CN208731121U - Hip model bike saddle packet and multifunction body-building bicycle - Google Patents

Abstract

The utility model discloses a kind of hip model bike saddle packet and multifunction body-building bicycles, including surface plate, support frame below surface plate is set and is arranged above surface plate and seat board, the surface plate by front the first fixed plate, it is symmetricly set on the first left side plate of the first fixed plate two sides, the plate of the first back board group at the first right side plate and rear portion synthesis, the seat board is by the second fixed plate, second left side plate, second right side plate, the upper surface of second back board group synthesis is the hemispherical concave surface to match with human body hip, there is protrusion in the centre of concave surface, the protrusion is the second fixed plate.The concave Iy curved that the utility model seat packet surface matches with hip, the right and left is wider than triangle seat cushion, increase the contact area of buttocks and seat cushion, and seat cushion the right and left and back are all upturned, surround entire buttocks, it has been reduced by the endurance of ischial tuberosity, the equal edge of entire buttocks is made to bear weight, contact has been can avoid, encounters or squeeze perineum.

Description

Hip model bike saddle packet and multifunction body-building bicycle

Technical field

The utility model relates to field of vehicles, in particular to arriving hip model bike saddle packet and more function It can Exercycle.

Background technique

Bicycle saddle cushion currently on the market is all triangle setting, and the intermediate height of seat cushion, both sides are low, are in convex.Work as people When sitting on cushion, the weight of whole body is all the interior half of receiving gravity by doing ischial tuberosity, the outer unbearable body weight of one side of something The effect of amount.Take 20 minutes or so time it is very short just feel ischial tuberosity pain, cause entire buttocks uncomfortable, if three Angular setting, front end just unavoidably contact, encounter or squeeze perineum, will feel uncomfortable after sitting long.

In addition, utility application ZL201510613322.8, a kind of multifunctional body-building is disclosed voluntarily, institute It states and is connected with the second drive sprocket above front fork, connected between second drive sprocket and preceding flywheel by chain；The Two drive sprockets are equipped with the crank that it can be made to rotate；The bicycle further includes an arrestment mechanism, and the arrestment mechanism includes Forward and backward brake shoes, the forward and backward brake shoes are connected with front brake line, rear brake fare one end respectively, and the front brake line is with after The other end of brake cable extends to the end for the strut that one is fixedly connected with the vehicle frame, and the arrestment mechanism further includes a braking Bar, the brake bar on strut end front brake line and rear brake fare be connected, and it is rotatably fixed on branch The end of bar.The bicycle of the utility model can trick with using, systemic blood can be promoted to flow and circulation, additionally it is possible to take exercise big The sensitivity and harmony of brain and trick.The bicycle structure is simple, applied widely, speed faster.It is equipped with and uses foot simultaneously The arrestment mechanism of control comes while controlling the braking of front and back wheel.But the bicycle of the patent lacks shock absorber and governor and control The handle of governor processed, and the direction hand handle in control headstock direction.

Utility model content

In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of hip model bike saddle packet, pass through It will be arranged to the concave Iy curved to match with human body hip on bicycle saddle cushion surface, the right and left is wider than triangle seat cushion, increases Add the contact area of buttocks and seat cushion, and seat cushion the right and left and back are all upturned, surrounds entire buttocks, buttocks Edge supports a part of weight of human body, be reduced by the endurance of ischial tuberosity, the equal edge of entire buttocks made to bear weight, The convex surface of cushion contact perineum is reduced, so that it may avoid contact with, encounter or squeeze perineum, cyclist takes can be more easypro It is suitable, by adjusting the screw rod in three strip through-holes of bracket, Telescopic is also had, venthole is provided on seat board, cold day is set It is equipped with soft seat set, it is more comfortable.The utility model also provides the multifunction body-building bicycle of the bike saddle packet of model containing hip, passes through Increase shock absorber, governor and the handle for controlling governor, so that Exercycle function is richer.

