Horizontal measuring tool and using method thereof

Abstract

The invention belongs to the technical field of air cushion landing boats, and discloses a horizontal measuring tool and a using method thereof.The horizontal measuring tool comprises a fixing plate, a measuring assembly, two observation assemblies and a suction cup assembly, the number of the observation assemblies is two, and the measuring assembly is provided with scales and located between the two observation assemblies; the observation assemblies and the measurement assembly are arranged on the same side of the fixing plate, the other side of the fixing plate is detachably connected to the suction cup assembly, the suction cup assembly can be fixed to the cabin wall, the observation assemblies are filled with liquid, and the different observation assemblies are communicated through hoses. The air cushion boat balance state testing device can avoid tedious operation, is simple and convenient to carry, does not generate position deviation in the testing process, can detect and analyze the balance state of an air cushion boat at different point positions, and is more accurate and quicker in detection data.

Description

Technical Field

[0001] The invention relates to the technical field of air cushion landing craft, and in particular to a level measuring tool and a use method thereof. Background Art

[0002] Air cushion landing craft can be used in coastal areas and beaches of the coastline to facilitate beach landing. It has high speed and good passability. The cushioning principle of the air cushion landing craft mainly relies on the pressure difference between the pressure inside the air cushion and the atmospheric pressure, so as to form lift at its bottom and support the hull to completely leave the water surface, thereby reducing water resistance and increasing speed. In the process design requirements of the air cushion landing craft, it is necessary to test the wind speed or other requirements when the air cushion craft is fully loaded or empty, and the protection and equipment are in good condition, so as to detect the cushioning effect of the air cushion craft on water and land respectively, and judge whether the balance state of the air cushion craft meets the requirements, so as to avoid the safety risk of excessive tilt of the air cushion craft during actual use.

[0003] At present, the commonly used detection method is to use a horizontal hose to detect the bow, middle and stern of the longitudinal wall of the hull, as well as the horizontal height deviation values ​​of the left and right reference points. However, during the entire test process, since the hovercraft is in a state of high-efficiency vibration, and the horizontal hose itself will be subjected to pulling force due to movement, the pressure inside it varies. There is even a problem that the internal liquid overflows during movement, or there is too little liquid to be easy to observe. Therefore, the horizontal hose needs to be continuously drained or refilled, which will extend the entire test time, and the accuracy of the measurement data is low. It is also not convenient to carry it for testing at any time.

[0004] Therefore, how to avoid cumbersome operations, make the detection tool simple and easy to carry, prevent position displacement during the test, and be able to detect and analyze the balance state of the hovercraft at different points, and detect data more accurately and quickly is a problem that people in this field need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a level measuring tool and a method for using the same, so as to avoid cumbersome operations, make the detection tool simple and easy to carry, and prevent position displacement during the test. The balance state of the hovercraft can be detected and analyzed at different points, and the detection data can be more accurate and faster.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Level measuring tool, including:

[0008] A fixed plate, a measuring component, an observation component and a suction cup component, wherein two groups of observation components are provided, the measuring component is provided with a scale and is located between the two observation components, and the observation component and the measuring component are provided on the same side of the fixed plate, the other side of the fixed plate is detachably connected to the suction cup component, the suction cup component can be fixed on the bulkhead, the observation component is filled with liquid, and different observation components are connected through hoses.

[0009] Optionally, a folding plate is provided on the fixing plate, and the suction cup assembly and the folding plate are hooked and connected.

[0010] Optionally, the measuring assembly includes a ruler with scales, a pressure plate and a clamping plate, wherein the pressure plate is arranged in the upper half of the fixed plate, and the clamping plate is arranged in the lower half of the fixed plate, and the ruler can be passed through the pressure plate and then limited in the clamping plate.

[0011] As an option, the pressing plate is fixed to the fixing plate by a first fastener, and the clamping plate is fixed to the fixing plate by a second fastener.

[0012] Optionally, the observation assembly includes an observation tube and a buckle, and the upper and lower ends of the observation tube are fixed to the fixing plate by the buckle.

[0013] As an option, the buckle is fixed to the fixing plate by a third fastener.

