A two-way connecting buckle

Abstract

The application provides a bidirectional connecting buckle, which comprises a buckle body and a front cover arranged on the buckle body, wherein a hanging rope connecting structure is arranged on the buckle body and used for connecting a hanging rope outside; the front cover is rotatably connected with the buckle body; a first connecting head is arranged on the front cover, and a second connecting head is arranged on the buckle body; when the front cover rotates on the buckle body, the first connecting head can rotate until it contacts with the second connecting head, and the first connecting head can also rotate until the first connecting head separates from the second connecting head. The bidirectional connecting buckle can be connected outside at both ends, one connecting end is used for connecting a hanging rope outside, and the other connecting end is provided with the first connecting head and the second connecting head which can contact or separate from each other, so that the bidirectional connecting buckle can be used for hanging articles, and the first connecting head and the second connecting head are opened and closed in a rotating mode, and the operation of locking or unlocking the connected articles is very convenient.

Description

Technical Field

[0001] This invention relates to the technical field of connecting devices, and more specifically to a bidirectional connecting buckle. Background Technology

[0002] Connecting buckles are widely used in daily life, especially two-way connecting buckles, which can be connected to external parts at both ends, forming a connecting hub to link two other items together. Two-way connecting buckles can be used on ID cards, with one end for attaching a lanyard and the other for attaching a card holder; they can also be used on various helmets, with each end for attaching to the side straps. In current technology, the connecting ends of two-way connecting buckles typically use a press-lock mechanism to connect to other items, requiring force to pry open the lock to unlock, which is inconvenient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a two-way connecting buckle, which can be connected to the outside at both ends. One of the connecting ends is opened and closed by rotation, making it convenient to lock or unlock the connected items.

[0004] The technical solution of the present invention is to provide a two-way connecting buckle, including a buckle body and a front cover disposed on the buckle body. The buckle body is provided with a lanyard connection structure for connecting a lanyard to the outside. The front cover and the buckle body are rotatably connected. The front cover is provided with a first connector and the buckle body is provided with a second connector. When the front cover rotates on the buckle body, the first connector can rotate until it contacts the second connector, and the first connector can also rotate until the first connector separates from the second connector.

[0005] Compared with the prior art, the bidirectional connecting buckle of the present invention has the following advantages: the bidirectional connecting buckle is provided with a hanging rope connection structure, which can be connected to an external hanging rope, and is also provided with a first connecting head and a second connecting head that can contact or separate from each other, so as to hang items; when the first connecting head and the second connecting head are separated, the item can be hung on the second connecting head, and then the front cover is rotated to make the first connecting head and the second connecting head contact, so the item is locked by the first connecting head and the second connecting head. Rotating the front cover again to separate the first connecting head and the second connecting head, the item can be detached from the second connecting head; the first connecting head and the second connecting head are opened and closed by rotation, and the operation of locking or unconnecting the item is very convenient.

[0006] Preferably, the front cover is provided with a pivot, and the side of the pivot is provided with a pivot clip; the buckle body is provided with a pivot hole, and both the pivot and the pivot clip can be inserted into the pivot hole. The pivot can rotate within the pivot hole, causing the pivot clip to be axially aligned with the side wall of the buckle body located outside the pivot hole. The side wall of the buckle body located outside the pivot hole, which is axially aligned with the pivot clip, axially limits the pivot clip. With this structure, both the pivot and the pivot clip can be inserted into the pivot hole. The position of the pivot clip inserted into the pivot hole is the initial position of the pivot clip. After the front cover rotates, the pivot clip rotates within the pivot hole, thus deviating from the initial position. When the side wall of the buckle body located outside the pivot hole is axially aligned with the pivot clip, the pivot clip is axially limited. In this way, the front cover and the buckle body can be smoothly connected together without the aid of other connecting parts.