To achieve the above object, the utility model is achieved through the following technical solutions: a kind of hip model bicycle Including surface plate, the support frame being arranged in below surface plate and the surface plate above surface plate and seat board is arranged in seat packet By the first fixed plate of front, the first left side plate for being symmetricly set on the first fixed plate two sides, the first right side plate and rear portion The plate of first back board group synthesis, the seat board is by side plate after the second fixed plate, the second left side plate, the second right side plate, second The upper surface being combined into is the hemispherical concave surface to match with human body hip, and there is protrusion in the centre of concave surface, and the protrusion is second Fixed plate is provided with 2 or more screw holes in first fixed plate, is provided with the first screw rod, the plane in the screw hole Plate connects the second fixed plate by the first screw rod, after the first left side plate of the surface plate, the first right side plate, first on side plate point It is not provided with strip through-hole, the length direction of the strip through-hole is extended around by the center of surface plate, the strip through-hole The second screw rod of interior setting, side plate can be in bar shaped by the elastic connection of the second screw rod after the second left side plate, the second right side plate, second The length direction of through-hole is mobile, and when people is seated on seat board, the second fixed plate on seat board is not contacted with the perineum of human body, institute It states and is connected with 3 or more springs between support frame and surface plate.

It further illustrates, multiple ventholes through seat board upper and lower surface is set on the seat board.

It further illustrates, is cased with elastic soft saddle packet on the seat board.

It further illustrates, the soft seat jacket is hip model curved surface soft seat jacket, and centre is the hip being made into flexible glue Model curved surface seat cushion.

It further illustrates, the gap and the second left side plate between second right side plate and the second fixed plate are solid with second The gap of fixed board is located at below hip ischial tuberosity.

A kind of multifunction body-building bicycle, including vehicle frame and hip model bike saddle packet, the vehicle frame both ends are set respectively There are front wheels and rear wheels, the front wheels and rear wheels are separately mounted on front axle and rear axle, and the rear outer shaft sleeve, which is equipped with, drives rear axle to turn Dynamic rear flywheel, front section of vehicle frame top are equipped with the front fork being fixedly connected with front axle, and front fork both sides are equipped with shock absorber, central frame beam Equipped with main shaft, spindle jacket is equipped with the first drive sprocket, and first drive sprocket is connect by chain with rear flywheel, before described Wheel is outer to be arranged with the preceding flywheel for driving front axis, the second drive sprocket is connected with above the front fork, described second is main It is connected between movable sprocket and preceding flywheel by chain；Bicycle further includes an arrestment mechanism, and the arrestment mechanism includes forward and backward brake Vehicle block, the forward and backward brake shoes are connected with preceding speed regulation line, rear speed regulation line one end respectively, and line and rear speed regulation line are adjusted the speed before described The other end extend to the end of the strut that one is fixedly connected with the vehicle frame, the arrestment mechanism further includes a brake bar, institute State brake bar on strut end preceding speed regulation line and rear speed regulation line be connected, and its end for being rotatably fixed on strut Protective cover is arranged with outside end, first drive sprocket and the second drive sprocket, the second drive sprocket, which is equipped with, can make it The crank of rotation, crank lower section two sides are symmetrically arranged with direction hand handle, shock-absorbing bullet are equipped on the vehicle frame between main shaft and rear axle Spring, the other end of the shock-proof spring and the vehicle frame above main shaft connect.

It further illustrates, further includes the first speed adjusting gear and the second speed adjusting gear, first speed adjusting gear includes successively Connected preceding speed adjusting lever, preceding speed regulation line, the preceding governor at front axle, second speed adjusting gear includes the rear tune being sequentially connected Fast handle adjusts the speed line, the rear governor at rear axle afterwards, it is described after speed adjusting lever and the setting of preceding speed adjusting lever central frame beam and after Speed adjusting lever is located above preceding speed adjusting lever.

It further illustrates, is provided with the seat packet mounting rod extended to the tailstock in the middle part of the vehicle frame, outside the seat packet mounting rod It is cased with movable sleeve, movable sleeve is equipped with the first screw, can be present on packet mounting rod and slide by the elastic movable sleeve of the first screw Or it is fixed, movable sleeve top is connect with the support frame of seat packet bottom.

