A surfing device based on a river weir

Abstract

The present invention discloses a surfing device based on a river weir dam, which is used to provide an ideal sports scene for surfing sports and belongs to the fields of river landscape and water sports. The device includes a river channel pool and a dam body discharge channel that cooperates with the river channel pool. A guide plate is provided at the bottom end of the dam body discharge channel, and a deep pool is provided in the downstream direction of the guide plate. A tail water plate is provided at an interval distance on the side of the deep pool away from the guide plate. This device can create ideal surfing conditions in the downstream area of the dam body, effectively solving the problems of lack of interactivity and sports performance in static display devices such as artificial waterfalls and landscape fountains.

Description

Technical Field

[0001] The present invention belongs to the field of river landscape and water sports, and particularly relates to a surfing device based on a river weir dam. Background Art

[0002] With the progress of society and people's pursuit of a healthy lifestyle, water sports, especially outdoor sports such as surfing, have gradually become popular among the public. Surfing, as a challenging and entertaining water sport, usually needs to be carried out in coastal areas with natural wave conditions. Currently, although some landscape designs have been introduced in rivers, dams and other water facilities, such as artificial waterfalls, landscape fountains and other devices, most of these devices are mainly for static display, lacking interactivity and motility. Especially in natural rivers with gentle slopes and small flows, the water flow is difficult to form effective waves or hydraulic jumps, which limits the creation of water surface fluctuation effects and cannot meet the needs of surfing activities.

[0003] Application No. KR1020210024552 discloses a variable indoor surfing system that can freely adjust the tilt angle and width of the surfing component through the improvement of the existing indoor surfing system, and an intelligent indoor surfing system that can analyze surfing behavior by attaching motion detection sensors to users and surfboards. This patent still has room for improvement.

[0004] It should be noted that the above introduction of the technical background is only for the convenience of clearly and completely explaining the technical solution of the present application and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of the present application. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the present invention provides a surfing device based on a river weir dam, which is used to provide an ideal sports scene for surfing. This device can create ideal surfing conditions in the downstream area of the dam body, effectively solving the problem that static display devices such as artificial waterfalls and landscape fountains lack interactivity and motility.

[0006] To solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A surfing device based on a river weir dam includes a river channel pool and a dam body discharge channel cooperating with the river channel pool. A guide plate is provided at the bottom end of the dam body discharge channel, a deep pool is provided in the downstream direction of the guide plate, and a tail water plate is provided at an interval distance on the side of the deep pool away from the guide plate.

[0008] According to an embodiment of the present invention, a river channel pool is arranged on one side of the top of the dam body discharge channel. There is a river weir dam between the river channel pool and the dam body discharge channel. The guide plate includes a left side plate and a right side plate, and the left side plate and the right side plate are connected by a hinge. The guide plate has the same structure as the tail water plate. A diving platform is provided on the side of the guide plate and the tail water plate. A stilling basin is provided downstream of the tail water plate and the diving platform. A stilling basin end sill is provided at the downstream end of the stilling basin. A rescue pool is provided adjacent to the stilling basin end sill, and a rescue platform is provided on one side of the rescue pool. A net is provided in the cross-section of the rescue pool, and the net is located at one end of the rescue pool away from the stilling basin end sill. A water level and velocity monitoring device is provided between the stilling basin end sill and the rescue platform. The water level and velocity monitoring device is connected to a control terminal, and the control terminal is connected in parallel with the guide plate and the tail water plate. The dam body discharge channel is provided with grid plates, and the grid plates are box bodies in an array combination. One end of the box body is open and threaded through holes are provided at the bottom.

[0009] Overall, this device includes a wave generation area, a surfing area, an energy dissipation area, and a rescue area. The wave generation area includes a river channel pool, a river weir dam, a dam body discharge channel, a guide plate, and a deep pool; the surfing area includes a tail water plate and a diving platform; the energy dissipation area includes a stilling basin and a stilling basin end sill; the rescue area includes a rescue platform, a net, a water level and velocity monitoring device, and a control terminal.

