CN109330336A

CN109330336A - A kind of Window curtain structure

Info

Publication number: CN109330336A
Application number: CN201811485023.0A
Authority: CN
Inventors: 辛秀
Original assignee: 辛秀
Current assignee: Tongling Huize Technology Information Consulting Co.,Ltd.
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2019-02-15
Anticipated expiration: 2038-12-06
Also published as: CN109330336B

Abstract

The present invention provides a kind of Window curtain structures, including cross bar and be respectively arranged in the cross bar both ends front tension bar and back stay, be installed at the top of the cross bar top plate, be installed on the multiple groups rolling member of the cross bar and be installed on the casement of the multiple groups rolling member, the casement side end is equipped with magnetic stripe, and the mounting of roof plate has multiple groups limiting device.The present invention has the advantages that structure is simply and easy for installation, it is obliquely installed by motor driven curtain rod, casement can be made to move back and forth along curtain rod, and then realize automatically taking down the exhibits for curtain, compared to traditional electric curtain structure, it is quick to have the advantages that curtain is taken down the exhibits, the reliability of device is significantly greatly increased in less driving chain structure, its service life is improved, noise, and easy to repair and maintenance are reduced.

Description

A kind of Window curtain structure

Technical field

The present invention relates to field of sanitary equipment, specifically a kind of Window curtain structure.

Background technique

Curtain can play shading, protection privacy and decoration functions as articles indispensable in home life.It is existing There is market sale curtain type more diversified, and with the development of science and technology electrically driven curtain market occupancy volume is also gradually increasing, Have many advantages, such as easy to use and intelligent.The existing main driving method of electrically driven curtain is passed through by motor driven rope sheave The rope group being wrapped on rope sheave back and forth pulls casement one end to realize that curtain is taken down the exhibits；Another normal method is direct by motor Driving rubber tire or gear back and forth pull curtain one end to realize that curtain is taken down the exhibits on the track of curtain rod, but both the above driving side Formula has the following disadvantages, rope group driving method: one, rope group and rope sheave winding installation are complicated, need certain installation space； Two, the aging of rope group, which causes winding to loosen, causes transmission efficiency to reduce, and noise increases, and repairs trouble after the fracture of rope group；Rubber tire Or gear and orbit form drive, driving motor rotational time is long, and noise is larger, and rubber tire aging and gear lubrication need through Often maintenance, wherein rubber tire transmission efficiency is lower, and the rack gear manufacturing cost on gear and track is higher, and power supply lays complexity, therefore, In view of above-mentioned, a kind of Window curtain structure is provided and solves above-mentioned deficiency.

Summary of the invention

The technical problem to be solved by the present invention is casement can be made along curtain by motor driven curtain rod slant setting Bar is mobile to its two sides, and then realizes taking down the exhibits for curtain by electronic mode, and there is easy for installation, curtain to take down the exhibits fast and just In maintenance the advantages of.

The technical solution adopted by the present invention to solve the technical problems is:

A kind of Window curtain structure is provided, including cross bar and is respectively arranged in the front tension bar and back stay, peace at the cross bar both ends Loaded at the top of the cross bar top plate, be installed on the multiple groups rolling member of the cross bar and be installed on the window of the multiple groups rolling member Cord, the casement side end are equipped with magnetic stripe, and the mounting of roof plate has multiple groups limiting device；

Described front tension bar one end and back stay one end are individually fixed in wall, and are articulated with the cross bar by pin shaft respectively Both ends, the multiple groups limiting device equal part are installed at the top of the top plate, described in rolling member described in every group rolls be installed on respectively In cross bar, and bottom end is extended across to the cross bar bottom, and the casement top is evenly distributed to be equipped with multiple groups mounting ring, The casement is connected to the rolling member bottom end by multiple groups mounting ring, and the magnetic stripe is that muti-piece magnet is constituted and along described The suture installation of casement side end；

The front tension bar includes the motor that the first nail-plate and connection first nail-plate of wall are fixed on by swell fixture, It is connected to the motor output shaft end and is articulated with the first connecting rod of described cross bar one end by the pin shaft；

The back stay include the second nail-plate and be connected to the second connecting rod of second nail-plate, one end is connected to described Two connecting rods and the other end are articulated with the third connecting rod of the cross bar other end by the pin shaft；

Offer inverted draw cut at the top of the cross bar, the inverted draw cut bottom offers step kerve, the cross bar bottom offer with The cunning mouth of the kerve perforation；

