CN211635084U

CN211635084U - Adjustable sit-up device for body building

Info

Publication number: CN211635084U
Application number: CN202020090873.7U
Authority: CN
Inventors: 李翠红; 杨温豪; 张磊; 兰庆士
Original assignee: Zhengzhou University of Science and Technology
Current assignee: Zhengzhou University of Science and Technology
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-09
Anticipated expiration: 2030-01-16

Abstract

The utility model provides an adjustable sit-up device for body building, which effectively solves the problems of simple function and single exercise position of sit-up equipment in the prior art; the problems that people with weak bodies can not get up after lying down, the body characteristics of each person are different, and the height and the angle of the device part are not suitable for all people are solved; the technical scheme includes that leg and hand motion devices are added, wherein the leg motion devices are in sliding fit with clamping rings through sliding rods to achieve reciprocating motion of feet, the hand motion devices can achieve height adjustment of the whole device through matching of adjusting holes and limiting rods, threaded rods with reverse threads at two ends drive moving blocks to be far away from or push damping wheels, and resistance between hand grab handles and the damping wheels is reduced or increased; the drive round pin slides in the T type groove of back and realizes breaking away from and the meshing of bayonet lock and draw-in groove, reaches the purpose of back angle modulation, the utility model discloses simple structure, the function is various, easy operation, and the practicality is strong.

Description

Adjustable sit-up device for body building

Technical Field

The utility model relates to a body-building apparatus, in particular to an adjustable sit-up device for body-building.

Background

Along with the change of the living state and the pursuit of life of people, the body building becomes the normal state of people, the body building equipment also gradually appears in the daily life of people, a plurality of ways are provided for the exercise of people, the exercise of all parts of the body can be carried out, wherein the sit-up is taken as a movement way for exercising abdominal muscles, ilium and lumbus muscles, hip bending muscles and dorsal lumbus and quadratus, and the exercise of the sit-up is realized by the indispensable appearance of the body building equipment; in the prior art, the sit-up apparatus has simple functions and single exercise part; a person with a weak body may also have a tendency to fall down, because the device parts are not suitable for the whole population due to the different physical characteristics of each person.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an adjustable sit-up device for body building, which is added with more exercise devices, thereby realizing sit-up and adding devices for exercising hands and legs; in order to adapt to the requirements of different people and reduce the obstruction, the height of the increased part of the sports device can be adjusted, and the angle of the sit-up lying down can be adjusted by a plurality of gears due to different constitutions.

The adjustable sit-up device for body building comprises a transverse supporting rod, wherein the left end of the transverse supporting rod is connected with a vertical supporting rod which is obliquely arranged, and the upper end of the transverse supporting rod is connected with a sitting stool;

the hand motion device comprises two groups of limiting rods which are transversely arranged at intervals and are longitudinally connected with the transverse supporting rods, and an L-shaped adjusting block, wherein the adjusting block is vertically provided with a plurality of groups of adjusting holes which are longitudinally matched with the two groups of limiting rods in a sliding way, one limiting rod is connected with a limiting ring, the end part of the other limiting rod is in threaded fit with a limiting nut, the limiting ring and the limiting nut are matched to limit the longitudinal movement of the adjusting block, the adjusting block is internally and fixedly connected with a transversely arranged hand support body, a threaded rod with two reverse threads at two ends is longitudinally rotated in the hand support body, two ends of the threaded rod are respectively in threaded connection with a moving block which is longitudinally matched with the hand support body in a sliding way, the right end of the hand support body is provided with a longitudinally arranged sliding groove, the sliding grooves are in sliding fit with two groups of damping wheels which are symmetrically distributed, and the, the upper end of the hand supporting body is transversely connected with a hand grab handle which is slidably arranged through a fixing hole in the adjusting block, the hand grab handle is in contact fit with the two groups of damping wheels, and the requirement that the longitudinal movement of the two groups of moving blocks can adjust the tightening force of the two groups of damping wheels on the hand grab handle is met;

horizontal bracing piece right side fixed connection is opened there is the arc support column, arc support column one end is rotated and is connected the back, the back front side is opened there is one along the radial T type groove that sets up of back pivot, a T type inslot sliding fit drives a round pin, a fixed connection spring between T type inslot end and the drive round pin, the drive round pin is connected one along the connecting rod that T type groove length direction set up, the other end of connecting rod connect a bayonet lock, the arc support column on a fixed connection with the coaxial chuck that sets up of back pivot, the chuck on outward flange open along circumference equipartition have multiunit and bayonet lock matched with draw-in groove.

Preferably, the radian of the side wall of the inner hole of the clamping ring is coaxial with the arc-shaped sliding rod.

Preferably, a shoe cover is connected in the shoe shell in an up-and-down sliding manner, side holes for installing adjustable elastic bands are formed in the side wall of the shoe cover, and the elastic bands which are tightened by matching the first buckle and the second buckle are installed at the upper end of the shoe cover.

