CN215245313U - Folding bicycle frame - Google Patents
Folding bicycle frame Download PDFInfo
- Publication number
- CN215245313U CN215245313U CN202120982710.4U CN202120982710U CN215245313U CN 215245313 U CN215245313 U CN 215245313U CN 202120982710 U CN202120982710 U CN 202120982710U CN 215245313 U CN215245313 U CN 215245313U
- Authority
- CN
- China
- Prior art keywords
- frame
- connecting rod
- folding bicycle
- bicycle frame
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Motorcycle And Bicycle Frame (AREA)
Abstract
A folding bicycle frame comprises a frame front part and a frame rear part; compared with the prior art, when the frame of the folding bicycle is transported, the two parts of the front part and the rear part of the frame of the folding bicycle are folded, the volume of the folded bicycle frame is greatly reduced, and the folding bicycle is convenient to pack and transport; on the other hand, the grooves and the notches which are arranged on the first connecting rod and the second connecting rod can be effectively positioned and conveniently folded, and the counter bores and the threaded holes which are arranged on the first connecting rod and the second connecting rod are simply and conveniently connected with the front part and the rear part of the frame, so that the frame of the folding bicycle is safer and more stable when running.
Description
Technical Field
The utility model belongs to the technical field of the bicycle, especially, folding bicycle frame.
Background
Traditional bicycle frame mainly bends with the iron pipe, flattens, through high temperature welding with the pipe butt fusion together, the bicycle frame volume that the preparation was accomplished like this is great, the quality is heavy, causes the difficulty of packing and transportation, and the general application of current folding bicycle frame is on small-size bicycle, and small-size bicycle load is limited not to be suitable for all kinds of crowds, consequently, the folding bicycle frame that need design a folding simple and convenient, firm in connection is reliable, it is littleer to occupy the volume urgently.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome the defect among the above-mentioned prior art, provide a folding bicycle frame that folding simple and convenient, firm in connection is reliable, occupy the volume littleer.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a folding bicycle frame comprises a frame front part and a frame rear part; the lower end of the front part of the frame is provided with a first connecting rod, the upper end of the rear part of the frame is provided with a second connecting rod matched with the first connecting rod, and the first connecting rod is rotatably connected to the second connecting rod.
As a preferred scheme of the utility model, the frame front portion includes top tube, first low tube and seatpad pole, and the head rod is connected between first low tube and seatpad pole, and the one end that the head rod is close to the seatpad pole is equipped with the recess.
As an optimized scheme of the utility model, the frame rear portion includes back upper fork, back lower fork, connecting piece, back upper fork, back lower fork, connecting piece integrated into one piece.
As a preferred scheme of the utility model, the back is gone up the fork and is connected the second connecting rod including the kink and the second low tube of symmetry between kink and the second low tube, and the second connecting rod is close to and is equipped with the notch in the one end of kink, the notch forms location fit with the recess.
As an optimized scheme of the utility model, still laid the slide rail that caves in the second connecting rod, the slide rail from left to right runs through the second connecting rod.
As a preferred scheme of the utility model, be equipped with the counter bore on the head rod, be equipped with on the second connecting rod with the screw hole of counter bore looks adaptation, head rod and second connecting rod threaded connection.
As an optimized proposal of the utility model, the rear upper fork also comprises a support rod, and when the front part of the frame is connected with the rear part of the frame, the support rod is connected with the seat cushion rod to form a straight line.
As an optimized scheme of the utility model, when the frame front portion is connected with the frame rear portion, first low tube links to each other with the second low tube and becomes a straight line.
As an optimized proposal of the utility model, the rear end of the connecting piece is provided with a rear axle mounting groove.
As an optimized scheme of the utility model, all install the line piece on frame front portion, the frame rear portion.
The beneficial effects of the utility model are that, compare with prior art: when the frame of the folding bicycle is transported, the two parts, namely the front part and the rear part of the frame of the folding bicycle, are folded, so that the volume of the frame of the folding bicycle is greatly reduced, and the packing and the transportation are convenient;
on the other hand, the grooves and the notches which are arranged on the first connecting rod and the second connecting rod can be effectively positioned and conveniently folded, and the counter bores and the threaded holes which are arranged on the first connecting rod and the second connecting rod are simply and conveniently connected with the front part and the rear part of the frame, so that the frame of the folding bicycle is safer and more stable when running.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the front portion of the frame of the present invention;
FIG. 3 is a schematic structural view of the rear portion of the frame of the present invention;
FIG. 4 is a schematic structural view of the rear portion of the frame of the present invention when folded;
FIG. 5 is a top view of the rear portion of the frame of the present invention;
reference numbers in the figures: the frame comprises a frame front portion 1, a frame rear portion 2, a wire passing block 3, a first connecting rod 11, an upper pipe 12, a first lower pipe 13, a seat cushion rod 14, a rear upper fork 21, a rear lower fork 22, a connecting piece 23, a groove 111, a counter bore 112, a second connecting rod 211, a bending portion 212, a second lower pipe 213, a supporting rod 214, a mounting groove 231, a sliding rail 2111, a threaded hole 2112 and a notch 2113.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-5, a folding bicycle frame comprises a frame front part 1, a frame rear part 2; the lower end of the front part 1 of the frame is provided with a first connecting rod 11, the upper end of the rear part 2 of the frame is provided with a second connecting rod 211 matched with the first connecting rod 11, and the first connecting rod 11 is rotatably connected to the second connecting rod 211.
