High-strength lightweight underwater robot shell

Abstract

The utility model relates to a high-strength and light-weight underwater robot shell, and belongs to the field of underwater robots, the high-strength and light-weight underwater robot shell comprises a sealing shell, the sealing shell is cylindrical, hemispherical protection covers are arranged at the two ends of the sealing shell, the protection covers are used for protecting propellers, and the sealing shell and the peripheral sides of the protection covers are in smooth transition to form a sphere; the inner wall of the shell is covered with net-shaped reinforcing ribs. Cover plates are arranged at the two ends of the sealing shell, the cover plates are located between the sealing shell and the protective cover, annular flanges are coaxially arranged at the two ends of the sealing shell, and the two cover plates abut against the two annular flanges to form a sealing cavity; a reinforcing groove in the self-bending direction is formed in the side, away from the cover plate, of the annular flange and does not communicate with the side wall of the annular flange. The underwater robot shell has the effect that the weight of the shell is reduced while the strength of the underwater robot shell is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of underwater robots, and in particular to a high-strength and lightweight underwater robot shell. Background Art

[0002] Underwater robots are robots that can perform tasks in underwater environments. They are designed for use in the fields of marine science research, marine resource development, submarine oil and gas exploration, underwater archaeology, marine biology research, etc. With the continuous development of technology, the application prospects of underwater robots in the marine field are very broad and they play an important role in the marine field.

[0003] Underwater robots usually have waterproof shells, thrusters and power components. The power components provide power for underwater robots, and the propulsion components propel underwater robots to move underwater. Some underwater robots with special functions are also equipped with grippers, cameras and other modules to detect the surrounding environment, take images, grab specific objects, etc. The operator can remotely control the underwater robot to perform specific tasks.

[0004] Regarding the above-mentioned related technologies, since the density and pressure of water have high requirements on the strength of the robot frame, the traditional high-strength underwater robot shell is often too heavy, which is not conducive to the free movement of the underwater robot underwater. Utility Model Content

[0005] In order to ensure the strength of the underwater robot shell while reducing the weight of the shell, the present application provides a high-strength and lightweight underwater robot shell.

[0006] The high-strength and lightweight underwater robot shell provided in this application adopts the following technical solution:

[0007] A high-strength and lightweight underwater robot shell, comprising a shell body, the shell body comprising a sealing shell, the sealing shell is cylindrical, both ends of the sealing shell are provided with hemispherical protective covers, the protective covers are used to protect the thrusters, the sealing shell and the two protective covers are smoothly connected to form a sphere; the inner wall of the shell is covered with mesh reinforcement ribs; both ends of the sealing shell are provided with cover plates, the cover plates are located between the sealing shell and the protective covers, both ends of the sealing shell are coaxially provided with annular flanges, the two cover plates are respectively abutted against the two annular flanges to form a sealed cavity; the annular flange is provided with a reinforcement groove along its own bending direction on the side away from the cover plate, and the reinforcement groove is not connected to the side wall of the annular flange.

[0008] By adopting the above technical solution, the design of the reinforcement groove and the reinforcement ribs makes the shell have higher structural strength. The reinforcement groove can increase the anti-bending effect of the annular flange and reduce the possibility of its deformation, thereby improving the overall rigidity and tolerance of the shell. The reinforcement ribs further increase the strength of the shell, enabling it to withstand greater external pressure and impact, and can increase the stability of the shell. The design of the reinforcement groove enables the shell to reduce the amount of material used while maintaining sufficient strength, thereby reducing the weight of the shell. The honeycomb structure of the reinforcement ribs also effectively reduces the weight of the shell, making it more suitable for operation and movement in underwater environments.

[0009] Optionally, an annular sealing groove is provided on one side of the annular flange close to the cover plate, and the sealing groove is used to place a sealing ring. The corresponding cover plate and the annular flange squeeze the sealing ring to form a waterproof sealing structure.

[0010] By adopting the above technical solution, by placing the sealing ring in the sealing groove and squeezing it with the cover plate and the annular flange to form a sealed cavity, it can effectively prevent water from entering the interior of the robot, ensure the safe operation of the components and electrical systems inside the underwater robot, and ensure the sealing performance of the underwater robot.

[0011] Optionally, an annular groove is provided at a position of the annular flange close to the sealing shell, and the annular groove is located on a side of the annular flange close to the cover plate.

[0012] By adopting the above technical solution and providing the annular groove, the weight of the shell can be reduced without affecting the shell strength, thereby improving the overall lightweight effect of the underwater robot. The provision of the annular groove can make the annular flange easier to form, reduce the possibility of deformation and distortion, and ensure the strength and stability of the annular flange.