Preferably, the damping wheel is sleeved with a rubber sleeve for increasing damping.

Preferably, the backrest is shaped like a human spine.

Preferably, the arc-shaped supporting column is provided with an arc-shaped groove used for being matched with the backrest.

The utility model has the advantages that: (1) leg and hand exercise devices are added, and the functionality of the sit-up device is enriched; (2) the height of the user can be adjusted due to the different lengths of the legs and the hands of the user; (3) the sit-up can be adjusted in multiple steps so as to be suitable for different requirements; (4) the multiple functions are gathered in the same device, so that the space is saved; (5) saves resources and reduces the cost.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a diagram of the hand exercise device of the present invention.

Fig. 5 is a top view of the hand exercise device of the present invention.

Fig. 6 is a diagram showing the hand motion damping position of the present invention.

Fig. 7 is a schematic view of the hand exercise device and foot exercise device of the present invention.

Fig. 8 is a schematic view of the foot movement of the present invention.

Fig. 9 is a view showing the motion of the cut-open part of the present invention.

Fig. 10 is a sectional view showing the movement of the foot according to the present invention.

Fig. 11 is a schematic view of the backrest of the present invention.

Fig. 12 is a schematic view of the backrest of the present invention being rotated and laid flat.

Reference numerals

1. The novel shoe comprises a transverse supporting rod, 2 vertical supporting rods, 3 a seat, 4 a foot supporting body, 5 a clamping ring, 6 a sliding rod, 7 a shoe shell, 8 a leg fixing frame, 9 a hand movement device, 10 a moving block, 11 a threaded rod, 12 a hand supporting body, 13 a sliding groove, 14 a damping wheel, 15 a hand grab handle, 16 an adjusting block, 17 a fixing hole, 18 an adjusting hole, 19 an arc-shaped supporting column, 20 a backrest, 21 a T-shaped groove, 22 a driving pin, 23 a spring, 24 a clamping groove, 25 a shoe cover, 26 a rubber sleeve, 27 a first buckle, 28 a second buckle, 29 a connecting rod, 30 a clamping pin, 31 a clamping disc, 32 a limiting rod, 33 a limiting ring and 34 a limiting nut.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 12.

The first embodiment adopts the technical scheme that the first embodiment comprises a transverse supporting rod 1, wherein the left end of the transverse supporting rod 1 is connected with a vertical supporting rod 2 which is obliquely arranged, and the upper end of the transverse supporting rod is connected with a stool 3, the left side of the vertical supporting rod 2 is connected with a foot supporting body 4, the left side of the foot supporting body 4 is connected with two groups of snap rings 5 which are symmetrical front and back, an arc-shaped sliding rod 6 is sleeved in each snap ring 5, one end of each sliding rod 6 is connected with a shoe shell 7, a leg fixing frame 8 is fixedly connected below the vertical supporting rod 2 and is positioned below the shoe shell 7, a foot extends into the shoe shell 7 in the whole foot movement process to fix a shank, the foot slowly drives the sliding rods 6 to reciprocate in the snap rings 5, the strength of the foot movement is increased through resistance when the sliding rods 6 move in the snap rings 5, and the stop at any position can be carried out due to the, the sliding rod 6 is provided with a limiting block at the top to prevent the limiting block from falling off the snap ring 5, and the sliding rod 6 is arc-shaped and consistent with the motion radian, so that the sliding rod is more in line with ergonomics;

