Elliptical machine with adjustable step pitch

Abstract

The utility model relates to the field of fitness equipment, in particular to an elliptical machine with an adjustable step pitch. The device comprises a machine base and a rocker arm treading assembly. A counterweight disc is rotatably arranged at the rear part of the base, and a mounting rod is arranged at the front part of the base and is higher than the counterweight disc; the two rocker arm treading assemblies are oppositely distributed on the two sides of the balance weight disc. Comprising a swing arm, a connecting frame connected to the front end of the swing arm, a mounting sleeve eccentrically distributed with a counterweight disc and connected to the rear end of the swing arm, a rotating shaft penetrating through the mounting sleeve and rotationally connected with the counterweight disc and the mounting sleeve, a connecting plate connected with the outer end of the rotating shaft, and a pedal assembly arranged on the swing arm in a rolling mode. The two ends of the connecting rod assembly are rotationally connected with the connecting plate and the pedal assembly respectively, the rocker is rotationally connected with the connecting frame and the mounting rod, the included angle between the two rotating shafts with the center shaft of the balance weight disc as the center is 180 degrees, and the connecting plate is provided with a plurality of rotating connecting holes. According to the utility model, the corresponding step pitch can be adjusted according to the height of a user so as to carry out comfortable exercise.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of body -building apparatus, in particular to an elliptical machine with adjustable stride. BACKGROUND

[0002] The elliptical machine is a common cardiopulmonary fitness exercise training tool, and the movement mode of the elliptical machine is similar to the action of cross-country skiing. The slope design, resistance adjustment function, programmed movement mode and the ability to specifically exercise certain tissues and muscles of the lower limbs of the elliptical machine make it a common exercise machine in professional gyms and living rooms.

[0003] Chinese patent publication No. CN220424468U discloses an elliptical machine and a training system, which comprises an elliptical machine assembly, a foot pedal mechanism, a rear end connected to the rotating part of the elliptical machine assembly, a support assembly arranged at the top of the elliptical machine assembly and located at the front end of the elliptical machine assembly, a handrail assembly with the bottom end rotatably connected to the front end of the foot pedal mechanism and the part close to the top rotatably connected to the middle upper position of the support assembly, the support assembly comprising a stand pipe rotatably connected to the handrail assembly, a folding piece arranged at the bottom end of the stand pipe, and a folding cover sleeve arranged at the bottom of the stand pipe and located above the folding piece. Without complex installation by the customer, the installation components are reduced, and the performance and abnormal noise problems caused by improper installation are avoided. The elliptical machine is small and does not occupy space, and can be placed in the balcony or living room as needed for easy exercise without being limited by space. The elliptical machine solves the technical problems of complex installation and large space occupation caused by the large number of installation components and the inability to fold and store.

[0004] However, the above technical solution has the following disadvantages:

[0005] When the user exercises by stepping on the foot pedal mechanism, the stride of the foot movement is fixed, and the strides of different height users are different. The elliptical machine with fixed stride is not suitable for comfortable exercise for users of different heights. INVENTION CONTENTS

[0006] The utility model aims at the problems in the background art and provides an elliptical machine with adjustable stride, which can adjust the corresponding stride according to the height of the user for comfortable exercise.

[0007] The utility model discloses a technical scheme, an elliptical machine of adjustable step distance, including frame and rocker arm pedal assembly, the rear part of frame is rotationally arranged with counterweight disc, and the front part is provided with mounting rod, and the height of mounting rod is higher than the height of counterweight disc, and the rocker arm pedal assembly is oppositely distributed two groups on both sides of counterweight disc, including swing arm, the connecting frame connected in swing arm front end, with the eccentric distribution and being connected in swing arm rear end of counterweight disc, the rotating shaft of the penetration mounting sleeve and the rotating connection of counterweight disc and mounting sleeve, the connecting plate connected with rotating shaft outer end, the pedal assembly of rolling setting on swing arm, the connecting rod assembly of both ends respectively with connecting plate and pedal assembly rotating connection and the rocker lever of rotating connection with connecting frame and mounting rod, and the connecting rod assembly and connecting plate rotating connection center shaft are parallelly distributed with rotating shaft, and the included angle of two rotating shafts is 180 DEG with the center of counterweight disc, and the connecting plate has a plurality of rotating connection holes, and a plurality of rotating connection holes are sequentially distributed along the direction of being away from the connecting plate and the connecting place of rotating shaft.