[0013] Optionally, the cover plate is provided with multiple double-headed screws, and multiple double-headed screws are provided with threads near both ends. The double-headed screws pass through two cover plates and two annular flanges. Nuts are provided near both ends of the double-headed screws. The double-headed screws and nuts cooperate to lock and fix the cover plate and the sealing shell.

[0014] By adopting the above technical solution, the first screw penetrates the cover plate and the annular flange to lock the cover plate and the annular flange together, thereby ensuring a tight connection between the cover plate and the sealing shell to prevent them from loosening or falling off. The design of the first screw enables the shell to have better structural integrity and stability.

[0015] Optionally, a supporting sleeve is commonly provided on one opposite side of the two annular flanges, and both ends of the supporting sleeve are respectively connected to the two annular flanges, and the supporting sleeve is used to support the cover plates on both sides.

[0016] By adopting the above technical solution, the support sleeve is located between the two annular flanges, and its function is to support and stabilize the cover plate to prevent it from deformation or bending. The setting of the support sleeve can improve the stability of the cover plate, so that the shell can withstand greater water pressure and impact force in an underwater environment.

[0017] Optionally, the side wall of the support sleeve is provided with a reinforcing rib, and the length direction of the reinforcing rib is arranged along the axial direction of the support sleeve.

[0018] By adopting the above technical solution, the reinforcing ribs are fixedly connected to the side wall of the support sleeve to increase the strength of the support sleeve. The arrangement of the reinforcing ribs enables the support sleeve to withstand greater pressure, prevents the cover plate from deforming and bending, and thus maintains the sealing of the sealing cavity.

[0019] Optionally, the reinforcing rib is provided with a clearance groove, which provides clearance for the wire harness inside the spherical shell; the reinforcing rib is provided with binding holes near both ends of the clearance groove, and the binding holes are used for binding cables.

[0020] By adopting the above technical solution, the clearance groove is located on the side of the reinforcing rib away from the shell, providing a routing channel for the cables. In the clearance groove inside the shell, the cables can be uniformly placed and fixed, avoiding messy cable wiring, ensuring the neatness and reliability of the cables. During the cable binding process, the binding holes can be used for fixing, further ensuring the stability of the cables.

[0021] Optionally, a reinforcement ring is provided on one side of the protection device close to the baffle, at least two of the double-headed screws are extended screws, two reinforcement rings are respectively passed through both ends of the extended screws, and the extended screws cooperate with nuts to lock and fix the protective cover and the sealing shell.

[0022] By adopting the above technical solution, the extended screw is used to connect the protective cover and the annular flange, and the protective cover is fixed by interlocking with the reinforcing ring and the sealing shell. Its function is to enhance the connection strength between the protective cover and the sealing shell, improve the structural stability of the entire shell, and ensure the tight assembly of the shell.

[0023] Optionally, a clearance hole is provided at the position of the nut on the surface of the cover plate corresponding to the reinforcement ring.

[0024] By adopting the above technical solution, the clearance hole can make the reinforcement ring avoid the nut abutting against the surface of the cover plate, so that the reinforcement ring and the cover plate can be closely abutted, thereby achieving a close connection between the protective cover and the sealing shell.

[0025] Optionally, a plurality of mounting sleeves are provided on the inner wall of the sealing shell, and a placement groove is provided on the mounting sleeve near the outer shell, the placement groove is connected to the interior of the mounting sleeve, and the placement groove is used to place a nut.

[0026] By adopting the above technical solution, the mounting sleeve is fixed to the inner wall of the sealing shell, and the nut is placed through the placement groove to install and fix different modules. Compared with directly opening a threaded hole on the shell, the setting of the mounting sleeve avoids the problem of wear on the thread due to multiple tightening, and improves the strength and practicality of the shell.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The ultra-thin wall thickness of the shell reduces the mass of the shell, and the addition of reinforcing ribs to form a honeycomb structure on the inner wall enhances the strength of the shell. This design can effectively reduce the weight of the shell, reduce the overall load of the underwater robot, and improve the robot's carrying capacity and operational flexibility;

[0029] 2. The design of the reinforcement groove and the ring groove makes the annular flange more resistant to bending, and is also conducive to the molding of the annular flange, reducing the possibility of deformation of the annular flange during the molding process, and further reducing the weight of the shell;

[0030] 3. The housing adopts the design of mounting sleeve and nut, which makes the assembly of the module inside the housing more convenient. The nut is placed in the mounting sleeve, and the module can be installed and fixed through threaded connection. This design method reduces the number of threaded holes in the housing itself, reduces the wear of the housing, and improves the installation strength of the module and the reliability of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of a high-strength and lightweight underwater robot shell according to an embodiment of the present application.

