CN2275549Y - Adjustable handlebar stem for bicycle - Google Patents

Abstract

The utility model relates to an adjustable vertical rod for handlebars of bicycles, which is mainly provided with a vertical rod and a handle, wherein, a female rotating shaft is fixedly arranged on the vertical rod, and a male rotating shaft is arranged on the handle. One end surface of the female rotating shaft is provided with a concave containing slot, and one end of the male rotating shaft is fixedly provided with a convex block which is pivoted in the concave containing slot of the female rotating shaft and screwed and fixed by a positioning shaft sleeve and a clamping and fixing shaft sleeve which are inlaid in the side surface of the female rotating shaft, a through screw bolt and a nut. An inclined angle between the handle and the vertical rod can be adjusted conveniently by loosening the nut and rotating the male rotating shaft.

Description

The adjustable handgrip montant of bicycle

The novel attachments of a bicycle structure field that relates to of this full mold relates in particular to the adjustable handgrip montant of the bicycle that can adjust differing tilt angles between a kind of montant and handgrip.

Bicycle is the vehicle and the outdoor activity apparatus of widespread use all over the world, extensive market.Existing bicycle for the height that adapts to different people and handgrip montant structure that brachium is adopted as shown in Figure 1, the bottom of montant 10 is a fixed link 11, inside is hollow, the top is a portable bar 12, portable bar 12 is articulated in the hollow bulb of fixed link 11, and can slide up and down, utilize a screw tightening 13 that fixed link 11 and portable bar 12 are fixed.The affixed handgrip 14 in portable bar upper end, when people need lifting handle or reduce handgrip, can be by opening bolt element 13, rise or descend for portable bar 12, and then tighten up spiro connecting element 13, satisfying the requirement of different heights of bicycle rider and brachium,, this kind structure wishes that handgrip can do the requirement of support with favored policy but can not satisfying bicycle rider.

The purpose of this utility model is to provide a kind of handgrip adjustable height, adjustable handgrip montant structure that the handgrip leaning angle is adjustable, make handgrip have the function at adjustable angle of inclination, and degree of blocking is stronger.

The adjustable handgrip montant of bicycle of the present utility model includes a montant and a handgrip, it is characterized in that this handgrip be provided with one with the blocks of affixed all-in-one-piece one hollow shaft of handgrip, its end face is equipped with one 8 projections, the side of projection is provided with a perforation; Be provided with female rotating shaft of a blocks on the montant top, the one side offers and is a conduit of wearing wall, this conduit outside is provided with affixed screw, screw is locked by this screw and female rotating shaft is locked mutually with montant, end face at hollow shaft is provided with a recessed groove of receiving, this recessed groove of receiving matches with the projection of this hollow shaft, and the side is provided with a perforation equally corresponding to hollow shaft punch position place, and ring week establish an annular groove what bore a hole, establish two positioning grooves corresponding extension of annular groove periphery, female rotating shaft is articulated with the recessed projection of receiving groove and hollow shaft;

Two location axle sleeves, for the centre is provided with the tabular body of open-work, the outer ring surface of location axle sleeve is provided with two spacers that are halved together with above-mentioned two positioning grooves, and end face is provided with embossing, and the location axle sleeve is connected in the annular groove of female rotating shaft, and embossing is outwardly;

Two fix axle sleeve, are a tabular body, and the extension of one side is established one and fixed body, and the center is provided with a square through hole, are fixing the embossing that can be meshed with the location axle sleeve that is provided with in ring week of body end face, and the fixing body that fixes axle sleeve is articulated in the middle open-work of locating axle sleeve;

One bolt, its middle part is a square pole, this bolt passes and fixes the square perforation of axle sleeve, location axle sleeve open-work and the perforation of hollow shaft side, and is solid with the nut spiral shell again.

Handgrip is arranged in the hole of hollow shaft one end during the said structure assembling, the pivot joint of mat hollow shaft, female rotating shaft between vertical tube and handle, and utilize the fixing of axle sleeve, the variation of adjustable tilt angle, wherein fix axle sleeve and pass the open-work of locating axle sleeve, and be articulated in the perforation of this mother's rotating shaft, and pass by bolt at last and fix axle sleeve, female rotating shaft and hollow shaft, be rotated with nut again.Rotatable one jiao characteristics not only can realize the best setting at handgrip angle of inclination when tight each other locking of above-mentioned hollow shaft and female rotating shaft and loose nut, and the chimeric and embossing interlock of location film trap, make not have the rotation situation between all component, and stronger degree of blocking is arranged.