[0007] Preferably, the buckle body has a rotating shaft limiting structure on the side wall outside the rotating shaft hole. This structure limits the rotation of the rotating shaft head; rotation of the rotating shaft allows the rotating shaft head to be limited by the limiting structure, and rotation of the rotating shaft also allows the rotating shaft head to disengage from the limiting structure. When the rotating shaft head is limited by the limiting structure, the first connector and the second connector are in contact. When the rotating shaft head disengages from the limiting structure, the first connector and the second connector can be separated. This structure allows the rotating shaft limiting structure to facilitate rapid rotation of the front cover to a position where the first connector and the second connector can contact each other; the rotating shaft head can also rotate to disengage from the limiting structure, facilitating the separation of the first connector and the second connector.

[0008] Preferably, the pivot limiting structure includes two second sliding ramps. The lower ends of the two second sliding ramps smoothly transition to or connect with the sidewall of the buckle body located outside the pivot hole. The upper ends of the two second sliding ramps are spaced apart and opposite to each other. The gap between the upper ends of the two second sliding ramps is set as a limiting groove. The limiting groove is used to limit the pivot clamp. At least one side wall of the limiting groove is set as a clearance surface. The clearance surface smoothly transitions to or connects with the upper end of the second sliding ramp on the same side. Rotation of the pivot allows the pivot clamp to slide along any one of the second sliding ramps and slide into or out of the limiting groove along the clearance surface. With this structure, the pivot clamp can slide into the limiting groove and be limited by the limiting groove when sliding along any one of the second sliding ramps, thus making it difficult for the pivot clamp to rotate freely. This ensures stable contact between the first connector and the second connector. The pivot clamp can slide out of the limiting groove along the clearance surface, facilitating the rotation of the front cover to disengage the first connector from the second connector.

[0009] Preferably, the buckle body has a second sliding ramp on the side wall outside the pivot hole. The height of the second sliding ramp gradually increases from both ends to the middle. The ends of the second sliding ramp smoothly transition to or connect with the side wall of the buckle body outside the pivot hole. Rotation of the pivot allows the pivot clamp to slide along the second sliding ramp. When the pivot clamp is located in the middle of the second sliding ramp, the first connector and the second connector contact each other. With this structure, because the height of the second sliding ramp gradually increases from both ends to the middle, the pivot clamp gradually presses against the second sliding ramp as it slides from the ends to the middle, making it less prone to free rotation. This ensures stable contact between the first connector and the second connector. Forcefully rotating the pivot allows the pivot clamp to slide away from the middle of the second sliding ramp, allowing the first connector and the second connector to disengage.

[0010] Preferably, at least one side of the buckle body at the position where the rotating shaft head is inserted into the rotating shaft hole is provided with a first sliding slope. The lower end of the first sliding slope smoothly transitions to or connects with the side wall of the buckle body located outside the rotating shaft hole and is opposite to the position where the rotating shaft head is inserted into the rotating shaft hole. A reverse limiting surface is provided between the upper end of the first sliding slope and the side wall of the buckle body. Rotation of the rotating shaft allows the rotating shaft head to slide from the lower end of the first sliding slope to the upper end of the first sliding slope, and the rotating shaft head can slide out from the upper end of the first sliding slope and face the reverse limiting surface. The reverse limiting surface is used to limit the rotating shaft head. When the rotating shaft head is facing the reverse limiting surface, the first connector does not contact the second connector. With this structure, when the front cover is rotated towards the lower end of the first sliding ramp, the pivot clamp can slide up the first sliding ramp from its initial position and slide along the first sliding ramp until it slides out of the first sliding ramp and is limited by the reverse limiting surface. At this time, rotating the front cover in the opposite direction will not allow the pivot clamp to slide up the first sliding ramp and return to its initial position, which can avoid excessive rotation of the front cover in the opposite direction causing the front cover to detach from the buckle.

[0011] Preferably, the first connector has a first sliding surface, and the second connector has a second sliding surface. The first sliding surface is a convex arc surface, and the second sliding surface is a concave arc surface. The first and second sliding surfaces can be mutually engaged. When the front cover rotates on the middle cover, the first sliding surface can contact and slide with the second sliding surface, and can also slide away from the second sliding surface. With this structure, the first and second connectors are in contact through the mutual engagement of the first and second sliding surfaces, ensuring that the item is firmly locked by the first and second connectors, preventing excessive gaps at the contact points and thus avoiding the item falling off.

