CN201078179Y

CN201078179Y - Locating mechanism of window curtain

Info

Publication number: CN201078179Y
Application number: CNU2007200428081U
Authority: CN
Inventors: 黄介仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-14
Filing date: 2007-08-14
Publication date: 2008-06-25
Anticipated expiration: 2017-08-14

Abstract

The utility model discloses a window blind positioning mechanism, which comprises a box, rotary positioning parts arranged in the box, and guide slots containing a stop ball on the bottom of the box.. A first stop plate and a second stop plate are arranged on the external surface of the rotary positioning part, wherein, the first stop plate comprises a positioning stop block and a second oblique block connected in a fixed manner, a lock block is arranged between the first stop plate and the second stop plate, a positioning slot is arranged on lower part of the lock block, and the positioning slot faces the second oblique block of the positioning stop block.. The positioning mechanism works with a rotary rod that coils a pull rope, so that the rotary positioning part can rotate with the rotary rod; as the rotary rod draws the pull rope to pull up a blind, the rotary positioning part rotates, and the stop ball moves relatively to the rotary positioning part; when the stop ball is blocked between the positioning stop block and the second oblique block, the rotary positioning part will rotate in reverse direction, so that the stop ball will enter into the positioning slot and stop the blind automatically; when the pull rope is pulled again, the stop ball will disengage the positioning slot, so that the blind can be pulled further..

Description

The detent mechanism of curtain

Technical field

The utility model relates to a kind of detent mechanism of curtain.

Background technology

In the prior art, curtain comprises supporting seat, the curtain body at top, supporting seat is provided with draw-off mechanism, this draw-off mechanism is by the opening and closing of stay cord tractive curtain body with the control curtain, end at supporting seat is provided with detent mechanism usually, when being pulled up, the curtain body make the curtain body be positioned by the operation detent mechanism, but this detent mechanism needs by people's hand operation it to be in the lock state can locate the curtain body, and also need when putting lower curtain body make it be in released state by people's hand operation detent mechanism, its operation is cumbersome.

Summary of the invention

The utility model purpose provides a kind of detent mechanism of curtain, can realize the location and the release of curtain body in the process of tractive curtain body automatically.

For achieving the above object, the technical solution adopted in the utility model is: a kind of detent mechanism of curtain, it comprise the two ends perforate box body, be arranged at the positioning of rotating part in the described box body, have first baffle plate and second baffle on the external surface of described positioning of rotating part; Described first baffle plate comprises the body piece, be fixedly connected towards first oblique that extends away from the direction bending of second baffle, the guide pad that is fixedly connected with the other end of described body piece, the bending block that extends to form downwards from the end of guide pad, with described bending block from an end of described body piece second oblique; Constitute between described body piece and the second baffle and separate locked groove, constitute the outlet of separating locked groove between one end of described body piece and the second baffle, constitute the inlet of separating locked groove between the other end of described body piece and the second baffle, the described second baffle of separating the exit of locked groove tilts towards the direction away from the body piece; Be provided with clamping block between described first oblique and the second baffle, has a segment distance between described clamping block and the second baffle, the lower part fork-shaped of described clamping block becomes first guide strip and second guide strip, described first guide strip is relative with the outlet of separating locked groove, described first guide strip and first oblique, constitute transition passage between second oblique, constitute locating slot between described first guide strip and second guide strip, described locating slot is facing to the bending block, the guiding surface of the upper surface of described guide pad for tilting towards the entrance of separating locked groove, the downside of described second guide strip is towards the guiding surface diagonally extending; The inner bottom part of described box body has the gathering sill that extends along the length direction of box body, contain positive stop bead in the described gathering sill, described detent mechanism has at least three duties, be lock-out state, released state and intermediateness, under lock-out state, the head portion of described positive stop bead is contained in the locating slot, under released state, the head portion of described positive stop bead is contained in to be separated in the locked groove, and under intermediateness, the head portion of described positive stop bead is contained in the transition passage.

Described first guide strip is towards first oblique inclination.

The inner chamber both ends of described positioning of rotating part are inserted with first rotating shaft and second rotating shaft respectively, and described first rotating shaft is stretched out box body from a stomidium of box body, and described second rotating shaft is stretched out box body from another stomidium of box body.

End in the insertion positioning of rotating part inner chamber of described second rotating shaft is the outer-hexagonal end, and the end adjacent with second rotating shaft of described positioning of rotating part has the end inner hexagonal hole, and described outer-hexagonal end is inserted in the inner hexagonal hole of end.

The endoporus of described first rotating shaft has at least one section to be interior hexagonal spline hole.

Because technique scheme utilization, the utility model compared with prior art has following advantage: this detent mechanism is installed on the supporting seat of curtain, the bull stick that has the coiling stay cord on the supporting seat, the positioning of rotating part promptly rotates with bull stick, the tractive stay cord during with pull-up curtain body the positioning of rotating part rotate with stay cord, by the curtain body being located positive stop bead and cooperating of locating slot, positive stop bead is entered during stay cord under the guide effect of guide pad again separates in the locked groove, thereby make the curtain body to be continued tractive, release of the present utility model and lock operation are finished in the process of tractive curtain body automatically, and its use is more convenient.

