Wave making ball and wave making training pool

Abstract

The wave making ball comprises a ball shell, an elastic air bag, an air supply pipe and a plurality of water inlet pipes, a containing cavity used for containing the elastic air bag to expand is formed in the ball shell, a water containing cavity is formed between the outer wall of the elastic air bag and the inner wall of the containing cavity, the water inlet pipes communicate with the water containing cavity, and the air supply pipe communicates with the elastic air bag; the elastic air bag is used for adjusting the water amount in the water containing cavity. According to the embodiment of the invention, the elastic air bag capable of freely expanding is placed in the accommodating cavity in the spherical shell, and the air pressure of the air supply pipe entering and exiting from the elastic air bag is adjusted, so that the elastic air bag is alternately expanded and shrunk to control the amount of water entering and exiting from the water accommodating cavity, and the buoyancy of the wave making ball can change along with the change of the amount of water in the water accommodating cavity; dynamic control over the up-down bouncing amplitude and rhythm of the spherical shell is achieved, a user can freely adjust air supply and suction parameters of the air supply pipe according to actual application requirements, the bouncing amplitude and frequency of the wave making ball can be finally controlled, different wave effects can be generated on the water surface, and the wave making ball is simple in structure.

Description

Technical Field

[0001] The invention relates to the technical field of wave-making equipment, in particular to a wave-making ball and a wave-making training pool. Background Art

[0002] In recent years, typhoons and the secondary disasters they cause have occurred frequently in coastal areas, such as natural disasters such as sea waves and rainstorms. As a key link in emergency rescue, maritime rescue is particularly important. Especially during the typhoon season, maritime rescue missions are often very arduous, requiring both efficient rescue equipment and trained rescuers to have the ability to cope with complex sea conditions. Therefore, the establishment of a wave simulation training pool has become an urgent need for rescuers to conduct maritime rescue training, which can help them become familiar with and master maritime rescue skills and improve their emergency response capabilities.

[0003] Artificial wave making is a multidisciplinary and comprehensive equipment engineering, which involves several disciplines such as aerodynamics, wave mechanics, mechanics, and electrical control systems. It is roughly the same as the mechanism of wave generation on the sea surface, and waves are formed due to changes in air pressure on the water surface. At present, the wave-making device used in the design of the wave simulation pool usually uses technical means such as fans or mechanical devices to adjust the fluctuations of the water surface, and adjusts the frequency, amplitude and direction of the waves through a computer control system to simulate the real wave environment, such as using external ropes to directly pull the ball in the water to move continuously, or using a water tank set in the ball and using gas to directly push the water out, so that the ball in the water continues to move and continuously pushes the water to simulate waves, thereby providing different types of wave effects for entertainment venues or maritime rescue personnel.

[0004] However, existing wave simulation pools have some shortcomings. First, external rope traction requires complex transmission devices and fixing devices, which increases the difficulty of system design and installation. The ropes are easily affected by the external environment (such as wear, stretching and corrosion), resulting in reduced service life and increased maintenance costs. In addition, since the traction force of the ball is easily limited by the accuracy of rope tension control, the waves generated are difficult to achieve precise control. Directly pushing the water out through gas is greatly affected by air pressure fluctuations. Gas compression requires high energy consumption, and the conversion efficiency is limited, resulting in high overall energy consumption and difficulty in forming stable and controllable waves. The existing wave-making devices are not stable enough, and it is difficult to continuously produce consistent and compliant waves, resulting in unsatisfactory training results. Therefore, there is an urgent need for a new wave-making ball technology that can simulate waves more stably and economically to meet diverse wave-making needs. Summary of the invention

[0005] The invention provides a wave-making ball and a wave-making training pool, so as to solve the technical problems that the existing wave-making equipment has a complex structure and the wave-making effect is difficult to control.

[0006] In order to solve the above technical problems, the present invention provides a wave-making ball, including a spherical shell, an elastic airbag, an air supply pipe and a plurality of water inlet pipes. The spherical shell is provided with a accommodating cavity for placing and allowing the elastic airbag to expand. A water containing cavity is formed between the outer wall of the elastic airbag and the inner wall of the accommodating cavity. The water inlet pipe is connected to the water containing cavity, and the air supply pipe is connected to the elastic airbag.

[0007] Furthermore, the spherical shell includes a first hemispherical shell and a second hemispherical shell arranged opposite to the first hemispherical shell, the first hemispherical shell is located at the upper end of the second hemispherical shell, the first hemispherical shell is smoothly connected to the second hemispherical shell, and the mass of the second hemispherical shell is greater than or equal to twice the mass of the first hemispherical shell.

