CN104436604B - Land dragon boat training device - Google Patents

Abstract

A land dragon boat training device, including oars, a water accelerator, a console, an electronic display device, a water tank, a photoelectric sensor, and an intermediate channel; The driving force flowing in the circulating waterway; the left technical signboard is the technical scale for the team members to hold the paddle in the water channel for sports training; Scale, the right technical sign board is fixedly installed in the corresponding position in the middle of the edge on the outer plate of the right water tank; the photoelectric sensor includes a transmitter, a receiver and a detection circuit; the electronic display device is two electronic display devices on the left and right , the electronic display device is to count, display and record the number of times the team members paddle, and the electronic display device includes a display screen, a processor and a chip; the console contains two electronic display devices and three button switches.

Description

land dragon boat trainer

technical field

The invention relates to a physical training device, in particular to a training device for dragon boat rowing players' rowing movement skills training.

Background technique

The patent application number is 201220163158.7, and the utility model name is "Land Dragon Boat", which discloses a land dragon boat, including a frame (1), and a power mechanism (2) is arranged symmetrically on both sides of the frame (1), and the power mechanism (2 ) is connected with the wheel (4) at the corresponding position via the main shaft (3), the power mechanism (2) includes a rocker (5), and the rocker (5) is connected with a transmission mechanism (6), and the transmission mechanism (6) is Main shaft (3) is connected with wheel (4). The utility model can realize that the dragon boat runs on the land, and at the same time, like the traditional dragon boat, players need to work together and cooperate with each other, and can help the traditional culture to be further developed.

The patent application number is 201320439654.5, and the utility model name is "a land dragon boat", which discloses a land dragon boat, including a boat body, paddles, and seats, and is characterized in that: universal wheels are arranged on both sides of the bottom of the boat body , There is a brake device on the universal wheel. The utility model realizes the running of the dragon boat on the land by propping the paddle on the ground like skating, while maintaining the fun of the traditional dragon boat.

In the disclosed patent technology, wheels are provided on both sides of the bottom of the land dragon boat body, with brake devices, and the movement of the oars drives the wheels to roll upwards, so that the dragon boat can run on land. The present invention includes the front water tank, the rear water tank, the middle waterway, the left outer circulation waterway and the right outer circulation waterway. The relationship between them is interlinked. The water flows in the middle of the circulation waterway. The dragon boat players row their hand-held oars in the left or right outer circulation waterway to paddle against the current to achieve the purpose of action technique training.

Contents of the invention

The purpose of the present invention is to carry out a series of action technique training on land for the rowers of dragon boat rowers, and is a professional training device which is easy to operate and highly interesting.

In order to achieve the above object, the present invention adopts the following technical solutions

