An underwater propulsion force testing platform

Abstract

The application discloses an underwater propelling force testing platform, which comprises a water tank, a guide rail crossing an opening of the water tank, a mounting unit comprising a receiving cavity for mounting a to-be-tested member, and a testing unit for testing underwater propelling force of the to-be-tested member. The mounting unit is slidably mounted on the guide rail. The mounting member is provided with a first sliding groove and a first limiting plate. The first limiting plate can be inserted into the first sliding groove to abut against the to-be-tested member placed in the receiving cavity. The first limiting plate inserted into the first sliding groove abuts against the to-be-tested member mounted in the mounting member, so that displacement of the to-be-tested member during the testing process is avoided, and the measurement accuracy is improved. When the to-be-tested member needs to be replaced for measurement, the first limiting plate is pulled out of the first sliding groove, the limiting is released, the to-be-tested member is replaced, and the operator can operate conveniently and quickly.

Description

Technical Field

[0001] This application relates to the field of testing platforms, and in particular to an underwater propulsion testing platform. Background Technology

[0002] Robotics technology is an important indicator of a country's technological innovation and high-end manufacturing level. Mobile robots play a vital role in scenarios such as emergency rescue and disaster relief, and wilderness exploration and inspection. The underwater movement patterns of mobile robots are mostly derived from terrestrial gaits; for example, dogs can use a running-like gait to propel themselves and turn underwater. However, there is currently a lack of testing platforms for underwater propulsion of biomimetic robots.

[0003] In related technologies, underwater propulsion testing platforms often use threaded connections supplemented by locking washers, spring washers, or threadlockers to prevent loosening. With this connection method, when replacing the thruster under test, auxiliary tools such as wrenches and screwdrivers are required for disassembly and installation. The disassembly and installation process is cumbersome. Each time the thruster under test is replaced, the operator must carry and use multiple tools alternately, and the replacement process is time-consuming. Moreover, disassembly and replacement must be completed above the pool or inside the water tank, which is not only inconvenient for operators but also occupies the effective working time of the testing platform. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an underwater propulsion testing platform capable of portablely testing the propulsion force of a robot sliding underwater.

[0005] An underwater propulsion testing platform according to one embodiment of this application includes: a water tank with an opening; a frame unit with a guide rail spanning the opening; a mounting unit for mounting a test piece, the mounting unit being slidably mounted on the guide rail; the mounting unit includes a mounting member with a receiving cavity for placing the test piece; the mounting member has a first sliding groove, and the mounting unit further includes a first limiting plate that can be inserted into the first sliding groove to abut against the test piece placed in the receiving cavity; and a testing unit including a pressure sensor fixedly mounted on the guide rail for abutting against the mounting unit and testing the underwater propulsion force of the test piece.

[0006] According to one embodiment of this application, the mounting component includes a plug portion located on the periphery of the accommodating cavity, and a pin hole is formed on the plug portion. A limiting plate through hole corresponding to the pin hole is formed on the first limiting plate. The mounting unit includes a pin, and the plug end of the pin passes through the limiting plate through hole and connects to the pin hole.

[0007] According to one embodiment of this application, a second sliding groove is provided at the installation opening. The second sliding groove is farther away from the receiving cavity than the first sliding groove. The installation unit includes a second limiting plate, which is inserted into the second sliding groove and contacts the positioning end of the pin.

[0008] According to one embodiment of this application, the mounting unit includes a driving component for mounting and driving the test piece, the driving component being able to be placed in the receiving cavity; when the first limiting plate is inserted into the first sliding groove, the first limiting plate abuts against the driving component.

[0009] According to one embodiment of this application, the number of pressure sensors is two, and the two pressure sensors are respectively installed on both sides of the mounting unit.

[0010] According to one embodiment of this application, the test unit includes a fixing member that is slidably mounted on a guide rail, and a pressure sensor is fixedly connected to the fixing member, and the pressure sensor can slide on the guide rail via the fixing member.

[0011] According to one embodiment of this application, the frame unit includes a first bracket and a second bracket. The first bracket spans the water tank opening, a guide rail is mounted on the first bracket, and the frame unit is mounted on the water tank opening via the second bracket.

[0012] According to one embodiment of this application, the second bracket is provided with a plurality of limiting blocks. When the second bracket is installed at the opening of the water tank, the plurality of limiting blocks are used to contact the outer wall and / or inner wall of the water tank.