It further illustrates, is connected with first connecting rod below the shaft of second drive sprocket, the hand handle is equipped with The second connecting rod upwardly extended, second connecting rod top connect the hollow pipe that oriented bicycle two sides extend, hollow pipe Outer cover be equipped with pipe sleeve, pipe sleeve wall extends outward to form the upper plate being in contact and lower plate, and the upper plate and lower plate, which are equipped with, passes through The second screw of plate and lower plate is put on, when second screw is unscrewed, the distance of upper plate and lower plate becomes larger, and hollow pipe can be in pipe sleeve Interior rotation, when the second screw tightening, the distance of upper plate and lower plate becomes smaller, and hollow pipe is fixed in pipe sleeve, and the hollow pipe is longer than The bottom at the both ends and first connecting rod of pipe sleeve and hollow pipe connects, and pipe sleeve is connect with the top of the second connecting rod.

It further illustrates, first drive sprocket is connected with the crank for rotating it, the crank end and foot Step on connection.

Compared with prior art, the utility model has the following beneficial effects:

1, by the way that the hemispherical concave Iy curved to match with human body hip will be arranged on bicycle saddle cushion surface, make entire The equal edge of buttocks bears gravity；

2, the tired degree of cyclist's ischial tuberosity is alleviated；

3, it contacted when avoiding cyclist by bus, encounter or squeeze perineum；

4, cushion is provided with many ventholes, and hot day uses nice and cool；

5, cold day uses soft cushion set, comfortable；

6, suitable specification can be arbitrarily adjusted according to the size of personal buttocks, has accomplished a kind of a plurality of purposes of style；

7, the bicycle of the utility model is available foot-operated, can be improved leg power；It can increase arm power with hand Amount and moving body top；Can also trick with use, can promote systemic blood flow and circulation, additionally it is possible to temper brain and trick Sensitivity and harmony；

8, the bicycle structure of the utility model is simple, applied widely, speed faster.It is equipped with foot control simultaneously Arrestment mechanism carrys out while controlling the braking of front and back wheel, carries out control for brake using leg power, strength is bigger, and its energy Enough liberation is used to provide the both hands of power for crank；

9, it can be used as ordinary bicycle use；

10, seat packet and crank can be moved forward and backward, so that the distance between its shortens or elongated, can make pushing or hand Short people is all suitable for.

Detailed description of the invention

Fig. 1 is for illustrating the utility model embodiment hip model bike saddle packet surface plate schematic diagram.

Fig. 2 is for illustrating the utility model embodiment hip model bike saddle back stall plate schematic diagram.

Fig. 3 is for illustrating the utility model embodiment hip model bike saddle packet soft seat packet schematic diagram.

Fig. 4 is for illustrating the utility model embodiment hip model multifunction body-building bicycle schematic diagram.

Fig. 5 is the schematic diagram of partial enlarged view A in Fig. 4.

Fig. 6 is the schematic side view of Fig. 5.

Parts title and serial number in figure: 1- surface plate 11- the first fixed plate 12- the first left side plate the first right side plate of 13- Second the right side plate 111- screw hole 112- strip through-hole 2- seat board 21- the second fixed plate the second left side plate of 22- 23- after 14- first Side plate 3- support frame 4- soft seat packet 5- vehicle frame 51- main shaft the first drive sprocket of 52- 53- crank 54- rides 55- after plate 24- second 57- packet mounting rod 58- movable sleeve 59- the first screw 6- rear-wheel 61- rear flywheel 62- rear axle 63- blocks of strut 56- brake bar The second drive sprocket of flywheel 73- front axle 8- 81- crank 82- chain 83- front fork 84- direction hand handle 85- first connects before 7- front-wheel 72- Before adjusting the speed line 92- before extension bar 86- the second connecting rod 87- hollow pipe 88- pipe sleeve 881- lower plate 882- upper plate the second screw of 883- 91- Line is adjusted the speed after speed adjusting lever 94- after speed adjusting lever 93-.

Specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but is not limited practical Novel protection scope and application range:

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of hip model bike saddle packet, including surface plate 1, setting are under surface plate 1 The support frame 3 of side and be arranged surface plate 1 above and seat board 2, surface plate 1 by front the first fixed plate 11, arranged symmetrically What side plate 14 was combined into after the first of the first left side plate 12 of 11 two sides of the first fixed plate, the first right side plate 13 and rear portion is flat Plate, the first left side plate 12, the first right side plate 13 and rear portion first after side plate 14 be unable to telescopic moving, seat board 2 is consolidated by second The upper surface that side plate 24 is combined into after fixed board 21, the second left side plate 22, the second right side plate 23, second is to match with human body hip Hemispherical concave surface, there is a protrusion in the centre of concave surface, and protrusion is the second fixed plate 21, is provided with 2 or more in the first fixed plate 11 Screw hole 111, the first screw rod is provided in screw hole 111, surface plate 1 connects the second fixed plate 21, surface plate 1 by the first screw rod The first left side plate 12, be respectively arranged with strip through-hole 112 on side plate 14 after the first right side plate 13, first, strip through-hole 112 Length direction is extended around by the center of surface plate, and the second screw rod, the second left side plate 22, second are arranged in strip through-hole 112 Side plate 24 can be mobile in the length direction of strip through-hole 112 by the elastic connection of the second screw rod after right side plate 23, second, passes through Adjust the screw rod in hole, can arbitrarily be adjusted according to the size of personal buttocks the second left side plate 22 of seat board 2, the second right side plate 23, Suitable specification is transferred in side plate 24 after second, has accomplished a kind of a plurality of purposes of style.Second right side plate 23 and the second fixed plate 21 Between gap and the second left side plate 22 and the second fixed plate 21 gap, be located at hip ischial tuberosity below, surface plate 1 Side plate 14 is immovable and be used separately after first fixed plate 11, the first left side plate 12, the first right side plate 13 and first.When people sits When on seat board 2, the second fixed plate 21 on seat board 2 is not contacted with the perineum of human body, is connected between support frame 3 and surface plate 1 It is connected to 3 or more springs.Multiple ventholes through 2 upper and lower surface of seat board are set on seat board 2, and hot day is more nice and cool by bus.Seat Elastic soft saddle packet 4 is cased on plate 2.Hip model curved surface soft seat jacket, centre are the hip model curved surface seat cushions being made into flexible glue, It can shelter from the gap adjusted of side plate 24 after the second left side plate 22, the second right side plate 23 and second, and can play soft seat 4 comfortable effects are wrapped, around there is a circle cloth and have a rope to play contraction.When making hip model, in seat board 2 On, hip are taken when calcium plaster or cement, sand slurry are not hardened also using calcium plaster or cement, sand slurry production, It just will form a hip mould, using this mold, very identical hip model seat made with plastics or other products Plate.

By will be arranged to the concave Iy curved to match with human body hip on bicycle saddle cushion surface, the right and left compares triangle Shape seat cushion is wide, compared with the technology of existing triangle seat cushion, increases the contact area of buttocks and seat cushion, makes the hip of cyclist Equal edge bears gravity, alleviates the tired degree of cyclist's ischial tuberosity, and the convex surface of then perineum is reduced, avoids to ride Vehicle people by bus when then, encounter or squeeze perineum.And seat cushion the right and left is all upturned, and surrounds entire buttocks, stern The edge supports in portion a part of weight of human body, has been reduced by the endurance of ischial tuberosity, and the equal edge of entire buttocks is made to bear weight Amount reduces the convex surface of cushion contact perineum, so that it may avoid contact with, encounter or squeeze perineum, cyclist takes can be more Comfortably.