A land dragon boat trainer, comprising oars, a water accelerator, a console, an electronic display device, a left tank outer panel, a left tank inner panel, a right tank outer panel, a right tank inner panel, a tank front end baffle, and a water tank rear end baffle , Decorative panel on the left side of the front compartment, Decorative panel on the right side of the front compartment, Left photoelectric sensor, Right photoelectric sensor, Front partition, Left technical sign board, Right technical sign board, Left water shield, Right water shield, Middle waterway, upper plate of middle waterway, left side plate of middle waterway, right side plate of middle waterway, front mouth plate of middle waterway, front mouth of middle waterway, rear mouth of middle waterway, base, front water tank, rear water tank, left outer circulation waterway . The right outer circulating waterway, characterized in that: the water flow accelerator is connected to the front mouth of the middle waterway, and the water flow accelerator is the driving force for water to flow in the circulating waterway; the front water tank is a closed water tank, and the front water tank The tank communicates with the left outer circulation waterway and the right outer circulation waterway; the rear water tank is a closed water tank, and the rear water tank communicates with the left outer circulation waterway and the right outer circulation waterway; the front mouth of the middle waterway passes through the front mouth of the middle waterway The plate is connected with the water flow accelerator, and the rear mouth of the middle waterway communicates with the rear water tank; the left outer circulation waterway belongs to the open channel waterway, and the left outer circulation waterway communicates with the front water tank and the rear water tank; the right outer circulation waterway communicates with the front water tank. The water tank and the rear water tank are connected; the front water tank, the rear water tank, the middle waterway, the left outer circulation waterway and the right outer circulation waterway are connected to each other; The inner side plate of the water tank, the front end plate of the water tank, the rear end plate of the water tank, the outer side plate of the left water tank and the base; The baffle plate, the outer plate of the right water tank and the base; the left technical marking plate is the technical scale for the team members to paddle with their left hands in the water channel for exercise training, and the left technical marking plate is fixedly installed in the middle of the edge of the outer plate of the left water tank Corresponding place; the right side technical sign board is the technical scale for the team members to hold the paddle in the waterway for sports training, and the right side technical sign board is fixedly installed at the corresponding position in the middle of the edge on the outer plate of the right water tank; the left photoelectric sensor It is composed of a transmitter, a receiver and a detection circuit, installed at the right angle corresponding to the front end of the left technical sign board, and connected to the corresponding electronic display device in the console through a power line; the right photoelectric sensor is composed of a transmitter, a receiver and a The detection circuit is composed of a detection circuit, which is installed at the right angle corresponding to the front end of the technical sign board on the right side, and is connected with the corresponding electronic display device in the console through the power line; the electronic display device is two electronic display devices on the left and right, and the electronic display device is Count, display, and record the number of oars of the team members. The electronic display device is composed of a display screen, a processor and a chip, and is installed on both sides of the button switch on the console; the console contains two electronic display devices and Three push button switches.

According to the land dragon boat training device, it is characterized in that: the base is shuttle-shaped.

According to the land dragon boat trainer, it is characterized in that: the water flow accelerator includes an electric water pump and a frequency converter.

According to the land dragon boat trainer, it is characterized in that: the button switch is three buttons of water flow low speed gear, water flow medium speed gear, and water flow high speed gear; the water flow low speed gear is 0.5m/s, and the water flow medium speed gear The gear is 1m/s, and the high speed gear of the water flow is 1.5m/s.

According to the land dragon boat training device, it is characterized in that: the middle waterway is composed of a right side board of the middle waterway, a left side board of the middle waterway, an upper board of the middle waterway and a base.

According to the land dragon boat training device, it is characterized in that: the left technical signboard is marked with the angle mark of the paddle entering the water and five vertical lines, the angle is between 80° and 90°, and the five vertical lines The distance between them is 200mm, and the distance between the five vertical lines is determined according to the technical requirements of the dragon boat rowers.

According to the land dragon boat training device, it is characterized in that: the left photoelectric sensor includes a transmitter, a receiver and a detection circuit.

According to the land dragon boat training device, it is characterized in that: the electronic display device includes a display screen, a processor and a chip.

Description of drawings

Fig. 1 is the general schematic diagram of land dragon boat trainer;

Figure 2 is a schematic diagram of the middle waterway;

Fig. 3 is a schematic diagram of the outer circulation waterway;

Fig. 4 is the schematic diagram of the outer circulation water channel with the cover;

Fig. 5 is the schematic diagram of the dragon boat rower action technique training system containing the right water flap;

Fig. 6 is the schematic diagram of the dragon boat rower action technique training system containing the left water flap;

Figure 7 is a schematic diagram of the console.

In the attached drawings: 1. Base; 2. Front tank cover; 3. Left tank outer panel; 4. Water flow accelerator; 5. Right tank outer panel; 6. Front tank upper cover; 8. Decorative panel on the left side of the front compartment; 9. Front baffle of the water tank; 10. Console; 11. Gate I; 12. Gate groove I; 13. Left photoelectric sensor; 14. Right photoelectric sensor; 15. Inner panel of the right water tank ;16. Front partition; 17. Left technical signboard; 18. Right technical signboard; 19. Gate groove II; 20. Gate II; 21. Left water retaining plate; 22. Right water retaining plate; 23 24. Rear water tank cover; 25. Rear baffle plate of the water tank; 26. Upper plate of the middle water channel; 27. Gate groove III; 28. Gate III; 29. Seat board; ;31, the left side plate of the middle waterway; 32, the right side plate of the middle waterway; 33, the front mouth plate of the middle waterway; 34, the gate slot IV; 35, the gate IV; 36, the power line; 37, the electronic display device; Switch; 39. Power cord plug; 40. Paddle; 41. Rear water tank; 42. Middle waterway; 43. Rear mouth of middle waterway; 44. Right outer circulation waterway; 45. Right sink; 46. Left outer circulation waterway; 47 , the left sink; 48, the front mouth of the middle channel; 49, the front water tank.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

