CN212235782U - Body-building apparatus - Google Patents

Abstract

The application relates to a body-building apparatus in the field of body-building apparatus, which comprises a base fixed on the ground, wherein two supporting beams are vertically arranged above the base, a bracket for lifting a human body is hinged to the same side of the two supporting beams, and a counterweight mechanism is arranged on the bracket along the direction far away from the hinging direction of the bracket and the supporting beams; the counterweight mechanism comprises a slide rail which is fixed on the bracket and arranged along the direction far away from the hinging direction of the bracket and the supporting beam, a counterweight block is arranged on the slide rail, a slide block which is connected with the slide rail in a sliding way is fixedly connected on the counterweight block, and a limiting mechanism for limiting the sliding position of the slide block on the slide rail is arranged on the counterweight block. This application has the effect of swift adjustment heavy burden weight.

Description

Body-building apparatus

Technical Field

The present application relates to the field of exercise equipment, and in particular, to an exercise equipment.

Background

The body-building apparatus is a sports apparatus used for the purpose of enabling people with body-building requirements to achieve the effects of assisting in exercising and building bodies, and has different apparatuses aiming at different effects.

In the gymnasium, when people do leg muscle training, a shoulder-carrying barbell is often used to squat with a load. However, when the weight of the barbell is adjusted by personnel, the barbell disc needs to be mounted and dismounted in a reciprocating manner, so that the operation is not easy, and the physical consumption is high.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model aims at providing a body-building apparatus, which has the advantage of quickly adjusting the weight of the load.

The application provides a fitness equipment adopts following technical scheme:

a body-building apparatus comprises a base fixed on the ground, two supporting beams are vertically arranged above the base, a bracket for lifting a human body is hinged to the same side of the two supporting beams, and a counterweight mechanism is arranged on the bracket along the direction far away from the hinging direction of the bracket and the supporting beams;

the counterweight mechanism comprises a slide rail which is fixed on the bracket and arranged along the direction far away from the hinging direction of the bracket and the supporting beam, a counterweight block is arranged on the slide rail, a slide block which is connected with the slide rail in a sliding way is fixedly connected on the counterweight block, and a limiting mechanism for limiting the sliding position of the slide block on the slide rail is arranged on the counterweight block.

By adopting the technical scheme, a person can lift the bracket through the arm when exercising, and the weight of the bracket and the weight of the counterweight mechanism are overcome, so that the aim of exercising the arm is fulfilled; the person can also carry the bracket on the shoulder, and the leg is trained by bending the leg. Along with the balancing weight removes towards the direction of keeping away from the pin joint, can make moment bigger and bigger, also make the work that human lifting bracket was done also bigger and bigger to reach the purpose of adjusting the counter weight, and the staff only needs can realize the regulation to the counter weight through the slip and the screens of balancing weight, not only need not bear the weight of balancing weight, but also the swift operation of staff of being convenient for has improved staff's operating efficiency greatly.

Preferably, a cavity is arranged in the balancing weight, the limiting mechanism comprises a limiting rod which is arranged in the cavity and connected with the balancing weight in a sliding manner towards the direction of the slide rail, the upper end and the lower end of the limiting rod penetrate through the upper inner wall and the lower inner wall of the balancing weight respectively, a limiting sheet is fixedly connected to the peripheral surface of the limiting rod and located in the cavity of the balancing weight, a compression spring is further sleeved on the limiting rod and located between the limiting sheet and the top wall of the balancing weight; the upper surface of slide rail evenly sets up a plurality of along the length direction of slide rail and holds the jack that gag lever post lower extreme inserted the card and establish.

Through adopting above-mentioned technical scheme, the staff is when sliding to the balancing weight, at first the tip lifting gag lever post that grasps the gag lever post, thereby make spacing piece towards the direction displacement of balancing weight roof, and make compression spring elastic compression, when the lower extreme of gag lever post removed the position of counterpointing with the jack, make the lower extreme of gag lever post stable inserting under compression spring's elastic action establish in the jack, thereby the mutual slip of slider and slide rail has been restricted, make bracket lifting in-process, the stable position that corresponds at the slide rail that keeps of slider.

