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-on connection or overall closure of one component to another. A buckle connection is characterized by easy fastening and unfastening and can be removed without the need for tools. However, conventional buckle structures are defective and unstable, and the buckle is prone to falling off during use, especially in situations where the force is uneven, the magnitude of the force is not constant, and the direction of the force changes. Therefore, a buckle is needed that provides a stable and reliable connection and is also easy to remove.

[0003] Furthermore, Chinese patent (CN211117028U) discloses a quick release buckle unit, which includes a male member and a female member, the female member having an insertion hole, and the male member having an insertion shaft that can be inserted into the insertion hole and rotated to engage with the insertion hole. The insertion hole is circular, the edge of the insertion hole is provided with a first position limiting protrusion toward the center of the insertion hole, the surface of the insertion shaft is provided with a second position limiting protrusion, and the groove is opened on the surface of the second position limiting protrusion, so that when the male member is rotated after the second position limiting protrusion passes through the insertion hole, 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 an engagement 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 an engagement to limit the rotation of the male member relative to the female member. However, the structural strength of the locking hook is low, and it is easily worn or damaged after repeated use. Moreover, it loses its position limiting effect, which affects the service life of the buckle connector and is disadvantageous to widespread use. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT EMBODIMENT In order to overcome the shortcomings of the prior art, the present invention aims at providing a buckle connector whose connection is stable and secure, and whose disconnection is easy and simple.

[0006] The present invention aims to provide a buckle connector, the male buckle of which is provided with at least one locking member, the female buckle of which is provided with an opening for inserting the locking member and a groove for the locking member to rotate, 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 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, so that the connection between the male buckle and the female buckle is stable and reliable, the solution is simple and practical, can be appropriately implemented, is easy to manufacture, and is conducive to popular use.

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

[0008] In order to achieve the above object 1, the first technical solution of the present invention is as follows: A buckle connector comprising a male buckle and a female buckle which engage with each other, the male buckle comprising a connecting portion which comprises a locking member, the female buckle comprising an opening for inserting the locking member, the opening extending into the interior of the female buckle and forming a groove along a circumferential direction for accommodating the locking member, an elastic member being provided within the groove, the elastic member being provided with a protrusion for preventing the locking member from passing through, the locking member rotating within the groove and passing through the protrusion presses and retracts the protrusion, thereby allowing the locking member to pass, and after the locking member has passed through 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 buckle or the female buckle is rotated to rotate the locking member in the groove, and the locking member is 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 in the groove, 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 torque is applied to the male buckle from the outside, the protrusion prevents the locking member from rotating in the groove, so that the connection between the male buckle and the female buckle is stable and reliable; when the buckle connector is released, a torque is applied to the male buckle and the locking member presses the protrusion, so that the male buckle and the female buckle can be separated and released, which is simple and quick to separate, and saves time and labor.

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

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

[0012] As a preferred technical solution, the connection 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 connection part. The locking member is arranged cylindrically, which makes it easier and saves labor when passing through the protrusion, and the locking member is symmetrically arranged on the insertion head, which makes 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, and the fixing part is provided with a through hole. The fixing part is provided with a through hole for fixing a part such as a drawstring.

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

[0015] In order to achieve one of the above objectives, the second technical solution of the present invention is as follows: A buckle connector comprising 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 groove, The elastic member is provided with a protrusion that can be positioned relative to the locking member, By applying a torque to the male buckle, the locking member rotates in the groove and presses the protrusion to move it away when passing 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 provide a buckle connector, in which the male buckle is inserted into the female buckle through the opening, and then the male buckle or the female buckle is rotated to rotate the locking member in the groove, an elastic member is provided in the groove, 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 torque is applied to the male buckle from the outside, the protrusion prevents the locking member from rotating in the groove, so that the connection between the male buckle and the female buckle is stable and reliable, when the buckle connector is released, a torque is applied to the male buckle and the locking member presses the protrusion, the male buckle and the female buckle can be separated and released, the solution is simple and practical, can be appropriately implemented, is easy to manufacture, and is conducive to popular use.

