CN207141275U - A kind of novel damping electric bicycle fame - Google Patents

Abstract

It the utility model is related to a kind of novel damping electric bicycle fame.Including crossbeam, front fork tube is mounted with the front end of crossbeam, rear end is provided with folder；Posteriorly a upper rack posts of top extension, lower rear are installed in folder rear upper two lower fulcrum bars that posteriorly lower section extends are installed, bottom guard plate is installed between the lower end of two lower fulcrum bars；Also include seat pipe as battery case, that upper end is open, sealing welding is fixed between the lower end of two lower fulcrum bars and between bottom guard plate for the lower end of seat pipe；Two relative bottom otic placodes are provided with the bottom of bottom guard plate, rear portion is provided with two relative rear portion otic placodes；Also include two rear stayses that relative, bottom carries dropout, back arm is provided with rear side of the middle part of each rear stays, the upper end of two rear stayses is articulated and connected with two bottom otic placodes respectively, also include damping spring, its upper end is articulated and connected with two rear portion otic placodes, lower end and the upper end of two back arms are articulated and connected.

Description

A kind of novel damping electric bicycle fame

Technical field

The utility model belongs to bicycle assembly parts technical field, more particularly to a kind of novel damping electric bicycle fame.

Background technology

Bicycle has become one of necessary tool of current people's go off daily, with the improvement of people ' s living standards with And healthy Green Travel theory is rooted in the hearts of the people, bicycle plays the role to become more and more important in the life of people.Will voluntarily Car motorized, miniaturization, the developing direction that the design of folding storage formula is current bicycle is carried out, the electric foldable of miniaturization is certainly Driving is easy to store and moved, and can be moved as automobile companion with garage, solves the demand that short distance is ridden.Existing electric bicycle Vehicle frame general structure is complicated, and damping effect difference and causing comfort level of riding is poor；On the other hand, electric bicycle usually requires to configure Battery, battery more space-consuming, and the installation to battery and the antitheft single structure design of offer are provided, this causes The complexity of cycle frame is further lifted, and have impact on the terseness of complete vehicle structure, and fault rate also improves.

Utility model content

The utility model provides a kind of simple in construction, folding operation just to solve technical problem present in known technology Installing space, the novel damping electric bicycle fame of good damping effect prompt, that battery is provided.

The utility model is adopted the technical scheme that to solve technical problem present in known technology：One kind is new to be subtracted Shake electric bicycle fame includes crossbeam, is mounted with front fork tube in the front end of crossbeam, rear end is mounted with folder； A upper rack posts of posteriorly top extension are mounted with above folder rear portion, installation is solid in the lower section at folder rear portion Two lower fulcrum bars of fixed oriented lower rear extension, bottom guard plate is mounted between the lower end of two lower fulcrum bars；Also wrap Seat pipe as battery case, that upper end is open is included, the lower end of seat pipe is located between the lower end of two lower fulcrum bars and and bottom guard plate Between sealing welding fix；After two relative bottom otic placodes, rear portion are provided with the bottom of bottom guard plate provided with relative two Portion's otic placode；Also include relative, bottom carry dropout two rear stayses, on rear side of the middle part of each rear stays be provided with to The back arm of rear upper extension, the upper end of two rear stayses is articulated and connected with two bottom otic placodes respectively, in addition to damping bullet Spring, the upper end of damping spring are articulated and connected with two rear portion otic placodes, and the lower end of damping spring and the upper end of two back arms are hinged Connection.

The advantages of the utility model and good effect are：The utility model provides a kind of the new of structure design advantages of simple Type shock-absorbing electric bicycle frame, compared with existing cycle frame, by between crossbeam and seat pipe in the technical program Folder is set, makes whole vehicle frame to carry out easily folding storage, volume reduces after folding storage, quite convenient for automobile Stored in boot.By setting seat pipe to be used as battery case, make battery to be mounted directly in seat pipe, both save vehicle frame Exterior space, need not for battery installation and it is antitheft single structure design be provided, simplify overall structure, realize again Battery is not easily taken out, strengthened the technique effect of theftproof performance after installation vehicle seat at the top of seat pipe.Set by the rear portion in rear stays Postpone support arm and damping spring is set between back arm and the bottom rear portion of seat pipe, realize the damping effect of trailing wheel, lifted Comfortableness when riding.Whole body frame structure for automotive is simple, and folding operation is convenient, there is provided the protection to battery, rides comfortable Degree is high.

