Elliptical machine

Abstract

The elliptical machine comprises a machine frame, a handrail, a pedal assembly, a crank device, an amplification connecting rod and a range limiting rocker, the machine frame comprises a bottom frame, a first supporting frame and a second supporting frame, the first supporting frame and the second supporting frame are arranged at the front end and the rear end of the bottom frame respectively, the handrail is pivoted to the first supporting frame, and the pedal assembly comprises a pedal and a pedal rod suitable for supporting the pedal. The pedal rod comprises a pedal front end and a pedal rear end, the pedal front end is pivoted with the lower end of the handrail, the crank device is pivoted with the second support frame and can complete the whole-circle circular motion, the amplification connecting rod comprises a connecting rod driving end and a connecting rod driven end, the amplification connecting rod is pivoted with the crank device, the connecting rod driven end is pivoted with the pedal rear end, one end of the range-limiting rocker is pivoted with the chassis, and the other end of the range-limiting rocker is pivoted with the chassis. And the other end is pivoted with the driving end of the connecting rod. The amplification connecting rod is arranged to enlarge the movement radius of the rear end of the pedal of the small elliptical machine, so that the rear end of the pedal can drive the pedal to do non-circumferential movement similar to an ellipse in a plane.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, in particular to an elliptical machine. Background Art

[0002] As people's living standards improve, more and more people are choosing to purchase elliptical machines for home exercise. Elliptical machines can train and stimulate the sciatic nerve, enhance the endurance and strength of the lower back muscles, and target the hips, thighs, flanks, and lower abdomen for a full-body body shaping effect. Elliptical machines can be divided into front-mounted and rear-mounted flywheel models. While front-mounted flywheel models offer greater workout intensity, they are larger in size. Rear-mounted flywheel models often have a limited stride length, which can hinder the proper training of certain muscle groups. Traditional small home elliptical machines are mostly rear-mounted flywheel models with a fixed stride length. Larger strides often require larger elliptical machines, which cannot achieve the desired stride length, limiting user experience. Utility Model Content

[0003] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide an elliptical machine to meet the needs of users.

[0004] To achieve the above purpose, the utility model provides an elliptical machine, comprising

[0005] The frame includes a base frame, a first support frame and a second support frame respectively arranged at the front and rear ends of the base frame,

[0006] an armrest pivotally connected to the first support frame,

[0007] The pedal assembly includes a footrest and a footrest rod suitable for supporting the footrest, wherein the footrest rod includes a footrest front end and a footrest rear end, and the footrest front end is pivotally connected to the lower end of the armrest.

[0008] a crank device, which is pivotally connected to the second support frame and can complete a full circular motion,

[0009] An amplifying connecting rod, comprising an active connecting rod end and a driven connecting rod end, wherein the amplifying connecting rod is pivotally connected to the crank device, and the driven connecting rod end is pivotally connected to the rear end of the pedal.

[0010] A travel-limiting rocker has one end pivotally connected to the base frame and the other end pivotally connected to the active end of the connecting rod.

[0011] As a preference, the center of the crank device is adapted to be pivotally connected to the second support frame via a second fixed axis, wherein:

[0012] The crank device includes a spoke tube, and the amplifying connecting rod is pivotally connected to one axial end of the spoke tube.

[0013] Alternatively, the crank device includes a plurality of spoke tubes, the midpoints of the spoke tubes cross and overlap to form the center of the crank device, and the spoke tubes are evenly distributed in the circumferential direction, and the amplifying connecting rod is pivotally connected to one axial end of one of the spoke tubes.

[0014] Preferably, the crank device includes two spoke tubes arranged in a cross shape.

[0015] As a preference, the midpoint of the amplifying connecting rod is pivotally connected to the crank device.

[0016] As a preference, the amplifying connecting rod includes a plurality of adjustment holes arranged along its length direction, and the active end of the connecting rod can be selectively pivotally connected to one of the adjustment holes to achieve adjustment of the stride.

