Gradient adjusting mechanism of treadmill running platform

Abstract

The utility model provides a gradient adjusting mechanism of a treadmill running platform. The gradient adjusting mechanism of the running machine running platform comprises the running machine running platform, supports are arranged on the two sides of the running machine running platform, a fixing plate is fixed to the front ends of the supports, a front roller shaft is arranged at the front end of the running machine running platform, and the two ends of the front roller shaft are sequentially connected with the fixing plate and a lifting rotating plate in a rotating mode from inside to outside. A lifting frame supporting pipe is arranged at the front end of the front roller shaft, a fixing support is arranged at the front end of the lifting frame supporting pipe, a first braking component is arranged outside the lifting frame supporting pipe, second braking components are arranged at the two ends of the fixing plate, and the first braking component and the second braking components are matched with each other to adjust the gradient of the treadmill table of the treadmill. Stepless gradient adjustment is achieved through the controllable spring, the adjusting and fixing positions are accurate, the structure is simple, cost is low, and use is convenient.

Description

Technical Field

[0001] The utility model relates to a slope adjusting mechanism for a treadmill platform. Background Art

[0002] Existing treadmill slope adjustment mechanisms mainly have two adjustment modes: automatic and manual. Among them, the automatic adjustment structure is easy to use, but its structure is complex, costly, and easy to damage, which is not conducive to its promotion and popularization in home use. The existing manual adjustment method generally uses a positioning pin and an adjustment plate buckle connection, which limits the gears of the running platform slope and cannot limit the treadmill slope to multiple gears. It is easy to produce abnormal noise when running, and manual adjustment is inconvenient to use. Utility Model Content

[0003] In view of the defects of the existing treadmill slope adjustment mechanism, the technical problem to be solved by the present invention is to provide a treadmill slope adjustment mechanism that is easy to use.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, the present invention is realized through the following technical measures: a slope adjustment mechanism of a treadmill platform, comprising: a treadmill platform, brackets are provided on both sides of the treadmill platform, a fixed plate is fixed to the front end of the bracket, a front roller shaft is provided at the front end of the treadmill platform, the two ends of the front roller shaft are rotatably connected with the fixed plate and the lifting turn plate from the inside to the outside in sequence, a lifting frame support tube is provided at the front end of the front roller shaft, a fixed bracket is provided at the front end of the lifting frame support tube, a first brake component is provided on the outside of the lifting frame support tube, and second brake components are provided at both ends of the fixed plate, the first brake component and the second brake component cooperate with each other to adjust the slope of the treadmill platform.

[0005] Furthermore, the first braking component includes a handle, and a steel cable pull plate is fixed under both ends of the handle. One end of the steel cable pull plate is rotatably connected to a connecting plate, and the connecting plate is fixed to the lifting frame support tube. The other end of the steel cable pull plate is provided with a card interface, and a steel cable pressure plate is provided under the card interface. The steel cable pressure plate is an L-shaped plate, and one side of the steel cable pressure plate is fixed to the lifting frame support tube, and the other side is connected to the brake cable.

[0006] Furthermore, the brake cable is provided with a clamping joint at both ends, one of the clamping joints at both ends of the brake cable has a clamping groove, and the other clamping joint is provided with an adjusting nut, and the adjusting nuts are preferably two. The brake cable is provided with an inner steel wire, and the inner steel wire can move in the brake cable. A clamping block is provided at each end of the inner steel wire, and the cable pressure plate has a U-shaped groove. The clamping groove of the brake cable clamping joint cooperates and is plugged into the U-shaped groove of the cable pressure plate. Limiting steel wires are fixed on both sides of the U-shaped groove to limit the brake cable to prevent the outer tube clamping joint of the cable from falling off from the U-shaped groove of the cable pressure plate. The clamping interface of the cable pull plate cooperates and is clamped with the clamping block of the inner steel wire.

[0007] Furthermore, the handle is fixed to the steel cable pull plate by bolts, the connecting plate is welded to the lifting frame support tube, the connecting plate is hingedly connected to the steel cable pull plate so that the steel cable pull plate rotates around the connecting plate, and the steel cable pressure plate is welded to the lifting frame support tube.

[0008] Furthermore, a roller is provided at the lower end of the fixed bracket to facilitate movement during adjustment, and the side of the lifting turn plate away from the front roller shaft is fixed to the lifting bracket support pipe bolt.