A land dragon boat training device, as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, and Figure 7, which includes: a base 1, a front water tank cover 2, a left tank outer plate 3, Water flow accelerator 4, right water tank outer panel 5, front compartment upper cover 6, front compartment right decorative panel 7, front compartment left decorative panel 8, sink front baffle 9, console 10, gate I11, gate slot I12, left Photoelectric sensor 13, right photoelectric sensor 14, right water tank inner panel 15, front partition 16, left technical indicator panel 17, right technical indicator panel 18, gate slot II 19, gate II 20, left water barrier 21, right barrier Water board 22, rear tank upper cover 23, rear tank cover 24, water tank rear end baffle plate 25, middle channel upper plate 26, gate groove III 27, gate III 28, seat board 29, left tank inner panel 30, left side of the intermediate channel Plate 31, the right side plate 32 of the middle waterway, the front mouth plate 33 of the middle waterway, the gate slot IV 34, the gate IV 35, the power cord 36, the electronic display device 37, the button switch 38, the power cord plug 39, the paddle 40, the rear water tank 41, Middle waterway 42, middle waterway rear mouth 43, right outer circulation waterway 44, right water tank 45, left outer circulation waterway 46, left water tank 47, middle waterway front mouth 48, front water tank 49.

Assembly relationship

A terrestrial dragon boat trainer, the base 1 is fixedly installed on both sides of the central axis of the middle waterway right side plate 32, the middle waterway left side plate 31, the base 1 is shuttle-shaped, and the middle waterway right side plate 32 is rectangular plate-shaped, The left side plate 31 of the middle waterway is a rectangular plate; the front mouth plate 33 of the middle waterway is fixedly installed on the front end and the base 1 of the right side plate 32 of the middle waterway, the left side plate 31 of the middle waterway, and the front mouth plate 33 of the middle waterway It is in the form of a hollow circular plate on the outside; the water flow accelerator 4 is sealed and connected with the front mouth plate 33 of the middle channel, and the water flow accelerator 4 includes an electric water pump and a frequency converter. The water flow rate of the electric water pump is 600m/h. It is used to control the speed of the water pump motor; the upper plate 26 of the middle water channel is fixedly installed on the right side plate 32 of the middle water channel and the left side plate 31 of the middle water channel, and the upper plate 26 of the middle water channel is in the shape of a rectangular plate; at this time, the The middle waterway 42 is a closed waterway, and the middle waterway belongs to the underdrain waterway; the right water tank outer plate 5 and the left water tank outer plate 3 are fixedly installed on both sides of the base 1, and the right water tank outer plate 5 is Convex plate shape, the left water tank outer plate 3 is a convex plate shape; the gate groove I12 is fixedly installed on the right side plate 32 of the middle water channel, the side corresponding to the front end of the right water tank outer plate 5 and the corresponding position on the front right side of the base 1 , the gate groove I12 is a groove frame containing a leather pad; the gate groove II19 is fixedly installed on the right side plate 32 of the middle waterway, the corresponding position on the side of the rear end of the outer plate 5 of the right water tank and the corresponding position on the rear right side of the base 1. The gate groove II19 is a groove frame containing a leather pad; the gate groove III27 is fixedly installed on the left side plate 31 of the middle water channel, the corresponding position on the side of the rear end of the left side plate 3 of the left water tank, and the corresponding position on the rear left side of the base 1. The gate groove III27 It is a groove frame containing a leather pad; the gate groove IV34 is fixedly installed on the left side plate 31 of the middle waterway, the corresponding position on the side of the front end of the left side plate 3 of the left water tank, and the corresponding position on the left side of the front of the base 1. The gate groove IV34 is a The groove frame of the leather pad; the front water tank cover 2 is fixedly installed on the front end of the base 1, and is connected with the