Preferably：Both back arm and rear stays are integrated punch forming structure, and dropout passes through in the lower end of rear stays Stamp out notch to obtain.

Preferably：Mandrel is equipped with the outside of two bottom otic placodes, is equipped with axle sleeve in the upper end of two rear stayses, two Axle sleeve is respectively sleeved on two mandrels.

Preferably：The support box body of triangle is mounted with rear side of seat pipe middle and upper part.

Preferably：Also include rear installing plate with multiple connecting holes, for installing mud guard, the front end of rear installing plate Between two bottom otic placodes and it is welded and fixed.

Preferably：The front end of front fork tube and crossbeam is welded and fixed, and rear end and the folder of crossbeam are welded and fixed；Upper rack posts Front end is welded and fixed with folder, the front side wall of rear end and seat pipe is welded and fixed；The front end of lower fulcrum bar is welded and fixed with folder, Rear end is welded and fixed with bottom guard plate.

Preferably：Upper rack posts and lower fulcrum bar are arcuate shape.

Brief description of the drawings

Fig. 1 is main structure diagram of the present utility model.

In figure：1st, front fork tube；2nd, crossbeam；3rd, folder；4th, upper rack posts；5th, lower fulcrum bar；6th, seat pipe；7th, box body is supported；8、 Rear portion otic placode；9th, damping spring；10th, jointed shaft；11st, back arm；12nd, dropout；13rd, rear installing plate；14th, bottom guard plate；15、 Bottom otic placode；16th, mandrel；17th, rear stays.

Embodiment

For invention, features and effects of the present utility model can be further appreciated that, hereby lift following examples and describe in detail It is as follows：

Fig. 1 is referred to, novel damping electric bicycle fame of the present utility model includes crossbeam 2, pacifies in the front end of crossbeam 2 Dress is fixed with front fork tube 1, rear end is mounted with folder 3.The front end of front fork tube 1 and crossbeam 2 is welded and fixed, after crossbeam 2 End is welded and fixed with folder 3.

A upper rack posts 4 of posteriorly top extension are mounted with above the rear portion of folder 3, after folder 3 Two lower fulcrum bars 5 of posteriorly lower section extension are mounted with below portion, installs and fixes between the lower end of two lower fulcrum bars 5 There is bottom guard plate 14.In the present embodiment, upper rack posts 4 and lower fulcrum bar 5 are arcuate shape, lift moulded aesthetic, Lift overall structural strength simultaneously.

Also include seat pipe 6 as battery case, that upper end is open, the lower end of seat pipe 6 positioned at the lower end of two lower fulcrum bars 5 it Between and between bottom guard plate 14 sealing welding is fixed.In the present embodiment, the front ends of upper rack posts 4 is welded and fixed with folder 3, after The front side wall with seat pipe 6 is held to be welded and fixed；The front end of lower fulcrum bar 5 is welded and fixed with folder 3, rear end and bottom guard plate 14 are welded It is fixed.Because the lower end of seat pipe 6 is between two lower fulcrum bars 5, therefore to a certain extent, lower fulcrum bar 5 carries to the lower end of seat pipe 6 Protection has been supplied, has avoided the deformation of colliding with to seat pipe 6.So, when battery inserting is installed to the inner chamber of seat pipe 6, lower fulcrum bar 5 Lateral protection improves the ability of battery anticollision destruction.

The upper end installation bicycle saddle of seat pipe 6, so by using mechanisms such as dismounting-proof bolts, lifts the antitheft of battery Effect.In order to preferably be supported to vehicle seat, in the present embodiment, triangle is mounted with rear side of the middle and upper part of seat pipe 6 Support box body 7, support box body 7 use metallic plate punch forming, afterwards welded and installed to seat pipe 6 middle and upper part rear side.

Two relative bottom otic placodes 15 are provided with the bottom of bottom guard plate 14, rear portion is provided with two relative rear portion otic placodes 8.As shown in FIG., bottom guard plate 14 is L-shaped, and rear part edge is tilted and is welded and fixed with the rear wall bottom of seat pipe 6 upward, The intensity being welded to connect between bottom guard plate 14 and seat pipe 6 and sealing effectiveness can be so lifted to a certain extent.

