CN218980362U - Rotary adsorption sit-up aid - Google Patents

Abstract

The utility model discloses a rotary adsorption sit-up aid, which comprises a base and a support frame arranged on the base, wherein a cross rod is arranged on the support frame, a sucker is arranged below the base, the center of the sucker is connected with a lifting assembly, the lifting assembly is inserted into the support frame, a rotary sleeve is sleeved on the support frame and can rotate relative to the support frame, at least one guide inclined plane is arranged on the rotary sleeve, the two ends of the guide inclined plane are respectively provided with a lifting position and a releasing position, the lifting position and the releasing position have a height difference, the lifting position is higher than the releasing position, the lifting assembly stretches out of the support frame to be linked with the guide inclined plane, the lifting assembly rotates relative to the support frame to enable the lifting assembly to lift and can switch the position between the lifting position and the releasing position, the sucker is controlled to adsorb the ground or the sucker is controlled to stop adsorbing the ground, and a space for lifting and moving of the lifting assembly is arranged in the support frame.

Description

Rotary adsorption sit-up aid

Technical Field

The utility model relates to fitness equipment, in particular to a rotary adsorption sit-up aid which assists a user in sit-up exercise.

Background

Sit-ups are a common fitness exercise that not only can increase the strength of abdominal muscles, reduce abdominal fat, but also is beneficial to gastrointestinal exercise and improves physiological functions of the human body. When a person sits down, the two feet are inevitably separated from the ground and bent, so that the movements are irregular, a partner can be generally found to hold the feet when the person sits down, and otherwise, the person is difficult to sit down with standard movements alone.

Some sit-up auxiliary instruments capable of being fixed on the ground are currently available on the market, and are generally fixed in a sucking disc adsorption mode. For example, a portable sit-up device of publication number CN204723696U disclosed in patent publication, comprising a vacuum chuck and a leg holder, the vacuum chuck is composed of a switch, a metal housing and a rubber chuck, the switch is rotatably connected to the metal housing, the switch passes through the metal housing to contact the center of the upper surface of the rubber chuck, the rotation center of the switch is horizontally arranged, the center of the rubber chuck is lifted by the rotation of the switch, the vacuum degree between the rubber chuck and the ground is changed, and the rubber chuck is adsorbed on the ground.

However, the existing sucker structure has poor adsorption effect, is easy to loosen during adsorption, and is provided with a rotary switch above a metal shell, so that the attractive appearance is poor.

Disclosure of Invention

Based on the defects of poor adsorption effect, poor attractiveness and the like, the utility model provides a rotary adsorption sit-up aid.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a rotatory absorbing sit up assistor, includes the base and establishes the support frame on the base, is equipped with the horizontal pole on the support frame, and the below of base is equipped with and is used for fixing the sit up assistor subaerial sucking disc, its characterized in that, the center of sucking disc is connected with carries and draws the subassembly, carries and draws the subassembly to insert and establish the inside at the support frame, the cover is equipped with rotatory cover on the support frame, and rotatory cover can rotate relative to the support frame, is equipped with at least one guide slope on the rotatory cover, and the both ends of guide slope are equipped with respectively and lift the position and loosen the position, lift the position and loosen the position and have the difference in height, lift the position and be higher than the position that loosens, carry and draw the subassembly to stretch out with guide slope linkage in the support frame, relative support frame rotates the rotatory cover makes carry and draw the subassembly to go up and can lift the position and loosen between the position, carry and draw the subassembly downwards the sucking disc is adsorbed ground or control sucking disc stops adsorbing ground, have the space that supplies to carry the subassembly to lift the activity in the support frame.

The further preferable technical scheme of the utility model is as follows: the lifting position is a limiting clamping groove arranged at one end of the guide inclined plane.

The further preferable technical scheme of the utility model is as follows: and both ends of the guide inclined plane are respectively provided with a limiting flange, and when the rotary sleeve rotates relative to the supporting frame, the lifting assembly can prop against the limiting flanges to limit the maximum rotation angle of the rotary sleeve.

The further preferable technical scheme of the utility model is as follows: the infrared counting sensor is electrically connected with the display screen, and faces the human body in the human body sit-up state.

