Return channel mechanism and swimming-specific training pool

Abstract

This invention discloses a return channel mechanism, including a channel body. A wave-damping plate is rotatably mounted on the channel body via a positioning shaft. Multiple protective units are mounted on the wave-damping plate, each protective unit including a protective plate. A limiting shaft is provided at the end of the wave-damping plate, and multiple protective plates are coaxially and evenly mounted side by side on the limiting shaft, with each protective plate parallel to the wave-damping plate. When trainees are swimming in the pool body, water flows through the pool body. The wave-damping plate and protective plates guide the water flow to a certain extent, so that the water flowing into the pool body will not cause large fluctuations, thus ensuring the relative calmness of the water surface in the pool body.

Description

Technical Field

[0001] This invention relates to the field of sports training technology, specifically to a return channel mechanism and a swimming-specific training pool. Background Technology

[0002] As is generally known, swimming is the skill of moving the body rhythmically in water by floating upwards under the influence of buoyancy. Swimming training requires coaching to guide athletes in learning various swimming techniques. During swimming training, athletes need a relatively stable water flow in the pool, so the pool surface needs to be relatively calm and free of large waves.

[0003] For example, patent application CN207761349U, published on August 24, 2018, entitled "Swimming Training Pool," discloses a swimming training pool including a main pool, side pools on both sides and one end of the main pool, a water pipe fixedly installed at one end of the main pool, one end of the water pipe connected to a horizontal pipe, several nozzles installed on the horizontal pipe, a sunken arc-shaped groove opened on the side of the other end of the main pool, and two submersible pumps fixedly installed on the bottom surface of the side pools, the other end of the water pipe fixedly connected to the submersible pumps. This utility model can realize swimming training in a small pool while improving the training effect. When using this utility model, the submersible pumps work, water from the side pools enters the water pipe, flows into the horizontal pipe, the water in the horizontal pipe flows into the nozzles, and the water in the nozzles sprays into the main pool and flows backward. When the trainee swims forward in the main pool, the water sprayed from the nozzles can move the trainee backward, thus carrying out swimming training. Water flowing into the main pool flows back to the side pool through an arc-shaped channel for recycling.

[0004] Existing training pools simply deliver water into the pool without suppressing the waves from the water jets, resulting in significant surface ripples when swimmers are training. Summary of the Invention

[0005] The purpose of this invention is to provide a return channel mechanism and a swimming training pool to solve the above-mentioned problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a return channel mechanism, comprising a channel body, wherein a wave-suppressing plate is provided in the channel body in a rotatable manner via a positioning shaft, and a plurality of protective units are provided on the wave-suppressing plate, wherein each protective unit includes a protective plate, and a limiting shaft is provided at the end of the wave-suppressing plate, wherein a plurality of protective plates are coaxially and uniformly mounted on the limiting shaft, and each of the protective plates is parallel to the wave-suppressing plate.

[0007] As described above, each of the protective plates and wave-suppressing plates is provided with a limiting unit to achieve end docking between the protective plates and the wave-suppressing plates.

[0008] As mentioned above, each of the protective plates is provided with a return plate at its bottom end away from the wave-suppressing plate in a rotatable manner.

[0009] As mentioned above, each of the return plates and the sidewalls of the flow channel body are connected by a second elastic member, and the second elastic member is in a stretched state.

[0010] As described above, a square groove is provided on one side wall of the flow channel body. The wave-suppressing plate is installed in the square groove by means of rotational engagement through a positioning shaft. An auxiliary wave-suppressing mechanism is provided in the square groove. The auxiliary wave-suppressing mechanism is used to keep the wave-suppressing plate in a horizontal state. The auxiliary wave-suppressing mechanism includes a sliding rod. Two sliding grooves are symmetrically opened on the two inner walls of the square groove. A sliding rod is installed in each of the sliding grooves by means of sliding engagement. A T-shaped rod is provided at the end of the wave-suppressing plate away from the protective plate. An auxiliary block is provided at the bottom end of each sliding rod. The auxiliary block is located between the two ends of the T-shaped rod and the wave-suppressing plate.

