CN201677987U

CN201677987U - Beam structure

Info

Publication number: CN201677987U
Application number: CN2010201320358U
Authority: CN
Inventors: 王�华
Original assignee: Giant China Co Ltd
Current assignee: Giant China Co Ltd
Priority date: 2010-03-10
Filing date: 2010-03-10
Publication date: 2010-12-22
Anticipated expiration: 2020-03-10

Abstract

A beam structure is mounted on a connecting portion of two folding pipe fittings and comprises a beam pipe, a fixed folding pipe and a movable folding pipe, wherein the beam pipe is provided with an open slot, and the fixed folding pipe and the movable folding pipe can respectively extend into two ends of the beam pipe. A clamping mechanism facilitating fixedly clamping the fixed folding pipe and the movable folding pipe is arranged on the open slot of the beam pipe; a positioning slotted hole is axially arranged on the fixed folding pipe; the beam pipe is limited to slide inside the positioning slotted hole on the fixed folding pipe by the aid of a rotary fixing positioning screw; a liner with an open slot is further sleeved between the beam pipe and the fixed folding pipe in a penetrating manner; the positioning screw is limited to slide inside the positioning hole on the fixed folding pipe after fixing the beam pipe and the liner; a plug cover is further arranged between the liner and the movable folding pipe; the plug cover is convenient to be mounted inside the liner as a narrowed pipe orifice of the open slot is arranged at one end of the plug cover; and an annular slot capable of containing a pipe orifice of the movable folding pipe is arranged at the other end of the plug cover. The beam structure is capable of reliably and stably clamping and fixing the two folding pipe fittings to achieve excellent effects of locking and opening.

Description

The bundle substructure

Technical field

The utility model belongs between the pipe fitting and is connected and fixed, and particularly a kind of bundle substructure of clamp fitting two folding pipe fittings is particularly useful for being connected and fixed between folding a plurality of pipe fittings in the folding bicycle.

Background technology

In the prior art, folding bicycle is realized folding effect by fold mechanism is installed on the pipe fitting, usually this fold mechanism is made up of hinged left folding seat of a side and right folding seat, this left folding seat and right folding seat are welded in two folding pipe fittings respectively, and this left folding seat and right folding seat opposite side are realized two folding pipe fitting fastenings by a quick detach assembly.

For the folding bicycle front and back wheel when folding, need to realize by the fold mechanism at pipe middle part is installed down, for folding bicycle traffic safety, reliable, this front fork vertical bar with should in also be provided with on the bonded assembly above between the pipe and manage.For the folding bicycle of such structure, realize between the folding bicycle front and back wheel folding, must pipe down and on manage respectively that correspondence is provided with two fold mechanisms.Like this will same folding direction (front and back wheel doubling) must be respectively pipe down and on pipe two fold mechanisms are installed respectively owing to design, make and error that operation produces, it is quite difficult wanting to reach two free and relaxed folding effects of fold mechanism.

Summary of the invention

In order to remedy above deficiency, the utility model provides a kind of bundle substructure, can fold pipe fittings by reliable and stable ground clamp fitting two, reaches locking and opens very good effect.

The technical solution of the utility model is to realize: a kind of bundle substructure, be installed on two folding pipe fitting connecting portions, comprise beam tube, can extend into fixed fold pipe and activity folded tube in these beam tube two ends respectively with open slot, the open slot of this beam tube is provided with the clamping mechanism of being convenient to this fixed fold pipe of clamp fitting and activity folded tube, this fixed fold pipe is provided with location notch hole vertically, and this beam tube is limited in the location notch hole on this fixed fold pipe by the set screw that is rotated with and slides.

Further improve as the utility model, also wear a lining between this beam tube and this fixed fold pipe, after this set screw is fixed this beam tube and lining, be defined on this fixed fold pipe and slide in the knock hole with open slot.

Further improve this lining and corresponding respectively protuberance and the assembly opening of being convenient to install that be provided with of this beam tube as the utility model.

Further improve as the utility model, also be provided with gag between this lining and this activity folded tube, this gag one end is provided with the mouth of pipe that dwindles of open slot, be convenient to be installed in this lining, and the other end is provided with the annular groove of ccontaining this activity folded tube mouth of pipe of energy, also can this gag one end be provided with can ccontaining this lining mouth of pipe annular groove, and the other end is provided with the mouth of pipe that dwindles of open slot, is convenient to be installed in this activity folded tube.

