Roller blind operating mechanism

Abstract

The present application aims at the problem of complicated structure and high production cost of the operating mechanism of the roller blind in the prior art, and provides an operating mechanism of the roller blind, which comprises a locking device and a guide device, one end of the guide device is in the locking device, the guide device can rotate and move relative to the locking device, a guide wheel is arranged in the guide device, a part of the annular pull rope enters the guide device through the locking device and passes through the guide wheel to realize the circulating movement of the pull rope, a locking column is arranged in the locking device, the locking column is respectively located on both sides of the guide device, when the guide device moves, the guide device moves to the locking column on one moving side, so as to lock the pull rope between the guide device and the locking column. The present application has simple structure and low production cost, the pull rope is closed in the operating mechanism, and the risk of injury of children is prevented.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of rolling window curtain, and particularly relates to a rolling window curtain operating mechanism. BACKGROUND

[0002] Rolling window curtain is also known as rolling window curtain. Compared with traditional cloth left-right opening and closing type window curtain, it is named by rolling up and down through rolling pipe to drive the whole window curtain. It is widely used in formal occasions such as office, office building, bank and school. It is one of the most common office window curtains. Rolling window curtain is installed on the pulley at one end of the rotating roller of the rolling window curtain through the ring-shaped rope, chain or net (hereinafter referred to as "pull rope") to guide the pull rope to fall from the roller. The ring-shaped pull rope must have sufficient length to facilitate user use. However, due to the closed or continuous ring-shaped nature of the pull rope, various dangerous risks exist. In particular, such pull ropes pose a significant threat to young children, who can easily become entangled in them, possibly leading to strangulation. It is reported that at least 6 children die in the UK every year. Therefore, foreign countries have invented patent No. AU2015270448B2. The operating mechanism of the rolling window curtain of the invention seals the pull rope in the operating mechanism to prevent the risk of injury to young children. However, the technical solution of the invention is relatively complex, the production cost is too high, and it is not conducive to the promotion and application of the operating mechanism. SUMMARY

[0003] The present application aims to solve the problem of complex structure and high production cost of the operating mechanism of the rolling window curtain in the prior art. The present application provides a rolling window curtain operating mechanism. The present application has a simple structure and low production cost. The pull rope is sealed in the operating mechanism to prevent the risk of injury to young children.

[0004] The present application aims to solve the problem of complex structure and high production cost of the operating mechanism of the rolling window curtain in the prior art. The present application provides a rolling window curtain operating mechanism. The present application has a simple structure and low production cost. The pull rope is sealed in the operating mechanism to prevent the risk of injury to young children.

[0005] In the above-mentioned scheme, the present application seals the pull rope in the operating mechanism to prevent the risk of injury to young children. When pulling the pull rope, the present application slides downward along the direction of the pull rope. During the process of sliding downward, the end of the guide device will clamp the pull rope between the locking columns, so that the present application will clamp the pull rope in the present application and move downward together when the present application moves downward, so as to make the rolling window curtain be pulled up or down.

[0006] As preferred, the guiding device comprises a rotating part and an operating holding part, the rotating part and the operating holding part are connected, the guiding wheel is arranged in the operating holding part, the bottom of the guiding wheel is provided with a spring, and the other end of the spring is arranged at the end of the operating holding part far from the rotating part. When the operating mechanism moves downward, the spring will pull the guiding wheel tight, and when the operating mechanism releases the downward pulling force, the guiding wheel will automatically relax to release the clamping of the pulling rope of the locking device, the guiding device returns to the vertical state, and the pulling rope is not in the clamped state, so that when the operating mechanism moves upward, the pulling rope will not be pulled together.

[0007] As preferred, the rotating part comprises a cylindrical rotating column at the end, the lower end of the rotating column is fixedly connected with a clamping part connected with the operating holding part, the clamping part has a width greater than the diameter of the rotating column at both sides, and the two sides of the rotating column are provided with channels for the pulling rope to enter and exit the rotating part to the operating holding part. The cylindrical rotating column facilitates rotation and movement.

[0008] As preferred, the locking device comprises a shell, a guiding groove for the movement of the rotating column is fixedly arranged in the shell, the middle of the guiding groove is higher than the two sides, the middle of the guiding groove is located in the middle of the shell, and the two sides of the guiding groove are symmetrically fixedly provided with locking columns at positions deviated upward.