[0011] As mentioned above, the top of the sliding rod and the sliding groove are connected by a third elastic element.

[0012] As described above, two auxiliary shafts are symmetrically installed between the two sidewalls on the top side of the flow channel body in a rotational fit, and multiple smoothing plates are evenly installed on each of the auxiliary shafts.

[0013] As described above, one end of each of the auxiliary shafts is located in the square groove and connected to a transmission gear, and each of the sliding rods is evenly provided with locking teeth, and the locking teeth and the transmission gear mesh with each other.

[0014] As mentioned above, each of the aforementioned protective plates has a pre-folded crease in the middle.

[0015] A swimming training pool includes a pool body, on which the aforementioned return channel mechanism is provided.

[0016] The beneficial effects of this invention are as follows: when trainees are swimming in the pool body, water is transported inside the pool body, and the water flow is guided by the wave-damping plate and the protective plate, so that when the water flows into the pool body, it will not cause large fluctuations, thus ensuring that the water surface in the pool body is relatively calm. Attached Figure Description

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 Top view;

[0020] Figure 3 For the present invention Figure 1 The front view;

[0021] Figure 4 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0022] Figure 5 For the present invention Figure 2 Schematic diagram of the cross-sectional structure at BB;

[0023] Figure 6 For the present invention Figure 3 A schematic diagram of the cross-sectional structure at point CC;

[0024] Figure 7 This is a schematic cross-sectional view of the return plate and the protective plate of the present invention in a relatively parallel state.

[0025] Figure 8 This is a schematic cross-sectional view of the third elastic element of the present invention in a compressed state;

[0026] Figure 9 This is a cross-sectional structural diagram of the return plate and protective plate of the present invention in the state of backflow bend.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Flow channel body; 2. Positioning shaft; 3. Wave suppressor plate; 4. Protective plate; 5. Limiting shaft; 6. Clamping rod; 7. Arc groove; 8. Clamping groove; 9. First elastic element; 10. Return plate; 11. Second elastic element; 12. Square groove; 13. Sliding rod; 14. Sliding groove; 15. Auxiliary block; 16. T-shaped rod; 17. Third elastic element; 18. Auxiliary shaft; 19. Wave smoothing plate; 20. Transmission gear; 21. Pre-crease. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 9 As shown in the figure, an embodiment of the present invention provides a return channel mechanism, including a channel body 1. A wave-suppressing plate 3 is provided in the channel body 1 in a rotatable manner through a positioning shaft 2. Multiple sets of protective units are provided on the wave-suppressing plate 3. Each protective unit includes a protective plate 4. A limiting shaft 5 is provided at the end of the wave-suppressing plate 3. Multiple protective plates 4 are coaxially and evenly installed side by side on the limiting shaft 5, and each of the protective plates 4 is parallel to the wave-suppressing plate 3.

