Fitness equipment for twisting waist and stepping

Abstract

The utility model provides a body-building device for twisting the waist and stepping. The body-building device comprises a base, an upper swing arm, a lower swing arm and a pedal assembly. Wherein a rotatable rotating shaft pipe is connected to the base, the upper swing arm and the lower swing arm are connected with the rotating shaft pipe through a first rotating shaft and a second rotating shaft in a penetrating mode so as to limit the upper swing arm and the lower swing arm to only swing relative to the rotating shaft pipe, and the same ends of the upper swing arm and the lower swing arm are connected with a connecting sleeve of the pedal assembly. A pedal of the pedal assembly is arranged on the connecting sleeve to rotate. Meanwhile, the rotating shaft pipe is limited to rotate relative to the base through connection of the positioning shaft, so that the upper swing arm and the lower swing arm are limited to only have two rotating axes, various movement actions such as waist twisting, stepping or simultaneous waist twisting and stepping can be formed, and a sporter can make choices according to requirements. In addition, the upper swing arm and the lower swing arm are connected to a limiting structure of the rotating shaft pipe through the first rotating shaft and the second rotating shaft respectively, so that the swing mechanism can swing stably, and accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the field of stepping fitness equipment, in particular to a waist-twisting stepping fitness equipment. Background Art

[0002] A stepper is a common indoor fitness equipment. Existing steppers generally include two pedals, allowing users to achieve stepping exercise by repeatedly stepping on the pedals. For example, the stepper disclosed in patent application number 201520952950.4. However, this type of stepper only provides stepping exercise and is unable to meet other exercise needs. Utility Model Content

[0003] In view of the deficiencies in the above background technology, the present invention provides a waist-twisting and stepping fitness equipment.

[0004] The utility model adopts the following technical solutions:

[0005] A waist-twisting and stepping fitness equipment, comprising:

[0006] A base, to which a rotatable shaft tube is connected;

[0007] An upper swing arm, wherein a first rotating shaft is installed in the middle of the upper swing arm, and the first rotating shaft is connected to the upper end of the rotating shaft tube and rotates to make the two ends of the upper swing arm swing up and down relative to the two sides of the base;

[0008] A lower swing arm, wherein a second rotating shaft is connected between the middle of the lower swing arm and the rotating shaft tube, so that the lower swing arm rotates relative to the rotating shaft tube about the second rotating shaft, and the two ends of the lower swing arm swing up and down relative to the two sides of the base;

[0009] A foot pedal assembly, wherein the same end of the upper swing arm and the lower swing arm are connected to the foot pedal assembly, and the foot pedal assembly includes a pedal and a connecting sleeve, wherein the pedal is connected to the connecting sleeve for rotation, and the side of the connecting sleeve is pivotally connected to the end of the upper swing arm and the end of the lower swing arm in sequence from top to bottom.

[0010] In one possible implementation, a positioning shaft is fixed in the middle of the base, the rotating shaft tube is located outside the positioning shaft and rotates, a first threaded hole is set on the side of the positioning shaft, and the first threaded hole is adapted to be spirally connected to a positioning screw, and a strip-shaped limiting hole is set on one side of the rotating shaft tube, and the limiting hole is set horizontally, and the positioning screw passes through the limiting hole and is spirally connected to the first threaded hole.

[0011] In one possible implementation, the lower swing arm has fixed stop pins under both sides of the second rotating shaft. When the rotating shaft tube rotates until the lower swing arm is parallel to the base, the two stop pins correspond to both sides of the first threaded hole, so that the positioning screw and the first threaded hole are spirally connected and are located between the two stop pins.

[0012] In one possible implementation, a positioning sleeve is fixed on one side in the middle of the base, and a second threaded hole is provided on the end face of the upper end of the positioning sleeve. The second threaded hole is adapted to be spirally connected to a positioning screw. A first positioning plate is fixed on one side of the rotating shaft tube, and the first positioning plate is provided with a first positioning hole. When the rotating shaft tube is rotated until the lower arm is parallel to the base, the first positioning hole corresponds to above the second threaded hole, and the positioning screw passes through the first positioning hole and is spirally connected to the second threaded hole.

