Novel elliptical machine transmission mechanism

Abstract

The utility model relates to a novel elliptical machine transmission mechanism which comprises a base, two stand columns, two operation contact swing arms and a transmission assembly, the stand columns are installed on the upper surface of the base at intervals, the operation contact swing arms are installed on the side faces of the stand columns, each operation contact swing arm comprises a first vertical pipe and a first straight pipe, and a pedal is formed on the upper surface of the end of each first straight pipe. The transmission assembly comprises two first wheel bodies, two second wheel bodies, two third wheel bodies, two fourth wheel bodies, a rotating disc, two first connecting rods, a first belt and a second connecting rod, and the two first wheel bodies, the two second wheel bodies, the two third wheel bodies, the two fourth wheel bodies, the rotating disc, the two first connecting rods and the second connecting rods are installed on the stand column and the operation contact swing arm correspondingly; one end of a first belt is fixedly connected with a pedal plate and sequentially bypasses the first wheel body, the second wheel body, the third wheel body and the fourth wheel body to be fixedly connected with a second connecting rod, and compared with an existing elliptical machine, the number of connecting rods is greatly reduced, and the requirements for connecting rod connection and key position accuracy are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and specifically relates to a novel elliptical machine transmission mechanism. Background Art

[0002] The elliptical machine is also called the space walker. As a machine with good cardiopulmonary training effect, the biggest feature of the elliptical machine is that there is no point of force on the knee joint when the human body uses it for exercise. Using the elliptical machine for exercise can not only prevent, reduce and relieve cervical spondylosis, periarthritis of the shoulder and upper back pain, but also avoid the impact force generated by running, better protect the joints, and thus have a better safety factor.

[0003] Most of the existing elliptical machines use multi-link transmission. If connecting rods are used, very high precision requirements are placed on the connecting rods during the production process. If the precision is not met, safety accidents may occur. In view of this, this plan decides to design an elliptical machine that mainly uses belts for transmission. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a new type of elliptical machine transmission mechanism, which is mainly driven by a belt.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a new elliptical machine transmission mechanism, including a base, two columns, two operating contact swing arms and a transmission assembly, the columns are installed on the upper surface of the base and are arranged at intervals, and an extension frame is formed on the inner side of the columns;

[0006] The two operating contact swing arms are respectively connected to the two sides of the inner column, and the operating contact swing arms include a first vertical tube and a first straight tube, the upper end of the first vertical tube is rotatably connected to the side wall of the inner column, the first straight tube is connected to the bottom end of the first vertical tube, a foot pedal is formed on the upper surface of the end of the first straight tube, the upper end of the first vertical tube is connected to a rotating cylinder, the circumference of the rotating cylinder is formed with a first extension plate inclined upward, and the circumference of the rotating cylinder is formed with a second extension plate arranged downward;

[0007] The transmission assembly includes two first wheel bodies, two second wheel bodies, two third wheel bodies, two fourth wheel bodies, a rotating disk, two first connecting rods, two first belts and two second connecting rods. The upper end of the outer column is provided with a rotating hole, and the end surface of the rotating disk is provided with a first rotating shaft. The first rotating shaft passes through the rotating hole and is rotatably connected. One of the first connecting rods is fixedly connected to the rotating disk, and the other first connecting rod is fixedly connected to the end surface of the rotating shaft. The two first connecting rods are respectively hinged to the ends of the two second connecting rods, and the other ends of the two second connecting rods are hinged to the ends of the two first extension plates.

[0008] The two first wheel bodies are rotatably connected to both sides of the extension frame, the two second wheel bodies are rotatably connected to the second extension plate, the height of the second wheel body is lower than the first wheel body, the two third wheel bodies are rotatably connected to the hinge of the first extension plate and the second connecting rod, the third wheel body is rotatably connected between the first extension plate and the second connecting rod, the third wheel body is higher than the second wheel body, and the two fourth wheel bodies are respectively connected to the bottom of the outer column; one end of the first belt is fixedly connected to the foot pedal, and it passes through the first wheel body, the second wheel body, the third wheel body and the fourth wheel body in turn, and is fixedly connected to one end of the second connecting rod close to the first connecting rod.