Preferably, the base is further provided with a joist for supporting the bracket in an auxiliary manner.

Through adopting above-mentioned technical scheme, the joist plays the auxiliary stay effect to the bracket for ground has been kept away from to the part of bracket and human contact, when the human body was operated the bracket, can save the physical demands that causes the bracket lifting from the bottom, has operated the bracket as the staff moreover, because the setting of joist has also reduced the stroke of bracket return, has reduced the human potential safety hazard that directly drops and cause on ground that breaks away from with the bracket.

Preferably, two end parts of the slide rail are respectively and fixedly connected with an anti-falling sheet for limiting the slide block to be separated from the slide rail.

Through adopting above-mentioned technical scheme, the anticreep piece sets up the tip at the slide rail for even the gag lever post breaks away from each other with the jack, the slider also can not break away from the tip of slide rail, has improved the security that fitness equipment used.

Preferably, the upper end of the limiting rod is connected with an installation cap which is convenient for driving the limiting rod to slide.

Through adopting above-mentioned technical scheme, the setting of installation cap has increased the area of contact of hand directness and gag lever post to improve the operating efficiency who draws the gag lever post.

Preferably, the limiting mechanism comprises a rack fixed on the slide rail along the length direction of the slide rail, an installation cavity is formed in the slide rail, a rotating shaft is arranged in the installation cavity, a driven gear is coaxially and fixedly connected to the rotating shaft, a communicating groove used for the driven gear and the rack to be meshed with each other is formed in one side of the installation cavity, a limiting groove used for containing the rotating shaft is formed in the lower surface of the installation cavity, a supporting spring used for supporting the rotating shaft is arranged in the limiting groove, a plurality of limiting protrusions are fixedly connected to one side, facing the limiting groove, of the driven gear, a matching groove used for containing the limiting protrusions is formed in the bottom wall of the installation groove, and a driving mechanism used for driving the rotating shaft to move in the limiting groove and enabling the limiting protrusions and; when the limiting protrusion and the matching groove are mutually clamped, the driven gear and the rack keep a meshed state.

Through adopting above-mentioned technical scheme, when the balancing weight slided with the slide rail each other, can drive the intermeshing of driven gear and rack, if the staff will fix a position the balancing weight in the position of slide rail, accessible actuating mechanism pushes down the axis of rotation, thereby make supporting spring elasticity flexible, and driven gear pastes each other with the installation cavity diapire towards one side of installation cavity diapire and leans on each other, and make spacing arch on the driven gear mutually support with the cooperation groove of installation cavity diapire, thereby the free rotation of driven gear has been restricted, although driven gear has moved the one end distance when spacing arch and cooperation groove mutually support, but still keep rack and driven gear intermeshing's state, and driven gear's unable rotation has also restricted the continuous slip of slider with the slide rail.

Preferably, actuating mechanism is including rotating the live-rollers of connecting in the counterweight block, the axis of live-rollers and the axis mutually perpendicular of gag lever post, the upper end of gag lever post is contradicted constantly at the outer peripheral face of live-rollers, the outer peripheral face of live-rollers is seted up one along the axial of live-rollers and is held the tangent plane that axis of rotation upper end made supporting spring keep natural state, the one end of live-rollers is provided with and drives live-rollers pivoted drive assembly.

Through adopting above-mentioned technical scheme, when initial condition, the upper end of axis of rotation is located the tangent plane of live-rollers, and when the counter weight piece removed the position that needs are fixed, the staff drove the live-rollers rotation through drive assembly for the upper end of axis of rotation is contradicted on the outer peripheral face of live-rollers under the direction of tangent plane inner wall, thereby drives the direction displacement of rotating the spacing inslot of axial, realizes counterpointing each other of spacing arch and cooperation groove. And the live-rollers set up in the counterweight block, self has certain weight, not only can not lighten the holistic weight of counterweight block, but also has driven effect, simple structure has improved manual operation's efficiency greatly.

Preferably, the driving assembly comprises a transmission gear coaxially arranged at one end of the rotating roller and a driving gear meshed with the transmission gear, a turntable is fixedly connected to one side of the driving gear, the turntable is rotatably connected with the balancing weight, and a handle is fixedly connected to one side of the turntable, which deviates from the driving gear.