Description of drawings

Accompanying drawing 1 is a three-dimensional exploded view of the present utility model;

Accompanying drawing 2 is the stereo amplification figure of positioning of rotating part of the present utility model;

Accompanying drawing 3 is the rear elevation of positioning of rotating part of the present utility model;

Accompanying drawing 4 is main sectional view of the present utility model (lid and pad omit)

Wherein: 1, box body; 2, positioning of rotating part; 3, first rotating shaft; 4, separate locked groove; 5, positive stop bead; 6, clamping block; 7, locating slot; 8, end inner hexagonal hole; 9, first baffle plate; 10, second baffle; 11, first oblique; 12, bending block; 13, clamping slot; 14, second rotating shaft; 15, outer-hexagonal end; 16, interior hexagonal spline hole; 17, gathering sill; 18, first guide strip; 19, second guide strip; 20, body piece; 21, second oblique; 22, guide pad; 23, guiding surface; 24, transition passage.

The specific embodiment

Shown in accompanying drawing 1-accompanying drawing 4, a kind of detent mechanism of curtain, it comprise the two ends perforate box body 1, be arranged at the positioning of rotating part 2 in the described box body 1, have first baffle plate 9 and second baffle 10 on the external surface of described positioning of rotating part 2; Described first baffle plate 9 comprises body piece 20, be fixedly connected towards first oblique 11 that extends away from the direction bending of second baffle 10, the guide pad 22 that is fixedly connected with the other end of described body piece 20, the bending block 12 that extends to form downwards from the end of guide pad 22, with described bending block 12 from an end of described body piece 20 second oblique 21; Constitute between described body piece 20 and the second baffle 10 and separate locked groove 4, constitute the outlet of separating locked groove 4 between one end of described body piece 20 and the second baffle 10, constitute the inlet of separating locked groove 4 between the other end of described body piece 20 and the second baffle 10, the described second baffle 10 of separating the exit of locked groove 4 tilts towards the direction away from body piece 20; Be provided with clamping block 6 between described first oblique 11 and the second baffle 10, has a segment distance between described clamping block 6 and the second baffle 10, the lower part fork-shaped of described clamping block 6 becomes first guide strip 18 and second guide strip 19, described first guide strip 18 is relative with the outlet of separating locked groove 4, described first guide strip 18 and first oblique 11, constitute transition passage 24 between second oblique 21, constitute locating slot 7 between described first guide strip 18 and second guide strip 19, described locating slot 7 is facing to bending block 12, the guiding surface 23 of the upper surface of described guide pad 22 for tilting towards the entrance of separating locked groove 4, the downside of described second guide strip 19 is towards guiding surface 23 diagonally extendings; The inner bottom part of described box body 1 has the gathering sill 17 that extends along the length direction of box body 1, contain positive stop bead 5 in the described gathering sill 17, described detent mechanism has at least three duties, be lock-out state, released state and intermediateness, under lock-out state, the head portion of described positive stop bead 5 is contained in the locating slot 7, under released state, the head portion of described positive stop bead 5 is contained in to be separated in the locked groove 4, under intermediateness, the head portion of described positive stop bead 5 is contained in the transition passage 24.

The inner chamber both ends of described positioning of rotating part 2 are inserted with first rotating shaft 3 and second rotating shaft 14 respectively, and described first rotating shaft 3 is stretched out box body 1 from a stomidium of box body 1, and described second rotating shaft 14 is stretched out box body 1 from another stomidium of box body 1.

Shown in accompanying drawing 2, described first guide strip 18 tilts towards first oblique 11, and second oblique 21 is extended towards the direction away from second baffle 10, described bending block 12 with second oblique 21 between formation clamping slot 13.

Shown in accompanying drawing 4, end in insertion positioning of rotating part 2 inner chambers of described second rotating shaft 14 is outer-hexagonal end 15, the end adjacent with second rotating shaft 14 of described positioning of rotating part 2 has end inner hexagonal hole 8, described outer-hexagonal end 15 is inserted in the end inner hexagonal hole 8, by cooperating of outer-hexagonal end 15 and end inner hexagonal hole 8, make positioning of rotating part 2 be connected with second rotating shaft, 14 splines ground.The endoporus of described first rotating shaft 3 has at least one section to be interior hexagonal spline hole 16, the utility model is installed in the supporting seat (common components at curtain top when practical application, do not show in the accompanying drawing) on, on supporting seat, has bull stick, the longitudinal section of bull stick is hexagon, be wound with the pull rope that is connected with the curtain body of curtain on the bull stick, bull stick inserts in the endoporus of first rotating shaft 3 and second rotating shaft 14, bull stick matches with interior hexagonal spline hole 16, the rotating shaft 3 of winning, second rotating shaft 14 are rotated under the drive of bull stick, and be with 2 rotations of positioning of rotating part.