[0009] As preferred, the locking device comprises a shell, a guiding groove for the movement of the rotating column is fixedly arranged in the shell, the middle of the guiding groove is higher than the two sides, the middle of the guiding groove is located in the middle of the shell, and the two sides of the guiding groove are symmetrically fixedly provided with locking columns at positions deviated upward.

[0010] As preferred, the surface of the locking column is provided with meshing teeth to increase the friction with the pulling rope.

[0011] As preferred, the locking column activity space is provided with a rack on the side wall of the outer wall of the shell, which is meshed with the meshing teeth.

[0012] As preferred, the pulling rope is a pulling rope with a pulling bead or a pulling rope without a pulling bead, and the present application is suitable for both the pulling bead rope and the smooth pulling rope.

[0013] As preferred, the upper end of the locking device is open, and the opening is provided with a guiding piece for guiding the pulling rope to enter and exit.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] When pulling the pull rope, the present application slides downward along the direction of the pull rope, and in the process of sliding downward, the end of the guiding device will clamp the pull rope between the locking columns, so that when the present application moves downward, the pull rope will be clamped in the present application and move downward together, so as to pull up or put down the roller blind;

[0016] The present application encloses the pull rope in the operating mechanism, preventing the risk of injury to young children. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 is a structural schematic diagram of the present application when the pull rope is a non-bead pull rope;

[0018] Figure 2 Fig. 2 is a structural schematic diagram of the present application when the pull rope is a pull bead rope;

[0019] Figure 3 Fig. 3 is an exploded view of the structure of the present application;

[0020] Figure 4 Fig. 4 is a structural schematic diagram of the present application after the shell is cut in half;

[0021] Figure 5 Fig. 5 is a structural schematic diagram of the guiding device;

[0022] Figure 6 Fig. 6 is a schematic diagram of the use state of Example 1;

[0023] Figure 7 Fig. 7 is a schematic diagram of the use state of Example 2.

[0024] Marked in the figure: 1, pull rope; 2, locking device; 21, shell; 22, locking column; 23, rack; 24, guiding groove; 25, isolation wall; 3, guiding device; 31, guiding wheel; 32, spring; 33, rotating part; 331, rotating column; 332, clamping part; 34, operating grip; 4, guiding piece. DETAILED DESCRIPTION

[0025] The present application will be further described below in conjunction with the embodiments represented in the accompanying drawings:

[0026] Example 1

[0027] As shown in the drawings, a roller blind operating mechanism includes a locking device 2 and a guiding device 3: Figures 1 to 6 The upper end of the locking device 2 is open, and the guiding piece 4 for guiding the pull rope 1 in and out is arranged in the opening.

[0028]

[0029] ​The locking device 2 comprises a housing 21, a guide groove 24 is fixedly arranged in the housing 21, the middle of the guide groove 24 is higher than the two sides, the middle of the guide groove 24 is located in the middle of the housing 21, and the two sides of the guide groove 24 are symmetrically and fixedly arranged with locking columns 22 which are located at upper positions.

[0030] The guide device 3 comprises a rotating part 33 and an operating holding part 34, the rotating part 33 and the operating holding part 34 are clamped, the guide wheel 31 is arranged in the operating holding part 34, the bottom of the guide wheel 31 is provided with a spring 32, and the other end of the spring 32 is arranged at one end of the operating holding part 34 which is away from the rotating part 33.

[0031] The rotating part 33 comprises a cylindrical rotating column 331 located at an end, a clamping part 332 is fixedly connected to the lower end of the rotating column 331 and clamped with the operating holding part 34, the width of the two sides of the clamping part 332 is greater than the diameter of the rotating column 331, and the two sides of the rotating column 331 are provided with passages through which the pull rope 1 enters or exits the rotating part 33 to the operating holding part 34. The rotating column 331 is arranged in the guide groove 24 and can move and rotate in the guide groove 24.

[0032] The surface of the above-mentioned locking column 22 is provided with meshing teeth to increase the friction with the pull rope 1.

