Liquid protection device

Abstract

A liquid protection device is arranged above airborne equipment with waterproof requirements and comprises a water collector, flanges extending upwards are arranged on the periphery of the water collector, and color-changing test paper capable of changing color when encountering water is arranged in the water collector. The liquid protection device further comprises a drainage valve capable of being switched and closed manually and a supporting mechanism capable of adjusting the installation form. By means of the liquid protection device, the position of a liquid leakage point can be accurately positioned, the reproducibility of the leakage amount can be conveniently achieved, and the liquid protection device can effectively adapt to installation space limitation of different airborne devices.

Description

Technical Field

[0001] The present invention relates to a liquid protection device, and more particularly to a liquid protection device suitable for aircraft onboard equipment. Background Art

[0002] Aircraft are equipped with a variety of electrical equipment and complex precision instruments. During flight, in rainy and high humidity environments, moisture can easily enter key areas of the aircraft, such as the electronic equipment compartment, from the cockpit and cabin floor, causing equipment failure and affecting flight safety. When the amount of liquid leakage is small and the water vapor evaporates, it is impossible to check and quickly locate the leakage point. Therefore, it is urgent to design an aircraft waterproof device that can reproduce leakage phenomena, locate leakage points, and facilitate disassembly and assembly.

[0004] Traditional aircraft waterproofing devices are used, such as waterproof panels under the lavatory to protect batteries, and waterproof panels under the cabin floor to protect remote power distribution devices. A waterproof panel is installed on the top of the equipment rack in the electrical compartment. After leaking water flows into the waterproof panel, it drips to the equipment below at the end, which has a drainage function.

[0005] The current aircraft waterproofing devices have the following problems:

[0006] (1) It is impossible to locate the liquid leakage point.

[0007] Currently, two types of waterproof baffles are commonly used. One is a waterproof baffle without a diversion function. The liquid will randomly flow around the waterproof baffle and be discharged through the drainage holes at the bottom of the fuselage. The other is a waterproof baffle with a diversion function. The liquid will be discharged directly from the diversion pipe.

[0008] For these two types of waterproof baffles, once a small amount of liquid leaks, the liquid may evaporate or be discharged. Therefore, it is difficult for ground personnel to find the leakage problem and difficult to detect the wading traces, so it is impossible to determine whether liquid has leaked or accurately locate the leakage point.

[0009] (2) It is difficult to determine the amount of leakage.

[0010] Even after a liquid leak is discovered, it is impossible to use a waterproof baffle to reproduce the amount of the leak. There is a lack of a collector for the leaked liquid and a drainage device for the collector. Therefore, it is not conducive to determining the cause of the liquid leakage, reproducing the fault, and reducing the impact of the hazard.

[0011] (3) The installation form cannot be adjusted

[0012] Aircraft waterproof baffles are generally installed on the floor structure in a supporting manner, and some are installed on the cabin floor in a hanging manner. These devices have a single installation form, and usually cannot change their shape after installation, and will hinder the disassembly and assembly of the protected equipment when the surrounding space is limited. In addition, this type of waterproof board has strict requirements on the installation space, and its poor flexibility will also make it inconvenient to disassemble and assemble.

[0013] In view of the above-mentioned deficiencies in the prior art, there is an urgent need to provide a liquid protection device, by which the leakage point of the leaking liquid can be simply and conveniently located on the aircraft, and the liquid leakage process can also be reproduced. Summary of the invention

[0014] The present disclosure is made to solve the above-mentioned technical problems, and its purpose is to provide a liquid protection device, which can effectively realize liquid leakage protection of airborne equipment and locate the leakage point in time and accurately.

[0015] In order to achieve the purpose of the present disclosure, a liquid protection device is provided, which is arranged above an airborne device with a waterproof requirement. The liquid protection device includes a water collector, and flanges extending upward are arranged around the water collector, and a color-changing test paper that can change color when exposed to water is arranged in the water collector.

[0016] According to the structure as described above, the color-changing test paper that changes color when exposed to water can detect liquid leakage in a timely and effective manner, and accurately locate the liquid leakage point, thereby facilitating maintenance personnel to perform leakage detection and troubleshooting.

[0017] Preferably, a boss portion protruding upward is provided at a middle position of the water collector, and a guide groove for the leaked liquid to flow is formed between the boss portion and the flange.

[0018] According to the above-described configuration, the boss portion protruding upward can cause the liquid leaking into the water collector to automatically flow into the guide groove by gravity, thereby effectively collecting the leaked liquid for leakage reproduction.