[0013] In one possible implementation, a lower sleeve is fixed in the middle of the base, a positioning shaft is fixed in the middle of the lower sleeve, an upper sleeve is connected to the positioning shaft, the annular surface at the upper end of the upper sleeve and the annular surface at the lower end of the lower sleeve both protrude to form a shoulder, and the rotating shaft tube is confined between the shoulder of the lower sleeve and the shoulder of the upper sleeve.

[0014] In one possible implementation, a countersunk hole is provided in the center of the upper sleeve, the positioning shaft is inserted into the small hole at the lower end of the countersunk hole, a gasket is placed in the large hole at the upper end of the countersunk hole, and a screw is inserted downward until the screw and the positioning shaft are spirally connected and fastened, so that the gasket is located on the bottom surface of the large hole in the countersunk hole.

[0015] In one possible implementation, a positioning sleeve is fixed on one side in the middle of the base, a second threaded hole is provided on the end face of the upper end of the positioning sleeve, the second threaded hole is adapted to be spirally connected to a positioning screw, a first positioning plate is fixed on one side of the rotating shaft tube, the first positioning plate is provided with a first positioning hole, when the rotating shaft tube is rotated until the lower arm is parallel to the base, the first positioning hole corresponds to above the second threaded hole, and the positioning screw passes through the first positioning hole and is spirally connected to the second threaded hole.

[0016] In one possible implementation, a nut is fixed on one side of the rotating shaft tube, and the nut is adapted to be spirally connected to a positioning screw; the lower swing arm is fixed with a second positioning plate, the lower end of the second positioning plate extends below the lower swing arm, and the part of the second positioning plate extending below the lower swing arm is provided with a second positioning hole passing through it. When the rotating shaft tube is rotated until the lower swing arm is parallel to the base, the second positioning hole corresponds to the nut, and the positioning screw is adapted to pass through the second positioning hole and then be spirally connected to the nut, so that the positioning screw is stuck in the second positioning hole.

[0017] In a possible implementation, the fitness equipment further includes a damper, the tail end of the damper is pivotally connected to the side below the rotating shaft tube, and the damper has a piston rod, the end of the piston rod is pivotally connected to the connecting sleeve.

[0018] From the above description of the structure of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages: In the structure of the present invention, the upper swing arm and the lower swing arm are connected to the rotating shaft tube by respectively passing through the first rotating shaft and the second rotating shaft to limit the upper swing arm and the lower swing arm to swing only relative to the rotating shaft tube. At the same time, by limiting the rotating shaft tube to rotate relative to the base, the upper swing arm and the lower swing arm are limited to having only two rotation axes, so that the present invention can form a variety of sports movements such as twisting the waist, stepping, or twisting the waist and stepping at the same time, so that the exerciser can make a choice according to needs, which is more practical. In addition, this limiting structure of connecting the upper swing arm and the lower swing arm to the rotating shaft tube respectively by the first rotating shaft and the second rotating shaft can make the present invention swing more stably, avoiding accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model after the positioning screw passes through the limiting hole to the first threaded hole.

[0020] Figure 2 for Figure 1 Schematic diagram of the enlarged view at point A.

[0021] Figure 3 Schematic diagram of the shaft tube connected to the base.

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model after the positioning screw passes through the second positioning hole to the first threaded hole.

[0023] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure in the AA direction.

[0024] Figure 6 for Figure 5 Schematic diagram of the enlarged point D in the middle.

[0025] Figure 7 for Figure 5 Enlarged schematic diagram at E in the middle.

[0026] Figure 8 for Figure 4 Schematic diagram of the cross-sectional structure in the CC direction.

[0027] Figure 9 for Figure 8 Enlarged schematic diagram at F in the middle.

[0028] Figure 10This is a schematic diagram of the three-dimensional structure of the upper swing arm from an upward perspective.

