CN202681561U

CN202681561U - Single pull rope driving device for curtain with positioning function

Info

Publication number: CN202681561U
Application number: CN 201220314993
Authority: CN
Inventors: 朱向荣
Original assignee: 李七妹
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2013-01-23
Anticipated expiration: 2022-07-02

Abstract

The utility model discloses a single pull rope driving device for a curtain with positioning function. The single pull rope driving device is characterized by comprising a frame, a winding drum arranged on the frame, a pull rope which drives the winding drum to rotate, a gear connected with the winding drum, and a swing rack which is arranged on the frame beside the gear in a swinging mode, wherein the swing rack comprises a rod, and more than one tooth arranged in the middle of the rod; the teeth are aligned with teeth on the gear; the lower end of the rod is close to the pull rope; and a spring is arranged between the frame and the rod. Compared with the prior art, the single pull rope driving device has the advantages that the device can perform accurate positioning and is convenient to use and simple in structure.

Description

A kind of curtain with the location is with single stay cord drive unit

Technical field

The utility model relates to a kind of curtain member.

Background technology

The existing technology that drives the curtain folding and unfolding by stay cord, the device of rotation driving that comprises the single dragline type that drives reel, folding and unfolding casement or folding and unfolding connect the reel of the rope of curtain, the positioner of the rope of casement or connection curtain, as shown in Figure 9, the device of rotation driving 3 of single dragline type is by the stay cord rotating disk box 3a that is fixed on the Curtain rod 1, rotation is arranged on the stay cord rotating disk 3c that is wound with stay cord 12 in the stay cord rotating disk box 3a, the one-way clutch 6 that links together with stay cord rotating disk 3c consists of, be provided with backrush spring 3e between stay cord rotating disk 3c and stay cord rotating disk box 3a, one-way clutch 6 is by the clutch body 3g with axis hole 3d that links together with stay cord rotating disk box 3a, be arranged on the rotating shaft 6a that power transmission shaft 17 drives cord winder (cord winder is used for the rope that coiling is connected with curtain) or reel (cylinder of coiling casement) action that passes through in the clutch body 3g axis hole 3d, be positioned at the wherein clutch slip rotary head 6b formation of an end of rotating shaft 6a, the end face that rotating shaft 6a and clutch slip rotary head 6b join is provided with the tooth 6c of one way engagement, stay cord rotating disk 3c side is provided with cover 3c1, the other end of clutch slip rotary head 6b is positioned at the cover 3c1 of stay cord rotating disk 3c side, the outer surface of the other end of clutch slip rotary head 6b is provided with skewed slot 6b1, be provided with slide block 3c2 in the cover 3c1 of the stay cord rotating disk 3c side of corresponding skewed slot 6b1, between the axis hole 3d of clutch slip rotary head 6b outer surface and clutch body 3g, be connected with turn 9.As shown in figure 11, one-way clutch 6 also can be to comprise the cavity 6d that is arranged on the stay cord rotating disk box 3a axle center A, be arranged on the stay cord rotating disk 3c and be positioned at driving shaft 6e on the stay cord disk axes A, be arranged on the power transmission shaft 6f in the cavity 6d, be arranged on the interior power transmission shaft 6d outer surface of driving shaft 6e outer surface and cavity 6d and the driving spring 6g on the cavity 6d inner surface, the external diameter of power transmission shaft 6f in the cavity 6d is not more than the external diameter of driving shaft 6e, driving spring 6g and driving shaft 6e, the stressed joint of cavity 6d inner surface, power transmission shaft 6d passes outside the cavity 6d and curtain reel 2 links together.

Such as Fig. 9, shown in Figure 10, positioner 5 comprises by the sleeve 5a that is connected on the Curtain rod 1, the power transmission shaft 17 that passes through that is arranged in the sleeve 5a consists of with the quill 5b that rotating shaft 6a links together, power transmission shaft 17 cross-under that are connected with cord winder 4 are on quill 5b, sleeve 5a madial wall is provided with

