Quick release buckle

Abstract

A quick-release buckle includes a release operating member, a first pull cord, and a second pull cord. The release operating member can rotate around a rotation center. A first guide surface and a second guide surface with different guide strokes are provided on the release operating member. The first pull cord is used to connect with a first connecting buckle, and the first pull cord is connected to the release operating member and passes through the first guide surface. The second pull cord is used to connect with a second connecting buckle, and the second pull cord is connected to the release operating member and passes through the second guide surface. When the release operating member is rotated around the rotation center, the first pull cord and the second pull cord have different movement strokes under the guidance of the first guide surface and the second guide surface, and can be linked to unlock the first connecting buckle and the second connecting buckle in sequence. The release operating member of the quick-release buckle of the present invention is unlocked by bending outward, and the first pull cord and the second pull cord can be led out from the same end of the release operating member. It is not only convenient to operate, but also beautiful in appearance and easy to sew and fix the pull cords. It has strong practicality and should be widely promoted.

Description

Technical Field

[0001] The present invention relates to a buckle, in particular to a quick-release buckle. Background Art

[0002] A quick-release bulletproof vest is made up of a front piece and a back piece. The front and back pieces of the vest are connected at the shoulders and waist respectively by connecting buckles. When it is necessary to take it off, the front and back pieces of the vest can be separated by unfastening each connecting buckle. When it is necessary to put it on, each connecting buckle can be connected one by one. Compared with ordinary bulletproof vests, this quick-release bulletproof vest is easier to put on and take off. However, it still requires the user to unlock each connecting buckle one by one, and usually requires the user to unlock it with both hands. Therefore, its unlocking method still needs to be improved to further increase the speed of putting on and taking off the bulletproof vest. In order to solve this technical problem, the applicant proposed the "Linked Quick-Release Device and Bulletproof Quick-Release Vest", and its application number is 2022106757804. In actual application, it was found that the structural design of the quick-release buckles pressing towards each other requires the pull wire to be led out from the upper and lower sides of the quick buckle. On the one hand, it is not beautiful, and on the other hand, it affects sewing, so it needs to be improved. Summary of the Invention

[0003] The present invention aims to solve the above problems and provides a novel quick-release buckle.

[0004] In order to solve the above problems, the present invention provides a quick-release buckle, characterized in that it includes a release operating member, a first pull wire and a second pull wire, the release operating member can rotate around a fixed rotation center, and a first guide surface and a second guide surface are provided on the release operating member, and the guiding strokes of the first guide surface and the second guide surface are different; the first pull wire is used to connect with the first connecting buckle, the first pull wire is connected to the release operating member and passes through the first guide surface; the second pull wire is used to connect with the second connecting buckle, the second pull wire is connected to the release operating member and passes through the second guide surface; when the release operating member is operated to rotate around the rotation center, the first pull wire and the second pull wire have different movement strokes under the guidance of the first guide surface and the second guide surface, and can link the first connecting buckle and the second connecting buckle to unlock in sequence.

[0005] Furthermore, a first wire pulling hole and a second wire pulling hole are provided on the unlocking operating member, the first wire pulling hole is connected to the first guide surface, and the second wire pulling hole is connected to the second guide surface; one end of the first wire pulling wire is limited in the first wire pulling hole, and the other end passes through the first guide surface and is connected to the first connecting buckle; one end of the second wire pulling wire is limited in the second wire pulling hole, and the other end passes through the second guide surface and is connected to the second connecting buckle.

[0006] Furthermore, the first pull wire hole and the second pull wire hole are located at the same end of the first guide surface and the second guide surface, and the first pull wire and the second pull wire are led out from the same end of the unlocking operating member and are respectively connected to the first connecting buckle and the second connecting buckle.

[0007] Furthermore, the curvature of the first guide surface is greater than the curvature of the second guide surface.

[0008] Furthermore, the unlocking operating member is rotatably connected to the shell, and the shell includes a shell and a buckle seat that are connected in a mating manner. The shell is provided with a hollow hole for the unlocking operating member to move. The buckle seat is provided with a connecting ear facing the hollow hole, and a rotating shaft is inserted on the connecting ear. The unlocking operating member is rotatably connected to the rotating shaft and can rotate around the rotating shaft.

[0009] Furthermore, a reset torsion spring for driving the release operating member to reset is provided between the release operating member and the rotating shaft. The reset torsion spring is sleeved on the rotating shaft, and the torsion arm of the reset torsion spring is connected to the release operating member and / or the housing and / or the buckle seat.