The further preferable technical scheme of the utility model is as follows: the support frame is sleeved with a connecting sleeve, a limit flange at one end of the guide inclined plane is fixed on the rotating sleeve, a limit flange at the other end of the guide inclined plane is fixed on the connecting sleeve, a slot is arranged on the rotating sleeve, the limit flange on the connecting sleeve is inserted into the slot to limit the relative rotation of the rotating sleeve and the connecting sleeve, and the limit flange protrudes out of the slot to be matched with the lifting assembly to limit the maximum rotation angle of the rotating sleeve.

The further preferable technical scheme of the utility model is as follows: the support frame is provided with a movable opening for the lifting assembly to extend out, the lifting assembly extends out of the movable opening to be linked with the guide inclined plane, the movable opening has an extending length in the vertical direction, and a space for the lifting assembly to lift and move is arranged in the movable opening.

The further preferable technical scheme of the utility model is as follows: foot support plates are connected to two sides of the rotating sleeve.

The further preferable technical scheme of the utility model is as follows: the inner wall of the rotary sleeve is provided with two guide inclined planes, the lifting assembly comprises a pull rod and a linkage rod, the bottom of the pull rod is connected with the center of the sucker, the pull rod is inserted into the support frame, the pull rod is provided with a perforation, the linkage rod passes through the perforation, two ends of the linkage rod extend out of the support frame, and two ends of the linkage rod are respectively linked with the guide inclined planes on two sides.

The further preferable technical scheme of the utility model is as follows: the bottom of pull rod is fixed with the connection pad, the center of sucking disc is equipped with the through-hole, and the pull rod passes the through-hole from the lower direction of sucking disc, the bottom of sucking disc is arranged in to the connection pad, the bottom of sucking disc is equipped with the storage tank that is used for the holding connection pad, the upper bottom of storage tank is equipped with a plurality of spacing recesses, be equipped with the spacing bump that corresponds with spacing recess on the connection pad, limit pull rod and sucking disc relative rotation in spacing recess that the spacing bump inserts the correspondence.

The further preferable technical scheme of the utility model is as follows: the support frame comprises a movable frame and a fixed frame, the fixed frame is fixed on the base, the movable frame can be sleeved on the fixed frame in a vertically movable mode, the cross rod is fixed on the movable frame, at least two groups of gear holes are formed in the fixed frame, height differences are formed between the gear holes, a pin hole and a pin shaft which can be inserted into the pin hole in a pluggable mode are formed in the movable frame, the pin hole corresponds to one group of gear hole positions on the fixed frame after the movable frame moves up and down, the pin shaft penetrates through the pin hole and the corresponding group of gear holes, and relative movement of the fixed frame and the movable frame in the vertical direction is locked.

Compared with the prior art, the sit-up auxiliary device has the advantages that when the sit-up auxiliary device is required to be fixed on the ground, the rotary sleeve is rotated, the rotary sleeve is pushed to be lifted upwards by the guide inclined plane, the lifting assembly is switched from a releasing position at one end of the guide inclined plane to a lifting position at the other end of the guide inclined plane, the lifting assembly lifts the center of the sucker upwards, the center of the sucker ascends and is separated from the ground, the center of the sucker generates suction and is adsorbed on the ground, and the sit-up auxiliary device is fixed on the ground; when the sit-up auxiliary device needs to be taken away, the rotating sleeve is rotated in the opposite direction, so that the lifting position of the lifting assembly from one end of the guide inclined plane is switched to the releasing position of the other end, the lifting assembly is lowered due to the gravity action of the lifting assembly and the air pressure pulling between the bottom of the sucker and the ground, the center of the sucker is lowered and reset, the sucker stops adsorbing the ground, and the sit-up auxiliary device can be separated from the ground. The center of the sucker is controlled to be lifted through the lifting mode of the guide inclined surface, so that the suction effect of the sucker is better, the structure is more stable, and the spanner is not required to be set for pulling, so that the sucker is more attractive.

