A locking device for multi-angle connectors

Abstract

A locking device for multi-angle connecting elements, comprising a first connecting element (1) and a second connecting element (2), wherein the first connecting element (1) is provided with a plug-in element (101) and the second connecting element (2) is provided with a groove (201) which cooperates with the plug-in element (101), wherein the first connecting element (1) and the second connecting element (2) are rotatably connected to one another by the plug-in element (101) and the groove (201), characterized in that the plug-in element (101) and the groove (201) are fixed by a locking device (3), wherein the locking device (3) in particular comprises: a push button assembly (301) arranged in a through hole (202) of the second connecting element (2) and comprising in detail a pressure plate (3011) and a cross plate (3012), wherein the pressure plate (3011) and the cross plate (3012) form a horizontal T-shaped structure, and the cross plate (3012) is provided with an inclined step-shaped stop block (3013); a snap-in connector (302) arranged in the groove (201) and having a T-shaped structure, the lower part of which forms an inclined structure which cooperates with the inclined step-shaped stop block (3013).

Description

Technical area

[0001] The present utility model solution relates to a fastener accessory, in particular a locking device for multi-angle fasteners, and belongs to the technical field of mechanical fasteners. This locking device is mainly used in various devices or structures that require multi-angle connections and secure fastening after connection, e.g., in furniture manufacturing for connecting tables and chairs with adjustable angles, in construction equipment for connecting rods with flexibly adjustable angles, and in automated production lines for connecting robot arm joints. State of the art

[0002] In modern industrial production and everyday life, many devices and structures must be connected using fasteners. These fasteners often require adjustment at multiple angles to meet different application requirements. In the furniture industry, for example, some multifunctional pieces of furniture require parts with adjustable angles, such as chairs with adjustable backrests or desks with adjustable tabletops. This requires a reliable multi-angle fastener to enable flexible adjustment and fixing of the angle.

[0003] However, the currently available multi-angle fasteners have numerous problems in practical application. On the one hand, while some fasteners can enable angle adjustment, the adjustment process is complicated, requires additional tools, is time-consuming, and causes great inconvenience to users. For example, some conventional mechanical fastener structures require the use of tools such as screwdrivers to loosen or tighten screws during angle adjustment. This is not only inefficient but may also cause component damage due to improper handling by users who are unfamiliar with the operation.

[0004] On the other hand, many fasteners exhibit poor fastening performance after angle adjustment and are prone to angular displacement during use due to external influences, which affects the normal use of the equipment and may even cause safety hazards. For example, in some construction machinery, if the angle connection of the rods is not tight enough, the angle of the rods may shift, leading to instability of the equipment structure and thus endangering the safety of construction workers.

[0005] Furthermore, currently available multi-angle fasteners often have complex designs and high costs, which not only increases the manufacturing costs of the products but also impairs their market competitiveness. In summary, the development of an easy-to-use, reliably fastened, simple-structure, and cost-effective locking device for multi-angle fasteners is of great practical importance. Content of the utility model

[0006] The present invention is intended to solve the above-mentioned technical problems and to provide a locking device for multi-angle connecting elements.

[0007] In order to solve the above-mentioned technical problems, the present invention offers the following technical solution: A locking device for multi-angle connecting elements, consisting of a first connecting element and a second connecting element, wherein the first connecting element is provided with a plug-in element and the second connecting element with a groove matching the plug-in element, wherein the first connecting element and the second connecting element are rotatably connected to one another via the plug-in element and the groove and the plug-in element and the groove are fixed by the locking device, in particular consisting of: The push-button assembly is arranged in the through-bore of the second connecting element and comprises, in particular, a pressure plate and a cross plate. The pressure plate and the cross plate form a horizontal T-shaped structure, with the cross plate being provided with a ramp-shaped stop block.

[0008] A snap-in connector arranged in a groove, specifically having a T-shaped structure and having an inclined structure on its underside which cooperates with the inclined, step-shaped stop block, wherein the inclined surface of the micro-step utilizes the force of the spring to return to the uppermost position so that the connection point is tight and without play.

[0009] In addition, the plug element has a gear-like structure, and the upper part of the snap-in connector has a tooth-like structure that mates with the gear-like plug element.

[0010] In addition, a rotation axis is provided between the second connecting element and the plug-in element.

[0011] In addition, a spring is provided between the push button assembly and the second connecting element.

[0012] The advantages of this invention over the prior art are that: 1. The angle can be adjusted by pressing the push button assembly without the need for tools, allowing for easy handling. 2. The snap-in connector and the plug-in element are provided with a toothing which, in combination with the push-button assembly and the limiting device of the snap-in connector, ensures stability and slip resistance. 3. The structure is simple and mainly consists of the push button assembly and the snap connector, reducing complex components and connection methods. Explanation of the attached illustrations Fig. shows a schematic representation of the structure of a locking device for multi-angle connectors according to the present invention. Fig. shows a schematic representation of the structure of a locking device for multi-angle connectors according to the present invention.

