Multifunctional body-building all-in-one machine

Abstract

The utility model relates to the technical field of fitness equipment, in particular to a multifunctional fitness all-in-one machine. Comprising a rack, an arm lever device, a display device and a pedal device, the bottom surface of the rack is a rectangular frame, two tripods are arranged on the upper side of the rack, a cross rod is arranged at the top between the two tripods, a display fixing rod is fixed on the cross rod, a display device is rotationally fixed at the head of the display fixing rod through a display shaft, and an arm rod device is rotationally fixed on a measuring rod of the triangular bracket on one side of the display device; the pedal fixing plates are arranged on two vertical frames on the side, facing the arm rod device, of the rectangular frame at the bottom of the rack 1 respectively, the pedal fixing plates are rotationally connected with the L-shaped supports through rotating shafts respectively, and the two L-shaped supports are fixed to the pedal device. The pedal has the advantages of being capable of turning vertically and small in occupied area. When the pedal air rod is boosted to be lifted upwards, the downward overturning stability of the pedal is improved. The pedal lock plate is buckled with the pedal lock hook to prevent the pedal from automatically turning down. The arm rod can move and rotate up and down.

Description

TECHNICAL FIELD

[0001] The utility model relates to body-building apparatus technical field especially relates to a multifunctional body-building integrated machine. BACKGROUND

[0002] The prior art multifunctional body-building integrated machine is mostly separated from the main machine, has large floor space and complicated operation; individual pedal and main machine are integrated, the pedal has no auxiliary push rod, the pedal is too heavy, operation is inconvenient and has great safety hazard; the display of the prior art product cannot be rotated up and down and switched between horizontal and vertical screens, and the arm rod of the prior art product can only be flipped in one direction and is not stable.

[0003] The utility model provides a multifunctional body-building integrated machine, can overcome above -mentioned defect, improve the quality of multifunctional body-building integrated machine. UTILITY MODEL CONTENTS

[0004] The utility model discloses a multifunctional body-building integrated machine, can effectively solve the problem in the background art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a multifunctional body-building integrated machine, including frame, arm rod device, display device, pedal device, the frame bottom is rectangular frame, and the upper side is provided with two tripods, and one horizontal rod is arranged between the two tripods on the top, and one display fixing rod is fixed on the horizontal rod, and the display fixing rod head is rotatably fixed with the display device by the display shaft, and the arm rod device is rotatably fixed on the measuring rod of the triangular support on the side of the display device, and the two vertical frames on the side of the rectangular frame of the frame 1 bottom are provided with a pedal fixing plate respectively, and the pedal fixing plate is rotatably connected with an L-shaped support by the rotating shaft, and the two L-shaped supports are fixed on the pedal device.

[0006] Preferably, the display device comprises a display, a display back plate is arranged on the back of the display, a rectangular shell boss is protruded in the middle of the display back plate, a circular hole is arranged in the middle of the shell boss, a lower turntable with two steps is arranged in the circular hole, an upper turntable with a stepped inner hole is buckled to the lower turntable, the stepped inner hole of the upper turntable is sleeved on the boss of the lower turntable, the upper turntable is fixedly connected with the bottom surface of the rectangular shell boss of the display back plate, the upper surface of the boss of the lower turntable is fixedly connected with a display fixing rod frame, a turntable cover is covered on the upper surface of the display fixing rod frame, the turntable cover is rotatably connected with the display shaft, and the display can rotate around the display shaft.

[0007] The pedal device comprises a pedal, two L-shaped supports fixed at one end of the pedal and connected with a pedal fixing plate, a pedal support plate rotatably fixed at the other end of the pedal, a U-shaped pedal support plate fixing frame fixed at both sides of the pedal support plate, a pedal lock plate supported by a torsion spring on the pedal support plate fixing frame and arranged vertically to the pedal, and a lock hole arranged in the middle of the pedal lock plate.

[0008] A pneumatic rod is rotatably fixed at each side of the rectangular frame at the bottom of the frame, a push rod of the pneumatic rod is rotatably fixed on the pedal, a lock hook frame is fixed at each side of the top surface of the rectangular frame of the frame 1, and a lock hook is arranged on the lock hook frame.