[0014] Optionally, the observation assembly further includes a rubber pad, which is located between the observation tube and the fixing plate.

[0015] Optionally, the suction cup assembly includes a suction cup, a fixed block, a hook, a handle and a motor, two of the fixed blocks are spaced apart on the suction cup, each of the fixed blocks is provided with the hook, and the two fixed blocks are connected by the handle, the motor is provided on the suction cup, and can vacuum the space between the suction cup and the bulkhead.

[0016] Optionally, a pressure gauge is further provided on the suction cup assembly. The pressure gauge is arranged on the suction cup and can monitor the pressure of the vacuum process.

[0017] On the other hand, a method for using a level measuring tool, using the level measuring tool, includes the following steps:

[0018] Determine the reference measurement point on the bulkhead and set the measurement point on the horizontal measurement tooling;

[0019] Install the suction cup assembly on the bulkhead and ensure that the reference measurement point corresponds to the measurement point one by one;

[0020] Hook and connect the fixing plate on which the observation component and the measuring component have been installed to the suction cup component;

[0021] Inject liquid into the observation components, and use hoses to connect different observation components;

[0022] Carry out a lift test on the air cushion landing craft, and after the test, observe and record the position of the liquid on the observation component through the measuring component to analyze the front and back and left and right changes of the air cushion landing craft;

[0023] Remove the fixing plate and suction cup assembly in turn.

[0024] Beneficial effects of the present invention:

[0025] In the present invention, the scale set on the measuring component can directly measure the change of the liquid in the observation component, and the observation components are connected by a hose, and the horizontal direction of the bulkhead can be monitored using the communicating vessel principle, and the direction and amplitude of the horizontal deviation of the hull can be obtained accordingly. Furthermore, the detachable connection between the fixing plate and the suction cup component can simplify the disassembly and assembly of the horizontal measurement tool, making it easy to carry, and the suction cup component can be adsorbed and fixed on the bulkhead, thereby ensuring the stable installation of the horizontal measurement tool on the bulkhead, and will not cause damage to the bulkhead during the disassembly and assembly process, and can improve the stability of the horizontal measurement tool during the test, not easy to deviate, and improve the accuracy of the measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a first isometric schematic diagram of the leveling tool according to an embodiment of the present invention;

[0027] Figure 2 is a second isometric schematic diagram of the leveling tool according to an embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of the horizontal measurement tooling according to an embodiment of the present invention being installed on a bulkhead;

[0029] Figure 4 is a front view schematic diagram of the level measurement tool according to an embodiment of the present invention;

[0030] Figure 5 is a side view schematic diagram of the level measurement tool according to an embodiment of the present invention;

[0031] Figure 6 is a schematic top view of the level measurement tool according to an embodiment of the present invention;

[0032] Figure 7 is a schematic structural diagram of a suction cup assembly in a level measurement tool according to an embodiment of the present invention;

[0033] Figure 8is a schematic structural diagram of a pressure plate in a level measurement tool according to an embodiment of the present invention;

[0034] Fig. 9 is a bottom view schematic diagram of a buckle in a level measurement tool according to an embodiment of the present invention;

[0035] Fig.10 It is a front view schematic diagram of the buckle in the level measurement tool described in the embodiment of the present invention.

[0036] In the figure:

[0037] 100-bulkhead; 10-fixing plate; 101-folding plate; 21-ruler; 22-pressing plate; 221-plate body; 222-first fastening hole; 23-clamping plate; 24-first fastener; 25-second fastener; 31-observation tube; 32-clip; 321-limiting groove; 322-third fastening hole; 33-third fastener; 34-rubber pad; 40-suction cup assembly; 41-suction cup; 42-fixing block; 43-hook; 44-handle; 45-motor; 50-hose. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] The technical solution of this embodiment is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0042] like Figure 1-Figure 10 As shown, this embodiment provides a horizontal measuring tool, including a fixed plate 10, a measuring component, an observation component and a suction cup component 40, two groups of observation components are provided, the measuring component is provided with a scale and is located between the two observation components, and the observation component and the measuring component are arranged on the same side of the fixed plate 10, and the other side of the fixed plate 10 is detachably connected to the suction cup component 40, the suction cup component 40 can be fixed on the bulkhead 100, the observation component is filled with liquid, and different observation components are connected through a hose 50.