a set of hand motion device 9 is connected respectively to both sides around the horizontal bracing piece 1, hand motion device 9 includes that horizontal interval sets up and along two sets of gag lever post 32 on the vertical connection horizontal bracing piece 1, still include the regulating block 16 of an L shape, regulating block 16 along vertical interval division have multiunit and two sets of gag lever post 32 longitudinal sliding fit's regulation hole 18, connect a spacing ring 33 on one of them gag lever post 32, the tip screw thread of another gag lever post 32 cooperates a stop nut 34, satisfy the longitudinal movement of spacing ring 33 and stop nut 34 cooperation restriction regulating block 16, when regulating block 16 and gag lever post 32 are radial coaxial to cooperate, in order to prevent that regulating block 16 from moving on gag lever post 32 at will, installation spacing ring 33 has played the limiting displacement, on the other hand, gag lever post 32 both ends screw thread length is greater than the thickness of regulating block 16 itself, but is less than the length of gag lever post 32 one end to lateral wall, the length can ensure the installation space of the limiting ring 33, and also provides a guarantee for the matching of the limiting nut 34 and the limiting rod 32, the random movement of the adjusting block 16 is limited through the threaded matching of the limiting ring 33 and the limiting hole, and the vertical height of the whole hand movement device 9 and the transverse supporting rod 1 can be adjusted only through the adjusting hole 18; the adjusting block 16 is internally and fixedly connected with a transversely placed hand supporting body 12, a threaded rod 11 with reverse threads at two ends is longitudinally rotated in the hand supporting body 12, two ends of the threaded rod 11 are respectively in threaded connection with a moving block 10 which is longitudinally matched with the hand supporting body 12 in a sliding manner, a sliding groove 13 which is longitudinally arranged is formed at the right end of the hand supporting body 12, two groups of damping wheels 14 which are symmetrically distributed are in sliding fit in the sliding groove 13, a fixing hole 17 is formed at the right end of the adjusting block 16, the hand holding handle 15 which is transversely connected with the upper end of the hand supporting body 12 and penetrates through the fixing hole 17 in the adjusting block 16 in a sliding manner is in contact fit with the two groups of damping wheels 14, the requirement that the two groups of moving blocks 10 longitudinally move to adjust the tightening force of the two groups of damping wheels 14 on the hand holding handle 15 is met, and the threads in opposite directions are formed at two ends of, the synchronous opposite movement of the moving blocks 10 is ensured, so that when the moving blocks 10 are driven to move by rotating the threaded rods 11, the damping wheels 14 can synchronously move in opposite directions in the sliding grooves 13, the gap between the two groups of damping wheels 14 is ensured to be always positioned in the middle of the hand grab handle 15, and the tightening force between the hand grab handle 15 and the damping wheels 14 is adjusted by increasing and reducing the gap between the damping wheels 14, so that a user can select a difficulty mode;

horizontal bracing piece right side fixed connection is opened there is

arc support column

19, 19 one end of arc support column is rotated and is connected back 20, open 20 front side of back has one along the radial T type groove 21 that sets up of back 20 pivot, sliding fit one drives round pin 22 in the T type groove 21, a fixed connection spring 23 between T type groove 21 upper end and the drive round pin 22, drive round pin 22 connects one along the connecting rod 29 that T type groove length direction set up, the other end of connecting rod 29 connect a bayonet lock 30, arc support column 19 on one fixed connection with the chuck 31 of the coaxial setting of back 20 pivot, chuck 31 go up the outward flange along circumference equipartition open have multiunit and bayonet lock 30 matched with draw-in groove 24, wherein drive round pin 22 and T type groove 21 complex tip are T type piece, prevented like this that drive round pin 22 from dropping from T type groove 21, spring 23 provides movable interval for drive round pin 22, play the auxiliary action, through the slip of drive pin 22 in T type groove 21, drive connecting rod 29 and bayonet lock 30, realize bayonet lock 30 and the draw-in groove 24 on the chuck 31 break away from and the meshing, and then realize the regulation to back 20, multiunit draw-in groove 24 provides more height choices for the fixed of back 20, can let back 20 at 0-90 internal rotation, also provides from easy to difficult exercise of different degrees for carrying out the sit up person.

In the second embodiment, on the basis of the first embodiment, the radian of the side wall of the inner hole of the clamping ring 5 is coaxial with the arc-shaped sliding rod 6, and the arrangement ensures the feasibility of the whole motion of the foot.

Third embodiment, on the basis of first embodiment, a shoe cover 25 of upper and lower sliding connection in the shoe shell 7, the side opening of the adjustable elastic cord of installation is seted up to shoe cover 25 lateral wall, the elastic cord shoe cover 25 that tightens through the cooperation of buckle one 27 and buckle two 28 is installed to shoe cover 25 upper end has reduced the friction to the foot, and the elastic cord can carry out the free adjustment to the elasticity, and the elastic cord of shoe shell 7 upper end is fixed through the mode similar to the safety belt buckle, not only firmly still can carry out the elasticity and adjust.

In the fourth embodiment, on the basis of the first embodiment, the rubber sleeve 26 for increasing the damping is sleeved on the damping wheel 14, and the rubber sleeve 26 increases the damping motion of the hand grip 15 and reduces the loss of the damping wheel 14.

Fifth, on the basis of the first embodiment, the shape of the backrest 20 is similar to the shape of the spine of a human body, so that the injury to the human body is reduced, and the human body is more comfortable in doing sit-ups.

In the sixth embodiment, on the basis of the first embodiment, the arc-shaped supporting column 19 is provided with an arc-shaped groove for matching with the backrest 20, and the arc-shaped groove provides a space for the backrest 20 to be placed gently.

