CN206012836U

CN206012836U - Flexible handle type portable bicycle

Info

Publication number: CN206012836U
Application number: CN201620940603.4U
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2017-03-15
Anticipated expiration: 2026-08-25

Abstract

A kind of flexible handle type portable bicycle, including the handle that stretches, front fork stem, side arm, middle frame, after-frame, vehicle seat, front-wheel, trailing wheel and drive mechanism, flexible handle is by left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle are constituted, side arm is formed by connecting by rotary part and front-axle beam, middle frame is by twin beams pipe, first two-tube set, rear casing, Five-way tube, pleated sheet, first latch hook member and two shock-absorbing polyurethane blocks are formed by connecting, after-frame is by left back breeches pipe, right back breeches pipe, second two-tube set and heel brace are constituted, vehicle seat is by seat pipe, vehicle seat folded piece, second latch hook member, seat bar, saddle and folding locator card are formed by connecting, front-wheel is installed on front axle, trailing wheel is installed on after-frame, drive mechanism includes axis, two cranks, chain wheel, two pedals, prime minor sprocket, rear class sprocket wheel, flywheel, prime chain and rear class chain.

Description

Flexible handle type portable bicycle

Technical field：

This utility model is related to a kind of folding portable bicycle, more particularly to a kind of flexible handle type Portable self-propelled Car.

Technical background：

Have several money folding bicycles in the market, although have a folding bicycle that folding rate is fast, but due to structure and The reasons such as construction, can not possibly also reach the satisfaction being put in knapsack after folding.

