Surfing device based on river channel barrage

Abstract

The invention discloses a surfing device based on a riverway barrage, which is used for providing an ideal movement scene for surfing movement and belongs to the field of riverway landscapes and water sports. The device comprises a riverway water pool and a dam body discharge flow channel matched with the riverway water pool, a flow guide plate is arranged at the bottom end of the dam body discharge flow channel, and a deep water pool is arranged in the downstream direction of the flow guide plate; tail water plates are arranged on the side, away from the guide plate, of the deep pool at intervals. According to the device, ideal surfing conditions can be created in the downstream area of the dam body, and the problem that static display devices such as artificial waterfalls and landscape fountains are lack of interactivity and motility is effectively solved.

Description

Technical Field

[0001] The invention belongs to the field of river landscape and water sports, and in particular relates to a surfing device based on a river weir. 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 seaside areas with natural wave conditions. At present, 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 static displays and lack interactivity and movement. Especially in natural rivers with gentle slopes and small flows, it is difficult for the water flow to form effective waves or water 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, which can freely adjust the inclination angle and width of the surfing components by improving the existing indoor surfing system, as well as an intelligent indoor surfing system that can analyze surfing behavior by attaching motion detection sensors to the user and the surfboard. This patent still has room for improvement.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions 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 simply because they are described in the background technology section of the present application. Summary of the invention

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

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: A surfing device based on a river channel dam comprises a river channel pool and a dam body discharge flow channel matched with the river channel pool, a guide plate is arranged at the bottom end of the dam body discharge flow channel, a deep water pool is arranged downstream of the guide plate, and a tailwater plate is arranged at a distance away from the guide plate on one side of the deep water pool.

[0007] According to one embodiment of the present invention, a river pool is arranged on one side of the top of the dam body discharge channel, and a river weir is arranged between the river pool and the dam body discharge channel. The guide plate includes a left plate surface and a right plate surface, and the left plate surface and the right plate surface are connected by a hinge, and the guide plate and the tailwater plate have the same structure. A diving platform is arranged on the side of the guide plate and the tailwater plate, and a stilling pool is arranged in the downstream direction of the tailwater plate and the diving platform, and a stilling pool tail sill is arranged at the downstream end of the stilling pool. A rescue pool is arranged adjacent to the stilling pool tail sill, and a rescue platform is arranged on one side of the rescue pool. A blocking net is arranged on the transverse section of the rescue pool, and the blocking net is located at the end of the rescue pool away from the stilling pool tail sill. A water level and flow rate monitoring device is arranged between the stilling pool tail sill and the rescue platform. The water level and flow rate monitoring device is connected to a control terminal, and the control terminal is connected in parallel with the guide plate and the tailwater plate. A grating plate is arranged on the dam body discharge channel, and the grating plate is a box body of array combination, and one end of the box body is open and a threaded through hole is arranged at the bottom.

[0008] The device as a whole includes a wave-making area, a surfing area, an energy dissipation area and a rescue area. The wave-making area includes a river pool, a river weir, a dam body discharge channel, a guide plate and a deep pool; the surfing area includes a tailwater board and a diving platform; the energy dissipation area includes a stilling pool and a stilling pool tail sill; the rescue area includes a rescue platform, a barrier net, a water level and flow rate monitoring device and a control terminal.

[0009] The outside of the river channel weir is a river channel pool. A dam body spillway is set in the downstream direction of the river channel weir. The river channel pool flows down along the dam body spillway through the river channel weir, and is picked out by the end guide plate and passes through the deep water pool to form a wave-like water jump. The guide plate set at the end of the dam body spillway can adjust the angle of water flowing into the pool. The water inlet angles formed by guide plates at different angles are different. After setting the guide plate, the water surface shape, water depth and flow rate of the wave-like water jump can be more flexibly controlled to create different surfing scenes. A deep water pool is arranged behind the guide plate. The water body of the deep water pool will form a vertical clockwise reflux as the river channel pool is discharged, which helps to form larger waves. In order to create a wave-like water jump suitable for surfing, the water depth of the wave-like water jump should be greater than 0.3m, and the flow rate should be between 2~5m / s. An adjustable tailwater board is arranged at the end of the wave-like water jump to adjust the water depth and flow rate of the surfing area, and at the same time promote the water flow to form an energy dissipation water jump in the energy dissipation pool to maintain the stability of the water surface in the rescue area. The guide plate and the tailwater plate have the same structure. The left side of the guide plate is fixedly connected to the bottom plate of the wave-making area, and the left side of the tailwater plate is fixedly connected to the bottom plate of the surfing area. The rotation of the right side of the plate can be controlled by means of a motor controlling the rotation of the hinge.