[0029] Figure 11 Schematic diagram of the three-dimensional structure of the lower arm.

[0030] Figure 12 This is a schematic diagram of the three-dimensional structure of the pedal assembly from an upward perspective.

[0031] Figure 13 The utility model is a cross-sectional structural diagram of the utility model after an athlete stands on two pedal assemblies and presses down one pedal.

[0032] Figure 14 The utility model is a cross-sectional structural diagram of the utility model after an athlete stands on two pedal assemblies and presses down one pedal to simultaneously drive the rotating shaft tube to rotate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0034] In the following, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0035] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0036] The utility model provides a waist-twisting and stepping fitness equipment, as shown in the attached Figure 1 and 2 As shown, the fitness equipment includes a base 1, an upper swing arm 2, a lower swing arm 3, and a pedal assembly 4. A rotatable pivot tube 11 is connected to the base 1. A first pivot 21 is mounted in the middle of the upper swing arm 2. The first pivot 21 is connected to the upper end of the pivot tube 11 and rotates, causing the ends of the upper swing arm 2 to swing up and down relative to the sides of the base 1. A second pivot 12 is fixed to the side of the pivot tube 11. The middle of the lower swing arm 3 is positioned outside the second pivot 12, allowing the ends of the lower swing arm 3 to swing up and down relative to the sides of the base 1. The same end of each of the upper and lower swing arms 2 and 3 is connected to the pedal assembly 4.

[0037] The structure of the rotating shaft tube 11 rotating relative to the base 1 can be as shown in the following Figure 5 and 6As shown, a lower sleeve 132 is fixed in the middle of the base 1, and the rotating shaft tube 11 is fitted around the outer surface of the lower sleeve 132, thereby enabling the rotating shaft tube 11 to rotate relative to the base 1. Furthermore, a positioning shaft 14 can be fixed in the middle of the lower sleeve 132, and the upper sleeve 131 is connected to the positioning shaft 14. The annular surface at the upper end of the upper sleeve 131 and the annular surface at the lower end of the lower sleeve 132 both protrude to form a shoulder, and the rotating shaft tube 11 is constrained between the shoulder of the lower sleeve 132 and the shoulder of the upper sleeve 131. A countersunk hole is set in the center of the upper sleeve 131, and the positioning shaft 14 is inserted into the small hole at the lower end of the countersunk hole. A gasket is placed in the large hole at the upper end of the countersunk hole, and a screw is inserted downward until the screw and the positioning shaft 14 are spirally connected and fastened, so that the gasket is located on the bottom surface of the large hole in the countersunk hole, thereby limiting the upper sleeve 131 from being pulled out upward, thereby limiting the rotation of the shaft tube 11 between the upper sleeve 131 and the lower sleeve 132 and preventing it from being pulled upward along its axial direction, ensuring that the shaft tube 11 can rotate stably in the middle of the base 1.

[0038] Please refer to the attached Figure 3 and 8 As shown, a positioning sleeve 17 is fixed to one side in the middle of the base 1, and a second threaded hole 106 is provided on the end surface of the upper end of the positioning sleeve 17. The second threaded hole 106 is adapted to be screwedly connected to the positioning screw 15. A first positioning plate 18 is fixed to one side of the rotating shaft tube 11, and the first positioning plate 18 is provided with a first positioning hole 105. When the rotating shaft tube 11 rotates until the lower swing arm 3 is parallel to the base 1, the first positioning hole 105 corresponds to the upper part of the second threaded hole 106. The positioning screw 15 is passed through the first positioning hole 105 and screwed to the second threaded hole 106, thereby preventing the rotating shaft tube 11 from rotating, thereby preventing the upper swing arm 2, the lower swing arm 3 and the footrest assembly 4 from rotating relative to the base 1.

