Multifunctional fitness equipment with hydraulic multi-speed adjustment of rowing leg press resistance

Abstract

The purpose of the present invention is to provide a fitness device, in particular to a multifunctional fitness device with hydraulic multi-speed adjustment of rowing leg-pressing and leg-pressing resistance. It includes a rectangular bench surface, a hinge, a square tube bench leg, a cross-plate short square tube, a rectangular plate short square tube, a round tube, a rectangular tube, a hydraulic telescopic rod, a leg-pressing rod, a short sleeve, an outer square tube, an inner square tube, a hook foot rod, a hand pull rod, a spring thimble, an elliptical flat tube, a pipe sleeve, a push rod, a tension belt (spring), and an induction sounder. The function of the present invention is relatively complete, and many parts of the human body can be exercised in a relatively systematic manner. The intensity of the exercise can be arbitrarily adjusted through the multi-speed adjustment chucks on the three hydraulic telescopic rods, and the basic value of the power generated by the human body itself and the specific value of the power increased after a period of exercise can be measured. It has the advantages of simple structure, low cost, beautiful appearance, safety and lightness, no noise when in use, easy to disassemble and assemble, retractable and free, space-saving, convenient for transportation, and easy to promote and popularize.

Description

Technical Field

[0001] The invention relates to a fitness equipment, in particular to a multifunctional fitness equipment with hydraulic multi-speed adjustment of rowing leg-pressing and pushing resistance. Background Art

[0002] After entering the 21st century, people's work and life pace is getting faster and faster. Most people do not have a lot of time and abundant financial resources to go to the gym to exercise, so there is an urgent need for a multi-functional and small fitness equipment for home exercise. To this end, I invented a utility model patent-a simple and safe spring force measurement multifunctional fitness equipment (patent number ZL201621127521.4), which can basically meet this demand. However, during use, it was found that it still has the following shortcomings: first, the resistance of push-ups, leg kicks, pull-ups, and push-downs is generated by springs, and to change the resistance, the spring must be replaced, which is very inconvenient; second, the push-ups and leg kicks will produce a lot of noise due to direct metal friction during operation; third, it cannot be folded to the maximum extent, which takes up space and is inconvenient to transport; fourth, it lacks rowing function. Summary of the invention

[0003] The present invention relates to a fitness device, in particular to a multifunctional fitness device with hydraulic multi-speed adjustment of rowing leg press resistance. It can solve the shortcomings of the above utility model patents, better exercise and grow the muscles of the chest, arms, legs, abdomen and other parts of the human body, thereby enhancing the physical fitness of the human body.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] A multifunctional fitness machine with hydraulic multi-speed adjustment of rowing leg press resistance, the composition structure of which is: a rectangular bench surface is composed of a left bench surface, a right bench surface, and a bench surface bottom plate. The right bench surface is fixedly combined with the bench surface bottom plate. Two hinges are screwed on both sides of the lower right end of the left bench surface to be movably connected with the bench surface bottom plate. By lifting the left end of the left bench surface, it can be turned up and down at will.