[0008] Furthermore, the first hemispherical shell and the second hemispherical shell are both made of stainless steel, and the wall thickness of the second hemispherical shell is greater than or equal to twice the wall thickness of the first hemispherical shell.

[0009] Furthermore, a plurality of the water inlet pipes are evenly arranged in a ring shape at the bottom of the second hemispherical shell, or a plurality of the water inlet pipes are distributed at the bottom of the second hemispherical shell and the density of the water inlet pipes gradually decreases from the bottom of the second hemispherical shell upward.

[0010] Furthermore, a plurality of arc-shaped grooves are formed on the inner wall of the second hemispherical shell, and the bottoms of the arc-shaped grooves are connected to the water inlet pipe.

[0011] Furthermore, it also includes a limiting member, one end of which is fixed to the top of the water containing cavity, and the other end is fixed to the top of the elastic airbag, and the limiting member is used to limit the deflection of the elastic airbag.

[0012] Furthermore, the maximum volume of the elastic airbag after expansion is less than or equal to the volume of the accommodating cavity.

[0013] Furthermore, the elastic airbag and the air supply pipe are both made of EPDM rubber material.

[0014] On the other hand, the present invention also provides a wave-making training pool, comprising a wave-making ball as described in any one of the above, and also comprising a water pool for placing the wave-making ball, a fixing rope for fixing the wave-making ball, and an air supply device for supplying air to the wave-making ball, wherein one end of the fixing rope is fixed to the bottom of the water pool, and the other end is fixed to the bottom of the wave-making ball, and the air supply device is arranged beside the water pool and connected to the wave-making ball.

[0015] Furthermore, the air supply device includes a blower, an air tank, a first solenoid valve, a second solenoid valve and an exhaust pipe, the air tank is connected to the blower, the air tank is connected to the wave-making ball through the air supply pipe, the first solenoid valve and the exhaust pipe are arranged on the air supply pipe, the exhaust pipe is located between the first solenoid valve and the wave-making ball, the second solenoid valve is arranged on the exhaust pipe to control the exhaust pipe to be connected with the outside world, and the first solenoid valve and the second solenoid valve are alternately opened and closed to control the air inlet and outlet of the wave-making ball.

[0016] Compared with the prior art, the wave-making ball and wave-making training pool according to the embodiment of the present invention have the following beneficial effects:

[0017] The embodiment of the present invention opens a containing cavity inside the spherical shell and places a freely expandable elastic airbag in the containing cavity. A water containing cavity is formed between the outer wall of the elastic airbag and the inner wall of the containing cavity, and is connected to an external water pool through multiple water inlet pipes, so that water can freely enter and exit the water containing cavity. The elastic airbag is connected to an external air source through an air supply pipe. When the air supply pipe supplies air to the elastic airbag, the elastic airbag expands and compresses the volume of the water containing cavity, and the water in the water containing cavity is squeezed to the outside; when the air supply pipe discharges the gas in the airbag, the volume of the elastic airbag shrinks, and the volume of the water containing cavity gradually increases, and the external water can be re-sucked into the water containing cavity by using the pressure difference. By controlling the supply and exhaust pressure of the air supply pipe to adjust the alternating expansion and contraction of the elastic airbag, the amount of water entering and leaving the wave-making ball can be controlled. The buoyancy of the wave-making ball changes with the change of the water volume, and finally the amplitude and rhythm of the up and down bouncing of the ball shell can be dynamically controlled, so that different types of wave effects can be produced on the water surface. The wave-making ball is not only simple in structure and easy to operate, but also has significant controllability of the wave-making effect. Users can freely adjust the supply and exhaust parameters of the air intake pipe according to actual application needs to control the amplitude and frequency of the wave-making ball, thereby realizing the adaptation of various scenes from water entertainment to scientific research experiments, improving the convenience of the equipment, and being suitable for use in various environments. This high degree of flexibility and precise control capability provides a new technical solution for wave-making equipment, showing great market potential and practical value.

[0018] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to better understand the present invention and do not constitute a limitation of the present invention.

[0020] Figure 1 It is a schematic structural diagram of a wave-making ball provided by an embodiment of the present invention at one angle;

[0021] Figure 2 is a structural schematic diagram of a wave-making ball provided by an embodiment of the present invention from another angle;

[0022] Figure 3 is a half-section view of a wave-making ball provided by an embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of a wave-making training pool provided by an embodiment of the present invention.