[0010] Furthermore, the unlocking operating member includes a first unlocking operating member and a second unlocking operating member, and the first unlocking operating member and the second unlocking operating member are respectively rotatably connected to the rotating shaft. An extension portion extending toward the second unlocking operating member is provided on the first unlocking operating member, and the extension portion is located between the second unlocking operating member and the buckle seat. When the first unlocking operating member is operated to rotate around the rotating shaft, the second unlocking operating member is driven by the extension portion and can rotate around the rotating shaft synchronously.

[0011] Furthermore, it also includes a mounting seat, a receiving groove is provided on the mounting seat, and limiting parts are provided on both sides of the receiving groove and are spaced apart from the bottom of the receiving groove. The limiting parts are spaced apart from each other to form a first opening, and one end of the receiving groove is open to form a socket. The shell can be inserted into the receiving groove along the socket and restricted by the limiting parts.

[0012] Furthermore, an elastic pressing portion is provided at the bottom of the accommodating groove, one end of the elastic pressing portion is connected to the mounting seat, and the other end extends out as a cantilever end and is elastic, and a positioning protrusion is provided on the elastic pressing portion; a buckle hole is provided on the buckle seat, and when the shell is inserted into the accommodating groove along the socket, the back of the shell squeezes the elastic pressing portion until the shell moves to the point where the buckle hole corresponds to the positioning protrusion, and the positioning protrusion is snapped into the buckle hole to keep the shell in the accommodating groove.

[0013] Furthermore, a first guiding inclined surface is provided on the positioning protrusion, and the first guiding inclined surface faces the direction of the socket.

[0014] The beneficial contribution of the present invention is that it effectively solves the above-mentioned problem. The quick-release buckle of the present invention is provided with a first guide surface and a second guide surface with different guide strokes on the release operating member. The first guide surface and the second guide surface can move the first pull wire and the second pull wire to different degrees. In this way, the first connecting buckle and the second connecting buckle connected to the first pull wire and the second pull wire can be pulled in sequence, thereby achieving the first connecting buckle and the second connecting buckle being unlocked in sequence. The release operating member of the quick-release buckle of the present invention is unlocked by bending outward, and the first pull wire and the second pull wire can be led out from the same end of the release operating member. It is not only convenient to operate, but also has an aesthetically pleasing appearance and is easy to sew and fix the pull wires. It has strong practicality and should be widely promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of Example 1.

[0016] Figure 2 It is a schematic diagram of the structural decomposition of Example 1.

[0017] Figure 3 It is a schematic diagram of the structural decomposition of Example 1.

[0018] Figure 4 Schematic diagram of the application of Example 2.

[0019] Figure 5 It is a structural diagram of Example 2.

[0020] Figure 6 It is a schematic diagram of the structural decomposition of Example 2.

[0021] Figure 7 It is a schematic diagram of the structural decomposition of Example 2.

[0022] Figure 8 It is a structural diagram of the unlocking operating part.

[0023] Figure symbols: unlocking operation member 10, first guide surface 11, second guide surface 12, first wire hole 13, second wire hole 14, first shaft hole 15, first unlocking operation member 16, extension portion 161, second unlocking operation member 17, torsion spring groove 18, card slot 19, wire hole 110, cover groove 111, cover 112, first pull wire 20, second pull wire 30, first connecting buckle 40, second connecting buckle 50, sleeve wire 61, core wire 62, shell 70, outer shell 71, Hollow hole 711, positioning column 712, passage groove 713, buckle seat 72, connecting ear 721, second rotating shaft hole 722, positioning hole 723, buckle hole 724, second guide slope 7241, rotating shaft 73, third pull wire hole 74, fourth pull wire hole 75, reset torsion spring 80, torsion arm 81, mounting seat 90, accommodating groove 91, socket 92, limiting portion 93, first opening 94, positioning portion 95, elastic pressing portion 96, positioning protrusion 97, first guide slope 971. DETAILED DESCRIPTION

[0024] The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0025] like Figures 1 to 8 As shown, the quick-release buckle of the present invention includes a release operating member 10, a first pull wire 20, and a second pull wire 30. The release operating member 10 can rotate around a fixed rotation center, making it convenient for the user to unlock it by prying it. A first guide surface 11 and a second guide surface 12 are provided on the release operating member 10. The guiding strokes of the first guide surface 11 and the second guide surface 12 are different, which are used to make the first pull wire 20 and the second pull wire 30 have different strokes. The first pull wire 20 is used to connect to a first connecting buckle 40, such as a waist buckle at the waist position, and the second pull wire 30 is used to connect to a second connecting buckle 50, such as a shoulder buckle at the shoulder position. The first pull wire 20 is connected to the release operating member 10 and is connected to the first connecting buckle 40 through the first guide surface 11. The second pull wire 30 is connected to the release operating member 10 and is connected to the second connecting buckle 50 through the second guide surface 12.

