Self-locking female and push button fastener

Abstract

The application provides a self-locking female buckle and a button buckle. The female buckle comprises a bow cup with a male buckle receiving part, a spring member arranged in the male buckle receiving part for clamping the male buckle, and a pressing structure connected with the spring member for applying pressure to make the spring member deform and release the male buckle. The spring member comprises a plurality of annular self-locking pieces arranged for clamping the male buckle. The application has the advantages that the one-handed forward buckling and forward pulling operation of the button can be well realized by the technical scheme of the application, and great convenience is brought to the actual use.

Description

[Technical Field]

[0001] This invention relates to the field of fasteners, and particularly to a self-locking female buckle and a push-button buckle. [Background Technology]

[0002] Buttons consisting of male and female clasps are a mainstream type of button currently widely used in various garments. Although buttons are just small accessories on clothing, their practicality, appearance, and other aspects directly affect the overall quality of the garment. Traditional buttons typically require both hands to fasten and unfasten, especially unfastening, which is inconvenient. For example, if the wearer is carrying something in one hand, they need to put the item down first, then pick it up again after the button is undone.

[0003] In view of the problem that existing buttons require two-handed operation, the inventors of this case conducted in-depth research on this problem, which led to the creation of this case. [Summary of the Invention]

[0004] The technical problem to be solved by the present invention is to provide a self-locking female buckle and a button buckle to solve the problem of inconvenience caused by the need to use both hands when the existing buttons are fastened and pulled open in the forward direction. The invention enables one-handed operation of the buttons in the forward direction, making operation convenient.

[0005] This invention is implemented as follows:

[0006] In a first aspect, a self-locking female buckle includes a spring cup having a male buckle receiving portion, a spring member disposed within the male buckle receiving portion for engaging the male buckle, and a pressing structure connected to the spring member for applying pressure to deform the spring member and disengage the male buckle; the spring member includes a plurality of annularly arranged self-locking pieces for holding the male buckle.

[0007] Furthermore, the spring member also includes a bottom connecting piece, and a plurality of the self-locking pieces are spaced around the outer edge of the bottom connecting piece.

[0008] Furthermore, the bottom connecting piece has a connecting hole in the middle for connecting with the pressing structure.

[0009] Furthermore, the self-locking piece includes an upright portion connected to the bottom connecting piece and a retaining portion extending inward from the upright portion.

[0010] Furthermore, several of the self-locking pieces are arranged at equal intervals around the outer edge of the bottom connecting piece.

[0011] Furthermore, the spring element includes eight self-locking plates.

[0012] Furthermore, the spring is a stainless steel spring.

[0013] Furthermore, the pressing structure extends from the back of the slingshot cup into the male buckle receiving part, and the extended end of the pressing structure is sleeved in the connecting hole.

[0014] Furthermore, the pressing structure includes a sleeve portion for engaging with the connecting hole, a pressing portion for performing a pressing operation, and a first connecting portion connecting the sleeve portion and the pressing portion.

[0015] Furthermore, the upper edge of the first connecting portion abuts against the lower surface of the bottom connecting piece.

[0016] Furthermore, the sleeve portion is fitted onto the connecting hole, and the upper end of the sleeve portion is rolled outward to form a first rolled edge portion that abuts against the upper surface of the bottom connecting piece.

[0017] Furthermore, the pressing part is equipped with a pressing end cap.

[0018] Furthermore, the slingshot cup includes an outer shell having a receiving cup opening and a first snap bottom disposed within the outer shell; the first snap bottom has a receiving cavity for accommodating the spring member.

[0019] Furthermore, the bottom of the first buckle has a first insertion hole for the pressing structure to extend into the receiving cavity.

[0020] Furthermore, the accommodating cavity includes an upper cavity for the upper part of the spring member to deform and open, and a lower cavity for holding the lower part of the spring member after deformation and opening.

[0021] Furthermore, the upper end of the accommodating cavity abuts against the top wall of the outer shell.

[0022] Furthermore, the upper edge of the first buckle is provided with an outwardly extending portion that abuts against the inner sidewall and top wall of the outer casing.

[0023] Furthermore, the slingshot cup also includes a second buckle bottom located at the bottom of the outer shell; the first buckle bottom is fitted onto the second buckle bottom, and a buckle surface mounting portion for receiving the buckle surface is formed between the first buckle bottom and the second buckle bottom.

[0024] Furthermore, the bottom of the second buckle has an extension hole for the lower part of the first buckle to extend out.

[0025] Furthermore, the lower part of the first buckle bottom has a first conical portion extending out of the protruding hole.

[0026] Furthermore, the inner sidewall of the second buckle is formed with a step for supporting the first buckle.

[0027] Furthermore, the outer side of the first buckle is provided with a first support portion that is supported on the step.

[0028] Furthermore, the first support portion has a downward-facing first protrusion on one side near the first cone portion, and a rolled edge guide groove is formed between the first protrusion and the first cone portion.

[0029] Furthermore, the inner bottom of the second buckle bottom is provided with an upward second protrusion at the upper edge of the protrusion hole, and the inner bottom of the second buckle bottom, the second protrusion, the first protrusion and the rolled edge guide groove together form the buckle surface mounting part.

[0030] Furthermore, the edge-rolling guide groove is provided with several edge-rolling cutting sections along the edge-rolling direction.

