CN211635084U - Adjustable sit-up device for body building - Google Patents

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

An adjustable sit-up device for fitness

technical field

The utility model relates to a fitness equipment, in particular to an adjustable sit-up device for fitness.

Background technique

With the change of people's living conditions and life pursuits, fitness has become the normal state of people, and fitness equipment has gradually appeared in people's daily life, providing people with a variety of ways to exercise, and can exercise various parts of the body. As a way of exercising the abdominal muscles, the iliopsoas, the hip flexor and the quadratus lumborum on the back side, it is essential to have fitness equipment to realize the exercise of the sit-up; the sit-up equipment in the prior art The function is simple, and the exercise part is relatively simple; the weaker person may not be able to get up after lying down, because the physical characteristics of each person are different, the device parts are not suitable for all people.

Utility model content

In view of the above-mentioned situation, in order to overcome the defects of the prior art, the utility model provides an adjustable sit-up device for fitness, which adds more exercise devices, so that it can not only perform sit-ups, but also increases the number of exercise hands. In order to meet the needs of different people and reduce obstacles, the height of the added parts of the exercise device can be adjusted. Because of the difference in physique, the angle of crunches and lying down can be adjusted in multiple gears.

Its technical solution is, an adjustable sit-up device for fitness, comprising a lateral support rod, the left end of the lateral support rod is connected with a vertical support rod placed obliquely, and the upper end is connected with a bench, characterized in that the vertical support rod is A foot support body is connected to the left side of the support rod, and the left side of the foot support body is connected with two sets of front and rear symmetrical snap rings, an arc-shaped sliding rod is respectively sleeved in the snap rings, and one end of the sliding rod is connected to the shoe shell , the bottom of the vertical support rod is fixedly connected to the leg fixing frame and is located under the shoe shell, and the front and rear sides of the lateral support rod are respectively connected with a group of hand exercise devices;

The hand movement device includes two sets of limit rods arranged at horizontal intervals and longitudinally connected to the lateral support rods, and also includes an L-shaped adjustment block, and the adjustment blocks are vertically spaced between multiple groups and two groups The adjustment hole for the longitudinal sliding fit of the limit rod, one of the limit rod is connected with a limit ring, and the end of the other limit rod is threaded with a limit nut to meet the requirements of the limit ring and the limit nut to match the limit adjustment block. Longitudinal movement, a horizontally placed hand support body is fixedly connected in the adjustment block, a threaded rod with reverse threads at both ends is rotated longitudinally in the hand support body, and both ends of the threaded rod are respectively threadedly connected with a longitudinal sliding fit The moving block on the hand support body, the right end of the hand support body is provided with a longitudinally arranged sliding groove, and two sets of symmetrically distributed damping wheels are slidably fitted in the sliding groove, and the right end of the adjustment block is provided with a fixing hole The upper end of the hand support body is laterally connected to a hand grip that slides through the fixing hole on the adjusting block, and the hand grip is in contact with the two sets of the damping wheels to meet the requirements of the two sets of moving blocks. Longitudinal movement can adjust the tightening force of the two sets of damping wheels on the hand grip;

An arc-shaped support column is fixedly connected to the right side of the lateral support rod, and one end of the arc-shaped support column is rotatably connected to the backrest. A driving pin is slidably fitted inside, a spring is fixedly connected between the upper end of the T-shaped groove and the driving pin, the driving pin is connected with a connecting rod arranged along the length of the T-shaped groove, and the other end of the connecting rod is connected with a bayonet The arc-shaped support column is fixedly connected with a chuck coaxially arranged with the backrest rotating shaft, and the upper outer edge of the chuck has a plurality of groups of card slots matched with the card pins evenly distributed along the circumferential direction.

Preferably, the curvature of the side wall of the inner hole of the snap ring is concentric with the arc-shaped sliding rod.

Preferably, a shoe cover is slidably connected up and down inside the shoe shell, a side hole for installing an adjustable elastic band is opened on the side wall of the shoe cover, and the upper end of the shoe cover is installed with a buckle 1 and a buckle 2 to cooperate and tighten. Elastic band.

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

Preferably, the shape of the backrest is similar to the human spine.

Preferably, the arc-shaped support column is provided with an arc-shaped groove for matching with the backrest.

