Split hinge

Abstract

The utility model discloses a kind of split hinges, it is related to the technical field of hinge, overcome the material consumption of integrated molding moving block in existing hinge structure, poor assembly flexibility and other defects.It includes connecting rod, first moving block, second moving block and hinge plate;First moving block and second moving block are mutually independent separate structure;First moving block, second moving block are fixedly installed in the axial both ends of connecting rod;Hinge plate is rotationally connected in the middle part of the shank of connecting rod or the area close to middle part;In mounting state, hinge plate is used to be fixedly connected with one of the object to be pivoted, first moving block and second moving block are used to be fixedly connected with another object to be pivoted.By setting first moving block and second moving block as mutually independent separate structure, the connecting plate connecting two moving blocks in prior art is saved, material usage is reduced, so that it can be flexibly adjusted mounting position according to the mounting surface size, position of object to be pivoted, adapt to different installation scene.

Description

Technical Field

[0001] This utility model relates to the technical field of hinges, specifically a split hinge. Background Technology

[0002] In the fields of doors and windows, hinges are currently a key component for enabling relative rotational connection between two objects. Their structural design directly affects assembly convenience, material utilization, and operational stability. In existing technologies, common hinges typically include a moving block assembly for connecting two objects, a connecting rod, and a hinge plate. The moving block assembly often adopts a one-piece molded structure design, where two moving blocks are fixedly connected by a connecting plate to form a single structure. This single structure is then fixedly installed at both axial ends of the connecting rod, while the hinge plate is rotatably connected to the body of the connecting rod. However, this one-piece molded moving block structure has obvious limitations: on the one hand, since the two moving blocks are connected by a connecting plate, the overall structure has a relatively large volume and material usage, leading to increased material costs and occupying more space during transportation and storage; on the other hand, the one-piece design makes the assembly method between the moving block assembly and the connecting rod, as well as between the moving block assembly and the object to be connected (such as a cabinet), relatively fixed, and cannot be flexibly adjusted according to the size and position requirements of the actual installation scenario. For example, when the mounting surface of the object to be connected has dimensional deviations or special structures, the one-piece molded moving block assembly is difficult to adapt, and may require additional processing or adjustment, thereby reducing assembly efficiency and limiting the applicability of the hinge. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of existing hinge structures, such as high material consumption and poor assembly flexibility caused by the one-piece molded moving block. This invention provides a split hinge that can optimize structural design, improve material utilization and make assembly more flexible.

[0004] The technical solution of this utility model includes a connecting rod, a first moving block, a second moving block, and a hinge plate; the first moving block and the second moving block are independent and separate structures; the first moving block and the second moving block are respectively fixedly installed at both ends of the axial direction of the connecting rod; the hinge plate is rotatably connected to the middle part of the connecting rod or the area near the middle part; in the installed state, the hinge plate is used to fixally connect with one of the objects to be pivoted, and the first moving block and the second moving block are used to fixally connect with another object to be pivoted.

[0005] By adopting the above technical solution, the first moving block and the second moving block are set as independent separate structures, eliminating the connecting plate that connects the two moving blocks in the prior art, reducing material usage, lowering production costs, and reducing the overall structure volume, which facilitates transportation and storage. The design of fixing the first moving block and the second moving block to both ends of the connecting rod allows for flexible adjustment of the installation position according to the size and position of the mounting surface of the object to be pivoted, adapting to different installation scenarios and improving assembly flexibility. The hinge plate is rotatably connected to the middle or near the middle of the connecting rod body, which can ensure the stability of the two objects to be pivoted (such as a door and a cabinet) when they rotate relative to each other, avoiding jamming or damage caused by uneven force.

[0006] In one possible design, the first moving block and the second moving block each have a positioning protrusion, which is adapted to the corresponding slot of another object to be pivoted.

[0007] The above design allows for quick positioning of the first and second moving blocks relative to the object during installation, reducing adjustment time and improving assembly efficiency. Simultaneously, the fit between the positioning protrusions and the slots enhances the stability of the connection, preventing displacement or wobbling of the first and second moving blocks relative to the object during use.

[0008] In one possible design, both the first moving block and the second moving block are equipped with anti-rotation structures at the ends of the connecting rod.

[0009] With the above design, the anti-rotation structure can effectively prevent the first and second moving blocks from rotating relative to the connecting rod during use, thus ensuring the stability of the overall hinge structure.

