Tension dorsal muscle training device for sports boat racing training

Abstract

The invention is suitable for the technical field of training machines, and provides a tensile dorsal muscle training device for sports boat racing training, the tensile dorsal muscle training device comprises an equipment support and an upright support plate, the upright support plate is vertically and fixedly mounted on the top of the equipment support, and a support plate is fixedly mounted on the equipment support and the upright support plate in a buckling manner; a lower water tank and an upper water tank are arranged among the equipment support, the vertical supporting plate and the support plate, the lower water tank and the upper water tank are buckled with each other and detachably connected through bolts and used for storing training water, and the lower water tank and the equipment support are detachably connected through bolts. According to the tensile dorsal muscle training device for sports boat racing training, the training resistance can be changed by adjusting the contact area of the adjustable paddles and water, the training resistance can also be changed by changing the water volume so as to meet different training requirements, the training resistance changing range is increased, and the tensile dorsal muscle training device can be suitable for people of multiple age groups to use.

Description

Technical Field

[0001] The invention belongs to the technical field of training machines, and in particular relates to a back muscle tension training device for sports rowing training. Background Art

[0002] The rowing machine is a machine used for training purposes to simulate water rowing. Indoor rowing competitions have become a professional competition. Indoor rowing machines are also commonly known as ergometers, which can measure the energy consumed by athletes during exercise. Rowing machines have a good effect on strengthening the muscles of the legs, waist, upper limbs, chest, and back. With each row, the upper limbs, lower limbs, waist, abdomen, and back will complete a complete contraction and extension in the process, which can achieve a full-body aerobic exercise effect.

[0003] For example, the patent document with publication number CN116474313A solves the problem of the trouble of traditional water changing, but it still uses the traditional form of fixed-size blades. When changing the resistance, the amount of water injected is adopted to achieve adjustment. In use, the resistance can be changed within a certain range, but because the blades are not adjustable and the force area is fixed, the range of changing resistance is small, which makes it difficult to adapt to the training needs of smaller athletes to larger athletes. Summary of the invention

[0004] The present invention provides a back muscle training device for rowing training, aiming to solve the problem in the background art that the size of the currently used rowing machine blades cannot be adjusted and the adjustment range is small.

[0005] To solve the above problems, the present invention is implemented as follows: a back muscle tension trainer for sports rowing training, comprising: an equipment bracket and an upright support plate, the upright support plate is vertically fixedly installed on the top of the equipment bracket, and a bracket plate is buckled and fixedly installed on the equipment bracket and the upright support plate; a lower water tank and an upper water tank are arranged between the equipment bracket, the upright support plate and the bracket plate, the lower water tank and the upper water tank are buckled with each other and detachably connected by bolts, and are used to store training water, and the lower water tank and the equipment bracket are detachably connected by bolts; a paddle shaft is rotatably installed on the top of the upper water tank, and the lower water tank and the upper water tank are detachably connected by bolts. An impeller shaft is rotatably installed inside, and the top end of the impeller shaft is drivingly connected to the paddle shaft. A fiber belt and an elastic rope are wound on the paddle shaft. The fiber belt slides through the bracket plate and is fixedly installed with a handle for the operator to hold. One end of the elastic rope is fixed to the equipment bracket to rotate and reset the paddle shaft. Two pedals are provided on the outer side of the bracket plate for the operator to place their feet. A guide rail is fixedly installed inside the equipment bracket, and a sliding bench seat is slidably sleeved on the guide rail. A cushion is fixedly installed on the top of the sliding bench seat for the operator to sit on. At least two adjustable paddle blades are installed on the impeller shaft to adjust the training resistance.

[0006] Preferably, a positioning shaft is fixedly installed at the bottom end of the impeller shaft for plugging into the positioning groove of the bottom inner wall of the lower water tank, and a hexagonal groove is provided at the top end of the impeller shaft for plugging into the hexagonal shaft at the bottom end of the propeller shaft.

[0007] Preferably, the adjustable paddle blades include a connecting piece, a main paddle blade and a secondary paddle blade, the connecting piece is fixedly mounted on the side of the impeller shaft, the main paddle blade is fixedly mounted on the side of the connecting piece, the secondary paddle blade is slidably mounted inside the main paddle blade, and the secondary paddle blade can be pulled and retracted along the main paddle blade and is fixed with a positioning bolt to adjust the contact area with water and adjust the training resistance.

[0008] Preferably, a wheel frame is fixedly mounted on the upright support plate, a guide wheel is rotatably mounted on the wheel frame for guiding the fiber belt, and a belt threading opening is opened on the top of the support plate for allowing the fiber belt to pass through.

[0009] Preferably, a guide rope wheel 1 is rotatably mounted on the wheel frame, and a guide rope wheel 2 is rotatably mounted on the equipment bracket, and the guide rope wheel 1 and the guide rope wheel 2 are used to guide the elastic rope.

[0010] Preferably, a signal magnet is eccentrically fixedly mounted on the paddle shaft, and a counting sensor is fixedly mounted on the top inner wall of the bracket plate. The signal end of the counting sensor corresponds to the rotation trajectory of the signal magnet, so that the paddle shaft drives the signal magnet to rotate when passing through the counting sensor for counting. A display located between the two pedals is provided on the outer side of the bracket plate, and the display is connected to the counting sensor for displaying the count.

[0011] Preferably, a connecting strip is fixedly installed in the equipment bracket, a rope threading ring is installed on the connecting strip, and one end of the elastic rope away from the paddle shaft is fixed to the rope threading ring.

