An elliptical machine with adjustable incline

Abstract

The utility model belongs to the technical field of elliptical machine, especially involves a slope adjustable elliptical machine. A slope adjustable elliptical machine, include: frame, swing arm, its rotation is connected in the left and right sides of frame, the lower extreme of swing arm is equipped with foot rest mechanism, wherein, foot rest mechanism includes: first foot rest pipe, one end is hinged with swing arm, second foot rest pipe, with first foot rest pipe's other end swing joint, be equipped with footboard on second foot rest pipe, through the included angle between first foot rest pipe and second foot rest pipe is adjusted to change the slope of footboard, angle locking mechanism, be located in the connecting place of first foot rest pipe and second foot rest pipe, angle locking mechanism includes the locking piece of lockable first foot rest pipe and second foot rest pipe between included angle. The utility model has the advantage that user can adjust the slope of elliptical machine.

Description

Technical Field

[0001] This utility model belongs to the field of elliptical machine technology, and in particular relates to an elliptical machine with adjustable slope. Background Technology

[0002] To improve their physical fitness, many people use elliptical trainers for exercise. For example, Chinese Patent Application No. 201920482755.8 discloses an elliptical trainer, which includes a cantilever arm, a foot pedal assembly connected to the cantilever arm, a crank, a connecting rod, and rollers. A drive shaft is provided on the crank arm, and one end of the rollers and one end of the connecting rod are both sleeved on the drive shaft. The other end of the connecting rod is connected to the cantilever arm, and the foot pedal assembly is connected to the rollers.

[0003] The elliptical trainers described above have fixed ranges of motion and incline during training, resulting in fixed movement trajectories and achieving the same training needs. This makes them unsuitable for all training requirements. Therefore, it is necessary to design an elliptical trainer with an adjustable incline structure. By changing the incline, the movement trajectory can be altered, allowing users to perform more training movements and improving the practicality of the elliptical trainer. Utility Model Content

[0004] To address the shortcomings of existing technologies, an elliptical machine with an adjustable incline is provided.

[0005] This utility model is achieved using the following technical solution: an elliptical machine with adjustable slope, comprising:

[0006] frame;

[0007] A rocker arm is rotatably connected to the left and right sides of the frame, and a foot pedal mechanism is provided at the lower end of the rocker arm;

[0008] The foot pedal mechanism includes:

[0009] The first foot pedal tube has one end hinged to the rocker arm;

[0010] The second foot pedal tube is movably connected to the other end of the first foot pedal tube. The second foot pedal tube is equipped with a foot pedal. The slope of the foot pedal can be changed by adjusting the angle between the first foot pedal tube and the second foot pedal tube.

[0011] An angle locking mechanism is provided at the connection between the first foot pedal tube and the second foot pedal tube. The angle locking mechanism includes a locking element that can lock the included angle between the first foot pedal tube and the second foot pedal tube.

[0012] When using the pedal, the user first releases the locking mechanism from locking the first and second pedal tubes, then rotates the first and second pedal tubes to change the angle between them. After adjusting to a suitable pedal slope, the user locks the locking mechanism to lock the angle between the first and second pedal tubes to complete the pedal slope locking.

[0013] The frame also includes existing components such as a flywheel, crank, and linkage mechanism that enables the foot pedal mechanism to perform elliptical trajectory motion.

[0014] This design uses a first foot pedal tube and a second foot pedal tube to form a complete foot pedal assembly. An angle locking mechanism is installed between the first and second foot pedal tubes to achieve incline adjustment of the foot pedals, thus meeting different user exercise needs. Furthermore, the overall structure is simpler and will not affect or interfere with the frame, rocker arm, or other components on the frame.

[0015] Preferably, the angle locking mechanism further includes a shift plate fixed to the second foot pedal tube, the shift plate having a plurality of shift insertion holes spaced apart along its length, and the first foot pedal tube having a locking hole adapted to the shift insertion holes; or

[0016] The angle locking mechanism also includes a shift plate fixed on the first foot tube, the shift plate having a plurality of shift holes spaced apart along its length, and the second foot tube having a locking hole adapted to the shift holes.

[0017] The locking hole is selectively connected and fixed to the gear shift holes at different positions by a detachable locking component.