[0008] Preferably, the connecting rod assembly includes a connecting rod and first and second connecting heads connected to opposite ends of the connecting rod, and the first connecting head is rotatably connected to the connecting plate.

[0009] Preferably, the pedal assembly includes a moving frame, a connecting rod rotatably connected to the second connecting head and disposed on a side of the moving frame, a pedal disposed on a top of the moving frame, and a roller assembly rotatably disposed on the moving frame.

[0010] Preferably, a reinforcing plate is connected between the pedal and the moving frame, the pedal has a pedal groove distributed upward, and the pedal groove has anti-skid lines on a bottom thereof.

[0011] Preferably, the roller assembly includes three rollers in an inverted triangular distribution, two upper rollers are rolling disposed above the swing arm, and one lower roller is rolling disposed below the swing arm.

[0012] Preferably, guide plates are disposed on both sides of the swing arm, the guide plates include straight plate portions and two bent plate portions connected to opposite ends of the straight plate portions, and the rollers have rolling grooves matching the guide plates.

[0013] Preferably, the frame includes a base and a support frame obliquely disposed on the base, the counterweight disc is rotatably disposed on the base, and the mounting rod is disposed on the support frame.

[0014] Preferably, two fixed rods are symmetrically disposed on an upper portion of the support frame, and the fixed rods and the rocker levers have grips at top ends thereof.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The utility model discloses can adjust corresponding step distance according to user height, with comfortable exercise. When adjusting step distance, only need to adjust the rotating connection hole of first connecting head rotating connection in different positions of connecting plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is structure schematic diagram of upper side angle of the utility model embodiment;

[0018] Figure 2 It is structure schematic diagram of lower side angle of the utility model embodiment;

[0019] Figure 3 It is local structure schematic diagram of the utility model embodiment;

[0020] Figure 4 It is local structure sectional view of swing arm and guide plate.

[0021] Reference signs: 1, base; 2, counterweight disc; 3, mounting sleeve; 4, swing arm; 5, connecting frame; 6, rocker; 7, mounting rod; 8, fixed rod; 9, connecting plate; 10, connecting rod; 11, first connecting head; 12, second connecting head; 13, connecting rod; 14, moving frame; 15, roller; 16, pedal; 17, reinforcing plate; 18, guide plate; 19, support frame. DETAILED DESCRIPTION

[0022] As Figures 1-4 shown, the utility model discloses a kind of step distance adjustable elliptical machines, including machine base and rocker tread assembly, machine base includes base 1 and support frame 19 inclinedly arranged on base 1.

[0023] Counterweight disc 2 is rotatably arranged in the rear part of base 1, and mounting rod 7 is arranged in the front part of support frame 19, and the height of mounting rod 7 is higher than the height of counterweight disc 2. Two fixed rods 8 are symmetrically arranged on the upper part of support frame 19.

[0024] The rocker pedal assembly is oppositely arranged on both sides of the weight plate 2, each of the rocker pedal assemblies comprises a swing arm 4, a connecting frame 5 connected to the front end of the swing arm 4, a mounting sleeve 3 eccentrically arranged with the weight plate 2 and connected to the rear end of the swing arm 4, a rotating shaft penetrating through the mounting sleeve 3 and rotatably connected with the weight plate 2 and the mounting sleeve 3, a connecting plate 9 connected with the outer end of the rotating shaft, a pedal assembly rotatably arranged on the swing arm 4, a connecting rod assembly rotatably connected with the connecting plate 9 and the pedal assembly at both ends, and a rocker 6 rotatably connected with the connecting frame 5 and the mounting rod 7. The fixed rod 8 and the top end of the rocker 6 are both provided with a handle, which is convenient for the user to grasp. The user can simultaneously grasp the handles on the two rockers 6 or the handles on the two fixed rods 8. If the user grasps the handle on the rocker 6 with his hand, when the user's foot on one side moves forward, the hand on this side moves backward, and the foot on the other side moves backward, and the hand on the other side moves forward, so that the user's body posture is more coordinated and comfortable when exercising, and the weight plate 2 rotates clockwise on the base 1.