[0019] Preferably, the color-changing test paper is laid on the boss portion in a detachable manner.

[0020] According to the above-mentioned structure, the color-changing test paper can be conveniently replaced after the color-changing test paper has been used or expired, so that the leaked liquid can be detected promptly and accurately.

[0021] Preferably, the guide groove is formed in a strip shape.

[0022] According to the above-described structure, by designing the guide groove to be in the form of a strip groove located at the lower end of the water collector, the area of ​​the boss portion can be effectively enlarged, so that the liquid leakage position can be more effectively identified.

[0023] Preferably, the water collector is installed in a manner inclined relative to a horizontal plane, and a drainage outlet is formed at a position of the guide groove that is located at the lowest position relative to the horizontal plane.

[0024] According to the above configuration, by providing the drain port at a position below the sump that is inclined with respect to the horizontal plane, liquid leaking into the sump can automatically flow to the drain port by gravity and be discharged to the outside.

[0025] Preferably, a drain valve is installed at the drain outlet of the water collector, and the drain valve can be switched between an open and closed state by manually pressing.

[0026] Preferably, the drain valve comprises a plugging portion, a sliding portion and a pressing portion, and the sealing and releasing of the plugging portion are achieved by manually pressing the pressing portion to drive the sliding block to slide in the sliding portion.

[0027] According to the above-mentioned structure, by providing a drain valve that can be manually closed, the switching between the drain and water collection functions can be achieved. When the drain valve is closed, the leaked liquid is collected by the water collector, thereby achieving the fault reproduction of liquid leakage.

[0028] Preferably, the liquid protection device is fixed to the aircraft fuselage through a supporting mechanism in a supporting and hanging mounting structure.

[0029] Preferably, the supporting mechanism includes a vertical mounting member, an inclined mounting member and a rotating connecting member, the vertical mounting member is vertically mounted relative to a horizontal plane, the inclined mounting member is inclined relative to the horizontal plane, one end of the vertical mounting member and the inclined mounting member are respectively connected to different parts of the water collector via the rotating connecting member in a manner that allows them to rotate 360 ​​degrees relative to the water collector, and the other ends are fixedly connected to each other.

[0030] According to the structure as described above, the water collector 10 can be fixedly installed relative to the aircraft by means of triangular support, and the installation angle of the water collector can be adjusted by rotating the connecting piece, thereby being able to effectively adapt to the installation space limitations of different airborne equipment.

[0031] Preferably, a clamping portion is provided on the vertical mounting member, and a clamped portion is provided on the inclined mounting member, and the vertical mounting member and the inclined mounting member are fixedly connected by the clamping portion and the clamped portion.

[0032] According to the above configuration, the vertical mounting member can be fixed relative to the inclined mounting member through the simple structure of the engaging portion and the engaged portion, which has a simple structure, is convenient to operate, and is easy to adjust.

[0033] Preferably, a plurality of the engaging portions are provided on the vertical mounting member at intervals from each other.

[0034] Preferably, the engaging portion is continuously provided on the vertical mounting member.

[0035] According to the structure as described above, the water collector can be adjusted to different desired installation angles, thereby being able to effectively adapt to different installation environment requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] With reference to the above purposes, the technical features of the present invention are clearly described in the following technical scheme, and its advantages are obvious from the following detailed description with reference to the accompanying drawings, which show preferred embodiments of the present invention by way of example without limiting the scope of the inventive concept.

[0037] Figure 1 It is a design principle block diagram of the liquid protection device of the present invention.

[0038] Figure 2A and Figure 2B It is a schematic diagram of the overall structure of the liquid protection device of the present invention.

[0039] Figure 3 It is a color change display principle diagram of the water collector of the liquid protection device of the present invention.

[0040] Figure 4 It is a schematic diagram of the overall structure of the water collector of the liquid protection device of the present invention.

[0041] Figure 5 It is a schematic diagram of the overall structure of the drain valve of the liquid protection device of the present invention.

[0042] Figure 6 It is a structural schematic diagram of the plugging portion of the drain valve of the liquid protection device of the present invention.

[0043] Figure 7 It is a schematic structural diagram of the sliding portion of the drain valve of the liquid protection device of the present invention.

[0044] Figure 8 It is a schematic diagram of an exploded view of the sliding portion of the drain valve of the liquid protection device of the present invention.

[0045] Fig. 9 It is a schematic structural diagram of the pressing portion of the drain valve of the liquid protection device of the present invention.

