Plastic damping hinge

Abstract

The utility model relates to the technical field of damping hinges, in particular to a plastic damping hinge which comprises an upper plastic hinge body, a fixing shaft is arranged in the upper plastic hinge body, a lower plastic hinge body is arranged on the surface of the fixing shaft in a sleeved mode, a damper is embedded in the lower plastic hinge body, and one end of the damper is connected with the upper plastic hinge body. The upper plastic hinge and the lower plastic hinge form a revolute pair through the fixing shaft, the fixing shaft penetrates through shaft holes of the upper plastic hinge and the lower plastic hinge so that the upper plastic hinge and the lower plastic hinge can relatively rotate around the fixing shaft, external force drives the lower plastic hinge to move, the fixing shaft and the upper plastic hinge are driven to move through movement of the lower plastic hinge, and meanwhile the damper is extruded in the relative rotation process. Damping force is generated through friction of internal media, the damping force acts on the upper plastic hinge and the lower plastic hinge through the fixing shaft, finally, the upper plastic hinge and the lower plastic hinge rotate stably, and through cooperation of the upper plastic hinge, the fixing shaft, the damper and the lower plastic hinge, the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of damping hinge technology, specifically a plastic damping hinge. Background Technology

[0002] A hinge is a mechanical part used to connect two objects and allow them to rotate relative to each other. It is commonly found on objects that can be opened and closed, such as doors, windows, and cabinets, and serves to connect and support them, allowing the objects to open and close flexibly.

[0003] Traditional hinges lack damping control during opening and closing, which easily generates collision noise. Furthermore, with prolonged use, the impact force can cause premature damage to components. Hinges with damping functions often have a more complex structure, more parts, making production and assembly difficult and costly. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a plastic damping hinge, which has the advantages of simple structure and low cost, and solves the problems of complex structure and high cost.

[0005] This utility model discloses a plastic damping hinge, including a plastic upper hinge, a fixed shaft inside the plastic upper hinge, a plastic lower hinge sleeved on the surface of the fixed shaft, a damper embedded inside the plastic lower hinge, and one end of the damper connected to the plastic upper hinge. The upper and lower plastic hinges form a rotating pair via a fixed shaft. The fixed shaft passes through the shaft holes of both hinges, allowing them to rotate relative to each other. An external force drives the lower hinge, which in turn drives the fixed shaft and the upper hinge. Simultaneously, the damper is compressed during this relative rotation, and internal friction generates damping force, which acts on the upper and lower hinges via the fixed shaft. This ensures smooth rotation of the upper and lower hinges. The combination of the upper hinge, fixed shaft, damper, and lower hinge results in a simple structure, lightweight and inexpensive plastic construction, reducing material and processing costs. Furthermore, the damper provides a buffering function during opening and closing, effectively reducing collision noise. The buffering effect also reduces impact forces between components, extending their lifespan, decreasing replacement frequency, and saving on operating costs.

[0006] This invention relates to a plastic damping hinge, wherein both the upper and lower plastic hinges are provided with shaft holes adapted to a fixed shaft, and the edges of the shaft holes are finely polished. This fine polishing of the shaft hole edges increases the stability of the fixed shaft, ensuring its smooth rotation.

[0007] This utility model discloses a plastic damping hinge, wherein both the upper and lower plastic hinges have mounting holes on their surfaces, and the number of mounting holes is two. By providing mounting holes, it is easy to install and connect the upper and lower plastic hinges to other components, increasing the convenience and stability of the connection.

[0008] The present invention relates to a plastic damping hinge, wherein the lower plastic hinge is provided with a damping cavity, and the damper is disposed in the damping cavity.

[0009] This utility model discloses a plastic damping hinge, wherein both the upper and lower plastic hinges are made of high-strength engineering plastics and manufactured using an injection molding process. By employing injection molding and using high-strength engineering plastics, the upper and lower plastic hinges possess excellent wear resistance and mechanical strength, increasing their reliability and durability.

[0010] This invention relates to a plastic damping hinge, wherein the fixed shaft is made of metal and its surface is covered with a nylon layer. By using a metal material and a nylon layer, the strength of the fixed shaft is ensured while reducing the frictional noise between the fixed shaft and the upper and lower plastic hinges.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model features a plastic upper hinge and a plastic lower hinge forming a rotating pair via a fixed shaft. The fixed shaft passes through the shaft holes of both the upper and lower plastic hinges, allowing them to rotate relative to each other around the fixed shaft. An external force drives the lower plastic hinge to move, which in turn drives the fixed shaft and the upper plastic hinge to move. Simultaneously, the damper is compressed during relative rotation, and the internal medium friction generates damping force, which acts on the upper and lower plastic hinges through the fixed shaft, ultimately ensuring smooth rotation of the upper and lower plastic hinges. Through the cooperation of the upper plastic hinge, fixed shaft, damper, and lower plastic hinge, the structure is simple, made of plastic, lightweight, and inexpensive, reducing material and processing costs. Furthermore, the damper provides a buffering function during opening and closing, effectively reducing collision noise. The buffering effect also reduces the impact force between components, extends the service life of components, reduces replacement frequency, and saves on operating costs.

[0013] 2. This utility model increases the stability of the fixed shaft by finely grinding the edge of the shaft hole, thus ensuring the smooth rotation of the fixed shaft;

[0014] By providing mounting holes, the plastic upper and lower hinges can be easily connected to other components, increasing the convenience and stability of the connection.

[0015] Made using injection molding and high-strength engineering plastics, the plastic upper and lower hinges possess excellent wear resistance and mechanical strength, increasing their reliability and durability.

