CN220459826U

CN220459826U - Folding body-building push-pull machine

Info

Publication number: CN220459826U
Application number: CN202321714781.1U
Authority: CN
Inventors: 周新才; 周剑峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2024-02-09
Anticipated expiration: 2033-07-03

Abstract

The utility model relates to a folding body-building push-pull machine. The vertical push-pull rod capable of swinging back and forth is arranged in front of the base, the handle is grasped to push and pull the load back and forth, and the front end of the conducting shaft is movably connected with the lower end of the push-pull rod and can be conveniently detached. The parallel outer frame is arranged in front of the push-pull rod to form a parallelogram, and the lower end of the parallel outer frame and the support rod are fixed in a triangle, so that the support is ensured not to change the viewing angle along with the swing of the push-pull rod. The lower end of the push-pull rod is movably connected with the front end of the guide shaft below the fixed seat, and drives the generator through reciprocating motion, so that the load mechanism can realize adjustable work. When the folding device is folded, the push-pull rod is connected with the transmission shaft, and then the clamping pin of the support rod is loosened, so that the push-pull rod can be put flat. The folding body-building push-pull machine is superior to running machine and sport bicycle in safety, resistance and less wear of knee joint, and has shoulder muscle to drive the traction and compression of shoulder and nail bone during push-pull motion, so that the scapulohumeral periarthritis can be recovered fast.

Description

Folding body-building push-pull machine

Technical Field

The utility model relates to the technical field of fitness equipment, in particular to a folding type fitness push-pull machine.

Background

The pull saw body-building device with the publication number of CN208160883U is push-pull body-building equipment, and after years of use, the original product is found to have the following defects that firstly, the parts are too many, the whole body is heavy, the device occupies a space, the movement is inconvenient, and secondly, the calorie calculation is not precise.

Disclosure of Invention

The utility model aims to solve the technical problems that: provides a folding body-building push-pull machine, which solves the problems of heavy and inconvenient movement of a pull-up saw body-building machine.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a folding body-building push-pull machine, including push-pull rod, conductive shaft and fixing base, but conductive shaft horizontal migration's setting is in the below of fixing base, the vertical slope of push-pull rod sets up in the place ahead of fixing base, the front end of conductive shaft and the lower extreme swing joint of push-pull rod, the front end top of fixing base rotates and is connected with the bracing piece, the upper end of bracing piece leans forward to the fixing base, the upper end of bracing piece links to each other in the lower part of push-pull rod through main articulated shaft hinge, the top of push-pull rod is provided with the handle, the bottom of fixing base is provided with load mechanism, the conductive shaft links to each other with load mechanism transmission, promote and pull the handle, the push-pull rod can drive the conductive shaft and do horizontal reciprocating motion, the lower extreme fixedly connected with screens wheel of bracing piece, the vertical movable grafting of front end of fixing base has the screens round, the notch with screens round cooperation is seted up to the bottom of screens round, in the notch that the screens round when upwards sliding, make screens round and bracing piece unable rotation.

As a preferred implementation scheme, the upper portion of push-and-pull rod inclines to one side of fixing base, and the lower part of push-and-pull rod sets up to the open-ended outer tube of lower extreme, is provided with linear bearing on the inner chamber wall of outer tube, and the outer tube has inserted the telescopic link from the lower extreme, and the upper end of telescopic link can be in the reciprocal slip of straight line in the outer tube, and the lower extreme of telescopic link is provided with one section external screw thread, and telescopic link is close to lower extreme external screw thread department and still fixedly connected with regulation rim plate, and the front end of guiding axle articulates there is the internal thread sleeve pipe, and the lower extreme of telescopic link passes through external screw thread and internal thread sleeve pipe threaded connection.