The rolling member include the first idler wheel and with first idler wheel coaxial arrangement the second idler wheel and second bearing, it is described Second bearing is to roll ball-type bearing, and the second bearing is installed on first idler wheel, and second idler wheel is fastened on described First idler wheel side, and the second bearing is installed between first idler wheel and the second idler wheel, the second bearing with It is respectively provided with interstitial structure between first idler wheel and the second idler wheel, first idler wheel and the second idler wheel, which pass through, to be mutually spirally connected Cheese head screw and cheese head screw are fixed, and the second bearing is equipped with jacket；

The rolling member is installed in the inverted draw cut, and first idler wheel and the second idler wheel bottom end profile roll be set to institute respectively It states in kerve, the jacket passes through the sliding mouth and extends on the outside of cross bar and connect by mounting ring with the casement；

The top plate includes cover board and the first bolt for being installed on the cover board, and the cover board end face is provided with protrusive board, and Offer the first mounting hole of multiple groups on the protrusive board, first mounting hole is through the cover board and protrusive board, every group of institute It states and is separately installed with the limiting device in the first mounting hole, the limiting device includes electromagnet and adsorbed by electromagnet Bolt and for the bolt reset spring, further include for arranging the electromagnet, bolt and the shell of spring, it is described Limiting device is bolted in first mounting hole by the screw thread of the outer casing end, and the bolt may extend to inverted draw cut It is interior；

First bolt-through is bolted in the cover board and protrusive board, and the deck side edge is equipped with the second bolt of multiple groups；Institute State that cover board is installed at the top of the cross bar by second bolt of multiple groups and the protrusive board is fastened at the inverted draw cut notch, First idler wheel and the second idler wheel top profile roll respectively is set to the protrusive board two sides, realizes the first idler wheel and the second rolling The guide-localization of wheel.

Preferably, first nail-plate is provided with the first spy axis perpendicular to metope direction, described first, which visits shaft end portion, leads to It crosses first bearing vertically and is rotationally connected with the motor side end, realize the first rotation connection for visiting axis and motor；It is described Motor output shaft end is drive screw, and the first connecting rod is tubular structure, and end is provided with and the drive screw The nut of mating connection be placed in motor output shaft can in first connecting rod, and the drive screw and the nut are constituted and passed Dynamic pair；It is adjusted by motor output shaft rotation and is coupled length with first connecting rod, connects cross bar and first connecting rod It connects end and carries out reciprocally swinging.

Preferably, second nail-plate is provided with the second spy axis perpendicular to metope direction, described second, which visits shaft end portion, hangs down Direct join and can be rotated is connect with second connecting rod, and the third connecting rod is tubular structure, and second connecting rod can stretch Contracting is installed in the connecting rod.

Preferably, the first spy axis and the second spy axis can stretch along its axis direction, axis is visited by first Axis telescopic adjustment is visited with second, the mounting distance of cross bar to wall is adjusted.

Preferably, first idler wheel end face is provided with spindle nose, the spindle nose root is provided with first shoulder, described Second wheel is provided with central siphon, and the central siphon root is provided with the second shoulder, and the second bearing inner ring is set in the spindle nose, institute It states central siphon to be inserted into the spindle nose, and the second bearing inner ring is clamped between the first shoulder and the second shoulder, institute The outer diameter for stating first shoulder and the second shoulder is respectively less than or is equal to second bearing inner ring outer diameter, can make outside second bearing Enclose end and generate interstitial structure with the end face of the first idler wheel and the second idler wheel respectively, realize each idler wheel with second bearing outer ring it Between relative rotation, the cheese head screw and cheese head screw respectively penetrates the spindle nose and central siphon is spirally connected.

Preferably, the jacket includes being wrapped in the upper jacket of the second bearing outer ring and being connected to the upper packet Cover end and the installation set extended to the second bearing outside, the installation set end is equipped with hanging rod, the peace It fills ring set and is loaded on the hanging rod, upper jacket non-fully wraps up second bearing outer ring, and then can realize jacket and installation Set is integrated sheet metal component.

Preferably, be respectively arranged with multiple groups hook plate at the upper jacket both sides of the edge, the hook plate is perpendicular on described Jacket peripheral wall and the side end face for being arranged in the second bearing outer ring can realize jacket and second bearing along its axis by hook plate The positioning in line direction.

Preferably, the bolt of first bolt and limiting device may extend to first idler wheel and respectively It between second wheel and may extend on the outside of the jacket, can realize that rolling member is determined in inverted draw cut by bolt and the first bolt The braking of the first idler wheel and the second idler wheel is realized in position.

