CN201189920Y

CN201189920Y - Internal sealed bicycle rack folder

Info

Publication number: CN201189920Y
Application number: CNU2007201993731U
Authority: CN
Inventors: 吴志剑
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-18
Filing date: 2007-12-18
Publication date: 2009-02-04
Anticipated expiration: 2017-12-18

Abstract

The utility model relates to an improvement on a folder for a prior bicycle frame and aiming at solving the defects that the prior square box-shaped folder has low strength and convenient operation, and is not artistic. The utility model can ensure that a left body and a right body of an axle head which are welded at both ends of a bicycle frame pipe can rotate and be opened and closed through a rotating shaft, thereby causing the bicycle frame to be folded or unfolded, namely, causing a bicycle to be folded or unfolded. A pin axle is installed on the right body and is movably connected with a latch hook; and a pin axle, a hand wheel, screw rod and a socket sleeve are installed on the left body. When the folder is folded and unfolded, the latch hook can be inserted in and pulled out of the upper rectangular hole of the left body; when a V shape part at the head part of the latch hook encounters the pin axle on the left body, the head part of the latch hook can automatically and vertically swing. The hand wheel is screwed and the screw rod moves up and down to tightly press or loosen the latch hook, thereby the purpose of locking or lessening the folder is achieved. Lug bosses or grooves are arranged on the left body and the right body so that the folded folder is tabled tightly without looseness. The utility model has the advantages that the locking structure is sealed internally, the strength is large, the appearance is artistic, and the operation is convenient, and is suitable for various folding bicycles.

Description

The internal enclosed bicycle frame folder

Technical field:

The utility model relates to a kind of bicycle frame folder, relates more specifically to a kind of internal enclosed bicycle frame folder.

Background technology:

Folding Bicycle bicycle frame folding unit on the existing market, common all is that the two square boxes that can amount to are main body, again the square box formula structure of locking with cam.This structure, no spindle nose can insert vehicle frame Guan Houzai welding on the square box, and the vehicle frame pipe can only be affixed on respectively on the square box surface and weld, and linking intensity is low.And with cam is line contact friction self-locking, and self-lock force is little, the car vibrations of riding, and the folder cam just easily unclamps.For preventing to unclamp, often to adjust the cam pressure boost, adjust tension, the little person of hand-power just pulls motionless, pine as women, old man etc. and does not open cam handle; Adjusted pine, folder just lock is not tight, inconvenient operation.For preventing the middle folder shake pine of riding, latch structure of the normal increase of this square box formula folder insures, and makes complex structure, operates more inconvenient.And the square box volume is flat, big, and moulding is very not attractive in appearance.

Summary of the invention:

The purpose of this utility model provides a kind of bicycle frame folder of internal enclosed locking mechanism, and this folder self-lock force is strong, and operation has easily overcome many defectives that existing square box formula folder exists.

The purpose of this utility model is achieved in that the utility model comprises right body, left body, rotating shaft, handwheel, cover for seat, screw mandrel, bearing pin, latch hook; Right body connects by the rotating shaft activity with left body; One end of right body, left body is manufactured with the spindle nose that shape and vehicle frame pipe orifice match, and is pressed into the vehicle frame pipe and welds with it, and the other end is shaped on the square hole; Be manufactured with boss on the right body, be manufactured with groove on the left body, when right body and left body were closed, boss embedded the groove tight engagement; Be provided with bearing pin in the body of a left side, be provided with bearing pin and latch hook in the right body, latch hook one end connects with bearing pin is movable, and it is V-shaped that other end head is made inside and outside inclined-plane; When left and right body was closed, the outer inclined-plane of latch hook head chance bearing pin can be raised automatically and cross bearing pin, and back bevel is shelved on the bearing pin; Cover for seat has negative thread and wire rod thread engagement, and cover for seat and left body and function socket head cap screw are fixedly connected; Screw handwheel, screw mandrel moves downward head and compresses latch hook, and the inclined-plane hooks bearing pin in the latch hook, and screw mandrel and cover for seat are flat of thread friction engagements, and big by the theory of machines self-lock force, folder is firmly self-locking just.Unscrew handwheel, can unclamp self-marketing and elimination compresses, the latch hook back bevel can make it lift on automatically again and cross bearing pin and withdraw from the square hole, and folder just launches, and is manufactured with shoulder on the screw mandrel, can stop screw mandrel to screw out cover for seat.

The utility model as above designs, and except that the handwheel of operation, all interior envelope of all the other locking members places in the body of the left and right sides; And the operation handwheel places folder top, hooks bicyclist's trouser legs with in preventing to ride.

The utility model compact conformation, easy to operate, the application of force is little, reliable lock, intensity is big, and modern design is attractive in appearance.

Description of drawings:

Fig. 1 is applied to position view on the cycle frame for the utility model, and piece number 13 is the utility model.

Fig. 2 is the utility model structural representation.