[0043] On the other hand, the method for using the level measuring tool, using the level measuring tool, includes the following steps:

[0044] Determine the reference measurement point position on the bulkhead 100, and set the measurement point on the horizontal measurement tool;

[0045] Install the suction cup assembly 40 on the bulkhead 100 and ensure that the reference measurement point corresponds to the measurement point one by one;

[0046] Hook and connect the fixing plate 10 on which the observation assembly and the measuring assembly have been installed to the suction cup assembly 40;

[0047] Inject liquid into the observation components, and use hoses 50 to connect different observation components;

[0048] Carry out a lift test on the air cushion landing craft, and after the test, observe and record the position of the liquid on the observation component through the measuring component to analyze the front and back and left and right changes of the air cushion landing craft;

[0049] Remove the fixing plate 10 and the suction cup assembly 40 in sequence.

[0050] Specifically, in this embodiment, the scale set on the measuring component can directly measure the change of the liquid in the observation component, and the observation components are connected through the hose 50, and the horizontal direction of the bulkhead 100 can be monitored using the communicating vessel principle, and the direction and amplitude of the horizontal deviation of the hull can be obtained accordingly. Further, the detachable connection between the fixing plate 10 and the suction cup assembly 40 can simplify the disassembly and assembly of the horizontal measurement tool, making it easy to carry, and the suction cup assembly 40 can be adsorbed and fixed on the bulkhead 100, thereby ensuring the stable installation of the horizontal measurement tool on the bulkhead 100, and will not cause damage to the bulkhead 100 during the disassembly and assembly process, and can improve the stability of the horizontal measurement tool during the test, not easy to deviate, and improve the accuracy of the measurement data.

[0051] The specific structure of the level measurement tool in this embodiment is described below.

[0052] like Figure 1-Figure 3 As shown, the horizontal measuring tool in this embodiment includes a fixed plate 10, a measuring component, an observation component and a suction cup component 40, and the horizontal measuring tool is mainly installed on the bulkhead 100, so that the position change before and after the cushion lift test of the air cushion landing craft can be recorded in data and intuitively detected. Specifically, in this embodiment, two groups of observation components are provided, and the measuring component is located between the two observation components. At the same time, a scale is provided on the measuring component, so that the relevant data on the observation component can be read and recorded in real time through the measuring component. Further, the observation component and the measuring component are both provided on the same side of the fixed plate 10, and the other side of the fixed plate 10 is detachably connected to the suction cup component 40, and the suction cup component 40 can be fixed on the bulkhead 100 without causing damage to the bulkhead 100. Therefore, the horizontal measuring tool in this embodiment can achieve the purpose of quick disassembly and quick installation, as well as classified storage, which not only improves the installation efficiency, but also can effectively ensure that the position of the entire horizontal measuring tool will not be offset before and after the test on the bulkhead 100 under the action of the suction cup component 40, so as to improve the accuracy of the measurement data. For example, in this embodiment, the observation components are filled with liquid, usually water, and different observation components are connected through hoses 50, so as to obtain the front-to-back and left-to-right changes of the air cushion landing craft after the cushion lift test by using the communicating vessel principle. Specifically, the fixed position of the level measurement tool on the bulkhead 100 and the number of points can be set as needed.

[0053] Combination Figure 1-Figure 5 As shown, in the present embodiment, a folding plate 101 is provided on the fixed plate 10, and the suction cup assembly 40 and the folding plate 101 are hooked and connected, so as to realize a detachable connection between the two. In other embodiments, other detachable connection methods can also be selected, which will not be described here. Specifically, in the present embodiment, two folding plates 101 are provided, and the folding plates 101 are bent and extended downward after being fixed on the fixed plate 10, so as to facilitate the connection of the suction cup assembly 40. Correspondingly, in the present embodiment, the folding plates 101 and the suction cup assemblies 40 are arranged in a one-to-one correspondence, so that two groups of suction cup assemblies 40 are also provided, so that each fixed plate 10 can be fixed on the bulkhead 100 through the connection between the suction cup assembly 40 and the folding plate 101, and the two suction cup assemblies 40 are arranged up and down, which can effectively ensure the stability of the fixed plate 10 after installation. Exemplarily, in this embodiment, the size of the fixed plate 10 is set to 3*160*1200mm, or to 3*150*1200mm, the size of the folding plate 101 is 3*5mm, and both the fixed plate 10 and the folding plate 101 are made of aluminum plates.