[0010] Diving platforms are set on both sides of the wavy water jump; a tailwater board is set behind the wavy water jump, and the flow channel cross-section is widened at the same time. The water body is selected out through the tailwater board, and under the action of the tail sill of the energy dissipation pool, an energy dissipation water jump is formed in the energy dissipation pool; a rescue area is set up behind the water jump position and a water level and flow rate monitoring device, a rescue platform and a net are placed to ensure the safety of personnel.

[0011] In order to meet the needs of surfing, a water jump in the surfing area should be formed in the form of a series of gradually disappearing waves without obvious vortexes on the water surface. The key lies in controlling the Froude number at the end section of the dam body discharge channel. The calculation formula is as follows:

[0012] Where v is the velocity of the downstream water flow, g is the acceleration due to gravity (about 9.81 m / s²), and h is the depth of the water flow.

[0013] When the Froude number is between 1.0 and 1.7, the water flow can form a stable wavy water jump. In order to meet the above Froude number conditions, the slope of the dam body discharge channel should not be too steep, and the slope ratio should be controlled below 1:4. When the Froude number is met, the angle of the guide plate can be changed to change the angle of the inflow water flow into the pool to form wavy water jumps of different forms. At the same time, by adjusting the angle of the tail water board, the water depth of the wavy water jump is greater than 0.3m, and the flow rate is between 2~5m / s. Such a wavy water jump not only meets the surfing conditions, but also has good viewing and entertainment.

[0014] The wave-like water jump is an unfavorable flow state for the safety of the downstream river channel. Therefore, the water waves only need to be maintained in the surfing area. After entering the energy dissipation area, the wave-like water jump is made to disappear as much as possible through the energy dissipation pool water jump, ensuring that the water depth and flow rate in the rescue area and the downstream river channel meet the requirements of human safety and river channel safety. In order to ensure the stability of the water level in the rescue area and the safety of the downstream river channel, the energy dissipation pool and the tail sill of the energy dissipation pool are set at the downstream of the wave-like water jump. The water depth and flow rate at the tail water board are controlled by adjusting the right side board angle of the tail water board, and then an energy dissipation water jump is formed in the energy dissipation pool to dissipate the energy of the wave-like water jump water body, so as to reduce the residual kinetic energy after the water jump and protect the safety of the downstream river channel bank.

[0015] Preferably, the water depth in the rescue area should be between 0.8 and 1.2 m.

[0016] The flow rate entering the surfing device is controlled by the water level of the upstream river. According to the upstream flow conditions, it can be arranged in the entire section of the river or in a partial section of the river. The flow conditions of the upstream river are mainly the following two situations: The first case: A regulating reservoir is installed upstream of a conventional weir dam. The overall flow through the weir can be controlled by adjusting the ecological flow, power generation flow and irrigation flow discharged from the reservoir. The water level on the weir is determined by the relationship between the weir water level and flow, which is used to calculate the flow entering the surfing device.

[0017] The second situation: if there is no reservoir upstream of the weir to control the flow, it is necessary to determine the river flow under different guarantee rate conditions through hydrological analysis, and then determine the water level on the weir through the weir water level flow relationship to calculate the flow entering the surfing device.

[0018] The hinge is regulated by the control terminal to adjust the inclination angle of the right side of the guide plate, forming a stable energy dissipation water jump in the energy dissipation pool, dissipating the energy of the wavy water jump water body to reduce the kinetic energy of the water body and 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 and flow relationship curve of the river channel to control the safe water depth and flow rate for the human body. When the water level and flow rate in the rescue area deviate from the safe range, the system will automatically adjust the inclination angle of the right side of the guide plate.

