A kind of exercise bicycle
Technical field
The invention belongs to body building car structure technical field.
Background technology
Exercycle, also referred to as cycle ergometer, is divided into vertical type, backrest-type exercycle two kinds, can adjusts intensity during motion, play the effect of body-building, so people call exercycle it.The aerobic fitness equipment belonging to typical simulation outdoor exercises is also called as cardiorespiratory training equipment.Mainly by the health long period, the motion of suitable intensity promotes cardiovascular motion, accelerates metabolism, strengthens heart and lung functions, thus improves the physique of human body.Existing body building car structure is comparatively complicated, and parts are various, and assembling trouble, production cost is high.Seat adjustment in addition on exercycle is inconvenient.
Summary of the invention
The object of the invention is: the deficiency existed for prior art, provide that a kind of structure is comparatively simplified, body frame structure for automotive is firm, the body-building foot pedal bassinet structure that seat is easy to adjust.
For realizing the object of the present invention, being achieved by the following technical solutions: a kind of exercise bicycle, includes vehicle frame, being arranged on the seat unit on vehicle frame, be arranged on the damping unit below vehicle frame seat device, and be arranged on the headstock of vehicle frame front portion.
Described vehicle frame includes bottom bar, is connected to the arm Connection Block below bottom bar front and back ends portion, be also connected with between bottom bar rearward end and the arm Connection Block upper end below it one be obliquely installed towards the vehicle frame back lower place raise arm; Raise the angle of formation 120 degree between arm and bottom bar.Raise arm bottom bar rear end is raised, facilitate the connection of bottom bar and other parts.
Be connected with arm after a front arm and respectively by bolt below the arm Connection Block of the forward and backward end of bottom bar, the two ends of front arm are connected with two front bearings, and the two ends of rear arm are connected with two rear supports.
Described front arm is the hollow tube of end face ovalize, and the two ends of front arm are respectively equipped with limited bayonet, and front bearing is provided with the location dop coordinating with limited bayonet and locate.Before end surfaces ovalize, facilitate its location with arm Connection Block like this and be connected, described front arm and front bearing are coordinated by limited bayonet and location dop, are connected and fixed convenience.
Be connected with a headstock tube connector above the leading section of described bottom bar, headstock tube connector tilts to vehicle frame front upper place, and forms the angle of 130 degree between headstock tube connector and bottom bar.
Be connected with a seat attachment tubes above the middle part of described bottom bar, seat attachment tubes lower end runs through bottom bar and one connects with it; The angle of 70 degree is formed between seat attachment tubes and bottom bar.
Seat attachment tubes sidewall is connected with an axle bed pipe towards the side in vehicle frame front, is also connected with an axle bed reinforcing pipe between the seat attachment tubes below axle bed pipe front end and axle bed pipe.
Bottom bar is positioned at seat attachment tubes rear and is connected with a stay pipe, stay pipe upper end is run through described seat attachment tubes and is connected with axle bed pipe, and stay pipe and seat attachment tubes connect as one simultaneously.Such seat attachment tubes and axle bed pipe and bottom bar are connected firmly, Stability Analysis of Structures.
Rear bottom bar being positioned at stay pipe is connected with two flywheel mount pads, and on bottom bar, the rear of flywheel mount pad is connected with a power connection seat.
Described bottom bar, raise the rectangular steel pipe that arm is identical bore; Described axle bed pipe, axle bed reinforcing pipe and stay pipe are rectangular steel pipe; Described headstock tube connector and seat attachment tubes are round steel pipe; Described flywheel mount pad is the steel profile that end face takes the shape of the letter U.
Described headstock includes headstock mounting pipe, is arranged on control panel and the handrail on headstock mounting pipe top;
Described headstock mounting pipe lower end is the lower link be socketed with headstock tube connector upper end, is connected by screw between lower link and headstock tube connector, and lower link and headstock tube connector link position overcoat have the sheathing of a plastic material; The upper end that headstock mounting pipe is positioned at lower link is a bent portion; Bent portion upper end bends towards vehicle frame rear direction; Headstock mounting pipe top is provided with a handrail fixture towards the side at vehicle frame rear, and the top and the bottom of handrail fixture are respectively provided with a handrail fixing threaded hole.
