CN2297141Y - Curtain rolling device - Google Patents

Abstract

The utility model relates to a curtain rolling device which comprises a winding drum which is erected on a fixing frame and is used for curtain rolling and a scrolling device for controlling the winding of the curtain, wherein, the scrolling device comprises a sleeve barrel, a bead chain, a positioning block and a shaft lever. One end shaft of the sleeve barrel is sheathed on the winding drum, and the other end of the sleeve barrel forms a clamping part and is driven by the bead chain to rotate synchronously with the winding drum. The positioning block is arranged between the sleeve barrel and the fixing frame and is limited and fixed on the fixing frame. A block body is provided with a positioning part which is correspondingly attached to the clamping part of the sleeve barrel. The shaft lever is assembled with the sleeve barrel and the positioning block, and is limited on the positioning block. The sleeve barrel is pushed and bunted towards the direction of the positioning block by a spring.

Description

Screen-roller

The utility model relates to a kind of screen-roller.

Screen-roller mainly is to do one with the projection cloth curtain of the curtain of what control heavy curtain shape or lantern slide to furl or the action of lowering, uses for the convenience of the users, has the effect of location usually.

Consult Fig. 1 and 2, a kind of screen-roller in the past mainly is to set up rotationally on what one fixed mount 21 for rolling up reel 12 two ends of establishing heavy curtain 11 one, only demonstrate the wherein winding relation of an end among the figure, wherein, fixed mount 21 can be installed near the what window or arbitrary appropriate location, by the heavy curtain 11 of control on this reel 12 down drawdown can form one and cover or, heavy curtain 11 can be scrolled up packet receiving when what does not use and cover on the what reel 12 for the plane of slideshow.The action that this heavy curtain 11 furls mainly is that mat one installing what fixed mount 21 is reached with the retracting device 3 of 12 on reel, and this retracting device 3 comprises a fixed axis 31, connect on a bulge loop 32 of establishing on what fixed axis 31 ora terminalis, the what bulge loop 32 that is pivoted and be arranged with on the rotating disk 34, connection what rotating disk 34 of protecting cover 33 and the energy-stored spring 35 on the sheathed what fixed axis 31.In the hole clipping 23 of the limited block 22 of these bulge loop 32 mats one fixture block 36 inlay card what fixed mounts 21, and rotating disk 34 is coupling on the pivoted connection end 13 of the aforementioned reel 12 of what and can be subjected to reel 12 interlocks, in order to make heavy curtain 11 be stretched to the effect of required length Hou tool one location, corresponding what bulge loop 32 is equiped with a pair of buckling piece 37 on the what rotating disk 34, annular groove 321 toward bulge loop 32 on each buckling piece 37 convexes with a clamping part 371, and this annular groove 321 has a guide ramp 322 and a non-return plane 323.

Can spur heavy curtain 11 downwards during use, then reel 12 can drive rotating disk 34 and energy-stored spring 35 rotations, the clamping part 371 of buckling piece 37 can rotate along the non-return plane 323 and the surface of guide ramp 321 in regular turn, when stopping drag, when reel 12 is stopped operating, by gravitational effect, wherein the clamping part 371 of a buckling piece 37 can an annular groove 321 of chimeric what bulge loop 32 in and be subjected to non-return 323 block and can not deviate from, the location design of Here it is heavy curtain 11.This energy-stored spring 35 is when reel 12 scrollings, also store a back stretch along with rotation, just, when the 11 drop-down segment length of the heavy curtain on the reel 12 and when being positioning states, energy-stored spring 35 just can be accumulated a back stretch, and this moment is if spur reel 12 a little again, makes the clamping part 371 of buckling piece 37 deviate from the annular groove 321 of bulge loop 32, then the back stretch accumulated of energy-stored spring 35 will discharge, and the elastic force of this release can make reel 12 backward rotation and heavy curtain 11 is coated on the coiling what reels 12.

Though above-mentioned screen-roller in the past has the function that furls heavy curtain and location, but still have following shortcoming in the use:

1. structure is complicated: this in the past screen-roller be to rotate by the reel 12 that a rotating disk 34 drives a usefulness what coiling heavy curtain 11 to control furling of heavy curtain 11, and reel 12 what scrollings the time, this energy-stored spring 35 together is rotated, and when reel 12 stops operating, when making buckling piece 37 on the rotating disk 34 fasten in the annular groove 321 of these bulge loops 32 of what, rotating disk 34 stops operating with energy-stored spring 35, and heavy curtain 11 is stretched to required length Hou and is positioned, and energy-stored spring 35 is accumulated a back stretch.When buckling piece 37 breaks away from annular groove 321 again, energy-stored spring 35 stored back stretch will discharge and impel on the heavy curtain 11 coiling what reels 12, and its unitary construction is complicated, manufacturings in or cumbersome on assembling.