Utility model content：

The purpose of this utility model is to provide for a kind of handlebar in the new type foldable mode of the handle type that stretches, after after-frame is related Wheel collapsed forward, vehicle seat fold the mode with side arm folding linkage, the flexible handle that can be put into after having folded in knapsack Type portable bicycle.The purpose of this utility model is realized in；Flexible handle type portable bicycle, turns including flexible , front fork stem, side arm, middle frame, after-frame, vehicle seat, front-wheel, trailing wheel and drive mechanism, it is characterized in that：Flexible handle includes left hand , right handgrip, upper latch fitting, lower latch fitting and handle, left hand being to be formed as right-angle bending by the upper end of pipe with right handgrip, left hand With right handgrip right-angle bending at below outside be provided with screwed hole, upper latch fitting is made up of upper clamping piece, banking stop and clamping screw, Upper clamping piece is the blank of an aluminium extruded type, and respectively there are the circular hole of a upward and downward, two upward and downwards of upper clamping piece in the left and right two ends of upper clamping piece Circular hole on be also connected with cracking for upward and downward, the left and right that upper clamping piece upward and downward cracks rearward is respectively provided with the screwed hole of a upward and downward, The bottom of the screwed hole of two upward and downward of left and right that upper clamping piece upward and downward cracks rearward is allowed spacing by two bolt twist-ons, one banking stop Piece is connected to the bottom side of upper clamping piece, and the centre of upper clamping piece has one to crack vertical longitudinal hole with upper clamping piece upward and downward, and upper clamping piece is indulged Connect the stop nut of a clamping screw to the rear end in hole, left hand is the circle that upper clamping piece or so two ends upward and downward is penetrated with right handgrip Kong Zhong, and by left hand with right handgrip right-angle bending at below screwed hole corresponding to upper clamping piece bottom side, with two bolts point Be not screwed into left hand with right handgrip right-angle bending at below screwed hole in, by left hand making to rotate with right handgrip and upper clamping piece Spacing, also, be fastened to left hand with right handgrip on two bolts, coordinate with the banking stop of the bottom side for being connected to upper clamping piece, energy As left hand spacing when launching with right handgrip, clamping screw is penetrated in the longitudinal hole of upper clamping piece, and is screwed into stop nut In, tighten clamping screw and can tighten up cracking for upper clamping piece upward and downward, upper clamping piece is locked left hand handle and right handgrip so that left hand handle Fix with right handgrip and can not rotate；Lower latch fitting is made up of lower clamping piece and clamping screw, and lower clamping piece is the blank of an aluminium extruded type, Respectively there is the circular hole of a upward and downward at the anterior left and right two ends of lower clamping piece, are connected with upward and downward on the circular hole of two anterior upward and downwards of lower clamping piece Crack, the left end in the middle part of lower clamping piece has the circular hole of a upward and downward, the centre at lower clamping piece rear portion to have the circular hole of a upward and downward, lower folder The anterior centre of part has one to crack vertical longitudinal hole with lower clamping piece front portion upward and downward, one lock of rear end connection of lower clamping piece longitudinal hole The stop nut of tight bolt, in the middle part of lower clamping piece, the circular hole of left end upward and downward is connected with the upper end of front fork stem, and front fork stem is by pipe, circle Post and front axle are constituted, and fill in cylinder in the bottom pore of pipe, the bottom of pipe to and have a cross-perforating, front axle together with cylinder Penetrate in the bottom of pipe and the cross-perforating of cylinder, and win to the right, left hand handle and right handgrip penetrate lower clamping piece or so two ends In the circular hole of upward and downward, clamping screw is penetrated in the longitudinal hole of lower clamping piece, and is screwed in stop nut, tightens clamping screw energy Tighten up cracking for lower clamping piece upward and downward, lower clamping piece locked left hand handle and right handgrip so that left hand handle and right handgrip fix and not Can slide up and down, handle is connected to left hand the top with right handgrip, and the top positioned at upper clamping piece；Side arm by rotary part and Front-axle beam is constituted, and rotary part is installed on the upward and downward circular hole in the middle of lower clamping piece rear portion, and front-axle beam is the slice processing part of aluminium extruded type, The front end of front-axle beam is in grooved, and the both sides up and down of front-axle beam grooved have mutual to perforation, and the upper and lower of front-axle beam rear end respectively has one horizontal Perforation, front-axle beam grooved mutual to be punched through to lock bolt connection rotary part；Middle frame includes twin beams pipe, first two-tube Set, rear casing, Five-way tube, pleated sheet, the first latch hook member and two shock-absorbing polyurethane blocks, twin beams pipe are made up of two flat tubes of left and right, double The front end close-fitting of beam pipe is socketed the first two-tube set, and the first two-tube set is the slice processing part of an aluminium extruded type, the first two-tube set top There are two slotted holes, two slotted holes of the first two-tube set are corresponding with the cast of two flat tube of left and right of twin beams pipe, the first two-tube set The grooved that Open Side Down arranged at bottom, and the both sides of the first two-tube set Open Side Down grooved are provided with mutual to perforation, the first two-tube set Mutual to being punched through being connected with horizontal perforation rotation below front-axle beam rear end to locking bolt, rear casing is cutting for an aluminium extruded type Section workpiece, the bottom of rear casing have two slotted holes, the cast phase of two slotted holes of rear casing and two flat tube of left and right of twin beams pipe Corresponding, the front-end and back-end that the grooved of opening upwards, rear casing opening upwards grooved both sides are arranged at the top of rear casing are respectively provided with one It is mutual that to perforation, rear casing is located at the laterally vertical leading section of two slotted holes and is inconjunction with twin beams pipe and is provided with a horizontal perforation, Five-way tube is socketed in the cross-perforating in the horizontal upright front portion of two slotted hole of rear casing, and there is a cross-perforating rear end of pleated sheet, Pleated sheet is connected to the back lower place of rear casing by bolt and nut, with will be mutual for rear casing grooved both sides rear end right to locking bolt Perforation is connected with the latch hook of the first latch hook member, and the first latch hook member is made up of latch hook and latch hook spring, and there is an elongated hole latch hook front portion, and one Bolt is penetrated in the elongated hole of the first latch hook member, and is penetrated in latch hook spring, then is screwed into the rear of bottom land on rear casing In screwed hole, the second two-tube set of the first latch hook member energy hook lock after-frame in the presence of latch hook spring, two shock-absorbing polyurethane blocks are solid In two slotted holes of rear casing rear end, in two shock-absorbing polyurethane blocks and the left back breeches pipe of after-frame and right back breeches pipe front end pore Two nylon plugs offset cooperation can play shock-absorbing effect；After-frame is made up of left back breeches pipe, right back breeches pipe, the second two-tube set and heel brace, The front end close-fitting of left back breeches pipe and right back breeches pipe is socketed the second two-tube set, the shape and size of the second two-tube set and the first two-tube set Identical, the second two-tube set is mutual to being punched through being connected to locking bolt and rotate with the cross-perforating of pleated sheet rear end, heel brace company The left side being connected in the middle part of left back breeches pipe；Vehicle seat includes seat pipe, vehicle seat folded piece, the second latch hook member, seat bar, saddle and folds positioning Card, vehicle seat folded piece connect part, connecting rod and U-shaped plug by diapsid, and diapsid connects the front side that part is fastened to seat pipe lower end, and diapsid connects Perforation is rotated mutual with rear casing grooved both sides front end of the circular hole of part is connected, and the rearward end of connecting rod connects the length of part with diapsid Circular hole connects, in the U-shaped slotted hole for filling in ring part, and the lower section positioned at rod rear end portion, two front ends of connecting rod and front-axle beam The perforation that the top of rear end is horizontal connects, and the grooved for being connected with the second latch hook member on front side of seat pipe lower end connects part, the second latch hook member Latch hook and grooved connect that part both sides are mutual to be connected to perforation, the second latch hook member connects part, latch hook, latch hook spring and interlocking by grooved Bolt is constituted, and interlocking bolt is fastened on rear casing in the screwed hole of the front of bottom land, the shape of the latch hook of the second latch hook member Similar to the latch hook of the first latch hook member, a bolt is penetrated in the elongated hole of the second latch hook member, and is penetrated in latch hook spring, then is screwed into To in seat pipe, the latch hook of the second latch hook member by the effect of interlocking spring can with the cup head interlocking of interlocking bolt, at the top of seat pipe Pore in connect, on seat bar install saddle, fold locator card be connected to the first two-tube set back upper place；Front-wheel is installed on front axle, Trailing wheel is installed on the rear end of after-frame, opens the latch hook of the second latch hook member of header board, and by vehicle seat collapsed forward, in the effect of connecting rod Under, vehicle seat is inconjunction with side arm, flexible handle, front fork stem and front-wheel and folds to the lower section of middle frame together, reaches perfect folding and imitates Really, and in the presence of locator card engaging seat pipe is folded, vehicle seat, side arm, flexible handle, front fork stem and middle frame are fixed on together Folded state；Drive mechanism includes axis, two cranks, chain wheel, two pedals, prime minor sprocket, rear class sprocket wheel, flywheel, prime chain Bar and rear class chain, central axis are connected in Five-way tube, and two cranks are installed on the right song of the two ends of axis, chain wheel and two cranks Handle connects, and two pedals be connecteds with two cranks respectively, prime minor sprocket and rear class sprocket wheel be socketed on connection former piece and consequent to locking The win to the right of bolt goes out on end, and flywheel is connected to the right side of trailing wheel, and prime chain is wire-wrapped on chain wheel and prime minor sprocket, rear class Chain is wire-wrapped on rear class sprocket wheel and flywheel.

The beneficial effects of the utility model are：Ingenious cooperation of this utility model by aluminium extrusion so that whole vehicle frame All without electric welding, a kind of new trend of the manufacturing process of bicycle is represented；Handlebar of the present utility model is turned using flexible Form so that the folding of handlebar had reached both most simple, and reached most effective；Front fork stem is connected to the right side in the middle part of lower clamping piece In the upward and downward circular hole at end so that front fork has been accomplished ultimate attainment simple and can coordinate maximally effective folding；Of the present utility model Cooperation of the front tumbler using grooved part and the rotary part for being connected to lower clamping piece rear portion, include in rotary part plane bearing and Shock-absorbing polyurethane cylinder, makes front tumbler both simple and effectively and also with incabloc function；Vehicle frame adopts after-frame forward with Frame is folded, vehicle seat is folded with middle frame and side arm linkage, has reached the minimum and optimization of frame folding；Two length of rear sleeve rear end Shock-absorbing polyurethane block is installed in circular hole, with left back breeches pipe and right back breeches pipe front end vexed plug together after so that after-frame has shock-absorbing work( Energy；In the second two-tube set is mutual to perforation and pleated sheet cross-perforating right side win to locking on bolt end, connect prime Minor sprocket and rear class sprocket wheel so that this utility model after-frame is folded with middle frame and is achieved.

