CN208069882U - The health-care bicycle of adjustable backrest chair - Google Patents

Abstract

The utility model is related to a kind of health-care bicycles of adjustable backrest chair, including vehicle frame, it is characterized in that：The frame five-through is connected with transfer gear shaft coupling set, transfer gear shaft coupling set has transfer gear axis by bearing support, transfer gear axis one end is linked with transfer gear, intermediate gear shaft fitting sleeve is connected on vehicle frame, intermediate gear shaft fitting sleeve has intermediate gear shaft by bearing support, intermediate gear shaft is linked with intermediate gear, vehicle frame is connected with driving gear shaft fitting sleeve, driving gear shaft fitting sleeve has driving gear shaft by bearing support, driving gear shaft is linked with driving gear, the driving gear, intermediate gear is engaged with transfer gear, the transfer gear axis other end is linked with big sprocket wheel, big sprocket wheel is connect by chain with flywheel.Advantageous effect：Using the backrest seat of forward-backward adjustable, bicycle disease is prevented.The drive mechanism being combined is driven with Chain items using gear drive, suitable for the bicyclist of various heights.

Description

The health-care bicycle of adjustable backrest chair

Technical field

The utility model belongs to bicycle more particularly to a kind of health-care bicycle of adjustable backrest chair

Background technology

(electric vehicle, sport(s) car, carriage for children, tricycle ... all people's power scrunch vehicle) of existing bicycle class all uses three Angle saddle.The saddle is stuck in the crotch of bicyclist, and the total weight of human body all oppresses the HUIYIN acupoint in people and its urethra in front Critical position can more make hemorrhoid patients or menstrual woman bring pain because the portion suffers oppression or rubs, and with the passing of time oppressing also can be to Bicyclist causes serious damage or lesion, i.e. bicycle disease.Existing bicycle is all to scrunch up and down, and the dynamics scrunched is entirely by double Leg is exerted oneself, so it is very tired to ride.Patent document number 2721500Y discloses a kind of saddle back seat dual-purpose bicycle, including Framed shape vehicle frame, vehicle frame have a crossbeam, and the front end of crossbeam is connected with three-way pipe, and the rear end of crossbeam is connected with vertical beam, three-way pipe and vertical beam Lower end is connected with preceding cant beam, and the rear end of preceding cant beam is connected with rear vehicle fork, and the outer end of rear vehicle fork and the upper end of vertical beam are connected with rear cant beam, threeway Front vehicle fork is inserted in pipe, the upper end of front vehicle fork has handlebar, the lower end of front vehicle fork to have front vehicle wheel, there is rear wheel, front truck on rear vehicle fork Wheel is 14 or 16 inches of bicycle quick, and there are axis, the both ends of axis in the vertical beam lower end and cant beam intersection of central frame beam lower part There is pedal arm respectively, there is sprocket wheel, chain gearing, the upper end tube nozzle of vertical beam to be connected with striding type saddle between axis and rear vehicle shaft Seat, riding type saddle seat lower section has standpipe, standpipe to be inserted in the upper end tube nozzle of vertical beam, has drive axle frame in the front of three-way pipe, preceding There are drive axle, the both ends of drive axle to have pedal arm respectively on driving pedestal, it is characterised in that：Have between handlebar and three-way pipe more Point location screw has front column on crossbeam, is connected with the slideway of two horizontal directions parallel to each other on front column, slideway with It is connected with rear column between rear vehicle shaft, chair is connected on slideway, has below chair and the matched sliding block of slideway, chair Backboard be hinged and connected and formed by two sections of lower backboard and upper backboard, seat board and backboard are to be hinged and connected composition, There is the Jie sprocket wheel coaxial with axis on axis, has sprocket wheel, chain gearing between Jie's sprocket wheel in drive axle and axis.

Utility model content

The utility model is to provide a kind of health care of adjustable backrest chair voluntarily to overcome deficiency in the prior art Vehicle after being changed to seat, disappears the pressure of people's crotch, you can prevented the generation of bicycle disease；Axis, crank, pedal are set Meter Forward, is changed direction firmly, is had an effect and ridden using backrest when scrunching, can scrunched by the strength of whole body.

The utility model to achieve the above object, is achieved through the following technical solutions, a kind of health care of adjustable backrest chair Bicycle, including vehicle frame and backrest seat, it is characterized in that：Chain drive is equipped at the frame five-through, the chain passes Motivation structure includes that pedal and crank, big sprocket wheel, flywheel, chain and active axis, the frame five-through are connected with transfer gear axis Fitting sleeve, the transfer gear shaft coupling set have transfer gear axis, transfer gear axis one end to be linked with by bearing support Transfer gear is connected with intermediate gear shaft fitting sleeve on vehicle frame, and the intermediate gear shaft fitting sleeve has centre by bearing support Gear shaft, the intermediate gear shaft are linked with intermediate gear, and the vehicle frame is connected with driving gear shaft fitting sleeve, the driving tooth Wheel shaft fitting sleeve has a driving gear shaft by bearing support, and the driving gear shaft is linked with driving gear, the driving gear, Intermediate gear is engaged with transfer gear, and the transfer gear axis other end is linked with big sprocket wheel, and big sprocket wheel passes through chain and flywheel Connection.

The backrest seat slides adjusting before and after realizing two-orbit by the seat slide being fixed in Rear frame.

The driving gear, intermediate gear and transfer gear transmission ratio are 1:1:1.

The crank is open type arc-shaped structure.