Also include two rear stayses 17 that relative, bottom carries dropout 12, behind the middle part of each rear stays 17 Side is provided with the back arm 11 of posteriorly top extension, and the upper end of two rear stayses 17 is hinged with two bottom otic placodes 15 respectively to be connected Connect, trailing wheel is arranged between two dropout 12.In the present embodiment, both back arm 11 and rear stays 17 are integrated punch forming Structure, dropout 12 are obtained by stamping out notch in the lower end of rear stays 17.

In the present embodiment, mandrel 16 is equipped with the outside of two bottom otic placodes 15, it is equal in the upper end of two rear stayses 17 Provided with axle sleeve, two axle sleeves are respectively sleeved on two mandrels 16.

Also include damping spring 9, the upper end of damping spring 9 is articulated and connected with two rear portion otic placodes 8, under damping spring 9 The upper end with two back arms 11 is held to be articulated and connected.Damping spring 9 is existing known assemblies, including the spring in outside and middle part Expansion link, the upper end of expansion link are articulated and connected with two rear portion otic placodes 8, and the lower end of expansion link and the upper end of two back arms 11 are cut with scissors Connect in succession.

For the ease of the installation of rear mudguard, in the present embodiment, in addition to multiple connecting holes, for installing keep off mud The rear installing plate 13 of plate, the front end of rear installing plate 13 between two bottom otic placodes 15 and are welded and fixed.

Claims (7)

1. a kind of novel damping electric bicycle fame, it is characterized in that：Including crossbeam (2), install and fix in the front end of crossbeam (2) There are front fork tube (1), rear end to be mounted with folder (3)；Posteriorly top is mounted with above folder (3) rear portion A piece upper rack posts (4) of extension, two lower fulcrum bars of posteriorly lower section extension are mounted with below folder (3) rear portion (5) bottom guard plate (14), is mounted between the lower end of two lower fulcrum bars (5)；Also include as battery case, upper end to open The seat pipe (6) of mouth, the lower end of seat pipe (6) seal between the lower end of two lower fulcrum bars (5) and between bottom guard plate (14) It is welded and fixed；After two relative bottom otic placodes (15), rear portion are provided with the bottom of bottom guard plate (14) provided with relative two Portion's otic placode (8)；Also include two rear stayses (17) that relative, bottom carries dropout (12), in each rear stays (17) Middle part on rear side of be provided with the back arm (11) of posteriorly top extension, the upper ends of two rear stayses (17) respectively with two bottom ears Plate (15) is articulated and connected, in addition to damping spring (9), and the upper end of damping spring (9) is articulated and connected with two rear portion otic placodes (8), The lower end of damping spring (9) and the upper end of two back arms (11) are articulated and connected.

2. novel damping electric bicycle fame as claimed in claim 1, it is characterized in that：Back arm (11) and rear stays (17) Both are integrated punch forming structure, and dropout (12) is obtained by stamping out notch in the lower end of rear stays (17).

3. novel damping electric bicycle fame as claimed in claim 2, it is characterized in that：In the outer of two bottom otic placodes (15) Side is equipped with mandrel (16), and axle sleeve is equipped with the upper end of two rear stayses (17), and two axle sleeves are respectively sleeved at two mandrels (16) on.

4. novel damping electric bicycle fame as claimed in claim 1, it is characterized in that：Rear side in seat pipe (6) middle and upper part It is mounted with the support box body (7) of triangle.

5. novel damping electric bicycle fame as claimed in claim 1, it is characterized in that：Also include carrying multiple connecting holes , rear installing plate (13) for installing mud guard, the front end of rear installing plate (13) between two bottom otic placodes (15) and It is welded and fixed.

6. the novel damping electric bicycle fame as described in any one of claim 1 to 5, it is characterized in that：Front fork tube (1) and horizontal stroke The front end of beam (2) is welded and fixed, and rear end and the folder (3) of crossbeam (2) are welded and fixed；The front end of upper rack posts (4) and folder (3) it is welded and fixed, the front side wall of rear end and seat pipe (6) is welded and fixed；The front end of lower fulcrum bar (5) is welded and fixed with folder (3), Rear end is welded and fixed with bottom guard plate (14).

7. the novel damping electric bicycle fame as described in any one of claim 1 to 5, it is characterized in that：Upper rack posts (4) and under Pole (5) is arcuate shape.