Through adopting above-mentioned technical scheme, the staff is when removing the balancing weight, and the handle is held up to the accessible supports and removes the balancing weight, then if when fixing a position balancing weight position, the handle is held up to the accessible and the carousel is driven and is rotated to through driving gear and drive gear's meshing transmission, thereby drive the live-rollers rotation, simple structure, operating efficiency is high, is convenient for maintain.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the convenience of counterweight adjustment is improved; the staff only needs to slide the counterweight block and the slide rail mutually to realize the function of adjusting the moment, thereby achieving the purpose of adjusting the counterweight and greatly improving the operating efficiency of the staff;

2. the position of the balancing weight is convenient to adjust and lock; through the grafting cooperation of gag lever post and jack, restricted the relative slip of slider with the slide rail to the fixed stability of balancing weight has been improved.

Drawings

FIG. 1 is a schematic view showing the overall construction of an exercise apparatus according to embodiment 1;

FIG. 2 is a schematic view of the structure of a contact assembly in embodiment 1;

FIG. 3 is a schematic view of the entire structure of the weight mechanism in embodiment 1;

FIG. 4 is a sectional view showing a stopper mechanism according to embodiment 1;

FIG. 5 is a schematic structural view of a weight mechanism embodying embodiment 2;

FIG. 6 is a schematic view showing the internal structure of a slider mounting chamber in embodiment 2;

FIG. 7 is a schematic view showing the positional relationship between the driving mechanism and the rotating shaft;

FIG. 8 is an enlarged detail view taken at A in FIG. 7, showing the detent structure of the driven gear and the bottom wall of the mounting cavity;

FIG. 9 is a schematic view showing the position-limiting protrusion and the position-locking relation of the fitting groove;

fig. 10 is a schematic diagram showing the internal structure of the housing.

Description of reference numerals: 11. a base; 12. a support plate; 13. a support beam; 14. supporting the oblique beam; 15. a connecting rod; 2. a bracket; 21. extending the beam; 22. lifting the beam; 3. a contact assembly; 31. a diagonal brace; 32. a shoulder supporting roller; 33. lifting the rod; 4. a support assembly; 41. a joist; 42. a rubber pad; 5. a counterweight mechanism; 51. a slide rail; 511. a jack; 52. a slider; 521. a mounting cavity; 522. a communicating groove; 523. a limiting groove; 524. a mating groove; 53. a balancing weight; 531. a housing; 532. a counterweight unit; 533. a yielding groove; 56. a chamber; 54. a handrail; 55. an anti-drop sheet; 6. a limiting mechanism; 61. a limiting rod; 62. closing the plate; 63. a limiting sheet; 64. a compression spring; 65. installing a cap; 66. a rack; 67. a rotating shaft; 68. a support spring; 69. a driven gear; 60. a limiting bulge; 7. a drive mechanism; 71. a rotating roller; 711. cutting into noodles; 8. a drive assembly; 81. a transmission gear; 82. a driving gear; 83. a turntable; 84. a handle.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings, which are all incorporated in and constitute a part of this specification.

Example 1: an exercise machine, as shown in fig. 1, comprises a base 11, wherein the base 11 is a rectangular frame; a supporting plate 12 for supporting a human body is laid on the upper surface of the base 11, and the supporting plate 12 is fixedly connected with the base 11; two supporting beams 13 are vertically and vertically arranged behind the base 11, and the supporting beams 13 are positioned on two sides of the base 11 and fixedly connected with the base 11; a bracket 2 is hinged above the two supporting beams 13 towards the front of the base 11, and a contact component 3 for contacting and supporting a human body is arranged on one side of the bracket 2 away from the supporting beams 13; a support assembly 4 fixed to the support plate 12 for supporting the bracket 2 in a horizontal state is provided below the bracket 2.