[0046] Fig. 10A and Fig. 10BThey are schematic diagrams of the overall structure of the supported installation and suspended installation of the liquid protection device of the present invention respectively. Explanation of symbols

[0047] 1 Liquid protection device; 10 water collector; 11 boss part; 12 diversion trough; 13. Drainage outlet; 20 Drain valve; 21 Plug head; 211 elastic parts; 212 flanges; 22 sliding part; 221 valve core; 222 inner sleeve; 223 outer sleeve; 224 Slide Block; 23 pressing part; 24 water outlet; 30 support mechanism; 31 vertical mounting piece; 32 tilt mounting; 33 rotating connecting piece; 2. Airborne equipment; BS color changing test paper. DETAILED DESCRIPTION

[0048] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0049] Although the present invention is described in conjunction with exemplary embodiments, it should be appreciated that this description is not intended to limit the present invention to the exemplary embodiments described below. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modifications, equivalent forms and other embodiments that may be included within the spirit and scope of the present invention as defined by the appended claims.

[0050] In view of the three technical problems existing in the above-mentioned prior art, the present invention redesigns the liquid protection device of the present invention mainly around the three purposes of leakage point identification, reproducible leakage amount and adjustable installation form.

[0051] like Figure 1 As shown, for leakage point identification, it is considered to determine the location of the leakage point at the dripping point above the waterproof device by using a color-changing test paper that changes color irreversibly when it comes into contact with water, thereby solving the technical problem of the difficulty in locating the leakage point above the traditional waterproof board.

[0052] In order to make the leakage amount reproducible, a drain valve that can be manually closed is used, and the opening and closing of the plug of the waterproof device is realized according to the principle of relative motion between objects, thereby realizing the switching of the "drainage" and "water collection" functions. For example, when the drain valve is closed, a water collector is used to collect the leaked liquid, and the leaked liquid in the water collector is drained by opening the drain valve.

[0053] The amount of water collected by the device is used as a criterion for judging the amount of liquid leakage, thereby solving the technical problem that the amount of liquid leakage of traditional waterproof boards is difficult to reproduce and judge.

[0054] In view of the adjustable installation form, a hinge that can rotate 360° is designed to change the installation form of the waterproof device, so that the waterproof baffle can be installed in a downward supporting manner or in an upward hanging manner, thereby solving the technical problem that the traditional fixed waterproof board installation form is non-adjustable.

[0055] like Figure 2A and Figure 2B As shown, the liquid protection device 1 of the present invention is arranged above the airborne equipment 2 that needs waterproof maintenance, and mainly includes a water collector 10, a drainage valve 20 and a supporting mechanism 30.

[0056] Below, refer to Figures 3 to 10B , the specific implementation methods of the various functional parts of the liquid protection device 1 of the present invention are explained. <Leak point identification>

[0057] like Figure 3 As shown, in the liquid protection device 1 of the present invention, a color-changing test paper BS is laid on the upper surface of the water collector 10 facing the liquid leakage point, and the position of the liquid leakage is determined by the color-changing test paper BS.

[0058] The material property of the color-changing test paper BS is that a powdered bleaching agent, such as calcium hypochlorite (mostly used for bleaching pulp), is added after dyeing. In a dry state, the color-changing test paper BS is colored. After encountering water, it blends with the bleach in the material to bleach the surrounding color, thereby effectively locating the liquid leakage point.

[0059] like Figure 4 As shown, the water collector 10 of the liquid protection device 1 of the present invention is formed in the form of a substantially rectangular tray, and flanges are vertically arranged around the tray so as to collect leaked liquid from the leakage point above the water collector 10 .

[0060] A boss portion 11 is provided at the middle position of the water collector 10 and protrudes upward from the upper surface of the water collector 10 . The boss portion 11 is formed in a substantially rectangular shape with a center that coincides with the center of the water collector 10 and a small area.

[0061] A color-changing test paper BS that changes color when immersed in water is laid on the boss portion 11 . The color-changing test paper BS is fixedly mounted on the upper surface of the boss portion 11 by four fasteners, so that it can be easily replaced and the operation is simple.

[0062] From the above description, it can be known that a guide groove 12 is formed between the flange of the water collector 10 and the boss portion 11. The guide groove 12 is formed in an annular shape. After the liquid leaks from the leakage point to the surface of the boss portion 11, the color of the color-changing test paper BS at the dripping position is bleached, and then flows into the guide groove 12, and is discharged to the outside through the drain port 13 formed below the guide groove 12.