[0006] A short square tube with a cross plate is vertically downwardly arranged in the middle of the lower right side of the stool bottom plate. The wing plate of the short square tube with a cross plate is provided with several screw holes. The tube is fixed to the lower side of the stool bottom plate by several screws through the screw holes. The left corner of the lower end is in an arc shape, and a through round hole is opened in the lower middle part. A square tube stool leg is set, which is put on the outside of the short square tube with a cross plate from bottom to top. The right side wall of the upper part of the square tube stool leg is cut off and is open to the right. A through hole groove is opened in the middle of the upper part. The lower end is vertically fixedly connected to the middle part of a longitudinal round tube. The two ends of the round tube are covered with short plastic (rubber) sleeves, which are connected to the ground to support the right side of the stool bottom plate. A bolt passes through the hole groove on the square tube stool leg and the round hole on the short square tube with a cross plate. The other end is fixed with a nut and a spring pin, so that the square tube stool leg is movably connected to the short square tube with a cross plate. Lift the right side of the stool bottom plate, pull the lower tube stool leg and turn it to the right, and the square tube stool leg can be folded to the right horizontal plane. At the two ends on the same vertical line below the left side of the stool bottom plate, a rectangular plate short square tube is respectively arranged vertically downward, and a plurality of screw holes are respectively arranged on the wing plates of the rectangular plate short square tube, which are fixed to the bottom of the stool bottom plate by a plurality of screws passing through the screw holes. The left corner of the lower end is arc-shaped, and a through circular hole is opened in the lower middle part. Two square tube stool legs are respectively sleeved on the outside of the two rectangular plate short square tubes from bottom to top, and the right side wall of the upper part of the square tube stool leg is cut off, and is open to the right, and a through hole groove is opened in the middle of the upper part. The lower ends of the two square tube stool legs are respectively vertically fixed to the two sides of a longitudinal round tube, and the two ends of the round tube are sleeved with short plastic (rubber) sleeves, which are connected to the ground to support the left part of the stool bottom plate. Two bolts respectively pass through the hole grooves on the two square tube stool legs and the circular holes on the two rectangular plate short square tubes, and the other ends are respectively fixed with a nut and a spring pin, so that the square tube stool legs are movably connected with the rectangular plate short square tube. Lift the left side of the stool bottom plate, pull down the two square tube legs simultaneously and turn right, then the square tube legs can be folded to the horizontal plane on the right.

[0007] Two parallel rectangular tubes are longitudinally arranged below the left side of the stool bottom plate. Several screws are passed through several screw holes on the rectangular tubes to fix the rectangular tubes below the stool bottom plate. A through circular hole is horizontally arranged in the middle of the two rectangular tubes. A hydraulic telescopic rod with an L-shaped piston rod is provided, which is composed of a protruding rod, a cylinder body, a gear adjustment chuck, and an L-shaped piston rod from right to left. The protruding rod and the top of the L-shaped piston rod are both provided with a section of thread. The above-mentioned hydraulic telescopic rod passes horizontally through the circular hole in the middle of the two rectangular tubes from left to right, and is fixed at the position of the protruding rod with a nut to form a vertical fixed connection with the right rectangular tube. A longitudinal leg kicking rod is provided, and a through circular hole is provided in the middle of the rod. The upper end of the L-shaped piston rod vertically passes through the hole and is fixed with a nut on the top. The gear adjustment chuck of the above-mentioned hydraulic telescopic rod with an L-shaped piston rod is provided with several gears. By rotating the plate to change gears, the leg kicking resistance value of the above-mentioned leg kicking rod can be adjusted arbitrarily.

[0008] A short sleeve A is sleeved on each side of the middle of the leg kick rod. Several round holes are arranged on the same circumference in the middle of the short sleeve A. A spring thimble is inlaid upwards at the corresponding position of the leg kick rod and the circumference of the round holes on the two short sleeves A. The spring thimble pops out from any of the round holes to determine the position of the short sleeve A. The right ends of the two horizontally parallel outer square tubes are respectively connected vertically and fixedly to the middle of a short sleeve A. A foot hook rod is arranged parallel to the left side of the leg kick rod. The outer surface of the two sides of the foot hook rod is wrapped with a sponge (rubber) sleeve. Two short sleeves B are arranged at the corresponding position of the short sleeve A on the foot hook rod. The left ends of the two horizontally parallel inner square tubes are respectively connected vertically and fixedly to the middle of a short sleeve B. The right ends of the two inner square tubes are simultaneously inserted from the left ports of the two outer square tubes to form a movable match. A plurality of through circular holes are arranged horizontally and upwardly at the corresponding positions of the outer square tubes and the inner square tubes. A bolt can be installed on any of the circular holes, and the other end is fixedly connected to the outer square tube and the inner square tube with a nut. Pull out the bolt, slide the two inner square tubes to the left, and then install the bolt and nut on the other circular holes. The distance between the leg-pushing rod and the foot-hooking rod can be adjusted to meet the requirements of the foot-hooking sit-ups for people with different leg lengths. Press the spring ejector pins on the two A short sleeves, and swing the outer square tube, the inner square tube, and the foot-hooking rod part upward or downward as a whole, so that the spring ejector pins pop out from other circular holes on the same circumference. The angle between the foot-hooking rod and the leg-pushing rod can be adjusted to facilitate the selection of a more suitable angle for foot-hooking and the foot-hooking sit-ups.