[0031] Furthermore, the edge-rolling guide groove is provided with 6 edge-rolling cutting sections.

[0032] Furthermore, the inner bottom of the second buckle is provided with a second support part to prevent rotation.

[0033] Furthermore, it also includes a fastening surface; the fastening surface includes a first face, a second rolled edge formed within the fastening surface mounting portion, and a second connecting portion connecting the first face and the second rolled edge.

[0034] Furthermore, a second insertion hole is formed inside the buckle surface for the pressing structure to extend into.

[0035] Furthermore, a first fabric clamping space is formed between the first face and the slingshot cup.

[0036] Secondly, a self-locking button buckle includes a male buckle and the aforementioned female buckle; the male buckle includes a buckle bead and a buckle foot connecting the buckle bead; the buckle bead has a slot for the self-locking piece to be engaged.

[0037] Furthermore, the buckle includes a buckle base plate and a column erected in the middle of the buckle base plate; the slot is located at the lower part of the column.

[0038] Furthermore, a second cone is formed on the upper part of the column.

[0039] Furthermore, the inside of the buckle bead has a buckle mounting portion for receiving the buckle foot.

[0040] Furthermore, the buckle includes a second face, a third rolled edge portion that is engaged within the buckle mounting portion, and a third connecting portion that connects the second face and the third rolled edge portion.

[0041] Furthermore, a second fabric clamping space is formed between the second face and the button bead.

[0042] The advantages of this invention are as follows: a spring element is installed inside the slingshot cup with a male buckle receiving portion, and the spring element includes several annularly arranged self-locking pieces for holding the male buckle. Simultaneously, the spring element is connected to a pressing structure for applying pressure to deform and disengage the male buckle. The male buckle's clasp has a groove for the self-locking pieces to engage. Therefore, in practical use, if it is necessary to fasten the female and male buckles, the wearer only needs to apply gentle pressure with one hand to press the male buckle's clasp into the slingshot cup; if it is necessary to unfasten the female and male buckles, the wearer only needs to apply pressure with one hand to the pressing structure and pull out the male buckle. Thus, the technical solution of this invention can effectively achieve single-handed forward fastening and forward unfastening of buttons, greatly facilitating practical use. [Attached Image Description]

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0044] Figure 1 This is one of the three-dimensional structural schematic diagrams of a self-locking female buckle according to the present invention;

[0045] Figure 2 This is the second three-dimensional structural schematic diagram of a self-locking female buckle according to the present invention;

[0046] Figure 3 This is one of the three-dimensional structural diagrams of the first bottom in this invention;

[0047] Figure 4 This is the second three-dimensional structural diagram of the first bottom in this invention;

[0048] Figure 5 This is one of the three-dimensional structural diagrams of the second bottom in this invention;

[0049] Figure 6 This is the second three-dimensional structural diagram of the second bottom in this invention;

[0050] Figure 7 This is a three-dimensional structural diagram of the spring component in this invention;

[0051] Figure 8 This is a three-dimensional structural diagram of the pressing structure in this invention;

[0052] Figure 9 This is a three-dimensional structural diagram of a self-locking female buckle of the present invention in use;

[0053] Figure 10 This is a cross-sectional view of a self-locking nut of the present invention when the spring is in the locked state;

[0054] Figure 11 This is a cross-sectional view of a self-locking nut of the present invention when the spring is in the open state;

[0055] Figure 12 This is an exploded view of a self-locking female buckle of the present invention in use.

[0056] Figure 13 This is one of the three-dimensional structural diagrams of the bead in this invention;

[0057] Figure 14 This is the second three-dimensional structural diagram of the bead in this invention;

[0058] Figure 15 This is a three-dimensional structural diagram of the male buckle in the usage state in this invention;

[0059] Figure 16 This is a cross-sectional view of the male buckle in the present invention in its use state;

[0060] Figure 17 This is an exploded view of the male buckle in the present invention in its use state.

[0061] Explanation of reference numerals in the attached figures:

[0062] 100-Female buckle, 200-Male buckle, 300-Fabric, 1-Slingshot cup, 11-Outer shell, 111-Receiving cup opening, 12-First buckle bottom, 121-Accommodating cavity, 1211-Upper cavity, 1212-Lower cavity, 122-First insertion hole, 123-Outer extension, 124-First cone, 125-First support, 1251-First protrusion, 126-Hem guide groove, 127-Hem cutting part, 13-Second buckle bottom, 131-Extension hole, 132-Step, 133-Second protrusion, 134-Second support, 14-Face buckle mounting part, 2-Spring element, 21-Self-locking piece, 211-Upright part 212-Holding part, 22-Bottom connecting piece, 221-Connecting hole, 3-Pressing structure, 31-Sleeve part, 311-First rolled edge part, 32-Pressing part, 321-Pressing end cap, 33-First connecting part, 4-Male buckle receiving part, 5-Face buckle, 51-First face part, 52-Second rolled edge part, 53-Second connecting part, 54-Second insertion hole, 6-First fabric clamping space, 7-Buck bead, 71-Card slot, 72-Buck bead base plate, 73-Post, 731-Second cone part, 74-Buck foot mounting part, 8-Buck foot, 81-Second face part, 82-Third rolled edge part, 83-Third connecting part, 9-Second fabric clamping space.