Drawings

The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is an overall block diagram of an end of a sit-up aid linkage bar in a release position;

FIG. 2 is a cut-away view of the end of the sit-up aid linkage bar in the release position;

FIG. 3 is a partial schematic view of an end of the sit-up aid linkage bar in a release position;

FIG. 4 is a schematic view of a swivel sleeve and coupling sleeve combination;

FIG. 5 is an exploded view of the sit-up aid;

FIG. 6 is a partially exploded view of the sit-up aid;

FIG. 7 is a schematic view of the overall structure of the rotating sleeve;

FIG. 8 is an overall construction view of the end of the sit-up aid linkage bar in the raised position;

FIG. 9 is a cut-away view of an end of the sit-up aid linkage bar in a raised position;

FIG. 10 is a partial schematic view of an end of the sit-up aid linkage bar in a raised position;

fig. 11 is a view showing a state of use of the sit-up aid.

In the figure: 1. a base; 2. a support frame; 3. a pressing plate; 4. soaking cotton sleeves; 5. a cross bar; 6. a rotating sleeve; 7. a foot support plate; 8. a pin shaft; 9. a pull ring; 10. a pin hole; 11. a suction cup; 12. a mounting groove; 13. a transparent plastic plate; 14. a mounting hole; 15. a movable frame; 16. a gear hole; 17. a fixing frame; 18. a coupling sleeve; 19. a movable opening; 20. a pull rod; 21. a releasing position; 22. a deformation cavity; 23. a limit groove; 24. a receiving groove; 25. a linkage rod; 26. limiting protruding points; 27. a slot; 28. a guide slope; 29. a limit flange; 30. perforating; 31. a connecting disc; 32. a lifting position; 33. an outer annular rim; 34. a through hole; 35. an assembly groove; 36. a display screen; 37. an infrared counting sensor.

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the utility model.

It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.

The sit-up assistor comprises a base 1 and a support frame 2 arranged on the base 1, wherein a cross rod 5 is arranged on the support frame 2, the cross rod 5 is horizontally arranged, and a sucker 11 for fixing the sit-up assistor on the ground is arranged below the base 1.

As shown in fig. 2, specifically, the center of the suction cup 11 is connected with a lifting assembly, a cavity communicated with the bottom of the base 1 is arranged in the support frame 2, the lifting assembly is inserted into the internal cavity of the support frame 2 from the bottom of the base 1, and the internal cavity of the support frame 2 is provided with a space for lifting the lifting assembly.

As shown in fig. 1, 2, 3 and 7, the support frame 2 is sleeved with a rotating sleeve 6, the rotating sleeve 6 can rotate relative to the support frame 2, and preferably, the rotating center of the rotating sleeve 6 is arranged vertically.

The rotary sleeve 6 is provided with at least one guide inclined plane 28, two ends of the guide inclined plane 28 are respectively provided with a lifting position 32 and a releasing position 21, the lifting position 32 and the releasing position 21 have height difference, the lifting position 32 is higher than the releasing position 21, and the lifting assembly extends out of the support frame 2 and is linked with the guide inclined plane 28.

Preferably, two guiding inclined planes 28 are arranged on the inner wall of the rotary sleeve 6, the lifting assembly comprises a pull rod 20 and a linkage rod 25, the bottom of the pull rod 20 is connected with the center of the sucker 11, the pull rod 20 is inserted into the inner cavity of the support frame 2 from the bottom of the base 1, the inner cavity of the support frame 2 is provided with a space for lifting and lowering the pull rod 20, the pull rod 20 is provided with a perforation 30, the linkage rod 25 penetrates through the perforation 30, two ends of the linkage rod 25 protrude out of two sides of the pull rod 20, two ends of the linkage rod 25 extend out of the support frame 2, and two ends of the linkage rod 25 are respectively linked with the guiding inclined planes 28 on two sides. The linkage rod 25 is horizontally arranged, and one end of the linkage rod 25 is positioned above the guide inclined plane 28 on one side and is matched and linked with the guide inclined plane 28.

As shown in fig. 2 and 5, a connecting disc 31 is fixed to the bottom of the tie rod 20, a through hole 34 is formed in the center of the suction disc 11, the tie rod 20 is inserted into the internal cavity of the support frame 2 from the lower direction of the suction disc 11 through the through hole 34, the connecting disc 31 is arranged at the bottom of the suction disc 11 and connected with the suction disc 11, and the size of the connecting disc 31 is larger than the aperture of the through hole 34.

