CN2652816Y

CN2652816Y - Bicycle on water

Info

Publication number: CN2652816Y
Application number: CN 03210686
Authority: CN
Inventors: 绪鸿贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-17
Filing date: 2003-09-17
Publication date: 2004-11-03
Anticipated expiration: 2013-09-17

Abstract

The utility model relates to a wet bike which comprises a bike body having a front wheel and a back wheel, which is characterized in that it also includes two floating bodies, a connecting and supporting mechanism, a propeller drive mechanism and a loofing mechanism, said two floating bodies are connected for integration by the connecting and supporting mechanism; said bike body, propeller drive mechanism and loofing mechanism are all arranged on the connecting and supporting mechanism between the two floating bodies, the lower part of the tyre of the back wheel of the bike is rubbingly and transmittingly connected to the propeller drive mechanism, and the flat surfaces of the steel rings at two sides of the front wheel of the bike is contactingly and transmittingly connected to the loofing mechanism. The wet bike of the utility model combines bike and boat together and leverages the modes and characteristics of driving the propeller by the bike driving mode that people are used to adopt and changing the sailing direction by the loofing of the steering mode of the bike, which is easy to learn and use, therefore, the utility model is rather practical.

Description

Water cycle

Technical field

The utility model relates to a kind of amusement and recreation vehicle waterborne, relates in particular to a kind of water cycle.

Background technology

Along with the raising of people's culture living standard, amusement and recreation activity waterborne more and more is subjected to people's favor.Prior art self-service apparatus of striking waterborne roughly has following two kinds: a kind of is the apparatus of striking of traditional manual paddle, another kind is the foot-operated apparatus of striking of striking, but above two kinds of apparatuses of striking all exist speed slow, can not a people problem such as control rate and direction simultaneously.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiency of existing water recreation instrument, satisfies the needs of the growing amusement and recreation activity waterborne of people and a kind of water cycle is provided.

The purpose of this utility model is achieved in that

A kind of water cycle comprises the bicycle body that contains front and back wheel, is characterized in also comprising: two buoyancy aids, connection supporting mechanism, screw propeller driver train and loof mechanism, and described two buoyancy aids connect in aggregates by connecting supporting mechanism; Described bicycle body, screw propeller driver train and loof mechanism all are installed on the connection supporting mechanism between two buoyancy aids, bicycle rear tire bottom links to each other with screw propeller driver train friction transmission, and the steel ring plane of bicycle front-wheel both sides links to each other with the loof mechanism Contact Transmission.

In above-mentioned water cycle, wherein, described two buoyancy aids are the wedge angle stream line pattern, are full of polyamine fat foamed plastic at the buoyancy aid inner chamber.

In above-mentioned water cycle, wherein, described connection supporting mechanism comprises front axle, axis, rear axle, front support stand, bracket of rear mounting, supporting and connecting rod; Described front axle, axis and rear axle are provided with perpendicular to the axis of buoyancy aid, and its two ends are separately fixed on the axis of two buoyancy aids, and front axle is arranged on the bicycle handle below, and axis is arranged on the bicycle saddle cushion below, and rear axle is arranged on the bicycle rear lower rear; Described front support stand comprises two strut bars, and it wears the two ends that are fixed on front axle and axis respectively, and seat is pressed on the buoyancy aid of both sides; Described bracket of rear mounting comprises supported on both sides channel-section steel and end support channel-section steel, the supported on both sides channel-section steel is parallel to the buoyancy aid axis and wears and be fixed on axis and the rear axle, be symmetricly set on the bicycle rear both sides between two buoyancy aids, the end support channel-section steel is connected the tail end of supported on both sides channel-section steel; Totally two of described supportings are symmetricly set on the left and right sides of bicycle rear, and its upper end is separately fixed at the treat others with sincerity both sides of axle of bicycle rear, and its lower end is separately fixed on the supported on both sides channel-section steel of bracket of rear mounting; Connecting rod connects bicycle tripod and front axle.

