Push-up Machine

Abstract

The present invention discloses a push-up machine, comprising a base mechanism, a gripping mechanism, and a buckle mechanism. The base mechanism comprises two bases that can pivot relative to each other around a vertical axis, the gripping mechanism comprises two grips respectively mounted on the bases, the buckle mechanism connects the bases together so that they can pivot relative to each other, and can be operated to lock the bases in a relative pivoting angle. The present invention can adjust the spacing of the grips respectively arranged on the base according to the needs of the user by adjusting the pivoting angle of the base of the base mechanism, and the base of the base mechanism can be locked in place through the buckle mechanism without relative rotation.

Description

Technical Field

[0001] The present invention relates to a training device for promoting or strengthening muscles or joints of a human body, and in particular to a push-up machine. Background Art

[0002] A conventional push-up stand comprises a base and two handles fixedly disposed on the base. The handles can be grasped by both hands to allow the user to perform push-ups. However, the positions of the handles of the push-up stand are fixed, so the distance between the handles cannot be adjusted according to the user's body shape or training intensity. Chinese patent CN203803032U discloses a push-up stand, in which the handles are connected to the base in the form of positioning grooves. Although this form has a form of adjusting the distance between the handles, the adjustment form is also limited and fixed, and the handles cannot be moved when the user performs push-ups, resulting in poor effect. Summary of the invention

[0003] Therefore, an object of the present invention is to provide a push-up machine that can overcome at least one of the disadvantages of the prior art.

[0004] Therefore, the push-up machine of the present invention comprises a base mechanism, a grip mechanism, and a buckle mechanism. The base mechanism comprises two bases that can be relatively pivoted around a vertical axis, the grip mechanism comprises two grips respectively mounted on the bases, and the buckle mechanism connects the bases together so that they can be relatively pivoted, and can be operated to lock and fix the bases at a relative pivot angle.

[0005] Preferably, each of the bases has a base body for mounting a corresponding handle and a base body connected to the front side of the base body, the base body is arranged up and down so as to rotate relative to each other around the vertical axis, the snap mechanism includes a rotating cover that can rotate downward around the vertical axis and lean against the base body above, a first elastic member that is elastically supported between the base bodies up and down, and at least one snap unit, the at least one snap unit has a first guide member and a second guide member that are respectively arranged on the rotating cover and the base body below and are engaged with each other up and down, the rotating cover can be driven to rotate and drive the first guide member to rotate relative to the second guide member, thereby driving the base body to move toward each other up and down and snap into position with each other.

[0006] Preferably, the second guide member of the at least one snap unit has a downward guiding slope inclined from top to bottom, and a downwardly facing lower positioning surface extending horizontally and connected to the bottom end of the guiding slope. The first guide member is upwardly abutted against the second guide member and can be moved downwardly along the guiding slope to the lower positioning surface by the rotating cover.

[0007] Preferably, the second guide member of the at least one buckle unit further has a downwardly facing upper positioning surface horizontally connected to the top end of the guiding inclined surface and for the first guide member to lean against upward.

[0008] Preferably, the two upper and lower facing sides of the base body are provided with a plurality of meshing teeth arranged and distributed around the vertical axis. When the base body is driven by the buckle mechanism to move upward and downward, the meshing teeth will engage with each other and be unable to rotate relative to each other.

[0009] Preferably, each of the handles has a chassis that can be slidably installed on the corresponding base body along the length of the base body, a handle body that is arranged on the chassis and can be grasped to drive the chassis to move relative to the base body, and a locking unit that is installed on the handle body and exposed to the chassis and can be operated to be disengaged and locked in the base body. The locking unit can be driven to switch between an unfastened state that allows the handle to slide relative to the base body and an engaged state that allows the handle to be locked and positioned relative to the base body.

[0010] Preferably, each of the seat bodies has two positioning portions arranged laterally and extending along its length, each engaging unit has an operating member installed on the corresponding handle body and extending to the chassis for vertical displacement, a transmission block connected to the lower end of the operating member, and two driven blocks that can be laterally displaced and arranged at intervals to the left and right, exposed on the bottom side of the chassis and abutting against the transmission block, the driven blocks can be driven to be laterally engaged in the corresponding positioning portions of the seat body, the operating member can be operated to move up and down to drive the transmission block to drive the driven block to switch between the disengaged state in which it is laterally disengaged from the positioning portion and the engaged state in which it is laterally engaged with the positioning portion.

