An energy-saving treadmill capable of generating electricity

Abstract

The present invention discloses an energy-saving treadmill capable of generating electricity, which comprises a base, a running belt, a control panel, handrails and a bracket. Both ends of the running belt are installed on the base through transmission rollers, and the transmission rollers are in transmission connection with a motor through a first transmission mechanism. A support frame is provided at the bottom of the running belt located above, and a plurality of support rollers form a rolling running board structure under the running belt; The shock-absorbing support includes a support housing, a piston, a shock-absorbing chamber, a return spring, a liquid inlet hole and a liquid outlet hole; The present invention replaces the running board structure of the traditional treadmill with a conveyor belt and support roller structure, converts the sliding friction loss between the running belt and the running board of the traditional treadmill into electric energy storage and the kinetic energy of the support rollers, reduces the wear of the running belt, and reduces energy consumption at the same time. By designing the shock-absorbing strut and shock-absorbing support structure, while achieving the shock-absorbing effect, the impact kinetic energy of the human body on the treadmill during running is converted into electric energy for storage and use, improving the energy-saving effect.

Description

Technical Field

[0001] The present invention relates to the technical field of treadmill structures, and particularly relates to an energy-saving treadmill capable of generating electricity. Background Art

[0002] Treadmills are relatively common exercise equipment in gyms and families. They drive the running belt through a motor to make people run or walk passively at different speeds. Due to the passive formation of running and walking, from the perspective of the action appearance, it is almost the same as running or walking on the ground. However, from the perspective of human effort, running and walking on an electric treadmill saves a stretching action compared to ordinary running and walking. It is precisely this point that makes everyone who runs or walks on an electric treadmill feel very relaxed and comfortable. It can make people run about one-third more distance than ordinary running, and the energy consumption is also more than ordinary walking and running. It is one of the essential equipment for exercise. Existing traditional treadmills generally drive the running belt to rotate through a motor, and a supporting running board is arranged below the running belt. During running, a person's weight will press down on the running belt to make it contact the running board, resulting in sliding friction, which causes the running belt to be easily worn, increasing the maintenance cost. At the same time, sliding friction will convert kinetic energy into internal energy and consume it, increasing the energy consumption of the treadmill. At the same time, during the running process, the process of a person lifting the leg is a process of doing work against gravity. During the process of lowering the leg, the gravitational potential energy is converted into the mechanical energy (vibration) and internal energy (heat generation) of the treadmill. The present invention designs the structure for the places where the existing treadmill consumes a large amount of energy, and converts part of the energy into electrical energy for storage or reuse, so as to achieve the purpose of energy saving. Summary of the Invention

[0003] The purpose of the present invention is to provide an energy-saving treadmill capable of generating electricity.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions:

[0005] An energy-saving treadmill capable of generating electricity, comprising a base, a running belt, a control panel, handrails and a bracket. The bracket is installed on one side of the base. The control panel and the handrails are arranged at the top of the bracket. Both ends of the running belt are installed on the base through transmission rollers. The transmission rollers are in transmission connection with a motor through a first transmission mechanism. A support frame is provided at the bottom of the running belt located above. The bottoms of the four corners of the support frame are installed on four shock-absorbing supports through four shock-absorbing support rods. A number of support rollers are installed on the support frame. The number of support rollers forms a rollable running board structure under the running belt. A power generation roller is installed on the support frame at both ends of the running board structure. The diameter of the power generation roller is set larger than that of the support roller. A transmission belt is installed on the two power generation rollers. A gap is provided between the transmission belt and the running belt above. Transmission teeth are provided on the inner side of the running belt and the outer side of the transmission belt. The power generation roller is connected to a second generator through a second transmission mechanism. The second generator is connected to a storage battery through an inverter. The shock-absorbing support includes a support housing, a piston, a shock-absorbing cavity, a return spring, a liquid inlet hole and a liquid outlet hole. The piston is installed in the shock-absorbing cavity inside the support housing. The piston is fixedly connected to the bottom end of the shock-absorbing support rod. The upper end of the shock-absorbing support rod is fixedly connected to the support frame. The lower end of the return spring is inserted into a jack at the bottom of the shock-absorbing cavity. The upper end of the return spring abuts against the bottom of the piston. A confluence hole is provided below the jack. The liquid inlet hole and the liquid outlet hole are arranged on the side of the confluence hole. The liquid inlet hole is connected to the liquid outlet end of a liquid inlet one-way valve. The liquid inlet end of the liquid inlet one-way valve is connected to a return liquid main pipe. The return liquid main pipe is connected to a liquid storage tank. The liquid outlet hole is connected to the liquid inlet end of a liquid outlet one-way valve. The liquid outlet one-way valve and the liquid inlet one-way valve have the same structure and are arranged in opposite installation directions. The liquid outlet end of the liquid outlet one-way valve is connected to a liquid outlet main pipe. The liquid outlet main pipe is connected to the liquid inlet and outlet of a water turbine. The liquid outlet of the water turbine is connected to the liquid storage tank. The main shaft of the water turbine is in transmission connection with a first generator. The first generator is connected to the storage battery through an inverter.