[0013] According to one embodiment of this application, the second bracket is provided with a clamping member and a fastener. The clamping member includes a movable end and a fixed end, which clamp the side wall of the water tank. The fastener is located between the side wall of the water tank and the movable end.

[0014] According to one embodiment of this application, the frame unit is provided with corner brackets, which are arranged in the frame unit; there are two second supports, which are respectively located on both sides of the first support, and the second supports are connected to the first support at an angle through corner brackets.

[0015] The underwater propulsion testing platform according to the embodiments of this application has at least the following beneficial effects: a first sliding groove is opened in the mounting component and a first limiting plate is correspondingly configured. The first limiting plate is inserted into the first sliding groove to hold the test piece installed in the mounting component, thereby avoiding displacement of the test piece during the test, which would lead to low measurement accuracy. At the same time, when it is necessary to replace the test piece for measurement, there is no need to use multiple auxiliary tools alternately for disassembly and installation. The first limiting plate can be pulled out from the first sliding groove to release the limiting and replace the test piece.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of an underwater propulsion testing platform according to one embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the installation unit, testing unit, and guide rail in an underwater propulsion testing platform according to one embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the structure of the mounting component in the underwater propulsion testing platform according to one embodiment of this application;

[0021] Figure 4 for Figure 3 Exploded view of the structure at the mounting point;

[0022] Figure 5 This is a schematic diagram of the structure of the test unit and guide rail in an underwater propulsion test platform according to one embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the sliding component in an underwater propulsion testing platform according to one embodiment of this application.

[0024] Figure label:

[0025] 100. Water tank; 110. Cavity; 120. Water tank opening;

[0026] 200. Frame unit; 210. First bracket; 220. Guide rail; 230. Second bracket; 231. Clamping component; 232. Movable end; 233. Fixed end; 234. Limiting block; 235. Fastener; 240. Angle bracket;

[0027] 300. Mounting unit; 310. Sliding component; 311. Mounting groove; 312. First connecting hole; 313. Measuring part; 314. Slider; 315. Fourth connecting hole; 316. Third connecting hole; 320. Mounting component; 321. Mounting opening; 322. Receiving cavity; 323. Insertion part; 324. Pin hole; 325. First sliding groove; 326. Second sliding groove; 327. Sliding beam; 328. Second connecting hole; 329. Wire hole; 330. Driving component; 340. First limiting plate; 341. Limiting plate through hole; 350. Second limiting plate; 360. Pin;

[0028] 400 Test unit; 410 Pressure sensor; 411 Pressure measuring surface; 420 Fixing component; 421 Stop hole. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0033] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Robotics technology is an important indicator of a country's technological innovation and high-end manufacturing level. Mobile robots play a vital role in scenarios such as emergency rescue and disaster relief, and wilderness exploration and inspection. The underwater movement patterns of mobile robots are mostly derived from terrestrial gaits; for example, dogs can use a running-like gait to propel themselves and turn underwater. However, there is currently a lack of testing platforms for underwater propulsion of biomimetic robots.

[0035] In related technologies, underwater propulsion testing platforms often use threaded connections supplemented by locking washers, spring washers, or threadlockers to prevent loosening. With this connection method, when replacing the thruster under test, auxiliary tools such as wrenches and screwdrivers are required for disassembly and installation. The disassembly and installation process is cumbersome. Each time the thruster under test is replaced, the operator must carry and use multiple tools alternately, and the replacement process is time-consuming. Moreover, disassembly and replacement must be completed above the pool or inside the water tank, which is not only inconvenient for operators but also occupies the effective working time of the testing platform.

[0036] To address the aforementioned issues, this application provides an underwater propulsion testing platform that can portablely test the propulsion of a robot sliding underwater.

[0037] The following is for reference. Figures 1 to 6 This application describes an underwater propulsion testing platform according to an embodiment of the present application.