In above-mentioned water cycle, wherein, described screw propeller transmission device comprises rubber wheel, drive sprocket, active chain, driving chain wheel, transmission shaft, driving bevel gear, transmission bevel gear, center shaft, center sprocket wheel, center chain, screw propeller assembly and transmission gearbox assembly; Described rubber wheel and drive sprocket are coaxial to be movably arranged on the rear axle, and wherein rubber wheel links to each other with bicycle rear friction transmission, and drive sprocket is fixedly connected on the right-hand member side of rubber wheel; Described active chain connects drive sprocket and driving chain wheel; Described driving chain wheel and driving bevel gear are coaxial to be fixedly mounted on the transmission shaft; Described transmission bevel gear and center sprocket coaxiality are fixedly mounted on the center shaft, and wherein the transmission bevel gear links to each other with the driving bevel gear engaged transmission; Described center sprocket wheel links to each other with the transmission of screw propeller assembly by the center chain; Described transmission gearbox assembly is installed on the supported on both sides channel-section steel of bracket of rear mounting; Described transmission shaft and center shaft are positioned in the transmission gearbox assembly; Described screw propeller assembly is connected the below of transmission gearbox assembly.

In above-mentioned water cycle, wherein, the rubber wheel outer rim of described screw propeller transmission device is provided with the arc-shaped slot adaptive with bike tyre, described bicycle rear tire bottom nested is in this arc-shaped slot, and the rotation of bicycle rear drives rubber wheel by the friction transmission and makes backward rotation.

In above-mentioned water cycle, wherein, described transmission gearbox assembly comprises transmission gearbox, two transmission shafts bearings, center shaft bearing seat and brace panel; Described transmission gearbox is a hexahedron structure, comprises left and right sides plate, front and back biside plate and upper and lower covers, and its left and right sides plate is fixed on the supported on both sides channel-section steel of bracket of rear mounting; Described two transmission shafts bearings are nested on the left and right sides plate of transmission gearbox, and the outside of two transmission shafts bearings is separately fixed on the supported on both sides channel-section steel of bracket of rear mounting, and its inboard is fixedly linked with the left and right sides plate of transmission gearbox respectively; Described transmission shaft installing and locating is in two transmission shafts bearings, and the end that driving chain wheel is installed on the transmission shaft exposes outside the right-hand axis bearing; Described center shaft bearing seat is inlaid on the front side plate of transmission gearbox, and is fixedly linked with front side plate; Described center shaft installing and locating is in this bearing seat; Described brace panel is arranged on the place ahead of transmission gearbox, and the front side plate of one side and center shaft bearing seat and transmission gearbox is fixedly linked, and the supported on both sides channel-section steel of its two ends and bracket of rear mounting is fixedly linked.

In above-mentioned water cycle, wherein, described loof mechanism comprises rocking arm, rocker shaft, rocker shaft adapter sleeve, rocking arm sprocket wheel, the chain of coming about, rudderpost sprocket wheel, rudderpost, double leaf rudder and rudderpost locations; Described rocking arm, rocker shaft, rocker shaft adapter sleeve and rocking arm sprocket wheel totally two groups be linked to be a whole symmetry respectively and be installed on the front axle of bicycle front-wheel both sides, wherein; an end of rocking arm is fitted with the steel ring plane of bicycle front-wheel and linked to each other, and the other end is fixedly set in an end of rocker shaft; The middle part of rocker shaft is set on the rocker shaft adapter sleeve, and the rocker shaft adapter sleeve is fixedly mounted on the front axle, and the rocking arm sprocket wheel is installed in the other end of rocker shaft; The described chain of coming about is around being connected on two rocking arm sprocket wheels and the rudderpost sprocket wheel; Described rudderpost sprocket wheel is fixed on the rudderpost; Described double leaf rudder is fixedly mounted on the bottom of rudderpost; Totally two of described rudderpost locationss divide upper and lower settings, and the one end is set on respectively on the rudderpost, and its other end is fixedly connected on the two ends up and down of the back support channel-section steel of bracing frame respectively.

In above-mentioned water cycle, wherein, described connection supporting mechanism also comprises a U-shaped tie bolt, and the U-shaped bottom casing pressure of this tie bolt is fixed on the baggage rack of bicycle, and its both sides bolt end is connected on the supported on both sides channel-section steel of bracket of rear mounting.

The utility model water cycle just can enjoy a trip to the numerous crowds that are familiar with by bike because bicycle and hull are combined at an easy rate on the water.Because adopt bicycle rear to drive screw propeller, people only need adopt the habitual movement of stepping bicycle, just can drive water cycle and advance in water; Owing to adopt bicycle f-w-d loof mechanism, people only need adopt the habitual movement signaling handle of turning of bicycle, just can change the navigation direction of water cycle, can accomplish by people while control rate and direction, easily learn usefulness well, value for applications is arranged very much.