As a preferred embodiment, the bottom of the fixing seat is provided with a front guide wheel set and a rear guide wheel set which are arranged in a discrete manner along the axial direction of the guide shaft, two pulleys which are arranged up and down are respectively arranged on the front guide wheel set and the rear guide wheel set, and the guide shaft sequentially passes through the front guide wheel set and the rear guide wheel set and is clamped up and down by the two pulleys of the front guide wheel set and the two pulleys of the rear guide wheel set, and the guide shaft moves axially back and forth under the guide action of the four pulleys.

As a preferred implementation scheme, two baffles are fixedly connected to the conducting shaft, a front buffer spring and a rear buffer spring are sleeved on the conducting shaft between the two baffles, and the front guide wheel set and the rear guide wheel set are arranged between the front buffer spring and the rear buffer spring.

As a preferred implementation scheme, load mechanism includes the generator, the generator sets up in the bottom of fixing base, the generator pivot sets up and pivot axle head fixedly connected with initiative synchronizing wheel perpendicular to conduction axle, the bottom of fixing base still rotates and is connected with one with initiative synchronizing wheel complex passive synchronizing wheel, the confined hold-in range is established on the outer circumference of initiative synchronizing wheel and passive synchronizing wheel, the spacer is equipped with the dogtooth on lateral surface and the medial surface of hold-in range, the dogtooth of spacer medial surface cooperatees with the transmission shaft and the synchronizing wheel of generator respectively, the top equipartition of conduction axle has a plurality of dogteeth with hold-in range complex, the dogtooth of hold-in range bottom lateral surface and the dogtooth cross fit at conduction axle top, the dogtooth at conduction axle top pulls the hold-in range and rotates, the hold-in range drives the generator and rotates the electricity generation, the generator positive negative pole is connected with the load.

As a preferred embodiment, the conducting shaft is a square tube, and the pulley wheel surface is provided with a wheel groove matched with the square tube.

As a preferred implementation scheme, the screens round pin runs through the fixing base, and the upper and lower both ends of screens round pin stretch out outside the fixing base, and articulated on the fixing base has a "Z" type footboard, and the footboard middle part articulates on the fixing base, and the upper and lower both ends of footboard stretch out from the upper and lower side of fixing base respectively, and the lower extreme of footboard is provided with the slotted hole, screens round pin lower extreme swing joint in the slotted hole, is provided with the vertically flexible reset spring between footboard upper end bottom and the fixing base, and dial the footboard upper end upwards makes the footboard lower extreme lower hem, but traction screens round pin descends, makes screens round pin upper end break away from the notch of screens wheel, dials the footboard upper end downwards and makes the footboard lower extreme pendulum, but traction screens round pin rise, makes screens round pin upper end insert the notch of screens wheel.

As a preferred embodiment, one side of the middle upper part of the push-pull rod, which is far away from the fixed seat, is provided with a parallel outer frame, a parallelogram is formed by one side and the parallel outer frame between the upper part of the main hinge shaft and the handle on the push-pull rod, the joints of the parallel outer frame and the four sides of the push-pull rod are all hinged, the upper side and the lower side of the parallel outer frame are arranged as horizontal sides, one end of the inclined rod is fixed on the horizontal side of the bottom of the parallel outer frame, the other end of the inclined rod is fixed in the middle part of the supporting rod, and a bracket is fixed on the horizontal side of the top of the parallel outer frame.

As a preferred embodiment, the bottom of the fixing seat is provided with a front caster near the front end, and the bottom of the fixing seat is provided with a rear foot rod near the rear end.

As a preferred implementation scheme, the bottom of fixing base still is provided with adjusting resistor, and the generator is continuous with adjusting resistor electricity, and adjusting resistor's regulation control gear sets up on the support, and adjusting resistor is the load.