[0024] In the figure, 10, wave-making ball; 11, ball shell; 111, first hemispherical shell; 112, second hemispherical shell; 113, arc-shaped groove; 12, elastic air bag; 13, air supply pipe; 14, water inlet pipe; 15, limiter; 16, water holding chamber; 20, pool; 30, fixing rope; 40, air supply device; 41, blower; 42, air storage tank; 43, first solenoid valve; 44, second solenoid valve; 45, exhaust pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings and embodiments in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that directional words, such as the terms "middle", "upper", "lower", "inside" and "outside", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "at least" means one or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1-3 As shown, an embodiment of the present invention provides a wave-making ball 10, including a ball shell 11, an elastic airbag 12, an air supply pipe 13 and a plurality of water inlet pipes 14. The ball shell 11 is provided with a accommodating cavity for placing and allowing the elastic airbag 12 to expand, a water containing cavity 16 is formed between the outer wall of the elastic airbag 12 and the inner wall of the accommodating cavity, the water inlet pipe 14 is connected to the water containing cavity 16, and the air supply pipe 13 is connected to the elastic airbag 12.

[0030] The embodiment of the present invention opens a receiving cavity inside the spherical shell 11, and places a freely expandable elastic airbag 12 in the receiving cavity. A water receiving cavity 16 is formed between the outer wall of the elastic airbag 12 and the inner wall of the receiving cavity, and is connected to an external water pool 20 through multiple water inlet pipes 14, so that water can freely enter and exit the water receiving cavity 16, and the elastic airbag 12 is connected to an external air source through an air supply pipe 13. When the air supply pipe 13 supplies air to the elastic airbag 12, the elastic airbag 12 expands and compresses the volume of the water receiving cavity 16, and the water in the water receiving cavity 16 is squeezed out; when the air supply pipe 13 discharges the gas in the airbag, the volume of the elastic airbag 12 shrinks, and the volume of the water receiving cavity 16 gradually increases, and the external water can be re-sucked into the water receiving cavity 16 by using the pressure difference. By controlling the supply and exhaust pressure of the air supply pipe 13 to adjust the alternating expansion and contraction of the elastic airbag 12, the amount of water entering and leaving the wave-making ball 10 can be controlled, and the buoyancy of the wave-making ball 10 changes with the change of the water volume, and finally the amplitude and rhythm of the up and down jumping of the ball shell 11 can be dynamically controlled, so that different types of wave effects can be produced on the water surface. The wave-making ball 10 is not only simple in structure and easy to operate, but also has significant controllability of the wave-making effect. Users can freely adjust the supply and exhaust parameters of the air intake pipe according to actual application requirements to control the jumping amplitude and frequency of the wave-making ball 10, thereby realizing the adaptation of various scenes from water entertainment to scientific research experiments, improving the convenience of the equipment, and being suitable for use in various environments. This high degree of flexibility and precise control capability provides a new technical solution for wave-making equipment, showing great market potential and practical value.

[0031] It should be noted that the spherical shell 11 is a closed structure, suspended on the water surface or a specific depth by buoyancy, and the internal accommodating cavity is connected to the outside through the air supply pipe 13 and multiple water inlets, and the air supply pipe 13 is connected to the elastic airbag 12, which is used to supply air to the elastic airbag 12 to support its expansion and squeeze the water in the water-containing cavity 16 to the outside. The process of water entering the wave-making ball 10 is as follows: when the gas is extracted from the air supply pipe 13, the elastic airbag 12 gradually shrinks, and the available volume of the water-containing cavity 16 increases. Since the pressure in the water-containing cavity 16 is less than the external water pressure, negative pressure will be generated in the water-containing cavity 16. Under the action of atmospheric pressure and the water's own pressure, water will enter the water-containing cavity 16 through the water inlet pipe 14 to fill the space. Among them, water is an incompressible fluid. When the local pressure changes, the pressure difference propagates through the water body to form fluctuations. By controlling the injection or discharge of gas, the amount of water in the water chamber 16 can be periodically adjusted, thereby changing the buoyancy of the wave-making ball 10, so that the wave-making ball 10 can jump up and down in the water. The wave-making ball 10 disturbs the local water surface to produce continuous water waves or spray, simulating the natural wave-making effect.

[0032] In addition, the elastic airbag 12 is usually made of high-strength elastic material, which can be repeatedly expanded and contracted without deformation or damage. The expansion and contraction of the elastic airbag 12 is smoother and more controllable, and can accurately adjust the amplitude and frequency of the waves, and quickly respond to the pressure changes of the air supply system, and more efficiently convert the gas pressure into water disturbance. It is important that the elastic airbag 12 can quickly return to its original shape to ensure consistency during continuous operation. Even under high-frequency and large-amplitude use conditions, the elastic airbag 12 can still maintain stable physical properties.

[0033] like Figure 1-3 As shown, in an optional embodiment of the present invention, the spherical shell 11 includes a first hemispherical shell 111 and a second hemispherical shell 112 arranged opposite to the first hemispherical shell 111, the first hemispherical shell 111 is located at the upper end of the second hemispherical shell 112, the first hemispherical shell 111 is smoothly connected to the second hemispherical shell 112, and the mass of the second hemispherical shell 112 is greater than or equal to twice the mass of the first hemispherical shell 111.