[0009] Furthermore, the first connecting rod and the second connecting rod are hinged by a second rotating shaft, and the second rotating shaft extends out of the side of the second connecting rod. A fixing sleeve is sleeved on the second rotating shaft extending out of the second connecting rod, and a belt mounting plate arranged downward is formed on the circumference of the fixing sleeve, and the first belt is fixedly connected to the belt mounting plate.

[0010] Furthermore, the number of the first extension plates is two and they are arranged at intervals, and the second connecting rod is located between the two first extension plates.

[0011] Furthermore, the transmission mechanism also includes a resistance assembly, which includes a resistance disk and a resistance member, and the resistance member is used to limit the rotation speed of the resistance disk. A first mounting hole is formed in the middle section of the outer column, and a third rotating shaft is arranged at the first mounting hole. Both sides of the third rotating shaft extend out of both sides of the first mounting hole respectively, and both sides of the third rotating shaft are respectively connected to a fifth wheel body and a sixth wheel body, a first mounting plate is provided at the lower section of the two columns, a resistance disk is installed on the side of the first mounting plate, and a seventh wheel body is provided on the outward side of the resistance disk, the fifth wheel body and the rotating disk are driven by a belt, and the sixth wheel body and the seventh wheel body are driven by a belt.

[0012] Furthermore, a handle is formed on the outer side of the circumference of the rotating cylinder.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] When the user steps on the foot pedal to move up and down, the rotating cylinder rotates back and forth, the first connecting rod and the second connecting rod rotate, the first connecting rod rotates around the rotating disk, and the connection position of the first connecting rod and the second connecting rod rotates around the rotating disk, having a distal end and a proximal end, so that the foot pedal can move up and down, and one end of the first belt is fixedly connected to the foot pedal and sequentially bypasses the first wheel body, the second wheel body, the third wheel body and the fourth wheel body and is fixedly connected to the end of the second connecting rod close to the first connecting rod to realize transmission. Compared with the existing elliptical machines, the setting of the connecting rod is greatly reduced, the requirements for the accuracy of the connecting rod connection and key positions are reduced, and the potential safety hazards are reduced, the accuracy requirements for key connections are reduced, and the processes in production are reduced, thereby reducing the possibility of abnormal noise during exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a new type of elliptical machine transmission mechanism of the utility model;

[0016] Figure 2 This is a front view structural diagram of a new type of elliptical machine transmission mechanism of the utility model;

[0017] Figure 3 It is a schematic diagram of the principle structure of the first belt winding of the utility model.

[0018] Markings in the figure: 1. base; 2. column; 21. extension frame; 22. first mounting plate; 3. operating contact swing arm; 31. first vertical pipe; 32. first straight pipe; 321. foot pedal; 33. rotating cylinder; 331. first extension plate; 332. second extension plate; 333. handle; 4. transmission assembly; 41. first wheel body; 42. second wheel body; 43. third wheel body; 44. fourth wheel body; 45. rotating disk; 46. first connecting rod; 47. second connecting rod; 48. first belt; 5. resistance assembly; 51. fifth wheel body; 52. sixth wheel body; 53. resistance disk; 54. resistance member. DETAILED DESCRIPTION

[0019] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0020] like Figure 1-3 As shown, this embodiment provides a novel elliptical machine transmission mechanism, including a base 1, two columns 2, two operating contact swing arms 3, a transmission assembly 4 and a resistance assembly 5.

[0021] Two spaced-apart side tubes are formed on both sides of the base 1, the columns 2 are installed on the upper surface of the base 1 and are spaced-apart, an extension frame 21 is formed on the side of the inner column 2, a first mounting plate 22 is provided at the lower section of the two columns 2, a first mounting hole is formed at the middle section of the outer column 2, a third rotating shaft is provided at the first mounting hole, both sides of the third rotating shaft extend out of both sides of the first mounting hole, and the fifth wheel body 51 and the sixth wheel body 52 are connected to both sides of the third rotating shaft.