The beneficial effects of the utility model are as follows: the lower end of the push-pull rod is connected with the telescopic rod in a sliding manner, the telescopic rod is detachably connected to the front end of the transmission shaft through a screw rod at the lower end, the telescopic rod slides at the lower end of the push-pull rod while the lower end of the push-pull rod drives the telescopic rod to swing, excessive interaction force between personnel and the body-building device in the moving process is reduced, the support rod at the front end of the fixing base articulates and supports the push-pull rod, the upper end and the lower end of the push-pull rod swing around the articulation position with the support rod during the moving, the lower end of the support rod is clamped on a clamping pin at the front end of the fixing base through a clamping wheel, the clamping wheel is articulated at the front end of the fixing base, and the folding structure of the push-pull rod enables the whole disassembly and folding to be convenient; the front castor and the rear foot rod at the bottom of the fixed seat not only ensure that the support is stable, but also are convenient to move; the conducting shaft is positioned below the fixed seat through the front caster wheel group and the rear caster wheel group, so that the structure is lightened, and the movement direction and the position of the conducting shaft are determined; the load mechanism adopts the generator, and the conduction shaft is connected with the generator transmission through the hold-in range, and resistance when adjusting resistance can control the motion, and the adjustment resistance links to each other with the module of calculating the calorie can be accurate feedback out the motion volume.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic view of the present utility model in use;

FIG. 2 is a schematic illustration of the folded device of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 1;

reference numerals in fig. 1 to 3 illustrate: 1. a fixing seat; 2. a clamping pin; 2-1, pedals; 2-2, oblong holes; 2-3, a return spring; 3. a clamping wheel; 4. a support rod; 5. a main hinge shaft; 6. a push-pull rod; 7. a handle; 8. a bracket; 9. a parallel outer frame; 10. an inclined lever; 11. an outer sleeve; 12. a telescopic rod; 13. adjusting the wheel disc; 14. an internally threaded sleeve; 15. a front buffer spring; 16. a front set of wheels; 17. a leading wheel set; 18. convex teeth; 19. a generator; 20. a synchronous belt; 21. a synchronizing wheel; 22. a rear guide wheel group; 23. a rear buffer spring; 24. adjusting the resistance; 25. a conductive shaft; 26. a rear foot bar; 27. a pulley; 28. a baffle; 29. and a master synchronizing wheel.

Detailed Description

Specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

The folding body-building push-pull machine as shown in fig. 1-3 comprises a push-pull rod 6, a conducting shaft 25 and a fixed seat 1, wherein the conducting shaft 25 is arranged below the fixed seat 1 in a horizontally movable mode, the push-pull rod 6 is vertically and obliquely arranged in front of the fixed seat 1, the front end of the conducting shaft 25 is movably connected with the lower end of the push-pull rod 6, the top of the front end of the fixed seat 1 is rotationally connected with a supporting rod 4, the upper end of the supporting rod 4 is obliquely arranged in front of the fixed seat 1, the upper end of the supporting rod 4 is hinged and connected to the lower portion of the push-pull rod 6 through a main hinge shaft 5, the top of the push-pull rod 6 is provided with a handle 7, the bottom of the fixed seat 1 is provided with a load mechanism, the conducting shaft 25 is in transmission connection with the load mechanism, the handle 7 is pushed and pulled, the push-pull rod 6 can drive the conducting shaft 25 to do horizontal reciprocating motion, the lower end of the supporting rod 4 is fixedly connected with a clamping wheel 3, the front end of the fixed seat 1 is vertically and movably inserted with a clamping pin 2, the bottom of the clamping wheel 3 is provided with a notch matched with the clamping pin 2, and the clamping wheel 3 is inserted into the notch of the clamping wheel 3 when the clamping pin 2 slides upwards.

Specifically, a person stands on the fixing seat 1 and pulls the handle 7 to push and pull forwards and backwards, when the person moves, the mobile phone or the tablet personal computer can be placed on the support 8 to adjust the adjusting control gear of the adjusting resistor 24, consumed calorie data can be fed back, the handle drives the push-pull rod 6 to swing left and right around the main hinge shaft 5, one push-pull rod 6 takes the main hinge shaft 5 as a fulcrum to form a lever principle, the lower end of the push-pull rod 6 swings left and right around the main hinge shaft 5, the lower end of the push-pull rod 6 drives the telescopic rod 12 to swing left and right, meanwhile, the upper end of the telescopic rod 12 slides repeatedly in a straight line in the outer sleeve 11 at the lower end of the push-pull rod 6, and the telescopic rod 12 drives the conducting shaft 25 to move repeatedly in a straight line.

