Buckle connector and expander to which it is applied

Abstract

The present invention discloses a buckle connector and an expander to which the same is applied. The buckle connector includes a male buckle (1) and a female buckle (2) that engage with each other, the male buckle (1) includes a connecting portion (11), the connecting portion (11) includes a locking member (13), the female buckle (2) is provided with an opening (21) for inserting the locking member (13), the opening (21) extends into the inside of the female buckle (2) and forms a groove (22) along the circumferential direction for accommodating the locking member (13), and within the groove (22) is an elastic material. The elastic member is provided with a protrusion (24) that prevents the passage of the locking member (13), and when a torque is applied to the male buckle (1), the locking member (13) rotates in the groove (22) and passes the protrusion (24), pressing and retracting the protrusion (24), thereby allowing the locking member (13) to pass, and after the locking member (13) passes the protrusion (24), the protrusion (24) returns to its position before being pressed. In this buckle connector, the male buckle (1) is inserted into the female buckle (2) through the opening (21), and then the male buckle (1) is rotated to rotate the locking member (13) in the groove (22), and the locking member (22) is locked by the horizontal groove in the female member, thereby achieving the effect of connecting the male buckle (1) and the female buckle (2), and the connection is convenient and simple.

Description

[Technical Field]

[0001] The present invention relates to a buckle connector and an expander to which the same is applied, and belongs to the technical field of buckles. [Background technology]

[0002] A buckle is a mechanism used for snap-fit ​​connection or overall closure of one component to another. Buckle connections are characterized by easy fastening and unfastening, and can be removed without tools. However, conventional buckle structures are flawed and unstable, making buckles prone to coming off during use, especially in situations where the force is uneven, the magnitude of the force is not constant, or the direction of the force changes. Therefore, there is a need for a buckle that provides a stable and reliable connection and is easy to remove.

[0003] Furthermore, Chinese Patent (CN211117028U) discloses a quick-release buckle unit, including a male member and a female member, the female member having a mounting hole, and the male member having a mounting shaft that can be inserted into the mounting hole and rotated to engage with the mounting hole. The mounting hole is circular, and the edge of the mounting hole is provided with a first position limiting protrusion toward the center of the mounting hole, and the surface of the mounting shaft is provided with a second position limiting protrusion, and the groove is formed on the surface of the second position limiting protrusion so that when the second position limiting protrusion passes through the mounting hole and the male member is rotated, the second position limiting protrusion and the first position limiting protrusion are aligned and engaged. The second position limiting protrusion has a locking hook that engages with the edge of the first position limiting protrusion, and the locking hook forms a lock with the first position limiting protrusion to limit the rotation of the male member relative to the female member.

[0004] In the above solution, the locking hook and the first position limiting protrusion form a lock to limit the rotation of the male component relative to the female component. However, the structural strength of the locking hook is low, and it is easily worn or damaged after repeated use. Furthermore, it loses its position limiting function, which affects the service life of the buckle connector and is unfavorable for widespread use. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION In order to overcome the shortcomings of the prior art, the present invention aims to provide a buckle connector that is stable and secure in connection and easy and simple in separation.

[0006] The present invention aims to provide a buckle connector, the male buckle of which is provided with at least one locking member, and the female buckle is provided with an opening for inserting the locking member and a groove for the locking member to rotate in, the groove is provided with an elastic member, and the elastic member is provided with a protrusion, when the locking member rotates in the groove and passes the protrusion, it presses the protrusion before entering the groove and then the protrusion returns to its original position, when no external torque is applied to the male buckle, the protrusion prevents the locking member from rotating in the groove, ensuring a stable and reliable connection between the male buckle and the female buckle, the solution is simple and practical, can be properly implemented, is easy to manufacture and contributes to widespread use.