guide groove

5c, 5d is provided with logical slideway 5e from beginning to end along quill 5b surface, between guide groove 5c and slideway 5e, be provided with ball 5f, show such as Fig. 9,5d is provided with logical slideway 5e from beginning to end along quill 5b surface, between guide groove 5c and slideway 5e, be provided with ball 5f, slideway 5e is by a group or more left and right sides slideway 5e1,5e2, middle V-arrangement slideway 5e3 consists of, at left slideway 5e1, one of them direction of middle V-arrangement slideway 5e3 is provided with the right slideway 5e2 that leads respectively, the targeting port 5e4 of left slideway 5e1,5e5, the targeting port 5e6 of V-arrangement slideway 5e3 in the middle of the right slideway 5e2 of another direction is provided with guiding, the operation principle of positioner is: quill 5b rotates together with rotating shaft 17, ball 5f does axially-movable along guide groove 5c, slideway 5e moves, when the rotation direction of quill 5b is when making ball 5f enter right slideway 5e2, quill 5b successfully rotates, power transmission shaft 17 is rotated, when quill 5b stops operating, curtain tenesmus gravity or curtain institute with the effect of backrush elastic force drive power transmission shaft 17 under, quill 5b slightly turns round, make ball 5f enter by targeting port 5e6 in the middle of V-arrangement slideway 5e3 and be stuck in the middle of in the V-arrangement slideway 5e3, quill 5b can not be turned round, until the direction that quill 5b is packed up by device of rotation driving 3 along curtain is rotated, make ball 5f import left slideway 5e1 from middle V-arrangement slideway 5e3 by targeting port 5e5, behind the V-arrangement slideway 5e3, just can be rotated further in the middle of no longer being stuck in.Like this, the device of rotation driving of single dragline type drives the coiling casement or the reel of the rope of the connection curtain of reeling rotates toward a direction, when the rope of casement to be discharged or connection curtain reaches the length of setting, stop drag rope, under the positioning action of positioner, reel is scrolling no longer.Limited by the structure of positioner, during the location, reel often needs just only to stop about the backrush half-turn, therefore, when people need the release length of rope of accurate control casement or folding and unfolding curtain, backrush length when at first needing to know reel revolution location, then, the backrush during according to the location is the long corresponding length of Duola in advance, but, because the user does not generally have the knowledge of this respect, like this, has just brought very large inconvenience to the user.

Summary of the invention

Goal of the invention of the present utility model is to provide the curtain accurate stop of a kind of energy location, band easy to use, the structure letter location with single stay cord drive unit.

The utility model is to realize like this, comprise frame, be arranged on reel on the frame, drive stay cord, the gear that is connected with reel, swing that reel rotates and be arranged on fork tooth bar on the frame by the gear, the fork tooth bar comprises bar, is arranged on the more than one tooth at bar middle part, tooth is facing to the tooth on the gear, the lower end of bar is provided with spring against stay cord between frame and bar.During use, pull down stay cord, stay cord with some tension to against the power of the oriented extrapolation of bar of fork tooth bar, the fork tooth bar is outwards swung, tooth on the bar leaves gear, like this, stay cord just can drive reel and rotate, and when the rope of the casement of reel institute receiving/releasing or receiving/releasing curtain reaches the length of setting, unclamps rope, the fork tooth bar relies on gear under the effect of spring, tooth on the bar embeds the between cog of gear, gear can not be rotated, simultaneously, reel can not be rotated, thereby realize the purpose of stop location.Because the tooth on the gear is than comparatively dense, the tooth on the bar embeds the between cog of gear, and it is very little that the reel when gear is stopped operating is regulated the radian that rotates, and like this, the user just can carry out accurate stop bit easily.

In order to guarantee that rope is close together with the bar of fork tooth bar all the time, the lower end of bar is provided with the horizontally disposed mouth of hook, and rope passes the mouth of hook.

Here, what spring adopted is torque spring, and an end that is through the torque spring on the spring shaft by axis hole leans against on the locating dowel, and the other end is connected to the upper end of bar.