[0033] The above-mentioned pull rope 1 is a pull rope with a pull bead or a pull rope without a pull bead, and the present application is suitable for both the pull bead rope and the smooth pull rope.

[0034] Principle of operation:

[0035] The lowering or lifting of the roller blind needs to pull the pull rope 1 on one side to move downward, the present application can slide up and down along the direction of the pull rope 1, in the process of downward sliding, the guide device 3 needs to rotate reversely to the pull rope 1 which needs to be pulled, and the rotating part 33 reversely moves from the middle position of the guide groove 24 to the pull rope 1 on this side, so that the rotating column 331 clamps the pull rope 1 between the rotating column 331 and the locking column 22, so that the present application moves downward and clamps the pull rope 1 in the present application and moves downward together, so as to lift or lower the roller blind.

[0036] The bottom of the guide wheel 31 is provided with a spring 32, the other end of the spring 32 is fixed in the operating holding part 34. When the present operating mechanism moves downward, the spring 32 will pull the guide wheel 31 tightly, so as to pull the pull rope 1 tightly and clamp the pull rope 1. When the downward pulling force of the present operating mechanism is released, the guide wheel 31 is automatically released, so that the clamped pull rope 1 of the guide device 3 and the locking device 2 is released, the guide device 3 returns to the vertical state, the pull rope 1 is not in the clamped state, so that when the present operating mechanism moves upward, the pull rope 1 will not be driven together.

[0037] Example 2

[0038] AsFigures 1 to 5 、 Figure 7 As shown in Fig. 1, a roller shutter operating mechanism comprises a locking device 2 and a guiding device 3:

[0039] The upper end of the locking device 2 is open, and a guiding piece 4 is arranged in the opening to guide the in-and-out of the pull rope 1.

[0040] The locking device 2 comprises a housing 21, and a guiding groove 24 is fixedly arranged in the housing 21 to move a rotating column 331. The middle of the guiding groove 24 is higher than the two sides, the middle of the guiding groove 24 is located in the middle of the housing 21, and the two sides of the guiding groove 24 are arranged with movable locking columns 22 at positions higher than the middle. A vertical partition wall 25 is arranged at the highest position of the middle of the guiding groove 24 to form two symmetrical locking column 22 moving spaces in the housing 21, and the locking columns 22 are respectively located on the left and right sides of the partition wall 25.

[0041] The rotating part 33 comprises a cylindrical rotating column 331 at the end, and a clamping part 332 is fixedly connected to the lower end of the rotating column 331 and connected to the operating handle 34. The width of the two sides of the clamping part 332 is greater than the diameter of the rotating column 331, and the two sides of the rotating column 331 are provided with a channel for the pull rope 1 to enter and exit the rotating part 33 to the operating handle 34. The rotating column 331 is arranged in the guiding groove 24, and the rotating column 331 can move and rotate in the guiding groove 24.

[0042] The surface of the locking column 22 is provided with meshing teeth to increase the friction with the pull rope 1.

[0043] The side wall of the locking column 22 moving space towards the outer wall of the housing 21 is provided with a rack 23 which is engaged with the meshing teeth.

[0044] The pull rope 1 is a pull rope with a pull bead or a pull rope without a pull bead, and the present application is suitable for both pull bead ropes and smooth pull ropes.

[0045] Operating principle:

[0046] The lowering or lifting of the roller blind requires pulling the pull cord 1 on one side to move downwards. The present application can slide up and down along the direction of the pull cord 1. During the process of sliding downwards, the guide device 3 needs to rotate reversely to the side of the pull cord 1 that needs to be pulled, and the rotating part 33 reversely moves from the middle position of the guide groove 24 to the pull cord 1 on that side. The rotating part 33 pushes the pull cord 1 to the locking column 22 and the locking column 22 contacts. Since the present application is sliding downwards at this time, the locking column 22 can move upwards in the active space due to the friction of the pull cord 1, and the locking column 22 moves upwards in the active space until the locking column 22 moves to the upper end of the active space. After the locking column 22 cannot move, the locking column 22 and the rotating column 331 clamp the pull cord 1 therebetween, so that the pull cord 1 cannot move relative to the locking column 22 and the rotating column 331. Thus, the present application clamps the pull cord 1 inside and moves downwards together when the present application moves downwards, so as to lift or lower the roller blind.