Specifically, in the transportation process, the first connecting rod 11 is rotated, the corresponding frame front part 1 rotates until the frame front part 1 is folded at the rear end of the frame rear part 2, after the folding is finished, the length of the whole bicycle frame is the length of the frame rear part 2, the volume of the whole bicycle frame is reduced, and the packing and the carrying of workers are facilitated; during the installation process, the first connecting rod 11 of the frame front part 1 and the second connecting rod 211 of the frame rear part 2 are connected in a repositioning and matching mode, and the installation of the whole folding bicycle frame is completed.
The frame rear part 2 comprises an upper rear fork 21, a lower rear fork 22 and a connecting piece 23, wherein the upper rear fork 21, the lower rear fork 22 and the connecting piece 23 are integrally formed, and the upper rear fork 21, the lower rear fork 22 and the connecting piece 23 are connected by welding.
The rear upper fork 21 comprises a symmetrical bent part 212 and a second lower tube 213, the second connecting rod 211 is connected between the bent part 212 and the second lower tube 213, a notch 2113 is arranged in one end of the second connecting rod 211 close to the bent part 212, and the notch 213 and the groove 2113 form a positioning fit.
Specifically, when the frame front portion 1 and the frame rear portion 2 are connected, the first connecting rod 11 and the second connecting rod 211 are in positioning fit through the groove 111 and the notch 213, and when the frame front portion 1 and the frame rear portion 2 are folded, the groove 111 of the first connecting rod 11 moves towards the direction away from the notch 213 until the frame front portion 1 and the frame rear portion 2 are folded.
An inward-recessed sliding rail 2111 is further arranged in the second connecting rod 211, the sliding rail 2111 penetrates through the second connecting rod 211 from left to right, and the arrangement of the sliding rail 2111 avoids interference when the first connecting rod 11 is matched with the second connecting rod 211; the first connecting rod 11 is provided with a counter bore 112, the second connecting rod 211 is provided with a threaded hole 2112 matched with the counter bore 112, and the first connecting rod 11 is in threaded connection with the second connecting rod 211.
Specifically, when the frame front part 1 is connected with the frame rear part 2, the first connecting rod 11 and the second connecting rod 211 are connected through installing screws in the counter bore 112 and the threaded hole 2112, so that the stability of connection of the frame front part 1 and the frame rear part 2 is ensured, and the use safety of the frame of the folding bicycle is ensured; when the frame front part 1 and the frame rear part 2 are folded, the first connecting rod 11 rotates and slides in the slide rail 2111.
The seat upper fork 21 further includes a support rod 214, the support rod 214 and the seat cushion rod 14 are connected in a straight line and the corresponding first down tube 13 and second down tube 213 are connected in a straight line when the frame front portion 1 and the frame rear portion 2 are connected, and the support rod 214 and the seat cushion rod 14 do not form a straight line and the first down tube 13 and the second down tube 213 do not form a straight line when the bicycle frame is folded.
The rear end of the connecting piece 23 is provided with a rear axle mounting groove 231, the front part 1 and the rear part 2 of the frame are both provided with the wire passing block 3, and the wire passing hole of the wire passing block 3 is internally provided with a relevant mounting wire on the folding bicycle.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the terms of the frame front 1, the frame rear 2, the wire passing block 3, the first connecting rod 11, the upper tube 12, the first lower tube 13, the seat cushion rod 14, the rear upper fork 21, the rear lower fork 22, the connecting piece 23, the groove 111, the counter bore 112, the second connecting rod 211, the bent part 212, the second lower tube 213, the supporting rod 214, the mounting groove 231, the sliding rail 2111, the threaded hole 2112, the notch 2113 and the like, but do not exclude the possibility of using other terms; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. A folding bicycle frame which is characterized in that: comprises a frame front part (1) and a frame rear part (2); the frame is characterized in that a first connecting rod (11) is arranged at the lower end of the front portion (1) of the frame, a second connecting rod (211) matched with the first connecting rod (11) is arranged at the upper end of the rear portion (2) of the frame, and the first connecting rod (11) is rotatably connected to the second connecting rod (211).
