CN206446712U - Quick stretching handle folds Shockproof type three-wheel scooter - Google Patents

Abstract

A kind of quick stretching handle folds Shockproof type three-wheel scooter, including quick stretching handle, front fork stem, side arm, folding connecting rod, vehicle body, front-wheel, hind axle, left rear wheel, off hind wheel and drive mechanism, quick stretching handle is by left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle are formed by connecting, side arm is by preceding even part, rotary part, after connect part and groove profile connects part and is formed by connecting, groove profile connects part and locating shaft connection, the front-end and back-end of folding connecting rod are connected with rear even part and vehicle body main part respectively, front bar and rear bar the energy mutually interlocking of folding connecting rod, vehicle body is by vehicle body main part, fore bearing, trim ring, bearing after two, bearing block, locating shaft, shock resistance block, revolver is pitched, right wheel is pitched, shock-absorbing catch and rear board are formed by connecting, front-wheel is installed on front axle, hind axle is installed on a left side, the rear end of right wheel fork, left rear wheel and off hind wheel are connected to the two ends of hind axle, drive mechanism includes treadle part, step, crankshaft toothed wheel group, backgear group, flywheel and chain.

Description

Quick stretching handle folds Shockproof type three-wheel scooter

Technical field

The utility model is related to a kind of three-wheeled collapsible scooter, and more particularly to a kind of quick stretching handle folds Shockproof type three Take turns scooter.

Background technology

There is folding scooter in the market, due to the reason such as structure and construction, very little can't be reached after folding, even It is small to the degree that can be put into knapsack.

The content of the invention

The purpose of this utility model is to provide for a kind of handlebar in the new type foldable mode of quick stretching handle type, after having folded Can be put into knapsack --- quick stretching handle folds Shockproof type three-wheel scooter.The purpose of this utility model is realized in 's；Quick stretching handle folds Shockproof type three-wheel scooter, including quick stretching handle, front fork, side arm, folding connecting rod, vehicle body, preceding Wheel, hind axle, left rear wheel, off hind wheel and drive mechanism, it is characterized in that：Quick stretching handle includes left hand handle, right handgrip, locked Part, lower latch fitting and handle, left hand being to be formed by the upper end of pipe as right-angle bending with right handgrip, left hand and right handgrip right angle The lower section in knee is respectively provided with screwed hole, and the side with right handgrip bottom is respectively provided with screwed hole by left hand, and upper latch fitting is by upper clamping piece Constituted with upper Quick Release, respectively there is the circular hole that cracks of a upward and downward left and right ends of upper clamping piece, and crack circular hole for upper clamping piece left and right ends Crack towards front, there is a left lug forward in the crack left side of cracking of circular hole of upper clamping piece left end, upper clamping piece right-hand member cracks circular hole Right side of cracking have a right lug forward, have a projection forward in the middle part of upper clamping piece, on left lug, projection and the right side of upper clamping piece There is a mutual cross-perforating between lug, upper Quick Release is installed on the left lug, projection and the mutual transverse direction of right lug of upper clamping piece In perforation, left hand being penetrated with right handgrip in the circular hole that cracks of upper clamping piece left and right ends upward and downward, and by left hand and right handgrip Screwed hole below at right-angle bending corresponds to the bottom side of upper clamping piece, is screwed into left hand handle and right handgrip right angle respectively with two bolts In screwed hole below knee, by left hand with right handgrip and upper clamping piece make to rotate it is spacing, upper Quick Release can tighten up upper clamping piece The circular hole that cracks of crack circular hole and the right-hand member of left end, the left hand handle and right handgrip in upper clamping piece are fixed；Lower latch fitting is by lower clamping piece Constituted with lower Quick Release, the front portion on the lower clamping piece left side respectively has with the front portion on the right before the circular hole that cracks of a upward and downward, the lower clamping piece left side Portion cracks the cracking towards front of circular hole, and the anterior circular hole that cracks cracks towards front on the right of lower clamping piece, and the lower clamping piece left side is anterior There is a left lug forward in the crack left side of cracking of circular hole, and the right side of cracking of the anterior circular hole that cracks has one forward on the right of lower clamping piece There is a projection forward right lug, the anterior centre of lower clamping piece, between the left lug, projection and right lug of lower clamping piece, there is one Mutual cross-perforating, the rear portion on the lower clamping piece left side has the rear portion on the right of the circular hole of a upward and downward, lower clamping piece to have a upward and downward Circular hole, the circular hole of lower clamping piece left side rear portion upward and downward and the circular hole of the right rear portion upward and downward are connected with front fork, left hand handle and the right hand Penetrating in anterior and the anterior upward and downward in the right the circular hole that cracks in the lower clamping piece left side, left hand handle and the right hand are screwed into respectively with two bolts In the screwed hole of bottom, lower Quick Release is installed in the left lug of lower clamping piece, projection and the mutual cross-perforating of right lug, lower fast Tear the circular hole that cracks of crack circular hole and the right-hand member that can tighten up lower clamping piece left end open, the left hand handle and right handgrip in lower clamping piece fixed, Handle is connected to left hand the top with right handgrip, and positioned at the top of upper clamping piece；Side arm by it is preceding even part, rotary part, after connect Part and groove profile connect part composition, and the preceding amplexis hole of preceding even part is fixedly connected in the middle part of front fork, and preceding even part is the cutting off processing of aluminium extruded type Part, preceding even the front and rear of part respectively has amplexis hole, rotary part to connect before being installed on the rear amplexis hole of part, after to connect part be cutting for aluminium extruded type Piece workpiece, after to connect the front end of part be in groove profile, after connect the both sides up and down of part groove profile and have mutual to perforation, after connect the back upper place of part Have a transverse holes, after connect part back lower place end in rod, after connect part and connect a groove profile in the rear end of rod and connect part, groove profile connects part rear end The left and right sides have a mutual cross-perforating, after connect part groove profile it is mutual to being punched through to lock bolt connection rotary part； Folding connecting rod includes front bar, rear bar, sliding lock, little spring and button-headed bolt, before front bar is the groove profile part that Open Side Down, front bar The both sides of end and rear end are respectively laterally mutual to perforation with one, and there is the screwed hole of a upward and downward at the rear portion of front bar Cao's top surface, preceding Twist-on button-headed bolt in the screwed hole of bar upward and downward, rear bar is the groove profile part that Open Side Down, the front portion of rear bar and the two of rear end Side is respectively laterally mutual to perforation with one, and the front end of rear bar groove top surface, which has, installs sliding lock and small in an elongated hole, the elongated hole of rear bar Spring, the transverse direction of front bar front end is mutual to be connected to being punched through rotating the transverse holes that lock bolt connects part back upper place with after, preceding To perforation rotate mutual to lock bolt and rear bar front cross that be punched through that the transverse direction of rod rear end is mutual is connected, before being fastened to The button-headed bolt of bar can be installed in the sliding lock interlocking in rear bar；Vehicle body after vehicle body main part, fore bearing, trim ring, two bearing, Bearing block, locating shaft, shock resistance block, revolver fork, right wheel fork, shock-absorbing catch and constituted with rear board, the left side in the middle part of vehicle body main part Counterbore before having first, vehicle body main part first before counterbore connect to the right in through hole, the middle through hole of vehicle body main part connects to the right second Counterbore connects to the right the after counterbore, vehicle body main part first behind the back lower place of counterbore coherent first before preceding counterbore, vehicle body main part first There are a transverse holes through hole after counterbore is connected to the right after counterbore after two, vehicle body main part second, the front end of vehicle body main part, vehicle body main part There are a transverse holes top, and the transverse holes of vehicle body main part front end are positioning shaft hole, and there are a horizontal perforation, vehicle body master in the rear portion of vehicle body main part Part rear end lower section connection shock resistance block, vehicle body main part second before counterbore inlay fore bearing, vehicle body main part second is placed on trim ring The right side of preceding counterbore is fixed, and fore bearing is fixed on before the second of vehicle body main part in counterbore, vehicle body main part second after counterbore inlay Bearing after inlaying one in bearing after embedding one, bearing block, bearing base rear end has the hole corresponding with vehicle body main part rear portion horizontal perforation, car The cross-perforating at body main part rear portion to lock bolt connection revolver by being pitched, bearing block and right wheel are pitched, and revolver fork and right wheel fork are all The wheel fork of rear end embedded bearing, shock-absorbing catch is connected between revolver fork and right wheel fork, and locating shaft penetrates groove profile, and to connect part rear end mutual Cross-perforating in, and close-fitting press-in vehicle body main part positioning shaft hole in, rear rod rear end laterally it is mutual to be punched through to lock Bolt is rotated with the transverse holes above vehicle body main part and is connected, and the both ends of hind axle are penetrated in the rear end that revolver is pitched and right wheel is pitched In brearing bore, left rear wheel and off hind wheel are connected to the left and right ends of hind axle, and rear board is bolted to revolver The top that fork and right wheel are pitched, front-wheel is installed on front fork；Drive mechanism include treadle part, step, crankshaft toothed wheel group, backgear group, Flywheel and chain, crankshaft toothed wheel group are made up of bent axle, prime gear and two crankshaft bearings, and bent axle is the circle of two right-angle bending Steel and a disk are welded, and prime gear is a nylon gear, and the right flank of prime gear has one to correspond to fore bearing endoporus Boss, have the groove corresponding to bent axle round steel on the boss of prime gear, the boss of prime gear is penetrated in front axle from left to right In the endoporus held, the left head of bent axle is penetrated in the axis hole of prime gear to the left, is coordinated with bolt and nut by prime gear and song Axle is fixed, then two crankshaft bearings are socketed on to two of bent axle, and rear class gear train is made up of rear class gear, rear axle and sprocket wheel, after Level gear is fixedly connected on the left part of rear axle, and the right part of rear axle is penetrated in the rear axle for being embedded in counterbore after vehicle body main part second Hold in endoporus, the left end of rear axle is penetrated in the rear brearing bore in bearing block, and sprocket wheel is fixedly connected on the right head of rear axle, flywheel The position to the right in the middle part of hind axle is installed on, chain is wire-wrapped in sprocket wheel and flywheel, and treadle part is the slice processing by Al squeezing material There is the pore corresponding with locating shaft part, the front end of treadle part, and there is slotted hole the anterior lower section of treadle part, and the rear end of treadle part has With the screwed hole of step twist-on, the pore of two treadle part front ends rotates the two for being socketed on locating shaft, the slotted hole of two treadle parts It is slidably socketed on two crankshaft bearings of crankshaft toothed wheel group, two steps are fastened in two screwed holes of two treadle part rear ends；After dial Sliding lock, vehicle body is folded up, and vehicle body is drawn in front fork stem, in addition the folding of quick stretching handle, reaches quick perfect folding Effect.