Description of drawings

Fig. 1 is the structural representation of the utility model water cycle;

Fig. 2 is the birds-eye view of water cycle shown in Figure 1;

Fig. 3 is the lateral plan of water cycle shown in Figure 1;

Fig. 4 is the local structure scheme drawing of the rubber wheel part of screw propeller driver train in the utility model;

Fig. 5 is the local structure scheme drawing of the transmission gearbox part of screw propeller driver train;

Fig. 6 is the local structure scheme drawing of the screw propeller part of screw propeller driver train;

Fig. 7 is the structural representation (wherein the rocking arm part only shows its symmetrical side) of loof mechanism in the utility model;

Fig. 8 is the plan structure scheme drawing of loof mechanism shown in Figure 7.

The specific embodiment

Referring to Fig. 1, cooperate referring to Fig. 2, Fig. 3, water cycle of the present utility model comprises bicycle body 1, two buoyancy aids 2, connects supporting mechanism 3, screw propeller driver train 4 and loof mechanism 5.Bicycle 1 is a general-duty land bicycle.Two buoyancy aids 2 are the wedge angle stream line pattern, and its base portion is made by glass-felt plastic, and its head is made by corrosion-resistant steel, are full of polyamine fat foamed plastic at the buoyancy aid inner chamber.Bicycle 1, two buoyancy aids 2 connect into an integral body by connecting supporting mechanism 3, and screw propeller driver train 4 is fastened on loof mechanism 5 and is connected on the supporting mechanism 3.Bicycle 1 rear tire bottom links to each other with the 4 friction transmissions of screw propeller driver train, and the steel ring plane of bicycle front-wheel both sides contacts with loof mechanism 5 and links to each other.

Referring to Fig. 1, Fig. 3, cooperate referring to Fig. 4, Fig. 7, the connection supporting mechanism 3 in the utility model comprises front axle 31, axis 32, rear axle 33, front support stand 34, bracket of rear mounting 35, supporting 36, connecting rod 37, tie bolt 38.Front axle, axis and rear axle all are provided with perpendicular to the axis of buoyancy aid 2, its two ends are separately fixed on the axis of two buoyancy aids 2, wherein front axle 31 is arranged on the bicycle handle below, and axis 32 is arranged on the bicycle saddle cushion below, and rear axle 33 is arranged on the bicycle rear lower rear.Front support stand 34 comprises two strut bars 341, wears the two ends that are fixed on front axle 31 and axis 32 respectively, and seat is pressed on the buoyancy aid 2 of both sides.Bracket of rear mounting 35 comprises supported on both sides channel-section steel 351,352 and end support channel-section steel 353, supported on both sides channel-section steel 351,352 is parallel to the buoyancy aid axis and wears and be fixed on axis 32 and the rear axle 33, be symmetricly set on the bicycle rear both sides between two buoyancy aids 2, end support channel-section steel 353 is connected the tail end of supported on both sides channel-section steel 351,352.Front axle 31, axis 32, rear axle 33, front support stand 34 and bracket of rear mounting 35 are interconnected to a stable framework, not only with two buoyancy aid positioning and fixing, and the support that a consolidation is provided for bicycle 1, screw propeller driver train 4 and loof mechanism 5 be connected the basis.Supporting 36 totally two, be symmetricly set on the left and right sides of bicycle rear, its the upper end be separately fixed at bicycle rear treat others with sincerity the axle both sides, its lower end is separately fixed on the supported on both sides channel-section steel 351,352 of bracket of rear mounting 35, its effect is to locate from the rear portion with the bicycle support fixation.Connecting rod 37 connects bicycle tripod and front axle 31, and its effect is to locate from the front portion with the bicycle support fixation.In connecting rod 37, be provided with the normal direction distance of governing screw scalable bicycle tripod center and front axle center.The U-shaped bottom casing pressure of tie bolt 38 is fixed on the baggage rack of bicycle 1, and its both sides bolt end is connected on the supported on both sides channel-section steel of bracket of rear mounting 35.Its effect is by fastening nut the bicycle rear tire to be pressed in the arc-shaped slot of rubber wheel 401, and it compresses degree, and when the stepping bicycle tread plate, bicycle rear can drive rubber wheel 401 and do nonslipping rolling and be advisable with the cyclist.

