Cervical vertebra protective sit-up exercise device
Technical field
The present invention relates to a kind of sit-ups Special training device tool, specifically a kind of cervical vertebra protective sit-up exercise
Device.
Background technique
Sit-ups are can to make to be certainly by sit-ups training to waist, the very effective exercising way in abdomen position
Oneself stature is more perfect, in order to improve training effect, has had already appeared in the market diversified dedicated for sit-ups
Exercising device, although supplemental training can be played by being performed physical exercise using exercising device, thus reach improve training effect mesh
, but when being performed physical exercise using traditional sit-up trainer material, it usually needs both hands embrace head, and cervical traction drives forward
Body kinematics, in the process, on the one hand, existing exercising device neck supporting plate is fixed in use, this nothing
Doubting will cause damage to cervical vertebra, and another further aspect waist inanition equally causes waist to damage to a certain degree, in addition a side without support
Face, existing exercising device can only temper waist, abdomen position cannot temper pectoralis major, so that having a single function.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind to be not only able to protection cervical vertebra and waist, additionally it is possible to it is big to temper chest
The cervical vertebra protective sit-up exercise device of flesh.
In order to solve the above-mentioned technical problem, cervical vertebra protective sit-up exercise device of the invention, including horizontally disposed master lie
The leg fixing end of main lying board frame rear end is arranged in grillage, and the front end of main lying board frame is hinged with one can be past around hinge joint
Physical pendulum dynamic upper body supporting board carriage is provided with slidable adjustment structure on upper body supporting board carriage, sets on upper body supporting board carriage
It is equipped with the neck hook plate for being pressed over trainer's neck shoulders, neck hook plate can pass through upper body supporting board carriage
Slidable adjustment structure front and back within the scope of sliding distance moves back and forth, to match the trainer of different heights and in training process
In make the neck hook plate neck shoulders free to slide for remaining at trainer.
The upper body supporting board carriage is a round tube, and the lower end of the round tube is hinged on main lying board frame by shaft,
The slidable adjustment structure is the top shoe covered on upper body supporting board carriage, and the neck hook plate is mounted on by top shoe
On upper body supporting board carriage.
Neck hook plate is movably arranged on upper body supporting board carriage and can swing on upper body supporting board carriage.
The neck hook plate includes the fixed plate being fixedly connected with top shoe and is mounted on by shaft and bearing solid
Movable plate on fixed board, the movable plate can be rotated along shaft opposing fixed plate.
One piece of waist that can be moved back and forth on upper body supporting board carriage is arranged in the bottom of the upper body supporting board carriage
Supporting plate.
Pectoralis major exerciser is fixedly installed on the upper body supporting board carriage, the pectoralis major exerciser includes main branch
Frame, the opening slot being connected on main support and the pivoted arm for being connected to main support two sides, the main support pass through opening slot
It is fixedly mounted on upper body supporting board carriage, idler wheel is provided on the main support, is provided between the main support and pivoted arm
The elastic drag rope being wound on idler wheel.
Fixed setting and shoulder neck and the matched cavernous body of lumbar curve, the head on the neck hook plate and waist plate
The side both ends of neck hook plate are provided with handle.
The hip point of the main lying board frame is provided with buttocks plate, and shaft, the stern are provided in the middle part of the buttocks plate
Bearing is installed between the shaft of portion's plate and main lying board frame.
The fastening screw that main lying board frame and buttocks plate can be positioned is set between the main lying board frame and buttocks plate.
After above-mentioned structure, due to setting the upper body supporting board carriage being hinged on main lying board frame and pass through cunning
Dynamic adjustment structure is mounted on the neck hook plate on upper body supporting board carriage, and neck hook plate is thus enable to pass through upper body supporting plate
The slidable adjustment structure of support frame within the scope of sliding distance along straight reciprocating, to match the training of different heights
Person meets the requirement of various different height trainers, makes neck hook plate free to slide in the training process at the same time
The neck shoulders for remaining at trainer, avoid and will cause damage to cervical vertebra, in addition, the waist plate of setting protects
Waist is injury-free, furthermore, the pectoralis major exerciser of setting can temper pectoralis major, function while tempering waist, abdomen position
It can be complete.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cervical vertebra protective sit-up exercise device of the present invention;
Fig. 2 is the structural schematic diagram of pectoralis major exerciser in the present invention.
Specific embodiment
With reference to the accompanying drawings and detailed description, cervical vertebra protective sit-up exercise device of the invention is made further detailed
Explanation.
As shown, cervical vertebra protective sit-up exercise device of the invention, including horizontally disposed main lying board frame 1, setting exist
The leg fixing end 2 of main lying board frame rear end, the front end of main lying board frame 1 are hinged with upper body supporting board carriage 3, upper body supporting board carriage
3 can be provided with slidable adjustment structure on hinge joint reciprocally swinging, upper body supporting board carriage 3, on upper body supporting board carriage 3
It is provided with the neck hook plate 4 for being pressed over trainer's neck shoulders, neck hook plate 4 is movably arranged on upper body supporting plate branch
It can swing on support 3 and on upper body supporting board carriage 3, neck hook plate 4 can pass through upper body supporting board carriage
Slidable adjustment structure front and back within the scope of sliding distance moves back and forth, to match the trainer of different heights and in training process
In make the neck shoulders free to slide for remaining at trainer of neck hook plate 4.
Further, described upper body supporting board carriage 3 is a round tube, and the lower end of round tube is hinged on master by shaft and lies
On grillage 1, slidable adjustment structure is the top shoe 5 covered on upper body supporting board carriage 3, and neck hook plate 4 is pacified by top shoe 5
On upper body supporting board carriage 3, neck hook plate 4 reciprocating linear can slide under the drive of top shoe.
Still further, described neck hook plate 4 include the fixed plate 6 being fixedly connected with top shoe 5 and by turn
Axis and bearing are mounted on the movable plate 7 in fixed plate, and fixed plate 6 can move back and forth front and back under the drive of top shoe, activity
Plate 7 can be rotated along shaft opposing fixed plate so that neck hook plate 4 can reciprocatingly slide along upper body supporting board carriage and
Rotation.
Still further, the sliding block 16 positioned at 3 bottom of upper body supporting board carriage is cased on upper body supporting board carriage 3, under
One piece of waist plate 8 that can be moved back and forth on upper body supporting board carriage, neck hook plate 4 and waist support are provided on sliding block
Fixed setting and shoulder neck and the matched cavernous body of lumbar curve, the side both ends of neck hook plate 4 are provided with handle 9 on plate 8, main
The hip point of lying board frame 1 is provided with buttocks plate 10, and the middle part of buttocks plate 10 is provided with shaft, and the shaft of buttocks plate 10 and master lie
Bearing is installed, setting can position main lying board frame and buttocks plate between main lying board frame 1 and buttocks plate 10 between grillage 1
Fastening screw.
Still further, being fixedly installed with pectoralis major exerciser, pectoralis major exerciser on described upper body supporting board carriage 3
Including main support 11, the opening slot 12 being connected on main support and the pivoted arm 13 for being connected to main support two sides, main support 11
By being open, slot is fixedly mounted on upper body supporting board carriage 3, and idler wheel 14,11 He of main support are provided on main support 11
The elastic drag rope 15 being wound on idler wheel 14 is provided between pivoted arm 13.