Perhaps, spring is V-shaped, and a wherein pin of V-arrangement spring swings and is connected on the frame, and another pin is connected to the upper end of bar.Adopt the operation principle of V-arrangement spring to be: when stay cord was in free state, the V-arrangement spring utilized its elastic force that opens with the outward side pressure of upper end of bar, made the between cog on the tooth embedding gear on the fork tooth bar; When past outside whipping stay cord, when by the mouth of hook bar being swung clockwise, the oscillatory forces of bar overcomes the elastic force swing that the V-arrangement spring opens, when the swing of bar is crossed a wherein pin of the pin joint of bar and V-arrangement spring behind the line of the pin joint on the frame, the V-arrangement spring utilizes its elastic force that opens with the past interior side pressure in the upper end of bar, make tooth on the fork tooth bar leave tooth on the gear, like this, the rotation of reel just is not subjected to the restriction of the tooth on the fork tooth bar, scrolling under the drive of stay cord, when curtain or the length of release that connects the rope of curtain reach preseting length, toward inboard whipping stay cord, by the mouth of hook bar is swung clockwise, the oscillatory forces of bar overcomes the elastic force that the V-arrangement spring opens and swings, and a wherein pin of crossing the pin joint of bar and V-arrangement spring when the swing of bar is behind the line of the pin joint on the frame, and the V-arrangement spring utilizes its elastic force that opens with the outward side pressure of upper end of bar, make tooth on the fork tooth bar again embed between cog on the gear, thereby realize the purpose of location.

Compared with the prior art the utility model has advantage can be accurately stop bit, easy to use, the structure letter.

Description of drawings:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the overall structure schematic diagram of curtain of the present utility model;

Fig. 3 a is the structural representation of the gear of the utility model spring embodiment 2 when not locating;

Fig. 3 b is the structural representation in gear when location of the utility model spring embodiment 2;

Fig. 4 a is the cutaway view that the utility model adopts another embodiment of torque spring;

Fig. 4 b is the cutaway view that the utility model adopts another embodiment of V-arrangement spring;

Fig. 5 is the cutaway view with another embodiment of the present utility model of traditional positioner.

State diagram when Fig. 6 is the utility model driving reel;

Fig. 7 is the structural representation of the prong of pull bar gear;

Fig. 8 is use state diagram of the present utility model;

Fig. 9 is the structural representation of device of rotation driving of single dragline type of prior art;

Figure 10 is the expanded view of the sleeve of Fig. 9;

Figure 11 is the structural representation of device of rotation driving of single dragline type of another kind of prior art

The specific embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is done and is described in further detail:

Such as Fig. 1, shown in 2, the utility model comprises frame 1, be arranged on the reel 2 on the frame 1, be arranged on the device of rotation driving 3 of single dragline type of driving reel 2 rotations on the frame 1, the gear 7 that is connected and is positioned at frame 1 outside with reel 2, swing is arranged on the fork tooth bar 8 on the gear 7 next door frames 1, fork tooth bar 8 comprises bar 9, be positioned at the more than one tooth 10 at bar 9 middle parts, bar 9 tops swing on the axle 13 that is connected on the frame 1, tooth 10 is facing to the tooth 7a on the gear 7, the lower end of bar 9 is provided with spring 11 against the rope 12 of the device of rotation driving 3 of single dragline type in

frame

1 and 8 of fork tooth bars.

Shown in Fig. 4, Fig. 4 b, gear 7 is arranged on the device of rotation driving 3 interior side external surfaces of single dragline type and is connected with reel 2 by being rotationally connected cover 23.Be provided with protection housing 18 at gear 7 outer surfaces, with protection gear and corresponding member.

As shown in Figure 5, adapter sleeve 23 is fixedly connected with the quill 5b of the positioner 5 of prior art.

The lower end of bar 9 is provided with the horizontally disposed mouth of hook 20, and rope 12 passes the mouth of hook 20.

Shown in Fig. 1, Fig. 4 a, spring 11 adopts torque spring, and an end that is through the torque spring 11 on the spring shaft 15 by axis hole 14 leans against on the locating dowel 16, and the other end is connected to the upper end of bar 9.

Shown in Fig. 3 a, Fig. 3 b, Fig. 4 b, spring 11 adopts the V-arrangement spring, and when adopting V-arrangement spring 11, the part of the 90 degree bendings of a wherein pin 11a of V-arrangement spring 11 is rotated and pierced on the frame 1, and the part of the 90 degree bendings of another pin 11b is rotated the upper end of piercing into bar 9.When static, part and bar 9 tops of 90 degree bendings that the parts of the 90 degree bendings of another pin 11b of spring 11 are positioned at a wherein pin 11a of V-arrangement spring 11 swing the side of the line A of the axle 13 on the frame 1 that is connected.