When the utility model is in released state, the head portion of positive stop bead 5 is unlocked groove 4 and accommodates, and makes the curtain body of curtain to be pulled up or to put down, and is wound with stay cord (common structure on the bull stick, do not show among the figure), when rotating, bull stick rotates by stay cord traction positioning of rotating part 2.During the curtain body of pull-up curtain, positioning of rotating part 2 is pressed direction shown in the arrow in the accompanying drawing 2 and is rotated, when positioning of rotating part 2 turns to the outlet of separating locked groove 4 facing to the position of positive stop bead 5 and when being rotated further, positive stop bead 5 is promptly sliding in gathering sill 17 under the guide effect of first guide strip 18, its head portion is accommodated into transition passage 24, in positive stop bead 5 is stuck in clamping slot 13, make positioning of rotating part 2 to rotate by original direction; Unclamp bull stick, be subjected to the action of gravity of curtain body, positioning of rotating part 2 i.e. revolution automatically, makes positive stop bead 5 move relative to positioning of rotating part 2 under the guide effect of bending block 12, and the head portion of positive stop bead 5 can be accommodated in the locating slot 7 automatically, and the curtain body promptly is positioned; Continue the tractive stay cord, make positioning of rotating part 2 rotate according to the direction shown in the accompanying drawing 2, positive stop bead 5 is promptly in slip gathering sill 17 under the guide effect of guiding surface 23, accommodates thereby make the head portion of positive stop bead 5 be unlocked groove 4; If the utility model unclamps bull stick when released state, positioning of rotating part 2 promptly under the action of gravity of curtain body according to rotating in the opposite direction with side shown in the accompanying drawing 2, positive stop bead 5 relative positioning of rotating parts move and leave from the entrance of separating locked groove 4, after enter to enter from the exit of separating locked groove 4 again in the space between clamping block 6 and the second baffle 10 and by this space and separate in the locked groove 4, circulation is launched fully until the curtain body so repeatedly.Automatically locate in the process that the utility model can be pulled up at the curtain body of curtain, make the curtain body be positioned the appropriate location easily, and the curtain body can launch easily fully, its operation is more convenient.

Claims

1. the detent mechanism of a curtain, it is characterized in that: it comprise the two ends perforate box body (1), be arranged at the positioning of rotating part (2) in the described box body (1), have first baffle plate (9) and second baffle (10) on the external surface of described positioning of rotating part (2); The guide pad (22) that described first baffle plate (9) comprises body piece (20), be fixedly connected towards first oblique (11) of extending away from the direction bending of second baffle (10), with the other end of described body piece (20) from an end of described body piece (20), the bending block (12) that extends to form downwards from the end of guide pad (22), second oblique (21) being fixedly connected with described bending block (12); Constitute between described body piece (20) and the second baffle (10) and separate locked groove (4), constitute the outlet of separating locked groove (4) between one end of described body piece (20) and the second baffle (10), constitute between the other end of described body piece (20) and the second baffle (10) and separate the inlet of locked groove (4), the described second baffle (10) of separating the exit of locked groove (4) tilts towards the direction away from body piece (20); Be provided with clamping block (6) between described first oblique (11) and the second baffle (10), has a segment distance between described clamping block (6) and the second baffle (10), the lower part fork-shaped of described clamping block (6) becomes first guide strip (18) and second guide strip (19), described first guide strip (18) is relative with the outlet of separating locked groove (4), described first guide strip (18) and first oblique (11), constitute transition passage (24) between second oblique (21), constitute locating slot (7) between described first guide strip (18) and second guide strip (19), described locating slot (7) is facing to bending block (12), the guiding surface (23) of the upper surface of described guide pad (22) for tilting towards the entrance of separating locked groove (4), the downside of described second guide strip (19) is towards guiding surface (23) diagonally extending; The inner bottom part of described box body (1) has the gathering sill (17) that extends along the length direction of box body (1), contain positive stop bead (5) in the described gathering sill (17), described detent mechanism has at least three duties, it is lock-out state, released state and intermediateness, under lock-out state, the head portion of described positive stop bead (5) is contained in the locating slot (7), under released state, the head portion of described positive stop bead (5) is contained in to be separated in the locked groove (4), under intermediateness, the head portion of described positive stop bead (5) is contained in the transition passage (24).

2. the detent mechanism of curtain according to claim 1, it is characterized in that: described first guide strip (18) tilts towards first oblique (11).

3. the detent mechanism of curtain according to claim 1, it is characterized in that: the inner chamber both ends of described positioning of rotating part (2) are inserted with first rotating shaft (3) and second rotating shaft (14) respectively, box body (1) is stretched out in described first rotating shaft (3) from a stomidium of box body (1), box body (1) is stretched out in described second rotating shaft (14) from another stomidium of box body (1).

4. the detent mechanism of curtain according to claim 3, it is characterized in that: the end in insertion positioning of rotating part (2) inner chamber of described second rotating shaft (14) is outer-hexagonal end (15), the end adjacent with second rotating shaft (14) of described positioning of rotating part (2) has end inner hexagonal hole (8), and described outer-hexagonal end (15) is inserted in the end inner hexagonal hole (8).

5. the detent mechanism of curtain according to claim 3 is characterized in that: the endoporus of described first rotating shaft (3) has at least one section to be interior hexagonal spline hole (16).