Handrail fixture is connected with a handrail compressing member, described handrail is positioned between handrail fixture and handrail compressing member; Handrail compressing member top is connected with the handrail fixing threaded hole on handrail fixture top by a screw, and handrail compressing member bottom is connected with the handrail fixing threaded hole of handrail fixture bottom by a bolt knob; Bolt knob includes a bolt part and is integrally connected to the plastics knob of bolt part rear end, and on bolt part, cover has a clamping sleeve, and clamping sleeve two ends offset with bolt knob, handrail compressing member respectively.Can adjust the angle of handrail easily after unclamping bolt knob like this.
Described handrail includes the horizontally disposed first bar section be positioned between handrail fixture and handrail compressing member, and being connected to the second bar section at the first bar section two ends, the 3rd bar section, the 4th bar section, the 5th bar section and the 6th bar section in turn, each bar section junction of described handrail is that arc transition connects; Described second bar section is vertical with the first bar section, 3rd bar section and the first bar section, the second bar section are all vertical, 4th bar Duan Yu tri-bar section is vertical and the 4th bar section is positioned at the second bar section top position, and the 6th bar section and the first bar section are parallel to each other, and the 6th bar section end of both sides is arranged in opposite directions.Handrail includes above-mentioned Multi section bar section, facilitates user to lean against in the bar section of correct position with hobby by hand steered as required, ensures the comfortableness used.
The 5th described bar section is provided with heart rate sensor.Finger fingertip can be pressed in heart rate sensor position to measure heart rate during motion by user.
Described headstock mounting pipe top is also connected with headstock front stall and the headstock back seat of the plastic material that two are connected, described headstock back seat sidewall offers the knob through hole passed for bolt knob, both sides, headstock back seat upper end are provided with two panel linking arms, two panel linking arms are connected with a panel bed by a bolt, the inner side of the corresponding panel linking arm of panel bed lower rear is provided with two articulated jibs, bolt is through two panel linking arms and two articulated jibs and fixed by locking nut, bolt is positioned at two panel linking arm outer fixs and is also arranged with two adjustment toothholders, outside bolt being positioned at regulating tooth seat is also arranged with two springs, described adjustment toothholder is inner locking with articulated jib, regulate on the toothholder wall relative with panel linking arm and be equipped with along the radially-arranged latch of bolt.
Described control panel is fixed by screws in the top of panel bed; The upper front part of panel bed is connected with U-shaped rib, and the front end face of U-shaped rib and control panel surrounds the article putting groove of a quadrangle jointly.Described control panel angle can adjust, and facilitates the user of different height can see when moving the kinematic parameter that the display of control panel shows.Described panel bed facilitates the installation and maintenance of control panel, and described article putting groove is used for the carry-on articles of holding mobile telephone, key one class.
Described panel bed and headstock back seat are also respectively equipped with line mouth and the cable-through hole excessively that supply the electric lead of connection control panel to pass.
The front end side wall of described headstock front stall is also connected with a hook, hook and the link of headstock front stall are pentagon, and pentagonal link is symmetrical, and one of them angle towards immediately below; Be hollow structure in hook, be provided with two reinforcements in hook, one of them reinforcement is vertically arranged, and another is arranged in the horizontal direction; The reinforcement of vertical setting is connected with two screw joint pins, and the outer end of screw joint pin exceeds the end face of described pentagonal link; Hook front upper is the hook body segment upwards extended, hook body segment and be also connected with a rinforcement bar between the screw joint pin of top.Described hook can be conveniently connected on headstock front stall by screw, and this hook structure is very firm, can hang knapsack, handbag etc. for user.
Described seat unit includes the seat arm being arranged on seat attachment tubes upper end and the seat be arranged on above seat arm, described seat arm sidewall offers multiple locating hole along its length, seat attachment tubes upper portion side wall has been threaded connection a screw knob, and the front end of screw knob coordinates locking with the locating hole on seat arm sidewall.The effective length of such seat arm can regulate.