[0025] The central axis of the connecting rod assembly rotatably connected with the connecting plate 9 is parallel to the rotating shaft, and the two rotating shafts are arranged at an angle of 180° with the central axis of the weight plate 2 as the center, so that the movement directions of the two groups of rocker pedal assemblies are opposite, for example, when the user's foot on one side moves downward and forward on one group of pedal assemblies, the user's foot on the other side moves upward and backward on the other group of pedal assemblies. The weight plate 2, the mounting sleeve 3, the swing arm 4, the connecting frame 5, the rocker 6 and the mounting rod 7 form a crank rocker mechanism. The rotating shaft, the connecting plate 9, the connecting rod assembly, the pedal assembly and the swing arm 4 form a crank slider mechanism. The connecting plate 9 has both revolution around the weight plate 2 and rotation around the rotating shaft.

[0026] As Figure 3As shown, the connecting rod assembly comprises a connecting rod 10 and a first connecting head 11 and a second connecting head 12 connected to the two ends of the connecting rod 10 respectively. The first connecting head 11 is rotationally connected with the connecting plate 9. The pedal assembly comprises a moving frame 14, a connecting rod 13 arranged on the side of the moving frame 14 and rotationally connected with the second connecting head 12, a pedal 16 arranged on the top of the moving frame 14, and a roller assembly rotationally arranged on the moving frame 14. When the user exercises, the mounting sleeve 3 and the rotating shaft move clockwise relative to the weight disc 2, at the same time, the connecting plate 9 moves clockwise relative to the mounting sleeve 3 and the rotating shaft, and the distance of the user's foot moving along with the reciprocating movement of the pedal 16 increases. The principle is as follows: when the user steps on the pedal 16 and the mounting sleeve 3 moves forward and downward, the connecting plate 9 drives the rotating shaft to rotate forward, the connecting plate 9 is pulled forward along the clockwise direction by the connecting rod assembly, the connecting rod assembly drives the pedal assembly to move forward, the roller assembly rolls forward on the moving frame 14, and the distance of the user's foot moving forward is increased; when the mounting sleeve 3 moves backward and downward, the moment of inertia of the connecting plate 9 and the rotating shaft respectively promotes them to continue to rotate clockwise, and the phenomenon of being stuck does not occur; when the mounting sleeve 3 moves backward and upward, the connecting plate 9 is pushed backward along the clockwise direction by the connecting rod assembly, the pedal 16 will be moved to the limit position of moving backward through the roller assembly, and the distance of the user's foot moving backward is increased; when the mounting sleeve 3 moves forward and upward, the moment of inertia of the connecting plate 9 and the rotating shaft respectively promotes them to continue to rotate clockwise, and the phenomenon of being stuck does not occur.

[0027] When the user's foot steps on the pedal 16 to exercise, the pedal 16 realizes forward and backward sliding through the roller assembly, provides buffer for leg movement, and improves comfort.

[0028] In order to enhance the firmness between the pedal 16 and the moving frame 14, the pedal 16 and the moving frame 14 are connected with a reinforcing plate 17. At the same time, the pedal 16 has a tread groove distributed upward, which is convenient for the user to put his foot in, and the condition that the foot slips off the pedal 16 does not occur during movement, and the bottom of the tread groove has anti-skid lines to increase the friction with the user's shoes.

[0029] As shown in Figure 3 The roller assembly comprises three rollers 15 distributed in an inverted triangle. As shown in Figure 2 The two upper rollers 15 are arranged above the swing arm 4, and the lower roller 15 is arranged below the swing arm 4, and the three rollers 15 can effectively limit the movement range and will not fall off. The swing arm 4 is provided with a guide plate 18 on both sides, the guide plate 18 comprises a straight plate part and two bent plate parts connected to the two ends of the straight plate part respectively, and the roller 15 has a rolling groove matched with the guide plate 18. The roller 15 can smoothly roll on the guide plate 18.

