Waterproof protection device for aviation plug

Abstract

The invention provides a waterproof protection device for an aviation plug, and the device comprises a box body which is used for accommodating an internal detection device. The side wall of the box body is provided with a through hole which is used for guiding an aviation plug to pass through and to be connected with a detection device in the box body. The annular gasket is fixed in the side wall, extending in the axial direction, of the through hole; the annular gasket is arranged in the box body and is elastic, and when the aviation plug is installed, the annular gasket is tightly attached to the peripheral surface of the aviation plug so as to prevent water from entering the box body. And through the elastic design of the annular gasket, the tight attachment between the aviation plug and the box body is ensured, moisture intrusion is effectively prevented, and the overall sealing performance is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water body monitoring equipment, and in particular to a waterproof protection device for aviation plugs. Background Art

[0002] Urban drainage pipe networks are an important part of urban infrastructure. They are responsible for the transportation of rainwater and sewage, and play a vital role in maintaining urban environmental sanitation, preventing waterlogging, and protecting the quality of the water environment. However, since drainage pipe networks are mostly located in underground humid environments and have complex construction and use conditions, they are prone to structural and functional defects, such as rupture, deformation, misalignment, seepage, leakage, siltation, and blockage. These problems seriously affect the normal operation of the pipe network. Monitoring of drainage pipe networks is a key link to ensure their normal operation. Monitoring equipment can collect key data such as liquid level, flow velocity, and flow in real time, providing data support for the operation scheduling and maintenance management of the pipe network.

[0003] However, in a humid pipe network environment, the electronic components of the monitoring equipment are easily affected by moisture, resulting in short circuits and reduced measurement results. In particular, the wiring and terminal plug interfaces of the equipment are the main channels for moisture to enter. Therefore, how to effectively prevent water seepage in the equipment plug has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an aviation plug waterproof protection device, aiming to solve the technical problem of plug waterproofing.

[0005] The present disclosure provides an aviation plug waterproof protection device, comprising: a box body; a through hole is provided on the side wall of the box body, for guiding the aviation plug to pass through and connect with a detection device outside the box body;

[0006] The annular gasket is fixed in the side wall of the through hole extending along the axial direction; and the annular gasket is elastic and fits tightly on the outer surface of the aviation plug when the aviation plug is installed to prevent moisture from entering the interior of the box body.

[0007] In one embodiment of the present disclosure, a plurality of glue storage grooves are provided on both the front and back sides of the annular gasket, and the glue storage grooves are used to store sealing glue.

[0008] In one embodiment of the present disclosure, the glue storage groove is a series of concentric grooves distributed on the surface of the annular gasket to form a continuous glue storage path so that the sealant is distributed along the radial direction of the annular gasket.

[0009] In one embodiment of the present disclosure, a plurality of metal strips are disposed inside the annular gasket, and the metal strips are distributed along the longitudinal direction of the annular gasket and embedded in the annular gasket.

[0010] In an embodiment of the present disclosure, a plurality of leakage detection holes are longitudinally provided on the annular washer.

[0011] The leakage detection holes are through holes penetrating the annular washer. When the annular washer is extruded by an external force, the air in the leakage detection holes is discharged to form a ventilation channel.

[0012] The edge of the leakage detection hole is adjacent to the metal strip to form an oxidation reaction induction area; when leakage occurs in the oxidation reaction induction area, moisture penetrates into the leakage detection hole and reacts with the adjacent metal strip to produce a recognizable color change, thereby indicating the occurrence of leakage.

[0013] In an embodiment of the present disclosure, the leakage detection holes are evenly spaced along the edge of the raised glue storage groove.

[0014] In an embodiment of the present disclosure, the annular washer is made of transparent silicone material.

[0015] In an embodiment of the present disclosure, the orifice of the through hole on the side wall of the box body is roughened by an orifice grinding rotor; the orifice grinding rotor includes: a concave shaft fixing groove, a first grinding bracket, and a first grinding tooth; wherein,

[0016] The concave shaft fixing groove is used to insert into the orifice to ensure the positioning of the orifice grinding rotor.

[0017] The first grinding bracket is composed of a plurality of factory-shaped structures, symmetrically distributed around the center line of the concave shaft fixing groove, providing centrally symmetric support; the first grinding bracket is made of an elastic material, allowing the insertion depth to be changed to adapt to orifices of different diameters.