When the utility model is used, the connecting rod 29 and the bayonet lock 30 are driven by the driving pin 22, so that the bayonet lock 30 is separated from and meshed with the clamping groove 24, and further the angle between the backrest 20 and the arc-shaped supporting column 19 is adjusted, so that the simple and difficult selection can be carried out when doing sit-ups, and the added leg exercise device drives the arc-shaped sliding rod 6 to move in the snap ring 5 by fixing feet in the shoe shell 7, thereby achieving the purpose of exercise; and hand motion device 9 lies in hand grab handle 15 and slides between damping wheel 14, realizes the reciprocating motion of hand, and wherein the threaded rod 11 that both ends have opposite direction can realize two sets of movable blocks 10 synchronous but motion in opposite directions to adjust the clearance between two sets of damping wheels 14, provide different tightening force for hand grab handle 15, hand motion device 9 can also carry out a plurality of height control, in order to be applicable to different crowds.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable sit-up device for body building comprises a transverse supporting rod (1), wherein the left end of the transverse supporting rod (1) is connected with a vertical supporting rod (2) which is obliquely arranged, and the upper end of the transverse supporting rod is connected with a sitting stool (3), and is characterized in that the left side of the vertical supporting rod (2) is connected with a foot supporting body (4), the left side of the foot supporting body (4) is connected with two groups of snap rings (5) which are symmetrical front and back, an arc-shaped sliding rod (6) is sleeved in each snap ring (5), one end of each sliding rod (6) is connected with a shoe shell (7), a leg fixing frame (8) is fixedly connected below the vertical supporting rod (2) and is positioned below the shoe shell (7), and a group of hand movement devices (9) are respectively connected with the front side;

the hand motion device (9) comprises two groups of limiting rods (32) which are transversely arranged at intervals and longitudinally connected with the transverse support rod (1) and an L-shaped adjusting block (16), wherein the adjusting block (16) is vertically provided with a plurality of groups of adjusting holes (18) which are longitudinally matched with the two groups of limiting rods (32) in a sliding manner, one limiting rod (32) is connected with a limiting ring (33), the end part of the other limiting rod (32) is matched with a limiting nut (34) in a threaded manner to meet the requirement that the limiting ring (33) and the limiting nut (34) are matched to limit the longitudinal movement of the adjusting block (16), the adjusting block (16) is internally and fixedly connected with a transversely placed hand support body (12), a threaded rod (11) with two ends being reverse threads is longitudinally rotated in the hand support body (12), the two ends of the threaded rod (11) are respectively in threaded connection with a moving block (10) which is longitudinally matched with the hand support body in a sliding, the hand support body (12) is provided with a sliding groove (13) which is longitudinally arranged at the right end, the sliding groove (13) is in sliding fit with two groups of damping wheels (14) which are symmetrically distributed, the right end of the adjusting block (16) is provided with a fixing hole (17), the upper end of the hand support body (12) is transversely connected with a hand grab handle (15) which is slidably arranged in the fixing hole (17) of the adjusting block (16), the hand grab handle (15) is in contact fit with the two groups of damping wheels (14), and the requirement that the two groups of damping wheels (14) can adjust the tightening force of the two groups of damping wheels (14) on the hand grab handle (15) due to the longitudinal movement of the two groups of moving blocks;

the right side of the transverse supporting rod (1) is fixedly connected with an arc-shaped supporting column (19), one end of the arc-shaped supporting column (19) is rotatably connected with a backrest (20), a T-shaped groove (21) which is radially arranged along the rotating shaft of the backrest (20) is formed in the front side of the backrest (20), a driving pin (22) is in sliding fit in the T-shaped groove (21), a spring (23) is fixedly connected between the upper end of the T-shaped groove (21) and the driving pin (22), the driving pin (22) is connected with a connecting rod (29) arranged along the length direction of the T-shaped groove (21), the other end of the connecting rod (29) is connected with a bayonet (30), the arc-shaped supporting column (19) is fixedly connected with a chuck (31) which is coaxially arranged with the rotating shaft of the backrest (20), the outer edge of chuck (31) along circumference equipartition open multiunit and bayonet lock (30) matched with draw-in groove (24).

2. The adjustable sit-up apparatus for fitness according to claim 1, wherein the radian of the inner hole side wall of the snap ring (5) is coaxial with the arc-shaped sliding rod (6).

3. The adjustable sit-up apparatus for fitness according to claim 1, wherein a shoe cover (25) is slidably connected with the shoe shell (7) up and down, side holes for installing adjustable elastic bands are formed in the side wall of the shoe cover (25), and the elastic bands tightened by matching a first buckle (27) and a second buckle (28) are installed at the upper end of the shoe cover (25).

4. The adjustable sit-up apparatus for fitness according to claim 1, wherein the damping wheel (14) is sleeved with a rubber sleeve (26) for increasing damping.

5. The adjustable sit-up apparatus for fitness according to claim 1, wherein the backrest (20) is shaped like the spine of a human body.

6. An adjustable sit-up apparatus for fitness according to claim 1, wherein the arc-shaped support post (19) is provided with an arc-shaped slot for cooperation with the backrest (20).