CN205804807U - Loft stretches the PVC handrail of stair - Google Patents

Abstract

The utility model discloses a kind of loft to stretch the PVC handrail of stair, the stretch PVC handrail of stair of this loft includes fork, gag lever post and armrest assembly, two adjacent described ladders connect between pin joint expansion link, described gag lever post is connected with described expansion link, described gag lever post crosses vertical pin joint vertical described expansion link upwards, the end of described gag lever post is connected with armrest assembly, one end of described fork with described under vertical pin joint hinged, the other end is hinged with handrail away from gag lever post；There is whole-process automatic coordinated signals, simple to operate, easy to use, significantly increase the safety of flexible stair, too increase the decorative effect of stair.

Description

Loft stretches the PVC handrail of stair

Technical field

This utility model relates to balustrade field, the PVC handrail of the stair that stretch particularly to a kind of loft.

Background technology

Along with the development of building trade, the constant tension of Housing resource, and the demand of the novel living environment of people, Either the house general layout of small apartment or the compound loft of big-room and luxury housing project is increasingly favored by people；General between main chamber and loft Being to be connected by stair, and stair can take up room to a certain extent, the utilization rate in space is needed by especially small apartment Proposing higher requirement, the most scalable stair are increasingly welcome by people, even for loft compound to big-room and luxury housing project, The stair of automatic telescopic are full of science and technology sense, and whole situation serves the decoration atmosphere of advanced person.

Authorization Notice No. is that the Chinese patent of CN20494072U discloses a kind of loft and stretches stair, changes loft and automatically stretches Contracting stair include, the fixed mount and the one end that are embedded in loft mouth four edge are flexibly connected and the extension ladder on fixed mount, Gu Determine to be provided with between frame and extension ladder to make stretching and can be folded in the telescopic component in fixed mount；When entering loft, put down extension ladder, from Pack up extension ladder after opening loft, i.e. add convenience and saved again space；

Being in place of the deficiencies in the prior art, flexible stair do not have a handrail when forming stair after the stretch, and general loft And the difference in height between main chamber is between 1.8m ~ 2.5m, people upstairs during there is certain potential safety hazard.

Utility model content

The purpose of this utility model is to provide a kind of loft and stretches the PVC handrail of stair, and which solving telescopic staircase does not has The security hidden trouble that handrail is brought.

Above-mentioned technical purpose of the present utility model has the technical scheme that

A kind of loft stretches the PVC handrail of stair, and including side frame, described side frame includes multiple Crossware, described Crossware And hinged between adjacent Crossware, described Crossware includes two hinged crossbars, it is characterized in that: include fork, spacing Bar and armrest assembly, the hinged place of described crossbar is terraced to pin joint, and the pin joint of two described Crosswares is vertical hinged Point, described vertical pin joint be respectively from bottom to top under vertical pin joint and upper vertical interface point, two adjacent described ladders to Connecting between pin joint has expansion link, described gag lever post to be connected with described expansion link, and vertical pin joint crossed by described gag lever post And vertical described expansion link is upwards, the end of described gag lever post is connected with armrest assembly, and one end of described fork is sagging with described Hinged to pin joint, the other end is hinged with handrail away from gag lever post.

Using said structure, Crossware is that draw-ring type stretches the structure of stair, and on the one hand the connection of expansion link can increase The stability of flexible stair, on the other hand provides suitable fixed position to gag lever post, and gag lever post reduces for flexible friendship The impact of fork itself；When flexible stair are from contraction state, upper vertical pin joint and under vertical pin joint be in farthest shape State, now the pin joint of fork and drive rod is in minimum state, and now armrest assembly is perpendicular to ladder to the line of pin joint And shrink stacking；When flexible stair use, along with the stretching of flexible stair, upper vertical pin joint and under vertical pin joint away from From drawing in, fork moves up relative to gag lever post with the interface point of handrail, and due to armrest assembly and the hinged company of gag lever post Connecing, and gag lever post position is fixed, handrail can only rotate around the pin joint of gag lever post with handrail, actively promotes armrest assembly to rotate, Until armrest assembly is spliced into the complete balustrade of a whole piece and is parallel to ladder to the line of pin joint, whole-process automatic linkage control System, simple to operate, easy to use, significantly increase the safety of flexible stair, too increase the decorative effect of stair.

More preferably: on the described crossbar at described vertical pin joint, be provided with the first sleeve, described flexible Being provided with the second sleeve on bar, described gag lever post is fixed through the first sleeve and the second sleeve.

Use said structure, can effectively prevent from producing between gag lever post and Crossware in the way of sleeve interfering, and Sleeve can preferably keep the vertical direction of gag lever post, and sleeve is quick detachable, adds the interchangeability of mechanism, it is simple to dismounting.

More preferably: on described armrest assembly, be provided with the inclined-plane of mutually splicing.

Using said structure, handrail, can be different due to the level of stretch of part draw unit when stair stretching uses And cause producing interference between the armrest assembly of correspondence or there is bigger splicing gap, and arranging of inclined-plane can effectively make Must splice tightr.