[0031] Specifically, the return channel can control the direction of fluid flow, guiding the fluid in a specific direction. The channel body 1 has a cuboid training chamber with an inlet pipe and an outlet pipe. Water flows into the training chamber through the inlet pipe and exits through the outlet pipe. When trainees swim in the training chamber of the channel body 1, they swim from the outlet pipe end to the inlet pipe end, thus performing counter-current training and improving training quality. A wave-damping plate 3 is located on the upper part of one side of the inlet pipe. The end of the wave-damping plate 3 near the outlet pipe is rotatably connected to multiple protective plates 4 via a limiting shaft 5. When the multiple protective plates 4 are parallel to each other, they are spliced ​​into a single plate. The multiple protective plates 4 and the wave-damping plate 3 are parallel to each other, and the direction of the wave-damping plate 3 and the direction of the water flow are... The two systems are parallel to each other. Water is introduced into the main body of the flow channel 1 by a water pump (that is, the water pump delivers water into the main body of the flow channel 1 through the inlet pipe and then discharges it from one end of the outlet pipe), realizing water circulation within the main body of the flow channel 1. While the water is circulating within the main body of the flow channel 1, trainees can enter the main body of the flow channel 1 for specific swimming training. When trainees are conducting specific swimming training within the main body of the flow channel 1, the water within the flow channel 1 will generate waves and ripples due to the drive of the water pump (that is, when water is delivered at the inlet pipe, waves are easily generated on the water surface). Therefore, when trainees are conducting specific swimming training within the main body of the flow channel 1, it is necessary to maintain a relatively calm and stable water surface (maintaining a calm and stable water surface is very important for swimmers because waves...). Waves and ripples can interfere with swimming speed and posture. Existing technologies control the calmness and stability of the water surface within the channel body 1 by reducing the water flow velocity. However, reducing the water flow velocity can affect the water volume within the channel body 1 and the trainees' specialized training. In this embodiment, when trainees are performing specialized training within the channel body 1, the resulting waves and ripples act on the wave-damping plate 3 (made of plastic or rubber). Since the wave-damping plate 3 is located on the upper part of the inlet pipe side, the waves and ripples generated by the inlet pipe cause the wave-damping plate 3 to move with the water surface waves. In other words, the waves and ripples cause the wave-damping plate 3 to rotate around the positioning axis 2, thus reducing the fluctuations on the pool surface. To maintain a calm and stable water surface, the protective plate 4 is mounted on the wave-suppressing plate 3 via the limiting shaft 5, and the protective plate 4 and the wave-suppressing plate 3 are parallel to each other. While the wave-suppressing plate 3 reduces the fluctuations on the pool surface, the multiple protective plates 4 connected to the wave-suppressing plate 3 can simultaneously suppress waves and ripples on the water surface, making the water surface calmer and more stable. Furthermore, the protective plates 4 provide some protection for the trainees (i.e., during swimming training, the trainees' arms may touch the wave-suppressing plate 3, potentially causing damage or affecting the calmness of the water surface; the evenly distributed multiple protective plates 4 ensure that the trainees' arms touch the protective plates 4 first during swimming training, providing a greater tactile feedback).This design prevents trainees from swimming towards the edge of the wave-damping plate 3 (serving as a warning to prevent them from touching the edge of the wave-damping plate 3 or the flow channel body 1), thus providing some protection for the trainees. When trainees are swimming in the pool, the water flow within the pool is guided by the wave-damping plate 3 and the protective plate 4, ensuring that the water flowing into the pool does not create large waves and maintaining a relatively calm water surface.

[0032] Furthermore, each of the protective plates 4 and the wave-suppressing plates 3 is provided with a limiting unit to achieve end docking between the protective plates 4 and the wave-suppressing plates 3. That is, the end of the wave-suppressing plate 3 near the protective plate 4 is rotatably connected to the protective plate 4, allowing the protective plate 4 to swing. The limiting unit includes a clamping rod 6. Each of the protective plates 4 near the wave-suppressing plate 3 is provided with an arc-shaped groove 7. The end of the wave-suppressing plate 3 near the protective plate 4 is provided with a plurality of clamping grooves 8. Each clamping groove 8 is slidably installed with a clamping rod 6. Each clamping rod 6 and each wave-suppressing plate 3 are connected to the wave-suppressing plate 3. Each of the aforementioned clamping grooves 8 is connected by a first elastic element 9, and the clamping rod 6 is clamped within the arc-shaped groove 7. Specifically, the first elastic element 9 (which is a retractable and repositionable element, preferably a spring) provides a certain clamping force to the clamping rod 6, ensuring that the clamping rod 6 is clamped within the arc-shaped groove 7. The clamping of the clamping rod 6 and the arc-shaped groove 7 ensures that the protective plate 4 and the wave-suppressing plate 3 maintain the same plane at their ends. When waves and ripples are generated on the water surface within the flow channel body 1, the wave-suppressing plate 3 and the multiple protective plates 4 move with the waves and ripples on the water surface. The system oscillates to ensure the water surface remains calm and stable. The multiple protective plates 4 serve as a warning to trainees (during swimming training, the trainee's arm swings first touches the protective plate 4, providing a strong tactile feedback and preventing them from swimming towards the wave-damping plate 3), thus preventing them from hitting the edge of the wave-damping plate 3 or the channel body 1. If the trainee's arm does touch the edge of the channel body 1 during training, it could cause injury (because trainees use considerable force when pushing water during specialized training, and the force of the arm colliding with the edge of the channel body 1 could cause injury). This system provides some protection for the trainee. Furthermore, because the wave-damping plate 3 is more affected by the water surface waves (i.e., the wave-damping plate 3 generates greater resistance to the waves), it creates the first wave suppression. The multiple protective plates 4 are less affected by the water surface waves (i.e., the protective plates 4 generate less resistance to the waves), thus creating a second wave suppression. The lower resistance of the protective plates 4 further enhances the protection for the trainee.