[0007] The present invention aims to provide an expander, which is connected to accessories by a buckle connector, making it easy to replace and connect each accessory, and the connection is stable and reliable, and the separation is convenient and easy. [Means for solving the problem]

[0008] In order to achieve the above Objective 1, the first technical solution of the present invention is as follows: A buckle connector includes a male buckle and a female buckle that engage with each other, the male buckle includes a connecting portion that includes a locking member, the female buckle includes an opening for inserting the locking member, the opening extends into the interior of the female buckle and forms a circumferential groove for accommodating the locking member, an elastic member is provided within the groove, and the elastic member is provided with a protrusion that prevents the locking member from passing through, the locking member rotates within the groove and passes over the protrusion, pressing against and retracting the protrusion, thereby allowing the locking member to pass, and after the locking member passes over the protrusion, the protrusion returns to its position before being pressed.

[0009] According to the buckle connector provided by the present invention, the male buckle is inserted into the female buckle through the opening, and then the male or female buckle is rotated to rotate the locking member within the groove. The locking member is then locked by the horizontal groove in the female member, thereby achieving the effect of connecting the male buckle and the female buckle, which is convenient and simple to connect. An elastic member is provided within the groove, and the elastic member is provided with a protrusion. When the locking member rotates within the groove and passes over the protrusion, it presses the protrusion before entering the groove and then returns to its original position. When no external torque is applied to the male buckle, the protrusion prevents the locking member from rotating within the groove, ensuring a stable and reliable connection between the male buckle and the female buckle. To release the buckle connector, torque is applied to the male buckle, causing the locking member to press the protrusion, which allows the male buckle and the female buckle to be separated and released. Separation is simple and quick, saving time and effort.

[0010] As a preferred technical solution, the elastic member is an elastic sheet, one end of which is fixed to the bottom of the groove and the other end is a free end, the protrusion is provided at the free end of the elastic sheet, the protrusion retreats when the locking member presses the protrusion, and after the locking member passes the protrusion, the protrusion returns to its original position under the action of the elastic sheet. The function of the elastic member is realized by placing the elastic sheet at the bottom of the groove, which has a simple structure and low cost.

[0011] As a preferred technical solution, a boss is provided within the opening, and a recess is provided on the connecting part to engage with the boss, and when the connecting part is inserted into the opening, the boss abuts against the recess. The arrangement of the boss and recess that engage with each other prevents excessive axial force from being applied when inserting the male buckle into the female buckle, which could damage the structure of the female buckle.

[0012] As a preferred technical solution, the connecting part includes an insertion head, the locking member is cylindrical, the locking member is symmetrically arranged on the end of the insertion head, and the shape of the opening fits the connecting part. The cylindrical arrangement of the locking member makes it easier to pass through the protrusion and saves effort, and the locking member is symmetrically arranged on the insertion head, making the force more uniform when connecting the male buckle and the female buckle.

[0013] As a preferred technical solution, the male buckle further includes a fixing part fixedly connected to the connecting part, the fixing part being provided with a through hole for fixing a part such as a drawstring.

[0014] The main body shape of the male buckle and female buckle may be a columnar shape, a partially cut columnar shape, a rectangular parallelepiped, a rectangular parallelepiped with chamfered edges, or other irregular shapes.

[0015] In order to achieve one of the above objects, the second technical solution of the present invention is as follows: A buckle connector including a male buckle and a female buckle that are rotatable relative to one another; The male buckle is provided with at least one locking member, The female buckle is provided with an opening for inserting the locking member and a groove for rotating the locking member. An elastic member is provided in the recessed groove, The elastic member is provided with a protrusion that can restrict the position of the elastic member relative to the locking member. By applying torque to the male buckle, the locking member rotates in the groove and presses the protrusion to retract when passing through the protrusion, thereby allowing the locking member to pass through. After the locking member passes through the protrusion, the protrusion returns to its original position before being pressed, completing the positioning of the male buckle with the female buckle.

