Tool for anti-loosening identification of aviation antenna screw

By designing a tooling for anti-loosening identification of aviation antenna screws, the problem of identifying loose screws was solved, the shape consistency and continuity of the identification were achieved, and the assembly quality and reliability of the product were ensured.

CN223337726UActive Publication Date: 2025-09-16NANJING ZHIXINLING TECH CO LTD
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Patent Information

Application Number
CN202421863116.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-02
Publication Date
2025-09-16
Estimated Expiration
2034-08-02

AI Technical Summary

Technical Problem

It is difficult to effectively identify whether existing aviation screws are loose during the assembly process, and the continuity and consistency of the red paint markings are poor, affecting product reliability.

Method used

A tooling for anti-loosening marking of aviation antenna screws is designed, including a tooling handle and a stepped screw cover. With the help of a brush and red paint, the tooling handle is matched with the screw to ensure the shape consistency and continuity of the mark.

Benefits of technology

The shape consistency and continuity of the screw markings are improved, which can effectively identify whether the screws are loose and ensure the assembly quality and reliability of the product.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a tool for an aviation antenna screw anti-loosening mark, which comprises a tool handle and a step type screw gland vertically arranged at one end of the tool handle, the inner contour of the step type screw gland is matched with the outer contour of a screw, and the step type screw gland is provided with a groove along the direction vertical to the tool handle. According to the utility model, similar tools can be designed by slightly changing the sizes of screws with different specifications, and the tool has universality.
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Description

Technical Field

[0001] The utility model belongs to the technical field of aviation equipment, in particular to a tool for anti-loosening marking of aviation antenna screws. Background Art

[0002] In the aviation communications sector, product quality and reliability are receiving increasing attention. This is particularly true during the production process, where the reliability of standard fasteners between components, between components and structural components, and between structural components is crucial. These fasteners often loosen or fall off during product use, significantly impacting product quality and even threatening human life. Consequently, the assembly quality of standard fasteners is receiving increasing attention and attention. These standard fasteners primarily consist of screws, so visually inspecting the tightness of these screws during production and product use plays a crucial role in product reliability.

[0003] To ensure screw assembly quality, spring washers, nuts, or paint thread lockers are typically used to secure screws. All aviation products are marked with a red paint mark after tightening. The red paint mark extends from the top of the screw to the structural component as a continuous line. Products are often disassembled and repaired by commissioning personnel before shipment or during field use. Whether newly replaced screws have been tightened with thread lockers cannot be guaranteed, and it is difficult to identify whether the product has become loose during field use. The red paint mark primarily indicates: 1. that the screw has been tightened with thread lockers according to process requirements; 2. that the screw has been tightened to the required torque; and 3. whether the screw is loose. If the screw is loose, the red line on the screw will not align with the red line on the structural component, indicating that the screw must be tightened immediately. The red mark is usually applied with a paint pen or brush, but has been the subject of numerous requests for correction and complaints regarding poor consistency: the paint line is inconsistent, with varying lengths, thicknesses, and depths. Utility Model Content

[0004] The utility model provides a tool for anti-loosening marking of aviation antenna screws.

[0005] The technical solution for achieving the purpose of the utility model is: a tool for preventing the screws from loosening from being marked on aviation antennas, comprising:

[0006] A tooling handle, a stepped screw gland vertically arranged at one end of the tooling handle, the inner contour of the stepped screw gland matches the outer contour of the screw, and the stepped screw gland is slotted in a direction perpendicular to the tooling handle.

[0007] Preferably, the groove extends to the end where the tool handle is connected to the stepped screw gland, that is, the portion where the tool handle is connected to the stepped screw gland is also grooved.

[0008] Preferably, the step of the stepped screw gland closest to the tool handle is the first step, and a flat spring washer is provided at the first step.

[0009] Preferably, the side of the stepped screw cover perpendicular to the tooling handle covers at least one third of the side surface of the screw.

[0010] Preferably, the tool handle is provided with an adapter screw mark for marking the screw adapted to the current tool handle size.

[0011] Compared with the prior art, the present invention has the following significant advantages:

[0012] The utility model can be used to design similar tooling according to screws of different specifications with slight size changes, and the tooling is universal; by using the tooling for marking, the consistency of the mark shape is improved, the length and thickness of the mark are ensured to be consistent, and no cross-section phenomenon will occur.

[0013] The present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the structure of a tool for preventing the screws from loosening on aviation antennas.

[0015] Figure 2 A schematic diagram of the use of a tool for preventing the screws from loosening on aviation antennas. DETAILED DESCRIPTION

[0016] It is easy to understand that, based on the technical solution of the present invention, those skilled in the art can imagine various embodiments of the present invention without changing the essential spirit of the present invention. Therefore, the following specific embodiments and drawings are merely illustrative of the technical solution of the present invention and should not be regarded as the entire invention or as limiting or defining the technical solution of the present invention.

