A socket wrench for air filter
Patent Information
- Application Number
- CN202522453652.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-19
AI Technical Summary
[0002]航空器维修保养时,需对空气滤进行拆卸检修、维护保养等操作,由于空气滤位置特殊,空气滤中轴线前端为锥型结构,空气滤螺帽安装在锥形结构后端,周边密布其他结构件,使得空气滤螺帽在拆卸过程中不便于操作人员发力,且普通工具容易滑脱,易对周围机件造成附带损伤,使得航空维修拆卸作业效率极低
[0012]In practical applications, during use, the operator inserts the cylindrical anti-slip bushing along the outer surface of the air filter, and the tapered structure at the front end of the air filter's central axis passes through the circular clearance hole until the air filter nut extends into the air filter nut chuck groove. Disassembly is completed by using an open-end wrench to rotate on the hexagonal long handle. Installation is completed by operating in the reverse direction. By changing the force application position on the hexagonal long handle, the working surface is extended and surrounding equipment is avoided, improving maintenance and disassembly efficiency. This utility model can avoid the tapered structure to fit the air filter nut and change the force application position, making it easier for the operator to apply force and avoiding collateral damage to surrounding parts caused by slippage, thus improving the efficiency of aviation maintenance and disassembly operations.
Smart Images

Figure CN224855761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aviation maintenance technology, specifically to a socket wrench for air filters. Background Technology
[0002] During aircraft maintenance, air filters need to be disassembled, inspected, and maintained. Due to the special location of the air filter, the front end of the air filter's central axis is a conical structure, and the air filter nut is installed at the rear end of the conical structure. Other structural components are densely distributed around it, making it difficult for operators to exert force during the disassembly of the air filter nut. In addition, ordinary tools are prone to slipping and causing collateral damage to surrounding components, resulting in extremely low efficiency of aircraft maintenance disassembly operations. Utility Model Content
[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing a special socket wrench for air filters. It can avoid the conical structure, fit the air filter nut, and change the force application position, making it easier for the operator to apply force. It can also avoid the situation of incidental damage to surrounding parts caused by slippage, thereby improving the efficiency of aviation maintenance and disassembly operations.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An air filter socket wrench includes a cylindrical anti-slip bushing, a blind hole at one end of the cylindrical anti-slip bushing, and a hexagonal long handle at the other end of the cylindrical anti-slip bushing. The bottom of the blind hole is provided with an air filter nut chuck groove, and the bottom of the air filter nut chuck groove is provided with a circular clearance hole.
[0006] Furthermore, a ratchet handle interface is provided at the end of the hexagonal long handle, and the ratchet handle interface is located at the end of the hexagonal long handle away from the cylindrical anti-slip bushing.
[0007] Furthermore, the ratchet handle interface is located at the center of the end of the hexagonal long handle.
[0008] Furthermore, the ratchet handle interface is connected to the circular clearance hole.
[0009] Furthermore, the cylindrical anti-slip bushing has symmetrically arranged observation window sections at its ends, and the observation window sections are connected to the air filter nut clamp groove.
[0010] Furthermore, the circular clearance hole is coaxially arranged with the hexagonal long handle.
[0011] The beneficial effects of this utility model are:
[0012] In practical applications, during use, the operator inserts the cylindrical anti-slip bushing along the outer surface of the air filter, and the tapered structure at the front end of the air filter's central axis passes through the circular clearance hole until the air filter nut extends into the air filter nut chuck groove. Disassembly is completed by using an open-end wrench to rotate on the hexagonal long handle. Installation is completed by operating in the reverse direction. By changing the force application position on the hexagonal long handle, the working surface is extended and surrounding equipment is avoided, improving maintenance and disassembly efficiency. This utility model can avoid the tapered structure to fit the air filter nut and change the force application position, making it easier for the operator to apply force and avoiding collateral damage to surrounding parts caused by slippage, thus improving the efficiency of aviation maintenance and disassembly operations. Attached Figure Description
[0013] Figure 1 This is a first-view structural schematic diagram of the present invention;
[0014] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;
[0015] Figure 3 This is a side view of the present invention;
[0016] Figure 4 yes Figure 3 Cross-sectional view at point AA;
[0017] Reference numerals: 1. Cylindrical anti-slip bushing; 11. Blind hole; 12. Air filter nut chuck groove; 13. Circular clearance hole; 14. Observation window section; 2. Hexagonal long handle; 21. Ratchet handle interface. Detailed Implementation
[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a socket wrench for air filters includes a cylindrical anti-slip bushing 1, a blind hole 11 at one end of the cylindrical anti-slip bushing 1, and a hexagonal long handle 2 at the other end of the cylindrical anti-slip bushing 1. The bottom of the blind hole 11 is provided with an air filter nut chuck groove 12, and the bottom of the air filter nut chuck groove 12 is provided with a circular clearance hole 13.