[0034] Specifically, by dividing the spherical shell 11 into two hemispherical shells 11, the first hemispherical shell 111 and the second hemispherical shell 112 can be sealed and connected by flanges, sealing rings and other components. When the hemispherical shell 11 is manufactured as a single component, a standardized mold or processing technology can be used to reduce the complexity required for the overall processing of the spherical shell 11. When it is necessary to maintain or replace part of the spherical shell 11, only a single hemispherical shell 11 needs to be operated, and it is easier and faster to install or replace the internal elastic airbag 12, the air supply pipe 13 and the water inlet pipe 14, etc., without the need for additional tools to disassemble the entire spherical shell 11, saving time and cost. In addition, the two hemispherical shells 11 can be selected from different materials or thicknesses according to the use requirements. For example, the first hemispherical shell 111 can be made of transparent materials to observe the internal situation, and the second hemispherical shell 112 can be made of high-strength materials to withstand external water pressure.

[0035] And by setting the second hemispherical shell 112 mass greater than or equal to twice the mass of the first hemispherical shell 111, the mass of the second hemispherical shell 112 is significantly greater than the first hemispherical shell 111, and the overall center of gravity of the wave-making ball 10 moves downward, forming a structural characteristic of being heavy at the bottom and light at the top. When the wave-making ball 10 jumps up and down in the water, this center of gravity design can effectively prevent the sphere from turning over during the motion process, thereby maintaining the consistency of its working direction. In addition, during the operation of the wave-making ball 10, the larger mass of the second hemispherical shell 112 can provide more inertia for downward motion, increase the downward force when the elastic air bag 12 is compressed, and through the rapid compression and expansion of the elastic air bag 12, this design can enhance the discharge efficiency of water, thereby realizing a stronger and more uniform wave-making effect. And the second hemispherical shell 112 is due to its larger mass, when subjected to external impact or wave action, its inertia can effectively disperse the force, reduce the damage probability caused by the elastic air bag 12 and other components in the spherical shell 11 due to external force.

[0036] It should be noted that the first hemispherical shell 111 is smoothly connected with the second hemispherical shell 112, and the two outer walls are smoothly connected to form a continuous curved surface structure, so that when the fluid (such as water, air) flows around the spherical shell 11, turbulence or vortex caused by the abrupt edges can be avoided, and the fluid resistance can be significantly reduced. In addition, the smooth transition of the outer wall provides a seamless surface, which is conducive to laying flexible materials such as rubber layers or special coatings on the outer wall of the spherical shell 11, which can not only effectively enhance the wear resistance of the surface of the spherical shell 11, but also increase the friction in contact with the water body, thereby improving the stability and performance of the wave-making ball 10 in the water. The smooth transition design of the wall enables the elastic airbag 12 to be evenly attached to the inner wall of the accommodating cavity after expansion, eliminating the steps or sharp edges that may appear at the connection, avoiding the elastic airbag 12 from being scratched or damaged during expansion, ensuring that the deformation of the expanded airbag is more uniform, effectively squeezing the water in the water-containing cavity 16, and improving the water discharge efficiency. In summary, the first hemispherical shell 111 and the second hemispherical shell 112 are smoothly connected, which can avoid stress concentration caused by abrupt edges, especially effectively disperse external forces under high pressure environments. The dispersed stress makes the load of the spherical shell 11 material evenly distributed, thereby improving its overall compressive resistance.

[0037] like Figure 3 As shown, in an optional embodiment of the present invention, the first hemispherical shell 111 and the second hemispherical shell 112 are both made of stainless steel, and the wall thickness of the second hemispherical shell 112 is greater than or equal to twice the wall thickness of the first hemispherical shell 111 .

[0038] Specifically, by setting the wall thickness of the second hemispherical shell 112 to be greater than or equal to the wall thickness of the first hemispherical shell 111, the wall thickness of the second hemispherical shell 112 is increased, making its mass significantly greater than the first hemispherical shell 111, thereby moving the overall center of gravity of the sphere downward. In the wave simulation training pool, this downward center of gravity design can significantly enhance the sphere's anti-overturning ability, and the equipment can maintain stable operation even under severe fluctuations or high-intensity wave simulation conditions. The second hemispherical shell 112 has a stronger impact resistance due to the increased wall thickness, and can withstand the impact of water flow and other external forces. During the movement of the equipment, especially when simulating severe waves, the second hemispherical shell 112 can effectively resist strong water pressure and external force impact, thereby extending the service life of the equipment.