[0012] Preferably, a water inlet is provided at the top of the upper water tank and is sealed with a plug, and a drain pipe is provided at the bottom of the lower water tank, and a valve is provided on the drain pipe.

[0013] Preferably, the side of the bracket plate on which the pedal is mounted is an inclined surface with an inclination angle of 15 to 60 degrees, and the paddle shaft is rotatably connected to the bracket plate.

[0014] Preferably, the paddle shaft comprises an inner shaft and an outer shaft, the outer shaft is connected to the fiber belt and the elastic rope, the inner shaft is connected to the impeller shaft, and the inner shaft and the outer shaft are connected by a bearing and a ratchet structure.

[0015] Compared with the related art, the back muscle tension trainer for sports rowing training provided by the present invention has the following beneficial effects:

[0016] Compared with the prior art, the back muscle tension trainer for sports rowing training provided by the present invention changes the training resistance by adjusting the contact area between the adjustable paddle blade and the water, and can also change the training resistance by changing the amount of water to adapt to different training needs, thereby increasing the range of training resistance changes and being able to adapt to people of multiple age groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main stereoscopic structure of a tension back muscle trainer for sports rowing training provided by the present invention;

[0018] Figure 2 It is a bottom-up stereoscopic structural schematic diagram of a back muscle tension training device for sports rowing training provided by the present invention;

[0019] Figure 3 It is a schematic diagram of the main three-dimensional structure of the guide rail, the sliding seat and the seat cushion in the present invention;

[0020] Figure 4 It is a schematic diagram of the main three-dimensional structure of the sliding stool seat and the seat cushion in the present invention;

[0021] Figure 5 for Figure 4 An enlarged structural diagram of part A shown in FIG.

[0022] Figure 6 for Figure 4 A schematic diagram of the three-dimensional structure of the other side of the shown part;

[0023] Figure 7 for Figure 6 An enlarged schematic diagram of the structure of part B shown in FIG.

[0024] Figure 8 It is a schematic diagram of the structure of the impeller shaft, the main blades and the auxiliary blades in the present invention;

[0025] Fig. 9 It is a schematic diagram of the main cross-sectional structure of a tension back muscle trainer for sports rowing training provided by the present invention;

[0026] Fig.10 for Fig. 9 An enlarged schematic diagram of the structure of part C shown in FIG.

[0027] Fig.11 for Fig. 9 An enlarged structural diagram of part D shown in FIG.

[0028] Fig.12 for Fig. 9 An enlarged structural diagram of part E shown in FIG.

[0029] Fig.13 for Fig. 9An enlarged structural diagram of part F shown in FIG.

[0030] Fig.14 for Fig. 9 An enlarged structural diagram of the G portion shown in FIG.

[0031] Fig.15 It is a schematic diagram of the structure of the transmission of each part when the sliding stool seat moves to the side away from the pedal direction;

[0032] Fig.16 It is a schematic diagram of the structure of the transmission of each part when the sliding stool seat moves toward the side close to the pedal.

[0033] Figure numerals: 1, equipment bracket; 2, upright support plate; 3, bracket plate; 4, lower water tank; 5, upper water tank; 6, propeller shaft; 7, impeller shaft; 8, fiber belt; 9, elastic rope; 10, handle; 11, foot pedal; 12, guide rail; 13, slide seat; 14, cushion; 15, positioning shaft; 16, hexagonal groove; 17, connecting piece; 18, main blade; 19, auxiliary blade; 20, positioning bolt; 21, wheel frame; 22, guide pulley; 23, belt threading port; 24, guide rope wheel one; 25, guide rope wheel two; 26, signal magnet; 27, counting sensor; 28, display; 29, connecting strip; 30, rope threading ring; 31, stabilizing cross bar; 32, through port; 33, rectangular guide port; 34, rectangular guide plate; 35, air slot; 36, Air vent; 37, turbine chamber; 38, air inlet; 39, exhaust port; 40, turbine shaft; 41, turbine blade; 42, driving shaft; 43, driving gear; 44, tooth group; 45, electric telescopic rod; 46, ear piece; 47, shaft mounting plate; 48, displacement avoidance groove; 49, first friction transmission wheel; 50, first rotating shaft; 51, second rotating shaft; 52, synchronous wheel; 53, synchronous belt; 54, second friction transmission wheel; 55, third rotating shaft; 56, third friction transmission wheel; 57, fourth friction transmission wheel; 58, fixing plate; 59, supporting shaft; 60, connecting seat; 61, tensioning spring; 62, tensioning shaft; 63, tensioning wheel; 64, adjusting nut; 65, switching controller; 66, trigger block; 67, switching switch. DETAILED DESCRIPTION