Description of the drawings：

Fig. 1 is this utility model structural representation；

Fig. 2 is the expanded schematic diagram of the flexible handle of this utility model；

Fig. 3 is the gathering schematic diagram of the flexible handle of this utility model；

Fig. 4 is the structural representation of this utility model front-axle beam and both sides piece；

Fig. 5 is this utility model folding process schematic diagram；

Fig. 6 is that this utility model folding finishes figure；

In figure：1 flexible handle, 2 front fork stems, 3 side arms, frame in 4,5 after-frames, 6 cars Seat, 71 front-wheels, 72 trailing wheels, 8 drive mechanisms；The handle 1 that wherein stretches also includes：11 left hand handles, 12 right handgrips, latch fitting on 13,14 times latch fittings, 15 handles；Middle frame 4 also includes：41 twin beams pipes, 42 first two-tube sets, 43 rear casings, 44 Five-way tubes, 45 first latch hook members；Vehicle seat 6 also includes：Vehicle seat 6 Also include：61 seat pipes, 62 vehicle seat folded pieces, 63 second latch hook members, 64 bars, 65 saddles.

Specific embodiment：

According to Fig. 1, Fig. 2 and Fig. 4, described flexible handle type portable bicycle, including flexible handle 1, front fork stem 2, Side arm 3, middle frame 4, after-frame 5, vehicle seat 6, front-wheel 71, trailing wheel 72 and drive mechanism system 8；

Described flexible handle 1 includes left hand 11, right handgrip 12, upper latch fitting 13, lower latch fitting 14 and handle 15, described Left hand is all to be formed as right-angle bending by the upper end of pipe 11 and described right handgrip 12, and the left hand is 11 and the right hand Outside below at 12 right-angle bendings is respectively provided with a screwed hole, the left hand is 11 and the screwed hole difference of the right handgrip 12 Corresponding to the bottom side of 13 upper clamping piece of upper latch fitting, with two bolts difference twist-on to the left hand straight to 11 and the right handgrip 12 At angular distortion in the screwed hole of lower outer, be connected to the left hand 11 and the right handgrip 12 bolt respectively be located at described The bottom side of 13 upper clamping piece of upper latch fitting, the left hand are respectively provided with a screwed hole the side of 11 and 12 lower end of the right handgrip, described Left hand is screwed into 11 and 12 lower end side screwed hole of the right handgrip after bolt, can be as described left hand 11 and the described right side Handle 12 spacing with what 14 lower clamping piece of lower latch fitting was slided up and down.

Described upper latch fitting 13 is made up of upper clamping piece, banking stop and clamping screw, and described upper clamping piece is an aluminium extruded type Blank, the left and right two ends of the upper clamping piece respectively have the circular hole of a upward and downward, on the circular hole of two upward and downwards of the upper clamping piece also Cracking for upward and downward is connected with, respectively there are the circular hole of a upward and downward, the upper clamping piece in the left and right that the upper clamping piece upward and downward cracks rearward The left side that tapping is cracked rearward into screwed hole, the upper clamping piece upward and downward in the circular hole of two upward and downward of left and right that upward and downward cracks rearward The bottom of the screwed hole of right two upward and downwards allows described banking stop to be connected to described by the banking stop described in two bolt twist-ons one The bottom side of upper clamping piece, and crack rearward positioned at the upper clamping piece upward and downward, described banking stop is two ends portion with holes Part, is connected to the banking stop of the upper clamping piece bottom side, and is connected to the left hand two on 11 and the right handgrip 12 Bolt coordinates, and spacing when 11 and described right handgrip 12 can be launched as described left hand, the centre of the upper clamping piece has One is cracked vertical longitudinal hole with the upper clamping piece upward and downward, and the rear end of the upper clamping piece longitudinal hole is connected with a counterbore, described on The stop nut of clamping screw described in is inlayed in the counterbore of folder, is tightened described clamping screw and can be tightened up upper clamping piece upward and downward Crack, upper clamping piece is locked left hand handle and right handgrip so that left hand handle and right handgrip are fixed and can not be rotated, described locking Bolt by bolt and screws handle and is formed by connecting, and described clamping screw also includes stop nut.

Described lower latch fitting 14 is made up of lower clamping piece and clamping screw, and described lower clamping piece is the blank of an aluminium extruded type, Respectively there is the circular hole of a upward and downward at the anterior left and right two ends of the lower clamping piece, on the circular hole of two anterior upward and downwards of the lower clamping piece also Cracking for upward and downward is connected with, the left end in the middle part of the lower clamping piece has the circular hole of a upward and downward, and left end is upper in the middle part of the lower clamping piece Lower corresponding with the pipe footpath close-fitting of the front fork stem 2 to circular hole, described front fork stem 2 is made up of pipe, cylinder and front axle, pipe Bottom pore in fill in cylinder, the bottom of pipe to and have a cross-perforating together with cylinder, front axle penetrate the bottom of pipe and In the cross-perforating of cylinder and win to the right, the upward and downward circular hole of left end and 2 pipe of the front fork stem in the middle part of the lower clamping piece Upper end close-fitting socket, the centre that there is the circular hole of a upward and downward, the lower clamping piece centre at the lower clamping piece rear portion has one with lower folder Part upward and downward cracks vertical longitudinal hole, and the rear end of the lower clamping piece longitudinal hole is connected with the stop nut of clamping screw described in, Described left hand penetrates 11 and described right handgrip 12 in the circular hole of described lower clamping piece or so two ends upward and downward, described locking Bolt is penetrated in the longitudinal hole of the lower clamping piece, and is screwed in stop nut, is tightened the clamping screw and can be tightened up lower clamping piece Described lower clamping piece is locked described left hand 11 and described right handgrip 12 so that described left hand by cracking for upward and downward 11 and described right handgrip 12 are fixed and can not be slided up and down.

Described handle 15 is a working of plastics, and two lower ends of the handle 15 are respectively connected with the circle of a upward and downward, the handle Corresponding for the external diameter of 11 and the right handgrip 12, the top of the handle 15 is aperture and the left hand of 15 two circle collar aperture The handle of one handle, two collar aperture of the handle 15 are socketed on the left hand respectively under 11 and 12 knee of the right handgrip Side, described handle 15 are located at the top of the upper clamping piece.