[0009] Furthermore, the second brake component includes a U-shaped plate, a fixing seat I is fixed at the front end of the U-shaped plate, and the end of the lifting and rotating plate connected to the fixing bracket extends toward the top to form a fixing seat II, and the fixing seat I is bolted to the fixing seat II, and a controllable spring joint is fixed at the opening of the U-shaped plate, and a bolt hole is opened at one end of the controllable spring joint, and a piston rod is bolted in the bolt hole of the controllable spring joint, and a valve is provided at the end where the piston rod is fixed to the controllable spring joint, and the top of the valve is abutted against the valve switch, and the end of the valve switch away from the valve extends outward to form a steel cable connection port, and the clamping joint at the other end of the brake cable is fixed to the controllable spring joint by an adjusting nut, and the steel cable connection port is clamped with the clamping block at the other end of the steel wire in the brake cable, the valve switch is hinged to the controllable spring joint, and the valve switch rotates around the hinge, and the end of the piston rod away from the valve switch is connected to the controllable spring.

[0010] Furthermore, roller holes are opened at positions corresponding to the two ends of the front roller shaft on the fixed plate and the lifting and rotating plate. The roller holes are connected to the front roller shaft through bearings, and the front roller shaft can rotate in the roller holes. A plastic gasket is padded between the fixed plate and the lifting and rotating plate. A fixing hole is opened on one side of the roller hole. The fixing hole is connected to a universal ball joint, and the other end of the universal ball joint is fixed to the bolt at the tail of the controllable spring.

[0011] Compared with the prior art, the advantages of the present invention are: stepless adjustment of the slope is achieved through the controllable spring, the adjustment and fixing position are accurate, the structure is simple, the cost is low, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a schematic structural diagram of the slope adjustment mechanism of a treadmill platform described in the utility model.

[0014] Figure 2 This is an exploded schematic diagram of the slope adjustment mechanism of a treadmill platform described in the present invention.

[0015] Figure 3 This is an exploded schematic diagram of the first brake component described in the present invention.

[0016] Figure 4 This is an exploded schematic diagram of the second brake component described in the present invention.

[0017] Explanation of the accompanying symbols: 1. Treadmill platform; 2. Bracket; 3. Front roller shaft; 4. Fixed plate; 5. Lifting turntable; 6. Plastic gasket; 7. Second brake component; 8. Fixed bracket; 9. First brake component; 10. Lifting frame support tube; 11. Fixed seat II; 12. Roller; 13. Roller hole; 14. Fixed hole; 15. Universal ball joint; 16. Handle; 17. Cable pull plate; 18. Connecting plate; 19. Cable pressure plate; 20. Limiting steel wire; 21. Brake cable; 22. Card joint; 23. Card groove; 24. Inner steel wire; 25. Card block; 26. U-shaped groove; 27. Card interface; 28. U-shaped plate; 29. ​​Fixed seat I; 30. Adjusting nut; 31. Valve switch; 32. Cable connection port; 33. Controllable spring joint; 34. Valve; 35. Piston rod; 36. Controllable spring. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0019] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "bottom", "top", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The present embodiment provides a treadmill platform slope adjustment mechanism comprising: a treadmill platform 1, with brackets 2 provided on both sides of the treadmill platform 1, a fixed plate 4 fixed to the front end of the bracket 2, a front roller shaft 3 provided at the front end of the treadmill platform 1, and the two ends of the front roller shaft 3 are rotatably connected to the fixed plate 4 and the lifting turntable 5 in sequence from the inside to the outside, a lifting frame support tube 10 provided at the front end of the front roller shaft 3, a fixed bracket 8 provided at the front end of the lifting frame support tube 10, a first brake component 9 provided on the outside of the lifting frame support tube 10, and second brake components 7 provided at both ends of the fixed plate 4. The first brake component 9 cooperates with the second brake component 7 to adjust the slope of the treadmill platform 1.

[0021] The first brake component 9 includes a handle 16, and a steel cable pull plate 17 is fixed below both ends of the handle 16. One end of the steel cable pull plate 17 is rotatably connected to a connecting plate 18, and the connecting plate 18 is fixed to the lifting frame support tube 10. The other end of the steel cable pull plate 17 is provided with a card interface 27, and a steel cable pressure plate 19 is provided below the card interface 27. The steel cable pressure plate 19 is an L-shaped plate, and one side of the steel cable pressure plate 19 is fixed to the lifting frame support tube 10, and the other side is connected to the brake cable 21.

[0022] The brake cable 21 is provided with a clamping joint 22 at both ends of the brake cable 21. One of the clamping joints 22 at both ends of the brake cable 21 has a clamping groove 23, and the other clamping joint 22 is provided with an adjusting nut 30. Preferably, there are two adjusting nuts 30. The brake cable 21 is provided with an inner steel wire 24, and the inner steel wire 24 can move in the brake cable 21. A clamping block 25 is provided at each end of the inner steel wire 24. The cable pressure plate 19 is provided with a U-shaped groove 26. The clamping groove 23 of the clamping joint 22 of the brake cable 21 is engaged with the U-shaped groove 26 of the cable pressure plate 19. The limiting steel wires 20 are fixed on both sides of the U-shaped groove 26 to limit the brake cable 21 to prevent the cable outer tube clamping joint 22 from falling off from the U-shaped groove 26 of the cable pressure plate 19. The clamping interface 27 of the cable pull plate 17 is engaged with the clamping block 25 of the inner steel wire 24.