[0011] Preferably, each of the positioning portions has a plurality of teeth grooves spaced apart along its length, and each transmission block of each engaging unit is respectively provided with a first transmission surface extending obliquely upward from its left side to its right side and facing upward, and a second transmission surface extending obliquely downward from its left side to its right side and facing upward on the front and rear sides, each driven block has an engaging portion that can be detachably laterally engaged with one of the teeth grooves of the corresponding positioning portion, and a driven inclined surface that leans downward against the transmission block, and the first transmission surface and the second transmission surface of the transmission block respectively lean upward against the driven inclined surface of the driven block, so as to drive the driven block to move laterally.

[0012] Preferably, each of the engaging units also has two longitudinal elastic members arranged between the handle body and the operating member, and two transverse elastic members respectively arranged between the two left and right opposite side surfaces of the driven block and the chassis. The longitudinal elastic member constantly provides an elastic force for the operating member to move downward relative to the handle body, and each transverse elastic member constantly provides an elastic supporting force for the corresponding engaging portion of the driven block to engage and position itself in one of the tooth grooves of the corresponding positioning portion.

[0013] Preferably, each of the handle bodies can rotate around a vertical rotation axis relative to the corresponding chassis, and the chassis has a plurality of positioning grooves with openings facing upward and distributed at intervals around the rotation axis. Each handle also has a rotation and positioning unit installed on the handle body and detachably inserted into one of the positioning grooves to rotate and position the handle body relative to the chassis.

[0014] Preferably, each of the rotation and positioning units has a positioning bolt installed on the corresponding handle body for vertical displacement and inserted downward into one of the positioning grooves, a pin installed on the handle body for vertical displacement and laterally connected to the positioning bolt, and a sliding block for the pin to lean downward, the sliding block has an adjustment inclined surface extending vertically and for the pin to lean downward, the sliding block can be driven to shift laterally and the adjustment inclined surface can drive the pin to move upward relative to the handle body, thereby driving the positioning bolt to move upward and out of the corresponding positioning groove.

[0015] Preferably, the sliding block of each of the rotation and positioning units also has a lower limit surface extending and connected to the bottom end of the adjustment slope, and an upper limit surface extending and connected to the top end of the adjustment slope. The pin can be driven by the sliding block to move and slide upward along the guide slope to the upper limit surface, or slide downward to the lower limit surface.

[0016] Preferably, each of the rotation and positioning units further has a second elastic member disposed between the corresponding handle body and the positioning bolt, and the second elastic member constantly provides the positioning bolt with an elastic force to move downward relative to the handle body.

[0017] The effect of the present invention is that by adjusting the pivoting angle of the base of the base mechanism, the spacing of the handles respectively arranged on the base can be adjusted according to the needs of the user, and the base of the base mechanism can be locked in place through the buckle mechanism without relative rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, in which:

[0019] Figure 1 is a three-dimensional view of one embodiment of the push-up machine of the present invention;

[0020] Figure 2 is a top view of one of the embodiments, illustrating that the two bases can be pivoted relative to each other along a vertical axis;

[0021] Figure 3 is a three-dimensional exploded view of the embodiment;

[0022] Figure 4is a side sectional view of the embodiment, illustrating that a buckle mechanism can be driven to drive the two base bodies to move up and down toward each other and to be locked and positioned with each other;

[0023] Figure 5 is a three-dimensional exploded view of a handle of the embodiment;

[0024] Figure 6 is a side cross-sectional view of the embodiment, illustrating that an engaging unit can be driven to change from an engaged state to an unengaged state; and

[0025] Figure 7 It is a side sectional view of a rotation positioning unit of the embodiment, illustrating that a positioning bolt can be driven to disengage from a corresponding positioning groove.

