CN214714117U

CN214714117U - Pull-up auxiliary exercise device

Info

Publication number: CN214714117U
Application number: CN202120046759.9U
Authority: CN
Inventors: 王鹏; 王伟
Original assignee: Inner Mongolia University of Science and Technology
Current assignee: Inner Mongolia University of Science and Technology
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-11-16
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a pull-up auxiliary exercise device, which comprises a support block, a first transmission mechanism, a second transmission mechanism and a limit mechanism. The number of the support blocks is two, and the support blocks are provided with recesses. A first screw rod is arranged in the groove through a bearing, and a rotating rod is arranged on the outer side of the first screw rod through the bearing, and the rotating rod and the first screw rod are connected by a transmission mechanism. The utility model uses the first motor, the second transmission mechanism, the threaded rod, the threaded sleeve, the limit mechanism, the clamping slot, the second motor, the second screw, the second threaded sleeve, the connecting plate and the limit block. The height adjustment and locking of the support rod can be realized, which can be suitable for users of different heights, and is easy to adjust. At the same time, the rotating rod, the first transmission mechanism, the first screw rod, the first threaded sleeve, the support plate and the universal wheel are used together. , to achieve the extension and contraction of the universal wheel, when not moving, the universal wheel is retracted to avoid affecting the safety of the user.

Description

Pull-up auxiliary exercise device

Technical Field

The utility model relates to a sports goods technical field specifically is a chin auxiliary exercise device.

Background

The pull-up is a strength endurance project, which is also the most basic method for back exercise at present, and the emphasis is on exercising trapezius, latissimus dorsi and biceps brachii, which can be divided into: the pull-up type comprises a forehand, a backhand, a forehand, a parallel, a chest type, a neck back, a load, a towel, a single hand, a single arm, a single finger and the like. The pull-up requires a certain grip strength, upper limb strength and shoulder strap strength, which must be overcome to overcome the body weight once. The pull-up has an important role in developing the upper limb suspension force, shoulder strap force and grip strength. Therefore, the pull-up auxiliary exercise device is also a necessary examination item for physical examination in various schools, and the existing pull-up auxiliary exercise device has the following problems in the use process:

1. pull-up is generally carried out on a horizontal bar or two bars, different people have different heights, so that the people are inconvenient to grab the horizontal bar and need other people to grasp the horizontal bar or the two bars in an auxiliary way, and the people are inconvenient to exercise;

2. pull-up auxiliary exercise equipment is generally bulky and inconvenient to move and transport.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chin auxiliary exercise device to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pull-up auxiliary exercise device comprises two support blocks, a first transmission mechanism, a second transmission mechanism and a limiting mechanism, wherein a groove is formed in each support block, a first screw rod is arranged in each groove through a bearing, a rotating rod is arranged on the outer side of each first screw rod through a bearing, the rotating rods are connected with the first screw rods through the first transmission mechanism, each first transmission mechanism comprises a first driving bevel gear and a first driven bevel gear, the rotating rods are fixedly welded with the first driving bevel gear, the first screw rods are sleeved with the first driven bevel gears, the first driving bevel gears are meshed with the first driven bevel gears, the lower ends of the first screw rods are in threaded connection with first threaded sleeves, the lower ends of the first threaded sleeves are fixedly welded with support plates, and the lower ends of the support plates are fixedly welded with universal wheels, the upper end of the groove on the supporting block is provided with a first cavity, a threaded rod is arranged in the first cavity through a bearing, a first motor is fixedly welded on the lower side of the threaded rod in the first cavity, the first motor is connected with the threaded rod through a second transmission mechanism, the upper ends of the two supporting blocks are fixedly welded with supporting columns, a controller is fixedly welded on the outer side of one of the supporting columns, moving grooves are respectively formed on the two supporting columns at the sides close to each other, the upper end of the threaded rod penetrates through the supporting blocks and the outer walls of the supporting columns and is connected with the upper walls of the moving grooves through the bearing, the upper end of the threaded rod is in threaded connection with threaded sleeves, mounting grooves are respectively formed on the two threaded sleeves at the sides close to each other, the same supporting rod is slidably connected in the two mounting grooves, and a limiting groove is respectively formed on the side far away from each other of the two threaded sleeves, the limiting groove is internally provided with a limiting mechanism, a plurality of clamping grooves are formed in the inner wall of one side, away from each other, of the moving groove, a second cavity is formed in the outer side of the moving groove on the supporting column, a second motor is fixedly welded in the second cavity, an output shaft of the second motor is connected with a second screw rod, the tail end of the second screw rod is connected with a second threaded sleeve in a threaded mode, the tail end of the second threaded sleeve is fixedly welded with a connecting plate, a plurality of limiting blocks are fixedly welded on the connecting plate, the tail ends of the limiting blocks penetrate through the inner wall of the second cavity and are connected with the clamping grooves in a sliding mode, and the first motor and the second motor are electrically connected with the controller.