[0032] Figure 2 This is an exploded view of a high-strength and lightweight underwater robot shell according to an embodiment of the present application.

[0033] Figure 3 It is a schematic diagram of the structure of the protective cover of the embodiment of the present application.

[0034] Figure 4 It is a cross-sectional view of the sealing shell of the embodiment of the present application.

[0035] Figure 5 It is a structural schematic diagram of a high-strength and lightweight underwater robot shell with a protruding mounting sleeve in an embodiment of the present application.

[0036] Explanation of the accompanying drawings: 1. Shell body; 2. Sealing shell; 21. Reinforcing rib; 22. Mounting sleeve; 221. Placement groove; 3. Cover plate; 4. Annular flange; 41. Reinforcing groove; 42. Sealing groove; 43. Ring groove; 5. Support sleeve; 51. Reinforcing rib; 511. Make way groove; 512. Binding hole; 6. Protective cover; 61. Reinforcing ring; 62. Make way hole. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-5 This application is described in further detail.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; 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.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0040] The present application embodiment discloses a high-strength and lightweight underwater robot shell. Figure 1-3A high-strength and lightweight underwater robot shell includes a shell body 1, the shell body 1 includes a sealing shell 2 and two protective covers 6, the sealing shell 2 is cylindrical, the side wall of the sealing shell 2 is arc-shaped, and the protective cover 6 is hemispherical and is located outside the propeller to protect the propeller. The planes of the two protective covers 6 are arranged oppositely and are respectively located at the two ends of the sealing shell 2, and the smooth connection between the sealing shell 2 and the protective cover 6 forms a sphere. The shell body 1 is 3D printed with a photocurable resin material, and the shell printed with the material has the characteristics of high strength, high temperature resistance, and waterproofness. The inner wall of the shell body 1 is covered with a mesh reinforcement rib 21 to form a honeycomb structure. The shell thickness is 2mm, and the reinforcement rib 21 is 3mm thick. The ultra-thin shell reduces the weight of the shell body 1, and the reinforcement rib 21 can strengthen the strength of the shell body 1. Cover plates 3 are arranged at both ends of the sealing shell 2, and the cover plate 3 is located between the sealing shell 2 and the protective cover 6. The cover plate 3 is made of acrylic plate, and the acrylic plate has the characteristics of light weight, high strength and good waterproofness. The sealing shell 2 is coaxially fixed with an annular flange 4 near both ends, and the opposite sides of the two cover plates 3 are respectively abutted against the opposite sides of the two annular flanges 4. When the cover plate 3 abuts against the annular flange 4, the side wall of the cover plate 3 away from the annular flange 4 is flush with the end of the sealing shell 2. An annular sealing groove 42 is coaxially provided on the side of the annular flange 4 close to the cover plate 3, and a sealing ring is placed in the sealing groove 42. The cover plate 3 and the adjacent annular flange 4 squeeze the sealing ring to form a sealing cavity. An annular groove 43 is provided at the position of the annular flange 4 close to the sealing shell 2, and the annular groove 43 is located on the side of the annular flange 4 close to the cover plate 3. The design of the annular groove 43 makes the shell body 1 lighter on the one hand, and is more conducive to the molding of the annular flange 4 on the other hand, reducing the possibility of deformation of the annular flange 4. A plurality of reinforcing grooves 41 along the bending direction of the annular flange 4 are provided on the side away from the cover plate 3. The reinforcing groove 41 is not connected to the side wall of the annular flange 4, and the reinforcing groove 41, the annular groove 43 and the sealing groove 42 are not connected. The groove walls of the reinforcing groove 41 have a smooth transition, and the groove walls of the reinforcing groove 41 gradually transition to the side walls of the annular flange 4 to avoid excessive thickness changes that cause stress concentration or local depressions that affect the appearance and structural strength of the product. The honeycomb design of the shell reduces the weight of the shell while ensuring the strength of the shell body 1. The design of the reinforcing groove 41 makes the annular flange 4 more anti-bending, is conducive to the molding of the annular flange 4, and has the effect of reducing weight.