[0010] The outside of the river weir dam is the river channel pool. The dam body discharge channel is provided downstream of the river weir dam. The water in the river channel pool flows down along the dam body discharge channel through the river weir dam, is picked out by the guide plate at the end, and passes through the deep pool, forming a wave-shaped hydraulic jump. The guide plate arranged at the end of the dam body discharge channel can adjust the water inflow angle into the pool. The water inflow angles formed by guide plates at different angles are different. After setting the guide plate, the water surface form, water depth, and flow velocity of the wave-shaped hydraulic jump can be controlled more flexibly to create different surfing scenarios. A deep pool is arranged behind the guide plate. The water body in the deep pool will form a vertical clockwise backflow as the water in the river channel pool discharges, which helps to form larger waves. In order to create a wave-shaped hydraulic jump suitable for surfing, the water depth at the head of the wave-shaped hydraulic jump should be greater than 0.3 m, and the flow velocity should be between 2 and 5 m / s. An adjustable-angle tail water plate is arranged at the end of the wave-shaped hydraulic jump to adjust the water depth and flow velocity in the surfing area, and at the same time promote the formation of an energy dissipation hydraulic jump in the stilling basin to maintain the stability of the water surface in the rescue area. The guide plate and the tail water plate have the same structure. The left side plate of the guide plate is fixedly connected to the bottom plate of the wave generation area, and the left side plate of the tail water plate is fixedly connected to the bottom plate of the surfing area. The rotation of the right side plate can be controlled by means of controlling the rotation of the hinge by a motor, etc.

[0011] Diving platforms are arranged on both sides of the wave-shaped hydraulic jump; a tail water plate is arranged after the wave-shaped hydraulic jump, and at the same time the flow channel section is widened. The water body is picked out by the tail water plate and forms an energy dissipation hydraulic jump in the stilling basin under the action of the stilling basin end sill; a rescue area is arranged after the hydraulic jump position and a water level and velocity monitoring device, a rescue platform, and a net are placed to ensure the safety of personnel.

[0012] To meet the needs of surfing, a hydraulic jump with a series of gradually disappearing wave shapes without obvious swirling on the water surface should be formed in the surfing area. The key lies in controlling the Froude number at the end section of the dam discharge channel, and its calculation formula is as follows:

[0013]

[0014] Wherein, v is the velocity of the discharged water flow, g is the acceleration due to gravity (about 9.81 m / s²), and h is the water depth of the water flow.

[0015] When the Froude number is between 1.0 and 1.7, a stable wave-shaped hydraulic jump can be formed by the water flow. To meet the above Froude number conditions, the slope of the dam discharge channel should not be too steep and needs to be controlled below a slope ratio of 1:4. Under the condition of meeting the Froude number, the angle of the deflector can also be changed to change the inlet angle of the incoming water flow to form different forms of wave-shaped hydraulic jumps. At the same time, by adjusting the angle of the tail water plate, the head water depth of the wave-shaped hydraulic jump is made greater than 0.3 m, and the flow velocity is between 2 and 5 m / s. Such a wave-shaped hydraulic jump not only meets the surfing conditions but also has good ornamental and entertainment values.

[0016] The wave-shaped hydraulic jump is an adverse flow regime for the safety of the downstream river channel. Therefore, the water wave only needs to be maintained in the surfing area. After entering the energy dissipation area, through the hydraulic jump in the stilling basin, the wave-shaped hydraulic jump is made to disappear as much as possible to ensure that the water depth and flow velocity in the rescue area and the downstream river channel meet the human safety and river channel safety requirements. To ensure the stability of the water level in the rescue area and the safety of the downstream river channel, a stilling basin and a stilling basin end sill are set at the downstream position of the wave-shaped hydraulic jump. By adjusting the angle of the right side plate of the tail water plate, the water depth and flow velocity at the tail water plate are controlled, and then an energy dissipation hydraulic jump is formed in the stilling basin to dissipate the energy of the wave-shaped hydraulic jump water body to reduce the remaining kinetic energy after the hydraulic jump and protect the safety of the downstream river channel revetment.