front ends of the right water tank outer plate 5 and the left water tank outer plate 3. The front water tank cover 2 is in the shape of a shell; Canopy cover 24 is fixedly installed on the rear end of base 1, is connected with the rear end seal of right water tank outer plate 5 and left water tank outer plate 3, and described rear water tank cover 24 is shell shape; Right water tank inner plate 15 is fixedly installed on On the right side of the upper plate 26 of the middle waterway, the inner side plate 15 of the right water tank is a rectangular plate; the inner side plate 30 of the left water tank is fixedly installed on the left side of the upper plate 26 of the middle waterway, and the inner side plate 30 of the left water tank is a rectangular plate shape; the front end baffle plate 9 of the water tank is fixedly installed on the front end of the right water tank inner plate 15, the left water tank inner plate 30 and the left vertical stroke of the right water tank outer plate 5, the left water tank outer plate 3 convex font upper half, the water tank The front end baffle plate 9 is a rectangular plate; the water tank rear end baffle plate 25 is fixedly installed on the rear end of the right water tank inner plate 15, the left water tank inner plate 30 and the right water tank outer plate 5, the left water tank outer plate 3 convex font upper half. Right side vertical stroke place, described tank rear end baffle plate 25 is rectangular plate shape, and at this moment, just complete It has become the combination of the left outer circulation waterway 46 and the right outer circulation waterway 44, that is, two water tanks on the left and right; the left outer circulation waterway 46 is a left water tank 47, and the left outer circulation waterway 46 belongs to an open channel waterway; the right outer circulation waterway The water channel 44 is a right water tank 45, and the right outer circulation water channel 44 belongs to an open channel water channel; the front storehouse upper cover 6 is fixedly installed on the left horizontal part of the convex-shaped middle part of the right water tank outer plate 5 and the left water tank outer plate 3 , and the front end of the front water tank cover 2 and the middle waterway upper plate 26 are sealed and connected, and the front tank upper cover 6 is a concave shape; Above the right side horizontal stroke of the convex middle part, it is connected with the rear end of the rear water tank cover 24 and the middle channel upper plate 26. The front water tank 49 and the rear water tank 41 have completed the formation of the entire water circulation system; the front water tank 49 is a closed water tank that communicates with the left outer circulation water channel 46 and the right outer circulation water channel 44, and the rear water tank 41 The closed water tank communicates with the left outer circulation waterway 46 and the right outer circulation waterway 44; the front water tank 49, the rear water tank 41, the middle waterway 42, the left outer circulation waterway 46, and the right outer circulation waterway 44 communicate with each other The water level in the left outer circulation waterway 46 and the right outer circulation waterway 44 is higher than the water level in the front water storehouse 49, the rear water storehouse 41 and the middle waterway 42, the water level in the front water storehouse 49, the back water storehouse 41, the middle waterway 42 On the same horizontal plane; the seat board 29 is horizontally and fixedly installed at the rear ends corresponding to the right water tank inner board 15 and the left water tank inner board 30, and the seat board 29 is a rectangular plate; the front row dividing plate 16 is vertically fixedly installed on the right side The inner side plate 15 of the water tank and the inner side plate 30 of the left water tank correspond to each other in the middle, and the lower end is connected with the upper plate 26 of the middle channel, and the front partition 16 is in the shape of a rectangular plate; , the bottom is connected with the rear end of the front compartment upper cover 6, and the water flow accelerator 4 is connected with the console 10 through the power cord 36. The console 10 contains an electronic display device 37 and a button switch 38, and the button switch 38 refers to the flow of water. Three buttons such as low speed gear, medium speed gear of water flow, and high speed gear