Referring to Fig. 4, cooperation is referring to Fig. 5, Fig. 6, and the screw propeller transmission device 4 in the utility model comprises rubber wheel 401, drive sprocket 402, active chain 403, driving chain wheel 404, transmission shaft 405, driving bevel gear 406, transmission bevel gear 407, center shaft 408, center sprocket wheel 409, center chain 410, screw propeller assembly 411 and transmission gearbox assembly 412.Rubber wheel 401 and drive sprocket 402 coaxial being movably arranged on the rear axle 33, wherein the outer rim of rubber wheel 401 is provided with the arc-shaped slot adaptive with bike tyre, and links to each other with bicycle 1 trailing wheel friction transmission by this groove.Drive sprocket 402 is fixedly connected on the right-hand member side of rubber wheel 401.Initiatively chain 403 connects drive sprocket 402 and driving chain wheel 404.Driving chain wheel 404 and driving bevel gear 406 coaxial being fixedly mounted on the transmission shaft 405.Transmission bevel gear 407 and center sprocket wheel 409 coaxial being fixedly mounted on the center shaft 408.Wherein transmission bevel gear 407 links to each other with driving bevel gear 406 engaged transmission, and center sprocket wheel 409 links to each other with 411 transmissions of screw propeller assembly by center chain 410.Screw propeller assembly 411 is connected the below of transmission gearbox assembly 412.Transmission gearbox assembly 412 is installed on the supported on both sides channel-section steel 351,352 of bracket of rear mounting 35, comprises transmission gearbox 4121, two transmission shafts bearings 4122, center shaft bearing seat 4123 and brace panel 4124.Transmission gearbox 4121 is a hexahedron structure, comprises left and right sides plate, front and back biside plate and upper and lower covers, and its left and right sides plate is fixed on the supported on both sides channel-section steel 351,352 of bracket of rear mounting 35.Two transmission shafts bearings 4122 are nested on the left and right sides plate of transmission gearbox, and the outside of two transmission shafts bearings is separately fixed on the supported on both sides channel-section steel 351,352 of bracket of rear mounting 35, and its inboard is fixedly linked with the left and right sides plate of transmission gearbox respectively.Transmission shaft 405 is positioned in the two transmission shafts bearings by corresponding bearing installation.The end that driving chain wheel 404 is installed on the transmission shaft exposes outside the right-hand axis bearing.Center shaft bearing seat 4123 is inlaid on the front side plate of transmission gearbox 4121.Center shaft 408 is positioned in this bearing seat by corresponding bearing installation.Brace panel 4124 is arranged on the place ahead of transmission gearbox, and the front side plate of one side and center shaft bearing seat 4123 and transmission gearbox 2121 is fixedly linked, and the supported on both sides channel-section steel 351,352 of its two ends and bracket of rear mounting 35 is fixedly linked.Its effect be further transmission gearbox is located firm.

Referring to Fig. 7, cooperate referring to Fig. 1, Fig. 8, the loof mechanism 5 in the utility model comprise Rocker arm 51, rocker shaft 52,, rocker shaft adapter sleeve 53, rocking arm sprocket wheel 54, the chain 55 of coming about, rudderpost sprocket wheel 56, rudderpost 57, double leaf rudder 58 and rudderpost locations 59.Rocking arm, rocker shaft, rocker shaft adapter sleeve and rocking arm sprocket wheel totally two groups be linked to be respectively on the front axle 31 that a whole symmetry is installed in bicycle 1 front-wheel both sides, wherein; an end of Rocker arm 51 is fitted with the steel ring plane of bicycle front-wheel and linked to each other, and the other end is fixedly set in an end of rocker shaft 52; The middle part activity of rocker shaft 52 is set on the rocker shaft adapter sleeve 53, and rocker shaft adapter sleeve 53 is fixedly mounted on the front axle 31, and rocking arm sprocket wheel 54 is installed in the other end of rocker shaft 52.Come about chain 55 around on the triangle that is connected two rocking arm sprocket wheels 54 and rudderpost sprocket wheel 56 compositions.Rudderpost sprocket wheel 57 is fixed on the rudderpost 58.Double leaf rudder 58 is fixedly mounted on the bottom of rudderpost 57.Totally two of rudderpost locationss 59 divide upper and lower settings, and the one end is set on respectively on the rudderpost, and its other end is fixedly connected on the two ends up and down of the back support channel-section steel 353 of bracing frame 35 respectively.