[0054] like Figure 1 and Figure 4 , Figure 5As shown, the measuring assembly in this embodiment includes a ruler 21 with a scale, a pressing plate 22, a card plate 23, a first fastener 24 and a second fastener 25. Optionally, the pressing plate 22 is arranged in the upper half of the fixed plate 10, the card plate 23 is arranged in the lower half of the fixed plate 10, and the ruler 21 can be limited in the card plate 23 after passing through the pressing plate 22, so that the ruler 21 can be fixed on the fixed plate 10. Specifically, the pressing plate 22 is fixed on the fixed plate 10 by the first fastener 24, and the card plate 23 is fixed on the fixed plate 10 by the second fastener 25, thereby limiting the position of the ruler 21 to avoid its position from shifting during the test. Exemplarily, the ruler 21 is made of stainless steel, and its length is set to 1m and its width is 30mm. Further, the card plate 23 is made of aluminum plate, and the size is set to 3*50*20mm.

[0055] like Figure 8 As shown, in this embodiment, the pressing plate 22 includes a plate body 221, and a first fastening hole 222 is provided on the plate body 221, and a first hole is correspondingly provided on the fixing plate 10, so that the first fastener 24 can fix the plate body 221 on the fixing plate 10 after passing through the first fastening hole 222 and the first hole in sequence. Exemplarily, there are two first fastening holes 222, and there are two first holes, and the first fastener 24 is set as a bolt, and after the bolt passes through the first fastening hole 222 and the first hole, the position can be locked by the first nut. Similarly, the card plate 23 is also provided with a second fastening hole, and the fixing plate 10 is correspondingly provided with a second hole, and the second fastener 25 is also set as a bolt, and after the bolt passes through the second fastening hole and the second hole, the position can be locked by the second nut, so as to limit the ruler 21 and prevent it from falling off in the card plate 23. Exemplarily, there is one second fastening hole, and it is located in the middle position of the card plate 23, and correspondingly, there is also one second hole. Further, the clamping plate 23 can also be pre-fixed on the fixing plate 10 by spot welding and then locked by the second fastener 25. For example, spot welding can be performed on the left and right sides and the bottom of the clamping plate 23. For example, the bolts of the first fastener 24 are made of stainless steel and have a specification of 5 mm.

[0056] Combination Figure 1 and Figure 4-Figure 5As shown, the observation assembly in this embodiment includes an observation tube 31, a buckle 32, a third fastener 33 and a rubber pad 34. Optionally, the upper and lower ends of the observation tube 31 in this embodiment are fixed on the fixed plate 10 by the buckle 32 to ensure that the observation tube 31 does not move during the test. Specifically, the buckle 32 is fixed to the fixed plate 10 by the third fastener 33 to ensure the stable installation of the observation tube 31. Further, the rubber pad 34 is located between the observation tube 31 and the fixed plate 10 to provide a buffering effect between the observation tube 31 and the fixed plate 10 during the test to prevent the observation tube 31 from breaking. Exemplarily, the observation tube 31 and the ruler 21 are arranged in parallel and are both arranged in the vertical direction. Further, the observation tube 31 is made of glass or acrylic material to facilitate the observation of the internal liquid, and the length of the observation tube 31 is set to 1000mm and the diameter is 12mm. Furthermore, the thickness of the rubber pad 34 is set to 2 mm, and its size is set relative to the buckle 32 , and four rubber pads 34 are provided and installed corresponding to the positions of the buckles 32 .