[0023] The handle 16 is fixed to the steel cable plate 17 by bolts, the connecting plate 18 is welded and fixed to the lifting frame support tube 10, the connecting plate 18 is hingedly connected to the steel cable plate 17 so that the steel cable plate 17 rotates around the connecting plate 18, and the steel cable pressure plate 19 is welded and fixed to the lifting frame support tube 10.

[0024] The lower end of the fixed bracket 8 is provided with a roller 12 for easy movement during adjustment. The side of the lifting turn plate 5 away from the front roller shaft 3 is bolted to the lifting frame support pipe 10.

[0025] The second brake component 7 includes a U-shaped plate 28, a fixing seat I 29 is fixed to the front end of the U-shaped plate 28, and the end of the lifting turntable 5 connected to the fixing bracket 8 extends to the top to form a fixing seat II 11, and the fixing seat I 29 is bolted to the fixing seat II 11. A controllable spring joint 33 is fixed at the opening of the U-shaped plate 28, and a bolt hole is opened at one end of the controllable spring joint 33. A piston rod 35 is bolted in the bolt hole of the controllable spring joint 33, and a valve 3 is provided at the end where the piston rod 35 is fixed to the controllable spring joint 33. 4. The top of the valve 34 is against the valve switch 31. The end of the valve switch 31 away from the valve 34 extends outward to form a cable connection port 32. The clamping joint 22 at the other end of the brake cable 21 is fixed to the controllable spring joint 33 through the adjusting nut 30. The cable connection port 32 is clamped with the clamping block 25 at the other end of the steel wire 24 in the brake cable 21. The valve switch 31 is hinged to the controllable spring joint 33. The valve switch 31 rotates around the hinge. The end of the piston rod 35 away from the valve switch 31 is connected to the controllable spring 36.

[0026] The fixed plate 4 and the lifting and rotating plate 5 are each provided with roller holes 13 at positions corresponding to the two ends of the front roller shaft 3. The roller hole 13 is connected to the front roller shaft 3 through a bearing, and the front roller shaft 3 can rotate in the roller hole 13. A plastic gasket 6 is padded between the fixed plate 4 and the lifting and rotating plate 5 to reduce stress concentration, play a buffering role, and eliminate rotational noise. A fixing hole 14 is provided on one side of the roller hole 13, and the fixing hole 14 is connected to a universal ball joint 15. The other end of the universal ball joint 15 is fixed to the bolt at the tail of the controllable spring 36.

[0027] When the slope adjustment mechanism of a treadmill platform of the present invention increases the slope, the handle 16 is pulled upward, and the handle 16 drives the steel cable pull plate 17 to rotate. The steel cable pull plate 17 drives the steel wire 24 inside the steel cable to move. The other end of the steel wire 24 inside the steel cable drives the valve switch 31 to rotate. The valve switch 31 pushes the valve 34 to open the controllable spring 36 valve 34. The internal air pressure of the controllable spring 36 pushes the piston rod 35 to move outward. Combined with the force of the user pulling the handle 16, the lifting turntable 5 rotates with the front roller shaft 3 as the center of the circle. The controllable spring 36 rotates with the universal ball joint 15 as the center of the circle. The position of the front roller shaft 3 is raised, thereby changing the slope of the treadmill running board.

[0028] Since the roller 12 reduces friction, the push of the controllable spring 36 and the pull of the handle 16 work together to change the slope with less effort;

[0029] When the required slope is reached, the handle 16 is released, and the controllable spring connector 33 is released after the steel cable is no longer under stress. The controllable spring 36 valve 34 is closed, and the slope can be locked. When the valve 34 is closed, the internal air pressure pushes the valve 34, and the valve 34 pushes the valve switch 31 to reset.

[0030] To lower the slope or level the treadmill, pull the handle 16 to open the valve 34 of the controllable spring 36, then press the treadmill downwards, causing the lifting plate 5 to rotate around the front roller shaft 3, and the controllable spring 36 to rotate around the universal ball joint 15. The piston rod 35 of the controllable spring 36 pushes into the interior of the controllable spring 36. When the desired slope is reached, simply release the handle 16. After the cable is no longer stressed, release the controllable spring joint 33, and the valve 34 of the controllable spring 36 will close, locking the slope.