[0017] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0018] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0019] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0020] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] A tool for preventing the screws from loosening on an aviation antenna, comprising:

[0023] A tooling handle 36 and a stepped screw gland 34 are vertically arranged at one end of the tooling handle 36 . The inner contour of the stepped screw gland 34 matches the outer contour of the screw. The stepped screw gland 34 has a slot 35 in a direction perpendicular to the tooling handle.

[0024] In a further embodiment, the groove 35 extends to one end where the tooling handle 36 is connected to the stepped screw gland 34. That is, the portion where the tooling handle 36 is connected to the stepped screw gland 34 is also grooved.

[0025] In a further embodiment, the step of the stepped screw gland 34 closest to the tooling handle 36 is the first step, and a flat spring washer is provided at the first step.

[0026] In a further embodiment, a side of the stepped screw cover 34 that is perpendicular to the tooling handle 36 covers at least one-third of the side surface of the screw.

[0027] In a further embodiment, the tooling handle 36 is provided with an adapter screw mark for marking the screw adapted to the current tooling handle size.

[0028] A tool for marking screws against loosening in aviation antennas is designed. The tool requires three components to be used simultaneously: the tool, a brush, and red paint.

[0029] The brush, No. 3 paintbrush, has a thinner tip and meets the size requirements of the tooling center.

[0030] The tooling design of the anti-loosening mark is nylon 1010, with a thickness of 0.8mm

[0031] Paint: acrylic polyurethane red paint, acrylic polyurethane paint meets the product's three-proof effects.

[0032] like Figure 1 As shown, the overall height of the stepped screw gland 34 varies according to the screw gauge specifications, ensuring that the top of the tooling is pressed exactly against the top of the screw;

[0033] According to the different specifications of the screws, the arc and height of the tooling gland are different. The tooling ensures that the arc of the screw gland just covers one-third of the circumference of the screw to fix the stability of the tooling;

[0034] The sizes of the flat spring washers of the tooling glands vary according to the screw ruler specifications. The outer dimensions of the flat spring washers vary according to the screw specifications. To ensure the continuity of the marking, the sizes of the screws and spring washers must be consistent with the actual objects.

[0035] According to the different screw ruler specifications, the tooling gland red paint opening size is different, the size of the opening is suitable for the screw specifications, and ensure that the identification line extends from the top of the screw to the bottom of the screw and then to the structural parts for identification;

[0036] The length of the tooling handle can be designed according to product requirements to ensure the operability of the logo.

[0037] The paint chosen was acrylic polyurethane red paint.

[0038] A 1.5mm through hole is opened in the center of the tooling, passing through three surfaces: the top plane of the screw, the side of the screw, and the surface of the structural part in contact with the screw. Use a No. 3 small brush to apply red paint along the through hole in the center of the tooling to ensure that the marking will not be discontinuous.

[0039] Aviation antennas are installed on the top of the aircraft and have high vibration levels. All assembly screws must have anti-loosening marks. Through the anti-loosening mark inspection, first, it can be determined whether the screws have been disassembled; second, whether the screws have loosened; third, according to the red paint mark on the structural part, it can be determined whether the screws have fallen off; fourth, it can be determined whether the screws have been operated according to the process regulations.

[0040] Hold the tool handle 36 with one hand, clamp the stepped screw cover 34 on one side of the screw 33, and clamp the inner groove of the tool on the flat spring washer 32. After dipping the tip of the brush in paint, apply red paint on the screw from top to bottom along the center groove 35 of the tool. After applying, remove the tool.

Claims

1. A tool for preventing the screws from loosening on aviation antennas, characterized in that: include: A tool handle (36), a stepped screw gland (34) vertically arranged at one end of the tool handle (36), the inner contour of the stepped screw gland (34) matching the outer contour of the screw, the stepped screw gland (34) being slotted (35) in a direction perpendicular to the tool handle, the slot (35) extending to one end of the tool handle (36) connected to the stepped screw gland (34), that is, the portion where the tool handle (36) and the stepped screw gland (34) are connected is also slotted.

2. The tooling for preventing screw loosening of aviation antenna according to claim 1 is characterized in that: The step of the stepped screw gland (34) closest to the tool handle (36) is the first step, and a flat spring washer is provided at the first step.

3. The tooling for preventing screw loosening of aviation antenna according to claim 1 is characterized in that: The side of the stepped screw cover (34) perpendicular to the tool handle (36) covers at least one third of the side of the screw.

4. The tooling for preventing screw loosening of aviation antenna according to claim 1, characterized in that: The tooling handle (36) is provided with an adapter screw mark for marking the screw adapted to the current tooling handle size.