[0026] Reference numerals

[0027] 1. Push-up Machine

[0028] 2: Base mechanism

[0029] 21: Pedestal

[0030] 22: Seat body

[0031] 20: Tooth groove

[0032] 221: Positioning Department

[0033] 23: Base body

[0034] 231: Meshing teeth

[0035] 3: Buckle mechanism

[0036] 31: Screw cap

[0037] 32: First elastic member

[0038] 33: Buckle unit

[0039] 331: First guide

[0040] 332: Second guide

[0041] 333: Lower positioning surface

[0042] 334: Guide slope

[0043] 335: Upper positioning surface

[0044] 4: Gripping mechanism

[0045] 41: Grip

[0046] 42: Chassis

[0047] 420: Positioning slot

[0048] 43: Grip body

[0049] 44: Snap-on unit

[0050] 441: Operating parts

[0051] 442: Transmission block

[0052] 443: Follower block

[0053] 444: Longitudinal elastic member

[0054] 445: Transverse elastic member

[0055] 446: First transmission surface

[0056] 447: Second transmission surface

[0057] 448: Card Embedding Department

[0058] 449: Driven ramp

[0059] 45: Turn the positioning unit

[0060] 451: Positioning bolt

[0061] 452: Latch

[0062] 453: Sliding block

[0063] 454: Second elastic member

[0064] 455: Lower limit plane

[0065] 456: Adjust and shift the slope

[0066] 457: Upper Limit Plane

[0067] L1: vertical axis

[0068] L2: rotation axis. DETAILED DESCRIPTION

[0069] See also Figures 1 to 4 An embodiment of the push-up machine 1 of the present invention includes a base mechanism 2, a buckle mechanism 3, and a gripping mechanism 4 disposed on the base mechanism 2.

[0070] The base mechanism 2 includes two bases 21 that can pivot relative to each other around a vertical axis L1. Each base 21 has a base body 22 and a base body 23 connected to the front side of the base body 22. Each base body 22 has two positioning portions 221 extending along its length, and each positioning portion 221 has a plurality of tooth grooves 20 spaced apart along its length. The base body 23 is disposed vertically and relatively rotatably around the vertical axis L1, and a plurality of meshing teeth 231 arranged and distributed around the vertical axis L1 are disposed on two upper and lower facing side surfaces of the base body 23.

[0071] The buckle mechanism 3 includes a rotary cover 31 that can rotate about the vertical axis L1 and lean downward against the base body 23 above, a first elastic member 32 that elastically supports the base body 23 from top to bottom, and four buckle units 33. Each buckle unit 33 has a first guide member 331 and a second guide member 332 that are respectively arranged on the lower side of the rotary cover 31 and the base body 23 below and connected to each other from top to bottom. The second guide member 332 is used for the first guide member 331 to lean upward, and has a lower positioning surface 333, a guiding inclined surface 334 and an upper positioning surface 335 that are connected downward. The rotary cover 31 can be driven to rotate and drive each first guide member 331 to rotate relative to the corresponding second guide member 332, and move downward from the upper positioning surface 335 along the guiding inclined surface 334 to the lower positioning surface 333, thereby driving the base body 23 to move upward and downward toward each other and be locked and positioned with each other.

[0072] See also Figures 5 to 7 The gripping mechanism 4 includes two grips 41 respectively mounted on the base 21, each grip 41 having a base 42 mounted on the base body 22, a grip body 43 disposed on the base 42 and capable of being gripped, a locking unit 44, and a rotation and positioning unit 45. The base 42 of each grip 41 can slide along the length of the base body 22 of the corresponding base 21, and the grip body 43 can rotate relative to the base 42 around a vertical rotation axis L2. The base 42 has a plurality of positioning grooves 420 spaced apart along the rotation axis L2 and opening upward.

[0073] Each engaging unit 44 has an operating member 441 mounted on the corresponding handle body 43, a transmission block 442 connected to the lower end of the operating member 441, two follower blocks 443 exposed at intervals on the bottom side of the chassis 42, two longitudinal elastic members 444, and two transverse elastic members 445. Each operating member 441 can be operated to move up and down relative to the corresponding handle body 43. Figure 3 and Figure 5The operating member 441 is in the form of a frame and is vertically disposed on the central axis of the handle body 43. A connecting rod 4411 extends from the lower side of the frame of the operating member 441. The connecting rod 4411 extends into the chassis 42. The transmission block 442 is sleeved and fixed on the connecting rod 4411. The front and rear sides of each transmission block 442 are respectively provided with a first transmission surface 446 extending upward from the left side to the right side and facing upward, and a second transmission surface 447 extending downward from the left side to the right side and facing upward. Each driven block 443 is vertically limited and laterally movable on the chassis 42, and has an engaging portion 448 that can be disengaged and laterally engaged with a plurality of tooth grooves 20 of the corresponding positioning portion 221, and a driven inclined surface 449 that leans downward against the transmission block 442. Each transmission block 442 can be driven by the corresponding operating member 441 to move up and down, and the first transmission surface 446 and the second transmission surface 447 respectively lean upward against the driven inclined surface 449 of the driven block 443 to transmit the lateral displacement of the driven block 443 .