[0009] A hydraulic telescopic rod with a cylindrical T-shaped sleeve is composed of a cylindrical T-shaped sleeve, a cylinder body, a gear-adjusting chuck, and a piston rod from left to right. The left side of the cylindrical T-shaped sleeve is sleeved on the middle part of the hook rod, and the right end of the piston rod is vertically connected to the middle part of a hand pull rod. The gear-adjusting chuck of the hydraulic telescopic rod with a cylindrical T-shaped sleeve is provided with a plurality of gears. By rotating the disc to change gears, the pulling resistance value of the hand pull rod can be adjusted arbitrarily.

[0010] An elliptical flat tube is longitudinally placed under the right side of the stool bottom plate, and is fixed under the stool bottom plate by several screws passing through several screw holes on the elliptical flat tube. A pipe sleeve is installed at each end of the elliptical flat tube, and the inner side of the pipe sleeve is a hollow body, and the outer side is a solid body. A through circular hole is longitudinally provided in the middle of the solid body of the pipe sleeve at both ends, and a thread is provided in the circular hole. Two hydraulic telescopic rods with ball screws are provided, which are composed of a ball screw, a cylinder body, a shift chuck, and a piston rod from bottom to top, and a section of thread is provided on the top of the piston rod. The ball screw of the hydraulic telescopic rod is screwed from top to bottom into the circular holes on the solid body of the pipe sleeve at both ends of the elliptical flat tube to form a vertical connection. A spring ejector is installed on the circular arc on the front of both sides of the elliptical flat tube, and a circular hole is provided on the positive side of the hollow body of the pipe sleeve at the corresponding position, and the spring ejector pops out from the hole to fix the hydraulic telescopic rod to stand vertically upward. A push rod is cylindrical, with ring sleeves at both ends. The middle of the push rod is disconnected, so that the push rod can be separated from the middle and pushed forward or backward at will. There is a sleeve in the middle of the push rod, which is movably connected to the push rod that is disconnected in the middle. The outer surface of the sleeve is wrapped with a sponge (rubber) sleeve. A spring top bead is installed on the left side of the sleeve on the push rod to determine the position of the sleeve in the middle. After the sleeve passes over the spring top bead to the left, the top force of the spring top bead can prevent the sleeve from sliding on the push rod at will. The ring sleeves at both ends of the push rod are installed on the top of the above-mentioned piston rod and fixed with nuts. The above-mentioned hydraulic telescopic rod gear adjustment chuck with ball screw is provided with a plurality of gears. By rotating the disc to change gears, the push resistance value of the above-mentioned push rod can be arbitrarily adjusted. Before installing the push rod, the height of the push rod can be arbitrarily adjusted by rotating the ball screws on the above-mentioned two hydraulic telescopic rods to meet the needs of supine press for people with different chest thickness. By pressing the two spring ejectors, the hydraulic telescopic rod together with the push rod can be flipped rightward from a vertical position and folded onto the right bench surface.

[0011] At the same time, one end of a set of tension bands (springs) can be connected to the middle part of a pull rod to replace the aforementioned hydraulic telescopic rod with a cylindrical T-shaped sleeve (cylindrical T-shaped sleeve, cylinder body, gear shift chuck, piston rod) and pull rod, and the other end of this set of tension bands (springs) can be wrapped around the middle part of the aforementioned hook rod to form a movably connected connection. The pulling resistance value can be arbitrarily adjusted by increasing or decreasing the number of the above-mentioned tension bands (springs).

[0012] In the middle layer of the left bench, there is an induction sounder, which can selectively send out various exercise methods, basic essentials, precautions, exercise rhythm, encouragement and other prompt sounds for different subjects according to the needs under the remote control or human body induction.