[0019] In order to save energy and avoid excessive equipment wear, indoor surfing devices usually have a certain opening time and closing maintenance time. During the closing period, the guide plate and other equipment will be closed, and the river dam will also be closed to prevent the water from continuously scouring the flow channel and other equipment, causing excessive equipment wear. The river environment on the river pool is somewhat uncontrollable, and it is often mixed with branches, plastics and other garbage. Although there are usually certain water purification measures in the river, mainly filtering the garbage in the river, it is difficult to clean up some small garbage. When the river dam is closed, the river pool will accumulate these small garbage on the outside of the river dam when it flows downward. People can clean it up to avoid the garbage accumulated on the outside of the river dam being washed down the dam body discharge flow channel when the river dam is suddenly opened, causing a certain impact on surfers. When people surf on the flow channel, they usually use professional surfing skateboards on the dam body discharge flow channel. Due to the large water scouring force and flow rate, and the fast flow rate, it is difficult for novices to maintain balance. The design of the grating plate is laid on the discharge flow channel and fixed with bolts to prevent it from being washed off. On the one hand, when people fall from the skateboard, due to the interval design of the grating plate, its friction is large, so that people can keep their balance when falling on the skateboard to avoid falling. On the other hand, when people fall, it can also avoid the situation that the conventional flow channel is too smooth to get up. And when people's items, such as watches, fall, the grating plate can intercept the fallen objects to prevent the items from being washed down the river, which is convenient for later retrieval. At the same time, teaching staff can stand on the grating plate and teach people under the water scouring state. In the conventional situation, due to the large water scouring force and the relatively smooth flow channel, teaching staff cannot stand on the flow channel for detailed teaching, which affects the teaching effect.

[0020] Compared with the prior art, the present invention has the following beneficial effects: Avoid the garbage accumulated on the outside of the river dam from being washed down the dam body discharge channel when the river dam is suddenly opened, which may cause certain safety hazards to surfers. After setting up the guide plate, the water surface shape, water depth and flow rate of the wave-like water jump can be more flexibly controlled to create different surfing scenes. The water body of the deep pool will form a vertical clockwise reflux as the river pool is discharged, which helps to form larger waves. An adjustable tailwater board is arranged at the end of the wave-like water jump to adjust the water depth and flow rate of the surfing area, and at the same time promote the water flow to form an energy dissipation water jump in the energy dissipation pool to maintain the stability of the water surface in the rescue area. Through the energy dissipation pool water jump, the wave-like water jump is made to disappear as much as possible, ensuring that the water depth and flow rate in the rescue area and the downstream of the river meet the safety requirements of human body and river channel. Teaching staff can stand on the grating board and teach personnel under the state of water flow scouring. When personnel fall, it can also avoid the situation that the conventional flow channel is too smooth to get up. And when people's belongings, such as watches, fall, the grating plate can intercept the fallen objects, preventing the items from being washed into the river, making it easier to recover them later. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] Figure 1 It is a schematic diagram of a surfing device based on a river channel weir according to the present invention; Figure 2 It is a schematic diagram of the river channel weir scheme of the present invention; Figure 3 It is a schematic diagram of the lattice plate of the present invention; Figure 4 It is a schematic diagram of the structure of the guide plate and the tailwater plate of the present invention; Figure 5 A schematic diagram of the wave-shaped water jump control of the surfing device of the present invention; Figure 6 This is a schematic diagram of the control terminal connection of the present invention.

[0023] Figure numbers: 1- river pool; 2- river weir; 3- dam body discharge channel; 4- diving platform; 5- guide plate; 6- deep pool; 7- tailwater board; 8- energy dissipation pool; 9- tail sill of energy dissipation pool; 10- water level and flow rate monitoring device; 11- rescue platform; 12- blocking net; 13- control terminal; 20- hinge; 201- left side board; 202- right side board; 203- grating plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings 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.