[0041] Reference Figure 2-4, 12 support sleeves 5 are arranged in an array along the circumferential direction around the axis of the sealing shell 2 on the opposite side of the two annular flanges 4, the axis of the support sleeve 5 is parallel to the axis of the sealing shell 2, the two ends of the support sleeve 5 are respectively fixed to the two annular flanges 4, the support sleeve 5 is located between the two reinforcement grooves 41 of the same annular flange 4, the support sleeve 5 and the reinforcement groove 41 are arranged at intervals, and the support sleeve 5 can support the cover plates 3 on both sides. The cover plate 3 is provided with 12 double-headed screws (not shown in the figure), the double-headed screws correspond to the support sleeves 5 one by one, and the double-headed screws are provided with threads near the two ends. The double-headed screws are penetrated from one end of the sealing shell 2 to the other end along the axis direction of the sealing shell 2, and penetrate the cover plates 3 on both sides, the two annular flanges 4 and the support sleeves 5 at the same time. Nuts are threadedly connected near the two ends of the double-headed screws, and the side walls of the nuts abut against the surface of the cover plate 3 to lock the cover plate 3 and the annular flange 4, so as to achieve the purpose of fixing the cover plate 3. A reinforcing ring 61 is coaxially fixed to the side of the protective cover 6 close to the cover plate 3. A plurality of grooves are provided on the side of the reinforcing ring 61 away from the cover plate 3. The length direction of the grooves is arranged along the bending direction of the reinforcing ring 61. The arrangement of the grooves makes the reinforcing ring 61 stronger and reduces the possibility of deformation of the reinforcing ring 61. Among the 12 double-headed screws, there are 4 extended screws. The reinforcing rings 61 are passed through both ends of the 4 extended screws. The 4 extended screws are arranged in an array along the circumferential direction. At this time, the side walls of the corresponding two nuts are respectively abutted against the side of the reinforcing ring 61 away from each other, so as to achieve the locking of the reinforcing ring 61, the cover plate 3 and the annular flange 4, and achieve the purpose of fixing the protective cover 6. The reinforcing ring 61 is provided with clearance holes 62 at the positions corresponding to the 8 nuts, so as to achieve a close connection between the protective cover 6 and the sealing shell 2. When tightening the nuts, the support sleeve 5 can support the cover plates 3 on both sides to prevent the cover plates 3 from deforming and bending, and to prevent the cover plates 3 from deforming and separating from the sealing shell 2, thereby destroying the sealing of the sealing cavity.

[0042] Reference Figure 3 , each side wall of the support sleeve 5 is fixed with two reinforcing ribs 51, the length direction of the reinforcing rib 51 is arranged along the axial direction of the support sleeve 5, and the width direction of the reinforcing rib 51 is arranged along the radial direction of the sealing shell 2, and the two reinforcing ribs 51 are respectively located on the opposite sides of the support sleeve 5. The two ends of the reinforcing rib 51 are respectively fixed to the two annular flanges 4, the reinforcing rib 51 is connected to the inner wall of the sealing shell 2 on the side close to the sealing shell 2, and the reinforcing rib 51 is provided with a clearance groove 511 on the side away from the shell, and the clearance groove 511 provides clearance for the wire harness inside the shell. The reinforcing rib 51 is provided with binding holes 512 at the positions near the two ends of the clearance groove 511, and the binding holes 512 are used for binding cables. The cables in the shell body 1 are unified in the clearance groove 511 for routing, and the cables are wrapped with a cable tie, and two binding holes 512 are penetrated to achieve the fixing of the cables. The reinforcing rib 51 is used to enhance the strength of the support sleeve 5.

[0043] Reference Figure 5The inner wall of the sealing shell 2 is fixed with a plurality of mounting sleeves 22. The mounting sleeve 22 is provided with a placement groove 221 near the outer shell. The placement groove 221 is connected to the inside of the mounting sleeve 22. The placement groove 221 is used to place nuts. The nuts are placed in the placement groove 221 and matched with bolts to achieve the installation and fixation of various modules. The setting of the mounting sleeve 22 avoids the opening of threaded holes. Since the outer shell material is hard and brittle, if the threaded holes opened by the outer shell itself are locked with the bolts for many times, the threads will be severely worn and powder will fall off, which will reduce the strength and practicality of the outer shell body 1.

[0044] The implementation principle of a high-strength and lightweight underwater robot shell of the embodiment of the present application is: 3D printing is performed using a photocurable resin material, and the shell body 1 printed using the material has the characteristics of high strength, high temperature resistance, and waterproofness. At the same time, the price of the resin material is relatively low, which reduces the production cost of the underwater robot. The honeycomb design of the reinforcing rib 21 ensures the strength of the shell body 1 and reduces its own weight. At the same time, the design of the reinforcing groove 41 makes the anti-bending effect of the annular flange 4 better, which is conducive to the molding of the annular flange 4, and also plays a role in reducing weight. The opening of the sealing groove 42 and the annular groove 43 further reduces the weight of the shell body 1, the sealing ring ensures the sealing of the sealed cabin, and the design of the annular groove 43 makes the strength of the annular flange 4 higher, reduces the possibility of deformation of the annular flange 4, and makes the molding of the annular flange 4 easier. The way of fixing the cover plate 3 and the protective cover 6 by a double-headed screw makes the connection between the cover plate 3, the protective cover 6 and the sealing shell 2 tighter, and the assembly structure is simple and easy to operate. The provision of the mounting sleeve 22 avoids the need to open a threaded hole in the housing itself, reduces the wear of the housing, ensures the mounting strength of the module, and increases the reliability and practicality of the housing body 1 .