[0063] Ideally, the color-changing test paper BS is bright red in a dry state, and after being bleached in water, it can show a clear color difference, so that the liquid leakage position can be effectively observed.

[0064] More preferably, the water collector 10 is installed in a manner that the drain port 13 side is slightly inclined downward relative to the horizontal plane, so that the leaked liquid can effectively flow into the guide groove 12 and be discharged to the outside through the drain port 13.

[0065] In addition, although the guide groove 12 of the water collector 10 of the present invention is designed to be in the form of an annular shape, the present invention is not limited to this. The guide groove 12 can also be designed to be in the form of a strip groove located at the lower end of the water collector 10, which can effectively expand the area of ​​the boss portion 11 in the water collector 10, thereby being able to more effectively identify the liquid leakage location. <Leakage volume can be reproduced>

[0066] In addition, the liquid protection device 1 of the present invention is equipped with a drain valve 20 at the drain port 13 of the water collector 10. The drain valve 20 has the function of switching open and closed cyclically by being manually pressed once. It is in a closed state under normal circumstances, and the amount of liquid leakage into the water collector 10 can be easily counted.

[0067] After pressing the button at the bottom of the drain valve 20 , the plug opens downward to put the drain valve 20 in an open position, and the leaked liquid in the water collector 10 flows out from the drain port 13 at the bottom of the guide groove 12 and flows out through the water outlet of the drain valve body 20 .

[0068] like Figure 5 As shown, the drain valve 20 of the liquid protection device 1 of the present invention mainly includes a plugging portion 21 , a sliding portion 22 , a pressing portion 23 and a water outlet 24 .

[0069] The plugging portion 21 is connected to the drain port 13 of the water collector 10 and is used to open and close the drain port 13 .

[0070] The sliding portion 22 is used to transmit the force from the pressing portion 23 to the plugging portion 21, so as to control the closing of the plugging portion 21, and the water outlet 24 is used to discharge the leaked liquid from the water collector 10 to the outside.

[0071] Below, refer to Figures 6 to 9 , the specific structure of each component of the drain valve 20 of the liquid protection device 1 of the present invention is described.

[0072] like Figure 6 As shown, the plugging portion 21 of the drain valve 20 mainly includes an elastic member 211 as a coil spring and a flange member 212 with a circular upper surface.

[0073] The elastic member 211 is installed at the bottom of the plugging portion 21, and after being pre-tightened, the elastic member 211 lifts the flange member 212 through tension to press against the circular drain outlet 13, thereby achieving the sealing of the water collector 10. After receiving the force from the pressing portion 23, the elastic member 211 releases the pre-tightening state and puts down the flange member 212, thereby releasing the leaked liquid in the water collector 10.

[0074] like Figure 7 As shown, the sliding portion 22 of the drain valve 20 mainly includes a valve core 221, an inner sleeve 222, and an outer sleeve 223 sleeved on the outer side of the inner sleeve 222 in a relatively slidable manner.

[0075] In more detail, Figure 8 As shown, a plug is provided at the top end of the valve core 221 , through which the drainage port 13 of the water collector 10 can be sealed, and an inclined groove (“\” shape) inclined toward the lower right is formed on the outer periphery of the valve core 221 .

[0076] The inner sleeve 222 is sleeved on the outer side of the valve core 221 in a relatively slidable manner, and a reverse inclined groove (in the shape of a letter “ / ”) inclined toward the lower left is formed on the outer periphery of the inner sleeve 222 .

[0077] Similarly, the outer sleeve 223 is sleeved on the outer side of the inner sleeve 222 in a relatively slidable manner, and a transverse groove (in the shape of a letter “—”) extending transversely is formed on the outer periphery of the outer sleeve 223 .

[0078] exist Figure 6 In the assembly state shown, a sliding block 224 is inserted into the inclined groove of the valve core 221, the reverse inclined groove of the inner sleeve 222 and the transverse groove of the outer sleeve 223, and the relative sliding between the valve core 221, the inner sleeve 222 and the outer sleeve 223 is achieved by the movement of the sliding block 224 in the sliding groove.

[0079] During use, the bottom button is pressed to drive the sliding block 224 to move in the sliding groove, thereby realizing the relative sliding of the valve core 221 relative to the inner sleeve 222 and the outer sleeve 223, and then driving the plug to reciprocate between the open position and the closed position to realize the opening and closing of the drain outlet 13 of the water collector 10.

[0080] When the plug is in the closed position, the drain port 13 of the water collector 10 is closed, and the leakage amount of the liquid leaking into the water collector 10 can be effectively reproduced.