Preferably, the bolt peripheral wall is arranged with elastic sleeve structure.

The invention has the advantages that the present invention has the advantages that structure is simply and easy for installation, pass through motor driven window Curtain rod is obliquely installed, and casement can be made to move back and forth along curtain rod, and then realizes automatically taking down the exhibits for curtain, compared to tradition Electric curtain structure, have the advantages that curtain is taken down the exhibits quick, the reliability of device is significantly greatly increased in less driving chain structure, improves Its service life reduces noise, and easy to repair and maintenance.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is totality schematic view of the front view provided by the embodiment of the present invention；

Fig. 2 is totality schematic perspective view provided by the embodiment of the present invention；

Fig. 3 is the decomposition texture schematic diagram of Fig. 2；

Fig. 4 is complete section structural schematic diagram at the A-A of Fig. 1；

Fig. 5 is enlarged structure schematic diagram at the V of Fig. 2；

Fig. 6 is enlarged structure schematic diagram at the W of Fig. 2；

Fig. 7 is cross bar schematic view of the front view provided by the embodiment of the present invention；

Fig. 8 is complete section structural schematic diagram at the B-B of Fig. 7；

Fig. 9 is top plate schematic perspective view provided by the embodiment of the present invention；

Figure 10 is rolling member schematic perspective view provided by the embodiment of the present invention；

Figure 11 is the decomposition texture schematic diagram of Figure 10；

First idler wheel schematic perspective view provided by Figure 12 embodiment of the present invention；

In figure: 100. cross bars, 101. inverted draw cuts, 102. kerves, 103. sliding mouths, 200. front tension bars, 210. first nail-plates, 211. first Axis is visited, 220. first bearings, 230. motors, 240. first connecting rods, 300. back stays, 310. second nail-plates, 311. second visit Axis, 320. second connecting rods, 330. third connecting rods, 400. top plates, 410. cover boards, 411. protrusive boards, 412. first mounting holes, 420. First bolt, 430. second bolts, 500. limiting devices, 600. casements, 601. mounting rings, 700. magnetic stripes, 800. rolling members, 810. first idler wheels, 811. spindle noses, 812. first shoulders, 820. second idler wheels, 821. central siphons, 822. second shoulders, 830. Two bearings, 840. jackets, jacket on 841., 842. installation sets, 843. hook plates, 844. hanging rods, 850. cheese head screws, 860. round ends Nut, 900. pin shafts.

Specific embodiment

Above scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating The present invention is not intended to limit the scope of the invention.Implementation condition used in the examples can be done according to the condition of specific producer into One successive step, the implementation condition being not specified are usually the condition in routine experiment.

As shown in Fig. 1-Figure 12, Fig. 1 is totality schematic view of the front view provided by the embodiment of the present invention, and Fig. 2 is this hair Totality schematic perspective view provided by bright embodiment, Fig. 3 are the decomposition texture schematic diagrams of Fig. 2, and Fig. 4 is complete at the A-A of Fig. 1 Structural schematic diagram is cutd open, Fig. 5 is enlarged structure schematic diagram at the V of Fig. 2, and Fig. 6 is enlarged structure schematic diagram at the W of Fig. 2, and Fig. 7 is this Cross bar schematic view of the front view provided by inventive embodiments, Fig. 8 are complete section structural schematic diagrams at the B-B of Fig. 7, and Fig. 9 is this hair Top plate schematic perspective view provided by bright embodiment, Figure 10 are that rolling member stereochemical structure provided by the embodiment of the present invention is shown It is intended to, Figure 11 is the decomposition texture schematic diagram of Figure 10, the signal of the first idler wheel stereochemical structure provided by Figure 12 embodiment of the present invention Figure.

In a specific embodiment, it provides a kind of Window curtain structure, including cross bar 100 and is respectively arranged in the cross The front tension bar 200 and back stay 300 at 100 both ends of bar, are installed on the cross at the top plate 400 for being installed on 100 top of cross bar The multiple groups rolling member 800 of bar 100 and the casement 600 for being installed on the multiple groups rolling member 800,600 side of the casement Portion is equipped with magnetic stripe 700, and the top plate 400 is equipped with multiple groups limiting device 500.