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] The embodiment of the present invention provides a back muscle tension training device for sports rowing training, such as Figure 1-16As shown, the back muscle tension trainer for sports rowing training includes: an equipment bracket 1 and an upright support plate 2, the upright support plate 2 is vertically fixedly installed on the top of the equipment bracket 1, and a bracket plate 3 is fixedly installed on the equipment bracket 1 and the upright support plate 2; a lower water tank 4 and an upper water tank 5 are provided between the equipment bracket 1, the upright support plate 2 and the bracket plate 3, the lower water tank 4 and the upper water tank 5 are buckled with each other and detachably connected by bolts, and are used to store training water, and the lower water tank 4 and the equipment bracket 1 are detachably connected by bolts; a paddle shaft 6 is rotatably installed on the top of the upper water tank 5, and an impeller shaft 7 is rotatably installed in the lower water tank 4 and the upper water tank 5, and the top end of the impeller shaft 7 is transmitted to the paddle shaft 6 The paddle shaft 6 is connected so that when the paddle shaft 6 rotates forward, the impeller shaft 7 is driven to rotate synchronously, and the impeller shaft 7 paddles water. A fiber belt 8 and an elastic rope 9 are wound around the paddle shaft 6. The fiber belt 8 slides through the bracket plate 3 and is fixedly installed with a handle 10 for the operator to hold. One end of the elastic rope 9 is fixed to the equipment bracket 1 to rotate and reset the paddle shaft 6. Two pedals 11 are provided on the outer side of the bracket plate 3 for the operator to place his feet. A guide rail 12 is fixedly installed in the equipment bracket 1. A sliding stool seat 13 is slidably sleeved on the guide rail 12. A cushion 14 is fixedly installed on the top of the sliding stool seat 13 for the operator to sit on. At least two adjustable paddle blades are installed on the impeller shaft 7 for adjusting the training resistance.

[0037] In this embodiment, the method of using the back muscle tension training device for sports rowing training is as follows:

[0038] The operator first sits on the cushion 14, places his feet on the pedals 11, and holds the handle 10 with both hands. The handle 10 is connected to the paddle shaft 6 through the fiber belt 8, and the fiber belt 8 slides through the bracket plate 3 to ensure that the operator can smoothly drive the paddle shaft 6 to rotate when pulling the handle 10.

[0039] When the operator pulls the handle 10 forward, the fiber belt 8 drives the paddle shaft 6 to rotate forward. Through the transmission connection, the forward rotation of the paddle shaft 6 further drives the impeller shaft 7 to rotate in the water in the lower water tank 4 and the upper water tank 5. The adjustable paddle blades on the impeller shaft 7 push the water to generate resistance, simulating the rowing process.

[0040] After completing a pull, the operator releases the grip 10, one end of the elastic rope 9 is fixed to the equipment bracket 1, and the other end is connected to the paddle shaft 6. The tension of the elastic rope 9 helps the paddle shaft 6 to rotate and reset, preparing for the next pull. At the same time, the operator can change the training resistance by adjusting the contact area between the adjustable paddle and the water, and can also change the training resistance by changing the water volume to adapt to different training needs, thereby increasing the range of training resistance changes and being able to adapt to the use of people of multiple age groups.

[0041] This sports rowing training back muscle training device effectively exercises the operator's back, arm and leg muscles by simulating the rowing process, improving their coordination and endurance. At the same time, the design of adjustable paddles allows the training resistance to be adjusted according to personal needs, increasing the flexibility and adaptability of training.

[0042] The equipment bracket 1, the upright support plate 2 and the bracket plate 3 are detachably connected by bolts, which ensures the stability and durability of the entire trainer. At the same time, the lower water tank 4 and the upper water tank 5 are also detachably connected by bolts, which is convenient for cleaning and maintenance.

[0043] The operator only needs to sit on the cushion 14 and pull the handle 10 with both hands to complete the training, which is simple and easy to operate. At the same time, the guide rail 12 fixedly installed in the equipment bracket 1 and the sliding stool seat 13 slidably sleeved ensure the stability and safety of the operator during the training process.

[0044] This trainer uses water resistance as the training medium, does not require electricity or other energy consumption, and is environmentally friendly and energy-saving. At the same time, the design of adjustable blades also enables the trainer to reduce unnecessary energy consumption while providing sufficient resistance.

[0045] In a further preferred embodiment of the present invention, a positioning shaft 15 is fixedly installed at the bottom end of the impeller shaft 7 for plugging into the positioning groove of the bottom inner wall of the lower water tank 4, and a hexagonal groove 16 is provided at the top end of the impeller shaft 7 for plugging into the hexagonal shaft at the bottom end of the paddle shaft 6.

[0046] In this embodiment, a positioning shaft 15 is fixedly installed at the bottom end of the impeller shaft 7. This design enables the impeller shaft 7 to be accurately inserted into the positioning groove on the bottom inner wall of the lower water tank 4 during installation, thereby achieving accurate positioning of the impeller shaft 7 in the vertical direction. In addition, a hexagonal groove 16 is provided at the top of the impeller shaft 7. This structure matches the hexagonal shaft at the bottom end of the propeller shaft 6, and a stable connection between the two is achieved through plug-in. During the installation process, the operator only needs to align the hexagonal shaft at the bottom end of the propeller shaft 6 with the hexagonal groove 16 at the top end of the impeller shaft 7 and insert it, and the transmission connection can be easily completed without the need for complicated bolts or other fasteners.

[0047] In a further preferred embodiment of the present invention, the adjustable blades include a connecting piece 17, a main blade 18 and an auxiliary blade 19, the connecting piece 17 is fixedly mounted on the side of the impeller shaft 7, the main blade 18 is fixedly mounted on the side of the connecting piece 17, the auxiliary blade 19 is slidably mounted in the main blade 18, and the auxiliary blade 19 can be pulled and retracted along the main blade 18 and is fixed with a positioning bolt 20, so as to adjust the contact area with water and adjust the training resistance.