The upper portion of the push-pull rod 6 is inclined to one side of the fixed seat 1, the lower portion of the push-pull rod 6 is provided with an outer sleeve 11 with an opening at the lower end, a linear bearing is arranged on the inner cavity wall of the outer sleeve 11, the outer sleeve 11 is inserted with a telescopic rod 12 from the lower end, the upper end of the telescopic rod 12 can linearly and reciprocally slide in the outer sleeve 11, the lower end of the telescopic rod 12 is provided with a section of external thread, an adjusting wheel disc 13 is fixedly connected to the position, close to the external thread, of the lower end of the telescopic rod 12, an inner thread sleeve 14 is hinged to the front end of the conducting shaft 25, and the lower end of the telescopic rod 12 is in threaded connection with the inner thread sleeve 14 through the external thread.

The bottom of the fixing seat 1 is provided with a front guide wheel set 17 and a rear guide wheel set 22 which are discretely arranged along the axial direction of a transmission shaft 25, two pulleys 27 which are arranged up and down are respectively arranged on the front guide wheel set 17 and the rear guide wheel set 22, the transmission shaft 25 sequentially passes through the front guide wheel set 17 and the rear guide wheel set 22 and is clamped up and down by the two pulleys 27 of the front guide wheel set 17 and the two pulleys 27 of the rear guide wheel set 22, and the front guide wheel set 17 and the rear guide wheel set 22 axially move back and forth under the guiding action of the four pulleys 27. The guide shaft 25 is horizontally movably disposed on the front guide pulley group 17 and the rear guide pulley group 22, and the front guide pulley group 17 and the rear guide pulley group 22 position the guide shaft 25 so that the guide shaft 25 reciprocates in one direction.

The conducting shaft 25 is also fixedly connected with two baffles 28, the conducting shaft 25 between the two baffles 28 is sleeved with a front buffer spring 15 and a rear buffer spring 23, and the front guide wheel set 17 and the rear guide wheel set 22 are arranged between the front buffer spring 15 and the rear buffer spring 23. The front and rear buffer springs 15 and 23 and the damper 28 limit the movement range of the conductive shaft 25.

The load mechanism comprises a generator 19, the generator 19 is arranged at the bottom of the fixed seat 1, a rotating shaft of the generator 19 is perpendicular to a transmission shaft 25, an active synchronizing wheel 29 is fixedly connected to the shaft end of the rotating shaft, a passive synchronizing wheel 21 matched with the active synchronizing wheel 29 is further rotationally connected to the bottom of the fixed seat 1, a closed synchronous belt 20 is sleeved on the outer circumferences of the active synchronizing wheel 29 and the passive synchronizing wheel 21, convex teeth 18 are uniformly distributed on the outer side surface and the inner side surface of the synchronous belt 20, the convex teeth 18 on the inner side surface of the synchronous belt 20 are respectively matched with a transmission shaft of the generator 19 and the synchronous wheel 21, a plurality of convex teeth 18 matched with the synchronous belt 20 are uniformly distributed on the top of a transmission shaft 25, the convex teeth 18 on the outer side surface of the bottom of the synchronous belt 20 are in cross fit with the convex teeth 18 on the top of the transmission shaft 25, the convex teeth 18 on the top of the transmission shaft 25 pull the synchronous belt 20, the synchronous belt 20 drives the generator 19 to rotate to generate power, and the positive and negative electrodes of the generator are connected with loads. The convex teeth 18 at the top of the conducting shaft 25 drive the synchronous belt 20 to run, the synchronous belt 20 drives the motor 19 and the synchronous wheel 21 to rotate, and the conducting friction area is increased by meshing the synchronous belt 20 for transmission, so that the durability and the running stability are ensured.