[0018] The first and second pedal tubes are secured by a locking element that passes through both the locking hole and the gear shift hole. The gear shift lever can be hinged to either the first or second pedal tube, so the locking hole is not necessarily located on the rotation path of the gear shift lever.

[0019] Preferably, the side wall of the end of the locking member is provided with an elastic protrusion that can move in the radial direction, and the elastic protrusion can restrict the locking member from disengaging from the locking hole and the stop hole.

[0020] The movement of the locking element can be restricted by the elastic protrusion, thus preventing the locking element from slipping out of the locking hole when the angle does not need to be adjusted.

[0021] Preferably, the angle locking mechanism further includes a shift plate fixed to the second pedal tube, the shift plate having a plurality of shift holes spaced apart along its length, and the locking element being a resilient pin fixed to the first pedal tube, the resilient pin being selectively inserted into the shift holes; or

[0022] The angle locking mechanism also includes a shift plate fixed on the first pedal tube. The shift plate has a plurality of shift holes spaced apart along its length. The locking element is an elastic pin fixed on the second pedal tube. The elastic pin can be selectively inserted into the shift holes.

[0023] The locking element can be any existing indexing pin, which is fixed to the first or second foot pedal tube by screwing.

[0024] Preferably, the shift plate is arc-shaped, and the locking hole is located on the moving path of the shift socket.

[0025] The shift lever is arc-shaped to correspond to the rotation path of the first and second pedal tubes.

[0026] Preferably, the shift plate is arc-shaped, and the elastic pin is located on the moving path of the shift socket.

[0027] The shift lever is arc-shaped to correspond to the rotation path of the first and second pedal tubes.

[0028] Preferably, the angle locking mechanism further includes a first connector and a second connector respectively fixed on the first foot pedal tube and the second foot pedal tube. The first connector and the second connector are connected by a rotating shaft, which is fixed to one of the connectors and rotatably connected to the other connector.

[0029] The connecting piece rotatably connected to the rotating shaft can move axially on the rotating shaft, thereby enabling the first foot tube and the second foot tube to move closer or further apart. A locking structure is provided between the first connecting piece and the second connecting piece to fix them after they come into contact with each other.

[0030] The locking element passes through the first foot pedal tube or the second foot pedal tube and is threaded into the shaft.

[0031] When the locking element is tightened, the first connecting element and the second connecting element contact each other, and the locking structure between them fixes the angle between the first foot tube and the second foot tube.

[0032] When the locking element is loosened, the first and second connecting elements can disengage from each other, allowing the first and second foot pedal tubes to rotate.

[0033] One connector is fixed to the pivot, while another connector is rotatably connected to the pivot and can move axially on it. When the first and second connectors are not in contact, the rotatable connector disengages from the fixed connector, allowing it to rotate on the pivot. This changes the angle between the first and second pedal tubes, thus altering the pedal's slope. When the locking mechanism is tightened, it brings the first and second pedal tubes closer together, eventually bringing the first and second connectors into contact. At this point, the locking structure secures the first and second connectors together, preventing them from rotating and thus locking the angle between them.

[0034] The locking structure can be achieved by having one connector with an axially extending protrusion and another connector with an axially extending opening, with the protrusion and opening interlocking to lock the two together. Alternatively, both connectors can have toothed rings that can mesh with each other. The rotating shaft also enables the rotational connection between the first and second foot pedal tubes.

[0035] Preferably, the first connector and the second connector are coaxially arranged, and the locking structure is provided with toothed rings that can mesh with each other on the end faces of the first connector and the second connector facing each other.

[0036] The teeth of the gear ring are relatively close together, which makes it easier to lock the first and second connectors, and the accuracy is also high after engagement, without large deviations.

[0037] Preferably, the locking element is a quick-release screw, which includes a screw section and a rotating handle.

[0038] The quick-release screw allows for rapid locking and unlocking, making it convenient for users.

[0039] Preferably, the length of the second foot pedal tube is greater than the length of the first foot pedal tube, and a handle is provided at the end of the second foot pedal tube near the first foot pedal tube.