[0047] The locking column 22 is provided with a rack 23 on the side wall of the outer wall of the housing 21, and the meshing teeth on the surface of the locking column 22 can mesh with each other. When the locking column 22 is located at the upper end of the active space and the present application continues to slide downwards, the pull cord 1 will have a force to slide the locking column 22 downwards. The meshing teeth on the surface of the locking column 22 and the rack 23 can keep the locking column 22 fixed in position when the present application slides downwards.

[0048] The bottom of the guide wheel 31 is provided with a spring 32, and the other end of the spring 32 is fixed to the operating grip part 34. When the present operating mechanism moves downwards, the spring 32 will be pulled tight to pull the pull cord 1 tight, so as to clamp the pull cord 1. When the present operating mechanism releases the downward pulling force, the guide wheel 31 is automatically released, so as to release the clamping of the pull cord 1 by the guide device 3 and the locking device 2. The guide device 3 returns to the vertical state, so that the pull cord 1 is not in the clamped state, and the pull cord 1 will not be driven together when the present operating mechanism moves upwards.

[0049] The specific embodiments described in the present application are only examples to illustrate the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A roller blind operating mechanism, characterised in that, The application relates to a locking device (2) and a guide device (3), one end of the guide device (3) is arranged in the locking device (2), the guide device (3) can rotate and move relative to the locking device (2), a guide wheel (31) is arranged in the guide device (3), a part of a loop-shaped pull rope (1) enters the guide device (3) through the locking device (2) and passes through the guide wheel (31) to realize the circulating movement of the pull rope (1); the locking device (2) is provided with locking columns (22), the locking columns (22) are respectively arranged on the two sides of the guide device (3), when the guide device (3) rotates and moves, the guide device (3) moves towards the locking column (22) on one rotating and moving side, so that the pull rope (1) is locked between the guide device (3) and the locking column (22); The guide device (3) comprises a rotating part (33) and an operation holding part (34), the rotating part (33) and the operation holding part (34) are clamped, the guide wheel (31) is arranged in the operation holding part (34), the bottom of the guide wheel (31) is provided with a spring (32), and the other end of the spring (32) is arranged at one end of the operation holding part (34) away from the rotating part (33); The rotating part (33) comprises a cylindrical rotating column (331) arranged at one end, a clamping part (332) fixedly connected with the operation holding part (34) at the lower end of the rotating column (331), the clamping part (332) is wider than the diameter of the rotating column (331) on the two sides, and the two sides of the rotating column (331) are provided with channels for the pull rope (1) to enter and exit the rotating part (33) and enter and exit the operation holding part (34); The locking device (2) comprises a shell (21), the shell (21) is fixedly provided with a guide groove (24) for the movement of the rotating column (331), the middle of the guide groove (24) is higher than the two sides, the middle of the guide groove (24) is located in the middle of the shell (21), and the two sides of the guide groove (24) are symmetrically and fixedly provided with the locking columns (22) at positions deviated upwards; Alternatively, the locking device (2) comprises a shell (21), the shell (21) is fixedly provided with a guide groove (24) for the movement of the rotating column (331), the middle of the guide groove (24) is higher than the two sides, the middle of the guide groove (24) is located in the middle of the shell (21), the two sides of the guide groove (24) are respectively provided with movable locking columns (22) at positions deviated upwards, the highest position of the middle of the guide groove (24) is provided with a partition wall (25) vertical to the shell, so that the locking column (22) moving space is formed in the shell (21) and the two locking columns (22) are symmetrically arranged on the left and right sides of the partition wall (25).

2. A roller blind operating mechanism according to claim 1, characterised in that, The surface of the locking column (22) is provided with meshing teeth.

3. A roller blind operating mechanism according to claim 2, wherein The side wall of the locking column (22) moving space towards the outer wall of the shell (21) is provided with a rack (23) meshing with the meshing teeth.

4. The roller blind operating mechanism according to claim 1, characterized in that The pull rope (1) is a pull rope with a pull bead or a pull rope without a pull bead.

5. The roller blind operating mechanism according to claim 1, characterized in that The upper end of the locking device (2) is provided with a guide piece (4) for guiding the pull rope (1) to enter and exit.

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