Described seat attachment tubes upper end is inserted with the clamping cover of a plastic material, and the inside and outside wall of clamping cover is close to seat arm outer wall, seat attachment tubes inwall respectively.Clamping cover can not rock after making seat arm fixing.
The upper end of described seat arm is fixedly connected with a horizontally disposed chair mounted seat, on chair mounted seat, slip is provided with a seat slide, seat slide upper end is fixedly connected with a seat fixed bar, and described seat is fixedly connected on seat fixed bar upper end; Seat slide offers a bar hole along its length, chair mounted seat offers at least one connecting hole; Be equipped with a hold-down screw between bar hole and connecting hole, hold-down screw end is connected with a nut knob; Described nut knob is positioned at below chair mounted seat, hold-down screw is also arranged with a clamp sleeve, and clamp sleeve two ends offset with chair mounted seat lower end, nut knob respectively.After unclamping nut knob, seat slide can chair mounted seat slide anteroposterior relatively, and the front and back position of seat can regulate.
Described chair mounted seat and seat slide width end face are all in downward opening U-shaped; Seat arm upper end is also connected with the slide involucrum of a plastic material, and slide involucrum is made up of the halfbody of two symmetrical fastenings, and described chair mounted seat and seat slide are contained in slide involucrum.Slide involucrum makes under-seat structure brief, also avoids surprisingly being crushed by the gap between seat slide and chair mounted seat during adjustment seat.
Described damping unit includes the wheel shaft be rotatably connected on by bearing on axle bed pipe, is fixedly connected on the driving pulley on wheel shaft, is connected to the treadle at wheel shaft two ends and is connected to the pedal of treadle end; Also include the flywheel be arranged on the flywheel mount pad of vehicle frame, flywheel side is coaxially fixedly connected with a driven pulley, and driven pulley and driving pulley are in transmission connection by a driving-belt; Described flywheel is arranged on a free wheel base, and free wheel base bottom front and back ends is fixedly connected on flywheel mount pad by screw; Described free wheel base is installed with electromagnet, and flywheel periphery is provided with the permanent magnet coordinated with described electromagnet.
Described free wheel base sidewall is hinged with a pressing plate, pressing plate one end is fixedly connected with one and compresses wheel shaft, compress on wheel shaft and be connected with by bearing the contact roller that holds out against described driving-belt, contact roller shaft end is connected with a hold-down nut, is connected with an extension spring between the pressing plate other end and free wheel base.Described contact roller makes driving-belt and driving pulley, driven pulley closely cooperate non-slip.
Described power connection seat is provided with a switchboard, switchboard is provided with electric power connection line and power switch; Described axle bed reinforcing pipe is provided with a rectifier, position above described bottom bar between headstock tube connector and seat attachment tubes is provided with controller, described switchboard and rectifier input electrically connect, rectifier output end and controller electrically connect, and the electromagnet of controller and control panel, heart rate sensor and flywheel electrically connects respectively.
Described bottom bar and seat attachment tubes are fixedly connected with a plastic casing, plastic casing is made up of the halfbody of two symmetrical fastenings, and described bottom bar, seat attachment tubes, axle bed pipe, rectifier, controller, driving pulley and flywheel are all positioned at described plastic casing.When avoiding user to use exercise bicycle like this, shank or trousers and the parts such as driving pulley, driven pulley are touched and cause danger.
Compared with prior art, the invention has the beneficial effects as follows: this body building car structure is compact, parts are relatively less, easy to assembly, disassemble the little instant packed transport of rear volume.The components such as described seat, handrail and control panel all can conveniently regulate, and result of use is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of frame section.
Fig. 3 is the structural representation of front tube portion.
Fig. 4 is the structural representation of vehicle head part.
Fig. 5 is the structural representation of control panel part.
Fig. 6 is the structural representation of handrail fixed part.
Fig. 7 is the structural representation of hook portion.
Fig. 8 is the structural representation of armrest portion.