[0033] Furthermore, each of the protective plates 4 is provided with a return plate 10 at its bottom end away from the wave-suppressing plate 3 in a rotatable manner. Specifically, since the return plate 10 and the protective plate 4 are rotatably connected to each other and are perpendicular to each other, the perpendicularity between the return plate 10 and the protective plate 4 enables the return plate 10 to suppress waves and ripples on the water surface in the flow channel body 1, reduce water surface fluctuations, and provide a stable training environment for swimming training.

[0034] Furthermore, each of the return plates 10 and the sidewalls of the flow channel body 1 are connected by a second elastic element 11, and the second elastic element 11 is in a stretched state. Specifically, due to the abutment of the first elastic element 9 and the clamping rod 6 against the arc-shaped groove 7, the protective plate 4 and the wave-suppressing plate 3 remain parallel. When the second elastic element 11 (which is a retractable element, preferably a rubber band) is in a stretched state, it will not drive the protective plate 4 to rotate through the return plate 10. However, when the trainee's arm touches the protective plate 4 during training, the protective plate 4 rotates around the limiting shaft 5, causing the clamping rod 6 to disengage from the arc-shaped groove 7. The second elastic element 11 will then pull the return plate 10 and the protective plate 4 to rotate towards the bottom of the flow channel body 1, making the return plate 10 and the protective plate 4 relatively parallel (that is, the protective plate 4 and the return plate 10 are synchronously perpendicular to the wave-suppressing plate 3). Figure 7 As shown, the return plate 10 and the protective plate 4 have a certain wave-suppressing effect on the water jet from the flow channel body 1, so that the water surface in the flow channel body 1 remains relatively calm and stable, providing a stable swimming environment for the trainees' swimming training.

[0035] Furthermore, a square groove 12 is formed on one side wall of the flow channel body 1. The wave-suppressing plate 3 is installed in the square groove 12 by rotational engagement via a positioning shaft 2. An auxiliary wave-suppressing mechanism is provided in the square groove 12 to keep the wave-suppressing plate 3 in a horizontal state. The auxiliary wave-suppressing mechanism includes a sliding rod 13. Two sliding grooves 14 are symmetrically formed on the two inner walls of the square groove 12. Each sliding groove 14 is fitted with a sliding rod 13 in a sliding engagement. A T-shaped rod 16 is provided on the end of the wave-suppressing plate 3 away from the protective plate 4. An auxiliary block 15 is provided at the bottom end of each sliding rod 13, and the auxiliary block 15 is located on the T-shaped rod. Specifically, when waves and ripples are generated in the flow channel body 1, the wave-suppressing plate 3 will rotate around the positioning shaft 2 under the push of the waves. The wave-suppressing plate 3 drives the T-shaped rod 16 to swing back and forth. Since the auxiliary block 15 is set between the T-shaped rod 16 and the wave-suppressing plate 3, the T-shaped rod 16 drives the auxiliary block 15 and the sliding rod 13 to slide back and forth in the groove 14 when it swings back and forth. The self-weight of the sliding rod 13 and the auxiliary block 15 performs a certain auxiliary wave suppression operation on the wave-suppressing plate 3, so that the wave-suppressing plate 3 is in a relatively balanced state, and the wave-suppressing plate 3 can keep the water surface in the flow channel body 1 relatively calm and stable.

