CN213478165U

CN213478165U - Curtain folding and unfolding limiting device

Info

Publication number: CN213478165U
Application number: CN202022222369.0U
Authority: CN
Inventors: 张国富; 刘翰仁
Original assignee: Shunde District Of Foshan City An Fuheng Smart Windows Manufacturing Co ltd
Current assignee: Shunde District Of Foshan City An Fuheng Smart Windows Manufacturing Co ltd
Priority date: 2020-10-08
Filing date: 2020-10-08
Publication date: 2021-06-18
Anticipated expiration: 2030-10-08

Abstract

The utility model relates to a curtain folding and unfolding limiting device, which comprises a limiter, wherein the limiter comprises a shell, the side wall of the shell is provided with a rod hole for a curtain hanging rod to pass through, and a curtain folding limiting switch and a curtain unfolding limiting switch with on-off contacts both positioned at the bottom are arranged in the shell; a T-shaped push rod is arranged below the curtain-folding limit switch, and a vertical rod of the T-shaped push rod is movably inserted into a through hole arranged at the bottom of the shell and is exposed out of the lower part of the shell; an L-shaped push rod is movably arranged near the curtain unfolding limit switch, a cross arm of the L-shaped push rod is arranged in the shell below the on-off contact of the curtain unfolding limit switch, the outer end of the cross arm is connected with the side wall of the shell through a rotating shaft, the top of the cross arm is provided with a movable contact convex point used for touching the on-off contact of the curtain unfolding limit switch, a vertical arm of the movable contact convex point is movably arranged at the outer side part of the shell, and a longitudinal long hole for a curtain hanging rod to pass through is. The device also includes a touch ring for driving the vertical arm of the L-shaped push rod to approach the housing. The utility model has the advantages of convenient installation and less occupation.

Description

Curtain folding and unfolding limiting device

Technical Field

The utility model relates to an electronic shutter, concretely relates to electronic shutter's (window) curtain stop device that takes up and expands.

Background

The electric blind window generally controls the rotation direction of the driving motor by arranging two groups of limit switches, and further realizes the limitation of the folding amplitude and the unfolding amplitude of the curtain. The traditional limiting device generally divides two groups of limiting switches into the top and the bottom of the window frame, so that the defects of more occupation and inconvenient installation exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at improving the above-mentioned defect that traditional shutter stop device exists.

The utility model adopts the following technical scheme:

a curtain folding and unfolding limiting device comprises a limiter, wherein the limiter comprises a shell, the side wall of the shell is provided with a rod hole for a curtain hanging rod to pass through, and a curtain folding limiting switch and a curtain unfolding limiting switch are arranged in the shell, wherein on-off contacts of the curtain folding limiting switch and the curtain unfolding limiting switch are positioned at the bottom of the shell; a T-shaped push rod for touching the on-off contact of the curtain-retracting limit switch is movably arranged up and down below the curtain-retracting limit switch, two ends of a cross rod head of the T-shaped push rod are movably connected in a longitudinal elongated slot arranged on the inner side wall of the shell in a sliding way, and a vertical rod of the T-shaped push rod is movably inserted in a through hole arranged at the bottom of the shell and is exposed out of the lower part of the shell; an L-shaped push rod for touching the on-off contact of the curtain unfolding limit switch is movably arranged near the curtain unfolding limit switch, a cross arm of the L-shaped push rod is arranged in the shell below the on-off contact of the curtain unfolding limit switch, the outer end of the cross arm is connected to the side wall of the shell through a rotating shaft, a movable contact salient point for touching the on-off contact of the curtain unfolding limit switch is arranged at the top of the cross arm, a vertical arm of the movable contact salient point is movably arranged at the outer side part of the shell, and a longitudinal long hole for a curtain hanging.

The curtain folding and unfolding limiting device further comprises a touch ring which is used for being sleeved and fixed on the curtain hanging rod to drive the vertical arm of the L-shaped push rod to be close to the shell, and a wiring hole is formed in the touch ring.

The utility model discloses to receive curtain limit switch and exhibition curtain limit switch and all locate on same stopper, can all locate the top of window frame with a whole set of stop device during the installation. Compare in traditional shutter stop device, the utility model has the advantages of simple to operate and occupy the place less.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

fig. 2 is a schematic structural view of a stopper according to an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of the rolled curtain according to the embodiment of the present invention;

fig. 4 is a schematic view of the overall structure of the curtain according to the embodiment of the present invention after being unfolded.

The dashed arrows in fig. 3 and 4 indicate the direction of movement of the curtain rods, and the solid arrows indicate the direction of movement of the ladder cords.

Detailed Description

The present invention will be described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2:

a curtain folding and unfolding limiting device comprises a limiting device 10, wherein the limiting device 10 comprises a shell 11, a rod hole 11.1 for a curtain hanging rod to pass through is formed in the side wall of the shell 11, and a curtain folding limiting switch 12 and a curtain unfolding limiting switch 13, of which the on-off contacts are located at the bottom, are arranged in the shell 11.

A T-shaped push rod 14 for touching the on-off contact of the curtain-collecting limit switch 12 is movably arranged up and down below the curtain-collecting limit switch, two ends of a cross rod head of the T-shaped push rod 14 are movably connected in a longitudinal elongated slot arranged on the inner side wall of the shell 11 in a sliding way, and a vertical rod of the T-shaped push rod is movably inserted in a through hole arranged at the bottom of the shell 11 and is exposed out of the lower part of the shell 11.