[0048] In this embodiment, the adjustable blades are composed of a connecting piece 17, a main blade 18 and an auxiliary blade 19. The connecting piece 17 is fixedly mounted on the side of the impeller shaft 7 to ensure a firm connection with the impeller shaft 7. The main blade 18 is fixedly mounted on the side of the connecting piece 17 to form the main structure of the blade. The auxiliary blade 19 is slidably mounted in the main blade 18, can be pulled and retracted along the main blade 18, and is fixed by a positioning bolt 20. This design allows the operator to easily adjust the length of the auxiliary blade 19 extending out of the main blade 18 according to training requirements, thereby changing the contact area between the blade and the water, and then adjusting the training resistance.

[0049] In use, by sliding and adjusting the extension length of the auxiliary paddle 19, the operator can control the contact area between the paddle and the water, thereby greatly adjusting the training resistance. This adjustment method is not only flexible, but also greatly expands the adjustment range of the training resistance, so that the trainer can adapt to various training needs from elementary to advanced, from lightweight to heavyweight. In addition, due to the telescopic design of the auxiliary paddle 19, the operator can also easily achieve continuous adjustment of the training resistance without changing the paddle, further improving the flexibility and adaptability of the training.

[0050] In a further preferred embodiment of the present invention, a wheel frame 21 is fixedly mounted on the upright support plate 2, a guide wheel 22 is rotatably mounted on the wheel frame 21 for guiding the fiber belt 8, and a belt threading opening 23 is opened on the top of the support plate 3 for the fiber belt 8 to pass through.

[0051] In this embodiment, a wheel frame 21 is fixedly mounted on the upright support plate 2, and a guide wheel 22 is rotatably mounted on the wheel frame 21, so that the fiber belt 8 can be effectively guided during the pulling process, avoiding the wear or jamming problem caused by the fiber belt 8 directly rubbing against the support plate 3 or other components. At the same time, a belt threading port 23 is opened on the top of the support plate 3. This design ensures that the fiber belt 8 can smoothly pass through the inside of the support plate 3 during the pulling process, further improving the fluency and comfort of the training.

[0052] In a further preferred embodiment of the present invention, a guide rope wheel 24 is rotatably mounted on the wheel frame 21, and a guide rope wheel 25 is rotatably mounted on the equipment support 1. The guide rope wheel 24 and the guide rope wheel 2 25 are used to guide the elastic rope 9.

[0053] In this embodiment, a guide rope wheel 1 24 is rotatably mounted on the wheel frame 21. This design enables the elastic rope 9 to smoothly turn along the guide rope wheel 1 24 during the stretching process, thereby avoiding direct friction between the elastic rope 9 and the wheel frame 21 or other components. At the same time, a guide rope wheel 25 is also rotatably mounted on the equipment bracket 1. This design further ensures the stability and guidance of the elastic rope 9 during the stretching process. Through the coordinated use of the guide rope wheel 1 24 and the guide rope wheel 2 25, the stretching path of the elastic rope 9 is effectively planned and optimized, thereby improving the efficiency and safety of the training.

[0054] In a further preferred embodiment of the present invention, a signal magnet 26 is eccentrically fixedly installed on the paddle shaft 6, and a counting sensor 27 is fixedly installed on the top inner wall of the bracket plate 3. The signal end of the counting sensor 27 corresponds to the rotation trajectory of the signal magnet 26, so that the paddle shaft 6 drives the signal magnet 26 to rotate when passing through the counting sensor 27 for counting. A display 28 located between the two pedals 11 is provided on the outer side of the bracket plate 3. The display 28 is connected to the counting sensor 27 for displaying the count.

[0055] In this embodiment, a signal magnet 26, a counting sensor 27 and a display 28 are introduced to realize accurate counting and display of the number of rotations of the paddle shaft 6. Specifically, the signal magnet 26 is eccentrically fixedly installed on the paddle shaft 6, which means that as the paddle shaft 6 rotates, the signal magnet 26 will also rotate in an eccentric manner. At the same time, a counting sensor 27 is fixedly installed on the top inner wall of the bracket plate 3, and its signal end precisely corresponds to the rotation trajectory of the signal magnet 26. Whenever the paddle shaft 6 drives the signal magnet 26 to rotate past the counting sensor 27, the counting sensor 27 will trigger a count. In addition, on the outside of the bracket plate 3, we set a display 28, which is located between the two pedals 11 and is connected to the counting sensor 27 for real-time display of the counting results.

[0056] In a further preferred embodiment of the present invention, a connecting strip 29 is fixedly installed in the equipment bracket 1 , a rope threading ring 30 is installed on the connecting strip 29 , and one end of the elastic rope 9 away from the paddle shaft 6 is fixed to the rope threading ring 30 .

[0057] In this embodiment, a connecting strip 29 is fixedly installed in the equipment bracket 1, which facilitates the fixing of the elastic cord 9. A rope threading ring 30 is installed on the connecting strip 29. This innovative design enables the end of the elastic cord 9 away from the paddle shaft 6 to be firmly fixed to the rope threading ring 30. Through this fixing method, the elastic cord 9 can remain stable during the stretching process and is not easy to fall off or loosen, thereby ensuring the continuity and safety of training.

[0058] In a further preferred embodiment of the present invention, a water inlet is provided at the top of the upper water tank 5 and is sealed with a plug, and a drain pipe is provided at the bottom of the lower water tank 4 and a valve is provided on the drain pipe.