[0013] The present invention can perform the following multiple types of fitness exercises, one is rowing exercise, that is, a person sits flat on the middle of a rectangular bench surface, with his back against a push-up bar or the turned-up left bench surface, with his soles placed on the leg-pushing bar, holding both sides of the hand-pulling bar with both hands, and exerting force to pull and push the legs at the same time; the second is bent-arm push-up exercise, that is, the push-up bar is separated, the person lies on his back on the rectangular bench surface and then closes it, and pushes up with his hands on the push-up bar; the third is sit-up exercise, that is, the push-up bar is separated, the person lies on his back on the rectangular bench surface, with his knees bent and placed on the leg-pushing bar, with his instep hooked on the foot-hooking bar and the body tilted up; the fourth is chamfered sit-up exercise, that is, the right square tube bench leg is pulled down and folded to the right, the right bench surface is laid down, and the push-up bar is placed on the bench surface; Separate, the person lies on his back obliquely on the rectangular bench surface, bends his knees and places them on the leg-pressing bar, hooks his insteps on the foot-hooking bar and lifts his body up; the fifth is the leg-pressing exercise, that is, the person sits flat on the middle of the rectangular bench surface, leans his back against the push-up bar, places the soles of his feet on the leg-pressing bar and pushes forward; the sixth is the chamfered leg-pressing exercise, that is, pulls the right square tube bench leg down and folds it to the right, puts the right bench surface down, and the person lies on his back obliquely on the upturned left bench surface, places the soles of his feet on the leg-pressing bar and pushes forward; the seventh is the upturning exercise, that is, the person sits flat on the middle of the rectangular bench surface with his legs crossed, holds the push-up bar with his palms facing up and flips it up; the eighth is the lifting exercise, that is, the person sits flat on the middle of the rectangular bench surface with his legs crossed, holds the push-up bar with his palms facing down and lifts it up.

[0014] The beneficial effect of the present invention is that it is helpful to break the monopoly of developed countries in Europe and America in the development of new fitness equipment products. It has a relatively complete function, can implement the above-mentioned various forms of fitness exercises, can do a relatively systematic exercise on many parts of the body, and can arbitrarily adjust the intensity of exercise through the multiple gears of the gear adjustment chuck on the aforementioned hydraulic telescopic rods, and measure the basic value of the force it generates and the specific value of the force increased after a period of exercise. It has the advantages of simple structure, low cost, beautiful appearance, safety and lightness, no noise when in use, easy to disassemble and assemble, retract and release freely, save space, easy to transport, and easy to promote and popularize. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 , Figure 4 is the front view of the present invention, Figure 2 , Figure 5 is a top view, Figure 3 It is the left view.

[0017] In the figure, 1. right stool surface, 2. stool surface bottom plate, 3. left stool surface, 4. hinge, 5. square tube stool leg, 6. round tube, 7. plastic (rubber) short sleeve, 8. hole groove, 9. cross plate short square tube, 10. screw hole, 11. screw, 12. round hole, 13. bolt, 14. nut, 15. spring pin, 16. square tube stool leg, 17. round tube, 18. plastic (rubber) short sleeve, 19. hole groove, 20. rectangular plate short square tube, 21. screw hole, 22. screw, 23. round hole, 24. bolt, 25. nut, 26. spring pin, 27. rectangular tube, 28. screw, 29. rectangular tube, 30. screw, 31. protruding rod, 32. cylinder body, 33. shift chuck, 34. L-shaped piston rod, 35. screw Cap, 36. Nut, 37. Spring thimble, 38. Leg lever, 39. A short sleeve, 40. Round hole, 41. External square tube, 42. Internal square tube, 43. B short sleeve, 44. Bolt, 45. Hook rod, 46. Sponge (rubber) sleeve, 47. Cylindrical T-shaped sleeve, 48. Cylinder body, 49. Shift chuck, 50. Piston rod, 51. Hand lever, 52. Oval flat tube, 53. Screw, 54. Sleeve, 55. Spring thimble, 56. Ball screw, 57. Cylinder body, 58. Shift chuck, 59. Piston rod, 60. Push rod, 61. Nut, 62. Sleeve, 63. Sponge (rubber) sleeve, 64. Spring thimble, 65. Tension belt (spring), 66. Hand lever, 67. Induction sounder. DETAILED DESCRIPTION

[0018] exist Figure 1 , 2 In , 3, the rectangular bench surface is composed of a right bench surface (1), a bench surface bottom plate (2), and a left bench surface (3). The right bench surface (1) and the bench surface bottom plate (2) are fixedly connected, and the lower right end of the left bench surface (3) is movably connected to the bench surface bottom plate (2) by a hinge (4).