[0026] When the unlocking operating member 10 is operated to rotate around the rotation center, the first pull wire 20 and the second pull wire 30 will move along the first guide surface 11 and the second guide surface 12 respectively. Since the guiding strokes of the first guide surface 11 and the second guide surface 12 are different, the movement strokes of the first pull wire 20 and the second pull wire 30 will also be different during the rotation of the unlocking operating member 10, so that they can link the first connecting buckle 40 and the second connecting buckle 50 to unlock in sequence.

[0027] Furthermore, if Figure 8As shown, the curvature of the first guide surface 11 is greater than the curvature of the second guide surface 12. In this way, the first pull wire 20 is pulled to a greater extent than the second pull wire 30, so that the first connecting buckle 40 connected to the first pull wire 20 can be unlocked before the second connecting buckle 50 connected to the second pull wire 30, thereby realizing the successive unlocking of the first connecting buckle 40 and the second connecting buckle 50.

[0028] By operating the unlocking operating member 10 to rotate, the first pull wire 20 and the second pull wire 30 are driven to pass through different strokes, so that the first connecting buckle 40 and the second connecting buckle 50 can be unlocked in sequence.

[0029] Furthermore, if Figure 8 As shown, the first guide surface 11 can be set as a curved surface, and the second guide surface 12 can be set as a flat surface. The first guide surface 11 is raised relative to the second guide surface 12. In this way, the first connecting buckle 40 and the second connecting buckle 50 can be unlocked in sequence.

[0030] Furthermore, if Figure 2 、 Figure 8 、 Figure 6 As shown, a first pull wire hole 13 and a second pull wire hole 14 are provided on the unlocking operating member 10. The first pull wire hole 13 is connected to the first guide surface 11, and the second pull wire hole 14 is connected to the second guide surface 12. One end of the first pull wire 20 is confined in the first pull wire hole 13, and the other end is connected to the first connecting buckle 40 through the first guide surface 11. One end of the second pull wire 30 is confined in the second pull wire hole 14, and the other end is connected to the second connecting buckle 50 through the second guide surface 12. In this way, when the unlocking operating member 10 rotates, the first pull wire 20 and the second pull wire 30 will move through the first guide surface 11 and the second guide surface 12 as the unlocking operating member 10 rotates.

[0031] Furthermore, if Figures 1 to 7 As shown, the first pull wire hole 13 and the second pull wire hole 14 are located at the same end of the first guide surface 11 and the second guide surface 12, and the first pull wire 20 and the second pull wire 30 are led out from the same end of the unlocking operating member 10 and are respectively connected to the first connecting buckle 40 and the second connecting buckle 50. In this way, the distribution of the pull wires can be more beautiful and it is more conducive to sewing and fixing the pull wires.

[0032] The first pull wire 20 and the second pull wire 30 can be a sleeve structure or a non-sleeve structure, and can be specifically configured as needed. Figures 1 to 7As shown, the first pull wire 20 and the second pull wire 30 are preferably of a sleeve structure, that is, they include a sleeve wire 61 located on the outside and a core wire 62 located inside the sleeve wire 61, and the core wire 62 can move relative to the sleeve wire 61. When the first pull wire 20 and the second pull wire 30 use a sleeve structure, one end of the first pull wire 20 is restricted in the first pull wire hole 13, which means that the end of the core wire 62 of the first pull wire 20 is restricted in the first pull wire hole 13. Similarly, when one end of the second pull wire 30 is restricted in the second pull wire hole 14, it means that the end of the core wire 62 of the second pull wire 30 is restricted in the second pull wire hole 14; when the unlocking operating member 10 is rotated, the core wires 62 of the first pull wire 20 and the second pull wire 30 are displaced along with the unlocking operating member 10, while the sleeve wire 61 is fixed on the device and does not displace along with the unlocking operating member 10.