[0059] In this embodiment, a water inlet is added to the top of the upper water tank 5. This design allows the user to easily add water to the upper water tank 5. In order to ensure that water does not accidentally overflow from the water inlet, a plug is used for blocking. This design is both simple and practical. At the same time, a drain pipe is provided at the bottom of the lower water tank 4, and a valve is installed on the drain pipe. This design allows the user to control the drainage of the lower water tank 4 as needed, further improving the flexibility and convenience of the device.

[0060] In a further preferred embodiment of the present invention, the side of the bracket plate 3 on which the pedal 11 is mounted is an inclined surface with an inclination angle of 15 to 60 degrees, and the paddle shaft 6 is rotatably connected to the bracket plate 3 .

[0061] In this embodiment, the side of the bracket plate 3 where the pedal 11 is installed is designed as an inclined surface, and the inclination angle of this inclined surface is precisely controlled between 15 and 60 degrees. This design not only conforms to the principles of ergonomics, allowing users to apply force more comfortably and naturally when using the pedal 11, but also improves the stability and safety during training. At the same time, a rotation connection is adopted between the paddle shaft 6 and the bracket plate 3, ensuring that the paddle shaft 6 can remain stable and smooth during the rotation process, further improving the overall performance of the device.

[0062] In a further preferred embodiment of the present invention, the paddle shaft 6 includes an inner shaft and an outer shaft, the outer shaft is connected to the fiber belt 8 and the elastic rope 9, the inner shaft is connected to the impeller shaft 7, and the inner shaft and the outer shaft are connected by a bearing and a ratchet structure. The above-mentioned paddle shaft 6 adopts a common product currently on the market without any improvement, and the relevant transmission method also adopts the existing technology.

[0063] In this embodiment, the paddle shaft 6 is divided into an inner shaft and an outer shaft, wherein the outer shaft is connected to the fiber belt 8 and the elastic rope 9, and is responsible for transmitting the power generated by the user through the pedal 11 to the fiber belt 8 and the elastic rope 9, thereby driving the entire training device to operate. The inner shaft is connected to the impeller shaft 7, and generates water flow or air flow through the rotation of the impeller to simulate sports environments such as rowing or cycling. In order to achieve stable and efficient transmission between the inner shaft and the outer shaft, a connection method of bearing and ratchet structure is adopted. The bearing ensures smooth rotation between the inner shaft and the outer shaft, and the ratchet structure is used to control the transmission direction and prevent reverse rotation, thereby improving the efficiency and stability of the entire device.

[0064] In order to further improve the use effect of the device, in addition to the above scheme, this scheme also has the following embodiments:

[0065] In another embodiment of the present invention, a stabilizing bar 31 is fixedly installed in the equipment bracket 1, and the stabilizing bar 31 is fixedly connected to the side of the guide rail 12 close to the bracket plate 3, and the side of the guide rail 12 away from the bracket plate 3 is fixedly connected to the inner wall of the equipment bracket 1, and the other two sides of the guide rail 12 are spaced from the inner wall of the equipment bracket 1 so that the sliding stool seat 13 can slide, and the sliding stool seat 13 is provided with a through hole 32 for the guide rail 12 to pass through (such as Fig.14 shown).

[0066] In this embodiment, a stabilizing cross bar 31 is fixedly installed in the equipment support 1, and the stabilizing cross bar 31 is fixedly connected to the side of the guide rail 12 close to the bracket plate 3. This design not only strengthens the supporting structure of the guide rail 12, but also improves the stability of the entire equipment. At the same time, the side of the guide rail 12 away from the bracket plate 3 is fixedly connected to the inner wall of the equipment support 1, ensuring the stability of the guide rail 12. In addition, the other two sides of the guide rail 12 maintain a certain distance from the inner wall of the equipment support 1. This design allows the sliding bench seat 13 to slide smoothly on the guide rail while ensuring the stability and accuracy of the sliding. In order to cooperate with the through-design of the guide rail 12, a through opening 32 is opened on the sliding bench seat 13 to ensure that the guide rail 12 can pass through smoothly, thereby achieving smooth sliding of the sliding bench seat 13.

[0067] In another embodiment of the present invention, a rectangular guide opening 33 is opened on the guide rail 12, a rectangular guide plate 34 is slidably installed in the rectangular guide opening 33, the rectangular guide plate 34 is fixedly connected to the sliding stool seat 13, and the rectangular guide opening 33 is opened along the sliding direction of the sliding stool seat 13.

[0068] In this embodiment, a rectangular guide opening 33 is provided on the guide rail 12, and this design allows a rectangular guide plate 34 to slide in the rectangular guide opening 33. The rectangular guide plate 34 is fixedly connected to the sliding stool seat 13, so when the sliding stool seat 13 slides on the guide rail 12, the rectangular guide plate 34 will slide in the rectangular guide opening 33 accordingly.