The beneficial effects of the utility model are：The ingenious cooperation that the utility model passes through profile piece and stamping parts so that whole Individual vehicle frame there is no electric welding, represent a kind of new trend of the manufacturing process of three-wheel scooter；It is of the present utility model Handlebar uses the form of quick stretching handle so that the folding of handlebar reaches both most simply, and reach most effective；Front fork stem is connected In the upward and downward circular hole at the left back end of lower clamping piece, the upward and downward circular hole of preceding even part one end is fixedly connected on front fork, and preceding even part is another The upward and downward circular hole connection rotary part of one end, after connect the front end of part again by being connected to lock bolt with rotary part, after connect part The groove profile of rear end connects the both ends that part is rotationally connected with locating shaft, adds and connects the front bar of part back upper place after being connected to and be connected to car Rear bar above body main part, the four-bar linkage structure constituted allows vehicle body to fold effectively and quick；The lower section of vehicle body main part rear end Shock resistance block is connected, being connected with shock-absorbing catch between revolver fork and right wheel fork is engaged, and can reach effective shock-proof effect.

Brief description of the drawings：

Fig. 1 is the utility model structural representation；

Fig. 2 is the expanded schematic diagram of the quick stretching handle of the utility model；

Fig. 3 is the gathering schematic diagram of the quick stretching handle of the utility model；

Fig. 4 is to connect part and groove profile connects the organigram of part after the utility model；

Fig. 5 is the organigram of the utility model vehicle body main part；

Fig. 6 is the structural representation of the utility model treadle part；

Fig. 7 is the utility model folding process schematic diagram；

Fig. 8 is that the utility model folding finishes figure；

In figure：1 --- quick stretching handle, 2 --- front fork, 3 --- side arm, 4 --- folding connecting rod, 5 --- vehicle body, 6 --- front-wheel, 71 --- hind axle, 72 --- left rear wheel, 73 --- off hind wheel, 8 --- drive mechanism；Wherein quick stretching handle 1 also includes：The upper latch fitting of 11 --- left hand handle, 12 --- right handgrips, 13 ---, 14 --- lower latch fitting, 15 --- handles.