[0013] As shown in the figure: 1. First connecting element; 101. Plug element; 2. Second connecting element; 201. Groove; 202. Through hole; 3. Locking device; 301. Push button assembly; 3011. Pressure plate; 3012. Cross plate; 3013. Stop block; 302. Snap connector. Concrete implementation measuresI. Functional principle of the present invention:

[0014] The locking device for multi-angle connecting elements of the present invention essentially comprises a first connecting element 1 and a second connecting element 2. The first connecting element 1 is provided with a plug element 101, and the second connecting element 2 with a groove 201. Both parts are rotatably connected to one another via the plug element 101 and the groove 201 and fixed by the locking device 3.

[0015] The locking device 3 consists of a push-button assembly 301 and a snap-in connector 302. The push-button assembly 301 is arranged in the through-hole 202 of the second connecting element 2, with its pressure plate 3011 forming a horizontal T-shaped structure together with the cross plate 3012. The cross plate 3012 is provided with an inclined, stepped stop block 3013. The snap-in connector 302 is located in the groove 201, has a T-shape, and a sloped structure on the underside that cooperates with the stop block 3013. The plug element 101 has a gear shape that engages with the tooth structure above the snap-in connector 302 to ensure a tight fit and prevent angular displacement.

[0016] A pivot axis is provided between the second connecting element 2 and the plug-in element 101 to ensure smooth rotation of the first connecting element 1 around the second connecting element 2, reduce frictional interference, and improve the flexibility of angle adjustment. The spring between the push-button assembly 3 and the second connecting element 2 ensures automatic reset of the push-button assembly 3 and the snap-in connector 302 after the angle adjustment, thereby achieving rapid fastening.

[0017] During assembly, the snap connector 302 is first inserted into the groove 201, and then the plug-in element 101 is inserted to establish the connection. The push-button assembly 3 is then mounted to engage the snap connector 302, with the tapered design assisting the spring in springing back. During use, the pressure plate 3011 is pressed, causing the snap connector 302 to detach from the plug-in element 101, allowing the first connecting element 1 to rotate about the rotation axis, and compressing the spring. When the pressure plate 3011 is released, the spring returns to its original position, and the snap connector 302 re-engages with the gear of the plug-in element 101, establishing a secure connection at multiple angles. II. Concrete implementation measures

[0018] The first connecting element 1 and the second connecting element 2 can be made of high-strength metal material. The key connecting parts, the plug element 101 and the groove 201, are also made of high-strength metal to ensure connection reliability. The pressure plate 3011 and the cross plate 3012 of the push button assembly 301 are made of engineering plastic (polycarbonate PC or nylon), offering both good mechanical properties and low cost. The snap connector 302 must fit tightly with the plug element 101 and is made of alloy steel. The rotary axis is made of high-quality bearing steel to ensure rotational performance. The spring is made of spring steel with an appropriate elastic modulus to ensure stable recovery when pressed.

[0019] During assembly, the snap connector 302 is first inserted into the groove 201, ensuring that it can move freely and does not fall out. Next, the male element 101 of the first connecting element 1 is inserted into the groove 201 of the second connecting element 2 so that both parts temporarily engage with the snap connector 302. Next, the push-button assembly 301 is inserted into the through-hole 202 of the second connecting element 2, paying attention to the alignment so that the stop block of the cross plate 3012 of the snap connector 302 engages with the bevel of the snap connector 302 and ensures a tight fit. Next, a spring is installed between the snap-button assembly 3 and the second connecting element 2 to ensure a natural state and normal compression recovery.Finally, the rotation axis is mounted between the second connecting element 2 and the plug element 101 to ensure smooth rotation and a tight fit.

[0020] The above description relates to the present invention and its embodiments. This description is not limiting, and the embodiments illustrated in the accompanying drawings are merely examples of the present invention. The actual structure is not limited thereto.

[0021] In summary, all structures and embodiments developed by a person skilled in the art without departing from the purpose of the present invention and without creative design and similar to the present technical solution fall within the scope of the present invention.

Claims

[1] A locking device for multi-angle connecting elements, comprising a first connecting element (1) and a second connecting element (2), wherein the first connecting element (1) is provided with a plug-in element (101) and the second connecting element (2) is provided with a groove (201) which cooperates with the plug-in element (101), wherein the first connecting element (1) and the second connecting element (2) are rotatably connected to one another by the plug-in element (101) and the groove (201), characterized by that the plug-in element (101) and the groove (201) are fixed by a locking device (3), wherein the locking device (3) in particular comprises: a push button assembly (301) arranged in a through hole (202) of the second connecting element (2) and comprising in detail a pressure plate (3011) and a cross plate (3012), wherein the pressure plate (3011) and the cross plate (3012) form a horizontal T-shaped structure, and the cross plate (3012) is provided with an inclined step-shaped stop block (3013); a snap-in connector (302) arranged in the groove (201) and having a T-shaped structure, the lower part of which forms an inclined structure which cooperates with the inclined step-shaped stop block (3013). [2] A locking device for multi-angle connectors according to claim 1, characterized by that the plug-in element (101) is designed as a gear structure and the locking connector (302) has a toothing in the upper region which engages with the gear-shaped plug-in element (101). [3] A locking device for multi-angle connectors according to claim 1, characterized by that a rotation axis (4) is arranged between the second connecting element (2) and the plug-in element (101). [4] A locking device for multi-angle connectors according to claim 1, characterized by that a spring (5) is arranged between the push-button assembly (3) and the second connecting element (2).

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