CN2910284Y

CN2910284Y - Sit-ups machine

Info

Publication number: CN2910284Y
Application number: CN 200620058256
Authority: CN
Inventors: 廖学湖
Original assignee: HL CORP (SHEN ZHEN)
Current assignee: HL CORP (SHEN ZHEN)
Priority date: 2006-04-22
Filing date: 2006-04-22
Publication date: 2007-06-13
Anticipated expiration: 2016-04-22

Abstract

The utility model relates to a sit-ups machine, which comprises a main holding frame, a back cushion, a cushion, a foot hitching rack and an elastic tension piece, wherein, the main holding frame takes the shape of the Chinese character ''ren'' and includes a first and second horses both with the top ends mutually connected; the back cushion and the cushion are respectively arranged above the first and second horses with the middle part of the back cushion leaning to one end connected to the top end of the first horse through pin joint; the foot hitching rack extends out from the tail end of the cushion; the elastic tension piece is respectively connected with the end of the back cushion near the second horse as well as the second horse; the first horse is provided with a cylinder or a hydraulic cylinder with the cylinder body connected with the first horse or the subface of the back cushion through pin joint, while a plug rod is correspondingly connected to the subface of the back cushion or the first horse through pin joint. The utility model can avoid danger resulting from direct falling of the back cushion during headstand sit-up through adopting cylinder or hydraulic cylinder for buffering, and makes the back cushion restore automatically when user sits up through the elastic tension piece so as to continue the next circulatory action.

Description

The sit-ups machine

[technical field]

The utility model relates to a kind of health and fitness facilities, is meant a kind of sit-ups machine especially.

[background technology]

Current, various health and fitness facilities increased popularity, wherein the sit-ups machine is just with its characteristics such as workable, applied widely and widely popular.As 96218845.X number disclosed a kind of sit-ups fitness equipment of Chinese utility model patent ZL, oblique frame, the frame that retreads, back rest and damping element before it comprises, before tiltedly frame is affixed and form the fitness equipment main body with the frame that retreads, has the strut rail that is used for instead leaning on sporter's shank on the preceding tiltedly frame, the frame front end that retreads then has seat, back rest and fitness equipment main body are hinged, damping element for back rest after pendulum resistance is provided.This sit-ups machine can provide certain resistance to slow down the back slew rate degree of back rest by damping element, can avoid excessive, the too quickly potential safety hazard that causes of the amplitude of oscillation to a certain extent, but because damping element is generally plastic strip, if adopt the bigger plastic strip of elastic force, resistance is corresponding accordingly also can avoid the rapid bottom more greatly, but human body is imposed bigger thrust when resilience, making does not need what strength of flower when the user sits up, do not reach effective exercise purpose yet; If adopt the less plastic strip of elastic force, the resistance when then the user swings back is less, can't effectively avoid excessive, the too quickly problem of the amplitude of oscillation and still exists human body to collide to sit the first-class potential safety hazard of machine structure.

[utility model content]

Technical problem to be solved in the utility model is: a kind of sit-ups machine is provided, and its each mechanism kinematic is steady, and security is good.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of sit-ups machine is provided, comprises main backstop, back pad, cushion, hook frame and elastic pulling force spare.Described main backstop is herringbone, comprise interconnective first foot rest in top and second foot rest, described back pad, cushion are installed in first foot rest, second foot rest top respectively, and the middle part of back pad is partial to an end place and is articulated in the first foot rest top, the hook frame stretches out from the end of cushion, and elastic pulling force spare links to each other with an end and second foot rest of back pad by second foot rest respectively.Described first foot rest is provided with a cylinder or hydraulic cylinder, and the cylinder body of described cylinder or hydraulic cylinder is articulated on first foot rest or the back pad bottom surface, and stopper rod is then corresponding to be articulated on the back pad bottom surface or first foot rest.

The beneficial effects of the utility model are: the utility model cushions by adopting cylinder or hydraulic cylinder, when the handstand back floating position, can avoid back pad directly to topple over the danger of bringing, and work when sitting automatic homing thereupon by back pad at health by elastic pulling force spare, so that continue next do action.

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

[description of drawings]

Fig. 1 is the assembled state stereogram of the utility model sit-ups machine.

Fig. 2 is the main backstop and the back pad combination schematic diagram of the utility model sit-ups machine.

Fig. 3 is the cushion fixed rack structure schematic diagram of the utility model sit-ups machine.

Fig. 4 is the bar linkage structure schematic diagram of the hook frame of the utility model sit-ups machine.