[0006] Further, the liquid outlet one-way valve or the liquid inlet one-way valve includes a valve body, a valve core, a valve rod, a sealing spring, a sleeve and a sealing block. The valve core and the valve rod are installed in the valve cavity of the valve body. A number of evenly distributed installation positioning rods are provided on the outer side of one end of the valve rod. The valve rod is installed on the positioning shoulder of the valve cavity through the installation positioning rods. The other end of the valve rod is inserted into the sleeve of the valve core. The sealing spring is installed in the sleeve and provides elastic force between the valve core and the valve rod. The sealing spring pushes the sealing surface of the valve core to fit and seal with the sealing block in the valve cavity.

[0007] Further, the running belt and the support frame are inclined. With this setting, the component force of the impact force generated when a person runs can be along the direction of the running belt, reducing the energy consumption of the motor.

[0008] Further, the first transmission mechanism and the second transmission mechanism are belt transmission mechanisms or gear transmission mechanisms.

[0009] Further, the shock-absorbing strut and the shock-absorbing support are arranged perpendicular to the support surface of the vertical support frame.

[0010] Further, the transmission tooth is a long strip tooth with an isosceles trapezoid structure on the side, and its length direction is perpendicular to the movement direction of the running belt, ensuring that the running belt and the transmission belt are in static friction and there will be no sliding friction, reducing energy loss.

[0011] Further, the diameter of the power generation roller is set 4 - 10 mm larger than the diameter of the support roller. When the transmission belt is not subjected to the force given by the running belt, the transmission belt is separated from the support roller, and there is no force acting between them, reducing frictional loss.

[0012] Further, the distance between the running belt and the upper belt surface of the transmission belt is the tooth height of 3 - 4 transmission teeth, subtracting the tooth heights of two transmission teeth of the running belt and the transmission belt, that is, the tooth tip distance is 1 - 2 tooth heights.

[0013] Further, the bottom of the base is provided with support feet, and the support feet are directly below the shock-absorbing support. The position of the support feet can directly bear the impact force of the shock-absorbing support, avoiding deformation of the base under the impact.

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1. Replace the running board structure of the traditional treadmill with a transmission belt and a support roller structure, convert the sliding friction loss between the running belt and the running board of the traditional treadmill into electric energy storage and the kinetic energy of the support roller, reduce the wear of the running belt, and at the same time reduce energy consumption.

[0016] 2. By designing the shock-absorbing strut and shock-absorbing support structure, while achieving the shock-absorbing effect, convert the impact kinetic energy of the human body on the treadmill during running into electric energy for storage and use, improving the energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the top view of the present invention;

[0018] Figure 2 is the side cross-sectional view of the present invention;

[0019] Figure 3 is the structural schematic diagram of the shock-absorbing support;

[0020] Figure 4 is the structural schematic diagram of the one-way valve;

[0021] Figure 5 is the structural schematic diagram of the running belt transmission part;

[0022] Figure 6 is the internal structural schematic diagram of the present invention.

[0023] In the figure, 1 is the base; 2 is the running belt; 3 is the control panel; 4 is the handrail; 5 is the bracket; 6 is the driving roller; 7 is the support frame; 8 is the conveyor belt; 9 is the support roller; 10 is the power generation roller; 11 is the shock-absorbing strut; 12 is the shock-absorbing support; 13 is the liquid outlet check valve; 14 is the liquid inlet check valve; 15 is the main liquid outlet pipe; 16 is the main liquid return pipe; 17 is the water turbine; 18 is the liquid storage tank; 19 is the support foot; 20 is the support housing; 21 is the piston; 22 is the shock-absorbing cavity; 23 is the return spring; 24 is the liquid inlet hole; 25 is the liquid outlet hole; 26 is the valve body; 27 is the valve core; 28 is the valve stem; 29 is the sealing spring; 30 is the sleeve; 31 is the sealing block; 32 is the installation positioning rod; 33 is the transmission gear; 34 is the first transmission mechanism; 35 is the motor; 36 is the battery; 37 is the inverter; 38 is the first generator; 39 is the second transmission mechanism; 40 is the second generator. Specific embodiments