[0017] Preferably, the water depth in the rescue area should be between 0.8 and 1.2 m.

[0018] The flow rate entering the surfing device is controlled by the water level in the upstream river channel. According to the upstream incoming flow conditions, it can be arranged in the full cross-section of the river channel or in a partial cross-section of the river channel. The upstream incoming flow conditions of the river channel mainly have the following two situations:

[0019] The first situation: There is a regulating reservoir upstream of the conventional weir dam. The overall flow rate over the weir can be controlled by adjusting the ecological flow rate, power generation flow rate, and irrigation flow rate discharged from the regulating reservoir. The water level above the weir is determined through the water level-flow rate relationship of the weir dam to calculate the flow rate entering the surfing device.

[0020] The second situation: If there is no reservoir to control the flow rate upstream of the weir dam, it is necessary to determine the river channel flow rate under different guarantee rates through hydrological analysis, and then determine the water level above the weir through the water level-flow rate relationship of the weir dam to calculate the flow rate entering the surfing device.

[0021] The hinge is regulated by a control terminal to regulate the inclination angle of the right side plate surface of the deflector, so as to form a stable energy dissipation hydraulic jump in the stilling basin, dissipate the energy of the undulating hydraulic jump water body, reduce the kinetic energy of the water body, maintain the stability of the water surface in the rescue area, and the water depth in the rescue area should be controlled within the safe water depth and flow velocity of the human body in combination with the overall water level-flow relationship curve of the river channel. When the water level and flow velocity in the rescue area deviate from the safe range, the system will automatically adjust the inclination angle of the right side plate surface of the deflector.

[0022] In order to save energy and avoid excessive wear of equipment, the indoor surfing device usually has a certain opening time and closing and maintenance time. During the closing period, devices such as deflectors will be closed, and the river channel weir will also be closed to prevent the water flow from continuously scouring the flow channel and other equipment, causing excessive wear of the equipment. The environment inside the river channel on the river channel pool has a certain degree of uncontrollability, and it often contains garbage such as branches and plastics. Although there are usually certain water purification measures on the river channel to mainly filter the garbage in the river, it is difficult to clean up some fine garbage. When the river channel weir is closed, the river channel pool will flow downward and accumulate these fine garbage outside the river channel weir, and personnel can clean it up to prevent the garbage accumulated outside from being washed down the dam body discharge channel when the river channel weir is suddenly opened, which may have a certain impact on surfers. When people surf on the flow channel, they usually use a professional surfboard on the dam body discharge channel. Due to the large water body scouring force, large flow rate, and fast flow velocity, it is difficult for beginners to maintain balance. The grid plate is designed, laid on the discharge channel and fixed with bolts to prevent it from being washed off. On the one hand, when people fall off the surfboard, due to the interval design of the grid plate, the frictional force is large, enabling people to maintain balance by themselves when falling on the surfboard and avoid falling injuries. On the other hand, when people fall, it can also prevent the situation that the conventional flow channel is too smooth to gain leverage to get up. And when people's items, such as watches, fall, the grid plate can intercept the fallen objects to prevent the items from being washed down the river channel and facilitate later retrieval. At the same time, teaching staff can stand on the grid plate to teach people under the state of water flow scouring. In the conventional situation, due to the large water flow scouring force and the relatively smooth flow channel, teaching staff cannot stand on the flow channel to conduct detailed teaching, which affects the teaching effect.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] Avoid the situation that when the river channel weir is suddenly opened, the garbage accumulated on its outer side will be washed down the dam body discharge channel, posing a certain safety hazard to surfers. After setting the guide plate, the water surface form, water depth and flow velocity of the undular hydraulic jump can be controlled more flexibly to create different surfing scenarios. The water body in the deep pool will form a vertical clockwise backflow with the discharge of the river channel pool, which helps to form larger waves. An adjustable-angle tail water plate is arranged at the end of the undular hydraulic jump to adjust the water depth and flow velocity in the surfing area, and at the same time promote the formation of an energy dissipation hydraulic jump in the stilling basin to maintain the water surface stability in the rescue area. Through the energy dissipation hydraulic jump in the stilling basin, the undular hydraulic jump is made to disappear as much as possible to ensure that the water depth and flow velocity in the rescue area and the downstream of the river channel meet the human safety and river channel safety requirements. Teaching staff can stand on the grid plate and teach people under the state of water flow scouring. When people fall, it can also avoid the situation that the conventional channel is too smooth to borrow strength to get up. And when items of people, such as watches, fall, the grid plate can intercept the falling objects to prevent the items from being washed down the river channel, which is convenient for later retrieval. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0026] Figure 1 Schematic diagram of the surfing device based on the river channel weir of the present invention;