An L-shaped push rod 15 used for touching the on-off contact of the curtain unfolding limit switch 13 is movably arranged near the curtain unfolding limit switch 13, a cross arm of the L-shaped push rod 15 is arranged in the shell 11 below the on-off contact of the curtain unfolding limit switch 13, the outer end of the cross arm is connected to the side wall of the shell 11 in a rotating mode, a movable contact convex point 15.1 used for touching the on-off contact of the curtain unfolding limit switch 13 is arranged at the top of the cross arm, a vertical arm of the movable contact convex point is movably arranged at the outer side portion of the shell 11, and a longitudinal long hole 15.2 for.

The curtain folding and unfolding limiting device further comprises a touch ring 20 which is used for being sleeved and fixed on the curtain hanging rod to drive the vertical arm of the L-shaped push rod 15 to be close to the shell 11, and a wiring hole 20.1 is formed in the touch ring 20.

As shown in fig. 3 and 4: the top of the window frame is transversely provided with a curtain hanging rod 1, and the two ends of the curtain hanging rod 1 are respectively connected with the side walls at the two sides of the window frame through screw rod structures.

Fixing the outer shell 11 of the stopper 10 on the top of the window frame, and making the bottom of the T-shaped push rod 14 movably exposed out of the window frame, and making the L-shaped push rod 15 located at the right side of the outer shell 11; the curtain hanging rod 1 passes through a rod hole 11.1 on the shell 11 and a longitudinal long hole 15.2 on the L-shaped push rod 15; the touch ring 20 is sleeved and fixed on the curtain hanging rod 1 on the right side of the L-shaped push rod 15 at a distance so as to rotate along with the curtain hanging rod 1 and move left and right, and the wire collector 2 is arranged on the left side of the limiter 10 at a distance.

The ladder cord 4 connected to the blind bed curtain 3 is wound up around the cord winder 2 and the top end thereof is fixed to the touch ring 20.

As shown in fig. 3, when the curtain is rolled up, the curtain hanging rod 1 is driven to rotate forward and move to the right, the wire winder 2 winds the ladder wire 4, the ladder wire 4 lifts the blind curtain 3 to the top, the blind curtain 3 lifts the T-shaped push rod 14 to move upwards, the T-shaped push rod 14 supports the on-off contact piece of the curtain rolling limit switch 12 until the on-off contact piece is closed, and the curtain rolling limit switch 12 is switched on. Meanwhile, the touch ring 20 moves rightwards along with the curtain hanging rod 1 to be separated from the vertical arm of the L-shaped push rod 15, the vertical arm of the L-shaped push rod 15 is separated from the shell 11 rightwards under the action of gravity, the cross arm of the L-shaped push rod moves downwards to drive the movable contact bump 15.1 to move downwards to be separated from the on-off contact piece of the curtain unfolding limit switch 13, and the curtain unfolding limit switch 13 is disconnected.

As shown in fig. 4, when the curtain is unfolded, the curtain hanging rod 1 is driven to rotate reversely and move to the left side, the wire collector 2 unfolds the ladder wire 4, the ladder wire 4 puts the blind curtain 3 down until the blind curtain is completely unfolded, the blind curtain 3 is separated from the T-shaped push rod 14, and the on-off contact of the curtain folding limit switch 12 is disconnected. Meanwhile, the touch ring 20 moves leftwards along with the curtain hanging rod 1, pushes the vertical arm of the L-shaped push rod 15 to be attached to the shell 11, drives the transverse arm of the L-shaped push rod 15 to move upwards, drives the movable contact convex point 15.1 to prop up the on-off contact piece of the curtain unfolding limit switch 13 upwards until the on-off contact piece is closed, and switches on the curtain unfolding limit switch 13.

Claims

1. A curtain folding and unfolding limiting device is characterized by comprising a limiter (10), wherein the limiter (10) comprises a shell (11), a rod hole (11.1) for a curtain hanging rod to pass through is formed in the side wall of the shell (11), and a curtain folding limiting switch (12) and a curtain unfolding limiting switch (13) with on-off contacts positioned at the bottom are arranged in the shell (11); a T-shaped push rod (14) for touching the on-off contact of the curtain-collecting limit switch (12) is movably arranged up and down below the curtain-collecting limit switch, two ends of a cross rod head of the T-shaped push rod (14) are movably connected in a longitudinal elongated slot arranged on the inner side wall of the shell (11) in a sliding way, and a vertical rod of the T-shaped push rod is movably inserted in a through hole arranged at the bottom of the shell (11) and is exposed out of the lower part of the shell (11); an L-shaped push rod (15) for touching the on-off contact of the curtain unfolding limit switch (13) is movably arranged near the curtain unfolding limit switch (13), a cross arm of the L-shaped push rod (15) is arranged in the shell (11) below the on-off contact of the curtain unfolding limit switch (13), the outer end of the cross arm is connected to the side wall of the shell (11) in a rotating mode, a movable contact convex point (15.1) for touching the on-off contact of the curtain unfolding limit switch (13) is arranged at the top of the cross arm, a vertical arm of the movable contact convex point is movably arranged at the outer side portion of the shell (11), and a longitudinal long hole (15.2) for;

the curtain folding and unfolding limiting device further comprises a touch ring (20) which is used for being sleeved and fixed on the curtain hanging rod to drive a vertical arm of the L-shaped push rod (15) to approach the shell (11), and a wiring hole (20.1) is formed in the touch ring (20).