[0039] In addition, a first threaded hole 102 is provided on the side of the positioning shaft 14, which is also adapted to be screwed onto the positioning screw 15. A strip-shaped limiting hole 101 is provided on one side of the rotating shaft tube 11. The limiting hole 101 is arranged horizontally. The positioning screw 15 passes through the limiting hole 101 and is screwed onto the first threaded hole 102, thereby securing the positioning screw 15 to the positioning shaft 14. When the rotating shaft tube 11 rotates, when both ends of the limiting hole 101 are blocked by the positioning screw 15, it cannot rotate further. This structure, in which the positioning screw 15 passes through the limiting hole 101 and is connected to the positioning shaft 14, limits the rotation angle of the rotating shaft tube 11.

[0040] Continue to refer to the attached Figure 3 The upper end of the upper sleeve 131 on the shaft tube 11 can be provided with a first connecting hole 103 that passes through both sides. Figure 12A protective cover 22 is provided in the middle of the upper swing arm 2, and the protective cover 22 is sleeved on the upper end of the upper shaft sleeve 131. The first rotating shaft 21 passes through the protective cover 22 and through the first connecting hole 103, thereby forming a structure in which the first rotating shaft 21 is connected to the upper end of the rotating shaft tube 11 for rotation, and the two ends of the upper swing arm 2 swing relative to the upper ends of both sides of the base 1 with the first rotating shaft 21 as the rotation axis.

[0041] As attached Figure 13 As shown, the lower swing arm 3 can be formed by connecting two dovetail-shaped plates 31. The two dovetail-shaped plates 31 are connected by fixing pins 34 at both ends to form a fixed whole. The two dovetail-shaped plates 31 are each provided with a second connecting hole 301 at the center. The second rotating shaft 12 is fixed on both sides of the rotating shaft tube 11. The two dovetail-shaped plates 31 are provided on both sides of the rotating shaft tube 11, and the two second rotating shafts 12 are respectively inserted into the two second connecting holes 301. This forms a structure in which the second rotating shaft 12 is connected to the rotating shaft tube 11 near the center for rotation, and the two ends of the lower swing arm 3 swing relative to the upper ends of the base 1 with the second rotating shaft 12 as the rotation axis.

[0042] As attached Figure 14 As shown, the footrest assembly 4 includes a pedal 41 and a connecting sleeve 43. The pedal 41 is arranged on the connecting sleeve 43. The side of the connecting sleeve 43 is pivotally connected to the end of the upper swing arm 2 and the end of the lower swing arm 3 from top to bottom. The pivot structure in this embodiment can be formed by a structure with a fixing pin 34 installed, so that the two pivoted parts can rotate with each other. Furthermore, the side of the connecting sleeve 43 is fixed with a pivot member 44, and the cross-section of the pivot member 44 is C-shaped. The end of the upper swing arm 2 and the end of the lower swing arm 3 are both embedded in the pivot member 44, and the fixing pin 34 passes through both sides of the pivot member 44 and the end of the upper swing arm 2 or the end of the lower swing arm 3, and the fixing pin 34 can be fixed to the pivot member 44 by riveting, thereby forming a restriction on the end of the upper swing arm 2 and the end of the lower swing arm 3, so that the upper swing arm 2 and the lower swing arm 3 can only rotate relative to the connecting sleeve 43, and one end of the upper swing arm 2, one end of the lower swing arm 3, the connecting sleeve 43 and the rotating shaft tube 11 form a quadrilateral connecting rod structure, so that the upper swing arm 2 and the lower swing arm 3 can swing simultaneously more stably. When the positioning screw 15 is not inserted into the limiting hole 101 and is screwed to the first threaded hole 102, the athlete stands on the two pedals 41 with both feet. When the right foot steps down with force, the upper swing arm 2 and the lower swing arm 3 are moved downward to form an attachment. Figure 10 As shown, the upper swing arm 2 and the lower swing arm 3 are tilted upward at one end of the left foot to lift the left foot, and then the left foot steps down with force to make the upper swing arm 2 and the lower swing arm 3 at one end of the right foot move downward while the upper swing arm 2 and the lower swing arm 3 at the left foot move upward, and this reciprocating movement can form the movement of the pedal 41. Furthermore, during the downward stepping process, the foot can also apply force forward to drive the rotating shaft tube 11 to rotate, forming the following Figure 11As shown, the stepped pedal 41 is swung forward relative to the base 1, thereby forming a forward stepping motion.