[0010] In one possible design, the anti-rotation structure includes a spline portion on the connecting rod and connecting holes on the first and second moving blocks, with the spline portion inserted into the connecting holes to form a tight fit.

[0011] With the above design, the spline connection has high centering accuracy and load-bearing capacity, can reliably transmit torque, and effectively prevents relative rotation; at the same time, the tight fit method ensures the firmness of the connection, and the structure is simple, making it easy to process and assemble.

[0012] In one possible design, the anti-rotation structure includes a tenon on the connecting rod and tenons on the first moving block and the second moving block, with the tenon inserted into the tenon to form a tight fit.

[0013] With the above design, the mortise and tenon structure has good positioning performance and connection strength, and can effectively restrict relative rotation; the structure has a simple processing technology, low cost, and convenient assembly, making it suitable for mass production.

[0014] In one possible design, the first moving block and the second moving block are respectively fixed to the object to be installed by independent fasteners.

[0015] The above design ensures that the installation of the two components does not interfere with each other, and the installation position and tightness can be adjusted according to actual needs, further improving the flexibility and adaptability of the assembly. At the same time, independent fastening ensures the reliability of each moving block connection and avoids affecting the overall structural stability due to the loosening of a single fastener.

[0016] In one possible design, the hinge plate is rotatably fitted onto the body of the connecting rod via a bushing or bearing structure.

[0017] By adopting the above design, the bushing or bearing can reduce the coefficient of friction between the hinge plate and the connecting rod, making the rotation smoother, reducing wear, and extending the service life of the hinge; in addition, this structure can also improve the stability and accuracy of rotation, and avoid jamming or deviation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model; Figure 2 This is a cross-sectional view of a specific embodiment of the present utility model; Figure 3 This is an exploded view of a specific embodiment of the present utility model; Figure 4 This is a schematic diagram of another embodiment of the present invention; Figure 5 This is an exploded view of another embodiment of the present invention; Among them, 1. connecting rod; 2. first moving block; 21. positioning protrusion; 3. second moving block; 4. hinge plate; 41. mounting hole; 42. bushing; 5. fastener; 61. spline part; 62. connecting hole; 71. tenon head; 72. tenon. Detailed Implementation

[0019] Specific implementation examples: such as Figures 1 to 3 The illustrated split hinge includes a connecting rod 1, a first moving block 2, a second moving block 3, and a hinge plate 4. The first moving block 2 and the second moving block 3 are independent, separate structures without any connecting bridge or fixing plate between them. Their structures can be the same or different. In this embodiment, for ease of manufacturing and cost reduction, the first moving block 2 and the second moving block 3 have the same structure.

[0020] The first moving block 2 and the second moving block 3 are fixedly installed at both ends of the connecting rod 1, which is a cylindrical rod. A secure connection can be achieved through threaded connection, interference fit, welding, or press fitting. After connection, the two moving blocks can move synchronously with the connecting rod 1 without structural interference. The hinge plate 4 is located in the middle or near the middle of the connecting rod 1 and is fitted onto the connecting rod 1 via a rotatable connection, allowing it to rotate freely relative to the connecting rod 1.

[0021] In actual installation, hinge plate 4 is used to fix a pivoting object (such as a door frame or cabinet side panel) with screws or rivets; while the first moving block 2 and the second moving block 3 are used to fix a pivoting object (such as a door leaf or movable panel) with fasteners 5. Since the two moving blocks are independent structures, they can be positioned and locked separately during installation, without being restricted by each other's positions. Installation does not interfere with each other, and the design can flexibly adapt to dimensional deviations or irregular structures of the mounting surface, improving assembly convenience and adaptability.

[0022] To further improve installation accuracy and connection stability, the surfaces of the first moving block 2 and the second moving block 3 are provided with positioning protrusions 21. These positioning protrusions 21 are raised structures extending in a certain direction, and their cross-section can be rectangular, semi-circular, or dovetail-shaped. During installation, the positioning protrusions 21 are embedded into corresponding pre-cut slots on the objects to be connected, serving as guides and limiters to prevent the moving blocks from shifting circumferentially in the connecting rod 1 during tightening, ensuring accurate installation.