[0039] Among them, stainless steel has high tensile strength, yield strength and corrosion resistance, and can withstand water pressure and the mechanical impact of the wave-making ball 10 when it bounces repeatedly. The high strength and corrosion resistance of the stainless steel material further enhance the durability of the ball shell 11, especially when used in a long-term water environment. Stainless steel S30408 ​​material can usually be selected for manufacturing, which has excellent corrosion resistance. Even if it is in water for a long time, especially in highly corrosive environments such as salt water and seawater, it can effectively avoid rust and corrosion problems, thereby extending the service life of the wave-making ball 10.

[0040] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, multiple water inlet pipes 14 are evenly arranged in a ring shape at the bottom of the second hemispherical shell 112, or multiple water inlet pipes 14 are distributed at the bottom of the second hemispherical shell 112 and the density of the water inlet pipes 14 gradually decreases from the bottom of the second hemispherical shell 112 upward.

[0041] Specifically, a plurality of water inlet pipes 14 are evenly distributed along the circumference of the bottom of the second hemispherical shell 112 to form an annular arrangement. The water enters the water holding chamber 16 through these evenly distributed water inlet pipes 14. The annular layout of the water inlet pipes 14 helps the water flow to form a symmetrical pressure distribution in the water holding chamber 16, so that the movement of the wave-making ball 10 is more balanced, and the generation of overly concentrated or uneven water flow pressure is avoided. The water inlet pipes 14 are densely distributed at the bottom of the second hemispherical shell 112, and gradually decrease toward the upper part. The high-density water inlet pipes 14 at the bottom allow the water flow to enter the water holding chamber 16 in a concentrated and powerful manner, while the fewer water inlet pipes 14 at the upper part gradually weaken the guiding effect of the water flow, and avoid excessive concentration of the water flow. This layout helps to reduce unnecessary water flow resistance, so that the wave-making ball 10 moves more smoothly in the water, and avoids instability or rapid rolling caused by overly concentrated water flow.

[0042] like Figure 3 As shown, in an optional embodiment of the present invention, a plurality of arc-shaped grooves 113 are formed on the inner wall of the second hemispherical shell 112 , and the bottom of the arc-shaped grooves 113 is connected to the water inlet pipe 14 .

[0043] Specifically, by opening an arc-shaped groove 113 on the inner wall of the spherical shell 11, the arc-shaped groove 113 can guide the water flow to flow along the arc path of the groove after entering through its curved surface structure, effectively guiding the water in the water containing chamber 16 to enter the water inlet pipe 14 and be discharged to the outside, reducing the water flow resistance at the mouth of the water inlet pipe 14, avoiding excessive concentration of water flow or formation of vortex, and helping to form a uniform water flow pressure in the water containing chamber 16, thereby enhancing the stability and sustainability of the waves.

[0044] like Figure 3 As shown, in an optional embodiment of the present invention, a limiter 15 is further included, one end of the limiter 15 is fixed to the top of the water containing chamber 16, and the other end is fixed to the top of the elastic airbag 12. The limiter 15 is used to limit the deflection of the elastic airbag 12.

[0045] Specifically, by setting a stopper 15 on the top of the elastic airbag 12, the stopper 15 is fixed at the top of the water chamber 16 at one end away from the elastic airbag 12, which is used to limit and guide the expansion and contraction direction of the elastic airbag 12, ensuring that the elastic airbag 12 can always remain in a predetermined position, and by limiting the range of motion of the airbag, it is prevented from deflecting or irregularly deforming during expansion. At the same time, the setting of the stopper 15 can effectively prevent the elastic airbag 12 from shaking left and right in the water chamber 16, ensuring its stable position during the expansion process, reducing unnecessary water flow disturbance caused by the shaking of the airbag, and reducing the imbalance and instability of the wave-making ball 10 caused by uneven internal water pressure distribution.

[0046] The stopper 15 can be a telescopic rod that can be freely extended and retracted in the vertical direction. The adjustable characteristics of the retractable rod can make it move flexibly in the vertical direction, and the position of the stopper 15 can be adjusted according to the expansion degree of the airbag. This ensures that the elastic airbag 12 can be effectively guided under different water level conditions. The design of the stopper 15 can effectively reduce the amplitude of the airbag shaking in the water, thereby improving the stability of the wave-making ball 10 in the water. The stable water flow and wave effect reduce the wear of the wave-making ball 10, which helps to extend the service life of the device.

[0047] In an optional embodiment of the present invention, the maximum volume of the elastic airbag 12 after expansion is less than or equal to the volume of the accommodating cavity.