[0019] A cross plate short square tube (9) is fixed to the lower right middle part of the stool bottom plate (2) by means of a screw (11) passing through a screw hole (10); a square tube stool leg (5) is sleeved on the cross plate short square tube (9); the lower end of the square tube stool leg (5) is fixedly connected to a round tube (6); both ends of the round tube (6) are sleeved with a plastic (rubber) short sleeve (7); a bolt (13) passes through a hole groove (8) on the square tube stool leg (5) and a round hole (12) on the cross plate short square tube (9), and is fixed by a nut (14) and a spring pin (15). Two rectangular plate short square tubes (20) are fixed to the lower left of the stool bottom plate (2) by screws (22) passing through screw holes (21); two square tube stool legs (16) are respectively sleeved on the two rectangular plate short square tubes (20); the lower ends of the two square tube stool legs (16) are respectively fixedly connected to the two sides of the round tube (17); the two ends of the round tube (17) are sleeved with plastic (rubber) short sleeves (18); bolts (24) pass through the hole grooves (19) on the square tube stool legs (16) and the round holes (23) on the rectangular plate short square tubes (20), and are fixed by nuts (25) and spring pins (26).

[0020] A rectangular tube (27) and a rectangular tube (29) are arranged below the left side of the stool bottom plate (2). The rectangular tube (27) is fixed to the bottom of the stool bottom plate (2) by a screw (28), and the rectangular tube (29) is fixed to the bottom of the stool bottom plate (2) by a screw (30). A hydraulic telescopic rod (protruding rod portion (31), cylinder body (32), shift adjustment chuck (33), L-shaped piston rod (34)) with an L-shaped piston rod passes through the circular holes in the middle of the rectangular tube (27) and the rectangular tube (29) from left to right, and is fixed by a nut (35) at the protruding rod portion (31). The upper end of the L-shaped piston rod (34) passes through the circular hole in the middle of the leg kicking rod (38) and is fixed by a nut (36). A spring ejector pin (37) is inlaid on both sides of the middle of the leg-pushing rod (38), and a short sleeve (39) is arranged on both sides of the connection between the leg-pushing rod (38) and the L-shaped piston rod (34). The two spring ejectors (37) pop out from the round hole (40) to determine the position of the short sleeve (39). The right end of the outer square tube (41) is fixedly connected to the short sleeve (39) on the leg-pushing rod (38). The hooking foot rod (45) is parallel to the left side of the leg kicking rod (38), and the outer surfaces of the two sides of the hooking foot rod (45) are each wrapped with a sponge (rubber) sleeve (46). The left end of the inner square tube (42) is fixedly connected to the B short sleeve (43) on the hooking foot rod (45), and the outer square tube (41) is sleeved with the inner square tube (42) and fixed by bolts (44). The bolts (44) are pulled out and the inner square tube (42) is slid to the left, and then the bolts (44) are installed in other round holes, so that the spacing between the leg kicking rod (38) and the hooking foot rod (45) can be adjusted. Press the spring ejector pins (37) on the two A short sleeves (39), and the outer square tube (41), the inner square tube (42), and the hooking foot rod (45) are swung upward or downward as a whole, so that the spring ejector pins (37) pop out from other round holes on the same circumference, and the angle between the hooking foot rod (45) and the leg kicking rod (38) can be adjusted.

[0021] A hydraulic telescopic rod with a cylindrical T-shaped sleeve (a cylindrical T-shaped sleeve (47), a cylinder body (48), a gear adjustment chuck (49), and a piston rod (50)), wherein the left side of the cylindrical T-shaped sleeve (47) is sleeved on the middle part of the hook rod (45), and the right end of the piston rod (50) is vertically connected to the middle part of a hand pull rod (51).

[0022] An elliptical flat tube (52) is fixed under the stool bottom plate (2) by screws (53), two pipe sleeves (54) are sleeved on both sides of the elliptical flat tube (52) and fixed by spring pins (55) on both sides, and the ball screws (56) on two hydraulic telescopic rods with ball screws (ball screws (56), cylinder body (57), gear adjustment chuck (58), piston rod (59)) are screwed into the round holes on the pipe sleeves (54) on both sides from top to bottom. A sleeve (62) is installed in the middle of a push rod (60), and the outer surface of the sleeve (62) is wrapped with a sponge (rubber) sleeve (63). A spring pin (64) is installed on the left side of the sleeve (62). The ring sleeves on both sides of the push rod (60) are sleeved on the piston rod (59) and fixed by nuts (61).