Described 200 one end of front tension bar and 300 one end of back stay are individually fixed in wall, and are cut with scissors respectively by pin shaft 900 The both ends of the cross bar 100 are connected to, 500 equal part of multiple groups limiting device is installed on 400 top of top plate, rolls described in every group Moving part 800 rolls be installed in the cross bar 100 respectively, and bottom end is extended across to 100 bottom of cross bar, the curtain 600 top of cloth is evenly distributed to be equipped with multiple groups mounting ring 601, and the casement 600 is connected to described by multiple groups mounting ring 601 800 bottom end of rolling member, the magnetic stripe 700 are that muti-piece magnet constitutes and sutures installation along 600 side end of casement.

The front tension bar 200 includes the first nail-plate 210 and the connection described first that wall is fixed on by swell fixture The motor 230 of nail-plate 210 is connected to 230 output shaft end of motor and is articulated with the cross bar by the pin shaft 900 The first connecting rod 240 of 100 one end.

Preferably, first nail-plate 210 is provided with the first spy axis 211 perpendicular to metope direction, described first visits axis 211 ends are vertical by first bearing 220 and are rotationally connected with 230 side end of motor, realize that first visits axis 211 and electricity The rotation connection of machine 230；230 output shaft end of motor is drive screw, and the first connecting rod 240 is tubular structure, and And end is provided with the nut being cooperatively connected with the drive screw, makes 230 output shaft of motor that can be placed in first connecting rod 240 Interior, the drive screw and the nut constitute transmission.Itself and first connecting rod is adjusted by the rotation of 230 output shaft of motor 240 are coupled length, and cross bar 100 and 240 connecting pin of first connecting rod is made to carry out reciprocally swinging.

The back stay 300 include the second nail-plate 310 and be connected to second nail-plate 310 the second connecting rod 320, One end is connected to second connecting rod 320 and the other end passes through the pin shaft 900 and is articulated with 100 other end of cross bar Third connecting rod 330.

Preferably, second nail-plate 310 is provided with the second spy axis 311 perpendicular to metope direction, described second visits axis 311 end verticals and can be rotated connect with second connecting rod 320, the third connecting rod 330 be tubular structure, it is described Second connecting rod 320 is scalable to be installed in the connecting rod 330.

Preferably, the first spy axis 211 and the second spy axis 311 can stretch along its axis direction, by the One, which visits axis 211 and second, visits 311 telescopic adjustment of axis, and cross bar 100 is adjusted to the mounting distance of wall, improves property easy for installation.

Inverted draw cut 101 is offered at the top of the cross bar 100,101 bottom of inverted draw cut offers step kerve 102, described 100 bottom of cross bar offers the cunning mouth 103 with the kerve 102 perforation；

The rolling member 800 include the first idler wheel 810 and with first idler wheel 810 coaxial arrangement the second idler wheel 820 and Second bearing 830, the second bearing 830 are to roll ball-type bearing, and the second bearing 830 is installed on first idler wheel 810, second idler wheel 820 is fastened on 810 side of the first idler wheel, and the second bearing 830 is installed on described Between one idler wheel 810 and the second idler wheel 820, between the second bearing 830 and first idler wheel 810 and the second idler wheel 820 It is respectively provided with interstitial structure, first idler wheel 810 and the second idler wheel 820 pass through the cheese head screw 850 and round end spiral shell being mutually spirally connected Mother 860 is fixed, and the second bearing 830 is equipped with jacket 840；

The rolling member 800 is installed in the inverted draw cut 101, first idler wheel 810 and 820 bottom end profile of the second idler wheel difference Rolling is set in the kerve 102, and the jacket 840 passes through the sliding mouth 103 and extends to 100 outside of cross bar and pass through peace Dress ring 601 is connect with the casement 600.

Preferably, 810 end face of the first idler wheel is provided with spindle nose 811,812 root of spindle nose is provided with First Shoulder 812, second idler wheel 820 are provided with central siphon 821, and 821 root of central siphon is provided with the second shoulder 822, and described second 830 inner ring of bearing is set in the spindle nose 812, and the central siphon 822 is inserted into the spindle nose 812, and the second bearing 830 Inner ring is clamped between the first shoulder 812 and the second shoulder 822, the outer diameter of the first shoulder 812 and the second shoulder 822 Size be respectively less than or be equal to 830 inner ring outer diameter of second bearing, can make 830 outer ring end of second bearing respectively with the first idler wheel 810 and second the end face of idler wheel 820 generate interstitial structure, realize that opposite between 830 outer ring of second bearing of each idler wheel turns It is dynamic, the cheese head screw 850 and cheese head screw 860 respectively penetrates the spindle nose 812 and central siphon 822 is spirally connected.