[0033] The number of the unlocking operating members 10 can be set as needed. Figure 1 As shown, a release operating member 10 may be provided. In some embodiments, as shown Figure 4 As shown, a plurality of release operating members 10 may be provided. When a plurality of release operating members 10 are provided, each release operating member 10 is provided with the first guide surface 11 and the second guide surface 12 .

[0034] Furthermore, if Figures 1 to 7 As shown, in order to allow the release operating member 10 to rotate around a fixed rotation center, the release operating member 10 is rotatably connected to the housing 70. The housing 70 includes a shell 71 and a buckle seat 72 that are connected in a mating manner. A mounting space for the release operating member 10 is formed between the shell 71 and the buckle seat 72. The shell 71 is provided with a hollow hole 711 through which the release operating member 10 can move, and the buckle seat 72 is provided with a connecting ear portion 721 facing the hollow hole 711. The connecting ear portion 721 has any shape and is provided with a second shaft hole 722, into which a shaft 73 is inserted. The two ends of the shaft 73 can be inserted into the buckle seat 72 or the shell 71, and the specific arrangement can be determined according to needs. Preferably, the two ends of the shaft 73 are inserted into the shell 71. The unlocking member 10 is provided with a first shaft hole 15 which is sleeved on the shaft 73 and located at the hollow hole 711. The unlocking member 10 can rotate around the shaft 73. The shaft 73 forms the rotation center of the unlocking member 10.

[0035] like Figure 2 、 Figure 3 、 Figure 6 、 Figure 7As shown, in order to drive the release operating member 10 to rotate and reset, a return torsion spring 80 is provided between the release operating member 10 and the rotating shaft 73. The return torsion spring 80 is sleeved on the rotating shaft 73, and the torsion arm 81 of the return torsion spring 80 is connected to the release operating member 10 and / or the housing 70 and / or the buckle seat 72. In the default state, the release operating member 10 is in close contact with the buckle seat 72. When unlocking is required, the release operating member 10 is moved outward in a direction away from the buckle seat 72, causing the release operating member 10 to rotate, thereby pulling the first pull wire 20 and the second pull wire 30 to varying degrees. When the release operating member 10 rotates outward, the torsion arm 81 of the return torsion spring 80 is in a stressed state. When the unlocking operating member 10 is released, the torsion arm 81 of the reset torsion spring 80 resets and drives the unlocking operating member 10 to move toward the buckle seat 72 , thereby achieving automatic reset of the unlocking operating member 10 .

[0036] Furthermore, if Figures 4 to 7 As shown, the release member 10 includes a first release member 16 and a second release member 17, each rotatably connected to the rotation shaft 73. To facilitate simultaneous actuation of the first and second release members 16, 17, the first release member 16 is provided with an extension 161 extending toward the second release member 17. The extension 161 is elongated and located between the second release member 17 and the latch seat 72. When the first release member 16 is rotated about the rotation shaft 73, the second release member 17 is driven by the extension 161 and rotates synchronously about the rotation shaft 73. Thus, the first and second release members 16, 17, can be simultaneously rotated by actuating the first release member 16.

[0037] In order to introduce the structure in more detail, the following is an explanation using a specific embodiment:

[0038] Example 1

[0039] like Figures 1 to 3 As shown, the quick release buckle of this embodiment includes a release operating member 10, a first pull wire 20, a second pull wire 30, a housing 70 and a mounting base 90. The release operating member 10 is provided in one piece, and the first pull wire 20 and the second pull wire 30 are provided in one piece respectively.

[0040] The release operating member 10 is integrally formed and has a block-like structure. A first shaft hole 15 is provided in the lower middle portion of the release operating member 10 for rotationally connecting with the shaft 73. A first guide surface 11 and a second guide surface 12 are provided on the back of the release operating member 10. The first guide surface 11 and the second guide surface 12 have different travel distances.

[0041] The release operating member 10 is provided with a first wire hole 13 and a second wire hole 14. In this embodiment, the first wire hole 13 and the second wire hole 14 are located at the same height and spaced apart from each other. The first wire hole 13 and the second wire hole 14 can preferably be configured as through holes to facilitate threading.

[0042] The number of the first wire holes 13 is consistent with the number of the first wires 20. In this embodiment, only one first wire hole 13 is provided. The number of the second wire holes 14 is consistent with the number of the second wires 30. In this embodiment, only one second wire hole 14 is provided.