[0012] Preferably, a limiting protrusion is provided on the first sliding surface. When the first sliding surface and the second sliding surface slide together, the limiting protrusion slides with the side wall of the second connector that is perpendicular to the second sliding surface, and the second connector axially limits the limiting protrusion. This structure avoids excessive axial clearance between the first connector and the second connector, which could cause the item to fall out through the axial gap between the first connector and the second connector.

[0013] Preferably, the bottom of the limiting protrusion is a convex arc surface with a positioning groove, and the second connector has a positioning protrusion. The first sliding surface slides on the second sliding surface, allowing the positioning protrusion to align with the bottom of the limiting protrusion and enter or exit the positioning groove. The second connector positions the first connector through the engagement of the positioning protrusion and the positioning groove. With this structure, when the first connector and the second connector are in contact, the engagement of the positioning protrusion and the positioning groove makes it easy for the user to determine whether the top cover has rotated to the correct position, and also prevents the rotating shaft clamp from rotating freely, ensuring stable contact between the first connector and the second connector.

[0014] Preferably, the buckle body includes a middle cover and a rear cover, which are detachably connected. A pivot hole is located on the middle cover, and the side wall of the buckle body located outside the pivot hole is the inner side wall of the middle cover. A second connector is located on the rear cover, and the lanyard connection structure is located between the middle cover and the rear cover. With this structure, the buckle body is composed of a detachably connected middle cover and a rear cover, which is convenient to manufacture. The lanyard connection structure can be hidden between the middle cover and the rear cover, avoiding exposure, making the overall structure of the bidirectional buckle of this invention neat and aesthetically pleasing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the bidirectional connection buckle of the present invention during the unlocking process.

[0016] Figure 2 This is an exploded view of the bidirectional connecting buckle of the present invention.

[0017] Figure 3 This is a schematic diagram showing the disassembly structure of the middle cover and the rear cover of the bidirectional connecting buckle of the present invention.

[0018] Figure 4 This is a schematic diagram showing the disassembly structure of the front cover and middle cover of the bidirectional connecting buckle of the present invention.

[0019] Figure 5 for Figure 4 A magnified structural diagram of region A in the middle.

[0020] Figure 6 This is a schematic diagram showing the disassembly structure of the front and rear covers of the bidirectional connecting buckle of the present invention.

[0021] Figure 7 for Figure 6 A magnified structural diagram of region B in the middle.

[0022] As shown in the figure: 1. Front cover, 1-1. Rotating shaft, 1-2. Rotating shaft clip, 1-3. First connector, 1-4. First sliding surface, 1-5. Limiting protrusion, 1-6. Positioning groove, 2. Middle cover, 2-1. Hanging cord fixing pin, 2-2. Rotating shaft hole, 2-3. First sliding slope, 2-4. Reverse limiting surface, 2-5. Second sliding slope, 2-6. Limiting groove, 2-7. Avoiding surface, 2-8. Buckle, 3. Rear cover, 3-1. Second connector, 3-2. Second sliding surface, 3-3. Positioning protrusion, 3-4. Clipping hole, 4. Hanging cord. Detailed Implementation

[0023] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0024] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0025] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "...at least one" appear after a list of listed features, they modify the entire listed feature, not individual elements in the list.

[0026] Example 1:

[0027] like Figure 1 and Figure 2As shown, the bidirectional connecting buckle of the present invention includes a front cover 1, a middle cover 2, and a rear cover 3 connected sequentially. The middle cover 2 and the rear cover 3 are detachably connected, and a hanging rope connection structure for connecting a hanging rope 4 is provided between the middle cover 2 and the rear cover 3. The front cover 1 and the middle cover 2 are rotatably connected. The lower end of the front cover 1 is provided with a first connector 1-3, and the lower end of the rear cover 3 is provided with a second connector 3-1. The second connector 3-1 is hook-shaped and can be used to hang items. When the front cover 1 rotates on the middle cover 2, the first connector 1-3 can rotate until it contacts the second connector 3-1, locking the item hung on the second connector 3-1 so that the item cannot be removed. If the front cover 1 is rotated in the same direction or in the opposite direction, the first connector 1-3 can rotate until it separates from the second connector 3-1, that is, the connection between the first connector 1-3 and the second connector 3-1 is released, and the item hung on the second connector 3-1 can be removed.