of water flow, the low speed gear of water flow is 0.5m/s, the medium speed gear of water flow is 1m/s, and the high speed gear of water flow is 1.5m/s, so Said water velocity is set according to the average flow velocity of the water in the Yellow River Basin and training purpose; It is beautifully decorated; the decorative panel 8 on the left side of the front compartment is vertically fixedly installed on the upper edge of the left side of the upper cover 6 of the front compartment, and the decorative panel 8 on the left side of the front compartment is beautifully decorated; the right water retaining plate 22 is fixedly installed on the The corresponding place of the right water tank outer plate 5, the right water tank inner plate 15, the water tank rear end baffle plate 25 and the front storehouse right side decorative plate 7, the described right water retaining plate 22 is like the wings of an airplane, and the included angle with the horizontal plane is 60°, to prevent the water from splashing out when the team members row the hand-held paddle 40 to train in the waterway, and play the role of blocking water and being beautiful; the technical sign board on the right 18 is fixedly installed in the corresponding position in the middle of the upper edge of the right water tank outer plate 5. The right technical sign board 18 is the technical scale for the team members to row and hold the oar 40 in the waterway for exercise training. The front end of the right technical sign board 18 contains The angle mark of the oar 40 entering the water and the five vertical lines on the signboard, the angle is between 80° and 90°, and the distance between the five vertical lines is 200mm, which is designed according to the technical requirements of the dragon boat rowers. The left water baffle 21 is fixedly installed in the corresponding place of the left water tank inner board 30, the left water tank outer board 3, the water tank rear end baffle 25 and the left side decoration board 8 of the front storehouse, and the left water baffle 21 is with The included angle of the horizontal plane is 60°, which prevents the water in the water channel from splashing outwards, which is water-repelling and beautiful; the left technical marking plate 17 is fixedly installed in the corresponding place in the middle of the upper edge of the left side plate 3 of the left water tank, and the left technical marking The board 17 is the technical scale for the players to hold the oar 40 in the water channel for their left rowing. The front end of the left technical marking board 17 includes the angle mark of the paddle 40 entering the water and five vertical lines on the marking board. The angle is 80° To 90°, the distance between the five vertical lines is 200mm, which is determined according to the technical requirements of the dragon boat rowers; the gate I11 is inserted into the gate groove I12, and the gate I11 and the gate groove I12 are pushed and pulled. The gate I11 is a rectangular plate; the gate II20 is inserted into the gate groove II19, and the gate II20 and the gate groove II19 are a push-pull fit, and the gate II20 is a rectangular plate; the gate III28 is inserted into the gate groove III27, and the gate III28 and the gate Slot III27 is a push-pull fit, the gate III28 is a rectangular plate; gate IV35 is inserted into the gate groove IV34, and the gate IV35 and gate groove IV34 are push-pull fit, and the gate IV35 is a rectangular plate; the left photoelectric sensor 13 is fixedly installed on The right-angled front end of the left technical sign board 17 is connected to the console 10 by a power cord 36, and the left photoelectric sensor 13 is made up of a transmitter, a receiver and a detection circuit; the right photoelectric sensor 14 is fixedly installed on the right technical The right-angled front end of the sign board 18 is connected to the console 10 by a power cord 36. At this time, a photoelectric sensor system is formed. The right photoelectric sensor 14 is made up of a transmitter, a receiver and a detection circuit. The console 10 is to contain the electronic display device 37 that records the incoming data of the left photoelectric sensor 13 and the right photoelectric sensor 14. The electronic display device 37 is made up of a display screen, a processor and a chip. The both sides of button switch 38 on platform 10; At this moment, just finished the installation of whole land dragon boat trainer.