Specifically, the bottom of the sucking disc 11 is provided with a containing groove 24 for containing the connecting disc 31, the connecting disc 31 is inserted into the containing groove 24, the connecting disc 31 can be tightly matched with the containing groove 24 for plugging, or the connecting disc 31 can be fixed in the containing groove 24 through glue.

And the upper bottom of the accommodating groove 24 is provided with a plurality of limit grooves 23, the connecting disc 31 is provided with limit convex points 26 corresponding to the limit grooves 23, and the limit convex points 26 are inserted into the corresponding limit grooves 23 to limit the relative rotation of the pull rod 20 and the sucker 11, so that the connecting disc 31 is connected with the accommodating groove 24 more stably.

The suction cup 11 is made of elastic material such as rubber, and the connecting disc 31 is made of hard material. The size of the sucker 11 is larger than that of the base 1, and the outer edge of the bottom of the base 1 presses the outer edge of the sucker 11 below.

In addition, a movable opening 19 for extending a lifting assembly is arranged on the side wall of the support frame 2, the lifting assembly extends out of the movable opening 19 to be linked with the guide inclined plane 28, the movable opening 19 has an extending length in the vertical direction, and a space for lifting and moving the lifting assembly is arranged in the movable opening 19. Specifically, two movable ports 19 are arranged at two ends of the corresponding linkage rod 25, the two movable ports 19 are arranged at two sides of the support frame 2, two ends of the linkage rod 25 extend out of the two movable ports 19 respectively and are linked with guide inclined planes 28 at two sides, and a space for lifting and moving the end part of the linkage rod 25 is arranged in the movable ports 19.

Preferably, the width of the movable port 19 is equal to the width of the link lever 25.

As shown in fig. 4, both ends of the guiding inclined surface 28 are provided with a limit rib 29, and when the rotating sleeve 6 rotates relative to the supporting frame 2, the end of the linkage rod 25 can abut against the limit rib 29 to limit the maximum rotation angle of the rotating sleeve 6, preferably, the maximum rotation angle of the rotating sleeve 6 is 90 degrees.

The support frame 2 is sleeved with a connecting sleeve 18, the connecting sleeve 18 is positioned above the rotating sleeve 6, the connecting sleeve 18 can rotate relative to the support frame 2, a limit flange 29 at one end of a guide inclined plane 28 is fixed on the rotating sleeve 6, the limit flange 29 is fixed on the inner wall of the rotating sleeve 6 and is integrally formed with the inner wall of the rotating sleeve 6, a limit flange 29 at the other end of the guide inclined plane 28 is fixed on the connecting sleeve 18, the limit flange 29 is fixed at the bottom of the connecting sleeve 18 and is integrally formed with the connecting sleeve 18, a slot 27 is arranged on the inner wall of the rotating sleeve 6, the limit flange 29 on the connecting sleeve 18 is inserted into the slot 27 to limit the relative rotation of the rotating sleeve 6 and the connecting sleeve 18, so that the rotating sleeve 18 can be driven to rotate when the rotating sleeve 6 rotates, an inserting port for inserting the limit flange 29 into the slot 27 is arranged at the top of the rotating sleeve 6, and part of the limit flange 29 on the connecting sleeve 18 protrudes from the slot 27 and is used for limiting the maximum rotation angle of the rotating sleeve 6 by matching with the end part of the connecting rod 25.

A limit stop 29 on the coupling sleeve 18 is in close fit engagement with the slot 27.

As shown in fig. 7, the lifting position 32 is preferably a limit catch provided at the upper end of the guide inclined surface 28, and the releasing position 21 is preferably a position where the lower end of the guide inclined surface 28 abuts the limit rib 29.