[0036] Furthermore, the top of the sliding rod 13 and the groove 14 are connected by a third elastic element 17. Specifically, when waves and ripples are generated in the flow channel body 1, the wave suppressing plate 3 rotates around the positioning shaft 2 under the push of the waves. The wave suppressing plate 3 drives the auxiliary block 15 and the sliding rod 13 to slide back and forth in the groove 14 through the T-shaped rod 16. Through the extension and retraction of the third elastic element 17 (the third elastic element 17 is a component that can extend and retract and reset, preferably a spring), the third elastic element 17 maintains the relative balance of the wave suppressing plate 3 through the sliding rod 13 and the T-shaped rod 16. (1) When the wave suppressing plate 3 drives the T-shaped rod 16 to swing towards the top of the flow channel body 1 under the push of the waves, the wave suppressing plate 3 drives the sliding rod 13 towards the top of the flow channel body 1 through the auxiliary block 15. (1) When the top of the body 1 slides to one side, the sliding rod 13 squeezes the third elastic element 17 to put it in a compressed state. Under the rebound action of the third elastic element 17, the sliding rod 13 slides to the bottom of the flow channel body 1, so that the wave suppressing plate 3 suppresses the waves and keeps the water surface relatively calm and stable. (2) When the wave suppressing plate 3 drives the T-shaped rod 16 to swing to the bottom of the flow channel body 1 under the push of the waves, the wave suppressing plate 3 drives the sliding rod 13 to slide to the bottom of the flow channel body 1 through the auxiliary block 15. The sliding rod 13 pulls the third elastic element 17 to put it in a stretched state. Under the pull action of the third elastic element 17, the sliding rod 13 slides to the top of the flow channel body 1, so that the wave suppressing plate 3 suppresses the waves and keeps the water surface relatively calm and stable.

[0037] Preferably, two auxiliary shafts 18 are symmetrically installed between the two sidewalls on the top side of the flow channel body 1 in a rotating fit. Multiple wave-smoothing plates 19 are evenly installed on each of the auxiliary shafts 18. Specifically, when waves are generated on the water surface inside the flow channel body 1, since the wave-smoothing plates 19 are made of plastic or rubber materials, the multiple wave-smoothing plates 19 can suppress the waves, so that the wave-smoothing plates 19 can rotate around the auxiliary shaft 18 as the waves rise and fall. The auxiliary shaft 18 can install multiple wave-smoothing plates 19, and can also provide a hand support point for trainees to enter and swim out of the flow channel body 1, and can provide a rod with the same function as a handrail for trainees to exit the water.

[0038] Preferably, one end of each of the auxiliary shafts 18 is located in the square groove 12 and connected to the transmission gear 20. Each of the sliding rods 13 is uniformly provided with locking teeth, and the locking teeth and the transmission gear 20 mesh with each other. Specifically, (1) when the wave suppressing plate 3 drives the T-shaped rod 16 to swing towards the top of the channel body 1 under the push of the waves, the wave suppressing plate 3 drives the sliding rod 13 to slide towards the top of the channel body 1 through the auxiliary block 15. The sliding rod 13 meshes with the transmission gear 20 through the locking teeth, so that the transmission gear 20 drives the auxiliary shaft 18 to rotate towards the top of the channel body 1. The auxiliary shaft 18 drives multiple wave smoothing plates 19 to swing towards the top of the channel body 1, so that the wave smoothing plates 19 suppress the waves and keep the water surface relatively calm and stable; (2) when When the wave-suppressing plate 3 drives the T-shaped rod 16 to swing towards the bottom of the channel body 1 under the push of the waves, the wave-suppressing plate 3 drives the sliding rod 13 to slide towards the bottom of the channel body 1 through the auxiliary block 15. The sliding rod 13, through the meshing of the locking teeth and the transmission gear 20, causes the transmission gear 20 to drive the auxiliary shaft 18 to rotate towards the bottom of the channel body 1. The auxiliary shaft 18 drives multiple wave-smoothing plates 19 to swing towards the bottom of the channel body 1, so that the wave-smoothing plates 19 suppress the waves and keep the water surface relatively calm and stable. In other words, under the push of the waves, the wave-suppressing plate 3 and the wave-smoothing plates 19 simultaneously produce a certain wave-suppressing effect on the water surface, so that the water surface in the channel body 1 remains relatively calm and stable, providing a stable swimming environment for the trainees' swimming training.

