CN2605887Y

CN2605887Y - Adjustable torsion bar mechanism

Info

Publication number: CN2605887Y
Application number: CN 03223122
Authority: CN
Inventors: 施和仁
Original assignee: Naixing Vehicle Material Shenzhen Co ltd
Current assignee: Naixing Vehicle Material Shenzhen Co ltd
Priority date: 2003-01-16
Filing date: 2003-01-16
Publication date: 2004-03-10
Anticipated expiration: 2013-01-16

Abstract

The utility model discloses a regulable torsion bar mechanism, which solves the technique problem of regulable strength in fitness exercise. The technique proposal adopted is that a torsion bar mechanism comprises a couple of left and right handles which are connected on the inner sides with a couple of left and right connecting blocks bending downward; the ends of the left and right connecting blocks are hinged with a front and a back fulcrums of a central support with lengthwise through-holes. The middle parts of the left and right connecting blocks are respectively hinged with the upper parts of two carrier rods. The lower parts of the carrier rods are respectively hinged with a pull rod with a connecting block on the lower part. The upper part of the pull rod passes through the through-holes of the central support, which is in screw connection with an adjusting screw cap. A compression spring is arranged between the central support and the screw cap. The compression amount of the compression spring can be regulated by the regulation of the screw-in level of the pull rod and the screw cap so that the strength in fitness exercise is regulable. The utility model is adaptable to fitness exercises.

Description

The torsion-adjustable linkage

Technical field

The utility model relates to a kind of fitness equipment, particularly a kind of torque arm sport and body-building device.

Background technology

Known torque arm locomotory apparatus in the city, connect a both ends of the spring indirectly with left and right handle, when left hand and right hand is held, impose flexure operation, by the bending resistance of spring therebetween, and reached both hands upper limbs (containing palm, elbow, arm and chest) motor function; This exercise structure letter cover, use easily and volume carries for a short time that seasoning is convenient, price is cheap, so be 10 fens general products; Progressive based on the epoch, standard of living promotes day by day, thoughts on torque arm popular sports equipment like this, should set about improvement in fact and create quality goods, has increased profit value on the one hand, has more promoted the motion quality of the life on the other hand; So, change and efforts of everyone discussion through repeatedly grinding, summarize following three main points: one, increase adjustable strength design, the left and right sides handle of commonly using be between affixed both ends of the spring structure, do not provide and adjust crooked strength function, be suitable for limitedly for child, woman, man, old man, even just time spent strength is little, a period of time training back strength is big, feels too soft not enough power again; One, structure becomes more meticulous, weight saving, and the middle springs of commonly using must be thick and long, and must there be buckling resistance the side, and the spring material metal material so weight is big, causes and carries difficulty; Three, profile is beautified, and to produce senior location, creates more profits and is worth.

Summary of the invention

The purpose of this utility model provides a kind of torsion-adjustable linkage, and the technical problem that solve is that strength is adjustable when doing body building, and another technical problem to be solved in the utility model is the weight that alleviates torque arm sport and body-building device.

The utility model is by the following technical solutions: a kind of torsion-adjustable linkage, comprise a pair of left and right hand lever, the inboard of described left and right hand lever respectively is connected with the crooked left and right contiguous block in an inside below, and the front and back fulcrum of the B-C post of the end of left and right contiguous block and a band longitudinal hole is hinged; The place is hinged with the upper end of two push rods respectively in the middle of the described left and right contiguous block, and the lower end of push rod is hinged with the pull bar of a lower end band lower connecting block respectively, and the through hole of described B-C post is passed in the upper end of pull bar, forms with an adjustment nut to be threaded; Be provided with the compression spring between described B-C post and the nut, the compression spring has down tray.

Being shaped as of left and right contiguous block of the present utility model is L shaped, and the below is provided with middle opening.

Lower connecting block of the present utility model be shaped as H shape.

Left and right hand lever outboard end of the present utility model is equipped with the handle that makes things convenient for hand to grip.

The utility model compared with prior art, be provided with the compression spring between B-C post and the nut, screw-in degree by adjusting yoke and nut, regulate the decrement of compression spring, thereby it is adjustable to reach when doing body building strength, adopt parts such as left and right sides contiguous block, push rod and pull bar to make torque arm sport and body-building device compact conformation, weight saving.

Description of drawings

Fig. 1 is the utility model STRUCTURE DECOMPOSITION schematic diagram.

Fig. 2 is the utility model combination schematic diagram.

Fig. 3 is the utility model mechanism combination schematic diagram.

Fig. 4-1 is the utility model mechanism action figure ().

Fig. 4-2 is the utility model mechanism action figure (two).

Fig. 4-3 is the utility model mechanism action figure (three).

Fig. 5-1 is the utility model usage operation figure ().

Fig. 5-2 is the utility model usage operation figure (two).

Fig. 5-3 is the utility model usage operation figure (three).