[0027] Figure 2 Schematic diagram of the river channel weir of the present invention;

[0028] Figure 3 Schematic diagram of the grid plate of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the guide plate and the tail water plate of the present invention;

[0030] Figure 5 Schematic diagram of the regulation of the undular hydraulic jump of the surfing device of the present invention;

[0031] Figure 6 Schematic diagram of the connection of the control terminal of the present invention.

[0032] Reference numerals in the drawings: 1 - river channel pool; 2 - river channel weir; 3 - dam body discharge channel; 4 - diving platform; 5 - guide plate; 6 - deep pool; 7 - tail water plate; 8 - stilling basin; 9 - stilling basin end sill; 10 - water level and flow velocity monitoring device; 11 - rescue platform; 12 - netting; 13 - control terminal; 20 - hinge; 201 - left side plate; 202 - right side plate; 203 - grid plate. Specific embodiments

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] First, the concepts involved in the present application will be described with reference to the accompanying drawings. It should be noted here that the description of each concept below is only to make the content of the present application easier to understand and does not represent a limitation on the protection scope of the present application; at the same time, without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0035] Embodiment 1

[0036] See the attached Figures 1-6 As shown, a surfing device based on a river channel weir dam includes a river channel pool 1 and a dam body discharge channel 3 that cooperates with the river channel pool 1. A guide plate 5 is provided at the bottom end of the dam body discharge channel 3. A deep pool 6 is provided in the downstream direction of the guide plate 5. A tail water plate 7 is provided at an interval distance on the side of the deep pool 6 away from the guide plate 5.

[0037] On one side of the top end of the dam body discharge channel 3, a river channel pool 1 is arranged. A river channel weir dam 2 is provided between the river channel pool 1 and the dam body discharge channel 3. The guide plate 5 includes a left side plate surface 201 and a right side plate surface 202. The left side plate surface 201 and the right side plate surface 202 are connected by a hinge 20. The guide plate 5 has the same structure as the tail water plate 7. A diving platform 4 is provided on the side surfaces of the guide plate 5 and the tail water plate 7. A stilling basin 8 is provided in the downstream direction of the tail water plate 7 and the diving platform 4. A stilling basin end sill 9 is provided at the downstream end of the stilling basin 8. A rescue pool is provided at a position adjacent to the stilling basin end sill 9. A rescue platform 11 is provided on one side of the rescue pool. A net 12 is provided in the transverse cross-section of the rescue pool, and the net 12 is located at one end of the rescue pool away from the stilling basin end sill 9. A water level and flow velocity monitoring device 10 is provided between the stilling basin end sill 9 and the rescue platform 11. The water level and flow velocity monitoring device 10 is connected to a control terminal 13, and the control terminal 13 is connected in parallel with the guide plate 5 and the tail water plate 7. The dam body discharge channel 3 is provided with grid plates 203. The grid plates 203 are box bodies in an array combination. One end of the box body is open and threaded through holes are provided at the bottom.

[0038] Overall, this device includes a wave-making area, a surfing area, an energy dissipation area, and a rescue area. The wave-making area includes a river channel pool 1, a river channel weir 2, a dam body discharge channel 3, a guide vane 5, and a deep pool 6; the surfing area includes a tail water plate 7 and a diving platform 4; the energy dissipation area includes a stilling basin 8 and a stilling basin end sill 9; the rescue area includes a rescue platform 11, a net 12, a water level and velocity monitoring device 10, and a control terminal 13.