Further improve as the utility model, this clamping mechanism by one group of lug being located at these beam tube upper shed groove both sides side by side, pass the set screw of this group lug and be rotated with and form in the setting nut of this set screw.

Further improve as the utility model, this clamping mechanism passes the adjusting bolt of this group lug, the transverse axis that is fixed in this adjusting bolt end and end rotational fixation by one group of lug, activity being located at these beam tube upper shed groove both sides and forms in the spanner of this transverse axis, the end outer rim of this spanner is the eccentric cam shape, and this adjusting bolt other end is rotated with setting nut.

Further improve as the utility model, this fixed fold pipe and activity folded tube are respectively forms the two folding pipe fittings of going up pipe in the folding bicycle.

Useful technique effect of the present utility model is: the beam tube two ends in the described bundle substructure are placed in the fixed fold pipe and the activity folded tube mouth of pipe respectively, make that by the location notch hole on set screw and this fixed fold pipe this beam tube can be along this fixed fold tubular axis to slip simultaneously, design is when opening this beam tube upper clamping mechanism like this, this beam tube can freely be enclosed within this fixed fold pipe and the activity folded tube butt joint mouth of pipe, because the corresponding mouth of pipe of this beam tube pivot bush unit, so even two butt joint mouth of pipe shaft centre lines are not quite identical, also can be easy to be enclosed within the activity folded tube mouth of pipe, reach clamp fitting two folding pipe fittings with manual operation.

This lining helps between this beam tube and the fixed fold pipe fixing, and the design of this gag also helps fixing between this beam tube, lining and the activity folded tube.

For managing this bundle clamp mechanism of installing on the folding bicycle, because that the fold mechanism that front and rear wheel is installed by this time pipe is realized is folding, this bundle substructure was installed and should go up pipe, also be easy to realization and fold, reach folding convenient, stable effect by bike.

Description of drawings

View when Fig. 1 folds pipe fitting for the utility model locking two;

The view of Fig. 2 when opening described clamping mechanism in the utility model;

View when Fig. 3 retreats for beam tube described in the utility model;

Fig. 4 is the view after activity folded tube described in the utility model folds;

Fig. 5 is the view after another embodiment folds in the utility model;

Fig. 6 is an assembling scheme drawing of the present utility model;

Fig. 7 is the structural representation of lining described in the utility model and beam tube.

Contrast above accompanying drawing, be explained as follows:

1---beam tube 15---regulated bolt

11,41,51---open slot 16---transverse axis

12---set screw 17---spanner

13---assembly opening 18---setting nut

14---lug 2---fixed fold pipe

21---location notch hole 42---protuberance

3---activity folded tube 5---gag

4---lining 52---annular groove

The specific embodiment

In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, below be further described:

A kind of bundle substructure, be installed on two folding pipe fitting connecting portions, comprise beam tube 1, can extend into fixed fold pipe 2 and activity folded tube 3 in these beam tube 1 two ends respectively with open slot 11, the open slot 11 of this beam tube is provided with the clamping mechanism of being convenient to this fixed fold pipe 2 of clamp fitting and activity folded tube 3, this fixed fold pipe 2 is provided with location notch hole 21 vertically, and this beam tube 1 is limited in the location notch hole 21 on this fixed fold pipe 2 by the set screw 12 that is rotated with and slides.

Also wear a lining 4 between this beam tube 1 and this fixed fold pipe 2 with open slot 41, after this set screw 12 is fixed this beam tube and lining, be defined on this fixed fold pipe and slide in the knock hole 21, this lining 4 and corresponding respectively protuberance 42 and the assembly opening of being convenient to install 13 (as shown in Figure 7) that be provided with of this beam tube 1 simultaneously

Also be provided with gag 5 between this lining 4 and this activity folded tube 3, this gag one end is provided with the mouth of pipe that dwindles of open slot 51, be convenient to be installed in this lining 4, and the other end is provided with the annular groove 52 (as Fig. 4 and shown in Figure 6) of ccontaining these activity folded tube 3 mouths of pipe of energy.Can certainly, this gag one end is provided with the annular groove of ccontaining these lining 4 mouths of pipe of energy, and the other end is provided with the mouth of pipe that dwindles of open slot, is convenient to be installed in this activity folded tube 3 (as shown in Figure 5 and Figure 6).