[0069] In another embodiment of the present invention, an air groove 35 is provided on the top of the sliding stool seat 13, a plurality of air holes 36 are provided on the cushion 14, and the plurality of air holes 36 are all connected to the air groove 35. A turbine chamber 37 is provided on the sliding stool seat 13, and an air inlet 38 and an exhaust port 39 are provided on the inner wall of the turbine chamber 37, the air inlet 38 is connected to the outside of the sliding stool seat 13, and the exhaust port 39 is connected to the air groove 35. A turbine shaft 40 is rotatably installed in the turbine chamber 37, and a plurality of turbine blades 41 located in the turbine chamber 37 are fixedly installed on the turbine shaft 40, and the turbine shaft 40 is rotatably installed in the turbine chamber 37. A driving shaft 42 is installed, and the driving shaft 42 and the turbine shaft 40 are both arranged parallel to the rectangular guide plate 34. The driving shaft 42 is located below the guide rail 12. A driving gear 43 is fixedly sleeved on the driving shaft 42. A tooth group 44 is fixedly installed at the bottom of the guide rail 12. The tooth group 44 is meshed with the driving gear 43, so that when the sliding stool seat 13 slides along the guide rail 12, the driving gear 43 rolls along the tooth group 44 to drive the driving shaft 42 to rotate. The driving shaft 42 is connected to the turbine shaft 40 by a switchable friction drive mechanism, which is used to synchronously drive the turbine shaft 40 to rotate for ventilation when the sliding stool seat 13 slides.

[0070] In this embodiment, an air groove 35 is provided on the top of the sliding seat 13, and a plurality of air holes 36 connected to the air groove 35 are provided on the cushion 14, so as to increase the air permeability of the cushion 14 and reduce the discomfort of the user when using the seat for a long time. In addition, a turbine chamber 37 is provided inside the sliding seat 13, and an air inlet 38 and an air outlet 39 are provided on the inner wall thereof. The air inlet 38 is connected to the outside, and the air outlet 39 is connected to the air groove 35. A turbine shaft 40 is rotatably installed in the turbine chamber 37, and a plurality of turbine blades 41 are fixedly installed thereon. In order to drive the turbine shaft 40 to rotate, a driving shaft 42 is rotatably installed in the through port 32, and a driving gear 43 is fixedly sleeved thereon. The driving gear 43 is meshed with a tooth group 44 at the bottom of the guide rail 12. When the sliding seat 13 slides along the guide rail 12, the driving gear 43 rolls along the tooth group 44, thereby driving the driving shaft 42 to rotate. In order to transmit the rotational power of the driving shaft 42 to the turbine shaft 40, a switchable friction drive mechanism is adopted, so that the turbine shaft 40 can be synchronously driven to rotate when the sliding stool seat 13 slides, thereby achieving a ventilation effect.

[0071] By providing an air slot 35 on the top of the sliding bench seat 13 and a vent hole 36 on the seat cushion 14, the air permeability of the seat cushion is effectively improved, so that the user can keep the buttocks dry and comfortable during long-term use, reducing the stuffiness and discomfort caused by long-term pressure. This design is particularly suitable for use in summer or high temperature environments, and can greatly improve the user's training experience.

[0072] In addition to improving the air permeability of the seat cushion 14, this improvement also realizes the function of synchronous ventilation and enhances the functionality of the device. By adopting a switchable friction drive mechanism, the sliding power of the sliding seat 13 is successfully converted into the rotational power of the turbine shaft 40, thereby achieving the effect of synchronously driving the turbine shaft 40 to rotate and ventilate when the sliding seat 13 slides. This design not only increases the fun of the device, but also allows users to enjoy a more comfortable environment during training.

[0073] In another embodiment of the present invention, the switchable friction drive mechanism includes an electric telescopic rod 45, the electric telescopic rod 45 is fixedly mounted on the side of the sliding stool seat 13, an ear piece 46 is fixedly mounted on the output rod of the electric telescopic rod 45, a shaft mounting plate 47 is fixedly mounted on the ear piece 46, a displacement avoidance groove 48 is provided on the shaft mounting plate 47, and the displacement avoidance groove 48 is arranged corresponding to the turbine shaft 40, and is used for the electric telescopic rod 45 to push the shaft mounting plate 47 to slide to avoid the turbine shaft 40, and both ends of the turbine shaft 40 and the driving shaft 42 extend to the sliding stool seat 13. Outside the stool seat 13, the turbine shaft 40 is fixedly sleeved with a first friction transmission wheel 49 located on the side of the shaft mounting plate 47, and the shaft mounting plate 47 is rotatably mounted with a first rotating shaft 50 and a second rotating shaft 51, and the first rotating shaft 50 and the second rotating shaft 51 are respectively located on both sides of the first friction transmission wheel 49, and the driving shaft 42, the first rotating shaft 50 and the second rotating shaft 51 are fixedly sleeved with a synchronous wheel 52, and the three synchronous wheels 52 are distributed in a triangular array, and the three synchronous wheels 52 are sleeved with the same synchronous belt 53, so that the driving shaft 42 synchronously drives the first rotating shaft 50 and the second rotating shaft 51. The shaft 50 and the second shaft 51 rotate, the first shaft 50 is fixedly sleeved with a second friction transmission wheel 54, the shaft mounting plate 47 is also rotatably mounted with a third shaft 55, the third shaft 55 is located between the turbine shaft 40 and the second shaft 51, the second shaft 51 is fixedly sleeved with a third friction transmission wheel 56, the third shaft 55 is fixedly sleeved with a fourth friction transmission wheel 57, the fourth friction transmission wheel 57 is always in contact with the third friction transmission wheel 56 to achieve friction transmission, the second friction transmission wheel 54 and the fourth friction transmission wheel 57 The rotation directions of the second friction transmission wheel 54 and the third friction transmission wheel 56 are always opposite, the rotation directions of the second friction transmission wheel 54 and the third friction transmission wheel 56 are always consistent with the rotation direction of the driving shaft 42, the rotation direction of the driving shaft 42 changes with the sliding direction of the sliding stool seat 13, and the triggering of the electric telescopic rod 45 changes synchronously with the change of the rotation direction of the driving shaft 42, so that the shaft mounting plate 47 slides and switches the second friction transmission wheel 54 or the fourth friction transmission wheel 57 to contact the first friction transmission wheel 49 for friction transmission, so that the first friction transmission wheel 49 and the turbine shaft 40 always rotate in one direction.