[0039] The outside of the river channel weir 2 is the river channel pool 1. A dam body discharge channel 3 is provided downstream of the river channel weir 2. The water in the river channel pool 1 flows down along the dam body discharge channel 3 through the river channel weir 2, is picked out by the guide vane 5 at the end, and passes through the deep pool 6, forming a wave-like hydraulic jump. The guide vane 5 arranged at the end of the dam body discharge channel 3 can adjust the water inflow angle into the pool. The water entry angles formed by the guide vanes 5 at different angles are different. After setting the guide vane 5, the water surface form, water depth, and flow velocity of the wave-like hydraulic jump can be controlled more flexibly to create different surfing scenarios. A deep pool 6 is arranged behind the guide vane 5. The water body in the deep pool 6 will form a vertical clockwise backflow as the river channel pool discharges water, which helps to form larger waves. In order to create a wave-like hydraulic jump suitable for surfing, the head water depth of the wave-like hydraulic jump should be greater than 0.3 m, and the flow velocity should be between 2 and 5 m / s. An adjustable-angle tail water plate 7 is arranged at the end of the wave-like hydraulic jump to adjust the water depth and flow velocity in the surfing area, and at the same time promote the formation of an energy dissipation hydraulic jump in the stilling basin 8 to maintain the stability of the water surface in the rescue area. The guide vane 5 and the tail water plate 7 have the same structure. The left side plate surface 201 of the guide vane 5 is fixedly connected to the bottom plate of the wave-making area, and the left side plate surface 201 of the tail water plate 7 is fixedly connected to the bottom plate of the surfing area. The rotation of the right side plate surface 202 can be controlled by means of controlling the hinge 20 by a motor.

[0040] Diving platforms 4 are arranged on both sides of the wave-like hydraulic jump; a tail water plate 7 is arranged after the wave-like hydraulic jump, and at the same time, the cross-section of the flow channel is widened. The water body is picked out by the tail water plate 7 and forms an energy dissipation hydraulic jump in the stilling basin 8 under the action of the stilling basin end sill 9; a rescue area is arranged after the hydraulic jump position, and a water level and velocity monitoring device 10, a rescue platform 11, and a net 12 are placed to ensure the safety of personnel.

[0041] In order to meet the needs of surfing, a hydraulic jump with a water surface without obvious swirling and presenting a series of gradually disappearing wave shapes should be formed in the surfing area. The key lies in controlling the Froude number of the cross-section at the end of the dam body discharge channel 3. The calculation formula is as follows:

[0042]

[0043] Among them, v is the velocity of the discharging water flow, g is the acceleration due to gravity (about 9.81 m / s²), and h is the water flow depth.

[0044] When the Froude number is between 1.0 and 1.7, a stable wave-like hydraulic jump can be formed in the water flow. To meet the above Froude number conditions, the slope of the spillway channel 3 of the dam body should not be too steep and needs to be controlled below a slope ratio of 1:4. When the Froude number is met, the angle of the deflector 5 can also be changed to change the inlet angle of the incoming water flow to form wave-like hydraulic jumps of different forms. At the same time, by adjusting the angle of the tail water plate 7, the head water depth of the wave-like hydraulic jump is made greater than 0.3 m, and the flow velocity is between 2 and 5 m / s. Such a wave-like hydraulic jump not only meets the surfing conditions but also has good ornamental and entertainment value.

[0045] The wave-like hydraulic jump is an adverse flow regime for the safety of the downstream river channel. Therefore, the water wave only needs to be maintained in the surfing area. After entering the energy dissipation area, through the hydraulic jump in the stilling basin 8, the wave-like hydraulic jump is made to disappear as much as possible to ensure that the water depth and flow velocity in the rescue area and the downstream river channel meet the requirements of human safety and river channel safety. To ensure the stability of the water level in the rescue area and the safety of the downstream river channel, a stilling basin 8 and a stilling basin end sill 9 are arranged at the downstream position of the wave-like hydraulic jump. By adjusting the angle of the right side plate 202 of the tail water plate 7, the water depth and flow velocity at the tail water plate 7 are controlled, and then an energy dissipation hydraulic jump is formed in the stilling basin 8 to dissipate the energy of the water body of the wave-like hydraulic jump, so as to reduce the remaining kinetic energy after the hydraulic jump and protect the safety of the downstream river channel revetment.