[0043] Preferably, the present invention may also be configured with an armrest (not shown in the drawings), which includes a support rod connected to the base 1 and a handle fixed to the upper end of the support rod. Both hands can be held on the handle during exercise to help the body maintain balance.

[0044] In addition, as attached Figure 4 As shown, the fitness equipment of the utility model further includes a damper 5 having a piston rod 51. Preferably, the damper 5 can be a hydraulic damper 5 or a spring damper 5. The tail end of the damper 5 is pivotally connected to the side below the rotating shaft tube 11, and the end of the piston rod 51 of the damper 5 is pivotally connected to the connecting sleeve 43. In this structure, when the athlete presses down on the pedal 41, causing the lower swing arm 3 to swing, the damper 5 is driven to swing accordingly. When the lower swing arm 3 swings downward and presses the piston rod 51 of the damper 5 into the damper 5, the damper 5 can provide resistance to the downward swing of the lower swing arm 3, thereby providing resistance to the feet pressing down on the pedal 41 during exercise, thereby increasing the intensity of fitness training.

[0045] The pedal 41 is connected to the connecting sleeve 43 for rotation. The rotation structure can be as shown in the following figure. Figure 7 As shown, a rotating shaft 42 is fixed to the bottom center of the pedal 41. The rotating shaft 42 passes through a connecting sleeve 43, allowing the pedal 41 to rotate relative to the connecting sleeve 43. Furthermore, fixed to the upper and lower ends of the connecting sleeve 43 are stop sleeves 45, which are similar in structure to the upper sleeve 131 and the lower sleeve 132. The stop sleeves 45, like the upper sleeve 131 and the lower sleeve 132, can be nylon sleeves. The rotating shaft 42 passes through the two stop sleeves 45, thereby separating the rotating shaft 42 and the connecting sleeve 43, and preventing direct frictional contact between the metal rotating shaft 42 and the connecting sleeve 43.

[0046] Also refer to the attached Figure 3 , the lower swing arm 3 is fixed with stop pins 32 on both sides below the second connection hole 301. When the rotating shaft tube 11 rotates until the lower swing arm 3 is parallel to the base 1 and the lower swing arm 3 is horizontal relative to the base 1, the two stop pins 32 correspond to the two sides of the first threaded hole 102 of the positioning shaft 14, so that the positioning screw 15 and the first threaded hole 102 are screwed together and are located between the two stop pins 32, so that the positioning screw 15 blocks the two stop pins 32. At the same time, since the positioning screw 15 passes through the limiting hole 101 and the first threaded hole 102 and is screwed together, the rotation angle of the rotating shaft tube 11 can be limited. Therefore, when the athlete stands on the two pedals 41 and steps on one side of the pedal 41 on the base 1, the rotating shaft tube 11 can be driven to rotate to the limiting hole 101 on the other side of the base and one end is blocked by the positioning screw 15, and the lower swing arm 3 rotates to the stop pin 32 on the other side of the base 1 and presses on the positioning screw 15, so that the stop pin 32 limits the swing angle of the lower swing arm 3. For details, please refer to the attached Figure 11 Stepping on the right pedal 41 can drive the rotating shaft tube 11 to rotate until the left end of the limiting hole 101 is blocked by the positioning screw 15, so that the right pedal 41 swings downward and backward. Then, stepping on the left pedal 41 can drive the rotating shaft tube 11 to rotate until the right end of the limiting hole 101 is blocked by the positioning screw 15, so that the left pedal 41 rotates downward and backward. This reciprocating movement can form a waist-twisting stepping fitness movement.