[0009] When the pedal is lifted upward to be vertical, the lock hole on the pedal lock plate is buckled with the lock hook, so that the pedal is in a vertical state, in this process, the pneumatic rod plays a boosting role, when the pedal is put down, the pneumatic rod plays a resistance role, and the pedal is prevented from falling too fast to cause an accident.

[0010] The arm rod device comprises a sliding rod, a chuck device and an arm rod rotating device, the sliding rod is a circular tube, a through slot is arranged along the length direction of the sliding rod, a platform penetrating the sliding rod is integrally arranged at the opposite side of the through slot in the inner cavity, a plurality of limiting holes are arranged in the center of the platform along the length direction, and a slide rail penetrating the sliding rod along the length direction is integrally arranged at each side of the through slot in the inner cavity.

[0011] The chuck device comprises a chuck mechanism, a positioning mechanism and a limiting mechanism, the chuck mechanism comprises two Ω-shaped limiting chucks, an arc-shaped slot is arranged in the inner side of the semicircular edge of the limiting chuck, a plurality of clamping grooves are arranged on the outer side wall of the arc-shaped slot, a positioning mechanism is fixed by bolts at one end of the bottom surface between the two limiting chucks, a plurality of slide rail bearings are arranged on the outer side of the bottom surface along the length direction of the bottom surface, a rotating shaft extending outward is fixed at the center of the arc of each limiting chuck, and a rotating shaft bearing is arranged on the rotating shaft.

[0012] The limiting mechanism comprises an arm lever connecting seat, one end of which is a hollow tube, and the other end is integrally provided with two parallel rectangular plates on both sides of the hollow tube, a sliding slot is arranged in each rectangular plate, a limiting block is arranged in each sliding slot, the outer side of the limiting block is closed by a limiting block cover plate, an open shaft hole is arranged on the outer side of the sliding slot of the arm lever connecting seat, the shaft hole is sleeved on the outer side of the bearing on the rotating shaft of the chuck device, and the shaft hole and the rotating shaft bearing are pressed tightly by lock bolts, one end of the two limiting blocks away from the limiting chuck is connected to a limiting block pull rod by a pin shaft, a arm lever is inserted into the inner hole of the arm lever connecting seat, and the arm lever is fixedly connected to the arm lever connecting seat by an arm lever fixing bolt, the arm lever is a hollow tube, symmetrical sliding slots are arranged on the side walls in the length direction, the two limiting block pull rods are inserted into the inner holes of the arm lever, and a pull rod pin shaft is fixed at the end of the limiting block pull rod and located in the sliding slot on the arm lever.

[0013] A positioning mechanism fixed between the two limiting chucks comprises a limiting sliding seat fixed between the two limiting chucks, the limiting sliding seat is a rectangular steel plate with a strip-shaped slot arranged in the middle, a through hole is arranged on the bottom surface of the strip-shaped slot, a limiting sliding rod is inserted into the through hole, the limiting sliding rod is thin at the bottom part of the strip-shaped slot and thick away from the bottom part of the strip-shaped slot, a positioning spring is sleeved on the limiting sliding rod between the thin part and the bottom part of the strip-shaped slot, and the limiting sliding rod is threadedly connected with a sliding rod fixing piece after penetrating through the slot bottom of the limiting sliding seat.

[0014] The arm lever rotating device comprises an arm lever and an unlocking handle sleeved on the outer side of the arm lever, two symmetrical small holes are arranged on the unlocking handle, the pull rod pin shaft fixed at the end of the limiting block pull rod is arranged in the small hole, and the limiting block pull rod is fixedly connected with the unlocking handle.

[0015] The slide rail bearing on the two sides of the limiting chuck of the chuck device is clamped on the two slide rails in the inner cavity of the sliding rod, the sliding rod is connected with the chuck device and the arm lever rotating device as a whole, and the thick end of the limiting sliding rod is inserted into the limiting hole on the platform in the inner cavity of the sliding rod.

[0016] Preferably, the sliding rod fixing piece of the positioning mechanism is pulled backward by hand, the limiting sliding rod is separated from the limiting hole on the sliding rod, the chuck mechanism can be moved up and down to a suitable position, the sliding rod fixing piece is loosened, and the limiting sliding rod is repositioned by being inserted into another limiting hole under the action of the positioning spring.