[0028] like Figure 3 As shown, two buckles 2-8 are provided on each of the two opposite inner sidewalls of the middle cover 2, and two locking holes 3-4 are provided on each of the two opposite sidewalls of the rear cover 3. The buckles 2-8 can be locked in place with the locking holes 3-4, allowing the middle cover 2 and the rear cover 3 to be detachably connected. Three lanyard fixing pins 2-1 are provided inside the middle cover 2, and three lanyard fixing holes are provided inside the rear cover 3. After the middle cover 2 and the rear cover 3 are connected, the lanyard fixing pins 2-1 are inserted into the corresponding lanyard fixing holes. The lanyard connection structure is formed by the cooperation of the lanyard fixing pins 2-1 and the lanyard fixing holes. To connect the lanyard 4, the lanyard fixing pins 2-1 are inserted into the lanyard 4, and then the middle cover 2 and the rear cover 3 are connected. With the lanyard fixing pins 2-1 inserted into the corresponding lanyard fixing holes, the lanyard 4 cannot detach from the lanyard fixing pins 2-1 and is thus fixed.

[0029] like Figure 4 As shown, a rotating shaft 1-1 is provided on the front cover 1, and a rotating shaft clip 1-2 is provided on the side of the rotating shaft 1-1. A rotating shaft hole 2-2 is provided on the middle cover 2. The shape of the rotating shaft hole 2-2 is similar to the combined cross section of the rotating shaft 1-1 and the rotating shaft clip 1-2. The rotating shaft hole 2-2 can be clearance-fitted with the rotating shaft 1-1 and the rotating shaft clip 1-2 on the rotating shaft 1-1. In this way, the rotating shaft 1-1 and the rotating shaft clip 1-2 can be inserted into the rotating shaft hole 2-2. The position of the rotating shaft clip 1-2 inserted into the rotating shaft hole 2-2 can be set as the initial position of the rotating shaft clip 1-2. Rotate the front cover 1, and the rotating shaft 1-1 rotates in the rotating shaft hole 2-2. The rotating shaft clamp 1-2 rotates around the rotating shaft 1-1. The parts on the middle cover 2 located outside the rotating shaft hole 2-2 can axially limit the rotating shaft clamp 1-2, so that the front cover 1 is stably connected to the middle cover 2, and the rotating shaft clamp 1-2 can only enter and exit the rotating shaft hole 2-2 from the initial position.

[0030] like Figure 5As shown, the outer ring of the pivot hole 2-2 is provided with two first sliding ramps 2-3. The first sliding ramps 2-3 are located on both sides of the position where the pivot clamp 1-2 is inserted into the pivot hole 2-2. The lower ends of the first sliding ramps 2-3 are smoothly connected to the side wall of the middle cover 2 located outside the pivot hole (2-2). The upper ends of the first sliding ramps 2-3 are provided with a reverse limiting surface 2-4 between them and the side wall of the middle cover 2. The height of the first sliding ramps 2-3 gradually rises from the lower end to the upper end, i.e., the top of the reverse limiting surface 2-4. When the front cover 1 is rotated, the pivot clamp 1-2 slides along the first sliding ramp 2-3 from the lower end to the upper end while rotating, until it slides down the first sliding ramp 2-3 and is opposite to the reverse limiting surface 2-4. The reverse limiting surface 2-4 limits the pivot clamp 1-2, preventing the pivot clamp 1-2 from sliding backward onto the first sliding ramp 2-3. After this, the rotating head 1-2 can only rotate between the two reverse limiting surfaces 2-4.

