cross-sectional diameter of the locking rod 31.

[0067] The double neck 37 with double-sided restraint is set at two-thirds of the bottleneck section 34 to further enhance the stability of the locking rod 31 during translation and prevent the locking rod 31 from deviating during lateral translation.

[0068] The double neck design 37 provides more precise lateral restraint, ensuring that the locking rod 31 remains on the correct path during translation, thus improving locking security. The double-sided restraint reduces the degree of freedom of the locking rod 31 within the second hole 23, preventing it from loosening or disengaging due to external forces.

[0069] A locking disc with a diameter larger than the cross-sectional diameter of the locking rod 31 is welded and fixed to one end of the locking rod 31 of the second fastener 3 in order to provide a larger contact surface and prevent the locking rod 31 from completely disengaging from the first fastener 2.

[0070] The diameter of the lock disc is larger than the cross-sectional diameter of the lock rod 31, which can prevent the lock rod 31 from completely disengaging from the first fastener 2 during disassembly, reducing the risk of loss of the fastener.

[0071] It also makes it easier for users to control. The presence of the locking disc makes it easier for the operator to control the locking lever 31, facilitating locking and unlocking operations, especially for users with less strength.

[0072] The aforementioned design details work together to make this snap-lock buckle more stable, durable, and convenient to use. The smooth, narrowed slot 21, the curved edge of the hole, the neck section 34, and the elastic sleeve 35 reduce wear, enhance locking reliability, and lower the difficulty of operation. In particular, the design of the double neck 37 and the locking disc further improves the stability and security of the buckle, enabling it to perform excellently in various usage scenarios.

[0073] Example 2

[0074] Reference Figure 3-4 As shown, this embodiment is basically the same as embodiment 1, except that it also includes a first strong magnetic sheet 32 ​​embedded inside the first fastener 2 facing the second hole 23.

[0075] The locking rod 31 is internally fitted with a second strong magnetic sheet 33. The first strong magnetic sheet 32 ​​and the second strong magnetic sheet 33 cooperate to control the locking rod 31 inserted into the first locking part 311 to move towards the second hole 23.

[0076] By using magnetic force for automatic alignment and locking, the locking rod 31 can automatically move to the second hole 23 after being inserted into the first hole 22, thus completing the locking process.

[0077] When engaging the locking mechanism, users simply insert the locking rod 31 into the first hole 22, and the magnetic force automatically guides the locking rod 31 to move horizontally to the second hole 23, reducing the need for manual movement and making the operation simpler and faster. This design is particularly beneficial for users with less strength, such as women or the elderly, as it significantly reduces the difficulty of engaging and disengaging the mechanism, providing a more user-friendly experience.

[0078] The magnetic force not only helps the locking rod 31 to move automatically, but also provides additional attraction during the movement, ensuring that the locking rod 31 is securely locked in the second hole 23.

[0079] The magnetic attraction enhances the locking effect of the locking rod 31 within the second hole 23, reducing accidental loosening due to external forces and improving the stability of the fastener. The combination of magnetism and the structural design of the slot 21 forms a multi-point locking mechanism, further improving the reliability and security of the lock.

[0080] Example 3

[0081] Reference Figure 8As shown, this embodiment is basically the same as embodiment 1, except that it provides another design possibility. The bottleneck portion 34 extends inward from one side of the first hole portion 22 toward the second hole portion 23 at two-thirds of the distance, forming a single neck 36 with unilateral constraint.

[0082] Example 4

[0083] Reference Figure 5-6 As shown, this embodiment is basically the same as embodiment 1, except that it also includes a guide groove 24 that is inclinedly disposed inside the first fastener 2;

[0084] The first locking part 311 is provided with a guide block 38 on the side facing the guide groove 24, and the guide block 38 matches the guide groove 24;

[0085] The depth of the guide groove 24 gradually increases from the first hole 22 toward the second hole 23.

[0086] The guide groove 24 is located at the same depth as the first hole 22 and the same height as the first lock part 311, and the guide groove 24 is located at the same depth as the second hole 23 and the depth is at least twice the height of the first lock part 311.

[0087] The purpose of the inclined guide groove 24 is to allow the first locking part 311 to naturally move towards the second hole 23 after the locking rod 31 is inserted into the first hole 22.

[0088] The tilt angle of the guide groove 24 effectively guides the first locking part 311 to move from the first hole 22 to the second hole 23, reducing the need for manual adjustment and making operation simpler. The design of the tilted guide groove 24 reduces errors caused by manual operation during the translation process, ensuring that the locking rod 31 can accurately reach the second hole 23 and lock.