Water cycle of the present utility model adopts the mode by bike of land bicycle to use fully, cyclist's pedal bicycle, the rotation of bicycle rear drives the rubber wheel rotation that friction with it links to each other, and then drive the running of whole propeller driver train, produce thrust by the screw motion of screw propeller water cycle is advanced.When needs turned to, the cyclist can promote to rotate with the rocking arm of bicycle front wheel steel ring plane contact, and then drive whole loof mechanism rotation as long as rotate bicycle handle, realizes coming about, and changes working direction.

In sum, the utility model water cycle is owing to combine bicycle and hull, utilizing bicycle type of drive that people are accustomed to adopting to drive screw propeller and turning of bicycle mode comes about and changes the mode and the characteristics of navigation direction, energy one people is control rate and direction simultaneously, the numerous crowds that are familiar with by bike just can be enjoyed a trip at an easy rate on the water, easily learn usefulness well, value for applications is arranged very much.

Claims

1, a kind of water cycle, comprise the bicycle body (1) that contains front and back wheel, it is characterized in that also comprising: two buoyancy aids (2), connection supporting mechanism (3), screw propeller driver train (4) and loof mechanism (5), described two buoyancy aids (2) connect in aggregates by connecting supporting mechanism (3); Described bicycle body (1), screw propeller driver train (4) and loof mechanism (5) all are installed on the connection supporting mechanism (3) that is positioned between two buoyancy aids (2), bicycle rear tire bottom links to each other with screw propeller driver train (4) friction transmission, and the steel ring plane of bicycle front-wheel both sides links to each other with loof mechanism (5) Contact Transmission.

2, water cycle according to claim 1 is characterized in that: described two buoyancy aids (2) are the wedge angle stream line pattern, are full of polyamine fat foamed plastic at the buoyancy aid inner chamber.

3, water cycle according to claim 1 is characterized in that: described connection supporting mechanism (3) comprises front axle (31), axis (32), rear axle (33), front support stand (34), bracket of rear mounting (35), supporting (36) and connecting rod (37); Described front axle, axis and rear axle are provided with perpendicular to the axis of buoyancy aid (2), its two ends are separately fixed on the axis of two buoyancy aids (2), front axle (31) is arranged on the bicycle handle below, axis (32) is arranged on the bicycle saddle cushion below, and rear axle (33) is arranged on the bicycle rear lower rear; Described front support stand (34) comprises two strut bars, and it wears the two ends that are fixed on front axle (31) and axis (32) respectively, and seat is pressed on the buoyancy aid (2) of both sides; Described bracket of rear mounting (35) comprises supported on both sides channel-section steel (351,352) and end support channel-section steel (353), supported on both sides channel-section steel (351,352) is parallel to the buoyancy aid axis and wears and be fixed on axis (32) and the rear axle (33), be symmetricly set on the bicycle rear both sides between two buoyancy aids (2), end support channel-section steel (353) is connected the tail end of supported on both sides channel-section steel (351,352); Totally two of described supportings (36) are symmetricly set on the left and right sides of bicycle rear, and its upper end is separately fixed at the treat others with sincerity both sides of axle of bicycle rear, and its lower end is separately fixed on the supported on both sides channel-section steel (351,352) of bracket of rear mounting (35); Connecting rod (37) connects bicycle tripod and front axle (31).

4, according to claim 1 or 3 described water cycles, it is characterized in that: described screw propeller transmission device (4) comprises rubber wheel (401), drive sprocket (402), active chain (403), driving chain wheel (404), transmission shaft (405), driving bevel gear (406), transmission bevel gear (407), center shaft (408), center sprocket wheel (409), center chain (410), screw propeller assembly (411) and transmission gearbox assembly (412); Described rubber wheel (401) and drive chain (402) are coaxial to be movably arranged on the rear axle (33), and wherein rubber wheel (401) links to each other with bicycle (1) trailing wheel friction transmission, and drive sprocket (402) is fixedly connected on the right-hand member side of rubber wheel (401); Described active chain (403) connects drive sprocket (402) and driving chain wheel (404); Described driving chain wheel (404) and driving bevel gear (406) are coaxial to be fixedly mounted on the transmission shaft (405); Described transmission bevel gear (407) and center sprocket wheel (409) are coaxial to be fixedly mounted on the center shaft (408), and wherein transmission bevel gear (407) links to each other with driving bevel gear (406) engaged transmission; Described center sprocket wheel (409) links to each other with screw propeller assembly (411) transmission by center chain (410); Described transmission gearbox assembly (412) is installed on the supported on both sides channel-section steel of bracket of rear mounting (35); Described transmission shaft (405) and center shaft (408) are positioned in the transmission gearbox assembly (412); Described screw propeller assembly (411) is connected the below of transmission gearbox assembly (412).