As shown in figure 4, a kind of multifunction body-building bicycle, including vehicle frame 5 and hip model bike saddle packet, 5 liang of vehicle frame End is respectively equipped with front-wheel 7 and rear-wheel 6, and front-wheel 7 and rear-wheel 6 are separately mounted on front axle 73 and rear axle 62, is arranged with outside rear axle 62 The rear flywheel 61 for driving rear axle 62 to rotate, 5 leading portion of vehicle frame top are equipped with the front fork 83 being fixedly connected with front axle 73,83 both sides of front fork Place is equipped with shock absorber, and main shaft 51 is equipped among vehicle frame 5, the first drive sprocket 52, the first drive sprocket are arranged with outside main shaft 51 52 are connect by chain with rear flywheel 61, and the preceding flywheel 72 for driving front axle 73 to rotate is arranged with outside front-wheel 7, is connected above front fork 83 It is provided with the second drive sprocket 8, is connected between the second drive sprocket 8 and preceding flywheel 72 by chain 82；On second drive sprocket 8 Equipped with the crank 81 that it can be made to rotate, 81 lower section two sides of crank are symmetrically arranged with direction hand handle 84.Main shaft 51 and rear axle 62 it Between vehicle frame on shock-proof spring is installed, the other end of shock-proof spring is connect with the vehicle frame 5 of 51 top of main shaft.Bicycle further includes First speed adjusting gear and the second speed adjusting gear, the first speed adjusting gear include the preceding speed adjusting lever 92 being sequentially connected, preceding speed regulation line 91, Preceding governor at front axle 73, the second speed adjusting gear include the rear speed adjusting lever 93 being sequentially connected, rear speed regulation line 94, at rear axle 62 Rear governor, the rear speed adjusting lever 93 and setting of preceding speed adjusting lever 92 is among vehicle frame 5 and rear speed adjusting lever 93 is located at preceding speed regulation 92 top of handle.The bicycle further includes an arrestment mechanism, and the arrestment mechanism includes forward and backward brake shoes (figure does not regard), described Forward and backward brake shoes is connected with preceding speed regulation line 91, rear speed regulation 94 one end of line respectively, and line 91 and rear speed regulation line 94 are adjusted the speed before described The other end extends to the end for the strut 55 that one is fixedly connected with the vehicle frame 5, and the arrestment mechanism further includes a brake bar 56, With the preceding speed regulation line 91 on 55 end of strut and afterwards, speed regulation line 94 is connected the brake bar 56, and it is rotatable fixed In the end of strut 55.The arrestment mechanism can control forward and backward brake shoes simultaneously, can achieve the effect that stablize braking.The brake Structure can control forward and backward brake simultaneously, also can be controlled separately the speed of front and back wheel, can achieve the effect that stablize braking.

As shown in figure 4, being provided with the seat packet mounting rod 57 extended to the tailstock in the middle part of vehicle frame 5, it is cased with outside seat packet mounting rod 57 Movable sleeve 58, movable sleeve 58 are equipped with the first screw 59, can be present packet mounting rod by the elastic movable sleeve 58 of the first screw 59 It is slided on 57 or fixed, 58 top of movable sleeve is connect with the support frame 3 of seat packet bottom, using the above structure, can be according to demand Seat hired car head or tailstock direction is mobile.

As shown in Figure 5 and Figure 6, it is connected with first connecting rod 85 below the shaft of the second drive sprocket 8, hand handle 84 is equipped with The second connecting rod 86 upwardly extended, 86 top of the second connecting rod connects the hollow pipe 87 that oriented bicycle two sides extend, hollow The outer cover of pipe 87 is equipped with pipe sleeve 88, and 88 wall of pipe sleeve extends outward to form the upper plate 882 being in contact and lower plate 881,882 He of upper plate Lower plate 881 is equipped with the second screw 883 through upper plate 882 and lower plate 881, and when the second screw 883 is unscrewed, upper plate 882 is under The distance of plate 881 becomes larger, and hollow pipe 87 can rotate in pipe sleeve 88, so that the second drive sprocket 8 is mobile to headstock or the tailstock, changes Become the distance shaken the hand with seat packet, the crowd for being suitble to pushing hand short.When second screw 883 is tightened, upper plate 882 and lower plate 881 away from From becoming smaller, hollow pipe 87 is fixed in pipe sleeve 88, and hollow pipe 87 is longer than both ends and the first connecting rod of pipe sleeve 88 and hollow pipe 87 85 bottom connection, pipe sleeve 88 are connect with the top of the second connecting rod 86.