Advantageous effect：Compared with prior art, the utility model by triangle saddle be changed to can forward-backward adjustable back seat The backrest of chair, seat withstands on the waist of bicyclist, is had an effect and is ridden using backrest when scrunching, and can be scrunched by the strength of whole body, far Way, which is ridden, does not think very tired yet.In order to coordinate the improvement of seat, uses front gear drive and mutually tied for the transmission of Chain items below The drive mechanism of conjunction makes axis and rear axle lengthening distance, can be suitable for the bicyclist of various heights by the adjusting of seat. Use scope is very wide.

Description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the vertical view of Fig. 1.

In figure：1, backrest seat, 2, seat slide, 3, driving gear, 4, transfer gear, 5, big sprocket wheel, 6, flywheel, 7, chain Item, 8-1, gear shaft fitting sleeve, 8-2, intermediate gear shaft fitting sleeve, 8-3, driving gear shaft fitting sleeve, 9, driving gear shaft, 9- 1, transfer gear axis, 10, crank, 11, intermediate gear shaft, 12, pedal, 13, seat fix shank of the key, 14, vehicle frame, 15, center tooth Wheel.

Specific implementation mode

Below in conjunction with preferred embodiment, to according to specific implementation mode provided by the utility model, details are as follows：

Attached drawing 1 is referred to, present embodiment discloses a kind of health-care bicycle of adjustable backrest chair, including vehicle, 14 and backrest Seat 1 is equipped with chain drive at the frame five-through, and the chain drive includes pedal 12 and crank 10, big chain Wheel 5, flywheel 6, chain 7 and active axis 9, the frame five-through are connected with transfer gear shaft coupling set 8-1, the transfer gear Shaft coupling set has a transfer gear axis 9-1 by bearing support, and transfer gear axis one end is linked with transfer gear 4, on vehicle frame It is connected with intermediate gear shaft fitting sleeve 8-2, the intermediate gear shaft fitting sleeve has intermediate gear shaft 11 by bearing support, described Intermediate gear shaft is linked with intermediate gear 15, and the vehicle frame is connected with driving gear shaft fitting sleeve 8-3, and the driving gear shaft connects Headgear has driving gear shaft 9, the driving gear shaft to be linked with driving gear 3, the driving gear, centre by bearing support Gear is engaged with transfer gear constitutes front gear transmission structure；The transfer gear axis other end is linked with big sprocket wheel 5, big chain Wheel connects and composes Chain drive mechanism below by chain 7 with flywheel 6.The crank is open type arc-shaped structure.

The preferred embodiment of the present embodiment is that the backrest seat is realized double by the seat slide 2 being fixed in Rear frame Adjusting is slided before and after track, and shank of the key 13 is fixed by seat after adjustment and is locked.

The preferred embodiment of the present embodiment is that the driving gear, intermediate gear and transfer gear transmission ratio are 1:1:1.

Operation principle

Backrest is the booster scrunched in riding, and seat is front and back on two-orbit to slide adjusting, is adjusted by stature height Locking after comfortable, which clamps the structure of saddle compared with existing bicycle in single tube upper end, not only simple but also firm, from structure Ensure that seat is not crooked, does not twist, and durable lasting, long lifespan.(general everyone only needs to adjust once) scrunches When be unlikely to card thigh, so axis, crank, pedal design Forward (to change direction firmly).Its crank in order not to It is swung when interfering front-wheel steer, it is arc-shaped to be designed as open type.The distance between the pedal and axis of the present embodiment 165mm.It is left Distance is 450mm between right crank.Vehicle frame uses cast aluminium alloy gold technique.Car body is short and small flexibly, the vehicle of 20 inch wheel footpaths.

Above-mentioned reference embodiment is illustrative to a kind of detailed description that the health-care bicycle of adjustable backrest chair carries out Without being restrictive, several embodiments can be enumerated according to limited range, therefore total not departing from the utility model Change and modification under body design, should belong within the scope of protection of the utility model.

Claims (4)

1. a kind of health-care bicycle of adjustable backrest chair, including vehicle frame and backrest seat, it is characterized in that：At the frame five-through Equipped with chain drive, the chain drive includes pedal and crank, big sprocket wheel, flywheel, chain and active axis, institute It states frame five-through and is connected with transfer gear shaft coupling set, the transfer gear shaft coupling set has transfer gear by bearing support Axis, transfer gear axis one end are linked with transfer gear, and intermediate gear shaft fitting sleeve, the intermediate gear are connected on vehicle frame Shaft coupling set has intermediate gear shaft, the intermediate gear shaft to be linked with intermediate gear by bearing support, and the vehicle frame is connected with Driving gear shaft fitting sleeve, the driving gear shaft fitting sleeve have driving gear shaft, the driving gear shaft by bearing support It is linked with driving gear, the driving gear, intermediate gear are engaged with transfer gear, and the transfer gear axis other end is linked with Big sprocket wheel, big sprocket wheel are connect by chain with flywheel.

2. the health-care bicycle of adjustable backrest chair according to claim 1, it is characterized in that：The backrest seat passes through solid The seat slide being connected in Rear frame slides adjusting before and after realizing two-orbit.

3. the health-care bicycle of adjustable backrest chair according to claim 1, it is characterized in that：The driving gear, centre Gear and transfer gear transmission ratio are 1:1:1.

4. the health-care bicycle of adjustable backrest chair according to claim 1, it is characterized in that：The crank is justified for open type Arcuate structure.