Preferably, the limiting mechanism comprises a spring and a fixing block, the spring is fixedly welded in the limiting groove, the fixing block is fixedly welded at the tail end of the spring, and the fixing block is connected with one of the clamping grooves in a sliding mode.

Preferably, the outer side of the first threaded sleeve on the supporting plate is fixedly welded with a telescopic rod, the upper end of the telescopic rod is fixedly welded with the inner wall of the groove, and the supporting plate is fixedly welded with four universal wheels.

Preferably, the upper side and the lower side of the second motor in the second cavity are respectively welded and fixed with a guide rod, and the guide rods penetrate through the connecting rod and are in sliding connection with the connecting plate.

Preferably, the rotating rod penetrates through the supporting block and is fixedly welded with the handle.

Preferably, the outer side of the mounting groove on the threaded sleeve is provided with a plurality of limiting holes, the limiting holes are internally connected with bolts in a sliding manner, and the supporting rod is provided with screw holes matched with the bolts.

Preferably, the second transmission mechanism comprises a second driving bevel gear and a second driven bevel gear, the second driving bevel gear is fixedly arranged on the first motor, the second driven bevel gear is fixedly arranged on the threaded rod in a fixed mode, and the second driving bevel gear is meshed with the second driven bevel gear.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model realizes the height adjustment and locking of the support rod through the matching use of the first motor, the second transmission mechanism, the threaded rod, the threaded sleeve, the limiting mechanism, the clamping groove, the second motor, the second screw rod, the second threaded sleeve, the connecting plate and the limiting block, can be suitable for users with different heights and is convenient to adjust;

2. the utility model discloses dwang, first drive mechanism, first screw rod, first thread bush, backup pad, the cooperation of universal wheel are used simultaneously, realize stretching out and the shrink of universal wheel, and when unmovable, avoid influencing user's safety with the universal wheel shrink, have simple structure, convenient to use, excellent in use effect's advantage.

Drawings

FIG. 1 is a front sectional view of a pull-up auxiliary exercise device of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is an enlarged view of the structure at C in fig. 1.

In the figure: 1. a support block; 2. a first screw; 3. rotating the rod; 4. a first drive bevel gear; 5. a first driven bevel gear; 6. a first threaded sleeve; 7. a support plate; 8. a threaded rod; 9. a first motor; 10. a support pillar; 11. a controller; 12. a threaded sleeve; 13. a support bar; 14. a second motor; 15. A second screw; 16. a second threaded sleeve; 17. a connecting plate; 18. a limiting block; 19. a spring; 20. A fixed block; 21. a telescopic rod; 22. a guide bar; 23. a bolt; 24. a universal wheel; 25. a second drive bevel gear; 26. a second driven bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a pull-up auxiliary exercise device comprises two support blocks 1, a first transmission mechanism, a second transmission mechanism and a limiting mechanism, wherein the number of the support blocks 1 is two, a groove is formed in each support block 1, a first screw 2 is arranged in each groove through a bearing, a rotating rod 3 is arranged on the outer side of each first screw 2 through a bearing, each rotating rod 3 is connected with the corresponding first screw 2 through the corresponding first transmission mechanism, each first transmission mechanism comprises a first driving conical gear 4 and a first driven conical gear 5, the corresponding first driving conical gear 4 is fixedly welded on each rotating rod 3, the corresponding first driven conical gear 5 is sleeved on each first screw 2, the corresponding first driving conical gear 4 is meshed with the corresponding first driven conical gear 5, the lower end of each first screw 2 is connected with a first threaded sleeve 6 in a threaded manner, the lower end of each first threaded sleeve 6 is fixedly welded with a support plate 7, the lower end of each support plate 7 is fixedly welded with a plurality of universal wheels 24, the upper end of a groove on the supporting block 1 is provided with a first cavity, a threaded rod 8 is arranged in the first cavity through a bearing, a first motor 9 is fixedly welded on the lower side of the threaded rod 8 in the first cavity, the first motor 9 is connected with the threaded rod 8 through a second transmission mechanism, supporting columns 10 are fixedly welded on the upper ends of the two supporting blocks 1, a controller 11 is fixedly welded on the outer side of one of the supporting columns 10, moving grooves are respectively formed on the sides, close to each other, of the two supporting columns 10, the upper end of the threaded rod 8 penetrates through the supporting block 1 and the outer wall of the supporting column 10 and is connected with the upper wall of the moving groove through a bearing, the upper end of the threaded rod 8 is in threaded connection with threaded sleeves 12, mounting grooves are respectively formed on the sides, close to each other, of the two threaded sleeves 12, the same supporting rod 13 is slidably connected in the two mounting grooves, and limiting grooves are respectively formed on the sides, far away from each other, of the two threaded sleeves 12, a limiting mechanism is arranged in the limiting groove, a plurality of clamping grooves are formed in the inner walls of the two moving grooves, which are far away from each other, of the two moving grooves, a second cavity is formed in the outer side of the moving groove on the support column 10, a second motor 14 is fixedly welded in the second cavity, an output shaft of the second motor 14 is connected with a second screw 15, the tail end of the second screw 15 is in threaded connection with a second threaded sleeve 16, a connecting plate 17 is fixedly welded at the tail end of the second threaded sleeve 16, a plurality of limiting blocks 18 are fixedly welded on the connecting plate 17, the tail ends of the limiting blocks 18 penetrate through the inner wall of the second cavity and are in sliding connection with the clamping grooves, and the first motor 9 and the second motor 14 are both electrically connected with the controller 11;