[0048] Specifically, the elastic airbag 12 adjusts the amount of water in the water-containing cavity 16 by expansion and contraction, and the maximum volume of the elastic airbag 12 after expansion is less than or equal to the volume of the containing cavity. The expansion volume of the elastic airbag 12 is appropriately limited so that the elastic airbag 12 can squeeze out the water in the water-containing cavity 16 as much as possible after expansion, but not completely empty the water cavity. When the elastic airbag 12 contracts, the external water can enter the water-containing cavity 16 faster and smoothly through the water inlet pipe 14, reducing water resistance and producing better wave effects. At the same time, it can avoid excessive squeezing of the inner wall of the spherical shell 11, extend the service life of the equipment, and maintain the stability and adjustability of the water flow, thereby achieving more stable and regular wave generation.

[0049] In an optional embodiment of the present invention, the elastic airbag 12 and the air supply pipe 13 are both made of EPDM rubber material.

[0050] Specifically, EPDM is a synthetic rubber, mainly composed of ethylene, propylene and a small amount of diene, and it is widely used in industry because of its excellent performance and wide application fields. By adopting EPDM material to manufacture elastic airbag 12 and air supply pipe 13, not only can the durability and stability of wave-making ball 10 be enhanced, but also its long-term performance under various environments can be ensured. These characteristics include excellent wear resistance, non-absorbency, oxidation resistance, ozone resistance and corrosion resistance, so that the material performs well when used underwater, and meets the standards of sanitary drinking water materials, ensuring that it will not release harmful substances when in contact with water. This feature is crucial to the application of wave-making ball 10, especially in occasions with high water quality requirements (such as water recreation facilities, etc.). Using materials that meet the standards can effectively avoid pollution of water quality and ensure safety and health.

[0051] More importantly, EPDM has excellent elasticity, which can ensure that the airbag exhibits excellent flexibility and resilience during expansion and contraction. This enables the airbag to flexibly adapt to different water pressures and external environmental changes in the process of controlling the amount of water in the water-containing chamber 16, providing a smooth and efficient wave-generating effect. In addition, the highly elastic EPDM supports the air supply pipe 13, so that the air supply pipe 13 in the external water can effectively cooperate with the wave-making movement, better withstand the dynamic movement of the wave-making ball 10, and generate a stable water flow in the water to form a wave effect and avoid breaking.

[0052] like Figure 4 As shown, an embodiment of the present invention further provides a wave-making training pool, comprising a wave-making ball 10, a water pool 20 for placing the wave-making ball 10, a fixing rope 30 for fixing the wave-making ball 10, and an air supply device 40 for supplying air to the wave-making ball 10, wherein one end of the fixing rope 30 is fixed to the bottom of the water pool 20, and the other end is fixed to the bottom of the wave-making ball 10, and the air supply device 40 is arranged beside the water pool 20 and connected to the wave-making ball 10.

[0053] Specifically, the wave-making ball 10, as the core device for generating waves, expands and contracts the elastic airbag 12 inside, so as to achieve up and down jumping on the water surface of the pool 20 to promote the flow of water in the pool 20, thereby forming different types of wave effects. The expansion of the elastic airbag 12 can continuously provide gas through the air supply device 40 to adjust the change of water volume in the pool 20, thereby generating waves of different intensities and frequencies. According to training requirements, the air supply device 40 can adjust the gas flow and pressure entering the airbag through the air supply pipe 13 to control the speed and degree of the up and down jumping of the wave-making ball 10, thereby adjusting the intensity and period of the waves.

[0054] The setting of the fixing rope 30 ensures that the wave ball 10 will not accidentally drift or flip in the pool 20. One end of the fixing rope 30 is fixed to the bottom of the pool 20, and the other end is fixed to the bottom of the wave ball 10, which can limit the movement range of the wave ball 10 and effectively maintain it running at the set position. The length and strength of the fixing rope 30 should be reasonably adjusted according to the depth of the pool 20, the size of the wave ball 10 and the intensity of the waves generated. The fixing lock can usually be a flexible rope or an iron chain to ensure the stability of the wave ball 10.

[0055] The pool 20 provides enough space to accommodate the wave-making ball 10 and the water body, so that the waves can propagate and reflect in the pool 20, simulating the effect of waves or other water fluctuations, and meeting the training requirements. The design of the pool 20 must ensure that the volume is moderate, capable of accommodating the movement trajectory of the wave-making ball 10, and at the same time ensuring the effective propagation of the waves. The dimensions of the pool 20 are usually designed as follows: the pool depth is not less than 4.0m, the water depth is not less than 2.0m, and the plane area is not less than 10mx10m; the sphere diameter of the wave-making ball 10 can usually be selected between 1-2m, and its wall thickness can be selected between 2-4mm, and 16 water inlet pipes 14 with a diameter of 20mm can usually be selected at the bottom of the wave-making ball 10 for arrangement.