[0038] Please see Figure 1 The underwater propulsion testing platform includes a water tank 100, a frame unit 200, a mounting unit 300, and a testing unit 400. The water tank 100 includes a water tank opening 120. The frame unit 200 includes a guide rail 220 spanning the water tank opening 120. The mounting unit 300 is slidably mounted on the guide rail 220 for mounting the test piece. The mounting unit 300 includes a mounting component 320 with a receiving cavity 322 for placing the test piece. The mounting component 320 has a first sliding groove 325. The mounting unit 300 also includes a first limiting plate 340, which can be inserted into the first sliding groove 325 to hold the test piece placed in the receiving cavity 322. The testing unit 400 includes a pressure sensor 410, which is fixedly mounted on the guide rail 220 to hold the mounting unit 300 and test the underwater propulsion force of the test piece.

[0039] In other words, such as Figure 1 As shown, the underwater propulsion testing platform includes a water tank 100 with a water tank opening 120 at the top. The water tank opening 120 leads to a cavity 110 in the water tank 100. The cavity 110 is used to inject water to simulate an underwater environment for testing the device under test. It is understood that... Figure 1 The water tank 100 shown in the diagram omits the walls of the front and rear tanks 100 and the water in the cavity 110 to better illustrate the structure of the underwater propulsion testing platform. A frame unit 200 is provided at the water tank opening 120, and a guide rail 220 is provided in the frame unit 200. The guide rail 220 spans the water tank opening 120, and an installation unit 300 and a testing unit 400 are slidably mounted on the guide rail 220. The installation unit 300 is used to install the test piece, and the testing unit 400 is used to measure the underwater propulsion force of the test piece.

[0040] Please see Figure 2 , Figure 2 This is an enlarged view of the mounting unit 300 slidingly mounted on the guide rail 220. Specifically, the frame unit 200 includes a first bracket 210 and a guide rail 220. The first bracket 210 is a long straight rod, and the guide rail 220 is correspondingly set as a long straight rod and mounted on top of the first bracket 210. The mounting unit 300 and the test unit 400 are slidably mounted on the guide rail 220. The mounting unit 300 includes a slider 310 and a mounting component 320. Please refer to the above for details. Figure 3 and Figure 6 As shown, the sliding member 310 has an installation space extending through the front and rear of its bottom. The installation space is used to install the mounting member 320 and slide it on the guide rail 220. The sliding member 310 has a horizontally arranged mounting groove 311 in this installation space. The mounting member 320 has a horizontally arranged sliding beam 327. The sliding beam 327 slides into the mounting groove 311 to complete the assembly of the mounting member 320 and the sliding member 310. The sliding member 310 also has several first connecting holes 312 on its side. The mounting member 320 has several second connecting holes 328 corresponding to the first connecting holes 312 on its side. The first connecting holes 312 and the second connecting holes 328 are aligned. The mounting member 320 can be fixedly installed on the sliding member 310 by means of screw fastening or other methods.

[0041] like Figure 5 and Figure 6 As shown, the mounting unit 300 also includes a slider 314 corresponding to the guide rail 220. The slider 314 can slide along the guide rail 220. To achieve the connection between the slider 314 and the sliding member 310, the sliding member 310 is provided with a number of third connecting holes 316 on its top. The slider 314 is provided with a number of fourth connecting holes 315. The third connecting holes 316 and the fourth connecting holes 315 are aligned. The sliding member 310 can be fixedly installed on the slider 314 by means of screw fastening and can slide on the guide rail 220 with the slider 314.

[0042] like Figure 4As shown, the mounting component 320 has a receiving cavity 322 for placing the test piece and a mounting opening 321 leading to the receiving cavity 322. The test piece enters the receiving cavity 322 through the mounting opening 321 and is placed downwards. After placement, the test piece is held in place by the cavity wall of the receiving cavity 322, preventing it from moving horizontally but allowing it to move upwards vertically. To address this, the mounting component 320 has a horizontally positioned first sliding groove 325 and a first limiting plate 340 that can be inserted into the first sliding groove 325 at the mounting opening 321. The bottom of the first limiting plate 340 abuts against the test piece placed in the receiving cavity 322, preventing the test piece from moving vertically and ensuring the measurement accuracy of the test piece. When it is necessary to replace the test piece, there is no need to use auxiliary tools such as wrenches and screwdrivers for disassembly and installation. Simply pull the first limiting plate 340 out of the first slide groove 325, move the test piece up to the mounting opening 321 and remove it from the mounting opening 321, and finally place the required test piece into the receiving cavity 322 through the mounting opening 321 and use the first limiting plate 340 inserted into the first slide groove 325 to hold the test piece in place. This achieves a quick and convenient replacement effect, which is convenient for operators to replace and does not occupy the effective working time of the test platform.