[0018] The first grinding tooth is a factory-shaped structure distributed outward and sleeved on the first grinding bracket; uneven small particles protrude from the soles of the factory-shaped structure of the first grinding tooth, which are used to form roughened abrasion marks that can store the glue from the annular washer on both sides of the orifice during rotation.

[0019] In an embodiment of the present disclosure, the surface of the aviation plug is roughened by a shaft grinding rotor; the shaft grinding rotor includes: a convex shaft fixing groove, a second grinding bracket, and a second grinding tooth; wherein,

[0020] The convex shaft fixing groove is used to be sleeved on the aviation plug to ensure the positioning of the shaft grinding rotor.

[0021] The second grinding bracket is composed of a plurality of factory-shaped structures, symmetrically distributed around the center line of the convex shaft fixing groove, providing centrally symmetric support; the second grinding bracket is made of an elastic material, allowing the insertion depth to be changed to adapt to aviation plugs of different diameters.

[0022] The second grinding teeth are inwardly distributed in a "F"-shaped structure and are sleeved on the second grinding bracket; the bottom of the "F"-shaped structure of the grinding teeth is designed with uneven small particles protruding, which are used to form roughened wear marks on the surface of the aviation plug when rotating, which can store the glue from the annular gasket.

[0023] As described above, the aviation plug waterproof protection device provided in the embodiment of the present disclosure has at least the following technical effects:

[0024] (1) The sealing glue is stored in the glue storage groove on the annular gasket, and the elastic design of the annular gasket ensures a close fit between the aviation plug and the box body, effectively preventing moisture intrusion and improving the overall sealing performance.

[0025] The leakage detection hole on the annular gasket and the metal strip form an oxidation reaction sensing area, which can visually indicate leakage through color changes, realize real-time monitoring and early warning of leakage, improve the convenience of maintenance and the reliability of the protection box. The metal strip inside the annular gasket enhances its mechanical strength and prevents the annular gasket from deforming when the aviation plug passes through.

[0026] (3) By roughening the opening of the through hole on the side wall of the box body, not only the contact area and friction coefficient between the opening and the annular gasket are increased, the sealing of the connection is improved, and the penetration of moisture and other foreign substances is effectively prevented, but also the elastic grinding bracket is adapted to openings of different diameters, which enhances the versatility and adaptability of the technology. In addition, the roughened grinding marks can store the glue from the annular gasket, which helps to evenly distribute the glue and further improve the sealing effect.

[0027] (4) The roughening treatment of the aviation plug surface increases the roughness of the plug surface, improves the adhesion between the plug and the gasket, and enhances the stability of the connection. The elastic grinding bracket can adapt to aviation plugs of different diameters, increasing the scope of application of the technology. The inward-distributed V-shaped grinding tooth design makes the roughening treatment more concentrated and efficient, improving the convenience and efficiency of the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic structural diagram of an aviation plug waterproof protection device in one embodiment of the present disclosure is shown.

[0029] Figure 2 Schematic diagram showing the structure of the orifice grinding rotor

[0030] Figure 3 Schematic diagram showing the structure of the shaft grinding rotor.

[0031] Figure 4a Schematic diagram showing the hole grinding rotor in action.

[0032] Figure 4b Schematic diagram showing the shaft grinding rotor at work.

[0033] Figure 5 A schematic structural diagram of an annular gasket in one embodiment of the present disclosure is shown.