Fig. 9 is the structural representation of seat portion.
Figure 10 is the structural representation of damping unit part.
Figure 11 is the mounting structure schematic diagram of flywheel.
Figure 12 is the syndeton schematic diagram of contact roller part.
10, bottom bar; 11, front arm; 111, front bearing; 112, dop is located; 113, limited bayonet; 12, rear arm; 121, rear support; 13, arm Connection Block; 14, headstock tube connector; 15, axle bed pipe; 151, axle bed reinforcing pipe; 16, seat attachment tubes; 161, stay pipe; 17, flywheel mount pad; 18, power connection seat; 19, arm is raised;
20, headstock mounting pipe; 21, sheathing; 201, handrail fixture; 2011, handrail fixing threaded hole; 202, bent portion; 203, lower link;
30, link up with; 301, link; 302, reinforcement; 303, screw joint pin; 304, hook body segment; 305, rinforcement bar; 31, handrail; 311, first body of rod; 312, second body of rod; 313, the 3rd body of rod; 314, the 4th body of rod; 315, the 5th body of rod; 316, the 6th body of rod; 32, heart rate sensor; 33, headstock back seat; 331, panel linking arm; 332, cable-through hole; 333, knob through hole; 34, headstock front stall; 35, handrail compressing member; 36, bolt knob; 361, clamping sleeve; 37, panel bed; 371, U-shaped rib; 372, line mouth is crossed; 373, articulated jib; 38, control panel; 39, bolt; 391, spring; 392, toothholder is regulated; 393, locking nut;
41, screw knob; 42, clamping cover; 43, seat arm; 44, chair mounted seat; 441, connecting hole; 45, nut knob; 451, clamp sleeve; 452, hold-down screw; 46, seat slide; 461, bar hole; 462, seat fixed bar; 47, seat; 48, slide involucrum;
51, pedal; 52, treadle; 53, plastic casing; 54, flywheel; 541, free wheel base; 542, driven pulley; 55, driving pulley; 56, wheel shaft; 57, driving-belt; 58, contact roller; 581, pressing plate; 582, extension spring; 583, wheel shaft is compressed; 584, hold-down nut;
61, switchboard; 62, rectifier; 63, controller.
Detailed description of the invention
With reference to the accompanying drawings the specific embodiment of the present invention is made a detailed explanation below.
According to shown in Fig. 1 to Figure 12, a kind of exercise bicycle described in the present embodiment, includes vehicle frame, is arranged on the seat unit on vehicle frame, is arranged on the damping unit below vehicle frame seat device, and is arranged on the headstock of vehicle frame front portion.
As shown in Figure 2 and Figure 3, described vehicle frame includes bottom bar 10, be connected to the arm Connection Block 13 below bottom bar 10 front and back ends portion, be also connected with between bottom bar 10 rearward end and arm Connection Block 13 upper end below it one be obliquely installed towards the vehicle frame back lower place raise arm 19; Raise the angle forming 120 degree between arm 19 and bottom bar 10.Raise arm 19 bottom bar 10 rear end is raised, facilitate the connection of bottom bar 10 and other parts.
Be connected with arm 12 after a front arm 11 and respectively by bolt below the arm Connection Block 13 of the forward and backward end of bottom bar 10, the two ends of front arm 11 are connected with two front bearings 111, and the two ends of rear arm 12 are connected with two rear supports 121.
Described front arm 11 is the hollow tube of end face ovalize, and the two ends of front arm 11 are respectively equipped with limited bayonet 113, and front bearing 111 is provided with the location dop 112 coordinating with limited bayonet 113 and locate.Front arm 11 end face ovalize, facilitate its location with arm Connection Block 13 like this and be connected, described front arm 11 and front bearing 111 are coordinated by limited bayonet 113 and location dop 112, are connected and fixed conveniently.Described rear arm 12 is identical with the connected mode of front bearing 111 with front arm 11 with the connected mode of rear support 121.
Be connected with a headstock tube connector 14 above the leading section of described bottom bar 10, headstock tube connector 14 tilts to vehicle frame front upper place, and forms the angle of 130 degree between headstock tube connector 14 and bottom bar 10.