[0043] like Figure 2 and Figure 5 As shown, the mounting unit 300 is slidably mounted on the guide rail 220. Test units 400 are provided at both ends of the sliding member 310 along the direction of the guide rail 220. Each test unit 400 includes a pressure sensor 410, which is fixedly mounted on the guide rail 220. Figure 2 , Figure 5 and Figure 6 As shown, two pressure sensors 410 are provided, located on opposite sides of the slider 310. The pressure measuring surface 411 of the pressure sensor 410 faces the slider 310. The slider 310 has two measuring parts 313, which are two end faces of the slider 310 along the guide rail 220. The measuring parts 313 are flat vertical surfaces. When the mounting unit 300 is installed in place, the pressure measuring surfaces 411 of the two pressure sensors 410 are exactly against the measuring parts 313 of the slider 310. When the test piece moves in the water tank 100, it exerts a reaction force on the mounting unit 300. The pressure sensor 410 measures the underwater propulsion force of the test piece by measuring the force on the measuring parts 313 of the slider 310.

[0044] In some embodiments, see Figure 4The mounting component 320 includes a plug-in portion 323, which is located on the periphery of the accommodating cavity 322. The plug-in portion 323 has a pin hole 324, and the first limiting plate 340 has a limiting plate through hole 341 corresponding to the pin hole 324. The mounting unit 300 includes a pin 360, and the plug end of the pin 360 passes through the limiting plate through hole 341 and connects to the pin hole 324. In other words, the accommodating cavity 322 of the mounting component 320 is provided with a pin hole 324 on its periphery and a corresponding pin 360 is configured thereon. The first limiting plate 340 is provided with a limiting plate through hole 341 corresponding to the pin hole 324. The insertion end of the pin 360 is inserted into the pin hole 324 through the limiting plate through hole 341 to fix the first limiting plate 340 in the first sliding groove 325, so that the first limiting plate 340 can better abut against the test piece and prevent the test piece from moving in the vertical direction of the accommodating cavity 322. It is worth noting that the pin 360 includes an insertion end and a positioning end away from the insertion end. The structural size of the positioning end of the pin 360 is larger than that of the insertion end of the pin 360, so that after the insertion hole of the pin 360 is inserted into the pin hole 324, the positioning end of the pin 360 can restrict the movement of the first limiting plate 340.

[0045] Furthermore, such as Figure 4 As shown, the mounting component 320 has a second sliding groove 326, which is further away from the receiving cavity 322 than the first sliding groove 325. The mounting unit 300 includes a second limiting plate 350, which is inserted into the second sliding groove 326 and contacts the positioning end of the pin 360. That is, as... Figure 4 As shown, the mounting component 320 is provided with a horizontally arranged second sliding groove 326 and a second limiting plate 350 that can be inserted into the second sliding groove 326 at the mounting opening 321. The position of the second sliding groove 326 is farther away from the receiving cavity 322 than the first sliding groove 325. When the first limiting plate 340 is inserted into the first sliding groove 325 and the pin 360 is inserted into the insertion part 323 and abuts against the first limiting plate 340, the second limiting plate 350 is inserted into the second sliding groove 326. The bottom of the second limiting plate 350 abuts against the positioning end of the pin 360 to prevent the pin 360 from moving in the vertical direction, further limiting the test piece in the receiving cavity, so that the test piece can be limited to move within the receiving cavity 322.

[0046] In some embodiments, see Figure 3 The mounting unit 300 includes a driving component 330 for mounting and driving the test piece. The driving component 330 can be placed in the receiving cavity 322. When the first limiting plate 340 is inserted into the first sliding groove 325, the first limiting plate 340 abuts against the driving component 330. That is, combined with Figure 3 and Figure 4The installation process of the test piece includes the following steps: The test piece is installed on the drive component 330; the drive component 330 is operated to enter through the installation opening 321 and be placed into the receiving cavity 322 of the mounting component 320; the first limiting plate 340 is operated to insert into the first sliding groove 325 so that the first limiting plate 340 abuts against the drive component 330; the insertion end of the pin 360 is operated to insert into the pin hole 324, and the positioning end of the pin 360 abuts against the first limiting plate 340; the second limiting plate 350 is operated to insert into the second sliding groove 326 so that the second limiting plate 350 abuts against the positioning end of the pin 360. The test piece is installed according to the above steps. In these steps, the operator does not need to use multiple auxiliary tools alternately to disassemble and install the test piece, which greatly simplifies the operator's replacement process while ensuring the measurement accuracy of the test piece. In this embodiment, the driving component 330 is a servo motor, and the mounting component 320 has a wire hole 329 on the cavity wall of the accommodating cavity 322 that leads to the outside. The wire hole 329 is used to connect an external power source to the servo motor to provide power to drive the device under test to move.