Detailed Implementation Methods

[0063] Example 1

[0064] Please see Figures 1 to 12As shown, the present invention provides a self-locking female buckle 100, comprising a slingshot cup 1 having a male buckle receiving portion 4, a spring member 2 disposed within the male buckle receiving portion 4 for engaging the male buckle 200, and a pressing structure 3 connected to the spring member 2 for applying pressure to deform the spring member 2 and disengage the male buckle 200; the spring member 2 includes a plurality of annularly arranged self-locking pieces 21 for holding the male buckle 200.

[0065] This invention employs a spring member 2 installed inside a slingshot cup 1 with a male buckle receiving part 4. The spring member 2 includes several ring-shaped self-locking pieces 21 for holding the male buckle 200. Simultaneously, the spring member 2 is connected to a pressing structure 3 for applying pressure to deform and disengage the male buckle 200. Therefore, in practical use, if it is necessary to fasten the female buckle 100 and the male buckle 200, the wearer only needs to apply gentle pressure with one hand to press the male buckle 200 into the slingshot cup 1. Under the pressure of the male buckle 200, the self-locking pieces 21 on the spring member 2 move outwards. The male buckle 200 is opened to enter the spring member 2. As the male buckle 200 continues to be pressed in, the self-locking piece 21 will return to its original position and lock into the slot of the male buckle 200, thereby achieving the purpose of fastening and self-locking. If it is necessary to unfasten the female buckle 100 and the male buckle 200, the wearer only needs to apply pressure to the pressing structure 3 with one hand to make the self-locking piece 21 of the spring member 2 open outward under the pressure and disengage the male buckle 200. At the same time, the wearer can gently pull the male buckle 200 outward to achieve the purpose of unfastening. The self-locking piece 21 will automatically return to its original position after the male buckle 200 is pulled out. Therefore, the technical solution of the present invention can effectively realize the one-handed forward fastening and forward unfastening operation of the button, which brings great convenience to practical use.

[0066] In this invention, the spring member 2 further includes a bottom connecting piece 22, and a plurality of self-locking pieces 21 are spaced around the outer edge of the bottom connecting piece 22. By connecting the plurality of self-locking pieces 21 together through the bottom connecting piece 22, it is convenient for the plurality of self-locking pieces 21 to open simultaneously when external pressure is applied to the bottom connecting piece 22, or for the plurality of self-locking pieces 21 to return to their positions simultaneously after the external pressure is removed; the spacing of the plurality of self-locking pieces 21 ensures that each locking piece 21 does not affect the others during the opening process.

[0067] In this invention, to facilitate the connection between the pressing structure 3 and the bottom connecting piece 22, a connecting hole 221 for connecting with the pressing structure 3 is provided in the middle of the bottom connecting piece 22. Meanwhile, to ensure uniform force during pressing, the connecting hole 221 is positioned at the center point of the bottom connecting piece 22.

[0068] In this invention, the self-locking piece 21 includes an upright portion 211 connecting the bottom connecting piece 22 and a retaining portion 212 extending inward from the upright portion 211. During operation, when external pressure is applied to lift the middle of the bottom connecting piece 22 upward, the upright portion 211 located at the outer edge of the bottom connecting piece 22 will open outward to release the latch; when external pressure is applied to the male buckle 200 to push it in, the upright portion 211 will contract inward to engage the retaining portion 212 into the slot; when the external pressure disappears, the upright portion 211 will return to its original position.

[0069] In this invention, in order to make the force more uniform and facilitate the fastening or unfastening of the male buckle 200, a plurality of self-locking pieces 21 are arranged at equal intervals around the outer edge of the bottom connecting piece 22.

[0070] In this invention, in order to better lock the male buckle 200 and ensure that excessive external pressure is not required when fastening or unfastening, the spring member 2 includes 8 self-locking pieces 21.

[0071] In this invention, in order to ensure that the spring component 2 can deform better under the action of external pressure, and can quickly and automatically return to its original position when the external pressure disappears, the spring component 2 is a stainless steel spring component.

[0072] In this invention, the pressing structure 3 extends from the back of the slingshot cup 1 into the male buckle receiving part 4, and the extended end of the pressing structure 3 is sleeved in the connecting hole 221, so as to press the spring member 2 inward from the back of the slingshot cup 1.

[0073] In this invention, in order to realize the pressing operation, the pressing structure 3 includes a sleeve part 31 for engaging with the connecting hole 221, a pressing part 32 for performing the pressing operation, and a first connecting part 33 connecting the sleeve part 31 and the pressing part 32.

[0074] In this invention, the upper edge of the first connecting part 33 abuts against the lower surface of the bottom connecting piece 22 to ensure that the first connecting part 33 will not pass through the connecting hole 221 during the pressing process.

[0075] In this invention, the sleeve portion 31 is sleeved on the connecting hole 221, and the upper end of the sleeve portion 31 is rolled outward to form a first rolled edge portion 311 that abuts against the upper surface of the bottom connecting piece 22. By having the first rolled edge portion 311 abut against the upper surface of the bottom connecting piece 22, while the upper edge of the first connecting portion 33 abuts against the lower surface of the bottom connecting piece 22, it is ensured that the pressing structure 3 and the bottom connecting piece 22 are tightly locked together.

[0076] In this invention, in order to facilitate pressing operations, the pressing part 32 is provided with a pressing end cap 321.