[0025] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] Embodiment 1 See attached Figure 1-Figure 6 As shown, a surfing device based on a river channel dam comprises a river channel pool 1 and a dam body spillway 3 matched with the river channel pool 1, a guide plate 5 is arranged at the bottom end of the dam body spillway 3, a deep water pool 6 is arranged downstream of the guide plate 5, and a tailwater plate 7 is arranged at a distance away from the guide plate 5 on one side of the deep water pool 6.

[0027] A river pool 1 is arranged on one side of the top of the dam body spillway 3, and a river weir 2 is arranged between the river pool 1 and the dam body spillway 3. The guide plate 5 includes a left plate surface 201 and a right plate surface 202, and the left plate surface 201 and the right plate surface 202 are connected by a hinge 20. The guide plate 5 has the same structure as the tailwater plate 7. A diving platform 4 is arranged on the side of the guide plate 5 and the tailwater plate 7, and an energy dissipation pool 8 is arranged in the downstream direction of the tailwater plate 7 and the diving platform 4, and an energy dissipation pool tail sill 9 is arranged at the downstream end of the energy dissipation pool 8. A rescue pool is arranged adjacent to the energy dissipation pool tail sill 9, and a rescue platform 11 is arranged on one side of the rescue pool. A blocking net 12 is arranged on the transverse section of the rescue pool, and the blocking net 12 is located at the end of the rescue pool away from the energy dissipation pool tail sill 9. A water level and flow rate monitoring device 10 is arranged between the energy dissipation pool tail sill 9 and the rescue platform 11. The water level and flow rate 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 tailwater plate 7. The dam body spillway 3 is provided with a grating plate 203 , which is a box body in an array combination, with one end of the box body being open and a threaded through hole being provided at the bottom.

[0028] The device as a whole includes a wave-making area, a surfing area, an energy dissipation area and a rescue area. The wave-making area includes a river pool 1, a river weir 2, a dam body discharge channel 3, a guide plate 5, and a deep water pool 6; the surfing area includes a tailwater board 7 and a diving platform 4; the energy dissipation area includes a stilling pool 8 and a stilling pool tail sill 9; the rescue area includes a rescue platform 11, a barrier net 12, a water level and flow rate monitoring device 10, and a control terminal 13.

[0029] The outside of the river channel weir 2 is a river channel pool 1. A dam body spillway 3 is provided in the downstream direction of the river channel weir 2. The river channel pool 1 flows down along the dam body spillway 3 through the river channel weir 2, and is picked out through the end guide plate 5 and passes through the deep water pool 6 to form a wave-like water jump. The guide plate 5 provided at the end of the dam body spillway 3 can adjust the angle of water flowing into the pool. The guide plates 5 at different angles form different water entry angles. After the guide plates 5 are provided, the water surface shape, water depth and flow rate of the wave-like water jump can be more flexibly controlled to create different surfing scenes. A deep water pool 6 is arranged behind the guide plate 5. The water in the deep water pool 6 will form a vertical clockwise reflux as the river channel pool is discharged, which helps to form larger waves. In order to create a wave-shaped water jump suitable for surfing, the water depth at the head of the wave-shaped water jump should be greater than 0.3m, and the flow velocity should be between 2 and 5m / s. An adjustable tailwater board 7 is arranged at the end of the wave-shaped water jump to adjust the water depth and flow velocity in the surfing area, and at the same time promote the water flow to form an energy dissipation water jump in the energy dissipation pool 8 to maintain the stability of the water surface in the rescue area. The guide plate 5 and the tailwater board 7 have the same structure. The left side board surface 201 of the guide plate 5 is fixedly connected to the bottom plate of the wave-making area, and the left side board surface 201 of the tailwater board 7 is fixedly connected to the bottom plate of the surfing area. The rotation of the right side board surface 202 on it can be controlled by a motor to control the rotation of the hinge 20.

[0030] Diving platforms 4 are set on both sides of the wavy water jump; a tailwater board 7 is set behind the wavy water jump, and the flow channel section is widened at the same time. The water body is selected out through the tailwater board 7, and under the action of the tail sill 9 of the energy dissipation pool, an energy dissipation water jump is formed in the energy dissipation pool 8; a rescue area is set behind the water jump position and a water level and flow rate monitoring device 10, a rescue platform 11 and a blocking net 12 are placed to ensure the safety of personnel.