2. A folding bicycle frame as claimed in claim 1, wherein: frame front portion (1) is including top tube (12), first low tube (13) and seatpad pole (14), and first connecting rod (11) are connected between first low tube (13) and seatpad pole (14), and one end that first connecting rod (11) are close to seatpad pole (14) is equipped with recess (111).
3. A folding bicycle frame as claimed in claim 1, wherein: the frame rear portion (2) comprises a rear upper fork (21), a rear lower fork (22) and a connecting piece (23), and the rear upper fork (21), the rear lower fork (22) and the connecting piece (23) are integrally formed.
4. A folding bicycle frame as claimed in claim 3, wherein: the rear upper fork (21) comprises a symmetrical bending part (212) and a second lower pipe (213), a second connecting rod (211) is connected between the bending part (212) and the second lower pipe (213), a notch (2113) is arranged in one end, close to the bending part (212), of the second connecting rod (211), and the notch (213) and the groove (2113) form positioning fit.
5. A folding bicycle frame as claimed in claim 4, characterised in that: an invaginated sliding rail (2111) is further arranged in the second connecting rod (211), and the sliding rail (2111) penetrates through the second connecting rod (211) from left to right.
6. A folding bicycle frame as claimed in claim 5, characterised in that: the connecting rod is characterized in that a counter bore (112) is formed in the first connecting rod (11), a threaded hole (2112) matched with the counter bore (112) is formed in the second connecting rod (211), and the first connecting rod (11) is in threaded connection with the second connecting rod (211).
7. A folding bicycle frame as claimed in claim 6, characterised in that: the rear upper fork (21) further comprises a support rod (214), and when the front frame part (1) and the rear frame part (2) are connected, the support rod (214) and the seat cushion rod (14) are connected into a straight line.
8. A folding bicycle frame as claimed in claim 1, wherein: when the frame front part (1) is connected with the frame rear part (2), the first lower pipe (13) and the second lower pipe (213) are connected into a straight line.
9. A folding bicycle frame as claimed in claim 3, wherein: the rear end of the connecting piece (23) is provided with a rear shaft mounting groove (231).
10. A folding bicycle frame as claimed in claim 1, wherein: and the front part (1) and the rear part (2) of the frame are both provided with wire passing blocks (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120982710.4U CN215245313U (en) | 2021-05-10 | 2021-05-10 | Folding bicycle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120982710.4U CN215245313U (en) | 2021-05-10 | 2021-05-10 | Folding bicycle frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215245313U true CN215245313U (en) | 2021-12-21 |
Family
ID=79455119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120982710.4U Active CN215245313U (en) | 2021-05-10 | 2021-05-10 | Folding bicycle frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215245313U (en) |
-
2021
- 2021-05-10 CN CN202120982710.4U patent/CN215245313U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215245313U (en) | Folding bicycle frame | |
| CN103192214A (en) | Processing method and auxiliary device of combined assembly of curved-beam motorcycle frame front part | |
| CN102358372A (en) | Frame assembly for foldable electric vehicle | |
| CN204378319U (en) | A kind of plug-in type desk | |
| CN217893088U (en) | General seat support for bicycle and electric vehicle | |
| CN103387033B (en) | Cycle arm with fastening frame | |
| CN206293822U (en) | A kind of pulley block | |
| CN206358200U (en) | Steering column and vehicle | |
| CN206938978U (en) | Integral in-vehicle handle and front fork attachment structure | |
| CN209479867U (en) | A kind of automobile-used separate type frame of slide plate | |
| CN203184885U (en) | Auxiliary device for processing camber beam motorcycle frame front body combination assembly | |
| CN207449705U (en) | A kind of armrest assembly | |
| CN108688427A (en) | Twist beam rear axle and its manufacturing method | |
| CN208732399U (en) | The bottom support frame of lift car | |
| CN208325525U (en) | A kind of cycle frame | |
| CN2401426Y (en) | Foldable pram with linkage brake | |
| CN203503460U (en) | Winding clamp used for winding machine | |
| CN211679338U (en) | Pipe head holder of cold drawing machine | |
| CN216611469U (en) | Electric vehicle brake cable | |
| CN203305912U (en) | Mandril locking mechanism for top holder | |
| CN204937325U (en) | The Electrical Bicycle bicycle basket that a kind of flattening tubing makes | |
| CN217575481U (en) | Pipe fitting structure for vehicle handle | |
| CN211901857U (en) | Corridor spool convenient to dismouting | |
| CN204840906U (en) | Assemble convenient swing of travelling | |
| CN213706842U (en) | Tubular lifting hook with adjustable arc-shaped plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |