CN201182857Y

CN201182857Y - Situp training machine

Info

Publication number: CN201182857Y
Application number: CNU2008200926950U
Authority: CN
Inventors: 廖学湖
Original assignee: HL CORP (SHEN ZHEN)
Current assignee: HL CORP (SHEN ZHEN)
Priority date: 2008-03-14
Filing date: 2008-03-14
Publication date: 2009-01-21
Anticipated expiration: 2018-03-14
Also published as: WO2009111933A1

Abstract

The utility model discloses a sit-up training machine, which comprises a seat body, a backrest and elastic components. The seat body comprises two bottom beams, a shaft sleeve is fixed at the rear section of each bottom beam, and a shaft rod is penetrated in the two shaft sleeves; the backrest comprises a main beam, wherein, a first shaft pipe nested on the shaft rod is arranged at the bottom end of the main beam; the elastic components comprise two second shaft pipes respectively nested on the shaft rod, two fixing pieces respectively extending out from the corresponding second shaft pipes and two torsion springs respectively nested on the second shaft pipes, wherein, the fixing pieces are connected to the main beam, one end of each torsion spring is fixed on the fixing pieces, and the other end therof is fixed on the bottom beams. A shaft hole is arranged on each fixing piece, punched holes are arranged on the main beam, and a pin is perforated in the shaft holes and the punched holes. The sit-up training machine has the advantages that the structure is simple, and the gap between the torsion spring and the corresponding component is small, thereby the problems that the normal use is affected or the user is injured because of clamping foreign matters can be avoided; when the sit-up training machine is not used, the backrest of the sit-up training machine can be conveniently folded to be close to the seat body, the occupied space can be largely reduced, thus the sit-up training machine is favorable for collection and carrying.

Description

Sit-Up Training Machine

Technical field

The utility model relates to a kind of health and fitness facilities, refers in particular to a kind of Sit-Up Training Machine.

Background technology

Sit-ups are a kind of common sport and body-building modes, at present, also have special Sit-Up Training Machine user to carry out the sit-ups action with exercise back, abdominal muscles.

The structure of common Sit-Up Training Machine is comparatively complicated, No. 200620137335.9 disclosed a kind of Ground Sit-up Training Machines of Chinese utility model patent ZL as bulletin on October 10th, 2007, it includes a pedestal, a backrest bolster and two elastic parts, wherein: this pedestal can be placed on the ground, and its leading portion is provided with a pedestal; Outstanding respectively first fixed part that forms in its back segment both sides; This backrest bolster is to be upright ten thousand formulas to be arranged at the pedestal rear end, and its bottom and pedestal are pivoted mutually; Its upper parallel is arranged at intervals with several rollers, and outstanding respectively second fixed part that forms of its middle section both sides external; This elastic parts connects pedestal and backrest bolster respectively, is fixed in first fixed part with an end, and the other end is fixed in second fixed part.In the pedestal both sides also respectively axle be provided with a runner, be formed with on this runner annular recess for the elasticity assembly against.

There is complex structure in above-mentioned this Sit-Up Training Machine, and its elastic parts is positioned at the pedestal both sides, and it is movable to be resisted against in the annular recess, and the gap is big between its annular recess and the elastic parts, easy clamping foreign matter and influence normal use, even can crush the user.In addition, its backrest can't fold, and it is big to take up room, and is unfavorable for collection, packing and carrying.

The utility model content

Technical problem to be solved in the utility model is: a kind of Sit-Up Training Machine is provided, and it is simple in structure, and is easy to operate, and safe and reliable.

The further technical problem to be solved of the utility model is: a kind of Sit-Up Training Machine is provided, and it can fold easily, takes up room and is beneficial to collection and carrying for a short time.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of Sit-Up Training Machine, comprise pedestal, be movably arranged in the backrest of pedestal rear end and be connected in pedestal and backrest between elastic parts.Described pedestal comprises two bottom girders of vertically being located at both sides respectively, and each fixes the axle sleeve of a lateral direction penetrating back segment of each bottom girder, and other has axostylus axostyle two ends to be located in respectively in two axle sleeves; Described backrest comprises a girder, and described girder bottom laterally is provided with first central siphon that is enclosed within on the axostylus axostyle; Described elastic parts comprise be enclosed within on the axostylus axostyle respectively and be positioned at two second central siphons of axle sleeve inboard, respectively from two stators that corresponding second central siphon vertically stretches out and be enclosed within two torsion springs on corresponding second central siphon respectively, described stator is connected on the girder, and an end of each torsion spring is fixed on the stator, and the other end is fixed on the bottom girder.

Preferably, each stator is provided with an axis hole, and correspondingly also is provided with the perforation that aligns with described axis hole on girder, is arranged in by means of a bearing pin to connect described stator and girder in described axis hole, the perforation.