[0040] The second pedal tube is longer than the first pedal tube, and the lever arm of the second pedal tube is longer. A handle is provided at the end of the second pedal tube near the first pedal tube, which makes it easier for the user to hold the handle and adjust the angle.

[0041] Compared with the prior art, the advantages of this utility model are as follows: This solution uses a first foot pedal tube and a second foot pedal tube to form a whole foot pedal tube, and sets an angle locking mechanism between the first foot pedal tube and the second foot pedal tube to realize the slope adjustment of the foot pedal to meet the different exercise needs of users. Moreover, the overall structure is simpler and will not affect or interfere with the frame, rocker arm and other components on the frame. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of the utility model;

[0043] Figure 2 for Figure 1 Another structural diagram from another perspective;

[0044] Figure 3 This is a schematic diagram of the swing arm, foot pedal mechanism, and angle locking mechanism in Example 1.

[0045] Figure 4 This is a schematic diagram of the locking component in Example 1;

[0046] Figure 5 This is a schematic diagram of a structure after angle adjustment;

[0047] Figure 6 This is a schematic diagram of another structure after angle adjustment;

[0048] Figure 7 This is a schematic diagram of the foot pedal mechanism and angle locking mechanism in Example 2;

[0049] Figure 8 for Figure 7 Exploded view;

[0050] Figure 9 for Figure 7 A sectional view.

[0051] Reference numerals: 1. Frame; 2. Flywheel; 3. Crank; 31. Roller; 32. Connecting rod; 4. Rocker arm; 51. First foot pedal tube; 511. Extension section; 52. Second foot pedal tube; 6. Foot pedal; 7. Pin; 71. Gear plate; 711. Gear socket; 72. Elastic protrusion; 81. First connector; 82. Second connector; 83. Quick-release screw; 831. Screw section; 832. Handle; 84. Shaft. Detailed Implementation

[0052] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0053] Example 1

[0054] like Figures 1 to 6As shown, this embodiment 1 discloses an elliptical machine with adjustable incline, including a frame 1 extending in the front-to-back direction. A flywheel 2 is provided on the rear side of the frame, and the flywheel 2 has an existing magnetic damping system. Cranks 3 are provided on the left and right sides of the flywheel 2. Rocker arms 4 are rotatably connected to the left and right sides of the front end of the frame 1, and the upper end of the rocker arms 4 is provided with a handrail for the user to grip. A linkage mechanism is provided between the cranks and the rocker arms 4. The linkage mechanism includes a roller 31 rotatably connected to the end of the crank 3, and a connecting rod 32 connecting the rocker arms 4 and the crank 3. The two ends of the connecting rod 32 are hinged to the rocker arms 4 and the crank 3, respectively.

[0055] A foot pedal mechanism is rotatably connected to the lower end of the rocker arm 4. The foot pedal mechanism includes a first foot pedal tube 51 and a second foot pedal tube 52. One end of the first foot pedal tube 51 is hinged to the rocker arm 4, and the other end of the first foot pedal tube 51 is hinged to the second foot pedal tube 52. The rear end of the second foot pedal tube 52 is supported on the roller 31, and a foot pedal 6 is provided at the rear end of the second foot pedal tube 52. When the flywheel 2 rotates, the second foot pedal tube 52 slides on the roller 31, thereby converting the circular motion of the crank 3 into an elliptical trajectory.

[0056] The length of the second foot pedal tube 52 is greater than the length of the first foot pedal tube 51, and a handle is provided at the end of the second foot pedal tube 52 near the first foot pedal tube 51 (not shown in the figure).

[0057] An angle locking mechanism is provided at the connection between the first pedal tube 51 and the second pedal tube 52. The angle locking mechanism includes a shift plate 71 fixed to the second pedal tube 52. The shift plate 71 is arc-shaped and has several shift insertion holes 711 evenly spaced along its length. There are two shift plates 71, which are integrally formed and located on the left and right sides of the first pedal tube 51 and the second pedal tube 52. At the lower end of the first pedal tube 51, there is a downwardly extending section 511, which has locking holes (not shown in the figure) that are adapted to the shift insertion holes 711. When the first pedal tube 51 and the second pedal tube 52 rotate, the locking hole is located on the movement path of the gear position socket 711. The gear position socket 711 is equipped with a locking element, which is a pin 7. The end of the pin 7 is provided with an elastic protrusion 72 that can move in the radial direction. After the pin 7 passes through the two gear position sockets 711 and the locking hole, the angle of the first pedal tube 51 and the second pedal tube 52 can be limited. The elastic protrusion 72 can prevent the pin 7 from disengaging from the locking hole and the gear position socket 711. The radial movement of the elastic protrusion 72 can be achieved by installing a spring or leaf spring inside the pin 7.