5, according to claim 1 or 4 described water cycles, it is characterized in that: rubber wheel (401) outer rim of described screw propeller transmission device (4) is provided with the arc-shaped slot adaptive with bike tyre, described bicycle rear tire bottom nested is in this arc-shaped slot, and the rotation of bicycle rear drives rubber wheel (401) by the friction transmission and makes backward rotation.

6, water cycle according to claim 4 is characterized in that: described transmission gearbox assembly (412) comprises transmission gearbox (4121), two transmission shafts bearings (4122), center shaft bearing seat (4123) and brace panel (4124); Described transmission gearbox (4121) is a hexahedron structure, comprises left and right sides plate, front and back biside plate and upper and lower covers, and its left and right sides plate is fixed on the supported on both sides channel-section steel (351,352) of bracket of rear mounting (35); Described two transmission shafts bearings (4122) are nested on the left and right sides plate of transmission gearbox, the outside of two transmission shafts bearings is separately fixed on the supported on both sides channel-section steel (351,352) of bracket of rear mounting (35), and its inboard is fixedly linked with the left and right sides plate of transmission gearbox respectively; Described transmission shaft (405) installing and locating is in two transmission shafts bearings, and the end that driving chain wheel (404) is installed on the transmission shaft exposes outside the right-hand axis bearing; Described center shaft bearing seat (4123) is inlaid on the front side plate of transmission gearbox (4121), and is fixedly linked with front side plate; Described center shaft (408) installing and locating is in this bearing seat; Described brace panel (4124) is arranged on the place ahead of transmission gearbox, and the front side plate of one side and center shaft bearing seat (4123) and transmission gearbox (2121) is fixedly linked, and the supported on both sides channel-section steel of its two ends and bracket of rear mounting (35) (351,352) is fixedly linked.

7, water cycle according to claim 1 is characterized in that: described loof mechanism (5) comprises rocking arm (51), rocker shaft (52), rocker shaft adapter sleeve (53), rocking arm sprocket wheel (54), the chain of coming about (55), rudderpost sprocket wheel (56), rudderpost (57), double leaf rudder (58) and rudderpost locations (59); Described rocking arm, rocker shaft, rocker shaft adapter sleeve and rocking arm sprocket wheel totally two groups be linked to be respectively on the front axle (31) that a whole symmetry is installed in bicycle (1) front-wheel both sides, wherein; an end of rocking arm (51) is fitted with the steel ring plane of bicycle front-wheel and linked to each other, and the other end is fixedly set in an end of rocker shaft (52); The middle part of rocker shaft (52) is set on the rocker shaft adapter sleeve (53), and rocker shaft adapter sleeve (53) is fixedly mounted on the front axle (31), and rocking arm sprocket wheel (54) is installed in the other end of rocker shaft (52); The described chain of coming about (55) is around being connected on two rocking arm sprocket wheels (54) and the rudderpost sprocket wheel (56); Described rudderpost sprocket wheel (57) is fixed on the rudderpost (58); Described double leaf rudder (58) is fixedly mounted on the bottom of rudderpost (57); Totally two of described rudderpost locationss (59) divide upper and lower settings, and the one end is set on respectively on the rudderpost, and its other end is fixedly connected on the two ends up and down of the back support channel-section steel (353) of bracing frame (35) respectively.

8, water cycle according to claim 3, it is characterized in that: described connection supporting mechanism (3) also comprises a U-shaped tie bolt (38), the U-shaped bottom casing pressure of this tie bolt is fixed on the baggage rack of bicycle (1), and its both sides bolt end is connected on the supported on both sides channel-section steel of bracket of rear mounting (35).