[0043] The shapes of the first and second wire holes 13 and 14 are not limited, as long as they can restrict the ends of the first and second wires 20 and 30 so that the first and second wires 20 and 30 are connected to the release operating member 10 .

[0044] The first wire drawing hole 13 is connected to the first guide surface 11 , so that the first wire drawing wire 20 can be led outward through the first guide surface 11 .

[0045] The second wire hole 14 is connected to the second guide surface 12 , so that the second wire 30 can be led outward through the second guide surface 12 .

[0046] In order to make the guiding strokes of the first guide surface 11 and the second guide surface 12 different, in this embodiment, the first guide surface 11 is set to a plane, and the second guide surface 12 is set to an arc surface, which is raised relative to the first guide surface 11, so that the strokes of the first guide surface 11 and the second guide surface 12 are different, and the curvature of the first guide surface 11 is greater than the curvature of the second guide surface 12.

[0047] To facilitate installation of the reset torsion spring 80, a torsion spring slot 18 is provided on one or both sides of the unlocking operating member 10. The torsion spring slot 18 is connected to the first rotating shaft hole 15, and a slot 19 is provided on the side wall of the torsion spring slot 18 to abut against the torsion spring torsion arm 81.

[0048] Furthermore, to facilitate user operation, a pull rope hole 110 can be provided at one end of the unlocking operating member 10 away from the first rotating shaft hole 15, so that a pull rope can be provided, thereby facilitating the user to rotate the unlocking operating member 10 by pulling the pull rope.

[0049] Furthermore, to maintain aesthetics and facilitate the placement of the first and second pull wires 20 and 30, a cover groove 111 is provided on the side of the release operating member 10 facing away from the first and second guide surfaces 11 and 12. The cover groove 111 is connected to the first and second pull wire holes 13 and 14. A removable cover 112 is installed in the cover groove 111. The cover 112 can close one end of the first and second pull wire holes 13 and 14.

[0050] The housing 70 includes a shell 71 and a buckle seat 72 that are connected in a mating relationship. The mating relationship between the shell 71 and the buckle seat 72 can be achieved by positioning the shell 71 and the buckle seat 72 via positioning posts 712, and does not necessarily require a tight connection. In this embodiment, a plurality of protruding positioning posts 712 are provided on the side of the shell 71 facing the buckle seat 72, and a plurality of positioning holes 723 are provided on the side of the buckle seat 72 facing the shell 71. The positioning posts 712 are inserted into the positioning holes 723 to mate the shell 71 and the buckle seat 72. At this time, the shell 71 and the buckle seat 72 are not fastened together, thereby facilitating assembly and disassembly.

[0051] The housing 71 is provided with a large hollow hole 711 , the area of which matches the shape of the unlocking operating member 10 , and is used for allowing the unlocking operating member 10 to move.

[0052] To facilitate rotational connection of the release operating member 10, a connecting ear 721 is provided on the buckle seat 72. The connecting ear 721 is a raised portion that faces the hollow hole 711 of the housing 71. The number of connecting ears 721 can be adjusted as needed. A second rotation axis hole 722 is provided on the connecting ear 721.

[0053] The rotating shaft 73 is inserted into the second rotating shaft hole 722 of the connecting ear 721 , and both ends of the rotating shaft 73 are overlapped on the housing 71 .

[0054] The unlocking operating member 10 is rotatably connected to the rotating shaft 73 through its first rotating shaft hole 15, so as to be rotatable around the rotating shaft 73. The central axis of the rotating shaft 73 forms the rotation center of the unlocking operating member 10.

[0055] When the release operating member 10 is rotatably connected to the rotating shaft 73 , the first guide surface 11 and the second guide surface 12 of the release operating member 10 face the buckle seat 72 , and the release operating member 10 can rotate in a direction away from the buckle seat 72 .

[0056] The return torsion spring 80 is mounted on the rotating shaft 73 and located within the torsion spring slot 18. A torsion arm 81 of the return torsion spring 80 is located within the latching slot 19. When the release operating member 10 rotates away from the buckle seat 72, the torsion arm 81 of the return torsion spring 80 is twisted and subjected to force. When the external force is removed, the torsion arm 81 returns to its original position, forcing the release operating member 10 to rotate toward the buckle seat 72 for reset.