When the sit-up aid needs to be fixed on the ground, as shown in fig. 8 to 10, the rotating sleeve 6 is rotated anticlockwise relative to the support frame 2, so that the end of the linkage rod 25 is switched from the releasing position 21 to the lifting position 32 along the guide inclined surface 28, the rotating sleeve 6 drives the linkage rod 25 to move upwards through the guide inclined surface 28, the linkage rod 25 drives the pull rod 20 to move upwards, the pull rod 20 pulls the center of the sucker 11 upwards, the edge of the sucker 11 is pressed on the ground due to the bottom edge of the base 1, and when the center of the sucker 11 is pulled upwards, the sucker 11 can be adsorbed on the ground, so that the sit-up aid is fixed on the ground. The lifting position 32 is a limiting clamping groove, and the rotating sleeve 6 is rotated to enable the end part of the linkage rod 25 to fall into the limiting clamping groove, so that the end part of the linkage rod 25 is prevented from sliding downwards, and the sucker 11 cannot adsorb the ground.

When the sit-up aid needs to be separated from the ground as shown in fig. 1 to 4, the rotating sleeve 6 is rotated clockwise relative to the supporting frame 2 so that the end of the linkage rod 25 is switched from the lifting position 32 to the releasing position 21, the end of the linkage rod 25 abuts against the limit rib 29 at one end of the guide slope 28, the pull rod 20 and the linkage rod 25 are lowered due to the gravity action of the pull rod 20 and the linkage rod 25 and the pneumatic pulling between the suction cup 11 and the ground, and the center of the suction cup 11 is lowered and reset, so that the user can take the sit-up aid off the ground.

The rotating sleeve 6 rotates 90 degrees anticlockwise relative to the supporting frame 2, the end part of the linkage rod 25 just switches from the releasing position 21 to the lifting position 32, the rotating sleeve 6 rotates 90 degrees clockwise relative to the supporting frame 2, and the end part of the linkage rod 25 just switches from the lifting position 32 to the releasing position 21.

In addition, the bottom of the base 1 has a deformation cavity 22 for the suction cup 11 to elastically deform.

Preferably, the both sides of the rotating sleeve 6 are connected with foot support plates 7, and the foot support plates 7 and the rotating sleeve 6 are integrally formed, so that the rotating sleeve 6 can be rotated through the foot support plates 7, and the stress is better, and the rotating sleeve 6 can be rotated more conveniently.

When the rotating sleeve 6 rotates 90 degrees anticlockwise relative to the supporting frame 2, the end part of the linkage rod 25 is switched from the releasing position 21 to the lifting position 32, the sucker 11 is adsorbed on the ground, at the moment, the foot supporting plate 7 rotates to a position parallel to the transverse rod 5, and a space for extending feet is reserved between the transverse rod 5 and the foot supporting plate 7.

As shown in fig. 11, when the user performs sit-up exercise, the sit-up aid is fixed on the ground, the sole of the user steps on the foot support plate 7, and the instep of the user is rested under the cross bar 5, the user lies on the ground to perform sit-up exercise, and the cross bar 5 cooperates with the foot support plate 7 to press the feet during exercise to aid the user in performing sit-up exercise.

In addition, as shown in fig. 2, the supporting frame 2 includes a movable frame 15 and a fixed frame 17, the fixed frame 17 is fixed at the top of the base 1, a cavity is provided in the fixed frame 17 for inserting a pull rod 20, the movable frame 15 is sleeved on the fixed frame 17 in a vertically movable manner, the cross rod 5 is fixed on the movable frame 15, at least two sets of gear holes 16 are provided on the fixed frame 17, a height difference is provided between each set of gear holes 16, a pin hole 10 and a pin shaft 8 which is pluggable and inserted into the pin hole 10 are provided on the movable frame 15, the pin hole 10 corresponds to one set of gear holes 16 on the fixed frame 17 after the movable frame 15 moves up and down, the pin shaft 8 passes through the pin hole 10 and the corresponding set of gear holes 16 of the pin hole 10, and the fixed frame 17 and the movable frame 15 are locked to move relatively in the vertical direction.

Preferably, two sets of gear holes 16 are formed in the fixing frame 17, when the height of the cross rod 5 is required to be adjusted, the pin shaft 8 is pulled out of the pin hole 10 and the gear holes 16, the movable frame 15 is lifted and moved to enable the movable frame 15 to move to the required height, the pin hole 10 on the movable frame 15 corresponds to a set of gear holes 16 on the fixing frame 17, the pin shaft 8 is inserted into the pin hole 10 and a set of gear holes 16 corresponding to the pin hole 10, and the height adjustment is completed to adapt to different requirements of users.