[0022] The two operating contact swing arms 3 are respectively connected to the two sides of the inner column 2, and the operating contact swing arms 3 include a first vertical tube 31 and a first straight tube 32. The upper end of the first vertical tube 31 is rotatably connected to the side wall of the inner column 2, and the first straight tube 32 is connected to the bottom end of the first vertical tube 31. A foot pedal 321 is formed on the upper surface of the end of the first straight tube 32. The upper end of the first vertical tube 31 is connected to a rotating cylinder 33. A first extension plate 331 inclined upward is formed on the circumference of the rotating cylinder 33, and a second extension plate 332 set downward is formed on the circumference of the rotating cylinder 33. Specifically, there are two first extension plates 331 and they are arranged at intervals. The second connecting rod 47 is located between the two first extension plates 331, and a handle 333 is formed on the outer side of the circumference of the rotating cylinder 33.

[0023] The transmission assembly 4 includes two first wheel bodies 41, two second wheel bodies 42, two third wheel bodies 43, two fourth wheel bodies 44, a rotating disk 45, two first connecting rods 46, two first belts 48 and two second connecting rods 47. A rotating hole is provided at the upper end of the outer column 2. The end surface of the rotating disk 45 has a first rotating shaft, which passes through the rotating hole and is rotatably connected. One of the first connecting rods 46 is fixedly connected to the rotating disk 45, and the other first connecting rod 46 is fixedly connected to the end surface of the rotating shaft. The two first connecting rods 46 are respectively hinged to the ends of the two second connecting rods 47, and the other ends of the two second connecting rods 47 are connected to the two The end of the first extension plate 331 is hinged. Specifically, the first connecting rod 46 and the second connecting rod 47 are hinged by a second rotating shaft. The second rotating shaft extends out of the side of the second connecting rod 47. A fixing sleeve is sleeved on the second rotating shaft extending out of the second connecting rod 47. A belt mounting plate arranged downward is formed on the circumferential surface of the fixing sleeve. The first belt 48 is fixedly connected to the belt mounting plate. A mounting opening is provided in the middle of the belt mounting plate. The first belt 48 extends into the mounting opening and is locked by bolts passing through the belt mounting plate and the first belt 48. The bolts will make the belt mounting plates on both sides of the mounting opening close to each other to clamp the first belt 48.

[0024] The two first wheel bodies 41 are rotatably connected to the two sides of the extension frame 21, the two second wheel bodies 42 are rotatably connected to the two second extension plates 332 respectively, the second wheel body 42 is lower than the first wheel body 41, the two third wheel bodies 43 are rotatably connected to the hinge between the first extension plate 331 and the second connecting rod 47, the third wheel body 43 is rotatably connected between the first extension plate 331 and the second connecting rod 47, the third wheel body 43 is higher than the second wheel body 42, and the two fourth wheel bodies 44 are respectively connected to the lower part of the outer column 2; one end of the first belt 48 is fixedly connected to the foot pedal 321, and passes through the first wheel body 41, the second wheel body 42, the third wheel body 43 and the fourth wheel body 44 in turn, and is fixedly connected to one end of the second connecting rod 47 close to the first connecting rod 46.

[0025] The resistance assembly 5 includes a resistance disk 53 and a resistance member 54. The resistance member 54 is used to limit the rotation speed of the resistance disk 53. Specifically, the resistance member 54 adopts a mounting shell provided on the resistance disk 53. A part of the circumference of the resistance disk 53 extends into the mounting shell. A magnetic resistance sheet is provided in the mounting shell. There are two magnetic resistance sheets and they are located on both sides of the resistance disk 53. The rotation speed of the resistance disk 53 is controlled by the magnetic resistance sheets. The lower section of the two columns 2 is provided with a first mounting plate 22. The resistance disk 53 is mounted on the side of the first mounting plate 22. The resistance disk 53 is provided with a seventh wheel body on the outer side. The fifth wheel body 51 and the rotating disk 45 are driven by a belt, and the sixth wheel body 52 and the seventh wheel body are driven by a belt.

[0026] Working principle: when the user steps on the foot pedal 321 to move up and down, the rotating cylinder 33 will rotate back and forth, the first connecting rod 46 and the second connecting rod 47 will rotate, the first connecting rod 46 rotates around the rotating disk 45, and the connection position of the first connecting rod 46 and the second connecting rod 47 rotates around the rotating disk 45, with a distal end and a proximal end, so that the foot pedal 321 can move up and down, and one end of the first belt 48 is fixedly connected to the foot pedal 321, and passes through the first wheel body 41, the second wheel body 42, the third wheel body 43 and the fourth wheel body 44 in turn and is fixedly connected to the end of the second connecting rod 47 close to the first connecting rod 46 to realize transmission. Compared with the existing elliptical machine, the setting of the connecting rod is greatly reduced, the requirements for the accuracy of the connecting rod connection and the key position are reduced, and the potential safety hazards are reduced, the accuracy requirements for the key connections are reduced, and the processes in production are reduced, thereby reducing the possibility of abnormal noise during exercise.