[0023] The left end of the left bench surface (3) is turned upward from the C position to the D position and leaned against the push rod (60). The person sits and leans against the left bench surface (3) in the D position, places the soles of the feet on the leg-pushing rod (38), pulls the hand pull rod (51), and exerts force at the same time to perform rowing exercise.

[0024] Pull down the square tube stool leg (5) on the right side of the stool bottom plate (2), turn it to the right and fold it to the horizontal plane, and then put the right end of the stool bottom plate (2) down to touch the ground, so as to form a triangle with the left stool surface (3) high and the right stool surface (1) low, so that people can lie on it and do sit-ups with their legs hooked.

[0025] Pull down the square tube stool leg (5) on the right side of the stool bottom plate (2), turn it to the right and fold it to the horizontal plane, and after the right end of the stool bottom plate (2) is laid down to touch the ground, a triangle is formed with the left stool surface (3) being high and the right stool surface (1) being low. Then, the left end of the left stool surface (3) is turned up from the C position to the D position, and a person can lie or sit on it to do the chamfered leg kicking exercise.

[0026] Press the spring ejector pin (55) to turn the two hydraulic telescopic rods with ball screws (ball screws (56), cylinders (57), shift chucks (58), piston rods (59)) together with the push rod (60) from position A to position B. Press the two spring ejector pins (37) to make them pop out from other suitable circular holes on the same circumference of the two short sleeves A, turn the hook rod (45) from position E to position F, and the hydraulic telescopic rod with cylindrical T-shaped sleeve (cylindrical T-shaped sleeve (47), cylinders (48), shift chucks (49), piston rods (50)) and hand pull rod (51) connected thereto are synchronously moved to the right and placed on the left bench surface (3). Pull down the right square tube stool leg (5), turn to the right and fold it to a horizontal plane, pull down the left square tube stool leg (16), turn to the right and fold it to a horizontal plane, so that the rectangular bench surface can be erected to the right, supported by the round tube (6) at the lower end of the right square tube stool leg (5) and the right end of the rectangular bench surface, and placed against the wall to save space. This is also convenient for packaging and transportation.

[0027] exist Figure 4 , 5 In the invention, one end of a tension belt (spring) (65) is connected to the middle of a hand lever (66), replacing a hydraulic telescopic rod (cylindrical T-shaped sleeve (47), cylinder body (48), shift chuck (49), piston rod (50)) and a hand lever (51) with a cylindrical T-shaped sleeve, and the other end is connected to the middle of a hook rod (45).

[0028] In the middle interlayer of the left stool surface (3) close to the right end, an induction sound generator (67) is housed.