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail, extremely shown in Figure 5 as Fig. 1, torsion-adjustable linkage of the present utility model is the mechanism body of an approximate left-right and front-back symmetry, mainly by a left hand bar 10, one right hand bars 20, one pull bar 30, two push rods 40, are adjusted nut 50, one B-C posts 60, once tray 70 cooperates compression spring 53, and

screw

14,17,24,27,36 is in conjunction with constituting; Wherein left hand bar 10 is the round bar structure, left-external side slightly is bent downwardly handle 80 is housed, make things convenient for left-handed to be bent downwardly the application of force, medial extremity is provided with left L type contiguous block 11, also can be other inside below curved shape, its lower end has a fore-and-aft direction through hole 13, and the appropriate location is provided with split shed 12 above prolonging the outside, the through hole 15 and the screw 16 that connect before and after the place, centre is provided with; Right hand bar 20 is the round bar structure, right outboard end slightly is bent downwardly handle 80 is housed, make things convenient for the right hand to grip and be bent downwardly the application of force, primary structure and above-mentioned left hand bar 10 form the left-right and front-back symmetric relation mutually, medial extremity also is provided with right L type contiguous block 21, the through hole 23 and the split shed 22 that wherein also have symmetry, the through hole 25 and the screw 26 that before and after the place, centre is provided with, connect; B-C post 60 is the front and back symmetrical structure, the centre has the jacking block 61 of a suitable thickness, be drilled with longitudinal hole 63, the through hole 13,23 that respectively has left and right L shaped contiguous block 11,21 ends of concentric fulcrum 62 confessions before and after it forms therewith and is rotatably connected, screw in its screw 64 with forward and backward each bolt 17,27, form and left and

right hand lever

10,20 hinged relationship; Pull bar 30 is the screw rod that a sufficient length has external screw thread 35, pass the through hole 63 of B-C post 60 from lower to upper, pass down the mesopore 72 of tray 70 again, be inserted in a compression spring 53, be connected with an adjustment nut 50 at last, the below of compressing spring 53 this moment is by projection 71 supports of tray 70 down, and the top is then inserted and adjusted nut 50 accommodation spaces 52, suitably screw and adjust nut 50, keep compression spring 53 to be in compressive state; Pull bar 30 lower ends are provided with H type contiguous block 31, through hole 33 and screw 34 that its left-right symmetry respectively is provided with a notch 32 and is communicated with; About each push rod 40, be provided with the structure of through hole 41 for the suitable length two ends, upper end through hole 41 is respectively inserted left and right contiguous block 11,21 split sheds 12, in 22, through hole 41, the screw 16,26 of bolt 14,24 connecting through holes 15,25 and push rod 40, formation is rotatably connected, lower end through hole 41 is inserted respectively in pull bar 30 lower end H type contiguous block 31 left and right sides grooves 32, and two bolts 36 pass the through hole 41 and the screw 34 of through hole 33, push rod 40, and formation is rotatably connected.

Suitably screw the adjustment nut 50 of top, to compress spring is pushed into down tray 70 for 53 times and presses close to center pillar 60, the H type contiguous block 31 of last pull bar 30 is to push rod 40, upwards withstand left and right L type contiguous block 11,21, make left and

right hand lever

10,20 under no external force effect, with its end through hole 13,23 is the center rotation, make tray 70 down be close to the upper end at through hole 13,23 places on plane and left and right L type contiguous block 11,21 on the jacking block 61 of B-C post 60, at this moment left and

right hand lever

10,20 is similar to horizontal, for using the original state before the utility model is done body building; Hold special left and

right hand lever

10,20 handles 80 when both hands and firmly be bent downwardly, B-C post 60 will on push tray 70, and the H type contiguous block 31 of push rod 40 lower push-pull bars 80, cause adjustment nut 50 to move down, compressed spring 58 and made it produce resistance, reach the purpose of body building; Can regulate the initial position of adjusting nut 50, the size of regulating crooked torsion according to sport and body-building person's s own situation.

Claims

1. torsion-adjustable linkage, comprise a pair of left and right hand lever, it is characterized in that: the inboard of described left and right hand lever (10,20) respectively is connected with the crooked left and right contiguous block (11,21) in an inside below, and the front and back fulcrum of the B-C post (60) of the end of left and right contiguous block (11,21) and a band longitudinal hole is hinged; The place is hinged with the upper end of two push rods (40) respectively in the middle of the described left and right contiguous block (11,21), the lower end of push rod (40) is hinged with the pull bar (30) of a lower end band lower connecting block (31) respectively, the through hole of described B-C post (60) is passed in the upper end of pull bar (30), forms with an adjustment nut (50) to be threaded; Be provided with compression spring (53) between described B-C post (60) and the nut, compression spring (53) has down tray (70).

2. torsion-adjustable linkage according to claim 1 is characterized in that: being shaped as of described left and right contiguous block (11,21) is L shaped, and the below is provided with middle opening (12,22).

3. torsion-adjustable linkage according to claim 1 and 2 is characterized in that: described lower connecting block (31) be shaped as H shape.

4. torsion-adjustable linkage according to claim 3 is characterized in that: described left and right hand lever (10,20) outboard end is equipped with the handle (80) that makes things convenient for hand to grip.