CN205891066U - Improvement structure of collapsible auxiliary seat - Google Patents

Abstract

The utility model provides an improvement structure of collapsible auxiliary seat is by main saddle bracket, goes up connecting rod, auxiliary seat pole, connecting rod composition four -bar linkage down, is equipped with the spring catch at the tip of auxiliary seat pole, is equipped with the locating hole at the tip of last connecting rod, and this spring catch can pass this locating hole, makes this four -bar linkage card die at supported condition. When the utility model discloses need only need to extract this spring catch when folding, make it break away from this locating hole, can make this four -bar linkage can free activity. Therefore, the utility model discloses support reliable, folding convenience, have the significant progress.

Description

The improved structure of foldable counter-base

Technical field

This utility model is related to the foldable counter-base structure of bicycle, electric bicycle, motorcycle, particularly to small electrical The foldable counter-base structure of dynamic bicycle.

Background technology

It is all to be made using heavy rear clothes hanger on present bicycle, Moped Scooter, electric bicycle, Segway Human Transporter For counter-base, its structure bulky, it is impossible to fold, does not have comfort level.

For this reason, applicant in this case once submitted front case application to, obtain the Chinese utility model that notification number is 201989887u special Profit authorizes.In front case, with main seat support, upper quarter butt, upper stock, lower quarter butt, lower stock composition five-bar mechanism, upper short Between bar, upper stock, it is respectively provided with Quick Release and lower quarter butt, lower stock between, by the limit function of Quick Release, by upper stock Counter-base is fixed.

However, the Quick Release in front case is to be formed spacing by frictional force, inevitably there is restraining ability limited Deficiency, when the occupant's body weight on counter-base is excessive, or runs into bumpy sections, Quick Release is possible to failure of removal, leads to endanger Danger occurs.

Content of the invention

For the deficiencies in the prior art, the purpose of this utility model is: a kind of improved structure of foldable counter-base is provided, Solve the problems, such as easily to lose efficacy present in prior art.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of improved structure of foldable counter-base it is characterised in that: by main seat support, upper connecting rod, counter-base bar, lower link Composition quadric chain, is provided with spring catch in the end of counter-base bar, is provided with location hole in the end of upper connecting rod, this spring catch can Through this location hole, make this quadric chain stuck in holding state.

The improved structure of described foldable counter-base, wherein: counter-base bar is two-piece type structure can be in a folded configuration It is clipped in the both sides of lower link.

The improved structure of described foldable counter-base, wherein: two ends of this upper connecting rod are equipped with this location hole, and Two location holes are in different phase angles with respect to pivot hole corresponding in upper connecting rod.

Compared with prior art, had advantages in that using this utility model of technique scheme and adopt spring Shearing force between pin and location hole is replacing frictional force it is not easy to disabled status；And, a spring catch is compared to two Individual Quick Release, more easy in operation, laborsaving.

Brief description

Fig. 1 is the schematic diagram under holding state for the improved structure of the foldable counter-base that this utility model provides；

Fig. 2 is the improved structure schematic diagram in a folded configuration of the foldable counter-base that this utility model provides；

Fig. 3 is the planar structure schematic diagram of the upper connecting rod of the improved structure of foldable counter-base that this utility model provides.

Description of reference numerals: support 1；Upper connecting rod 2；Pivot hole 21；Counter-base bar 3；Lower link 4；Spring catch 5；Location hole 6；Secondary Seat 7；The seat of honour 8.

Specific embodiment

As shown in figure 1, being the schematic diagram under holding state for the improved structure of the foldable counter-base that this utility model provides, It forms quadric chain by main seat support 1, upper connecting rod 2, counter-base bar 3, lower link 4, is provided with spring in the end of counter-base bar 3 Pin 5, is provided with location hole 6 (as shown in Figure 3) in the end of upper connecting rod 2, passes through location hole 6 by spring catch 5, makes this double leval jib machine Structure stuck in holding state.

When this utility model needs to fold it is only necessary to extract this spring catch 5 so as to depart from this location hole 6, you can make this Quadric chain can be freely movable, and now, as shown in Fig. 2 lower link 4 is posted by main seat support 1 upwards, counter-base bar 3 is Two-piece type structure is simultaneously clipped in the both sides of lower link 4, thus the space taking after saving folding.

As shown in figure 3, the two of this upper connecting rod 2 ends are equipped with this location hole 6, and two location holes 6 are with respect to right The pivot hole 21 answered is in different phase angles, and this is the needs in order to exchange counter-base front and back position.Shown in above-mentioned Fig. 1, Fig. 2 In embodiment, counter-base 7 is located at the rear of the seat of honour 8, and the gradient forward that now counter-base 7 has in itself can make occupant before vehicle It is not easy during entering to drop backward, and when counter-base 7 is installed to the seat of honour 8 front, if the location hole before still continuing to use 6, The gradient backward that then counter-base 7 has then will make occupant have the risk dropping, and uncomfortable, at this point it is possible to connect on exchanging The closure of bar 2, is connected with spring catch 5 with another location hole 6, and this another location hole 6 then can make to be arranged on front Counter-base 7 has gradient forward.Therefore, this utility model can as needed, by counter-base 7 be arranged on the seat of honour 8 front or Rear.

Described above be merely exemplary for this utility model, and nonrestrictive, those of ordinary skill in the art Understand, in the case of the spirit and scope being limited without departing from claim, can many modifications may be made, change or equivalent, but Fall within protection domain of the present utility model.

Claims (3)

1. a kind of improved structure of foldable counter-base it is characterised in that: by main seat support, upper connecting rod, counter-base bar, lower link group Become quadric chain, be provided with spring catch in the end of counter-base bar, be provided with location hole in the end of upper connecting rod, this spring catch can be worn Cross this location hole, make this quadric chain stuck in holding state.

2. foldable counter-base according to claim 1 improved structure it is characterised in that: counter-base bar be two-piece type structure simultaneously The both sides of lower link can be clipped in a folded configuration.

3. foldable counter-base according to claim 1 improved structure it is characterised in that: two ends of this upper connecting rod are equal It is provided with this location hole, and two location holes are in different phase angles with respect to pivot hole corresponding in upper connecting rod.