Described side arm 3 includes that rotary part, front-axle beam and both sides piece, described rotary part include front axle tube, two depths Ditch bearing, a plane bearing and there is a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore is respectively milled with places rotation zanjon bearing Counterbore, close-fitting is pressed in the upward and downward circular hole in the middle of the lower clamping piece rear portion front axle tube from bottom to top, and two zanjon bearings are inlayed respectively It is embedded in the counterbore of front axle tube upper and lower side, plane bearing is lining on the zanjon bearing of the front axle tube upper end, then by poly- for shock-absorbing ammonia Ester cylinder is put on plane bearing, there is a hole axial direction of shock-absorbing polyurethane cylinder, and by the endoporus of two zanjon bearings, plane bearing Axis hole and the hole of shock-absorbing polyurethane cylinder, corresponding to the upper and lower two sides of front-axle beam front end grooved mutual to perforation, with to lock Described tumbler is connected by bolt with the grooved of the front-axle beam, and described front-axle beam is the slice processing part of aluminium extruded type, described before The front end of beam respectively has a horizontal perforation, middle part to have reinforcement in grooved, the upper and lower of rear end, above the front-axle beam rear end in Between be provided with a grooved gap, the vertical phase of the cross-perforating above the grooved gap above the front-axle beam rear end and the front-axle beam rear end Hand over, respectively there is a circular hole corner of the front-axle beam reinforcement, and in the circular hole of the front-axle beam reinforcement corner tapping into screwed hole, The both sides up and down of the front-axle beam grooved are provided with mutual to perforation, and the both sides up and down of the front-axle beam grooved strike out fillet, side piece It is by the rectangular patch of plastic injection, the corner Ge Youyi holes of side piece rectangle, the hole of side piece rectangle corner and the front-axle beam The screwed hole of reinforcement corner is corresponding, and both sides piece is connected to the right and left of the front-axle beam by bolt.

Described middle frame 4 includes the 41, first two-tube set 42, rear casing 43 of twin beams pipe, Five-way tube 44, pleated sheet, the first lock Hook 45 and shock-absorbing polyurethane block, described twin beams pipe 41 are made up of two flat tubes of left and right, the front end close-fitting set of the twin beams pipe 41 It is connected in the two-tube set 42 of described first, the rear end close-fitting of the twin beams pipe 41 is socketed in described rear casing 43, described First two-tube set 42 is the slice processing parts of an aluminium extruded type, and two slotted holes are arranged at 42 tops of the first two-tube set, described first pair Two slotted holes of pipe box 42 are corresponding with the cast of two flat tube of left and right of the twin beams pipe 41, and the first two-tube set 42 is located at two Respectively there is a company side up and down between slotted hole, the grooved that Open Side Down arranged at the bottom of the first two-tube set 42, described first pair The both sides of Open Side Down the grooved of pipe box 42 are provided with mutual to perforation, the two sides of the first two-tube set 42 Open Side Down grooved Fillet is struck out, the described first two-tube left and right covered on the face for connecting side between 42 liang of slotted holes is provided with the hole of two upward and downwards, The first two-tube set 42 is mutual to being punched through being connected to locking bolt and rotate with horizontal perforation below the front-axle beam rear end.

Described rear casing 43 is the cutting workpiece of an aluminium extruded type, and two slotted holes, institute are arranged at the bottom of the rear casing 43 The cast for stating two slotted holes of rear casing 43 and two flat tube of left and right of the twin beams pipe 41 is corresponding, and the rear casing 43 is located at two The top for respectively having a company side, the rear casing 43 up and down between slotted hole has the grooved of opening upwards, the rear casing 43 to open The front-end and back-end of mouth grooved both sides upwards be provided with one mutual to perforation, between 43 liang of slotted holes of the rear casing on connect side Respectively be provided with the screwed hole of a upward and downward in front and back, between 43 liang of slotted holes of the rear casing on connect the left and right of side rearward end and be respectively provided with one Vertical hole, between 43 liang of slotted holes of the rear casing, to be respectively provided with one mutually vertical to wearing for the left and right of upper and lower two company side leading section Hole, it is horizontal that the rear casing 43 is provided with one positioned at the rear end that the laterally vertical leading section of two slotted holes is inconjunction with the twin beams pipe 41 Perforation, between 43 liang of slotted holes of the rear casing under connect the hole for being provided with several upward and downwards on the rear end face on side, the rear casing It is mutual to perforation, the upper and lower sides phase of 43 liang of slotted hole rear ends of the rear casing that the upper and lower sides of 43 liang of slotted hole rear ends are respectively provided with one Mutual to bore a hole each fix a pin, the side at 44 or so two ends of the Five-way tube be respectively provided with upward and downward mutual to wearing screw thread Hole, described 44 close-fitting of Five-way tube are penetrated in the cross-perforating in the horizontal upright front portion of 43 liang of slotted holes of the rear casing, and will The Five-way tube 44 or so two end side surfaces, two upward and downwards mutual to wearing screwed hole, corresponding to 43 liang of slotted holes of the rear casing it Between upper and lower two connect side leading section left and right two mutually vertical to perforation, with four bolts by between 43 liang of slotted holes of the rear casing Upper and lower two connect side leading section left and right two mutually vertical to perforation, with 44 or so two end side surface of the Five-way tube, two upward and downward phase Mutual tightens fixation to wearing screwed hole, and described pleated sheet is the sliced pieces of an aluminium extruded type, and there is a horizontal stroke rear end of the pleated sheet To perforation, the hole of several upward and downwards on the front end face of the pleated sheet, is provided with, the several upward and downwards of the front end face of the pleated sheet Hole, between 43 liang of slotted holes of the rear casing under connect side the several upward and downwards of rear end face hole corresponding, the pleated sheet leads to Cross the rear end face for connecting side under bolt and nut is connected between 43 liang of slotted holes of the rear casing.

The first described latch hook member 45 by latch hook and latch hook spring and is constituted, and latch hook is the sliced pieces of an aluminium extruded type, latch hook Middle part carries a horizontal collar aperture, and there is a hook-type rear end of latch hook, and latch hook front portion is provided with a vertical elongated hole, latch hook horizontal To perforation corresponding mutual with the rear end of 43 opening upwards grooved both sides of the rear casing of collar aperture, with to lock bolt will be described after The mutual of 43 grooved both sides rear end of pipe box is connected with the transverse holes of latch hook to perforation, and a bolt penetrates the vertical elongated hole of latch hook In, and penetrate in latch hook spring, then the screw thread of the rear upward and downward for connecting side is screwed between 43 liang of slotted holes of the rear casing Kong Zhong, the rectangle of latch hook 5 second two-tube set of after-frame described in energy hook lock in the presence of latch hook spring of first latch hook member 45 Hole, shock-absorbing polyurethane block described in two are filled in two slotted holes of 43 rear end of the rear casing, and shock-absorbing polyurethane described in two Block front end props up the pin positioned at 43 liang of slotted hole rear ends of the rear casing, two shock-absorbing polyurethane blocks and the left back breeches pipe of the after-frame Offset cooperation with two nylon plugs in the pore of right back breeches pipe front end, shock-absorbing effect can be played.