In addition, female rotating shaft one side is offered is groove and the affixed screw of wearing wall, and available screw should mother's rotating shaft be locked in any position of montant, and realize the adjustable height of handgrip.

Below with example and accompanying drawing to its structure with further narration.

Description of drawings:

Fig. 1 is for having the driver now the montant assembly drawing;

Fig. 2 is the exploded perspective view of present embodiment handgrip montant;

Fig. 3 is the assembly drawing of present embodiment handgrip montant;

Fig. 4 is the A---A section-drawing of Fig. 3;

Fig. 5 is the B---B cutaway view of Fig. 3;

Fig. 6 is that the handgrip of present embodiment is adjusted scheme drawing.

By shown in Fig. 1-6 as seen, the adjustable handgrip montant of the bicycle that this reality is revolved includes a montant 20, a handgrip 30, on handgrip, be placed with one with handgrip 30 affixed all-in-one-piece hollow shafts 40, its end face is equipped with a projection 41, the side of projection 41 be provided with one the perforation 42; Be provided with female rotating shaft 50 of a blocks on montant 20 tops, its end face is provided with recessed groove 51, biside plate 52 and the folder post 53 received, folder post 53 centers are provided with the perforation 531 with montant 20 Joints, one side of folder post 53 offers and is the conduit 532 of wearing wall, the outside of conduit 532 is provided with affixed screw 533, and screw 90 is locked by screw 533 and female rotating shaft 50 is locked mutually with montant 20.The recessed groove 51 of receiving matches with the projection 41 of hollow shaft 40, and biside plate 52 is provided with same perforation 54, and is concaved with an annular groove 55 the ring week of this perforation 54 corresponding to the position of hollow shaft perforation 42, respectively is extended with a positioning groove 551 at two of annular groove.In addition, be provided with a grooving 56 that is the Contraband font at the leading flank of folder post 53, this grooving 56 offers slitting slot 561 at the recessed place, bottom surface that receives groove 51, and a transection slot 562 is respectively extended to a side in the two ends up and down of this slitting slot 561; Above-mentioned female rotating shaft 50 is articulated with the recessed projection 41 of receiving groove 51 and hollow shaft 40, and mat folder post is fixed in the top of this montant 20.

The both sides of two location axle sleeves 60 respectively are provided with a spacer 62, one end face is provided with the embossing 63 of scattering vertically, this location axle sleeve 60 is connected in the annular groove 55 of female rotating shaft 50, makes embossed channel 63 outwardly, and spacer 62 then just is embedded in the positioning groove 551 of female rotating shaft 50.

Fix axle sleeve 70 1 ends and be extended with a fixing body 71, the centre is provided with a square perforation 72, ring is provided with embossing 73 week, this fixing axle sleeve 70 mats fixing body 71 passes the open-work 61 of this location axle sleeve 60 and is articulated in the perforation 54 of this mother's rotating shaft 50, and its embossing 73 is located embossing 63 interlock mutually of axle sleeve 60 with this.

The middle part of bolt 80 is a square pole 81, and end is a screw thread 82, and this bolt 80 passes and fixes axle sleeve 60, female rotating shaft 50 and hollow shaft 40, and is solid with nut 83 spiral shells again.

Embossing 63 outwardly, spacer 62 then just is embedded in the positioning groove 551 of female rotating shaft 50.

Above-mentioned fixing rotating shaft 70 1 ends are extended with one and fix body 71, one end is sharp edge, the centre is provided with square perforation 70 mats and fixes body 71, interior shoulder face ring week also is provided with embossing 73, these fixing axle sleeve 70 mats fix the open-work 61 that body 71 passes this location axle sleeve 60, and be articulated in the perforation 54 of female rotating shaft 50, its embossing 73 is located embossing 63 interlock mutually of axle sleeve 60 with this.

The middle part of bolt 80 is a square pole 81, and end then is a screw thread 82, and this bolt 80 passes and fixes axle sleeve 60, female rotating shaft cover 50 and hollow shaft 40, consolidates it with nut 83 spiral shells again.

