Suspended wave pushing plate

Abstract

The utility model discloses a suspension type wave pushing plate capable of automatically changing length in operation, which comprises a shaft rod and a wave pushing plate, and the wave pushing plate comprises an outer plate, an inner plate and a plurality of wave pushing plates, the inner plate is telescopically arranged on the outer plate, rolling wheels are arranged at the bottom of the inner plate, and the rolling wheels are used for being connected to an underwater track; the two ends of the elastic piece elastically abut against the outer plate and the inner plate respectively; along with the rotation of the wave pushing plate, the elastic piece, the track and the idler wheel jointly act on the inner plate, so that the inner plate stretches out and draws back to keep the maximum water pushing depth. Due to the action of gravity, the suspended push plate can reduce the power consumed by wave pushing to a certain extent. The suspension type wave pushing plate with the plate length automatically changing in the running process automatically stretches and retracts in the wave pushing process, the wave pushing plate keeps the maximum water entry depth all the time, the pushed wave has the larger wave height and water depth ratio, the wave pushing efficiency is improved, and the large relative wave height can be generated.

Description

Technical Field

[0001] The utility model belongs to the research field of the production of port and offshore engineering experimental facilities, and particularly relates to a suspended wave-pushing plate. Background Art

[0002] Wave generation in a water tank is a comprehensive science and technology. A wave generator is an essential experimental device for physical model tests. The wave-pushing plate in the wave generator is placed in water and controls reciprocating motion to generate waves with required parameters. The production of the wave generator and the wave-pushing plate involves various disciplines such as wave theory, automatic control theory, mechanical principle, electronic technology, and sensor technology. Simulating a wave environment in a water tank is an experimental technique. In particular, it is difficult to generate shallow water waves with a large wave height to water depth ratio in a water tank. The suspended wave-pushing plate with automatic length extension and retraction and a larger water-pushing volume than the flat wave-pushing plate can partially solve the problem of generating shallow water waves with a large wave height to water depth ratio, improve the wave generation ability of the wave generator, and has important significance for ship navigation and berthing, water conservancy projects, and research on ocean and coastal engineering. Content of the Utility Model

[0003] The purpose of the utility model: In order to better simulate shallow water waves and improve the generation ability of waves with a large wave height to water depth ratio in a water tank, a suspended wave-pushing plate with automatic length extension and retraction during operation is proposed to improve the experimental means for studying shallow water waves and the interaction between waves and buildings.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A suspended wave-pushing plate with automatically variable length during operation, including a shaft rod and a wave-pushing plate, wherein the wave-pushing plate includes:

[0006] An outer plate, rotatably suspended on the shaft rod through a suspension rod system;

[0007] An inner plate, telescopically arranged in the outer plate, with rollers provided at the bottom of the inner plate, and the rollers are used to connect to a track at the bottom of the water tank;

[0008] An elastic member, with two ends elastically abutting against the outer plate and the inner plate respectively;

[0009] As the wave-pushing plate rotates, the elastic member, the track, and the rollers jointly act on the inner plate to make the inner plate expand and contract to maintain the maximum water-pushing depth.

[0010] Furthermore, a side sliding groove is opened at the bottom of the outer plate, and the inner plate is slidably arranged in the side sliding groove.

[0011] Furthermore, the elastic member includes:

[0012] A fixing plate, fixed in the side sliding groove;

[0013] A plurality of springs are respectively fixedly spaced on the fixed plate, and the other ends are fixed to the inner plate.

[0014] Furthermore, the wave-pushing plate further includes:

[0015] A positioning bolt is inserted through the top end of the outer plate, and its end extends into the side sliding groove and is connected to the fixed plate. The positioning bolt is used to adjust the position of the fixed plate.

[0016] Furthermore, the wave-pushing plate further includes:

[0017] An inner plate telescopic limiter is fixed to the inner wall of the side sliding groove and is located between the fixed plate and the inner plate to limit the inner plate.

[0018] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows: 1. It is equipped with an automatic telescopic mechanism composed of a spring device and bottom track rollers, and adopts a suspended swing structure design, so that the wave-pushing plate can always maintain the maximum water-pushing depth during the arc movement process, transfer more kinetic energy to the water body, better overcome the influence of the friction between the side wall and the bottom of the water tank on generating waves, and generate a larger wave height. 2. The high-fixed shaft hinged suspended wave-pushing plate makes full use of the restoring moment in the simple pendulum principle, which can reduce the thrust of the wave-pushing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of a suspended wave-pushing plate with an automatically changing length during operation.

[0020] Figure 2 It is a side view structural schematic diagram of a suspended wave-pushing plate with an automatically changing length during operation.

[0021] Figure 3 It is a comparison of the volume of water pushed by a suspended wave-pushing plate with an automatically changing length during operation and a traditional non-telescopic suspended wave-pushing plate. Among them, the water-pushing side area of the wave-pushing plate without a telescopic inner plate is AA’BB’, and the water-pushing side area of this suspended wave-pushing plate with an automatically changing length is BB’CC’.

[0022] Figure 4 It is a comparison of the side areas of water pushed by a suspended wave-pushing plate with an automatically changing length during operation and a traditional flat wave-pushing plate. Among them, the water-pushing side area of the flat wave-pushing plate is BB’DD’, and the water-pushing side area of this suspended wave-pushing plate with an automatically changing length is BB’CC’.