[0077] In this invention, the slingshot cup 1 includes an outer shell 11 with a receiving cup opening 111 and a first buckle bottom 12 disposed within the outer shell 11; the first buckle bottom 12 has a receiving cavity 121 for accommodating the spring member 2. In use, the male buckle 200 is snapped in or pulled out through the receiving cup opening 111, and the spring member 2 placed in the receiving cavity 121 engages or disengages the male buckle 200.

[0078] In this invention, in order to facilitate the pressing structure 3 to extend from the back of the slingshot cup 1 into the receiving cavity 121, the bottom of the first buckle 12 has a first insertion hole 122 for the pressing structure 3 to extend into the receiving cavity 121.

[0079] In this invention, the receiving cavity 121 includes an upper cavity 1211 for the upper part of the spring member 2 to deform and open, and a lower cavity 1212 for holding the lower part of the spring member 2 after deformation and opening. After the spring member 2 is placed in the receiving cavity 121, there is a large gap between the upper part of the spring member 2 and the cavity wall of the upper cavity 1211 to facilitate the self-locking piece 21 to open outward; the gap between the lower part of the spring member 2 and the cavity wall of the lower cavity 1212 is small to ensure that when the self-locking piece 21 is opened enough to allow the male buckle 200 to engage or be pulled out, the self-locking piece 21 can abut against the cavity wall of the lower cavity 1212. When in use, when external pressure is applied to press the pressing structure 3, the pressing structure 3 pushes the middle part of the bottom connecting piece 22 of the spring member 2 upward, and the outer edge of the bottom connecting piece 22 tilts downward, thereby opening the upper part of the self-locking piece 21 outward, so as to facilitate the fastener 200 to be fastened or pulled out; when the external pressure is removed, the spring member 2 returns to its original position under the action of elastic force, and returns to the self-locking state.

[0080] In this invention, the upper end of the accommodating cavity 121 abuts against the top wall of the outer shell 11 to prevent the first buckle 12 from loosening during the pressing of the spring member 2 by the pressing structure 3.

[0081] In this invention, the upper edge of the first buckle 12 is provided with an outwardly extending portion 123 that abuts against the inner sidewall and top wall of the outer casing 11. By designing the first buckle 12 to have an outwardly extending portion 123, and making the outwardly extending portion 123 abut against the inner sidewall and top wall of the outer casing 11, it is ensured that the first buckle 12 can be tightly locked inside the outer casing 11 after installation, without loosening.

[0082] In this invention, in order to facilitate the installation of the face buckle 5, the slingshot cup 1 further includes a second buckle bottom 13 disposed at the bottom of the outer shell 11; the first buckle bottom 12 is sleeved on the second buckle bottom 13, and a face buckle mounting part 14 for receiving the face buckle 5 is formed between the first buckle bottom 12 and the second buckle bottom 13.

[0083] In this invention, in order to facilitate the pressing structure 3 to extend from the back of the slingshot cup 1 into the receiving cavity 121 and to facilitate the formation of the buckle mounting part 14, the bottom of the second buckle bottom 13 has an extension hole 131 for the lower part of the first buckle bottom 12 to extend out.

[0084] In this invention, the lower part of the first buckle bottom 12 has a first conical portion 124 extending out of the protrusion hole 131. The design of the first conical portion 124 facilitates the guidance of the buckle surface 5 into the buckle surface mounting portion 14.

[0085] In this invention, in order to facilitate the formation of the buckle mounting portion 14, the inner sidewall of the second buckle bottom 13 is formed with a step 132 for supporting the first buckle bottom 12.

[0086] In this invention, the outer side of the first buckle bottom 12 is provided with a first support portion 125 supported on the step 132. The upper part of the first buckle bottom 12 is supported by the step 132 and the first support portion 125. The lower part of the first buckle bottom 12 forms a first cone portion 124. Therefore, the buckle surface mounting portion 14 is formed exactly between the first cone portion 124 and the inner bottom of the second buckle bottom 13.

[0087] In this invention, the first support portion 125 has a downward-facing first protrusion 1251 circumferentially provided on one side near the first conical portion 124, and a rolled edge guide groove 126 is formed between the first protrusion 1251 and the first conical portion 124. The design of the rolled edge guide groove 126 allows the buckle 5 to be inserted into the buckle mounting portion 14 when the buckle 5 is driven into the buckle mounting portion 14; the driven end of the buckle 5 is guided by the rolled edge guide groove 126 to form a rolled edge and be secured within the buckle mounting portion 14.

[0088] In this invention, the inner bottom of the second buckle base 13 is provided with an upward-facing second protrusion 133 at the upper edge of the protrusion hole 131, and the inner bottom of the second buckle base 13, the second protrusion 133, the first protrusion 1251, and the rolled edge guide groove 126 together form the buckle mounting portion 14. The second protrusion 133 is used to block the rolled edge formed when the buckle 5 is inserted, so as to prevent the buckle 5 from falling off.

[0089] In this invention, the edge-rolling guide groove 126 is provided with a plurality of edge-rolling cutting portions 127 along the edge-rolling direction. During the process of inserting the face buckle 5 into the face buckle mounting portion 14, the edge-rolling cutting portions 127 can cut the insertion end to ensure that the insertion end of the face buckle 5 is better turned outward to form an edge.

[0090] In this invention, in order to better achieve the curling, the curling guide groove 126 is provided with 6 curling cutting parts 127.

[0091] In this invention, in order to prevent the buckle surface 5 from rotating, the inner bottom of the second buckle bottom 13 is provided with a second support part 134 for preventing rotation.

[0092] In this invention, the female buckle 100 further includes a buckle surface 5; the buckle surface 5 includes a first face 51, a second rolled edge portion 52 formed within the buckle surface mounting portion 14, and a second connecting portion 53 connecting the first face 51 and the second rolled edge portion 52. The second rolled edge portion 52 can be secured within the buckle surface mounting portion 14 by the second support portion 134 to ensure that the buckle surface 5 does not rotate.

[0093] In this invention, the inside of the buckle surface 5 is formed with a second insertion hole 54 for the pressing structure 3 to extend into. In practice, the pressing structure 3 is inserted from the second insertion hole 54 until the pressing part 32 is exactly inside the second insertion hole 54. This design makes the entire female buckle 100 structure look more compact and beautiful, and also facilitates the pressing operation.

[0094] In this invention, a first fabric clamping space 6 is formed between the first face 51 and the slingshot cup 1. In practical use, the pressing structure 3 needs to be passed through the hole on the fabric 300 first, and then the fastening face 5 is inserted into the fastening face mounting part 14, thereby clamping the fabric 300 between the first face 51 of the fastening face 5 and the slingshot cup 1, that is, achieving a fixed connection between the female buckle 100 and the fabric 300.

[0095] The female buckle 100 in this invention is mainly used in bags or clothing; except for the spring 2 which is made of stainless steel, the first buckle bottom 12, the second buckle bottom 13, the pressing structure 3 and the face buckle 5 can be made of metal or alloy materials, and the outer shell 11 and the pressing end cap 321 can be made of plastic.

[0096] Example 2

[0097] Please see Figures 1 to 17 As shown, the present invention provides a self-locking button buckle, including a male buckle 200 and the aforementioned female buckle 100; the male buckle 200 includes a buckle bead 7 and a buckle foot 8 connecting the buckle bead 7; the buckle bead 7 has a slot 71 formed on it for the self-locking piece 21 to be fastened into.

[0098] This invention employs a spring member 2 disposed within a slingshot cup 1 having a male buckle receiving portion 4. The spring member 2 includes several annularly arranged self-locking tabs 21 for holding the male buckle 200. Simultaneously, the spring member 2 is connected to a pressing structure 3 for applying pressure to deform and disengage the male buckle 200. The buckle bead 7 of the male buckle 200 has a groove 71 for the self-locking tabs 21 to engage. Therefore, in practical use, if it is necessary to fasten the female buckle 100 and the male buckle 200, the wearer only needs to apply gentle pressure with one hand to press the buckle bead 7 of the male buckle 200 into the slingshot cup 1. Under the pressure of the snap bead 7 of the male buckle 200, the self-locking piece 21 opens outward, allowing the snap bead 7 to enter the spring member 2. As the snap bead 7 continues to be pressed in, the self-locking piece 21 returns to its original position and locks into the slot 71 of the snap bead 7, thus achieving the purpose of fastening and self-locking. If it is necessary to unfasten the female buckle 100 and the male buckle 200, the wearer only needs to apply pressure to the pressing structure 3 with one hand, causing the self-locking piece 21 of the spring member 2 to open outward under pressure and disengage the snap bead 7. At the same time, the wearer can gently pull the snap bead 7 outward to achieve the purpose of unfastening. The self-locking piece 21 automatically returns to its original position after the snap bead 7 is pulled out. Therefore, the technical solution of the present invention can effectively realize the one-handed forward fastening and forward unfastening operation of buttons, bringing great convenience to practical use.

[0099] In this invention, the buckle 7 includes a buckle base plate 72 and a post 73 erected in the middle of the buckle base plate 72; the slot 71 is provided at the lower part of the post 73. By placing the slot 71 at the lower part of the post 73, it is possible to better fasten the entire post 73 into the female buckle 100.

[0100] In this invention, in order to facilitate the fastening operation of the male buckle 200, a second cone portion 731 is formed on the upper part of the column 73.

[0101] In this invention, in order to facilitate the installation of the buckle 8, the buckle bead 7 has a buckle mounting part 74 for receiving the buckle 8 inside.

[0102] In this invention, the buckle 8 includes a second face 81, a third rolled edge portion 82 that is fitted into the buckle mounting portion 74, and a third connecting portion 83 that connects the second face 81 and the third rolled edge portion 82.

[0103] In this invention, a second fabric clamping space 9 is formed between the second face 81 and the buckle 7. In practical use, the buckle 7 needs to be placed on one side of the fabric 300, and then the buckle foot 8 is inserted from the other side of the fabric 300 into the buckle foot mounting part 74, thereby clamping the fabric 300 between the second face 81 and the buckle 7, that is, achieving a fixed connection between the male buckle 200 and the fabric 300.

[0104] In this invention, the female buckle 100 includes a slingshot cup 1 with a male buckle receiving portion 4, a spring member 2 disposed in the male buckle receiving portion 4 for engaging the male buckle 200, and a pressing structure 3 connected to the spring member 2 for applying pressure to deform the spring member 2 and disengage the male buckle 200; the spring member 2 includes a plurality of ring-shaped self-locking pieces 21 for holding the male buckle 200.