As shown in Figure 7, be provided with the table top 19 perpendicular to bar 9 in the inboard of bar 9, the mouth of hook 20 is a perforation, and perforation 20 is positioned on the table top 19 of bar 9 inboards.The perforation 20 that is positioned at like this on the table top 19 of bar 9 inboards just in time faces rope 12, and rope can be spurred swimmingly.

Tooth 7a on the gear 7 is the right angle tooth, and the right-angle side of right angle tooth 7a is positioned at the side identical with the direction of reel elastic force counter-rotating, and corresponding tooth 10 is the right angle tooth, and the right-angle side of right angle tooth 10 faces the right-angle side of the right angle tooth 7a on the gear 7.Adopt the right angle tooth, can more effectively realize locating stop.

The upper part of bar 9 is the arc that matches with gear 7, so that a plurality of teeth 10 on the bar 9 can be embedded between the tooth 7a of gear 7 simultaneously.

As shown in Figure 8, the present invention can be applicable on the curtain that casement 21 is grating type printing opacities, and a wherein end of casement 21 is fixed on the frame 1, and the other end is on the reel 2 of curtain, and tenesmus place of casement 21 arranges a tenesmus socket 22.Because the present invention can realize accurate stop location, therefore, the barrier of two width of cloth casements staggers before and after can making as required, and with the sealing of printing opacity grid, the barrier of two width of cloth casements is overlapping before and after perhaps making, and opens the printing opacity grid.

Claims

One kind with the curtain of location with single stay cord drive unit, it is characterized in that comprising frame, be arranged on reel on the frame, drive stay cord, the gear that is connected with reel, swing that reel rotates and be arranged on fork tooth bar on the frame by the gear, the fork tooth bar comprises bar, is arranged on the more than one tooth at bar middle part, tooth is facing to the tooth on the gear, the lower end of bar is provided with spring against stay cord between frame and bar.
2. the curtain of band according to claim 1 location is characterized in that with single stay cord drive unit the lower end of bar is provided with the horizontally disposed mouth of hook, and rope passes the mouth of hook.
3. the curtain of band according to claim 2 location is with single stay cord drive unit, it is characterized in that being provided with in the inboard of bar the table top perpendicular to bar, and the mouth of hook is a perforation, bores a hole to be positioned on the table top of bar inboard.
According to claim 1 and 2 or the curtain of 3 described bands location with single stay cord drive unit, what it is characterized in that the spring employing is torque spring, an end that is through the torque spring on the spring shaft by axis hole leans against on the locating dowel, the other end is connected to the upper end of bar.
According to claim 1 and 2 or the curtain of 3 described bands location with single stay cord drive unit, it is characterized in that spring is V-shaped, the wherein pin swing of V-arrangement spring is connected on the frame, another pin is connected to the upper end of bar.
According to claim 1 and 2 or the curtain of 3 described bands location with single stay cord drive unit, it is characterized in that the tooth on the gear is the right angle tooth, the right-angle side of right angle tooth is positioned at the side identical with the direction of reel elastic force counter-rotating, corresponding tooth is the right angle tooth, and the right-angle side of right angle tooth faces the right-angle side of the right angle tooth on the gear.
7. the curtain of band according to claim 4 location is with single stay cord drive unit, it is characterized in that the tooth on the gear is the right angle tooth, the right-angle side of right angle tooth is positioned at the side identical with the direction of reel elastic force counter-rotating, corresponding tooth is the right angle tooth, and the right-angle side of right angle tooth faces the right-angle side of the right angle tooth on the gear.
8. the curtain of band according to claim 5 location is with single stay cord drive unit, it is characterized in that the tooth on the gear is the right angle tooth, the right-angle side of right angle tooth is positioned at the side identical with the direction of reel elastic force counter-rotating, corresponding tooth is the right angle tooth, and the right-angle side of right angle tooth faces the right-angle side of the right angle tooth on the gear.
According to claim 1 and 2 or the curtain of 3 or 7 or 8 described bands location with single stay cord drive unit, it is characterized in that the upper part of bar is the arc that matches with gear.
10. the curtain of band according to claim 4 location is characterized in that with single stay cord drive unit the upper part of bar is the arc that matches with gear.