[0017] As suitable technical measures, The locking member is a columnar structure, or a spherical structure, or a square structure with chamfered edges, and extends outward from the body of the male buckle to form a protruding wing-like body; The number of the locking members can be one, two, or three, which can 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] As suitable technical measures, A recess is provided at a position of the recessed groove where the protrusion engages, The recess is provided on the bottom wall or side wall of the groove, and an elastic member is provided inside the recess to accommodate the protrusion and form a retreat space for the protrusion, which has a simple and practical structure and provides a suitable solution.

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

[0021] As suitable technical measures, 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 action of 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 comprising 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 and to other accessories by the above-mentioned buckle connector. Effect 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 buckle or female buckle is rotated to rotate the locking member in the groove, and the locking member is 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 in the groove, 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, so that the connection between the male buckle and the female buckle is stable and reliable, when the buckle connector is released, a torque is applied to the male buckle and the locking member presses the protrusion, the male buckle and the female buckle can be separated and released.

[0025] In addition, according to the expander provided by the present invention, the drawstring and the expander body are connected by a buckle connector. The buckle connector inserts the male buckle into the female buckle through the opening, then rotates the male buckle to rotate the locking member in the groove, and then locks the locking member through the horizontal groove in the female member, thus achieving the effect of connecting the male buckle and the female buckle, which is convenient and simple to connect. An elastic member is provided in the groove, and the elastic member is provided with a protrusion. When the locking member rotates in the groove and passes through the protrusion, it presses the protrusion and then the protrusion is inserted into the groove. Once inside the groove, 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 within the groove, ensuring a stable and reliable connection between the male buckle and the female buckle; when the buckle connector is released, torque is applied to the male buckle and the locking member presses the protrusion, which separates and releases the male buckle and the female buckle. By connecting the expander body and the pull cord through the buckle connector, the fixation of the pull cord to the expander body is stable and reliable, and it is also very convenient to remove the pull cord. [Brief description of the drawings]

[0026] [Figure 1] FIG. 2 is a schematic diagram of a male buckle of the buckle connector of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of a female buckle of the buckle connector of the present invention. [Diagram 3] 2 is a schematic diagram showing the back surface 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. [Diagram 5] 5 is a schematic cross-sectional view of the entire female buckle of FIG. 4. [Figure 6] FIG. 2 is a schematic diagram of the buckle connector of the present invention applied to a drawstring. [Figure 7] FIG. 2 is a schematic diagram showing the application of a buckle connector to the expander of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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 combination with figures 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 replacement, amendment, equivalent methods and solutions completed within the spirit and scope of the present invention as defined in the claims. Furthermore, in order to facilitate a better understanding of the present invention to the general public, 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 the need for 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 of the associated items.

[0031] As shown in Figs. 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 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 its position relative to 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 the position before being pressed, and the positioning of the male buckle 1 with the female buckle 2 is completed.

[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 in the groove 22, an elastic member is provided in the groove 22, and the elastic member is provided with a protrusion 24. When the locking member 13 rotates in the groove 22 and passes the protrusion 24, it presses the protrusion 24 before entering the groove 22, and then the protrusion 24 returns to its original position. When no torque is applied to the male buckle 1 from the outside, the protrusion 24 prevents the locking member 13 from rotating in the groove 22, so that the connection between the male buckle 1 and the female buckle 2 is stable and reliable. When the buckle connector is released, a torque is applied to the male buckle 1 so that the locking member 13 presses the protrusion 24, and the male buckle 1 and the female buckle 2 can be separated and released. The solution is simple and practical, can be appropriately implemented, is easy to manufacture, and is conducive to popular use.

[0033] As a specific example of the locking member 13 of the present invention, The locking member 13 is a columnar structure, a spherical structure, or a square structure with chamfered edges, and extends outward from the 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 added and arranged, The recessed groove 22 is provided with a recess at a position where the protrusion 24 engages with the recessed groove 22. The recess is provided on the bottom wall or side wall of the groove 22, and an elastic member is provided inside the recess 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 appropriately implemented.

[0035] As a preferred embodiment of the buckle connector of the present invention, A buckle connector comprising a male buckle 1 and a female buckle 2 which engage with each other, the male buckle 1 comprising a connecting portion 11 which comprises a locking member 13, the female buckle 2 comprising an opening 21 for inserting the locking member 13, the opening 21 extending into the interior of the female buckle 2 and forming a groove 22 for fixing the locking member 13 along a horizontal direction, an elastic member provided within the groove 22, the elastic member having a protrusion 24 for preventing the locking member 13 from passing through, the locking member 13 rotates within the groove 22 and passes through the protrusion 24, pressing against the protrusion 24 to retract it, thereby allowing the locking member 13 to pass through, and after the locking member 13 passes through 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, and 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 realized by disposing the elastic sheet 23 at the bottom of the groove 22, and the structure is simple and the cost is low.