[0045] The embodiments of the present application have the effect of ensuring the strength of the shell of the underwater robot while reducing the weight of the shell.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-strength and lightweight underwater robot shell, characterized in that: The invention comprises a shell body (1), wherein the shell body (1) comprises a sealing shell (2), wherein the sealing shell (2) is cylindrical, and hemispherical protective covers (6) are arranged at both ends of the sealing shell (2), wherein the protective covers (6) are used to protect the thruster, and the sealing shell (2) and the two protective covers (6) are smoothly connected to form a sphere; the inner wall of the shell body (1) is covered with mesh reinforcing ribs (21); both ends of the sealing shell (2) are provided with cover plates (3), wherein the cover plates (3) are located between the sealing shell (2) and the protective covers (6); both ends of the sealing shell (2) are coaxially provided with annular flanges (4), wherein the two cover plates (3) are respectively abutted against the two annular flanges (4) to form a sealing cavity; and a reinforcing groove (41) is arranged along the bending direction of the annular flange (4) on the side away from the cover plate (3), wherein the reinforcing groove (41) is not connected with the side wall of the annular flange (4).

2. The high-strength and lightweight underwater robot shell according to claim 1, characterized in that: The annular flange (4) is provided with an annular sealing groove (42) on one side close to the cover plate (3), and the sealing groove (42) is used to place a sealing ring. The corresponding cover plate (3) and the annular flange (4) squeeze the sealing ring to form a waterproof sealing structure.

3. The high-strength and lightweight underwater robot shell according to claim 1, characterized in that: An annular groove (43) is provided at a position of the annular flange (4) close to the sealing shell (2), and the annular groove (43) is located on a side of the annular flange (4) close to the cover plate (3).

4. The high-strength and lightweight underwater robot shell according to claim 1, characterized in that: The cover plate (3) is provided with a plurality of double-headed screws, each of which is provided with threads near both ends. The double-headed screws penetrate two cover plates (3) and two annular flanges (4). Nuts are provided near both ends of the double-headed screws. The double-headed screws cooperate with the nuts to lock and fix the cover plate (3) and the sealing shell (2).

5. The high-strength and lightweight underwater robot shell according to claim 4, characterized in that: A supporting sleeve (5) is commonly provided on one opposite side of the two annular flanges (4), and both ends of the supporting sleeve (5) are respectively connected to the two annular flanges (4). The supporting sleeve (5) is used to support the cover plates (3) on both sides.

6. The high-strength and lightweight underwater robot shell according to claim 5, characterized in that: The side wall of the support sleeve (5) is provided with a reinforcing rib (51), and the length direction of the reinforcing rib (51) is arranged along the axial direction of the support sleeve (5).

7. The high-strength and lightweight underwater robot shell according to claim 6, characterized in that: The reinforcing rib (51) is provided with a clearance groove (511), and the clearance groove (511) provides clearance for the wire harness inside the shell body (1); the reinforcing rib (51) is provided with binding holes (512) at positions close to both ends of the clearance groove (511), and the binding holes (512) are used for binding cables.

8. The high-strength and lightweight underwater robot shell according to claim 4, characterized in that: A reinforcement ring (61) is provided on one side of the protective cover close to the baffle, at least two of the double-headed screws are extended screws, two reinforcement rings (61) are respectively passed through the two ends of the extended screws, and the extended screws cooperate with nuts to lock and fix the protective cover (6) and the sealing shell (2).

9. The high-strength and lightweight underwater robot shell according to claim 8, characterized in that: The reinforcing ring (61) is provided with a clearance hole (62) at a position corresponding to the nut on the surface of the cover plate (3).

10. The high-strength and lightweight underwater robot shell according to claim 1, characterized in that: The inner wall of the sealing shell (2) is provided with a plurality of mounting sleeves (22), and a placement groove (221) is provided on the mounting sleeve (22) near the outer shell, the placement groove (221) is connected to the inside of the mounting sleeve (22), and the placement groove (221) is used to place a nut.

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