[0056] It should be emphasized that the dimensions and materials described in the optional embodiments of the present invention are only used to explain the specific implementation of the present application, and are intended to provide an example of implementing the technology, and do not mean to limit or restrict the present invention. In fact, the present invention can be designed and manufactured using various sizes and materials to adapt to different application requirements and technical environments. Therefore, the dimensions and materials mentioned in this example are only examples, and other applicable ones are not excluded.

[0057] like Figure 4 As shown, in an optional embodiment of the present invention, the air supply device 40 includes a blower 41, an air tank 42, a first solenoid valve 43, a second solenoid valve 44 and an exhaust pipe 45, the air tank 42 is connected to the blower 41, the air tank 42 is connected to the wave-making ball 10 through the air supply pipe 13, the first solenoid valve 43 and the exhaust pipe 45 are arranged on the air supply pipe 13, the exhaust pipe 45 is located between the first solenoid valve 43 and the wave-making ball 10, the second solenoid valve 44 is arranged on the exhaust pipe 45 to control the exhaust pipe 45 to be connected with the outside, and the first solenoid valve 43 and the second solenoid valve 44 are alternately opened and closed to control the air inlet and outlet of the wave-making ball 10.

[0058] Specifically, the blower 41 is the core component of the air supply device 40 and is responsible for providing the gas flow. Usually, the air supply of the blower 41 is maintained at 2000-15000 Nm 3 / h. The blower 41 sucks air from the outside and transports it to the air tank 42 through a pipeline. The blower 41 can generate a stable airflow according to demand, ensuring that the air tank 42 has enough gas to supply the wave-making ball 10, thereby controlling the generation of waves. The design of the blower 41 ensures the stability and uniformity of the air supply, so that the airbag will not be affected by airflow fluctuations during the expansion and contraction process, thereby ensuring the stability of the wave effect.

[0059] The gas storage tank 42 is used to store the gas from the blower 41 and provide it to the wave-making ball 10 when needed. The gas storage tank 42 is provided with a pressure switch, and the pressure is maintained between 0.1-0.2MPa. The gas storage tank 42 can effectively buffer and adjust the supply of gas to ensure that there will be no interruption or fluctuation of the air flow during the gas supply process, thereby providing stable waves. The gas storage tank 42 provides the necessary amount of gas for the wave-making ball 10, especially when the degree of expansion of the air bag needs to be changed quickly in a short time, the gas storage tank 42 can provide fast gas output to ensure the rapid expansion and contraction of the air bag of the wave-making ball 10.

[0060] The electromagnetic valve adjusts its switch state through an electric control signal to ensure that the gas enters or is discharged from the elastic airbag 12 of the wave-making ball 10 according to a predetermined flow rate and pressure. The two electromagnetic valves are respectively a first electromagnetic valve 43 and a second electromagnetic valve 44. The first electromagnetic valve 43 is arranged on the air supply pipe 13, and the second electromagnetic valve is arranged on an exhaust pipe 45 connected to the outside world, which is used to control the conduction of the exhaust pipe 45 with the outside world. Among them, the exhaust pipe 45 is connected to the air supply pipe 13 and is located between the first electromagnetic valve 43 and the wave-making ball 10. When the first electromagnetic valve 43 is opened and the second electromagnetic valve 44 is closed, the exhaust pipe 45 is closed, and the air supply pipe 13 can inflate the elastic airbag 12 of the wave-making ball 10, squeezing the water in the water-containing cavity 16 out of the ball shell 11; when the second electromagnetic valve 44 is opened and the first electromagnetic valve 43 is closed, the exhaust pipe 45 is opened and connected to the outside world, and the elastic airbag 12 in the wave-making ball 10 is exhausted. Under the action of the external pressure difference, the pool water enters the ball. By alternately and continuously inflating or exhausting the elastic airbag 12, the buoyancy of the ball is continuously increasing or decreasing, and the ball will bounce up and down, creating waves on the water surface. By adjusting the size of the air supply pressure and the opening and closing speed of the electromagnetic valve, the jumping amplitude and frequency of the wave-making ball 10 can be adjusted to produce different wave effects. In order to save manufacturing costs and facilitate layout, the part of the air supply pipe 13 extending out of the pool 20 can be made of stainless steel.