The beneficial effects of the utility model are: the utility model adopts torsion spring that the resistance of motion and back stretch are provided, simple in structure, the resistance of necessity, back stretch in the time of can not only providing body building, and because the gap between torsion spring and the corresponding assembly is little, and the gap of the torsion spring and second central siphon is in inside, thereby can effectively avoid elastic parts to influence normal use or crush the user because of the clamping foreign matter; In addition, by being connected and fixed sheet and girder by means of bearing pin, and can be when not using, only need extract bearing pin can fold backrest press close to pedestal easily, thus making to take up room dwindles greatly, helps collection, packing and carrying.

Description of drawings

Fig. 1 is the exploded view of the utility model Sit-Up Training Machine.

Fig. 2 is the three-dimensional assembly diagram of the utility model Sit-Up Training Machine.

Fig. 3 is the three-dimensional assembly diagram of the utility model Sit-Up Training Machine when bracing frame stretches out.

Fig. 4 is the user mode figure of the utility model Sit-Up Training Machine.

Below in conjunction with accompanying drawing the utility model is described further:

The specific embodiment

As shown in Figure 1 to Figure 3, the utility model provides a kind of Sit-Up Training Machine, comprise pedestal 1, be movably arranged in pedestal 1 rear end backrest 2, be arranged at the top of backrest 2 headrest bolster 3, be connected in elastic parts and handrail 5 between pedestal 1 and the backrest 2.

Wherein, described pedestal 1 comprises that two bottom girders 10 of vertically being located at both sides respectively are located at the seat cushion 11 of bottom girder top, each fixes the axle sleeve 12 of a lateral direction penetrating back segment of each bottom girder 10, other has an axostylus axostyle 6 two ends to be located in respectively in two axle sleeves 12, also is provided with fixing hole 13 on the medial surface of first bottom girder, 10 back segments.Described two bottom girders also are provided with crossbeam 14 between the middle part, crossbeam 14 is provided with first sleeve pipe 15, be inserted with a bracing frame 16 on described first sleeve pipe 15, support frame as described above 16 includes an end and is inserted in slide bar 160 in described first sleeve pipe 15 and the stay pipe 162 that takes shape in slide bar 160 other ends movably, support frame as described above 16 can skid off certain distance along first sleeve pipe 15 in use, makes integral body more steady to provide support.The front end of described bottom girder also is horizontally set with and is useful on second sleeve pipe 18 that handrail 5 is installed.

Described backrest 2 described backrests 2 are convex arc-shape, comprise a girder 20, be installed on the back pad 21 in girder 20 fronts, and described back pad is protruded towards pedestal 1 one side arcuations, and are provided with the massage salient point 210 of some projectioies on the convex arc outer surface.Described girder 20 bottoms laterally are provided with first central siphon 22, and the top of described girder 20 also is provided with stationary pipes 24, and described stationary pipes 24 tube walls are provided with at least one perforation (figure does not indicate).

The bottom of described headrest bolster 3 is provided with an inserting column 30, also be provided with at least one fixing hole (scheming not shown) on the inserting column 30, described inserting column 30 is inserted in the stationary pipes 24 of backrest 2, pass the perforation on the stationary pipes 24 and be locked in the fixing hole of inserting column 30 and fix headrest bolster 3 by corresponding locking part 32, the described locking part 32 preferred manual screws that adopt are so that manual mounting or dismounting operation.

Described elastic parts comprise be enclosed within respectively on the axostylus axostyle 6 and at two second central siphons 40 of axle sleeve 12 inboards, two stators 42 that vertically stretch out from the inner end of corresponding second central siphon 40 respectively, be connected in the brace 44 between two stators and be enclosed within two torsion springs 46 on corresponding second central siphon 40 respectively.Each stator 42 is provided with an axis hole 420, and correspondingly also is provided with the perforation 200 that aligns with described axis hole 420 on girder 20, is arranged in by means of a bearing pin 48 to connect described stator 42 and girder 20 in described axis hole 420, the perforation 200.And an end of each torsion spring 46 is fixed on the stator 42, and the other end is fixed in the fixing hole 13 on the bottom girder 10, thereby backrest 2 is remained on substantially the angle position perpendicular to pedestal 1 when not being subjected to external force.Described torsion spring 46 outsides also are provided with the protecting cover 47 that entangles torsion spring 46, can avoid foreign matter to enter better and block torsion spring 46 and the normal use of influence, and security reliability is good.Elastic parts generally can be assembled the later stage installation that is beneficial in aggregates earlier.

Described handrail 5 is two, it is located at the both sides of pedestal 1 respectively, and an end of each handrail 5 form to insert in second sleeve pipe 18 of the pedestal 1 and insertion section 50 that combines with pedestal 1, the other end with respect to insertion section 50 vertical bendings after again arc-shaped bend form armrest part 52.