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0025] As Figure 1-6As shown in the figure, an energy-saving treadmill capable of generating electricity includes a base 1, a running belt 2, a control panel 3, handrails 4, and a bracket 5. The bracket 5 is installed on one side of the base 1. The control panel 3 and the handrails 4 are arranged at the top of the bracket 5. The rotation speed of the motor 35 can be controlled through the control panel 3, and the motor 35 can be a variable-frequency motor. Both ends of the running belt 2 are installed on the base 1 through transmission rollers 6. Specifically, as shown in Figure 2, the transmission rollers 6 are drivingly connected to the motor 35 through a first transmission mechanism 34. The motor 35 can be powered by an external power cord, by a storage battery 36, or a combination of both. A support frame 7 is provided at the bottom of the running belt 2 located above. It has a rectangular structure. The bottoms of the four corners of the rectangular support frame 7 are installed on four shock-absorbing supports 12 through four shock-absorbing struts 11. A number of support rollers 9 are installed on the support frame 7. The number of support rollers 9 forms a rollable running board structure below the running belt 2. One power generation roller 10 is installed on each of the two ends of the support frame 7 of the running board structure. The diameter of the power generation roller 10 is set larger than that of the support roller 9. A transmission belt 8 is installed on the two power generation rollers 10. A gap is provided between the transmission belt 8 and the running belt 2 above. Transmission teeth 33 are provided on the inner side of the running belt 2 and the outer side of the transmission belt 8. The transmission teeth 33 are arranged such that after the human body presses down the running belt 2 to fit with the transmission belt 8, there is no sliding friction between the two, and the transmission belt 8 moves with the running belt 2 to reduce friction loss. The power generation roller 10 is connected to a second generator 40 through a second transmission mechanism 39. The second generator 40 is connected to the storage battery 36 through an inverter 37. The transmission belt 8 drives the power generation roller 10 to rotate, thereby driving the second generator 40 to rotate and generate electricity, which is stored in the storage battery.

[0026] As Figure 3As shown in the figure, the shock absorber support 12 includes a support housing 20, a piston 21, a shock absorption chamber 22, a return spring 23, a liquid inlet hole 24, and a liquid outlet hole 25. The piston 21 is installed in the shock absorption chamber 22 inside the support housing 20. The piston 21 is fixedly connected to the bottom end of the shock absorber rod 11. The upper end of the shock absorber rod 11 is fixedly connected to the support frame 7. The lower end of the return spring 23 is inserted into the jack at the bottom of the shock absorption chamber 22. The upper end of the return spring 23 abuts against the bottom of the piston 21. A confluence hole is provided below the jack. The liquid inlet hole 24 and the liquid outlet hole 25 are arranged on the side of the confluence hole. The liquid inlet hole 24 is connected to the liquid outlet end of the liquid inlet check valve 14. The liquid inlet end of the liquid inlet check valve 14 is connected to the return liquid main pipe 16. The return liquid main pipe 16 is connected to the liquid storage tank 18. The liquid outlet hole 25 is connected to the liquid inlet end of the liquid outlet check valve 13. The liquid outlet check valve 13 and the liquid inlet check valve 14 have the same structure and are arranged in opposite installation directions. The liquid outlet end of the liquid outlet check valve 13 is connected to the liquid outlet main pipe 15. The liquid outlet main pipe 15 is connected to the liquid inlet and outlet of the water turbine 17. The liquid outlet of the water turbine 17 is connected to the liquid storage tank 18. The main shaft of the water turbine 17 is drivingly connected to the first generator 38. The first generator 38 is connected to the storage battery 36 through the inverter 37. Refer to Figure 6 The above-mentioned liquid storage tank 18, water turbine 17, motor 35, storage battery 36, inverter 37, first generator 38, and second generator 40 are all installed on the base 1 below the support 5.

[0027] As Figure 4 shown, further, the liquid outlet check valve 13 or the liquid inlet check valve 14 includes a valve body 26, a valve core 27, a valve rod 28, a sealing spring 29, a sleeve 30, and a sealing block 31. The valve core 27 and the valve rod 28 are installed in the valve cavity of the valve body 26. A plurality of evenly distributed installation positioning rods 32 are provided on the outer side of one end of the valve rod 28. The valve rod 28 is installed on the positioning shoulder of the valve cavity through the installation positioning rods 32. The other end of the valve rod 28 is inserted into the sleeve 30 of the valve core 27. The sealing spring 29 is installed in the sleeve 30 and provides elastic force between the valve core 27 and the valve rod 28. The sealing spring 29 pushes the sealing surface of the valve core 27 to fit and seal with the sealing block 31 in the valve cavity. Similarly, in this embodiment, a common check valve on the market can also be selected. Its main purpose is to control the one-way flow of the liquid and meet the cyclic flow operation of the liquid in the shock absorber support 12.