[0016] As a result of continuous research and experimentation, the present invention has been found to arrange a buckle connector such that the male buckle is inserted into the female buckle through the opening, and then the male or female buckle is rotated to rotate the locking member within the groove, an elastic member is provided within the groove, and a protrusion is provided on the elastic member, and when the locking member rotates within the groove and passes the protrusion, it presses the protrusion before entering the groove, and the protrusion then returns to its original position, and when no external torque is applied to the male buckle, the protrusion prevents the locking member from rotating within the groove, ensuring a stable and reliable connection between the male buckle and the female buckle, and when the buckle connector is released, torque is applied to the male buckle and the locking member presses the protrusion, which allows the male buckle and female buckle to be separated and released, a solution that is simple, practical, suitable for implementation, easy to manufacture, and conducive to popular use.

[0017] Suitable technical measures include: The locking member is a columnar structure, a spherical structure, or a square structure with a chamfered edge, and extends outward from the body of the male buckle to form a protruding wing-like body; The number of the locking members may be one, two, or three, which may be selected by those skilled in the art according to the actual situation.

[0018] The shape of the opening matches the shape of the locking member.

[0019] Suitable technical measures include: A recess is provided in the recessed groove at a position where the protrusion engages with the recessed groove, The recess is provided on the bottom wall or side wall of the groove, and an elastic member is provided inside it to accommodate the protrusion and form a retreat space for the protrusion, which has a simple structure, is practical, and provides an appropriate solution.

[0020] The elastic member is a spring, a rubber body, a torsion spring, or an elastic sheet.

[0021] Suitable technical measures include: The elastic member is an elastic sheet, one end of which is fixed to the bottom of the groove and the other end is a free end, and the protrusion is provided at the free end of the elastic sheet. When the locking member presses the protrusion, the protrusion retracts, and after the locking member passes the protrusion, the elastic sheet causes the protrusion to return to its position before being pressed.

[0022] In order to achieve one of the above objectives, the third technical solution of the present invention is as follows: an expander including a drawstring and an expander body; The drawstring and / or the expander body are attached with the buckle connector described above.

[0023] Alternatively, the drawstring and the expander body are connected to each other with other accessories by the above-mentioned buckle connector. [Effects of the Invention]

[0024] According to the buckle connector provided by the present invention, the male buckle is inserted into the female buckle through the opening, and then the male or female buckle is rotated to rotate the locking member within the groove. The locking member is then locked by the horizontal groove in the female member, thereby achieving the effect of connecting the male buckle and the female buckle, which is convenient and simple to connect. An elastic member is provided within the groove, and the elastic member is provided with a protrusion. When the locking member rotates within the groove and passes over the protrusion, it presses the protrusion before entering the groove and then returns to its original position. When no external torque is applied to the male buckle, the protrusion prevents the locking member from rotating within the groove, ensuring a stable and reliable connection between the male buckle and the female buckle. To release the buckle connector, torque is applied to the male buckle, causing the locking member to press the protrusion, thereby separating and releasing the male buckle and the female buckle.

[0025] Furthermore, in the expander provided by the present invention, the drawstring and the expander body are connected by a buckle connector. The buckle connector is inserted into the female buckle through the opening, and then the male buckle is rotated to rotate the locking member in the groove. The locking member is then locked by the horizontal groove in the female member, thereby achieving the effect of connecting the male buckle and the female buckle, and the connection is convenient and simple. An elastic member is provided in the groove, and a protrusion is provided on the elastic member. When the locking member rotates in the groove and passes through the protrusion, it presses the protrusion and then locks into the groove. Once inside the groove, the protrusion will return to its original position. When no external torque is applied to the male buckle, the protrusion will prevent the locking member from rotating within the groove, ensuring a stable and secure connection between the male buckle and the female buckle. When releasing the buckle connector, torque is applied to the male buckle, causing the locking member to press the protrusion, which will separate and release the male buckle from the female buckle. The buckle connector connects the expander body and the drawstring, ensuring a stable and secure connection between the pullstring and the expander body, and also making it very convenient to remove the drawstring. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a schematic diagram of a male buckle of the buckle connector of the present invention. FIG. [Figure 2] 1 is a schematic diagram of a female buckle of the buckle connector of the present invention. [Figure 3] 2 is a schematic diagram of the back of the female buckle of the buckle connector of the present invention. FIG. [Figure 4] FIG. 4 is a schematic diagram showing the structure of FIG. 3 being transformed by a certain angle. [Figure 5] FIG. 5 is a schematic cross-sectional view of the entire female buckle of FIG. 4. [Figure 6] 1 is a schematic diagram showing the buckle connector of the present invention applied to a drawstring. [Figure 7] FIG. 1 is a schematic diagram showing the application of a buckle connector to the expander of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the drawings and examples. The specific examples described herein do not limit the present invention, but are merely for the purpose of illustrating the present invention.