The beneficial effects of the utility model are: (1) leg and hand exercise devices are added, which enriches the functionality of the sit-up device; (2) due to the different lengths of the legs and hands of users, the height can be adjusted ; (3) Crunches can be adjusted in multiple gears to suit different needs; (4) Multi-functions are gathered in the same device, saving space; (5) Saving resources and reducing costs.

Description of drawings

Fig. 1 is the overall schematic diagram of the utility model.

Figure 2 is a front view of the utility model.

Figure 3 is a top view of the utility model.

Figure 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 fitting diagram of the hand motion damping part of the present invention.

FIG. 7 is a schematic diagram of the hand movement device and the foot movement of the present invention.

Figure 8 is a schematic diagram of the foot movement of the present invention.

FIG. 9 is a diagram showing the movement of the foot section of the utility model.

Figure 10 is a cross-sectional view of the foot movement of the present invention.

Figure 11 is a schematic diagram of the rotation of the backrest of the present invention.

FIG. 12 is a schematic diagram of the backrest of the utility model being rotated and laid flat.

reference number

1. Horizontal support rod, 2. Vertical support rod, 3. Stool, 4. Foot support, 5. Snap ring, 6. Sliding rod, 7. Shoe shell, 8. Leg holder, 9. Hand Motion device, 10. Moving block, 11. Threaded rod, 12. Hand support, 13. Sliding groove, 14. Damping wheel, 15. Hand grip, 16. Adjusting block, 17. Fixing hole, 18. Adjustment hole, 19. Arc support column, 20. Backrest, 21. T-slot, 22. Drive pin, 23. Spring, 24. Card slot, 25. Shoe cover, 26. Rubber cover, 27. Buckle one, 28. Buckle II, 29. Connecting rod, 30. Bayonet, 31. Chuck, 32. Limit rod, 33. Limit ring, 34. Limit nut.

Detailed ways

The specific embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings 1-12.

In the first embodiment, the technical solution is to include a lateral support rod 1, the left end of the lateral support rod 1 is connected to a vertical support rod 2 placed obliquely, and the upper end is connected to a stool 3, characterized in that the vertical support rod 2. The left side is connected to the foot support body 4, and the left side of the foot support body 4 is connected to two sets of snap rings 5 that are symmetrical in the front and rear. One end is connected to the shoe shell 7, and the bottom of the vertical support rod 2 is fixedly connected to the leg fixing frame 8 and is located under the shoe shell 7. During the entire movement process of the foot, the foot extends into the shoe shell 7 to fix the calf, and the foot is slow. Carrying the sliding rod 6 to reciprocate in the snap ring 5, when the sliding rod 6 moves in the snap ring 5, the strength of the foot movement is increased through resistance, and due to the difference in the length of the user's legs, any position can be performed. The top of the sliding rod 6 is equipped with a limit block to prevent the limit block from falling off the snap ring 5. The arc shape of the sliding rod 6 is consistent with the movement arc, which is more ergonomic;

The front and rear sides of the lateral support rod 1 are respectively connected with a group of hand movement devices 9. The hand movement device 9 includes two sets of limit rods 32 arranged at horizontal intervals and connected to the lateral support rod 1 along the longitudinal direction, and also includes a set of limit rods 32. L-shaped adjustment block 16, the adjustment block 16 is vertically spaced with a plurality of sets of adjustment holes 18 that are longitudinally slidably matched with the two sets of limit rods 32, wherein a limit rod 32 is connected to a limit ring 33, The end of the other limit rod 32 is threadedly matched with a limit nut 34, so that the limit ring 33 and the limit nut 34 cooperate to limit the longitudinal movement of the adjustment block 16. When the adjustment block 16 is radially coaxial with the limit rod 32 During mating, in order to prevent the adjustment block 16 from moving on the limit rod 32 at will, the limit ring 33 is installed to limit the position. The length from one end of the limit rod 32 to the side wall, this length can not only ensure the installation space of the limit ring 33, but also provide a guarantee for the cooperation of the limit nut 34 and the limit rod 32, through the limit ring 33 and the limit hole The matching of the screw threads limits the free movement of the adjustment block 16, and the vertical height of the entire hand movement device 9 and the lateral support rod 1 can only be adjusted through the adjustment hole 18; the adjustment block 16 is fixedly connected to the horizontally placed hand. A support body 12, a threaded rod 11 with reverse threads at both ends is rotated longitudinally in the hand support body 12, and two ends of the threaded rod 11 are respectively threadedly connected to a moving block that is longitudinally slidably fitted on the hand support body 12 10. The right end of the hand support body 12 is provided with a longitudinally arranged sliding groove 13. The sliding groove 13 is slidably fitted with two sets of symmetrically distributed damping wheels 14. The right end of the adjusting block 16 is provided with a fixing hole 17, so The upper end of the hand support body 12 is laterally connected to the hand grip 15 that slides through the fixing hole 17 on the adjusting block 16, and the hand grip 15 is in contact with the two groups of the damping wheels 14, so as to satisfy the two requirements. The longitudinal movement of the group of moving blocks 10 can adjust the tightening force of the two groups of damping wheels 14 on the hand grip 15. During this process, the two ends of the threaded rod 11 are threaded in opposite directions, which ensures that the moving blocks 10 move in the opposite direction synchronously, thereby ensuring that When the threaded rod 11 is rotated to drive the moving block 10 to move, the damping wheel 14 can move synchronously in the sliding groove 13, and the gap between the two groups of damping wheels 14 is always located in the middle of the hand grip 15. To increase and decrease, adjust the tightening force of the hand grip 15 and the damping wheel 14, so that the user can choose the difficulty mode;