[0057] To facilitate the extraction of the first and second pull wires 20 and 30, a third and fourth pull wire holes 74 and 75 are provided at the bottom of the housing 70. The third pull wire hole 74 is located at the end of the first guide surface 11 opposite to the first pull wire hole 13, and the fourth pull wire hole 75 is located at the end of the second guide surface 12 opposite to the second pull wire hole 14. The third and fourth pull wire holes 74 and 75 pass through the interior and exterior of the housing 70.

[0058] The first pull wire 20 and the second pull wire 30 are both of a sleeve structure, wherein the end of the core wire 62 of the first pull wire 20 is arranged in the first pull wire hole 13, the end of the sleeve wire 61 of the first pull wire 20 is arranged in the third pull wire hole 74, and the portion of the core wire 62 between the end of the core wire 62 of the first pull wire 20 and the end of the sleeve wire 61 passes through the first guide surface 11. The end of the core wire 62 of the second pull wire 30 is arranged in the second pull wire hole 14, the end of the sleeve wire 61 of the second pull wire 30 is arranged in the fourth pull wire hole 75, and the portion of the core wire 62 between the end of the core wire 62 of the second pull wire 30 and the end of the sleeve wire 61 passes through the second guide surface 12.

[0059] In this way, when the unlocking operating member 10 is rotated in the direction away from the buckle seat 72, the core wire 62 of the first pull wire 20 and the second pull wire 30 is driven. Since the strokes of the first guide surface 11 and the second guide surface 12 through which they pass are different, the first connecting buckle 40 and the second connecting buckle 50 linked thereto can be pulled to different degrees, thereby linking the first connecting buckle 40 and the second connecting buckle 50 to be unlocked in sequence.

[0060] The mounting base 90 is used to mount the quick release buckle on equipment, such as a bulletproof vest. The mounting base 90 is provided with screw holes for fixing the mounting base 90 to the place of use.

[0061] To facilitate connection to the housing 70, the mounting base 90 is provided with a receiving groove 91. One end of the receiving groove 91 is open, forming a socket 92. Restricting portions 93 are provided on both sides of the receiving groove 91, spaced from the bottom of the receiving groove 91. The restricting portions 93 are spaced apart to form a first opening 94. The direction of the first opening 94 is consistent with the opening direction of the hollow hole 711 and perpendicular to the direction of the socket 92.

[0062] The shape and size of the receiving groove 91 match those of the housing 70. The housing 70 can be inserted into the receiving groove 91 along the insertion opening 92 and restrained by the restraining portion 93, thereby confining the housing 70 in the receiving groove 91. Because the outer shell 71 of the housing 70 and the buckle seat 72 are not fastened together, the restraining portion 93 can also press the outer shell 71 and the buckle seat 72 together when the housing 70 is installed in the receiving groove 91, preventing them from loosening.

[0063] Furthermore, a passage groove 713 is provided on the surface of the housing 71 facing the restricting portion 93, and a protruding positioning portion 95 is provided on the restricting portion 93. The positioning portion 95 matches the passage groove 713 and extends in the same direction as the insertion direction of the housing 70. When the housing 70 is inserted into the accommodating slot 91 along the insertion opening 92, the positioning portion 95 cooperates with the passage groove 713, facilitating smoother linear movement of the housing 70.

[0064] Furthermore, a resilient pressing portion 96 is provided at the bottom of the receiving groove 91, i.e., at the end opposite the socket 92. One end of the resilient pressing portion 96 is connected to the mounting base 90, while the other end extends outwards to form a cantilevered end, thereby providing elasticity. In this embodiment, a hole is provided between the mounting base 90 and the resilient pressing portion 96, thereby allowing one end of the resilient pressing portion 96 to be cantilevered, thereby providing elasticity and compressibility. The shape of the resilient pressing portion 96 is not limited.

[0065] A positioning protrusion 97 is provided on the elastic pressing portion 96. Correspondingly, a buckle hole 724 is provided on the buckle seat 72. When the positioning protrusion 97 enters the buckle hole 724, the positioning protrusion 97 restricts the movement of the housing 70, thereby allowing the housing 70 to be assembled with the mounting seat 90.

[0066] When the shell 70 is inserted into the accommodating groove 91 along the socket 92, the back of the shell 70 presses the elastic pressing portion 96 until the shell 70 moves to the point where the buckle hole 724 corresponds to the positioning protrusion 97. The positioning protrusion 97 can then be snapped into the buckle hole 724 to keep the shell 70 in the accommodating groove 91.