Described after-frame 5 is made up of left back breeches pipe, right back breeches pipe, the second two-tube set and heel brace, and left back breeches pipe is by flat tube system Into U-shaped gap is flattened and be provided with left back breeches pipe rear end, and right back breeches pipe is made up of flat tube and bending stamping, the flat tube of right back breeches pipe Rear end rushes flat to the flat pipe hole corresponding with the metal flat bar of bending stamping, and bending stamping is that a metal flat bar is struck out two is straight The double-bending of the zigzag at angle, and U-shaped gap is provided with bending stamping rear end, after bending stamping close-fitting fills in right back breeches pipe flat tube End is rushed in flat flat pipe hole, and with the reinforcing of two rivets, by bending stamping be fixed on right back breeches pipe flat tube rear end rush flat flat In pore, the front end close-fitting of left back breeches pipe and right back breeches pipe is socketed in the second two-tube set, left back breeches pipe and right back breeches pipe front end Pore in be respectively plugged with the vexed plug of a nylon, the shape and size of the second described two-tube set set 42 two-tube with described first is identical, The second described two-tube set is located at the centre in the upper even side face between two slotted holes and is provided with a rectangular opening, the second two-tube set Rectangular opening is the interlocking hole coordinated with 45 latch hook of the first latch hook member, and the second two-tube set is mutual to being punched through to lock The cross-perforating of bolt and 45 rear end of the pleated sheet is rotated and be connected, connect the described second two-tube set mutual to perforation with described The front axle of the cross-perforating of 45 rear end of pleated sheet, in the described second two-tube set is mutual to perforation wins to the right, and front axle exists The mutual win in perforation to the right being gone out on end of second two-tube set is socketed a bushing pipe, and heel brace is connected in the middle part of left back breeches pipe Left side.

Described vehicle seat 6 includes seat pipe 61, vehicle seat folded piece 62, the second latch hook member 63, seat bar 64, saddle 65 and folds determining Position card, in the pore of described 61 lower end of seat pipe, close-fitting fills in a thick-walled tube, 61 bottom leading flank of the seat pipe upper and lower The thick-walled tube that fills in related with trailing flank upper, middle and lower is respectively provided with a screwed hole, the upper end of the seat pipe 61 be provided with one vertical Crack, the upper end of the seat pipe 61 is socketed a pipe clamp, described seat bar 64 is upper bend pipe at a right angle, described seat bar In 64 pores for penetrating 61 upper end of the seat pipe, and cracking for 61 upper end of the seat pipe is tightened up with pipe clamp, by described seat bar 64 Fix with described seat pipe 61, described saddle 64 is installed on the front end of the seat bar 64.

Described vehicle seat folded piece 62 is connected part, connecting rod and U-shaped plug and is constituted by diapsid, and it is an aluminium extruded type that diapsid connects part Sliced pieces, diapsid connects the upper end of part has a slotted hole, lower end to have a circular hole, and diapsid connects part has one positioned at the vertical of long collar aperture Mutual to perforation, diapsid connects part the hole of a longitudinal direction above circular hole, and the longitudinal hole that diapsid connects part is stubborn by bolt It is connected on front side of 61 bottom of the seat pipe in lower screwed hole, diapsid connects the circular hole of part and passes through to locking bolt and the rear casing 43 What grooved both sides front end was mutual rotates connection to perforation, and connecting rod is made up of connecting rod bending part and two connecting rod lining rings, connecting rod bending part It is two leading sections of the front with the rectangle frame of opening, rectangle frame to be bent into by a metal round rod bending is formed still further below, connecting rod The two ends of the inside bending of rectangle frame are drilled with perforation, and connecting rod bending part is penetrated in the slotted hole that diapsid connects part, and makes connecting rod The rearward end of bending part connects the top of the slotted hole of part positioned at diapsid, and U-shaped plug fills in the lower section of the slotted hole of ring part, and position In the lower section of connecting rod bending part rearward end, U-shaped plug is a nylon plug, and the upper side of U-shaped plug has the bar footpath phase with connecting rod bending part Corresponding arc groove, U-shaped also have a longitudinal direction to bore a hole beyond the Great Wall, and longitudinal direction perforation and the diapsid of U-shaped plug connect part and hang down positioned at long collar aperture Corresponding to mutual perforation, U-shaped plug is positioned in the long collar aperture that diapsid connects part by screw, and diapsid is connected part Upper end and 61 bottom of the seat pipe on front side of in screwed hole fix, the two ends of the inside bending in the front end of connecting rod are penetrated before described In the horizontal perforation in the top of beam rear end, and in the grooved gap above the front-axle beam rear end win, by two connecting rod lining ring sets The front end for being connected to connecting rod is won on the two ends in grooved gap above the front-axle beam rear end, and hammers into connecting rod square with two pins Position in the perforation at the inside bending two ends of shape frame.

The second described latch hook member 63 is connected part, latch hook, latch hook spring and interlocking bolt and is constituted by grooved, and it is groove that grooved connects part The cutting off processing part of the aluminium extruded type of type, grooved connect the left and right sides of part grooved and are provided with one mutual to perforation, and grooved connects bottom before part Face is respectively provided with a hole up and down, grooved connect on front side of the holes up and down of the front bottom surface of part and 61 bottom of seat pipe under two Screwed hole is corresponding, and grooved is connected part and is connected with front side of 61 bottom of the seat pipe by two bolts, second latch hook member 63 The shape of latch hook is similar with the latch hook of first latch hook member 45, and the transverse holes of second latch hook member, 63 latch hook pass through to locking spiral shell Bolt and grooved connect that part both sides are mutual be connected to perforation, and interlocking bolt is the bolt of a cup head, described in interlocking bolt is fastened to Connect between 43 liang of slotted holes of rear casing side front upper and lower to screwed hole in, a bolt penetrates 63 latch hook of the second latch hook member Elongated hole in, and penetrate in latch hook spring, then be screwed on front side of 61 bottom of the seat pipe in upper screwed hole, second lock The latch hook of hook 63 can be with the cup head interlocking of interlocking bolt by the effect of interlocking spring, and described folding locator card is by U-shaped In flakes, two connecting holes are arranged at U-shaped nylon card bottom for nylon card and metal, and respectively there is a hole anterior left and right to metal in flakes, metal in flakes after Respectively there is a hole in portion or so, and the holes at metal rear portion in flakes is connected with two connecting holes of U-shaped nylon card bottom by bolt and nut, gold Category holes anterior in flakes by bolt and nut, between 42 liang of slotted holes of set two-tube with described first on connect left and right on the face of side The hole connection of two upward and downwards.