Embodiment：

According to Fig. 1, described quick stretching handle folds Shockproof type three-wheel scooter, including quick stretching handle 1, front fork 2, preceding Frame 3, folding connecting rod 4, vehicle body 5, front-wheel 6, hind axle 71, left rear wheel 72, off hind wheel 73 and drive mechanism 8；

Described quick stretching handle 1 includes left hand 11, right handgrip 12, upper latch fitting 13, lower latch fitting 14 and handle 15, described Left hand 11 and described right handgrip 12 be all to be formed by the upper end of pipe as right-angle bending, the left hand is 11 and the right side Side below at 12 right-angle bendings is respectively provided with a screwed hole by hand, and the left hand is 11 and the side of the bottom of the right handgrip 12 Respectively it is provided with a screwed hole.

Described upper latch fitting 13 is made up of upper clamping piece and upper Quick Release, and described upper clamping piece is the blank of an aluminium extruded type, Can be that aluminium forges part or aluminium diecasting, respectively there are the circular hole that cracks of a upward and downward, the upper folder in the left and right ends of the upper clamping piece Part left and right ends are cracked the cracking towards front of circular hole, and there is a left side forward in the crack left side of cracking of circular hole of the upper clamping piece left end Lug, the left side of the left lug of upper clamping piece is in arc concave, and the crack right side of cracking of circular hole of the upper clamping piece right-hand member has one forward Right lug, have a projection forward, left lug, the projection of the upper clamping piece and the institute of the upper clamping piece in the middle part of the upper clamping piece Between the right lug for stating upper clamping piece, a mutual cross-perforating is provided with, the postmedian of the upper clamping piece bottom surface has one downward prominent Go out, the cross-perforating between the right lug of the left lug of the upper clamping piece, the projection of the upper clamping piece and the upper clamping piece is used for Described upper Quick Release is installed, described upper Quick Release include fast dismounting handle, circle hook bolt, arc spacer, two Quick Release springs, two nuts and C type fasteners, c type fasteners are made up of nylon, and there is the opening of a c shapes front end of c type fasteners, and there is connection the rear end of c type fasteners Hole, c type fasteners are bolted to the front of the upper clamping piece projection, and fast dismounting handle is one of a trigger piece and is connected with Have inclined on mutual eccentric orfice, the disk of fast dismounting handle two on the part of two disks arranged side by side, the disk arranged side by side of fast dismounting handle two Collar aperture rotation of the heart hole by rivet with enclosing hook bolt is connected, and arc spacer is the pad that nylon is made, the arc of arc spacer Corresponding with the arc concave on the left of the left lug of the upper clamping piece, circle hook bolt penetrates arc spacer, the upper clamping piece left lug In Kong Zhong, a Quick Release spring, in the hole of the upper clamping piece projection, another Quick Release spring neutralize the hole of the right lug of upper clamping piece In, by two nuts to twisting positioning, switching fast dismounting handle can tighten up the hole of cracking of the upper clamping piece left and right ends, by described upper folder The hole of cracking of part left and right ends, tighten up positioned at the upper clamping piece left end crack hole in the left hand 11 and on described Folder right-hand member is cracked the right handgrip 12 in hole, and the fast dismounting handle after interlocking is caught in the c shape openings of c type fasteners.

Described left hand penetrates 11 and described right handgrip in the collar aperture of the left and right ends in described handle 15, institute The handle 15 stated is a working of plastics, and the lower end of left and right two of the handle 15 is respectively connected with the collar aperture of a upward and downward, the handle 15 The aperture of two collar aperture is corresponding the external diameter of 11 and the right handgrip 12 with the left hand, and the top of the handle 15 is a handle Handle, two collar aperture of the handle 15 are located at the left hand 11 and the lower section in the knee of the right handgrip 12 respectively, then will Described left hand is penetrated in the circular hole that cracks of the upper clamping piece left end 11, and described right handgrip 12 is penetrated in the upper folder In the circular hole that cracks of part right-hand member, and the left hand corresponds to the screwed hole below at 11 and the right-angle bending of the right handgrip 12 The bottom side of the upper clamping piece, be screwed into respectively with two bolts the left hand screwed hole below at 11 right-angle bendings is neutralized it is described In screwed hole below at the right-angle bending of right handgrip 12, the left hand is fastened in the screwed hole below at 11 right-angle bendings Bolt in bolt and the screwed hole being fastened to below at the right-angle bending of right handgrip 12, respectively positioned at the bottom of the upper clamping piece Side, when described left hand deploys 11 and described right handgrip 12, is fastened to the left hand below at 11 right-angle bendings Bolt in screwed hole and the bolt in the screwed hole being fastened to below at the right-angle bending of right handgrip 12, with the upper clamping piece Being downwardly projected for the postmedian of bottom surface is construed as limiting.