[0067] Furthermore, a first guide bevel 971 is provided on the positioning protrusion 97. The first guide bevel 971 faces the direction of the socket 92, with one end thereof engaging with the bottom of the accommodating groove 91 and the other end being higher than the bottom of the accommodating groove 91. Correspondingly, a second guide bevel 7241 matching the first guide bevel 971 can be provided in the buckle hole 724. The inclination of the second guide bevel 7241 is consistent with the inclination of the first guide bevel 971. When the positioning protrusion 97 enters the buckle hole 724, the first guide bevel 971 and the second guide bevel 7241 fit together.

[0068] The provision of the first guiding slope 971 and the second guiding slope 7241 facilitates the housing 70 to press against the elastic pressing portion 96 and facilitates the reverse escape of the housing 70 from the receiving groove 91. When the housing 70 needs to be removed from the receiving groove 91 of the mounting seat 90, the elastic pressing portion 96 is pressed to move the positioning protrusion 97 out of the buckle hole 724, and the housing 70 can be moved along the direction of the socket 92 to be removed from the receiving groove 91.

[0069] Thus, the quick-release buckle of the present invention is formed: the release operating member 10 is rotatably connected to the rotating shaft 73, which is mounted on the connecting ear 721 of the buckle seat 72. The buckle seat 72 is aligned with the housing 71 and mounted in the receiving groove 91 of the mounting seat 90. One end of the first pull wire 20 is connected to the release operating member 10, and the other end passes through the first guide surface 11 and is led out of the release operating member 10; one end of the second pull wire 30 is connected to the release operating member 10, and the other end passes through the second guide surface 12 and is led out of the release operating member 10. Because the guiding strokes of the first guide surface 11 and the second guide surface 12 are different, when the release operating member 10 is rotated away from the buckle seat 72, the first pull wire 20 and the second pull wire 30 move along the first guide surface 11 and the second guide surface 12, thereby driving the first and second connecting buckles 40 and 50 connected thereto to unlock in sequence. When the external force is released, under the action of the return torsion spring 80 , the release operating member 10 rotates toward the buckle seat 72 to be reset.

[0070] When in use, the device is fixed to a location such as a bulletproof vest via the mounting base 90, and then the first pull cord 20 is connected to the first connecting buckle 40, and the second pull cord 30 is connected to the second connecting buckle 50. The user can unlock the first connecting buckle 40 and the second connecting buckle 50 in sequence by twisting the release operating member 10.

[0071] Example 2

[0072] The basic structure of this embodiment is the same as that of embodiment 1, except that Figures 4 to 7As shown, there are two unlocking operating members 10 , including a first unlocking operating member 16 and a second unlocking operating member 17 .

[0073] The basic structures of the first and second unlocking operating members 16 and 17 are the same as those of the unlocking operating member 10 in embodiment 1, and both are provided with a first guide surface 11 and a second guide surface 12 .

[0074] The first and second release operating members 16, 17 are rotatably connected to the rotating shaft 73. To facilitate simultaneous user control of the first and second release operating members 16, 17, the first release operating member 16 is provided with an extension 161 extending toward the second release operating member 17. The extension 161 is located between the second release operating member 17 and the buckle seat 72. When the first release operating member 16 is rotated about the rotating shaft 73, the second release operating member 17 is driven by the extension 161 and rotates synchronously about the rotating shaft 73. In this way, the first and second release operating members 16, 17 can be rotated simultaneously by actuating the first release operating member 16. Of course, actuating the second release operating member 17 alone can also cause the connected buckles to unlock in sequence.

[0075] Although the present invention is disclosed through the above embodiments, the scope of the present invention is not limited thereto. Without departing from the concept of the present invention, the above components can be replaced with similar or equivalent elements known to those skilled in the art.

Claims

1. A quick-release buckle, characterized in that: It includes: A release operating member (10) is rotatable about a fixed rotation center, and a first guide surface (11) and a second guide surface (12) are provided on the release operating member (10), wherein the first guide surface (11) and the second guide surface (12) have different guide strokes; A first pull wire (20) is used to connect to the first connecting buckle (40), the first pull wire (20) being connected to the unlocking operating member (10) and passing through the first guide surface (11); A second pull wire (30) is used to connect to the second connecting buckle (50), the second pull wire (30) is connected to the unlocking operating member (10) and passes through the second guide surface (12); When the unlocking operating member (10) is operated to rotate around the rotation center, the first pull wire (20) and the second pull wire (30) move with different strokes under the guidance of the first guide surface (11) and the second guide surface (12), and can be linked to the first connecting buckle (40) and the second connecting buckle (50) to unlock in sequence.