[0031] In order to meet the needs of surfing, a water jump in the surfing area should be formed in the form of a series of gradually disappearing waves without obvious vortexes on the water surface. The key lies in controlling the Froude number of the end section of the dam body discharge channel 3, and its calculation formula is as follows:

[0032] Where v is the velocity of the downstream water flow, g is the acceleration due to gravity (about 9.81 m / s²), and h is the depth of the water flow.

[0033] When the Froude number is between 1.0 and 1.7, the water flow can form a stable wavy water jump. In order to meet the above Froude number conditions, the slope of the dam body discharge channel 3 should not be too steep, and the slope ratio should be controlled below 1:4. When the Froude number is met, the angle of the guide plate 5 can be changed to change the angle of the inflow water flow into the pool to form wavy water jumps of different forms. At the same time, by adjusting the angle of the tail water plate 7, the water depth of the head of the wavy water jump is greater than 0.3m, and the flow rate is between 2~5m / s. Such a wavy water jump not only meets the surfing conditions, but also has good viewing and entertainment.

[0034] The wave-like water jump is an unfavorable flow state for the safety of the downstream river channel. Therefore, the water waves only need to be maintained in the surfing area. After entering the energy dissipation area, the wave-like water jump is made to disappear as much as possible through the energy dissipation pool 8 water jump, ensuring that the water depth and flow rate in the rescue area and the downstream of the river channel meet the requirements of human safety and river channel safety. In order to ensure the stability of the water level in the rescue area and the safety of the downstream river channel, the energy dissipation pool 8 and the energy dissipation pool tail sill 9 are set at the downstream position of the wave-like water jump. The water depth and flow rate at the tailwater board 7 are controlled by adjusting the angle of the right side board surface 202 of the tailwater board 7, and then an energy dissipation water jump is formed in the energy dissipation pool 8, and the wave-like water jump water body is dissipated to reduce the residual kinetic energy after the water jump, and protect the safety of the downstream river channel bank.

[0035] Preferably, the water depth in the rescue area should be between 0.8 and 1.2 m.

[0036] The flow rate entering the surfing device is controlled by the water level of the upstream river. According to the upstream flow conditions, it can be arranged in the entire section of the river or in a partial section of the river. The flow conditions of the upstream river are mainly the following two situations: The first case: A regulating reservoir is installed upstream of a conventional weir dam. The overall flow through the weir can be controlled by adjusting the ecological flow, power generation flow and irrigation flow discharged from the reservoir. The water level on the weir is determined by the relationship between the weir water level and flow, which is used to calculate the flow entering the surfing device.

[0037] The second situation: if there is no reservoir upstream of the weir to control the flow, it is necessary to determine the river flow under different guarantee rate conditions through hydrological analysis, and then determine the water level on the weir through the weir water level flow relationship to calculate the flow entering the surfing device.

[0038] The hinge 20 is regulated by the control terminal 13 to regulate the inclination angle of the right side surface 202 of the guide plate 5, so as to form a stable energy dissipation water jump in the energy dissipation pool 8, dissipate the energy of the wavy water jump water body, reduce the kinetic energy of the water body, and 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 and flow relationship curve of the river channel to control the safe water depth and flow rate for the human body. When the water level and flow rate in the rescue area deviate from the safe range, the system will automatically adjust the inclination angle of the right side surface 202 of the guide plate 5. In addition, the guide plate 5 can adjust the water surface shape, flow rate, etc. by adjusting the angle, and can also indirectly adjust the surfing difficulty of the surfer. Surfing in a more turbulent water flow is more difficult, and surfing in a more gentle water flow is less difficult. The difficulty can be reasonably adjusted according to the different levels of the surfers.