[0074] The longitudinal elastic member 444 of each engaging unit 44 is disposed between the corresponding handle body 43 and the operating member 441, and constantly provides the operating member 441 with an elastic force to move downward relative to the handle body 43. The transverse elastic member 445 of each engaging unit 44 is respectively disposed between the two left and right opposite sides of the driven block 443 and the chassis 42, and constantly provides the corresponding transverse elastic member 445 with an elastic supporting force to engage and position the corresponding engaging portion 448 of the driven block 443 with the corresponding plurality of tooth grooves 20 of the positioning portion 221.

[0075] Each engaging unit 44 can be driven to switch between an unlocked state in which the handle 41 can slide relative to the corresponding seat body 22, and an engaged state in which the handle 41 can be engaged and positioned relative to the corresponding seat body 22. In the unlocked state, the operating member 441 compresses the longitudinal elastic member 444 upward, and the driven block 443 presses the transverse elastic member 445 toward each other and respectively disengages from the corresponding positioning portion 221. In the engaged state, the operating member 441 pushes the transmission block 442 downward through the elastic force of the longitudinal elastic member 444, and the driven block 443 is respectively embedded in the corresponding positioning portion 221 through the elastic supporting force of the transverse elastic member 445. See. Figure 3 and Figure 6 Each seat body 22 has a long guide groove 222, and a protrusion 421 is downwardly provided on the bottom plate of each handle 41. The protrusion 421 extends into the guide groove 222 and slides, and the distal end of the protrusion 421 has a locking piece 422, thereby limiting the displacement of the handle 41 relative to the seat body 22 along the vertical axis direction.

[0076] Each rotation and positioning unit 45 has a positioning bolt 451 disposed on the handle body 43, a latch 452 laterally connected to the upper end of the positioning bolt 451, a sliding block 453 for the latch 452 to lean downward, and a second elastic member 454. The positioning bolt 451 can be driven by the latch 452 to be detachably inserted downward into one of the positioning slots 420 of the corresponding chassis 42. The sliding block 453 can be driven to shift laterally, and has a lower limit surface 455 connected and facing upward, an adjustment slope 456, and an upper limit surface 457. The second elastic member 454 is disposed between the handle body 43 and the positioning bolt 451, and constantly provides the positioning bolt 451 with an elastic force to move downward relative to the handle body 43. See. Figure 5 and Figure 7 The driving structure of the sliding block 453 is a push button 4531 arranged on the handle. The push button 4531 has two push buttons, which are arranged at both ends of the sliding block 453.

[0077] When the relative pivot angle of the base 21 is to be adjusted by using the present embodiment, the rotary cover 31 is driven to rotate and the first guide member 331 is driven to move from the lower positioning surface 333 of the second guide member 332 along the guide slope 334 to the upper positioning surface 335, and the first elastic member 32 disposed between the base bodies 23 will assist the upper base body 23 to move upward and detach from the lower base body 23 through the elastic supporting force. At this time, the meshing teeth 231 respectively disposed on the base body 23 are separated up and down, so that the base 21 can be driven to swing along the vertical axis L1 to a desired relative pivot angle. Next, the upper base body 23 is pressed down to compress the first elastic member 32, so that the upper base body 23 can approach the lower base body 23, and the meshing teeth 231 are engaged with each other and cannot rotate relative to each other. When the two base bodies 23 are driven away from each other by the first elastic member 32, the meshing teeth 231 move away from each other and rotate freely relative to each other. The position of the rotary cover 31 is adjusted so that the position of the first guide member 331 can correspond to the upper positioning surface 335 respectively, and then the rotary cover 31 is driven in the opposite direction to drive the first guide member 331 to move downward from the upper positioning surface 335 along the guiding inclined surface 334 respectively, and finally locked and positioned on the lower positioning surface 333, so that the base 21 is fixed at the relative pivot angle and cannot rotate relative to each other.