As shown in fig. 1, a supporting oblique beam 14 is disposed on the front side of each supporting beam 13 facing the base 11, one end of the supporting oblique beam 14 is fixedly connected to the supporting beam 13, and the other end of the supporting oblique beam 14 is fixedly connected to the upper surface of the base 11, so that a stable triangular supporting structure is formed among the base 11, the supporting oblique beam 14 and the supporting beam 13, and the standing stability of the supporting beam 13 is improved. Still be provided with a connecting rod 15 between two bracing pieces, the bracing piece is close to the upper end setting of a supporting beam 13, and the both ends of connecting rod 15 respectively with a supporting beam 13 fixed connection who corresponds to difficult messenger's supporting beam 13 produces and rocks, has improved the security that fitness equipment used.

As shown in fig. 1, the bracket includes two parallel extending beams 21 and a lifting beam 22 disposed at the same end of the two extending beams 21, the joints between the extending beams 21 and the lifting beam 22 are welded to each other, the end of the extending beam 21 away from the lifting beam 22 is hinged to one side of the corresponding supporting beam 13, and the hinge axis of the extending beam 21 and the supporting beam 13 is parallel to the plane of the supporting plate 12.

As shown in fig. 1, the supporting assembly 4 includes two joists 41 vertically and fixedly connected to the supporting plate 12, the joists 41 are located right below the lifting beam 22 and fixed on two sides of the supporting plate 12, and a rubber pad 42 is attached to an upper surface of each joists 41, so as to replace the direct contact between the joists 41 and the lifting beam 22, and reduce the abrasion of the joists 41 to the direct support of the lifting beam 22. Also when the lifting beam 22 is supported on the joist 41 the pallet 2 is in a horizontal position.

As shown in fig. 1 and 2, the contact assembly 3 includes two parallel inclined supporting rods 31, one end of each inclined supporting rod 31 is fixedly connected to the lifting beam 22, the other end of each inclined supporting beam extends obliquely away from the base 11, and a gap is left between the two inclined supporting rods 31; a shoulder supporting roller 32 is horizontally and fixedly connected to the end of each diagonal brace, and a lifting rod 33 is fixedly connected to the two diagonal braces 31. When doing leg exercises, the worker places the head between the two shoulder support rollers 32 and then abuts the shoulders against the lower sides of the shoulder support rollers 32, thereby lifting the lifting beam 22 and driving the extension beam 21 and the support beam 13 to be hinged to each other by bending the legs. The weight of the bracket 2 is used for bearing the human body, thereby achieving the purpose of exercise. When a person exercises the upper limbs, the two shoulder support rollers 32 are also carried on the shoulders, and then the lifting beam 22 is lifted by holding the lifting lever 33 by hand, thereby exercising the arms by the burden of the weight of the bracket 2 by the arms.

As shown in fig. 1 and 3, a weight mechanism 5 is further provided on the upper surface of each extension beam 21. The counterweight mechanism 5 comprises a slide rail 51 fixedly connected to the upper surface of the extension beam 21 along the length direction of the extension beam 21, the slide rail 51 is connected with a slide block 52 in a sliding manner, the upper surface of the slide block 52 is fixedly connected with a counterweight block 53, the counterweight block 53 is fixedly connected with a handrail 54 towards two sides of the moving direction, so that the counterweight block 53 is convenient to control to slide on the slide rail 51, and the counterweight block 53 is further provided with a limiting mechanism 6 for fixing the sliding position of the slide block 52.

As shown in fig. 4, a cylindrical chamber 56 is formed in the counterweight block 53, an axis of the chamber 56 is perpendicular to a center of the slide rail 51, and an opening is formed above the chamber 56. The limiting mechanism 6 comprises a limiting rod 61 coaxially arranged in the cavity 56, the lower end of the limiting rod 61 penetrates through the balancing weight 53 and points to the upper surface of the sliding rail 51, and the upper end of the limiting rod 61 is higher than the upper surface of the balancing weight 53; an annular sealing plate 62 is arranged above the opening of the cavity 56 of the counterweight block 53, the sealing plate 62 is fixed at the edge of the opening of the cavity 56 through a plurality of bolts, and the upper end of the limiting rod 61 penetrates through the sealing plate 62 and is connected with the sealing plate 62 in a sliding manner; the circumferential surface of the limiting rod 61 is also coaxially and fixedly connected with an annular limiting sheet 63, and the limiting sheet 63 is positioned in the cavity 56; the limiting rod 61 is also sleeved with a compression spring 64, the upper end of the compression spring 64 is abutted against the lower surface of the sealing plate 62, and the lower end of the compression spring 64 is abutted against the upper surface of the limiting rod 61; and a plurality of insertion holes 511 for accommodating the lower end of the limiting rod 61 to be inserted are uniformly formed in the upper surface of the slide rail 51 along the length direction of the slide rail 51.