[0046] Preferably, the water depth in the rescue area should be between 0.8 and 1.2 m.

[0047] The flow rate entering the surfing device is controlled by the water level of the upstream river channel. According to the upstream inflow situation, it can be arranged in the full cross-section of the river channel or in the partial cross-section of the river channel. The upstream inflow conditions of the river channel mainly have the following two situations:

[0048] The first situation: There is a regulating reservoir upstream of the conventional weir dam. The overall flow rate over the weir can be controlled by adjusting the ecological flow rate, power generation flow rate, and irrigation flow rate discharged from the regulating reservoir. The water level above the weir is determined through the water level-flow rate relationship of the weir dam to calculate the flow rate entering the surfing device.

[0049] The second situation: If there is no reservoir to control the flow rate upstream of the weir dam, it is necessary to determine the river channel flow rate under different guarantee rates through hydrological analysis, and then determine the water level above the weir through the water level-flow rate relationship of the weir dam to calculate the flow rate entering the surfing device.

[0050] The hinge 20 is regulated by the control terminal 13 to regulate the inclination angle of the right side plate surface 202 of the deflector 5, so as to form a stable energy dissipation hydraulic jump in the stilling basin 8, dissipate the energy of the wavy hydraulic jump water body, reduce the kinetic energy of the water body, maintain the stability of the water surface in the rescue area. The water depth in the rescue area should be combined with the overall water level-discharge relationship curve of the river channel and controlled within the safe water depth and flow velocity of the human body. When the water level and flow velocity in the rescue area deviate from the safe range, the system will automatically adjust the inclination angle of the right side plate surface 202 of the deflector 5. Moreover, the deflector 5 adjusts the water surface form, flow velocity, etc. by adjusting the angle, and can also indirectly adjust the surfing difficulty of the surfer. The surfing difficulty is greater for relatively rapid water flow and smaller for relatively gentle water flow, and the difficulty is reasonably adjusted according to the surfer's level.

[0051] In order to save energy and avoid excessive wear of equipment, the indoor surfing device usually has a certain opening time and closing and maintenance time. During the closing period, devices such as the deflector 5 will be closed, and the river channel weir 2 will also be closed to prevent the water flow from continuously scouring the flow channel and other equipment, causing excessive wear of the equipment. The internal environment of the river channel on the river channel pool 1 has a certain degree of uncontrollability, and it often contains garbage such as branches and plastics. Although there are usually certain water purification measures on the river channel to mainly filter the garbage in the river, it is difficult to clean up some fine garbage completely. When the river channel weir 2 is closed, the river channel pool will flow downward and accumulate these fine garbage outside the river channel weir 2, and personnel can clean it up to prevent the garbage accumulated outside from being washed down the dam body discharge channel 3 when the river channel weir 2 is suddenly opened, which will have a certain impact on the surfer. When personnel surf on the flow channel, they usually use a professional surfing skateboard on the dam body discharge channel 3. Due to the large water body scouring force, large flow rate and fast flow velocity, it is relatively difficult for beginners to maintain balance. The design of the grid plate 203 is laid on the discharge channel and fixed with bolts to prevent it from being washed away. On the one hand, when personnel fall from the skateboard, due to the interval design of the grid plate 203, its friction force is large, enabling personnel to maintain balance by themselves when falling on the skateboard and avoid being injured. On the other hand, when personnel fall, it can also prevent the conventional flow channel from being too smooth to borrow strength to get up. And when personnel's items, such as watches, fall, the grid plate 203 can intercept the falling objects to prevent the items from being washed down the river channel, which is convenient for later retrieval. At the same time, teaching personnel can stand on the grid plate 203 to teach personnel under the state of water flow scouring. In the conventional situation, due to the large water flow scouring force and the relatively smooth flow channel, teaching personnel cannot stand on the flow channel for detailed teaching, which affects the teaching effect.

