A front and back hinge shaft positioning assembly

Abstract

This utility model relates to a positioning assembly for a front and rear hinge shaft. Its key structure includes a base, side plates, a shaft, a swing arm, reinforcing ribs, baffles, mounting holes, and a spring telescopic rod. The base is cuboid, with side plates connected to both ends. The side plates are rectangular sheets with a first connecting hole at the top. The shaft passes through the first connecting holes in both side plates, extending outwards at both ends and equipped with limiting baffles. A vertical fixing plate is mounted on the baffle, located between the side plates, with several positioning posts distributed on its upper surface. The swing arm is elongated, with a second connecting hole at one end engaging with the shaft, allowing it to rotate around the shaft. The swing arm also has several positioning holes that engage with the positioning posts for positioning and assembly. Reinforcing ribs are provided on the upper surface of the base, evenly distributed along its length, and connected to the side plates at both ends to enhance the connection strength between the base and the side plates. Mounting holes are provided on the swing arm, distributed along its length, for connection to external hinges.

Description

Technical Field

[0001] This utility model provides a positioning assembly, and particularly relates to a front and rear hinge shaft positioning assembly. Background Technology

[0002] In existing mechanical assemblies, the installation and positioning of the pivots of front and rear hinges are often complex, with difficulty in ensuring accuracy, and the installation process is cumbersome and inefficient. Traditional assembly methods usually involve welding or bolting, but these methods have the following problems: on the one hand, welding can lead to local changes in material properties and is difficult to disassemble, making it inconvenient for maintenance and replacement; on the other hand, bolting requires precise drilling and alignment, which is inconvenient to operate, and the bolts may loosen during long-term use, affecting the reliability of the connection. Utility Model Content

[0003] The present invention aims to provide a front and rear hinge shaft positioning assembly to solve the problems of complex installation, low positioning accuracy and inconvenient disassembly of the front and rear hinge shafts in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a front and rear hinge pivot positioning assembly, including a base, side plates, a pivot, and a swing arm. The base is rectangular in shape, with both ends fixedly connected to the side plates on both sides. The side plates are rectangular sheet structures with a first connecting hole at their top. The pivot passes through the first connecting holes of the two side plates, with both ends extending to the outside. A fixing plate perpendicular to the pivot is provided on the pivot. The fixing plate is located between the two side plates, and a plurality of positioning posts are provided on its upper surface. The swing arm is elongated, with a second connecting hole at one end that mates with the pivot. It is fitted onto the pivot through the second connecting hole. The swing arm is provided with a plurality of positioning holes that mate with the positioning posts. The swing arm can rotate around the pivot and achieve positioning assembly through the positioning posts and positioning holes.

[0005] Furthermore, the upper surface of the base is provided with several reinforcing ribs, which are evenly distributed along the length of the base and are fixedly connected to the two side plates at both ends to enhance the connection strength between the base and the side plates.

[0006] Furthermore, each end of the rotating shaft is provided with a baffle for limiting the position. The diameter of the baffle is larger than the diameter of the first connecting hole to prevent the rotating shaft from falling off the side plate.

[0007] Furthermore, the swing arm is provided with a number of mounting holes, which are distributed along the length of the swing arm and are used to connect with an external hinge.

[0008] Furthermore, the base, side plates, pivot, and swing arm are all made of metal and have been treated with anti-corrosion coating to improve their service life.

[0009] Furthermore, a spring telescopic rod is movably connected between the base and the positioning column.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0011] This device effectively improves upon existing technologies that suffer from complex assembly, low positioning accuracy, and insufficient stability of the front and rear hinge shafts. A stable foundation frame is constructed using a base and side plates. The shaft passes through the side plate via a first connecting hole, and a baffle prevents it from falling off, ensuring stable installation. The fixing plate and positioning post on the shaft engage with the second connecting and positioning holes on the swing arm, allowing the swing arm to rotate flexibly and be precisely positioned around the shaft, improving assembly flexibility and accuracy. Furthermore, reinforcing ribs enhance the connection strength between the base and side plates, and the introduction of a spring telescopic rod further improves flexibility and adaptability. All components are made of metal and undergo anti-corrosion treatment, ensuring structural strength and service life. This addresses the shortcomings of existing technologies, enabling convenient, precise, and stable assembly of the front and rear hinge shafts.

[0012] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0013] Figure 1 This is an installation diagram of a front and rear hinge shaft positioning assembly according to the present invention.

[0014] Figure 2 This is an exploded view of a front and rear hinge shaft positioning assembly according to the present invention.

[0015] Figure 3 This is a partial sectional view of the spring shaft of a front and rear hinge pivot positioning assembly according to this utility model.