The upper end of the limiting rod 61 is further connected with an installation cap 65 through threads, and the longitudinal section of the installation cap 65 is T-shaped, so that the holding area of hands and the limiting rod 61 is increased, and the convenience in operation of the limiting rod 61 is improved. When the staff needs to adjust the counterweight, the staff can move the counterweight block 53 to the direction in which the extension beam 21 is hinged with the supporting beam 13, so that the gravity center of the counterweight block 53 is close to the supporting beam 13, the moment is small, and the burden of lifting the lifting beam 22 by the staff is relatively small; the staff also can move balancing weight 53 to the direction of lifting beam 22 to make balancing weight 53's center be close to personnel one side, thereby increased moment, make the staff still need overcome the pressure that balancing weight 53 applyed when customer service bracket 2, improved the exercise effect. And personnel only need to hold the gag lever post 61 and lift the gag lever post 61, drive compression spring 64 elasticity compression, and when the corresponding position that counter weight 53 removed, gag lever post 61 tightly inserted under the elastic action of compression spring 64 and was established in jack 511 to the relative slip of slider 52 and slide rail 51 has been restricted. And when bracket 2 horizontal state for the resistance that the staff slided to counter weight 53 and overcome is less, thereby has improved the convenience that counter weight 53 removed.

As shown in fig. 3, two ends of each slide rail 51 are further provided with anti-falling pieces 55, the anti-falling pieces 55 are fixed on the upper surface of the extension beam 21, and the size of the anti-falling pieces 55 is larger than the size of the cross section of the slide rail 51, so that the separation of the slide block 52 from the end of the slide rail 51 is limited, and the safety of the exercise machine in the using process is improved.

Example 2: an exercise machine is different from that of embodiment 1 in that, as shown in fig. 5 and 6, a mounting cavity 521 is formed in the upper surface of a slider 52 along the height direction of the slider 52, and the mounting cavity 521 is formed at a position on one side of a slide rail 51. The limiting mechanism 6 comprises a rack 66 fixedly connected to one side of the sliding rail 51 facing the installation cavity 521, and the length of the rack 66 is the same as that of the sliding rail 51; a communicating groove 522 which accommodates the rack 66 and is communicated with the mounting cavity 521 is formed in one side of the sliding block 52, so that the rack 66 does not interfere with the sliding block 52 when the sliding block 52 and the sliding rail 51 slide; a rotating shaft 67 is vertically arranged in the mounting cavity 521 along the height direction of the mounting cavity 521, a limiting groove 523 for accommodating the lower end part of the rotating shaft 67 is formed in the bottom surface of the mounting cavity 521, and a supporting spring 68 for supporting the rotating shaft 67 is arranged in the limiting groove 523; a driven gear 69 is coaxially fixed to the rotation shaft 67, and in an initial state, the rotation shaft 67 is supported by the support spring 68 such that the driven gear 69 is spaced from the bottom surface of the mounting chamber 521 and the driven gear 69 is engaged with the rack 66. When the slide block 52 and the slide rail 51 slide with each other, the driven gear 69 is driven to rotate freely around the axis of the rotating shaft 67 by the mutual engagement of the rack 66 and the driven gear 69.

As shown in fig. 7 and 8, six hemispherical limiting protrusions 60 are uniformly and fixedly connected to the lower surface of the driven gear 69 by using the center of the driven gear 69 as a circle center, matching grooves 524 for accommodating the limiting protrusions 60 are formed in positions corresponding to the six limiting protrusions 60 on the bottom surface of the mounting cavity 521, and a driving mechanism 7 for driving the rotating shaft 67 to move down to enable the limiting protrusions 60 to be inserted into the corresponding matching grooves 524 so as to limit the rotation of the driven gear 69 is further disposed in the counterweight block 53.