Claims

1. A multifunctional fitness machine with hydraulic multi-speed adjustment of rowing leg-pressing and pushing resistance, comprising a rectangular bench surface, a hinge, a square tube bench leg, a cross plate short square tube, a rectangular plate short square tube, a round tube, a plastic short sleeve, a rectangular tube, a hydraulic telescopic rod with an L-shaped piston rod, two hydraulic telescopic rods with ball screws, a hydraulic telescopic rod with a cylindrical T-shaped sleeve, a leg-pressing rod, a short sleeve A, a short sleeve B, an outer square tube, an inner square tube, a hook rod, a sponge sleeve, a hand pull rod, a spring thimble, an elliptical flat tube, a tube sleeve, a push rod, and a spring thimble, characterized in that: A rectangular bench surface is composed of a left bench surface, a right bench surface, and a bench surface bottom plate; the right bench surface is fixedly combined with the bench surface bottom plate, and the left bench surface is movably connected to the bench surface bottom plate by screwing two hinges on the two longitudinal sides below the right end of the bench surface; a short square tube of a cross plate is vertically downwardly provided in the middle of the lower right side of the bench surface bottom plate; a square tube stool leg is provided, which is covered on the outside of the short square tube of the cross plate from bottom to top; a short square tube of a rectangular plate is vertically downwardly provided at both ends on the same straight line below the left side of the bench surface bottom plate; two square tube stool legs are provided, which are covered on the outside of the two short square tubes of the rectangular plates from bottom to top; two parallel rectangular tubes are longitudinally provided below the left side of the bench surface bottom plate, and a number of screws are passed through a number of screw holes on the rectangular tubes to fix the rectangular tubes on the bench surface. Under the bottom plate, a through circular hole is horizontally provided in the middle of the two rectangular tubes; a hydraulic telescopic rod with an L-shaped piston rod is provided, which is composed of a protruding rod, a cylinder body, a gear-adjusting chuck, and an L-shaped piston rod from right to left; a section of thread is provided on the top of the protruding rod and the L-shaped piston rod; the above-mentioned hydraulic telescopic rod with an L-shaped piston rod passes through the circular hole in the middle of the two rectangular tubes horizontally from left to right, and is fixed at the position of the protruding rod with a nut to form a vertical fixed connection with the rectangular tube on the right; a longitudinal leg-kick rod is provided, the middle of which is provided with a through circular hole, and the upper end of the L-shaped piston rod vertically passes through the circular hole on the longitudinal leg-kick rod and is fixed with a nut on it; the above-mentioned hydraulic telescopic rod with an L-shaped piston rod has a plurality of gears, which can be adjusted by rotating the gear-adjusting chuck with the L-shaped piston rod. The hydraulic telescopic rod shift chuck of the piston rod can arbitrarily adjust the leg-kicking resistance value of the above-mentioned leg-kicking rod; a short sleeve A is sleeved on each of the two sides of the middle of the leg-kicking rod, and a plurality of round holes are arranged on the same circumference in the middle of the short sleeve A, and a spring thimble is inlaid upwards at the corresponding position of the circumference of the round holes on the leg-kicking rod and the two short sleeves A; the right ends of the two transversely parallel outer square tubes are respectively vertically fixedly connected to the middle of a short sleeve A; a hook rod is parallelly arranged on the left side of the leg-kicking rod, and a sponge sleeve is wrapped on the outer surface of the two sides of the hook rod, and two short sleeves B are arranged at the corresponding position of the short sleeve A of the leg-kicking rod, and the left ends of the two transversely parallel inner square tubes are respectively vertically fixedly connected to the middle of a short sleeve B; the right ends of the two inner square tubes are simultaneously extended from the two outer square tubes The left port is inserted in a movable fit, and a number of through circular holes are provided horizontally and upwardly at the corresponding positions of the outer square tube and the inner square tube. A bolt can be installed on any of the through circular holes, and the other end is fixedly connected to the outer square tube and the inner square tube with a nut; a hydraulic telescopic rod with a cylindrical T-shaped sleeve is composed of a cylindrical T-shaped sleeve, a cylinder body, a gear shifting chuck, and a piston rod from left to right. The left side of the cylindrical T-shaped sleeve is sleeved on the middle part of the aforementioned hook rod, and the right end of the piston rod of the hydraulic telescopic rod with a cylindrical T-shaped sleeve is vertically connected to the middle part of a hand pull rod; the above-mentioned hydraulic telescopic rod gear shifting chuck with a cylindrical T-shaped sleeve is provided with a number of gears, and the pulling resistance value of the above-mentioned hand pull rod can be adjusted arbitrarily by rotating the hydraulic telescopic rod gear shifting chuck with a cylindrical T-shaped sleeve.