By as seen shown in Figure 3, when combination, the tongue 41 of hollow shaft 40 is articulated in the recessed groove 51 of receiving of this mother's rotating shaft 50, should locate the annular groove 55 that axle sleeve 60 is connected to this mother's rotating shaft 50 again, then should fix the open-work 61 that axle sleeve 70 passes this location axle sleeve 60, and be articulated in the perforation 54 of this mother's rotating shaft 50, this fixes fixing body 61 ends of axle sleeve 60, and cuts together with recessed groove 51 sides of receiving of this mother's rotating shaft 50; By as seen shown in Figure 4, the perforation 42 of this hollow shaft 40 at this moment connects with the perforation 72 of this fixing axle sleeve 70, at last this bolt 80 is passed the hole that connects of this fixing axle sleeve 70, hollow shaft 40, be spirally connected with nut 83 again, hollow shaft 40 and female rotating shaft 50 can be fixed; And the displacement of biside plate 52 inside clampings that should mother's rotating shaft 50 is this hollow shaft 40 of the inside clamping of fulcrum with the translot terminal 563 of this mother's rotating shaft grooving 56.

By as seen shown in Figure 5, when this hollow shaft 40 with female rotating shaft 50 fixedly the time, because of this bolt square pole 81 is subjected to the square perforation 72 of this fixing axle sleeve.Fixing with this hollow shaft perforation 42, with embossing 63 interlock mutually that fixes axle sleeve 70, and the spacer 62 that should locate axle sleeve 60 is chimeric with the positioning groove 551 of this mother's rotating shaft 50 again, bolt make bolt 80, fixing axle sleeve 70, location axle sleeve 60 and female rotating shaft 50 be bonded into one, so can not followed the rotation of nut 83 and be rotated.When the screw thread 82 of this nut 83 along this bolt 80 moves toward interior, just increase the degree of blocking of 50 of this hollow shaft 40 and female rotating shafts, make 50 of this hollow shaft 40 and female rotating shafts not have loosening situation.

By shown in Figure 6 visible as with these bolt 80 spiral shell pines, can rotate this hollow shaft 40 for fulcrum by this bolt 80 of mat, adjust this hollow shaft 40 and be the appropriate tilt angle with this mother's rotating shaft 50, because this hollow shaft 40 and driver are 30 affixed being integral, so the rider can arbitrarily adjust optimal driver 30 positions, make the driver cooperate rider's the posture that drives to 30, and be the gripping angle of the most comfortable.

In addition, this mother's rotating shaft 50 does not have grooving 56532, can be used as the elasticity of clamping gap, and increases the deflection of this mother's rotating shaft 50 and flexible.

Claims (2)

1, the adjustable handgrip montant of bicycle includes a montant and a handgrip, it is characterized in that this handgrip be provided with one with the blocks of affixed all-in-one-piece one hollow shaft of handgrip, its end face is equipped with one 8 projections, the side of projection is provided with a perforation; Be provided with female rotating shaft of a blocks on the montant top, the one side offers and is a conduit of wearing wall, this conduit outside is provided with affixed screw, screw is locked by this screw and female rotating shaft is locked mutually with montant, end face at hollow shaft is provided with a recessed groove of receiving, this recessed groove of receiving matches with the projection of this hollow shaft, and the side is provided with a perforation equally corresponding to hollow shaft punch position place, and ring week establish an annular groove what bore a hole, establish two positioning grooves corresponding extension of annular groove periphery, female rotating shaft is articulated with the recessed projection of receiving groove and hollow shaft;

Two location axle sleeves, for the centre is provided with the tabular body of open-work, the outer ring surface of location axle sleeve is provided with two spacers that are halved together with above-mentioned two location channel moulds, and end face is provided with embossing, and the location axle sleeve is connected in the annular groove of female rotating shaft, and embossing is outwardly;

Two fix axle sleeve, are a tabular body, and the extension of one side is established one and fixed body, and the center is provided with a square through hole, are fixing the embossing that can be meshed with the location axle sleeve that is provided with in ring week of body end face, and the fixing body that fixes axle sleeve is articulated in the middle open-work of locating axle sleeve;

One bolt, its middle part is a square pole, this bolt passes and fixes the square perforation of axle sleeve, location axle sleeve open-work and the perforation of hollow shaft side, and is solid with the nut spiral shell again.

2, it is characterized in that by the adjustable handgrip montant of the described bicycle of claim 1 changeing the recessed medial surface of receiving groove mother is provided with a grooving that is the Contraband font that is formed by a slitting slot and two transection slots.

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