The front water tank 49 communicates with the left outer circulation water channel 46 and the right outer circulation water channel 44. No gap sealing structure;

The rear water tank 41 communicates with the left outer circulation water channel 46, the right outer circulation water channel 44 and the middle water channel rear mouth 43. The rear water tank 41 is composed of the rear water tank cover 24, the rear tank upper cover 23, the left water tank outer plate 3, and the right water tank outside Plate 5 and base 1 are formed without gap sealing;

The middle waterway 42 is composed of the right side plate 32 of the middle waterway, the left side plate 31 of the middle waterway, the upper plate 26 of the middle waterway and the base 1 without gap sealing. The middle waterway 42 belongs to the underdrain waterway. Connected, the water flow accelerator 4 is located in the front water tank 49, and is sealed and connected with the front mouth plate 33 of the middle water channel, and the rear mouth 43 of the middle water channel communicates with the rear water tank 41;

The left outer circulation waterway 46 communicates with the front water tank 49, the rear water tank 41 and the middle waterway rear mouth 43. The left outer circulation waterway 46 is a left water tank 47. Plate 30, tank front baffle 9, tank rear baffle 25, left side panel 3 of the tank and base 1 are formed, and the left outer circulation water channel 46 belongs to the open channel water channel;

The right outer circulation water channel 44 communicates with the front water tank 49, the rear water tank 41 and the middle water channel rear mouth 43, and the right outer circulation water channel 44 is composed of the middle water channel right side plate 32, the right water tank inner side plate 15, the water tank front baffle plate 9, the water tank The rear end baffle plate 25, the right water tank outer plate 5 and the base 1 constitute, the right outer circulation water channel 44 belongs to the open channel water channel, and the right outer circulation water channel 44 is the right water tank 45.

Advantages and effects of the present invention

1. The land dragon boat trainer of the present invention has a reasonable overall structure design, bright and smooth appearance, good visual effect, and can improve the excitability of trainers during the training process, thereby better improving their training efficiency.

2. The land dragon boat trainer is simple and convenient to operate, free from constraints and influences of environmental conditions, and can greatly reduce training costs.

3. Strong security. Whether it is for beginners, enthusiasts or professional players, the safety factor is high, and the hidden danger of unsafe training in the lake is avoided.

4. The training features are diversified, highly targeted, and professional training is highly technical. It is mainly aimed at professional rowers or dragon boat enthusiasts of dragon boat rowing.

① On land, beginners or professional dragon boat rowers can practice a series of movement skills such as entering and pulling water according to the markings on the left or right technical marking board. The best angle for the trainer to enter the water with the paddle is between 80° and 90°, and the best distance for pulling the water is 1 meter to 1.2 meters; The five vertical lines on the marking board are continuous and corresponding to parallel, so as to better strengthen the rowing skills of the players.

②It can simulate the whole process of dragon boat competition, and provide a virtual environment for real competition for the trainers of dragon boat rowers.

③Because the water flow speed in this trainer can be changed at any time through the water flow control system, the rower's paddling force in the outer circulation water channel will also change accordingly, just like the natural state of rivers and lakes, so that the trainer can get closer to the water during the training process. The actual competition technology is convenient to improve the athletic ability of the dragon boat rowers on the actual competition venue. Intensive simulation training can be carried out according to the technical action requirements of the actual dragon boat competition, and the relationship between paddle frequency and stroke distance in different stages can be improved, that is, the relationship between paddle frequency and stroke distance in the four stages of departure, acceleration, midway, and sprint , That is to say, control the paddle frequency through the photoelectric sensor system, and control the stroke distance through the technical indicator board, so as to further improve the relationship between the paddle frequency and stroke distance on different stages.

④ It is also possible to carry out single-stage technical intensive training for the four stages of dragon boat sports, namely, sailing, acceleration, midway, and sprint, so as to improve the technical ability of rowers in each stage. That is to say, when sailing, the blade enters the deepest water, and the stroke distance is long; when accelerating and sprinting, the paddle frequency is fast, and the stroke distance is short;

⑤It can improve the stability of the rowing technical chain, which is conducive to strengthening the rhythm of the dragon boat rowers' movements, and improving the relationship between entering the water, pulling the paddle, exiting the water and moving the paddle in the air.

⑥It can be better trained to improve the explosive power, durability of strength and coordination of exertion of dragon boat rowers.

5. During the training process, the number of rowing by the trainer is displayed on the display screen through the work of the photoelectric sensor and the electronic display device, and the displayed data can be used as an important scientific basis for formulating dragon boat sports training plans in the future.

Design principle of the present invention

According to fluid mechanics, use the water level of the left and right water tanks to be higher than the water level of the front water tank and the rear water tank to generate a water level pressure difference to ensure the pumping capacity Q of the water flow accelerator, that is, the normal flow of water in the left or right water tank. The flow Q, that is to say the water flow of the left water tank or the right water tank is the water flow Q of the water accelerator.