[0047] As attached Figure 3 As shown, the side of the shaft tube 11 facing away from the limiting hole 101 is fixed with a nut 19, and the positioning screw 15 is adapted to be screwed into the nut 19. Figure 13 The lower arm 3 is fixed with a second positioning plate 33, the lower end of the second positioning plate 33 extends below the lower arm 3, and the portion of the second positioning plate 33 extending below the lower arm 3 is provided with a second positioning hole 302 through which the positioning screw 15 fits. Figure 4 、 8 As shown in Figure 9, when the pivot tube 11 rotates until the lower arm 3 is parallel to the base 1, the second positioning hole 302 corresponds to the first threaded hole 102. At this time, the positioning screw 15 is adapted to pass through the second positioning hole 302 and is screwed to the nut 19, so that the positioning screw 15 can be fixed in the second positioning hole 302, so that the lower arm 3 cannot swing, and the two pedals 41 remain relatively parallel and cannot move up and down. At this time, the athlete standing on the two pedals 41 can drive the pivot tube 11 to rotate by twisting the body, thereby forming a waist twisting fitness movement.

[0048] In summary, the exercise method of the present invention can be as follows:

[0049] The positioning screw 15 is passed through the limiting hole 101 and screwed into the first threaded hole 102 to limit the rotation angle of the rotating shaft tube 11. At this time, the two feet step on the two pedals 41 alternately to drive the upper swing arm 2 and the lower swing arm 3 to swing, and at the same time, drive the rotating shaft tube 11 to rotate left and right, so that the pedals 41 move downward and swing back and forth, forming a forward and backward stepping motion.

[0050] After the positioning screw 15 passes through the first positioning hole 105 and is screwed to the second threaded hole 106, the rotating shaft tube 11 cannot rotate. At this time, the two feet stand on the two pedals 41 and step on the two pedals 41 alternately to form a left-right stepping movement. In addition, the pedals 41 can be twisted while the two feet step on the lower pedal 41 to drive the lower body to rotate, forming a left-right stepping movement and a waist twisting movement.

[0051] After passing the positioning screw 15 through the second positioning hole 302 and screwing it with the nut 19, the lower swing arm 3 and the upper swing arm 2 cannot swing. At this time, the two feet stand on the two pedals 41 and alternately drive the two pedals 41 to rotate back and forth relative to the base 1, thereby driving the rotating shaft tube 11 to rotate and twist the lower body to form a waist-twisting exercise. Alternatively, the two pedals 41 can be twisted simultaneously and in the same direction with both feet. At this time, the rotating shaft tube 11 does not rotate, which can also form a waist-twisting fitness exercise.

[0052] As can be seen from the above fitness methods, the present invention can form a variety of exercise movements, such as twisting the waist, stepping, or twisting the waist and stepping simultaneously, allowing exercisers to make choices according to their needs, which is relatively practical. In addition, in the structure of the present invention, the upper swing arm 2 and the lower swing arm 3 are respectively connected by passing through the first rotating shaft 21 and the second rotating shaft 12 and the rotating shaft tube 11 to restrict the upper swing arm 2 and the lower swing arm 3 to swing only relative to the rotating shaft tube 11. At the same time, the rotating shaft tube 11 restricts the upper swing arm 2 and the lower swing arm 3 to rotate relative to the base 1. In this way, the upper swing arm 2 and the lower swing arm 3 are restricted to having only two rotation axes, the first rotating shaft 21 or the second rotating shaft 12 and the rotating shaft tube 11. Therefore, during exercise, the present invention can swing more stably, avoiding accidents.

[0053] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A waist-twisting and stepping fitness equipment, characterized in that: The fitness equipment includes: A base, to which a rotatable shaft tube is connected; An upper swing arm, wherein a first rotating shaft is installed in the middle of the upper swing arm, and the first rotating shaft is connected to the upper end of the rotating shaft tube and rotates to make the two ends of the upper swing arm swing up and down relative to the two sides of the base; A lower swing arm, wherein a second rotating shaft is connected between the middle of the lower swing arm and the rotating shaft tube, so that the lower swing arm rotates relative to the rotating shaft tube about the second rotating shaft, and the two ends of the lower swing arm swing up and down relative to the two sides of the base; A foot pedal assembly, wherein the same end of the upper swing arm and the lower swing arm are connected to the foot pedal assembly, and the foot pedal assembly includes a pedal and a connecting sleeve, wherein the pedal is connected to the connecting sleeve for rotation, and the side of the connecting sleeve is pivotally connected to the end of the upper swing arm and the end of the lower swing arm in sequence from top to bottom.