Preferably, at least one first contact plane is arranged on the fixed frame 17, a second contact plane matched with the first contact plane on the fixed frame 17 is arranged on the movable frame 15, and when the movable frame 15 is sleeved on the fixed frame 17, the first contact plane is in surface-to-surface joint with the second contact plane, so that the movable frame 15 is limited to rotate relative to the fixed frame 17.

The pin shaft 8 is provided with a pull ring 9 for holding by hands.

In addition, when the movable frame 15 is sleeved on the fixed frame 17, the bottom end of the movable frame 15 is sleeved outside the connecting sleeve 18 to cover the connecting sleeve 18, the outer wall of the connecting sleeve 18 is provided with an outer ring edge 33, the outer ring edge 33 is positioned below the movable frame 15, and when the connecting sleeve 18 moves upwards relative to the rotating sleeve 6, the outer ring edge 33 can abut against the bottom of the movable frame 15 to limit the limit flange 29 on the connecting sleeve 18 to be separated from the slot 27.

In addition, the movable frame 15 is provided with mounting holes 14 penetrating through the left side and the right side, the cross rod 5 is a rod body, the cross rod 5 penetrates through the mounting holes 14, two ends of the cross rod 5 protrude out of the left side and the right side of the movable frame 15, and the cross rod 5 is fixed with the movable frame 15 through screws.

The exposed parts of the cross bars 5 at the two sides of the movable frame 15 are sleeved with foam sleeves 4.

The movable frame 15 is provided with an infrared counting sensor 37, a control module and a display screen 36, wherein the infrared counting sensor 37 and the display screen 36 are electrically connected with the control module, and the infrared counting sensor 37, the display screen 36 and the control module are connected on a circuit board.

Preferably, the control module is a PLC control module or a single chip microcomputer, and the infrared counting sensor 37 and the display screen 36 are both mounted on the top of the movable frame 15.

The top of movable frame 15 is equipped with assembly groove 35, and the notch of assembly groove 35 has clamp plate 3 through screwed connection, and clamp plate 3 presses above-mentioned circuit board at assembly groove 35 internal fixation, is equipped with the hole that supplies display screen 36 and infrared counting sensor 37 to wear out on the clamp plate 3, and the top of clamp plate 3 is equipped with mounting groove 12, has transparent plastic slab 13 in the tight fit grafting of mounting groove 12, and transparent plastic slab 13 covers in display screen 36 and infrared counting sensor 37 top.

The screws for connecting the cross rod 5 and the movable frame 15 are positioned in the assembly grooves 35, the pressing plate 3, the infrared counting sensor 37 and the display screen 36 can be taken out, the cross rod 5 is inserted into the mounting holes 14, the cross rod 5 is fixed on the movable frame 15 through the screws, and the installation of the cross rod 5 is facilitated.

In the user sit-up state, the infrared counting sensor 37 faces the human body, the human body is switched back and forth between sit-up and sit-up, when the human body sits up, the user moves into the sensing range of the output end of the infrared counting sensor 37, the infrared counting sensor 37 is triggered once, the infrared counting sensor 37 transmits signals to the control module, the control module controls the display screen 36 to display the count to be increased once, and the display screen 36 is increased once every time the user sits up.

The infrared counting sensor 37 is, for example, an infrared sensing photoelectric switch of the type E3F-DS30C4, brand DAWEI/Dawei electrical apparatus.

The control module is also electrically connected with a control switch, a power supply and a charging port, and the control switch is used for controlling starting, closing and counting.