Preferably, the jacket 840 is wrapped in upper jacket 841 and the connection of 830 outer ring of second bearing In upper 841 end of jacket and to the installation set 842 being extended on the outside of the second bearing 830, the installation set 842 End is equipped with hanging rod 844, and the mounting ring 601 is set in the hanging rod 844, upper jacket 841 to 830 outer ring of second bearing into Row non-fully wraps up, and then can realize that jacket 841 and installation set 842 are integrated sheet metal component, processing easy to produce, and be convenient for The handling of jacket 840.

Preferably, being respectively arranged with multiple groups hook plate 843 at 841 both sides of the edge of upper jacket, the hook plate 843 is vertical In upper 841 peripheral wall of jacket and it is arranged in the side end face of 830 outer ring of second bearing, packet can be realized by hook plate 843 Set 840 is with second bearing 830 along the positioning of its axis direction.

The top plate 400 includes cover board 410 and the first bolt 420 for being installed on the cover board 410, the cover board 410 End face is provided with protrusive board 411, and is located on the protrusive board 411 and offers the first mounting hole of multiple groups 412, first mounting hole 412 through the cover board 410 and protrusive board 411, is separately installed with the limiting device in the first mounting hole 412 described in every group 500, the limiting device 500 includes electromagnet and the bolt adsorbed by electromagnet and the bullet resetted for the bolt Spring further includes for arranging the electromagnet, bolt and the shell of spring, and the limiting device 500 passes through the outer casing end Screw thread be bolted in first mounting hole 412, and the bolt may extend in inverted draw cut 101.

Through the cover board 410 and protrusive board 411 is bolted in, 410 side edge of cover board is equipped with first bolt 420 The second bolt of multiple groups 430；The cover board 410 is installed on 100 top of cross bar and institute by second bolt of multiple groups 430 It states protrusive board 411 to be fastened at 101 notch of inverted draw cut, first idler wheel 810 and 820 top profile of the second idler wheel roll respectively 411 two sides of protrusive board are set to, realize the guide-localization of the first idler wheel 810 and the second idler wheel 820.

Preferably, the bolt of first bolt 420 and limiting device 500 may extend to first rolling respectively It between wheel 810 and the second idler wheel 820 and may extend to 840 outside of jacket, can be realized by bolt and the first bolt 420 The braking of the first idler wheel 810 and the second idler wheel 820 is realized in positioning of the rolling member 800 in inverted draw cut 101.

Preferably, the bolt peripheral wall is arranged with elastic sleeve structure, the impact strength of bolt Yu jacket 840 can be reduced, Play the role of buffering and noise reduction.

Specific installation and adjustment process, the both ends of cross bar 100 are first passed through front tension bar 200 and back stay 300 is installed by 1. respectively In wall, the changeable cross bar 100 of 311 collapsing length of axis is visited to wall by adjusting 211 collapsing length of the first spy axis and second respectively The distance of body, advantage are that the property easy for installation and installation effectiveness that improve curtain are more suitable for convenient for adjusting the setting angle of curtain It is installed on wall of the metope there are drop.

2. adjusting the initial connection length of 230 output shaft end of motor and first connecting rod 240, advantage is to facilitate motor The hunting range of 100 end of cross bar when 230 positive and negative rotation, being capable of reciprocal smooth sliding along cross bar 100 conducive to casement 600；Again The connection length of second connecting rod 320 and third connecting rod 330 is determined, advantage is the installation of variable sector cord 600 Highly；

3. the first group of rolling member 800 that will be close to 300 end of back stay is fixed by the first bolt 420, the first spiral shell can also be made Bolt 420 is placed between first group of rolling member being disposed adjacent 800, is realized the fixation of 600 one end of casement, is avoided casement 600 Whole slide.

Curtain expansion: specifically used process is rotated clockwise, 230 output shaft end of motor is connect with first by motor 230 The total length that bar 240 connects lengthens, and cross bar 100 is located at 200 end of front tension bar to lower swing, multiple groups rolling member 800 along inverted draw cut 101 to 200 direction of front tension bar rolls, and rolling member 800 pulls the free end of casement 600 to 200 direction of front tension bar, realizes curtain Expansion.

Curtain folds: being rotated counterclockwise by motor 230,230 output shaft end of motor connect overall length with first connecting rod 240 Degree shortens, and cross bar 100 is located at 200 end of front tension bar and is swung up, multiple groups rolling member 800 along inverted draw cut 101 take back 300 directions roll Dynamic, the free end of casement 600 is pulled to 300 direction of back stay and pulled by rolling member 800, realizes folding for curtain.