[0028] On the contrary, the present invention covers any replacements, modifications, equivalent methods and solutions that fall within the spirit and scope of the present invention as defined in the claims. Furthermore, in order to help the public better understand the present invention, some specific details are set forth in the following detailed description of the present invention. Those skilled in the art can fully understand the present invention without these details.

[0029] Here, when two elements are "locked" or "fixedly connected," the two elements may be directly connected, or there may be an intermediate element. Conversely, when an element is located "directly" "on" another element, there is no intermediate element. As used herein, terms such as "in," "out," "above," "below," and similar expressions are for descriptive purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of the present invention. The terms used herein do not limit the present invention, but are merely for describing specific examples. As used herein, the term "and / or" includes any and all combinations of one or more associated items.

[0031] As shown in Figures 1 to 5, a specific embodiment of the buckle connector of the present invention is as follows: A buckle connector comprising a male buckle 1 and a female buckle 2 that are rotatable relative to each other; The male buckle 1 is provided with at least one locking member 13, The female buckle 2 is provided with an opening 21 for inserting the locking member 13 and a recessed groove 22 for rotating the locking member 13. An elastic member is provided in the recessed groove 22, The elastic member is provided with a protrusion 24 that can restrict its position relative to the locking member 13, By applying torque to the male buckle 1, the locking member 13 rotates in the recessed groove 22 and presses and retracts the protrusion 24 when passing through the protrusion 24, thereby allowing the locking member 13 to pass through. After the locking member 13 passes through the protrusion 24, the protrusion 24 returns to the position before being pressed, thereby completing the positioning of the male buckle 1 with the female buckle 2.

[0032] In the buckle connector of the present invention, the male buckle 1 is inserted into the female buckle 2 through the opening 21, and then the male buckle 1 or the female buckle 2 is rotated to rotate the locking member 13 within the groove 22. An elastic member is provided within the groove 22, and the elastic member is provided with a protrusion 24. As the locking member 13 rotates within the groove 22 and passes the protrusion 24, it presses the protrusion 24 before entering the groove 22 and then returns to its original position. When no external torque is applied to the male buckle 1, the protrusion 24 prevents the locking member 13 from rotating within the groove 22, ensuring a stable and reliable connection between the male buckle 1 and the female buckle 2. When the buckle connector is released, torque is applied to the male buckle 1, causing the locking member 13 to press the protrusion 24, thereby separating and releasing the male buckle 1 and the female buckle 2. This solution is simple, practical, and easy to implement, and is conducive to widespread use.

[0033] As a specific example of the locking member 13 of the present invention, The locking member 13 has a columnar structure, a spherical structure, or a square structure with chamfered edges, and extends outward from the main body of the male buckle 1 to form a protruding wing-like body. The shape of the opening 21 matches the shape of the locking member 13 .

[0034] As a specific example of the present invention in which a recess structure is additionally arranged, The recessed groove 22 is provided with a recess at a position where it engages with the protrusion 24, The recess is provided on the bottom wall or side wall of the groove 22, and an elastic member is provided inside it to accommodate the protrusion 24 and form a retreat space for the protrusion 24. The structure is simple and practical, and the solution can be implemented appropriately.