[0031] The outer ring of the pivot hole 2-2 is also provided with a pivot limiting structure. The pivot limiting structure includes a second sliding slope 2-5 located below the two first sliding slopes 2-3. The two ends of the second sliding slope 2-5 are located on both sides of the pivot hole 2-2 and are respectively opposite to the reverse limiting surface 2-4 on the same side. The ends of the second sliding slope 2-5 are smoothly transitioned to the side wall of the middle cover 2. The height of the second sliding slope 2-5 gradually rises from both ends to the middle. After the pivot clamp 1-2 disengages from the first sliding ramp 2-3, the front cover 1 continues to rotate. The pivot clamp 1-2 will slide onto the second sliding ramp 2-5 and slide along the second sliding ramp 2-5 to the middle of the second sliding ramp 2-5, so that the first connector 1-3 contacts the second connector 3-1, locking the item hanging on the second connector 3-1. Then, if the front cover 1 continues to rotate or rotates in the opposite direction, the pivot clamp 1-2 will slide along the second sliding ramp 2-5 to the end of the second sliding ramp 2-5 while rotating, so that the first connector 1-3 separates from the second connector 3-1, and the item hanging on the second connector 3-1 can be removed.

[0032] A limiting groove 2-6 is provided in the middle of the second sliding ramp 2-5. Both sides of the limiting groove 2-6 are designed as clearance surfaces 2-7, which are curved surfaces that smoothly transition into the second sliding ramp 2-5. The rotating shaft clamp 1-2 slides along the second sliding ramp 2-5 from its end to its middle and enters the limiting groove 2-6. The limiting groove 2-6 limits the rotating shaft clamp 1-2, meaning that after the first connector 1-3 contacts the second connector 3-1, the rotating shaft clamp 1-2 is less likely to rotate freely, and consequently, the front cover 1 is less likely to rotate freely. This stabilizes the first connector 1-3 and the second connector 3-1 and allows the user to easily determine if the front cover 1 has rotated to the correct position. Afterwards, by forcefully rotating the front cover 1, clockwise or counterclockwise, the rotating shaft clamp 1-2 will slide out of the limiting groove 2-6 along the corresponding clearance surface 2-7, allowing the first connector 1-3 and the second connector 3-1 to disengage.

[0033] like Figure 6 and Figure 7 As shown, the bottom of the first connector 1-3 is provided with a first sliding surface 1-4, which is a convex arc surface. The first sliding surface 1-4 is provided with a limiting protrusion 1-5, the bottom of which is a convex arc surface and is provided with a positioning groove 1-6. The hook-shaped end of the second connector 3-1 is provided with a second sliding surface 3-2, which is a concave arc surface. The hook-shaped inner bottom surface of the second connector 3-1 is provided with a positioning protrusion 3-3, the surface of which is curved. The first sliding surface 1-4 and the second sliding surface 3-2 can be mutually concave and convex, and the positioning protrusion 3-3 and the positioning groove 1-6 can also be mutually concave and convex.

[0034] When the rotating head 1-2 slides onto the second sliding ramp 2-5, the first sliding surface 1-4 and the second sliding surface 3-2 begin to contact. As the front cover 1 continues to rotate, the first sliding surface 1-4 slides on the second sliding surface 3-2, and the positioning protrusion 3-3 gradually aligns with the bottom of the limiting protrusion 1-5. There will be no excessive gap between the first sliding surface 1-4 and the second sliding surface 3-2. The side wall of the limiting protrusion 1-5 also slides in cooperation with the inner side wall of the hook-shaped end on the second connector 3-1. The inner side wall of the hook-shaped end on the second connector 3-1 is perpendicular to the side wall of the second sliding surface 3-2. The second connector 3-1 axially limits the limiting protrusion 1-5, and there will be no excessive axial gap between the limiting protrusion 1-5 and the hook-shaped end on the second connector 3-1. This ensures that the item will not fall off due to an excessive gap between the first connector and the second connector. The front cover 1 can be rotated until the positioning protrusion 3-3 enters the positioning groove 1-6. At this time, the first sliding surface 1-4 and the second sliding surface 3-2 are in complete contact. The second connector 3-1 is positioned by the positioning protrusion 3-3 and the positioning groove 1-6. Then, the front cover 1 is rotated forcefully, either clockwise or counterclockwise, so that the positioning protrusion 3-3 exits the positioning groove 1-6. The first sliding surface 1-4 will slide along the second sliding surface 3-2 and gradually disengage from the second sliding surface 3-2.