The utility model placed elastic parts between two axle sleeves 12 earlier in when assembling, made its second central siphon 40 align the axle sleeve 12 of respective side respectively, and an end of torsion spring 46 inserts in the fixing hole 13 on the bottom girder 10; First central siphon 22 with backrest 2 places between two second central siphons 40 again; Then, the axle sleeve 12 of axostylus axostyle 6 from a side penetrated, and pass second central siphon 40 and the axle sleeve 12 of second central siphon 40, first central siphon 22, opposite side successively, and be locked in the two ends of axostylus axostyle 6 with bolt 60, shade by bolt 60 is closely against on the external end edge of axle sleeve 12, thereby connects pedestal 1, backrest 2 and elastic parts 4 in aggregates.

Before use, bracing frame 16 is pulled out with supplemental support enhancing stationarity along first sleeve pipe 15; Make axis hole 420 on the stator 42 align perforation 200 on the girder 20 again, pass fixedly connected backrest 2 with bearing pin again and can use with stator 42.When the user outwards compresses backrest 2, backrest 2 rotates backward around axostylus axostyle 6, the torsion spring 46 generation elastic resistance that promptly deforms this moment, to strengthen train on, and torsion spring 46 can also provide return elastic force, help the user to reply its former sitting posture, thereby user's direction shown in the solid line four-headed arrow among Fig. 4 is moved and is carried out exercise repeatedly.

And need not use the time, only need a bracing frame 16 to return, and again bearing pin 48 is extracted, promptly break away from annexation between backrest 2 and the stator 42, can rotate backrest 2 along the direction of arrow shown in the dotted line among Fig. 4 this moment, make backrest 2 press close to the bottom surface of pedestal 1; Again with handrail around the rotation of second sleeve pipe 18 pressing close to pedestal 1, thereby can effectively reduce the training airplane overall volume, help collection, packing and carrying.

Claims

1, a kind of Sit-Up Training Machine, comprise pedestal, be movably arranged in the backrest of pedestal rear end and be connected in pedestal and backrest between elastic parts, described pedestal comprises two bottom girders of vertically being located at both sides respectively, described backrest comprises a girder, it is characterized in that: each fixes the axle sleeve of a lateral direction penetrating back segment of each bottom girder, and other has axostylus axostyle two ends to be located in respectively in two axle sleeves; Described girder bottom laterally is provided with first central siphon that is enclosed within on the axostylus axostyle; Described elastic parts comprise be enclosed within on the axostylus axostyle respectively and be positioned at two second central siphons of axle sleeve inboard, respectively from two stators that corresponding second central siphon vertically stretches out and be enclosed within two torsion springs on corresponding second central siphon respectively, described stator is connected on the girder, and an end of each torsion spring is fixed on the stator, and the other end is fixed on the bottom girder.

2, Sit-Up Training Machine as claimed in claim 1 is characterized in that: described torsion spring outside also is provided with the protecting cover that entangles torsion spring.

3, Sit-Up Training Machine as claimed in claim 1, it is characterized in that: each stator is provided with an axis hole, and correspondingly on girder, also be provided with the perforation that aligns with described axis hole, be arranged in by means of a bearing pin and connect described stator and girder in described axis hole, the perforation.

4, as claim 1 or 3 described Sit-Up Training Machines, it is characterized in that: described elastic parts also comprises the fixedly connected brace that is integral of two stators.

5, Sit-Up Training Machine as claimed in claim 1 is characterized in that: described first central siphon is between two second central siphons.

6, Sit-Up Training Machine as claimed in claim 1, it is characterized in that: described pedestal below also is provided with a bracing frame, be provided with first sleeve pipe on the pedestal bottom surface, support frame as described above includes an end and is inserted in slide bar in described first sleeve pipe and the stay pipe that takes shape in the slide bar other end movably.

7, Sit-Up Training Machine as claimed in claim 1 is characterized in that: described backrest is convex arc-shape, and it protrudes towards pedestal one side arcuation, and is provided with the massage salient point of some projectioies on convex arc surface.

8, as claim 1 or 7 described Sit-Up Training Machines, it is characterized in that: described Sit-Up Training Machine also comprises a headrest bolster, a side roof part that deviates from pedestal of described backrest is provided with stationary pipes, described stationary pipes tube wall is provided with at least one perforation, and the bottom of described headrest bolster is provided with an inserting column, also be provided with at least one fixing hole on the inserting column, described inserting column is inserted in the stationary pipes, is passed the perforation on the stationary pipes and is locked in the fixing hole of inserting column and fixes headrest bolster by corresponding screw.

9, Sit-Up Training Machine as claimed in claim 1, it is characterized in that: described pedestal both sides also respectively are provided with a handrail, the front portion of described pedestal bottom girder has been horizontally set with second sleeve pipe, and an end of each handrail form to insert in described second sleeve pipe and the insertion section that combines with pedestal, the other end with respect to the vertical bending in insertion section after arc-shaped bend formation armrest part again.

10, Sit-Up Training Machine as claimed in claim 1 is characterized in that: by the bolt locking, the shade of bolt is closely against on the external end edge of axle sleeve respectively at described axostylus axostyle two ends.