An arc-shaped support column 19 is fixedly connected to the right side of the lateral support rod, and one end of the arc-shaped support column 19 is rotatably connected to the backrest 20 . A driving pin 22 is slidably fitted 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, and the driving pin 22 is connected to a connecting rod 29 arranged along the length of the T-shaped groove. , the other end of the connecting rod 29 is connected with a pin 30, the arc-shaped support column 19 is fixedly connected with a chuck 31 coaxially arranged with the rotation axis of the backrest 20, and the upper outer edge of the chuck 31 is along the There are a plurality of groups of card slots 24 that are evenly distributed in the circumferential direction, and the end of the drive pin 22 that matches the T-shaped slot 21 is a T-shaped block, which prevents the drive pin 22 from falling from the T-shaped slot 21. The spring 23 provides an active area for the driving pin 22 and plays an auxiliary role. Through the sliding of the driving pin 22 in the T-shaped groove 21, the connecting rod 29 and the locking pin 30 are driven to realize the locking groove on the locking pin 30 and the chuck 31. The disengagement and meshing of the backrest 24 can realize the adjustment of the backrest 20. The multiple sets of card slots 24 provide more height options for the fixing of the backrest 20, which can allow the backrest 20 to rotate within 0°-90°, which is also useful for lying on the back. Sitting offers different levels of exercise from easy to difficult.

Embodiment 2, on the basis of Embodiment 1, the arc of the inner hole of the snap ring 5 is coaxial with the arc-shaped sliding rod 6, and this arrangement ensures the feasibility of the entire movement of the foot.

Embodiment 3, on the basis of Embodiment 1, a shoe cover 25 is slidably connected up and down in the shoe shell 7, the side wall of the shoe cover 25 is provided with a side hole for installing an adjustable elastic band, and the upper end of the shoe cover 25 is installed with a shoe cover 25. The elastic belt shoe cover 25 that is tightened by the cooperation of the buckle one 27 and the buckle two 28 reduces the friction on the foot, and the elastic belt can adjust the elasticity freely. For fixing, it is not only firm but also can be adjusted for tightness.

Embodiment 4, on the basis of Embodiment 1, the damping wheel 14 is covered with a rubber sleeve 26 for increasing the damping. The rubber sleeve 26 increases the damping motion of the hand grip 15 and reduces the loss.

Embodiment 5, on the basis of Embodiment 1, the shape of the backrest 20 is similar to the human spine, which reduces the damage to the human body, and makes people more comfortable when doing sit-ups.

Embodiment 6, on the basis of Embodiment 1, the arc-shaped support column 19 has 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 in use, the connecting rod 29 and the locking pin 30 are driven by the driving pin 22 to realize the disengagement and engagement of the locking pin 30 and the locking groove 24, and then adjust the angle of the backrest 20 and the arc-shaped support column 19. When sitting, you can choose from simple to difficult. The added leg exercise device can achieve the purpose of exercise by fixing the foot in the shoe shell 7 and driving the arc sliding rod 6 to move in the snap ring 5; and the hand exercise device 9 is that the hand grip 15 slides between the damping wheels 14 to realize the reciprocating motion of the hand, wherein the threaded rods 11 with opposite directions at both ends can realize the synchronous but opposite movement of the two groups of moving blocks 10, thereby adjusting the two groups of damping The gaps between the wheels 14 provide different tightening forces for the hand grips 15, and the hand exercise device 9 can also be adjusted in multiple heights to suit different groups of people.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the scope of protection of the present invention.