[0023] Reference numerals: 1 shaft rod, 2 suspension rod system, 3 positioning bolt, 4 elastic member, 5 inner plate, 6 outer plate, 7 roller, 8 side sliding groove, 9 shaft sleeve, 10 inner plate telescopic limiter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solution of the present utility model will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0025] As Figure 1 、 Figure 2 shown, the wave pushing plate is suspended by a suspension rod system 2 on a fixed horizontal shaft rod 1 above the water tank. The suspension rod system 2 is rotatably sleeved on the shaft rod 1 through a shaft sleeve 9. The wave pushing plate can perform a pendulum-like reciprocating motion along an arc trajectory in the water tank with the upper shaft rod 1 as the rotation axis to push the water body to generate waves.

[0026] The wave pushing plate includes an outer plate 6 and an inner plate 5. The outer plate 6 is rotatably suspended on the shaft rod 1 through the suspension rod system 2. A side sliding groove 8 is opened at the bottom of the outer plate 6. The inner plate 5 is movably arranged in the side sliding groove 8. A roller 7 is provided at the bottom of the inner plate 5. The roller 7 is connected to the track in the water tank. An elastic member 4 is provided in the side sliding groove 8.

[0027] In this embodiment, the elastic member 4 includes a fixing plate and a plurality of springs. The fixing plate is fixed in the side sliding groove. The plurality of springs are respectively and spacedly fixed to the fixing plate, and the other ends are fixed to the inner plate 5. Further, the wave pushing plate further includes a positioning bolt 3. The positioning bolt 3 penetrates through the top end of the outer plate 6, and its end extends into the side sliding groove 8 and is connected to the fixing plate. The positioning bolt 3 is used to adjust the position of the fixing plate. A fixing structure can be provided at the end of the positioning bolt 3 to drive the fixing plate to move and can rotate independently relative to the fixing plate.

[0028] The wave pushing plate further includes an inner plate telescopic limiter 10. The inner plate telescopic limiter 10 is fixed to the inner wall of the side sliding groove 8 and is located between the fixing plate and the inner plate 5 to limit the inner plate 5.

[0029] Please refer to Figure 3 、 Figure 4 , by using the elastic member 4 and the bottom roller 7, the inner plate 5 automatically expands and contracts up and down during the movement of the wave pushing plate, so that the bottom of the wave pushing plate always has the same maximum water entry depth. The problem of the change in the water entry depth of the wave pushing plate with a reciprocating motion along an arc trajectory is solved, and the generated waves have a larger wave height to water depth ratio.

[0030] Figure 3 For the comparison of the volume of water pushed by a suspended wave pushing plate with an automatically changing length during operation and a traditional non-telescopic suspended wave pushing plate, among them, the water-pushing side area of the non-telescopic inner plate is AA’BB’, and the water-pushing side area of this suspended wave pushing plate with an automatically changing length is BB’CC’.

[0031] Figure 4Comparison of the side area of water pushed by a suspended wave-pushing plate with automatically variable length during operation and a traditional flat wave-pushing plate. Among them, the water-pushing side area of the flat wave-pushing plate is BB’DD’, and the water-pushing side area of the suspended wave-pushing plate with automatically variable length is BB’CC’.

[0032] The wave-pushing plate is suspended on the horizontal shaft rod 1 above the water tank. The roller 7 at the lower end of the wave-pushing plate is always placed on the fixed track at the bottom of the water tank. As the wave-pushing plate makes an arc reciprocating motion around the upper horizontal axis, the inner plate is jointly affected by the elastic force of the internal elastic member 4 and the reaction force given by the underwater track to the roller 7. The elastic structure will correspondingly stretch and contract the inner plate 5 to keep the vertical projection area of the wave-pushing plate for water pushing unchanged.

[0033] Due to the action of gravity, the suspended wave-pushing plate can reduce the power consumed for wave pushing. The suspended wave-pushing plate with automatically variable length during operation can improve the operation efficiency of the wave maker.

[0034] In summary, the suspended wave-pushing plate with automatically variable length during operation has the characteristics of stable structure, simple installation, flexible use, and wide application range, and solves various problems in experimental research, such as the pursuit of generating extreme wave heights, the verification of coastal and ocean engineering designs, the efficiency test of wave energy utilization, the test of the wave resistance and wave breaking impact of equipment, the test of ship mooring stability conditions, and the verification and development of wave theories.

[0035] The above are only specific embodiments of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A suspended wave pusher, comprising a shaft and a wave pusher, characterized in that: The push wave plate comprises: An outer plate rotatably suspended on the shaft by a suspension rod system; An inner plate is telescopically arranged on the outer plate, and a roller is arranged at the bottom of the inner plate, and the roller is used to connect to the track at the bottom of the water tank; An elastic member, two ends of which elastically abut against the outer plate and the inner plate respectively; As the wave-pushing plate rotates, the elastic member, the track and the roller work together with the inner plate to cause the inner plate to expand and contract to maintain a maximum water-pushing depth.

2. The suspended push wave plate according to claim 1, characterized in that: The bottom of the outer plate is provided with a side sliding groove, and the inner plate is slidably arranged in the side sliding groove.

3. The suspended push wave plate according to claim 2, characterized in that: The elastic member comprises: A fixed plate, fixed in the side sliding groove; A plurality of springs are fixed to the fixing plate at intervals, and the other ends of the springs are fixed to the inner plate.

4. The suspended push wave plate according to claim 3, characterized in that: The push wave plate also includes: A positioning bolt is passed through the top of the outer plate, and its end extends into the side sliding groove and is connected to the fixing plate. The positioning bolt is used to adjust the position of the fixing plate.

5. The suspended push wave plate according to claim 3, characterized in that: The push wave plate also includes: The inner plate telescopic limiter is fixed to the inner wall of the side sliding groove and is located between the fixed plate and the inner plate to limit the inner plate.

6. The suspended push wave board according to claim 1, characterized in that: The suspension rod is rotatably sleeved on the shaft rod through a shaft sleeve.

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