The conductive shaft 25 is a square tube, and a pulley groove matched with the square tube is formed in the pulley surface. The clamping wheel 3 is clamped at the top of the clamping pin 2, so that the fixing of the supporting rod 4 and the push-pull movement of personnel are not influenced, and the clamping wheel can be conveniently detached.

The clamping pin 2 penetrates through the fixing seat 1, the upper end and the lower end of the clamping pin 2 extend out of the fixing seat 1, the fixing seat 1 is hinged with a Z-shaped pedal 2-1, the middle of the pedal 2-1 is hinged to the fixing seat 1, the upper end and the lower end of the pedal 2-1 extend out of the upper portion and the lower portion of the fixing seat 1 respectively, the lower end of the pedal 2-1 is provided with a slotted hole 2-2, the lower end of the clamping pin 2 is movably connected in the slotted hole 2-2, a vertically telescopic reset spring 2-3 is arranged between the bottom of the upper end of the pedal 2-1 and the fixing seat 1, the upper end of the pedal 2-1 is pulled upwards to enable the lower end of the pedal 2-1 to swing downwards, the upper end of the clamping pin 2-1 is pulled downwards to be separated from a notch of the clamping wheel 3, and the upper end of the clamping pin 2-1 is pulled downwards to enable the upper end of the clamping pin 2 to be inserted into the notch of the clamping wheel 3. When the clamping pin 2 is moved, the clamping wheel 3 is separated from the clamping pin 2, and the push-pull rod 6 is separated from fixation.

Wherein, the middle-upper portion of push-and-pull rod 6 is provided with parallel frame 9 far away from one side of fixing base 1, be a limit and parallel frame 9 between handle 7 with main articulated shaft 5 on the push-and-pull rod 6 and constitute parallelogram, the junction on four limits of parallel frame 9 and push-and-pull rod 6 is articulated continuous, two limit sets up to the horizontal limit about the parallel frame 9, the one end of hang lever 10 is fixed on the horizontal edge of parallel frame 9 bottom, the other end of hang lever 10 is fixed at the middle part of bracing piece 4, the horizontal edge at parallel frame 9 top is fixed with support 8. In order to ensure that the mobile phone or the tablet personal computer keeps a comfortable viewing angle, the horizontal edges at the bottom of the parallel outer frame 9 are fixed on the supporting rod 4 through the inclined rods 10, so that the upper horizontal edge and the lower horizontal edge of the formed parallelogram can always keep a horizontal state, and the angle of the bracket 8 cannot be changed along with the left-right swing of the handle 7.

Wherein, the bottom of fixing base 1 is provided with preceding truckle 16 near the front end department, and the bottom of fixing base 1 is provided with back foot pole 26 near the rear end department. The fixed support structure at the bottom of the fixed seat 1 can move by pushing the fixed seat 1 when the rear end is lifted, and can play a supporting role and move.

The bottom of the fixing seat 1 is further provided with an adjusting resistor 24, the generator 19 is electrically connected with the adjusting resistor 24, an adjusting control gear of the adjusting resistor 24 is arranged on the bracket 8, and the adjusting resistor 24 is a load. The kinetic energy of the movement is converted by the generator 19 into electrical energy which is dissipated over the regulating resistor 24 for providing electrical energy for regulating the control gear arranged on the support 8.