[0017] Preferably, the unlocking handle is pushed forward, the clamping block on the limiting block is separated from the clamping slot on the limiting chuck, the arm lever is rotated around the rotating shaft by moving the chuck mechanism, the unlocking handle is loosened when the arm lever is in a suitable position, the limiting block is reset under the action of the spring, and the clamping block is clamped into another clamping slot.

[0018] Preferably, the limiting block is provided with a protruding clamping block at one end, the clamping block can be clamped into each clamping slot on the limiting chuck, so as to ensure that the arm rod connecting seat moves in each clamping slot, thereby adjusting the angle between the arm rod connecting seat and the sliding rod.

[0019] Preferably, the end face of the limiting block towards the rotating shaft is provided with a spring hole, and a spring is installed in the spring hole and abuts against the side wall of the sliding groove on the rectangular plate of the arm rod connecting seat.

[0020] The beneficial effects of the present application are as follows:

[0021] 1. The pedal is connected with the main machine and can be flipped up and down, thereby enhancing the practicability of the product and reducing the floor area occupied by the product.

[0022] 2. The pedal is provided with an air rod, so that the air rod is compressed when the pedal is flipped down, the downward force of the pedal is reduced, the pedal is assisted to be flipped up when the pedal is flipped up, and the upward force is reduced.

[0023] 3. When the pedal is flipped up, the pedal locking plate will contact the pedal locking hook and fix the pedal, so that the pedal is prevented from being automatically flipped down, and the safety is enhanced.

[0024] 4. The arm rod can be moved up and down and flipped up and down.

[0025] 5. The display screen can be flipped up and down and switched between horizontal and vertical screens. BRIEF DESCRIPTION OF DRAWINGS

[0026] ATTACHMENT Figure 1 It is a structural schematic view of the present application.

[0027] ATTACHMENT Figure 2 It is a fixed three-dimensional structural schematic view of the display device of the present application.

[0028] ATTACHMENT Figure 3 It is a three-dimensional structural schematic view of the display of the present application.

[0029] ATTACHMENT Figure 4 It is an attachment Figure 3 Three-dimensional sectional view.

[0030] ATTACHMENT Figure 5 It is a three-dimensional structural schematic view of the pedal device of the present application Figure 1 .

[0031] ATTACHMENT Figure 6 It is a three-dimensional structural schematic view of the pedal device of the present application Figure 2 .

[0032] ATTACHMENT Figure 7 It is a three-dimensional structural schematic view of the pedal device of the present application Figure 3 .

[0033] ATTACHMENT Figure 8The utility model discloses remove the three -dimensional structure schematic drawing after unlocking handle.

[0034] Appendix Figure 9 The utility model discloses arm pole rotating device three -dimensional structure schematic drawing.

[0035] Appendix Figure 10 The utility model discloses slide pole three -dimensional structure schematic drawing.

[0036] Appendix Figure 11 The utility model discloses chuck mechanism exploded three -dimensional structure schematic drawing

[0037] Appendix Figure 12 It is the front view for chuck mechanism to remove one limit chuck.

[0038] Appendix Figure 13 The utility model discloses chuck mechanism three -dimensional structure schematic drawing.

[0039] Appendix Figure 14 The utility model discloses remove the three -dimensional structure schematic drawing after arm pole connecting seat.

[0040] Appendix Figure 15 The utility model discloses remove the three -dimensional structure schematic drawing after arm pole connecting seat and one limit chuck.

[0041] Appendix Figure 16 The utility model discloses limit block and spring mounting structure three -dimensional schematic diagram.

[0042] Appendix Figure 17 The utility model discloses pole connecting seat three -dimensional structure schematic Figure 1 .

[0043] Appendix Figure 18 The utility model discloses pole connecting seat three -dimensional structure schematic Figure 2 .

[0044] Appendix Figure 19 The utility model discloses limit block three -dimensional structure schematic diagram.