2. The multifunctional fitness machine with hydraulic multi-speed adjustment of rowing leg press resistance according to claim 1, characterized in that: A plurality of screw holes are arranged on the wing plate of the short square tube of the cross plate, and a plurality of screws are passed through the screw holes on the short square tube of the cross plate to fix it under the bottom plate of the stool surface. The left corner edge of its lower end is arc-shaped, and a through round hole is opened in the lower middle part; the right side wall of the upper part of the square tube stool leg is cut off and is open to the right, and a through hole groove is opened in the middle of the upper part, and the lower end is vertically fixedly connected to the middle of a longitudinal round tube, and short plastic sleeves are provided at both ends of the round tube, which are connected to the ground to support the right part of the bottom plate of the stool surface; a bolt passes through the hole groove on the square tube stool leg and the round hole on the short square tube of the cross plate, and the other end is fixed with a nut and a spring pin, so that the square tube stool leg is movably connected to the short square tube of the cross plate; lift the right side of the bottom plate of the stool surface, pull the lower tube stool leg and turn it to the right, and the square tube stool leg can be folded to the right horizontal plane; on the wing plate of the short square tube of the rectangular plate The sides are respectively provided with a number of screw holes, which are fixed to the bottom plate of the stool surface by a number of screws passing through the screw holes on the short square tubes of the rectangular plate. The left corner edge of the lower end is arc-shaped, and a through round hole is opened in the lower middle part; the right side tube wall of the upper part of the square tube stool leg is cut off and is open to the right, and a through hole groove is opened in the middle of the upper part. The lower ends of the two square tube stool legs are respectively vertically fixed to the two sides of a longitudinal circular tube. The two ends of the circular tube are covered with short plastic sleeves, which are connected to the ground to support the left part of the stool surface bottom plate; two bolts respectively pass through the hole grooves on the two square tube stool legs and the round holes on the two short square tubes of the rectangular plate, and the other ends are fixed with a nut and a spring pin respectively, so that the square tube stool leg is movably connected to the short square tube of the rectangular plate; lift the left side of the stool surface bottom plate, pull down the two square tube stool legs simultaneously and turn right, and the two square tube stool legs can be folded to the right horizontal plane.

3. The multifunctional fitness machine with hydraulic multi-speed adjustment of rowing leg press resistance according to claim 1, characterized in that: An elliptical flat tube is placed longitudinally under the right side of the stool bottom plate, and is fixed under the stool bottom plate by several screws passing through several screw holes on the elliptical flat tube; a pipe sleeve is respectively installed at both ends of the elliptical flat tube, the inner side of the pipe sleeve is a hollow body, and the outer side is a solid body; a through circular hole is longitudinally provided in the middle of the solid body of the pipe sleeve at both ends, and a thread is provided in the circular hole in the middle of the solid body of the pipe sleeve; two hydraulic telescopic rods with ball screws are provided, which are composed of a ball screw, a cylinder body, a gear adjustment chuck, and a piston rod from bottom to top, and a section of thread is provided on the top of the piston rod; the ball screws of the above-mentioned two hydraulic telescopic rods with ball screws are screwed from top to bottom into the circular holes on the solid bodies of the pipe sleeves at both ends of the elliptical flat tube to form a vertical connection; a spring ejector is installed on the circular arc on the front side of both sides of the elliptical flat tube, and a circular hole is provided at the positive direction of the hollow body of the pipe sleeve and the corresponding position, and the spring ejector is connected by the positive direction of the hollow body of the pipe sleeve. The circular hole corresponding to the elliptical flat tube pops out to fix the above-mentioned two hydraulic telescopic rods with ball screws to stand vertically upward; a pushing rod is cylindrical, with ring sleeves at both ends, the middle of the pushing rod is disconnected, and a sleeve is movably connected to the middle disconnected pushing rod, and the outer surface of the sleeve is wrapped with a sponge sleeve; a spring top ball is installed on the left side of the sleeve on the pushing rod, and the ring sleeves at both ends of the pushing rod are installed on the top of the piston rod of the above-mentioned two hydraulic telescopic rods with ball screws and fixed with nuts; the above-mentioned hydraulic telescopic rod with ball screw The gear adjustment chuck is provided with a plurality of gears, and the pushing resistance value of the above-mentioned pushing rod can be adjusted arbitrarily by rotating the hydraulic telescopic rod with ball screw. By pressing the two spring ejectors, the above-mentioned two hydraulic telescopic rods with ball screws can be turned rightward together with the pushing rod from a vertical position and folded onto the right bench surface.

4. The multifunctional fitness machine with hydraulic multi-speed adjustment of rowing leg press resistance according to claim 1, characterized in that: In the middle layer on the right end of the left bench surface, there is an induction sound generator, which can selectively emit various exercise methods, basic principles, precautions, exercise rhythms, and encouraging reminder sounds for different objects according to needs under human remote control or human induction.

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