Described lower latch fitting 14 is made up of lower clamping piece and lower Quick Release, and described lower clamping piece is the blank of an aluminium extruded type, Can be that aluminium forges part or aluminium diecasting, respectively there is the circle that cracks of a upward and downward front portion on the lower clamping piece left side and the front portion on the right Hole, lower clamping piece left side front portion is cracked the cracking towards front of circular hole, and the anterior circular hole that cracks cracks on the right of the lower clamping piece Towards front, lower clamping piece left side front portion crack circular hole crack left side have a left lug forward, the lower clamping piece left side is convex The left side of piece is in that the right side of cracking of the anterior circular hole that cracks on the right of arc concave, the lower clamping piece has a right lug forward, it is described under There are a projection forward, left lug, the projection of the lower clamping piece and the lower clamping piece of the lower clamping piece in the anterior centre of folder Right lug between, be provided with a mutual cross-perforating, there is a circular hole of a upward and downward at the rear portion on the lower clamping piece left side, it is described under Rear portion on the right of folder has on the circular hole of a upward and downward, the circular hole and the right rear portion of lower clamping piece left side rear portion upward and downward It is lower to circular hole it is corresponding with two front fork stem close-fittings of the front fork 2, described front fork 2 is made up of two front fork stems, described front fork Bar is made up of metal circular tube, and the lower end of the front fork stem is in the gap that ∩ shapes are provided with flattening shape, front fork stem lower end flattening, The upper end of front fork stem described in two respectively with the circular hole of lower clamping piece left side rear portion upward and downward and the right rear portion upward and downward Circular hole close-fitting is socketed, and is reinforced with pin, the right side of the left lug of the lower clamping piece, the projection of the lower clamping piece and the lower clamping piece Cross-perforating between lug is used to install described lower Quick Release, and described lower Quick Release includes fast dismounting handle, circle hook bolt, arc-shaped pad Piece, two Quick Release springs, two nuts and c type fasteners, c type fasteners are made up of nylon, and there is opening for a c shapes front end of c type fasteners Mouthful, there is connecting hole the rear end of c type fasteners, and c type fasteners are bolted to the front of the lower clamping piece projection, and fast dismounting handle is One of one trigger piece, which is connected with the part of two disks arranged side by side, the disk arranged side by side of fast dismounting handle two, mutual eccentric orfice, Collar aperture rotation of the eccentric orfice by rivet with enclosing hook bolt on the disk of fast dismounting handle two is connected, and arc spacer is made of nylon Pad, the arc of arc spacer is corresponding with the arc concave on the left of the left lug of the lower clamping piece, and circle hook bolt penetrates arc-shaped pad In piece, the hole of the left lug of the lower clamping piece, in a Quick Release spring, in the hole of the lower clamping piece projection, another Quick Release spring neutralize In the hole of the right lug of lower clamping piece, two nuts can be tightened up into the lower clamping piece left side front portion to twisting positioning, switching fast dismounting handle Crack anterior hole of cracking on the right of hole and the lower clamping piece, then described lower clamping piece is tightened up and opened positioned at the lower clamping piece left end The left hand in seam circular hole 11 and positioned at the lower clamping piece right-hand member crack circular hole in the right handgrip 12, after interlocking Fast dismounting handle is caught in the c shape openings of c type fasteners.

Described left hand respectively penetrates 11 and described right handgrip 12 in the anterior circular hole that cracks in the lower clamping piece left side In the circular hole that cracks anterior on the right of the lower clamping piece, screwed hole of the left hand 11 bottom sides is screwed into respectively with two bolts In the screwed hole for neutralizing the bottom side of right handgrip 12, the left hand is fastened to the bolt in the screwed hole of 11 bottom sides As the anterior circular hole that cracks in the lower clamping piece left side to upper limit, the screwed hole of the bottom side of right handgrip 12 is fastened to In bolt, as the anterior circular hole that cracks on the right of the lower clamping piece to upper limit.

Described side arm 3 connect before including part, rotary part, after connect part and groove profile connects part, it is described before to connect part be aluminium extruded type Blank, it is described before connect part in overlook V-shaped, it is described before connect the circle that two front ends and a rear end of part respectively have a band to crack Hole, it is described before connect part two front ends two bands crack circular hole crack it is vertical be respectively provided with one laterally to perforation, it is described before connect before part The band at end crack circular hole be inconjunction with crack it is vertical laterally perforation is referred to as before amplexis hole, it is described before connect the band of part rear end and crack Circular hole crack it is vertical be provided with one laterally to perforation, it is described before connect the band circular hole that cracks of part rear end and be inconjunction with vertical transverse direction of cracking To perforation be referred to as after amplexis hole, it is described before connect part two before amplexis hole be fixedly connected on by the twist-on of bolt and nut in front fork Portion, it is described before connect the rear amplexis hole of part the front axle tube of rotary part, described rotation be fixedly connected with by the twist-on of bolt and nut Part includes front axle tube and two bearings, and the upper and lower side of front axle tube pore, which is respectively milled with, places the counterbore that spin axis is held, two bearings difference In the counterbore for being embedded in front axle tube upper and lower side, and by the endoporus of two bearings, corresponding to connecting both sides above and below the groove profile of part front end after described Face it is mutual to perforation, described rear even part is the slice processing part of aluminium extruded type, it is described after to connect the front end of part be in groove profile, it is described after Even the both sides up and down of part groove profile be provided with it is mutual to perforation, it is described before connect the both sides up and down of part groove profile and strike out fillet, it is described after Even there are a transverse holes back upper place of part, it is described after connect part back lower place end in rod, it is described after connect part and pass through spiral shell in the rear end of rod Tether the groove profile described in connecing and connect part, described groove profile, which connects part, to be stamped to form by the sheet metal of piece bar shaped, and the groove profile connects after part There is a mutual cross-perforating left and right sides at end, it is described after connect part groove profile it is mutual to being punched through to lock bolt connection rotation Part.

Described folding connecting rod 4 includes front bar, rear bar, sliding lock, little spring and button-headed bolt, and described front bar is opening Downward groove profile part, the both sides of the front-end and back-end of the front bar are respectively laterally mutual to perforation, the front bar groove top with one There are a slot-type openings front end in face, and there is the screwed hole of a upward and downward at the rear portion of front bar Cao top surface, the front bar upward and downward Twist-on button-headed bolt in screwed hole, the rear bar be transverse width in the groove profile part that Open Side Down, the rear bar groove profile with The horizontal external diameter of the front bar is corresponding, and the front portion of the rear bar and the both sides of rear end are respectively laterally mutual to perforation with one, There are a slot-type openings rear end of the rear bar groove top surface, and there are an elongated hole, the elongated hole of the rear bar in the front end of the rear bar groove top surface Middle installation sliding lock and little spring, described sliding lock are made up of slider, locking plate and connecting bolt, and slider is that the rear portion of sheet bottom surface has The working of plastics that one square-tube-shaped is protruded, the square-tube-shaped that slider is protruded is lowered into the front end in rear bar elongated hole, then by little spring under In the elongated hole for being put into the rear bar upwards, and two of little spring is set to hang down after the square-tube-shaped and the rear bar elongated hole of slider protrusion End, then locking plate is closed on the square-tube-shaped protruded in push button, penetrated with connecting bolt in the hole of locking plate and be fastened to slider protrusion side In tubular pore, little spring is set to be positioned in the elongated hole at the rear portion of locking plate, the rear portion of push button and rear bar, the front bar front end Laterally it is mutual to be punched through to lock bolt with it is described after connect part back upper place transverse holes rotation be connected, the preceding rod rear end Laterally it is mutual be punched through it is mutual to lock bolt and the rear bar front cross perforation rotation is connected, be fastened to it is described before The button-headed bolt of bar can be installed in the sliding lock interlocking in the rear bar.