As shown in fig. 7, the weight 53 includes a housing 531 and a weight unit 532 inserted in the housing 531. The upper end of the rotating shaft 67 penetrates into the housing 531 and is slidably coupled to the housing 531. The drive mechanism 7 includes a rotating roller 71 provided in the housing 531 and rotatably connected to an inner wall of the housing 531, the rotating roller 71 being positioned directly above the rotating shaft 67 and making an upper end face of the rotating shaft 67 contact an outer peripheral surface of the rotating roller 71 at a timing, and an extension line of an axis of the rotating shaft 67 is perpendicular to and interferes with an axis of the rotating roller 71. The circumferential surface of the rotating roller 71 is formed with a cut 711 along the length direction of the rotating roller 71, so that the radius of the rotating roller 71 is reduced, and when the rotating shaft 67 is in the initial state, the upper end of the rotating shaft 67 abuts against the cut 711 area of the rotating roller 71, so that the supporting spring 68 is in a natural state.

As shown in fig. 5 and 10, one end of the rotating roller 71 is further provided with a driving assembly 8 that drives the rotating roller 71 to rotate. The driving assembly 8 comprises a transmission gear 81 coaxially and fixedly connected to one end of the rotating roller 71, a driving gear 82 meshed with the transmission gear 81 is rotatably connected to the side wall of the shell 531, which is close to the transmission gear 81, a rotating disc 83 coaxially and fixedly connected with the driving gear 82 is arranged on the outer wall of the shell 531, and the rotating disc 83 is rotatably connected with the outer wall of the shell 531; a handle 84 is further fixedly connected to one side of the rotating disc 83, which is away from the driving gear 82, so that a worker can drive the rotating disc 83 to rotate through the handle 84, and the rotating disc 71 can be rotated through the meshing transmission of the driving gear 82 and the transmission gear 81. And a yielding groove 533 is formed in the position where the lower surface of the counterweight unit 532 interferes with the rotating roller 71 and the driving assembly 8, so that after the counterweight unit 532 is inserted into the housing 531, the normal work of the driving mechanism 7 cannot be influenced, and a worker can maintain the driving mechanism 7 through the disassembly of the counterweight unit 532, thereby improving the maintenance efficiency.

As shown in fig. 8 and 9, when the worker uses the counterweight block 53, he can hold the handle 84 and drive the counterweight block 53 to slide on the slide rail 51, at this time, the driven gear 69 freely rotates in the installation cavity 521 under the mutual engagement with the rack 66, when the worker needs to fix the relative position of the slide block 52 and the slide rail 51, the worker can rotate the handle 84, drive the turntable 83 to rotate, and drive the rotating roller 71 to rotate through the mutual engagement of the driving gear 82 and the transmission gear 81. When the rotating shaft 67 is in the initial state, the upper end of the rotating shaft 67 is located at the tangent plane 711 of the rotating roller 71, and along with the rotation of the rotating roller 71, the rotating shaft 67 is displaced towards the bottom of the limiting groove 523 under the limiting of the limiting groove 523, and drives the supporting spring 68 to elastically compress, and meanwhile, the limiting protrusion 60 on the lower surface of the driven gear 69 is clamped in the corresponding matching groove 524, so that the free rotation of the driven gear 69 is limited, and at the moment, the driven gear 69 is also kept in a state of being meshed with the rack 66, and further, the relative sliding between the slider 52 and the sliding rail 51 is also limited. And the staff only need to operate the handrail 84 can realize the fixed of balancing weight 53 relative position on slide rail 51, easy operation, the effect is showing.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. An exercise machine characterized by: the lifting device comprises a base (11) fixed on the ground, wherein two supporting beams (13) are vertically arranged above the base (11), a bracket (2) used for lifting a human body is hinged to the same side of the two supporting beams (13), and a counterweight mechanism (5) is arranged on the bracket (2) in the direction away from the hinging direction of the bracket (2) and the supporting beams (13);

the counterweight mechanism (5) comprises a sliding rail (51) which is fixed on the bracket (2) and arranged along the direction far away from the hinging direction of the bracket (2) and the supporting beam (13), a counterweight block (53) is arranged on the sliding rail (51), a sliding block (52) connected with the sliding rail (51) in a sliding way is fixedly connected onto the counterweight block (53), and a limiting mechanism (6) for limiting the sliding position of the sliding block (52) on the sliding rail (51) is arranged on the counterweight block (53).