Described front-wheel 71 is 8 inches of wheel, and described front-wheel 71 is installed on front axle, and described trailing wheel 72 is 8 inches Wheel, described trailing wheel 72 are installed on the rear end of left back breeches pipe and right back breeches pipe, described drive mechanism 8 include axis, two cranks, Chain wheel, two pedals, prime minor sprocket, rear class sprocket wheel, flywheel, prime chain and rear class chain, described axis are matched somebody with somebody by axis Part is connected in described Five-way tube 44, and the crank described in two is connected to the two ends of the axis, and described chain wheel is connected to two On the right crank of the crank, the pedal described in two is connected with the crank described in two respectively, described prime minor sprocket and described The connection of rear class sprocket coaxiality cylinder, connect the beam barrel of the prime minor sprocket and the rear class sprocket wheel, before left end connection is described Level minor sprocket, the described described rear class sprocket wheel of right-hand member connection, and a bearing is respectively inlayed at beam barrel two ends, and beam barrel is inconjunction with described Prime minor sprocket and described rear class sprocket wheel, be socketed on the connection second two-tube set mutual to perforation and the pleated sheet The front axle of the cross-perforating of rear end, the win in the described second two-tube set is mutual to perforation to the right go out on end, are twisted with bolt It is connected in the screwed hole of front axle and positions, described flywheel is connected to the right side of the trailing wheel 72, and described prime chain is wire-wrapped in On described prime sprocket wheel and described prime minor sprocket, described rear class chain is wire-wrapped in described rear class sprocket wheel and described On flywheel.

Claims

1. a kind of flexible handle type portable bicycle, including flexible handle, front fork stem, side arm, middle frame, after-frame, vehicle seat, front Wheel, trailing wheel and drive mechanism, is characterized in that：Flexible handle includes left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle, left hand Being to be formed as right-angle bending by the upper end of pipe with right handgrip, left hand with right handgrip right-angle bending at below outside be provided with Screwed hole, upper latch fitting are made up of upper clamping piece, banking stop and clamping screw, and respectively there is the circle of a upward and downward at the left and right two ends of upper clamping piece Hole, is also connected with cracking for upward and downward, the left and right Ge Kai that upper clamping piece upward and downward cracks rearward on the circular hole of two upward and downwards of upper clamping piece The bottom for having the screwed hole of a upward and downward, the screwed hole of two upward and downward of left and right that upper clamping piece upward and downward cracks rearward passes through two bolts One banking stop of twist-on, allows banking stop to be connected to the bottom side of upper clamping piece, the centre of upper clamping piece have one crack with upper clamping piece upward and downward vertical Straight longitudinal hole, the rear end of upper clamping piece longitudinal hole connect the stop nut of a clamping screw, and left hand handle and right handgrip penetrate folder In the circular hole of part or so two ends upward and downward, and by left hand with right handgrip right-angle bending at below screwed hole correspond to upper clamping piece Bottom side, with two bolts be screwed into respectively left hand with right handgrip right-angle bending at below screwed hole in, by left hand handle and the right side Handle with upper clamping piece make rotate spacing, clamping screw is penetrated in the longitudinal hole of upper clamping piece, and is screwed in stop nut, is tightened Clamping screw can tighten up cracking for upper clamping piece upward and downward；Lower latch fitting is made up of lower clamping piece and clamping screw, the anterior left side of lower clamping piece Respectively there is the circular hole of a upward and downward at right two ends, are connected with cracking for upward and downward, lower clamping piece on the circular hole of two anterior upward and downwards of lower clamping piece The left end at middle part has the circular hole of a upward and downward, the centre at lower clamping piece rear portion to have the circular hole of a upward and downward, the anterior centre of lower clamping piece Have one to crack vertical longitudinal hole with lower clamping piece front portion upward and downward, the rear end of lower clamping piece longitudinal hole connects the locking of a clamping screw Nut, in the middle part of lower clamping piece, the circular hole of left end upward and downward is connected with the upper end of front fork stem, and front fork stem is by pipe, cylinder and front axle structure Into, fill in cylinder in the bottom pore of pipe, the bottom of pipe to and have a cross-perforating, front axle to penetrate pipe together with cylinder In the cross-perforating of bottom and cylinder, and win to the right, left hand is the circle for penetrating lower clamping piece or so two ends upward and downward with right handgrip Kong Zhong, clamping screw are penetrated in the longitudinal hole of lower clamping piece, and are screwed in stop nut, are tightened clamping screw and can be tightened up lower clamping piece Cracking for upward and downward, shakes hands to be connected to left hand the top with right handgrip, and the top positioned at upper clamping piece；Side arm is by rotary part Constitute with front-axle beam, rotary part is installed on the upward and downward circular hole in the middle of lower clamping piece rear portion, the front end of front-axle beam is in grooved, front-axle beam groove The both sides up and down of type have mutual to perforation, and the upper and lower of front-axle beam rear end respectively has a horizontal perforation, mutual right of front-axle beam grooved It is punched through to locking bolt connection rotary part；Middle frame include twin beams pipe, the first two-tube set, rear casing, Five-way tube, pleated sheet, First latch hook member and two shock-absorbing polyurethane blocks, twin beams pipe are made up of two flat tubes of left and right, and the front end close-fitting of twin beams pipe is socketed first pair Pipe box, the first two-tube set top have the cast of two flat tube of left and right of two slotted holes, two slotted holes of the first two-tube set and twin beams pipe Corresponding, the grooved that Open Side Down arranged at the bottom of the first two-tube set, and the both sides of the first two-tube set Open Side Down grooved are provided with mutually To perforation, the first two-tube set is mutual to being punched through being connected with horizontal perforation rotation below front-axle beam rear end to locking bolt, Two slotted holes are arranged at the bottom of rear casing, and two slotted holes of rear casing are corresponding with the cast of two flat tube of left and right of twin beams pipe, manage afterwards The grooved of opening upwards arranged at the top of set, and it is mutual to wearing that the front-end and back-end of rear casing opening upwards grooved both sides are respectively provided with one Hole, rear casing are inconjunction with twin beams pipe positioned at the laterally vertical leading section of two slotted holes and are provided with a horizontal perforation, and rear casing two is grown Five-way tube is socketed in the cross-perforating in the horizontal upright front portion of circular hole, the rear end of pleated sheet has a cross-perforating, pleated sheet to pass through Bolt and nut is connected to the back lower place of rear casing, with to locking bolt by mutual for rear casing grooved both sides rear end to perforation and first The latch hook connection of latch hook member, the first latch hook member is made up of latch hook and latch hook spring, and there is an elongated hole latch hook front portion, and a bolt penetrates the In the elongated hole of one latch hook member, and penetrate in latch hook spring, then be screwed on rear casing in the screwed hole of the rear of bottom land, the Second two-tube set of one latch hook member energy hook lock after-frame in the presence of latch hook spring, after two shock-absorbing polyurethane blocks are fixed on rear casing In two slotted holes at end, two shock-absorbing polyurethane blocks are offseted with two nylon plugs in the left back breeches pipe of after-frame and right back breeches pipe front end pore Coordinate and can play shock-absorbing effect；After-frame is made up of left back breeches pipe, right back breeches pipe, the second two-tube set and heel brace, left back breeches pipe and the right side The front end close-fitting of back breeches pipe is socketed the second two-tube set, and the shape and size of the second two-tube set are identical with the first two-tube set, second pair Pipe box is mutual to be connected to the cross-perforating rotation being punched through to locking bolt and pleated sheet rear end, and heel brace is connected to left back breeches pipe The left side at middle part；Vehicle seat includes seat pipe, vehicle seat folded piece, the second latch hook member, seat bar, saddle and folds locator card, and vehicle seat is folded Part connects part, connecting rod and U-shaped plug by diapsid, and diapsid connects the front side that part is fastened to seat pipe lower end, diapsid connect the circular hole of part with What rear casing grooved both sides front end was mutual rotates connection to perforation, and the slotted hole that the rearward end of connecting rod connects part with diapsid is connected, U Type plug is filled in the slotted hole of ring part, and the lower section positioned at rod rear end portion, two front ends of connecting rod and the top of front-axle beam rear end Horizontal perforation connection, the grooved for being connected with the second latch hook member on front side of seat pipe lower end connect part, the latch hook and groove of the second latch hook member Type connect part both sides mutual to perforation connection, the second latch hook member connects part, latch hook, latch hook spring and interlocking bolt and constituted by grooved, Interlocking bolt is fastened on rear casing in the screwed hole of the front of bottom land, the shape of the latch hook of the second latch hook member and the first latch hook The latch hook of part is similar, and a bolt is penetrated in the elongated hole of the second latch hook member, and is penetrated in latch hook spring, then is screwed in seat pipe, The latch hook of the second latch hook member can be connected in the pore at the top of seat pipe with the cup head interlocking of interlocking bolt by the effect of interlocking spring Connect, saddle is installed on seat bar, fold locator card and be connected to the first two-tube set back upper place；Front-wheel is installed on front axle, and trailing wheel is installed on The rear end of after-frame, drive mechanism include axis, two cranks, chain wheel, two pedals, prime minor sprocket, rear class sprocket wheel, flywheel, prime Chain and rear class chain, central axis are connected in Five-way tube, and two cranks are installed on the right side at the two ends of axis, chain wheel and two cranks Crank connects, and two pedals be connecteds with two cranks respectively, and prime minor sprocket and rear class sprocket wheel are socketed on and connect the right of former piece and consequent The win to the right of lock bolt goes out on end, and flywheel is connected to the right side of trailing wheel, and prime chain is wire-wrapped on chain wheel and prime minor sprocket, after Level chain is wire-wrapped on rear class sprocket wheel and flywheel.

2. flexible handle type portable bicycle according to claim 1, is characterized in that：The left hand handle and the right hand Screwed hole correspond respectively to the bottom side of the upper latch fitting upper clamping piece, the left hand handle and the right handgrip lower end side screw thread After hole is screwed into bolt, can be as described left hand the limit slided up and down with the lower latch fitting lower clamping piece with described right handgrip Position, be connected to the banking stop of the upper clamping piece bottom side, be connected to the left hand with the right handgrip on two bolts Coordinate, can be as described left hand spacing when launching with described right handgrip, the rear end of the upper clamping piece longitudinal hole is connected with One counterbore, inlays the stop nut of clamping screw described in the counterbore of the upper clamping piece, described clamping screw by bolt and Screw handle to be formed by connecting, described clamping screw also includes stop nut.

3. flexible handle type portable bicycle according to claim 1, is characterized in that：Left end in the middle part of the lower clamping piece Upward and downward circular hole is corresponding with the pipe footpath close-fitting of the front fork stem, in the middle part of the lower clamping piece upward and downward circular hole of left end with described before The upper end close-fitting socket of fork arm pipe, described handle is a working of plastics, and two lower ends of the handle are respectively connected with a upward and downward Circle, aperture and the left hand of two circle collar aperture of the handle corresponding with the external diameter of the right handgrip, the handle upper Portion is the handle of a handle.

4. flexible handle type portable bicycle according to claim 1, is characterized in that：Described rotary part is included Front axle tube, two zanjon bearings, a plane bearing and there is a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore is respectively milled with placement rotation The counterbore of zanjon bearing, close-fitting is pressed in the upward and downward circular hole in the middle of the lower clamping piece rear portion front axle tube from bottom to top, two zanjons Bearing is embedded in the counterbore of front axle tube upper and lower side respectively, and plane bearing is lining on the zanjon bearing of the front axle tube upper end, then Shock-absorbing polyurethane cylinder is put on plane bearing, there is a hole axial direction of shock-absorbing polyurethane cylinder, and by two zanjon bearings The hole in hole, the axis hole of plane bearing and shock-absorbing polyurethane cylinder, corresponding to mutual right in the upper and lower two sides of front-axle beam front end grooved Perforation, with to lock bolt described tumbler is connected with the grooved of the front-axle beam.