[0081] When the plug is in the open position, the drain port 13 of the water collector 10 is opened, and the leaked liquid accumulated in the water collector 10 flows into the drain valve 20 through the drain port 13 and is discharged to the outside through the water outlet 224 of the outer sleeve 223 of the sliding part 22 of the drain valve 20.

[0082] like Figure 8 As shown, the pressing portion 23 is formed into a roughly cylindrical shape, and a serrated docking portion evenly arranged along the circumferential direction is formed at the top end of the pressing portion 23. The serrated docking portion matches the shape of the mounting portion located in the outer sleeve 223 of the sliding portion 22, so that the pressing portion 23 can be easily installed.

[0083] Each time the pressing portion 23 is pressed, the force is transmitted to the elastic member 211 of the plugging portion 21 to release or realize the pre-tightened state of the elastic member 211, thereby opening or closing the plug, and after each pressing, the elastic force of the elastic member 211 will automatically reset the pressing portion 23 to its initial position. <Adjustable installation style>

[0084] like Fig. 10A and Fig. 10B As shown, the liquid protection device 1 of the present invention fixes the water collector 10 to the fuselage of the aircraft through the supporting mechanism 30 .

[0085] The supporting mechanism 30 mainly includes a vertical mounting member 31 , an inclined mounting member 32 and a rotating connecting member 33 .

[0086] The vertical mounting member 31 is installed vertically relative to the horizontal plane, one end of which is connected to a part of the water collector 10 via a rotating connector 32 in a manner that it can rotate 360 ​​degrees relative to the water collector 10, and the other end is fixedly connected to the aircraft fuselage.

[0087] The inclined mounting member 32 is installed at an angle relative to the horizontal plane, one end of which is connected to another part of the water collector 10 via a rotating connecting member 32 so as to be rotatable 360 ​​degrees relative to the water collector 10 , and the other end is fixedly connected to the vertical mounting member 31 .

[0088] The rotating connecting member 33 adopts a hinge structure and is respectively mounted on the vertical mounting member 31 and the inclined mounting member 32 and the water collector 10 by fixing bolts, so that relative rotation between the two can be achieved.

[0089] With such a structure, the water collector 10 can be fixedly installed on the aircraft by means of triangular support, and due to the characteristics of the rotating connection 33, the angle of the water collector 10 relative to the horizontal plane can be appropriately adjusted, thereby effectively adapting to the installation space limitations of different onboard equipment on the aircraft.

[0090] Specifically, you can use Fig. 10A The inclined mounting member 32 shown is located below the water collector 1. Fig. 10B The inclined mounting member 32 shown is a suspended mounting structure located above the water collector 1. The angle of the water collector 10 relative to the horizontal plane can be appropriately adjusted by rotating the connecting member 32 according to the installation environment of different airborne equipment, so as to adapt to different installation space restrictions on the aircraft.

[0091] In addition, it is ideal that a locking portion (not shown) can be provided on the vertical mounting member 31, and a locked portion (not shown) can be provided at the other end of the inclined mounting member 32 opposite to the rotating connecting member 32. By engaging the locking portion provided on the vertical mounting member 31 and the locked portion provided on the inclined mounting member 32 with each other, fixation between the two can be achieved, thereby achieving fixed installation of the water collector 10 relative to the aircraft fuselage.

[0092] In addition, the above-mentioned locking portions can be arranged in plurality on the vertical mounting member 31 along the vertical direction and spaced apart from each other. By locking the locking portions of the inclined mounting member 32 at different positions of the vertical mounting member 31, the water collector 10 can be adjusted to different installation angles, thereby being able to effectively adapt to different installation environment requirements.

[0093] Furthermore, the above-mentioned snap-fitting portion can also be continuously formed into a serrated form along the vertical direction on the vertical mounting member 31. By continuously arranging the snap-fitting portion on the vertical mounting member 31, the water collector 10 can be adjusted to any desired installation angle, thereby being able to effectively adapt to a variety of different installation environments. (Installation and use steps)

[0094] The following describes specific installation and use steps when the liquid protection device 1 of the present invention is applied to airborne equipment.