[0074] In this embodiment, the switchable friction drive mechanism can realize the synchronous rotation of the turbine shaft 40 when the sliding stool seat 13 slides, and ensure that the turbine shaft 40 always rotates in one direction. Specifically, the switchable friction drive mechanism includes an electric telescopic rod 45, which is fixedly mounted on the side of the sliding stool seat 13. An ear piece 46 is fixed on the output rod of the electric telescopic rod 45, and an axis mounting plate 47 is fixed on the ear piece 46. A displacement avoidance groove 48 is provided on the axis mounting plate 47 to avoid the turbine shaft 40 when the electric telescopic rod 45 pushes the axis mounting plate 47 to slide. Both ends of the turbine shaft 40 and the driving shaft 42 extend to the outside of the sliding stool seat 13, and a first friction transmission wheel 49 is sleeved on the turbine shaft 40. A first rotating shaft 50 and a second rotating shaft 51 are rotatably mounted on the axis mounting plate 47, and they are respectively located on both sides of the first friction transmission wheel 49. The driving shaft 42, the first rotating shaft 50 and the second rotating shaft 51 are all sleeved with synchronous wheels 52, and are connected by the same synchronous belt 53, so that the driving shaft 42 synchronously drives the first rotating shaft 50 and the second rotating shaft 51 to rotate. The first rotating shaft 50 is sleeved with a second friction transmission wheel 54, the second rotating shaft 51 is sleeved with a third friction transmission wheel 56, and the shaft mounting plate 47 is also rotatably mounted with a third rotating shaft 55, on which a fourth friction transmission wheel 57 is sleeved. The fourth friction transmission wheel 57 is always in contact with the third friction transmission wheel 56 to achieve friction transmission. By design, the second friction transmission wheel 54 and the fourth friction transmission wheel 57 have opposite rotation directions, while the second friction transmission wheel 54 and the third friction transmission wheel 56 have the same rotation direction as the driving shaft 42. The triggering of the electric telescopic rod 45 is synchronized with the change of the rotation direction of the driving shaft 42, so as to slide and switch the second friction transmission wheel 54 or the fourth friction transmission wheel 57 to contact with the first friction transmission wheel 49, ensuring that the turbine shaft 40 always rotates in one direction.

[0075] First, by designing a switchable friction drive mechanism, the synchronous rotation of the turbine shaft 40 is successfully achieved when the sliding seat 13 slides, because the rotation of the turbine can drive air flow and increase the ventilation effect under the seat cushion 14. Secondly, by synchronizing the triggering of the electric telescopic rod 45 with the change of the rotation direction of the driving shaft 42, it can ensure that the turbine shaft 40 always rotates in one direction, avoiding confusion or discomfort caused by changes in direction.

[0076] In another embodiment of the present invention, a fixing plate 58 is fixedly installed on the side of the sliding stool seat 13, a support shaft 59 is slidably installed on the fixing plate 58, a connecting seat 60 is fixedly installed on the end of the support shaft 59, a tensioning spring 61 is sleeved on the support shaft 59, and the tensioning spring 61 is located between the fixing plate 58 and the connecting seat 60, a tensioning shaft 62 is rotatably installed on the connecting seat 60, a tensioning wheel 63 is sleeved on the tensioning shaft 62, and the tensioning wheel 63 is in contact with the synchronous belt 53, and an adjusting nut 64 is threadedly sleeved on the support shaft 59.

[0077] In this embodiment, a fixing plate 58 is fixedly installed on the side of the sliding bench seat 13, and a support shaft 59 is slidably installed on the fixing plate 58. A connecting seat 60 is fixed to the end of the support shaft 59, and a tension spring 61 is sleeved on the support shaft 59. The tension spring 61 is located between the fixing plate 58 and the connecting seat 60 to provide continuous tension for the tension wheel 63. A tension shaft 62 is rotatably installed on the connecting seat 60, and a tension wheel 63 in contact with the synchronous belt 53 is sleeved on the tension shaft 62. In order to adjust the tension of the tension wheel 63, an adjusting nut 64 is threadedly sleeved on the support shaft 59. By rotating the adjusting nut 64, the sliding position of the support shaft 59 on the fixing plate 58 can be changed, thereby adjusting the compression degree of the tension spring 61 and the tension of the tension wheel 63 on the synchronous belt 53.

[0078] In another embodiment of the present invention, a switching controller 65 is provided on the sliding stool seat 13, trigger blocks 66 are fixedly installed on both sides of the sliding stool seat 13, two switching switches 67 are installed on the guide rail 12, and the two switching switches 67 are respectively arranged corresponding to the two trigger blocks 66, and the switching switch 67, the switching controller 65 and the electric telescopic rod 45 are controlled and connected.

[0079] In the above, the installation positions of the two trigger blocks 66 and the switching switch 67 can also be swapped, so that the switching switch 67 is installed on both sides of the sliding stool seat 13, and the two trigger blocks 66 are installed on the guide rail 12 to realize the trigger control. The installation of the two trigger blocks 66 and the switching switch 67 is detachable, which is convenient for adjusting the position and replacement as needed.