[0078] When the operating member 441 is not driven, the engaging unit 44 is in the engaging state, so the handle 41 is fixed to the base 21, so the user can grasp the handle body 43 with both hands to do push-ups. The user can also press the operating member 441 upward to change the engaging unit 44 from the engaging state to the disengaged state, so the user can grasp and drive the handle 41 to slide along the base body 22 while doing push-ups. When the push-up posture of the user is at the high point, the handle 41 slides to the minimum relative distance, which can stimulate the user's chest muscles to exert force inward, and train the inner chest muscles and the middle chest muscles to achieve the purpose of training the middle seam of the chest muscles. When the push-up posture is at the low point, the handle 41 slides to the maximum relative distance, which can stimulate the chest muscles to expand outward and exert force, and train the middle chest muscles and the lower chest muscles.

[0079] The user can also move the sliding block 453 to make the latch 452 slide from the lower limit surface 455 along the adjustment inclined surface 456, and finally abut against the upper limit surface 457 to be positioned, thereby driving the positioning bolt 451 to disengage from the positioning groove 420, thereby driving the handle body 43 to rotate relative to the chassis 42. The user can adjust the handle body 43 to a more comfortable gripping angle, and then move the sliding block 453 in the opposite direction to make the latch 452 slide and abut against the lower limit surface 455, and link the positioning bolt 451 to be inserted downward and fixed in the positioning groove 420, so that the handle body 43 will not rotate relative to the chassis 42.

[0080] The number of the buckle units 33 in this embodiment is four, but in practice, in other embodiments of the present invention, the number of the buckle units 33 may also be one, two, three or more than five.

[0081] The buckle unit 33 of the present embodiment is buckled in place by the first guide member 331 pressing upward against the second guide member 332 respectively. However, in practice, in other embodiments of the present invention, the first guide member 331 and the second guide member 332 may also be threads, and the buckle unit 33 is locked in place by screwing the first guide member 331 and the second guide member 332 up and down.

[0082] In summary, the arrangement of the base mechanism 2 and the buckle mechanism 3 allows the user to adjust and fix the relative pivot angle of the base 21 according to needs, and adjust the spacing of the handles 41 respectively arranged on the base 21. In addition, with the arrangement of the locking unit 44, the handle 41 can be controlled to slide horizontally relative to the base 21, thereby enhancing the training intensity of a specific area and improving the training effect of the chest muscles. On the other hand, the arrangement of the rotation and positioning unit 45 allows the user to adjust the grip angle of the handle 41 to enhance the comfort of use.

[0083] However, what is described above is only an embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope covered by the patent of the present invention.

Claims

1. A push-up machine, characterized in that: Include: A base mechanism including two bases pivotable relative to each other about a vertical axis; a gripping mechanism, comprising two gripping handles respectively mounted on the two bases; and A buckle mechanism connects the two bases together so that they can pivot relative to each other, and can be operated to lock and fix the bases at a relative pivot angle; Each of the bases has a base body for mounting a corresponding handle and a base body connected to the front side of the base body, the base bodies of the two bases are coaxially arranged up and down and can rotate relative to each other around the vertical axis; and the two bases have the ability to move up and down towards each other and be fixed to each other by the buckle mechanism; The buckle mechanism includes a rotating cover that can rotate around the vertical axis and lean downward against the base body located above, a first elastic member that elastically supports the two base bodies up and down, and at least one buckle unit. The at least one buckle unit includes a first guide member arranged on the rotating cover and a second guide member of the base body located below. The first guide member and the second guide member can be engaged with each other up and down. The rotating cover can be driven to rotate and drive the first guide member to rotate relative to the second guide member, and the base body located above is driven to overcome the elastic force of the first elastic member and move toward the base body located below so that the two are locked and positioned with each other.

2. The push-up machine according to claim 1, characterized in that: The second guide member has a downwardly inclined guide slope and a downwardly extending lower positioning surface connected to the bottom end of the guide slope. The first guide member leans against the second guide member upward and can be moved downwardly along the guide slope to the lower positioning surface by the rotating cover.