2. The quick release buckle according to claim 1, characterized in that: A first wire-pulling hole (13) and a second wire-pulling hole (14) are provided on the lock-releasing operating member (10), wherein the first wire-pulling hole (13) is connected to the first guide surface (11), and the second wire-pulling hole (14) is connected to the second guide surface (12); One end of the first pull wire (20) is confined in the first pull wire hole (13), and the other end passes through the first guide surface (11) and is connected to the first connecting buckle (40); One end of the second pull wire (30) is confined in the second pull wire hole (14), and the other end passes through the second guide surface (12) and is connected to the second connecting buckle (50).

3. The quick release buckle according to claim 2, characterized in that: The first pull wire hole (13) and the second pull wire hole (14) are located at the same end of the first guide surface (11) and the second guide surface (12), and the first pull wire (20) and the second pull wire (30) are led out from the same end of the unlocking operating member (10) and are connected to the first connecting buckle (40) and the second connecting buckle (50) respectively.

4. The quick release buckle according to claim 1, wherein: The curvature of the first guide surface (11) is greater than the curvature of the second guide surface (12).

5. The quick release buckle according to claim 2, characterized in that: The unlocking operating member (10) is rotatably connected to the housing (70), and the housing (70) includes a shell (71) and a buckle seat (72) that are connected in a mating manner. The shell (71) is provided with a hollow hole (711) for the unlocking operating member (10) to move. The buckle seat (72) is provided with a connecting ear (721) facing the hollow hole (711). A rotating shaft (73) is inserted into the connecting ear (721). The unlocking operating member (10) is rotatably connected to the rotating shaft (73) and can rotate around the rotating shaft (73).

6. The quick release buckle according to claim 5, characterized in that: A return torsion spring (80) for driving the release operating member (10) to return to its original position is provided between the release operating member (10) and the rotating shaft (73). The return torsion spring (80) is sleeved on the rotating shaft (73). The torsion arm (81) of the return torsion spring (80) is connected to the release operating member (10) and / or the housing (70) and / or the buckle seat (72).

7. The quick release buckle according to claim 5, characterized in that: The release operating member (10) includes a first release operating member (16) and a second release operating member (17), the first release operating member (16) and the second release operating member (17) being rotatably connected to the rotating shaft (73), respectively. An extension portion (161) extending toward the second release operating member (17) is provided on the first release operating member (16), the extension portion (161) being located between the second release operating member (17) and the buckle seat (72). When the first release operating member (16) is operated to rotate around the rotating shaft (73), the second release operating member (17) is driven by the extension portion (161) and can rotate synchronously around the rotating shaft (73).

8. The quick-release buckle according to claim 5, characterized in that: It also includes a mounting seat (90), a receiving groove (91) is provided on the mounting seat (90), and limiting portions (93) spaced apart from the bottom of the receiving groove (91) are provided on both sides of the receiving groove (91), the limiting portions (93) are spaced apart from each other to form a first opening (94), and one end of the receiving groove (91) is open to form a socket (92), and the housing (70) can be inserted into the receiving groove (91) along the socket (92) and be restricted by the limiting portions (93).

9. The quick-release buckle according to claim 8, characterized in that: An elastic pressing portion (96) is provided at the bottom of the accommodating groove (91), one end of the elastic pressing portion (96) is connected to the mounting seat (90), and the other end extends out to form a cantilever end and has elasticity, and a positioning protrusion (97) is provided on the elastic pressing portion (96); A button hole (724) is provided on the button seat (72). When the shell (70) is inserted into the accommodating groove (91) along the socket (92), the back of the shell (70) presses the elastic pressing portion (96) until the shell (70) moves to the point where the buckle hole (724) corresponds to the positioning protrusion (97), and the positioning protrusion (97) is engaged with the buckle hole (724) to keep the shell (70) in the accommodating groove (91).

10. The quick release buckle according to claim 9, characterized in that: A first guiding inclined surface (971) is provided on the positioning protrusion (97), and the first guiding inclined surface (971) faces the direction of the socket (92).

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