[0023] To enhance the connection stability between the moving block and the connecting rod 1 and prevent relative rotation during use, anti-rotation structures are provided at the ends of the first moving block 2 and the second moving block 3 and the connecting rod 1, respectively. The anti-rotation structure can take various forms. In this embodiment, one anti-rotation structure includes a spline portion 61 on the connecting rod 1 and connecting holes 62 on the first moving block 2 and the second moving block 3. The spline portion 61 is inserted into the connecting hole 62 to form a tight fit. The cross-sectional shape of the spline portion 61 is a multi-tooth structure. The cross-section of the connecting hole 62 can be a multi-tooth shape consistent with the shape of the spline portion 61, or it can be a circular shape. The spline portion 61 and the connecting hole 62 are in an interference fit.

[0024] The first moving block 2 and the second moving block 3 are respectively fixed to the object to be installed by independent fasteners 5 (such as screws or rivets). Since each moving block can be adjusted and locked individually, assembly can be completed smoothly even if there are slight unevennesses or hole deviations on the mounting surface, exhibiting good fault tolerance and adaptability.

[0025] The hinge plate 4 is rotatably connected to the middle or near the middle of the connecting rod 1. The hinge plate 4 has a mounting hole 41 for fixed connection with one of the pivoting objects. The hinge plate 4 is rotatably fitted onto the connecting rod 1 via a bushing 42 or a bearing structure, thus forming a low-friction, high-precision rotating pair to reduce friction during rotation and make rotation smoother. This is suitable for high-precision applications. In some low-precision applications, the hinge plate 4 itself, with its integrally formed bushing 42, can directly contact the connecting rod 1 to form a rotatable connection.

[0026] Another embodiment: Unlike the embodiments described above, as follows... Figure 4 , Figure 5 As shown, the anti-rotation structure adopts a tenon joint structure. Tenon heads 71 ​​are machined at both ends of the connecting rod 1, and their shape can be rectangular, trapezoidal, or other non-circular cross-sections; correspondingly, mortises 72 matching the tenons are provided at the connection points of the first moving block 2 and the second moving block 3. During installation, the tenon heads 71 ​​are inserted into the mortises 72 to form an interference or transition fit, thereby achieving circumferential locking between the moving block and the connecting rod 1.

[0027] In use, the hinge plate 4 is fixed to a stationary object, such as a cabinet or wall, while the first moving block 2 and the second moving block 3 are fixed to a moving object, such as a door panel or cover. When the moving object opens or closes, the hinge plate 4 rotates around the central axis of the connecting rod 1, achieving smooth relative rotation. Through the above structural design, this modular hinge not only reduces material usage and production costs but also offers flexible assembly, good stability, and suitability for various installation scenarios.

[0028] To ensure the hinge has high structural strength to meet the requirements of long-term use and bearing a certain weight, all components of this hinge are made of metal materials, preferably iron, but stainless steel or other metal materials can also be selected according to actual needs. The selection of metal materials can significantly improve the overall strength and durability of the hinge, and avoid deformation or damage due to excessive force during use.

Claims

1. A split hinge, characterized in that: It includes a connecting rod (1), a first moving block (2), a second moving block (3), and a hinge plate (4); the first moving block (2) and the second moving block (3) are independent separate structures; the first moving block (2) and the second moving block (3) are respectively fixedly installed at both ends of the axial direction of the connecting rod (1); the hinge plate (4) is rotatably connected to the middle part of the connecting rod (1) or the area near the middle part; in the installed state, the hinge plate (4) is used to be fixedly connected to one of the objects to be pivoted, and the first moving block (2) and the second moving block (3) are used to be fixedly connected to another object to be pivoted; The first moving block (2) and the second moving block (3) are respectively provided with positioning protrusions (21), and the positioning protrusions (21) are adapted to the corresponding slots of another object to be pivoted; The first moving block (2) and the second moving block (3) are respectively provided with anti-rotation structures at the ends of the connecting rod (1).

2. The split hinge according to claim 1, characterized in that: The anti-rotation structure includes a spline portion (61) on the connecting rod (1) and connecting holes (62) on the first moving block (2) and the second moving block (3), wherein the spline portion (61) is inserted into the connecting hole (62) to form a tight fit.

3. The split hinge according to claim 1, characterized in that: The anti-rotation structure includes a tenon (71) on the connecting rod (1) and a tenon (72) on the first moving block (2) and the second moving block (3), wherein the tenon (71) is inserted into the tenon (72) to form a tight fit.

4. The split hinge according to claim 1, characterized in that: The first moving block (2) and the second moving block (3) are respectively fixed to the object to be installed by independent fasteners (5).

5. The split hinge according to claim 1, characterized in that: The hinge plate (4) is rotatably sleeved on the body of the connecting rod (1) via a bushing (42) or a bearing structure.

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