Hovercraft protection device capable of reducing fluid friction through overlapping structure

Abstract

The invention discloses a hovercraft protection device capable of reducing fluid friction through an overlapping structure, which comprises a connecting layer, more than one protection assembly is connected to the connecting layer, and each protection assembly comprises more than one protection part for preventing foreign matter puncture. The more than one protection part is arranged along the length direction of the connecting layer at equal intervals in an array manner to form a protection part connecting group, the outer contour of each protection part is in a scale-like shape with the diameter and height of two ends gradually increased, the protection parts are detachably connected to the outer wall of the connecting layer, and a wear-resistant layer is arranged on the connecting layer; the multiple protection parts are arranged on the connecting layer, the flexible apron of the hovercraft is wrapped and covered with the fish scale-like protection parts, and the situation that the flexible apron is damaged and leaks air due to the fact that foreign matter collides with the flexible apron is avoided. A firmer protection layer can be formed through the multiple protection parts which are arranged in an overlapped mode, external attacks and damage are effectively resisted, and the protection effect on the connection layer is improved.

Description

Technical Field

[0001] The invention relates to the field of hovercraft protection, and in particular to a hovercraft protection device capable of reducing fluid friction through an overlapping structure. Background Art

[0002] ‌A hovercraft is a means of transportation that uses air cushion technology to achieve high-speed and terrain-independent navigation. High-pressure air is delivered to the bottom of the ship through a blower to form an air cushion, which lifts the hull and greatly reduces the resistance of navigation on the water surface, thereby achieving high-speed navigation. At the same time, the hovercraft can ignore the terrain and adapt to various complex environments, such as inland rapids, dangerous shoals, swamps, and ice surfaces. Hovercraft are mainly divided into full-cushioned hovercraft and sidewalled hovercraft. Full-cushioned hovercraft can sail completely out of the water and is amphibious; sidewalled hovercraft partially leaves the water, and the power required to maintain the air cushion pressure is relatively small, but it loses its amphibious capability. Because the use environment of the hovercraft is complex, foreign objects are prone to damage the flexible skirt at the bottom of the hovercraft during driving, affecting the navigation of the hovercraft.

[0003] In the prior art, a protective device is installed on the flexible apron to prevent it from being damaged by foreign objects. The common protective device can only provide rigid protection for the outer surface of the flexible apron to prevent the flexible apron from being damaged and leaking after being hit by foreign objects. It is foreseeable that a device can be provided to reduce the friction between the hovercraft and the moving medium, thereby reducing the energy consumption of the hovercraft during navigation. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a hovercraft protection device that reduces fluid friction through an overlapping structure, which can reduce the friction between the hovercraft and the contacting medium, thereby protecting the hovercraft and reducing the energy consumption of the hovercraft during navigation.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A hovercraft protection device for reducing fluid friction through an overlapping structure comprises a connecting layer, to which one or more protection components are connected, the protection components comprising one or more protection parts for preventing puncture by foreign objects, the one or more protection parts are arranged in an array with equal intervals along the length direction of the connecting layer to form a protection part connection group, the outer contour of the protection part is a fish scale shape with gradually increasing diameter and height at both ends, the protection part is detachably connected to the outer wall of the connecting layer, and a wear-resistant layer is arranged on the connecting layer.

[0006] As a preferred technical solution of the hovercraft protection device for reducing fluid friction through overlapping structures of the present invention, the protection part is a first protection part, and the first protection part is detachably connected to the connecting layer.

[0007] As a preferred technical solution of an air cushion craft protection device of the present invention that reduces fluid friction through an overlapping structure, the protection component also includes a first limiting portion, the first limiting portion is arranged on the connecting layer, the first protection portion is connected to the first connecting portion, the first connecting portion has a central hollow design, the first limiting portion has a central hollow design, the first connecting portion cooperates with the first limiting portion to form a cavity for firmly connecting the first protection portion, and a nylon thread is connected to the cavity.

[0008] As a preferred technical solution of an air cushion craft protection device for reducing fluid friction through an overlapping structure of the present invention, the protection part is a second protection part A, a second protection part B and a second protection part C, the tail ends of the second protection part A and the second protection part B are hollowed out, a plurality of second protection parts B are provided, the plurality of second protection parts B are plugged together, the second protection part A is plugged into the connected second protection part B, and the second protection part C is plugged into the connected second protection part B.