[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 in the connecting portion 11, so that when the connecting portion 11 is inserted into the opening 21, the boss 25 abuts against the recess 15. By arranging the boss 25 and the 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 the male buckle 1 is inserted 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 labor, 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 component 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 embodiment 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 above-mentioned buckle connector, and is connected to other accessories by the above-mentioned buckle connector.

[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 cords 3 is two, which are connected to the expander body 4 by the buckle connectors, respectively, so that the pull cords 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 part; 12...Fixed part; 13...locking member; 14 ···insertion head; 15 ···recess; 16 ···Through holes; 2 female buckle; 21...opening; 22 ···Groove; 23 ···Elastic sheet; 24...protrusion; 25 ···Boss; 3···Drawstring; 4 Expander body.

Claims

1. A buckle connector comprising a male buckle (1) and a female buckle (2) which engage with each other, the male buckle (1) comprising a connecting portion (11), the connecting portion (11) comprising a locking member (13), the female buckle (2) having an opening (21) for inserting the locking member (13), the opening (21) extending into the interior of the female buckle (2) and forming a groove (22) for accommodating the locking member (13) along a circumferential direction, an elastic member being provided within the groove (22), The elastic member is provided with a protrusion (24) that prevents the passage of the locking member (13), and by applying torque to the male buckle (1), the locking member (13) rotates within the groove (22) and presses and retracts the protrusion (24) as it passes through the protrusion (24), thereby allowing the locking member (13) to pass through, and after the locking member (13) passes through the protrusion (24), the protrusion (24) returns to its position before being pressed.

2. 2. The buckle connector according to claim 1, wherein the elastic member is an elastic sheet (23), one end of the elastic sheet (23) is fixed to the bottom of the groove (22) and the other end is a free end, the protrusion (24) is provided at the free end of the elastic sheet (23), and 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 its position before being pressed.

3. The buckle connector according to claim 2, characterized in that a boss (25) is provided within the opening (21), a recess (15) is provided in the connecting portion (11) that engages with the boss (25), and when the connecting portion (11) is inserted into the opening (21), the boss (25) abuts against the recess (15).

4. The buckle connector according to any one of claims 1 to 3, characterized in that the connection portion (11) includes an insertion head (14), the locking member (13) is cylindrical, the locking member (13) is symmetrically arranged at the end of the insertion head (14), and the shape of the opening (21) fits the connection portion (11).

5. The buckle connector according to claim 4, 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).

6. A buckle connector, The buckle includes 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 groove (22) for rotating the locking member (13), An elastic member is provided in the groove (22), The elastic member is provided with a protrusion (24) capable of restricting its position relative to the locking member (13), By applying a 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).

7. The locking member (13) is a columnar structure, or a spherical structure, or a square structure with chamfered edges, and extends outward from the body of the male buckle (1) to form a protruding wing-like body; The buckle connector according to claim 6, characterized in that the shape of the opening (21) matches the shape of the locking member (13).

8. A recess is provided in the groove (22) at a position where the protrusion (24) engages with the groove (22), The recess is provided on the bottom wall or side wall of the groove (22), has an elastic member provided therein, is capable of accommodating the protrusion (24), and forms a retreat space for the protrusion (24); The buckle connector according to claim 6, wherein the elastic member is a spring or rubber body, a torsion spring, or an elastic sheet (23).

9. The buckle connector according to any one of claims 6 to 8, characterized in that the elastic member is an elastic sheet (23), one end of the elastic sheet (23) is fixed to the bottom of the groove (22) and the other end is a free end, the protrusion (24) is provided at the free end of the elastic sheet (23), and when the locking member (13) presses the protrusion (24), the protrusion (24) retracts, and after the locking member (13) passes the protrusion (24), the elastic sheet (23) acts to cause the protrusion (24) to return to its position before being pressed.

10. An expander comprising a drawstring (3) and an expander body (4), characterized in that the drawstring (3) and / or the expander body (4) are fitted with a buckle connector according to any one of claims 1 to 9.

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