[0017] Preferably, the base frame includes a first cross bar, a second cross bar and a longitudinal bar suitable for forming an I-shaped structure, the first support frame includes a first vertical pipe, the second support frame includes a second vertical pipe, the longitudinal bar is suitable for supporting the first vertical pipe and the second vertical pipe, the handrails are respectively pivoted to both sides of the first vertical pipe, the crank devices are respectively pivoted to both sides of the second vertical pipe, and the range-limiting rocker is pivoted to both sides of the longitudinal bar.

[0018] Preferably, the front end of the footrest is detachably pivoted to the lower end of the armrest through a first U-shaped seat, the first U-shaped seat includes a first base plate and two first wing plates, the lower end of the armrest is pivoted between the two first wing plates, the first base plate fits the upper surface of the front end of the footrest, and the first base plate and the front end of the footrest are detachably connected by a bolt structure.

[0019] Preferably, the rear end of the pedal is detachably pivoted to the amplifying connecting rod through a second U-shaped seat, the second U-shaped seat includes a second base plate and two second wing plates, the rear end of the pedal is suitable for extending between the second wing plates and is detachably fixed by a bolt structure, and the second base plate is fixedly connected or integrally connected to a bearing seat suitable for pivoting the amplifying connecting rod.

[0020] As a preference, it also includes a resistance device arranged on the longitudinal rod, the resistance device includes a flywheel located between the first support frame and the second support frame, and the flywheel is belt-driven with the second fixed shaft to provide resistance.

[0021] Preferably, the frame includes two resistance brackets, the flywheel is hinged between the resistance brackets, the flywheel moves synchronously with the first pulley, the second fixed shaft is sleeved on the second pulley, the second pulley moves synchronously with the crank device, and the first pulley and the second pulley are connected by a V-belt transmission.

[0022] Preferably, the second pulley is arranged between the crank device and the second riser.

[0023] Preferably, the resistance device includes a magnetic brake pad surrounding the flywheel, and an adjustment knob is provided on the side of the first support frame facing the human body. The adjustment knob is transmission-connected to the magnetic brake pad, and the adjustment knob is suitable for adjusting the resistance by changing the distance between the flywheel and the magnetic brake pad.

[0024] The beneficial effects of the utility model are:

[0025] (1) By setting an amplifying link, the movement radius of the rear end of the pedal of the small elliptical machine is enlarged, thereby enlarging the stride. The rotational movement of the crank device is transmitted to the limit rocker through the amplifying link. When the crank device rotates, the amplifying link moves in a circular motion with the crank device, and one end of the amplifying link drives the rocker to swing back and forth. The length of the limit link forms a constraint between the crank device and the limit rocker. The other end of the amplifying link drives the rear end of the pedal to form an elliptical trajectory, so that the rear end of the pedal can drive the pedal to make a non-circular movement similar to an ellipse in a plane.

[0026] (2) Designing the crank device into a spoke-like structure can increase symmetry and structural strength, provide a more stable motion platform, and make the crank rotation smoother and more stable.

[0027] (3) The frame is designed to be lightweight, and the resistance device is set between the first support frame and the second support frame. The layout is compact, which optimizes space utilization, shortens the longitudinal size, and is more in line with the miniaturization needs of home fitness.

[0028] (4) The detachable connection between the foot pedal, the armrest and the amplifying link allows the armrest and the amplifying link to be folded and packed, thereby reducing packaging, storage and transportation costs and making it more suitable for online shopping and express delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention provides a schematic structural diagram of an elliptical machine.

[0030] Figure 2 This is a schematic diagram of the assembly of the crank device, amplifying connecting rod and limiting rocker provided by the utility model.

[0031] Figure 3 This is a structural schematic diagram of the first U-shaped seat provided by the utility model.