[0057] like Fig. 9 and Fig.10 As shown, in this embodiment, a limiting groove 321 is provided on the buckle 32, and third fastening holes 322 are provided on both sides of the limiting groove 321, so that the observation tube 31 can be limited in the limiting groove 321, and the third fastener 33 can be passed through the third fastening hole 322, and then through the third hole on the fixing plate 10, and then locked by the third nut. Specifically, the third fastener 33 is also configured as a bolt. Specifically, the limiting groove 321 is configured as an arched groove, and its curvature matches the curvature of the outer wall of the observation tube 31, so as to ensure the stable installation of the observation tube 31. Exemplarily, the bolt of the third fastener 33 is made of stainless steel and has a specification of 5mm, the buckle 32 is made of plastic, and the inner diameter of the limiting groove 321 is 12mm, and the overall size of the buckle 32 is 30*25*50mm.

[0058] Combination Figure 5-Figure 7As shown, the suction cup assembly 40 in this embodiment includes a suction cup 41, a fixing block 42, a hook 43, a handle 44, a motor 45 and a pressure gauge. Optionally, the suction cup 41 can be fixed on the bulkhead 100, and two fixing blocks 42 and hooks 43 are provided. Specifically, two fixing blocks 42 are arranged on the suction cup 41 at intervals, and each fixing block 42 is provided with a hook 43, and the hook 43 can be hooked and connected to the folding plate 101, so as to realize the detachable connection between the fixed plate 10 and the suction cup assembly 40. Exemplarily, the hook 43 is set to a wavy structure, and its width is the same as the width of the fixing block 42, and its length is slightly smaller than the fixing block 42, so that when the hook 43 is hooked and connected to the folding plate 101, the contact area between the hook 43 and the folding plate 101 is increased, the stability is higher, and the wavy structure is easy to disassemble and assemble. Exemplarily, the radius of the suction cup 41 is set to 120mm, and it is an electric suction cup structure.

[0059] Furthermore, the two fixing blocks 42 are connected by a handle 44, and in this embodiment, the handle 44 is set as a rod structure, so that the operator can pre-install the suction cup assembly 40 on the bulkhead 100 through the handle 44. Optionally, the motor 45 and the pressure gauge are both set on the suction cup 41, and the motor 45 can perform vacuum treatment on the space between the suction cup 41 and the bulkhead 100, so as to ensure that the suction cup assembly 40 is only attached to the bulkhead 100, and ensure the stable installation of the entire level measurement tool on the bulkhead 100. Furthermore, the pressure gauge can monitor the pressure of the vacuum treatment, so as to observe the vacuum effect in real time and control the adsorption effect.

[0060] Combination Figure 1-Figure 3 As shown, in this embodiment, the horizontal measuring tool can be installed on the left bulkhead 100 and the right bulkhead 100 respectively, and the observation tubes 31 in different observation components are connected by a hose 50, and water is injected into the observation tubes 31. In this way, the principle of communicating vessels can be used to infer the front and rear, left and right tilt directions and angles of the air-cushion landing craft according to the changes in the water levels in the different observation tubes 31 after the cushion lift test.

[0061] The following is an explanation of the method of using the level measurement tool in this embodiment.

[0062] The method of using the level measuring tool, using the level measuring tool, includes the following steps:

[0063] Determine the reference measurement point position on the bulkhead 100, and set the measurement point on the horizontal measurement tool;

[0064] Install the suction cup assembly 40 on the bulkhead 100 and ensure that the reference measurement point corresponds to the measurement point one by one;

[0065] Hook and connect the fixing plate 10 on which the observation assembly and the measuring assembly have been installed to the suction cup assembly 40;

[0066] Inject liquid into the observation components, and use hoses 50 to connect different observation components;

[0067] Carry out a lift test on the air cushion landing craft, and after the test, observe and record the position of the liquid on the observation component through the measuring component to analyze the front and back and left and right changes of the air cushion landing craft;

[0068] Remove the fixing plate 10 and the suction cup assembly 40 in sequence.