[0009] As a preferred technical solution of an air cushion craft protection device of the present invention that reduces fluid friction through an overlapping structure, connecting slides are provided on the inner walls of the top ends of the second protective part A and the second protective part B, and first connecting blocks are provided on the second protective part B and the second protective part C, and the first connecting blocks are slidably connected in the corresponding connecting slides.

[0010] As a preferred technical solution of the hovercraft protection device of the present invention for reducing fluid friction through overlapping structure, the inner walls of the top ends of the second protection part A and the second protection part B are both provided with fixing grooves for fixing the first connecting block.

[0011] As a preferred technical solution of the hovercraft protection device of the present invention for reducing fluid friction through an overlapping structure, the protection part is composed of a third protection part A, a third protection part B and a third connecting part B. The tail ends of the third protection part A and the third protection part B are hollowed out, a plurality of third protection parts B are provided, and the plurality of third protection parts B are plugged into each other, the third protection part A is plugged into the connected third protection part B, and the third connecting part B is plugged into the connected third protection part B.

[0012] As a preferred technical solution of the hovercraft protection device of the present invention for reducing fluid friction through an overlapping structure, the inner walls of the third protective part A and the third protective part B are both provided with connecting grooves, and the outer walls of the third protective part B and the third protective part C are both connected with second connecting blocks, and the second connecting blocks are plugged into the corresponding connecting grooves.

[0013] As a preferred technical solution of the hovercraft protection device of the present invention for reducing fluid friction through an overlapping structure, the protection component also includes a second limiting portion and a third limiting portion, the second limiting portion and the third limiting portion are respectively arranged at both ends of the connecting layer, and the second limiting portion and the third limiting portion are connected to the protection portion connection group.

[0014] As a preferred technical solution of an air cushion craft protection device of the present invention that reduces fluid friction through an overlapping structure, the second protection part A is connected to a second connecting part, the second connecting part is clamped with the second limiting part, the second protection part C is clamped with the third limiting part, the third protection part A is connected to a third connecting part A, the third connecting part A is clamped with the second limiting part, the third protection part C is connected to a third connecting part B, and the third connecting part B is clamped with the third limiting part.

[0015] Compared with the prior art, the present invention can achieve the following beneficial effects: 1. By arranging a plurality of protective parts on the connection layer, the flexible apron of the hovercraft is wrapped and covered with the protective parts imitating fish scales, so as to prevent foreign objects from hitting the flexible apron and causing it to be damaged and deflated.

[0016] 2. Multiple overlapping protective parts can form a more solid protective layer, which can effectively resist external attacks and damages. This arrangement minimizes the gaps between the protective parts and improves the protection effect of the connection layer.

[0017] 3. The overlapping arrangement of the protective parts can disperse the external pressure and reduce the wear of a single protective part. When external forces act on the protective parts, the overlapping parts can support each other. The overlapping protective parts help reduce water flow resistance and increase swimming speed.

[0018] 4. The partial overlap and streamlined arrangement of the guards allow water to flow more smoothly through the rigid side walls; the overlapping guards enhance the stability of the structure by interlocking and supporting each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a structural schematic diagram of the first protection part of the present invention; Figure 4 It is a structural schematic diagram of the first limiting part of the present invention; Figure 5 is a schematic structural diagram of a second embodiment of the present invention; Figure 6 Schematic diagram of the connection between the second protective part A and the connecting layer of the present invention; Figure 7 Schematic diagram of the structure of the second protection part A of the present invention; Figure 8 It is a cross-sectional schematic diagram of the connection between the second protection part A and the second protection part B of the present invention; Fig. 9 Schematic diagram of the connection between the second protection part B and the second protection part C of the present invention; Fig.10 Schematic diagram of the structure of the second protection part B of the present invention; Fig.11 Schematic diagram of the structure of the second protection part C of the present invention; Fig.12 is a schematic structural diagram of a third embodiment of the present invention; Fig.13 It is a schematic diagram of the structure of the limiting slideway and the connecting layer of the present invention; Fig.14 It is a structural schematic diagram of the third protection part A of the present invention; Fig.15 Schematic diagram of the structure of the third protection part B of the present invention; Fig.16 It is a structural schematic diagram of the connection section of the third protection part A and the third protection part B of the present invention; Fig.17 It is a schematic structural diagram of the third protection part C of the present invention.