As shown in Figure 4 and Figure 5, this clamping mechanism passes the adjusting bolt 15 of this group lug 14, the transverse axis 16 that is fixed in this adjusting bolt end and end rotational fixation by one group of lug 14, activity being located at these beam tube 1 upper shed groove both sides and forms in the spanner 17 of this transverse axis 16, the end outer rim of this spanner 17 is the eccentric cam shape, and these adjusting bolt 15 other ends are rotated with setting nut 18.

Certainly this clamping mechanism also can be by one group of lug being located at these beam tube upper shed groove both sides side by side, pass the set screw of this group lug and be rotated with and form in the setting nut of this set screw.

When this bundle clamp mechanism was applied to folding bicycle, this fixed fold pipe and activity folded tube are respectively formed the two folding pipe fittings of going up pipe in the folding bicycle.During current, trailing wheel doubling, go up fold mechanism (as describing in the background technology) by pipe under the folding bicycle on the one hand, realize folding, also realized folding effect by the bundle clamp mechanism on the pipe on the folding bicycle on the other hand, by the design of such twofold mechanism, make folding bicycle folding freely, safe and reliable by bike.

Claims

1. restraint substructure for one kind, be installed on two folding pipe fitting connecting portions, it is characterized in that, comprise have open slot (11) beam tube (1), can extend into fixed fold pipe (2) and activity folded tube (3) in this beam tube (1) two ends respectively, the open slot of this beam tube (11) is provided with the clamping mechanism of being convenient to this fixed fold pipe (2) of clamp fitting and activity folded tube (3), this fixed fold pipe (2) is provided with location notch hole (21) vertically, and this beam tube (1) is limited in the location notch hole (21) on this fixed fold pipe (2) by the set screw (12) that is rotated with and slides.

2. bundle substructure as claimed in claim 1, it is characterized in that, also wear a lining (4) between this beam tube (1) and this fixed fold pipe (2) with open slot (41), after this set screw (12) is fixed this beam tube and lining, be defined on this fixed fold pipe and slide in the knock hole (21).

3. bundle substructure as claimed in claim 2 is characterized in that, this lining (4) and corresponding respectively protuberance (42) and the assembly opening of being convenient to install (13) that be provided with of this beam tube (1).

4. bundle substructure as claimed in claim 2, it is characterized in that, also be provided with gag (5) between this lining (4) and this activity folded tube (3), this gag one end is provided with the mouth of pipe that dwindles of open slot (51), be convenient to be installed in this lining (4), and the other end is provided with the annular groove (52) of ccontaining this activity folded tube (3) mouth of pipe of energy.

5. bundle substructure as claimed in claim 2, it is characterized in that, also be provided with gag (5) between this lining (4) and this activity folded tube (3), this gag one end is provided with the annular groove of energy ccontaining this lining (4) mouth of pipe, and the other end is provided with the mouth of pipe that dwindles of open slot, is convenient to be installed in this activity folded tube (3).

6. bundle substructure as claimed in claim 1 or 2 is characterized in that, this clamping mechanism by one group of lug being located at these beam tube upper shed groove both sides side by side, pass the set screw of this group lug and be rotated with and form in the setting nut of this set screw.

7. bundle substructure as claimed in claim 1 or 2, it is characterized in that, this clamping mechanism passes the adjusting bolt (15) of this group lug (14), the transverse axis (16) that is fixed in this adjusting bolt end and end rotational fixation by one group of lug (14), the activity of being located at this beam tube (1) upper shed groove both sides and forms in the spanner (17) of this transverse axis (16), the end outer rim of this spanner (17) is the eccentric cam shape, and this adjusting bolt (15) other end is rotated with setting nut (18).

8. bundle substructure as claimed in claim 1 or 2 is characterized in that, this fixed fold pipe and activity folded tube are respectively forms the two folding pipe fittings of going up pipe in the folding bicycle.