[0034] Component number description

[0035] Box 1

[0036] Via 2

[0037] Ring washer 3

[0038] Glue storage tank 31

[0039] Leak detection hole 32

[0040] Orifice grinding rotor 4

[0041] Inner concave shaft fixing groove 41

[0042] First grinding support 42

[0043] First grinding tooth 43

[0044] Shaft grinding rotor 5

[0045] Externally protruding shaft fixing groove 51

[0046] Second grinding support 52

[0047] Second grinding tooth 53

[0048] Aviation plug 6 DETAILED DESCRIPTION

[0049] The following is an explanation of the embodiments of the present disclosure by specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the information disclosed by the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in the present disclosure can also be modified or changed in various ways according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0050] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0051] Aviation plugs, as a type of high-reliability connector, were originally designed specifically for the aviation and aerospace fields. With their excellent performance and versatility, they have been widely used in many key fields such as military, medical equipment, industrial automation and even railway transportation. These plugs are designed to be stable in extreme environments, and have characteristics such as waterproof, dustproof, anti-vibration and anti-static, ensuring that they can maintain normal operation under harsh conditions such as high and low temperatures and humidity changes. The significant advantage of aviation plugs lies in their multi-functional integration capabilities, which can not only realize the power supply function, but also simultaneously perform signal transmission and data exchange to meet the diverse needs in complex electronic systems. In terms of material selection, these plugs are made of high-strength alloys or high-performance engineering plastics, which can withstand strong mechanical shock and environmental corrosion, significantly improving the durability and durability of the plugs. In addition, the connection mechanism of the aviation plug is precisely designed, and the close fit between the plug and the socket is combined with advanced waterproof, dustproof and shockproof technologies, which not only ensures the stability of the electrical connection, but also ensures the reliability of signal transmission. This attention to detail and strict control of quality make aviation plugs an indispensable component in various high-end applications. They play a vital role in ensuring the normal operation of equipment and accurate data transmission. In urban sewer networks, since these environments are usually humid and chemicals may be present, the waterproof and dustproof properties of aviation plugs can protect the connection from damage by moisture and pollutants. In addition, their high protection level and durability mean that stable connections can be maintained even in harsh underground environments, reducing maintenance costs and potential failure risks. In order to prevent water from entering the interface of the aviation plug, the present disclosure proposes an aviation plug.

[0052] like Figure 1 As shown, a schematic structural diagram of the aviation plug waterproof protection device disclosed in the present invention is shown, and the aviation plug waterproof protection device includes: a box body 1, a through hole 2 and an annular gasket 3.

[0053] The box body 1; a through hole 2 is provided on the side wall of the box body 1 for guiding the aviation plug 6 to pass through and connect with the detection device outside the box body 1.

[0054] Specifically, the box body 1 can be connected to multiple detection devices, such as temperature detectors and pH detectors, in order to monitor the water quality in real time in a humid environment such as a city sewer network. These detection devices are crucial for monitoring and preventing the impact of sewage on the urban water environment, and also help to respond to and deal with possible pollution in a timely manner. The aviation plug 6 is connected to the detection device through the through hole 2 on the side wall of the box body 1, and the data collected by the detection device is transmitted to an external device, so that the detection data can be further analyzed and used, providing a scientific basis for the management and maintenance of the urban drainage system.

[0055] In some embodiments, the through hole 2 on the box body 1 is precisely designed according to the diameter and shape of the aviation plug 6 to ensure that the aviation plug 6 can pass through smoothly and achieve a stable connection with the detection device inside the box body 1.

[0056] In order to facilitate installation and ensure the reliability of connection, before installation, the opening of the through hole 2 and the surface of the aviation plug 6 are finely roughened by grinding the rotor. The purpose of this step is to make the fit between the aviation plug 6, the gasket and the through hole 2 tighter and improve the sealing.

[0057] In some embodiments, the opening of the through hole on the side wall of the box body is roughened by the opening grinding rotor 4. Figure 2 As shown, the orifice grinding rotor 4 includes: an inner concave shaft fixing groove 41, a first grinding bracket 42 and a first grinding tooth 43; wherein, the inner concave shaft fixing groove 41 is used to be inserted into the orifice to ensure the positioning of the orifice grinding rotor; the first grinding bracket 42 is composed of a plurality of V-shaped structures, which are symmetrically distributed around the center line of the inner concave shaft 41 fixing groove to provide centrally symmetrical support; the first grinding bracket 42 is made of elastic material, allowing the orifices of different diameters to be adapted by changing the insertion depth; the first grinding tooth 43 is an outwardly distributed V-shaped structure, and is sleeved on the first grinding bracket 42; the V-shaped structure of the first grinding tooth 43 is designed with uneven small particles protruding at the bottom, which is used to form roughened wear marks on both sides of the orifice when rotating to store the glue from the annular gasket.

[0058] like Figure 4a As shown, a schematic diagram showing the working process of shaft grinding rotor is shown.