More preferably: described armrest assembly is made up of PVC material.

Using said structure, PVC balustrade has the lines of natural timber, color；Soft and graceful smooth, light weight is tough and tensile, firmly Degree height, nail-holding ability is strong；Dampproof protection against insects, anticorrosive.Compared with wood balustrade, PVC handrail has can fixation, sizing Processing, the most disposable direct forming, and its price is much lower, has high cost performance.

More preferably: the cross sectional shape of described armrest assembly is mushroom.

Using said structure, mushroom handrail has the cambered surface being easy to hold, can be more square when there is emergency Just crawl.

In sum, this utility model has the advantages that.

Whole-process automatic coordinated signals, simple to operate, easy to use, significantly increase the safety of flexible stair, also increase Add the decorative effect of stair.

Accompanying drawing explanation

Fig. 1 is the handrail overall structure schematic diagram being contained on extension ladder of the present embodiment；

Fig. 2 is the side view of Fig. 1 of the present embodiment；

Fig. 3 is the individual unit armrest schematic diagram of the present embodiment；

Fig. 4 is the armrest schematic diagram of the present embodiment；

In figure, 1. Crossware；2. fork；3. gag lever post；6. handrail；11. crossbars；12. times vertical pin joints, on 13. Vertical pin joint；14. ladders are to pin joint.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Embodiment 1: loft stretches the PVC handrail 6 of stair, and as Figure 1-3, including side frame, side frame includes multiple intersection Part 1, hinged between Crossware 1 and adjacent Crossware 1, Crossware 1 includes two hinged crossbars 11, the hinge of crossbar 11 Meeting place for ladder to pin joint 14, the pin joint of two Crosswares 1 is vertical pin joint, under vertical pin joint is respectively from bottom to top Vertical pin joint 12 and upper vertical interface point, extension ladder achieves the flexible of stair by the distance controlling each pin joint；Two Adjacent ladder connects between pin joint 14 has expansion link, expansion link to play reinforcing expansion bracket and the work as fixed pivot With, the crossbar 11 at vertical articulation point being provided with the first sleeve, expansion link is provided with the second sleeve, gag lever post 3 passes First sleeve and the second sleeve are fixed；The end of gag lever post 3 is connected with armrest assembly 6, one end of fork 2 with under vertical pin joint 12 is hinged, and the other end is hinged with handrail away from gag lever post；The inclined-plane of mutually splicing it is provided with on armrest assembly 6.

When flexible stair are from contraction state, upper vertical pin joint 13 and under vertical pin joint 12 be in farthest state, Now the pin joint of fork 2 and drive rod is in minimum state, and now handrail 6 assembly is perpendicular to ladder to the line of pin joint 14 And shrink stacking；When flexible stair use, along with the stretching of flexible stair, upper vertical pin joint 13 and under vertical pin joint 12 Distance draw in, fork 2 moves up relative to gag lever post 3 with the interface point of handrail 6, and owing to handrail 6 assembly is with spacing Bar 3 is articulated and connected, and gag lever post 3 position is fixed, and handrail 6 can only rotate around the pin joint of gag lever post 3 with handrail 6, actively promotes Handrail 6 assembly rotates, until handrail 6 assembly is spliced into the complete balustrade of a whole piece 6 and is parallel to ladder to pin joint 14 Line, whole-process automatic coordinated signals, simple to operate, easy to use, significantly increase the safety of flexible stair.

Claims (5)

1. loft stretches a PVC handrail for stair, and including side frame, described side frame includes multiple Crossware (1), described Crossware (1) and hinged between adjacent Crossware (1), described Crossware (1) includes two hinged crossbars (11), it is characterized in that: Including fork (2), gag lever post and armrest assembly, the hinged place of described crossbar (11) is terraced to pin joint (14), described in two The pin joint of Crossware (1) is vertical pin joint, described vertical pin joint from bottom to top be respectively under vertical pin joint (12) and Upper vertical interface point, two adjacent described ladders connect between pin joint (14) expansion link, and described gag lever post (3) is with described Expansion link connects, and described gag lever post (3) crosses vertical pin joint (13) vertical described expansion link upwards, described gag lever post (3) end is connected with armrest assembly (6), one end of described fork (2) with described under vertical pin joint (12) hinged, the other end Hinged with handrail away from gag lever post.

Loft the most according to claim 1 stretches the PVC handrail of stair, it is characterized in that: described vertical pin joint (13) Being provided with the first sleeve on the described crossbar (11) at place, described expansion link is provided with the second sleeve, described gag lever post (3) is worn Cross the first sleeve and the second sleeve is fixed.

Loft the most according to claim 1 stretches the PVC handrail of stair, it is characterized in that: described armrest assembly (6) is upper to be arranged There is the inclined-plane of mutually splicing.

Loft the most according to claim 1 stretches the PVC handrail of stair, it is characterized in that: described armrest assembly (6) is by PVC Material is made.

Loft the most according to claim 1 stretches the PVC handrail of stair, it is characterized in that: the cross section of described armrest assembly (6) It is shaped as mushroom.