[0031] When laying flat, an external force is required to push the piston rod 35 in, and the external force should be greater than the internal pressure difference of the controllable spring 36;

[0032] The controllable spring 36 is a controllable gas spring, which pulls the valve switch 31, and the valve switch 31 pushes the valve 34. After the valve 34 is opened, the piston rod 35 can move to any position in the stroke. After releasing the valve switch 31, the valve 34 is reset and closed under the action of the internal air pressure of the controllable spring 36. During the reset process, the valve switch 31 is pushed back to reset. After the valve 34 is closed, it stops moving and has a large locking force after stopping. The joint type matched with the controllable spring 36 is a universal ball joint 15. This type of gas spring can automatically adjust the connection angle during operation, thereby eliminating the lateral force during the operation of the gas spring, and is particularly suitable for occasions with high requirements on installation accuracy.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A treadmill slope adjustment mechanism, comprising: A treadmill platform, wherein brackets are provided on both sides of the treadmill platform, a fixed plate is fixed at the front end of the bracket, and a front roller shaft is provided at the front end of the treadmill platform, characterized in that the two ends of the front roller shaft are rotatably connected with the fixed plate and the lifting turn plate in sequence from the inside to the outside, a lifting frame support tube is provided at the front end of the front roller shaft, a fixed bracket is provided at the front end of the lifting frame support tube, a first brake component is provided on the outside of the lifting frame support tube, and second brake components are provided at both ends of the fixed plate, and the first brake component and the second brake component cooperate with each other to adjust the slope of the treadmill platform.

2. The slope adjustment mechanism of a treadmill according to claim 1, characterized in that: The first braking component includes a handle, and a steel cable pull plate is fixed below both ends of the handle. One end of the steel cable pull plate is rotatably connected to a connecting plate, and the connecting plate is fixed to the lifting frame support tube. The other end of the steel cable pull plate is provided with a card interface, and a steel cable pressure plate is provided below the card interface. One side of the steel cable pressure plate is fixed to the lifting frame support tube, and the other side is connected to the brake cable.

3. The slope adjustment mechanism of a treadmill platform according to claim 2, characterized in that: The brake cable is provided with a clamping joint at both ends, one of the clamping joints at both ends of the brake cable is provided with a clamping groove, and the other clamping joint is provided with an adjusting nut. The brake cable is provided with an inner steel wire, and the inner steel wire can move inside the brake cable. A clamping block is provided at each end of the inner steel wire, and the cable pressure plate is provided with a U-shaped groove. The clamping groove of the brake cable clamping joint is matched and plugged with the U-shaped groove of the cable pressure plate. Limiting steel wires are fixed on both sides of the U-shaped groove to limit the brake cable, and the clamping interface of the cable pull plate is matched and clamped with the clamping block of the inner steel wire.

4. The slope adjustment mechanism of a treadmill platform according to claim 3, characterized in that: The handle is fixed to the steel cable pull plate by bolts, the connecting plate is welded to the lifting frame support tube, the connecting plate is hingedly connected to the steel cable pull plate so that the steel cable pull plate rotates around the connecting plate, and the steel cable pressure plate is welded to the lifting frame support tube.

5. The slope adjustment mechanism of a treadmill platform according to claim 4, characterized in that: A roller is provided at the lower end of the fixed bracket, and the side of the lifting turn plate away from the front roller shaft is fixed to the lifting bracket support pipe bolt.

6. The slope adjustment mechanism of a treadmill platform according to claim 3, characterized in that: The second brake component includes a U-shaped plate, a fixing seat I is fixed at the front end of the U-shaped plate, and the end of the lifting and rotating plate connected to the fixing bracket extends toward the top to form a fixing seat II, and the fixing seat I is bolted to the fixing seat II, and a controllable spring joint is fixed at the opening of the U-shaped plate, and a bolt hole is opened at one end of the controllable spring joint, and a piston rod is bolted in the bolt hole of the controllable spring joint, and a valve is provided at the end where the piston rod is fixed to the controllable spring joint, and the top of the valve is against the valve switch, and the end of the valve switch away from the valve extends outward to form a steel cable connection port, and the clamping joint at the other end of the brake steel cable is fixed to the controllable spring joint by an adjusting nut, and the steel cable connection port is clamped with the clamping block at the other end of the steel wire in the brake steel cable, the valve switch is hinged to the controllable spring joint, and the valve switch rotates around the hinge, and the end of the piston rod away from the valve switch is connected to the controllable spring.

7. The slope adjustment mechanism of a treadmill platform according to claim 6, characterized in that: The fixed plate and the lifting and rotating plate are provided with roller holes at positions corresponding to the two ends of the front roller shaft. The roller holes are connected to the front roller shaft through bearings, and the front roller shaft can rotate in the roller holes. A plastic gasket is placed between the fixed plate and the lifting and rotating plate. A fixing hole is provided on one side of the roller hole. The fixing hole is connected to a universal ball joint, and the other end of the universal ball joint is fixed to the bolt at the tail of the controllable spring.

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