[0019] In use, the operator inserts the cylindrical anti-slip bushing 1 along the outer surface of the air filter, and the tapered structure at the front end of the air filter's central axis passes through the circular clearance hole 13 until the air filter nut extends into the air filter nut chuck groove 12. Disassembly is completed by using an open-end wrench to rotate on the hexagonal handle 2. Installation is completed by operating in the opposite direction. By changing the force application position of the hexagonal handle 2, the working surface is extended and surrounding equipment is avoided, thus improving maintenance and disassembly efficiency. This utility model can avoid the tapered structure to fit the air filter nut and change the force application position, making it easier for the operator to apply force. It can also avoid the situation of collateral damage to surrounding parts caused by slippage, thus improving the efficiency of aviation maintenance and disassembly operations.
[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the end of the hexagonal long handle 2 is provided with a ratchet handle interface 21. The ratchet handle interface 21 is located at the end of the hexagonal long handle 2 away from the cylindrical anti-slip bushing 1. In this embodiment, after loosening the air filter nut by rotating an open-end wrench on the hexagonal long handle 2, a ratchet wrench is used to connect to the ratchet handle interface 21, which can speed up the disassembly and improve the maintenance and disassembly efficiency.
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the ratchet handle interface 21 is located at the center of the end of the hexagonal long handle 2. In this embodiment, when the ratchet handle interface 21 is located at the center of the end of the hexagonal long handle 2, it is easier to rotate the ratchet wrench by inserting it into the ratchet handle interface 21.
[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the ratchet handle interface 21 is connected to the circular clearance hole 13; in this embodiment, when the ratchet handle interface 21 is connected to the circular clearance hole 13, this application can be applied to the disassembly and use of air filter nuts with different tapered structure lengths.
[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the cylindrical anti-slip bushing 1 has symmetrically arranged observation window sections 14 at its ends, and the observation window sections 14 are connected to the air filter nut chuck groove 12. In this embodiment, when the operator puts the cylindrical anti-slip bushing 1 on the outer surface of the air filter and the tapered structure at the front end of the central axis of the air filter is inserted into the circular clearance hole 13, the operator can directly observe whether the air filter nut is inserted into the air filter nut chuck groove 12 through the observation window sections 14.
[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the circular clearance hole 13 is coaxially arranged with the hexagonal long handle 2; in this embodiment, when the circular clearance hole 13 and the hexagonal long handle 2 are coaxially arranged, it is easier to rotate the open-end wrench on the hexagonal long handle 2.
[0025] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.
Claims
1. A socket wrench specifically for air filters, characterized in that: It includes a cylindrical anti-slip bushing (1), a blind hole (11) at one end of the cylindrical anti-slip bushing (1), and a hexagonal long handle (2) at the other end of the cylindrical anti-slip bushing (1). The bottom of the blind hole (11) is provided with an air filter nut chuck groove (12), and the bottom of the air filter nut chuck groove (12) is provided with a circular clearance hole (13).
2. The air filter-specific socket wrench according to claim 1, characterized in that, The end of the hexagonal long handle (2) is provided with a ratchet handle interface (21), which is located at the end of the hexagonal long handle (2) away from the cylindrical anti-slip bushing (1).
3. The air filter-specific socket wrench according to claim 2, characterized in that, The ratchet handle interface (21) is located at the center of the end of the hexagonal handle (2).
4. The air filter-specific socket wrench according to claim 2, characterized in that, The ratchet handle interface (21) is connected to the circular clearance hole (13).
5. The air filter-specific socket wrench according to claim 1, characterized in that, The cylindrical anti-slip bushing (1) has symmetrically arranged observation window sections (14) at its ends, and the observation window sections (14) are connected to the air filter nut clamp groove (12).
6. The air filter-specific socket wrench according to claim 1, characterized in that, The circular clearance hole (13) is coaxially arranged with the hexagonal long handle (2).