[0045] Appendix Figure 1-19, rack 1, arm rod device 2, display device 3, pedal device 4, display shaft 5, display fixing rod 6, display 7, display back plate 8, upper turntable 9, lower turntable 10, turntable cover 11, display fixing rod rack 11-1, pedal support plate 12, lock hole 13, torsional spring 14, pedal support plate fixing rack 15, pedal lock plate 16, air rod 17, lock hook rack 18, L-shaped support 19, pedal fixing plate 20, pedal 21, sliding rod 22, chuck device 23, unlocking handle 24, arm rod 25, limiting hole 26, platform 27, sliding rail 28, limiting sliding rod 29, limiting sliding seat 30, positioning spring 31, sliding rod fixing piece 32, limiting chuck 33, sliding rail bearing 34, clamping groove 35, arm rod connecting seat 36, limiting block pull rod 37, pull rod pin 38, limiting block cover plate 39, rotating shaft 40, locking bolt 41, spring hole 42, limiting block 43, spring 44, clamping block 45, lock hook 46, sliding groove 47. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0047] Embodiment 1

[0048] Attachment Figure 1 -19, a multifunctional fitness all-in-one machine, including rack 1, arm rod device 2, display device 3, pedal device 4, the bottom of the rack 1 is rectangular frame, two triangular supports are arranged on the upper side, a horizontal rod is arranged on the top between the two triangular supports, a display fixing rod 6 is fixed on the horizontal rod, the display device 3 is rotatably fixed on the display fixing rod 6 by a display shaft 5, the arm rod device 2 is rotatably fixed on the measuring rod of the triangular support on one side of the display device 3, two vertical frames on the rectangular frame of the bottom of the rack 1 towards the side of the arm rod device are each provided with a pedal fixing plate 20, the pedal fixing plate 20 is rotatably connected with an L-shaped support 19 by a rotating shaft, and the two L-shaped supports 19 are fixed on the pedal device 4.

[0049] The display device 3 includes a display 7, which is provided with a display back plate 8 at the back, a rectangular shell boss is raised in the middle of the display back plate 8, a circular hole is provided in the middle of the shell boss, a lower rotating disc 10 with two steps is provided in the circular hole, an upper rotating disc 9 with a stepped inner hole is buckled on the lower rotating disc 10, the stepped inner hole of the upper rotating disc 9 is sleeved on the boss of the lower rotating disc 10, the upper surface of the boss of the lower rotating disc 10 is fixedly connected with a display fixing rod rack 11-1, a rotating disc cover 11 is covered on the display fixing rod rack 11-1, the rotating disc cover 11 is rotationally connected with the display shaft 5, and the display 7 can rotate around the display shaft 5.

[0050] The pedal device 4 includes a pedal 21, two L-shaped supports 20 are fixed at one end of the pedal 21 and connected with a pedal fixing plate 19 on the supports, the other end is rotationally connected with a pedal support plate 12, a U-shaped pedal support plate fixing rack 15 is fixed on the inner side of the pedal 21 on both sides, a pedal locking plate 16 is supported on the pedal support plate fixing rack 15 by a torsion spring 14, so that the pedal locking plate 16 is perpendicular to the pedal 21, and a locking hole 13 is arranged in the middle of the pedal locking plate 16;

[0051] A gas rod 17 is rotationally fixed on each side of the rectangular frame at the bottom of the rack 1, and the push rod of the gas rod 17 is rotationally fixed on the pedal 21; a locking hook rack 18 is fixed on each side of the top surface of the rectangular frame of the rack 1, and a locking hook 46 is arranged on the locking hook rack 18;

[0052] When the pedal 21 is lifted upward to stand vertically, the locking hole 13 on the pedal locking plate 16 is buckled with the locking hook 46, so that the pedal 21 is in a vertical state, and in this process, the gas rod 17 plays a boosting role, and when the pedal 21 is put down, the gas rod 17 plays a resistance role, and the pedal 21 falls too fast to cause an accident.