[0059] In some embodiments, the surface of the aviation plug is roughened by a shaft grinding rotor 5. Figure 3 As shown, the shaft grinding rotor 5 includes: an outer convex shaft fixing groove 51, a second grinding bracket 52 and a second grinding tooth 53; wherein, the outer convex shaft fixing groove 51 is used to be mounted on the aviation plug to ensure the positioning of the shaft grinding rotor 5; the second grinding bracket 52 is composed of a plurality of V-shaped structures, which are symmetrically distributed around the center line of the outer convex shaft fixing groove 51 to provide centrally symmetrical support; the second grinding bracket 52 is made of elastic material, allowing aviation plugs of different diameters to be adapted by changing the insertion depth; the second grinding tooth 53 is an inwardly distributed V-shaped structure, and is mounted on the second grinding bracket 52; the V-shaped structure of the grinding tooth 53 is designed with uneven small particles protruding at the bottom, which is used to form roughened wear marks on the surface of the aviation plug when rotating, which can store the glue from the annular gasket.

[0060] like Figure 4b As shown, a schematic diagram showing the working process of shaft grinding rotor is shown.

[0061] The annular gasket 3 is fixed in the side wall of the through hole 2 extending axially; and the annular gasket 3 is elastic. When the aviation plug 6 is installed, it fits tightly on the outer surface of the aviation plug 6 to prevent moisture from entering the box body 1.

[0062] Specifically, the annular gasket 3 is a sealing component specially designed for the through hole 2, and its fixing method ensures that the annular gasket 3 is stably positioned in the side wall extending along the axial direction of the through hole 2. The elastic characteristics of the annular gasket 3 are derived from its material properties, so that during the installation of the aviation plug 6, the annular gasket 3 can fit closely to the outer surface of the aviation plug 6, thereby exerting its sealing effect and effectively preventing moisture from penetrating into the interior of the box body 1.

[0063] In some embodiments, the annular gasket 3 is made of a transparent silicone material, which has excellent flexibility and elasticity and can fit closely to the outer surface of the aviation plug 6 when it is installed to form an effective seal. In addition, the silicone material has high chemical stability and is resistant to a variety of chemical substances, and can maintain sealing performance in the sewer network pipe.

[0064] In some embodiments, Figure 5 As shown, a plurality of glue storage grooves 31 are provided on both the front and back sides of the annular gasket 3 , and the glue storage grooves 31 are used to store sealing glue so that the glue can evenly overflow and fill the roughening marks around the opening of the box body when the aviation plug 6 is installed.

[0065] Specifically, before use, the annular gasket 3 needs to be carefully pre-treated to ensure its sealing performance. The specific operation is to immerse the gasket 3 in the sealing glue and stir it thoroughly, in order to remove the air in the glue storage tank 31 and avoid the formation of bubbles that may affect the sealing effect. After stirring, the annular gasket 3 is taken out of the sealing glue and accurately embedded in the through hole 2 of the box body 1 for fixing.

[0066] When the aviation plug 6 is installed through the through hole 2, the glue storage groove 31 on the annular gasket 3 will be squeezed due to the installation force, causing the sealing glue therein to evenly overflow, further filling and sealing the rough wear marks between the hole and the aviation plug. This process not only ensures the sealing between the aviation plug and the box body, but also enhances the overall sealing effect through the uniform distribution of glue, thereby effectively preventing moisture and other foreign substances from entering the interior of the box body 1, and protecting the internal detection device from the influence of the humid environment.

[0067] Exemplarily, the glue storage groove 31 is presented in the form of concentric circular grooves, which are evenly distributed in a concentric circular pattern on the surface of the gasket 3. Such a design concept allows the sealant to form a continuous glue storage path in the radial direction of the gasket 3, ensuring uniform distribution and effective filling of the sealant.

[0068] The design of the concentric groove not only improves the sealing efficiency of the annular gasket 3, but also enhances its adaptability to installation angles and force changes. Regardless of the angle at which the aviation plug 6 passes through the through hole 2, or what force is applied during the installation process, the concentric groove can ensure that the sealant overflows evenly, thereby maintaining the sealing performance between the gasket 3 and the aviation plug 6.

[0069] In order to enhance the structural strength of the annular gasket 3, in some embodiments, a metal strip is embedded in the annular gasket 3. The metal strip is designed to be evenly distributed along the longitudinal direction of the annular gasket 3 and is tightly combined with the gasket material through a special embedding process. This embedding process ensures the integration of the metal strip and the annular gasket 3, so that when the gasket is squeezed by external force, its shape and structural integrity can be maintained.