2. location action is difficult for really: by aforementioned the 1st as can be known, the rotation of this reel 12 is to drive by rotating disk 34, and rotating disk 34 stops its rotation by the grab of 321 of buckling piece 37 and annular grooves again, when heavy curtain 11 is stretched to a predetermined length and desire when location, the user is because of can't directly seeing the buckle situation of buckling piece 37 and annular groove 321, only can judge its whether buckle with sensation and experience, this phenomenon is easy to produce buckling piece 37 and does not fasten really with annular groove 321, but the user does not find the situation of just hand being decontroled, at this moment, the back stretch that energy-stored spring 35 is accumulated will make reel 12 backward rotation and make heavy curtain 11 coiling whats on it apace, therefore the action that must heavily heavy curtain 11 down be stretched again is so this positioning action action of screen-roller in the past is difficult for really.

3. service life is shorter: by aforementioned the 2nd as can be known described, this positioning action action of screen-roller in the past is difficult for really, easily the inaccurate heavy curtain 11 of drop-down one section predetermined length that makes of fastening because of 321 of buckling piece 37 and annular grooves furls coating what reel 12 once again, increase outside the puzzlement on using, more the strength that furls answer by its heavy curtain 11 of what is the back stretch that relies on this energy-stored spring 35, and the abrupt release speed of this back stretch is quite quick, even make heavy curtain 11 furl to such an extent that irregular generation damages easily.In addition, this buckling piece 37 is using Hou to produce wearing and tearing unavoidably for a long time and can't fasten really on the what annular groove 321, and therefore, the parts of this screen-roller in the past are fragile, are difficult for naturally service life prolonging.

The screen-roller that the purpose of this utility model provides a kind of simple structure, action is certain and parts are more not fragile and prolonged its service life.

The utility model is to form a main assembled portion and an assembled portion that is oppositely arranged on a fixed mount, set up a reel between this master, assembled portion, volume is established a heavy curtain on this reel, on reel, form a pivot end of a corresponding pivot joint with assembled portion, and a link corresponding with main assembled portion, be equiped with a rolling device between link and main assembled portion; Its feature is at what: this rolling device comprises:

One sleeve, it has a socket part that is coupling on the link of what reel, this socket part central authorities tool one axially extended axle, and the outer side of the outstanding what link of what forms a disc, between disc and socket part, form the neck that contracts in, run through an axial perforation on the what cylindrical shell, be equipped with the card article that majority is oppositely arranged on disc and the socket part, form a clip space between two relative card articles, deviate from neck one side on the what disc and be provided with a ring-type holding section;

One pelletron, it is striden on the neck of what sleeve, has the pearl body in most settings at interval and the ccontaining spacing what clip space on the pelletron;

A positioning block is arranged between the main assembled portion of sleeve and fixed mount, and is limited to be fixed on the main assembled portion, and its block central authorities run through and the axial corresponding assembly hole of the perforation of sleeve, on block and a location division of the corresponding applying with the holding section of sleeve of formation;

One axostylus axostyle, it passes the perforation of aforementioned axial correspondence and assembly hole and fixedly on the what locating piece, has to make the spring of sleeve toward the pushing and pressing of locating piece direction on the body of rod;

The forward and reverse pulling pelletron of mat can drive sleeve and reel folding or to put down heavy curtain together with reel, and when stopping drag pelletron, the holding section on the sleeve engages with the location division of locating piece and heavy curtain is located.

As shown in the above description, the utility model more in the past the person have more following advantage:

1. structure is simpler: in what the utility model, the sleeve that drives the reel rotation is on the direct axle sleeve what reel, and sleeve mat one spring is replaced toward the locating piece on the main assembled portion of a spacing what fixed mount, form the holding section and the location division of inlay card mutually on what sleeve and the locating piece more respectively, sleeve can be subjected to a pelletron interlock and drive reel to rotate relative to the what locating piece, by this can be in order to the heavy curtain on the reel spool, and when sleeve stops operating, this holding section and location division be clip and form a location effect mutually, so structure of the present utility model is simpler than in the past structure.