[0053] The arm rod device 2 includes a sliding rod 22, a chuck device 23 and an arm rod rotating device; the sliding rod 22 is a circular pipe, a through slot is arranged along the length direction, a platform 27 is integrally arranged on the sliding rod 22 along the length direction opposite to the through slot in the inner cavity, a plurality of evenly distributed limiting holes 26 are arranged in the center of the platform along the length direction, and a sliding rail 28 is integrally arranged in the inner cavity along the length direction on each side of the slot;

[0054] The chuck device 23 comprises a chuck mechanism, a positioning mechanism and a limiting mechanism. The chuck mechanism comprises two Ω-shaped limiting chucks 33. An arc-shaped slot is arranged in the semicircular edge of each limiting chuck 33. A plurality of clamping grooves 35 are arranged on the outer side wall of the arc-shaped slot. A positioning mechanism is fixed at one end of the bottom surface between the two limiting chucks 33. A plurality of slide rail bearings 34 are arranged on the outer side of the bottom surface along the length direction of the bottom surface. A rotating shaft 40 extending outward is fixed at the center of the arc of each limiting chuck 33. A rotating shaft bearing is arranged on the rotating shaft 40.

[0055] The limiting mechanism comprises an arm rod connecting seat 36. One end of the arm rod connecting seat 36 is a hollow tube. Two parallel rectangular plates are integrally arranged on both sides of the hollow tube. A sliding groove is arranged in the middle of each rectangular plate. A limiting block 43 is arranged in each sliding groove. The outer side of the limiting block 43 is closed by a limiting block cover plate 39. An open shaft hole is arranged on the outer side of each sliding groove of the arm rod connecting seat 36. The shaft hole is sleeved on the outer side of the bearing on the rotating shaft 40 of the chuck device. The shaft hole and the rotating shaft bearing are pressed tightly by a locking bolt 41. The ends of the two limiting blocks 43 away from the limiting chucks 33 are connected to a limiting block pull rod 37 by a pin shaft. A arm rod 25 is inserted into the inner hole of the arm rod connecting seat 36. The arm rod 25 and the arm rod connecting seat 36 are fixedly connected by an arm rod fixing bolt. The arm rod 25 is a hollow tube. Symmetrical sliding grooves 47 are arranged on the side wall along the length direction. The two limiting block pull rods 37 are inserted into the inner hole of the arm rod 25. A pull rod pin shaft 38 is fixed at the end of the limiting block pull rod 37. The pull rod pin shaft 38 is located in the sliding groove 47 on the arm rod 25.

[0056] The positioning mechanism fixed between the two limiting chucks 33 comprises a limiting sliding seat 30 fixed between the two limiting chucks 33. The limiting sliding seat 30 is a rectangular steel plate with a strip-shaped slot in the middle. A through hole is arranged on the bottom surface of the strip-shaped slot. A limiting sliding rod 29 is inserted into the through hole. The limiting sliding rod 29 is thinner at the bottom part of the strip-shaped slot and thicker away from the bottom part. A positioning spring 31 is sleeved on the limiting sliding rod 29 between the thinner part and the bottom part of the strip-shaped slot. The limiting sliding rod 29 is threadedly connected with a sliding rod fixing piece 32 after passing through the slot bottom of the limiting sliding seat 30.

[0057] The arm rod rotating device comprises the arm rod 25 and an unlocking handle 24 sleeved on the outer side of the arm rod 25. Two symmetrical small holes are arranged on the unlocking handle 24. The pull rod pin shaft 38 fixed at the end of the limiting block pull rod 37 is installed in the small hole, so that the limiting block pull rod 37 is fixedly connected with the unlocking handle 24.

[0058] The slide rail bearing 34 on both sides of the limiting chuck 33 is clamped on the two slide rails 28 in the inner cavity of the slide rod 22, and the slide rod 22 is connected with the chuck device and the arm rod rotating device as a whole, and the thick end of the limiting slide rod 29 is inserted into the limiting hole 26 on the platform 27 in the inner cavity of the slide rod 22.

[0059] The slide rod fixing part 32 of the positioning mechanism is pulled backward by hand, the limiting slide rod 29 is disengaged from the limiting hole 26 on the slide rod 22, the chuck mechanism can be moved up and down to the appropriate position along the slide rod 22, then the slide rod fixing part 32 is loosened, and the limiting slide rod 29 is reinserted into the other limiting hole 26 due to the action of the positioning spring 31.

[0060] The unlocking handle 24 is pushed forward, the clamping block 45 on the limiting block 43 is disengaged from the clamping groove 35 on the limiting chuck 33, the arm rod 25 can be rotated around the rotating shaft 40 by moving the chuck mechanism, then the unlocking handle 24 is loosened, and the limiting block 43 is reset under the action of the spring 44, and the clamping block 45 is clamped into the other clamping groove 35.

