CN2321702Y - Pedal, crank and chain wheel linkage device - Google Patents

Abstract

The utility model discloses a linkage device with pedals, a crank and a chain wheel, which is mainly used as a power supply for various bicycles or pleasure boats on water. A linkage device with pedals, a crank and a chain wheel is characterized in that a frame is respectively provided with a pedal driving wheel, a chain wheel, a chain matched with the chain wheel and a chain wheel for outputting power; a drive spoke is arranged between the pedal driving wheel and the chain wheel; a shaft which is provided with the chain wheel for outputting power is provided with a ratchet; a ratchet pawl matched with the ratchet is movably connected with a sleeve barrel; one end of the sleeve barrel is sheathed on the shaft, and the other end is plugged with a telescopic arm; the outer end of the telescopic arm is movably connected with the chain. The utility model has the advantages high speed, big power, time saving, labor saving, etc.

Description

Foot-operated rocking arm sprocket wheel linkage

The utility model belongs to a kind of outputting power device, and particularly a kind of foot-operated rocking arm sprocket wheel linkage mainly is applicable to manpower driving arrangements such as pleasure-boat waterborne, various bicycles.

Existing pleasure-boat waterborne, bicycle etc. are power mostly with the manpower, promptly adopt foot-operated mode to drive it and advance, and drive screw propeller by chain or other transmission width of cloth or bicycle rear rotates as the pedal wheel of driving wheel.Its shortcoming is that speed ratio is little, speed of advance is slow, in order to improve speed of advance, must frequently accelerate the revolution of pedal wheel, wastes time and energy.

The purpose of this utility model provides that a kind of output revolutions height, power that is mainly used on the equipment such as pleasure-boat waterborne, various rickshaws greatly, promptly saves time and the foot-operated rocking arm sprocket wheel linkage in labour-saving.

Technical solution of the present utility model is: a kind of foot-operated rocking arm sprocket wheel linkage, it is characterized in that being separately installed with on the frame foot-operated driving wheel, sprocket wheel, with the chain and the outputting power sprocket wheel of sprocket wheel coupling, be provided with the transmission width of cloth between foot-operated driving wheel and the sprocket wheel, on the axle of installation outputting power sprocket wheel ratchet is housed, flexibly connect with the ratchet and the sleeve of ratchet coupling, one end of sleeve is sleeved on the axle, and the other end is fitted with telescopic boom, and the external end head of telescopic boom and chain flexibly connect.Described sprocket wheel reaches with the chain of its coupling and at right angles controls.Described sprocket wheel, chain, ratchet, ratchet, sleeve, telescopic boom are two groups, are located at the both sides of the stay bearing plate in the frame respectively.The transmission width of cloth between described foot-operated driving wheel and the sprocket wheel is chain gear.

The utility model compared with prior art because driving wheel 2 by transmission width of cloth drive sprocket 7 and drive sprocket wheel 19 rotations coaxial with sprocket wheel 7, makes sprocket wheel 6,14 and chain 13 high-speed motion thereupon.Again by the rocking arm formed by sleeve 8, telescopic boom 12 and ratchet 10, ratchet 11 drive axle 18 and on big specification outputting power sprocket wheel 9 rotate, so have advantages such as speed ratio is big, output speed is high, power is big, time saving and energy saving.

Below in conjunction with the drawings and the specific embodiments the utility model is further described.

Fig. 1 is the drive mechanism scheme drawing of the utility model specific embodiment.

Fig. 2 is the schematic top plan view of the utility model specific embodiment.

Fig. 3 is that K shown in Figure 1 is to view.