[0028] Preferably, as Figure 2 shown, the running belt 2 and the support frame 7 are inclined. The inclined setting can divide the impact force generated when a person runs along the direction of the running belt 2, reducing the energy consumption of the motor 35.

[0029] Preferably, the first transmission mechanism 34 and the second transmission mechanism 39 are belt transmission mechanisms or gear transmission mechanisms. As Figure 6 shown, it adopts pulley transmission.

[0030] As Figure 5 shown, the shock-absorbing strut 11 and the shock-absorbing support 12 are arranged perpendicular to the support surface of the support frame 7, which can better collect kinetic energy and transfer it to the water turbine 17 for power generation. Further, the transmission tooth 33 is a long tooth with an isosceles trapezoid structure on the side, and its length direction is perpendicular to the movement direction of the running belt 2, ensuring that the running belt 2 and the transmission belt 8 are in static friction and will not have sliding friction, reducing energy loss. Further, the diameter of the power generation roller 10 is set 4 - 10 mm larger than the diameter of the support roller 9. When the transmission belt 8 is not subjected to the force given by the running belt 2, the transmission belt 8 is separated from the support roller 9, and there is no force acting between the two, reducing frictional loss. Further, the distance between the running belt 2 and the upper belt surface of the transmission belt 8 is 3 - 4 times the tooth height of the transmission tooth 33, minus the tooth heights of the two transmission teeth of the running belt 2 and the transmission belt 8, that is, the tooth tip distance is 1 - 2 tooth heights.

[0031] Preferably, referring to Figure 2 , a support foot 19 is provided at the bottom of the base 1, and the support foot 19 is directly below the shock-absorbing support 12. The position of the support foot 19 can directly bear the impact force of the shock-absorbing support 12, avoiding deformation of the base 1 under the impact.

[0032] Working principle: When starting the treadmill and there is no one running on the treadmill, the running belt 2 is separated from the transmission belt 8, and the motor is in an idle state. When there is someone running on the treadmill, the running belt 2 intermittently contacts the transmission belt 8 under pressure with the steps. The transmission belt 8 contacts the support roller 9 (mainly rolling friction occurs between the two), transferring part of the kinetic energy to the support roller 9. At the same time, the transmission belt 8 drives the power generation roller 10 to rotate, driving the generator two 40 to generate electricity, and the electric energy is stored and utilized through the storage battery 36; the support roller 9 plays a supporting role and at the same time transmits the impact force of running to the support frame 7 and the shock-absorbing support 12 at its bottom. The piston 21 in the shock-absorbing support 12 moves downward to squeeze the return spring 23 and the liquid in the shock-absorbing chamber 22. The liquid in the shock-absorbing chamber 22 passes through the liquid outlet hole 25 and the liquid outlet check valve 13, and the liquid passes through the liquid outlet main pipe 15 to drive the water turbine 17 on its pipeline to rotate. The water turbine 17 drives the generator one 38 to generate electricity, and the electric energy is converted into direct current through the inverter and then stored and utilized through the storage battery 36. When the runner's foot leaves the gap of the running belt 2, the return spring 23 pushes the piston 21 upward, that is, pushes the support frame 7, the transmission belt 8, etc. upward, forming a negative pressure in the shock-absorbing chamber 22. The liquid in the liquid storage tank 18 enters the shock-absorbing chamber 22 through the return liquid main pipe 16 and the liquid inlet check valve 14 under the action of the negative pressure until the runner steps on the running belt 2 next time, and the liquid in the shock-absorbing chamber 22 repeats the above process to do work on the water turbine 17 to generate electricity. While playing a role in shock absorption, it can convert kinetic energy into electric energy for storage and reuse, thus achieving the purpose of power generation and energy conservation and reducing energy consumption.