[0105] In this invention, the spring member 2 further includes a bottom connecting piece 22, and a plurality of self-locking pieces 21 are spaced around the outer edge of the bottom connecting piece 22. By connecting the plurality of self-locking pieces 21 together through the bottom connecting piece 22, it is convenient for the plurality of self-locking pieces 21 to open simultaneously when external pressure is applied to the bottom connecting piece 22, or for the plurality of self-locking pieces 21 to return to their positions simultaneously after the external pressure is removed; the spacing of the plurality of self-locking pieces 21 ensures that each locking piece 21 does not affect the others during the opening process.

[0106] In this invention, to facilitate the connection between the pressing structure 3 and the bottom connecting piece 22, a connecting hole 221 for connecting with the pressing structure 3 is provided in the middle of the bottom connecting piece 22. Meanwhile, to ensure uniform force during pressing, the connecting hole 221 is positioned at the center point of the bottom connecting piece 22.

[0107] In this invention, the self-locking piece 21 includes an upright portion 211 connecting the bottom connecting piece 22 and a retaining portion 212 extending inward from the upright portion 211. During operation, when external pressure is applied to lift the middle of the bottom connecting piece 22 upward, the upright portion 211 located at the outer edge of the bottom connecting piece 22 will open outward to release the latch; when external pressure is applied to the male buckle 200 to push it in, the upright portion 211 will contract inward to engage the retaining portion 212 into the slot; when the external pressure disappears, the upright portion 211 will return to its original position.

[0108] In this invention, in order to make the force more uniform and facilitate the fastening or unfastening of the male buckle 200, a plurality of self-locking pieces 21 are arranged at equal intervals around the outer edge of the bottom connecting piece 22.

[0109] In this invention, in order to better lock the male buckle 200 and ensure that excessive external pressure is not required when fastening or unfastening, the spring member 2 includes 8 self-locking pieces 21.

[0110] In this invention, in order to ensure that the spring component 2 can deform better under the action of external pressure, and can quickly and automatically return to its original position when the external pressure disappears, the spring component 2 is a stainless steel spring component.

[0111] In this invention, the pressing structure 3 extends from the back of the slingshot cup 1 into the male buckle receiving part 4, and the extended end of the pressing structure 3 is sleeved in the connecting hole 221, so as to press the spring member 2 inward from the back of the slingshot cup 1.

[0112] In this invention, in order to realize the pressing operation, the pressing structure 3 includes a sleeve part 31 for engaging with the connecting hole 221, a pressing part 32 for performing the pressing operation, and a first connecting part 33 connecting the sleeve part 31 and the pressing part 32.

[0113] In this invention, the upper edge of the first connecting part 33 abuts against the lower surface of the bottom connecting piece 22 to ensure that the first connecting part 33 will not pass through the connecting hole 221 during the pressing process.

[0114] In this invention, the sleeve portion 31 is sleeved on the connecting hole 221, and the upper end of the sleeve portion 31 is rolled outward to form a first rolled edge portion 311 that abuts against the upper surface of the bottom connecting piece 22. By having the first rolled edge portion 311 abut against the upper surface of the bottom connecting piece 22, while the upper edge of the first connecting portion 33 abuts against the lower surface of the bottom connecting piece 22, it is ensured that the pressing structure 3 and the bottom connecting piece 22 are tightly locked together.

[0115] In this invention, in order to facilitate pressing operations, the pressing part 32 is provided with a pressing end cap 321.

[0116] In this invention, the slingshot cup 1 includes an outer shell 11 with a receiving cup opening 111 and a first buckle bottom 12 disposed within the outer shell 11; the first buckle bottom 12 has a receiving cavity 121 for accommodating the spring member 2. In use, the male buckle 200 is snapped in or pulled out through the receiving cup opening 111, and the spring member 2 placed in the receiving cavity 121 engages or disengages the male buckle 200.

[0117] In this invention, in order to facilitate the pressing structure 3 to extend from the back of the slingshot cup 1 into the receiving cavity 121, the bottom of the first buckle 12 has a first insertion hole 122 for the pressing structure 3 to extend into the receiving cavity 121.

[0118] In this invention, the receiving cavity 121 includes an upper cavity 1211 for the upper part of the spring member 2 to deform and open, and a lower cavity 1212 for holding the lower part of the spring member 2 after deformation and opening. After the spring member 2 is placed in the receiving cavity 121, there is a large gap between the upper part of the spring member 2 and the cavity wall of the upper cavity 1211 to facilitate the self-locking piece 21 to open outward; the gap between the lower part of the spring member 2 and the cavity wall of the lower cavity 1212 is small to ensure that when the self-locking piece 21 is opened enough to allow the male buckle 200 to engage or be pulled out, the self-locking piece 21 can abut against the cavity wall of the lower cavity 1212. When in use, when external pressure is applied to press the pressing structure 3, the pressing structure 3 pushes the middle part of the bottom connecting piece 22 of the spring member 2 upward, and the outer edge of the bottom connecting piece 22 tilts downward, thereby opening the upper part of the self-locking piece 21 outward, so as to facilitate the fastener 200 to be fastened or pulled out; when the external pressure is removed, the spring member 2 returns to its original position under the action of elastic force, and returns to the self-locking state.

[0119] In this invention, the upper end of the accommodating cavity 121 abuts against the top wall of the outer shell 11 to prevent the first buckle 12 from loosening during the pressing of the spring member 2 by the pressing structure 3.