[0058] In the above-mentioned scheme, the gear shift plate 71 can also be set on the first foot pedal tube 51, and the locking hole can be set on the second foot pedal tube 52.

[0059] In some other embodiments, the angle locking mechanism may further include an arc-shaped stop plate 71 fixed to the second pedal tube. The stop plate 71 has a stop hole 711, and the locking element is an elastic pin (not shown in the figure) fixed to the first pedal tube 51. The elastic pin can be any existing indexing pin, and the elastic pin is located on the movement path of the stop hole 711. The elastic pin is threaded into the first pedal tube 51 and passes through the first pedal tube 51. The user can insert or release the elastic pin into the stop hole 711 by pulling. Alternatively, the arc-shaped stop plate 71 in the above solution can be disposed on the first pedal tube 51, and the elastic pin can be disposed on the second pedal tube 52.

[0060] Example 2

[0061] like Figures 7 to 9 As shown, the difference between Embodiment 2 and Embodiment 1 is that the connection between the first foot pedal tube 51 and the second foot pedal tube 52 has an overlapping portion in the left-right direction. The angle locking mechanism also includes a first connector 81 and a second connector 82, which are respectively welded and fixed to the first foot pedal tube 51 and the second foot pedal tube 52.

[0062] Both the first connector 81 and the second connector 82 are cylindrical and coaxially arranged, with meshing gear rings on their mutually facing end faces. Both the first connector 81 and the second connector 82 have a central hole.

[0063] One end of the rotating shaft 84 extends into the central hole of the first connecting member 81, and the two are fixed together by welding. The other end of the rotating shaft 84 extends into the second connecting member 82, and the second connecting member 82 and the rotating shaft 84 are rotatably connected. The second connecting member 82 can move along the axial direction of the rotating shaft 84, thereby enabling the first connecting member 81 and the second connecting member 82 to move closer or further apart, so that the gear rings of the first connecting member 81 and the second connecting member 82 are engaged or disengaged. When the gear rings of the first connecting member 81 and the second connecting member 82 are engaged, the first foot pedal tube 51 and the second foot pedal tube 52 are fixedly connected and cannot rotate, thus locking the angles on the first foot pedal tube 51 and the second foot pedal tube 52. When the gear rings of the first connecting member 81 and the second connecting member 82 are not engaged, the second foot pedal tube 52 can rotate, so that the angles of the first foot pedal tube 51 and the second foot pedal tube 52 can be adjusted.

[0064] The rotating shaft 84 is hollow and has an internal threaded hole. The locking component is the existing quick-release screw 83. The quick-release screw 83 includes a screw section 831 and a rotating handle 832. The screw section 831 passes through the second foot tube 52 and is threadedly engaged with the rotating shaft 84. The quick-release screw 83 achieves the switching between the engagement and disengagement of the gear rings of the first connecting member 81 and the second connecting member 82 by screwing.

[0065] When the quick-release screw 83 is tightened, the gear rings of the first connector 81 and the second connector 82 engage, and the angles of the first foot pedal tube 51 and the second foot pedal tube 52 are fixed; when the quick-release screw 83 is loosened, the gear rings of the first connector 81 and the second connector 82 can disengage from each other, allowing the first foot pedal tube 51 and the second foot pedal tube 52 to rotate relative to each other.

[0066] In the above-mentioned method, the rotating shaft 84 can also be fixed together with the second connecting member 82, the rotating shaft 84 is rotatably connected to the first connecting member 81, and the quick-release screw 83 passes through the first foot tube 51.