[0016] By using metal materials and nylon layers, the friction noise between the fixed shaft and the plastic upper and lower hinges is reduced while ensuring the strength of the fixed shaft. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded structural diagram of the present invention.

[0020] In the diagram: 1. Plastic upper hinge; 2. Fixed shaft; 3. Damper; 4. Plastic lower hinge. Detailed Implementation

[0021] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0022] Please see Figure 1-2The present invention provides a plastic damping hinge, comprising a plastic upper hinge 1, a fixed shaft 2 inside the plastic upper hinge 1, a plastic lower hinge 4 sleeved on the surface of the fixed shaft 2, a damper 3 embedded inside the plastic lower hinge 4, and one end of the damper 3 connected to the plastic upper hinge 1. Plastic upper hinge 1 and plastic lower hinge 4 form a rotating pair via a fixed shaft 2. The fixed shaft 2 passes through the shaft holes of plastic upper hinge 1 and plastic lower hinge 4, allowing them to rotate relative to each other around the fixed shaft 2. External force drives plastic lower hinge 4 to move, which in turn drives the fixed shaft 2 and plastic upper hinge 1 to move. Simultaneously, damper 3 is compressed during relative rotation, and the internal medium friction generates damping force, which acts on plastic upper hinge 1 and plastic lower hinge 4 through the fixed shaft 2, ultimately ensuring smooth rotation of plastic upper hinge 1 and plastic lower hinge 4. Through the cooperation of plastic upper hinge 1, fixed shaft 2, damper 3, and plastic lower hinge 4, the structure is simple, made of plastic, lightweight, and inexpensive, reducing material and processing costs. At the same time, the damper 3 provides a buffering function for plastic upper hinge 1 and plastic lower hinge 4 during opening and closing, effectively reducing collision noise. Furthermore, the buffering effect reduces the impact force between components, extends the service life of components, reduces replacement frequency, and saves operating costs.

[0023] Both the upper plastic hinge 1 and the lower plastic hinge 4 are provided with shaft holes that are compatible with the fixed shaft 2, and the edges of the shaft holes are finely polished. By finely polishing the edges of the shaft holes, the stability of the fixed shaft 2 is increased, ensuring the smooth rotation of the fixed shaft 2.

[0024] Both the upper plastic hinge 1 and the lower plastic hinge 4 have mounting holes on their surfaces, and there are two mounting holes in total. These mounting holes facilitate the installation and connection of the upper plastic hinge 1 and the lower plastic hinge 4 with other components, increasing the ease and stability of the connection.

[0025] The plastic lower hinge 4 has a damping cavity, and the damper 3 is located inside the damping cavity.

[0026] Both the upper plastic hinge 1 and the lower plastic hinge 4 are made of high-strength engineering plastics using an injection molding process. This injection molding process, using high-strength engineering plastics, gives the upper plastic hinge 1 and the lower plastic hinge 4 excellent wear resistance and mechanical strength, increasing their reliability and durability.

[0027] The fixed shaft 2 is made of metal and its surface is covered with a nylon layer. By using metal and nylon, the strength of the fixed shaft 2 is ensured while reducing the friction noise between the fixed shaft 2 and the plastic upper hinge 1 and plastic lower hinge 4.

[0028] In using this utility model: the plastic upper hinge 1 and the plastic lower hinge 4 form a rotating pair through the fixed shaft 2. The fixed shaft 2 passes through the shaft holes of the plastic upper hinge 1 and the plastic lower hinge 4, allowing them to rotate relative to each other around the fixed shaft 2. An external force drives the plastic lower hinge 4 to move, which in turn drives the fixed shaft 2 and the plastic upper hinge 1 to move. At the same time, the damper 3 is compressed during relative rotation, and the internal medium friction generates a damping force, which acts on the plastic upper hinge 1 and the plastic lower hinge 4 through the fixed shaft 2, ultimately making the plastic upper hinge 1 and the plastic lower hinge 4 rotate smoothly. Through the cooperation of the plastic upper hinge 1, the fixed shaft 2, the damper 3, and the plastic lower hinge 4, the structure is simple, made of plastic, lightweight and inexpensive, reducing material and processing costs. At the same time, the setting of the damper 3 gives the plastic upper hinge 1 and the plastic lower hinge 4 a buffering function during opening and closing, which can effectively reduce collision noise. The buffering effect can also reduce the impact force between components, extend the service life of components, reduce the replacement frequency, and save on usage costs.

[0029] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A plastic damping hinge, comprising a plastic upper hinge (1), characterized in that: The plastic upper hinge (1) has a fixed shaft (2) inside, and a plastic lower hinge (4) is fitted on the surface of the fixed shaft (2). A damper (3) is embedded inside the plastic lower hinge (4), and one end of the damper (3) is connected to the plastic upper hinge (1).

2. The plastic damping hinge according to claim 1, characterized in that: Both the plastic upper hinge (1) and the plastic lower hinge (4) are provided with shaft holes that are adapted to the fixed shaft (2), and the edges of the shaft holes are finely polished.

3. The plastic damping hinge according to claim 1, characterized in that: The surfaces of the plastic upper hinge (1) and the plastic lower hinge (4) are provided with mounting holes, and there are two mounting holes in total.

4. A plastic damping hinge according to claim 1, characterized in that: The plastic lower hinge (4) is provided with a damping cavity, and the damper (3) is located in the damping cavity.

5. A plastic damping hinge according to claim 1, characterized in that: Both the plastic upper hinge (1) and the plastic lower hinge (4) are made of high-strength engineering plastics and manufactured by injection molding.

6. A plastic damping hinge according to claim 1, characterized in that: The fixed shaft (2) is made of metal and its surface is covered with a nylon layer.

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