The rotary suction sit-up aid provided by the present utility model has been described above, and specific examples are applied herein to illustrate the principles and embodiments of the present utility model, the above examples being provided only to assist in understanding the present utility model and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. The utility model provides a rotatory absorbing sit up assistor, includes the base and establishes the support frame on the base, is equipped with the horizontal pole on the support frame, and the below of base is equipped with and is used for fixing the sit up assistor subaerial sucking disc, its characterized in that, the center of sucking disc is connected with carries and draws the subassembly, carries and draws the subassembly to insert and establish the inside at the support frame, the cover is equipped with rotatory cover on the support frame, and rotatory cover can rotate relative to the support frame, is equipped with at least one guide slope on the rotatory cover, and the both ends of guide slope are equipped with respectively and lift the position and loosen the position, lift the position and loosen the position and have the difference in height, lift the position and be higher than the position that loosens, carry and draw the subassembly to stretch out with guide slope linkage in the support frame, relative support frame rotates the rotatory cover makes carry and draw the subassembly to go up and can lift the position and loosen between the position, carry and draw the subassembly downwards the sucking disc is adsorbed ground or control sucking disc stops adsorbing ground, have the space that supplies to carry the subassembly to lift the activity in the support frame.

2. The rotary suction sit-up aid of claim 1, wherein the raised position is a limit catch groove provided at one end of the guide slope.

3. The rotary suction sit-up aid according to claim 1, wherein both ends of the guide slope are provided with limit flanges, and the pull-up assembly can abut against the limit flanges to limit the maximum rotation angle of the rotary sleeve when the rotary sleeve is rotated relative to the support frame.

4. The rotary suction sit-up aid according to claim 1, wherein the support frame is provided with an infrared counting sensor and a display screen, the infrared counting sensor being electrically connected with the display screen, the infrared counting sensor facing the human body in the human body sit-up state.

5. The rotary adsorption sit-up aid according to claim 3, wherein the support frame is sleeved with a coupling sleeve, a limit flange at one end of the guide inclined plane is fixed on the rotary sleeve, a limit flange at the other end of the guide inclined plane is fixed on the coupling sleeve, a slot is arranged on the rotary sleeve, the limit flange on the coupling sleeve is inserted into the slot to limit relative rotation of the rotary sleeve and the coupling sleeve, and the limit flange protrudes out of the slot to limit the maximum rotation angle of the rotary sleeve in cooperation with the lifting assembly.

6. The rotary adsorption sit-up aid according to claim 1, wherein the support frame is provided with a movable opening for the lifting assembly to extend, the lifting assembly extends out of the movable opening and is linked with the guide inclined plane, the movable opening has an extending length in the vertical direction, and a space for the lifting assembly to move up and down is formed in the movable opening.

7. The rotary suction sit-up aid according to claim 1, wherein the rotating sleeve is connected with foot support plates at both sides thereof.

8. The rotary adsorption sit-up aid according to claim 1, wherein two guide inclined planes are arranged on the inner wall of the rotary sleeve, the lifting assembly comprises a pull rod and a linkage rod, the bottom of the pull rod is connected with the center of the sucker, the pull rod is inserted into the support frame, a through hole is arranged on the pull rod, the linkage rod passes through the through hole, two ends of the linkage rod extend out of the support frame, and two ends of the linkage rod are respectively linked with the guide inclined planes on two sides.

9. The rotary adsorption sit-up aid according to claim 8, wherein a connecting disc is fixed at the bottom of the pull rod, a through hole is formed in the center of the sucker, the pull rod penetrates through the through hole from the lower direction of the sucker, the connecting disc is arranged at the bottom of the sucker, a containing groove for containing the connecting disc is formed in the bottom of the sucker, a plurality of limiting grooves are formed in the upper bottom of the containing groove, limiting protruding points corresponding to the limiting grooves are formed in the connecting disc, and the pull rod and the sucker are limited to rotate relatively by inserting the limiting protruding points into the corresponding limiting grooves.

10. The rotary adsorption sit-up aid according to claim 1, wherein the support frame comprises a movable frame and a fixed frame, the fixed frame is fixed on the base, the movable frame is sleeved on the fixed frame in a vertically movable mode, the cross rod is fixed on the movable frame, at least two groups of gear holes are formed in the fixed frame, a height difference exists between the gear holes, a pin hole and a pin shaft which is inserted into the pin hole in a pluggable mode are formed in the movable frame, the pin hole corresponds to one group of gear hole positions in the fixed frame after the movable frame moves up and down, the pin shaft penetrates through the pin hole and the corresponding group of gear holes, and relative movement of the fixed frame and the movable frame in the vertical direction is locked.

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