[0061] One end of the limiting block 43 is provided with a protruding clamping block 45, the clamping block 45 can be clamped into the clamping groove 35 on the limiting chuck 33, so that the arm rod connecting seat 36 moves in the clamping groove 35, and then the angle between the arm rod connecting seat 36 and the slide rod 22 is adjusted.

[0062] The end face of the limiting block 43 towards the rotating shaft 40 is provided with a spring hole 42, the spring hole 42 is provided with the spring 44, and the outer side of the spring 44 is tightly arranged on the slide groove side wall on the rectangular plate of the arm rod connecting seat 36.

[0063] Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multifunctional fitness all-in-one machine, characterized in that: It includes frame, arm rod device, display device, pedal device; the frame (1) bottom is rectangular frame, and the upper side is provided with two tripods, and a horizontal rod is arranged on the top between the two tripods, a display fixing rod is fixed on the horizontal rod, the display is rotatably fixed on the display fixing rod by a display shaft, the arm rod device is rotatably fixed on the measuring rod of the triangular support on the side of the display device, and the two vertical frames on the side of the rectangular frame of the frame bottom towards the arm rod device are each provided with a pedal fixing plate, the pedal fixing plate is rotatably connected with an L-shaped support by a rotating shaft, and the two L-shaped supports are fixed on the pedal device.

2. The multifunctional fitness all-in-one machine of claim 1, wherein: The display device comprises a display, a display back plate arranged on the back of the display, a rectangular shell boss protruding in the middle of the display back plate, a circular hole arranged in the middle of the shell boss, a lower turntable with two steps arranged in the circular hole, an upper turntable with a stepped inner hole buckled to the lower turntable, the stepped inner hole of the upper turntable being sleeved on the boss of the lower turntable, the upper turntable being fixedly connected with the bottom surface of the rectangular shell boss of the display back plate, the upper surface of the boss of the lower turntable being fixedly connected with a display fixing rod holder, the upper surface of the display fixing rod holder being covered with a turntable cover, the turntable cover being rotatably connected with the display shaft, and the display being rotatable around the display shaft.

3. The multifunctional fitness all-in-one machine of claim 1, wherein: The pedal device comprises a pedal, two L-shaped supports fixed at one end of the pedal and connected with the pedal fixing plates, a pedal support plate rotatably connected and fixed at the other end of the pedal, a U-shaped pedal support plate fixing frame fixed on the inner side of the pedal on both sides of the pedal, a pedal lock plate supported by a torsion spring on the U-shaped pedal support plate fixing frame, a lock hole arranged in the middle of the pedal lock plate, a gas rod rotatably fixed on each side of the rectangular frame at the bottom of the frame, a push rod of the gas rod rotatably fixed on the pedal, a lock hook holder fixed on each side of the top surface of the rectangular frame of the frame (1), and a lock hook arranged on the lock hook holder. When the pedal is lifted upwards to stand vertically, the lock hole on the pedal lock plate is buckled with the lock hook, so that the pedal is in a vertical state. In this process, the gas rod plays a boosting role. When the pedal is put down, the gas rod plays a resistance role. If the pedal falls too fast, an accident may occur.

4. The multifunctional fitness all-in-one machine of claim 3, wherein: The arm rod device comprises a sliding rod, a chuck device and an arm rod rotating device. The sliding rod is a circular tube, and a through slot is arranged on the length direction of the sliding rod. A platform penetrating the whole sliding rod is integrally arranged on the opposite side of the through slot in the inner cavity. A plurality of evenly distributed limiting holes are arranged on the length direction of the center of the platform. A slide rail penetrating the sliding rod along the length direction is integrally arranged on each side of the inner cavity along the side of the slot.