[0070] By embedding the metal strip, the mechanical strength of the annular gasket 3 is significantly enhanced. The addition of the metal strip is equivalent to forming a reinforced skeleton inside the gasket, which not only improves the pressure resistance of the gasket, but also effectively prevents the gasket from being deformed due to excessive pressure. This design is particularly suitable for application scenarios that need to withstand greater installation pressure. For example, when the aviation plug 6 passes through the through hole 2, the metal strip can ensure the sealing contact between the annular gasket 3 and the aviation plug 6, avoiding the reduction of sealing performance due to gasket deformation.

[0071] In order to promptly detect whether the annular gasket 3 is leaking, in some embodiments, the annular gasket 3 is provided with a plurality of longitudinal leakage detection holes 32, and these detection holes are through holes penetrating the annular gasket 3. Figure 5 As shown, when the annular gasket 3 is squeezed, the leakage detection holes 32 can discharge the air in the holes to form a ventilation channel, thereby ensuring the ventilation performance of the leakage detection holes 32 during the installation and use of the gasket.

[0072] More importantly, the edge of the leakage detection hole 32 is adjacent to the metal strip inside the annular gasket 3, and together they form an oxidation reaction sensing area. This design allows moisture to penetrate into the leakage detection hole 32 when the annular gasket 3 leaks, and contact the adjacent metal strip, synergizing with the gas to accelerate the oxidation reaction. Metal oxidation reactions (such as iron and copper) will generate colored oxidation products, which will cause the gasket 3 material to change color in the leakage area.

[0073] This intuitive color change provides a simple and effective method for monitoring the sealing state of the gasket 3. Once the color change is detected, the leakage position of the gasket 3 can be quickly identified, so that timely measures can be taken to repair or replace it, avoiding the leakage problem affecting the sealing performance of the entire aviation plug sealing protection box and the normal operation of the internal detection device.

[0074] Exemplarily, the leakage detection holes 32 are evenly spaced and distributed along the raised edge of the glue storage tank 31. This layout allows the detection holes to form a continuous monitoring path on the entire annular gasket 3, ensuring the comprehensiveness of leakage detection.

[0075] In order to better illustrate the technical solution of the present disclosure, the complete working process of the aviation plug waterproof protection device in the city sewer network will be demonstrated below.

[0076] First, the box body is placed at the predetermined position of the city's sewer network pipe. A through hole is provided on the side wall of the box body, which is specially designed to guide the aviation plug through and connect to the detection device outside the box body. Before installation, the through hole opening on the side wall of the box body needs to be roughened. This step is completed by using an orifice grinding rotor. The insertion depth of the orifice grinding rotor must ensure that the grinding range is slightly larger than the edge of the orifice by about 5mm to ensure that the roughening effect covers the entire area that needs to be sealed. During operation, press the orifice grinding rotor downward and rotate it at a slow speed until a uniform white mark appears on the surface of the orifice, indicating that the roughening treatment is complete.

[0077] Similarly, the surface of the aviation plug also needs to be roughened to enhance the adhesion with the ring gasket. Use the shaft grinding rotor to ensure that the grinding unit is in the middle of the aviation plug ring, press down and rotate slowly until the surface turns white to ensure the roughening effect.

[0078] Before installing the aviation plug, the glue storage tank on the ring gasket needs to be pre-filled with sealant. This step is to ensure that the glue can overflow evenly during the installation process, fill the roughening wear marks, and achieve a complete seal between the aviation plug and the orifice.

[0079] During installation, the aviation plug is passed through the roughened through hole and connected to the detection device in the box. Since the annular gasket is elastic, when the aviation plug passes through, the annular gasket will be squeezed, causing the glue in the glue storage tank to evenly overflow and fill the roughened wear marks.

[0080] After installation, the inside of the ring gasket needs to be checked regularly to ensure the long-term stability of the sealing box. During the inspection, use a light source to illuminate the inside of the ring gasket. If brown scattering occurs, it indicates that moisture has penetrated; if there is no scattering phenomenon, it means that the seal is in good condition and the system is safe.

[0081] In summary, the present disclosure provides an aviation plug waterproof protection device, which is mainly composed of a box body, an annular gasket and a through hole, wherein the box body is designed to accommodate the aviation plug, and the through hole guides the aviation plug to pass through and connect with external equipment. The annular gasket is fixed in the side wall of the through hole, and is made of transparent silicone material. It has elasticity and can fit the aviation plug tightly to prevent moisture penetration. The gasket is provided with a glue storage tank to store sealant, and the glue storage tank is a concentric circular groove to form a continuous glue storage path. The orifice of the box body and the surface of the aviation plug have roughened wear marks after roughening treatment. When the annular gasket is installed, the glue will overflow due to squeezing, thereby filling the roughened wear marks, thereby achieving complete sealing between the box body, the annular gasket and the aviation plug.