[0095] Step 1: Assemble the drain valve 20 by assembling the plugging part 21, the sliding part 22, the pressing part 23 and other components together;

[0096] Step 2: Install the assembled drain valve 20 at the drain port 13 at the bottom of the water collector 10 and fix it with fasteners such as screws;

[0097] Step 3: Install the liquid protection device 1 assembled with the drain valve 20 on the fuselage structure of the aircraft as a whole through bolts and other fasteners. Depending on the specific installation environment, a supporting or hanging installation method can be adopted, and the angle of the water collector 10 relative to the horizontal plane can be adjusted. (Technical Effect)

[0098] As described above, according to the liquid protection device 1 of the present invention, by arranging a color-changing test paper BS (dyed dry test paper with bleach) that changes color when exposed to water in the water collector 10, it is possible to effectively locate the leakage point at the dripping point above the waterproof device, thereby enabling the leakage point to be identified conveniently and quickly.

[0099] In addition, by providing a manually switchable drain valve 20 at the drain outlet 13 of the water collector 10, according to the principle of relative movement between the three slider grooves, it is possible to move the plug of the waterproof device between two positions with one button. When the drain valve 20 is closed, the amount of leaked liquid dripping into the water collector 10 can be effectively counted, so that the leakage amount can be easily reproduced.

[0100] In addition, by designing a rotating connector 33 that can achieve 360-degree rotation, the support and suspension structures of the water collector 10 can be adjusted for installation. By adjusting the installation angle of the plane in which the water collector 10 is located, it can effectively adapt to the installation space limitations of different airborne equipment.

[0101] Although the structure and working principle of the present invention are described above in combination with the preferred embodiments, those skilled in the art should recognize that the above examples are only for illustration and do not constitute a limitation of the present invention. The present invention can be modified and varied within the spirit of the claims, and these modifications and variations will fall within the protection scope of the present invention.

Claims

1. A liquid protection device (1), the liquid protection device (1) being arranged above an onboard device (2) with waterproofing requirements, characterized in that: The liquid protection device (1) comprises a water collector (10), flanges extending upward are arranged around the water collector (10), and a color-changing test paper (BS) capable of changing color when exposed to water is arranged in the water collector (10).

2. The liquid protection device (1) according to claim 1, characterized in that: A boss portion (11) protruding upward is provided at the middle position of the water collector (10), and a guide groove (12) for leaked liquid to flow is formed between the boss portion (11) and the flange.

3. The liquid protection device (1) according to claim 2, characterized in that: The color-changing test paper (BS) is laid on the boss portion (11) in a detachable manner.

4. The liquid protection device (1) according to claim 2, characterized in that: The guide groove (12) is located at the lower end of the water collector (10) and is formed in a strip shape.

5. The liquid protection device (1) according to claim 2, characterized in that: The water collector (10) is installed in a manner inclined relative to the horizontal plane. A drainage port (13) is formed at a position of the guide groove (12) that is located at the lowest position relative to the horizontal plane.

6. The liquid protection device (1) according to claim 5, characterized in that: A drain valve (20) is installed at the drain port (13) of the water collector (10). The drain valve (20) can be switched between an open and closed state by manually pressing.

7. The liquid protection device (1) according to claim 6, characterized in that The drain valve comprises a plugging portion (21), a sliding portion (22) and a pressing portion (23). The sealing and releasing of the plugging part (21) is achieved by manually pressing the pressing part (23) to drive the sliding block (224) to slide in the sliding part (22).

8. The liquid protection device (1) according to claim 1, characterized in that: The liquid protection device (1) is fixed to the aircraft fuselage through a supporting mechanism (30) in a supporting and hanging installation structure.

9. The liquid protection device (1) according to claim 8, characterized in that The support mechanism (30) comprises a vertical mounting member (31), an inclined mounting member (32) and a rotating connecting member (33). The vertical mounting member (31) is mounted vertically relative to a horizontal plane, and the inclined mounting member (32) is mounted inclined relative to the horizontal plane. One end of the vertical mounting member (31) and the inclined mounting member (32) are respectively connected to different parts of the water collector (10) via the rotating connecting member (33) in a manner capable of rotating 360 degrees relative to the water collector (10), and the other ends are fixedly connected to each other.

10. The liquid protection device (1) according to claim 9, characterized in that The vertical mounting member (31) is provided with a clamping portion, and the inclined mounting member (32) is provided with a clamped portion. The fixed connection between the vertical mounting member (31) and the inclined mounting member (32) is achieved through the engaging portion and the engaged portion.

11. The liquid protection device (1) according to claim 10, characterized in that A plurality of the engaging portions are arranged on the vertical mounting member (31) at intervals from each other.

12. The liquid protection device (1) according to claim 10, characterized in that The engaging portion is continuously arranged on the vertical mounting member (31).

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