[0035] Example 2:

[0036] The difference between the bidirectional connecting buckle in this embodiment and that in embodiment 1 is that the middle part of the second sliding slope 2-5 does not have a limiting groove 2-6. Since the height of the second sliding slope 2-5 gradually increases from both ends to the middle, the rotating shaft clamp 1-2 will gradually press against the second sliding slope 2-5 as it slides from the end to the middle along the second sliding slope 2-5. This also makes it less likely for the rotating shaft clamp 1-2 to rotate freely, that is, the front cover 1 is less likely to rotate freely, thus stabilizing the first connector 1-3 and the second connector 3-1.

[0037] Example 3:

[0038] The difference between the bidirectional connecting buckle in this embodiment and that in embodiment 1 is that a first sliding ramp 2-3 is provided only on one side where the rotating shaft head 1-2 is inserted into the rotating shaft hole 2-2. In this way, after the rotating shaft head 1-2 slides down the first sliding ramp 2-3, the front cover 1 can continue to rotate in the same direction until the rotating shaft head 1-2 returns to the initial position. At this time, the rotating shaft head 1-2 can be withdrawn from the rotating shaft hole 2-2 to separate the front cover 1 from the middle cover 2.

[0039] Example 4:

[0040] The difference between the bidirectional connector buckle in this embodiment and that in embodiment 1 is that both the first connector 1-3 and the second connector 3-1 are convex spherical or conical surfaces. Therefore, the contact between the first connector 1-3 and the second connector 3-1 is a point contact. The first connector 1-3 and the second connector 3-1 can be separated by slightly rotating the front cover 1.

[0041] Example 5:

[0042] The difference between the bidirectional connecting buckle in this embodiment and Embodiment 1 is that, in this embodiment, neither side of the position where the rotating shaft clamp 1-2 is inserted into the rotating shaft hole 2-2 is provided with a first sliding slope 2-3. The rotating shaft limiting structure is a protrusion on the outer ring of the rotating shaft hole 2-2, which can block and limit the rotating shaft clamp 1-2 during rotation. When the first connector 1-3 and the second connector 3-1 are in full contact, the protrusion precisely limits the rotating shaft clamp 1-2.

[0043] Example 6:

[0044] The difference between the bidirectional connecting buckle in this embodiment and embodiment 1 is that the middle cover 2 is not provided, the front cover 1 and the rear cover 3 are hinged, and the hanging rope connecting structure that can connect the hanging rope 4 is also provided on the rear cover 3. In this way, rotating the front cover 1 can also make the first connecting head 1-3 contact or separate from the second connecting head 3-1.

[0045] The above are merely specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications or equivalent substitutions made to the present invention without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present invention.