[0032] In the figure, the first cross bar 101, the second cross bar 102, the longitudinal bar 103, the first vertical tube 104, the second vertical tube 105, the first fixed shaft 106, the second fixed shaft 107, the resistance bracket 108, the handrail 109, the pedal 110, the pedal rod 111, the pedal front end 112, the pedal rear end 113, the crank device 114, the spoke tube 115, the amplifying connecting rod 116, the connecting rod active end 117, the connecting rod driven end 118, the range limiting rocker 119, the first U-shaped seat 120, the second U-shaped seat 121, the first base plate 122, the first wing plate 123, the second base plate 124, the second wing plate 125, the bearing seat 126, the flywheel 127, and the second pulley 128. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0035] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] like Figure 1-3An elliptical machine includes a frame, armrests 109, a pedal assembly, a crank device 114, an amplifying connecting rod 116, and a range-limiting rocker 119. The frame includes a base frame, a first support frame, and a second support frame. The base frame includes a first crossbar 101, a second crossbar 102, and a longitudinal bar 103 adapted to form an I-shaped structure. The first support frame includes a first vertical tube 104, and the second support frame includes a second vertical tube 105. The front and rear ends of the longitudinal bar 103 are adapted to respectively support the first and second vertical tubes 104, 105. The armrests 109 are pivotally connected to both sides of the first vertical tube 104 via a first fixed shaft 106. The pedal assembly includes a footrest 110 and a footrest rod 111 adapted to support the footrest 110. The footrest rod 111 includes a footrest front end 112 and a footrest rear end 113. The footrest front end 112 is pivotally connected to the lower end of the armrest 109. The crank assembly 114 comprises two cross-shaped spoke tubes 115, the midpoints of which intersect and overlap to form the center of the crank assembly 114. The center of the crank assembly 114 is adapted to be pivotally connected to both sides of the second vertical tube 105 via the second fixed shaft 107, allowing for full circular motion. An amplifier connecting rod 116 comprises a driving end 117 and a driven end 118. The midpoint of the amplifier connecting rod 116 is pivotally connected to one axial end of one of the spoke tubes 115, while the driven end 118 is pivotally connected to the rear end 113 of the pedal. A travel limiter rocker 119 has one end pivotally connected to the outer side of the longitudinal rod 103 and its other end pivotally connected to the driving end 117.

[0037] In some other embodiments, the amplifying connecting rod 116 includes a plurality of adjustment holes arranged along its length, and the connecting rod active end 117 can be selectively pivoted to one of the adjustment holes to adjust the stride.

[0038] In this embodiment, the front end 112 of the pedal is detachably pivoted to the lower end of the armrest 109 via a first U-shaped seat 120. The first U-shaped seat 120 includes a first base plate 122 and two first wing plates 123. The lower end of the armrest 109 is pivotally connected between the two first wing plates 123. The first base plate 122 fits the upper surface of the front end 112 of the pedal. The first base plate 122 and the front end 112 of the pedal are detachably connected via a bolt structure. The rear end 113 of the pedal is detachably pivoted to the amplification link 116 via a second U-shaped seat 121. The second U-shaped seat 121 includes a second base plate 124 and two second wing plates 125. The rear end 113 of the pedal is adapted to extend between the second wing plates 125 and be detachably secured via a bolt structure. The second base plate 124 is fixedly connected or integrally connected to a bearing seat 126 adapted to pivotally connect the amplification link 116.

[0039] In this embodiment, the frame includes two resistance brackets 108 positioned between the first vertical tube 104 and the second vertical tube 105. A flywheel 127, suitable for forming a resistance device, is hingedly connected between the resistance brackets 108. The flywheel 127 is belt-driven to the second fixed shaft 107 to provide resistance. Specifically, the flywheel 127 moves synchronously with the first pulley. The second fixed shaft 107 is mounted on a second pulley 128, which is disposed between a crank assembly 114 and the second vertical tube 105. The second pulley 128 moves synchronously with the crank assembly 114. The first and second pulleys 128 are connected by a V-belt transmission.