[0020] Among them: connecting layer 1; wear-resistant layer 11; first limiting part 12; second limiting part 13; third limiting part 14; limiting slide 15; first protective part 2; first connecting part 21; second protective part A3; second connecting part 31; connecting slide 32; fixing groove 33; second protective part B34; first connecting block 35; second protective part C36; third protective part A4; third connecting part A41; connecting groove 42; third protective part B43; second connecting block 44; third protective part C45; third connecting part B46. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0022] Example 1 The present application includes a connecting layer 1 for connecting to the flexible apron arranged on the rigid side walls of the side wall type hovercraft, which is the same as the prior art. The connecting layer 1 is connected to the flexible apron by pasting. The central part of the connecting layer 1 is provided with Figure 1 and 2The wear-resistant layer 11 shown in FIG. 1 is connected to the rigid side wall when the connecting layer 1 is connected to the rigid side wall. Figure 1 As shown, the end surface where the rigid side wall contacts the surface of the flexible skirt is protected by a thickened wear-resistant layer 11 to reduce the damage to the flexible skirt caused by the water surface during the movement of the hovercraft. The connecting layer 1 is provided with a plurality of protective components for protecting the connecting layer 1 and reducing the friction between the connecting layer 1 and the water surface. The protective components are as follows: Figure 2 The first protective part 2 includes a fish scale-shaped first protective part 2, which is provided with a plurality of first protective parts 2 and arranged in an array with equal spacing based on the length direction of the connecting layer 1, so as to ensure that the plurality of first protective parts 2 can cover and protect the connecting layer 1. Figure 3 The structure is shown as a solid structure, and the diameter and height of the two ends of the first protection part 2 are different. The height of the end face with a smaller diameter of the first protection part 2 is smaller than the height of the end face with a larger diameter, so that the first protection part 2 is inclined. When the first protection part 2 is connected to the connecting layer 1, Figure 1 and Figure 2 As shown, the end of the first protective part 2 with a smaller diameter points to the bow of the hovercraft. During the travel of the hovercraft, the first protective part 2 uses its own covering of the connection layer 1 to block the damage of foreign objects to the flexible skirt, thereby ensuring the safety of the hovercraft during navigation. At the same time, the end of the first protective part 2 with a smaller diameter faces the bow, and uses its fish-scale-like structure and array-like arrangement to form a streamlined shape, which can reduce the friction between it and media such as water flow and air flow, thereby reducing the energy consumption of the hovercraft during navigation and improving the navigation efficiency of the hovercraft.

[0023] The first protective part 2 and the connecting layer 1 are detachably connected by a nylon rope, which can ensure the connection firmness between the first protective part 2 and the connecting layer 1 while facilitating the replacement of the damaged first protective part 2 by the staff. Figure 3 and 4 The first connecting part 21 shown is connected with the first limiting part 12, and the first connecting part 21 is connected to the outer wall of the first protective part 2. The central hollow design of the first connecting part 21 is convenient for the staff to insert the nylon rope into the first connecting part 21. The central hollow design of the first limiting part 12, the first limiting part 12 and the first connecting part 21 cooperate to form a cavity with the same outer contour as the first protective part 2, and a nylon rope is connected in the cavity to ensure the connection firmness between the first protective part 2 and the connecting layer 1.