2. location action is more certain: by in above-mentioned the 1st as can be known; the structure of control reel scrolling is the holding section of this sleeve and the location division of locating piece; and but the holding section is to be designed to shrinkage pool, protruding grain or the fluted disc of inlay card mutually with the location division; by spring sleeve is replaced toward locating piece; can make holding section and location division securely chimeric; therefore, its location action is more certain.

3. service life is longer: the utility model drives sleeve and the forward and reverse rotation of reel by the pulling pelletron, to reach the effect that furls heavy curtain, the what volume is put the design of not accumulating bounce in the process of heavy curtain, can not cause the damage of member because of the elastic force abrupt release, simultaneously between the location division of the holding section of its sleeve and locating piece by replacing of spring can keep near state, not only have advantages of good positioning effect, can also increase the service life.

Below by Cui embodiment and accompanying drawing screen-roller of the present utility model is elaborated:

Fig. 1 is a kind of three-dimensional exploded view of screen-roller in the past.

Fig. 2 is the bulge loop of aforementioned screen-roller and the combination schematic diagram of rotating disk.

Fig. 3 is the three-dimensional exploded view of the utility model one than Cui embodiment.

Fig. 4 is the assembled sectional view of the utility model one than Cui embodiment.

Fig. 5 is the schematic diagram of the utility model one than its disc of Cui embodiment and the another kind of design of locating piece.

At first consult Fig. 3 and 4, screen-roller of the present utility model comprise a fixed mount 4, a reel 5 and a rolling device 6 than Cui embodiment.

These fixed mount 4 two ends are relatively set with a main assembled portion 41 and an assembled portion 42 in the form of annular discs downwards, corresponding respectively formation one breach 411 and is established hole 421 on master, the assembled portion 41,42, a retaining piece 412 again is pivoted on the what master assembled portion 41, this retaining piece 412 can main assembled portion 41 be a center of circle moving, so that cover to the direction of breach 411.

This reel 5 usefulness whats volume is established a heavy curtain 50 and is had a pivot end 51 and a link 52, this pivot end 51 has protruded out a short column 511, this short column 511 establishing in the hole 421 of what fixed mount 4 that be pivoted, and link 52 has a sleeve joint hole 521, what reel 5 internal faces also extend axially three raised lines 522.

41 of the link 52 of these rolling device 6 assembling what reels 5 and the main assembled portion of fixed mount 4 comprise a sleeve 61, a pelletron 62, a positioning block 63 and an axostylus axostyle 64.

This sleeve 61 has a socket part 611 of link 52 that is coupling the aforementioned reel 5 of what, socket part 611 outside wall surface are concaved with three caulking grooves 612 that can supply aforementioned three raised lines 522 to be embedded, central authorities have an axle 613, then form a disc 614 away from reel 5 one ends, the perforation 615 of this axle 613 is run through in these disc 614 central authorities toward the direction formation one of socket part 611, a neck 616 that inwardly contracts in 611 of disc 614 and socket parts and tool footpath, and correspondingly again on disc 614 and the socket part 611 corresponding walls be convexly equipped with most the spaced card articles 617 of ring-type, 618, but adjacent in twos card article 617 on what disc 614 and the socket part 611 by this, 618 form a clip space 619, disc 614 opposite sides encircle along its periphery again and establish a ring holding section 610, what is originally than among the Cui embodiment, and this holding section 610 is most spaced circular shrinkage hole of ring-type.

This pelletron 62 is striden on the neck 616 of what sleeve 61, pelletron be provided with most be provided with at interval and can ccontaining spacing what clip space 619 in pearl body 621.

This locating piece 63 is folded in 41 of the main assembled portion of sleeve 61 and fixed mount 4, the holding section 610 of the corresponding what disc 614 in its block one side forms a location division 631 corresponding with it, what is originally than among the Cui embodiment, but this location division 631 is the round convex grains in this holding section 610 of a plurality of inlay card whats, opposite side forms the inlay card portion 632 in the breach 411 that can be embedded what master assembled portion 41, central then run through one with the perforation 615 axial corresponding assembly holes 633, this assembly hole 633 is designed to two-period form, is respectively rectangular second section 635 in cross section rounded first section 634 and cross section.

These axostylus axostyle 64 two ends are respectively a connection terminal 642 and a positive stop end 643 that is the square shape that is concaved with annular groove 641, this connection terminal 642 can pass the assembly hole 633 and perforation 613 of axial correspondence, an and spring 644, be the retaining element 645 of a C shape clasp in the mat one what present embodiment again, in the inlay card what annular groove 641, make this spring 642 with the direction pushing and pressing of sleeve 61 toward locating piece 63, make sleeve 61 and locating piece 63 keep the state of fitting, this positive stop end 643 is in second section 635 of ccontaining what assembly hole 633, can make axostylus axostyle 64 and locating piece 63 mutual clampings by this.