[0120] In this invention, the upper edge of the first buckle 12 is provided with an outwardly extending portion 123 that abuts against the inner sidewall and top wall of the outer casing 11. By designing the first buckle 12 to have an outwardly extending portion 123, and making the outwardly extending portion 123 abut against the inner sidewall and top wall of the outer casing 11, it is ensured that the first buckle 12 can be tightly locked inside the outer casing 11 after installation, without loosening.

[0121] In this invention, in order to facilitate the installation of the face buckle 5, the slingshot cup 1 further includes a second buckle bottom 13 disposed at the bottom of the outer shell 11; the first buckle bottom 12 is sleeved on the second buckle bottom 13, and a face buckle mounting part 14 for receiving the face buckle 5 is formed between the first buckle bottom 12 and the second buckle bottom 13.

[0122] In this invention, in order to facilitate the pressing structure 3 to extend from the back of the slingshot cup 1 into the receiving cavity 121 and to facilitate the formation of the buckle mounting part 14, the bottom of the second buckle bottom 13 has an extension hole 131 for the lower part of the first buckle bottom 12 to extend out.

[0123] In this invention, the lower part of the first buckle bottom 12 has a first conical portion 124 extending out of the protrusion hole 131. The design of the first conical portion 124 facilitates the guidance of the buckle surface 5 into the buckle surface mounting portion 14.

[0124] In this invention, in order to facilitate the formation of the buckle mounting portion 14, the inner sidewall of the second buckle bottom 13 is formed with a step 132 for supporting the first buckle bottom 12.

[0125] In this invention, the outer side of the first buckle bottom 12 is provided with a first support portion 125 supported on the step 132. The upper part of the first buckle bottom 12 is supported by the step 132 and the first support portion 125. The lower part of the first buckle bottom 12 forms a first cone portion 124. Therefore, the buckle surface mounting portion 14 is formed exactly between the first cone portion 124 and the inner bottom of the second buckle bottom 13.

[0126] In this invention, the first support portion 125 has a downward-facing first protrusion 1251 circumferentially provided on one side near the first conical portion 124, and a rolled edge guide groove 126 is formed between the first protrusion 1251 and the first conical portion 124. The design of the rolled edge guide groove 126 allows the buckle 5 to be inserted into the buckle mounting portion 14 when the buckle 5 is driven into the buckle mounting portion 14; the driven end of the buckle 5 is guided by the rolled edge guide groove 126 to form a rolled edge and be secured within the buckle mounting portion 14.

[0127] In this invention, the inner bottom of the second buckle base 13 is provided with an upward-facing second protrusion 133 at the upper edge of the protrusion hole 131, and the inner bottom of the second buckle base 13, the second protrusion 133, the first protrusion 1251, and the rolled edge guide groove 126 together form the buckle mounting portion 14. The second protrusion 133 is used to block the rolled edge formed when the buckle 5 is inserted, so as to prevent the buckle 5 from falling off.

[0128] In this invention, the edge-rolling guide groove 126 is provided with a plurality of edge-rolling cutting portions 127 along the edge-rolling direction. During the process of inserting the face buckle 5 into the face buckle mounting portion 14, the edge-rolling cutting portions 127 can cut the insertion end to ensure that the insertion end of the face buckle 5 is better turned outward to form an edge.

[0129] In this invention, in order to better achieve the curling, the curling guide groove 126 is provided with 6 curling cutting parts 127.

[0130] In this invention, in order to prevent the buckle surface 5 from rotating, the inner bottom of the second buckle bottom 13 is provided with a second support part 134 for preventing rotation.

[0131] In this invention, the female buckle 100 further includes a buckle surface 5; the buckle surface 5 includes a first face 51, a second rolled edge portion 52 formed within the buckle surface mounting portion 14, and a second connecting portion 53 connecting the first face 51 and the second rolled edge portion 52. The second rolled edge portion 52 can be secured within the buckle surface mounting portion 14 by the second support portion 134 to ensure that the buckle surface 5 does not rotate.

[0132] In this invention, the inside of the buckle surface 5 is formed with a second insertion hole 54 for the pressing structure 3 to extend into. In practice, the pressing structure 3 is inserted from the second insertion hole 54 until the pressing part 32 is exactly inside the second insertion hole 54. This design makes the entire female buckle 100 structure look more compact and beautiful, and also facilitates the pressing operation.

[0133] In this invention, a first fabric clamping space 6 is formed between the first face 51 and the slingshot cup 1. In practical use, the pressing structure 3 needs to be passed through the hole on the fabric 300 first, and then the fastening face 5 is inserted into the fastening face mounting part 14, thereby clamping the fabric 300 between the first face 51 of the fastening face 5 and the slingshot cup 1, that is, achieving a fixed connection between the female buckle 100 and the fabric 300.

[0134] The buttons in this invention are mainly used in bags or clothing; except for the spring 2 which is made of stainless steel, the first buckle bottom 12, the second buckle bottom 13, the pressing structure 3, the face buckle 5, and the male buckle 200 can be made of metal or alloy materials, and the outer shell 11 and the pressing end cap 321 can be made of plastic.