[0033] This specific embodiment is only an interpretation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An energy-saving treadmill capable of generating electricity, comprising a base (1), a running belt (2), a control panel (3), handrails (4) and a bracket (5). The bracket (5) is installed on one side of the base (1). The control panel (3) and the handrails (4) are arranged on the top of the bracket (5). Both ends of the running belt (2) are installed on the base (1) through transmission rollers (6). The transmission rollers (6) are in transmission connection with a motor (35) through a first transmission mechanism (34), and it is characterized in that: The bottom of the upper running belt (2) is provided with a support frame (7). The bottoms of the four corners of the support frame (7) are installed on four shock-absorbing supports (12) through four shock-absorbing support rods (11). A number of support rollers (9) are installed on the support frame (7). The a number of support rollers (9) form a rollable running board structure under the running belt (2). One power generation roller (10) is installed on each of the support frames (7) at both ends of the running board structure. The diameter of the power generation roller (10) is set larger than that of the support roller (9). A transmission belt (8) is installed on the two power generation rollers (10). A gap is provided between the transmission belt (8) and the upper running belt (2). Transmission teeth (33) are provided on the inner side of the running belt (2) and the outer side of the transmission belt (8); the power generation roller (10) is connected to a second generator (40) through a second transmission mechanism (39). The second generator (40) is connected to a storage battery (36) through an inverter (37); the shock-absorbing support (12) includes a support housing (20), a piston (21), a shock-absorbing chamber (22), a return spring (23), a liquid inlet hole (24) and a liquid outlet hole (25). The piston (21) is installed in the shock-absorbing chamber (22) inside the support housing (20). The piston (21) is fixedly connected to the bottom end of the shock-absorbing support rod (11). The upper end of the shock-absorbing support rod (11) is fixedly connected to the support frame (7). The lower end of the return spring (23) is inserted into a jack at the bottom of the shock-absorbing chamber (22). The upper end of the return spring (23) abuts against the bottom of the piston (21). A confluence hole is provided below the jack. The liquid inlet hole (24) and the liquid outlet hole (25) are arranged on the side of the confluence hole. The liquid inlet hole (24) is connected to the liquid outlet end of a liquid inlet one-way valve (14). The liquid inlet end of the liquid inlet one-way valve (14) is connected to a return liquid main pipe (16). The return liquid main pipe (16) is connected to a liquid storage tank (18); the liquid outlet hole (25) is connected to the liquid inlet end of a liquid outlet one-way valve (13). The liquid outlet one-way valve (13) and the liquid inlet one-way valve (14) have the same structure and are arranged in opposite installation directions. The liquid outlet end of the liquid outlet one-way valve (13) is connected to a liquid outlet main pipe (15). The liquid outlet main pipe (15) is connected to the liquid inlet and outlet of a water turbine (17). The liquid outlet of the water turbine (17) is connected to the liquid storage tank (18). The main shaft of the water turbine (17) is in transmission connection with a first generator (38). The first generator (38) is connected to the storage battery (36) through an inverter (37).

2. The energy-saving treadmill capable of generating electricity according to claim 1, wherein: The liquid outlet check valve (13) or the liquid inlet check valve (14) includes a valve body (26), a valve core (27), a valve stem (28), a sealing spring (29), a sleeve (30) and a sealing block (31). The valve core (27) and the valve stem (28) are installed in the valve cavity of the valve body (26). A number of uniformly distributed installation positioning rods (32) are provided on the outer side of one end of the valve stem (28). The valve stem (28) is installed on the positioning shoulder of the valve cavity through the installation positioning rods (32). The other end of the valve stem (28) is inserted into the sleeve (30) of the valve core (27). The sealing spring (29) is installed in the sleeve (30) and provides an elastic force between the valve core (27) and the valve stem (28). The sealing spring (29) pushes the sealing surface of the valve core (27) to fit and seal with the sealing block (31) in the valve cavity.

3. The energy-saving treadmill capable of generating electricity according to claim 2, wherein: The running belt (2) and the support frame (7) are inclined.

4. The energy-saving treadmill capable of generating electricity according to claim 3, wherein: The first transmission mechanism (34) and the second transmission mechanism (39) are belt transmission mechanisms or gear transmission mechanisms.

5. The energy-saving treadmill capable of generating electricity according to claim 4, wherein: The shock-absorbing support rod (11) and the shock-absorbing support (12) are arranged perpendicular to the support surface of the support frame (7).

6. The energy-saving treadmill capable of generating electricity according to claim 5, wherein: The transmission tooth (33) is a long tooth with an isosceles trapezoid structure on the side, and its length direction is perpendicular to the movement direction of the running belt (2).

7. The energy-saving treadmill capable of generating electricity according to claim 6, wherein: The diameter of the power generation roller (10) is set 4 - 10 mm larger than the diameter of the support roller (9).

8. The energy-saving treadmill capable of generating electricity according to claim 7, wherein: The distance between the running belt (2) and the upper belt surface of the transmission belt (8) is the tooth height of 3 - 4 transmission teeth (33).

9. The energy-saving treadmill capable of generating electricity according to claim 8, characterized in that: The bottom of the base (1) is provided with support feet (19), and the support feet (19) are located directly below the shock-absorbing support (12).

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