[0052] The above embodiments and / or implementation manners are only used to illustrate the preferred embodiments and / or implementation manners for implementing the technology of the present invention, and do not impose any formal restrictions on the implementation manners of the technology of the present invention. Any person skilled in the art, without departing from the scope of the technical means disclosed in the content of the present invention, may make some modifications or changes to other equivalent embodiments, but should still be regarded as the same technology or embodiment as the present invention in essence.

[0053] Specific examples are used in this article to elaborate on the principles and implementation manners of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. The above are only the preferred implementation manners of the present application. It should be noted that due to the limited nature of written expression and the objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principles of the present application, several improvements, embellishments or changes can also be made, or the above technical features can be combined in an appropriate manner; these improvements, embellishments, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present application.

Claims

1. A surfing device based on a river weir dam, comprising a river channel pool (1) and a dam body discharge channel (3) cooperating with the river channel pool (1). It is characterized in that: A guide vane (5) is provided at the bottom end of the dam body discharge channel (3). A deep pool (6) is provided in the downstream direction of the guide vane (5). A tail water plate (7) is provided at an interval distance on one side of the deep pool (6) away from the guide vane (5). The guide vane (5) includes a left side plate surface (201) and a right side plate surface (202). The left side plate surface (201) and the right side plate surface (202) are connected by a hinge (20). One side of the top end of the dam body discharge channel (3) is arranged with a river channel pool (1). A river channel weir dam (2) is provided between the river channel pool (1) and the dam body discharge channel (3). The left side plate surface (201) of the guide vane (5) is fixedly connected to the bottom plate of the wave-making area. The left side plate surface (201) of the tail water plate (7) is fixedly connected to the bottom plate of the surfing area. The wave-making area includes the river channel pool (1), the river channel weir dam (2), the dam body discharge channel (3), the guide vane (5), and the deep pool (6). The surfing area includes the tail water plate (7) and the diving platform (4). The guide vane (5) has the same structure as the tail water plate (7). A diving platform (4) is provided on the side surfaces of the guide vane (5) and the tail water plate (7). A stilling basin (8) is provided in the downstream direction of the tail water plate (7) and the diving platform (4). A stilling basin end sill (9) is provided at the downstream end of the stilling basin (8). The dam body discharge channel (3) is arranged in the downstream direction of the river channel weir dam (2). The water body in the river channel pool (1) flows down along the dam body discharge channel (3) through the river channel weir dam (2), is picked out by the end guide vane (5) and passes through the deep pool (6), forming a wavy hydraulic jump.

2. The surfing device based on a river weir dam according to claim 1, characterized in that: The Froude number of the end cross-section of the dam body discharge channel (3) is calculated by the following formula: ; where v is the velocity of the discharged water flow, g is the acceleration due to gravity, and h is the water depth.

3. The surf device based on a river channel weir dam according to claim 1, characterized in that: A rescue pool is provided at a position adjacent to the stilling basin end sill (9). A rescue platform (11) is provided on one side of the rescue pool.

4. The surf device based on a river channel weir dam according to claim 3, characterized in that: A net (12) is provided on the transverse cross-section of the rescue pool. The net (12) is located at one end of the rescue pool away from the stilling basin end sill (9).

5. The surf device based on a river channel weir according to claim 3, wherein: A water level and velocity monitoring device (10) is provided between the stilling basin end sill (9) and the rescue platform (11).

6. The surf device based on a river weir according to claim 5, characterized in that: The water level and velocity monitoring device (10) is connected to a control terminal (13). The control terminal (13) is connected in parallel with the guide vane (5) and the tail water plate (7).

7. The surf device based on a river channel weir dam according to claim 1, characterized in that: Lattice plates (203) are arranged on the dam body discharge channel (3). The lattice plates (203) are box bodies in an array combination. One end of the box body is open and threaded through holes are provided at the bottom.

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