[0035] As a preferred embodiment of the buckle connector of the present invention, A buckle connector includes a male buckle 1 and a female buckle 2 that engage with each other. The male buckle 1 includes a connecting portion 11 that includes a locking member 13. The female buckle 2 has an opening 21 for inserting the locking member 13. The opening 21 extends into the interior of the female buckle 2 and forms a horizontal groove 22 for fixing the locking member 13. An elastic member is provided within the groove 22, and the elastic member has a protrusion 24 that prevents the locking member 13 from passing through. When the locking member 13 rotates within the groove 22 and passes over the protrusion 24, it presses and retracts the protrusion 24, allowing the locking member 13 to pass through. After the locking member 13 has passed over the protrusion 24, the protrusion 24 returns to its position before being pressed.

[0036] As a specific example of the present invention in which the elastic member is an elastic sheet 23, The elastic member is an elastic sheet 23, one end of which is fixed to the bottom of the groove 22 and the other end is a free end, and the protrusion 24 is provided at the free end of the elastic sheet 23. When the locking member 13 presses the protrusion 24, the protrusion 24 retreats, and after the locking member 13 passes the protrusion 24, the protrusion 24 returns to its position before being pressed by the action of the elastic sheet 23. The function of the elastic member is achieved by disposing the elastic sheet 23 at the bottom of the groove 22, resulting in a simple structure and low cost.

[0037] As a specific example of the present invention in which the boss 25 and the uneven structure are provided, A boss 25 is provided within the opening 21, and a recess 15 that engages with the boss 25 is provided on the connecting part 11, so that when the connecting part 11 is inserted into the opening 21, the boss 25 abuts against the recess 15. By arranging the boss 25 and recess 15 to engage with each other, it is possible to prevent damage to the structure of the female buckle 2 due to excessive axial force being applied when inserting the male buckle 1 into the female buckle 2.

[0038] As a specific example of the male buckle 1 (male member) structure of the present invention, The connecting part 11 of the male buckle 1 includes an insertion head 14, the locking member 13 is cylindrical, the locking member 13 is symmetrically arranged on the end of the insertion head 14, and the shape of the opening 21 fits the connecting part 11. The locking member 13 is arranged cylindrically, which makes it easier to pass through the protrusion 24 and saves effort, and the locking member 13 is symmetrically arranged on the insertion head 14, which makes the force more uniform when connecting the male buckle 1 and the female buckle 2.

[0039] The male buckle 1 further includes a fixing part 12 that is fixedly connected to the connecting part 11, and the fixing part 12 is provided with a through hole 16. The fixing part 12 is provided with a through hole 16 for fixing a part such as a drawstring 3.

[0040] As a specific example of the female buckle 2 (female member) structure of the present invention, The female buckle 2 has an arc-shaped structure, and inside thereof, a groove 22 is formed along the periphery, and on its surface, an opening 21 and an insertion port communicating with the groove 22 are formed, so that the male buckle 1 can be inserted into the female buckle 2 and rotated in the groove 22.

[0041] As shown in FIG. 6, a specific example in which the buckle connector of the present invention is applied to a drawstring 3 is as follows: An expander comprising a drawstring 3 and an expander body 4; The drawstring 3 is fitted with the buckle connector, and is used to connect with other accessories.

[0042] FIG. 7 is a schematic diagram showing the application of a buckle connector to the expander of the present invention; An expander comprising a drawstring 3 and an expander body 4; The number of the pull strings 3 is two, and each is connected to the expander body 4 by the buckle connector, so that the pull strings 3 and the expander body 4 can be quickly separated.

[0043] Finally, the above examples do not limit the technical solutions of the present invention, but are merely for illustrative purposes. Although the present invention has been described in detail with reference to the above examples, those skilled in the art can understand that amendments or equivalent replacements may still be made to the specific embodiments of the present invention, and any amendments or equivalent replacements that do not depart from the spirit and scope of the present invention should fall within the protection scope of the claims of the present invention. [Explanation of symbols]

[0044] 1···male buckle; 11 ···Connection; 12...Fixed part; 13...locking member; 14 ···insertion head; 15 ···recess; 16 ···Through holes; 2 female buckles; 21...opening; 22 ···Groove; 23 ···Elastic sheet; 24...protrusion; 25 ···Boss; 3 ···Drawstring; 4 Expander body.