Be connected with a seat attachment tubes 16 above the middle part of described bottom bar 10, seat attachment tubes 16 lower end runs through bottom bar 10 and one connects with it; The angle of 70 degree is formed between seat attachment tubes 16 and bottom bar 10.
Seat attachment tubes 16 sidewall is connected with an axle bed pipe 15 towards the side in vehicle frame front, is also connected with an axle bed reinforcing pipe 151 between the seat attachment tubes 16 below axle bed pipe 15 front end and axle bed pipe 15.
Bottom bar 10 is positioned at seat attachment tubes 16 rear and is connected with a stay pipe 161, stay pipe 161 upper end is run through described seat attachment tubes 16 and is connected with axle bed pipe 15, and stay pipe 161 and seat attachment tubes 16 connect as one simultaneously.Such seat attachment tubes 16 and axle bed pipe 15 are connected firmly with bottom bar 10, Stability Analysis of Structures.
Rear bottom bar 10 being positioned at stay pipe 161 is connected with two flywheel mount pads 17, and on bottom bar 10, the rear of flywheel mount pad 17 is connected with a power connection seat 18.
Described bottom bar 10, raise the rectangular steel pipe that arm 19 is identical bore; Described axle bed pipe 15, axle bed reinforcing pipe 151 and stay pipe 161 are rectangular steel pipe; Described headstock tube connector 14 and seat attachment tubes 16 are round steel pipe; Described flywheel mount pad 17 takes the shape of the letter U and downward opening steel profile for end face.
As shown in Fig. 4 to Fig. 8, described headstock includes headstock mounting pipe 20, is arranged on control panel 38 and the handrail 31. on headstock mounting pipe 20 top
Described headstock mounting pipe 20 lower end is the lower link 203 be socketed with headstock tube connector 14 upper end, be connected by screw between lower link 203 and headstock tube connector 14, and lower link 203 and headstock tube connector 14 link position overcoat have the sheathing 21 of a plastic material; The upper end that headstock mounting pipe 20 is positioned at lower link 203 is a bent portion 202; Bent portion 202 upper end bends towards vehicle frame rear direction; Headstock mounting pipe 20 top is provided with a handrail fixture 201 towards the side at vehicle frame rear, and the top and the bottom of handrail fixture 201 are respectively provided with a handrail fixing threaded hole 2011.
Handrail fixture 201 is connected with a handrail compressing member 35, described handrail 31 is positioned between handrail fixture 201 and handrail compressing member 35; Handrail compressing member 35 top is connected by the handrail fixing threaded hole 2011 of a screw with handrail fixture 201 top, and handrail compressing member 35 bottom is connected by the handrail fixing threaded hole 2011 of a bolt knob 36 with handrail fixture 201 bottom; Bolt knob 36 includes a bolt part and is integrally connected to the plastics knob of bolt part rear end, and on bolt part, cover has a clamping sleeve 361, and clamping sleeve 361 two ends offset with bolt knob 36, handrail compressing member 35 respectively.Can adjust the angle of handrail 31 easily after unclamping bolt knob 36 like this.
Described handrail 31 includes the horizontally disposed first bar section 311 be positioned between handrail fixture 201 and handrail compressing member 35, and being connected to the second bar section 312 at the first bar section 311 two ends, the 3rd bar section 313, the 4th bar section 314, the 5th bar section 315 and the 6th bar section 316 in turn, each bar section junction of described handrail 31 is that arc transition connects; Described second bar section 312 is vertical with the first bar section 311,3rd bar section 313 is all vertical with the first bar section 311, second bar section 312,4th bar section 314 is vertical with the 3rd bar section 313 and the 4th bar section 314 is positioned at the second bar section 312 top position, 6th bar section 316 and the first bar section 311 are parallel to each other, and the 6th bar section 316 end of both sides is arranged in opposite directions.Handrail 31 includes above-mentioned Multi section bar section, facilitates user to lean against in the bar section of correct position with hobby by hand steered as required, ensures the comfortableness used.