If the height of the outlet of the left and right water tanks is h and the width is b, then the water flow rate in the left or right water tank is v=Q/(hb)

If the paddle is stationary in the water tank, the impact force of water on the paddle is F _min , the density of water is q, the water flow through the paddle section is q, and the cross-sectional area of the paddle is s, then q=vs F _min =qv

Assuming that the speed of the dragon boat rowers rowing the hand-held oars against the current in the waterway is v _oars , the speed of the water flow is v, and the reaction force of the water on the oars is F, then F=－q F _min －qv

The design and production of the water flow rate control system are completed by the calculation of the above formula, so as to better control the flow rate of water in the middle channel and the two outer circulation channels.

Using the impact force generated by the water velocity, that is, the reaction force F, the rowers of the dragon boat rowers paddle against the current in the left or right water tank, and perform a series of technical training or other requirements according to the marks on the left and right technical marking boards. train.

According to the above calculation principle, when the flow rate of water in the water tank is different, the strength and speed of the paddlers can be calculated, which provides powerful first-hand data for the development of dragon boat sports in the future.

The working principle of the photoelectric sensor is to realize the control by converting the change of light intensity into the change of electrical signal.

The working principle of the electronic display device is: the processor receives the data transmitted by the photoelectric sensor, calls the chip to process the data, and the processor sends the processed data to the display screen for display.

When the trainer keeps paddling with the oars, the light path from the light source to the photoelectric sensor is constantly blocked, so that the photoelectric pulse circuit generates electrical pulse signals one by one. Every time the paddle is shaded, the photoelectric sensor circuit generates a pulse signal, which is then processed by the electronic display device and sent to the display screen for display. The pulse number represents the number of paddling times, that is, the paddle frequency. The data displayed on the screen can be used to grasp the intensity of dragon boat training and the density of practice.

The button switch is divided into three buttons: low-speed water flow, medium-speed water flow, and high-speed water flow. The low-speed water flow is 0.5m/s, the medium-speed water flow is 1m/s, and the high-speed water flow is 1.5m/s. The water flow velocity in is set according to the average flow velocity of the Yellow River Basin and the purpose of training.

The angle mark and five vertical lines on the technical signage board, the angle is between 80° and 90°, and the distance between the five vertical lines is 200mm, which is designed according to the technical requirements of dragon boat rowers.

When the land dragon boat trainer of the present invention is in use, first place the trainer stably, fill the water circulation channel of the trainer with water from both sides of the left water tank or the right water tank, and the water level in the left water tank and the right water tank is higher than that of the front water tank and the rear water tank. The water level of the water tank, the water level in the front water tank, the rear water tank and the middle channel are on the same horizontal plane. Using the pressure difference of the water level is beneficial to the sufficient water supply of the front water tank, so that the water flow accelerator can run better and ensure that the water is The normal flow in the left and right outer circulation channels, that is, the pumping volume of the water accelerator, can better meet the requirements of various trainings.

If the rowers in the right row are training, open the gates I and II, and close the gates III and IV; at this time, the water accelerator is activated through the button switch on the console, so that the water flows between the middle channel and the right tank. Circulate in a counterclockwise direction. The rower on the right sits on the seat board holding the oar. In the countercurrent of the right sink, follow the indications on the technical marking board on the right to train a series of movement techniques such as entering the water and pulling the water. The speed of the paddle entering the water The best angle is between 80° and 90°, and the best distance for pulling water is 1 meter to 1.2 meters. When pulling water, the paddle is vertical to the water surface, that is, the backward movement of the paddle is parallel to the five vertical lines on the technical sign board. , in order to better strengthen the team members' paddling skills; they can also simulate the whole process of competition training according to the training requirements; they can also carry out special technical training on the four stages of dragon boat sports, namely, starting, accelerating, en route and sprinting. .

If the paddlers in the left row are training, close the gates I and II, open the gates III and IV, start the water flow accelerator, and the water will circulate clockwise between the middle channel and the left sink, and the rowers in the left row will In the reverse flow of the left sink, according to the marking on the left technical marking board, a series of movement technical training or other training requirements can be carried out for training.