[0016] As shown in the figure:

[0017] 1. Base; 2. Side plate; 3. Rotating shaft; 4. Swing arm; 5. Spring telescopic rod;

[0018] 11. Reinforcing ribs;

[0019] 21. First connecting hole;

[0020] 31. Fixing plate; 32. Baffle;

[0021] 311. Positioning post;

[0022] 41. Second connecting hole; 42. Positioning hole; 43. Mounting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 and Figure 2 As shown, a front and rear hinge pivot positioning assembly is characterized by its ingenious integrated structure comprising a base 1, side plates 2, pivot 3, and swing arm 4. The base 1 is a cuboid, with both ends firmly connected to the side plates 2. The side plates 2 are rectangular sheets with a first connecting hole 21 at the top. The pivot 3 cleverly passes through the first connecting holes 21 on both side plates 2, extending outwards at both ends. A vertical fixing plate 31 is mounted on the pivot 31, located between the two side plates 2. Several positioning posts 311 are distributed on the upper surface of the fixing plate 31. The swing arm 4 is elongated, with a second connecting hole 41 at one end that engages with the pivot 3, allowing it to rotate around the pivot 3. The swing arm 4 also has several positioning holes 42 that engage with the positioning posts 311 to achieve positioning and assembly. In addition, the upper surface of the base 1 is provided with reinforcing ribs 11, which are equidistantly distributed along the length direction and connected to the side plates 2 at both ends to enhance the connection strength between the base 1 and the side plates 2; the baffles 32 at both ends of the rotating shaft 3 have a diameter larger than the diameter of the first connecting hole 21 to prevent the rotating shaft 3 from falling off; the swing arm 4 is provided with mounting holes 43, which are distributed along the length direction for connecting with external hinges; all components are made of metal and are treated with anti-corrosion to improve service life.

[0027] In this embodiment, the coordinated design of the base 1, side plate 2, pivot 3, swing arm 4, reinforcing rib 11, baffle 32, mounting hole 43, and spring telescopic rod 5 aims to provide an efficient, stable, and easy-to-install front and rear hinge pivot positioning assembly solution. The close cooperation of each component creates a device capable of quickly and accurately completing the front and rear hinge pivot positioning assembly, while also possessing excellent stability and a long service life. The stable connection between the base 1 and side plate 2 provides a solid foundation for the entire assembly. The cooperation between the first connecting hole 21 on the side plate 2 and the pivot 3 allows the pivot 3 to stably pass through both side plates 2, and the baffle 32 prevents it from falling off. The fixing plate 31 and its positioning post 311 on the pivot 3 cooperate with the second connecting hole 41 and positioning hole 42 on the swing arm 4, enabling the swing arm 4 to rotate flexibly and be precisely positioned around the pivot 3, providing high flexibility and accuracy for hinge installation. The mounting hole 43 on the swing arm 4 facilitates connection with external hinges, broadening the application scenarios of the assembly. The reinforcing rib 11 effectively enhances the connection strength between the base 1 and the side plate 2, ensuring the stability of the entire assembly during use. The spring telescopic rod 5 between the base 1 and the positioning post 311 further enhances the flexibility and adaptability of the assembly.

[0028] like Figure 2 and Figure 3 As shown, in the innovative design of this assembly, a spring telescopic rod 5 is movably connected between the base 1 and the positioning column 311. This ingenious improvement brings better performance to the assembly. The addition of the spring telescopic rod 5 enables the assembly to achieve more flexible adjustment and a more stable connection effect while realizing the positioning assembly of the front and rear hinge shafts. It can better adapt to different assembly needs and working environments, further improving the practicality and reliability of the assembly and providing strong support for its widespread application in the field of mechanical assembly.