Described vehicle body 5 includes bearing, bearing block, locating shaft, shock resistance block, a left side after vehicle body main part, fore bearing, trim ring, two Wheel fork, right wheel fork, shock-absorbing catch and rear board, described vehicle body main part is aluminium diecasting, the left side in the middle part of the vehicle body main part Counterbore before having first, the vehicle body main part first before counterbore connect to the right in through hole, the middle through hole of the vehicle body main part is to the right Counterbore before connection second, around counterbore before the vehicle body main part second, is provided with several horizontal screwed holes, the vehicle body Counterbore sinks after connecting second to the right after counterbore, the vehicle body main part first behind the back lower place of counterbore coherent first before main part first There are a transverse holes, the vehicle body master in through hole after counterbore is connected to the right after hole, the vehicle body main part second, the vehicle body main part front end Part front end cross-perforating is to be provided with a vertical screwed hole, the car below positioning shaft hole, the vehicle body main part positioning shaft hole There are a transverse holes above body main part, there is horizontal perforation at the rear portion of the vehicle body main part, and the rear portion horizontal perforation back upper place of vehicle body main part is in Flat, the front and rear of vehicle body main part flat is respectively provided with a screwed hole, the vehicle body main part second before counterbore inlay described Fore bearing, described fore bearing is the deep groove ball bearing of 6813 models, is placed on described trim ring before the vehicle body main part second The right side of counterbore, is penetrated in the several perforation of the trim ring with several bolts and is fastened to counterbore week before the vehicle body main part second Enclose fixed in several horizontal screwed holes, described trim ring is that several perforation are provided with the metal ring of a shim-like, the car Two screwed holes that counterbore is inlayed in the rear bearing described in one, the vehicle body main part flat after the second of body main part pass through two bolts The described shock resistance block of connection, described shock resistance block is by polyurethane into described bearing block is a metal stamping, the bearing block Front end have the counterbore of an embedded bearing, there are hole, hole and the vehicle body of the bearing block rearward end in the rear end of the bearing block Main part rear portion horizontal perforation is corresponding, and the rear bearing described in one is inlayed in the counterbore of the bearing block.

Described revolver fork and described right wheel fork are the metal parts of flat strip shaped, what the revolver fork and the right wheel were pitched The edge of the oriented inner side right-angle bending in top, revolver fork and right wheel fork top are opened on the edge of inner side right-angle bending There are a hole, the revolver fork and the right wheel in the connecting hole being connected with rear board, the front end that the revolver fork and the right wheel are pitched Fork it is anterior it is front and rear respectively have a hole, there are wavy bending, the revolver fork and institute in the middle part that the revolver fork and the right wheel are pitched The wavy bending of right wheel fork or so correspondence is stated, the several and battery case that is provided with for the postmedian that the revolver fork and the right wheel are pitched connects The connecting hole connect, the rear end punching that the revolver fork and the right wheel are pitched has the counterbore of embedded bearing, the revolver fork and the right side A bearing is respectively inlayed in the counterbore of wheel fork rear end, described shock-absorbing catch is stamped to form by sheet metal, a left side for the shock-absorbing catch There is upward flanging on right both sides, and the front and rear of the flanging of shock-absorbing catch two respectively has a hole, the holes of the flanging of shock-absorbing catch two Pitched by rivet and the revolver and the anterior front and rear gaps of right wheel fork are riveted, the revolver fork front aperture and the bearing block Rear hole is corresponding, and corresponding to the left surface of the vehicle body main part rear portion horizontal perforation, the right wheel fork front aperture corresponds to institute The right flank of vehicle body main part rear portion horizontal perforation is stated, by described revolver being pitched to lock bolt, described bearing block and described Right wheel pitches the rear portion for being connected to the vehicle body main part.

Described rear board is formed by plastic injection, and the left-right and front-back of the rear board has a downward stile, it is described behind There are several upward twist-on holes on the inside of the downward stile of plate or so, the position to the right of the downward stile in the rear board front has one The gap that Open Side Down, the bottom surface of the rear board has before the reinforcement of the clathrate of vertical and horizontal, described rear board or so The reinforcement of rear stile and rear board bottom surface vertical and horizontal is integrally coherent, the rear board upward on be also distributed There are antiskid particles, antiskid particles are upper prominent pinnacle round dots, several upward twist-ons on the inside of the downward stile in the left and right below Hole, is pitched with the revolver and connecting hole of the right wheel fork top to inner side right-angle bending edge is corresponding, and by passing through number Tap bolt pitches the revolver and right wheel fork is connected with described rear board.

Described locating shaft is a metal circular shaft, and the locating shaft two ends respectively have the screwed hole of an axial direction, the locating shaft There is the counterbore of a radial direction middle side, and described locating shaft penetrates the groove profile and connected in the mutual cross-perforating in part side, after And close-fitting is pressed into the positioning shaft hole of the vehicle body main part, then from the groove profile connect the mutual cross-perforating of part opposite side in wear Go out, and cause the radial direction counterbore of the locating shaft to correspond to screwed hole vertical below the vehicle body main part positioning shaft hole, with one Twist-on is fixed into the radial direction counterbore of the locating shaft in bolt screwed hole vertical below the vehicle body main part positioning shaft hole, And make the groove profile connect the mutual cross-perforating of part and the locating shaft two ends portion and rotate to be connected, the rear rod rear end is laterally mutual To be punched through to lock bolt with above the vehicle body main part transverse holes rotation be connected.

Described front-wheel 6 is 8 inches of wheel, and the front-wheel 6 is installed on the lower end of the front fork, a left side for the hind axle 71 The position to the right at end and middle part carries the screwed hole for having an axial direction at externally threaded axle, the end points of the right-hand member of hind axle 71, institute The left and right ends portion for stating hind axle 71 is respectively penetrated in the revolver pitches the brearing bore that rear end is pitched with the right wheel, described Left rear wheel 72 is 10 inches of wheels, and there is a screwed hole at the center of the left rear wheel 72, and described left rear wheel 72 is fastened to the trailing wheel The left end of axle 71 is fixed, and described off hind wheel 73 is 10 inches of wheels, and the centre of the two sides of off hind wheel 73 is respectively inlaid with an axle Hold, the off hind wheel 73 is socketed on the right-hand member of the hind axle 71, and be fastened to a bolt spiral shell of the right-hand member of hind axle 71 Pit is positioned.