Fig. 3 is the utility model STRUCTURE DECOMPOSITION scheme drawing

The specific embodiment:

The internal enclosed bicycle frame folder that the utility model provides mainly contains: right body 1, rotating shaft 2, handwheel 3, screw 4, packing ring 5, socket head cap screw 6, cover for seat 7, screw mandrel 8, left body 9, bearing pin 10, latch hook 11, bearing pin 12.Press shown in Fig. 2,3, principle is: rotating shaft 2 connects left body 9, right body 1, left and right body can be rotated around it, thereby make the folder folding, be i.e. the folding or expansion of vehicle frame or car; Be manufactured with boss B on the right body, be manufactured with groove C on the left body, when left and right body was closed, boss B embedded groove C tight engagement, make accurately location and loosening of folder, and linking intensity was very big; Also be manufactured with the spindle nose A that shape and vehicle frame pipe orifice match on a left side body 9, the right body 1, can embed its welding of vehicle frame Guan Bingyu, make between vehicle frame pipe and folder linking intensity big; Device has

latch hook

11 and 12 movable cooperations of bearing pin on the right body 1, and latch hook can swing up and down in the square hole of right body; It is V-shaped that latch hook 11 heads are made inside and outside inclined-plane, device has bearing pin 10 and fixes cover for seat 7 on it with socket head cap screw on the body 9 of a left side, be shaped on inner bolt hole and screw mandrel 8 engagements on the cover for seat, the hemisphere face of band shoulder E is made in the screw mandrel lower end, and shoulder E can stop screw mandrel 8 to screw out cover for seat 7; Screw mandrel 8 another tops by screw 4, packing ring 5, be fixed with handwheel 3, rotation hand wheel can make screw mandrel rise or press down, and screw mandrel lower end sphere is unclamped or compresses latch hook; When bicycle need be ridden, around rotating shaft 2, closed folder left side body 9 right bodies 1 made latch hook 11 introduce left body 9 square holes, and when bearing pin 10 peripheries were run on the inclined-plane V-arrangement that is incorporated into latch hook outside, outer inclined-plane can promote latch hook and upwards swing and make latch hook cross bearing pin 10; When fully closed, the inclined-plane is on the bearing pin 10 in the latch hook V-arrangement to left and right body, and screw handwheel 3 and compress latch hook 11 this moment, and the inclined-plane is with regard to the firm bearing pin 10 that hooked in the V-arrangement of latch hook; Because being screw-threaded engagement, screw mandrel 8 and 7 of cover for seat connect, according to theory of machines, screw thread is the face friction self-locking, and it is the line friction self-locking than cam, and self-lock force is many greatly, mechanically screw threads for fastening connects, the application that grows on trees is so failure-free has been locked folder, it can not unclamped because of vibrations in car is ridden, and car is just rideable.Otherwise, unscrew handwheel 3, make screw mandrel 8 rise to most significant bit, screw mandrel upper shoulder E runs into cover for seat 7 end faces, stops screw mandrel to screw out cover for seat, and folder is just deployable, in the V-arrangement of latch hook 11 inclined-plane can make latch hook upwards swing cross bearing pin 10 and draw left body 9, vehicle frame or car are just folding.

Claims

1. an internal enclosed bicycle frame folder comprises right body, left body, rotating shaft, handwheel, cover for seat, screw mandrel, bearing pin, latch hook, it is characterized in that right body connects by the rotating shaft activity with left body; One end of right body, left body is manufactured with the spindle nose that shape and vehicle frame pipe orifice shape match, and the other end is manufactured with the square hole, and bearing pin is housed; Latch hook is equipped with by bearing pin in the square hole on the right body, and latch hook connects with bearing pin is movable; Latch hook can be introduced in the square hole on the body of a left side; The head of latch hook is made V-arrangement, and the V-arrangement front bevel of latch hook was run into bearing pin when left and right body was closed, can raise automatically and cross bearing pin, and back bevel is shelved on the bearing pin; Screw mandrel one end and handwheel are fixedly connected, the other end and the cover for seat negative thread engagement that is fixed on the left body; Rotation hand wheel just can compress or unclamp latch hook, and the back bevel of latch hook hooks bearing pin when compressing, and silk pavilion, the self-locking of cover for seat screw-threaded engagement make left and right body not loosening; Launch left and right body when unclamping, the back bevel of latch hook is run into bearing pin and can be raised automatically and draw the square hole.

2. internal enclosed bicycle frame folder according to claim 1 is characterized in that right body is provided with boss, and left body is provided with groove, when left and right body is closed, and boss and groove tight engagement.

3. internal enclosed bicycle frame folder according to claim 1 is characterized in that left body is provided with cover for seat, and cover for seat is captiveed joint with left body, and cover for seat connects with the wire rod thread engagement, is manufactured with shoulder (E) on the screw mandrel, can stop screw mandrel to screw out cover for seat.

4. according to any one described internal enclosed bicycle frame folder of claim 1 to 3, it is characterized in that handwheel places the top of left body, hook rider's trouser legs in can avoiding riding.