During assembling, earlier on the link 52 with rolling device 6 assembling what reels 5, again the short column 511 of reel 5 and the inlay card portion 632 of locating piece 63 are embedded establishing in hole 421 and the breach 411 of what fixed mount 4 in regular turn, again retaining piece 412 is turned to breach 411 places breach 411 is covered, drop out from breach 411 with the connection terminal 642 of avoiding axostylus axostyle 64.

During use, can spur pelletron 62, mat pelletron 62 drives sleeve 61 interlock reels 5 and rotates, and heavy curtain 50 rolling off reels 5 is opens wide the lowering shape.Sleeve 61 is in the process of scrolling, holding section 610 on the sleeve 61 is constantly with location division 631 inlay cards of locating piece 63 and promptly break away from and produce continuity clip sound, when stopping drag pelletron 62, sleeve 61 stops operating with reel 5, holding section 610 is the position that stops the mutual inlay card of what with location division 631, can make heavy curtain 50 open wide the state that stretching enters the location by this.If oppositely spur pelletron 62, then reel 5 is backward rotation with sleeve 61 and heavy curtain 50 is reeled gradually and is the state of furling on the what reel 5, certainly, in the process that furls, as long as stop drag pelletron 62, equally also can make the location division 631 of locating piece 63 be positioning states with the holding section 610 mutual inlay cards of sleeve 61.What this will be illustrated be, though design of the present utility model oppositely pulling pelletron 62 just can make on the heavy curtain 50 coiling what reels 5, the action of right its pulling pelletron 62 simply and can be not as described above in the past screen-roller, though heavy curtain is furled on the what reel automatically, the moment bounce that discharges because of spring causes damage to other members easily.

Consult Fig. 5 again, it is the design aspect of another sleeve 61 ' of present embodiment and locating piece 63 ', it is textural roughly as hereinbefore, the holding section 61 ' of different is this sleeve 61 ' and the location division 631 ' of locating piece 63 ' are to be designed to the fluted disc shape that can be meshed, and it equally also has the effect of location.

Claims (4)

1. screen-roller, comprise a fixed mount, a reel and a rolling device, on this fixed mount, form a main assembled portion and an assembled portion that is oppositely arranged, this reel is arranged between this master, assembled portion and establishes a heavy curtain for volume, on reel, form a pivot end of corresponding pivot joint with assembled portion, and a link corresponding with main assembled portion, this rolling device is provided with between what link and main assembled portion; Its feature is at what:

This rolling device comprises a sleeve, a pelletron, a positioning block and an axostylus axostyle, wherein:

This sleeve has the socket part on the link of the what reel that is coupling, the axially extended axle of this socket part central authorities' tool, and the outer side of the outstanding what link of what forms a disc, a neck that contracts between disc and socket part, forming, has an axial through bore that runs through on the what cylindrical shell, the position is equipped with the most card articles that are oppositely arranged on what disc and the socket part, forms a clip space between two relative card articles, and a side ring that deviates from neck on the what disc is provided with one and encircles the holding section;

This pelletron is striden on the neck of what sleeve, and the most pearl bodies in the ccontaining spacing what clip space are set on the serobila at interval;

This locating piece is folded between the main assembled portion of sleeve and fixed mount, and is limited to be fixed on the main assembled portion, and its block central authorities run through and the axial corresponding assembly hole of the perforation of sleeve, on block and a location division of the corresponding applying with the holding section of sleeve of formation;

This axostylus axostyle passes the perforation of aforementioned axial correspondence and assembly hole and fixedly on the what locating piece, on the what body of rod and assembling with the spring of sleeve toward the pushing and pressing of locating piece direction.

2. according to the described screen-roller of claim 1, its feature is at what: this holding section and location division be annular arrangement and mutually most shrinkage pools of inlay card with protruding.

3. according to the described screen-roller of claim 1, its feature is at what: this holding section and location division are annular arrangement and the most double wedges and the chase of inlay card mutually.

4. according to the described screen-roller of claim 1, its feature is at what: the main assembled portion of this fixed mount has a fixed block, fixed block is provided with a breach, and is pivoted and a retaining piece of the involutory what breach that can pivot mutually with fixed block, and the inlay card portion of this locating piece is embedded in this breach of what.

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