Described drive mechanism 8 includes treadle part, step, crankshaft toothed wheel group, backgear group, flywheel and chain, described Treadle is made up of the slice processing part and a steel pipe of Al squeezing material, and the front end of the treadle part Al squeezing material slice processing part has There are cracking for a transverse direction, the treadle below one horizontal circular hole, the horizontal circular hole of the treadle part Al squeezing material slice processing part The horizontal vertical perforation for having a longitudinal direction cracked of part Al squeezing material slice processing part, the treadle part Al squeezing material slice processing A bolt and the nut of twist-on one, the horizontal circular hole of the treadle part Al squeezing material slice processing part are penetrated in the perforation of part longitudinal direction A steel pipe is socketed, and by the cooperation of the screw bolt and nut in the treadle part Al squeezing material slice processing part longitudinally perforation, will The horizontal circular hole of the treadle part Al squeezing material slice processing part is fixed with a steel pipe, the pore of the steel pipe of treadle part one and institute State positioning shaft diameter corresponding, there are slotted hole, the treadle part in the anterior lower section of the treadle part Al squeezing material slice processing part There is a screwed hole with step twist-on the rear end of Al squeezing material, the treadle part is divided to or so two, the steel pipe of treadle part described in two Two of hole and the locating shaft rotates socket, is then respectively matched somebody with somebody in the axial screwed hole of the locating shaft two ends with a bolt Unification pad twist-on is wherein positioned, and two bent axles that the long circle of treadle part described in two is slidably socketed in the crankshaft toothed wheel group are held On, the difference step of twist-on one of the screwed hole of treadle part rear end described in two, described crankshaft toothed wheel group include bent axle, prime gear, Siping City's base bolt and two crankshaft bearings, described bent axle are that the round steel and a disk of two right-angle bending are welded, described Have on the round steel of bent axle two right-angle bending, the screwed hole for respectively having an axial direction at the end points center at two ends, the disk of the bent axle One axis hole and four connecting holes, the right head of two right-angle bending round steel of the bent axle are penetrated in bent axle circle from left to right In the axis hole of piece, then the middle part of two right-angle bending round steel of the bent axle and the middle part of the bent axle disk left surface are welded Connect, described prime gear is modified nylon gear, the right flank of the prime gear has one to correspond to fore bearing described in two There is the step of protrusion, the prime gear in the junction of the boss of endoporus, the prime gear and the prime gear boss Boss on have on groove corresponding to the bent axle round steel, described prime gear and have an axis hole for running through left and right side, it is described The left surface of prime gear has four hexagonal counterbores, and four hexagonal counterbores are connected with to the right through hole, four of the prime gear A nut is respectively inlayed in hexagonal counterbore, the boss of the prime gear is penetrated in the endoporus of fore bearing described in two from left to right, The left head of the bent axle is penetrated in the axis hole of the prime gear and wins to the left to the left, then Siping City's base spiral shell is penetrated into bent axle In four connecting holes of disk and in four through holes of prime gear, and it is fastened in four nuts on the left of prime gear, then by two Crankshaft bearing is socketed on two of bent axle, and is fastened to two bolts in the screwed hole of crankshaft two end and positions, described rear class tooth Wheel group is made up of rear class gear, rear axle and sprocket wheel, the left part rear class gear of the rear axle, the right part and a left side of the rear axle End, is respectively penetrated after be embedded in the vehicle body main part second in the endoporus of the rear bearing of counterbore, and be embedded in the axle In the endoporus of the rear bearing of bearing counterbore, described sprocket wheel is fixedly connected on the right head of the rear axle, and described flywheel is twisted It is connected in the position to the right at the middle part of hind axle 71, described chain is wire-wrapped in described sprocket wheel and described flywheel.

Claims (10)