Claims (6)

1. An adjustable sit-up device for fitness, comprising a lateral support rod (1), the left end of the lateral support rod (1) is connected to an inclined vertical support rod (2), and the upper end is connected to a bench (3), It is characterized in that the left side of the vertical support rod (2) is connected to the foot support body (4), the left side of the foot support body (4) is connected to two sets of front and rear symmetrical snap rings (5). An arc-shaped sliding rod (6) is respectively sleeved in the ring (5), one end of the sliding rod (6) is connected to the shoe shell (7), and the lower part of the vertical support rod (2) is fixedly connected to the leg fixing frame (8). ) and is located below the shoe shell (7), the front and rear sides of the lateral support rod (1) are respectively connected with a group of hand movement devices (9); The hand movement device (9) comprises two sets of limit rods (32) arranged at horizontal intervals and longitudinally connected to the lateral support rod (1), and also comprises an L-shaped adjustment block (16), the adjustment The block (16) is vertically spaced with a plurality of sets of adjustment holes (18) which are longitudinally slidably matched with the two sets of limit rods (32), wherein one limit rod (32) is connected with a limit ring (33), and the other The end of a limit rod (32) is threaded with a limit nut (34), so that the limit ring (33) and the limit nut (34) cooperate to limit the longitudinal movement of the adjustment block (16). The adjustment block ( 16) The hand support body (12) placed horizontally is fixedly connected internally, and a threaded rod (11) with reverse threads at both ends is rotated longitudinally inside the hand support body (12). The ends are respectively screwed to a moving block (10) which is longitudinally slidably fitted on the hand support body. The right end of the hand support body (12) is provided with a longitudinally arranged sliding groove (13). Two sets of symmetrically distributed damping wheels (14) are slidably matched, a fixing hole (17) is formed at the right end of the adjusting block (16), and the upper end of the hand support body (12) is laterally connected to slide through the adjusting block (16). The hand grip (15) of the fixing hole (17) on the Longitudinal movement can adjust the tightening force of the two sets of damping wheels (14) on the hand grip (15); An arc-shaped support column (19) is fixedly connected to the right side of the lateral support rod (1), one end of the arc-shaped support column (19) is rotatably connected to the backrest (20), and the front side of the backrest (20) is provided with an edge A T-shaped groove (21) radially arranged on the rotating shaft of the backrest (20), a driving pin (22) is slidably fitted in the T-shaped groove (21), and the upper end of the T-shaped groove (21) and the driving pin (22) are fixed between A spring (23) is connected, the drive pin (22) is connected to a connecting rod (29) arranged along the length of the T-slot (21), and the other end of the connecting rod (29) is connected to a bayonet (30) ), a chuck (31) coaxially arranged with the rotating shaft of the backrest (20) is fixedly connected to the arc-shaped support column (19), and the upper and outer edges of the chuck (31) are evenly distributed with multiple groups along the circumferential direction. The card slot (24) matched with the card pin (30). 2 . The adjustable sit-up device for fitness according to claim 1 , wherein the arc of the side wall of the inner hole of the snap ring ( 5 ) is concentric with the arc-shaped sliding rod ( 6 ). 3 . 3. The adjustable sit-up device for fitness according to claim 1, characterized in that a shoe cover (25) is slidably connected up and down inside the shoe shell (7), and the shoe cover (25) side is The wall is provided with side holes for installing adjustable elastic bands, and the upper end of the shoe cover (25) is installed with an elastic band that is tightened through the cooperation of the first buckle (27) and the second buckle (28). 4. The adjustable sit-up device for fitness according to claim 1, wherein a rubber sleeve (26) for increasing damping is sleeved on the damping wheel (14). 5 . The adjustable sit-up device for fitness according to claim 1 , wherein the shape of the backrest ( 20 ) is similar to that of the human spine. 6 . 6 . The adjustable sit-up device for fitness according to claim 1 , wherein the arc-shaped support column ( 19 ) has an arc-shaped groove for matching with the backrest ( 20 ). 7 .

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