2. An exercise machine according to claim 1 wherein: a cavity (56) is arranged in the balancing weight (53), the limiting mechanism (6) comprises a limiting rod (61) which is arranged in the cavity (56) and connected with the balancing weight (53) in a sliding manner towards the direction of the sliding rail (51), the upper end and the lower end of the limiting rod (61) penetrate through the upper inner wall and the lower inner wall of the balancing weight (53) respectively, a limiting sheet (63) is fixedly connected to the peripheral surface of the limiting rod (61), the limiting sheet (63) is positioned in the cavity (56) of the balancing weight (53), a compression spring (64) is further sleeved on the limiting rod (61), and the compression spring (64) is positioned between the limiting sheet (63) and the top wall of the balancing weight (53); the upper surface of slide rail (51) is evenly seted up a plurality of along the length direction of slide rail (51) and is held gag lever post (61) lower extreme and insert jack (511) of card establishing.

3. An exercise machine according to claim 1 wherein: and the base (11) is also provided with a joist (41) for carrying out auxiliary support on the bracket (2).

4. An exercise machine according to claim 1 wherein: two ends of the slide rail (51) are respectively fixedly connected with an anti-falling sheet (55) for limiting the slide block (52) to be separated from the slide rail (51).

5. An exercise machine according to claim 2 wherein: the upper end of the limiting rod (61) is connected with an installation cap (65) which is convenient for driving the limiting rod (61) to slide.

6. An exercise machine according to claim 1 wherein: limiting mechanism (6) are including fixing rack (66) on slide rail (51) along the length direction of slide rail (51), have seted up an installation cavity (521) in slide rail (51), are provided with a axis of rotation (67) in installation cavity (521), and coaxial rigid coupling has a driven gear (69) on axis of rotation (67), a intercommunication groove (522) that is used for driven gear (69) and rack (66) intermeshing is seted up to installation cavity (521) one side, spacing groove (523) that hold axis of rotation (67) are seted up to installation cavity (521) lower surface, are provided with supporting spring (68) that support axis of rotation (67) in spacing groove (523), driven gear (69) have a plurality of spacing arch (60) towards one side rigid coupling of spacing groove (523), offer on the diapire of installation groove and are used for holding spacing arch (60) cooperation groove (524), be provided with in balancing weight (53) and drive axis of rotation (67) and remove and make the spacing inslot (523) and restrict A driving mechanism (7) which is clamped between the position bulge (60) and the matching groove (524); when the limit protrusion (60) and the matching groove (524) are mutually clamped, the driven gear (69) and the rack (66) keep a meshed state.

7. An exercise machine according to claim 6 wherein: actuating mechanism (7) are including rotating rotation roller (71) of connecting in balancing weight (53), the axis of rotation roller (71) and the axis mutually perpendicular of gag lever post (61), the outer peripheral face of conflict at rotation roller (71) constantly in the upper end of gag lever post (61), a tangent plane (711) that holds axis of rotation (67) upper end messenger supporting spring (68) and keep natural state is seted up along the axial of rotation roller (71) to the outer peripheral face of rotation roller (71), the one end of rotation roller (71) is provided with drives rotation roller (71) pivoted drive assembly (8).

8. An exercise machine according to claim 7 wherein: drive assembly (8) including coaxial setting at drive gear (81) of live-rollers (71) one end, with drive gear (81) intermeshing's driving gear (82), one side rigid coupling of driving gear (82) has a carousel (83), carousel (83) rotate with balancing weight (53) to be connected, one side rigid coupling that carousel (83) deviate from driving gear (82) has one to hold up handle (84).

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