[0047] In some embodiments, such as Figure 2 As shown, the test unit 400 includes a fixing member 420, which is slidably mounted on the guide rail 220. A pressure sensor 410 is fixedly connected to the fixing member 420, and the pressure sensor 410 can slide on the guide rail 220 via the fixing member 420. In other words, the pressure sensor 410 in the test unit 400 is fixedly mounted on the guide rail 220 via the fixing member 420, and the pressure sensor 410 is threaded onto the fixing member 420. It can be understood that the pressure sensor 410 can also be fixedly mounted on the fixing member 420 by welding, riveting, snap-fitting, or strong adhesive bonding. The fixing member 420 is then slidably mounted on the guide rail 220, allowing the pressure sensor 410 to slide on the guide rail 220 via the fixing member 420 to adapt to the position of the sliding member 310 in the mounting unit 300. This ensures that the pressure measuring surface 411 of the pressure sensor 410 can align with and contact the measuring part 313 of the sliding member 310, guaranteeing the accuracy of the test piece measurement. The fixing member 420 is provided with a stop hole 421. The fixing member 420 can be fastened to the first bracket 210 of the guide rail through the stop hole 421. When the pressure sensor 410 moves to the appropriate position, the fixing member 420 is fastened to the first bracket 210 through the stop hole 421, so that the fixing member 420 is fixed to the first bracket 210, thereby fixing the pressure sensor 410. It is understood that the fixing member 420 can be connected to the first bracket 210 by a detachable fastening connection method such as a pin connection or a threaded connection. This is known to those skilled in the art, so it will not be described in detail here.

[0048] In some embodiments, such as Figure 1As shown, the frame unit 200 includes a first bracket 210 and a second bracket 230. The first bracket 210 spans the water tank opening 120, and a guide rail 220 is mounted on the first bracket 210. The frame unit 200 is mounted on the water tank opening 120 via the second bracket 230. The second bracket 230 is provided with a plurality of limiting blocks 234. When the second bracket 230 is mounted on the water tank opening 120, the plurality of limiting blocks 234 are used to contact the outer wall and / or inner wall of the water tank 100. The second bracket 230 is provided with a clamping member 231 and a fastener 235. The clamping member 231 includes a movable end 232 and a fixed end 233. The movable end 232 and the fixed end 233 clamp the side wall of the water tank 100, and the fastener 235 is located between the side wall of the water tank 100 and the movable end 232. The frame unit 200 is provided with corner brackets 240, which are arranged in the frame unit 200; there are two second supports 230, which are located on both sides of the first support 210 respectively, and the second supports 230 are connected to the first support 210 at an angle through the corner brackets 240.

[0049] In other words, such as Figure 1 As shown, the second bracket 230 is installed on the water tank opening 120 of the water tank 100 to support the frame unit 200. The first bracket 210 spans the water tank opening 120 and is used to install the guide rail 220. Both the first bracket 210 and the second bracket 230 are formed into rectangular frames. There is one first bracket 210 and two second brackets 230. The first bracket 210 and the second bracket 230 are connected at an angle. In this embodiment, the first bracket 210 and the second bracket 230 are connected at 90°. The two second brackets 230 and the first bracket 210 form an "I"-shaped structure. The frame unit 200 is provided with corner brackets 240. There are multiple corner brackets 240, which are fixed at the structural connection points of the first bracket 210 and the second bracket 230 to reinforce the frame unit 200. The second bracket 230 is provided with a plurality of limiting blocks 234. When the second bracket 230 is installed at the water tank opening 120, the plurality of limiting blocks 234 are used to contact the inner wall of the water tank 100 to limit the position of the second bracket 230 on the water tank opening 120. It can be understood that the limiting blocks 234 can also contact the outer wall of the water tank 100. The second bracket 230 is also provided with a clamping member 231 and a fastener 235. In this embodiment, the clamping member is specifically a G-clamp. The clamping member 231 includes a movable end 232 and a fixed end 233. The movable end 232 and the fixed end 233 clamp the side wall of the water tank 100. The fastener 235 is located between the side wall of the water tank 100 and the movable end 232. By operating the clamping member 231, the movable end 232 is moved toward the side wall of the water tank 100 until the fastener 235 is pressed. The fixed end 233 of the clamping member 231 and the fastener 235 further fix the second bracket 230 to the water tank opening 120.