the limiting mechanism comprises a spring 19 and a fixing block 20, the spring 19 is fixedly welded in a limiting groove, the tail end of the spring 19 is fixedly welded with the fixing block 20, the fixing block 20 is connected with one of the clamping grooves in a sliding mode, an expansion link 21 is fixedly welded on the outer side of a first threaded sleeve 6 on a supporting plate 7, the upper end of the expansion link 21 is fixedly welded with the inner wall of the groove, four universal wheels 24 are fixedly welded on a single supporting plate 7, guide rods 22 are fixedly welded on the upper side and the lower side of a second motor 14 in a second cavity, the guide rods 22 penetrate through connecting rods and are connected with a connecting plate 17 in a sliding mode, a handle is fixedly welded on the rotating rod 3 penetrating through the supporting block 1, a plurality of limiting holes are formed in the outer side of an installation groove in the threaded sleeve 12, bolts 23 are connected in the limiting holes in a sliding mode, a screw hole matched with the bolts 23 is formed in the supporting rod 13, and the second transmission mechanism comprises a second driving bevel gear 25, And the second driving bevel gear 25 is fixedly arranged on the first motor 9, the second driven bevel gear 26 is fixedly sleeved on the threaded rod 8, and the second driving bevel gear 25 is meshed with the second driven bevel gear 26.

