CN103933702A

CN103933702A - Torsion adjusting mechanism

Info

Publication number: CN103933702A
Application number: CN201410164807.9A
Authority: CN
Inventors: 王玉芳
Original assignee: ZHEJIANG LIJIA SPORTS EQUIPMENT CO Ltd
Current assignee: ZHEJIANG LIJIA SPORTS EQUIPMENT CO Ltd
Priority date: 2014-04-23
Filing date: 2014-04-23
Publication date: 2014-07-23
Anticipated expiration: 2034-04-23
Also published as: CN103933702B

Abstract

Disclosed is a torsion adjusting mechanism. A crank mandrel is arranged in a bottom bracket, a knuckle bearing is inserted in the bottom bracket, the inner ring of the knuckle bearing is inserted in the crank mandrel, the right end face of the inner ring of the knuckle bearing is pressed on the mandrel step, the right end face of the outer ring of the knuckle bearing is pressed on the bottom bracket step, a hole clamping spring is clamped in a bottom bracket annular groove, the left end of the outer ring of the knuckle bearing is pressed on the right end face of the hole clamping spring, a casing pipe is inserted in the crank mandrel and the hole clamping spring, a gasket is pressed on the left end face of the casing pipe, the right end face of the casing pipe is pressed on the left end face of the inner ring of the knuckle bearing, an elastic washer is pressed on the gasket, an umbrella head hexagon socket screw is connected to the crank mandrel in a threaded mode, the cap portion of the umbrella head hexagon socket screw is pressed on the spring washer, and the radius of the casing pipe is smaller than the outer diameter of the inner ring of the knuckle bearing. When the torsion adjusting mechanism adjusts torsion between a crankshaft and a foot rest lever, rotation between the crankshaft and the foot rest lever is smoother, and the comfort of a user in the bodybuilding process is improved.

Description

A kind of torque force adjusting mechanism

technical field:

The present invention relates to body-building apparatus technical field, more specifically to torque force adjusting mechanism used on a kind of body-building apparatus.

background technology:

As shown in Figure 1, there is on the market at present a kind of foot-operated waving to rock fitness equipment, on its pedal tube A1, be fixed with five-way A2, five-way A2 and pedal tube A1 are fixed together, the crank axle of crank A3 is just hinged on five-way A2 by the mode of sleeve, five-way A2 with crank axle be connected because all errors are not often accomplished desirable concentricity because a little deviation feeling immediately will produce body-building time.

summary of the invention:

Object of the present invention is exactly the deficiency for prior art, and a kind of torque force adjusting mechanism is provided, and it is regulating between crank and pedal tube in torsion, make to rotate between crank and pedal tube more smooth, comfort when raising user body-building.

Technology solution of the present invention is as follows:

A kind of torque force adjusting mechanism, comprise pedal tube and crank, on pedal tube, be welded with five-way, on crank, be fixed with crank axle, in crank axle, form axle step, on the inwall of five-way, form five-way step and five-way annular groove, crank axle is placed in five-way, oscillating bearing sleeve is in five-way, the inner ring sleeve of oscillating bearing in crank axle and the right side of the inner ring of oscillating bearing be pressed against axle step, the right side of the outer ring of oscillating bearing is pressed against on five-way step, hole is fastened in five-way annular groove with jump ring, the left end of the outer ring of oscillating bearing is pressed over hole with on the right side of jump ring, sleeve pipe sleeve is used in jump ring with hole in crank axle, pad is pressed on the left side of sleeve pipe, the right side of sleeve pipe is pressed on the left side of inner ring of oscillating bearing, bullet pad is pressed on pad, umbrella head hexagon socket head cap screw is screwed onto in crank axle and the cap portion of umbrella head hexagon socket head cap screw is pressing bullet pad, the external diameter of sleeve pipe is less than the external diameter of the inner ring of oscillating bearing.