[0040] In some embodiments, the resistance device also includes a magnetic brake pad surrounding the flywheel 127. An adjustment knob is provided on the side of the first vertical tube 104 facing the human body. The adjustment knob is transmission-connected to the magnetic brake pad. The adjustment knob is suitable for adjusting the resistance by changing the distance between the flywheel 127 and the magnetic brake pad.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An elliptical machine, characterized in that: include The frame includes a base frame, a first support frame and a second support frame respectively arranged at the front and rear ends of the base frame, an armrest pivotally connected to the first support frame, The pedal assembly includes a footrest and a footrest rod suitable for supporting the footrest, wherein the footrest rod includes a footrest front end and a footrest rear end, and the footrest front end is pivotally connected to the lower end of the armrest. a crank device, which is pivotally connected to the second support frame and can complete a full circular motion, An amplifying connecting rod, comprising an active connecting rod end and a driven connecting rod end, wherein the amplifying connecting rod is pivotally connected to the crank device, and the driven connecting rod end is pivotally connected to the rear end of the pedal. A travel-limiting rocker has one end pivotally connected to the base frame and the other end pivotally connected to the active end of the connecting rod.

2. An elliptical machine according to claim 1, characterized in that: The center of the crank device is adapted to be pivotally connected to the second support frame via a second fixed axis, wherein: The crank device includes a spoke tube, and the amplifying connecting rod is pivotally connected to one axial end of the spoke tube. Alternatively, the crank device includes a plurality of spoke tubes, the midpoints of the spoke tubes cross and overlap to form the center of the crank device, and the spoke tubes are evenly distributed in the circumferential direction, and the amplifying connecting rod is pivotally connected to one axial end of one of the spoke tubes.

3. An elliptical machine according to claim 2, characterized in that: The crank device includes two spoke tubes arranged in a cross shape.

4. The elliptical machine according to claim 2, characterized in that: The midpoint of the amplifying connecting rod is pivotally connected to the crank device, and / or the amplifying connecting rod includes a plurality of adjustment holes arranged along its length direction, and the active end of the connecting rod can be selectively pivotally connected to one of the adjustment holes to adjust the stride.

5. The elliptical machine according to claim 4, characterized in that: The base frame includes a first cross bar, a second cross bar and a longitudinal bar suitable for forming an I-shaped structure. The first support frame includes a first vertical pipe, the second support frame includes a second vertical pipe, and the longitudinal bar is suitable for supporting the first vertical pipe and the second vertical pipe. The handrails are respectively pivoted to both sides of the first vertical pipe, the crank devices are respectively pivoted to both sides of the second vertical pipe, and the travel-limiting rocker is pivoted to both sides of the longitudinal bar.

6. The elliptical machine according to claim 5, characterized in that: The front end of the footrest is detachably pivoted to the lower end of the armrest via a first U-shaped seat, the first U-shaped seat comprising a first base plate and two first wing plates, the lower end of the armrest is pivotally connected between the two first wing plates, the first base plate fits in contact with the upper surface of the front end of the footrest, and the first base plate and the front end of the footrest are detachably connected via a bolt structure; And / or, the rear end of the pedal is detachably pivoted to the amplifying connecting rod through a second U-shaped seat, the second U-shaped seat includes a second base plate and two second wing plates, the rear end of the pedal is suitable for extending between the second wing plates and is detachably fixed by a bolt structure, and the second base plate is fixedly connected or integrally connected to a bearing seat suitable for pivoting the amplifying connecting rod.

7. The elliptical machine according to claim 5, characterized in that: It also includes a resistance device arranged on the longitudinal rod, and the resistance device includes a flywheel located between the first support frame and the second support frame, and the flywheel is belt-driven with the second fixed shaft to provide resistance.

8. The elliptical machine according to claim 7, characterized in that: The frame includes two resistance brackets, the flywheel is hinged between the resistance brackets, the flywheel moves synchronously with the first pulley, the second fixed shaft is sleeved on the second pulley, the second pulley moves synchronously with the crank device, and the first pulley and the second pulley are connected by a V-belt transmission.

9. The elliptical machine according to claim 8, characterized in that: The second pulley is disposed between the crank assembly and the second riser.

10. The elliptical machine according to claim 7, characterized in that: The resistance device includes a magnetic brake pad surrounding the flywheel. An adjustment knob is provided on the side of the first support frame facing the human body. The adjustment knob is transmission-connected to the magnetic brake pad. The adjustment knob is suitable for adjusting the resistance by changing the distance between the flywheel and the magnetic brake pad.

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