The working process of the utility model is as follows:

when the exercise machine is used, as shown in fig. 1, a person stands on the top of the fixed seat 1, adjusts the adjusting control gear on the bracket 8 to set the resistance, repeatedly pushes and pulls the handle 7 to conduct muscle pulling and relaxing exercise until the exercise is finished, and the exercise machine is used as an overall resistance exercise machine, when the exercise machine is used, the external muscle below the neck is felt to be strong in resistance, the knee is not required to be greatly bent when the push-pull machine is used, the knee wear is limited, so the knee is not damaged, or a person who cannot run or ride an exercise bicycle due to severe wear can also move on the push-pull machine, in addition, shoulder muscles drive shoulder bones to be pulled and compressed all the time in the push-pull exercise, and the recovery can be accelerated due to scapulohumeral periarthritis;

when folding, as shown in fig. 2, the adjusting wheel disc 13 is rotated to separate the telescopic rod 12 from the internally threaded sleeve 14, the clamping pin 2 is adjusted to separate the clamping wheel 3 from the clamping pin 2, the push-pull rod 6 is separated from fixation, and then the push-pull rod 6 and the connected parts thereof are placed on the top of the fixed seat 1, so that the folding process is completed.

The above embodiments are merely illustrative of the principles and effects of the present utility model, and some of the applied embodiments, and are not intended to limit the utility model; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present utility model.

Claims

1. The utility model provides a folding body-building push-pull machine, a serial communication port, including push-pull rod (6), conduction axle (25) and fixing base (1), but conduction axle (25) horizontal migration's setting is in the below of fixing base (1), push-pull rod (6) vertical tilt's setting is in the place ahead of fixing base (1), the front end of conduction axle (25) and the lower extreme swing joint of push-pull rod (6), the front end top rotation of fixing base (1) is connected with bracing piece (4), the upper end of bracing piece (4) is to fixing base (1) the place ahead slope, the upper end of bracing piece (4) links to each other in the lower part of push-pull rod (6) through main articulated shaft (5), the top of push-pull rod (6) is provided with handle (7), the bottom of fixing base (1) is provided with load mechanism, conduction axle (25) and load mechanism transmission link to each other, promote and pull handle (7), the front end of conduction axle (25) can drive and do horizontal reciprocating motion, the lower extreme fixedly connected with screens wheel (3) of bracing piece (4), the front end vertical movable screens (2) of fixing base (1) have the screens to draw in the screens wheel (2) and insert the notch in the top of the cooperation when inserting (2) and inserting in the notch (2), so that the clamping wheel (3) and the supporting rod (4) cannot rotate.

2. The folding body-building push-pull machine according to claim 1, characterized in that the upper part of the push-pull rod (6) is inclined to one side of the fixed seat (1), the lower part of the push-pull rod (6) is provided with an outer sleeve (11) with an open lower end, a linear bearing is arranged on the inner cavity wall of the outer sleeve (11), the outer sleeve (11) is inserted with a telescopic rod (12) from the lower end, the upper end of the telescopic rod (12) can linearly and reciprocally slide in the outer sleeve (11), the lower end of the telescopic rod (12) is provided with a section of external thread, an adjusting wheel disc (13) is fixedly connected to the position of the telescopic rod (12) close to the external thread at the lower end, the front end of the conducting shaft (25) is hinged with an inner thread sleeve (14), and the lower end of the telescopic rod (12) is in threaded connection with the inner thread sleeve (14) through the external thread.

3. The folding body-building push-pull machine according to claim 1, wherein the bottom of the fixed seat (1) is provided with a front guide wheel set (17) and a rear guide wheel set (22) which are arranged in a discrete manner along the axial direction of the transmission shaft (25), two pulleys (27) which are arranged up and down are respectively arranged on the front guide wheel set (17) and the rear guide wheel set (22), the transmission shaft (25) sequentially passes through the front guide wheel set (17) and the rear guide wheel set (22) and is clamped up and down by the two pulleys (27) of the front guide wheel set (17) and the two pulleys (27) of the rear guide wheel set (22), and the transmission shaft moves axially back and forth under the guiding action of the four pulleys (27).

4. A folding body-building push-pull machine according to claim 3, characterized in that the conducting shaft (25) is fixedly connected with two baffles (28), the conducting shaft (25) between the two baffles (28) is sleeved with a front buffer spring (15) and a rear buffer spring (23), and the front guide wheel set (17) and the rear guide wheel set (22) are arranged between the front buffer spring (15) and the rear buffer spring (23).