[0024] Example 2 On the basis of Example 1, the protection component includes a second protection A3, the outer contour of the second protection part A3 is the same as the outer contour and the size of the first protection part 2, the tail end of the second protection part A3 is hollowed out, and multiple second protection parts B34 are plugged into the second protection part A3. The second protection part A3 and the second protection part B34 have the same contour and size, and the tail end of the second protection part B34 is also hollowed out. A second protection part C36 is plugged into the second protection part B34 located at the stern, and the second protection part B34 and the second protection part C36 have the same contour and size. The second protection part A3, multiple second protection parts B34 and the second protection part C36 are connected. The partially overlapping connection method forms a streamlined shape, which reduces the contact area between the protective component and the water flow and air flow. Compared with the method in which each first protective part 2 is placed independently in Example 1, the beneficial effects of this arrangement method are: it can form a more solid protective layer, effectively resist external attacks and damage, and this arrangement method minimizes the gaps between the protective parts, thereby improving the protective effect of the connection layer; the overlapping arrangement of the protective parts can disperse the external pressure and reduce the wear of a single protective part. When external forces act on the protective parts, the overlapping parts can support each other; the overlapping protective parts help reduce water flow resistance and increase swimming speed. The partial overlap and streamlined arrangement between the protective parts allow the water flow to flow through the rigid side wall more smoothly; the overlapping protective parts enhance the stability of the structure by interlocking and supporting each other.

[0025] The inner walls of the second protection part A3 and the second protection part B34 are provided with Figure 8 The connecting slideway 32 and the fixing groove 33 shown, the outer wall of the front end of the second protection part B34 is connected with a first connecting block 35. When the second protection part A3 is connected to the second protection part B34, the first connecting block 35 is slidably connected along the connecting slideway 32 connected to the second protection part A3, and finally fixed in the fixing groove 33 set on the inner wall of the second protection part A3. During the movement of the hull, the water flow and the air flow impact the outer wall of the second protection part B34, so that the second protection part B34 rotates in the opposite direction of the impact, and the first connecting block 35 rotates upward. The rotating first connecting block 35 is engaged with the fixing groove 33, thereby improving the connection firmness between the second protection part A3 and the second protection part B34. The connecting slideway 32 is used to further improve the connection firmness between the protection parts. The connecting slideway 32 is used to limit the connected first connecting block 35 so that it can only move along the axial direction of the connecting slideway 32, thereby improving the connection firmness between multiple protection parts, avoiding the movement of the protection parts in the radial direction after the water flow impacts the protection parts, and dispersing the entire protection part connection group. The connection method between the plurality of second protection parts B34 is the same as the connection method between the second protection part A3 and the second protection part B34. Fig.11As shown, its outer contour and size are the same as those of the second guard part A3 and it is solidly arranged to support and limit the entire guard part connection group.

[0026] The second protective part A3 is connected to a second connecting part 31, and the connecting layer 1 is connected to a second limiting part 13 matching the second connecting part 31. The second connecting part 31 is clamped with the second limiting part 13, and the tail of the second protective part C36 is abutted with the third limiting part 14 arranged on the connecting layer 1. The second limiting part 13 and the third limiting part 14 cooperate to improve the connection firmness between the multiple protective parts to prevent them from being separated after being hit by water or air flow.

[0027] Example 3 On the basis of Example 2, the protection component includes a third protection part A4, a third protection part B43 and a third protection part C45, and the third protection part B43 is provided with multiple, and multiple third protection parts B43 are plugged in, the third protection part A4 is plugged in with one of the third protection parts B43, and the third protection part C45 is plugged in with one of the third protection parts B43. The contour and size of the third protection part A4 and the second protection part A3 are equal, and the tail ends of the third protection part A4 and the third protection part B43 are hollowed out and as shown Fig.16 The third protection part A4 and the third protection part B43 are both provided with a connecting groove 42 on their inner walls. Fig.15 and 17 As shown, a second connection block 44 is provided, which is provided at the front end of the third protection part B43 or the third protection part C45 and plugged into the corresponding connection groove 42. The third protection part A4 and the third protection part B43 are connected through the connection groove 42 and the second connection block 44, and multiple third protection parts B43 or the third protection part B43 and the third protection part C45 are connected in the same way, so that the overlapping arrangement between multiple protection parts is achieved.