[specific embodiment]

As shown in Figure 1, the utility model provides a kind of sit-ups machine, comprises main backstop 1, back pad 2, cushion 3, hook frame 4, elastic pulling force spare 5 and handrail 6.

Wherein, described main backstop 1 is herringbone, comprise interconnective first foot rest 11 in top and second foot rest 12, as shown in Figure 2, the top upside of described first foot rest 11 is provided with the back pad pin-jointing piece 111 that takes the shape of the letter U, and downside also is provided with a foot rest adjustment sheet 112 that takes the shape of the letter U, and described back pad pin-jointing piece 111 is provided with back pad pivoted hole 1110; Described foot rest adjustment sheet 112 downwardly facing openings, which is provided with a foot rest pivoted hole 1120, and also be provided with first locating hole 1121, second locating hole 1122, second foot rest, 12 positions when wherein said first locating hole 1121 is in user mode with the sit-ups machine are corresponding, and the line of common first locating hole 1121 and described foot rest pivoted hole 1120 is perpendicular to first foot rest 11; And second foot rest, 12 positions that second locating hole 1122 and sit-ups machine are in when closing up collecting state are corresponding, and common second locating hole 1122 is parallel to first foot rest 11 with the line of foot rest pivoted hole 1120.And the top correspondence of second foot rest 12 is articulated in corresponding foot rest pivoted hole 1120 places on the foot rest adjustment sheet 112, and second foot rest, 12 tops also are provided with jack (scheming not shown), when jack and first locating hole 1121 aligns and insert with a latch (figure indicate) in the jack on first locating hole 1121 and second foot rest 12 and constitute the supporting construction of a main backstop fixedly the time; When needs are covered up, this latch is extracted, again second foot rest 12 is closed up to align to the jack and second locating hole 1122 to first foot rest, 11 directions rotations and insert latch again and fix, can dwindle occupied space so that collect.For strengthening the stationarity on support ground, support in ground transverse tube 110,120 and be respectively equipped with one in the bottom of described first foot rest 11, second foot rest 12.In addition, also can on described first foot rest 11, also be provided with some dumbbell supports 113,, use flexibility good so that use jointly, collect with dumbbell for the placement dumbbell.

Described first foot rest 11 is provided with a cylinder 8, and the cylinder body 81 of described cylinder 8 is articulated on first foot rest 11, and its stopper rod 82 is articulated in the bottom surface of back pad 2, thereby can be when back pad 2 is down moved, and a resistance is provided and plays cushioning effect.Certainly, described cylinder 8 also can adopt hydraulic cylinder to replace and can reach the effect of buffering equally.

Described back pad 2 is installed in the top of first foot rest 11, the middle part of back pad 2 a deflection wherein end place is articulated in the top of main backstop 1, described back pad 2 comprises a back pad fixed mount 21 and is fixed in back pad layer 22 on the back pad fixed mount 21, the middle part of described back pad fixed mount 21 is partial to an end place and is provided with a pivot hole (scheming not shown), and the back pad pivoted hole 1110 on the top back pad pin-jointing piece 111 of itself and first foot rest 11 aligns and passes with a pivot (scheming not shown) and the pivot two ends lock respectively and articulate one again.And it is spacing for back pad 2 is carried out to avoid back pad 2 rotations excessively, as shown in Figure 2, also can be positioned on the back pad pin-jointing piece 111 back pad pivoted hole 1110 below both sides also be respectively equipped with first spacing hole 1111, second spacing hole 1112, when normal the use, one spacing latch (scheming not shown) inserted be positioned at fall down first spacing hole 1111 of a side of back pad 2, the back pad 2 excessive bottom backward in the time of can avoiding the user to face upward; And when not using, needing collection, then spacing latch is inserted and be positioned on second spacing hole 1112 and the back pad 2 through hole (scheme not shown) corresponding with second spacing hole 1112, can make back pad 2 to rotate, cause back pad 2 and rotate the potential safety hazard of bringing because of maloperation or child play to run into avoiding.As want simplified structure, also can be, second spacing hole 1112 unites two into one and only keep first spacing hole 1111, when normally using, will spacing latch be inserted in first spacing hole 1111 again behind back pad 2 turn-ofves with first spacing hole 1111; Then spacing latch is extracted the through hole and first spacing hole 1111 that again back pad 2 are gone on it when needing collection and aligned, more spacing latch is inserted in first spacing hole 1111 and the through hole and fix.