Claims (7)

1. a kind of land dragon boat training aids, including oar, Hydraulic Accelerator, console, electronic display unit, left tank outer panel, Decorate on the left of end-stopping plate after left tank interior plate, right tank outer panel, right tank interior plate, tank front end baffle, tank, front storehouse Decorative panel, left photoelectric sensor, right photoelectric sensor, front-seat dividing plate, left side technique dial plate, right side technology on the right side of plate, front storehouse Dial plate, left water fender, right water fender, internal water main, internal water main upper plate, internal water main left plate, internal water main right plate, The front oralia of internal water main, internal water main prosopyle, internal water main deutostoma, base, front sump, rear sump, left outside cyclic water channel, the right side are outer Cyclic water channel it is characterised in that: described Hydraulic Accelerator is connected with internal water main prosopyle, and described Hydraulic Accelerator is water in circulation The motive power of flowing in water channel；Described front sump is closed sump, described front sump and left outside cyclic water channel and right outer circulation Water channel communicates；Described rear sump is closed sump, and described rear sump is communicated with left outside cyclic water channel and right outer circulation water channel； Before internal water main prosopyle passes through internal water main, oralia is connected with Hydraulic Accelerator, and internal water main deutostoma is communicated with rear sump；Described Left outside cyclic water channel belongs to open channel water channel, and described left outside cyclic water channel is communicated with front sump and rear sump；Described right outer circulation water Road is communicated with front sump and rear sump；Front sump, rear sump, internal water main, left outside cyclic water channel, right outer circulation water channel mutually it Between communicate；Described left outside cyclic water channel is by internal water main left plate, left tank interior plate, tank front end baffle, tank End-stopping plate, left tank outer panel and base are constituted afterwards；Described right outer circulation water channel be by internal water main right plate, right tank inside After plate, tank front end baffle, tank, end-stopping plate, right tank outer panel and base are constituted；Described left side technique dial plate is team member Left oarsman holds the technology scale of oar training in water channel, and described left side technique dial plate is fixedly mounted on left tank outer panel Corresponding position in the middle of top edge；Described right side technology dial plate is the technical bid that the right oarsman of team member holds oar training in water channel Chi, described right side technology dial plate is fixedly mounted on corresponding position in the middle of right tank outer panel top edge；Described left photoelectric sensor It is made up of transmitter, receiver and testing circuit, be arranged on left side technique and indicate front edge of board right angle corresponding position, by power supply Line electronic display unit corresponding with console is connected；Described right photoelectric sensor is by transmitter, receiver and detection electricity Road forms, and is arranged on right side technology and indicates front edge of board right angle corresponding position, by power line electronical display corresponding with console Device is connected；Described electronic display unit is left and right two electronic display units, described electronic display unit be statistics, display, The number of times of record team member's paddle, described electronic display unit is made up of display screen, processor and chip, is arranged on console The both sides of button switch；Described console is containing two electronic display units and three button switches.

2. land according to claim 1 dragon boat training aids it is characterised in that: described base is fusiformis.

3. land according to claim 1 dragon boat training aids it is characterised in that: described Hydraulic Accelerator includes electric water Pump, frequency converter.

4. land according to claim 1 dragon boat training aids it is characterised in that: described button switch be current low or first gear, Current mid ranger, three buttons of current top gear；Described current low or first gear is 0.5m/s, and described current mid ranger is 1m/s, institute Stating current top gear is 1.5m/s.

5. land according to claim 1 dragon boat training aids it is characterised in that: described internal water main is right by internal water main Side plate, internal water main left plate, internal water main upper plate and base are constituted.

6. land according to claim 1 dragon boat training aids it is characterised in that: described left side technique dial plate is marked with oar Enter the angle mark of water and five vertical lines, described angle is between 80 ° to 90 °, and between described five vertical lines, distance is 200mm, Depending between described five vertical lines, distance is the technical requirements according to dragon-boat race team member oarsman.

7. land according to claim 1 dragon boat training aids it is characterised in that: described left photoelectric sensor include send Device, receiver and testing circuit.