1. a kind of quick stretching handle folds Shockproof type three-wheel scooter, including quick stretching handle, front fork stem, side arm, folding connecting rod, Vehicle body, front-wheel, hind axle, left rear wheel, off hind wheel and drive mechanism, it is characterized in that：Quick stretching handle includes left hand handle, the right hand , upper latch fitting, lower latch fitting and handle, left hand being to be formed by the upper end of pipe as right-angle bending with right handgrip, left hand and it is right Lower section at right-angle bending is respectively provided with screwed hole by hand, and the side with right handgrip bottom is respectively provided with screwed hole, upper latch fitting by left hand It is made up of upper clamping piece and upper Quick Release, respectively there is the circular hole that cracks of a upward and downward left and right ends of upper clamping piece, and upper clamping piece left and right ends are opened Seam circular hole cracks towards front, and there are a left lug forward, upper clamping piece right-hand member in the crack left side of cracking of circular hole of upper clamping piece left end There is a right lug forward on the crack right side of cracking of circular hole, has a projection forward in the middle part of upper clamping piece, left lug in upper clamping piece, There is a mutual cross-perforating between projection and right lug, upper Quick Release is installed on the left lug, projection and right lug phase of upper clamping piece In mutual cross-perforating, left hand with right handgrip penetrating in the circular hole that cracks of upper clamping piece left and right ends upward and downward, and by left hand handle Correspond to the bottom side of upper clamping piece with the screwed hole below at right handgrip right-angle bending, be screwed into left hand respectively with two bolts and right Hand in the screwed hole below at right-angle bending, by left hand with right handgrip and upper clamping piece make to rotate it is spacing, upper Quick Release can be received The circular hole that cracks of crack circular hole and the right-hand member of tight upper clamping piece left end, the left hand handle and right handgrip in upper clamping piece are fixed；Lower latch fitting It is made up of lower clamping piece and lower Quick Release, the front portion on the lower clamping piece left side respectively has the circular hole that cracks of a upward and downward, lower folder with the front portion on the right Part left side front portion is cracked the cracking towards front of circular hole, and the anterior circular hole that cracks cracks towards front, lower clamping piece on the right of lower clamping piece There is a left lug forward in the crack left side of cracking of circular hole of left side front portion, there is the right side of cracking of the anterior circular hole that cracks on the right of lower clamping piece There is a projection forward one right lug forward, the anterior centre of lower clamping piece, lower clamping piece left lug, projection and right lug it Between, there is a mutual cross-perforating, the rear portion on the lower clamping piece left side has the rear portion on the right of the circular hole of a upward and downward, lower clamping piece to have on one It is lower to circular hole, the circular hole of lower clamping piece left side rear portion upward and downward and the circular hole of the right rear portion upward and downward be connected with front fork, left hand handle Penetrated with right handgrip in anterior and the anterior upward and downward in the right the circular hole that cracks in the lower clamping piece left side, left hand handle is screwed into respectively with two bolts In the screwed hole of right handgrip bottom, lower Quick Release is installed on the left lug, projection and the mutual cross-perforating of right lug of lower clamping piece In, lower Quick Release can tighten up the circular hole that cracks of crack circular hole and the right-hand member of lower clamping piece left end, by the left hand handle and the right hand in lower clamping piece Fixed, shake hands to be connected to left hand the top with right handgrip, and positioned at the top of upper clamping piece；Side arm is by preceding even part, rotating part Part, after connect part and groove profile connects part composition, the preceding amplexis hole of preceding even part is fixedly connected in the middle part of front fork, preceding even part it is front and rear respectively have embrace Connect hole, rotary part connects before being installed on the rear amplexis hole of part, after to connect the front end of part be in groove profile, after connect the both sides up and down of part groove profile Have mutual to perforation, after connect the back upper place of part and have a transverse holes, after connect part back lower place end in rod, after connect part in after rod End one groove profile of connection connects part, and there is a mutual cross-perforating left and right sides that groove profile connects part rear end, after connect mutual pair of part groove profile It is punched through to lock bolt connection rotary part；Folding connecting rod includes front bar, rear bar, sliding lock, little spring and button-headed bolt, preceding Bar is the groove profile part that Open Side Down, and the both sides of the front-end and back-end of front bar are respectively laterally mutual to perforation, front bar Cao Ding with one There is twist-on button-headed bolt in the screwed hole of a upward and downward, the screwed hole of front bar upward and downward at the rear portion in face, and rear bar is that Open Side Down Groove profile part, rear bar front portion and rear end both sides respectively with one laterally it is mutual to perforation, the front end of rear bar groove top surface has one Sliding lock and little spring are installed, the transverse direction of front bar front end is mutual to being punched through to lock bolt with after in elongated hole, the elongated hole of rear bar Even the transverse holes of part back upper place rotate connection, and the transverse direction of preceding rod rear end is mutual to be punched through to lock bolt and rear bar front cross Mutual rotates connection to perforation, is fastened to the sliding lock interlocking that the button-headed bolt of front bar can be installed in rear bar；Vehicle body by Bearing after vehicle body main part, fore bearing, trim ring, two, bearing block, locating shaft, shock resistance block, revolver fork, right wheel fork, shock-absorbing catch and after Panel is constituted, counterbore before the left side in the middle part of vehicle body main part has first, vehicle body main part first before counterbore connect to the right in through hole, car Counterbore, car behind the back lower place of counterbore coherent first before counterbore before the middle through hole of body main part connects second to the right, vehicle body main part first Through hole after counterbore is connected to the right after counterbore after counterbore connects second to the right after body main part first, vehicle body main part second, vehicle body main part Front end have and have a transverse holes above a transverse holes, vehicle body main part, the transverse holes of vehicle body main part front end are positioning shaft hole, vehicle body There is a horizontal perforation at the rear portion of main part, the lower section connection shock resistance block of vehicle body main part rear end, vehicle body main part second before before counterbore inlays Bearing, the right side for being placed on counterbore before vehicle body main part second with trim ring is fixed, and fore bearing is fixed on before the second of vehicle body main part and sunk Kong Zhong, vehicle body main part second after counterbore inlay one after bearing, bearing after inlaying one in bearing block, bearing base rear end has and vehicle body The corresponding hole of main part rear portion horizontal perforation, the cross-perforating at vehicle body main part rear portion passes through to lock bolt connection revolver fork, bearing block With right wheel fork, revolver is pitched and right wheel fork is all the wheel fork of rear end embedded bearing, and shock-absorbing catch is connected between revolver fork and right wheel fork, Locating shaft penetrates groove profile and connected in the mutual cross-perforating in part rear end, and in the positioning shaft hole of close-fitting press-in vehicle body main part, after rear bar End is laterally mutual to be connected to being punched through rotating lock bolt with the transverse holes above vehicle body main part, and the both ends of hind axle are worn In the brearing bore for entering the rear end that revolver fork and right wheel are pitched, left rear wheel and off hind wheel are connected to the left and right two of hind axle End, rear board is bolted to the top that revolver fork and right wheel are pitched, and front-wheel is installed on front fork；Drive mechanism includes treadle Part, step, crankshaft toothed wheel group, backgear group, flywheel and chain, crankshaft toothed wheel group is by bent axle, prime gear and two crankshaft bearings Constitute, bent axle is that the round steel and a disk of two right-angle bending are welded, and prime gear is a nylon gear, prime gear Right flank have a boss for corresponding to fore bearing endoporus, have the groove corresponding to bent axle round steel, prime on the boss of prime gear The boss of gear is penetrated in the endoporus of fore bearing from left to right, and the left head of bent axle is penetrated in the axis hole of prime gear to the left, Coordinated with bolt and nut and fix prime gear and bent axle, then two crankshaft bearings are socketed on to two of bent axle, rear class gear train It is made up of rear class gear, rear axle and sprocket wheel, rear class gear is fixedly connected on the left part of rear axle, the right part of rear axle is penetrated in edge It is embedded in after vehicle body main part second in the rear brearing bore of counterbore, the left end of rear axle is penetrated in the rear brearing bore in bearing block, Sprocket wheel is fixedly connected on the right head of rear axle, and flywheel is installed on the position to the right in the middle part of hind axle, and chain is wire-wrapped in sprocket wheel and flywheel, There is a pore corresponding with locating shaft the front end of treadle part, and there is a slotted hole the anterior lower section of treadle part, the rear end of treadle part have with The screwed hole of step twist-on, the pore of two treadle part front ends rotates the two for being socketed on locating shaft, and the slotted hole of two treadle parts is slided Dynamic to be socketed on two crankshaft bearings of crankshaft toothed wheel group, two steps are fastened in two screwed holes of two treadle part rear ends.

2. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：The upper clamping piece is left The left side of lug is in arc concave, and the arc of arc spacer is corresponding with the arc concave on the left of the left lug of the upper clamping piece, it is described under The left side of the left lug of folder is in arc concave, and the arc of arc spacer is corresponding with the arc concave on the left of the left lug of the lower clamping piece.

3. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：Connect part before described In the V-shaped of vertical view, it is described before connect part two before amplexis hole be fixedly connected on by the twist-on of bolt and nut in the middle part of front fork, it is described The rear amplexis hole of preceding even part is fixedly connected with the front axle tube of rotary part by the twist-on of bolt and nut.

4. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：Described rotating part Part includes front axle tube and two bearings, it is described after to connect the front end of part be in groove profile, it is described after connect the both sides up and down of part groove profile and be provided with phase It is mutual to perforation, it is described after connect part groove profile it is mutual to being punched through to lock bolt connection rotary part.

5. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：The front bar groove top The front end in face has the transverse width in a slot-type openings, the rear bar groove profile corresponding with the external diameter that the front bar is horizontal, described There are a slot-type openings rear end of rear bar groove top surface, and described sliding lock is made up of slider, locking plate and connecting bolt, and slider is sheet bottom There is the working of plastics that a square-tube-shaped is protruded at the rear portion in face, and the square-tube-shaped that slider is protruded is lowered into the front end in rear bar elongated hole, then will Little spring is put into the elongated hole of the rear bar from bottom to top, and two of little spring is hanged down the square-tube-shaped and described of slider protrusion Rear bar elongated hole rear end, then locking plate is closed on the square-tube-shaped protruded in push button, penetrated in the hole of locking plate and be fastened to connecting bolt Slider is protruded in the pore of square-tube-shaped, little spring is positioned in the elongated hole at the rear portion of locking plate, the rear portion of push button and rear bar.

6. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：Positioned at the vehicle body Before main part second around counterbore, be provided with below several horizontal screwed holes, the vehicle body main part positioning shaft hole be provided with one erect To screwed hole, be that several perforation are provided with the metal ring of a shim-like with described trim ring, described bearing block is a gold medal Belong to stamping, there is the counterbore of an embedded bearing front end of the bearing block, and there are hole, the bearing base rear end in the rear end of the bearing block Hole is corresponding with the vehicle body main part rear portion horizontal perforation.

7. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：Revolver fork and To inner side right-angle folding above the edge of the oriented inner side right-angle bending in top of the right wheel fork, the revolver fork and right wheel fork The connecting hole being connected with rear board is opened on curved edge, the rear end punching that the revolver fork and the right wheel are pitched has the heavy of embedded bearing Hole, the revolver fork and the right wheel are pitched in the counterbore of rear end and respectively inlay a bearing, and described shock-absorbing catch is by sheet metal punching press Form, the right and left of the shock-absorbing catch has a upward flanging, the front and rear of the flanging of shock-absorbing catch two respectively has a hole, described The holes of the flanging of shock-absorbing catch two is pitched by rivet and the revolver and the right wheel is pitched anterior front and rear gaps and riveted.

8. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：Described locating shaft It is a metal circular shaft, the locating shaft two ends respectively have the side in the middle of the screwed hole of an axial direction, the locating shaft to have a radial direction Counterbore, described locating shaft penetrates the groove profile and connected in the mutual cross-perforating in part side, and then close-fitting is pressed into the vehicle body In the positioning shaft hole of main part, then from the groove profile connect the mutual cross-perforating of part opposite side in pass, and cause the locating shaft Radial direction counterbore correspond to vertical screwed hole below the vehicle body main part positioning shaft hole, it is fixed in the vehicle body main part with a bolt Twist-on is fixed into the radial direction counterbore of the locating shaft in vertical screwed hole below the axis hole of position, and it is mutual the groove profile is connected part Cross-perforating and the locating shaft two ends portion rotate and be connected, the rear rod rear end is laterally mutual to being punched through to locking bolt Rotate and be connected with the transverse holes above the vehicle body main part.

9. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：Described treadle is It is made up of the slice processing part and a steel pipe of Al squeezing material, the front end of the treadle part Al squeezing material slice processing part has one laterally Circular hole, have below the horizontal circular hole of the treadle part Al squeezing material slice processing part one it is horizontal crack, the treadle part aluminium extruded The horizontal vertical perforation for having a longitudinal direction cracked of section bar slice processing part, the treadle part Al squeezing material slice processing part longitudinal direction Perforation in penetrate a bolt and the nut of twist-on one, the horizontal circular hole socket one of the treadle part Al squeezing material slice processing part Steel pipe, and by the cooperation of the screw bolt and nut in the treadle part Al squeezing material slice processing part longitudinally perforation, stepped on described The horizontal circular hole of rod member Al squeezing material slice processing part is fixed with a steel pipe, pore and the positioning of the steel pipe of treadle part one Shaft diameter is corresponding, and there are slotted hole, the treadle part aluminium extruded type in the anterior lower section of the treadle part Al squeezing material slice processing part There is a screwed hole with step twist-on the rear end of material, the treadle part is divided to or so two.

10. quick stretching handle according to claim 1 folds Shockproof type three-wheel scooter, it is characterized in that：Described bent axle Gear train includes bent axle, prime gear, Siping City's base bolt and two crankshaft bearings, and described bent axle is the circle of two right-angle bending Steel and a disk are welded, the round steel of described bent axle two right-angle bending, the spiral shell for respectively having an axial direction at the end points center at two ends There are an axis hole and four connecting holes, the right head of two right-angle bending round steel of the bent axle on pit, the disk of the bent axle Penetrate from left to right in the axis hole of the bent axle disk, then the middle part of two right-angle bending round steel of the bent axle with it is described The middle part welding of bent axle disk left surface, the right flank of the prime gear has one to correspond to the convex of fore bearing endoporus described in two The junction of platform, the prime gear and the prime gear boss also has on the step of protrusion, the boss of the prime gear There is the groove corresponding to the bent axle round steel.