[0027] The above shows and describes the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A new type of elliptical machine transmission mechanism, characterized in that: It includes a base, two columns, two operating contact swing arms and a transmission assembly, wherein the columns are mounted on the upper surface of the base and are arranged at intervals, and an extension frame is formed on the inner side of the columns; The two operating contact swing arms are respectively connected to the two sides of the inner column, and the operating contact swing arms include a first vertical tube and a first straight tube, the upper end of the first vertical tube is rotatably connected to the side wall of the inner column, the first straight tube is connected to the bottom end of the first vertical tube, a foot pedal is formed on the upper surface of the end of the first straight tube, the upper end of the first vertical tube is connected to a rotating cylinder, the circumference of the rotating cylinder is formed with a first extension plate inclined upward, and the circumference of the rotating cylinder is formed with a second extension plate arranged downward; The transmission assembly includes two first wheel bodies, two second wheel bodies, two third wheel bodies, two fourth wheel bodies, a rotating disk, two first connecting rods, two first belts and two second connecting rods. The upper end of the outer column is provided with a rotating hole, and the end surface of the rotating disk is provided with a first rotating shaft. The first rotating shaft passes through the rotating hole and is rotatably connected. One of the first connecting rods is fixedly connected to the rotating disk, and the other first connecting rod is fixedly connected to the end surface of the rotating shaft. The two first connecting rods are respectively hinged to the ends of the two second connecting rods, and the other ends of the two second connecting rods are hinged to the ends of the two first extension plates. The two first wheel bodies are rotatably connected to both sides of the extension frame body, the two second wheel bodies are rotatably connected to the two second extension plates respectively, the height of the second wheel body is lower than the first wheel body, the two third wheel bodies are rotatably connected to the hinge of the first extension plate and the second connecting rod, the third wheel body is rotatably connected between the first extension plate and the second connecting rod, the third wheel body is higher than the second wheel body, and the two fourth wheel bodies are respectively connected to the bottom of the outer column; one end of the first belt is fixedly connected to the foot pedal, and it passes through the first wheel body, the second wheel body, the third wheel body and the fourth wheel body in turn, and is fixedly connected to one end of the second connecting rod close to the first connecting rod.

2. A novel elliptical machine transmission mechanism according to claim 1, characterized in that: The first connecting rod and the second connecting rod are hinged by a second rotating shaft, and the second rotating shaft extends out of the side of the second connecting rod. A fixing sleeve is sleeved on the second rotating shaft extending out of the second connecting rod, and a belt mounting plate arranged downward is formed on the circumference of the fixing sleeve. The first belt is fixedly connected to the belt mounting plate.

3. The novel elliptical machine transmission mechanism according to claim 1 is characterized in that: There are two first extension plates which are arranged at intervals, and the second connecting rod is located between the two first extension plates.

4. The novel elliptical machine transmission mechanism according to claim 1 is characterized in that: The transmission mechanism also includes a resistance assembly, which includes a resistance disk and a resistance member, and the resistance member is used to limit the rotation speed of the resistance disk. A first mounting hole is formed in the middle section of the outer column, and a third rotating shaft is arranged at the first mounting hole. Both sides of the third rotating shaft extend out from both sides of the first mounting hole respectively, and both sides of the third rotating shaft are respectively connected to a fifth wheel body and a sixth wheel body, a first mounting plate is arranged at the lower section of the two columns, a resistance disk is installed on the side of the first mounting plate, and a seventh wheel body is arranged on the outward side of the resistance disk, the fifth wheel body and the rotating disk are driven by a belt, and the sixth wheel body and the seventh wheel body are driven by a belt.

5. The novel elliptical machine transmission mechanism according to claim 1 is characterized in that: A handle is formed on the outer side of the circumference of the rotating cylinder.

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