CN105727518B - A kind of electric sit-ups fitness equipment - Google Patents

Abstract

The invention discloses an electric sit-up fitness machine, which comprises a base, a back support plate, a back support plate mounting seat, a crank and the like. The back support plate is hingedly installed on the back support plate mounting frame. The crank and the driven wheel are respectively rotated and installed on both sides of the crank mounting frame through the mounting shaft. A driving wheel is installed on the motor shaft. The two roller mounts are respectively hingedly mounted on the central axes of the two rollers. The two roller grooves are fixedly installed on the base respectively. One ends of the two sleeves are respectively fixedly installed on the two roller mounting frames, and the other ends of the two sleeves are respectively slidably installed with two telescopic sleeves. One end of the connecting rod is hingedly installed at one end of the crank, and the other end of the connecting rod is rotatably installed at the central position of the connecting rod of the roller installation frame. The invention can reduce the feeling of fatigue when people exercise, increase the fun of exercise, and improve the effect of exercise. The shock absorbing spring can reduce the impact of the back supporting plate on the back of the human body and increase the comfort.

Description

An electric sit-up fitness machine

technical field

The invention relates to a body-building mechanical device, in particular to an electric sit-up body-building machine, which belongs to the technical field of body-building equipment.

Background technique

With the improvement of people's living standards, fitness has become a healthy living habit, and more and more fitness equipments have appeared on the market, but most of the fitness equipments are expensive and not suitable for home fitness. Therefore be badly in need of a kind of fitness equipment that is suitable for family use, simple in structure, easy to operate.

Contents of the invention

In view of the above problems, the present invention provides an electric sit-up exercise machine, which is powered by a motor, and is easy to operate and simple in structure.

The technical solution adopted by the present invention is: an electric sit-up fitness equipment, including a base, a back support plate and a back support plate mounting seat, a crank, a connecting rod, a driving wheel, a driven wheel, an electric motor, a crank mounting frame, a belt, two A sleeve and two telescopic sleeves, two rollers and two roller mounting frames, two roller grooves, two foot placement devices, an inclination adjustment frame, and a connecting rod of the roller mounting frame, it is characterized in that: the back The pallet mounting frame is fixedly mounted on the base, the back pallet is hingedly mounted on the back pallet mounting frame; the crank mounting frame is fixedly mounted on the base and is located below the back pallet, the crank and The driven wheels are respectively rotated and installed on both sides of the crank mounting frame through the mounting shaft; the motor is fixedly mounted on the base, and the driving wheel is installed on the motor shaft, and is connected with the driven wheel through a belt; the two roller mounting frames are installed through rollers The two rollers are respectively rotated and installed at the lower part of the two roller mounting frames; the two rollers are respectively rolled and installed in the two roller grooves, and the two roller grooves are respectively fixed and installed on the base; One ends of the two sleeves are respectively fixedly installed on the two roller mounting frames, and the other ends of the two sleeves are respectively slidably installed with two telescopic sleeves, and the other ends of the two telescopic sleeves are respectively hingedly installed At the end of the back pallet away from the back pallet mounting frame; one end of the connecting rod is hingedly installed on one end of the crank, and the other end of the connecting rod is rotatably mounted on the central position of the connecting rod of the roller mounting frame; the tilting adjustment frame is fixed Installed at the end of the base, the upper part of the tilting adjustment frame is provided with a slide rail, and the two foot placement devices are respectively slidably installed on the slide rails on the tilting adjustment frame, and fixed on the tilting adjustment frame by screws.

Further, a handle is provided on the top of the tilt adjustment frame.

Further, a compression spring is arranged between the sleeve and the telescopic sleeve.

Because the present invention adopts the above-mentioned technical scheme, the present invention has the following advantages: the present invention can reduce the feeling of fatigue when people are exercising, increase the fun of exercising, and improve the effect of exercising. Impact on the human back for added comfort.

Description of drawings

Fig. 1 is a schematic diagram of the overall assembled three-dimensional structure of the present invention.

Fig. 2 is a schematic diagram of the overall assembled three-dimensional structure of another angle of the present invention.

Reference numerals: 1-base; 2-back support plate mounting frame; 3-roller groove; 4-roller mounting frame; 5-roller; 6-sleeve; 7-compression spring; 8-telescopic sleeve; 9-roller Mounting frame connecting rod; 10-connecting rod; 11-driving wheel; 12-back support plate; 13-belt; 14-driven wheel; 15-motor; 16-oblique adjustment frame; 17-handle; ; 19-crank mounting bracket; 20-crank; 21-screw; 1601-slide rail.

detailed description

The present invention will be further described below in conjunction with specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