5. The folding body-building push-pull machine according to claim 1, wherein the load mechanism comprises a generator (19), the generator (19) is arranged at the bottom of the fixed seat (1), a rotating shaft of the generator (19) is perpendicular to the transmission shaft (25) and is fixedly connected with an active synchronizing wheel (29), a passive synchronizing wheel (21) matched with the active synchronizing wheel (29) is rotationally connected at the bottom of the fixed seat (1), the closed synchronous belt (20) is sleeved on the outer circumferences of the active synchronizing wheel (29) and the passive synchronizing wheel (21), convex teeth (18) are uniformly distributed on the outer side surface and the inner side surface of the synchronous belt (20), the convex teeth (18) on the inner side surface of the synchronous belt (20) are respectively matched with a transmission shaft of the generator (19) and the synchronizing wheel (21), a plurality of convex teeth (18) matched with the synchronous belt (20) are uniformly distributed at the top of the transmission shaft (25), the convex teeth (18) on the outer side surface of the bottom of the synchronous belt (20) are in cross fit with the convex teeth (18) at the top of the transmission shaft (25), the convex teeth (18) at the top of the transmission shaft (20) are rotationally connected with the synchronous belt (20), and the generator (20) is rotationally driven by the synchronous belt (20).

6. The folding body-building push-pull machine according to claim 1, wherein the conducting shaft (25) is a square tube, and the pulley (27) is provided with a pulley groove matched with the square tube.

7. The folding body-building push-pull machine according to claim 1, wherein the clamping pin (2) penetrates through the fixing seat (1), the upper end and the lower end of the clamping pin (2) extend out of the fixing seat (1), the fixing seat (1) is hinged with a Z-shaped pedal (2-1), the middle part of the pedal (2-1) is hinged on the fixing seat (1), the upper end and the lower end of the pedal (2-1) extend out of the upper part and the lower part of the fixing seat (1) respectively, the lower end of the pedal (2-1) is provided with a slotted hole (2-2), the lower end of the clamping pin (2) is movably connected in the slotted hole (2-2), a vertically telescopic reset spring (2-3) is arranged between the bottom of the upper end of the pedal (2-1) and the fixing seat (1), the upper end of the pedal (2-1) is shifted upwards to enable the lower end of the pedal (2-1) to swing downwards, the clamping pin (2) can be pulled downwards, the upper end of the clamping pin (2-1) is separated from a notch of the clamping wheel (3), the lower end of the pedal (2-1) is pulled upwards, and the clamping pin (2) can be pulled upwards to enable the upper end of the pedal (2) to swing upwards.

8. The folding body-building push-pull machine according to claim 1, characterized in that a parallel outer frame (9) is arranged on one side, far away from the fixed seat (1), of the middle upper portion of the push-pull rod (6), a parallelogram is formed between the upper portion of the main hinge shaft (5) of the push-pull rod (6) and the handle (7) and the parallel outer frame (9), joints of the four sides of the parallel outer frame (9) and the push-pull rod (6) are hinged, the upper side and the lower side of the parallel outer frame (9) are arranged to be horizontal sides, one end of an inclined rod (10) is fixed on the horizontal side of the bottom of the parallel outer frame (9), the other end of the inclined rod (10) is fixed on the middle of the supporting rod (4), and a bracket (8) is fixed on the horizontal side of the top of the parallel outer frame (9).

9. The folding body-building push-pull machine according to claim 1, characterized in that the bottom of the fixed seat (1) is provided with a front castor (16) near the front end, and the bottom of the fixed seat (1) is provided with a rear foot bar (26) near the rear end.

10. The folding body-building push-pull machine according to claim 5, wherein the bottom of the fixed seat (1) is further provided with an adjusting resistor (24), the generator (19) is electrically connected with the adjusting resistor (24), an adjusting control gear of the adjusting resistor (24) is arranged on the bracket (8), and the adjusting resistor (24) is a load.