As shown in Figure 1, 2: 1 is frame, can adopt the steel plate welding production, also can adopt casting, and a stay bearing plate 20 is arranged in the frame 1, and stay bearing plate 20 is structure as a whole with frame 1.Front end in frame 1 is equipped with driving wheel 2, driving wheel 2 is a sprocket wheel, the number of teeth is 90, connect with its axle key, can be provided with antifriction-bearing box between axle and the frame 1, the two ends of axle connects with pivoted arm 3 dowel fixes, and the other end activity of pivoted arm 3 is connected with pedal 4, when commentaries on classics pedal 4 is stepped in the bipod connection, but driving wheel 2 continuous rotation.Be provided with chain 5 between driving wheel 2 and the sprocket wheel 7.Sprocket wheel 7 numbers of teeth are 13, and are coaxially installed on (referring to Fig. 3) on the stay bearing plate 20 with sprocket wheel 19, are provided with antifriction-bearing box between its axle and the stay bearing plate 20, two ends cantilever and two sprocket wheels 19 of key connecting of axle.Be positioned on the sprocket wheel 19 top stay bearing plates 20 two coaxial sprocket wheels 6 are housed, be provided with antifriction-bearing box between its axle and the stay bearing plate 20.In the rear end of frame 1, with sprocket wheel 6 equal-height positions two coaxial sprocket wheels 14 are housed on the stay bearing plate 20, are provided with antifriction-bearing box between its axle and the stay bearing plate 20.Chain 13 and sprocket wheel 19,6,14 couplings.The number of teeth of sprocket wheel 19,6,14 is 20.In order to make chain 13 have enough predetermincd tensions, be connected with adjustable contact roller 15 at stay bearing plate 20 head bearings, to adjust the tightness of chain 13.

Stay bearing plate 20 head bearings in the described frame 1 are connected with axle 18, and binding is connected to outputting power sprocket wheel 9 on the axle 18, and its number of teeth is 200.The two ends of axle 18 lay respectively at the both sides and the cantilever of stay bearing plate 20, with ratchet 11 key connecting, and termination and sleeve 8 sockets, ratchet 10 that connects with sleeve 8 rotating shafts and ratchet 11 couplings.The other end of sleeve 8 is inserted with telescopic boom 12, and the external end head of telescopic boom 12 connects with chain 13 rotating shafts.Above-mentioned sprocket wheel 19,6,14, chain 13, ratchet 11, ratchet 10, sleeve 8, telescopic boom 12 form two groups of structures, lay respectively at the both sides (referring to Fig. 2) of stay bearing plate 20.Outputting power sprocket wheel 9 and chain 17 couplings just can drive other equipment.At stay bearing plate 20 head bearings contact roller 16 is housed, to adjust the tensile force of chain 17.

Its working process is as follows: when utilizing the foot-operated pedal 4 of manpower that driving wheel 2 is rotated, rotate by chain 5 drive sprockets 7, two gear ratios are 90: 13, and promptly the revolution of sprocket wheel 7 increases with respect to driving wheel 2 revolutions.Because sprocket wheel 7 is coaxial with sprocket wheel 19, and the number of teeth of sprocket wheel 19 is 20, when sprocket wheel 19 rotates with sprocket wheel 7, its heel row of teeth place linear velocity increases again to some extent with respect to sprocket wheel 7, and by chain 13 drive sprocket wheels 6,14 high-speed motions, this moment is by telescopic boom 12, the rocking arm that sleeve 8 is formed is swung with the motion of chain 13, ratchet 10 is just with sleeve 8 actions, and promotion ratchet 11 rotates, thereby driven axle 18 and driven 9 rotations of outputting power sprocket wheel, be exportable high-speed by chain 17 again, high-performance power, the power as equipment such as water craft screw propeller or bicycles has advantages such as time saving and energy saving.

Claims (4)

1. foot-operated rocking arm sprocket wheel linkage, it is characterized in that: be separately installed with foot-operated driving wheel [2] on the frame [1], sprocket wheel [19,6,14], with sprocket wheel [19,6,14] Pi Pei chain [13] and outputting power sprocket wheel [9], foot-operated driving wheel [2] and sprocket wheel [19,6,14] be provided with the transmission width of cloth between, on the axle [18] of installation outputting power sprocket wheel [9] ratchet [11] is housed, flexibly connect with sleeve [8] with the ratchet [10] of ratchet [11] coupling, one end of sleeve [8] is sleeved on the axle [18], the other end is fitted with telescopic boom [12], and the external end head of telescopic boom [12] and chain [13] flexibly connect.

2. foot-operated rocking arm sprocket wheel linkage according to claim 1 is characterized in that: described sprocket wheel [19,6,14] reaches with the chain [13] of its coupling and at right angles controls.

3. foot-operated rocking arm sprocket wheel linkage according to claim 1 and 2, it is characterized in that: described sprocket wheel [19,6,14], chain [13], ratchet [11], ratchet [10], sleeve [8], telescopic boom [12] are two groups, are located at the both sides of the stay bearing plate [20] in the frame [1] respectively.

4. foot-operated rocking arm sprocket wheel linkage according to claim 3 is characterized in that: the transmission width of cloth between described foot-operated driving wheel [2] and the sprocket wheel [19,6,14] is chain gear.

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