[0135] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A self-locking female buckle, characterized in that: The device includes a slingshot cup with a male buckle receiving portion, a spring member disposed within the male buckle receiving portion for engaging the male buckle, and a pressing structure connected to the spring member for applying pressure to deform the spring member and disengage the male buckle; the spring member includes several ring-shaped self-locking pieces for holding the male buckle. The spring component also includes a bottom connecting piece, and a plurality of the self-locking pieces are spaced around the outer edge of the bottom connecting piece. The bottom connecting piece has a connecting hole in the middle for connecting with the pressing structure. The pressing structure extends from the back of the slingshot cup into the male buckle receiving part, and the extended end of the pressing structure is sleeved in the connecting hole; the pressing structure includes a sleeve part for sleeved with the connecting hole, a pressing part for pressing operation, and a first connecting part connecting the sleeve part and the pressing part. The upper edge of the first connecting part abuts against the lower surface of the bottom connecting piece. The sleeve part is sleeved on the connecting hole, and the upper end of the sleeve part is rolled outward to form a first rolled edge part abutting against the upper surface of the bottom connecting piece. The pressing part is equipped with a pressing end cap. The slingshot cup includes an outer shell with a receiving opening and a first snap-on bottom disposed within the outer shell. The first snap-on bottom has a receiving cavity for accommodating the spring member, the receiving cavity including an upper cavity for the upper part of the spring member to deform and open, and a lower cavity for holding the lower part of the spring member after deformation and opening. The slingshot cup also includes a second snap-on bottom disposed at the bottom of the outer shell. The first snap-on bottom is fitted onto the second snap-on bottom, and a snap-on surface mounting portion for receiving the snap-on surface is formed between the first and second snap-on bottoms. The inner bottom of the second snap-on bottom is provided with a second support portion for preventing rotation. It also includes a snap-on surface, the snap-on surface including a first facet, a second rolled edge portion formed within the snap-on surface mounting portion, and a second connecting portion connecting the first facet and the second rolled edge portion.

2. The self-locking female buckle as described in claim 1, characterized in that: The self-locking piece includes an upright portion that connects to the bottom connecting piece and a retaining portion that extends inward from the upright portion.

3. A self-locking female buckle as described in claim 1, characterized in that: Several self-locking pieces are arranged at equal intervals around the outer edge of the bottom connecting piece.

4. A self-locking female buckle as described in claim 3, characterized in that: The spring component includes eight self-locking plates.

5. A self-locking female buckle as described in any one of claims 1-4, characterized in that: The spring component is a stainless steel spring component.

6. A self-locking female buckle as described in claim 5, characterized in that: The bottom of the first buckle has a first insertion hole for the pressing structure to extend into the receiving cavity.

7. A self-locking female buckle as described in claim 5, characterized in that: The upper end of the accommodating cavity abuts against the top wall of the outer shell.

8. A self-locking female buckle as described in claim 5, characterized in that: The upper edge of the first buckle is provided with an outwardly extending portion that abuts against the inner sidewall and top wall of the outer casing.

9. A self-locking female buckle as described in claim 5, characterized in that: The bottom of the second buckle has an extension hole for the lower part of the first buckle to extend out.

10. A self-locking female buckle as described in claim 9, characterized in that: The lower part of the first buckle has a first tapered portion that extends out of the protrusion hole.

11. A self-locking female buckle as described in claim 10, characterized in that: The inner wall of the second buckle has a step for supporting the first buckle.

12. A self-locking female buckle as described in claim 11, characterized in that: The outer side of the first buckle is provided with a first support part that is supported on the step.

13. A self-locking female buckle as described in claim 12, characterized in that: The first support portion has a downward-facing first protrusion on one side near the first cone portion, and a rolled edge guide groove is formed between the first protrusion and the first cone portion.

14. A self-locking female buckle as described in claim 13, characterized in that: The inner bottom of the second buckle bottom is provided with an upward second protrusion at the upper edge of the protrusion hole, and the inner bottom of the second buckle bottom, the second protrusion, the first protrusion and the rolled edge guide groove together form the buckle surface mounting part.

15. A self-locking female buckle as described in claim 14, characterized in that: The edge-rolling guide groove is provided with several edge-rolling cutting sections along the edge-rolling direction.

16. A self-locking female buckle as described in claim 15, characterized in that: The edge-rolling guide groove is provided with 6 edge-rolling cutting sections.

17. A self-locking female buckle as described in claim 16, characterized in that: The inside of the buckle surface has a second insertion hole for the pressing structure to extend into.

18. A self-locking female buckle as described in claim 17, characterized in that: A first fabric clamping space is formed between the first face and the slingshot cup.

19. A self-locking button buckle, characterized in that: It includes a male buckle and a female buckle as described in any one of claims 1-4 and 6-18; the male buckle includes a buckle bead and a buckle foot connecting the buckle bead; the buckle bead has a groove formed on it for the self-locking piece to be engaged.

20. A self-locking button buckle as described in claim 19, characterized in that: The buckle includes a buckle base plate and a column erected in the middle of the buckle base plate; the slot is located at the bottom of the column.

21. A self-locking button buckle as described in claim 20, characterized in that: The upper part of the column has a second cone-shaped section.

22. A self-locking button buckle as described in claim 21, characterized in that: The inside of the buckle bead has a buckle mounting part for receiving the buckle foot.

23. A self-locking button buckle as described in claim 22, characterized in that: The buckle includes a second face, a third rolled edge portion that is fitted into the buckle mounting portion, and a third connecting portion that connects the second face and the third rolled edge portion.

24. A self-locking button buckle as described in claim 23, characterized in that: A second fabric holding space is formed between the second face and the button bead.

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