[0029] In this implementation plan, the existing technical solutions and means involved can be applied as follows: First, when installing this device, common mechanical fasteners such as bolts and nuts are required. Specifically, the bolts are passed through the mounting holes on the swing arm and the corresponding connection holes of the external mechanical components in sequence, and then the nuts are put on and tightened to firmly fix the device in the corresponding position. The bolts and nuts can be selected from standard parts on the market according to the actual load and size requirements. In terms of manufacturing, metal parts such as the base, side plates, rotating shaft, and swing arm can be formed by casting process, such as sand casting or precision casting, to obtain blanks that meet the design dimensions. Then, machining operations such as turning, milling, and drilling are performed to ensure that the accuracy and surface roughness of each connection hole (secondary connection hole, etc.) meet the assembly requirements. The connection between the reinforcing rib and the base and side plates can be made by welding process, such as common electric arc welding or gas shielded welding, and the operation is carried out according to the welding process specifications to ensure the connection strength. For surface corrosion protection, if electroplating is used, the metal parts can be placed in a suitable electroplating tank, with the metal parts as the cathode. Electricity is passed through the electrolyte for a certain period, causing metal ions to deposit on the surface and form a protective layer, such as zinc or chromium plating. The thickness of the zinc plating layer is generally controlled at 8-12 μm, and the thickness of the chromium plating layer is controlled at 5-10 μm to achieve good corrosion protection. If painting is used, the metal surface must first undergo pretreatment such as degreasing and rust removal. Then, the anti-corrosion coating is evenly sprayed onto the surface using spraying equipment. Finally, it is placed in an oven to dry and cure according to the coating's curing temperature and time requirements. The manufacturing of spring telescopic rods can utilize existing spring manufacturing and machining technologies. First, piano wire is coiled into springs of the required specifications using a spring coiling machine. Then, both ends are assembled and connected to the connecting parts on the fixing plate and base to ensure that the spring telescopic rod can extend and retract normally and has sufficient elasticity. During the use or operation of this device, when it is necessary to install the front and rear hinges, first rotate the swing arm around the pivot to a suitable position so that the positioning hole on the swing arm is aligned with the positioning post on the fixed plate and inserted to achieve the positioning of the swing arm. At this time, the swing arm can be further fixed by means of positioning pins or buckles in the prior art to prevent it from loosening during assembly. Then connect the external hinge to the mounting hole on the swing arm. If it is necessary to adjust the tightness of the hinge, the adjusting screw in the prior art can be used to change the tightness of the connection between the hinge and the swing arm by turning the adjusting screw, thereby achieving precise assembly and adjustment.

[0030] In one or more feasible embodiments, this device can be used with existing fasteners such as bolts and nuts to achieve a stable connection with external structures. For example, by passing bolts through the mounting holes 43 on the swing arm 4, the entire assembly can be fixed to the mechanical component where the hinge needs to be installed. Simultaneously, common metal processing techniques such as casting, forging, stamping, and welding can be used during manufacturing to form the components, ensuring structural accuracy and performance. Furthermore, surface corrosion protection can be achieved using existing processes such as electroplating, painting, and thermal spraying, such as galvanizing or chrome plating the metal components, or spraying anti-corrosion coatings to enhance their corrosion resistance. In this device, components such as the base 1, side plate 2, rotating shaft 3, and swing arm 4 can be made of specific metal materials, such as 6061 aluminum alloy. This material has good strength, toughness, and processing performance, which can meet the usage requirements of the device. The spring telescopic rod 5 can be made of piano wire, which has high elasticity and fatigue resistance, ensuring the stability and reliability of the device during long-term use. By combining these existing technologies and materials, the solution of this device is more complete and easier to apply in practice.

[0031] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A front and rear hinge pivot positioning assembly, characterized in that: It includes a base (1), side plates (2), a pivot (3), and a swing arm (4); The base (1) is rectangular in shape, with both ends fixedly connected to the side plates (2) on both sides. The side plates (2) are rectangular in shape, with a first connecting hole (21) at the top. The rotating shaft (3) passes through the first connecting hole (21) of the two side plates (2) and extends to the outside at both ends. The rotating shaft (3) is provided with a fixing plate (31) perpendicular to it. The fixing plate (31) is located between the two side plates (2) and has several positioning posts (311) on its upper surface. The swing arm (4) is long in shape, with a second connecting hole (41) at one end that cooperates with the rotating shaft (3). It is sleeved on the rotating shaft (3) through the second connecting hole (41). The swing arm (4) is provided with several positioning holes (42) that cooperate with the positioning posts (311). The swing arm (4) can rotate around the rotating shaft (3) and achieve positioning and assembly through the positioning posts (311) and the positioning holes (42).

2. The front and rear hinge shaft positioning assembly according to claim 1, characterized in that: The upper surface of the base (1) is also provided with a number of reinforcing ribs (11). The reinforcing ribs (11) are distributed at equal intervals along the length of the base (1), and their two ends are fixedly connected to the two side plates (2) respectively, so as to enhance the connection strength between the base (1) and the side plates (2).

3. The front and rear hinge shaft positioning assembly according to claim 1, characterized in that: The rotating shaft (3) is provided with baffles (32) at both ends for limiting the position. The diameter of the baffles (32) is larger than the diameter of the first connecting hole (21) to prevent the rotating shaft (3) from falling off the side plate (2).

4. The front and rear hinge shaft positioning assembly according to claim 1, characterized in that: The swing arm (4) is also provided with a number of mounting holes (43), which are distributed along the length of the swing arm (4) and are used to connect with an external hinge.

5. The front and rear hinge shaft positioning assembly according to claim 1, characterized in that: The base (1), side plate (2), pivot (3) and swing arm (4) are all made of metal and have been treated with anti-corrosion coating to improve their service life.

6. The front and rear hinge shaft positioning assembly according to claim 1, characterized in that: A spring telescopic rod (5) is movably connected between the base (1) and the positioning column (311).

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