[0028] The third protection part A4 is provided with Fig.14 The third connecting portion A41 shown in the figure is engaged with the second limiting portion 13, and the third protection portion C45 is provided with a Fig.17 The third connection portion B46 shown in the figure is engaged with the third limiting portion 14, and the connection group of the overlapping connection portions is fixed on the connection layer 1 through the cooperation of the second limiting portion 13, the third limiting portion 14, the third connection portion A41 and the third connection portion B46. Furthermore, in order to ensure the connection firmness of the connection group and avoid the protection portion in the connection group from rotating and moving in the radial direction due to external force impact, the connection layer 1 is provided with the following Fig.13In the limiting slide 15 shown, the multiple protection parts are arranged in the limiting slide 15 and the two ends are in contact with the inner wall of the limiting slide 15. The limiting slide 15 is used to provide rigid support for the protection parts, thereby ensuring the connection firmness between the multiple protection parts.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hovercraft protective device for reducing fluid friction by means of an overlapping structure, comprising a connecting layer (1), characterized in that: The connection layer (1) is connected to one or more protective components, the protective components comprising one or more protective parts for preventing foreign matter from puncturing, the one or more protective parts being arranged in an array at equal intervals along the length direction of the connection layer (1) to form a protective part connection group, the outer contour of the protective part being a fish scale shape with gradually increasing diameter and height at both ends, the protective part being detachably connected to the outer wall of the connection layer (1), and the connection layer (1) being provided with a wear-resistant layer (11).

2. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 1, characterized in that: The protective part is a first protective part (2), and the first protective part (2) is detachably connected to the connecting layer (1).

3. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 2, characterized in that: The protective component further comprises a first limiting portion (12), the first limiting portion (12) being arranged on the connecting layer (1), the first protecting portion (2) being connected to the first connecting portion (21), the center of the first connecting portion (21) being hollowed out, the center of the first limiting portion (12) being hollowed out, the first connecting portion (21) and the first limiting portion (12) cooperating to form a cavity for firmly connecting the first protecting portion (2), the cavity being connected to a nylon thread.

4. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 2, characterized in that: The protective part comprises a second protective part A (3), a second protective part B (34) and a second protective part C (36). The tail ends of the second protective part A (3) and the second protective part B (34) are hollowed out. A plurality of second protective parts B (34) are provided. The plurality of second protective parts B (34) are plugged into each other. The second protective part A (3) is plugged into the connected second protective part B (34), and the second protective part C (36) is plugged into the connected second protective part B (34).

5. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 4, characterized in that: A connecting slideway (32) is provided on the inner wall of the top end of the second protection part A (3) and the second protection part B (34), and a first connecting block (35) is provided on the second protection part B (34) and the second protection part C (36), and the first connecting block (35) is slidably connected in the corresponding connecting slideway (32).

6. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 5, characterized in that: The inner walls of the top ends of the second protection part A (3) and the second protection part B (34) are both provided with fixing grooves (33) for fixing the first connection block (35).

7. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 1, characterized in that: The protective part comprises a third protective part A (4), a third protective part B (43) and a third connecting part B (46); the tail ends of the third protective part A (4) and the third protective part B (43) are hollowed out; a plurality of third protective parts B (43) are provided, and the plurality of third protective parts B (43) are plugged into each other; the third protective part A (4) is plugged into the connected third protective part B (43); and the third connecting part B (46) is plugged into the connected third protective part B (43).

8. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 7, characterized in that: The inner walls of the third protection part A (4) and the third protection part B (43) are both provided with connection grooves (42), and the outer walls of the third protection part B (43) and the third protection part C (45) are both connected with second connection blocks (44), and the second connection blocks (44) are plugged into the corresponding connection grooves (42).

9. The hovercraft protection device for reducing fluid friction by overlapping structures according to any one of claims 4 to 8, characterized in that: The protection component further comprises a second limiting portion (13) and a third limiting portion (14), the second limiting portion (13) and the third limiting portion (14) being respectively arranged at two ends of the connection layer (1), and the second limiting portion (13) and the third limiting portion (14) being connected to the protection portion connection group.

10. The hovercraft protection device for reducing fluid friction by overlapping structures according to claim 9, characterized in that: The second protection part A (3) is connected to a second connection part (31), the second connection part (31) is clamped with the second limiting part (13), the second protection part C (36) is clamped with the third limiting part (14), the third protection part A (41) is connected to the third protection part A (4), the third connection part A (41) is clamped with the second limiting part (13), the third protection part C (45) is connected to a third connection part B (46), the third connection part B (46) is clamped with the third limiting part (14).

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