[0039] In order to save energy and avoid excessive equipment wear, indoor surfing devices usually have a certain opening time and closing maintenance time. During the closing period, the guide plate 5 and other equipment will be closed, and the river dam 2 will also be closed to prevent the water flow from continuously scouring the flow channel and other equipment, causing excessive equipment wear. The river environment on the river pool 1 is somewhat uncontrollable, and it is often mixed with branches, plastics and other garbage. Although there are usually certain water purification measures on the river, mainly filtering garbage in the river, it is difficult to clean up some small garbage. When the river dam 2 is closed, the river pool will accumulate these small garbage on the outside of the river dam 2 when it flows downward. People can clean it up to avoid the garbage accumulated on the outside of the river dam 2 being washed down the dam body discharge flow channel 3 when the river dam 2 is suddenly opened, causing a certain impact on the surfers. When people surf on the flow channel, they usually use professional surfing skateboards on the dam body discharge flow channel 3. Due to the large water scouring force and flow rate, the flow rate is fast, and it is difficult for novices to keep balance. The design of the grid plate 203 is laid on the discharge flow channel and fixed with bolts to prevent it from being washed off. On the one hand, when people fall from the skateboard, due to the interval design of the grid plate 203, its friction is large, so that people can keep balance by themselves when falling on the skateboard to avoid falling. On the other hand, when people fall, it can also avoid the situation that the conventional flow channel is too smooth and cannot be used to get up. And when people's items, such as watches, fall, the grid plate 203 can intercept the falling objects, prevent the items from being washed down the river, and facilitate later retrieval. At the same time, the teaching staff can stand on the grid plate 203 and teach the staff under the water flow scouring state. In the conventional situation, due to the large water flow scouring force and the relatively smooth flow channel, the teaching staff cannot stand on the flow channel for detailed teaching, which affects the teaching effect.

[0040] The above embodiments and / or implementation methods are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to impose any form of limitation on the implementation methods of the technology of the present invention. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention. This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above are only preferred implementation methods of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A surfing device based on a river channel dam, comprising a river channel pool (1) and a dam body discharge channel (3) cooperating with the river channel pool (1), Features: A guide plate (5) is provided at the bottom end of the dam body discharge channel (3), a deep water pool (6) is provided downstream of the guide plate (5), and a tailwater plate (7) is provided at a distance on a side of the deep water pool (6) away from the guide plate (5).

2. A surfing device based on a river channel weir according to claim 1, characterized in that: A river pool (1) is arranged at one side of the top end of the dam body spillway (3), and a river weir (2) is provided between the river pool (1) and the dam body spillway (3).

3. A surfing device based on a river channel weir according to claim 1, characterized in that: The guide plate (5) comprises a left side plate surface (201) and a right side plate surface (202), and the left side plate surface (201) and the right side plate surface (202) are connected via a hinge (20).

4. A surfing device based on a river channel weir according to claim 3, characterized in that: The guide plate (5) and the tailwater plate (7) have the same structure.

5. A surfing device based on a river channel weir according to claim 1, characterized in that: A diving platform (4) is provided on the side of the guide plate (5) and the tailwater plate (7), an energy dissipation pool (8) is provided downstream of the tailwater plate (7) and the diving platform (4), and an energy dissipation pool tail sill (9) is provided at the downstream end of the energy dissipation pool (8).

6. A surfing device based on a river channel weir according to claim 5, characterized in that: A rescue pool is provided adjacent to the tail sill (9) of the energy dissipation pool, and a rescue platform (11) is provided on one side of the rescue pool.

7. A surfing device based on a river channel weir according to claim 6, characterized in that: A blocking net (12) is provided on the transverse cross section of the rescue pool, and the blocking net (12) is located at an end of the rescue pool away from the tail sill (9) of the energy dissipation pool.

8. A surfing device based on a river channel weir according to claim 6, characterized in that: A water level and flow rate monitoring device (10) is provided between the tail sill (9) of the energy dissipation pool and the rescue platform (11).

9. A surfing device based on a river channel weir according to claim 8, characterized in that: The water level and flow rate monitoring device (10) is connected to a control terminal (13), and the control terminal (13) is connected in parallel to the guide plate (5) and the tailwater plate (7).

10. A surfing device based on a river channel weir according to claim 1, characterized in that: The dam body spillway (3) is provided with a grating plate (203), the grating plate (203) being a box body in an array combination, one end of the box body being open and the bottom of the box body being provided with a threaded through hole.

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