Described cushion 3 is installed in the top of second foot rest 12, comprises a cushion fixed mount 31 and cushion layer 32.As shown in Figure 3, described cushion fixed mount 31 comprises a column 311 that protrudes upward from second foot rest 12 and is installed in the crossbeam 312 on its top perpendicular to column 311 that described cushion layer 32 is fixed on the crossbeam 312.

Described hook frame 4 stretches out from the end of cushion 3, comprises that one is connected in the connecting rod 41 of cushion 3 bottoms and is fixed in the hook bar 42 of connecting rod 41 bottoms.As shown in Figure 4, described connecting rod 41 comprises a sleeve pipe 411 and an intubate 412 of mutual grafting again, and be provided with row's fixing hole 4110 in sleeve pipe 411 upper edge direction of insertion, and on intubate 412 the corresponding elasticity bayonet lock 4120 that is provided with, elasticity bayonet lock 4120 snapped in wherein in the fixing hole 4110 and fix when intubate 412 was inserted sleeve pipes 411, elasticity bayonet lock 4120 was snapped in the different fixing hole 4110 and different connecting rod 4 length of middle acquisition and be fit to the long user's use of different legs.In embodiment as shown in Figure 1, sleeve pipe 411 is positioned at the top and links to each other with cushion 3, and intubate 412 links to each other with hook bar 42 below being positioned at, certainly, be appreciated that ground, both positions can exchange, and promptly intubate 412 links to each other with cushion 3 above being positioned at, and sleeve pipe 411 links to each other with hook bar 42 below being positioned at.In addition, also be provided with one lever regulated 43 in described cushion 3 bottoms, correspondence is provided with connecting rod pivoted hole 430 and some connecting rod locating holes 431 that distributes around connecting rod pivoted hole 430 along circular arc line on it, the top of described sleeve pipe 411 also correspondence is provided with a pivoted hole 4112 and a through hole 4113, align with the pivoted hole 4112 on sleeve pipe 411 tops and connecting rod pivoted hole 430 on lever regulated 43 and to pass with pivot (scheming not shown) again and articulate one, through hole 4113 on the sleeve pipe 41 aligns with a wherein connecting rod locating hole 431 on lever regulated 43 again and inserts and fix with alignment pin (figure indicates), can obtain the angle of inclination of different hook framves 4 and can increase the use flexibility when the through hole on the sleeve pipe 41 4113 aligns different connecting rod locating holes 431 and fixes.

Described elastic pulling force spare 5 links to each other with an end and second foot rest 12 of back pad 2 by second foot rest 12 respectively, it correspondingly is provided with fixed bar 22,122 on the back pad 2 and second foot rest 12, the two ends of elastic pulling force spare 5 are enclosed within on the corresponding fixed bar 22,122 respectively and the outer end of fixed bar 22,122 fixes with jump ring 9 again and prevent that elastic pulling force spare 5 from coming off.The automatic resilience that elastic pulling force spare 5 is mainly back pad 2 provides elastic-restoring force, and it can adopt the rubber elastomeric material to make lamellar body, in addition can also be directly elastic component such as employing spring.

Described handrail 6 is installed in the both sides of cushion 3, and correspondingly is provided with a handrail mounting pipe 61 in the bottom of cushion 3 backing cushion 2 one ends, and a handrail 6 is installed at the two ends of handrail mounting pipe 61 respectively.Handrail mounting pipe 61 two ends are respectively equipped with row's hole clipping 610, and the bottom of described two handrails 6 is respectively equipped with elasticity bayonet lock (figure does not indicate), and handrail 6 inserts in the handrail mounting pipe 61, are snapped in the corresponding hole clipping 610 by the elasticity bayonet lock and fix.Cooperates with the elasticity bayonet lock and can regulate spacing between two handrails 6 by regulating to be fit to different users's use with different hole clipping 610.In addition, also can in the time need not using handrail 6, it be removed.

The utility model sit-ups machine can be realized multiple exercise:

Live handrail 6 when the user is hand steered, both feet catch on hook bar 42, lean against when moving reciprocatingly on back pad 2, can temper the human body leg muscle, abdominal muscles and muscle of back;

When the hand-held dumbbell of user's both hands, both feet catch on hook bar 42, lean against when moving reciprocatingly on back pad 2, can temper human body leg muscle, abdominal muscles, muscle of back and hand muscle.