2. The fitness equipment according to claim 1, wherein A positioning shaft is fixed in the middle of the base, and the rotating shaft tube is located outside the positioning shaft and rotates. A first threaded hole is set on the side of the positioning shaft, and the first threaded hole is adapted to be spirally connected to a positioning screw. A strip-shaped limiting hole is set on one side of the rotating shaft tube, and the limiting hole is set horizontally. After the positioning screw passes through the limiting hole, it is spirally connected to the first threaded hole.

3. The fitness equipment according to claim 2, wherein: The lower swing arm has fixed stop pins under both sides of the second rotating shaft. When the rotating shaft tube rotates until the lower swing arm is parallel to the base, the two stop pins correspond to the two sides of the first threaded hole respectively, so that the positioning screw and the first threaded hole are spirally connected and located between the two stop pins.

4. The fitness equipment according to claim 1, wherein A positioning sleeve is fixed on one side in the middle of the base, and a first threaded hole is set on the end face of the upper end of the positioning sleeve, and the first threaded hole is adapted to be spirally connected to a positioning screw. A first positioning plate is fixed on one side of the rotating shaft tube, and the first positioning plate is set with a first positioning hole. When the rotating shaft tube is rotated until the lower arm is parallel to the base, the first positioning hole corresponds to above the first threaded hole, and the positioning screw passes through the first positioning hole and is spirally connected to the first threaded hole.

5. The fitness equipment according to claim 1, wherein: The lower sleeve is fixed in the middle of the base, and a positioning shaft is fixed in the middle of the lower sleeve. The positioning shaft is connected to the upper sleeve. The annular surface at the upper end of the upper sleeve and the annular surface at the lower end of the lower sleeve both protrude to form a shoulder, and the rotating shaft tube is confined between the shoulder of the lower sleeve and the shoulder of the upper sleeve.

6. The fitness equipment according to claim 5, wherein: A countersunk hole is set in the center of the upper sleeve, and the positioning shaft is inserted into the small hole at the lower end of the countersunk hole. A gasket is placed in the large hole at the upper end of the countersunk hole, and a screw is inserted downward until the screw and the positioning shaft are spirally connected and fastened, so that the gasket is located on the bottom surface of the large hole in the countersunk hole.

7. The fitness equipment according to claim 1, wherein A positioning sleeve is fixed on one side in the middle of the base, and a second threaded hole is set on the end face of the upper end of the positioning sleeve. The second threaded hole is adapted to be spirally connected to a positioning screw. A first positioning plate is fixed on one side of the rotating shaft tube, and the first positioning plate is set with a first positioning hole. When the rotating shaft tube is rotated until the lower arm is parallel to the base, the first positioning hole corresponds to above the second threaded hole, and the positioning screw passes through the first positioning hole and is spirally connected to the second threaded hole.

8. The fitness equipment according to claim 1, wherein A nut is fixed on one side of the rotating shaft tube, and the nut is adapted to be spirally connected to a positioning screw; the lower swing arm fixes a second positioning plate, the lower end of the second positioning plate extends below the lower swing arm, and a second positioning hole is provided on the part of the second positioning plate extending below the lower swing arm. When the rotating shaft tube is rotated until the lower swing arm is parallel to the base, the second positioning hole corresponds to the nut, and the positioning screw is adapted to pass through the second positioning hole and then be spirally connected to the nut, so that the positioning screw is stuck in the second positioning hole.

9. The fitness equipment according to any one of claims 1 to 8, characterized in that: The fitness equipment also includes a damper, the tail end of the damper is pivotally connected to the side below the rotating shaft tube, and the damper has a piston rod, the end of the piston rod is pivotally connected to the connecting sleeve.

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