[0089] A guide block 38, matching the guide groove 24, is provided in the first locking part 311 to ensure that the first locking part 311 can slide smoothly along the guide groove 24 during translation. The matching design of the guide block 38 and the guide groove 24 ensures a more precise translation path for the first locking part 311, reduces the possibility of offset and jamming, and improves the reliability of the fastening. The tight fit between the guide block 38 and the guide groove 24 can reduce friction, extend the service life of the fastener, and make the operation smoother.

[0090] The depth of the guide groove 24 gradually increases from the first hole 22 toward the second hole 23 in order to provide a gradually increasing constraint force during the translation of the locking rod 31, so as to ensure that the first locking part 311 is more firmly locked in the second hole 23.

[0091] The guide groove 24 has the same depth as the first locking part 311 in the first hole 22, and the depth of the second hole 23 is at least twice the height of the first locking part 311. This is to ensure that the first locking part 311 has enough space in the second hole 23 for locking, while having enough freedom to be inserted in the first hole 22.

[0092] In the first hole 22, the depth of the guide groove 24 is consistent with the height of the first locking part 311, ensuring that the locking rod 31 will not encounter too much resistance when inserted, making the insertion operation easier.

[0093] In the second hole 23, the depth of the guide groove 24 is at least twice the height of the first locking part 311, providing sufficient space for the first locking part 311 to be fully embedded and securely locked, thereby enhancing the stability of the lock.

[0094] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A snap fastener with a locking mechanism, characterized in that, include: A first buckle (2) is set at one end of the belt (1), and a second buckle (3) is set at the other end of the belt (1); The first fastener (2) is hollow inside, and the outer side of the first fastener (2) is provided with a slot (21); The slot (21) includes a first hole (22) on the side away from the second fastener (3) and a second hole (23) on the side close to the second fastener (3). The first hole (22) and the second hole (23) are connected, and the diameter of the first hole (22) is larger than that of the second hole (23). The second fastener (3) includes a locking rod (31) that mates with the slot (21). The locking rod (31) includes a first locking part (311) that inserts into the hollow area inside the first fastener (2) and a second locking part (312) that extends outward from the first locking part (311) and passes through the slot (21). The first locking part (311) is smaller than the first hole part (22) and larger than the second hole part (23), and the second locking part (312) is smaller than the second hole part (23); In the installed state, the first locking part (311) is inserted into the first hole (22), and the first locking part (311) is driven to move laterally toward the second hole (23) by the second locking part (312), thereby controlling the first locking part (311) to be locked onto the second hole (23); In the disassembled state, the first locking part (311) is driven to move laterally toward the first hole (22) by the second locking part (312), thereby controlling the first locking part (311) to disengage from the first hole (22).

2. The snap fastener with locking mechanism according to claim 1, characterized in that: The width of the hole (22) gradually decreases from the first hole (22) toward the second hole (23).

3. A snap fastener with a locking mechanism according to claim 2, characterized in that: The inner side of the slot (21) bends inward to form an arc-shaped structure.

4. A snap fastener with locking mechanism according to claim 1, characterized in that: It also includes a first strong magnetic sheet (32) embedded inside the first fastener (2) on the side facing the second hole (23); The locking rod (31) is fitted with a second strong magnetic sheet (33). The first strong magnetic sheet (32) cooperates with the second strong magnetic sheet (33) to control the locking rod (31) inserted into the first locking part (311) to move towards the second hole (23).

5. A snap fastener with a locking mechanism according to claim 1, characterized in that: A bottleneck section (34) is also provided between the first hole (22) and the second hole (23), and the bottleneck section (34) is smaller than the width of the second hole (23).

6. A snap fastener with a locking mechanism according to claim 5, characterized in that: The first locking part (311) is fitted with an elastic sleeve (35), and the width of the locking rod (31) fitted with the elastic sleeve (35) is greater than that of the bottleneck part (34) and smaller than that of the second hole part (23).

7. A snap fastener with a locking mechanism according to claim 6, characterized in that: The bottleneck portion (34) extends inward from one side at two-thirds of the distance from the first hole portion (22) toward the second hole portion (23), forming a single neck (36) with unilateral constraint.

8. A snap fastener with a locking mechanism according to claim 6, characterized in that: The bottleneck portion (34) extends inward from the two sides at two-thirds of the distance from the first hole portion (22) toward the second hole portion (23), forming a double neck (37) with double-sided constraint.

9. A snap fastener with a locking mechanism according to claim 1, characterized in that: It also includes a guide groove (24) that is inclinedly disposed inside the first fastener (2); The first locking part (311) is provided with a guide block (38) on the side facing the guide groove (24), and the guide block (38) matches the guide groove (24); The depth of the guide groove (24) gradually increases from the first hole (22) toward the second hole (23).

10. A snap fastener with a locking mechanism according to claim 1, characterized in that: The second fastener (3) includes a locking disc (39) welded to one end of the corresponding locking rod (31), the diameter of which is larger than the cross-sectional diameter of the locking rod (31).

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