3. The push-up machine according to claim 2, characterized in that: The second guide member also has a downwardly facing upper positioning surface which is horizontally connected to the top end of the guide slope and against which the first guide member leans upward.

4. The push-up machine according to any one of claims 1 to 3, characterized in that: The upper and lower facing sides of the two base bodies are provided with a plurality of meshing teeth arranged and distributed around the vertical axis. When the two base bodies are driven by the snap mechanism to move upward and downward toward each other, the meshing teeth will engage with each other up and down and cannot rotate relative to each other. When the two base bodies are driven by the first elastic member to move away from each other, the meshing teeth will move away from each other and can rotate freely relative to each other.

5. The push-up machine according to claim 1, wherein: Each of the handles has a chassis that can be slidably mounted on the corresponding seat body along the length of the seat body, a handle body that is arranged on the chassis and can be grasped to drive the chassis to move relative to the seat body, and a locking unit that is mounted on the handle body and exposed on the chassis and can be operated to be disengaged and locked in the seat body. The locking unit can be driven to switch between an unlocked state that allows the handle to slide relative to the seat body and an engaged state that allows the handle to be locked and positioned relative to the seat body.

6. The push-up machine according to claim 5, characterized in that: Each of the seat bodies has two positioning parts arranged along its transverse direction and extending along its longitudinal direction. Each engaging unit includes at least left and right spaced apart driven blocks exposed on the bottom side of the chassis and capable of laterally displacement. The driven blocks can be driven to be laterally engaged with the corresponding positioning parts of the seat body.

7. The push-up machine according to claim 6, characterized in that: Each of the engaging units also has an operating member that is installed on the corresponding handle body and extends to the chassis so as to be operable to move up and down, and a transmission block connected to the lower end of the operating member. The operating member can be operated to move up and down to drive the transmission block and then transmit the driven block to transform between the disengaged state in which it is laterally separated from the positioning part and the engaged state in which it is laterally embedded in the positioning part.

8. The push-up machine according to claim 7, characterized in that: Each of the positioning portions has a plurality of tooth grooves spaced apart along its length, and each transmission block of each engaging unit is provided with a first transmission surface extending upward from its left side surface to its right side surface obliquely, and a second transmission surface extending upward from its left side surface to its right side surface obliquely, respectively, on its front and rear sides, each driven block has an engaging portion which is detachably engaged with one of the tooth grooves of the corresponding positioning portion, and a driven inclined surface which is pressed downward against the transmission block, and the first transmission surface and the second transmission surface of the transmission block are respectively pressed upward against the driven inclined surface of the driven block, so as to drive the driven block to move laterally.

9. The push-up machine according to claim 8, characterized in that: The operating member is in the form of a frame and is vertically arranged on the central axis of the handle body. A connecting rod extends from the lower side of the frame of the operating member and extends into the chassis. The transmission block is sleeved and fixed on the connecting rod.

10. The push-up machine according to claim 9, characterized in that: Each of the engaging units also has two longitudinal elastic members arranged between the handle body and the operating member, and two transverse elastic members respectively arranged between the two left and right opposite side surfaces of the driven block and the chassis. The longitudinal elastic member constantly provides an elastic force for the operating member to move downward relative to the handle body, and each transverse elastic member constantly provides an elastic supporting force for the corresponding engaging portion of the driven block to engage and position itself in one of the tooth grooves of the corresponding positioning portion.

11. The push-up machine according to claim 10, characterized in that: Each of the seat bodies has a longitudinal guide groove, and a protrusion is downwardly provided on the bottom plate of each of the handles. The protrusion extends into the guide groove to slide and has a locking piece at its distal end to limit the displacement of the handle relative to the seat body along the vertical axis.

12. The push-up machine according to claim 5, characterized in that: Each of the handle bodies can rotate around a vertical rotation axis relative to the corresponding chassis, and the chassis has a plurality of positioning grooves with openings facing upward and spaced around the rotation axis. Each handle also has a rotation positioning unit installed on the handle body and can be selectively inserted into one of the positioning grooves to allow the handle body to be rotated and fixed relative to the chassis.