[0069] Specifically, when installing the observation component and the measuring component on the fixed plate 10, it is first necessary to draw a center line in the length direction of the fixed plate 10, and draw the installation position line of the ruler 21 based on the center line, and then draw the installation position line of the clamping plate 23 at the center line position 120mm away from the lower port of the fixed plate 10, and draw the installation position line of the pressure plate 22 at the center line position 50mm away from the upper port of the fixed plate 10; secondly, based on the center line of the fixed plate 10, draw two position lines for the installation of the observation tube 31 on both sides at a distance of 50mm from the center line, and then draw the installation position line of the buckle 32 at a distance of 50mm from the lower port of the fixed plate 10, and draw the installation position line of the upper buckle 32 at a distance of 100mm from the upper port of the fixed plate 10; then, at the center position on the back side of the fixed plate 10, 150mm away from the upper port mm and the position 200mm away from the lower port are respectively marked with the installation position line of the folding plate 101; thus, the folding edge of the folding plate 101 is downward and welded to the fixed plate 10 according to the position of the installation line, and then the clamping plate 23 is installed on the fixed plate 10 by spot welding, and the spot welding positions are at one place on the left, right and lower port of the clamping plate 23, and then the pressing plate 22 is placed according to the installation line, and a bolt hole with a diameter of 5.5mm is drilled at the center of both sides 10mm away from the end, and it is fixed with the first fastener 24, and finally the buckle 32 is placed at the installation line, and a bolt hole with a diameter of 5.5mm is drilled. After completion, the observation tube 31 is inserted into the limiting groove 321, so that the lower port of the observation tube 31 protrudes 30mm from the lower end of the fixed plate 10, and then a rubber pad 34 is placed between the fixed plate 10 and the observation tube 31, and it is fixed with the third fastener 33. Furthermore, in the present embodiment, the suction cup assembly 40 is mainly used to drive the vacuum equipment to draw a vacuum to form a closed space by means of electricity, thereby achieving the effect of fixing the entire horizontal measurement tooling on the bulkhead 100 .

[0070] Furthermore, when in use, the ruler 21 needs to be placed on the fixed plate 10 first, and its position is fixed using the pressure plate 22 and the first fastener 24, and the side of the ruler 21 with the scale is ensured to be placed outward, and then a horizontal line is drawn at 500 mm using the scale of the ruler 21, and extended to both sides of the fixed plate 10, so as to set the measuring point. Furthermore, a number of reference measuring points are set on the bulkhead 100 of the air-cushion landing craft. In the present embodiment, six are set, i.e., a horizontal measuring tool is placed on each point for measurement. Thus, after aligning the reference measuring points on the bulkhead 100 and the measuring points on the horizontal measuring tool, lines are drawn to determine the installation position of the suction cup assembly 40; then, the suction cup assembly 40 is preferentially adsorbed on the bulkhead 100, and then the fixing plate 10 is hooked on the suction cup assembly 40, and it is checked again whether the measuring points on the horizontal measuring tool are consistent with the reference measuring points on the bulkhead 100, and fine-tuning is performed to meet the measurement requirements, and then the horizontal measuring tool is installed on the other five points in sequence.

[0071] Next, after the level measuring tool is installed, the six clean hoses 50 are sequentially inserted into the observation tube 31 of the level measuring tool, and the hoses 50 are fastened to the observation tube 31 by using a pipe code or a clamp. Exemplarily, the connection mode of the observation tube 31 is front-middle connection, middle-rear connection, bow left-right connection, and stern left-right connection, so that one side of the tube is mainly used to test the left-right horizontal state, and the other side is used to test the front-back horizontal state. The specific connection mode can be adjusted as needed.

[0072] Finally, after installing the hose 50, water is injected into the observation tube 31 in sequence, and the liquid level in the tube is within the horizontal line range at the 500mm scale of the ruler 21. The accuracy of the horizontal reference points of the six measuring points is confirmed again in a static state. After confirmation, a pad lift test is performed. During the test, the actual data of the liquid level in the observation tube 31 can be intuitively read through the ruler 21. After the test is completed, the horizontal measurement tooling can be disassembled and assembled in sequence using a wrench, and the entire disassembly process will not cause damage to the bulkhead 100.