As shown in Fig. 1 and Fig. 2, a kind of electric sit-up fitness apparatus comprises base 1, back supporting plate 12 and back supporting plate mounting frame 2, crank 20, connecting rod 10, driving wheel 11, driven wheel 14, electric motor 15. Crank mount 19, belt 13, two sleeves 6 and two telescopic sleeves 8, two rollers 5 and two roller mounts 4, two roller grooves 3, two foot placers 18, inclined Adjusting frame 16, roller installation frame connecting rod 9. The back supporting board mounting frame 2 is fixedly installed on the base 1, and the back supporting board 12 is hingedly mounted on the back supporting board mounting frame 2. The crank mounting frame 19 is fixedly installed on the base 1 and is located below the back supporting plate 12 . The crank 20 and the driven wheel 14 are respectively rotatably mounted on both sides of the crank mount 19 through the mounting shaft. The motor 15 is fixedly installed on the base 1 , the driving wheel 11 is installed on the main shaft of the motor 15 , and is connected with the driven wheel 14 through the belt 13 . Two roller mounts 4 are connected by a roller mount connecting rod 9, and two rollers 5 are respectively rotated and mounted on the bottoms of the two roller mounts 4. The two rollers 5 are respectively rolled and installed in the two roller grooves 3 . The two roller grooves 3 are fixedly installed on the base 1 respectively. One ends of the two sleeves 6 are respectively fixedly mounted on the two roller mounts 4, and the other ends of the two sleeves 6 are respectively slidably installed with two telescopic sleeves 8, and the other ends of the two telescopic sleeves 8 are respectively It is hingedly installed on the end of the back pallet 12 away from the back pallet mounting frame 2 . One end of the connecting rod 10 is hingedly mounted on one end of the crank 20, and the other end of the connecting rod 10 is rotatably mounted on the central position of the connecting rod 9 of the roller mounting frame. The tilting adjustment frame 16 is fixedly installed on the end of the base 1 , and a slide rail 1601 is arranged on the top of the tilting adjustment frame 16 . The two foot placers 18 are slidably installed on the slide rails 1601 on the tilt adjustment frame 16 respectively, and are fixed on the tilt adjustment frame 16 by screws 21 .

A handle 17 is provided on the top of the tilting adjustment frame 16 . A compression spring 7 is arranged between the sleeve 6 and the telescopic sleeve 8 .

The working principle of the present invention is: when the present invention is in use, at first the user adjusts the height of the foot placement device 18 on the tilting adjustment frame 16 through the screw 21 according to his own exercise habits, then lies on the back supporting plate 12, and simultaneously Start the motor 15, under the drive of the motor 15, drive the crank 20 and the connecting rod 10 in turn, and finally make the two rollers 5 reciprocate in the roller groove 3, and the back supporting plate 12 swings up and down, so as to reduce the fatigue of people when exercising. Fatigue, increase the fun of exercise, and improve the effect of exercise.

Claims (3)

1. a kind of electric sit-ups fitness equipment, including base（1）, back supporting plate（12）With back supporting plate mounting bracket（2）, crank （20）, connecting rod（10）, driving wheel（11）, driven pulley（14）, motor（15）, crank mounting bracket（19）, belt（13）, two sets Cylinder（6）With two extension sleeves（8）, two rollers（5）With two roller mounting brackets（4）, two roller grooves（3）, two pin put Put device（18）, tilting adjustment frame（16）, roller mounting bracket connecting rod（9）, it is characterised in that：Described back supporting plate mounting bracket （2）It is fixedly mounted on base（1）On, described back supporting plate（12）It is hingedly mounted on back supporting plate mounting bracket（2）On；Described Crank mounting bracket（19）It is fixedly mounted on base（1）On, and it is located at back supporting plate（12）Lower section, described crank（20）With it is driven Wheel（14）It is rotatably installed in crank mounting bracket respectively by installation axle（19）Both sides；Described motor（15）It is fixedly mounted on bottom Seat（1）On, motor（15）Driving wheel is installed on main shaft（11）, and pass through belt（13）With driven pulley（14）It is connected；Two Individual roller mounting bracket（4）Pass through roller mounting bracket connecting rod（9）It is connected, two rollers（5）Two rollings are rotatably installed in respectively Take turns mounting bracket（4）Bottom；Two described rollers（5）Roll respectively and be arranged on two roller grooves（3）In, described two rollers Groove（3）It is respectively and fixedly installed to base（1）On；Two described sleeves（6）One end respectively with two roller mounting brackets（4）One by one It is corresponding to be fixedly mounted, two sleeves（6）The other end respectively with two extension sleeves（8）One-to-one corresponding is slidably installed, described Two extension sleeves（8）The other end be respectively articulated with installed in back supporting plate（12）Away from back supporting plate mounting bracket（2）One end； Described connecting rod（10）One end is hingedly mounted on crank（20）One end, connecting rod（10）The other end be rotatably installed in roller installation Frame connecting rod（9）Middle position；Described tilting adjustment frame（16）It is fixedly mounted on base（1）End, tilting adjustment frame（16） Top is provided with slide rail（1601）, described two pin placers（18）Tilting adjustment frame is slidably mounted on respectively（16）On cunning Rail（1601）On, and pass through screw（21）It is fixed on tilting adjustment frame（16）On.

A kind of 2. electric sit-ups fitness equipment as claimed in claim 1, it is characterised in that：Described tilting adjustment frame（16） Top is provided with handle（17）.

A kind of 3. electric sit-ups fitness equipment as claimed in claim 1, it is characterised in that：Described sleeve（6）With it is flexible Sleeve（8）Between be provided with compression spring（7）.