5. The multifunctional fitness all-in-one machine of claim 1, wherein: The chuck device comprises a chuck mechanism, a positioning mechanism and a limiting mechanism. The chuck mechanism comprises two Ω-shaped limiting chucks. An arc-shaped slot is arranged in the semicircular edge of the limiting chuck. A plurality of evenly distributed clamping grooves are arranged on the outer side wall of the arc-shaped slot. A positioning mechanism is fixed on one end of the bottom surface between the two limiting chucks by bolts. A plurality of slide rail bearings are arranged on the outer side of the bottom surface along the length direction of the bottom surface. A rotating shaft extending to the outer side is fixed on the center of the arc of each limiting chuck. A rotating shaft bearing is arranged on the rotating shaft. ​ The limiting mechanism comprises an arm rod connecting seat, one end of which is a hollow tube, and the other end is integrally provided with two parallel rectangular plates on both sides of the hollow tube, a sliding slot is arranged in each rectangular plate, a limiting block is arranged in each sliding slot, the outer side of the limiting block is closed by a limiting block cover plate, an open shaft hole is arranged on the outer side of each sliding slot of the arm rod connecting seat, the shaft hole is sleeved on the outer side of the bearing on the rotating shaft of the chuck device, and the shaft hole and the rotating shaft bearing are pressed tightly by lock bolts, one end of the two limiting blocks away from the limiting chuck is connected to a limiting block pull rod by a pin shaft, a arm rod is inserted into the inner hole of the arm rod connecting seat, and the arm rod is fixedly connected to the arm rod connecting seat by an arm rod fixing bolt, the arm rod is a hollow tube, symmetrical sliding slots are arranged on the side walls in the length direction, the two limiting block pull rods are inserted into the inner holes of the arm rod, and a pull rod pin shaft is fixed at the end of the limiting block pull rod and located in the sliding slot on the arm rod. A positioning mechanism fixed between the two limiting chucks comprises a limiting sliding seat fixed between the two limiting chucks, the limiting sliding seat is a rectangular steel plate with a strip-shaped slot arranged in the middle, a through hole is arranged in the bottom surface of the strip-shaped slot, a limiting sliding rod is inserted into the through hole, the limiting sliding rod is thin at the bottom part of the strip-shaped slot and thick away from the bottom part of the strip-shaped slot, a positioning spring is sleeved on the limiting sliding rod between the thin part of the limiting sliding rod and the bottom part of the strip-shaped slot, and the limiting sliding rod is threadedly connected to a sliding rod fixing piece after penetrating through the slot bottom of the limiting sliding seat. The arm rod rotating device comprises an arm rod and an unlocking handle sleeved on the outer side of the arm rod, two symmetrical small holes are arranged on the unlocking handle, the pull rod pin shaft fixed at the end of the limiting block pull rod is arranged in the small hole, and the limiting block pull rod is fixedly connected to the unlocking handle. The slide rail bearing on the two sides of the limiting chuck of the chuck device is clamped on the two slide rails in the inner cavity of the sliding rod, the sliding rod is connected to the chuck device and the arm rod rotating device, the thick end of the limiting sliding rod is inserted into the limiting hole on the platform in the inner cavity of the sliding rod.

6. The multifunctional fitness all-in-one machine of claim 5, wherein: The sliding rod fixing piece of the positioning mechanism is pulled backward by hand, the limiting sliding rod is separated from the limiting hole on the sliding rod, the chuck mechanism can be moved up and down to a suitable position, then the sliding rod fixing piece is loosened, and the limiting sliding rod is reinserted into another limiting hole due to the action of the positioning spring.

7. The multifunctional fitness all-in-one machine of claim 5, wherein: The unlocking handle is pushed forward, the clamping block on the limiting block is separated from the clamping slot on the limiting chuck, the arm rod is rotated around the rotating shaft by moving the chuck mechanism, then the unlocking handle is loosened, the limiting block is reset under the action of the spring, and the clamping block is clamped into another clamping slot.

8. The multifunctional fitness all-in-one machine of claim 5, wherein: One end of the limiting block is provided with a protruding clamping block, the clamping block can be clamped into each clamping slot on the limiting chuck, so that the arm rod connecting seat moves in each clamping slot, and then the angle between the arm rod connecting seat and the sliding rod is adjusted.

9. The multi-functional fitness all-in-one machine of claim 5, wherein: A spring hole is arranged on the end face of the end of the limiting block facing the rotating shaft, a spring is arranged in the spring hole, and the outer side of the spring is tightly pressed against the sliding slot side wall on the rectangular plate of the arm rod connecting seat.

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