Claims

1. A bidirectional connecting buckle, characterized in that, The device includes a buckle body and a front cover (1) mounted on the buckle body. The buckle body is provided with a lanyard connection structure for connecting a lanyard to the outside. The front cover (1) and the buckle body are rotatably connected. The front cover (1) is provided with a first connector (1-3), and the buckle body is provided with a second connector (3-1). When the front cover (1) rotates on the buckle body, the first connector (1-3) can rotate until it contacts the second connector (3-1), and the first connector (1-3) can also rotate until the first connector (1-3) contacts the second connector (3-1). The front cover (1) is separated from the second connector (3-1); a rotating shaft (1-1) is provided on the front cover (1), and a rotating shaft clip (1-2) is provided on the side of the rotating shaft (1-1); a rotating shaft hole (2-2) is provided on the buckle body, and both the rotating shaft (1-1) and the rotating shaft clip (1-2) can be inserted into the rotating shaft hole (2-2). The rotating shaft (1-1) can rotate in the rotating shaft hole (2-2) so that the rotating shaft clip (1-2) and the side wall of the buckle body located outside the rotating shaft hole (2-2) are axially opposite. The buckle body position axially opposite to the rotating shaft clip (1-2) is... The rotating shaft clamp (1-2) is axially limited by the side wall outside the rotating shaft hole (2-2); at least one side of the buckle body located where the rotating shaft clamp (1-2) is inserted into the rotating shaft hole (2-2) is provided with a first sliding slope (2-3), the lower end of the first sliding slope (2-3) smoothly transitions or connects with the side wall of the buckle body located outside the rotating shaft hole (2-2) and is opposite to the position where the rotating shaft clamp (1-2) is inserted into the rotating shaft hole (2-2), and the upper end of the first sliding slope (2-3) is provided with a reverse slope between it and the side wall of the buckle body. The rotating shaft (1-1) rotates to allow the rotating shaft clamp (1-2) to slide from the lower end of the first sliding ramp (2-3) to the upper end of the first sliding ramp (2-3), and the rotating shaft clamp (1-2) can slide out from the upper end of the first sliding ramp (2-3) and face the reverse limiting surface (2-4). The reverse limiting surface (2-4) is used to limit the rotating shaft clamp (1-2). When the rotating shaft clamp (1-2) faces the reverse limiting surface (2-4), the first connector (1-3) does not contact the second connector (3-1). The buckle body has a rotating shaft limiting structure on the side wall outside the rotating shaft hole (2-2). The rotating shaft limiting structure is used to limit the rotating shaft clamp (1-2). Rotation of the rotating shaft (1-1) can limit the rotating shaft clamp (1-2) to the rotating shaft limiting structure. Rotation of the rotating shaft (1-1) can also disengage the rotating shaft clamp (1-2) from the rotating shaft limiting structure. When the rotating shaft clamp (1-2) is limited by the rotating shaft limiting structure, the first connector (1-3) contacts the second connector (3-1). When the rotating shaft clamp (1-2) is disengaged from the rotating shaft limiting structure, the first connector (1-3) can separate from the second connector (3-1). The pivot limiting structure includes two second sliding inclined surfaces (2-5). The lower ends of the two second sliding inclined surfaces (2-5) are smoothly transitioned or connected to the side wall of the buckle body located outside the pivot hole (2-2). The upper ends of the two second sliding inclined surfaces (2-5) are arranged opposite each other with a gap. The gap between the upper ends of the two second sliding inclined surfaces (2-5) is set as a limiting groove (2-6). The limiting groove (2-6) is used to limit the pivot clamp (1-2). At least one side of the groove wall of the limiting groove (2-6) is set as a clearance surface (2-7). The clearance surface (2-7) is smoothly transitioned or connected to the upper end of the second sliding inclined surface (2-5) on the same side. The rotation of the pivot (1-1) can make the pivot clamp (1-2) slide along any one of the second sliding inclined surfaces (2-5) and the pivot clamp (1-2) can slide into or out of the limiting groove (2-6) along the clearance surface (2-7).