[0030] The connecting plate 9 has a plurality of rotating connecting holes which are arranged in sequence along the direction away from the connecting position of the connecting plate 9 and the rotating shaft. The distance of the reciprocating movement of the pedal 16 is realized by adjusting the position of the first connecting head 11 in the rotating connecting holes. When the first connecting head 11 is connected to the rotating connecting hole at the outer side, the distance of the reciprocating movement of the pedal 16 is larger, and the user's step distance is larger when the user exercises by stepping on the pedal 16. In the embodiment, the connecting plate 9 with two rotating connecting holes is exemplarily shown, and according to the actual needs, the number of the rotating connecting holes can be designed as 3, 4 or other numbers.

[0031] The embodiment can adjust the corresponding step distance according to the height of the user to realize comfortable exercise. When adjusting the step distance, only the rotating connecting hole at which the first connecting head 11 is connected to the connecting plate 9 needs to be adjusted. The connecting plate 9 has both revolution and rotation movements, and can promote the pedal 16 to realize sliding through the roller assembly when rotating, thereby improving the step distance and the comfort during movement.

[0032] The embodiment of the utility model is described in detail above in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A stride-adjustable elliptical machine, characterized by, The utility model relates to a rocking arm pedal assembly, which comprises a base, a counterweight disc (2) rotatably arranged at the rear of the base, a mounting rod (7) arranged at the front of the base, the mounting rod (7) being higher than the counterweight disc (2), a swing arm (4), a connecting frame (5) connected to the front end of the swing arm (4), a mounting sleeve (3) arranged eccentrically with the counterweight disc (2) and connected to the rear end of the swing arm (4), a rotating shaft penetrating through the mounting sleeve (3) and rotatably connected with the counterweight disc (2) and the mounting sleeve (3), a connecting plate (9) connected to the outer end of the rotating shaft, a pedal assembly rotatably arranged on the swing arm (4), a connecting rod assembly rotatably connected with the connecting plate (9) and the pedal assembly at two ends, and a rocker (6) rotatably connected with the connecting frame (5) and the mounting rod (7), the connecting rod assembly is rotatably connected with the connecting plate (9) at the center axis, the two rotating shafts are arranged at an angle of 180 degrees with the center axis of the counterweight disc (2) as the center, the connecting plate (9) has a plurality of rotating connection holes, and the rotating connection holes are arranged in sequence away from the connecting position of the connecting plate (9) and the rotating shaft. The connecting rod assembly comprises a connecting rod (10) and a first connecting head (11) and a second connecting head (12) connected to two ends of the connecting rod (10) respectively, and the first connecting head (11) is rotatably connected with the connecting plate (9). The pedal assembly comprises a moving frame (14), a connecting rod (13) arranged on the side of the moving frame (14) and rotatably connected with the second connecting head (12), a pedal (16) arranged on the top of the moving frame (14), and a roller assembly rotatably arranged on the moving frame (14).

2. The stride adjustable elliptical machine of claim 1, wherein, The pedal (16) and the moving frame (14) are connected with a reinforcing plate (17), the pedal (16) has a pedal groove arranged upwards, and the bottom of the pedal groove has anti-skid lines.

3. The stride adjustable elliptical machine of claim 2, wherein, The roller assembly comprises three rollers (15) arranged in an inverted triangular shape, two upper rollers (15) are rotatably arranged above the swing arm (4), and one lower roller (15) is rotatably arranged below the swing arm (4).

4. The stride adjustable elliptical machine of claim 3, wherein, The swing arm (4) is provided with guide plates (18) on the upper and lower sides, the guide plates (18) comprise a straight plate part and two bent plate parts connected to two ends of the straight plate part respectively, and the rollers (15) have rolling grooves matched with the guide plates (18).

5. The stride adjustable elliptical machine of claim 3, wherein, The base comprises a base (1) and a support frame (19) arranged obliquely on the base (1), the counterweight disc (2) is rotatably arranged on the base (1), and the mounting rod (7) is arranged on the support frame (19).

6. The stride adjustable elliptical machine of claim 5, wherein, The support frame (19) is provided with two fixed rods (8) symmetrically arranged on the upper part, the fixed rods (8) and the top ends of the rockers (6) are provided with handles.

7. The stride adjustable elliptical machine of claim 1, wherein, ​ 8. The stride adjustable elliptical machine of claim 7, wherein, ​

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