The 5th described bar section 315 is provided with heart rate sensor 32.Finger fingertip can be pressed in heart rate sensor 32 position to measure heart rate during motion by user.
Described headstock mounting pipe 20 top is also connected with headstock front stall 34 and the headstock back seat 33 of the plastic material that two are connected, described headstock back seat 33 sidewall offers the knob through hole 333 passed for bolt knob 36, both sides, headstock back seat 33 upper end are provided with two panel linking arms 331, two panel linking arms 331 are connected with a panel bed 37 by a bolt 39, the inner side of the corresponding panel linking arm 331 of panel bed 37 lower rear is provided with two articulated jibs 373, bolt 39 is also fixed by locking nut 393 through two panel linking arms 331 and two articulated jibs 373, bolt 39 is positioned at two panel linking arm 331 outer fixs and is also arranged with two adjustment toothholders 392, outside bolt 39 being positioned at regulating tooth seat 392 is also arranged with two springs 391, described adjustment toothholder 392 is inner locking with articulated jib 373, regulate on toothholder 392 wall relative with panel linking arm 331 and be equipped with along the radially-arranged latch of bolt 39.
Described control panel 38 is fixed by screws in the top of panel bed 37; The upper front part of panel bed 37 is connected with U-shaped rib 371, and U-shaped rib 371 surrounds the article putting groove of a quadrangle jointly with the front end face of control panel 38.Described control panel 38 is provided with parameter and regulates button and kinematic parameter display screen.Described control panel 38 angle can adjust, and facilitates the user of different height can see when moving the kinematic parameter that the display of control panel 38 shows.Described panel bed 37 facilitates the installation and maintenance of control panel 38, and described article putting groove is used for the carry-on articles of holding mobile telephone, key one class.
Described panel bed 37 and headstock back seat 33 are also respectively equipped with line mouth 372 and the cable-through hole 332 excessively that supply the electric lead of connection control panel 38 to pass.
The front end side wall of described headstock front stall 34 is also connected with a hook 30, the link 301 of hook 30 and headstock front stall 34 is in pentagon, and pentagonal link 301 is symmetrical, and one of them angle towards immediately below; Be hollow structure in hook 30, be provided with two reinforcements 302 in hook 30, one of them reinforcement 302 is vertically arranged, and another is arranged in the horizontal direction; The reinforcement 302 of vertical setting is connected with two screw joint pins 303, and the outer end of screw joint pin 303 exceeds the end face of described pentagonal link; Linking up with 30 front upper is the hook body segment 304 upwards extended, hook body segment 304 and be also connected with a rinforcement bar 305 between the screw joint pin 303 of top.Described hook 30 can be conveniently connected on headstock front stall 34 by screw, and this hook 30 structure is very firm, can hang knapsack, handbag etc. for user.
As shown in Figure 9, described seat unit includes the seat arm 43 being arranged on seat attachment tubes 16 upper end and the seat 47 be arranged on above seat arm 43, described seat arm 43 sidewall offers multiple locating hole along its length, seat attachment tubes 16 upper portion side wall has been threaded connection a screw knob 41, and the front end of screw knob 41 coordinates locking with the locating hole on seat arm 43 sidewall.The effective length of such seat arm 43 can regulate.
Described seat attachment tubes 16 upper end is inserted with the clamping cover 42 of a plastic material, and the inside and outside wall of clamping cover 42 is close to seat arm 43 outer wall, seat attachment tubes 16 inwall respectively.Clamping cover 42 can not rock after making seat arm 43 fixing.
The upper end of described seat arm 43 is fixedly connected with a horizontally disposed chair mounted seat 44, chair mounted seat 44 slides and is provided with a seat slide 46, seat slide 46 upper end is fixedly connected with a seat fixed bar 462, and described seat 47 is fixedly connected on seat fixed bar 462 upper end; Seat slide 46 offers along its length a bar hole 461, chair mounted seat 44 offers two connecting holes 441; Be equipped with a hold-down screw 452 between bar hole 461 and connecting hole 441, hold-down screw 452 end is connected with a nut knob 45; Described nut knob 45 is positioned at below chair mounted seat 44, hold-down screw 453 is also arranged with a clamp sleeve 452, and clamp sleeve 452 two ends offset with chair mounted seat 44 lower end, nut knob 45 respectively.After unclamping nut knob 45, seat slide 46 can chair mounted seat 44 slide anteroposterior relatively, and the front and back position of seat can regulate.