[0061] The wave-making ball 10 provided by the embodiment of the present invention can be applied to the working scene of artificial wave-making, and provides users with a wave-making device that is efficient, convenient, simple in structure and has significant wave-making effect. When the wave-making ball 10 is used, the actual working process of achieving different jumping amplitudes of the ball shell 11 to produce different types of wave-making effects by controlling the supply and exhaust pressure of the air supply pipe 13 is as follows: the wave-making ball 10 is placed in the pool 20, and the water in the pool 20 enters the water containing chamber 16 from the water inlet pipe 14 under the action of the pressure difference. When the first solenoid valve 43 is opened and the second solenoid valve 44 is closed, the air supply pipe 13 continuously inflates the elastic airbag 12, causing it to expand and squeeze the water in the water containing chamber 16 out of the body, When the second solenoid valve 44 is opened and the first solenoid valve 43 is closed, the gas in the elastic airbag 12 is discharged from the exhaust pipe 45 through the air supply pipe 13, and the elastic airbag 12 shrinks. The water in the pool 20 is squeezed back into the water holding chamber 16 in the wave-making ball 10 by the pressure difference. During the process of water entering and exiting the water holding chamber 16, the buoyancy of the wave-making ball 10 changes with the change of the water volume, so that the ball shell 11 can jump on the surface of the pool water, and finally a wave effect can be formed by disturbing the local water surface of the pool 20. By adjusting the size of the air supply pressure and the opening and closing speed of the solenoid valve, the jumping amplitude and frequency of the wave-making ball 10 can be adjusted, thereby producing different wave effects. Users can freely adjust the air supply and exhaust parameters of the air intake pipe according to actual application requirements to control the jumping amplitude and frequency of the wave-making ball 10, thereby realizing the adaptation of various scenes from water entertainment to scientific research experiments, improving the convenience of the equipment, and being suitable for use in various environments. This high degree of flexibility and precise control capability provides a new technical solution for wave-making equipment, demonstrating great market potential and practical value.

[0062] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wave-making ball, characterized in that: It includes a spherical shell, an elastic airbag, an air supply pipe and multiple water inlet pipes. The spherical shell is provided with a accommodating cavity inside which the elastic airbag is placed and can be expanded. A water containing cavity is formed between the outer wall of the elastic airbag and the inner wall of the accommodating cavity. The water inlet pipe is connected to the water containing cavity, and the air supply pipe is connected to the elastic airbag.

2. The wave-making ball according to claim 1, characterized in that: The spherical shell includes a first hemispherical shell and a second hemispherical shell arranged opposite to the first hemispherical shell, the first hemispherical shell is located at the upper end of the second hemispherical shell, the first hemispherical shell is smoothly connected to the second hemispherical shell, and the mass of the second hemispherical shell is greater than or equal to twice the mass of the first hemispherical shell.

3. The wave-making ball according to claim 2, characterized in that: The first hemispherical shell and the second hemispherical shell are both made of stainless steel, and the wall thickness of the second hemispherical shell is greater than or equal to twice the wall thickness of the first hemispherical shell.

4. The wave-making ball according to claim 2, characterized in that: A plurality of the water inlet pipes are evenly arranged in a ring shape at the bottom of the second hemispherical shell, or a plurality of the water inlet pipes are distributed at the bottom of the second hemispherical shell and the density of the water inlet pipes gradually decreases from the bottom of the second hemispherical shell upward.

5. The wave-making ball according to claim 4, characterized in that: The inner wall of the second hemispherical shell is provided with a plurality of arc-shaped grooves, and the bottoms of the arc-shaped grooves are communicated with the water inlet pipe.

6. The wave-making ball according to claim 1, characterized in that: It also includes a limiting member, one end of which is fixed to the top of the water containing cavity, and the other end is fixed to the top of the elastic airbag, and the limiting member is used to limit the deflection of the elastic airbag.

7. The wave-making ball according to claim 1, characterized in that: The maximum volume of the elastic airbag after expansion is less than or equal to the volume of the accommodating cavity.

8. The wave-making ball according to claim 1, characterized in that: The elastic airbag and the air supply pipe are both made of EPDM rubber material.

9. A wave-making training pool, comprising the wave-making ball according to any one of claims 1 to 8, characterized in that: It also includes a pool for placing the wave-making ball, a fixing rope for fixing the wave-making ball, and an air supply device for supplying air to the wave-making ball. One end of the fixing rope is fixed to the bottom of the pool, and the other end is fixed to the bottom of the wave-making ball. The air supply device is arranged beside the pool and connected to the wave-making ball.

10. The wave-making training pool according to claim 9, characterized in that: The air supply device includes a blower, an air tank, a first solenoid valve, a second solenoid valve and an exhaust pipe. The air tank is connected to the blower, and the air tank is connected to the wave-making ball through the air supply pipe. The first solenoid valve and the exhaust pipe are arranged on the air supply pipe, and the exhaust pipe is located between the first solenoid valve and the wave-making ball. The second solenoid valve is arranged on the exhaust pipe to control the exhaust pipe to be connected with the outside world, and the first solenoid valve and the second solenoid valve are alternately opened and closed to control the air inlet and outlet of the wave-making ball.

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