5. flexible handle type portable bicycle according to claim 1, is characterized in that：Described front-axle beam is aluminium extruded type Slice processing part, the front end of the front-axle beam is in grooved, the upper and lower of rear end respectively has a horizontal perforation, middle part to have reinforcement, institute State the centre above front-axle beam rear end and be provided with a grooved gap, on the grooved gap above the front-axle beam rear end and the front-axle beam rear end The cross-perforating of side is vertical intersecting, and respectively there is a circular hole corner of the front-axle beam reinforcement, and in the front-axle beam reinforcement corner In circular hole, tapping is into screwed hole, the both sides up and down of the front-axle beam grooved be provided with mutual to perforation, the front-axle beam grooved upper and lower Both sides strike out fillet, and side piece is by the rectangular patch of plastic injection, the corner Ge Youyi holes of side piece rectangle, side piece rectangle The hole of corner is corresponding with the screwed hole of the front-axle beam reinforcement corner, and both sides piece is connected to the front-axle beam by bolt The right and left.

6. flexible handle type portable bicycle according to claim 1, is characterized in that：The first two-tube set is located at two Respectively there is a company side up and down between slotted hole, the two sides of the first two-tube set Open Side Down grooved strike out fillet, described Rear casing be located at two slotted holes between respectively have a company side up and down, between two slotted hole of the rear casing on connect side before and after respectively open Have the screwed hole of a upward and downward, between two slotted hole of the rear casing on connect the left and right of side rearward end and be respectively provided with a vertical hole, institute Stating the left and right of upper and lower two company side leading section between two slotted hole of rear casing, to be respectively provided with one mutually vertical to perforation, the rear casing The hole of several upward and downwards, the upper and lower sides of two slotted hole rear end of the rear casing are provided with the rear end face for connecting side under between two slotted holes Respectively it is provided with one mutual to perforation, what the upper and lower sides of two slotted hole rear end of the rear casing were mutual each fixes a pin to boring a hole.

7. flexible handle type portable bicycle according to claim 1, is characterized in that：The Five-way tube or so two ends Side be respectively provided with upward and downward mutual to wearing screwed hole, described Five-way tube close-fitting penetrates two slotted hole of the rear casing and laterally hangs down In the cross-perforating of straight leading section, and by mutual for described Five-way tube or so two end side surfaces, two upward and downwards to wearing screwed hole, corresponding Between two slotted hole of the rear casing, upper and lower two to connect the left and right two of side leading section mutually vertical to perforation, with four bolts by institute Stating between two slotted hole of rear casing upper and lower two, to connect the left and right two of side leading section mutually vertical to perforation, with the Five-way tube or so What two end side surfaces, two upward and downward was mutual tightens fixation to wearing screwed hole, and described pleated sheet is the sliced pieces of an aluminium extruded type, described It is provided with the hole of several upward and downwards on the front end face of pleated sheet, the hole of the several upward and downwards of the front end face of the pleated sheet, after described The hole for connecting the several upward and downwards of rear end face on side under between two slotted hole of pipe box is corresponding.

8. flexible handle type portable bicycle according to claim 1, is characterized in that：Left back breeches pipe is made up of flat tube, U-shaped gap is flattened and be provided with left back breeches pipe rear end, and right back breeches pipe is made up of flat tube and bending stamping, the flat tube rear end of right back breeches pipe Rush flat to the flat pipe hole corresponding with the metal flat bar of bending stamping, bending stamping be a metal flat bar is struck out birectangular The double-bending of zigzag, and U-shaped gap is provided with bending stamping rear end, bending stamping close-fitting fills in right back breeches pipe flat tube rear end punching In flat flat pipe hole, and reinforced with two rivets, bending stamping is fixed on right back breeches pipe flat tube rear end and rushes flat flat pipe hole In, the second described two-tube set is located at the centre in the upper even side face between two slotted holes and is provided with a rectangular opening, and described second is two-tube The rectangular opening of set is the interlocking hole coordinated with the first latch hook member latch hook.

9. flexible handle type portable bicycle according to claim 1, is characterized in that：The pore of described seat pipe lower end Middle close-fitting fills in a thick-walled tube, the related heavy wall circle that fills in of the upper and lower and trailing flank upper, middle and lower of seat pipe bottom leading flank Pipe is respectively provided with a screwed hole, the upper end of the seat pipe be provided with one vertical crack, the upper end of the seat pipe is socketed a pipe clamp, institute The seat bar that states is upper bend pipe at a right angle, and diapsid connects the sliced pieces that part is an aluminium extruded type, and diapsid connects the upper end of part There are a slotted hole, lower end to have a circular hole, diapsid connects part to be had one mutual to perforation positioned at the vertical of long collar aperture, and diapsid connects part Being located above circular hole has the hole of a longitudinal direction, and diapsid connects under the longitudinal hole of part is fastened on front side of the seat pipe bottom by bolt In screwed hole.

10. flexible handle type portable bicycle according to claim 1, is characterized in that：Connecting rod bending part is by a gold medal Category round bar be bent into front with opening rectangle frame, bending is formed still further below for two leading sections of rectangle frame, connecting rod rectangle frame to The two ends of interior bending are drilled with perforation, and connecting rod bending part is penetrated in the slotted hole that diapsid connects part, after making connecting rod bending part End connects the top of the slotted hole of part positioned at diapsid, and during diapsid is connected on front side of the upper end of part and the seat pipe bottom Screwed hole is fixed, and the two ends of the inside bending in the front end of connecting rod are penetrated in the horizontal perforation in the top of the front-axle beam rear end, and Win in grooved gap above the front-axle beam rear end, the front end that two connecting rod lining rings are socketed on connecting rod is located at the front-axle beam rear end Win on the two ends in the grooved gap of top, and positioning in the perforation at the inside bending two ends of connecting rod rectangle frame is hammered into two pins, By U-shaped nylon card and metal in flakes, the holes at metal rear portion in flakes is by bolt and nut and U-shaped nylon for described folding locator card The two connecting holes connection of card bottom, metal holes anterior in flakes is by bolt and nut, two slotted holes of set two-tube with described first Between on connect left and right on the face of side two upward and downwards hole connection.