Claims

1. A buckle connector includes a male buckle (1) and a female buckle (2) that engage with each other, the male buckle (1) includes a connecting portion (11), the connecting portion (11) includes a locking member (13), the female buckle (2) has an opening (21) for inserting the locking member (13), the opening (21) extends into the interior of the female buckle (2) and forms a groove (22) along the circumferential direction for accommodating the locking member (13), and the groove (22) has an elastic a member is provided, and the elastic member is provided with a protrusion (24) that prevents the passage of the locking member (13), and when torque is applied to the male buckle (1), the locking member (13) rotates within the groove (22) and passes the protrusion (24), it presses and retracts the protrusion (24), thereby allowing the locking member (13) to pass, and after the locking member (13) passes the protrusion (24), the protrusion (24) returns to the position it was in before being pressed, The elastic member is an elastic sheet (23), one end of which is fixed to the bottom of the groove (22) and the other end is a free end, and the protrusion (24) is provided at the free end of the elastic sheet (23). When the locking member (13) presses the protrusion (24), the protrusion (24) retreats, and after the locking member (13) passes the protrusion (24), the elastic sheet (23) acts to cause the protrusion (24) to return to the position it was in before being pressed. A buckle connector characterized in that a boss (25) is provided within the opening (21), a recess (15) that engages with the boss (25) is provided in the connecting portion (11), and when the connecting portion (11) is inserted into the opening (21), the boss (25) abuts against the recess (15) in the insertion direction.

2. The buckle connector of claim 1, characterized in that the connecting portion (11) includes an insertion head (14), the locking member (13) is cylindrical, the locking member (13) is provided symmetrically at the end of the insertion head (14), and the shape of the opening (21) fits the connecting portion (11).

3. The buckle connector according to claim 2, characterized in that the male buckle (1) further includes a fixing portion (12) fixedly connected to the connecting portion (11), and the fixing portion (12) is provided with a through hole (16).

4. A buckle connector, The buckle includes a male buckle (1) and a female buckle (2) that are rotatable relative to each other, The connecting portion (11) of the male buckle (1) is provided with at least one locking member (13), The female buckle (2) is provided with an opening (21) for inserting the locking member (13) and a recessed groove (22) for rotating the locking member (13). An elastic member is provided in the recessed groove (22), The elastic member is provided with a protrusion (24) capable of restricting the position of the locking member (13), By applying torque to the male buckle (1), the locking member (13) rotates in the groove (22) and presses and retracts the protrusion (24) when passing through the protrusion (24), thereby allowing the locking member (13) to pass through. After the locking member (13) passes through the protrusion (24), the protrusion (24) returns to its position before being pressed, completing the positioning of the male buckle (1) with the female buckle (2); The elastic member is an elastic sheet (23), one end of which is fixed to the bottom of the groove (22) and the other end is a free end, and the protrusion (24) is provided at the free end of the elastic sheet (23). When the locking member (13) presses the protrusion (24), the protrusion (24) retreats, and after the locking member (13) passes the protrusion (24), the elastic sheet (23) acts to cause the protrusion (24) to return to the position it was in before being pressed. A buckle connector characterized in that a boss (25) is provided within the opening (21), a recess (15) that engages with the boss (25) is provided in the connecting portion (11), and when the connecting portion (11) is inserted into the opening (21), the boss (25) abuts against the recess (15) in the insertion direction.

5. The locking member (13) is a columnar structure, a spherical structure, or a square structure with a chamfered edge, and extends outward from the body of the male buckle (1) to form a protruding wing-like body; The buckle connector according to claim 4, wherein the shape of the opening (21) matches the shape of the locking member (13).

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