Crank can be moved forward and backward, so that the distance between its shortens or elongated, can make pushing or short hand people all It is applicable in.

Protective cover 63 is arranged with outside first drive sprocket 52 and the second drive sprocket 8.Prevent chain and human body or other Foreign matter generates friction.First drive sprocket 52 is connected with the crank 53 for rotating it, and 53 end of crank is connect with foot-operated 54. First drive sprocket 52 is connected with the crank 53 for rotating it, and 53 end of crank is connect with foot-operated 54.

The bicycle of the utility model available foot-operated 54, can be improved leg power；It can increase arm power with hand Amount and moving body top；Can also trick with use, can promote systemic blood flow and circulation, additionally it is possible to temper brain and trick Sensitivity and harmony.The bicycle structure is simple, applied widely, speed faster.It is equipped with the system with foot control simultaneously Motivation structure carrys out while controlling the braking of front-wheel 7 and rear-wheel 6, carries out control for brake using leg power, and strength is bigger, and It can be liberated for providing the both hands of power for crank 81.

It is to be expounded to the utility model hip model bike saddle packet and multifunction body-building bicycle above, is used for Help understands the utility model, but the embodiments of the present invention and is not restricted to the described embodiments, any without departing from this Made changes, modifications, substitutions, combinations, simplifications under utility model principle, should be equivalent substitute mode, be included in this Within the protection scope of utility model.

Claims (10)

1. a kind of hip model bike saddle packet, it is characterised in that: including surface plate (1), the branch being arranged below surface plate (1) Support (3) and setting above the surface plate (1) and seat board (2), the surface plate (1) by front the first fixed plate (11), It is symmetricly set on first left side plate (12), the first right side plate (13) and first back at rear portion of the first fixed plate (11) two sides The plate that plate (14) is combined into, the seat board (2) by the second fixed plate (21), the second left side plate (22), the second right side plate (23), The upper surface that side plate (24) is combined into after second is the hemispherical concave surface to match with human body hip, and there is protrusion in the centre of concave surface, The protrusion is the second fixed plate (21), and 2 or more screw holes (111), the spiral shell are provided on first fixed plate (11) The first screw rod is provided in hole (111), the surface plate (1) passes through the first screw rod connection the second fixed plate (21), the plane Strip through-hole (112) are respectively arranged on side plate (14) after the first left side plate (12) of plate (1), the first right side plate (13), first, The length direction of the strip through-hole (112) is extended around by the center of surface plate, setting the in the strip through-hole (112) Two screw rods, side plate (24) can be by the elastic connection of the second screw rod after the second left side plate (22), the second right side plate (23), second The length direction of strip through-hole (112) is mobile, the second fixed plate (21) and people when people is seated on seat board (2), on seat board (2) The perineum of body does not contact, and 3 or more springs are connected between support frame as described above (3) and surface plate (1).

2. hip model bike saddle packet according to claim 1, it is characterised in that: be arranged on the seat board (2) multiple Through the venthole of seat board (2) upper and lower surface.

3. hip model bike saddle packet according to claim 1, it is characterised in that: covered on the seat board (2) flexible Soft seat packet (4).

4. hip model bike saddle packet according to claim 3, it is characterised in that: the soft seat packet (4) is hip mould Type curved surface soft seat jacket is the hip model curved surface seat cushion being made into flexible glue among seat jacket.

5. hip model bike saddle packet according to claim 1, it is characterised in that: second right side plate (23) and the Gap between two fixed plates (21), the gap of the second left side plate (22) and the second fixed plate (21) are respectively positioned on hip ischium knot Section lower section.