Curtain take down the exhibits range adjusting: can be adjusted by the multiple groups limiting device 500 being mounted on top plate 100, every group Limiting device 500 can independently carry out start-stop, bolt pop-up when starting in limiting device 500, can opposite 200 direction of front tension bar fortune First group of dynamic rolling member 800 is limited, and then can be limited curtain and be taken down the exhibits range.

600 end of casement, can be fixed on the metal strip of wall by 700 energizing magnetic of magnetic stripe after casement expansion Or the mutually absorption connection of two groups of casements 600 being oppositely arranged, and then realize the closure of casement 600, magnetic stripe when curtain folds 700 power-off, realize 600 end of casement freedom or two groups be oppositely arranged casement 600 separation.

Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.

Claims

1. a kind of Window curtain structure, including cross bar and it is respectively arranged in the front tension bar at the cross bar both ends and back stay, is installed on Top plate at the top of the cross bar is installed on the multiple groups rolling member of the cross bar and is installed on the curtain of the multiple groups rolling member Cloth, the casement side end are equipped with magnetic stripe, and the mounting of roof plate has multiple groups limiting device, which is characterized in that

2. a kind of Window curtain structure as described in claim 1, which is characterized in that first nail-plate is arranged perpendicular to metope direction There is the first spy axis, the first spy shaft end portion is vertical by first bearing and is rotationally connected with the motor side end, realizes First visits the rotation connection of axis and motor；The motor output shaft end is drive screw, and the first connecting rod is tubular structure, And end is provided with the nut being cooperatively connected with the drive screw, be placed in motor output shaft can in first connecting rod, The drive screw and the nut constitute transmission；It is adjusted by motor output shaft rotation and cooperates peace with first connecting rod Length is filled, cross bar and first connecting rod connecting pin is made to carry out reciprocally swinging.

3. a kind of Window curtain structure as described in claim 1, which is characterized in that second nail-plate is arranged perpendicular to metope direction There is the second spy axis, described second visits axis end vertical and rotatably connect with second connecting rod, the third connecting rod For tubular structure, second connecting rod is scalable to be installed in the connecting rod.

4. a kind of Window curtain structure as claimed in claim 2 or claim 3, which is characterized in that described first, which visits axis and second, visits axis It stretches along its axis direction, visits axis and second by first and visit axis telescopic adjustment, the locating distance of cross bar to wall is adjusted From.

5. a kind of Window curtain structure as described in claim 1, which is characterized in that first idler wheel end face is provided with spindle nose, institute It states spindle nose root and is provided with first shoulder, second idler wheel is provided with central siphon, and the central siphon root is provided with the second shoulder, institute It states second bearing inner ring and is set in the spindle nose, the central siphon is inserted into the spindle nose, and the second bearing inner ring is clamping Between the first shoulder and the second shoulder, the outer diameter of the first shoulder and the second shoulder is respectively less than or is equal to second Bearing inner race outer diameter can make second bearing outer ring end generate gap knot with the end face of the first idler wheel and the second idler wheel respectively Structure, realizes the relative rotation between second bearing outer ring of each idler wheel, and the cheese head screw and cheese head screw respectively penetrate institute It states spindle nose and central siphon is spirally connected.

6. a kind of Window curtain structure as described in claim 1, which is characterized in that the jacket is wrapped in the second bearing The upper jacket of outer ring and the installation set for being connected to the upper jacket end and being extended to the second bearing outside, institute It states installation set end and hanging rod is installed, the mounting ring is set in the hanging rod, and upper jacket carries out second bearing outer ring non-complete Full package, and then can realize that jacket and installation set are integrated sheet metal component.

7. a kind of Window curtain structure as claimed in claim 6, which is characterized in that be respectively arranged at the upper jacket both sides of the edge Multiple groups hook plate, the hook plate is perpendicular to the upper jacket peripheral wall and is arranged in the side end face of the second bearing outer ring, passes through Hook plate can realize jacket and second bearing along the positioning of its axis direction.

8. a kind of Window curtain structure as described in claim 1, which is characterized in that first bolt and the described of limiting device insert Pin may extend between first idler wheel and the second idler wheel respectively and may extend on the outside of the jacket, pass through bolt and the One bolt can realize positioning of the rolling member in inverted draw cut, realize the braking of the first idler wheel and the second idler wheel.

9. a kind of Window curtain structure as claimed in claim 8, which is characterized in that the bolt peripheral wall is arranged with elastic sleeve structure.