13. The push-up machine according to claim 12, wherein: Each of the rotation and positioning units has a positioning bolt installed on the corresponding handle body for vertical displacement and inserted downward into one of the positioning grooves, a latch laterally connected to the positioning bolt and installed on the handle body for vertical displacement, and a sliding block for the latch to lean downward, the sliding block has an adjustment inclined surface extending vertically and for the latch to lean downward, the sliding block can be driven to shift laterally and the adjustment inclined surface drives the latch to move upward relative to the handle body, thereby driving the positioning bolt to move upward and out of the corresponding positioning groove.

14. The push-up machine according to claim 13, wherein: The sliding block of each of the rotation and positioning units also has a lower limit surface extending and connected to the bottom end of the adjustment slope, and an upper limit surface extending and connected to the top end of the adjustment slope. The pin can be driven by the sliding block to move upward along the guide slope to the upper limit surface, or slide downward to the lower limit surface.

15. The push-up machine according to claim 14, wherein: The driving structure of the sliding block is a push button arranged on the handle, and the push button has two push buttons which are arranged at both ends of the sliding block.

16. The push-up machine according to claim 15, characterized in that: Each of the rotation and positioning units also has a second elastic member disposed between the corresponding handle body and the positioning bolt, and the second elastic member constantly provides the positioning bolt with an elastic force to move downward relative to the handle body.

17. A push-up machine, characterized in that: Include: A base mechanism including two bases pivotable relative to each other about a vertical axis; a gripping mechanism, comprising two gripping handles respectively mounted on the two bases; and A buckle mechanism connects the two bases together so that they can pivot relative to each other, and can be operated to lock and fix the bases at a relative pivot angle; and A snap-fit ​​unit mounted on the handle and operable to be disengaged and locked in the base, the snap-fit ​​unit being drivable to switch between an unlocked state in which the handle can slide relative to the base body and an engaged state in which the handle can be locked and positioned relative to the base body; Each of the bases has a base body for mounting a corresponding handle and a base body connected to the front side of the base body, the base bodies of the two bases are coaxially arranged up and down and can rotate relative to each other around the vertical axis; and the two bases have the ability to move up and down towards each other and be fixed to each other by the buckle mechanism; The buckle mechanism includes a rotating cover that can rotate around the vertical axis and lean downward against the base body located above, a first elastic member that elastically supports the two base bodies up and down, and at least one buckle unit. The at least one buckle unit includes a first guide member arranged on the rotating cover and a second guide member of the base body located below. The first guide member and the second guide member can be engaged with each other up and down. The rotating cover can be driven to rotate and drive the first guide member to rotate relative to the second guide member, and the base body located above is driven to overcome the elastic force of the first elastic member and move toward the base body located below so that the two are locked and positioned with each other.

18. A push-up machine, characterized in that: Include: A base mechanism including two bases pivotable relative to each other about a vertical axis; a gripping mechanism, comprising two gripping handles respectively mounted on the two bases; and A buckle mechanism connects the two bases together so that they can pivot relative to each other, and can be operated to lock and fix the bases at a relative pivot angle; Each of the handles comprises a chassis mounted on the corresponding seat body so as to be slidable along the length direction of the seat body, and a handle body disposed on the chassis and capable of being grasped to drive the chassis to move relative to the seat body; Each of the grip bodies can rotate around a vertical rotation axis relative to the corresponding chassis, the chassis has a plurality of positioning slots with openings facing upward and spaced around the rotation axis, and each grip also has a rotation positioning unit installed on the grip body and selectively inserted into one of the positioning slots to rotate and fix the grip body relative to the chassis; Each of the bases has a base body for mounting a corresponding handle and a base body connected to the front side of the base body, the base bodies of the two bases are coaxially arranged up and down and can rotate relative to each other around the vertical axis; and the two bases have the ability to move up and down towards each other and be fixed to each other by the buckle mechanism; The buckle mechanism includes a rotating cover that can rotate around the vertical axis and lean downward against the base body located above, a first elastic member that elastically supports the two base bodies up and down, and at least one buckle unit. The at least one buckle unit includes a first guide member arranged on the rotating cover and a second guide member of the base body located below. The first guide member and the second guide member can be engaged with each other up and down. The rotating cover can be driven to rotate and drive the first guide member to rotate relative to the second guide member, and the base body located above is driven to overcome the elastic force of the first elastic member and move toward the base body located below so that the two are locked and positioned with each other.

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