Beneficial effect of the present invention is:

It is regulating between crank and pedal tube in torsion, make to rotate between crank and pedal tube more smooth, comfort when raising user body-building.

brief description of the drawings:

Fig. 1 is the introduction figure of prior art;

Fig. 2 is perspective exploded view of the present invention; ;

Fig. 3 is structure intention of the present invention;

Fig. 4 is operation principle key diagram of the present invention.

In figure: 1, oscillating bearing; 2, hole jump ring; 3, sleeve pipe; 4, pad; 5, bullet pad; 6, umbrella head hexagon socket head cap screw; 7, five-way; 71, five-way annular groove; 72, five-way step; 8, crank axle; 81, axle step; 9, crank; 10, pedal tube.

detailed description of the invention:

Embodiment: see Fig. 2, shown in 3, a kind of torque force adjusting mechanism of a kind of torsion, comprise pedal tube 10 and crank 9, on pedal tube 10, be welded with five-way 7, on crank 9, be fixed with crank axle 8, in crank axle 8, form axle step 81, on the inwall of five-way 7, form five-way step 72 and five-way annular groove 71, crank axle 8 is placed in five-way 7, oscillating bearing 1 sleeve is in five-way 7, the inner ring sleeve of oscillating bearing 1 in crank axle 8 and the right side of the inner ring of oscillating bearing 1 be pressed against axle step 81, the right side of the outer ring of oscillating bearing 1 is pressed against on five-way step 72, hole is fastened in five-way annular groove 71 with jump ring 2, the left end of the outer ring of oscillating bearing 1 is pressed over hole with on the right side of jump ring 2, sleeve pipe 3 sleeves are used in jump ring 3 with hole in crank axle 8, pad 4 is pressed on the left side of sleeve pipe 3, the right side of sleeve pipe 3 is pressed on the left side of inner ring of oscillating bearing 1, bullet pad 5 is pressed on pad 4, umbrella head hexagon socket head cap screw 6 is screwed onto in crank axle 8 and the cap portion of umbrella head hexagon socket head cap screw 6 is pressing bullet pad 5, the external diameter of sleeve pipe 3 is less than the external diameter of the inner ring of oscillating bearing 1.

Operation principle: as shown in Figure 4, in real work, often crank axle 8 concentric runnings different from five-way 7, this is because pedal tube 10 has been subject to trampling of external force, and five-way 7 and crank axle 8 can not be rotated by coaxial inner conductor, at this moment, the bearing function of oscillating bearing 1 self, rotates pedal tube 10 flexing handle axles 8 more smooth and easy, just can not produce while rotation in prior art and produce and feel immediately, give the uncomfortable sensation of people, thereby improve user's body-building experience pleasant sensation and comfort.

Claims

1. a torque force adjusting mechanism, comprise pedal tube (10) and crank (9), on pedal tube (10), be welded with five-way (7), on crank (9), be fixed with crank axle (8), it is characterized in that: in crank axle (8), form axle step (81), on the inwall of five-way (7), form five-way step (72) and five-way annular groove (71), crank axle (8) is placed in five-way (7), oscillating bearing (1) sleeve is in five-way (7), the right side of the inner ring of the inner ring sleeve of oscillating bearing (1) and oscillating bearing (1) upper in crank axle (8) is pressed against axle step (81), the right side of the outer ring of oscillating bearing (1) is pressed against on five-way step (72), jump ring for hole (2) is fastened in five-way annular groove (71), the left end of the outer ring of oscillating bearing (1) is pressed on the right side of jump ring for hole (2), sleeve pipe (3) sleeve is upper and for hole in jump ring (3) in crank axle (8), pad (4) is pressed on the left side of sleeve pipe (3), the right side of sleeve pipe (3) is pressed on the left side of inner ring of oscillating bearing (1), bullet pad (5) is pressed on pad (4), umbrella head hexagon socket head cap screw (6) is screwed onto crank axle (8) cap portion upper and umbrella head hexagon socket head cap screw (6) and is pressing bullet pad (5), the external diameter of sleeve pipe (3) is less than the external diameter of the inner ring of oscillating bearing (1).