[0067] In use, the user can first unlock the angle locking mechanism to lock the first foot pedal tube 51 and the second foot pedal tube 52, and then pull the handle to adjust the angle between the first foot pedal tube 51 and the second foot pedal tube 52, thereby adjusting the foot pedal 6 to have different slopes. After adjusting to a suitable angle, the angle between the first foot pedal tube 51 and the second foot pedal tube 52 is locked by the locking member, thus completing the slope locking of the foot pedal 6.

Claims

1. An elliptical machine with adjustable slope, characterized in that, include: frame; A rocker arm is rotatably connected to the left and right sides of the frame, and a foot pedal mechanism is provided at the lower end of the rocker arm; The foot pedal mechanism includes: The first foot pedal tube has one end hinged to the rocker arm; The second foot pedal tube is movably connected to the other end of the first foot pedal tube. The second foot pedal tube is equipped with a foot pedal. The slope of the foot pedal can be changed by adjusting the angle between the first foot pedal tube and the second foot pedal tube. An angle locking mechanism is provided at the connection between the first foot pedal tube and the second foot pedal tube. The angle locking mechanism includes a locking element that can lock the included angle between the first foot pedal tube and the second foot pedal tube.

2. The elliptical trainer with adjustable slope according to claim 1, characterized in that: The angle locking mechanism further includes a shift plate fixed to the second pedal tube, the shift plate having a plurality of shift holes spaced apart along its length, and the first pedal tube having a locking hole adapted to the shift holes; or The angle locking mechanism further includes a shift plate fixed on the first foot tube, the shift plate having a plurality of shift holes spaced apart along its length, and the second foot tube having a locking hole adapted to the shift holes. The locking hole is selectively connected and fixed to the gear shift holes at different positions by a detachable locking component.

3. The elliptical machine with adjustable slope according to claim 2, characterized in that: The locking member has an elastic protrusion on the side wall of its end that can move in the radial direction, and the elastic protrusion can restrict the locking member from disengaging from the locking hole and the position socket.

4. The elliptical machine with adjustable slope according to claim 1, characterized in that: The angle locking mechanism further includes a shift plate fixed to the second pedal tube. The shift plate has several shift holes spaced apart along its length. The locking element is a resilient pin fixed to the first pedal tube, which can be selectively inserted into the shift holes; or The angle locking mechanism also includes a shift plate fixed on the first pedal tube. The shift plate has a plurality of shift holes spaced apart along its length. The locking element is an elastic pin fixed on the second pedal tube. The elastic pin can be selectively inserted into the shift holes.

5. The elliptical machine with adjustable slope according to claim 2 or 3, characterized in that: The gear shift plate is arc-shaped, and the locking hole is located on the moving path of the gear shift socket.

6. The elliptical machine with adjustable slope according to claim 4, characterized in that: The shift plate is arc-shaped, and the elastic pin is located on the moving path of the shift socket.

7. The elliptical machine with adjustable slope according to claim 1, characterized in that: The angle locking mechanism further includes a first connector and a second connector respectively fixed on the first foot tube and the second foot tube. The first connector and the second connector are connected by a rotating shaft. The rotating shaft is fixed to one of the connectors and rotatably connected to the other connector. The connecting piece rotatably connected to the rotating shaft can move axially on the rotating shaft, thereby enabling the first foot tube and the second foot tube to move closer or further apart. A locking structure is provided between the first connecting piece and the second connecting piece to fix them after they come into contact with each other. The locking element passes through the first foot pedal tube or the second foot pedal tube and is threaded into the shaft. When the locking element is tightened, the first connecting element and the second connecting element contact each other, and the locking structure between them fixes the angle between the first foot tube and the second foot tube. When the locking element is loosened, the first and second connecting elements can disengage from each other, allowing the first and second foot pedal tubes to rotate.

8. The elliptical machine with adjustable slope according to claim 7, characterized in that: The first connector and the second connector are coaxially arranged, and the locking structure is provided with toothed rings that can mesh with each other on the end faces of the first connector and the second connector that face each other.

9. The elliptical machine with adjustable slope according to claim 7 or 8, characterized in that: The locking component is a quick-release screw, which includes a screw section and a rotating handle.

10. The elliptical machine with adjustable slope according to claim 1, characterized in that: The second foot pedal tube is longer than the first foot pedal tube, and a handle is provided at the end of the second foot pedal tube closest to the first foot pedal tube.

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