6. a kind of multifunction body-building bicycle, it is characterised in that: including vehicle frame (5) and hip model bike saddle packet, the vehicle Frame (5) both ends are respectively equipped with front-wheel (7) and rear-wheel (6), the front-wheel (7) and rear-wheel (6) be separately mounted to front axle (73) and after On axis (62), it is arranged with the rear flywheel (61) for driving rear axle (62) rotation outside the rear axle (62), is equipped with above vehicle frame (5) leading portion The front fork (83) being fixedly connected with front axle (73), front fork (83) both sides are equipped with shock absorber, are equipped with main shaft among vehicle frame (5) (51), it is arranged with the first drive sprocket (52) outside main shaft (51), first drive sprocket (52) passes through chain and rear flywheel (61) it connects, the preceding flywheel (72) for driving front axle (73) rotation, connection above the front fork (83) is arranged with outside the front-wheel (7) It is provided with the second drive sprocket (8), is connect between second drive sprocket (8) and preceding flywheel (72) by chain (82)；From Driving further includes an arrestment mechanism, and the arrestment mechanism includes forward and backward brake shoes, the forward and backward brake shoes respectively with preceding speed regulation Line (91), speed regulation line (94) one end is connected afterwards, and the other end that line (91) and rear speed regulation line (94) are adjusted the speed before described extends to one The end for the strut (55) being fixedly connected with the vehicle frame (5), the arrestment mechanism further include a brake bar (56), the braking Bar (56) adjusts the speed line (94) with the preceding speed regulation line (91) on strut (55) end and afterwards and is connected, and it is rotatable fixed In the end of strut (55), first drive sprocket (52) and the second drive sprocket (8) are arranged with protective cover outside, and second is main Movable sprocket (8) is equipped with the crank (81) that it can be made to rotate, and two sides are symmetrically arranged with direction hand handle (84) below crank (81), Shock-proof spring, the other end and main shaft of the shock-proof spring are installed on the vehicle frame (5) between main shaft (51) and rear axle (62) (51) vehicle frame (5) connection above.

7. multifunction body-building bicycle according to claim 6, it is characterised in that: further include the first speed adjusting gear and second Speed adjusting gear, first speed adjusting gear include the preceding speed adjusting lever (92) being sequentially connected, preceding speed regulation line (91), at front axle (73) Preceding governor, second speed adjusting gear include the rear speed adjusting lever (93) being sequentially connected, afterwards adjust the speed line (94), rear axle (62) The rear governor at place, the rear speed adjusting lever (93) and preceding speed adjusting lever (92) the setting intermediate and rear speed adjusting lever in vehicle frame (5) (93) it is located above preceding speed adjusting lever (92).

8. multifunction body-building bicycle according to claim 6, it is characterised in that: be provided in the middle part of the vehicle frame (5) to The seat packet mounting rod (57) that the tailstock extends, the seat packet mounting rod (57) are cased with movable sleeve (58) outside, and movable sleeve (58) is equipped with First screw (59) can be present on packet mounting rod (57) by the elastic movable sleeve (58) of the first screw (59) and slide or fix, Movable sleeve (58) top is connect with the support frame (3) of seat packet bottom.

9. multifunction body-building bicycle according to claim 6, it is characterised in that: second drive sprocket (8) turns It is connected with first connecting rod (85) below axis, the direction hand handle (84) is equipped with the second connecting rod (86) upwardly extended, institute It states the second connecting rod (86) top and connects the hollow pipe (87) that oriented bicycle two sides extend, the outer cover of hollow pipe (87) is equipped with Pipe sleeve (88), pipe sleeve (88) wall extend outward to form the upper plate (882) being in contact and lower plate (881), the upper plate (882) and under Plate (881) is equipped with the second screw (883) through upper plate (882) and lower plate (881), when second screw (883) is unscrewed, The distance of upper plate (882) and lower plate (881) becomes larger, and hollow pipe (87) rotation, the second screw (883) can be tightened in pipe sleeve (88) When, the distance of upper plate (882) and lower plate (881) becomes smaller, and hollow pipe (87) is fixed in pipe sleeve (88), and the hollow pipe (87) is long It is connect in the both ends of pipe sleeve (88) and hollow pipe (87) with the bottom of first connecting rod (85), pipe sleeve (88) and the second connecting rod (86) top connection.

10. multifunction body-building bicycle according to claim 6, it is characterised in that: first drive sprocket (52) is even The crank (53) for being provided with and rotating it is connect, crank (53) end is connect with foot-operated (54).