[0050] In some embodiments, the frame unit 200 is made of aluminum alloy, and the water tank 100 is made of acrylic material; the fasteners 235, the sliders 310, the mounting parts 320, the first limiting plate 340, the second limiting plate 350, the pins 360, and the fixing parts 420 are all made of ABS material by 3D printing, wherein the fill ratio of the fasteners 235, the first limiting plate 340, the second limiting plate 350, and the pins 360 is 100%, the fill ratio of the fixing parts 420 is 50%, the fill ratio of the mounting parts 320 is 47%, and the fill ratio of the sliders 310 is 30%.

[0051] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. An underwater propulsion testing platform, characterized in that, include: Water tank, including the water tank opening; The frame unit includes a guide rail that spans across the opening of the water tank; The mounting unit is used to mount the test piece, and the mounting unit is slidably mounted on the guide rail; the mounting unit includes a mounting component, which has a receiving cavity for placing the test piece; the mounting component has a first sliding groove, and the mounting unit also includes a first limiting plate, which can be inserted into the first sliding groove to abut against the test piece placed in the receiving cavity; The test unit includes a pressure sensor, which is fixedly mounted on the guide rail to hold the mounting unit in place and test the underwater propulsion force of the test piece.

2. The underwater propulsion testing platform according to claim 1, characterized in that, The mounting component includes a plug-in portion located on the periphery of the accommodating cavity, and a pin hole is formed on the plug-in portion. A limiting plate through hole corresponding to the pin hole is formed on the first limiting plate. The mounting unit includes a pin, and the plug-in end of the pin passes through the limiting plate through hole and connects to the pin hole.

3. The underwater propulsion testing platform according to claim 2, characterized in that, The mounting component has a second sliding groove, which is farther away from the receiving cavity than the first sliding groove. The mounting unit includes a second limiting plate, which is inserted into the second sliding groove and contacts the positioning end of the pin.

4. The underwater propulsion testing platform according to claim 1, characterized in that, The mounting unit includes a driving component for mounting and driving the test piece, and the driving component can be placed in the receiving cavity; when the first limiting plate is inserted into the first sliding groove, the first limiting plate abuts against the driving component.

5. The underwater propulsion testing platform according to claim 1, characterized in that, The number of pressure sensors is two, and the two pressure sensors are respectively installed on both sides of the mounting unit.

6. The underwater propulsion testing platform according to claim 1, characterized in that, The test unit includes a fixing member that is slidably mounted on the guide rail. The pressure sensor is fixedly connected to the fixing member and can slide on the guide rail via the fixing member.

7. The underwater propulsion testing platform according to claim 1, characterized in that, The frame unit includes a first bracket and a second bracket. The first bracket spans the water tank opening, the guide rail is mounted on the first bracket, and the frame unit is mounted to the water tank opening via the second bracket.

8. The underwater propulsion testing platform according to claim 7, characterized in that, The second bracket is provided with a plurality of limiting blocks. When the second bracket is installed at the opening of the water tank, the plurality of limiting blocks are used to contact the outer wall and / or inner wall of the water tank.

9. The underwater propulsion testing platform according to claim 7, characterized in that, The second bracket is provided with a clamping member and a fastener. The clamping member includes a movable end and a fixed end, which clamp the side wall of the water tank. The fastener is located between the side wall of the water tank and the movable end.

10. The underwater propulsion testing platform according to claim 7, characterized in that, The frame unit is provided with corner brackets, which are arranged in the frame unit; there are two second supports, which are located on both sides of the first support, and the second supports are connected to the first support at an angle through the corner brackets.

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