The working principle is as follows: when the height of the supporting rod 13 needs to be adjusted, the second motor 14 is started, the second motor 14 rotates forwards, the second screw rod 15 is driven to rotate, the second threaded sleeve is driven to move, the connecting plate 17 and the limiting block 18 are driven to move, the spring 19 is extruded, the first motor 9 is started, the first motor 9 rotates, the threaded rod 8 is driven to rotate, and the threaded sleeve 12 is driven to move up and down, thereby driving the supporting rod 13 to move up and down, when the supporting rod is moved to a proper clamping groove position, starting the second motor 14, reversely rotating the second motor 14, thereby driving the second screw rod 15 to rotate, thereby driving the first threaded sleeve to move, thereby driving the connecting plate 17 and the limiting block 18 to move, loosening the spring 19, clamping the fixing block 20 with the clamping groove, fixing the supporting rod 13, and improving the safety; the utility model discloses a first motor 9, second drive mechanism, threaded rod 8, thread bush 12, stop gear, the draw-in groove, second motor 14, second screw rod 15, second threaded sleeve 16, connecting plate 17, stopper 18's cooperation is used, realize the height and the locking of adjust support pole 13, can be suitable for the user of different heights, and be convenient for adjust, dwang 3 simultaneously, first drive mechanism, first screw rod 2, first threaded sleeve 6, backup pad 7, universal wheel 24's cooperation is used, realize stretching out and the shrink of universal wheel 24, when unmovable, avoid influencing user's safety with the 24 contractions of universal wheel, and the electric iron has the advantages of simple structure, high durability and convenient use, and good use effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a chin auxiliary exercise device, includes supporting shoe (1), first drive mechanism, second drive mechanism, stop gear, its characterized in that: the number of the supporting blocks (1) is two, a groove is formed in each supporting block (1), a first screw rod (2) is arranged in the groove in a rotating mode, a rotating rod (3) is arranged on the outer side of each first screw rod (2) in a rotating mode, the rotating rod (3) is connected with the first screw rods (2) through a first transmission mechanism, the first transmission mechanism comprises a first driving bevel gear (4) and a first driven bevel gear (5), the rotating rod (3) is fixedly connected with the first driving bevel gear (4), the first screw rods (2) are sleeved with the first driven bevel gear (5), the first driving bevel gear (4) is meshed with the first driven bevel gear (5), the lower end of each first screw rod (2) is connected with a first threaded sleeve (6) in a threaded mode, and the lower end of each first threaded sleeve (6) is fixedly connected with a supporting plate (7), the lower end of the supporting plate (7) is fixedly connected with a plurality of universal wheels (24), the upper end of an upper groove of each supporting block (1) is provided with a first cavity, a threaded rod (8) is arranged in the first cavity in a rotating mode, the lower side of the threaded rod (8) in the first cavity is fixedly connected with a first motor (9), the first motor (9) is connected with the threaded rod (8) through a second transmission mechanism, the upper ends of the two supporting blocks (1) are fixedly connected with supporting columns (10), the outer side of one of the supporting columns (10) is fixedly connected with a controller (11), one sides of the two supporting columns (10) which are close to each other are respectively provided with a moving groove, the upper end of the threaded rod (8) penetrates through the supporting blocks (1) and is connected with the outer wall of the supporting column (10) in a rotating mode, the upper end of the threaded rod (8) is connected with a threaded sleeve (12) in a threaded mode, one side, close to each other, of each of the two thread sleeves (12) is provided with a mounting groove, the two mounting grooves are connected with the same supporting rod (13) in a sliding manner, one side, far away from each other, of each of the two thread sleeves (12) is provided with a limiting groove, a limiting mechanism is arranged in each limiting groove, the inner wall of one side, far away from each other, of each moving groove is provided with a plurality of clamping grooves, the outer side of the moving groove on the supporting column (10) is provided with a second cavity, a second motor (14) is fixedly connected in each second cavity, an output shaft of the second motor (14) is connected with a second screw rod (15), the tail end of the second screw rod (15) is in threaded connection with a second threaded sleeve (16), the tail end of the second threaded sleeve (16) is fixedly connected with a connecting plate (17), and the connecting plate (17) is fixedly connected with a plurality of limiting blocks (18), the tail end of the limiting block (18) penetrates through the inner wall of the second cavity and is in sliding connection with the clamping groove, and the first motor (9) and the second motor (14) are electrically connected with the controller (11).

2. A pull-up assist exercise device as claimed in claim 1, wherein: the limiting mechanism comprises a spring (19) and a fixing block (20), the limiting groove is fixedly connected with the spring (19), the tail end of the spring (19) is fixedly connected with the fixing block (20), and the fixing block (20) is connected with one of the clamping grooves in a sliding mode.

3. A pull-up assist exercise device as claimed in claim 1, wherein: the outer side of the first threaded sleeve (6) on the supporting plate (7) is fixedly connected with a telescopic rod (21), the upper end of the telescopic rod (21) is fixedly connected with the inner wall of the groove, and the supporting plate (7) is fixedly connected with four universal wheels (24).

4. A pull-up assist exercise device as claimed in claim 1, wherein: the upper side and the lower side of a second motor (14) in the second cavity are fixedly connected with guide rods (22), and the guide rods (22) penetrate through the connecting rod and are in sliding connection with the connecting plate (17).

5. A pull-up assist exercise device as claimed in claim 1, wherein: the rotating rod (3) penetrates through the supporting block (1) and is fixedly connected with a handle.

6. A pull-up assist exercise device as claimed in claim 1, wherein: a plurality of limiting holes are formed in the outer side of the mounting groove in the threaded sleeve (12), bolts (23) are connected in the limiting holes in a sliding mode, and screw holes matched with the bolts (23) are formed in the supporting rod (13).

7. A pull-up assist exercise device as claimed in claim 1, wherein: the second transmission mechanism comprises a second driving bevel gear (25) and a second driven bevel gear (26), the second driving bevel gear (25) is fixedly arranged on the first motor (9), the second driven bevel gear (26) is fixedly sleeved on the threaded rod (8), and the second driving bevel gear (25) is meshed with the second driven bevel gear (26).