2. A two-way connecting buckle, characterized in that, The device includes a buckle body and a front cover (1) mounted on the buckle body. The buckle body is provided with a lanyard connection structure for connecting a lanyard to the outside. The front cover (1) and the buckle body are rotatably connected. The front cover (1) is provided with a first connector (1-3), and the buckle body is provided with a second connector (3-1). When the front cover (1) rotates on the buckle body, the first connector (1-3) can rotate until it contacts the second connector (3-1), and the first connector (1-3) can also rotate until the first connector (1-3) contacts the second connector (3-1). The front cover (1) is separated from the second connector (3-1); a rotating shaft (1-1) is provided on the front cover (1), and a rotating shaft clip (1-2) is provided on the side of the rotating shaft (1-1); a rotating shaft hole (2-2) is provided on the buckle body, and both the rotating shaft (1-1) and the rotating shaft clip (1-2) can be inserted into the rotating shaft hole (2-2). The rotating shaft (1-1) can rotate in the rotating shaft hole (2-2) so that the rotating shaft clip (1-2) and the side wall of the buckle body located outside the rotating shaft hole (2-2) are axially opposite. The buckle body position axially opposite to the rotating shaft clip (1-2) is... The rotating shaft clamp (1-2) is axially limited by the side wall outside the rotating shaft hole (2-2); at least one side of the buckle body located where the rotating shaft clamp (1-2) is inserted into the rotating shaft hole (2-2) is provided with a first sliding slope (2-3), the lower end of the first sliding slope (2-3) smoothly transitions or connects with the side wall of the buckle body located outside the rotating shaft hole (2-2) and is opposite to the position where the rotating shaft clamp (1-2) is inserted into the rotating shaft hole (2-2), and the upper end of the first sliding slope (2-3) is provided with a reverse slope between it and the side wall of the buckle body. The rotating shaft (1-1) rotates to allow the rotating shaft clamp (1-2) to slide from the lower end of the first sliding ramp (2-3) to the upper end of the first sliding ramp (2-3), and the rotating shaft clamp (1-2) can slide out from the upper end of the first sliding ramp (2-3) and face the reverse limiting surface (2-4). The reverse limiting surface (2-4) is used to limit the rotating shaft clamp (1-2). When the rotating shaft clamp (1-2) faces the reverse limiting surface (2-4), the first connector (1-3) does not contact the second connector (3-1). The buckle body is provided with a second sliding slope (2-5) on the side wall outside the pivot hole (2-2). The height of the second sliding slope (2-5) gradually increases from both ends to the middle. The ends of the second sliding slope (2-5) are smoothly connected to or connected to the side wall outside the pivot hole (2-2) of the buckle body. The rotation of the pivot (1-1) can make the pivot clamp (1-2) slide along the second sliding slope (2-5). When the pivot clamp (1-2) is located in the middle of the second sliding slope (2-5), the first connector (1-3) contacts the second connector (3-1).

3. The bidirectional connecting buckle according to claim 1 or 2, characterized in that, The first connector (1-3) is provided with a first sliding surface (1-4), and the second connector (3-1) is provided with a second sliding surface (3-2). The first sliding surface (1-4) is a convex arc surface, and the second sliding surface (3-2) is a concave arc surface. The first sliding surface (1-4) and the second sliding surface (3-2) can be mutually convex and concave. When the front cover (1) rotates on the middle cover (2), the first sliding surface (1-4) can contact and slide with the second sliding surface (3-2), and the first sliding surface (1-4) can also slide away from the second sliding surface (3-2).

4. The bidirectional connecting buckle according to claim 3, characterized in that, A limiting protrusion (1-5) is provided on the first sliding surface (1-4). When the first sliding surface (1-4) and the second sliding surface (3-2) slide together, the limiting protrusion (1-5) slides with the side wall of the second connector (3-1) perpendicular to the second sliding surface (3-2). The second connector (3-1) axially limits the limiting protrusion (1-5).

5. The bidirectional connecting buckle according to claim 4, characterized in that, The bottom of the limiting protrusion (1-5) is a convex arc surface and is provided with a positioning groove (1-6). The second connector (3-1) is provided with a positioning protrusion (3-3). The first sliding surface (1-4) slides on the second sliding surface (3-2) so that the positioning protrusion (3-3) is opposite to the bottom of the limiting protrusion (1-5) and can enter or exit the positioning groove (1-6). The second connector (3-1) positions the first connector (1-3) through the cooperation of the positioning protrusion (3-3) and the positioning groove (1-6).

6. The bidirectional connecting buckle according to claim 1 or 2, characterized in that, The buckle body includes a middle cover (2) and a rear cover (3), which are detachably connected. A pivot hole (2-2) is provided on the middle cover (2). The side wall of the buckle body located outside the pivot hole (2-2) is the inner side wall of the middle cover (2). A second connector (3-1) is provided on the rear cover (3). The hanging rope connection structure is located between the middle cover (2) and the rear cover (3).

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