[0082] The above embodiments are merely illustrative of the principles and effects of the present disclosure, and are not intended to limit the present disclosure. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present disclosure. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present disclosure shall still be covered by the claims of the present disclosure.

Claims

1. A waterproof protection device for aviation plugs, characterized in that: Comprising: A box body; A through hole is provided on the side wall of the box body for guiding an aviation plug to pass through and connect with a detection device outside the box body; An annular washer is fixed in the side wall of the through hole extending axially; and the annular washer has elasticity and tightly fits on the peripheral surface of the aviation plug when the aviation plug is installed to prevent moisture from entering the interior of the box body.

2. The aviation plug waterproof protection device according to claim 1, characterized in that: A plurality of glue storage grooves are provided on both the front and back surfaces of the annular washer, and the glue storage grooves are used for storing sealing glue.

3. The aviation plug waterproof protection device according to claim 2, characterized in that: The glue storage grooves are a series of concentric circular grooves, which are distributed on the surface of the annular washer to form a continuous glue storage path, so that the sealing glue is distributed along the radial direction of the annular washer.

4. The aviation plug waterproof protection device according to claim 1, characterized in that: A plurality of metal strips are arranged inside the annular washer, and the metal strips are longitudinally distributed along the annular washer and are embedded and fixed in the annular washer.

5. The aviation plug waterproof protection device according to claim 4, characterized in that: A plurality of leakage detection holes are longitudinally provided on the annular washer, The leakage detection holes are through holes penetrating the annular washer. When the annular washer is externally squeezed, the air in the leakage detection holes is discharged to form a ventilation channel; The edge of the leakage detection hole is adjacent to the metal strip to form an oxidation reaction induction area; when leakage occurs in the oxidation reaction induction area, moisture penetrates into the leakage detection hole and reacts with the adjacent metal strip to produce a recognizable color change, thereby indicating the occurrence of leakage.

6. The waterproof protection device for aviation plug according to claim 5, characterized in that: The leakage detection holes are evenly spaced along the raised edge of the glue storage groove.

7. The aviation plug waterproof protection device according to claim 1, characterized in that: The annular washer is made of transparent silica gel material.

8. The aviation plug waterproof protection device according to claim 2, characterized in that: The orifice of the through hole on the side wall of the box body is roughened by an orifice grinding rotor; the orifice grinding rotor includes: a concave shaft fixing groove, a first grinding bracket and a first grinding tooth; wherein, The concave shaft fixing groove is used for inserting into the orifice to ensure the positioning of the orifice grinding rotor; The first grinding bracket is composed of a plurality of factory-shaped structures, which are symmetrically distributed around the center line of the concave shaft fixing groove to provide centrosymmetric support; the first grinding bracket is made of an elastic material and allows the insertion depth to be changed to adapt to orifices with different diameters; The first grinding tooth is a factory-shaped structure distributed outward and sleeved on the first grinding bracket; uneven small particles protrude from the soles of the factory-shaped structure of the first grinding tooth, and are used to form roughened abrasion marks that can store glue from the annular washer on both sides of the orifice when rotating.

9. The aviation plug waterproof protection device according to claim 2, characterized in that: The surface of the aviation plug is roughened by a shaft grinding rotor; the shaft grinding rotor includes: a convex shaft fixing groove, a second grinding bracket and a second grinding tooth; wherein, The convex shaft fixing groove is used for sleeving on the aviation plug to ensure the positioning of the shaft grinding rotor; The second grinding bracket is composed of a plurality of factory-shaped structures, which are symmetrically distributed around the center line of the convex shaft fixing groove to provide centrosymmetric support; the second grinding bracket is made of an elastic material and allows the insertion depth to be changed to adapt to aviation plugs with different diameters; The second grinding teeth are inwardly distributed in a "F"-shaped structure and are sleeved on the second grinding bracket; the bottom of the "F"-shaped structure of the grinding teeth is designed with uneven small particles protruding, which are used to form roughened wear marks on the surface of the aviation plug when rotating, which can store the glue from the annular gasket.

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