[0080] In this embodiment, in terms of the control of the switchable friction drive mechanism, a switching controller 65 is provided on the sliding seat 13, and the switching controller 65 is responsible for receiving signals and controlling the movement of the electric telescopic rod 45. At the same time, trigger blocks 66 are fixedly installed on both sides of the sliding seat 13, and two switching switches 67 corresponding to the trigger blocks 66 are installed on the guide rail 12. When the sliding seat 13 slides along the guide rail 12 and causes the trigger block 66 to contact the switching switch 67, the switching switch 67 will send a signal to the switching controller 65, and the switching controller 65 will then control the movement of the electric telescopic rod 45 according to the preset logic, thereby switching the contact state of the friction transmission wheel and realizing the control of the rotation direction of the turbine shaft 40.

[0081] In summary, compared with related technologies, this device effectively exercises the operator's back, arm and leg muscles and improves their coordination and endurance by simulating the rowing process; at the same time, the training resistance can be changed by adjusting the contact area between the adjustable paddle and the water, and the training resistance can also be changed by changing the water volume to adapt to different training needs, thereby increasing the range of training resistance changes and being able to adapt to people of multiple age groups.

[0082] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A back muscle tension training device for sports rowing training, characterized in that: include: An equipment bracket and an upright support plate, wherein the upright support plate is vertically fixedly mounted on the top of the equipment bracket, and a bracket plate is buckled and fixedly mounted on the equipment bracket and the upright support plate; A lower water tank and an upper water tank are provided between the equipment bracket, the upright support plate and the bracket plate. The lower water tank and the upper water tank are interlocked and detachably connected by bolts, and are used to store training water. The lower water tank and the equipment bracket are detachably connected by bolts; A paddle shaft is rotatably mounted on the top of the upper water tank, an impeller shaft is rotatably mounted in the lower water tank and the upper water tank, the top end of the impeller shaft is drivingly connected to the paddle shaft, a fiber belt and an elastic rope are wound around the paddle shaft, the fiber belt slides through the bracket plate and is fixedly mounted with a handle for the operator to hold, one end of the elastic rope is fixed to the equipment bracket to rotate and reset the paddle shaft; Two footrests are provided on the outer side of the bracket plate for placing the operator's feet. A guide rail is fixedly installed in the equipment bracket. A sliding stool seat is slidably sleeved on the guide rail. A cushion is fixedly installed on the top of the sliding stool seat for the operator to sit on. At least two adjustable blades are installed on the impeller shaft for adjusting the training resistance.

2. The back muscle tension training device for sports rowing training according to claim 1, characterized in that: A positioning shaft is fixedly installed at the bottom end of the impeller shaft for plugging into the positioning groove on the bottom inner wall of the lower water tank. A hexagonal groove is opened at the top end of the impeller shaft for plugging into the hexagonal shaft at the bottom end of the propeller shaft.

3. The back muscle tension training device for sports rowing training according to claim 1, characterized in that: The adjustable blades include a connecting piece, a main blade and an auxiliary blade. The connecting piece is fixedly mounted on the side of the impeller shaft, the main blade is fixedly mounted on the side of the connecting piece, and the auxiliary blade is slidably mounted inside the main blade. The auxiliary blade can be pulled and retracted along the main blade and is fixed with a positioning bolt to adjust the contact area with water and adjust the training resistance.

4. The back muscle tension training device for sports rowing training according to claim 1, characterized in that: A wheel frame is fixedly mounted on the upright support plate, and a guide wheel is rotatably mounted on the wheel frame for guiding the fiber belt. A belt threading opening is provided on the top of the support plate for allowing the fiber belt to pass through.

5. The back muscle tension training device for sports rowing training as claimed in claim 4, characterized in that: A guide rope wheel 1 is rotatably mounted on the wheel frame, and a guide rope wheel 2 is rotatably mounted on the equipment bracket. The guide rope wheel 1 and the guide rope wheel 2 are used to guide the elastic rope.

6. The back muscle tension training device for sports rowing training according to claim 1, characterized in that: A signal magnet is eccentrically fixedly mounted on the paddle shaft, and a counting sensor is fixedly mounted on the top inner wall of the bracket plate. The signal end of the counting sensor corresponds to the rotation trajectory of the signal magnet, so that the paddle shaft drives the signal magnet to rotate when passing through the counting sensor for counting. A display located between the two pedals is provided on the outer side of the bracket plate, and the display is connected to the counting sensor for displaying the count.

7. The back muscle tension training device for rowing training according to claim 1, characterized in that: A connecting strip is fixedly installed in the equipment bracket, a rope threading ring is installed on the connecting strip, and one end of the elastic rope away from the paddle shaft is fixed to the rope threading ring.

8. The back muscle tension training device for sports rowing training according to claim 1, characterized in that: The top of the upper water tank is provided with a water inlet which is blocked by a plug, and the bottom of the lower water tank is provided with a drain pipe which is provided with a valve.

9. The back muscle tension training device for sports rowing training according to claim 1, characterized in that: The side of the support plate on which the pedal is installed is an inclined surface with an inclination angle of 15 to 60 degrees, and the paddle shaft is rotatably connected to the support plate.

10. The back muscle tension training device for sports rowing training according to claim 1, characterized in that: The paddle shaft comprises an inner shaft and an outer shaft, the outer shaft is connected to the fiber belt and the elastic rope, the inner shaft is connected to the impeller shaft, and the inner shaft and the outer shaft are connected by a bearing and a ratchet structure.

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