[0073] In summary, the level measurement tool in this embodiment will not cause the ruler 21 or the observation tube 31 to shift due to the shaking of the hull or other external factors during the test, and the one-to-one correspondence between the reference measurement point and the measurement point can effectively avoid data deviation, and the suction cup assembly 40 can be stably adsorbed on the bulkhead 100 compared to the test by hand in the prior art, ensuring data accuracy and measurement stability. For example, in this embodiment, the communicating vessel principle of the hose 50 is used, that is, when the liquid in the same container does not flow, the pages in the container should remain level, to detect the level of the hull. If the hull does not tilt at all, when this ideal state is reached, the liquid levels in the front, back, left, right or any two observation tubes 31 should remain level, and if the liquid levels of the two observation tubes 31 are initially aligned with the reference point, in this ideal state, the water levels in the two observation tubes 31 should still be aligned with the reference point; on the contrary, if a deviation occurs, the specific deviation direction and amplitude can be directly obtained based on the different high and low liquid levels and the distance from the reference point, so that the tilt angle of the hull can be effectively calculated, thereby greatly shortening the measurement time and improving the adjustable fault tolerance after the hull tilts too much.

[0074] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A level measuring tool, characterized in that: include: A fixing plate (10), a measuring component, an observation component and a suction cup component (40), wherein the observation component is provided in two groups, the measuring component is provided with a scale and is located between the two observation components, and the observation component and the measuring component are arranged on the same side of the fixing plate (10), the other side of the fixing plate (10) is detachably connected to the suction cup component (40), the suction cup component (40) can be fixed on the bulkhead (100), the observation component is filled with liquid, and different observation components are connected through a hose (50).

2. The level measuring tool according to claim 1, characterized in that: A folding plate (101) is provided on the fixing plate (10), and the suction cup assembly (40) and the folding plate (101) are hooked and connected.

3. The level measuring tool according to claim 1, characterized in that: The measuring assembly comprises a ruler (21) provided with a scale, a pressure plate (22) and a clamping plate (23); the pressure plate (22) is arranged in the upper half area of ​​the fixed plate (10); the clamping plate (23) is arranged in the lower half area of ​​the fixed plate (10); and the ruler (21) can be inserted through the pressure plate (22) and then limited in the clamping plate (23).

4. The level measuring tool according to claim 3, characterized in that: The pressing plate (22) is fixed to the fixing plate (10) via a first fastener (24), and the clamping plate (23) is fixed to the fixing plate (10) via a second fastener (25).

5. The level measuring tool according to claim 1, characterized in that: The observation assembly comprises an observation tube (31) and a buckle (32), and the upper and lower ends of the observation tube (31) are fixed on the fixing plate (10) by the buckle (32).

6. The level measuring tool according to claim 5, characterized in that: The buckle (32) is fixed to the fixing plate (10) via a third fastener (33).

7. The level measuring tool according to claim 5, characterized in that: The observation assembly further comprises a rubber pad (34), wherein the rubber pad (34) is located between the observation tube (31) and the fixing plate (10).

8. The level measuring tool according to claim 1, characterized in that: The suction cup assembly (40) comprises a suction cup (41), a fixing block (42), a hook (43), a handle (44) and a motor (45); two fixing blocks (42) are arranged on the suction cup (41) at intervals; each fixing block (42) is provided with the hook (43); and the two fixing blocks (42) are connected via the handle (44); the motor (45) is arranged on the suction cup (41) and is capable of performing a vacuum treatment on the space between the suction cup (41) and the bulkhead (100).

9. The level measuring tool according to claim 8, characterized in that: The suction cup assembly (40) is also provided with a pressure gauge, which is arranged on the suction cup (41) and can monitor the pressure of the vacuum treatment.

10. A method for using a level measuring tool, using the level measuring tool according to any one of claims 1 to 9, characterized in that: The following steps are involved: Determining reference measurement points on the bulkhead (100) and setting measurement points on a horizontal measurement tool; Installing the suction cup assembly (40) on the bulkhead (100) and ensuring that the reference measurement point corresponds to the measurement point one by one; The fixing plate (10) on which the observation component and the measurement component are installed is hooked and connected to the suction cup component (40); Injecting liquid into the observation components, and connecting different observation components using a hose (50); Carry out a lift test on the air cushion landing craft, and after the test, observe and record the position of the liquid on the observation component through the measuring component to analyze the front and back and left and right changes of the air cushion landing craft; Remove the fixing plate (10) and the suction cup assembly (40) in sequence.

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