[0039] Preferably, each of the protective plates 4 has a pre-fold 21 in the middle. Specifically, when a trainee's arm touches the edge of the protective plate 4 during training, the protective plate 4 will rotate and fold at the pre-fold 21, instantly reducing the buoyancy of the water surface on the protective plate 4 (that is, when the protective plate 4 is folded at the pre-fold 21, the contact area of ​​the protective plate 4 with the water surface becomes smaller, thereby reducing the buoyancy of the water surface on the protective plate 4). Furthermore, after the limiting unit releases the limiting unit on the protective plate 4, and under the impact of the water flow, the protective plate 4 bends to a certain extent at the pre-fold 21, so that the protective plate 4 and the return plate 10 combine to form a return bend (that is, the protective plate 4 and the return plate 10 combine to form a U-shaped return section). Figure 9 As shown, this causes the water to partially flow back in the bend, reducing the ripples on the water surface.

[0040] Another embodiment of the present invention provides a swimming training pool, including a pool body, on which the above-mentioned return channel mechanism is provided.

[0041] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A return channel mechanism, comprising a channel body, wherein a wave-damping plate is rotatably disposed within the channel body via a positioning shaft, characterized in that: The wave-suppressing plate is provided with multiple sets of protective units. Each protective unit includes a protective plate. The end of the wave-suppressing plate is provided with a limiting shaft. Multiple protective plates are coaxially and evenly installed side by side on the limiting shaft, and each of the protective plates is parallel to the wave-suppressing plate. A square groove is provided on one side wall of the flow channel body. The wave-suppressing plate is installed in the square groove by means of rotational engagement through a positioning shaft. An auxiliary wave-suppressing mechanism is provided in the square groove. The auxiliary wave-suppressing mechanism is used to keep the wave-suppressing plate in a horizontal state. The auxiliary wave-suppressing mechanism includes a sliding rod. Two sliding grooves are symmetrically opened on the two inner walls of the square groove. A sliding rod is installed in each of the sliding grooves by means of sliding engagement. A T-shaped rod is provided at the end of the wave-suppressing plate away from the protective plate. An auxiliary block is provided at the bottom end of each sliding rod. The auxiliary block is located between the two ends of the T-shaped rod and the wave-suppressing plate. The top of the sliding rod and the sliding groove are connected by a third elastic element; Two auxiliary shafts are symmetrically installed between the two sidewalls on the top side of the flow channel body in a rotating fit, and multiple smoothing plates are evenly installed on each of the auxiliary shafts. One end of each of the auxiliary shafts is located in a square groove and connected to a transmission gear. Each of the sliding rods is evenly provided with locking teeth, and the locking teeth and the transmission gear mesh with each other.

2. The return channel mechanism according to claim 1, characterized in that: Each of the protective plates and wave-suppressing plates is provided with a limiting unit to achieve end docking between the protective plates and the wave-suppressing plates.

3. The return channel mechanism according to claim 1, characterized in that: Each of the aforementioned protective plates has a return plate at its bottom end away from the wave-suppressing plate, which is provided in a rotatable manner.

4. A return channel mechanism according to claim 3, characterized in that: Each of the return plates and the sidewalls of the flow channel body are connected by a second elastic member, and the second elastic member is in a stretched state.

5. A return channel mechanism according to claim 1, characterized in that: Each of the aforementioned protective plates has a pre-folded crease in the middle.

6. A swimming training pool, comprising a pool body, characterized in that, The pool body is provided with a return channel mechanism as described in any one of claims 1-5.

Images