The utility model cushions by adopting cylinder 8 or hydraulic cylinder, when the handstand back floating position, can avoid back pad 2 directly to topple over the danger of bringing, and allow back pad 2 work when sitting automatic homing thereupon, so that continue next do action at health by elastic pulling force spare 5.

Claims

1, a kind of sit-ups machine, comprise main backstop, back pad, cushion, hook frame and elastic pulling force spare, described main backstop is herringbone, comprise interconnective first foot rest in top and second foot rest, described back pad, cushion is installed in first foot rest respectively, second foot rest top, and the middle part of back pad is partial to an end place and is articulated in the first foot rest top, the hook frame stretches out from the end of cushion, elastic pulling force spare links to each other with an end and second foot rest of back pad by second foot rest respectively, it is characterized in that: described first foot rest is provided with a cylinder or hydraulic cylinder, the cylinder body of described cylinder or hydraulic cylinder is articulated on first foot rest or the back pad bottom surface, and stopper rod is then corresponding to be articulated on the back pad bottom surface or first foot rest.

2, sit-ups machine as claimed in claim 1, it is characterized in that: described back pad comprises a back pad fixed mount and is fixed in back pad layer on the back pad fixed mount, the middle part of described back pad fixed mount is partial to an end place and is provided with a pivot hole, and the main backstop top is provided with the U-shaped pin-jointing piece, the U-shaped pin-jointing piece is provided with the back pad pivoted hole, and pivot hole and back pad pivoted hole align and pass with a pivot and the pivot two ends lock respectively and articulate one again.

3, sit-ups machine as claimed in claim 1, it is characterized in that: described cushion comprises a cushion fixed mount and cushion layer, described cushion fixed mount comprises a column that protrudes upward from second foot rest and is installed in the crossbeam on its top perpendicular to column that described cushion layer is fixed on the crossbeam.

4, sit-ups machine as claimed in claim 1 is characterized in that: the bottom of cushion backing cushion one end is provided with a handrail mounting pipe, and a handrail is installed at the two ends of handrail mounting pipe respectively, and described handrail lays respectively at the cushion both sides.

5, sit-ups machine as claimed in claim 4, it is characterized in that: handrail mounting pipe two ends are respectively equipped with row's hole clipping, and the bottom of described two handrails is respectively equipped with the elasticity bayonet lock, and handrail inserts in the handrail mounting pipe, is snapped in the corresponding hole clipping by the elasticity bayonet lock and fixes.

6, sit-ups machine as claimed in claim 1, it is characterized in that: the downside at the described first foot rest top is provided with a foot rest adjustment sheet that takes the shape of the letter U, which is provided with the foot rest pivoted hole, and the top correspondence of second foot rest is articulated in corresponding foot rest pivoted hole place on the foot rest adjustment sheet; Also be provided with first locating hole and second locating hole on the described foot rest adjustment sheet, crus secunda chord position when described first locating hole is in user mode with the sit-ups machine is put corresponding, and the crus secunda chord position that second locating hole and sit-ups machine are in when closing up collecting state is put corresponding, second foot rest is provided with a jack, and the described jack and first locating hole or second locating hole align and insert a latch and fix.

7, sit-ups machine as claimed in claim 1, it is characterized in that: described hook frame comprises that one is connected in the connecting rod of cushion bottom and is fixed in the hook bar of connecting rod bottom, described cushion bottom is provided with one lever regulated, correspondence is provided with connecting rod pivoted hole and some connecting rod locating holes that distributes around the connecting rod pivoted hole along circular arc line on it, the top of described connecting rod also correspondence is provided with a pivoted hole and a through hole, the pivoted hole on connecting rod top and the connecting rod pivoted hole on the adjustment sheet align and pass with pivot and articulate one, and the wherein connecting rod locating hole on the through hole on the connecting rod and lever regulated aligns and inserts and fix with alignment pin.

8, sit-ups machine as claimed in claim 7, it is characterized in that: described connecting rod comprises a sleeve pipe and an intubate of mutual grafting again, and be provided with row's fixing hole in sleeve pipe upper edge direction of insertion, and on intubate the corresponding elasticity bayonet lock that is provided with, the elasticity bayonet lock snapped in wherein in the fixing hole and fixes when intubate was inserted.

9, sit-ups machine as claimed in claim 1 is characterized in that: the bottom of described first foot rest, second foot rest is respectively equipped with one and supports in ground transverse tube.

10, sit-ups machine as claimed in claim 1 is characterized in that: also be provided with some for the dumbbell support of placing dumbbell on described first foot rest.