Described chair mounted seat 44 and seat slide 46 width end face are all in downward opening U-shaped; Seat arm 43 upper end is also connected with the slide involucrum 49 of a plastic material, and slide involucrum 48 is made up of the halfbody of two symmetrical fastenings, and described chair mounted seat 44 and seat slide 46 are contained in slide involucrum 48.Slide involucrum 48 makes seat 47 rectangular structure brief, also avoids surprisingly being crushed by the gap between seat slide 46 and chair mounted seat 44 during adjustment seat 47.
As shown in Figure 10 to Figure 12, described damping unit includes the wheel shaft 56 be rotatably connected on by bearing on axle bed pipe 15, is fixedly connected on the driving pulley 55 on wheel shaft 56, is connected to the treadle 52 at wheel shaft 56 two ends and is connected to the pedal 51 of treadle 52 end; Also include the flywheel 54 be arranged on the flywheel mount pad 17 of vehicle frame, flywheel 54 side is coaxially fixedly connected with a driven pulley 542, and driven pulley 542 and driving pulley 55 are in transmission connection by a driving-belt 57; Described flywheel 54 is arranged on a free wheel base 541, and free wheel base 541 bottom front and back ends is fixedly connected on flywheel mount pad 17 by screw; Described free wheel base 541 is installed with electromagnet, and flywheel 54 periphery is provided with the permanent magnet coordinated with described electromagnet.
Described free wheel base 541 sidewall is hinged with a pressing plate 581, pressing plate 581 one end is fixedly connected with one and compresses wheel shaft 583, compress on wheel shaft 583 and be connected with by bearing the contact roller 58 that holds out against described driving-belt 57, compress wheel shaft 583 end and be connected with a hold-down nut 584, between pressing plate 581 other end and free wheel base 541, be connected with an extension spring 582.Described contact roller 58 makes driving-belt 57 and driving pulley 55, driven pulley 542 closely cooperate non-slip.
Described power connection seat 18 is provided with a switchboard 61, switchboard 61 is provided with electric power connection line and power switch; Described axle bed reinforcing pipe 151 is provided with a rectifier 62, position above described bottom bar 10 between headstock tube connector 14 and seat attachment tubes 16 is provided with controller 63, described switchboard 61 electrically connects with rectifier 62 input, rectifier 62 output and controller 63 electrically connect, and controller 63 electrically connects respectively with the electromagnet of control panel 38, heart rate sensor 32 and flywheel 54.
Described bottom bar 10 and seat attachment tubes 16 are fixedly connected with a plastic casing 53, plastic casing 53 is made up of the halfbody of two symmetrical fastenings, and described bottom bar 10, seat attachment tubes 16, axle bed pipe 15, rectifier 62, controller 63, driving pulley 55 and flywheel 54 are all positioned at described plastic casing 53.When avoiding user to use exercise bicycle like this, shank or trousers and the parts such as driving pulley 55, driven pulley 543 are touched and cause danger.
During use, the position of first adjusting vehicle frame makes vehicle frame place stablely not rock, and then unclamp screw knob 41, the height of adjustment seat arm 43, to correct position, makes seat 47 highly suitable, lock-screw knob 41; Unclamp nut knob 45 again, adjustment seat 47 to front and back position is suitable, locking nut knob 45; Then user can sit on seat 47, unclamps bolt knob 36, adjusts handrail 31 to suitable angle, clamping screw knob 36; Pull control panel 38 and can adjust its angle at any time.The power output of electromagnet then can be set by the adjustment button on control panel, thus the resistance of damping unit is set, exercise bicycle can be used like this to carry out sport and body-building.