Collapsible center of gravity servo-actuated ab lounge bed[technical field]
The utility model belongs to exercise and fitness equipment, more particularly, especially relates to the double very collapsible center of gravity servo-actuated ab lounge bed of waist fitness equipment product of a kind of sit-ups.
[background technology]
Because human body needs the position of motion exercise numerous, therefore developed on the market at present and the different numerous sport and body-building device products of functional structure kenel, and the sport and body-building device that develops out at the difference in functionality effect such as treadmill, treadmills, the fitness equipment that sways one's hips, rowing exercise equipment or the like also develop on its structure different kenels and reach mode.
Existing sit-ups fitness equipment finds still to exist the following problems point on the market in actual use experience: too require great effort when 1, causing the user to carry out the sit-ups action because of user's knee bends excessive height, cause user's exercise to be difficult to persevere easily; 2, user's sit-ups actions must expend sizable waist abdomen power and just can reach, though so can temper waist and belly muscle better, because generally user and non professional sportsman, waist hypodynamic people be in the great majority, and causes athletic injury on the contrary easily; The motion miscellaneous function that 3, sit-ups are only arranged, additional effect of shortcoming and value.
[utility model content]
Technical problem to be solved in the utility model is to provide a kind of both can be used as chaise longue, can be used as the collapsible center of gravity servo-actuated ab lounge bed of sit-ups fitness equipment again, and laborsaving, and the user can temper the muscle of waist and belly easily.
The technical solution of the utility model is: collapsible center of gravity servo-actuated ab lounge bed, comprise the seat support, the chair back that bend and be provided with the fabric seat by metal tube, and described seat support, the chair back are hinged; Described seat support, chair back both sides are respectively equipped with can draw folding " A " font support in, is hinged with front support stand on described " A " font support front support leg, and described front support stand front end is hinged by connecting rod and described seat support bottom surface; Described chair back rear portion is provided with crossbeam, is connected with cross bar between described " A " font support rear leg, is connected with a collapsible support bar with locking mechanism between described crossbeam and the described cross bar.
As the further improvement of such scheme, described collapsible support bar two ends are hinged with described crossbeam and cross bar respectively by bearing pin, or are enclosed within on described crossbeam and the cross bar cylindrical by the collar.
Another kind as such scheme improves, and described front support stand upper surface is provided with one and goes up leg, and described connecting rod lower surface correspondence is provided with a lower support leg, and when described ab lounge bed was in the sitting posture state, described upward leg and described lower support leg flexibly connected.
As the further improvement of such scheme, a pair of road wheel is equipped with in described seat support and chair back hinged place.
The invention has the advantages that: rational in infrastructure, both can be used as chaise longue, can be used as the collapsible center of gravity servo-actuated ab lounge bed of sit-ups fitness equipment again, can switch to chaise longue state or bed state rapidly, and this chair bed is to utilize body weight for humans (amount) power to do work, seat support, the chair back and " A " font prop up the lanar four rod mechanism that is configured to, utilize its characteristic, a little firmly can change the position of centre of gravity of ab lounge bed by back and shank, the shape by quadric chain reaches the purpose that leicht fallen D/A is tempered the muscle of waist and belly; When needing rest, lock its length, promptly become bed with collapsible support bar elongation and with lockable mechanism; This chair bed can be folding fully when needing transportation, utilizes the road wheel that carries, and can drag away with hand very easily.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a sitting posture structure graph of the present utility model,
Fig. 2 is a level structure chart of the present utility model,
Fig. 3~5 are the utility model folding process figure.
Among the figure: 1. the chair back; 2. " A " font support; 3. collapsible support bar; 4. collapsible crossbeam; 5. foot pad circle; 6. handrail; 7. road wheel; 8. seat; 9. seat support; 10. front support stand; 11. connecting rod.
[specific embodiment]
Further specify the utility model below by embodiment, and the utility model is not restricted to described embodiment, all similar with the utility model structure, and only be that size, position are adjusted or change person to some extent, then all belong to protection category of the present utility model.
As shown in Figure 1, 2, collapsible center of gravity servo-actuated ab lounge bed comprises the seat support 9, thechair back 1 that are bent and be provided with fabric seat 8 by metal tube, and seat support 9, thechair back 1 are hinged.Seat support 9, the chair back 1 both sides are respectively equipped with can draw folding " A " font support 2 in, is provided with collapsible crossbeam 4 in the middle of " A " font support 2, and handrail 6 is equipped with on " A " font support 2 tops.
Be hinged with front support stand 11 on " A " font support 2 front support legs, front support stand 11 front ends connect by connectingrod 10 and seat support 9 bottom surfaces are movable, and connectingrod 10 two ends are hinged with front support stand 11 upper surfaces and seat support 9 bottom surfaces respectively.
The chair back 1 rear portion is provided with crossbeam, " A " font support 2 forward and backward legs are frame structure, are set withfoot pad circle 5 on the cross bar between the leg.Be connected with acollapsible support bar 3 with locking mechanism between crossbeam and the cross bar.Collapsible support bar 3 is socketed to form by the different iron pipe of two-section diameter, wherein have a plurality of locating holes on an iron pipe, on another root iron pipe the lockable mechanism that comprises alignment pin and back-moving spring is housed, alignment pin is in normally off under spring action, the length of locating hole and lockingcontraction support bar 3 is inserted in the end, when needing to shrinksupport bar 3, extract alignment pin and get final product.
Front support stand 11 upper surfaces are provided with one and go up leg, and connectingrod 10 lower surface correspondences are provided with a lower support leg, and when the ab lounge bed was in the sitting posture state, last leg and lower support leg flexibly connected.The road wheel 7 of a pair of transportation usefulness is equipped with in seat support 9 and the chair back 1 hinged place.
When needing rest, lock it in appropriate length, promptly become the bed state withcollapsible support bar 3 elongations and with lockable mechanism; When needing transportation, according to the order of Fig. 3~5 that this chair bed is folding fully, utilize the road wheel 7 that carries, can drag away very easily.
Need to prove, relativeness between each parts of being described in the accompanying drawings (comprising position relation and magnitude relationship), only be for illustrative purposes,, can as required each parts be arranged on the position that needs as long as can realize the purpose of this utility model.Such as,collapsible support bar 3, be to be enclosed within realization activity connection on crossbeam and the cross bar external diameter in the accompanying drawings by the collar, it will be appreciated by those skilled in the art that, as required, adopt means of different to realize thatcollapsible support bar 3 connects with the activity of crossbeam and cross bar, for example hinged by bearing pin and crossbeam and cross bar.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.